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 indent_guides;
29mod inlay_hint_cache;
30pub mod items;
31mod linked_editing_ranges;
32mod lsp_ext;
33mod mouse_context_menu;
34pub mod movement;
35mod persistence;
36mod proposed_changes_editor;
37mod rust_analyzer_ext;
38pub mod scroll;
39mod selections_collection;
40pub mod tasks;
41
42#[cfg(test)]
43mod editor_tests;
44#[cfg(test)]
45mod inline_completion_tests;
46mod signature_help;
47#[cfg(any(test, feature = "test-support"))]
48pub mod test;
49
50use ::git::diff::DiffHunkStatus;
51pub(crate) use actions::*;
52pub use actions::{OpenExcerpts, OpenExcerptsSplit};
53use aho_corasick::AhoCorasick;
54use anyhow::{anyhow, Context as _, Result};
55use blink_manager::BlinkManager;
56use client::{Collaborator, ParticipantIndex};
57use clock::ReplicaId;
58use collections::{BTreeMap, HashMap, HashSet, VecDeque};
59use convert_case::{Case, Casing};
60use display_map::*;
61pub use display_map::{DisplayPoint, FoldPlaceholder};
62pub use editor_settings::{
63 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
64};
65pub use editor_settings_controls::*;
66use element::LineWithInvisibles;
67pub use element::{
68 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
69};
70use futures::{future, FutureExt};
71use fuzzy::StringMatchCandidate;
72use zed_predict_tos::ZedPredictTos;
73
74use code_context_menus::{
75 AvailableCodeAction, CodeActionContents, CodeActionsItem, CodeActionsMenu, CodeContextMenu,
76 CompletionEntry, CompletionsMenu, ContextMenuOrigin,
77};
78use git::blame::GitBlame;
79use gpui::{
80 div, impl_actions, point, prelude::*, px, relative, size, Action, AnyElement, AppContext,
81 AsyncWindowContext, AvailableSpace, Bounds, ClipboardEntry, ClipboardItem, Context,
82 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent, FocusableView, FontId,
83 FontWeight, Global, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, ModelContext,
84 MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString, Size, Styled, StyledText,
85 Subscription, Task, TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle,
86 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle,
87 WeakView, WindowContext,
88};
89use highlight_matching_bracket::refresh_matching_bracket_highlights;
90use hover_popover::{hide_hover, HoverState};
91use indent_guides::ActiveIndentGuidesState;
92use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
93pub use inline_completion::Direction;
94use inline_completion::{InlineCompletionProvider, InlineCompletionProviderHandle};
95pub use items::MAX_TAB_TITLE_LEN;
96use itertools::Itertools;
97use language::{
98 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
99 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
100 CursorShape, Diagnostic, Documentation, EditPreview, HighlightedEdits, IndentKind, IndentSize,
101 Language, OffsetRangeExt, Point, Selection, SelectionGoal, TextObject, TransactionId,
102 TreeSitterOptions,
103};
104use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
105use linked_editing_ranges::refresh_linked_ranges;
106use mouse_context_menu::MouseContextMenu;
107pub use proposed_changes_editor::{
108 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
109};
110use similar::{ChangeTag, TextDiff};
111use std::iter::Peekable;
112use task::{ResolvedTask, TaskTemplate, TaskVariables};
113
114use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
115pub use lsp::CompletionContext;
116use lsp::{
117 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
118 LanguageServerId, LanguageServerName,
119};
120
121use language::BufferSnapshot;
122use movement::TextLayoutDetails;
123pub use multi_buffer::{
124 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, RowInfo,
125 ToOffset, ToPoint,
126};
127use multi_buffer::{
128 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
129};
130use project::{
131 lsp_store::{FormatTrigger, LspFormatTarget, OpenLspBufferHandle},
132 project_settings::{GitGutterSetting, ProjectSettings},
133 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
134 LspStore, PrepareRenameResponse, Project, ProjectItem, ProjectTransaction, TaskSourceKind,
135};
136use rand::prelude::*;
137use rpc::{proto::*, ErrorExt};
138use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
139use selections_collection::{
140 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
141};
142use serde::{Deserialize, Serialize};
143use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
144use smallvec::SmallVec;
145use snippet::Snippet;
146use std::{
147 any::TypeId,
148 borrow::Cow,
149 cell::RefCell,
150 cmp::{self, Ordering, Reverse},
151 mem,
152 num::NonZeroU32,
153 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
154 path::{Path, PathBuf},
155 rc::Rc,
156 sync::Arc,
157 time::{Duration, Instant},
158};
159pub use sum_tree::Bias;
160use sum_tree::TreeMap;
161use text::{BufferId, OffsetUtf16, Rope};
162use theme::{ActiveTheme, PlayerColor, StatusColors, SyntaxTheme, ThemeColors, ThemeSettings};
163use ui::{
164 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
165 Tooltip,
166};
167use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
168use workspace::item::{ItemHandle, PreviewTabsSettings};
169use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
170use workspace::{
171 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
172};
173use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
174
175use crate::hover_links::{find_url, find_url_from_range};
176use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
177
178pub const FILE_HEADER_HEIGHT: u32 = 2;
179pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
180pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
181pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
182const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
183const MAX_LINE_LEN: usize = 1024;
184const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
185const MAX_SELECTION_HISTORY_LEN: usize = 1024;
186pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
187#[doc(hidden)]
188pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
189
190pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
191pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
192
193pub fn render_parsed_markdown(
194 element_id: impl Into<ElementId>,
195 parsed: &language::ParsedMarkdown,
196 editor_style: &EditorStyle,
197 workspace: Option<WeakView<Workspace>>,
198 cx: &mut WindowContext,
199) -> InteractiveText {
200 let code_span_background_color = cx
201 .theme()
202 .colors()
203 .editor_document_highlight_read_background;
204
205 let highlights = gpui::combine_highlights(
206 parsed.highlights.iter().filter_map(|(range, highlight)| {
207 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
208 Some((range.clone(), highlight))
209 }),
210 parsed
211 .regions
212 .iter()
213 .zip(&parsed.region_ranges)
214 .filter_map(|(region, range)| {
215 if region.code {
216 Some((
217 range.clone(),
218 HighlightStyle {
219 background_color: Some(code_span_background_color),
220 ..Default::default()
221 },
222 ))
223 } else {
224 None
225 }
226 }),
227 );
228
229 let mut links = Vec::new();
230 let mut link_ranges = Vec::new();
231 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
232 if let Some(link) = region.link.clone() {
233 links.push(link);
234 link_ranges.push(range.clone());
235 }
236 }
237
238 InteractiveText::new(
239 element_id,
240 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
241 )
242 .on_click(link_ranges, move |clicked_range_ix, cx| {
243 match &links[clicked_range_ix] {
244 markdown::Link::Web { url } => cx.open_url(url),
245 markdown::Link::Path { path } => {
246 if let Some(workspace) = &workspace {
247 _ = workspace.update(cx, |workspace, cx| {
248 workspace.open_abs_path(path.clone(), false, cx).detach();
249 });
250 }
251 }
252 }
253 })
254}
255
256#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
257pub enum InlayId {
258 InlineCompletion(usize),
259 Hint(usize),
260}
261
262impl InlayId {
263 fn id(&self) -> usize {
264 match self {
265 Self::InlineCompletion(id) => *id,
266 Self::Hint(id) => *id,
267 }
268 }
269}
270
271enum DocumentHighlightRead {}
272enum DocumentHighlightWrite {}
273enum InputComposition {}
274
275#[derive(Debug, Copy, Clone, PartialEq, Eq)]
276pub enum Navigated {
277 Yes,
278 No,
279}
280
281impl Navigated {
282 pub fn from_bool(yes: bool) -> Navigated {
283 if yes {
284 Navigated::Yes
285 } else {
286 Navigated::No
287 }
288 }
289}
290
291pub fn init_settings(cx: &mut AppContext) {
292 EditorSettings::register(cx);
293}
294
295pub fn init(cx: &mut AppContext) {
296 init_settings(cx);
297
298 workspace::register_project_item::<Editor>(cx);
299 workspace::FollowableViewRegistry::register::<Editor>(cx);
300 workspace::register_serializable_item::<Editor>(cx);
301
302 cx.observe_new_views(
303 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
304 workspace.register_action(Editor::new_file);
305 workspace.register_action(Editor::new_file_vertical);
306 workspace.register_action(Editor::new_file_horizontal);
307 },
308 )
309 .detach();
310
311 cx.on_action(move |_: &workspace::NewFile, cx| {
312 let app_state = workspace::AppState::global(cx);
313 if let Some(app_state) = app_state.upgrade() {
314 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
315 Editor::new_file(workspace, &Default::default(), cx)
316 })
317 .detach();
318 }
319 });
320 cx.on_action(move |_: &workspace::NewWindow, cx| {
321 let app_state = workspace::AppState::global(cx);
322 if let Some(app_state) = app_state.upgrade() {
323 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
324 Editor::new_file(workspace, &Default::default(), cx)
325 })
326 .detach();
327 }
328 });
329 git::project_diff::init(cx);
330}
331
332pub struct SearchWithinRange;
333
334trait InvalidationRegion {
335 fn ranges(&self) -> &[Range<Anchor>];
336}
337
338#[derive(Clone, Debug, PartialEq)]
339pub enum SelectPhase {
340 Begin {
341 position: DisplayPoint,
342 add: bool,
343 click_count: usize,
344 },
345 BeginColumnar {
346 position: DisplayPoint,
347 reset: bool,
348 goal_column: u32,
349 },
350 Extend {
351 position: DisplayPoint,
352 click_count: usize,
353 },
354 Update {
355 position: DisplayPoint,
356 goal_column: u32,
357 scroll_delta: gpui::Point<f32>,
358 },
359 End,
360}
361
362#[derive(Clone, Debug)]
363pub enum SelectMode {
364 Character,
365 Word(Range<Anchor>),
366 Line(Range<Anchor>),
367 All,
368}
369
370#[derive(Copy, Clone, PartialEq, Eq, Debug)]
371pub enum EditorMode {
372 SingleLine { auto_width: bool },
373 AutoHeight { max_lines: usize },
374 Full,
375}
376
377#[derive(Copy, Clone, Debug)]
378pub enum SoftWrap {
379 /// Prefer not to wrap at all.
380 ///
381 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
382 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
383 GitDiff,
384 /// Prefer a single line generally, unless an overly long line is encountered.
385 None,
386 /// Soft wrap lines that exceed the editor width.
387 EditorWidth,
388 /// Soft wrap lines at the preferred line length.
389 Column(u32),
390 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
391 Bounded(u32),
392}
393
394#[derive(Clone)]
395pub struct EditorStyle {
396 pub background: Hsla,
397 pub local_player: PlayerColor,
398 pub text: TextStyle,
399 pub scrollbar_width: Pixels,
400 pub syntax: Arc<SyntaxTheme>,
401 pub status: StatusColors,
402 pub inlay_hints_style: HighlightStyle,
403 pub inline_completion_styles: InlineCompletionStyles,
404 pub unnecessary_code_fade: f32,
405}
406
407impl Default for EditorStyle {
408 fn default() -> Self {
409 Self {
410 background: Hsla::default(),
411 local_player: PlayerColor::default(),
412 text: TextStyle::default(),
413 scrollbar_width: Pixels::default(),
414 syntax: Default::default(),
415 // HACK: Status colors don't have a real default.
416 // We should look into removing the status colors from the editor
417 // style and retrieve them directly from the theme.
418 status: StatusColors::dark(),
419 inlay_hints_style: HighlightStyle::default(),
420 inline_completion_styles: InlineCompletionStyles {
421 insertion: HighlightStyle::default(),
422 whitespace: HighlightStyle::default(),
423 },
424 unnecessary_code_fade: Default::default(),
425 }
426 }
427}
428
429pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
430 let show_background = language_settings::language_settings(None, None, cx)
431 .inlay_hints
432 .show_background;
433
434 HighlightStyle {
435 color: Some(cx.theme().status().hint),
436 background_color: show_background.then(|| cx.theme().status().hint_background),
437 ..HighlightStyle::default()
438 }
439}
440
441pub fn make_suggestion_styles(cx: &WindowContext) -> InlineCompletionStyles {
442 InlineCompletionStyles {
443 insertion: HighlightStyle {
444 color: Some(cx.theme().status().predictive),
445 ..HighlightStyle::default()
446 },
447 whitespace: HighlightStyle {
448 background_color: Some(cx.theme().status().created_background),
449 ..HighlightStyle::default()
450 },
451 }
452}
453
454type CompletionId = usize;
455
456#[derive(Debug, Clone)]
457enum InlineCompletionMenuHint {
458 Loading,
459 Loaded { text: InlineCompletionText },
460 PendingTermsAcceptance,
461 None,
462}
463
464impl InlineCompletionMenuHint {
465 pub fn label(&self) -> &'static str {
466 match self {
467 InlineCompletionMenuHint::Loading | InlineCompletionMenuHint::Loaded { .. } => {
468 "Edit Prediction"
469 }
470 InlineCompletionMenuHint::PendingTermsAcceptance => "Accept Terms of Service",
471 InlineCompletionMenuHint::None => "No Prediction",
472 }
473 }
474}
475
476#[derive(Clone, Debug)]
477enum InlineCompletionText {
478 Move(SharedString),
479 Edit(HighlightedEdits),
480}
481
482pub(crate) enum EditDisplayMode {
483 TabAccept,
484 DiffPopover,
485 Inline,
486}
487
488enum InlineCompletion {
489 Edit {
490 edits: Vec<(Range<Anchor>, String)>,
491 edit_preview: Option<EditPreview>,
492 display_mode: EditDisplayMode,
493 snapshot: BufferSnapshot,
494 },
495 Move(Anchor),
496}
497
498struct InlineCompletionState {
499 inlay_ids: Vec<InlayId>,
500 completion: InlineCompletion,
501 invalidation_range: Range<Anchor>,
502}
503
504enum InlineCompletionHighlight {}
505
506pub enum MenuInlineCompletionsPolicy {
507 Never,
508 ByProvider,
509}
510
511#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
512struct EditorActionId(usize);
513
514impl EditorActionId {
515 pub fn post_inc(&mut self) -> Self {
516 let answer = self.0;
517
518 *self = Self(answer + 1);
519
520 Self(answer)
521 }
522}
523
524// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
525// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
526
527type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
528type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
529
530#[derive(Default)]
531struct ScrollbarMarkerState {
532 scrollbar_size: Size<Pixels>,
533 dirty: bool,
534 markers: Arc<[PaintQuad]>,
535 pending_refresh: Option<Task<Result<()>>>,
536}
537
538impl ScrollbarMarkerState {
539 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
540 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
541 }
542}
543
544#[derive(Clone, Debug)]
545struct RunnableTasks {
546 templates: Vec<(TaskSourceKind, TaskTemplate)>,
547 offset: MultiBufferOffset,
548 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
549 column: u32,
550 // Values of all named captures, including those starting with '_'
551 extra_variables: HashMap<String, String>,
552 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
553 context_range: Range<BufferOffset>,
554}
555
556impl RunnableTasks {
557 fn resolve<'a>(
558 &'a self,
559 cx: &'a task::TaskContext,
560 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
561 self.templates.iter().filter_map(|(kind, template)| {
562 template
563 .resolve_task(&kind.to_id_base(), cx)
564 .map(|task| (kind.clone(), task))
565 })
566 }
567}
568
569#[derive(Clone)]
570struct ResolvedTasks {
571 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
572 position: Anchor,
573}
574#[derive(Copy, Clone, Debug)]
575struct MultiBufferOffset(usize);
576#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
577struct BufferOffset(usize);
578
579// Addons allow storing per-editor state in other crates (e.g. Vim)
580pub trait Addon: 'static {
581 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
582
583 fn to_any(&self) -> &dyn std::any::Any;
584}
585
586#[derive(Debug, Copy, Clone, PartialEq, Eq)]
587pub enum IsVimMode {
588 Yes,
589 No,
590}
591
592/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
593///
594/// See the [module level documentation](self) for more information.
595pub struct Editor {
596 focus_handle: FocusHandle,
597 last_focused_descendant: Option<WeakFocusHandle>,
598 /// The text buffer being edited
599 buffer: Model<MultiBuffer>,
600 /// Map of how text in the buffer should be displayed.
601 /// Handles soft wraps, folds, fake inlay text insertions, etc.
602 pub display_map: Model<DisplayMap>,
603 pub selections: SelectionsCollection,
604 pub scroll_manager: ScrollManager,
605 /// When inline assist editors are linked, they all render cursors because
606 /// typing enters text into each of them, even the ones that aren't focused.
607 pub(crate) show_cursor_when_unfocused: bool,
608 columnar_selection_tail: Option<Anchor>,
609 add_selections_state: Option<AddSelectionsState>,
610 select_next_state: Option<SelectNextState>,
611 select_prev_state: Option<SelectNextState>,
612 selection_history: SelectionHistory,
613 autoclose_regions: Vec<AutocloseRegion>,
614 snippet_stack: InvalidationStack<SnippetState>,
615 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
616 ime_transaction: Option<TransactionId>,
617 active_diagnostics: Option<ActiveDiagnosticGroup>,
618 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
619
620 project: Option<Model<Project>>,
621 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
622 completion_provider: Option<Box<dyn CompletionProvider>>,
623 collaboration_hub: Option<Box<dyn CollaborationHub>>,
624 blink_manager: Model<BlinkManager>,
625 show_cursor_names: bool,
626 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
627 pub show_local_selections: bool,
628 mode: EditorMode,
629 show_breadcrumbs: bool,
630 show_gutter: bool,
631 show_scrollbars: bool,
632 show_line_numbers: Option<bool>,
633 use_relative_line_numbers: Option<bool>,
634 show_git_diff_gutter: Option<bool>,
635 show_code_actions: Option<bool>,
636 show_runnables: Option<bool>,
637 show_wrap_guides: Option<bool>,
638 show_indent_guides: Option<bool>,
639 placeholder_text: Option<Arc<str>>,
640 highlight_order: usize,
641 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
642 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
643 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
644 scrollbar_marker_state: ScrollbarMarkerState,
645 active_indent_guides_state: ActiveIndentGuidesState,
646 nav_history: Option<ItemNavHistory>,
647 context_menu: RefCell<Option<CodeContextMenu>>,
648 mouse_context_menu: Option<MouseContextMenu>,
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 menu_inline_completions_policy: MenuInlineCompletionsPolicy,
682 inlay_hint_cache: InlayHintCache,
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 is_focused: bool,
753 scroll_anchor: ScrollAnchor,
754 ongoing_scroll: OngoingScroll,
755 current_line_highlight: CurrentLineHighlight,
756 gutter_hovered: bool,
757}
758
759const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
760
761#[derive(Default, Debug, Clone, Copy)]
762pub struct GutterDimensions {
763 pub left_padding: Pixels,
764 pub right_padding: Pixels,
765 pub width: Pixels,
766 pub margin: Pixels,
767 pub git_blame_entries_width: Option<Pixels>,
768}
769
770impl GutterDimensions {
771 /// The full width of the space taken up by the gutter.
772 pub fn full_width(&self) -> Pixels {
773 self.margin + self.width
774 }
775
776 /// The width of the space reserved for the fold indicators,
777 /// use alongside 'justify_end' and `gutter_width` to
778 /// right align content with the line numbers
779 pub fn fold_area_width(&self) -> Pixels {
780 self.margin + self.right_padding
781 }
782}
783
784#[derive(Debug)]
785pub struct RemoteSelection {
786 pub replica_id: ReplicaId,
787 pub selection: Selection<Anchor>,
788 pub cursor_shape: CursorShape,
789 pub peer_id: PeerId,
790 pub line_mode: bool,
791 pub participant_index: Option<ParticipantIndex>,
792 pub user_name: Option<SharedString>,
793}
794
795#[derive(Clone, Debug)]
796struct SelectionHistoryEntry {
797 selections: Arc<[Selection<Anchor>]>,
798 select_next_state: Option<SelectNextState>,
799 select_prev_state: Option<SelectNextState>,
800 add_selections_state: Option<AddSelectionsState>,
801}
802
803enum SelectionHistoryMode {
804 Normal,
805 Undoing,
806 Redoing,
807}
808
809#[derive(Clone, PartialEq, Eq, Hash)]
810struct HoveredCursor {
811 replica_id: u16,
812 selection_id: usize,
813}
814
815impl Default for SelectionHistoryMode {
816 fn default() -> Self {
817 Self::Normal
818 }
819}
820
821#[derive(Default)]
822struct SelectionHistory {
823 #[allow(clippy::type_complexity)]
824 selections_by_transaction:
825 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
826 mode: SelectionHistoryMode,
827 undo_stack: VecDeque<SelectionHistoryEntry>,
828 redo_stack: VecDeque<SelectionHistoryEntry>,
829}
830
831impl SelectionHistory {
832 fn insert_transaction(
833 &mut self,
834 transaction_id: TransactionId,
835 selections: Arc<[Selection<Anchor>]>,
836 ) {
837 self.selections_by_transaction
838 .insert(transaction_id, (selections, None));
839 }
840
841 #[allow(clippy::type_complexity)]
842 fn transaction(
843 &self,
844 transaction_id: TransactionId,
845 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
846 self.selections_by_transaction.get(&transaction_id)
847 }
848
849 #[allow(clippy::type_complexity)]
850 fn transaction_mut(
851 &mut self,
852 transaction_id: TransactionId,
853 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
854 self.selections_by_transaction.get_mut(&transaction_id)
855 }
856
857 fn push(&mut self, entry: SelectionHistoryEntry) {
858 if !entry.selections.is_empty() {
859 match self.mode {
860 SelectionHistoryMode::Normal => {
861 self.push_undo(entry);
862 self.redo_stack.clear();
863 }
864 SelectionHistoryMode::Undoing => self.push_redo(entry),
865 SelectionHistoryMode::Redoing => self.push_undo(entry),
866 }
867 }
868 }
869
870 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
871 if self
872 .undo_stack
873 .back()
874 .map_or(true, |e| e.selections != entry.selections)
875 {
876 self.undo_stack.push_back(entry);
877 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
878 self.undo_stack.pop_front();
879 }
880 }
881 }
882
883 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
884 if self
885 .redo_stack
886 .back()
887 .map_or(true, |e| e.selections != entry.selections)
888 {
889 self.redo_stack.push_back(entry);
890 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
891 self.redo_stack.pop_front();
892 }
893 }
894 }
895}
896
897struct RowHighlight {
898 index: usize,
899 range: Range<Anchor>,
900 color: Hsla,
901 should_autoscroll: bool,
902}
903
904#[derive(Clone, Debug)]
905struct AddSelectionsState {
906 above: bool,
907 stack: Vec<usize>,
908}
909
910#[derive(Clone)]
911struct SelectNextState {
912 query: AhoCorasick,
913 wordwise: bool,
914 done: bool,
915}
916
917impl std::fmt::Debug for SelectNextState {
918 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
919 f.debug_struct(std::any::type_name::<Self>())
920 .field("wordwise", &self.wordwise)
921 .field("done", &self.done)
922 .finish()
923 }
924}
925
926#[derive(Debug)]
927struct AutocloseRegion {
928 selection_id: usize,
929 range: Range<Anchor>,
930 pair: BracketPair,
931}
932
933#[derive(Debug)]
934struct SnippetState {
935 ranges: Vec<Vec<Range<Anchor>>>,
936 active_index: usize,
937 choices: Vec<Option<Vec<String>>>,
938}
939
940#[doc(hidden)]
941pub struct RenameState {
942 pub range: Range<Anchor>,
943 pub old_name: Arc<str>,
944 pub editor: View<Editor>,
945 block_id: CustomBlockId,
946}
947
948struct InvalidationStack<T>(Vec<T>);
949
950struct RegisteredInlineCompletionProvider {
951 provider: Arc<dyn InlineCompletionProviderHandle>,
952 _subscription: Subscription,
953}
954
955#[derive(Debug)]
956struct ActiveDiagnosticGroup {
957 primary_range: Range<Anchor>,
958 primary_message: String,
959 group_id: usize,
960 blocks: HashMap<CustomBlockId, Diagnostic>,
961 is_valid: bool,
962}
963
964#[derive(Serialize, Deserialize, Clone, Debug)]
965pub struct ClipboardSelection {
966 pub len: usize,
967 pub is_entire_line: bool,
968 pub first_line_indent: u32,
969}
970
971#[derive(Debug)]
972pub(crate) struct NavigationData {
973 cursor_anchor: Anchor,
974 cursor_position: Point,
975 scroll_anchor: ScrollAnchor,
976 scroll_top_row: u32,
977}
978
979#[derive(Debug, Clone, Copy, PartialEq, Eq)]
980pub enum GotoDefinitionKind {
981 Symbol,
982 Declaration,
983 Type,
984 Implementation,
985}
986
987#[derive(Debug, Clone)]
988enum InlayHintRefreshReason {
989 Toggle(bool),
990 SettingsChange(InlayHintSettings),
991 NewLinesShown,
992 BufferEdited(HashSet<Arc<Language>>),
993 RefreshRequested,
994 ExcerptsRemoved(Vec<ExcerptId>),
995}
996
997impl InlayHintRefreshReason {
998 fn description(&self) -> &'static str {
999 match self {
1000 Self::Toggle(_) => "toggle",
1001 Self::SettingsChange(_) => "settings change",
1002 Self::NewLinesShown => "new lines shown",
1003 Self::BufferEdited(_) => "buffer edited",
1004 Self::RefreshRequested => "refresh requested",
1005 Self::ExcerptsRemoved(_) => "excerpts removed",
1006 }
1007 }
1008}
1009
1010pub enum FormatTarget {
1011 Buffers,
1012 Ranges(Vec<Range<MultiBufferPoint>>),
1013}
1014
1015pub(crate) struct FocusedBlock {
1016 id: BlockId,
1017 focus_handle: WeakFocusHandle,
1018}
1019
1020#[derive(Clone)]
1021enum JumpData {
1022 MultiBufferRow {
1023 row: MultiBufferRow,
1024 line_offset_from_top: u32,
1025 },
1026 MultiBufferPoint {
1027 excerpt_id: ExcerptId,
1028 position: Point,
1029 anchor: text::Anchor,
1030 line_offset_from_top: u32,
1031 },
1032}
1033
1034impl Editor {
1035 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1036 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1037 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1038 Self::new(
1039 EditorMode::SingleLine { auto_width: false },
1040 buffer,
1041 None,
1042 false,
1043 cx,
1044 )
1045 }
1046
1047 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1048 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1049 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1050 Self::new(EditorMode::Full, buffer, None, false, cx)
1051 }
1052
1053 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1054 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1055 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1056 Self::new(
1057 EditorMode::SingleLine { auto_width: true },
1058 buffer,
1059 None,
1060 false,
1061 cx,
1062 )
1063 }
1064
1065 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1066 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1067 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1068 Self::new(
1069 EditorMode::AutoHeight { max_lines },
1070 buffer,
1071 None,
1072 false,
1073 cx,
1074 )
1075 }
1076
1077 pub fn for_buffer(
1078 buffer: Model<Buffer>,
1079 project: Option<Model<Project>>,
1080 cx: &mut ViewContext<Self>,
1081 ) -> Self {
1082 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1083 Self::new(EditorMode::Full, buffer, project, false, cx)
1084 }
1085
1086 pub fn for_multibuffer(
1087 buffer: Model<MultiBuffer>,
1088 project: Option<Model<Project>>,
1089 show_excerpt_controls: bool,
1090 cx: &mut ViewContext<Self>,
1091 ) -> Self {
1092 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1093 }
1094
1095 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1096 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1097 let mut clone = Self::new(
1098 self.mode,
1099 self.buffer.clone(),
1100 self.project.clone(),
1101 show_excerpt_controls,
1102 cx,
1103 );
1104 self.display_map.update(cx, |display_map, cx| {
1105 let snapshot = display_map.snapshot(cx);
1106 clone.display_map.update(cx, |display_map, cx| {
1107 display_map.set_state(&snapshot, cx);
1108 });
1109 });
1110 clone.selections.clone_state(&self.selections);
1111 clone.scroll_manager.clone_state(&self.scroll_manager);
1112 clone.searchable = self.searchable;
1113 clone
1114 }
1115
1116 pub fn new(
1117 mode: EditorMode,
1118 buffer: Model<MultiBuffer>,
1119 project: Option<Model<Project>>,
1120 show_excerpt_controls: bool,
1121 cx: &mut ViewContext<Self>,
1122 ) -> Self {
1123 let style = cx.text_style();
1124 let font_size = style.font_size.to_pixels(cx.rem_size());
1125 let editor = cx.view().downgrade();
1126 let fold_placeholder = FoldPlaceholder {
1127 constrain_width: true,
1128 render: Arc::new(move |fold_id, fold_range, cx| {
1129 let editor = editor.clone();
1130 div()
1131 .id(fold_id)
1132 .bg(cx.theme().colors().ghost_element_background)
1133 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1134 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1135 .rounded_sm()
1136 .size_full()
1137 .cursor_pointer()
1138 .child("⋯")
1139 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1140 .on_click(move |_, cx| {
1141 editor
1142 .update(cx, |editor, cx| {
1143 editor.unfold_ranges(
1144 &[fold_range.start..fold_range.end],
1145 true,
1146 false,
1147 cx,
1148 );
1149 cx.stop_propagation();
1150 })
1151 .ok();
1152 })
1153 .into_any()
1154 }),
1155 merge_adjacent: true,
1156 ..Default::default()
1157 };
1158 let display_map = cx.new_model(|cx| {
1159 DisplayMap::new(
1160 buffer.clone(),
1161 style.font(),
1162 font_size,
1163 None,
1164 show_excerpt_controls,
1165 FILE_HEADER_HEIGHT,
1166 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1167 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1168 fold_placeholder,
1169 cx,
1170 )
1171 });
1172
1173 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1174
1175 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1176
1177 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1178 .then(|| language_settings::SoftWrap::None);
1179
1180 let mut project_subscriptions = Vec::new();
1181 if mode == EditorMode::Full {
1182 if let Some(project) = project.as_ref() {
1183 if buffer.read(cx).is_singleton() {
1184 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1185 cx.emit(EditorEvent::TitleChanged);
1186 }));
1187 }
1188 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1189 if let project::Event::RefreshInlayHints = event {
1190 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1191 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1192 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1193 let focus_handle = editor.focus_handle(cx);
1194 if focus_handle.is_focused(cx) {
1195 let snapshot = buffer.read(cx).snapshot();
1196 for (range, snippet) in snippet_edits {
1197 let editor_range =
1198 language::range_from_lsp(*range).to_offset(&snapshot);
1199 editor
1200 .insert_snippet(&[editor_range], snippet.clone(), cx)
1201 .ok();
1202 }
1203 }
1204 }
1205 }
1206 }));
1207 if let Some(task_inventory) = project
1208 .read(cx)
1209 .task_store()
1210 .read(cx)
1211 .task_inventory()
1212 .cloned()
1213 {
1214 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1215 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1216 }));
1217 }
1218 }
1219 }
1220
1221 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1222
1223 let inlay_hint_settings =
1224 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1225 let focus_handle = cx.focus_handle();
1226 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1227 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1228 .detach();
1229 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1230 .detach();
1231 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1232
1233 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1234 Some(false)
1235 } else {
1236 None
1237 };
1238
1239 let mut code_action_providers = Vec::new();
1240 if let Some(project) = project.clone() {
1241 get_unstaged_changes_for_buffers(
1242 &project,
1243 buffer.read(cx).all_buffers(),
1244 buffer.clone(),
1245 cx,
1246 );
1247 code_action_providers.push(Rc::new(project) as Rc<_>);
1248 }
1249
1250 let mut this = Self {
1251 focus_handle,
1252 show_cursor_when_unfocused: false,
1253 last_focused_descendant: None,
1254 buffer: buffer.clone(),
1255 display_map: display_map.clone(),
1256 selections,
1257 scroll_manager: ScrollManager::new(cx),
1258 columnar_selection_tail: None,
1259 add_selections_state: None,
1260 select_next_state: None,
1261 select_prev_state: None,
1262 selection_history: Default::default(),
1263 autoclose_regions: Default::default(),
1264 snippet_stack: Default::default(),
1265 select_larger_syntax_node_stack: Vec::new(),
1266 ime_transaction: Default::default(),
1267 active_diagnostics: None,
1268 soft_wrap_mode_override,
1269 completion_provider: project.clone().map(|project| Box::new(project) as _),
1270 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1271 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1272 project,
1273 blink_manager: blink_manager.clone(),
1274 show_local_selections: true,
1275 show_scrollbars: true,
1276 mode,
1277 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1278 show_gutter: mode == EditorMode::Full,
1279 show_line_numbers: None,
1280 use_relative_line_numbers: None,
1281 show_git_diff_gutter: None,
1282 show_code_actions: None,
1283 show_runnables: None,
1284 show_wrap_guides: None,
1285 show_indent_guides,
1286 placeholder_text: None,
1287 highlight_order: 0,
1288 highlighted_rows: HashMap::default(),
1289 background_highlights: Default::default(),
1290 gutter_highlights: TreeMap::default(),
1291 scrollbar_marker_state: ScrollbarMarkerState::default(),
1292 active_indent_guides_state: ActiveIndentGuidesState::default(),
1293 nav_history: None,
1294 context_menu: RefCell::new(None),
1295 mouse_context_menu: None,
1296 completion_tasks: Default::default(),
1297 signature_help_state: SignatureHelpState::default(),
1298 auto_signature_help: None,
1299 find_all_references_task_sources: Vec::new(),
1300 next_completion_id: 0,
1301 next_inlay_id: 0,
1302 code_action_providers,
1303 available_code_actions: Default::default(),
1304 code_actions_task: Default::default(),
1305 document_highlights_task: Default::default(),
1306 linked_editing_range_task: Default::default(),
1307 pending_rename: Default::default(),
1308 searchable: true,
1309 cursor_shape: EditorSettings::get_global(cx)
1310 .cursor_shape
1311 .unwrap_or_default(),
1312 current_line_highlight: None,
1313 autoindent_mode: Some(AutoindentMode::EachLine),
1314 collapse_matches: false,
1315 workspace: None,
1316 input_enabled: true,
1317 use_modal_editing: mode == EditorMode::Full,
1318 read_only: false,
1319 use_autoclose: true,
1320 use_auto_surround: true,
1321 auto_replace_emoji_shortcode: false,
1322 leader_peer_id: None,
1323 remote_id: None,
1324 hover_state: Default::default(),
1325 hovered_link_state: Default::default(),
1326 inline_completion_provider: None,
1327 active_inline_completion: None,
1328 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1329
1330 gutter_hovered: false,
1331 pixel_position_of_newest_cursor: None,
1332 last_bounds: None,
1333 expect_bounds_change: None,
1334 gutter_dimensions: GutterDimensions::default(),
1335 style: None,
1336 show_cursor_names: false,
1337 hovered_cursors: Default::default(),
1338 next_editor_action_id: EditorActionId::default(),
1339 editor_actions: Rc::default(),
1340 show_inline_completions_override: None,
1341 enable_inline_completions: true,
1342 menu_inline_completions_policy: MenuInlineCompletionsPolicy::ByProvider,
1343 custom_context_menu: None,
1344 show_git_blame_gutter: false,
1345 show_git_blame_inline: false,
1346 show_selection_menu: None,
1347 show_git_blame_inline_delay_task: None,
1348 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1349 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1350 .session
1351 .restore_unsaved_buffers,
1352 blame: None,
1353 blame_subscription: None,
1354 tasks: Default::default(),
1355 _subscriptions: vec![
1356 cx.observe(&buffer, Self::on_buffer_changed),
1357 cx.subscribe(&buffer, Self::on_buffer_event),
1358 cx.observe(&display_map, Self::on_display_map_changed),
1359 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1360 cx.observe_global::<SettingsStore>(Self::settings_changed),
1361 cx.observe_window_activation(|editor, cx| {
1362 let active = cx.is_window_active();
1363 editor.blink_manager.update(cx, |blink_manager, cx| {
1364 if active {
1365 blink_manager.enable(cx);
1366 } else {
1367 blink_manager.disable(cx);
1368 }
1369 });
1370 }),
1371 ],
1372 tasks_update_task: None,
1373 linked_edit_ranges: Default::default(),
1374 previous_search_ranges: None,
1375 breadcrumb_header: None,
1376 focused_block: None,
1377 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1378 addons: HashMap::default(),
1379 registered_buffers: HashMap::default(),
1380 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1381 selection_mark_mode: false,
1382 toggle_fold_multiple_buffers: Task::ready(()),
1383 text_style_refinement: None,
1384 };
1385 this.tasks_update_task = Some(this.refresh_runnables(cx));
1386 this._subscriptions.extend(project_subscriptions);
1387
1388 this.end_selection(cx);
1389 this.scroll_manager.show_scrollbar(cx);
1390
1391 if mode == EditorMode::Full {
1392 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1393 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1394
1395 if this.git_blame_inline_enabled {
1396 this.git_blame_inline_enabled = true;
1397 this.start_git_blame_inline(false, cx);
1398 }
1399
1400 if let Some(buffer) = buffer.read(cx).as_singleton() {
1401 if let Some(project) = this.project.as_ref() {
1402 let lsp_store = project.read(cx).lsp_store();
1403 let handle = lsp_store.update(cx, |lsp_store, cx| {
1404 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1405 });
1406 this.registered_buffers
1407 .insert(buffer.read(cx).remote_id(), handle);
1408 }
1409 }
1410 }
1411
1412 this.report_editor_event("Editor Opened", None, cx);
1413 this
1414 }
1415
1416 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1417 self.mouse_context_menu
1418 .as_ref()
1419 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1420 }
1421
1422 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1423 let mut key_context = KeyContext::new_with_defaults();
1424 key_context.add("Editor");
1425 let mode = match self.mode {
1426 EditorMode::SingleLine { .. } => "single_line",
1427 EditorMode::AutoHeight { .. } => "auto_height",
1428 EditorMode::Full => "full",
1429 };
1430
1431 if EditorSettings::jupyter_enabled(cx) {
1432 key_context.add("jupyter");
1433 }
1434
1435 key_context.set("mode", mode);
1436 if self.pending_rename.is_some() {
1437 key_context.add("renaming");
1438 }
1439 match self.context_menu.borrow().as_ref() {
1440 Some(CodeContextMenu::Completions(_)) => {
1441 key_context.add("menu");
1442 key_context.add("showing_completions")
1443 }
1444 Some(CodeContextMenu::CodeActions(_)) => {
1445 key_context.add("menu");
1446 key_context.add("showing_code_actions")
1447 }
1448 None => {}
1449 }
1450
1451 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1452 if !self.focus_handle(cx).contains_focused(cx)
1453 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
1454 {
1455 for addon in self.addons.values() {
1456 addon.extend_key_context(&mut key_context, cx)
1457 }
1458 }
1459
1460 if let Some(extension) = self
1461 .buffer
1462 .read(cx)
1463 .as_singleton()
1464 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1465 {
1466 key_context.set("extension", extension.to_string());
1467 }
1468
1469 if self.has_active_inline_completion() {
1470 key_context.add("copilot_suggestion");
1471 key_context.add("inline_completion");
1472 }
1473
1474 if self.selection_mark_mode {
1475 key_context.add("selection_mode");
1476 }
1477
1478 key_context
1479 }
1480
1481 pub fn new_file(
1482 workspace: &mut Workspace,
1483 _: &workspace::NewFile,
1484 cx: &mut ViewContext<Workspace>,
1485 ) {
1486 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1487 "Failed to create buffer",
1488 cx,
1489 |e, _| match e.error_code() {
1490 ErrorCode::RemoteUpgradeRequired => Some(format!(
1491 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1492 e.error_tag("required").unwrap_or("the latest version")
1493 )),
1494 _ => None,
1495 },
1496 );
1497 }
1498
1499 pub fn new_in_workspace(
1500 workspace: &mut Workspace,
1501 cx: &mut ViewContext<Workspace>,
1502 ) -> Task<Result<View<Editor>>> {
1503 let project = workspace.project().clone();
1504 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1505
1506 cx.spawn(|workspace, mut cx| async move {
1507 let buffer = create.await?;
1508 workspace.update(&mut cx, |workspace, cx| {
1509 let editor =
1510 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
1511 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
1512 editor
1513 })
1514 })
1515 }
1516
1517 fn new_file_vertical(
1518 workspace: &mut Workspace,
1519 _: &workspace::NewFileSplitVertical,
1520 cx: &mut ViewContext<Workspace>,
1521 ) {
1522 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
1523 }
1524
1525 fn new_file_horizontal(
1526 workspace: &mut Workspace,
1527 _: &workspace::NewFileSplitHorizontal,
1528 cx: &mut ViewContext<Workspace>,
1529 ) {
1530 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
1531 }
1532
1533 fn new_file_in_direction(
1534 workspace: &mut Workspace,
1535 direction: SplitDirection,
1536 cx: &mut ViewContext<Workspace>,
1537 ) {
1538 let project = workspace.project().clone();
1539 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1540
1541 cx.spawn(|workspace, mut cx| async move {
1542 let buffer = create.await?;
1543 workspace.update(&mut cx, move |workspace, cx| {
1544 workspace.split_item(
1545 direction,
1546 Box::new(
1547 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1548 ),
1549 cx,
1550 )
1551 })?;
1552 anyhow::Ok(())
1553 })
1554 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1555 ErrorCode::RemoteUpgradeRequired => Some(format!(
1556 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1557 e.error_tag("required").unwrap_or("the latest version")
1558 )),
1559 _ => None,
1560 });
1561 }
1562
1563 pub fn leader_peer_id(&self) -> Option<PeerId> {
1564 self.leader_peer_id
1565 }
1566
1567 pub fn buffer(&self) -> &Model<MultiBuffer> {
1568 &self.buffer
1569 }
1570
1571 pub fn workspace(&self) -> Option<View<Workspace>> {
1572 self.workspace.as_ref()?.0.upgrade()
1573 }
1574
1575 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1576 self.buffer().read(cx).title(cx)
1577 }
1578
1579 pub fn snapshot(&self, cx: &mut WindowContext) -> EditorSnapshot {
1580 let git_blame_gutter_max_author_length = self
1581 .render_git_blame_gutter(cx)
1582 .then(|| {
1583 if let Some(blame) = self.blame.as_ref() {
1584 let max_author_length =
1585 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1586 Some(max_author_length)
1587 } else {
1588 None
1589 }
1590 })
1591 .flatten();
1592
1593 EditorSnapshot {
1594 mode: self.mode,
1595 show_gutter: self.show_gutter,
1596 show_line_numbers: self.show_line_numbers,
1597 show_git_diff_gutter: self.show_git_diff_gutter,
1598 show_code_actions: self.show_code_actions,
1599 show_runnables: self.show_runnables,
1600 git_blame_gutter_max_author_length,
1601 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1602 scroll_anchor: self.scroll_manager.anchor(),
1603 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1604 placeholder_text: self.placeholder_text.clone(),
1605 is_focused: self.focus_handle.is_focused(cx),
1606 current_line_highlight: self
1607 .current_line_highlight
1608 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1609 gutter_hovered: self.gutter_hovered,
1610 }
1611 }
1612
1613 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1614 self.buffer.read(cx).language_at(point, cx)
1615 }
1616
1617 pub fn file_at<T: ToOffset>(
1618 &self,
1619 point: T,
1620 cx: &AppContext,
1621 ) -> Option<Arc<dyn language::File>> {
1622 self.buffer.read(cx).read(cx).file_at(point).cloned()
1623 }
1624
1625 pub fn active_excerpt(
1626 &self,
1627 cx: &AppContext,
1628 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1629 self.buffer
1630 .read(cx)
1631 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1632 }
1633
1634 pub fn mode(&self) -> EditorMode {
1635 self.mode
1636 }
1637
1638 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1639 self.collaboration_hub.as_deref()
1640 }
1641
1642 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1643 self.collaboration_hub = Some(hub);
1644 }
1645
1646 pub fn set_custom_context_menu(
1647 &mut self,
1648 f: impl 'static
1649 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1650 ) {
1651 self.custom_context_menu = Some(Box::new(f))
1652 }
1653
1654 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1655 self.completion_provider = provider;
1656 }
1657
1658 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1659 self.semantics_provider.clone()
1660 }
1661
1662 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1663 self.semantics_provider = provider;
1664 }
1665
1666 pub fn set_inline_completion_provider<T>(
1667 &mut self,
1668 provider: Option<Model<T>>,
1669 cx: &mut ViewContext<Self>,
1670 ) where
1671 T: InlineCompletionProvider,
1672 {
1673 self.inline_completion_provider =
1674 provider.map(|provider| RegisteredInlineCompletionProvider {
1675 _subscription: cx.observe(&provider, |this, _, cx| {
1676 if this.focus_handle.is_focused(cx) {
1677 this.update_visible_inline_completion(cx);
1678 }
1679 }),
1680 provider: Arc::new(provider),
1681 });
1682 self.refresh_inline_completion(false, false, cx);
1683 }
1684
1685 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
1686 self.placeholder_text.as_deref()
1687 }
1688
1689 pub fn set_placeholder_text(
1690 &mut self,
1691 placeholder_text: impl Into<Arc<str>>,
1692 cx: &mut ViewContext<Self>,
1693 ) {
1694 let placeholder_text = Some(placeholder_text.into());
1695 if self.placeholder_text != placeholder_text {
1696 self.placeholder_text = placeholder_text;
1697 cx.notify();
1698 }
1699 }
1700
1701 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1702 self.cursor_shape = cursor_shape;
1703
1704 // Disrupt blink for immediate user feedback that the cursor shape has changed
1705 self.blink_manager.update(cx, BlinkManager::show_cursor);
1706
1707 cx.notify();
1708 }
1709
1710 pub fn set_current_line_highlight(
1711 &mut self,
1712 current_line_highlight: Option<CurrentLineHighlight>,
1713 ) {
1714 self.current_line_highlight = current_line_highlight;
1715 }
1716
1717 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1718 self.collapse_matches = collapse_matches;
1719 }
1720
1721 pub fn register_buffers_with_language_servers(&mut self, cx: &mut ViewContext<Self>) {
1722 let buffers = self.buffer.read(cx).all_buffers();
1723 let Some(lsp_store) = self.lsp_store(cx) else {
1724 return;
1725 };
1726 lsp_store.update(cx, |lsp_store, cx| {
1727 for buffer in buffers {
1728 self.registered_buffers
1729 .entry(buffer.read(cx).remote_id())
1730 .or_insert_with(|| {
1731 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1732 });
1733 }
1734 })
1735 }
1736
1737 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1738 if self.collapse_matches {
1739 return range.start..range.start;
1740 }
1741 range.clone()
1742 }
1743
1744 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1745 if self.display_map.read(cx).clip_at_line_ends != clip {
1746 self.display_map
1747 .update(cx, |map, _| map.clip_at_line_ends = clip);
1748 }
1749 }
1750
1751 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1752 self.input_enabled = input_enabled;
1753 }
1754
1755 pub fn set_inline_completions_enabled(&mut self, enabled: bool, cx: &mut ViewContext<Self>) {
1756 self.enable_inline_completions = enabled;
1757 if !self.enable_inline_completions {
1758 self.take_active_inline_completion(cx);
1759 cx.notify();
1760 }
1761 }
1762
1763 pub fn set_menu_inline_completions_policy(&mut self, value: MenuInlineCompletionsPolicy) {
1764 self.menu_inline_completions_policy = value;
1765 }
1766
1767 pub fn set_autoindent(&mut self, autoindent: bool) {
1768 if autoindent {
1769 self.autoindent_mode = Some(AutoindentMode::EachLine);
1770 } else {
1771 self.autoindent_mode = None;
1772 }
1773 }
1774
1775 pub fn read_only(&self, cx: &AppContext) -> bool {
1776 self.read_only || self.buffer.read(cx).read_only()
1777 }
1778
1779 pub fn set_read_only(&mut self, read_only: bool) {
1780 self.read_only = read_only;
1781 }
1782
1783 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1784 self.use_autoclose = autoclose;
1785 }
1786
1787 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1788 self.use_auto_surround = auto_surround;
1789 }
1790
1791 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1792 self.auto_replace_emoji_shortcode = auto_replace;
1793 }
1794
1795 pub fn toggle_inline_completions(
1796 &mut self,
1797 _: &ToggleInlineCompletions,
1798 cx: &mut ViewContext<Self>,
1799 ) {
1800 if self.show_inline_completions_override.is_some() {
1801 self.set_show_inline_completions(None, cx);
1802 } else {
1803 let cursor = self.selections.newest_anchor().head();
1804 if let Some((buffer, cursor_buffer_position)) =
1805 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1806 {
1807 let show_inline_completions =
1808 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
1809 self.set_show_inline_completions(Some(show_inline_completions), cx);
1810 }
1811 }
1812 }
1813
1814 pub fn set_show_inline_completions(
1815 &mut self,
1816 show_inline_completions: Option<bool>,
1817 cx: &mut ViewContext<Self>,
1818 ) {
1819 self.show_inline_completions_override = show_inline_completions;
1820 self.refresh_inline_completion(false, true, cx);
1821 }
1822
1823 pub fn inline_completions_enabled(&self, cx: &AppContext) -> bool {
1824 let cursor = self.selections.newest_anchor().head();
1825 if let Some((buffer, buffer_position)) =
1826 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1827 {
1828 self.should_show_inline_completions(&buffer, buffer_position, cx)
1829 } else {
1830 false
1831 }
1832 }
1833
1834 fn should_show_inline_completions(
1835 &self,
1836 buffer: &Model<Buffer>,
1837 buffer_position: language::Anchor,
1838 cx: &AppContext,
1839 ) -> bool {
1840 if !self.snippet_stack.is_empty() {
1841 return false;
1842 }
1843
1844 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1845 return false;
1846 }
1847
1848 if let Some(provider) = self.inline_completion_provider() {
1849 if let Some(show_inline_completions) = self.show_inline_completions_override {
1850 show_inline_completions
1851 } else {
1852 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1853 }
1854 } else {
1855 false
1856 }
1857 }
1858
1859 fn inline_completions_disabled_in_scope(
1860 &self,
1861 buffer: &Model<Buffer>,
1862 buffer_position: language::Anchor,
1863 cx: &AppContext,
1864 ) -> bool {
1865 let snapshot = buffer.read(cx).snapshot();
1866 let settings = snapshot.settings_at(buffer_position, cx);
1867
1868 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1869 return false;
1870 };
1871
1872 scope.override_name().map_or(false, |scope_name| {
1873 settings
1874 .inline_completions_disabled_in
1875 .iter()
1876 .any(|s| s == scope_name)
1877 })
1878 }
1879
1880 pub fn set_use_modal_editing(&mut self, to: bool) {
1881 self.use_modal_editing = to;
1882 }
1883
1884 pub fn use_modal_editing(&self) -> bool {
1885 self.use_modal_editing
1886 }
1887
1888 fn selections_did_change(
1889 &mut self,
1890 local: bool,
1891 old_cursor_position: &Anchor,
1892 show_completions: bool,
1893 cx: &mut ViewContext<Self>,
1894 ) {
1895 cx.invalidate_character_coordinates();
1896
1897 // Copy selections to primary selection buffer
1898 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1899 if local {
1900 let selections = self.selections.all::<usize>(cx);
1901 let buffer_handle = self.buffer.read(cx).read(cx);
1902
1903 let mut text = String::new();
1904 for (index, selection) in selections.iter().enumerate() {
1905 let text_for_selection = buffer_handle
1906 .text_for_range(selection.start..selection.end)
1907 .collect::<String>();
1908
1909 text.push_str(&text_for_selection);
1910 if index != selections.len() - 1 {
1911 text.push('\n');
1912 }
1913 }
1914
1915 if !text.is_empty() {
1916 cx.write_to_primary(ClipboardItem::new_string(text));
1917 }
1918 }
1919
1920 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1921 self.buffer.update(cx, |buffer, cx| {
1922 buffer.set_active_selections(
1923 &self.selections.disjoint_anchors(),
1924 self.selections.line_mode,
1925 self.cursor_shape,
1926 cx,
1927 )
1928 });
1929 }
1930 let display_map = self
1931 .display_map
1932 .update(cx, |display_map, cx| display_map.snapshot(cx));
1933 let buffer = &display_map.buffer_snapshot;
1934 self.add_selections_state = None;
1935 self.select_next_state = None;
1936 self.select_prev_state = None;
1937 self.select_larger_syntax_node_stack.clear();
1938 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1939 self.snippet_stack
1940 .invalidate(&self.selections.disjoint_anchors(), buffer);
1941 self.take_rename(false, cx);
1942
1943 let new_cursor_position = self.selections.newest_anchor().head();
1944
1945 self.push_to_nav_history(
1946 *old_cursor_position,
1947 Some(new_cursor_position.to_point(buffer)),
1948 cx,
1949 );
1950
1951 if local {
1952 let new_cursor_position = self.selections.newest_anchor().head();
1953 let mut context_menu = self.context_menu.borrow_mut();
1954 let completion_menu = match context_menu.as_ref() {
1955 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1956 _ => {
1957 *context_menu = None;
1958 None
1959 }
1960 };
1961
1962 if let Some(completion_menu) = completion_menu {
1963 let cursor_position = new_cursor_position.to_offset(buffer);
1964 let (word_range, kind) =
1965 buffer.surrounding_word(completion_menu.initial_position, true);
1966 if kind == Some(CharKind::Word)
1967 && word_range.to_inclusive().contains(&cursor_position)
1968 {
1969 let mut completion_menu = completion_menu.clone();
1970 drop(context_menu);
1971
1972 let query = Self::completion_query(buffer, cursor_position);
1973 cx.spawn(move |this, mut cx| async move {
1974 completion_menu
1975 .filter(query.as_deref(), cx.background_executor().clone())
1976 .await;
1977
1978 this.update(&mut cx, |this, cx| {
1979 let mut context_menu = this.context_menu.borrow_mut();
1980 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1981 else {
1982 return;
1983 };
1984
1985 if menu.id > completion_menu.id {
1986 return;
1987 }
1988
1989 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1990 drop(context_menu);
1991 cx.notify();
1992 })
1993 })
1994 .detach();
1995
1996 if show_completions {
1997 self.show_completions(&ShowCompletions { trigger: None }, cx);
1998 }
1999 } else {
2000 drop(context_menu);
2001 self.hide_context_menu(cx);
2002 }
2003 } else {
2004 drop(context_menu);
2005 }
2006
2007 hide_hover(self, cx);
2008
2009 if old_cursor_position.to_display_point(&display_map).row()
2010 != new_cursor_position.to_display_point(&display_map).row()
2011 {
2012 self.available_code_actions.take();
2013 }
2014 self.refresh_code_actions(cx);
2015 self.refresh_document_highlights(cx);
2016 refresh_matching_bracket_highlights(self, cx);
2017 self.update_visible_inline_completion(cx);
2018 linked_editing_ranges::refresh_linked_ranges(self, cx);
2019 if self.git_blame_inline_enabled {
2020 self.start_inline_blame_timer(cx);
2021 }
2022 }
2023
2024 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2025 cx.emit(EditorEvent::SelectionsChanged { local });
2026
2027 if self.selections.disjoint_anchors().len() == 1 {
2028 cx.emit(SearchEvent::ActiveMatchChanged)
2029 }
2030 cx.notify();
2031 }
2032
2033 pub fn change_selections<R>(
2034 &mut self,
2035 autoscroll: Option<Autoscroll>,
2036 cx: &mut ViewContext<Self>,
2037 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2038 ) -> R {
2039 self.change_selections_inner(autoscroll, true, cx, change)
2040 }
2041
2042 pub fn change_selections_inner<R>(
2043 &mut self,
2044 autoscroll: Option<Autoscroll>,
2045 request_completions: bool,
2046 cx: &mut ViewContext<Self>,
2047 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2048 ) -> R {
2049 let old_cursor_position = self.selections.newest_anchor().head();
2050 self.push_to_selection_history();
2051
2052 let (changed, result) = self.selections.change_with(cx, change);
2053
2054 if changed {
2055 if let Some(autoscroll) = autoscroll {
2056 self.request_autoscroll(autoscroll, cx);
2057 }
2058 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2059
2060 if self.should_open_signature_help_automatically(
2061 &old_cursor_position,
2062 self.signature_help_state.backspace_pressed(),
2063 cx,
2064 ) {
2065 self.show_signature_help(&ShowSignatureHelp, cx);
2066 }
2067 self.signature_help_state.set_backspace_pressed(false);
2068 }
2069
2070 result
2071 }
2072
2073 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2074 where
2075 I: IntoIterator<Item = (Range<S>, T)>,
2076 S: ToOffset,
2077 T: Into<Arc<str>>,
2078 {
2079 if self.read_only(cx) {
2080 return;
2081 }
2082
2083 self.buffer
2084 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2085 }
2086
2087 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2088 where
2089 I: IntoIterator<Item = (Range<S>, T)>,
2090 S: ToOffset,
2091 T: Into<Arc<str>>,
2092 {
2093 if self.read_only(cx) {
2094 return;
2095 }
2096
2097 self.buffer.update(cx, |buffer, cx| {
2098 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2099 });
2100 }
2101
2102 pub fn edit_with_block_indent<I, S, T>(
2103 &mut self,
2104 edits: I,
2105 original_indent_columns: Vec<u32>,
2106 cx: &mut ViewContext<Self>,
2107 ) where
2108 I: IntoIterator<Item = (Range<S>, T)>,
2109 S: ToOffset,
2110 T: Into<Arc<str>>,
2111 {
2112 if self.read_only(cx) {
2113 return;
2114 }
2115
2116 self.buffer.update(cx, |buffer, cx| {
2117 buffer.edit(
2118 edits,
2119 Some(AutoindentMode::Block {
2120 original_indent_columns,
2121 }),
2122 cx,
2123 )
2124 });
2125 }
2126
2127 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2128 self.hide_context_menu(cx);
2129
2130 match phase {
2131 SelectPhase::Begin {
2132 position,
2133 add,
2134 click_count,
2135 } => self.begin_selection(position, add, click_count, cx),
2136 SelectPhase::BeginColumnar {
2137 position,
2138 goal_column,
2139 reset,
2140 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2141 SelectPhase::Extend {
2142 position,
2143 click_count,
2144 } => self.extend_selection(position, click_count, cx),
2145 SelectPhase::Update {
2146 position,
2147 goal_column,
2148 scroll_delta,
2149 } => self.update_selection(position, goal_column, scroll_delta, cx),
2150 SelectPhase::End => self.end_selection(cx),
2151 }
2152 }
2153
2154 fn extend_selection(
2155 &mut self,
2156 position: DisplayPoint,
2157 click_count: usize,
2158 cx: &mut ViewContext<Self>,
2159 ) {
2160 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2161 let tail = self.selections.newest::<usize>(cx).tail();
2162 self.begin_selection(position, false, click_count, cx);
2163
2164 let position = position.to_offset(&display_map, Bias::Left);
2165 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2166
2167 let mut pending_selection = self
2168 .selections
2169 .pending_anchor()
2170 .expect("extend_selection not called with pending selection");
2171 if position >= tail {
2172 pending_selection.start = tail_anchor;
2173 } else {
2174 pending_selection.end = tail_anchor;
2175 pending_selection.reversed = true;
2176 }
2177
2178 let mut pending_mode = self.selections.pending_mode().unwrap();
2179 match &mut pending_mode {
2180 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2181 _ => {}
2182 }
2183
2184 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2185 s.set_pending(pending_selection, pending_mode)
2186 });
2187 }
2188
2189 fn begin_selection(
2190 &mut self,
2191 position: DisplayPoint,
2192 add: bool,
2193 click_count: usize,
2194 cx: &mut ViewContext<Self>,
2195 ) {
2196 if !self.focus_handle.is_focused(cx) {
2197 self.last_focused_descendant = None;
2198 cx.focus(&self.focus_handle);
2199 }
2200
2201 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2202 let buffer = &display_map.buffer_snapshot;
2203 let newest_selection = self.selections.newest_anchor().clone();
2204 let position = display_map.clip_point(position, Bias::Left);
2205
2206 let start;
2207 let end;
2208 let mode;
2209 let mut auto_scroll;
2210 match click_count {
2211 1 => {
2212 start = buffer.anchor_before(position.to_point(&display_map));
2213 end = start;
2214 mode = SelectMode::Character;
2215 auto_scroll = true;
2216 }
2217 2 => {
2218 let range = movement::surrounding_word(&display_map, position);
2219 start = buffer.anchor_before(range.start.to_point(&display_map));
2220 end = buffer.anchor_before(range.end.to_point(&display_map));
2221 mode = SelectMode::Word(start..end);
2222 auto_scroll = true;
2223 }
2224 3 => {
2225 let position = display_map
2226 .clip_point(position, Bias::Left)
2227 .to_point(&display_map);
2228 let line_start = display_map.prev_line_boundary(position).0;
2229 let next_line_start = buffer.clip_point(
2230 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2231 Bias::Left,
2232 );
2233 start = buffer.anchor_before(line_start);
2234 end = buffer.anchor_before(next_line_start);
2235 mode = SelectMode::Line(start..end);
2236 auto_scroll = true;
2237 }
2238 _ => {
2239 start = buffer.anchor_before(0);
2240 end = buffer.anchor_before(buffer.len());
2241 mode = SelectMode::All;
2242 auto_scroll = false;
2243 }
2244 }
2245 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2246
2247 let point_to_delete: Option<usize> = {
2248 let selected_points: Vec<Selection<Point>> =
2249 self.selections.disjoint_in_range(start..end, cx);
2250
2251 if !add || click_count > 1 {
2252 None
2253 } else if !selected_points.is_empty() {
2254 Some(selected_points[0].id)
2255 } else {
2256 let clicked_point_already_selected =
2257 self.selections.disjoint.iter().find(|selection| {
2258 selection.start.to_point(buffer) == start.to_point(buffer)
2259 || selection.end.to_point(buffer) == end.to_point(buffer)
2260 });
2261
2262 clicked_point_already_selected.map(|selection| selection.id)
2263 }
2264 };
2265
2266 let selections_count = self.selections.count();
2267
2268 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2269 if let Some(point_to_delete) = point_to_delete {
2270 s.delete(point_to_delete);
2271
2272 if selections_count == 1 {
2273 s.set_pending_anchor_range(start..end, mode);
2274 }
2275 } else {
2276 if !add {
2277 s.clear_disjoint();
2278 } else if click_count > 1 {
2279 s.delete(newest_selection.id)
2280 }
2281
2282 s.set_pending_anchor_range(start..end, mode);
2283 }
2284 });
2285 }
2286
2287 fn begin_columnar_selection(
2288 &mut self,
2289 position: DisplayPoint,
2290 goal_column: u32,
2291 reset: bool,
2292 cx: &mut ViewContext<Self>,
2293 ) {
2294 if !self.focus_handle.is_focused(cx) {
2295 self.last_focused_descendant = None;
2296 cx.focus(&self.focus_handle);
2297 }
2298
2299 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2300
2301 if reset {
2302 let pointer_position = display_map
2303 .buffer_snapshot
2304 .anchor_before(position.to_point(&display_map));
2305
2306 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2307 s.clear_disjoint();
2308 s.set_pending_anchor_range(
2309 pointer_position..pointer_position,
2310 SelectMode::Character,
2311 );
2312 });
2313 }
2314
2315 let tail = self.selections.newest::<Point>(cx).tail();
2316 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2317
2318 if !reset {
2319 self.select_columns(
2320 tail.to_display_point(&display_map),
2321 position,
2322 goal_column,
2323 &display_map,
2324 cx,
2325 );
2326 }
2327 }
2328
2329 fn update_selection(
2330 &mut self,
2331 position: DisplayPoint,
2332 goal_column: u32,
2333 scroll_delta: gpui::Point<f32>,
2334 cx: &mut ViewContext<Self>,
2335 ) {
2336 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2337
2338 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2339 let tail = tail.to_display_point(&display_map);
2340 self.select_columns(tail, position, goal_column, &display_map, cx);
2341 } else if let Some(mut pending) = self.selections.pending_anchor() {
2342 let buffer = self.buffer.read(cx).snapshot(cx);
2343 let head;
2344 let tail;
2345 let mode = self.selections.pending_mode().unwrap();
2346 match &mode {
2347 SelectMode::Character => {
2348 head = position.to_point(&display_map);
2349 tail = pending.tail().to_point(&buffer);
2350 }
2351 SelectMode::Word(original_range) => {
2352 let original_display_range = original_range.start.to_display_point(&display_map)
2353 ..original_range.end.to_display_point(&display_map);
2354 let original_buffer_range = original_display_range.start.to_point(&display_map)
2355 ..original_display_range.end.to_point(&display_map);
2356 if movement::is_inside_word(&display_map, position)
2357 || original_display_range.contains(&position)
2358 {
2359 let word_range = movement::surrounding_word(&display_map, position);
2360 if word_range.start < original_display_range.start {
2361 head = word_range.start.to_point(&display_map);
2362 } else {
2363 head = word_range.end.to_point(&display_map);
2364 }
2365 } else {
2366 head = position.to_point(&display_map);
2367 }
2368
2369 if head <= original_buffer_range.start {
2370 tail = original_buffer_range.end;
2371 } else {
2372 tail = original_buffer_range.start;
2373 }
2374 }
2375 SelectMode::Line(original_range) => {
2376 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2377
2378 let position = display_map
2379 .clip_point(position, Bias::Left)
2380 .to_point(&display_map);
2381 let line_start = display_map.prev_line_boundary(position).0;
2382 let next_line_start = buffer.clip_point(
2383 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2384 Bias::Left,
2385 );
2386
2387 if line_start < original_range.start {
2388 head = line_start
2389 } else {
2390 head = next_line_start
2391 }
2392
2393 if head <= original_range.start {
2394 tail = original_range.end;
2395 } else {
2396 tail = original_range.start;
2397 }
2398 }
2399 SelectMode::All => {
2400 return;
2401 }
2402 };
2403
2404 if head < tail {
2405 pending.start = buffer.anchor_before(head);
2406 pending.end = buffer.anchor_before(tail);
2407 pending.reversed = true;
2408 } else {
2409 pending.start = buffer.anchor_before(tail);
2410 pending.end = buffer.anchor_before(head);
2411 pending.reversed = false;
2412 }
2413
2414 self.change_selections(None, cx, |s| {
2415 s.set_pending(pending, mode);
2416 });
2417 } else {
2418 log::error!("update_selection dispatched with no pending selection");
2419 return;
2420 }
2421
2422 self.apply_scroll_delta(scroll_delta, cx);
2423 cx.notify();
2424 }
2425
2426 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2427 self.columnar_selection_tail.take();
2428 if self.selections.pending_anchor().is_some() {
2429 let selections = self.selections.all::<usize>(cx);
2430 self.change_selections(None, cx, |s| {
2431 s.select(selections);
2432 s.clear_pending();
2433 });
2434 }
2435 }
2436
2437 fn select_columns(
2438 &mut self,
2439 tail: DisplayPoint,
2440 head: DisplayPoint,
2441 goal_column: u32,
2442 display_map: &DisplaySnapshot,
2443 cx: &mut ViewContext<Self>,
2444 ) {
2445 let start_row = cmp::min(tail.row(), head.row());
2446 let end_row = cmp::max(tail.row(), head.row());
2447 let start_column = cmp::min(tail.column(), goal_column);
2448 let end_column = cmp::max(tail.column(), goal_column);
2449 let reversed = start_column < tail.column();
2450
2451 let selection_ranges = (start_row.0..=end_row.0)
2452 .map(DisplayRow)
2453 .filter_map(|row| {
2454 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2455 let start = display_map
2456 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2457 .to_point(display_map);
2458 let end = display_map
2459 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2460 .to_point(display_map);
2461 if reversed {
2462 Some(end..start)
2463 } else {
2464 Some(start..end)
2465 }
2466 } else {
2467 None
2468 }
2469 })
2470 .collect::<Vec<_>>();
2471
2472 self.change_selections(None, cx, |s| {
2473 s.select_ranges(selection_ranges);
2474 });
2475 cx.notify();
2476 }
2477
2478 pub fn has_pending_nonempty_selection(&self) -> bool {
2479 let pending_nonempty_selection = match self.selections.pending_anchor() {
2480 Some(Selection { start, end, .. }) => start != end,
2481 None => false,
2482 };
2483
2484 pending_nonempty_selection
2485 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2486 }
2487
2488 pub fn has_pending_selection(&self) -> bool {
2489 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2490 }
2491
2492 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2493 self.selection_mark_mode = false;
2494
2495 if self.clear_expanded_diff_hunks(cx) {
2496 cx.notify();
2497 return;
2498 }
2499 if self.dismiss_menus_and_popups(true, cx) {
2500 return;
2501 }
2502
2503 if self.mode == EditorMode::Full
2504 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2505 {
2506 return;
2507 }
2508
2509 cx.propagate();
2510 }
2511
2512 pub fn dismiss_menus_and_popups(
2513 &mut self,
2514 should_report_inline_completion_event: bool,
2515 cx: &mut ViewContext<Self>,
2516 ) -> bool {
2517 if self.take_rename(false, cx).is_some() {
2518 return true;
2519 }
2520
2521 if hide_hover(self, cx) {
2522 return true;
2523 }
2524
2525 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2526 return true;
2527 }
2528
2529 if self.hide_context_menu(cx).is_some() {
2530 if self.show_inline_completions_in_menu(cx) && self.has_active_inline_completion() {
2531 self.update_visible_inline_completion(cx);
2532 }
2533 return true;
2534 }
2535
2536 if self.mouse_context_menu.take().is_some() {
2537 return true;
2538 }
2539
2540 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2541 return true;
2542 }
2543
2544 if self.snippet_stack.pop().is_some() {
2545 return true;
2546 }
2547
2548 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2549 self.dismiss_diagnostics(cx);
2550 return true;
2551 }
2552
2553 false
2554 }
2555
2556 fn linked_editing_ranges_for(
2557 &self,
2558 selection: Range<text::Anchor>,
2559 cx: &AppContext,
2560 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2561 if self.linked_edit_ranges.is_empty() {
2562 return None;
2563 }
2564 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2565 selection.end.buffer_id.and_then(|end_buffer_id| {
2566 if selection.start.buffer_id != Some(end_buffer_id) {
2567 return None;
2568 }
2569 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2570 let snapshot = buffer.read(cx).snapshot();
2571 self.linked_edit_ranges
2572 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2573 .map(|ranges| (ranges, snapshot, buffer))
2574 })?;
2575 use text::ToOffset as TO;
2576 // find offset from the start of current range to current cursor position
2577 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2578
2579 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2580 let start_difference = start_offset - start_byte_offset;
2581 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2582 let end_difference = end_offset - start_byte_offset;
2583 // Current range has associated linked ranges.
2584 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2585 for range in linked_ranges.iter() {
2586 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2587 let end_offset = start_offset + end_difference;
2588 let start_offset = start_offset + start_difference;
2589 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2590 continue;
2591 }
2592 if self.selections.disjoint_anchor_ranges().any(|s| {
2593 if s.start.buffer_id != selection.start.buffer_id
2594 || s.end.buffer_id != selection.end.buffer_id
2595 {
2596 return false;
2597 }
2598 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2599 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2600 }) {
2601 continue;
2602 }
2603 let start = buffer_snapshot.anchor_after(start_offset);
2604 let end = buffer_snapshot.anchor_after(end_offset);
2605 linked_edits
2606 .entry(buffer.clone())
2607 .or_default()
2608 .push(start..end);
2609 }
2610 Some(linked_edits)
2611 }
2612
2613 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2614 let text: Arc<str> = text.into();
2615
2616 if self.read_only(cx) {
2617 return;
2618 }
2619
2620 let selections = self.selections.all_adjusted(cx);
2621 let mut bracket_inserted = false;
2622 let mut edits = Vec::new();
2623 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2624 let mut new_selections = Vec::with_capacity(selections.len());
2625 let mut new_autoclose_regions = Vec::new();
2626 let snapshot = self.buffer.read(cx).read(cx);
2627
2628 for (selection, autoclose_region) in
2629 self.selections_with_autoclose_regions(selections, &snapshot)
2630 {
2631 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2632 // Determine if the inserted text matches the opening or closing
2633 // bracket of any of this language's bracket pairs.
2634 let mut bracket_pair = None;
2635 let mut is_bracket_pair_start = false;
2636 let mut is_bracket_pair_end = false;
2637 if !text.is_empty() {
2638 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2639 // and they are removing the character that triggered IME popup.
2640 for (pair, enabled) in scope.brackets() {
2641 if !pair.close && !pair.surround {
2642 continue;
2643 }
2644
2645 if enabled && pair.start.ends_with(text.as_ref()) {
2646 let prefix_len = pair.start.len() - text.len();
2647 let preceding_text_matches_prefix = prefix_len == 0
2648 || (selection.start.column >= (prefix_len as u32)
2649 && snapshot.contains_str_at(
2650 Point::new(
2651 selection.start.row,
2652 selection.start.column - (prefix_len as u32),
2653 ),
2654 &pair.start[..prefix_len],
2655 ));
2656 if preceding_text_matches_prefix {
2657 bracket_pair = Some(pair.clone());
2658 is_bracket_pair_start = true;
2659 break;
2660 }
2661 }
2662 if pair.end.as_str() == text.as_ref() {
2663 bracket_pair = Some(pair.clone());
2664 is_bracket_pair_end = true;
2665 break;
2666 }
2667 }
2668 }
2669
2670 if let Some(bracket_pair) = bracket_pair {
2671 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2672 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2673 let auto_surround =
2674 self.use_auto_surround && snapshot_settings.use_auto_surround;
2675 if selection.is_empty() {
2676 if is_bracket_pair_start {
2677 // If the inserted text is a suffix of an opening bracket and the
2678 // selection is preceded by the rest of the opening bracket, then
2679 // insert the closing bracket.
2680 let following_text_allows_autoclose = snapshot
2681 .chars_at(selection.start)
2682 .next()
2683 .map_or(true, |c| scope.should_autoclose_before(c));
2684
2685 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2686 && bracket_pair.start.len() == 1
2687 {
2688 let target = bracket_pair.start.chars().next().unwrap();
2689 let current_line_count = snapshot
2690 .reversed_chars_at(selection.start)
2691 .take_while(|&c| c != '\n')
2692 .filter(|&c| c == target)
2693 .count();
2694 current_line_count % 2 == 1
2695 } else {
2696 false
2697 };
2698
2699 if autoclose
2700 && bracket_pair.close
2701 && following_text_allows_autoclose
2702 && !is_closing_quote
2703 {
2704 let anchor = snapshot.anchor_before(selection.end);
2705 new_selections.push((selection.map(|_| anchor), text.len()));
2706 new_autoclose_regions.push((
2707 anchor,
2708 text.len(),
2709 selection.id,
2710 bracket_pair.clone(),
2711 ));
2712 edits.push((
2713 selection.range(),
2714 format!("{}{}", text, bracket_pair.end).into(),
2715 ));
2716 bracket_inserted = true;
2717 continue;
2718 }
2719 }
2720
2721 if let Some(region) = autoclose_region {
2722 // If the selection is followed by an auto-inserted closing bracket,
2723 // then don't insert that closing bracket again; just move the selection
2724 // past the closing bracket.
2725 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2726 && text.as_ref() == region.pair.end.as_str();
2727 if should_skip {
2728 let anchor = snapshot.anchor_after(selection.end);
2729 new_selections
2730 .push((selection.map(|_| anchor), region.pair.end.len()));
2731 continue;
2732 }
2733 }
2734
2735 let always_treat_brackets_as_autoclosed = snapshot
2736 .settings_at(selection.start, cx)
2737 .always_treat_brackets_as_autoclosed;
2738 if always_treat_brackets_as_autoclosed
2739 && is_bracket_pair_end
2740 && snapshot.contains_str_at(selection.end, text.as_ref())
2741 {
2742 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2743 // and the inserted text is a closing bracket and the selection is followed
2744 // by the closing bracket then move the selection past the closing bracket.
2745 let anchor = snapshot.anchor_after(selection.end);
2746 new_selections.push((selection.map(|_| anchor), text.len()));
2747 continue;
2748 }
2749 }
2750 // If an opening bracket is 1 character long and is typed while
2751 // text is selected, then surround that text with the bracket pair.
2752 else if auto_surround
2753 && bracket_pair.surround
2754 && is_bracket_pair_start
2755 && bracket_pair.start.chars().count() == 1
2756 {
2757 edits.push((selection.start..selection.start, text.clone()));
2758 edits.push((
2759 selection.end..selection.end,
2760 bracket_pair.end.as_str().into(),
2761 ));
2762 bracket_inserted = true;
2763 new_selections.push((
2764 Selection {
2765 id: selection.id,
2766 start: snapshot.anchor_after(selection.start),
2767 end: snapshot.anchor_before(selection.end),
2768 reversed: selection.reversed,
2769 goal: selection.goal,
2770 },
2771 0,
2772 ));
2773 continue;
2774 }
2775 }
2776 }
2777
2778 if self.auto_replace_emoji_shortcode
2779 && selection.is_empty()
2780 && text.as_ref().ends_with(':')
2781 {
2782 if let Some(possible_emoji_short_code) =
2783 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2784 {
2785 if !possible_emoji_short_code.is_empty() {
2786 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2787 let emoji_shortcode_start = Point::new(
2788 selection.start.row,
2789 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2790 );
2791
2792 // Remove shortcode from buffer
2793 edits.push((
2794 emoji_shortcode_start..selection.start,
2795 "".to_string().into(),
2796 ));
2797 new_selections.push((
2798 Selection {
2799 id: selection.id,
2800 start: snapshot.anchor_after(emoji_shortcode_start),
2801 end: snapshot.anchor_before(selection.start),
2802 reversed: selection.reversed,
2803 goal: selection.goal,
2804 },
2805 0,
2806 ));
2807
2808 // Insert emoji
2809 let selection_start_anchor = snapshot.anchor_after(selection.start);
2810 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2811 edits.push((selection.start..selection.end, emoji.to_string().into()));
2812
2813 continue;
2814 }
2815 }
2816 }
2817 }
2818
2819 // If not handling any auto-close operation, then just replace the selected
2820 // text with the given input and move the selection to the end of the
2821 // newly inserted text.
2822 let anchor = snapshot.anchor_after(selection.end);
2823 if !self.linked_edit_ranges.is_empty() {
2824 let start_anchor = snapshot.anchor_before(selection.start);
2825
2826 let is_word_char = text.chars().next().map_or(true, |char| {
2827 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2828 classifier.is_word(char)
2829 });
2830
2831 if is_word_char {
2832 if let Some(ranges) = self
2833 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2834 {
2835 for (buffer, edits) in ranges {
2836 linked_edits
2837 .entry(buffer.clone())
2838 .or_default()
2839 .extend(edits.into_iter().map(|range| (range, text.clone())));
2840 }
2841 }
2842 }
2843 }
2844
2845 new_selections.push((selection.map(|_| anchor), 0));
2846 edits.push((selection.start..selection.end, text.clone()));
2847 }
2848
2849 drop(snapshot);
2850
2851 self.transact(cx, |this, cx| {
2852 this.buffer.update(cx, |buffer, cx| {
2853 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2854 });
2855 for (buffer, edits) in linked_edits {
2856 buffer.update(cx, |buffer, cx| {
2857 let snapshot = buffer.snapshot();
2858 let edits = edits
2859 .into_iter()
2860 .map(|(range, text)| {
2861 use text::ToPoint as TP;
2862 let end_point = TP::to_point(&range.end, &snapshot);
2863 let start_point = TP::to_point(&range.start, &snapshot);
2864 (start_point..end_point, text)
2865 })
2866 .sorted_by_key(|(range, _)| range.start)
2867 .collect::<Vec<_>>();
2868 buffer.edit(edits, None, cx);
2869 })
2870 }
2871 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2872 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2873 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2874 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2875 .zip(new_selection_deltas)
2876 .map(|(selection, delta)| Selection {
2877 id: selection.id,
2878 start: selection.start + delta,
2879 end: selection.end + delta,
2880 reversed: selection.reversed,
2881 goal: SelectionGoal::None,
2882 })
2883 .collect::<Vec<_>>();
2884
2885 let mut i = 0;
2886 for (position, delta, selection_id, pair) in new_autoclose_regions {
2887 let position = position.to_offset(&map.buffer_snapshot) + delta;
2888 let start = map.buffer_snapshot.anchor_before(position);
2889 let end = map.buffer_snapshot.anchor_after(position);
2890 while let Some(existing_state) = this.autoclose_regions.get(i) {
2891 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2892 Ordering::Less => i += 1,
2893 Ordering::Greater => break,
2894 Ordering::Equal => {
2895 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2896 Ordering::Less => i += 1,
2897 Ordering::Equal => break,
2898 Ordering::Greater => break,
2899 }
2900 }
2901 }
2902 }
2903 this.autoclose_regions.insert(
2904 i,
2905 AutocloseRegion {
2906 selection_id,
2907 range: start..end,
2908 pair,
2909 },
2910 );
2911 }
2912
2913 let had_active_inline_completion = this.has_active_inline_completion();
2914 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2915 s.select(new_selections)
2916 });
2917
2918 if !bracket_inserted {
2919 if let Some(on_type_format_task) =
2920 this.trigger_on_type_formatting(text.to_string(), cx)
2921 {
2922 on_type_format_task.detach_and_log_err(cx);
2923 }
2924 }
2925
2926 let editor_settings = EditorSettings::get_global(cx);
2927 if bracket_inserted
2928 && (editor_settings.auto_signature_help
2929 || editor_settings.show_signature_help_after_edits)
2930 {
2931 this.show_signature_help(&ShowSignatureHelp, cx);
2932 }
2933
2934 let trigger_in_words =
2935 this.show_inline_completions_in_menu(cx) || !had_active_inline_completion;
2936 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2937 linked_editing_ranges::refresh_linked_ranges(this, cx);
2938 this.refresh_inline_completion(true, false, cx);
2939 });
2940 }
2941
2942 fn find_possible_emoji_shortcode_at_position(
2943 snapshot: &MultiBufferSnapshot,
2944 position: Point,
2945 ) -> Option<String> {
2946 let mut chars = Vec::new();
2947 let mut found_colon = false;
2948 for char in snapshot.reversed_chars_at(position).take(100) {
2949 // Found a possible emoji shortcode in the middle of the buffer
2950 if found_colon {
2951 if char.is_whitespace() {
2952 chars.reverse();
2953 return Some(chars.iter().collect());
2954 }
2955 // If the previous character is not a whitespace, we are in the middle of a word
2956 // and we only want to complete the shortcode if the word is made up of other emojis
2957 let mut containing_word = String::new();
2958 for ch in snapshot
2959 .reversed_chars_at(position)
2960 .skip(chars.len() + 1)
2961 .take(100)
2962 {
2963 if ch.is_whitespace() {
2964 break;
2965 }
2966 containing_word.push(ch);
2967 }
2968 let containing_word = containing_word.chars().rev().collect::<String>();
2969 if util::word_consists_of_emojis(containing_word.as_str()) {
2970 chars.reverse();
2971 return Some(chars.iter().collect());
2972 }
2973 }
2974
2975 if char.is_whitespace() || !char.is_ascii() {
2976 return None;
2977 }
2978 if char == ':' {
2979 found_colon = true;
2980 } else {
2981 chars.push(char);
2982 }
2983 }
2984 // Found a possible emoji shortcode at the beginning of the buffer
2985 chars.reverse();
2986 Some(chars.iter().collect())
2987 }
2988
2989 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2990 self.transact(cx, |this, cx| {
2991 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2992 let selections = this.selections.all::<usize>(cx);
2993 let multi_buffer = this.buffer.read(cx);
2994 let buffer = multi_buffer.snapshot(cx);
2995 selections
2996 .iter()
2997 .map(|selection| {
2998 let start_point = selection.start.to_point(&buffer);
2999 let mut indent =
3000 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3001 indent.len = cmp::min(indent.len, start_point.column);
3002 let start = selection.start;
3003 let end = selection.end;
3004 let selection_is_empty = start == end;
3005 let language_scope = buffer.language_scope_at(start);
3006 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3007 &language_scope
3008 {
3009 let leading_whitespace_len = buffer
3010 .reversed_chars_at(start)
3011 .take_while(|c| c.is_whitespace() && *c != '\n')
3012 .map(|c| c.len_utf8())
3013 .sum::<usize>();
3014
3015 let trailing_whitespace_len = buffer
3016 .chars_at(end)
3017 .take_while(|c| c.is_whitespace() && *c != '\n')
3018 .map(|c| c.len_utf8())
3019 .sum::<usize>();
3020
3021 let insert_extra_newline =
3022 language.brackets().any(|(pair, enabled)| {
3023 let pair_start = pair.start.trim_end();
3024 let pair_end = pair.end.trim_start();
3025
3026 enabled
3027 && pair.newline
3028 && buffer.contains_str_at(
3029 end + trailing_whitespace_len,
3030 pair_end,
3031 )
3032 && buffer.contains_str_at(
3033 (start - leading_whitespace_len)
3034 .saturating_sub(pair_start.len()),
3035 pair_start,
3036 )
3037 });
3038
3039 // Comment extension on newline is allowed only for cursor selections
3040 let comment_delimiter = maybe!({
3041 if !selection_is_empty {
3042 return None;
3043 }
3044
3045 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3046 return None;
3047 }
3048
3049 let delimiters = language.line_comment_prefixes();
3050 let max_len_of_delimiter =
3051 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3052 let (snapshot, range) =
3053 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3054
3055 let mut index_of_first_non_whitespace = 0;
3056 let comment_candidate = snapshot
3057 .chars_for_range(range)
3058 .skip_while(|c| {
3059 let should_skip = c.is_whitespace();
3060 if should_skip {
3061 index_of_first_non_whitespace += 1;
3062 }
3063 should_skip
3064 })
3065 .take(max_len_of_delimiter)
3066 .collect::<String>();
3067 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3068 comment_candidate.starts_with(comment_prefix.as_ref())
3069 })?;
3070 let cursor_is_placed_after_comment_marker =
3071 index_of_first_non_whitespace + comment_prefix.len()
3072 <= start_point.column as usize;
3073 if cursor_is_placed_after_comment_marker {
3074 Some(comment_prefix.clone())
3075 } else {
3076 None
3077 }
3078 });
3079 (comment_delimiter, insert_extra_newline)
3080 } else {
3081 (None, false)
3082 };
3083
3084 let capacity_for_delimiter = comment_delimiter
3085 .as_deref()
3086 .map(str::len)
3087 .unwrap_or_default();
3088 let mut new_text =
3089 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3090 new_text.push('\n');
3091 new_text.extend(indent.chars());
3092 if let Some(delimiter) = &comment_delimiter {
3093 new_text.push_str(delimiter);
3094 }
3095 if insert_extra_newline {
3096 new_text = new_text.repeat(2);
3097 }
3098
3099 let anchor = buffer.anchor_after(end);
3100 let new_selection = selection.map(|_| anchor);
3101 (
3102 (start..end, new_text),
3103 (insert_extra_newline, new_selection),
3104 )
3105 })
3106 .unzip()
3107 };
3108
3109 this.edit_with_autoindent(edits, cx);
3110 let buffer = this.buffer.read(cx).snapshot(cx);
3111 let new_selections = selection_fixup_info
3112 .into_iter()
3113 .map(|(extra_newline_inserted, new_selection)| {
3114 let mut cursor = new_selection.end.to_point(&buffer);
3115 if extra_newline_inserted {
3116 cursor.row -= 1;
3117 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3118 }
3119 new_selection.map(|_| cursor)
3120 })
3121 .collect();
3122
3123 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3124 this.refresh_inline_completion(true, false, cx);
3125 });
3126 }
3127
3128 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3129 let buffer = self.buffer.read(cx);
3130 let snapshot = buffer.snapshot(cx);
3131
3132 let mut edits = Vec::new();
3133 let mut rows = Vec::new();
3134
3135 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3136 let cursor = selection.head();
3137 let row = cursor.row;
3138
3139 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3140
3141 let newline = "\n".to_string();
3142 edits.push((start_of_line..start_of_line, newline));
3143
3144 rows.push(row + rows_inserted as u32);
3145 }
3146
3147 self.transact(cx, |editor, cx| {
3148 editor.edit(edits, cx);
3149
3150 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3151 let mut index = 0;
3152 s.move_cursors_with(|map, _, _| {
3153 let row = rows[index];
3154 index += 1;
3155
3156 let point = Point::new(row, 0);
3157 let boundary = map.next_line_boundary(point).1;
3158 let clipped = map.clip_point(boundary, Bias::Left);
3159
3160 (clipped, SelectionGoal::None)
3161 });
3162 });
3163
3164 let mut indent_edits = Vec::new();
3165 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3166 for row in rows {
3167 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3168 for (row, indent) in indents {
3169 if indent.len == 0 {
3170 continue;
3171 }
3172
3173 let text = match indent.kind {
3174 IndentKind::Space => " ".repeat(indent.len as usize),
3175 IndentKind::Tab => "\t".repeat(indent.len as usize),
3176 };
3177 let point = Point::new(row.0, 0);
3178 indent_edits.push((point..point, text));
3179 }
3180 }
3181 editor.edit(indent_edits, cx);
3182 });
3183 }
3184
3185 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3186 let buffer = self.buffer.read(cx);
3187 let snapshot = buffer.snapshot(cx);
3188
3189 let mut edits = Vec::new();
3190 let mut rows = Vec::new();
3191 let mut rows_inserted = 0;
3192
3193 for selection in self.selections.all_adjusted(cx) {
3194 let cursor = selection.head();
3195 let row = cursor.row;
3196
3197 let point = Point::new(row + 1, 0);
3198 let start_of_line = snapshot.clip_point(point, Bias::Left);
3199
3200 let newline = "\n".to_string();
3201 edits.push((start_of_line..start_of_line, newline));
3202
3203 rows_inserted += 1;
3204 rows.push(row + rows_inserted);
3205 }
3206
3207 self.transact(cx, |editor, cx| {
3208 editor.edit(edits, cx);
3209
3210 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3211 let mut index = 0;
3212 s.move_cursors_with(|map, _, _| {
3213 let row = rows[index];
3214 index += 1;
3215
3216 let point = Point::new(row, 0);
3217 let boundary = map.next_line_boundary(point).1;
3218 let clipped = map.clip_point(boundary, Bias::Left);
3219
3220 (clipped, SelectionGoal::None)
3221 });
3222 });
3223
3224 let mut indent_edits = Vec::new();
3225 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3226 for row in rows {
3227 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3228 for (row, indent) in indents {
3229 if indent.len == 0 {
3230 continue;
3231 }
3232
3233 let text = match indent.kind {
3234 IndentKind::Space => " ".repeat(indent.len as usize),
3235 IndentKind::Tab => "\t".repeat(indent.len as usize),
3236 };
3237 let point = Point::new(row.0, 0);
3238 indent_edits.push((point..point, text));
3239 }
3240 }
3241 editor.edit(indent_edits, cx);
3242 });
3243 }
3244
3245 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3246 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3247 original_indent_columns: Vec::new(),
3248 });
3249 self.insert_with_autoindent_mode(text, autoindent, cx);
3250 }
3251
3252 fn insert_with_autoindent_mode(
3253 &mut self,
3254 text: &str,
3255 autoindent_mode: Option<AutoindentMode>,
3256 cx: &mut ViewContext<Self>,
3257 ) {
3258 if self.read_only(cx) {
3259 return;
3260 }
3261
3262 let text: Arc<str> = text.into();
3263 self.transact(cx, |this, cx| {
3264 let old_selections = this.selections.all_adjusted(cx);
3265 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3266 let anchors = {
3267 let snapshot = buffer.read(cx);
3268 old_selections
3269 .iter()
3270 .map(|s| {
3271 let anchor = snapshot.anchor_after(s.head());
3272 s.map(|_| anchor)
3273 })
3274 .collect::<Vec<_>>()
3275 };
3276 buffer.edit(
3277 old_selections
3278 .iter()
3279 .map(|s| (s.start..s.end, text.clone())),
3280 autoindent_mode,
3281 cx,
3282 );
3283 anchors
3284 });
3285
3286 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3287 s.select_anchors(selection_anchors);
3288 })
3289 });
3290 }
3291
3292 fn trigger_completion_on_input(
3293 &mut self,
3294 text: &str,
3295 trigger_in_words: bool,
3296 cx: &mut ViewContext<Self>,
3297 ) {
3298 if self.is_completion_trigger(text, trigger_in_words, cx) {
3299 self.show_completions(
3300 &ShowCompletions {
3301 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3302 },
3303 cx,
3304 );
3305 } else {
3306 self.hide_context_menu(cx);
3307 }
3308 }
3309
3310 fn is_completion_trigger(
3311 &self,
3312 text: &str,
3313 trigger_in_words: bool,
3314 cx: &mut ViewContext<Self>,
3315 ) -> bool {
3316 let position = self.selections.newest_anchor().head();
3317 let multibuffer = self.buffer.read(cx);
3318 let Some(buffer) = position
3319 .buffer_id
3320 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3321 else {
3322 return false;
3323 };
3324
3325 if let Some(completion_provider) = &self.completion_provider {
3326 completion_provider.is_completion_trigger(
3327 &buffer,
3328 position.text_anchor,
3329 text,
3330 trigger_in_words,
3331 cx,
3332 )
3333 } else {
3334 false
3335 }
3336 }
3337
3338 /// If any empty selections is touching the start of its innermost containing autoclose
3339 /// region, expand it to select the brackets.
3340 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3341 let selections = self.selections.all::<usize>(cx);
3342 let buffer = self.buffer.read(cx).read(cx);
3343 let new_selections = self
3344 .selections_with_autoclose_regions(selections, &buffer)
3345 .map(|(mut selection, region)| {
3346 if !selection.is_empty() {
3347 return selection;
3348 }
3349
3350 if let Some(region) = region {
3351 let mut range = region.range.to_offset(&buffer);
3352 if selection.start == range.start && range.start >= region.pair.start.len() {
3353 range.start -= region.pair.start.len();
3354 if buffer.contains_str_at(range.start, ®ion.pair.start)
3355 && buffer.contains_str_at(range.end, ®ion.pair.end)
3356 {
3357 range.end += region.pair.end.len();
3358 selection.start = range.start;
3359 selection.end = range.end;
3360
3361 return selection;
3362 }
3363 }
3364 }
3365
3366 let always_treat_brackets_as_autoclosed = buffer
3367 .settings_at(selection.start, cx)
3368 .always_treat_brackets_as_autoclosed;
3369
3370 if !always_treat_brackets_as_autoclosed {
3371 return selection;
3372 }
3373
3374 if let Some(scope) = buffer.language_scope_at(selection.start) {
3375 for (pair, enabled) in scope.brackets() {
3376 if !enabled || !pair.close {
3377 continue;
3378 }
3379
3380 if buffer.contains_str_at(selection.start, &pair.end) {
3381 let pair_start_len = pair.start.len();
3382 if buffer.contains_str_at(
3383 selection.start.saturating_sub(pair_start_len),
3384 &pair.start,
3385 ) {
3386 selection.start -= pair_start_len;
3387 selection.end += pair.end.len();
3388
3389 return selection;
3390 }
3391 }
3392 }
3393 }
3394
3395 selection
3396 })
3397 .collect();
3398
3399 drop(buffer);
3400 self.change_selections(None, cx, |selections| selections.select(new_selections));
3401 }
3402
3403 /// Iterate the given selections, and for each one, find the smallest surrounding
3404 /// autoclose region. This uses the ordering of the selections and the autoclose
3405 /// regions to avoid repeated comparisons.
3406 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3407 &'a self,
3408 selections: impl IntoIterator<Item = Selection<D>>,
3409 buffer: &'a MultiBufferSnapshot,
3410 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3411 let mut i = 0;
3412 let mut regions = self.autoclose_regions.as_slice();
3413 selections.into_iter().map(move |selection| {
3414 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3415
3416 let mut enclosing = None;
3417 while let Some(pair_state) = regions.get(i) {
3418 if pair_state.range.end.to_offset(buffer) < range.start {
3419 regions = ®ions[i + 1..];
3420 i = 0;
3421 } else if pair_state.range.start.to_offset(buffer) > range.end {
3422 break;
3423 } else {
3424 if pair_state.selection_id == selection.id {
3425 enclosing = Some(pair_state);
3426 }
3427 i += 1;
3428 }
3429 }
3430
3431 (selection, enclosing)
3432 })
3433 }
3434
3435 /// Remove any autoclose regions that no longer contain their selection.
3436 fn invalidate_autoclose_regions(
3437 &mut self,
3438 mut selections: &[Selection<Anchor>],
3439 buffer: &MultiBufferSnapshot,
3440 ) {
3441 self.autoclose_regions.retain(|state| {
3442 let mut i = 0;
3443 while let Some(selection) = selections.get(i) {
3444 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3445 selections = &selections[1..];
3446 continue;
3447 }
3448 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3449 break;
3450 }
3451 if selection.id == state.selection_id {
3452 return true;
3453 } else {
3454 i += 1;
3455 }
3456 }
3457 false
3458 });
3459 }
3460
3461 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3462 let offset = position.to_offset(buffer);
3463 let (word_range, kind) = buffer.surrounding_word(offset, true);
3464 if offset > word_range.start && kind == Some(CharKind::Word) {
3465 Some(
3466 buffer
3467 .text_for_range(word_range.start..offset)
3468 .collect::<String>(),
3469 )
3470 } else {
3471 None
3472 }
3473 }
3474
3475 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3476 self.refresh_inlay_hints(
3477 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3478 cx,
3479 );
3480 }
3481
3482 pub fn inlay_hints_enabled(&self) -> bool {
3483 self.inlay_hint_cache.enabled
3484 }
3485
3486 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3487 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3488 return;
3489 }
3490
3491 let reason_description = reason.description();
3492 let ignore_debounce = matches!(
3493 reason,
3494 InlayHintRefreshReason::SettingsChange(_)
3495 | InlayHintRefreshReason::Toggle(_)
3496 | InlayHintRefreshReason::ExcerptsRemoved(_)
3497 );
3498 let (invalidate_cache, required_languages) = match reason {
3499 InlayHintRefreshReason::Toggle(enabled) => {
3500 self.inlay_hint_cache.enabled = enabled;
3501 if enabled {
3502 (InvalidationStrategy::RefreshRequested, None)
3503 } else {
3504 self.inlay_hint_cache.clear();
3505 self.splice_inlays(
3506 self.visible_inlay_hints(cx)
3507 .iter()
3508 .map(|inlay| inlay.id)
3509 .collect(),
3510 Vec::new(),
3511 cx,
3512 );
3513 return;
3514 }
3515 }
3516 InlayHintRefreshReason::SettingsChange(new_settings) => {
3517 match self.inlay_hint_cache.update_settings(
3518 &self.buffer,
3519 new_settings,
3520 self.visible_inlay_hints(cx),
3521 cx,
3522 ) {
3523 ControlFlow::Break(Some(InlaySplice {
3524 to_remove,
3525 to_insert,
3526 })) => {
3527 self.splice_inlays(to_remove, to_insert, cx);
3528 return;
3529 }
3530 ControlFlow::Break(None) => return,
3531 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3532 }
3533 }
3534 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3535 if let Some(InlaySplice {
3536 to_remove,
3537 to_insert,
3538 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3539 {
3540 self.splice_inlays(to_remove, to_insert, cx);
3541 }
3542 return;
3543 }
3544 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3545 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3546 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3547 }
3548 InlayHintRefreshReason::RefreshRequested => {
3549 (InvalidationStrategy::RefreshRequested, None)
3550 }
3551 };
3552
3553 if let Some(InlaySplice {
3554 to_remove,
3555 to_insert,
3556 }) = self.inlay_hint_cache.spawn_hint_refresh(
3557 reason_description,
3558 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3559 invalidate_cache,
3560 ignore_debounce,
3561 cx,
3562 ) {
3563 self.splice_inlays(to_remove, to_insert, cx);
3564 }
3565 }
3566
3567 fn visible_inlay_hints(&self, cx: &ViewContext<Editor>) -> Vec<Inlay> {
3568 self.display_map
3569 .read(cx)
3570 .current_inlays()
3571 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3572 .cloned()
3573 .collect()
3574 }
3575
3576 pub fn excerpts_for_inlay_hints_query(
3577 &self,
3578 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3579 cx: &mut ViewContext<Editor>,
3580 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3581 let Some(project) = self.project.as_ref() else {
3582 return HashMap::default();
3583 };
3584 let project = project.read(cx);
3585 let multi_buffer = self.buffer().read(cx);
3586 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3587 let multi_buffer_visible_start = self
3588 .scroll_manager
3589 .anchor()
3590 .anchor
3591 .to_point(&multi_buffer_snapshot);
3592 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3593 multi_buffer_visible_start
3594 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3595 Bias::Left,
3596 );
3597 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3598 multi_buffer_snapshot
3599 .range_to_buffer_ranges(multi_buffer_visible_range)
3600 .into_iter()
3601 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3602 .filter_map(|(buffer, excerpt_visible_range, excerpt_id)| {
3603 let buffer_file = project::File::from_dyn(buffer.file())?;
3604 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3605 let worktree_entry = buffer_worktree
3606 .read(cx)
3607 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3608 if worktree_entry.is_ignored {
3609 return None;
3610 }
3611
3612 let language = buffer.language()?;
3613 if let Some(restrict_to_languages) = restrict_to_languages {
3614 if !restrict_to_languages.contains(language) {
3615 return None;
3616 }
3617 }
3618 Some((
3619 excerpt_id,
3620 (
3621 multi_buffer.buffer(buffer.remote_id()).unwrap(),
3622 buffer.version().clone(),
3623 excerpt_visible_range,
3624 ),
3625 ))
3626 })
3627 .collect()
3628 }
3629
3630 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3631 TextLayoutDetails {
3632 text_system: cx.text_system().clone(),
3633 editor_style: self.style.clone().unwrap(),
3634 rem_size: cx.rem_size(),
3635 scroll_anchor: self.scroll_manager.anchor(),
3636 visible_rows: self.visible_line_count(),
3637 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3638 }
3639 }
3640
3641 pub fn splice_inlays(
3642 &self,
3643 to_remove: Vec<InlayId>,
3644 to_insert: Vec<Inlay>,
3645 cx: &mut ViewContext<Self>,
3646 ) {
3647 self.display_map.update(cx, |display_map, cx| {
3648 display_map.splice_inlays(to_remove, to_insert, cx)
3649 });
3650 cx.notify();
3651 }
3652
3653 fn trigger_on_type_formatting(
3654 &self,
3655 input: String,
3656 cx: &mut ViewContext<Self>,
3657 ) -> Option<Task<Result<()>>> {
3658 if input.len() != 1 {
3659 return None;
3660 }
3661
3662 let project = self.project.as_ref()?;
3663 let position = self.selections.newest_anchor().head();
3664 let (buffer, buffer_position) = self
3665 .buffer
3666 .read(cx)
3667 .text_anchor_for_position(position, cx)?;
3668
3669 let settings = language_settings::language_settings(
3670 buffer
3671 .read(cx)
3672 .language_at(buffer_position)
3673 .map(|l| l.name()),
3674 buffer.read(cx).file(),
3675 cx,
3676 );
3677 if !settings.use_on_type_format {
3678 return None;
3679 }
3680
3681 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3682 // hence we do LSP request & edit on host side only — add formats to host's history.
3683 let push_to_lsp_host_history = true;
3684 // If this is not the host, append its history with new edits.
3685 let push_to_client_history = project.read(cx).is_via_collab();
3686
3687 let on_type_formatting = project.update(cx, |project, cx| {
3688 project.on_type_format(
3689 buffer.clone(),
3690 buffer_position,
3691 input,
3692 push_to_lsp_host_history,
3693 cx,
3694 )
3695 });
3696 Some(cx.spawn(|editor, mut cx| async move {
3697 if let Some(transaction) = on_type_formatting.await? {
3698 if push_to_client_history {
3699 buffer
3700 .update(&mut cx, |buffer, _| {
3701 buffer.push_transaction(transaction, Instant::now());
3702 })
3703 .ok();
3704 }
3705 editor.update(&mut cx, |editor, cx| {
3706 editor.refresh_document_highlights(cx);
3707 })?;
3708 }
3709 Ok(())
3710 }))
3711 }
3712
3713 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3714 if self.pending_rename.is_some() {
3715 return;
3716 }
3717
3718 let Some(provider) = self.completion_provider.as_ref() else {
3719 return;
3720 };
3721
3722 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3723 return;
3724 }
3725
3726 let position = self.selections.newest_anchor().head();
3727 if position.diff_base_anchor.is_some() {
3728 return;
3729 }
3730 let (buffer, buffer_position) =
3731 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3732 output
3733 } else {
3734 return;
3735 };
3736 let show_completion_documentation = buffer
3737 .read(cx)
3738 .snapshot()
3739 .settings_at(buffer_position, cx)
3740 .show_completion_documentation;
3741
3742 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3743
3744 let trigger_kind = match &options.trigger {
3745 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3746 CompletionTriggerKind::TRIGGER_CHARACTER
3747 }
3748 _ => CompletionTriggerKind::INVOKED,
3749 };
3750 let completion_context = CompletionContext {
3751 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3752 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3753 Some(String::from(trigger))
3754 } else {
3755 None
3756 }
3757 }),
3758 trigger_kind,
3759 };
3760 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3761 let sort_completions = provider.sort_completions();
3762
3763 let id = post_inc(&mut self.next_completion_id);
3764 let task = cx.spawn(|editor, mut cx| {
3765 async move {
3766 editor.update(&mut cx, |this, _| {
3767 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3768 })?;
3769 let completions = completions.await.log_err();
3770 let menu = if let Some(completions) = completions {
3771 let mut menu = CompletionsMenu::new(
3772 id,
3773 sort_completions,
3774 show_completion_documentation,
3775 position,
3776 buffer.clone(),
3777 completions.into(),
3778 );
3779
3780 menu.filter(query.as_deref(), cx.background_executor().clone())
3781 .await;
3782
3783 menu.visible().then_some(menu)
3784 } else {
3785 None
3786 };
3787
3788 editor.update(&mut cx, |editor, cx| {
3789 match editor.context_menu.borrow().as_ref() {
3790 None => {}
3791 Some(CodeContextMenu::Completions(prev_menu)) => {
3792 if prev_menu.id > id {
3793 return;
3794 }
3795 }
3796 _ => return,
3797 }
3798
3799 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3800 let mut menu = menu.unwrap();
3801 menu.resolve_visible_completions(editor.completion_provider.as_deref(), cx);
3802
3803 if editor.show_inline_completions_in_menu(cx) {
3804 if let Some(hint) = editor.inline_completion_menu_hint(cx) {
3805 menu.show_inline_completion_hint(hint);
3806 }
3807 } else {
3808 editor.discard_inline_completion(false, cx);
3809 }
3810
3811 *editor.context_menu.borrow_mut() =
3812 Some(CodeContextMenu::Completions(menu));
3813
3814 cx.notify();
3815 } else if editor.completion_tasks.len() <= 1 {
3816 // If there are no more completion tasks and the last menu was
3817 // empty, we should hide it.
3818 let was_hidden = editor.hide_context_menu(cx).is_none();
3819 // If it was already hidden and we don't show inline
3820 // completions in the menu, we should also show the
3821 // inline-completion when available.
3822 if was_hidden && editor.show_inline_completions_in_menu(cx) {
3823 editor.update_visible_inline_completion(cx);
3824 }
3825 }
3826 })?;
3827
3828 Ok::<_, anyhow::Error>(())
3829 }
3830 .log_err()
3831 });
3832
3833 self.completion_tasks.push((id, task));
3834 }
3835
3836 pub fn confirm_completion(
3837 &mut self,
3838 action: &ConfirmCompletion,
3839 cx: &mut ViewContext<Self>,
3840 ) -> Option<Task<Result<()>>> {
3841 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3842 }
3843
3844 pub fn compose_completion(
3845 &mut self,
3846 action: &ComposeCompletion,
3847 cx: &mut ViewContext<Self>,
3848 ) -> Option<Task<Result<()>>> {
3849 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3850 }
3851
3852 fn toggle_zed_predict_tos(&mut self, cx: &mut ViewContext<Self>) {
3853 let (Some(workspace), Some(project)) = (self.workspace(), self.project.as_ref()) else {
3854 return;
3855 };
3856
3857 ZedPredictTos::toggle(workspace, project.read(cx).user_store().clone(), cx);
3858 }
3859
3860 fn do_completion(
3861 &mut self,
3862 item_ix: Option<usize>,
3863 intent: CompletionIntent,
3864 cx: &mut ViewContext<Editor>,
3865 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3866 use language::ToOffset as _;
3867
3868 {
3869 let context_menu = self.context_menu.borrow();
3870 if let CodeContextMenu::Completions(menu) = context_menu.as_ref()? {
3871 let entries = menu.entries.borrow();
3872 let entry = entries.get(item_ix.unwrap_or(menu.selected_item));
3873 match entry {
3874 Some(CompletionEntry::InlineCompletionHint(
3875 InlineCompletionMenuHint::Loading,
3876 )) => return Some(Task::ready(Ok(()))),
3877 Some(CompletionEntry::InlineCompletionHint(InlineCompletionMenuHint::None)) => {
3878 drop(entries);
3879 drop(context_menu);
3880 self.context_menu_next(&Default::default(), cx);
3881 return Some(Task::ready(Ok(())));
3882 }
3883 Some(CompletionEntry::InlineCompletionHint(
3884 InlineCompletionMenuHint::PendingTermsAcceptance,
3885 )) => {
3886 drop(entries);
3887 drop(context_menu);
3888 self.toggle_zed_predict_tos(cx);
3889 return Some(Task::ready(Ok(())));
3890 }
3891 _ => {}
3892 }
3893 }
3894 }
3895
3896 let completions_menu =
3897 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3898 menu
3899 } else {
3900 return None;
3901 };
3902
3903 let entries = completions_menu.entries.borrow();
3904 let mat = entries.get(item_ix.unwrap_or(completions_menu.selected_item))?;
3905 let mat = match mat {
3906 CompletionEntry::InlineCompletionHint(_) => {
3907 self.accept_inline_completion(&AcceptInlineCompletion, cx);
3908 cx.stop_propagation();
3909 return Some(Task::ready(Ok(())));
3910 }
3911 CompletionEntry::Match(mat) => {
3912 if self.show_inline_completions_in_menu(cx) {
3913 self.discard_inline_completion(true, cx);
3914 }
3915 mat
3916 }
3917 };
3918 let candidate_id = mat.candidate_id;
3919 drop(entries);
3920
3921 let buffer_handle = completions_menu.buffer;
3922 let completion = completions_menu
3923 .completions
3924 .borrow()
3925 .get(candidate_id)?
3926 .clone();
3927 cx.stop_propagation();
3928
3929 let snippet;
3930 let text;
3931
3932 if completion.is_snippet() {
3933 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3934 text = snippet.as_ref().unwrap().text.clone();
3935 } else {
3936 snippet = None;
3937 text = completion.new_text.clone();
3938 };
3939 let selections = self.selections.all::<usize>(cx);
3940 let buffer = buffer_handle.read(cx);
3941 let old_range = completion.old_range.to_offset(buffer);
3942 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3943
3944 let newest_selection = self.selections.newest_anchor();
3945 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3946 return None;
3947 }
3948
3949 let lookbehind = newest_selection
3950 .start
3951 .text_anchor
3952 .to_offset(buffer)
3953 .saturating_sub(old_range.start);
3954 let lookahead = old_range
3955 .end
3956 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3957 let mut common_prefix_len = old_text
3958 .bytes()
3959 .zip(text.bytes())
3960 .take_while(|(a, b)| a == b)
3961 .count();
3962
3963 let snapshot = self.buffer.read(cx).snapshot(cx);
3964 let mut range_to_replace: Option<Range<isize>> = None;
3965 let mut ranges = Vec::new();
3966 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3967 for selection in &selections {
3968 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3969 let start = selection.start.saturating_sub(lookbehind);
3970 let end = selection.end + lookahead;
3971 if selection.id == newest_selection.id {
3972 range_to_replace = Some(
3973 ((start + common_prefix_len) as isize - selection.start as isize)
3974 ..(end as isize - selection.start as isize),
3975 );
3976 }
3977 ranges.push(start + common_prefix_len..end);
3978 } else {
3979 common_prefix_len = 0;
3980 ranges.clear();
3981 ranges.extend(selections.iter().map(|s| {
3982 if s.id == newest_selection.id {
3983 range_to_replace = Some(
3984 old_range.start.to_offset_utf16(&snapshot).0 as isize
3985 - selection.start as isize
3986 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3987 - selection.start as isize,
3988 );
3989 old_range.clone()
3990 } else {
3991 s.start..s.end
3992 }
3993 }));
3994 break;
3995 }
3996 if !self.linked_edit_ranges.is_empty() {
3997 let start_anchor = snapshot.anchor_before(selection.head());
3998 let end_anchor = snapshot.anchor_after(selection.tail());
3999 if let Some(ranges) = self
4000 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4001 {
4002 for (buffer, edits) in ranges {
4003 linked_edits.entry(buffer.clone()).or_default().extend(
4004 edits
4005 .into_iter()
4006 .map(|range| (range, text[common_prefix_len..].to_owned())),
4007 );
4008 }
4009 }
4010 }
4011 }
4012 let text = &text[common_prefix_len..];
4013
4014 cx.emit(EditorEvent::InputHandled {
4015 utf16_range_to_replace: range_to_replace,
4016 text: text.into(),
4017 });
4018
4019 self.transact(cx, |this, cx| {
4020 if let Some(mut snippet) = snippet {
4021 snippet.text = text.to_string();
4022 for tabstop in snippet
4023 .tabstops
4024 .iter_mut()
4025 .flat_map(|tabstop| tabstop.ranges.iter_mut())
4026 {
4027 tabstop.start -= common_prefix_len as isize;
4028 tabstop.end -= common_prefix_len as isize;
4029 }
4030
4031 this.insert_snippet(&ranges, snippet, cx).log_err();
4032 } else {
4033 this.buffer.update(cx, |buffer, cx| {
4034 buffer.edit(
4035 ranges.iter().map(|range| (range.clone(), text)),
4036 this.autoindent_mode.clone(),
4037 cx,
4038 );
4039 });
4040 }
4041 for (buffer, edits) in linked_edits {
4042 buffer.update(cx, |buffer, cx| {
4043 let snapshot = buffer.snapshot();
4044 let edits = edits
4045 .into_iter()
4046 .map(|(range, text)| {
4047 use text::ToPoint as TP;
4048 let end_point = TP::to_point(&range.end, &snapshot);
4049 let start_point = TP::to_point(&range.start, &snapshot);
4050 (start_point..end_point, text)
4051 })
4052 .sorted_by_key(|(range, _)| range.start)
4053 .collect::<Vec<_>>();
4054 buffer.edit(edits, None, cx);
4055 })
4056 }
4057
4058 this.refresh_inline_completion(true, false, cx);
4059 });
4060
4061 let show_new_completions_on_confirm = completion
4062 .confirm
4063 .as_ref()
4064 .map_or(false, |confirm| confirm(intent, cx));
4065 if show_new_completions_on_confirm {
4066 self.show_completions(&ShowCompletions { trigger: None }, cx);
4067 }
4068
4069 let provider = self.completion_provider.as_ref()?;
4070 drop(completion);
4071 let apply_edits = provider.apply_additional_edits_for_completion(
4072 buffer_handle,
4073 completions_menu.completions.clone(),
4074 candidate_id,
4075 true,
4076 cx,
4077 );
4078
4079 let editor_settings = EditorSettings::get_global(cx);
4080 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4081 // After the code completion is finished, users often want to know what signatures are needed.
4082 // so we should automatically call signature_help
4083 self.show_signature_help(&ShowSignatureHelp, cx);
4084 }
4085
4086 Some(cx.foreground_executor().spawn(async move {
4087 apply_edits.await?;
4088 Ok(())
4089 }))
4090 }
4091
4092 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4093 let mut context_menu = self.context_menu.borrow_mut();
4094 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4095 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4096 // Toggle if we're selecting the same one
4097 *context_menu = None;
4098 cx.notify();
4099 return;
4100 } else {
4101 // Otherwise, clear it and start a new one
4102 *context_menu = None;
4103 cx.notify();
4104 }
4105 }
4106 drop(context_menu);
4107 let snapshot = self.snapshot(cx);
4108 let deployed_from_indicator = action.deployed_from_indicator;
4109 let mut task = self.code_actions_task.take();
4110 let action = action.clone();
4111 cx.spawn(|editor, mut cx| async move {
4112 while let Some(prev_task) = task {
4113 prev_task.await.log_err();
4114 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4115 }
4116
4117 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4118 if editor.focus_handle.is_focused(cx) {
4119 let multibuffer_point = action
4120 .deployed_from_indicator
4121 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4122 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4123 let (buffer, buffer_row) = snapshot
4124 .buffer_snapshot
4125 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4126 .and_then(|(buffer_snapshot, range)| {
4127 editor
4128 .buffer
4129 .read(cx)
4130 .buffer(buffer_snapshot.remote_id())
4131 .map(|buffer| (buffer, range.start.row))
4132 })?;
4133 let (_, code_actions) = editor
4134 .available_code_actions
4135 .clone()
4136 .and_then(|(location, code_actions)| {
4137 let snapshot = location.buffer.read(cx).snapshot();
4138 let point_range = location.range.to_point(&snapshot);
4139 let point_range = point_range.start.row..=point_range.end.row;
4140 if point_range.contains(&buffer_row) {
4141 Some((location, code_actions))
4142 } else {
4143 None
4144 }
4145 })
4146 .unzip();
4147 let buffer_id = buffer.read(cx).remote_id();
4148 let tasks = editor
4149 .tasks
4150 .get(&(buffer_id, buffer_row))
4151 .map(|t| Arc::new(t.to_owned()));
4152 if tasks.is_none() && code_actions.is_none() {
4153 return None;
4154 }
4155
4156 editor.completion_tasks.clear();
4157 editor.discard_inline_completion(false, cx);
4158 let task_context =
4159 tasks
4160 .as_ref()
4161 .zip(editor.project.clone())
4162 .map(|(tasks, project)| {
4163 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4164 });
4165
4166 Some(cx.spawn(|editor, mut cx| async move {
4167 let task_context = match task_context {
4168 Some(task_context) => task_context.await,
4169 None => None,
4170 };
4171 let resolved_tasks =
4172 tasks.zip(task_context).map(|(tasks, task_context)| {
4173 Rc::new(ResolvedTasks {
4174 templates: tasks.resolve(&task_context).collect(),
4175 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4176 multibuffer_point.row,
4177 tasks.column,
4178 )),
4179 })
4180 });
4181 let spawn_straight_away = resolved_tasks
4182 .as_ref()
4183 .map_or(false, |tasks| tasks.templates.len() == 1)
4184 && code_actions
4185 .as_ref()
4186 .map_or(true, |actions| actions.is_empty());
4187 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4188 *editor.context_menu.borrow_mut() =
4189 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4190 buffer,
4191 actions: CodeActionContents {
4192 tasks: resolved_tasks,
4193 actions: code_actions,
4194 },
4195 selected_item: Default::default(),
4196 scroll_handle: UniformListScrollHandle::default(),
4197 deployed_from_indicator,
4198 }));
4199 if spawn_straight_away {
4200 if let Some(task) = editor.confirm_code_action(
4201 &ConfirmCodeAction { item_ix: Some(0) },
4202 cx,
4203 ) {
4204 cx.notify();
4205 return task;
4206 }
4207 }
4208 cx.notify();
4209 Task::ready(Ok(()))
4210 }) {
4211 task.await
4212 } else {
4213 Ok(())
4214 }
4215 }))
4216 } else {
4217 Some(Task::ready(Ok(())))
4218 }
4219 })?;
4220 if let Some(task) = spawned_test_task {
4221 task.await?;
4222 }
4223
4224 Ok::<_, anyhow::Error>(())
4225 })
4226 .detach_and_log_err(cx);
4227 }
4228
4229 pub fn confirm_code_action(
4230 &mut self,
4231 action: &ConfirmCodeAction,
4232 cx: &mut ViewContext<Self>,
4233 ) -> Option<Task<Result<()>>> {
4234 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4235 menu
4236 } else {
4237 return None;
4238 };
4239 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4240 let action = actions_menu.actions.get(action_ix)?;
4241 let title = action.label();
4242 let buffer = actions_menu.buffer;
4243 let workspace = self.workspace()?;
4244
4245 match action {
4246 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4247 workspace.update(cx, |workspace, cx| {
4248 workspace::tasks::schedule_resolved_task(
4249 workspace,
4250 task_source_kind,
4251 resolved_task,
4252 false,
4253 cx,
4254 );
4255
4256 Some(Task::ready(Ok(())))
4257 })
4258 }
4259 CodeActionsItem::CodeAction {
4260 excerpt_id,
4261 action,
4262 provider,
4263 } => {
4264 let apply_code_action =
4265 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4266 let workspace = workspace.downgrade();
4267 Some(cx.spawn(|editor, cx| async move {
4268 let project_transaction = apply_code_action.await?;
4269 Self::open_project_transaction(
4270 &editor,
4271 workspace,
4272 project_transaction,
4273 title,
4274 cx,
4275 )
4276 .await
4277 }))
4278 }
4279 }
4280 }
4281
4282 pub async fn open_project_transaction(
4283 this: &WeakView<Editor>,
4284 workspace: WeakView<Workspace>,
4285 transaction: ProjectTransaction,
4286 title: String,
4287 mut cx: AsyncWindowContext,
4288 ) -> Result<()> {
4289 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4290 cx.update(|cx| {
4291 entries.sort_unstable_by_key(|(buffer, _)| {
4292 buffer.read(cx).file().map(|f| f.path().clone())
4293 });
4294 })?;
4295
4296 // If the project transaction's edits are all contained within this editor, then
4297 // avoid opening a new editor to display them.
4298
4299 if let Some((buffer, transaction)) = entries.first() {
4300 if entries.len() == 1 {
4301 let excerpt = this.update(&mut cx, |editor, cx| {
4302 editor
4303 .buffer()
4304 .read(cx)
4305 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4306 })?;
4307 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4308 if excerpted_buffer == *buffer {
4309 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4310 let excerpt_range = excerpt_range.to_offset(buffer);
4311 buffer
4312 .edited_ranges_for_transaction::<usize>(transaction)
4313 .all(|range| {
4314 excerpt_range.start <= range.start
4315 && excerpt_range.end >= range.end
4316 })
4317 })?;
4318
4319 if all_edits_within_excerpt {
4320 return Ok(());
4321 }
4322 }
4323 }
4324 }
4325 } else {
4326 return Ok(());
4327 }
4328
4329 let mut ranges_to_highlight = Vec::new();
4330 let excerpt_buffer = cx.new_model(|cx| {
4331 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4332 for (buffer_handle, transaction) in &entries {
4333 let buffer = buffer_handle.read(cx);
4334 ranges_to_highlight.extend(
4335 multibuffer.push_excerpts_with_context_lines(
4336 buffer_handle.clone(),
4337 buffer
4338 .edited_ranges_for_transaction::<usize>(transaction)
4339 .collect(),
4340 DEFAULT_MULTIBUFFER_CONTEXT,
4341 cx,
4342 ),
4343 );
4344 }
4345 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4346 multibuffer
4347 })?;
4348
4349 workspace.update(&mut cx, |workspace, cx| {
4350 let project = workspace.project().clone();
4351 let editor =
4352 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4353 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4354 editor.update(cx, |editor, cx| {
4355 editor.highlight_background::<Self>(
4356 &ranges_to_highlight,
4357 |theme| theme.editor_highlighted_line_background,
4358 cx,
4359 );
4360 });
4361 })?;
4362
4363 Ok(())
4364 }
4365
4366 pub fn clear_code_action_providers(&mut self) {
4367 self.code_action_providers.clear();
4368 self.available_code_actions.take();
4369 }
4370
4371 pub fn add_code_action_provider(
4372 &mut self,
4373 provider: Rc<dyn CodeActionProvider>,
4374 cx: &mut ViewContext<Self>,
4375 ) {
4376 if self
4377 .code_action_providers
4378 .iter()
4379 .any(|existing_provider| existing_provider.id() == provider.id())
4380 {
4381 return;
4382 }
4383
4384 self.code_action_providers.push(provider);
4385 self.refresh_code_actions(cx);
4386 }
4387
4388 pub fn remove_code_action_provider(&mut self, id: Arc<str>, cx: &mut ViewContext<Self>) {
4389 self.code_action_providers
4390 .retain(|provider| provider.id() != id);
4391 self.refresh_code_actions(cx);
4392 }
4393
4394 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4395 let buffer = self.buffer.read(cx);
4396 let newest_selection = self.selections.newest_anchor().clone();
4397 if newest_selection.head().diff_base_anchor.is_some() {
4398 return None;
4399 }
4400 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4401 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4402 if start_buffer != end_buffer {
4403 return None;
4404 }
4405
4406 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4407 cx.background_executor()
4408 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4409 .await;
4410
4411 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4412 let providers = this.code_action_providers.clone();
4413 let tasks = this
4414 .code_action_providers
4415 .iter()
4416 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4417 .collect::<Vec<_>>();
4418 (providers, tasks)
4419 })?;
4420
4421 let mut actions = Vec::new();
4422 for (provider, provider_actions) in
4423 providers.into_iter().zip(future::join_all(tasks).await)
4424 {
4425 if let Some(provider_actions) = provider_actions.log_err() {
4426 actions.extend(provider_actions.into_iter().map(|action| {
4427 AvailableCodeAction {
4428 excerpt_id: newest_selection.start.excerpt_id,
4429 action,
4430 provider: provider.clone(),
4431 }
4432 }));
4433 }
4434 }
4435
4436 this.update(&mut cx, |this, cx| {
4437 this.available_code_actions = if actions.is_empty() {
4438 None
4439 } else {
4440 Some((
4441 Location {
4442 buffer: start_buffer,
4443 range: start..end,
4444 },
4445 actions.into(),
4446 ))
4447 };
4448 cx.notify();
4449 })
4450 }));
4451 None
4452 }
4453
4454 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4455 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4456 self.show_git_blame_inline = false;
4457
4458 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4459 cx.background_executor().timer(delay).await;
4460
4461 this.update(&mut cx, |this, cx| {
4462 this.show_git_blame_inline = true;
4463 cx.notify();
4464 })
4465 .log_err();
4466 }));
4467 }
4468 }
4469
4470 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4471 if self.pending_rename.is_some() {
4472 return None;
4473 }
4474
4475 let provider = self.semantics_provider.clone()?;
4476 let buffer = self.buffer.read(cx);
4477 let newest_selection = self.selections.newest_anchor().clone();
4478 let cursor_position = newest_selection.head();
4479 let (cursor_buffer, cursor_buffer_position) =
4480 buffer.text_anchor_for_position(cursor_position, cx)?;
4481 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4482 if cursor_buffer != tail_buffer {
4483 return None;
4484 }
4485 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4486 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4487 cx.background_executor()
4488 .timer(Duration::from_millis(debounce))
4489 .await;
4490
4491 let highlights = if let Some(highlights) = cx
4492 .update(|cx| {
4493 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4494 })
4495 .ok()
4496 .flatten()
4497 {
4498 highlights.await.log_err()
4499 } else {
4500 None
4501 };
4502
4503 if let Some(highlights) = highlights {
4504 this.update(&mut cx, |this, cx| {
4505 if this.pending_rename.is_some() {
4506 return;
4507 }
4508
4509 let buffer_id = cursor_position.buffer_id;
4510 let buffer = this.buffer.read(cx);
4511 if !buffer
4512 .text_anchor_for_position(cursor_position, cx)
4513 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4514 {
4515 return;
4516 }
4517
4518 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4519 let mut write_ranges = Vec::new();
4520 let mut read_ranges = Vec::new();
4521 for highlight in highlights {
4522 for (excerpt_id, excerpt_range) in
4523 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4524 {
4525 let start = highlight
4526 .range
4527 .start
4528 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4529 let end = highlight
4530 .range
4531 .end
4532 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4533 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4534 continue;
4535 }
4536
4537 let range = Anchor {
4538 buffer_id,
4539 excerpt_id,
4540 text_anchor: start,
4541 diff_base_anchor: None,
4542 }..Anchor {
4543 buffer_id,
4544 excerpt_id,
4545 text_anchor: end,
4546 diff_base_anchor: None,
4547 };
4548 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4549 write_ranges.push(range);
4550 } else {
4551 read_ranges.push(range);
4552 }
4553 }
4554 }
4555
4556 this.highlight_background::<DocumentHighlightRead>(
4557 &read_ranges,
4558 |theme| theme.editor_document_highlight_read_background,
4559 cx,
4560 );
4561 this.highlight_background::<DocumentHighlightWrite>(
4562 &write_ranges,
4563 |theme| theme.editor_document_highlight_write_background,
4564 cx,
4565 );
4566 cx.notify();
4567 })
4568 .log_err();
4569 }
4570 }));
4571 None
4572 }
4573
4574 pub fn refresh_inline_completion(
4575 &mut self,
4576 debounce: bool,
4577 user_requested: bool,
4578 cx: &mut ViewContext<Self>,
4579 ) -> Option<()> {
4580 let provider = self.inline_completion_provider()?;
4581 let cursor = self.selections.newest_anchor().head();
4582 let (buffer, cursor_buffer_position) =
4583 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4584
4585 if !user_requested
4586 && (!self.enable_inline_completions
4587 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4588 || !self.is_focused(cx)
4589 || buffer.read(cx).is_empty())
4590 {
4591 self.discard_inline_completion(false, cx);
4592 return None;
4593 }
4594
4595 self.update_visible_inline_completion(cx);
4596 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4597 Some(())
4598 }
4599
4600 fn cycle_inline_completion(
4601 &mut self,
4602 direction: Direction,
4603 cx: &mut ViewContext<Self>,
4604 ) -> Option<()> {
4605 let provider = self.inline_completion_provider()?;
4606 let cursor = self.selections.newest_anchor().head();
4607 let (buffer, cursor_buffer_position) =
4608 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4609 if !self.enable_inline_completions
4610 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4611 {
4612 return None;
4613 }
4614
4615 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4616 self.update_visible_inline_completion(cx);
4617
4618 Some(())
4619 }
4620
4621 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4622 if !self.has_active_inline_completion() {
4623 self.refresh_inline_completion(false, true, cx);
4624 return;
4625 }
4626
4627 self.update_visible_inline_completion(cx);
4628 }
4629
4630 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4631 self.show_cursor_names(cx);
4632 }
4633
4634 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4635 self.show_cursor_names = true;
4636 cx.notify();
4637 cx.spawn(|this, mut cx| async move {
4638 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4639 this.update(&mut cx, |this, cx| {
4640 this.show_cursor_names = false;
4641 cx.notify()
4642 })
4643 .ok()
4644 })
4645 .detach();
4646 }
4647
4648 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4649 if self.has_active_inline_completion() {
4650 self.cycle_inline_completion(Direction::Next, 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 previous_inline_completion(
4660 &mut self,
4661 _: &PreviousInlineCompletion,
4662 cx: &mut ViewContext<Self>,
4663 ) {
4664 if self.has_active_inline_completion() {
4665 self.cycle_inline_completion(Direction::Prev, cx);
4666 } else {
4667 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4668 if is_copilot_disabled {
4669 cx.propagate();
4670 }
4671 }
4672 }
4673
4674 pub fn accept_inline_completion(
4675 &mut self,
4676 _: &AcceptInlineCompletion,
4677 cx: &mut ViewContext<Self>,
4678 ) {
4679 let buffer = self.buffer.read(cx);
4680 let snapshot = buffer.snapshot(cx);
4681 let selection = self.selections.newest_adjusted(cx);
4682 let cursor = selection.head();
4683 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
4684 let suggested_indents = snapshot.suggested_indents([cursor.row], cx);
4685 if let Some(suggested_indent) = suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
4686 {
4687 if cursor.column < suggested_indent.len
4688 && cursor.column <= current_indent.len
4689 && current_indent.len <= suggested_indent.len
4690 {
4691 self.tab(&Default::default(), cx);
4692 return;
4693 }
4694 }
4695
4696 if self.show_inline_completions_in_menu(cx) {
4697 self.hide_context_menu(cx);
4698 }
4699
4700 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4701 return;
4702 };
4703
4704 self.report_inline_completion_event(true, cx);
4705
4706 match &active_inline_completion.completion {
4707 InlineCompletion::Move(position) => {
4708 let position = *position;
4709 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4710 selections.select_anchor_ranges([position..position]);
4711 });
4712 }
4713 InlineCompletion::Edit { edits, .. } => {
4714 if let Some(provider) = self.inline_completion_provider() {
4715 provider.accept(cx);
4716 }
4717
4718 let snapshot = self.buffer.read(cx).snapshot(cx);
4719 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4720
4721 self.buffer.update(cx, |buffer, cx| {
4722 buffer.edit(edits.iter().cloned(), None, cx)
4723 });
4724
4725 self.change_selections(None, cx, |s| {
4726 s.select_anchor_ranges([last_edit_end..last_edit_end])
4727 });
4728
4729 self.update_visible_inline_completion(cx);
4730 if self.active_inline_completion.is_none() {
4731 self.refresh_inline_completion(true, true, cx);
4732 }
4733
4734 cx.notify();
4735 }
4736 }
4737 }
4738
4739 pub fn accept_partial_inline_completion(
4740 &mut self,
4741 _: &AcceptPartialInlineCompletion,
4742 cx: &mut ViewContext<Self>,
4743 ) {
4744 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4745 return;
4746 };
4747 if self.selections.count() != 1 {
4748 return;
4749 }
4750
4751 self.report_inline_completion_event(true, cx);
4752
4753 match &active_inline_completion.completion {
4754 InlineCompletion::Move(position) => {
4755 let position = *position;
4756 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4757 selections.select_anchor_ranges([position..position]);
4758 });
4759 }
4760 InlineCompletion::Edit { edits, .. } => {
4761 // Find an insertion that starts at the cursor position.
4762 let snapshot = self.buffer.read(cx).snapshot(cx);
4763 let cursor_offset = self.selections.newest::<usize>(cx).head();
4764 let insertion = edits.iter().find_map(|(range, text)| {
4765 let range = range.to_offset(&snapshot);
4766 if range.is_empty() && range.start == cursor_offset {
4767 Some(text)
4768 } else {
4769 None
4770 }
4771 });
4772
4773 if let Some(text) = insertion {
4774 let mut partial_completion = text
4775 .chars()
4776 .by_ref()
4777 .take_while(|c| c.is_alphabetic())
4778 .collect::<String>();
4779 if partial_completion.is_empty() {
4780 partial_completion = text
4781 .chars()
4782 .by_ref()
4783 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4784 .collect::<String>();
4785 }
4786
4787 cx.emit(EditorEvent::InputHandled {
4788 utf16_range_to_replace: None,
4789 text: partial_completion.clone().into(),
4790 });
4791
4792 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4793
4794 self.refresh_inline_completion(true, true, cx);
4795 cx.notify();
4796 } else {
4797 self.accept_inline_completion(&Default::default(), cx);
4798 }
4799 }
4800 }
4801 }
4802
4803 fn discard_inline_completion(
4804 &mut self,
4805 should_report_inline_completion_event: bool,
4806 cx: &mut ViewContext<Self>,
4807 ) -> bool {
4808 if should_report_inline_completion_event {
4809 self.report_inline_completion_event(false, cx);
4810 }
4811
4812 if let Some(provider) = self.inline_completion_provider() {
4813 provider.discard(cx);
4814 }
4815
4816 self.take_active_inline_completion(cx).is_some()
4817 }
4818
4819 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4820 let Some(provider) = self.inline_completion_provider() else {
4821 return;
4822 };
4823
4824 let Some((_, buffer, _)) = self
4825 .buffer
4826 .read(cx)
4827 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4828 else {
4829 return;
4830 };
4831
4832 let extension = buffer
4833 .read(cx)
4834 .file()
4835 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4836
4837 let event_type = match accepted {
4838 true => "Inline Completion Accepted",
4839 false => "Inline Completion Discarded",
4840 };
4841 telemetry::event!(
4842 event_type,
4843 provider = provider.name(),
4844 suggestion_accepted = accepted,
4845 file_extension = extension,
4846 );
4847 }
4848
4849 pub fn has_active_inline_completion(&self) -> bool {
4850 self.active_inline_completion.is_some()
4851 }
4852
4853 fn take_active_inline_completion(
4854 &mut self,
4855 cx: &mut ViewContext<Self>,
4856 ) -> Option<InlineCompletion> {
4857 let active_inline_completion = self.active_inline_completion.take()?;
4858 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4859 self.clear_highlights::<InlineCompletionHighlight>(cx);
4860 Some(active_inline_completion.completion)
4861 }
4862
4863 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4864 let selection = self.selections.newest_anchor();
4865 let cursor = selection.head();
4866 let multibuffer = self.buffer.read(cx).snapshot(cx);
4867 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4868 let excerpt_id = cursor.excerpt_id;
4869
4870 let completions_menu_has_precedence = !self.show_inline_completions_in_menu(cx)
4871 && (self.context_menu.borrow().is_some()
4872 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion()));
4873 if completions_menu_has_precedence
4874 || !offset_selection.is_empty()
4875 || !self.enable_inline_completions
4876 || self
4877 .active_inline_completion
4878 .as_ref()
4879 .map_or(false, |completion| {
4880 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4881 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4882 !invalidation_range.contains(&offset_selection.head())
4883 })
4884 {
4885 self.discard_inline_completion(false, cx);
4886 return None;
4887 }
4888
4889 self.take_active_inline_completion(cx);
4890 let provider = self.inline_completion_provider()?;
4891
4892 let (buffer, cursor_buffer_position) =
4893 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4894
4895 let inline_completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4896 let edits = inline_completion
4897 .edits
4898 .into_iter()
4899 .flat_map(|(range, new_text)| {
4900 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
4901 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
4902 Some((start..end, new_text))
4903 })
4904 .collect::<Vec<_>>();
4905 if edits.is_empty() {
4906 return None;
4907 }
4908
4909 let first_edit_start = edits.first().unwrap().0.start;
4910 let first_edit_start_point = first_edit_start.to_point(&multibuffer);
4911 let edit_start_row = first_edit_start_point.row.saturating_sub(2);
4912
4913 let last_edit_end = edits.last().unwrap().0.end;
4914 let last_edit_end_point = last_edit_end.to_point(&multibuffer);
4915 let edit_end_row = cmp::min(multibuffer.max_point().row, last_edit_end_point.row + 2);
4916
4917 let cursor_row = cursor.to_point(&multibuffer).row;
4918
4919 let mut inlay_ids = Vec::new();
4920 let invalidation_row_range;
4921 let completion = if cursor_row < edit_start_row {
4922 invalidation_row_range = cursor_row..edit_end_row;
4923 InlineCompletion::Move(first_edit_start)
4924 } else if cursor_row > edit_end_row {
4925 invalidation_row_range = edit_start_row..cursor_row;
4926 InlineCompletion::Move(first_edit_start)
4927 } else {
4928 if edits
4929 .iter()
4930 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4931 {
4932 let mut inlays = Vec::new();
4933 for (range, new_text) in &edits {
4934 let inlay = Inlay::inline_completion(
4935 post_inc(&mut self.next_inlay_id),
4936 range.start,
4937 new_text.as_str(),
4938 );
4939 inlay_ids.push(inlay.id);
4940 inlays.push(inlay);
4941 }
4942
4943 self.splice_inlays(vec![], inlays, cx);
4944 } else {
4945 let background_color = cx.theme().status().deleted_background;
4946 self.highlight_text::<InlineCompletionHighlight>(
4947 edits.iter().map(|(range, _)| range.clone()).collect(),
4948 HighlightStyle {
4949 background_color: Some(background_color),
4950 ..Default::default()
4951 },
4952 cx,
4953 );
4954 }
4955
4956 invalidation_row_range = edit_start_row..edit_end_row;
4957
4958 let display_mode = if all_edits_insertions_or_deletions(&edits, &multibuffer) {
4959 if provider.show_tab_accept_marker()
4960 && first_edit_start_point.row == last_edit_end_point.row
4961 && !edits.iter().any(|(_, edit)| edit.contains('\n'))
4962 {
4963 EditDisplayMode::TabAccept
4964 } else {
4965 EditDisplayMode::Inline
4966 }
4967 } else {
4968 EditDisplayMode::DiffPopover
4969 };
4970
4971 let snapshot = multibuffer.buffer_for_excerpt(excerpt_id).cloned()?;
4972
4973 InlineCompletion::Edit {
4974 edits,
4975 edit_preview: inline_completion.edit_preview,
4976 display_mode,
4977 snapshot,
4978 }
4979 };
4980
4981 let invalidation_range = multibuffer
4982 .anchor_before(Point::new(invalidation_row_range.start, 0))
4983 ..multibuffer.anchor_after(Point::new(
4984 invalidation_row_range.end,
4985 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4986 ));
4987
4988 self.active_inline_completion = Some(InlineCompletionState {
4989 inlay_ids,
4990 completion,
4991 invalidation_range,
4992 });
4993
4994 if self.show_inline_completions_in_menu(cx) && self.has_active_completions_menu() {
4995 if let Some(hint) = self.inline_completion_menu_hint(cx) {
4996 match self.context_menu.borrow_mut().as_mut() {
4997 Some(CodeContextMenu::Completions(menu)) => {
4998 menu.show_inline_completion_hint(hint);
4999 }
5000 _ => {}
5001 }
5002 }
5003 }
5004
5005 cx.notify();
5006
5007 Some(())
5008 }
5009
5010 fn inline_completion_menu_hint(
5011 &self,
5012 cx: &mut ViewContext<Self>,
5013 ) -> Option<InlineCompletionMenuHint> {
5014 let provider = self.inline_completion_provider()?;
5015 if self.has_active_inline_completion() {
5016 let editor_snapshot = self.snapshot(cx);
5017
5018 let text = match &self.active_inline_completion.as_ref()?.completion {
5019 InlineCompletion::Edit {
5020 edits,
5021 edit_preview,
5022 display_mode: _,
5023 snapshot,
5024 } => edit_preview
5025 .as_ref()
5026 .and_then(|edit_preview| {
5027 inline_completion_edit_text(&snapshot, &edits, edit_preview, true, cx)
5028 })
5029 .map(InlineCompletionText::Edit),
5030 InlineCompletion::Move(target) => {
5031 let target_point =
5032 target.to_point(&editor_snapshot.display_snapshot.buffer_snapshot);
5033 let target_line = target_point.row + 1;
5034 Some(InlineCompletionText::Move(
5035 format!("Jump to edit in line {}", target_line).into(),
5036 ))
5037 }
5038 };
5039
5040 Some(InlineCompletionMenuHint::Loaded { text: text? })
5041 } else if provider.is_refreshing(cx) {
5042 Some(InlineCompletionMenuHint::Loading)
5043 } else if provider.needs_terms_acceptance(cx) {
5044 Some(InlineCompletionMenuHint::PendingTermsAcceptance)
5045 } else {
5046 Some(InlineCompletionMenuHint::None)
5047 }
5048 }
5049
5050 pub fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5051 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5052 }
5053
5054 fn show_inline_completions_in_menu(&self, cx: &AppContext) -> bool {
5055 let by_provider = matches!(
5056 self.menu_inline_completions_policy,
5057 MenuInlineCompletionsPolicy::ByProvider
5058 );
5059
5060 by_provider
5061 && EditorSettings::get_global(cx).show_inline_completions_in_menu
5062 && self
5063 .inline_completion_provider()
5064 .map_or(false, |provider| provider.show_completions_in_menu())
5065 }
5066
5067 fn render_code_actions_indicator(
5068 &self,
5069 _style: &EditorStyle,
5070 row: DisplayRow,
5071 is_active: bool,
5072 cx: &mut ViewContext<Self>,
5073 ) -> Option<IconButton> {
5074 if self.available_code_actions.is_some() {
5075 Some(
5076 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5077 .shape(ui::IconButtonShape::Square)
5078 .icon_size(IconSize::XSmall)
5079 .icon_color(Color::Muted)
5080 .toggle_state(is_active)
5081 .tooltip({
5082 let focus_handle = self.focus_handle.clone();
5083 move |cx| {
5084 Tooltip::for_action_in(
5085 "Toggle Code Actions",
5086 &ToggleCodeActions {
5087 deployed_from_indicator: None,
5088 },
5089 &focus_handle,
5090 cx,
5091 )
5092 }
5093 })
5094 .on_click(cx.listener(move |editor, _e, cx| {
5095 editor.focus(cx);
5096 editor.toggle_code_actions(
5097 &ToggleCodeActions {
5098 deployed_from_indicator: Some(row),
5099 },
5100 cx,
5101 );
5102 })),
5103 )
5104 } else {
5105 None
5106 }
5107 }
5108
5109 fn clear_tasks(&mut self) {
5110 self.tasks.clear()
5111 }
5112
5113 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5114 if self.tasks.insert(key, value).is_some() {
5115 // This case should hopefully be rare, but just in case...
5116 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5117 }
5118 }
5119
5120 fn build_tasks_context(
5121 project: &Model<Project>,
5122 buffer: &Model<Buffer>,
5123 buffer_row: u32,
5124 tasks: &Arc<RunnableTasks>,
5125 cx: &mut ViewContext<Self>,
5126 ) -> Task<Option<task::TaskContext>> {
5127 let position = Point::new(buffer_row, tasks.column);
5128 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5129 let location = Location {
5130 buffer: buffer.clone(),
5131 range: range_start..range_start,
5132 };
5133 // Fill in the environmental variables from the tree-sitter captures
5134 let mut captured_task_variables = TaskVariables::default();
5135 for (capture_name, value) in tasks.extra_variables.clone() {
5136 captured_task_variables.insert(
5137 task::VariableName::Custom(capture_name.into()),
5138 value.clone(),
5139 );
5140 }
5141 project.update(cx, |project, cx| {
5142 project.task_store().update(cx, |task_store, cx| {
5143 task_store.task_context_for_location(captured_task_variables, location, cx)
5144 })
5145 })
5146 }
5147
5148 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5149 let Some((workspace, _)) = self.workspace.clone() else {
5150 return;
5151 };
5152 let Some(project) = self.project.clone() else {
5153 return;
5154 };
5155
5156 // Try to find a closest, enclosing node using tree-sitter that has a
5157 // task
5158 let Some((buffer, buffer_row, tasks)) = self
5159 .find_enclosing_node_task(cx)
5160 // Or find the task that's closest in row-distance.
5161 .or_else(|| self.find_closest_task(cx))
5162 else {
5163 return;
5164 };
5165
5166 let reveal_strategy = action.reveal;
5167 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5168 cx.spawn(|_, mut cx| async move {
5169 let context = task_context.await?;
5170 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5171
5172 let resolved = resolved_task.resolved.as_mut()?;
5173 resolved.reveal = reveal_strategy;
5174
5175 workspace
5176 .update(&mut cx, |workspace, cx| {
5177 workspace::tasks::schedule_resolved_task(
5178 workspace,
5179 task_source_kind,
5180 resolved_task,
5181 false,
5182 cx,
5183 );
5184 })
5185 .ok()
5186 })
5187 .detach();
5188 }
5189
5190 fn find_closest_task(
5191 &mut self,
5192 cx: &mut ViewContext<Self>,
5193 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5194 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5195
5196 let ((buffer_id, row), tasks) = self
5197 .tasks
5198 .iter()
5199 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5200
5201 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5202 let tasks = Arc::new(tasks.to_owned());
5203 Some((buffer, *row, tasks))
5204 }
5205
5206 fn find_enclosing_node_task(
5207 &mut self,
5208 cx: &mut ViewContext<Self>,
5209 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5210 let snapshot = self.buffer.read(cx).snapshot(cx);
5211 let offset = self.selections.newest::<usize>(cx).head();
5212 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5213 let buffer_id = excerpt.buffer().remote_id();
5214
5215 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5216 let mut cursor = layer.node().walk();
5217
5218 while cursor.goto_first_child_for_byte(offset).is_some() {
5219 if cursor.node().end_byte() == offset {
5220 cursor.goto_next_sibling();
5221 }
5222 }
5223
5224 // Ascend to the smallest ancestor that contains the range and has a task.
5225 loop {
5226 let node = cursor.node();
5227 let node_range = node.byte_range();
5228 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5229
5230 // Check if this node contains our offset
5231 if node_range.start <= offset && node_range.end >= offset {
5232 // If it contains offset, check for task
5233 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5234 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5235 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5236 }
5237 }
5238
5239 if !cursor.goto_parent() {
5240 break;
5241 }
5242 }
5243 None
5244 }
5245
5246 fn render_run_indicator(
5247 &self,
5248 _style: &EditorStyle,
5249 is_active: bool,
5250 row: DisplayRow,
5251 cx: &mut ViewContext<Self>,
5252 ) -> IconButton {
5253 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5254 .shape(ui::IconButtonShape::Square)
5255 .icon_size(IconSize::XSmall)
5256 .icon_color(Color::Muted)
5257 .toggle_state(is_active)
5258 .on_click(cx.listener(move |editor, _e, cx| {
5259 editor.focus(cx);
5260 editor.toggle_code_actions(
5261 &ToggleCodeActions {
5262 deployed_from_indicator: Some(row),
5263 },
5264 cx,
5265 );
5266 }))
5267 }
5268
5269 #[cfg(any(test, feature = "test-support"))]
5270 pub fn context_menu_visible(&self) -> bool {
5271 self.context_menu
5272 .borrow()
5273 .as_ref()
5274 .map_or(false, |menu| menu.visible())
5275 }
5276
5277 #[cfg(feature = "test-support")]
5278 pub fn context_menu_contains_inline_completion(&self) -> bool {
5279 self.context_menu
5280 .borrow()
5281 .as_ref()
5282 .map_or(false, |menu| match menu {
5283 CodeContextMenu::Completions(menu) => {
5284 menu.entries.borrow().first().map_or(false, |entry| {
5285 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5286 })
5287 }
5288 CodeContextMenu::CodeActions(_) => false,
5289 })
5290 }
5291
5292 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5293 self.context_menu
5294 .borrow()
5295 .as_ref()
5296 .map(|menu| menu.origin(cursor_position))
5297 }
5298
5299 fn render_context_menu(
5300 &self,
5301 style: &EditorStyle,
5302 max_height_in_lines: u32,
5303 y_flipped: bool,
5304 cx: &mut ViewContext<Editor>,
5305 ) -> Option<AnyElement> {
5306 self.context_menu.borrow().as_ref().and_then(|menu| {
5307 if menu.visible() {
5308 Some(menu.render(style, max_height_in_lines, y_flipped, cx))
5309 } else {
5310 None
5311 }
5312 })
5313 }
5314
5315 fn render_context_menu_aside(
5316 &self,
5317 style: &EditorStyle,
5318 max_size: Size<Pixels>,
5319 cx: &mut ViewContext<Editor>,
5320 ) -> Option<AnyElement> {
5321 self.context_menu.borrow().as_ref().and_then(|menu| {
5322 if menu.visible() {
5323 menu.render_aside(
5324 style,
5325 max_size,
5326 self.workspace.as_ref().map(|(w, _)| w.clone()),
5327 cx,
5328 )
5329 } else {
5330 None
5331 }
5332 })
5333 }
5334
5335 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5336 cx.notify();
5337 self.completion_tasks.clear();
5338 let context_menu = self.context_menu.borrow_mut().take();
5339 if context_menu.is_some() && !self.show_inline_completions_in_menu(cx) {
5340 self.update_visible_inline_completion(cx);
5341 }
5342 context_menu
5343 }
5344
5345 fn show_snippet_choices(
5346 &mut self,
5347 choices: &Vec<String>,
5348 selection: Range<Anchor>,
5349 cx: &mut ViewContext<Self>,
5350 ) {
5351 if selection.start.buffer_id.is_none() {
5352 return;
5353 }
5354 let buffer_id = selection.start.buffer_id.unwrap();
5355 let buffer = self.buffer().read(cx).buffer(buffer_id);
5356 let id = post_inc(&mut self.next_completion_id);
5357
5358 if let Some(buffer) = buffer {
5359 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5360 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5361 ));
5362 }
5363 }
5364
5365 pub fn insert_snippet(
5366 &mut self,
5367 insertion_ranges: &[Range<usize>],
5368 snippet: Snippet,
5369 cx: &mut ViewContext<Self>,
5370 ) -> Result<()> {
5371 struct Tabstop<T> {
5372 is_end_tabstop: bool,
5373 ranges: Vec<Range<T>>,
5374 choices: Option<Vec<String>>,
5375 }
5376
5377 let tabstops = self.buffer.update(cx, |buffer, cx| {
5378 let snippet_text: Arc<str> = snippet.text.clone().into();
5379 buffer.edit(
5380 insertion_ranges
5381 .iter()
5382 .cloned()
5383 .map(|range| (range, snippet_text.clone())),
5384 Some(AutoindentMode::EachLine),
5385 cx,
5386 );
5387
5388 let snapshot = &*buffer.read(cx);
5389 let snippet = &snippet;
5390 snippet
5391 .tabstops
5392 .iter()
5393 .map(|tabstop| {
5394 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5395 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5396 });
5397 let mut tabstop_ranges = tabstop
5398 .ranges
5399 .iter()
5400 .flat_map(|tabstop_range| {
5401 let mut delta = 0_isize;
5402 insertion_ranges.iter().map(move |insertion_range| {
5403 let insertion_start = insertion_range.start as isize + delta;
5404 delta +=
5405 snippet.text.len() as isize - insertion_range.len() as isize;
5406
5407 let start = ((insertion_start + tabstop_range.start) as usize)
5408 .min(snapshot.len());
5409 let end = ((insertion_start + tabstop_range.end) as usize)
5410 .min(snapshot.len());
5411 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5412 })
5413 })
5414 .collect::<Vec<_>>();
5415 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5416
5417 Tabstop {
5418 is_end_tabstop,
5419 ranges: tabstop_ranges,
5420 choices: tabstop.choices.clone(),
5421 }
5422 })
5423 .collect::<Vec<_>>()
5424 });
5425 if let Some(tabstop) = tabstops.first() {
5426 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5427 s.select_ranges(tabstop.ranges.iter().cloned());
5428 });
5429
5430 if let Some(choices) = &tabstop.choices {
5431 if let Some(selection) = tabstop.ranges.first() {
5432 self.show_snippet_choices(choices, selection.clone(), cx)
5433 }
5434 }
5435
5436 // If we're already at the last tabstop and it's at the end of the snippet,
5437 // we're done, we don't need to keep the state around.
5438 if !tabstop.is_end_tabstop {
5439 let choices = tabstops
5440 .iter()
5441 .map(|tabstop| tabstop.choices.clone())
5442 .collect();
5443
5444 let ranges = tabstops
5445 .into_iter()
5446 .map(|tabstop| tabstop.ranges)
5447 .collect::<Vec<_>>();
5448
5449 self.snippet_stack.push(SnippetState {
5450 active_index: 0,
5451 ranges,
5452 choices,
5453 });
5454 }
5455
5456 // Check whether the just-entered snippet ends with an auto-closable bracket.
5457 if self.autoclose_regions.is_empty() {
5458 let snapshot = self.buffer.read(cx).snapshot(cx);
5459 for selection in &mut self.selections.all::<Point>(cx) {
5460 let selection_head = selection.head();
5461 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5462 continue;
5463 };
5464
5465 let mut bracket_pair = None;
5466 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5467 let prev_chars = snapshot
5468 .reversed_chars_at(selection_head)
5469 .collect::<String>();
5470 for (pair, enabled) in scope.brackets() {
5471 if enabled
5472 && pair.close
5473 && prev_chars.starts_with(pair.start.as_str())
5474 && next_chars.starts_with(pair.end.as_str())
5475 {
5476 bracket_pair = Some(pair.clone());
5477 break;
5478 }
5479 }
5480 if let Some(pair) = bracket_pair {
5481 let start = snapshot.anchor_after(selection_head);
5482 let end = snapshot.anchor_after(selection_head);
5483 self.autoclose_regions.push(AutocloseRegion {
5484 selection_id: selection.id,
5485 range: start..end,
5486 pair,
5487 });
5488 }
5489 }
5490 }
5491 }
5492 Ok(())
5493 }
5494
5495 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5496 self.move_to_snippet_tabstop(Bias::Right, cx)
5497 }
5498
5499 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5500 self.move_to_snippet_tabstop(Bias::Left, cx)
5501 }
5502
5503 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5504 if let Some(mut snippet) = self.snippet_stack.pop() {
5505 match bias {
5506 Bias::Left => {
5507 if snippet.active_index > 0 {
5508 snippet.active_index -= 1;
5509 } else {
5510 self.snippet_stack.push(snippet);
5511 return false;
5512 }
5513 }
5514 Bias::Right => {
5515 if snippet.active_index + 1 < snippet.ranges.len() {
5516 snippet.active_index += 1;
5517 } else {
5518 self.snippet_stack.push(snippet);
5519 return false;
5520 }
5521 }
5522 }
5523 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5524 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5525 s.select_anchor_ranges(current_ranges.iter().cloned())
5526 });
5527
5528 if let Some(choices) = &snippet.choices[snippet.active_index] {
5529 if let Some(selection) = current_ranges.first() {
5530 self.show_snippet_choices(&choices, selection.clone(), cx);
5531 }
5532 }
5533
5534 // If snippet state is not at the last tabstop, push it back on the stack
5535 if snippet.active_index + 1 < snippet.ranges.len() {
5536 self.snippet_stack.push(snippet);
5537 }
5538 return true;
5539 }
5540 }
5541
5542 false
5543 }
5544
5545 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5546 self.transact(cx, |this, cx| {
5547 this.select_all(&SelectAll, cx);
5548 this.insert("", cx);
5549 });
5550 }
5551
5552 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5553 self.transact(cx, |this, cx| {
5554 this.select_autoclose_pair(cx);
5555 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5556 if !this.linked_edit_ranges.is_empty() {
5557 let selections = this.selections.all::<MultiBufferPoint>(cx);
5558 let snapshot = this.buffer.read(cx).snapshot(cx);
5559
5560 for selection in selections.iter() {
5561 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5562 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5563 if selection_start.buffer_id != selection_end.buffer_id {
5564 continue;
5565 }
5566 if let Some(ranges) =
5567 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5568 {
5569 for (buffer, entries) in ranges {
5570 linked_ranges.entry(buffer).or_default().extend(entries);
5571 }
5572 }
5573 }
5574 }
5575
5576 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5577 if !this.selections.line_mode {
5578 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5579 for selection in &mut selections {
5580 if selection.is_empty() {
5581 let old_head = selection.head();
5582 let mut new_head =
5583 movement::left(&display_map, old_head.to_display_point(&display_map))
5584 .to_point(&display_map);
5585 if let Some((buffer, line_buffer_range)) = display_map
5586 .buffer_snapshot
5587 .buffer_line_for_row(MultiBufferRow(old_head.row))
5588 {
5589 let indent_size =
5590 buffer.indent_size_for_line(line_buffer_range.start.row);
5591 let indent_len = match indent_size.kind {
5592 IndentKind::Space => {
5593 buffer.settings_at(line_buffer_range.start, cx).tab_size
5594 }
5595 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5596 };
5597 if old_head.column <= indent_size.len && old_head.column > 0 {
5598 let indent_len = indent_len.get();
5599 new_head = cmp::min(
5600 new_head,
5601 MultiBufferPoint::new(
5602 old_head.row,
5603 ((old_head.column - 1) / indent_len) * indent_len,
5604 ),
5605 );
5606 }
5607 }
5608
5609 selection.set_head(new_head, SelectionGoal::None);
5610 }
5611 }
5612 }
5613
5614 this.signature_help_state.set_backspace_pressed(true);
5615 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5616 this.insert("", cx);
5617 let empty_str: Arc<str> = Arc::from("");
5618 for (buffer, edits) in linked_ranges {
5619 let snapshot = buffer.read(cx).snapshot();
5620 use text::ToPoint as TP;
5621
5622 let edits = edits
5623 .into_iter()
5624 .map(|range| {
5625 let end_point = TP::to_point(&range.end, &snapshot);
5626 let mut start_point = TP::to_point(&range.start, &snapshot);
5627
5628 if end_point == start_point {
5629 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5630 .saturating_sub(1);
5631 start_point =
5632 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5633 };
5634
5635 (start_point..end_point, empty_str.clone())
5636 })
5637 .sorted_by_key(|(range, _)| range.start)
5638 .collect::<Vec<_>>();
5639 buffer.update(cx, |this, cx| {
5640 this.edit(edits, None, cx);
5641 })
5642 }
5643 this.refresh_inline_completion(true, false, cx);
5644 linked_editing_ranges::refresh_linked_ranges(this, cx);
5645 });
5646 }
5647
5648 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5649 self.transact(cx, |this, cx| {
5650 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5651 let line_mode = s.line_mode;
5652 s.move_with(|map, selection| {
5653 if selection.is_empty() && !line_mode {
5654 let cursor = movement::right(map, selection.head());
5655 selection.end = cursor;
5656 selection.reversed = true;
5657 selection.goal = SelectionGoal::None;
5658 }
5659 })
5660 });
5661 this.insert("", cx);
5662 this.refresh_inline_completion(true, false, cx);
5663 });
5664 }
5665
5666 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5667 if self.move_to_prev_snippet_tabstop(cx) {
5668 return;
5669 }
5670
5671 self.outdent(&Outdent, cx);
5672 }
5673
5674 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5675 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5676 return;
5677 }
5678
5679 let mut selections = self.selections.all_adjusted(cx);
5680 let buffer = self.buffer.read(cx);
5681 let snapshot = buffer.snapshot(cx);
5682 let rows_iter = selections.iter().map(|s| s.head().row);
5683 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5684
5685 let mut edits = Vec::new();
5686 let mut prev_edited_row = 0;
5687 let mut row_delta = 0;
5688 for selection in &mut selections {
5689 if selection.start.row != prev_edited_row {
5690 row_delta = 0;
5691 }
5692 prev_edited_row = selection.end.row;
5693
5694 // If the selection is non-empty, then increase the indentation of the selected lines.
5695 if !selection.is_empty() {
5696 row_delta =
5697 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5698 continue;
5699 }
5700
5701 // If the selection is empty and the cursor is in the leading whitespace before the
5702 // suggested indentation, then auto-indent the line.
5703 let cursor = selection.head();
5704 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5705 if let Some(suggested_indent) =
5706 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5707 {
5708 if cursor.column < suggested_indent.len
5709 && cursor.column <= current_indent.len
5710 && current_indent.len <= suggested_indent.len
5711 {
5712 selection.start = Point::new(cursor.row, suggested_indent.len);
5713 selection.end = selection.start;
5714 if row_delta == 0 {
5715 edits.extend(Buffer::edit_for_indent_size_adjustment(
5716 cursor.row,
5717 current_indent,
5718 suggested_indent,
5719 ));
5720 row_delta = suggested_indent.len - current_indent.len;
5721 }
5722 continue;
5723 }
5724 }
5725
5726 // Otherwise, insert a hard or soft tab.
5727 let settings = buffer.settings_at(cursor, cx);
5728 let tab_size = if settings.hard_tabs {
5729 IndentSize::tab()
5730 } else {
5731 let tab_size = settings.tab_size.get();
5732 let char_column = snapshot
5733 .text_for_range(Point::new(cursor.row, 0)..cursor)
5734 .flat_map(str::chars)
5735 .count()
5736 + row_delta as usize;
5737 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5738 IndentSize::spaces(chars_to_next_tab_stop)
5739 };
5740 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5741 selection.end = selection.start;
5742 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5743 row_delta += tab_size.len;
5744 }
5745
5746 self.transact(cx, |this, cx| {
5747 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5748 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5749 this.refresh_inline_completion(true, false, cx);
5750 });
5751 }
5752
5753 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5754 if self.read_only(cx) {
5755 return;
5756 }
5757 let mut selections = self.selections.all::<Point>(cx);
5758 let mut prev_edited_row = 0;
5759 let mut row_delta = 0;
5760 let mut edits = Vec::new();
5761 let buffer = self.buffer.read(cx);
5762 let snapshot = buffer.snapshot(cx);
5763 for selection in &mut selections {
5764 if selection.start.row != prev_edited_row {
5765 row_delta = 0;
5766 }
5767 prev_edited_row = selection.end.row;
5768
5769 row_delta =
5770 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5771 }
5772
5773 self.transact(cx, |this, cx| {
5774 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5775 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5776 });
5777 }
5778
5779 fn indent_selection(
5780 buffer: &MultiBuffer,
5781 snapshot: &MultiBufferSnapshot,
5782 selection: &mut Selection<Point>,
5783 edits: &mut Vec<(Range<Point>, String)>,
5784 delta_for_start_row: u32,
5785 cx: &AppContext,
5786 ) -> u32 {
5787 let settings = buffer.settings_at(selection.start, cx);
5788 let tab_size = settings.tab_size.get();
5789 let indent_kind = if settings.hard_tabs {
5790 IndentKind::Tab
5791 } else {
5792 IndentKind::Space
5793 };
5794 let mut start_row = selection.start.row;
5795 let mut end_row = selection.end.row + 1;
5796
5797 // If a selection ends at the beginning of a line, don't indent
5798 // that last line.
5799 if selection.end.column == 0 && selection.end.row > selection.start.row {
5800 end_row -= 1;
5801 }
5802
5803 // Avoid re-indenting a row that has already been indented by a
5804 // previous selection, but still update this selection's column
5805 // to reflect that indentation.
5806 if delta_for_start_row > 0 {
5807 start_row += 1;
5808 selection.start.column += delta_for_start_row;
5809 if selection.end.row == selection.start.row {
5810 selection.end.column += delta_for_start_row;
5811 }
5812 }
5813
5814 let mut delta_for_end_row = 0;
5815 let has_multiple_rows = start_row + 1 != end_row;
5816 for row in start_row..end_row {
5817 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5818 let indent_delta = match (current_indent.kind, indent_kind) {
5819 (IndentKind::Space, IndentKind::Space) => {
5820 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5821 IndentSize::spaces(columns_to_next_tab_stop)
5822 }
5823 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5824 (_, IndentKind::Tab) => IndentSize::tab(),
5825 };
5826
5827 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5828 0
5829 } else {
5830 selection.start.column
5831 };
5832 let row_start = Point::new(row, start);
5833 edits.push((
5834 row_start..row_start,
5835 indent_delta.chars().collect::<String>(),
5836 ));
5837
5838 // Update this selection's endpoints to reflect the indentation.
5839 if row == selection.start.row {
5840 selection.start.column += indent_delta.len;
5841 }
5842 if row == selection.end.row {
5843 selection.end.column += indent_delta.len;
5844 delta_for_end_row = indent_delta.len;
5845 }
5846 }
5847
5848 if selection.start.row == selection.end.row {
5849 delta_for_start_row + delta_for_end_row
5850 } else {
5851 delta_for_end_row
5852 }
5853 }
5854
5855 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5856 if self.read_only(cx) {
5857 return;
5858 }
5859 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5860 let selections = self.selections.all::<Point>(cx);
5861 let mut deletion_ranges = Vec::new();
5862 let mut last_outdent = None;
5863 {
5864 let buffer = self.buffer.read(cx);
5865 let snapshot = buffer.snapshot(cx);
5866 for selection in &selections {
5867 let settings = buffer.settings_at(selection.start, cx);
5868 let tab_size = settings.tab_size.get();
5869 let mut rows = selection.spanned_rows(false, &display_map);
5870
5871 // Avoid re-outdenting a row that has already been outdented by a
5872 // previous selection.
5873 if let Some(last_row) = last_outdent {
5874 if last_row == rows.start {
5875 rows.start = rows.start.next_row();
5876 }
5877 }
5878 let has_multiple_rows = rows.len() > 1;
5879 for row in rows.iter_rows() {
5880 let indent_size = snapshot.indent_size_for_line(row);
5881 if indent_size.len > 0 {
5882 let deletion_len = match indent_size.kind {
5883 IndentKind::Space => {
5884 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5885 if columns_to_prev_tab_stop == 0 {
5886 tab_size
5887 } else {
5888 columns_to_prev_tab_stop
5889 }
5890 }
5891 IndentKind::Tab => 1,
5892 };
5893 let start = if has_multiple_rows
5894 || deletion_len > selection.start.column
5895 || indent_size.len < selection.start.column
5896 {
5897 0
5898 } else {
5899 selection.start.column - deletion_len
5900 };
5901 deletion_ranges.push(
5902 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5903 );
5904 last_outdent = Some(row);
5905 }
5906 }
5907 }
5908 }
5909
5910 self.transact(cx, |this, cx| {
5911 this.buffer.update(cx, |buffer, cx| {
5912 let empty_str: Arc<str> = Arc::default();
5913 buffer.edit(
5914 deletion_ranges
5915 .into_iter()
5916 .map(|range| (range, empty_str.clone())),
5917 None,
5918 cx,
5919 );
5920 });
5921 let selections = this.selections.all::<usize>(cx);
5922 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5923 });
5924 }
5925
5926 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5927 if self.read_only(cx) {
5928 return;
5929 }
5930 let selections = self
5931 .selections
5932 .all::<usize>(cx)
5933 .into_iter()
5934 .map(|s| s.range());
5935
5936 self.transact(cx, |this, cx| {
5937 this.buffer.update(cx, |buffer, cx| {
5938 buffer.autoindent_ranges(selections, cx);
5939 });
5940 let selections = this.selections.all::<usize>(cx);
5941 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5942 });
5943 }
5944
5945 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5946 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5947 let selections = self.selections.all::<Point>(cx);
5948
5949 let mut new_cursors = Vec::new();
5950 let mut edit_ranges = Vec::new();
5951 let mut selections = selections.iter().peekable();
5952 while let Some(selection) = selections.next() {
5953 let mut rows = selection.spanned_rows(false, &display_map);
5954 let goal_display_column = selection.head().to_display_point(&display_map).column();
5955
5956 // Accumulate contiguous regions of rows that we want to delete.
5957 while let Some(next_selection) = selections.peek() {
5958 let next_rows = next_selection.spanned_rows(false, &display_map);
5959 if next_rows.start <= rows.end {
5960 rows.end = next_rows.end;
5961 selections.next().unwrap();
5962 } else {
5963 break;
5964 }
5965 }
5966
5967 let buffer = &display_map.buffer_snapshot;
5968 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5969 let edit_end;
5970 let cursor_buffer_row;
5971 if buffer.max_point().row >= rows.end.0 {
5972 // If there's a line after the range, delete the \n from the end of the row range
5973 // and position the cursor on the next line.
5974 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5975 cursor_buffer_row = rows.end;
5976 } else {
5977 // If there isn't a line after the range, delete the \n from the line before the
5978 // start of the row range and position the cursor there.
5979 edit_start = edit_start.saturating_sub(1);
5980 edit_end = buffer.len();
5981 cursor_buffer_row = rows.start.previous_row();
5982 }
5983
5984 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5985 *cursor.column_mut() =
5986 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5987
5988 new_cursors.push((
5989 selection.id,
5990 buffer.anchor_after(cursor.to_point(&display_map)),
5991 ));
5992 edit_ranges.push(edit_start..edit_end);
5993 }
5994
5995 self.transact(cx, |this, cx| {
5996 let buffer = this.buffer.update(cx, |buffer, cx| {
5997 let empty_str: Arc<str> = Arc::default();
5998 buffer.edit(
5999 edit_ranges
6000 .into_iter()
6001 .map(|range| (range, empty_str.clone())),
6002 None,
6003 cx,
6004 );
6005 buffer.snapshot(cx)
6006 });
6007 let new_selections = new_cursors
6008 .into_iter()
6009 .map(|(id, cursor)| {
6010 let cursor = cursor.to_point(&buffer);
6011 Selection {
6012 id,
6013 start: cursor,
6014 end: cursor,
6015 reversed: false,
6016 goal: SelectionGoal::None,
6017 }
6018 })
6019 .collect();
6020
6021 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6022 s.select(new_selections);
6023 });
6024 });
6025 }
6026
6027 pub fn join_lines_impl(&mut self, insert_whitespace: bool, cx: &mut ViewContext<Self>) {
6028 if self.read_only(cx) {
6029 return;
6030 }
6031 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6032 for selection in self.selections.all::<Point>(cx) {
6033 let start = MultiBufferRow(selection.start.row);
6034 // Treat single line selections as if they include the next line. Otherwise this action
6035 // would do nothing for single line selections individual cursors.
6036 let end = if selection.start.row == selection.end.row {
6037 MultiBufferRow(selection.start.row + 1)
6038 } else {
6039 MultiBufferRow(selection.end.row)
6040 };
6041
6042 if let Some(last_row_range) = row_ranges.last_mut() {
6043 if start <= last_row_range.end {
6044 last_row_range.end = end;
6045 continue;
6046 }
6047 }
6048 row_ranges.push(start..end);
6049 }
6050
6051 let snapshot = self.buffer.read(cx).snapshot(cx);
6052 let mut cursor_positions = Vec::new();
6053 for row_range in &row_ranges {
6054 let anchor = snapshot.anchor_before(Point::new(
6055 row_range.end.previous_row().0,
6056 snapshot.line_len(row_range.end.previous_row()),
6057 ));
6058 cursor_positions.push(anchor..anchor);
6059 }
6060
6061 self.transact(cx, |this, cx| {
6062 for row_range in row_ranges.into_iter().rev() {
6063 for row in row_range.iter_rows().rev() {
6064 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6065 let next_line_row = row.next_row();
6066 let indent = snapshot.indent_size_for_line(next_line_row);
6067 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6068
6069 let replace =
6070 if snapshot.line_len(next_line_row) > indent.len && insert_whitespace {
6071 " "
6072 } else {
6073 ""
6074 };
6075
6076 this.buffer.update(cx, |buffer, cx| {
6077 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6078 });
6079 }
6080 }
6081
6082 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6083 s.select_anchor_ranges(cursor_positions)
6084 });
6085 });
6086 }
6087
6088 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6089 self.join_lines_impl(true, cx);
6090 }
6091
6092 pub fn sort_lines_case_sensitive(
6093 &mut self,
6094 _: &SortLinesCaseSensitive,
6095 cx: &mut ViewContext<Self>,
6096 ) {
6097 self.manipulate_lines(cx, |lines| lines.sort())
6098 }
6099
6100 pub fn sort_lines_case_insensitive(
6101 &mut self,
6102 _: &SortLinesCaseInsensitive,
6103 cx: &mut ViewContext<Self>,
6104 ) {
6105 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6106 }
6107
6108 pub fn unique_lines_case_insensitive(
6109 &mut self,
6110 _: &UniqueLinesCaseInsensitive,
6111 cx: &mut ViewContext<Self>,
6112 ) {
6113 self.manipulate_lines(cx, |lines| {
6114 let mut seen = HashSet::default();
6115 lines.retain(|line| seen.insert(line.to_lowercase()));
6116 })
6117 }
6118
6119 pub fn unique_lines_case_sensitive(
6120 &mut self,
6121 _: &UniqueLinesCaseSensitive,
6122 cx: &mut ViewContext<Self>,
6123 ) {
6124 self.manipulate_lines(cx, |lines| {
6125 let mut seen = HashSet::default();
6126 lines.retain(|line| seen.insert(*line));
6127 })
6128 }
6129
6130 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6131 let mut revert_changes = HashMap::default();
6132 let snapshot = self.snapshot(cx);
6133 for hunk in snapshot
6134 .hunks_for_ranges(Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter())
6135 {
6136 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6137 }
6138 if !revert_changes.is_empty() {
6139 self.transact(cx, |editor, cx| {
6140 editor.revert(revert_changes, cx);
6141 });
6142 }
6143 }
6144
6145 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6146 let Some(project) = self.project.clone() else {
6147 return;
6148 };
6149 self.reload(project, cx).detach_and_notify_err(cx);
6150 }
6151
6152 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6153 let selections = self.selections.all(cx).into_iter().map(|s| s.range());
6154 self.revert_hunks_in_ranges(selections, cx);
6155 }
6156
6157 fn revert_hunks_in_ranges(
6158 &mut self,
6159 ranges: impl Iterator<Item = Range<Point>>,
6160 cx: &mut ViewContext<Editor>,
6161 ) {
6162 let mut revert_changes = HashMap::default();
6163 let snapshot = self.snapshot(cx);
6164 for hunk in &snapshot.hunks_for_ranges(ranges) {
6165 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6166 }
6167 if !revert_changes.is_empty() {
6168 self.transact(cx, |editor, cx| {
6169 editor.revert(revert_changes, cx);
6170 });
6171 }
6172 }
6173
6174 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6175 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6176 let project_path = buffer.read(cx).project_path(cx)?;
6177 let project = self.project.as_ref()?.read(cx);
6178 let entry = project.entry_for_path(&project_path, cx)?;
6179 let parent = match &entry.canonical_path {
6180 Some(canonical_path) => canonical_path.to_path_buf(),
6181 None => project.absolute_path(&project_path, cx)?,
6182 }
6183 .parent()?
6184 .to_path_buf();
6185 Some(parent)
6186 }) {
6187 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6188 }
6189 }
6190
6191 pub fn prepare_revert_change(
6192 &self,
6193 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6194 hunk: &MultiBufferDiffHunk,
6195 cx: &mut WindowContext,
6196 ) -> Option<()> {
6197 let buffer = self.buffer.read(cx);
6198 let change_set = buffer.change_set_for(hunk.buffer_id)?;
6199 let buffer = buffer.buffer(hunk.buffer_id)?;
6200 let buffer = buffer.read(cx);
6201 let original_text = change_set
6202 .read(cx)
6203 .base_text
6204 .as_ref()?
6205 .as_rope()
6206 .slice(hunk.diff_base_byte_range.clone());
6207 let buffer_snapshot = buffer.snapshot();
6208 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6209 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6210 probe
6211 .0
6212 .start
6213 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6214 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6215 }) {
6216 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6217 Some(())
6218 } else {
6219 None
6220 }
6221 }
6222
6223 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6224 self.manipulate_lines(cx, |lines| lines.reverse())
6225 }
6226
6227 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6228 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6229 }
6230
6231 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6232 where
6233 Fn: FnMut(&mut Vec<&str>),
6234 {
6235 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6236 let buffer = self.buffer.read(cx).snapshot(cx);
6237
6238 let mut edits = Vec::new();
6239
6240 let selections = self.selections.all::<Point>(cx);
6241 let mut selections = selections.iter().peekable();
6242 let mut contiguous_row_selections = Vec::new();
6243 let mut new_selections = Vec::new();
6244 let mut added_lines = 0;
6245 let mut removed_lines = 0;
6246
6247 while let Some(selection) = selections.next() {
6248 let (start_row, end_row) = consume_contiguous_rows(
6249 &mut contiguous_row_selections,
6250 selection,
6251 &display_map,
6252 &mut selections,
6253 );
6254
6255 let start_point = Point::new(start_row.0, 0);
6256 let end_point = Point::new(
6257 end_row.previous_row().0,
6258 buffer.line_len(end_row.previous_row()),
6259 );
6260 let text = buffer
6261 .text_for_range(start_point..end_point)
6262 .collect::<String>();
6263
6264 let mut lines = text.split('\n').collect_vec();
6265
6266 let lines_before = lines.len();
6267 callback(&mut lines);
6268 let lines_after = lines.len();
6269
6270 edits.push((start_point..end_point, lines.join("\n")));
6271
6272 // Selections must change based on added and removed line count
6273 let start_row =
6274 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6275 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6276 new_selections.push(Selection {
6277 id: selection.id,
6278 start: start_row,
6279 end: end_row,
6280 goal: SelectionGoal::None,
6281 reversed: selection.reversed,
6282 });
6283
6284 if lines_after > lines_before {
6285 added_lines += lines_after - lines_before;
6286 } else if lines_before > lines_after {
6287 removed_lines += lines_before - lines_after;
6288 }
6289 }
6290
6291 self.transact(cx, |this, cx| {
6292 let buffer = this.buffer.update(cx, |buffer, cx| {
6293 buffer.edit(edits, None, cx);
6294 buffer.snapshot(cx)
6295 });
6296
6297 // Recalculate offsets on newly edited buffer
6298 let new_selections = new_selections
6299 .iter()
6300 .map(|s| {
6301 let start_point = Point::new(s.start.0, 0);
6302 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6303 Selection {
6304 id: s.id,
6305 start: buffer.point_to_offset(start_point),
6306 end: buffer.point_to_offset(end_point),
6307 goal: s.goal,
6308 reversed: s.reversed,
6309 }
6310 })
6311 .collect();
6312
6313 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6314 s.select(new_selections);
6315 });
6316
6317 this.request_autoscroll(Autoscroll::fit(), cx);
6318 });
6319 }
6320
6321 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6322 self.manipulate_text(cx, |text| text.to_uppercase())
6323 }
6324
6325 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6326 self.manipulate_text(cx, |text| text.to_lowercase())
6327 }
6328
6329 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6330 self.manipulate_text(cx, |text| {
6331 text.split('\n')
6332 .map(|line| line.to_case(Case::Title))
6333 .join("\n")
6334 })
6335 }
6336
6337 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6338 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6339 }
6340
6341 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6342 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6343 }
6344
6345 pub fn convert_to_upper_camel_case(
6346 &mut self,
6347 _: &ConvertToUpperCamelCase,
6348 cx: &mut ViewContext<Self>,
6349 ) {
6350 self.manipulate_text(cx, |text| {
6351 text.split('\n')
6352 .map(|line| line.to_case(Case::UpperCamel))
6353 .join("\n")
6354 })
6355 }
6356
6357 pub fn convert_to_lower_camel_case(
6358 &mut self,
6359 _: &ConvertToLowerCamelCase,
6360 cx: &mut ViewContext<Self>,
6361 ) {
6362 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6363 }
6364
6365 pub fn convert_to_opposite_case(
6366 &mut self,
6367 _: &ConvertToOppositeCase,
6368 cx: &mut ViewContext<Self>,
6369 ) {
6370 self.manipulate_text(cx, |text| {
6371 text.chars()
6372 .fold(String::with_capacity(text.len()), |mut t, c| {
6373 if c.is_uppercase() {
6374 t.extend(c.to_lowercase());
6375 } else {
6376 t.extend(c.to_uppercase());
6377 }
6378 t
6379 })
6380 })
6381 }
6382
6383 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6384 where
6385 Fn: FnMut(&str) -> String,
6386 {
6387 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6388 let buffer = self.buffer.read(cx).snapshot(cx);
6389
6390 let mut new_selections = Vec::new();
6391 let mut edits = Vec::new();
6392 let mut selection_adjustment = 0i32;
6393
6394 for selection in self.selections.all::<usize>(cx) {
6395 let selection_is_empty = selection.is_empty();
6396
6397 let (start, end) = if selection_is_empty {
6398 let word_range = movement::surrounding_word(
6399 &display_map,
6400 selection.start.to_display_point(&display_map),
6401 );
6402 let start = word_range.start.to_offset(&display_map, Bias::Left);
6403 let end = word_range.end.to_offset(&display_map, Bias::Left);
6404 (start, end)
6405 } else {
6406 (selection.start, selection.end)
6407 };
6408
6409 let text = buffer.text_for_range(start..end).collect::<String>();
6410 let old_length = text.len() as i32;
6411 let text = callback(&text);
6412
6413 new_selections.push(Selection {
6414 start: (start as i32 - selection_adjustment) as usize,
6415 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6416 goal: SelectionGoal::None,
6417 ..selection
6418 });
6419
6420 selection_adjustment += old_length - text.len() as i32;
6421
6422 edits.push((start..end, text));
6423 }
6424
6425 self.transact(cx, |this, cx| {
6426 this.buffer.update(cx, |buffer, cx| {
6427 buffer.edit(edits, None, cx);
6428 });
6429
6430 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6431 s.select(new_selections);
6432 });
6433
6434 this.request_autoscroll(Autoscroll::fit(), cx);
6435 });
6436 }
6437
6438 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6439 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6440 let buffer = &display_map.buffer_snapshot;
6441 let selections = self.selections.all::<Point>(cx);
6442
6443 let mut edits = Vec::new();
6444 let mut selections_iter = selections.iter().peekable();
6445 while let Some(selection) = selections_iter.next() {
6446 let mut rows = selection.spanned_rows(false, &display_map);
6447 // duplicate line-wise
6448 if whole_lines || selection.start == selection.end {
6449 // Avoid duplicating the same lines twice.
6450 while let Some(next_selection) = selections_iter.peek() {
6451 let next_rows = next_selection.spanned_rows(false, &display_map);
6452 if next_rows.start < rows.end {
6453 rows.end = next_rows.end;
6454 selections_iter.next().unwrap();
6455 } else {
6456 break;
6457 }
6458 }
6459
6460 // Copy the text from the selected row region and splice it either at the start
6461 // or end of the region.
6462 let start = Point::new(rows.start.0, 0);
6463 let end = Point::new(
6464 rows.end.previous_row().0,
6465 buffer.line_len(rows.end.previous_row()),
6466 );
6467 let text = buffer
6468 .text_for_range(start..end)
6469 .chain(Some("\n"))
6470 .collect::<String>();
6471 let insert_location = if upwards {
6472 Point::new(rows.end.0, 0)
6473 } else {
6474 start
6475 };
6476 edits.push((insert_location..insert_location, text));
6477 } else {
6478 // duplicate character-wise
6479 let start = selection.start;
6480 let end = selection.end;
6481 let text = buffer.text_for_range(start..end).collect::<String>();
6482 edits.push((selection.end..selection.end, text));
6483 }
6484 }
6485
6486 self.transact(cx, |this, cx| {
6487 this.buffer.update(cx, |buffer, cx| {
6488 buffer.edit(edits, None, cx);
6489 });
6490
6491 this.request_autoscroll(Autoscroll::fit(), cx);
6492 });
6493 }
6494
6495 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6496 self.duplicate(true, true, cx);
6497 }
6498
6499 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6500 self.duplicate(false, true, cx);
6501 }
6502
6503 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6504 self.duplicate(false, false, cx);
6505 }
6506
6507 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6508 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6509 let buffer = self.buffer.read(cx).snapshot(cx);
6510
6511 let mut edits = Vec::new();
6512 let mut unfold_ranges = Vec::new();
6513 let mut refold_creases = Vec::new();
6514
6515 let selections = self.selections.all::<Point>(cx);
6516 let mut selections = selections.iter().peekable();
6517 let mut contiguous_row_selections = Vec::new();
6518 let mut new_selections = Vec::new();
6519
6520 while let Some(selection) = selections.next() {
6521 // Find all the selections that span a contiguous row range
6522 let (start_row, end_row) = consume_contiguous_rows(
6523 &mut contiguous_row_selections,
6524 selection,
6525 &display_map,
6526 &mut selections,
6527 );
6528
6529 // Move the text spanned by the row range to be before the line preceding the row range
6530 if start_row.0 > 0 {
6531 let range_to_move = Point::new(
6532 start_row.previous_row().0,
6533 buffer.line_len(start_row.previous_row()),
6534 )
6535 ..Point::new(
6536 end_row.previous_row().0,
6537 buffer.line_len(end_row.previous_row()),
6538 );
6539 let insertion_point = display_map
6540 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6541 .0;
6542
6543 // Don't move lines across excerpts
6544 if buffer
6545 .excerpt_containing(insertion_point..range_to_move.end)
6546 .is_some()
6547 {
6548 let text = buffer
6549 .text_for_range(range_to_move.clone())
6550 .flat_map(|s| s.chars())
6551 .skip(1)
6552 .chain(['\n'])
6553 .collect::<String>();
6554
6555 edits.push((
6556 buffer.anchor_after(range_to_move.start)
6557 ..buffer.anchor_before(range_to_move.end),
6558 String::new(),
6559 ));
6560 let insertion_anchor = buffer.anchor_after(insertion_point);
6561 edits.push((insertion_anchor..insertion_anchor, text));
6562
6563 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6564
6565 // Move selections up
6566 new_selections.extend(contiguous_row_selections.drain(..).map(
6567 |mut selection| {
6568 selection.start.row -= row_delta;
6569 selection.end.row -= row_delta;
6570 selection
6571 },
6572 ));
6573
6574 // Move folds up
6575 unfold_ranges.push(range_to_move.clone());
6576 for fold in display_map.folds_in_range(
6577 buffer.anchor_before(range_to_move.start)
6578 ..buffer.anchor_after(range_to_move.end),
6579 ) {
6580 let mut start = fold.range.start.to_point(&buffer);
6581 let mut end = fold.range.end.to_point(&buffer);
6582 start.row -= row_delta;
6583 end.row -= row_delta;
6584 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6585 }
6586 }
6587 }
6588
6589 // If we didn't move line(s), preserve the existing selections
6590 new_selections.append(&mut contiguous_row_selections);
6591 }
6592
6593 self.transact(cx, |this, cx| {
6594 this.unfold_ranges(&unfold_ranges, true, true, cx);
6595 this.buffer.update(cx, |buffer, cx| {
6596 for (range, text) in edits {
6597 buffer.edit([(range, text)], None, cx);
6598 }
6599 });
6600 this.fold_creases(refold_creases, true, cx);
6601 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6602 s.select(new_selections);
6603 })
6604 });
6605 }
6606
6607 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6608 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6609 let buffer = self.buffer.read(cx).snapshot(cx);
6610
6611 let mut edits = Vec::new();
6612 let mut unfold_ranges = Vec::new();
6613 let mut refold_creases = Vec::new();
6614
6615 let selections = self.selections.all::<Point>(cx);
6616 let mut selections = selections.iter().peekable();
6617 let mut contiguous_row_selections = Vec::new();
6618 let mut new_selections = Vec::new();
6619
6620 while let Some(selection) = selections.next() {
6621 // Find all the selections that span a contiguous row range
6622 let (start_row, end_row) = consume_contiguous_rows(
6623 &mut contiguous_row_selections,
6624 selection,
6625 &display_map,
6626 &mut selections,
6627 );
6628
6629 // Move the text spanned by the row range to be after the last line of the row range
6630 if end_row.0 <= buffer.max_point().row {
6631 let range_to_move =
6632 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6633 let insertion_point = display_map
6634 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6635 .0;
6636
6637 // Don't move lines across excerpt boundaries
6638 if buffer
6639 .excerpt_containing(range_to_move.start..insertion_point)
6640 .is_some()
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| snapshot.excerpt_ids_for_range(selection.range()))
9269 .collect::<Vec<_>>();
9270 excerpt_ids.sort();
9271 excerpt_ids.dedup();
9272 buffer.expand_excerpts(excerpt_ids, lines, direction, cx)
9273 })
9274 }
9275
9276 pub fn expand_excerpt(
9277 &mut self,
9278 excerpt: ExcerptId,
9279 direction: ExpandExcerptDirection,
9280 cx: &mut ViewContext<Self>,
9281 ) {
9282 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9283 self.buffer.update(cx, |buffer, cx| {
9284 buffer.expand_excerpts([excerpt], lines, direction, cx)
9285 })
9286 }
9287
9288 pub fn go_to_singleton_buffer_point(&mut self, point: Point, cx: &mut ViewContext<Self>) {
9289 self.go_to_singleton_buffer_range(point..point, cx);
9290 }
9291
9292 pub fn go_to_singleton_buffer_range(
9293 &mut self,
9294 range: Range<Point>,
9295 cx: &mut ViewContext<Self>,
9296 ) {
9297 let multibuffer = self.buffer().read(cx);
9298 let Some(buffer) = multibuffer.as_singleton() else {
9299 return;
9300 };
9301 let Some(start) = multibuffer.buffer_point_to_anchor(&buffer, range.start, cx) else {
9302 return;
9303 };
9304 let Some(end) = multibuffer.buffer_point_to_anchor(&buffer, range.end, cx) else {
9305 return;
9306 };
9307 self.change_selections(Some(Autoscroll::center()), cx, |s| {
9308 s.select_anchor_ranges([start..end])
9309 });
9310 }
9311
9312 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9313 self.go_to_diagnostic_impl(Direction::Next, cx)
9314 }
9315
9316 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9317 self.go_to_diagnostic_impl(Direction::Prev, cx)
9318 }
9319
9320 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9321 let buffer = self.buffer.read(cx).snapshot(cx);
9322 let selection = self.selections.newest::<usize>(cx);
9323
9324 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9325 if direction == Direction::Next {
9326 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9327 let Some(buffer_id) = popover.local_diagnostic.range.start.buffer_id else {
9328 return;
9329 };
9330 self.activate_diagnostics(
9331 buffer_id,
9332 popover.local_diagnostic.diagnostic.group_id,
9333 cx,
9334 );
9335 if let Some(active_diagnostics) = self.active_diagnostics.as_ref() {
9336 let primary_range_start = active_diagnostics.primary_range.start;
9337 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9338 let mut new_selection = s.newest_anchor().clone();
9339 new_selection.collapse_to(primary_range_start, SelectionGoal::None);
9340 s.select_anchors(vec![new_selection.clone()]);
9341 });
9342 self.refresh_inline_completion(false, true, cx);
9343 }
9344 return;
9345 }
9346 }
9347
9348 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9349 active_diagnostics
9350 .primary_range
9351 .to_offset(&buffer)
9352 .to_inclusive()
9353 });
9354 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9355 if active_primary_range.contains(&selection.head()) {
9356 *active_primary_range.start()
9357 } else {
9358 selection.head()
9359 }
9360 } else {
9361 selection.head()
9362 };
9363 let snapshot = self.snapshot(cx);
9364 loop {
9365 let mut diagnostics;
9366 if direction == Direction::Prev {
9367 diagnostics = buffer
9368 .diagnostics_in_range::<_, usize>(0..search_start)
9369 .collect::<Vec<_>>();
9370 diagnostics.reverse();
9371 } else {
9372 diagnostics = buffer
9373 .diagnostics_in_range::<_, usize>(search_start..buffer.len())
9374 .collect::<Vec<_>>();
9375 };
9376 let group = diagnostics
9377 .into_iter()
9378 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start))
9379 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9380 // be sorted in a stable way
9381 // skip until we are at current active diagnostic, if it exists
9382 .skip_while(|entry| {
9383 let is_in_range = match direction {
9384 Direction::Prev => entry.range.end > search_start,
9385 Direction::Next => entry.range.start < search_start,
9386 };
9387 is_in_range
9388 && self
9389 .active_diagnostics
9390 .as_ref()
9391 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9392 })
9393 .find_map(|entry| {
9394 if entry.diagnostic.is_primary
9395 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9396 && entry.range.start != entry.range.end
9397 // if we match with the active diagnostic, skip it
9398 && Some(entry.diagnostic.group_id)
9399 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9400 {
9401 Some((entry.range, entry.diagnostic.group_id))
9402 } else {
9403 None
9404 }
9405 });
9406
9407 if let Some((primary_range, group_id)) = group {
9408 let Some(buffer_id) = buffer.anchor_after(primary_range.start).buffer_id else {
9409 return;
9410 };
9411 self.activate_diagnostics(buffer_id, group_id, cx);
9412 if self.active_diagnostics.is_some() {
9413 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9414 s.select(vec![Selection {
9415 id: selection.id,
9416 start: primary_range.start,
9417 end: primary_range.start,
9418 reversed: false,
9419 goal: SelectionGoal::None,
9420 }]);
9421 });
9422 self.refresh_inline_completion(false, true, cx);
9423 }
9424 break;
9425 } else {
9426 // Cycle around to the start of the buffer, potentially moving back to the start of
9427 // the currently active diagnostic.
9428 active_primary_range.take();
9429 if direction == Direction::Prev {
9430 if search_start == buffer.len() {
9431 break;
9432 } else {
9433 search_start = buffer.len();
9434 }
9435 } else if search_start == 0 {
9436 break;
9437 } else {
9438 search_start = 0;
9439 }
9440 }
9441 }
9442 }
9443
9444 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9445 let snapshot = self.snapshot(cx);
9446 let selection = self.selections.newest::<Point>(cx);
9447 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9448 }
9449
9450 fn go_to_hunk_after_position(
9451 &mut self,
9452 snapshot: &EditorSnapshot,
9453 position: Point,
9454 cx: &mut ViewContext<Editor>,
9455 ) -> Option<MultiBufferDiffHunk> {
9456 let mut hunk = snapshot
9457 .buffer_snapshot
9458 .diff_hunks_in_range(position..snapshot.buffer_snapshot.max_point())
9459 .find(|hunk| hunk.row_range.start.0 > position.row);
9460 if hunk.is_none() {
9461 hunk = snapshot
9462 .buffer_snapshot
9463 .diff_hunks_in_range(Point::zero()..position)
9464 .find(|hunk| hunk.row_range.end.0 < position.row)
9465 }
9466 if let Some(hunk) = &hunk {
9467 let destination = Point::new(hunk.row_range.start.0, 0);
9468 self.unfold_ranges(&[destination..destination], false, false, cx);
9469 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9470 s.select_ranges(vec![destination..destination]);
9471 });
9472 }
9473
9474 hunk
9475 }
9476
9477 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9478 let snapshot = self.snapshot(cx);
9479 let selection = self.selections.newest::<Point>(cx);
9480 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9481 }
9482
9483 fn go_to_hunk_before_position(
9484 &mut self,
9485 snapshot: &EditorSnapshot,
9486 position: Point,
9487 cx: &mut ViewContext<Editor>,
9488 ) -> Option<MultiBufferDiffHunk> {
9489 let mut hunk = snapshot.buffer_snapshot.diff_hunk_before(position);
9490 if hunk.is_none() {
9491 hunk = snapshot.buffer_snapshot.diff_hunk_before(Point::MAX);
9492 }
9493 if let Some(hunk) = &hunk {
9494 let destination = Point::new(hunk.row_range.start.0, 0);
9495 self.unfold_ranges(&[destination..destination], false, false, cx);
9496 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9497 s.select_ranges(vec![destination..destination]);
9498 });
9499 }
9500
9501 hunk
9502 }
9503
9504 pub fn go_to_definition(
9505 &mut self,
9506 _: &GoToDefinition,
9507 cx: &mut ViewContext<Self>,
9508 ) -> Task<Result<Navigated>> {
9509 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9510 cx.spawn(|editor, mut cx| async move {
9511 if definition.await? == Navigated::Yes {
9512 return Ok(Navigated::Yes);
9513 }
9514 match editor.update(&mut cx, |editor, cx| {
9515 editor.find_all_references(&FindAllReferences, cx)
9516 })? {
9517 Some(references) => references.await,
9518 None => Ok(Navigated::No),
9519 }
9520 })
9521 }
9522
9523 pub fn go_to_declaration(
9524 &mut self,
9525 _: &GoToDeclaration,
9526 cx: &mut ViewContext<Self>,
9527 ) -> Task<Result<Navigated>> {
9528 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9529 }
9530
9531 pub fn go_to_declaration_split(
9532 &mut self,
9533 _: &GoToDeclaration,
9534 cx: &mut ViewContext<Self>,
9535 ) -> Task<Result<Navigated>> {
9536 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9537 }
9538
9539 pub fn go_to_implementation(
9540 &mut self,
9541 _: &GoToImplementation,
9542 cx: &mut ViewContext<Self>,
9543 ) -> Task<Result<Navigated>> {
9544 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9545 }
9546
9547 pub fn go_to_implementation_split(
9548 &mut self,
9549 _: &GoToImplementationSplit,
9550 cx: &mut ViewContext<Self>,
9551 ) -> Task<Result<Navigated>> {
9552 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9553 }
9554
9555 pub fn go_to_type_definition(
9556 &mut self,
9557 _: &GoToTypeDefinition,
9558 cx: &mut ViewContext<Self>,
9559 ) -> Task<Result<Navigated>> {
9560 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9561 }
9562
9563 pub fn go_to_definition_split(
9564 &mut self,
9565 _: &GoToDefinitionSplit,
9566 cx: &mut ViewContext<Self>,
9567 ) -> Task<Result<Navigated>> {
9568 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9569 }
9570
9571 pub fn go_to_type_definition_split(
9572 &mut self,
9573 _: &GoToTypeDefinitionSplit,
9574 cx: &mut ViewContext<Self>,
9575 ) -> Task<Result<Navigated>> {
9576 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9577 }
9578
9579 fn go_to_definition_of_kind(
9580 &mut self,
9581 kind: GotoDefinitionKind,
9582 split: bool,
9583 cx: &mut ViewContext<Self>,
9584 ) -> Task<Result<Navigated>> {
9585 let Some(provider) = self.semantics_provider.clone() else {
9586 return Task::ready(Ok(Navigated::No));
9587 };
9588 let head = self.selections.newest::<usize>(cx).head();
9589 let buffer = self.buffer.read(cx);
9590 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9591 text_anchor
9592 } else {
9593 return Task::ready(Ok(Navigated::No));
9594 };
9595
9596 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9597 return Task::ready(Ok(Navigated::No));
9598 };
9599
9600 cx.spawn(|editor, mut cx| async move {
9601 let definitions = definitions.await?;
9602 let navigated = editor
9603 .update(&mut cx, |editor, cx| {
9604 editor.navigate_to_hover_links(
9605 Some(kind),
9606 definitions
9607 .into_iter()
9608 .filter(|location| {
9609 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9610 })
9611 .map(HoverLink::Text)
9612 .collect::<Vec<_>>(),
9613 split,
9614 cx,
9615 )
9616 })?
9617 .await?;
9618 anyhow::Ok(navigated)
9619 })
9620 }
9621
9622 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9623 let selection = self.selections.newest_anchor();
9624 let head = selection.head();
9625 let tail = selection.tail();
9626
9627 let Some((buffer, start_position)) =
9628 self.buffer.read(cx).text_anchor_for_position(head, cx)
9629 else {
9630 return;
9631 };
9632
9633 let end_position = if head != tail {
9634 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9635 return;
9636 };
9637 Some(pos)
9638 } else {
9639 None
9640 };
9641
9642 let url_finder = cx.spawn(|editor, mut cx| async move {
9643 let url = if let Some(end_pos) = end_position {
9644 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9645 } else {
9646 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9647 };
9648
9649 if let Some(url) = url {
9650 editor.update(&mut cx, |_, cx| {
9651 cx.open_url(&url);
9652 })
9653 } else {
9654 Ok(())
9655 }
9656 });
9657
9658 url_finder.detach();
9659 }
9660
9661 pub fn open_selected_filename(&mut self, _: &OpenSelectedFilename, cx: &mut ViewContext<Self>) {
9662 let Some(workspace) = self.workspace() else {
9663 return;
9664 };
9665
9666 let position = self.selections.newest_anchor().head();
9667
9668 let Some((buffer, buffer_position)) =
9669 self.buffer.read(cx).text_anchor_for_position(position, cx)
9670 else {
9671 return;
9672 };
9673
9674 let project = self.project.clone();
9675
9676 cx.spawn(|_, mut cx| async move {
9677 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9678
9679 if let Some((_, path)) = result {
9680 workspace
9681 .update(&mut cx, |workspace, cx| {
9682 workspace.open_resolved_path(path, cx)
9683 })?
9684 .await?;
9685 }
9686 anyhow::Ok(())
9687 })
9688 .detach();
9689 }
9690
9691 pub(crate) fn navigate_to_hover_links(
9692 &mut self,
9693 kind: Option<GotoDefinitionKind>,
9694 mut definitions: Vec<HoverLink>,
9695 split: bool,
9696 cx: &mut ViewContext<Editor>,
9697 ) -> Task<Result<Navigated>> {
9698 // If there is one definition, just open it directly
9699 if definitions.len() == 1 {
9700 let definition = definitions.pop().unwrap();
9701
9702 enum TargetTaskResult {
9703 Location(Option<Location>),
9704 AlreadyNavigated,
9705 }
9706
9707 let target_task = match definition {
9708 HoverLink::Text(link) => {
9709 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9710 }
9711 HoverLink::InlayHint(lsp_location, server_id) => {
9712 let computation = self.compute_target_location(lsp_location, server_id, cx);
9713 cx.background_executor().spawn(async move {
9714 let location = computation.await?;
9715 Ok(TargetTaskResult::Location(location))
9716 })
9717 }
9718 HoverLink::Url(url) => {
9719 cx.open_url(&url);
9720 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9721 }
9722 HoverLink::File(path) => {
9723 if let Some(workspace) = self.workspace() {
9724 cx.spawn(|_, mut cx| async move {
9725 workspace
9726 .update(&mut cx, |workspace, cx| {
9727 workspace.open_resolved_path(path, cx)
9728 })?
9729 .await
9730 .map(|_| TargetTaskResult::AlreadyNavigated)
9731 })
9732 } else {
9733 Task::ready(Ok(TargetTaskResult::Location(None)))
9734 }
9735 }
9736 };
9737 cx.spawn(|editor, mut cx| async move {
9738 let target = match target_task.await.context("target resolution task")? {
9739 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9740 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9741 TargetTaskResult::Location(Some(target)) => target,
9742 };
9743
9744 editor.update(&mut cx, |editor, cx| {
9745 let Some(workspace) = editor.workspace() else {
9746 return Navigated::No;
9747 };
9748 let pane = workspace.read(cx).active_pane().clone();
9749
9750 let range = target.range.to_point(target.buffer.read(cx));
9751 let range = editor.range_for_match(&range);
9752 let range = collapse_multiline_range(range);
9753
9754 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9755 editor.go_to_singleton_buffer_range(range.clone(), cx);
9756 } else {
9757 cx.window_context().defer(move |cx| {
9758 let target_editor: View<Self> =
9759 workspace.update(cx, |workspace, cx| {
9760 let pane = if split {
9761 workspace.adjacent_pane(cx)
9762 } else {
9763 workspace.active_pane().clone()
9764 };
9765
9766 workspace.open_project_item(
9767 pane,
9768 target.buffer.clone(),
9769 true,
9770 true,
9771 cx,
9772 )
9773 });
9774 target_editor.update(cx, |target_editor, cx| {
9775 // When selecting a definition in a different buffer, disable the nav history
9776 // to avoid creating a history entry at the previous cursor location.
9777 pane.update(cx, |pane, _| pane.disable_history());
9778 target_editor.go_to_singleton_buffer_range(range, cx);
9779 pane.update(cx, |pane, _| pane.enable_history());
9780 });
9781 });
9782 }
9783 Navigated::Yes
9784 })
9785 })
9786 } else if !definitions.is_empty() {
9787 cx.spawn(|editor, mut cx| async move {
9788 let (title, location_tasks, workspace) = editor
9789 .update(&mut cx, |editor, cx| {
9790 let tab_kind = match kind {
9791 Some(GotoDefinitionKind::Implementation) => "Implementations",
9792 _ => "Definitions",
9793 };
9794 let title = definitions
9795 .iter()
9796 .find_map(|definition| match definition {
9797 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9798 let buffer = origin.buffer.read(cx);
9799 format!(
9800 "{} for {}",
9801 tab_kind,
9802 buffer
9803 .text_for_range(origin.range.clone())
9804 .collect::<String>()
9805 )
9806 }),
9807 HoverLink::InlayHint(_, _) => None,
9808 HoverLink::Url(_) => None,
9809 HoverLink::File(_) => None,
9810 })
9811 .unwrap_or(tab_kind.to_string());
9812 let location_tasks = definitions
9813 .into_iter()
9814 .map(|definition| match definition {
9815 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9816 HoverLink::InlayHint(lsp_location, server_id) => {
9817 editor.compute_target_location(lsp_location, server_id, cx)
9818 }
9819 HoverLink::Url(_) => Task::ready(Ok(None)),
9820 HoverLink::File(_) => Task::ready(Ok(None)),
9821 })
9822 .collect::<Vec<_>>();
9823 (title, location_tasks, editor.workspace().clone())
9824 })
9825 .context("location tasks preparation")?;
9826
9827 let locations = future::join_all(location_tasks)
9828 .await
9829 .into_iter()
9830 .filter_map(|location| location.transpose())
9831 .collect::<Result<_>>()
9832 .context("location tasks")?;
9833
9834 let Some(workspace) = workspace else {
9835 return Ok(Navigated::No);
9836 };
9837 let opened = workspace
9838 .update(&mut cx, |workspace, cx| {
9839 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9840 })
9841 .ok();
9842
9843 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9844 })
9845 } else {
9846 Task::ready(Ok(Navigated::No))
9847 }
9848 }
9849
9850 fn compute_target_location(
9851 &self,
9852 lsp_location: lsp::Location,
9853 server_id: LanguageServerId,
9854 cx: &mut ViewContext<Self>,
9855 ) -> Task<anyhow::Result<Option<Location>>> {
9856 let Some(project) = self.project.clone() else {
9857 return Task::ready(Ok(None));
9858 };
9859
9860 cx.spawn(move |editor, mut cx| async move {
9861 let location_task = editor.update(&mut cx, |_, cx| {
9862 project.update(cx, |project, cx| {
9863 let language_server_name = project
9864 .language_server_statuses(cx)
9865 .find(|(id, _)| server_id == *id)
9866 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9867 language_server_name.map(|language_server_name| {
9868 project.open_local_buffer_via_lsp(
9869 lsp_location.uri.clone(),
9870 server_id,
9871 language_server_name,
9872 cx,
9873 )
9874 })
9875 })
9876 })?;
9877 let location = match location_task {
9878 Some(task) => Some({
9879 let target_buffer_handle = task.await.context("open local buffer")?;
9880 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9881 let target_start = target_buffer
9882 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9883 let target_end = target_buffer
9884 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9885 target_buffer.anchor_after(target_start)
9886 ..target_buffer.anchor_before(target_end)
9887 })?;
9888 Location {
9889 buffer: target_buffer_handle,
9890 range,
9891 }
9892 }),
9893 None => None,
9894 };
9895 Ok(location)
9896 })
9897 }
9898
9899 pub fn find_all_references(
9900 &mut self,
9901 _: &FindAllReferences,
9902 cx: &mut ViewContext<Self>,
9903 ) -> Option<Task<Result<Navigated>>> {
9904 let selection = self.selections.newest::<usize>(cx);
9905 let multi_buffer = self.buffer.read(cx);
9906 let head = selection.head();
9907
9908 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9909 let head_anchor = multi_buffer_snapshot.anchor_at(
9910 head,
9911 if head < selection.tail() {
9912 Bias::Right
9913 } else {
9914 Bias::Left
9915 },
9916 );
9917
9918 match self
9919 .find_all_references_task_sources
9920 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9921 {
9922 Ok(_) => {
9923 log::info!(
9924 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9925 );
9926 return None;
9927 }
9928 Err(i) => {
9929 self.find_all_references_task_sources.insert(i, head_anchor);
9930 }
9931 }
9932
9933 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9934 let workspace = self.workspace()?;
9935 let project = workspace.read(cx).project().clone();
9936 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9937 Some(cx.spawn(|editor, mut cx| async move {
9938 let _cleanup = defer({
9939 let mut cx = cx.clone();
9940 move || {
9941 let _ = editor.update(&mut cx, |editor, _| {
9942 if let Ok(i) =
9943 editor
9944 .find_all_references_task_sources
9945 .binary_search_by(|anchor| {
9946 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9947 })
9948 {
9949 editor.find_all_references_task_sources.remove(i);
9950 }
9951 });
9952 }
9953 });
9954
9955 let locations = references.await?;
9956 if locations.is_empty() {
9957 return anyhow::Ok(Navigated::No);
9958 }
9959
9960 workspace.update(&mut cx, |workspace, cx| {
9961 let title = locations
9962 .first()
9963 .as_ref()
9964 .map(|location| {
9965 let buffer = location.buffer.read(cx);
9966 format!(
9967 "References to `{}`",
9968 buffer
9969 .text_for_range(location.range.clone())
9970 .collect::<String>()
9971 )
9972 })
9973 .unwrap();
9974 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9975 Navigated::Yes
9976 })
9977 }))
9978 }
9979
9980 /// Opens a multibuffer with the given project locations in it
9981 pub fn open_locations_in_multibuffer(
9982 workspace: &mut Workspace,
9983 mut locations: Vec<Location>,
9984 title: String,
9985 split: bool,
9986 cx: &mut ViewContext<Workspace>,
9987 ) {
9988 // If there are multiple definitions, open them in a multibuffer
9989 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9990 let mut locations = locations.into_iter().peekable();
9991 let mut ranges_to_highlight = Vec::new();
9992 let capability = workspace.project().read(cx).capability();
9993
9994 let excerpt_buffer = cx.new_model(|cx| {
9995 let mut multibuffer = MultiBuffer::new(capability);
9996 while let Some(location) = locations.next() {
9997 let buffer = location.buffer.read(cx);
9998 let mut ranges_for_buffer = Vec::new();
9999 let range = location.range.to_offset(buffer);
10000 ranges_for_buffer.push(range.clone());
10001
10002 while let Some(next_location) = locations.peek() {
10003 if next_location.buffer == location.buffer {
10004 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10005 locations.next();
10006 } else {
10007 break;
10008 }
10009 }
10010
10011 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10012 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10013 location.buffer.clone(),
10014 ranges_for_buffer,
10015 DEFAULT_MULTIBUFFER_CONTEXT,
10016 cx,
10017 ))
10018 }
10019
10020 multibuffer.with_title(title)
10021 });
10022
10023 let editor = cx.new_view(|cx| {
10024 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10025 });
10026 editor.update(cx, |editor, cx| {
10027 if let Some(first_range) = ranges_to_highlight.first() {
10028 editor.change_selections(None, cx, |selections| {
10029 selections.clear_disjoint();
10030 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10031 });
10032 }
10033 editor.highlight_background::<Self>(
10034 &ranges_to_highlight,
10035 |theme| theme.editor_highlighted_line_background,
10036 cx,
10037 );
10038 editor.register_buffers_with_language_servers(cx);
10039 });
10040
10041 let item = Box::new(editor);
10042 let item_id = item.item_id();
10043
10044 if split {
10045 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10046 } else {
10047 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10048 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10049 pane.close_current_preview_item(cx)
10050 } else {
10051 None
10052 }
10053 });
10054 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10055 }
10056 workspace.active_pane().update(cx, |pane, cx| {
10057 pane.set_preview_item_id(Some(item_id), cx);
10058 });
10059 }
10060
10061 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10062 use language::ToOffset as _;
10063
10064 let provider = self.semantics_provider.clone()?;
10065 let selection = self.selections.newest_anchor().clone();
10066 let (cursor_buffer, cursor_buffer_position) = self
10067 .buffer
10068 .read(cx)
10069 .text_anchor_for_position(selection.head(), cx)?;
10070 let (tail_buffer, cursor_buffer_position_end) = self
10071 .buffer
10072 .read(cx)
10073 .text_anchor_for_position(selection.tail(), cx)?;
10074 if tail_buffer != cursor_buffer {
10075 return None;
10076 }
10077
10078 let snapshot = cursor_buffer.read(cx).snapshot();
10079 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10080 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10081 let prepare_rename = provider
10082 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10083 .unwrap_or_else(|| Task::ready(Ok(None)));
10084 drop(snapshot);
10085
10086 Some(cx.spawn(|this, mut cx| async move {
10087 let rename_range = if let Some(range) = prepare_rename.await? {
10088 Some(range)
10089 } else {
10090 this.update(&mut cx, |this, cx| {
10091 let buffer = this.buffer.read(cx).snapshot(cx);
10092 let mut buffer_highlights = this
10093 .document_highlights_for_position(selection.head(), &buffer)
10094 .filter(|highlight| {
10095 highlight.start.excerpt_id == selection.head().excerpt_id
10096 && highlight.end.excerpt_id == selection.head().excerpt_id
10097 });
10098 buffer_highlights
10099 .next()
10100 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10101 })?
10102 };
10103 if let Some(rename_range) = rename_range {
10104 this.update(&mut cx, |this, cx| {
10105 let snapshot = cursor_buffer.read(cx).snapshot();
10106 let rename_buffer_range = rename_range.to_offset(&snapshot);
10107 let cursor_offset_in_rename_range =
10108 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10109 let cursor_offset_in_rename_range_end =
10110 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10111
10112 this.take_rename(false, cx);
10113 let buffer = this.buffer.read(cx).read(cx);
10114 let cursor_offset = selection.head().to_offset(&buffer);
10115 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10116 let rename_end = rename_start + rename_buffer_range.len();
10117 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10118 let mut old_highlight_id = None;
10119 let old_name: Arc<str> = buffer
10120 .chunks(rename_start..rename_end, true)
10121 .map(|chunk| {
10122 if old_highlight_id.is_none() {
10123 old_highlight_id = chunk.syntax_highlight_id;
10124 }
10125 chunk.text
10126 })
10127 .collect::<String>()
10128 .into();
10129
10130 drop(buffer);
10131
10132 // Position the selection in the rename editor so that it matches the current selection.
10133 this.show_local_selections = false;
10134 let rename_editor = cx.new_view(|cx| {
10135 let mut editor = Editor::single_line(cx);
10136 editor.buffer.update(cx, |buffer, cx| {
10137 buffer.edit([(0..0, old_name.clone())], None, cx)
10138 });
10139 let rename_selection_range = match cursor_offset_in_rename_range
10140 .cmp(&cursor_offset_in_rename_range_end)
10141 {
10142 Ordering::Equal => {
10143 editor.select_all(&SelectAll, cx);
10144 return editor;
10145 }
10146 Ordering::Less => {
10147 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10148 }
10149 Ordering::Greater => {
10150 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10151 }
10152 };
10153 if rename_selection_range.end > old_name.len() {
10154 editor.select_all(&SelectAll, cx);
10155 } else {
10156 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10157 s.select_ranges([rename_selection_range]);
10158 });
10159 }
10160 editor
10161 });
10162 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10163 if e == &EditorEvent::Focused {
10164 cx.emit(EditorEvent::FocusedIn)
10165 }
10166 })
10167 .detach();
10168
10169 let write_highlights =
10170 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10171 let read_highlights =
10172 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10173 let ranges = write_highlights
10174 .iter()
10175 .flat_map(|(_, ranges)| ranges.iter())
10176 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10177 .cloned()
10178 .collect();
10179
10180 this.highlight_text::<Rename>(
10181 ranges,
10182 HighlightStyle {
10183 fade_out: Some(0.6),
10184 ..Default::default()
10185 },
10186 cx,
10187 );
10188 let rename_focus_handle = rename_editor.focus_handle(cx);
10189 cx.focus(&rename_focus_handle);
10190 let block_id = this.insert_blocks(
10191 [BlockProperties {
10192 style: BlockStyle::Flex,
10193 placement: BlockPlacement::Below(range.start),
10194 height: 1,
10195 render: Arc::new({
10196 let rename_editor = rename_editor.clone();
10197 move |cx: &mut BlockContext| {
10198 let mut text_style = cx.editor_style.text.clone();
10199 if let Some(highlight_style) = old_highlight_id
10200 .and_then(|h| h.style(&cx.editor_style.syntax))
10201 {
10202 text_style = text_style.highlight(highlight_style);
10203 }
10204 div()
10205 .block_mouse_down()
10206 .pl(cx.anchor_x)
10207 .child(EditorElement::new(
10208 &rename_editor,
10209 EditorStyle {
10210 background: cx.theme().system().transparent,
10211 local_player: cx.editor_style.local_player,
10212 text: text_style,
10213 scrollbar_width: cx.editor_style.scrollbar_width,
10214 syntax: cx.editor_style.syntax.clone(),
10215 status: cx.editor_style.status.clone(),
10216 inlay_hints_style: HighlightStyle {
10217 font_weight: Some(FontWeight::BOLD),
10218 ..make_inlay_hints_style(cx)
10219 },
10220 inline_completion_styles: make_suggestion_styles(
10221 cx,
10222 ),
10223 ..EditorStyle::default()
10224 },
10225 ))
10226 .into_any_element()
10227 }
10228 }),
10229 priority: 0,
10230 }],
10231 Some(Autoscroll::fit()),
10232 cx,
10233 )[0];
10234 this.pending_rename = Some(RenameState {
10235 range,
10236 old_name,
10237 editor: rename_editor,
10238 block_id,
10239 });
10240 })?;
10241 }
10242
10243 Ok(())
10244 }))
10245 }
10246
10247 pub fn confirm_rename(
10248 &mut self,
10249 _: &ConfirmRename,
10250 cx: &mut ViewContext<Self>,
10251 ) -> Option<Task<Result<()>>> {
10252 let rename = self.take_rename(false, cx)?;
10253 let workspace = self.workspace()?.downgrade();
10254 let (buffer, start) = self
10255 .buffer
10256 .read(cx)
10257 .text_anchor_for_position(rename.range.start, cx)?;
10258 let (end_buffer, _) = self
10259 .buffer
10260 .read(cx)
10261 .text_anchor_for_position(rename.range.end, cx)?;
10262 if buffer != end_buffer {
10263 return None;
10264 }
10265
10266 let old_name = rename.old_name;
10267 let new_name = rename.editor.read(cx).text(cx);
10268
10269 let rename = self.semantics_provider.as_ref()?.perform_rename(
10270 &buffer,
10271 start,
10272 new_name.clone(),
10273 cx,
10274 )?;
10275
10276 Some(cx.spawn(|editor, mut cx| async move {
10277 let project_transaction = rename.await?;
10278 Self::open_project_transaction(
10279 &editor,
10280 workspace,
10281 project_transaction,
10282 format!("Rename: {} → {}", old_name, new_name),
10283 cx.clone(),
10284 )
10285 .await?;
10286
10287 editor.update(&mut cx, |editor, cx| {
10288 editor.refresh_document_highlights(cx);
10289 })?;
10290 Ok(())
10291 }))
10292 }
10293
10294 fn take_rename(
10295 &mut self,
10296 moving_cursor: bool,
10297 cx: &mut ViewContext<Self>,
10298 ) -> Option<RenameState> {
10299 let rename = self.pending_rename.take()?;
10300 if rename.editor.focus_handle(cx).is_focused(cx) {
10301 cx.focus(&self.focus_handle);
10302 }
10303
10304 self.remove_blocks(
10305 [rename.block_id].into_iter().collect(),
10306 Some(Autoscroll::fit()),
10307 cx,
10308 );
10309 self.clear_highlights::<Rename>(cx);
10310 self.show_local_selections = true;
10311
10312 if moving_cursor {
10313 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10314 editor.selections.newest::<usize>(cx).head()
10315 });
10316
10317 // Update the selection to match the position of the selection inside
10318 // the rename editor.
10319 let snapshot = self.buffer.read(cx).read(cx);
10320 let rename_range = rename.range.to_offset(&snapshot);
10321 let cursor_in_editor = snapshot
10322 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10323 .min(rename_range.end);
10324 drop(snapshot);
10325
10326 self.change_selections(None, cx, |s| {
10327 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10328 });
10329 } else {
10330 self.refresh_document_highlights(cx);
10331 }
10332
10333 Some(rename)
10334 }
10335
10336 pub fn pending_rename(&self) -> Option<&RenameState> {
10337 self.pending_rename.as_ref()
10338 }
10339
10340 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10341 let project = match &self.project {
10342 Some(project) => project.clone(),
10343 None => return None,
10344 };
10345
10346 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffers, cx))
10347 }
10348
10349 fn format_selections(
10350 &mut self,
10351 _: &FormatSelections,
10352 cx: &mut ViewContext<Self>,
10353 ) -> Option<Task<Result<()>>> {
10354 let project = match &self.project {
10355 Some(project) => project.clone(),
10356 None => return None,
10357 };
10358
10359 let ranges = self
10360 .selections
10361 .all_adjusted(cx)
10362 .into_iter()
10363 .map(|selection| selection.range())
10364 .collect_vec();
10365
10366 Some(self.perform_format(
10367 project,
10368 FormatTrigger::Manual,
10369 FormatTarget::Ranges(ranges),
10370 cx,
10371 ))
10372 }
10373
10374 fn perform_format(
10375 &mut self,
10376 project: Model<Project>,
10377 trigger: FormatTrigger,
10378 target: FormatTarget,
10379 cx: &mut ViewContext<Self>,
10380 ) -> Task<Result<()>> {
10381 let buffer = self.buffer.clone();
10382 let (buffers, target) = match target {
10383 FormatTarget::Buffers => {
10384 let mut buffers = buffer.read(cx).all_buffers();
10385 if trigger == FormatTrigger::Save {
10386 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10387 }
10388 (buffers, LspFormatTarget::Buffers)
10389 }
10390 FormatTarget::Ranges(selection_ranges) => {
10391 let multi_buffer = buffer.read(cx);
10392 let snapshot = multi_buffer.read(cx);
10393 let mut buffers = HashSet::default();
10394 let mut buffer_id_to_ranges: BTreeMap<BufferId, Vec<Range<text::Anchor>>> =
10395 BTreeMap::new();
10396 for selection_range in selection_ranges {
10397 for (buffer, buffer_range, _) in
10398 snapshot.range_to_buffer_ranges(selection_range)
10399 {
10400 let buffer_id = buffer.remote_id();
10401 let start = buffer.anchor_before(buffer_range.start);
10402 let end = buffer.anchor_after(buffer_range.end);
10403 buffers.insert(multi_buffer.buffer(buffer_id).unwrap());
10404 buffer_id_to_ranges
10405 .entry(buffer_id)
10406 .and_modify(|buffer_ranges| buffer_ranges.push(start..end))
10407 .or_insert_with(|| vec![start..end]);
10408 }
10409 }
10410 (buffers, LspFormatTarget::Ranges(buffer_id_to_ranges))
10411 }
10412 };
10413
10414 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10415 let format = project.update(cx, |project, cx| {
10416 project.format(buffers, target, true, trigger, cx)
10417 });
10418
10419 cx.spawn(|_, mut cx| async move {
10420 let transaction = futures::select_biased! {
10421 () = timeout => {
10422 log::warn!("timed out waiting for formatting");
10423 None
10424 }
10425 transaction = format.log_err().fuse() => transaction,
10426 };
10427
10428 buffer
10429 .update(&mut cx, |buffer, cx| {
10430 if let Some(transaction) = transaction {
10431 if !buffer.is_singleton() {
10432 buffer.push_transaction(&transaction.0, cx);
10433 }
10434 }
10435
10436 cx.notify();
10437 })
10438 .ok();
10439
10440 Ok(())
10441 })
10442 }
10443
10444 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10445 if let Some(project) = self.project.clone() {
10446 self.buffer.update(cx, |multi_buffer, cx| {
10447 project.update(cx, |project, cx| {
10448 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10449 });
10450 })
10451 }
10452 }
10453
10454 fn cancel_language_server_work(
10455 &mut self,
10456 _: &actions::CancelLanguageServerWork,
10457 cx: &mut ViewContext<Self>,
10458 ) {
10459 if let Some(project) = self.project.clone() {
10460 self.buffer.update(cx, |multi_buffer, cx| {
10461 project.update(cx, |project, cx| {
10462 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10463 });
10464 })
10465 }
10466 }
10467
10468 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10469 cx.show_character_palette();
10470 }
10471
10472 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10473 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10474 let buffer = self.buffer.read(cx).snapshot(cx);
10475 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10476 let is_valid = buffer
10477 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone())
10478 .any(|entry| {
10479 entry.diagnostic.is_primary
10480 && !entry.range.is_empty()
10481 && entry.range.start == primary_range_start
10482 && entry.diagnostic.message == active_diagnostics.primary_message
10483 });
10484
10485 if is_valid != active_diagnostics.is_valid {
10486 active_diagnostics.is_valid = is_valid;
10487 let mut new_styles = HashMap::default();
10488 for (block_id, diagnostic) in &active_diagnostics.blocks {
10489 new_styles.insert(
10490 *block_id,
10491 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10492 );
10493 }
10494 self.display_map.update(cx, |display_map, _cx| {
10495 display_map.replace_blocks(new_styles)
10496 });
10497 }
10498 }
10499 }
10500
10501 fn activate_diagnostics(
10502 &mut self,
10503 buffer_id: BufferId,
10504 group_id: usize,
10505 cx: &mut ViewContext<Self>,
10506 ) {
10507 self.dismiss_diagnostics(cx);
10508 let snapshot = self.snapshot(cx);
10509 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10510 let buffer = self.buffer.read(cx).snapshot(cx);
10511
10512 let mut primary_range = None;
10513 let mut primary_message = None;
10514 let diagnostic_group = buffer
10515 .diagnostic_group(buffer_id, group_id)
10516 .filter_map(|entry| {
10517 let start = entry.range.start;
10518 let end = entry.range.end;
10519 if snapshot.is_line_folded(MultiBufferRow(start.row))
10520 && (start.row == end.row
10521 || snapshot.is_line_folded(MultiBufferRow(end.row)))
10522 {
10523 return None;
10524 }
10525 if entry.diagnostic.is_primary {
10526 primary_range = Some(entry.range.clone());
10527 primary_message = Some(entry.diagnostic.message.clone());
10528 }
10529 Some(entry)
10530 })
10531 .collect::<Vec<_>>();
10532 let primary_range = primary_range?;
10533 let primary_message = primary_message?;
10534
10535 let blocks = display_map
10536 .insert_blocks(
10537 diagnostic_group.iter().map(|entry| {
10538 let diagnostic = entry.diagnostic.clone();
10539 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10540 BlockProperties {
10541 style: BlockStyle::Fixed,
10542 placement: BlockPlacement::Below(
10543 buffer.anchor_after(entry.range.start),
10544 ),
10545 height: message_height,
10546 render: diagnostic_block_renderer(diagnostic, None, true, true),
10547 priority: 0,
10548 }
10549 }),
10550 cx,
10551 )
10552 .into_iter()
10553 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10554 .collect();
10555
10556 Some(ActiveDiagnosticGroup {
10557 primary_range: buffer.anchor_before(primary_range.start)
10558 ..buffer.anchor_after(primary_range.end),
10559 primary_message,
10560 group_id,
10561 blocks,
10562 is_valid: true,
10563 })
10564 });
10565 }
10566
10567 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10568 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10569 self.display_map.update(cx, |display_map, cx| {
10570 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10571 });
10572 cx.notify();
10573 }
10574 }
10575
10576 pub fn set_selections_from_remote(
10577 &mut self,
10578 selections: Vec<Selection<Anchor>>,
10579 pending_selection: Option<Selection<Anchor>>,
10580 cx: &mut ViewContext<Self>,
10581 ) {
10582 let old_cursor_position = self.selections.newest_anchor().head();
10583 self.selections.change_with(cx, |s| {
10584 s.select_anchors(selections);
10585 if let Some(pending_selection) = pending_selection {
10586 s.set_pending(pending_selection, SelectMode::Character);
10587 } else {
10588 s.clear_pending();
10589 }
10590 });
10591 self.selections_did_change(false, &old_cursor_position, true, cx);
10592 }
10593
10594 fn push_to_selection_history(&mut self) {
10595 self.selection_history.push(SelectionHistoryEntry {
10596 selections: self.selections.disjoint_anchors(),
10597 select_next_state: self.select_next_state.clone(),
10598 select_prev_state: self.select_prev_state.clone(),
10599 add_selections_state: self.add_selections_state.clone(),
10600 });
10601 }
10602
10603 pub fn transact(
10604 &mut self,
10605 cx: &mut ViewContext<Self>,
10606 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10607 ) -> Option<TransactionId> {
10608 self.start_transaction_at(Instant::now(), cx);
10609 update(self, cx);
10610 self.end_transaction_at(Instant::now(), cx)
10611 }
10612
10613 pub fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10614 self.end_selection(cx);
10615 if let Some(tx_id) = self
10616 .buffer
10617 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10618 {
10619 self.selection_history
10620 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10621 cx.emit(EditorEvent::TransactionBegun {
10622 transaction_id: tx_id,
10623 })
10624 }
10625 }
10626
10627 pub fn end_transaction_at(
10628 &mut self,
10629 now: Instant,
10630 cx: &mut ViewContext<Self>,
10631 ) -> Option<TransactionId> {
10632 if let Some(transaction_id) = self
10633 .buffer
10634 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10635 {
10636 if let Some((_, end_selections)) =
10637 self.selection_history.transaction_mut(transaction_id)
10638 {
10639 *end_selections = Some(self.selections.disjoint_anchors());
10640 } else {
10641 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10642 }
10643
10644 cx.emit(EditorEvent::Edited { transaction_id });
10645 Some(transaction_id)
10646 } else {
10647 None
10648 }
10649 }
10650
10651 pub fn set_mark(&mut self, _: &actions::SetMark, cx: &mut ViewContext<Self>) {
10652 if self.selection_mark_mode {
10653 self.change_selections(None, cx, |s| {
10654 s.move_with(|_, sel| {
10655 sel.collapse_to(sel.head(), SelectionGoal::None);
10656 });
10657 })
10658 }
10659 self.selection_mark_mode = true;
10660 cx.notify();
10661 }
10662
10663 pub fn swap_selection_ends(
10664 &mut self,
10665 _: &actions::SwapSelectionEnds,
10666 cx: &mut ViewContext<Self>,
10667 ) {
10668 self.change_selections(None, cx, |s| {
10669 s.move_with(|_, sel| {
10670 if sel.start != sel.end {
10671 sel.reversed = !sel.reversed
10672 }
10673 });
10674 });
10675 self.request_autoscroll(Autoscroll::newest(), cx);
10676 cx.notify();
10677 }
10678
10679 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10680 if self.is_singleton(cx) {
10681 let selection = self.selections.newest::<Point>(cx);
10682
10683 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10684 let range = if selection.is_empty() {
10685 let point = selection.head().to_display_point(&display_map);
10686 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10687 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10688 .to_point(&display_map);
10689 start..end
10690 } else {
10691 selection.range()
10692 };
10693 if display_map.folds_in_range(range).next().is_some() {
10694 self.unfold_lines(&Default::default(), cx)
10695 } else {
10696 self.fold(&Default::default(), cx)
10697 }
10698 } else {
10699 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10700 let buffer_ids: HashSet<_> = multi_buffer_snapshot
10701 .ranges_to_buffer_ranges(self.selections.disjoint_anchor_ranges())
10702 .map(|(snapshot, _, _)| snapshot.remote_id())
10703 .collect();
10704
10705 for buffer_id in buffer_ids {
10706 if self.is_buffer_folded(buffer_id, cx) {
10707 self.unfold_buffer(buffer_id, cx);
10708 } else {
10709 self.fold_buffer(buffer_id, cx);
10710 }
10711 }
10712 }
10713 }
10714
10715 pub fn toggle_fold_recursive(
10716 &mut self,
10717 _: &actions::ToggleFoldRecursive,
10718 cx: &mut ViewContext<Self>,
10719 ) {
10720 let selection = self.selections.newest::<Point>(cx);
10721
10722 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10723 let range = if selection.is_empty() {
10724 let point = selection.head().to_display_point(&display_map);
10725 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10726 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10727 .to_point(&display_map);
10728 start..end
10729 } else {
10730 selection.range()
10731 };
10732 if display_map.folds_in_range(range).next().is_some() {
10733 self.unfold_recursive(&Default::default(), cx)
10734 } else {
10735 self.fold_recursive(&Default::default(), cx)
10736 }
10737 }
10738
10739 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10740 if self.is_singleton(cx) {
10741 let mut to_fold = Vec::new();
10742 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10743 let selections = self.selections.all_adjusted(cx);
10744
10745 for selection in selections {
10746 let range = selection.range().sorted();
10747 let buffer_start_row = range.start.row;
10748
10749 if range.start.row != range.end.row {
10750 let mut found = false;
10751 let mut row = range.start.row;
10752 while row <= range.end.row {
10753 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10754 {
10755 found = true;
10756 row = crease.range().end.row + 1;
10757 to_fold.push(crease);
10758 } else {
10759 row += 1
10760 }
10761 }
10762 if found {
10763 continue;
10764 }
10765 }
10766
10767 for row in (0..=range.start.row).rev() {
10768 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10769 if crease.range().end.row >= buffer_start_row {
10770 to_fold.push(crease);
10771 if row <= range.start.row {
10772 break;
10773 }
10774 }
10775 }
10776 }
10777 }
10778
10779 self.fold_creases(to_fold, true, cx);
10780 } else {
10781 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10782
10783 let buffer_ids: HashSet<_> = multi_buffer_snapshot
10784 .ranges_to_buffer_ranges(self.selections.disjoint_anchor_ranges())
10785 .map(|(snapshot, _, _)| snapshot.remote_id())
10786 .collect();
10787 for buffer_id in buffer_ids {
10788 self.fold_buffer(buffer_id, cx);
10789 }
10790 }
10791 }
10792
10793 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10794 if !self.buffer.read(cx).is_singleton() {
10795 return;
10796 }
10797
10798 let fold_at_level = fold_at.level;
10799 let snapshot = self.buffer.read(cx).snapshot(cx);
10800 let mut to_fold = Vec::new();
10801 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10802
10803 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10804 while start_row < end_row {
10805 match self
10806 .snapshot(cx)
10807 .crease_for_buffer_row(MultiBufferRow(start_row))
10808 {
10809 Some(crease) => {
10810 let nested_start_row = crease.range().start.row + 1;
10811 let nested_end_row = crease.range().end.row;
10812
10813 if current_level < fold_at_level {
10814 stack.push((nested_start_row, nested_end_row, current_level + 1));
10815 } else if current_level == fold_at_level {
10816 to_fold.push(crease);
10817 }
10818
10819 start_row = nested_end_row + 1;
10820 }
10821 None => start_row += 1,
10822 }
10823 }
10824 }
10825
10826 self.fold_creases(to_fold, true, cx);
10827 }
10828
10829 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10830 if self.buffer.read(cx).is_singleton() {
10831 let mut fold_ranges = Vec::new();
10832 let snapshot = self.buffer.read(cx).snapshot(cx);
10833
10834 for row in 0..snapshot.max_row().0 {
10835 if let Some(foldable_range) =
10836 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10837 {
10838 fold_ranges.push(foldable_range);
10839 }
10840 }
10841
10842 self.fold_creases(fold_ranges, true, cx);
10843 } else {
10844 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10845 editor
10846 .update(&mut cx, |editor, cx| {
10847 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10848 editor.fold_buffer(buffer_id, cx);
10849 }
10850 })
10851 .ok();
10852 });
10853 }
10854 }
10855
10856 pub fn fold_function_bodies(
10857 &mut self,
10858 _: &actions::FoldFunctionBodies,
10859 cx: &mut ViewContext<Self>,
10860 ) {
10861 let snapshot = self.buffer.read(cx).snapshot(cx);
10862
10863 let ranges = snapshot
10864 .text_object_ranges(0..snapshot.len(), TreeSitterOptions::default())
10865 .filter_map(|(range, obj)| (obj == TextObject::InsideFunction).then_some(range))
10866 .collect::<Vec<_>>();
10867
10868 let creases = ranges
10869 .into_iter()
10870 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10871 .collect();
10872
10873 self.fold_creases(creases, true, cx);
10874 }
10875
10876 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10877 let mut to_fold = Vec::new();
10878 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10879 let selections = self.selections.all_adjusted(cx);
10880
10881 for selection in selections {
10882 let range = selection.range().sorted();
10883 let buffer_start_row = range.start.row;
10884
10885 if range.start.row != range.end.row {
10886 let mut found = false;
10887 for row in range.start.row..=range.end.row {
10888 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10889 found = true;
10890 to_fold.push(crease);
10891 }
10892 }
10893 if found {
10894 continue;
10895 }
10896 }
10897
10898 for row in (0..=range.start.row).rev() {
10899 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10900 if crease.range().end.row >= buffer_start_row {
10901 to_fold.push(crease);
10902 } else {
10903 break;
10904 }
10905 }
10906 }
10907 }
10908
10909 self.fold_creases(to_fold, true, cx);
10910 }
10911
10912 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10913 let buffer_row = fold_at.buffer_row;
10914 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10915
10916 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10917 let autoscroll = self
10918 .selections
10919 .all::<Point>(cx)
10920 .iter()
10921 .any(|selection| crease.range().overlaps(&selection.range()));
10922
10923 self.fold_creases(vec![crease], autoscroll, cx);
10924 }
10925 }
10926
10927 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10928 if self.is_singleton(cx) {
10929 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10930 let buffer = &display_map.buffer_snapshot;
10931 let selections = self.selections.all::<Point>(cx);
10932 let ranges = selections
10933 .iter()
10934 .map(|s| {
10935 let range = s.display_range(&display_map).sorted();
10936 let mut start = range.start.to_point(&display_map);
10937 let mut end = range.end.to_point(&display_map);
10938 start.column = 0;
10939 end.column = buffer.line_len(MultiBufferRow(end.row));
10940 start..end
10941 })
10942 .collect::<Vec<_>>();
10943
10944 self.unfold_ranges(&ranges, true, true, cx);
10945 } else {
10946 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10947 let buffer_ids: HashSet<_> = multi_buffer_snapshot
10948 .ranges_to_buffer_ranges(self.selections.disjoint_anchor_ranges())
10949 .map(|(snapshot, _, _)| snapshot.remote_id())
10950 .collect();
10951 for buffer_id in buffer_ids {
10952 self.unfold_buffer(buffer_id, cx);
10953 }
10954 }
10955 }
10956
10957 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10958 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10959 let selections = self.selections.all::<Point>(cx);
10960 let ranges = selections
10961 .iter()
10962 .map(|s| {
10963 let mut range = s.display_range(&display_map).sorted();
10964 *range.start.column_mut() = 0;
10965 *range.end.column_mut() = display_map.line_len(range.end.row());
10966 let start = range.start.to_point(&display_map);
10967 let end = range.end.to_point(&display_map);
10968 start..end
10969 })
10970 .collect::<Vec<_>>();
10971
10972 self.unfold_ranges(&ranges, true, true, cx);
10973 }
10974
10975 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10976 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10977
10978 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10979 ..Point::new(
10980 unfold_at.buffer_row.0,
10981 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10982 );
10983
10984 let autoscroll = self
10985 .selections
10986 .all::<Point>(cx)
10987 .iter()
10988 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10989
10990 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10991 }
10992
10993 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10994 if self.buffer.read(cx).is_singleton() {
10995 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10996 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10997 } else {
10998 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10999 editor
11000 .update(&mut cx, |editor, cx| {
11001 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
11002 editor.unfold_buffer(buffer_id, cx);
11003 }
11004 })
11005 .ok();
11006 });
11007 }
11008 }
11009
11010 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11011 let selections = self.selections.all::<Point>(cx);
11012 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11013 let line_mode = self.selections.line_mode;
11014 let ranges = selections
11015 .into_iter()
11016 .map(|s| {
11017 if line_mode {
11018 let start = Point::new(s.start.row, 0);
11019 let end = Point::new(
11020 s.end.row,
11021 display_map
11022 .buffer_snapshot
11023 .line_len(MultiBufferRow(s.end.row)),
11024 );
11025 Crease::simple(start..end, display_map.fold_placeholder.clone())
11026 } else {
11027 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
11028 }
11029 })
11030 .collect::<Vec<_>>();
11031 self.fold_creases(ranges, true, cx);
11032 }
11033
11034 pub fn fold_ranges<T: ToOffset + Clone>(
11035 &mut self,
11036 ranges: Vec<Range<T>>,
11037 auto_scroll: bool,
11038 cx: &mut ViewContext<Self>,
11039 ) {
11040 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11041 let ranges = ranges
11042 .into_iter()
11043 .map(|r| Crease::simple(r, display_map.fold_placeholder.clone()))
11044 .collect::<Vec<_>>();
11045 self.fold_creases(ranges, auto_scroll, cx);
11046 }
11047
11048 pub fn fold_creases<T: ToOffset + Clone>(
11049 &mut self,
11050 creases: Vec<Crease<T>>,
11051 auto_scroll: bool,
11052 cx: &mut ViewContext<Self>,
11053 ) {
11054 if creases.is_empty() {
11055 return;
11056 }
11057
11058 let mut buffers_affected = HashSet::default();
11059 let multi_buffer = self.buffer().read(cx);
11060 for crease in &creases {
11061 if let Some((_, buffer, _)) =
11062 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
11063 {
11064 buffers_affected.insert(buffer.read(cx).remote_id());
11065 };
11066 }
11067
11068 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
11069
11070 if auto_scroll {
11071 self.request_autoscroll(Autoscroll::fit(), cx);
11072 }
11073
11074 cx.notify();
11075
11076 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11077 // Clear diagnostics block when folding a range that contains it.
11078 let snapshot = self.snapshot(cx);
11079 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11080 drop(snapshot);
11081 self.active_diagnostics = Some(active_diagnostics);
11082 self.dismiss_diagnostics(cx);
11083 } else {
11084 self.active_diagnostics = Some(active_diagnostics);
11085 }
11086 }
11087
11088 self.scrollbar_marker_state.dirty = true;
11089 }
11090
11091 /// Removes any folds whose ranges intersect any of the given ranges.
11092 pub fn unfold_ranges<T: ToOffset + Clone>(
11093 &mut self,
11094 ranges: &[Range<T>],
11095 inclusive: bool,
11096 auto_scroll: bool,
11097 cx: &mut ViewContext<Self>,
11098 ) {
11099 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11100 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
11101 });
11102 }
11103
11104 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
11105 if self.buffer().read(cx).is_singleton() || self.is_buffer_folded(buffer_id, cx) {
11106 return;
11107 }
11108 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
11109 return;
11110 };
11111 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
11112 self.display_map
11113 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
11114 cx.emit(EditorEvent::BufferFoldToggled {
11115 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
11116 folded: true,
11117 });
11118 cx.notify();
11119 }
11120
11121 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
11122 if self.buffer().read(cx).is_singleton() || !self.is_buffer_folded(buffer_id, cx) {
11123 return;
11124 }
11125 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
11126 return;
11127 };
11128 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
11129 self.display_map.update(cx, |display_map, cx| {
11130 display_map.unfold_buffer(buffer_id, cx);
11131 });
11132 cx.emit(EditorEvent::BufferFoldToggled {
11133 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
11134 folded: false,
11135 });
11136 cx.notify();
11137 }
11138
11139 pub fn is_buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
11140 self.display_map.read(cx).is_buffer_folded(buffer)
11141 }
11142
11143 pub fn folded_buffers<'a>(&self, cx: &'a AppContext) -> &'a HashSet<BufferId> {
11144 self.display_map.read(cx).folded_buffers()
11145 }
11146
11147 /// Removes any folds with the given ranges.
11148 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11149 &mut self,
11150 ranges: &[Range<T>],
11151 type_id: TypeId,
11152 auto_scroll: bool,
11153 cx: &mut ViewContext<Self>,
11154 ) {
11155 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11156 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11157 });
11158 }
11159
11160 fn remove_folds_with<T: ToOffset + Clone>(
11161 &mut self,
11162 ranges: &[Range<T>],
11163 auto_scroll: bool,
11164 cx: &mut ViewContext<Self>,
11165 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11166 ) {
11167 if ranges.is_empty() {
11168 return;
11169 }
11170
11171 let mut buffers_affected = HashSet::default();
11172 let multi_buffer = self.buffer().read(cx);
11173 for range in ranges {
11174 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11175 buffers_affected.insert(buffer.read(cx).remote_id());
11176 };
11177 }
11178
11179 self.display_map.update(cx, update);
11180
11181 if auto_scroll {
11182 self.request_autoscroll(Autoscroll::fit(), cx);
11183 }
11184
11185 cx.notify();
11186 self.scrollbar_marker_state.dirty = true;
11187 self.active_indent_guides_state.dirty = true;
11188 }
11189
11190 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11191 self.display_map.read(cx).fold_placeholder.clone()
11192 }
11193
11194 pub fn set_expand_all_diff_hunks(&mut self, cx: &mut AppContext) {
11195 self.buffer.update(cx, |buffer, cx| {
11196 buffer.set_all_diff_hunks_expanded(cx);
11197 });
11198 }
11199
11200 pub fn expand_all_diff_hunks(&mut self, _: &ExpandAllHunkDiffs, cx: &mut ViewContext<Self>) {
11201 self.buffer.update(cx, |buffer, cx| {
11202 buffer.expand_diff_hunks(vec![Anchor::min()..Anchor::max()], cx)
11203 });
11204 }
11205
11206 pub fn toggle_selected_diff_hunks(
11207 &mut self,
11208 _: &ToggleSelectedDiffHunks,
11209 cx: &mut ViewContext<Self>,
11210 ) {
11211 let ranges: Vec<_> = self.selections.disjoint.iter().map(|s| s.range()).collect();
11212 self.toggle_diff_hunks_in_ranges(ranges, cx);
11213 }
11214
11215 pub fn expand_selected_diff_hunks(&mut self, cx: &mut ViewContext<Self>) {
11216 let ranges: Vec<_> = self.selections.disjoint.iter().map(|s| s.range()).collect();
11217 self.buffer
11218 .update(cx, |buffer, cx| buffer.expand_diff_hunks(ranges, cx))
11219 }
11220
11221 pub fn clear_expanded_diff_hunks(&mut self, cx: &mut ViewContext<Self>) -> bool {
11222 self.buffer.update(cx, |buffer, cx| {
11223 let ranges = vec![Anchor::min()..Anchor::max()];
11224 if !buffer.all_diff_hunks_expanded()
11225 && buffer.has_expanded_diff_hunks_in_ranges(&ranges, cx)
11226 {
11227 buffer.collapse_diff_hunks(ranges, cx);
11228 true
11229 } else {
11230 false
11231 }
11232 })
11233 }
11234
11235 fn toggle_diff_hunks_in_ranges(
11236 &mut self,
11237 ranges: Vec<Range<Anchor>>,
11238 cx: &mut ViewContext<'_, Editor>,
11239 ) {
11240 self.buffer.update(cx, |buffer, cx| {
11241 if buffer.has_expanded_diff_hunks_in_ranges(&ranges, cx) {
11242 buffer.collapse_diff_hunks(ranges, cx)
11243 } else {
11244 buffer.expand_diff_hunks(ranges, cx)
11245 }
11246 })
11247 }
11248
11249 pub(crate) fn apply_all_diff_hunks(
11250 &mut self,
11251 _: &ApplyAllDiffHunks,
11252 cx: &mut ViewContext<Self>,
11253 ) {
11254 let buffers = self.buffer.read(cx).all_buffers();
11255 for branch_buffer in buffers {
11256 branch_buffer.update(cx, |branch_buffer, cx| {
11257 branch_buffer.merge_into_base(Vec::new(), cx);
11258 });
11259 }
11260
11261 if let Some(project) = self.project.clone() {
11262 self.save(true, project, cx).detach_and_log_err(cx);
11263 }
11264 }
11265
11266 pub(crate) fn apply_selected_diff_hunks(
11267 &mut self,
11268 _: &ApplyDiffHunk,
11269 cx: &mut ViewContext<Self>,
11270 ) {
11271 let snapshot = self.snapshot(cx);
11272 let hunks = snapshot.hunks_for_ranges(self.selections.ranges(cx).into_iter());
11273 let mut ranges_by_buffer = HashMap::default();
11274 self.transact(cx, |editor, cx| {
11275 for hunk in hunks {
11276 if let Some(buffer) = editor.buffer.read(cx).buffer(hunk.buffer_id) {
11277 ranges_by_buffer
11278 .entry(buffer.clone())
11279 .or_insert_with(Vec::new)
11280 .push(hunk.buffer_range.to_offset(buffer.read(cx)));
11281 }
11282 }
11283
11284 for (buffer, ranges) in ranges_by_buffer {
11285 buffer.update(cx, |buffer, cx| {
11286 buffer.merge_into_base(ranges, cx);
11287 });
11288 }
11289 });
11290
11291 if let Some(project) = self.project.clone() {
11292 self.save(true, project, cx).detach_and_log_err(cx);
11293 }
11294 }
11295
11296 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11297 if hovered != self.gutter_hovered {
11298 self.gutter_hovered = hovered;
11299 cx.notify();
11300 }
11301 }
11302
11303 pub fn insert_blocks(
11304 &mut self,
11305 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11306 autoscroll: Option<Autoscroll>,
11307 cx: &mut ViewContext<Self>,
11308 ) -> Vec<CustomBlockId> {
11309 let blocks = self
11310 .display_map
11311 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11312 if let Some(autoscroll) = autoscroll {
11313 self.request_autoscroll(autoscroll, cx);
11314 }
11315 cx.notify();
11316 blocks
11317 }
11318
11319 pub fn resize_blocks(
11320 &mut self,
11321 heights: HashMap<CustomBlockId, u32>,
11322 autoscroll: Option<Autoscroll>,
11323 cx: &mut ViewContext<Self>,
11324 ) {
11325 self.display_map
11326 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11327 if let Some(autoscroll) = autoscroll {
11328 self.request_autoscroll(autoscroll, cx);
11329 }
11330 cx.notify();
11331 }
11332
11333 pub fn replace_blocks(
11334 &mut self,
11335 renderers: HashMap<CustomBlockId, RenderBlock>,
11336 autoscroll: Option<Autoscroll>,
11337 cx: &mut ViewContext<Self>,
11338 ) {
11339 self.display_map
11340 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11341 if let Some(autoscroll) = autoscroll {
11342 self.request_autoscroll(autoscroll, cx);
11343 }
11344 cx.notify();
11345 }
11346
11347 pub fn remove_blocks(
11348 &mut self,
11349 block_ids: HashSet<CustomBlockId>,
11350 autoscroll: Option<Autoscroll>,
11351 cx: &mut ViewContext<Self>,
11352 ) {
11353 self.display_map.update(cx, |display_map, cx| {
11354 display_map.remove_blocks(block_ids, cx)
11355 });
11356 if let Some(autoscroll) = autoscroll {
11357 self.request_autoscroll(autoscroll, cx);
11358 }
11359 cx.notify();
11360 }
11361
11362 pub fn row_for_block(
11363 &self,
11364 block_id: CustomBlockId,
11365 cx: &mut ViewContext<Self>,
11366 ) -> Option<DisplayRow> {
11367 self.display_map
11368 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11369 }
11370
11371 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11372 self.focused_block = Some(focused_block);
11373 }
11374
11375 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11376 self.focused_block.take()
11377 }
11378
11379 pub fn insert_creases(
11380 &mut self,
11381 creases: impl IntoIterator<Item = Crease<Anchor>>,
11382 cx: &mut ViewContext<Self>,
11383 ) -> Vec<CreaseId> {
11384 self.display_map
11385 .update(cx, |map, cx| map.insert_creases(creases, cx))
11386 }
11387
11388 pub fn remove_creases(
11389 &mut self,
11390 ids: impl IntoIterator<Item = CreaseId>,
11391 cx: &mut ViewContext<Self>,
11392 ) {
11393 self.display_map
11394 .update(cx, |map, cx| map.remove_creases(ids, cx));
11395 }
11396
11397 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11398 self.display_map
11399 .update(cx, |map, cx| map.snapshot(cx))
11400 .longest_row()
11401 }
11402
11403 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11404 self.display_map
11405 .update(cx, |map, cx| map.snapshot(cx))
11406 .max_point()
11407 }
11408
11409 pub fn text(&self, cx: &AppContext) -> String {
11410 self.buffer.read(cx).read(cx).text()
11411 }
11412
11413 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11414 let text = self.text(cx);
11415 let text = text.trim();
11416
11417 if text.is_empty() {
11418 return None;
11419 }
11420
11421 Some(text.to_string())
11422 }
11423
11424 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11425 self.transact(cx, |this, cx| {
11426 this.buffer
11427 .read(cx)
11428 .as_singleton()
11429 .expect("you can only call set_text on editors for singleton buffers")
11430 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11431 });
11432 }
11433
11434 pub fn display_text(&self, cx: &mut AppContext) -> String {
11435 self.display_map
11436 .update(cx, |map, cx| map.snapshot(cx))
11437 .text()
11438 }
11439
11440 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11441 let mut wrap_guides = smallvec::smallvec![];
11442
11443 if self.show_wrap_guides == Some(false) {
11444 return wrap_guides;
11445 }
11446
11447 let settings = self.buffer.read(cx).settings_at(0, cx);
11448 if settings.show_wrap_guides {
11449 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11450 wrap_guides.push((soft_wrap as usize, true));
11451 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11452 wrap_guides.push((soft_wrap as usize, true));
11453 }
11454 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11455 }
11456
11457 wrap_guides
11458 }
11459
11460 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11461 let settings = self.buffer.read(cx).settings_at(0, cx);
11462 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11463 match mode {
11464 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11465 SoftWrap::None
11466 }
11467 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11468 language_settings::SoftWrap::PreferredLineLength => {
11469 SoftWrap::Column(settings.preferred_line_length)
11470 }
11471 language_settings::SoftWrap::Bounded => {
11472 SoftWrap::Bounded(settings.preferred_line_length)
11473 }
11474 }
11475 }
11476
11477 pub fn set_soft_wrap_mode(
11478 &mut self,
11479 mode: language_settings::SoftWrap,
11480 cx: &mut ViewContext<Self>,
11481 ) {
11482 self.soft_wrap_mode_override = Some(mode);
11483 cx.notify();
11484 }
11485
11486 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11487 self.text_style_refinement = Some(style);
11488 }
11489
11490 /// called by the Element so we know what style we were most recently rendered with.
11491 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11492 let rem_size = cx.rem_size();
11493 self.display_map.update(cx, |map, cx| {
11494 map.set_font(
11495 style.text.font(),
11496 style.text.font_size.to_pixels(rem_size),
11497 cx,
11498 )
11499 });
11500 self.style = Some(style);
11501 }
11502
11503 pub fn style(&self) -> Option<&EditorStyle> {
11504 self.style.as_ref()
11505 }
11506
11507 // Called by the element. This method is not designed to be called outside of the editor
11508 // element's layout code because it does not notify when rewrapping is computed synchronously.
11509 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11510 self.display_map
11511 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11512 }
11513
11514 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11515 if self.soft_wrap_mode_override.is_some() {
11516 self.soft_wrap_mode_override.take();
11517 } else {
11518 let soft_wrap = match self.soft_wrap_mode(cx) {
11519 SoftWrap::GitDiff => return,
11520 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11521 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11522 language_settings::SoftWrap::None
11523 }
11524 };
11525 self.soft_wrap_mode_override = Some(soft_wrap);
11526 }
11527 cx.notify();
11528 }
11529
11530 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11531 let Some(workspace) = self.workspace() else {
11532 return;
11533 };
11534 let fs = workspace.read(cx).app_state().fs.clone();
11535 let current_show = TabBarSettings::get_global(cx).show;
11536 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11537 setting.show = Some(!current_show);
11538 });
11539 }
11540
11541 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11542 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11543 self.buffer
11544 .read(cx)
11545 .settings_at(0, cx)
11546 .indent_guides
11547 .enabled
11548 });
11549 self.show_indent_guides = Some(!currently_enabled);
11550 cx.notify();
11551 }
11552
11553 fn should_show_indent_guides(&self) -> Option<bool> {
11554 self.show_indent_guides
11555 }
11556
11557 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11558 let mut editor_settings = EditorSettings::get_global(cx).clone();
11559 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11560 EditorSettings::override_global(editor_settings, cx);
11561 }
11562
11563 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11564 self.use_relative_line_numbers
11565 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11566 }
11567
11568 pub fn toggle_relative_line_numbers(
11569 &mut self,
11570 _: &ToggleRelativeLineNumbers,
11571 cx: &mut ViewContext<Self>,
11572 ) {
11573 let is_relative = self.should_use_relative_line_numbers(cx);
11574 self.set_relative_line_number(Some(!is_relative), cx)
11575 }
11576
11577 pub fn set_relative_line_number(
11578 &mut self,
11579 is_relative: Option<bool>,
11580 cx: &mut ViewContext<Self>,
11581 ) {
11582 self.use_relative_line_numbers = is_relative;
11583 cx.notify();
11584 }
11585
11586 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11587 self.show_gutter = show_gutter;
11588 cx.notify();
11589 }
11590
11591 pub fn set_show_scrollbars(&mut self, show_scrollbars: bool, cx: &mut ViewContext<Self>) {
11592 self.show_scrollbars = show_scrollbars;
11593 cx.notify();
11594 }
11595
11596 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11597 self.show_line_numbers = Some(show_line_numbers);
11598 cx.notify();
11599 }
11600
11601 pub fn set_show_git_diff_gutter(
11602 &mut self,
11603 show_git_diff_gutter: bool,
11604 cx: &mut ViewContext<Self>,
11605 ) {
11606 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11607 cx.notify();
11608 }
11609
11610 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11611 self.show_code_actions = Some(show_code_actions);
11612 cx.notify();
11613 }
11614
11615 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11616 self.show_runnables = Some(show_runnables);
11617 cx.notify();
11618 }
11619
11620 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11621 if self.display_map.read(cx).masked != masked {
11622 self.display_map.update(cx, |map, _| map.masked = masked);
11623 }
11624 cx.notify()
11625 }
11626
11627 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11628 self.show_wrap_guides = Some(show_wrap_guides);
11629 cx.notify();
11630 }
11631
11632 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11633 self.show_indent_guides = Some(show_indent_guides);
11634 cx.notify();
11635 }
11636
11637 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11638 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11639 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11640 if let Some(dir) = file.abs_path(cx).parent() {
11641 return Some(dir.to_owned());
11642 }
11643 }
11644
11645 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11646 return Some(project_path.path.to_path_buf());
11647 }
11648 }
11649
11650 None
11651 }
11652
11653 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11654 self.active_excerpt(cx)?
11655 .1
11656 .read(cx)
11657 .file()
11658 .and_then(|f| f.as_local())
11659 }
11660
11661 fn target_file_abs_path(&self, cx: &mut ViewContext<Self>) -> Option<PathBuf> {
11662 self.active_excerpt(cx).and_then(|(_, buffer, _)| {
11663 let project_path = buffer.read(cx).project_path(cx)?;
11664 let project = self.project.as_ref()?.read(cx);
11665 project.absolute_path(&project_path, cx)
11666 })
11667 }
11668
11669 fn target_file_path(&self, cx: &mut ViewContext<Self>) -> Option<PathBuf> {
11670 self.active_excerpt(cx).and_then(|(_, buffer, _)| {
11671 let project_path = buffer.read(cx).project_path(cx)?;
11672 let project = self.project.as_ref()?.read(cx);
11673 let entry = project.entry_for_path(&project_path, cx)?;
11674 let path = entry.path.to_path_buf();
11675 Some(path)
11676 })
11677 }
11678
11679 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11680 if let Some(target) = self.target_file(cx) {
11681 cx.reveal_path(&target.abs_path(cx));
11682 }
11683 }
11684
11685 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11686 if let Some(path) = self.target_file_abs_path(cx) {
11687 if let Some(path) = path.to_str() {
11688 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11689 }
11690 }
11691 }
11692
11693 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11694 if let Some(path) = self.target_file_path(cx) {
11695 if let Some(path) = path.to_str() {
11696 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11697 }
11698 }
11699 }
11700
11701 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11702 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11703
11704 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11705 self.start_git_blame(true, cx);
11706 }
11707
11708 cx.notify();
11709 }
11710
11711 pub fn toggle_git_blame_inline(
11712 &mut self,
11713 _: &ToggleGitBlameInline,
11714 cx: &mut ViewContext<Self>,
11715 ) {
11716 self.toggle_git_blame_inline_internal(true, cx);
11717 cx.notify();
11718 }
11719
11720 pub fn git_blame_inline_enabled(&self) -> bool {
11721 self.git_blame_inline_enabled
11722 }
11723
11724 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11725 self.show_selection_menu = self
11726 .show_selection_menu
11727 .map(|show_selections_menu| !show_selections_menu)
11728 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11729
11730 cx.notify();
11731 }
11732
11733 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11734 self.show_selection_menu
11735 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11736 }
11737
11738 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11739 if let Some(project) = self.project.as_ref() {
11740 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11741 return;
11742 };
11743
11744 if buffer.read(cx).file().is_none() {
11745 return;
11746 }
11747
11748 let focused = self.focus_handle(cx).contains_focused(cx);
11749
11750 let project = project.clone();
11751 let blame =
11752 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11753 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11754 self.blame = Some(blame);
11755 }
11756 }
11757
11758 fn toggle_git_blame_inline_internal(
11759 &mut self,
11760 user_triggered: bool,
11761 cx: &mut ViewContext<Self>,
11762 ) {
11763 if self.git_blame_inline_enabled {
11764 self.git_blame_inline_enabled = false;
11765 self.show_git_blame_inline = false;
11766 self.show_git_blame_inline_delay_task.take();
11767 } else {
11768 self.git_blame_inline_enabled = true;
11769 self.start_git_blame_inline(user_triggered, cx);
11770 }
11771
11772 cx.notify();
11773 }
11774
11775 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11776 self.start_git_blame(user_triggered, cx);
11777
11778 if ProjectSettings::get_global(cx)
11779 .git
11780 .inline_blame_delay()
11781 .is_some()
11782 {
11783 self.start_inline_blame_timer(cx);
11784 } else {
11785 self.show_git_blame_inline = true
11786 }
11787 }
11788
11789 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11790 self.blame.as_ref()
11791 }
11792
11793 pub fn show_git_blame_gutter(&self) -> bool {
11794 self.show_git_blame_gutter
11795 }
11796
11797 pub fn render_git_blame_gutter(&self, cx: &WindowContext) -> bool {
11798 self.show_git_blame_gutter && self.has_blame_entries(cx)
11799 }
11800
11801 pub fn render_git_blame_inline(&self, cx: &WindowContext) -> bool {
11802 self.show_git_blame_inline
11803 && self.focus_handle.is_focused(cx)
11804 && !self.newest_selection_head_on_empty_line(cx)
11805 && self.has_blame_entries(cx)
11806 }
11807
11808 fn has_blame_entries(&self, cx: &WindowContext) -> bool {
11809 self.blame()
11810 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11811 }
11812
11813 fn newest_selection_head_on_empty_line(&self, cx: &WindowContext) -> bool {
11814 let cursor_anchor = self.selections.newest_anchor().head();
11815
11816 let snapshot = self.buffer.read(cx).snapshot(cx);
11817 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11818
11819 snapshot.line_len(buffer_row) == 0
11820 }
11821
11822 fn get_permalink_to_line(&self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11823 let buffer_and_selection = maybe!({
11824 let selection = self.selections.newest::<Point>(cx);
11825 let selection_range = selection.range();
11826
11827 let multi_buffer = self.buffer().read(cx);
11828 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
11829 let buffer_ranges = multi_buffer_snapshot.range_to_buffer_ranges(selection_range);
11830
11831 let (buffer, range, _) = if selection.reversed {
11832 buffer_ranges.first()
11833 } else {
11834 buffer_ranges.last()
11835 }?;
11836
11837 let selection = text::ToPoint::to_point(&range.start, &buffer).row
11838 ..text::ToPoint::to_point(&range.end, &buffer).row;
11839 Some((
11840 multi_buffer.buffer(buffer.remote_id()).unwrap().clone(),
11841 selection,
11842 ))
11843 });
11844
11845 let Some((buffer, selection)) = buffer_and_selection else {
11846 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11847 };
11848
11849 let Some(project) = self.project.as_ref() else {
11850 return Task::ready(Err(anyhow!("editor does not have project")));
11851 };
11852
11853 project.update(cx, |project, cx| {
11854 project.get_permalink_to_line(&buffer, selection, cx)
11855 })
11856 }
11857
11858 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11859 let permalink_task = self.get_permalink_to_line(cx);
11860 let workspace = self.workspace();
11861
11862 cx.spawn(|_, mut cx| async move {
11863 match permalink_task.await {
11864 Ok(permalink) => {
11865 cx.update(|cx| {
11866 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11867 })
11868 .ok();
11869 }
11870 Err(err) => {
11871 let message = format!("Failed to copy permalink: {err}");
11872
11873 Err::<(), anyhow::Error>(err).log_err();
11874
11875 if let Some(workspace) = workspace {
11876 workspace
11877 .update(&mut cx, |workspace, cx| {
11878 struct CopyPermalinkToLine;
11879
11880 workspace.show_toast(
11881 Toast::new(
11882 NotificationId::unique::<CopyPermalinkToLine>(),
11883 message,
11884 ),
11885 cx,
11886 )
11887 })
11888 .ok();
11889 }
11890 }
11891 }
11892 })
11893 .detach();
11894 }
11895
11896 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11897 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11898 if let Some(file) = self.target_file(cx) {
11899 if let Some(path) = file.path().to_str() {
11900 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11901 }
11902 }
11903 }
11904
11905 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11906 let permalink_task = self.get_permalink_to_line(cx);
11907 let workspace = self.workspace();
11908
11909 cx.spawn(|_, mut cx| async move {
11910 match permalink_task.await {
11911 Ok(permalink) => {
11912 cx.update(|cx| {
11913 cx.open_url(permalink.as_ref());
11914 })
11915 .ok();
11916 }
11917 Err(err) => {
11918 let message = format!("Failed to open permalink: {err}");
11919
11920 Err::<(), anyhow::Error>(err).log_err();
11921
11922 if let Some(workspace) = workspace {
11923 workspace
11924 .update(&mut cx, |workspace, cx| {
11925 struct OpenPermalinkToLine;
11926
11927 workspace.show_toast(
11928 Toast::new(
11929 NotificationId::unique::<OpenPermalinkToLine>(),
11930 message,
11931 ),
11932 cx,
11933 )
11934 })
11935 .ok();
11936 }
11937 }
11938 }
11939 })
11940 .detach();
11941 }
11942
11943 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11944 self.insert_uuid(UuidVersion::V4, cx);
11945 }
11946
11947 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11948 self.insert_uuid(UuidVersion::V7, cx);
11949 }
11950
11951 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11952 self.transact(cx, |this, cx| {
11953 let edits = this
11954 .selections
11955 .all::<Point>(cx)
11956 .into_iter()
11957 .map(|selection| {
11958 let uuid = match version {
11959 UuidVersion::V4 => uuid::Uuid::new_v4(),
11960 UuidVersion::V7 => uuid::Uuid::now_v7(),
11961 };
11962
11963 (selection.range(), uuid.to_string())
11964 });
11965 this.edit(edits, cx);
11966 this.refresh_inline_completion(true, false, cx);
11967 });
11968 }
11969
11970 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11971 /// last highlight added will be used.
11972 ///
11973 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11974 pub fn highlight_rows<T: 'static>(
11975 &mut self,
11976 range: Range<Anchor>,
11977 color: Hsla,
11978 should_autoscroll: bool,
11979 cx: &mut ViewContext<Self>,
11980 ) {
11981 let snapshot = self.buffer().read(cx).snapshot(cx);
11982 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11983 let ix = row_highlights.binary_search_by(|highlight| {
11984 Ordering::Equal
11985 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11986 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11987 });
11988
11989 if let Err(mut ix) = ix {
11990 let index = post_inc(&mut self.highlight_order);
11991
11992 // If this range intersects with the preceding highlight, then merge it with
11993 // the preceding highlight. Otherwise insert a new highlight.
11994 let mut merged = false;
11995 if ix > 0 {
11996 let prev_highlight = &mut row_highlights[ix - 1];
11997 if prev_highlight
11998 .range
11999 .end
12000 .cmp(&range.start, &snapshot)
12001 .is_ge()
12002 {
12003 ix -= 1;
12004 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
12005 prev_highlight.range.end = range.end;
12006 }
12007 merged = true;
12008 prev_highlight.index = index;
12009 prev_highlight.color = color;
12010 prev_highlight.should_autoscroll = should_autoscroll;
12011 }
12012 }
12013
12014 if !merged {
12015 row_highlights.insert(
12016 ix,
12017 RowHighlight {
12018 range: range.clone(),
12019 index,
12020 color,
12021 should_autoscroll,
12022 },
12023 );
12024 }
12025
12026 // If any of the following highlights intersect with this one, merge them.
12027 while let Some(next_highlight) = row_highlights.get(ix + 1) {
12028 let highlight = &row_highlights[ix];
12029 if next_highlight
12030 .range
12031 .start
12032 .cmp(&highlight.range.end, &snapshot)
12033 .is_le()
12034 {
12035 if next_highlight
12036 .range
12037 .end
12038 .cmp(&highlight.range.end, &snapshot)
12039 .is_gt()
12040 {
12041 row_highlights[ix].range.end = next_highlight.range.end;
12042 }
12043 row_highlights.remove(ix + 1);
12044 } else {
12045 break;
12046 }
12047 }
12048 }
12049 }
12050
12051 /// Remove any highlighted row ranges of the given type that intersect the
12052 /// given ranges.
12053 pub fn remove_highlighted_rows<T: 'static>(
12054 &mut self,
12055 ranges_to_remove: Vec<Range<Anchor>>,
12056 cx: &mut ViewContext<Self>,
12057 ) {
12058 let snapshot = self.buffer().read(cx).snapshot(cx);
12059 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12060 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
12061 row_highlights.retain(|highlight| {
12062 while let Some(range_to_remove) = ranges_to_remove.peek() {
12063 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
12064 Ordering::Less | Ordering::Equal => {
12065 ranges_to_remove.next();
12066 }
12067 Ordering::Greater => {
12068 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
12069 Ordering::Less | Ordering::Equal => {
12070 return false;
12071 }
12072 Ordering::Greater => break,
12073 }
12074 }
12075 }
12076 }
12077
12078 true
12079 })
12080 }
12081
12082 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
12083 pub fn clear_row_highlights<T: 'static>(&mut self) {
12084 self.highlighted_rows.remove(&TypeId::of::<T>());
12085 }
12086
12087 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
12088 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
12089 self.highlighted_rows
12090 .get(&TypeId::of::<T>())
12091 .map_or(&[] as &[_], |vec| vec.as_slice())
12092 .iter()
12093 .map(|highlight| (highlight.range.clone(), highlight.color))
12094 }
12095
12096 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
12097 /// Returns a map of display rows that are highlighted and their corresponding highlight color.
12098 /// Allows to ignore certain kinds of highlights.
12099 pub fn highlighted_display_rows(&self, cx: &mut WindowContext) -> BTreeMap<DisplayRow, Hsla> {
12100 let snapshot = self.snapshot(cx);
12101 let mut used_highlight_orders = HashMap::default();
12102 self.highlighted_rows
12103 .iter()
12104 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
12105 .fold(
12106 BTreeMap::<DisplayRow, Hsla>::new(),
12107 |mut unique_rows, highlight| {
12108 let start = highlight.range.start.to_display_point(&snapshot);
12109 let end = highlight.range.end.to_display_point(&snapshot);
12110 let start_row = start.row().0;
12111 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
12112 && end.column() == 0
12113 {
12114 end.row().0.saturating_sub(1)
12115 } else {
12116 end.row().0
12117 };
12118 for row in start_row..=end_row {
12119 let used_index =
12120 used_highlight_orders.entry(row).or_insert(highlight.index);
12121 if highlight.index >= *used_index {
12122 *used_index = highlight.index;
12123 unique_rows.insert(DisplayRow(row), highlight.color);
12124 }
12125 }
12126 unique_rows
12127 },
12128 )
12129 }
12130
12131 pub fn highlighted_display_row_for_autoscroll(
12132 &self,
12133 snapshot: &DisplaySnapshot,
12134 ) -> Option<DisplayRow> {
12135 self.highlighted_rows
12136 .values()
12137 .flat_map(|highlighted_rows| highlighted_rows.iter())
12138 .filter_map(|highlight| {
12139 if highlight.should_autoscroll {
12140 Some(highlight.range.start.to_display_point(snapshot).row())
12141 } else {
12142 None
12143 }
12144 })
12145 .min()
12146 }
12147
12148 pub fn set_search_within_ranges(
12149 &mut self,
12150 ranges: &[Range<Anchor>],
12151 cx: &mut ViewContext<Self>,
12152 ) {
12153 self.highlight_background::<SearchWithinRange>(
12154 ranges,
12155 |colors| colors.editor_document_highlight_read_background,
12156 cx,
12157 )
12158 }
12159
12160 pub fn set_breadcrumb_header(&mut self, new_header: String) {
12161 self.breadcrumb_header = Some(new_header);
12162 }
12163
12164 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12165 self.clear_background_highlights::<SearchWithinRange>(cx);
12166 }
12167
12168 pub fn highlight_background<T: 'static>(
12169 &mut self,
12170 ranges: &[Range<Anchor>],
12171 color_fetcher: fn(&ThemeColors) -> Hsla,
12172 cx: &mut ViewContext<Self>,
12173 ) {
12174 self.background_highlights
12175 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12176 self.scrollbar_marker_state.dirty = true;
12177 cx.notify();
12178 }
12179
12180 pub fn clear_background_highlights<T: 'static>(
12181 &mut self,
12182 cx: &mut ViewContext<Self>,
12183 ) -> Option<BackgroundHighlight> {
12184 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12185 if !text_highlights.1.is_empty() {
12186 self.scrollbar_marker_state.dirty = true;
12187 cx.notify();
12188 }
12189 Some(text_highlights)
12190 }
12191
12192 pub fn highlight_gutter<T: 'static>(
12193 &mut self,
12194 ranges: &[Range<Anchor>],
12195 color_fetcher: fn(&AppContext) -> Hsla,
12196 cx: &mut ViewContext<Self>,
12197 ) {
12198 self.gutter_highlights
12199 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12200 cx.notify();
12201 }
12202
12203 pub fn clear_gutter_highlights<T: 'static>(
12204 &mut self,
12205 cx: &mut ViewContext<Self>,
12206 ) -> Option<GutterHighlight> {
12207 cx.notify();
12208 self.gutter_highlights.remove(&TypeId::of::<T>())
12209 }
12210
12211 #[cfg(feature = "test-support")]
12212 pub fn all_text_background_highlights(
12213 &self,
12214 cx: &mut ViewContext<Self>,
12215 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12216 let snapshot = self.snapshot(cx);
12217 let buffer = &snapshot.buffer_snapshot;
12218 let start = buffer.anchor_before(0);
12219 let end = buffer.anchor_after(buffer.len());
12220 let theme = cx.theme().colors();
12221 self.background_highlights_in_range(start..end, &snapshot, theme)
12222 }
12223
12224 #[cfg(feature = "test-support")]
12225 pub fn search_background_highlights(
12226 &mut self,
12227 cx: &mut ViewContext<Self>,
12228 ) -> Vec<Range<Point>> {
12229 let snapshot = self.buffer().read(cx).snapshot(cx);
12230
12231 let highlights = self
12232 .background_highlights
12233 .get(&TypeId::of::<items::BufferSearchHighlights>());
12234
12235 if let Some((_color, ranges)) = highlights {
12236 ranges
12237 .iter()
12238 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12239 .collect_vec()
12240 } else {
12241 vec![]
12242 }
12243 }
12244
12245 fn document_highlights_for_position<'a>(
12246 &'a self,
12247 position: Anchor,
12248 buffer: &'a MultiBufferSnapshot,
12249 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12250 let read_highlights = self
12251 .background_highlights
12252 .get(&TypeId::of::<DocumentHighlightRead>())
12253 .map(|h| &h.1);
12254 let write_highlights = self
12255 .background_highlights
12256 .get(&TypeId::of::<DocumentHighlightWrite>())
12257 .map(|h| &h.1);
12258 let left_position = position.bias_left(buffer);
12259 let right_position = position.bias_right(buffer);
12260 read_highlights
12261 .into_iter()
12262 .chain(write_highlights)
12263 .flat_map(move |ranges| {
12264 let start_ix = match ranges.binary_search_by(|probe| {
12265 let cmp = probe.end.cmp(&left_position, buffer);
12266 if cmp.is_ge() {
12267 Ordering::Greater
12268 } else {
12269 Ordering::Less
12270 }
12271 }) {
12272 Ok(i) | Err(i) => i,
12273 };
12274
12275 ranges[start_ix..]
12276 .iter()
12277 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12278 })
12279 }
12280
12281 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12282 self.background_highlights
12283 .get(&TypeId::of::<T>())
12284 .map_or(false, |(_, highlights)| !highlights.is_empty())
12285 }
12286
12287 pub fn background_highlights_in_range(
12288 &self,
12289 search_range: Range<Anchor>,
12290 display_snapshot: &DisplaySnapshot,
12291 theme: &ThemeColors,
12292 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12293 let mut results = Vec::new();
12294 for (color_fetcher, ranges) in self.background_highlights.values() {
12295 let color = color_fetcher(theme);
12296 let start_ix = match ranges.binary_search_by(|probe| {
12297 let cmp = probe
12298 .end
12299 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12300 if cmp.is_gt() {
12301 Ordering::Greater
12302 } else {
12303 Ordering::Less
12304 }
12305 }) {
12306 Ok(i) | Err(i) => i,
12307 };
12308 for range in &ranges[start_ix..] {
12309 if range
12310 .start
12311 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12312 .is_ge()
12313 {
12314 break;
12315 }
12316
12317 let start = range.start.to_display_point(display_snapshot);
12318 let end = range.end.to_display_point(display_snapshot);
12319 results.push((start..end, color))
12320 }
12321 }
12322 results
12323 }
12324
12325 pub fn background_highlight_row_ranges<T: 'static>(
12326 &self,
12327 search_range: Range<Anchor>,
12328 display_snapshot: &DisplaySnapshot,
12329 count: usize,
12330 ) -> Vec<RangeInclusive<DisplayPoint>> {
12331 let mut results = Vec::new();
12332 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12333 return vec![];
12334 };
12335
12336 let start_ix = match ranges.binary_search_by(|probe| {
12337 let cmp = probe
12338 .end
12339 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12340 if cmp.is_gt() {
12341 Ordering::Greater
12342 } else {
12343 Ordering::Less
12344 }
12345 }) {
12346 Ok(i) | Err(i) => i,
12347 };
12348 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12349 if let (Some(start_display), Some(end_display)) = (start, end) {
12350 results.push(
12351 start_display.to_display_point(display_snapshot)
12352 ..=end_display.to_display_point(display_snapshot),
12353 );
12354 }
12355 };
12356 let mut start_row: Option<Point> = None;
12357 let mut end_row: Option<Point> = None;
12358 if ranges.len() > count {
12359 return Vec::new();
12360 }
12361 for range in &ranges[start_ix..] {
12362 if range
12363 .start
12364 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12365 .is_ge()
12366 {
12367 break;
12368 }
12369 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12370 if let Some(current_row) = &end_row {
12371 if end.row == current_row.row {
12372 continue;
12373 }
12374 }
12375 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12376 if start_row.is_none() {
12377 assert_eq!(end_row, None);
12378 start_row = Some(start);
12379 end_row = Some(end);
12380 continue;
12381 }
12382 if let Some(current_end) = end_row.as_mut() {
12383 if start.row > current_end.row + 1 {
12384 push_region(start_row, end_row);
12385 start_row = Some(start);
12386 end_row = Some(end);
12387 } else {
12388 // Merge two hunks.
12389 *current_end = end;
12390 }
12391 } else {
12392 unreachable!();
12393 }
12394 }
12395 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12396 push_region(start_row, end_row);
12397 results
12398 }
12399
12400 pub fn gutter_highlights_in_range(
12401 &self,
12402 search_range: Range<Anchor>,
12403 display_snapshot: &DisplaySnapshot,
12404 cx: &AppContext,
12405 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12406 let mut results = Vec::new();
12407 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12408 let color = color_fetcher(cx);
12409 let start_ix = match ranges.binary_search_by(|probe| {
12410 let cmp = probe
12411 .end
12412 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12413 if cmp.is_gt() {
12414 Ordering::Greater
12415 } else {
12416 Ordering::Less
12417 }
12418 }) {
12419 Ok(i) | Err(i) => i,
12420 };
12421 for range in &ranges[start_ix..] {
12422 if range
12423 .start
12424 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12425 .is_ge()
12426 {
12427 break;
12428 }
12429
12430 let start = range.start.to_display_point(display_snapshot);
12431 let end = range.end.to_display_point(display_snapshot);
12432 results.push((start..end, color))
12433 }
12434 }
12435 results
12436 }
12437
12438 /// Get the text ranges corresponding to the redaction query
12439 pub fn redacted_ranges(
12440 &self,
12441 search_range: Range<Anchor>,
12442 display_snapshot: &DisplaySnapshot,
12443 cx: &WindowContext,
12444 ) -> Vec<Range<DisplayPoint>> {
12445 display_snapshot
12446 .buffer_snapshot
12447 .redacted_ranges(search_range, |file| {
12448 if let Some(file) = file {
12449 file.is_private()
12450 && EditorSettings::get(
12451 Some(SettingsLocation {
12452 worktree_id: file.worktree_id(cx),
12453 path: file.path().as_ref(),
12454 }),
12455 cx,
12456 )
12457 .redact_private_values
12458 } else {
12459 false
12460 }
12461 })
12462 .map(|range| {
12463 range.start.to_display_point(display_snapshot)
12464 ..range.end.to_display_point(display_snapshot)
12465 })
12466 .collect()
12467 }
12468
12469 pub fn highlight_text<T: 'static>(
12470 &mut self,
12471 ranges: Vec<Range<Anchor>>,
12472 style: HighlightStyle,
12473 cx: &mut ViewContext<Self>,
12474 ) {
12475 self.display_map.update(cx, |map, _| {
12476 map.highlight_text(TypeId::of::<T>(), ranges, style)
12477 });
12478 cx.notify();
12479 }
12480
12481 pub(crate) fn highlight_inlays<T: 'static>(
12482 &mut self,
12483 highlights: Vec<InlayHighlight>,
12484 style: HighlightStyle,
12485 cx: &mut ViewContext<Self>,
12486 ) {
12487 self.display_map.update(cx, |map, _| {
12488 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12489 });
12490 cx.notify();
12491 }
12492
12493 pub fn text_highlights<'a, T: 'static>(
12494 &'a self,
12495 cx: &'a AppContext,
12496 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12497 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12498 }
12499
12500 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12501 let cleared = self
12502 .display_map
12503 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12504 if cleared {
12505 cx.notify();
12506 }
12507 }
12508
12509 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12510 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12511 && self.focus_handle.is_focused(cx)
12512 }
12513
12514 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12515 self.show_cursor_when_unfocused = is_enabled;
12516 cx.notify();
12517 }
12518
12519 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12520 self.project
12521 .as_ref()
12522 .map(|project| project.read(cx).lsp_store())
12523 }
12524
12525 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12526 cx.notify();
12527 }
12528
12529 fn on_buffer_event(
12530 &mut self,
12531 multibuffer: Model<MultiBuffer>,
12532 event: &multi_buffer::Event,
12533 cx: &mut ViewContext<Self>,
12534 ) {
12535 match event {
12536 multi_buffer::Event::Edited {
12537 singleton_buffer_edited,
12538 edited_buffer: buffer_edited,
12539 } => {
12540 self.scrollbar_marker_state.dirty = true;
12541 self.active_indent_guides_state.dirty = true;
12542 self.refresh_active_diagnostics(cx);
12543 self.refresh_code_actions(cx);
12544 if self.has_active_inline_completion() {
12545 self.update_visible_inline_completion(cx);
12546 }
12547 if let Some(buffer) = buffer_edited {
12548 let buffer_id = buffer.read(cx).remote_id();
12549 if !self.registered_buffers.contains_key(&buffer_id) {
12550 if let Some(lsp_store) = self.lsp_store(cx) {
12551 lsp_store.update(cx, |lsp_store, cx| {
12552 self.registered_buffers.insert(
12553 buffer_id,
12554 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12555 );
12556 })
12557 }
12558 }
12559 }
12560 cx.emit(EditorEvent::BufferEdited);
12561 cx.emit(SearchEvent::MatchesInvalidated);
12562 if *singleton_buffer_edited {
12563 if let Some(project) = &self.project {
12564 let project = project.read(cx);
12565 #[allow(clippy::mutable_key_type)]
12566 let languages_affected = multibuffer
12567 .read(cx)
12568 .all_buffers()
12569 .into_iter()
12570 .filter_map(|buffer| {
12571 let buffer = buffer.read(cx);
12572 let language = buffer.language()?;
12573 if project.is_local()
12574 && project
12575 .language_servers_for_local_buffer(buffer, cx)
12576 .count()
12577 == 0
12578 {
12579 None
12580 } else {
12581 Some(language)
12582 }
12583 })
12584 .cloned()
12585 .collect::<HashSet<_>>();
12586 if !languages_affected.is_empty() {
12587 self.refresh_inlay_hints(
12588 InlayHintRefreshReason::BufferEdited(languages_affected),
12589 cx,
12590 );
12591 }
12592 }
12593 }
12594
12595 let Some(project) = &self.project else { return };
12596 let (telemetry, is_via_ssh) = {
12597 let project = project.read(cx);
12598 let telemetry = project.client().telemetry().clone();
12599 let is_via_ssh = project.is_via_ssh();
12600 (telemetry, is_via_ssh)
12601 };
12602 refresh_linked_ranges(self, cx);
12603 telemetry.log_edit_event("editor", is_via_ssh);
12604 }
12605 multi_buffer::Event::ExcerptsAdded {
12606 buffer,
12607 predecessor,
12608 excerpts,
12609 } => {
12610 self.tasks_update_task = Some(self.refresh_runnables(cx));
12611 let buffer_id = buffer.read(cx).remote_id();
12612 if self.buffer.read(cx).change_set_for(buffer_id).is_none() {
12613 if let Some(project) = &self.project {
12614 get_unstaged_changes_for_buffers(
12615 project,
12616 [buffer.clone()],
12617 self.buffer.clone(),
12618 cx,
12619 );
12620 }
12621 }
12622 cx.emit(EditorEvent::ExcerptsAdded {
12623 buffer: buffer.clone(),
12624 predecessor: *predecessor,
12625 excerpts: excerpts.clone(),
12626 });
12627 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12628 }
12629 multi_buffer::Event::ExcerptsRemoved { ids } => {
12630 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12631 let buffer = self.buffer.read(cx);
12632 self.registered_buffers
12633 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12634 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12635 }
12636 multi_buffer::Event::ExcerptsEdited { ids } => {
12637 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12638 }
12639 multi_buffer::Event::ExcerptsExpanded { ids } => {
12640 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12641 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12642 }
12643 multi_buffer::Event::Reparsed(buffer_id) => {
12644 self.tasks_update_task = Some(self.refresh_runnables(cx));
12645
12646 cx.emit(EditorEvent::Reparsed(*buffer_id));
12647 }
12648 multi_buffer::Event::LanguageChanged(buffer_id) => {
12649 linked_editing_ranges::refresh_linked_ranges(self, cx);
12650 cx.emit(EditorEvent::Reparsed(*buffer_id));
12651 cx.notify();
12652 }
12653 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12654 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12655 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12656 cx.emit(EditorEvent::TitleChanged)
12657 }
12658 // multi_buffer::Event::DiffBaseChanged => {
12659 // self.scrollbar_marker_state.dirty = true;
12660 // cx.emit(EditorEvent::DiffBaseChanged);
12661 // cx.notify();
12662 // }
12663 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12664 multi_buffer::Event::DiagnosticsUpdated => {
12665 self.refresh_active_diagnostics(cx);
12666 self.scrollbar_marker_state.dirty = true;
12667 cx.notify();
12668 }
12669 _ => {}
12670 };
12671 }
12672
12673 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12674 cx.notify();
12675 }
12676
12677 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12678 self.tasks_update_task = Some(self.refresh_runnables(cx));
12679 self.refresh_inline_completion(true, false, cx);
12680 self.refresh_inlay_hints(
12681 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12682 self.selections.newest_anchor().head(),
12683 &self.buffer.read(cx).snapshot(cx),
12684 cx,
12685 )),
12686 cx,
12687 );
12688
12689 let old_cursor_shape = self.cursor_shape;
12690
12691 {
12692 let editor_settings = EditorSettings::get_global(cx);
12693 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12694 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12695 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12696 }
12697
12698 if old_cursor_shape != self.cursor_shape {
12699 cx.emit(EditorEvent::CursorShapeChanged);
12700 }
12701
12702 let project_settings = ProjectSettings::get_global(cx);
12703 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12704
12705 if self.mode == EditorMode::Full {
12706 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12707 if self.git_blame_inline_enabled != inline_blame_enabled {
12708 self.toggle_git_blame_inline_internal(false, cx);
12709 }
12710 }
12711
12712 cx.notify();
12713 }
12714
12715 pub fn set_searchable(&mut self, searchable: bool) {
12716 self.searchable = searchable;
12717 }
12718
12719 pub fn searchable(&self) -> bool {
12720 self.searchable
12721 }
12722
12723 fn open_proposed_changes_editor(
12724 &mut self,
12725 _: &OpenProposedChangesEditor,
12726 cx: &mut ViewContext<Self>,
12727 ) {
12728 let Some(workspace) = self.workspace() else {
12729 cx.propagate();
12730 return;
12731 };
12732
12733 let selections = self.selections.all::<usize>(cx);
12734 let multi_buffer = self.buffer.read(cx);
12735 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
12736 let mut new_selections_by_buffer = HashMap::default();
12737 for selection in selections {
12738 for (buffer, range, _) in
12739 multi_buffer_snapshot.range_to_buffer_ranges(selection.start..selection.end)
12740 {
12741 let mut range = range.to_point(buffer);
12742 range.start.column = 0;
12743 range.end.column = buffer.line_len(range.end.row);
12744 new_selections_by_buffer
12745 .entry(multi_buffer.buffer(buffer.remote_id()).unwrap())
12746 .or_insert(Vec::new())
12747 .push(range)
12748 }
12749 }
12750
12751 let proposed_changes_buffers = new_selections_by_buffer
12752 .into_iter()
12753 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12754 .collect::<Vec<_>>();
12755 let proposed_changes_editor = cx.new_view(|cx| {
12756 ProposedChangesEditor::new(
12757 "Proposed changes",
12758 proposed_changes_buffers,
12759 self.project.clone(),
12760 cx,
12761 )
12762 });
12763
12764 cx.window_context().defer(move |cx| {
12765 workspace.update(cx, |workspace, cx| {
12766 workspace.active_pane().update(cx, |pane, cx| {
12767 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12768 });
12769 });
12770 });
12771 }
12772
12773 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12774 self.open_excerpts_common(None, true, cx)
12775 }
12776
12777 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12778 self.open_excerpts_common(None, false, cx)
12779 }
12780
12781 fn open_excerpts_common(
12782 &mut self,
12783 jump_data: Option<JumpData>,
12784 split: bool,
12785 cx: &mut ViewContext<Self>,
12786 ) {
12787 let Some(workspace) = self.workspace() else {
12788 cx.propagate();
12789 return;
12790 };
12791
12792 if self.buffer.read(cx).is_singleton() {
12793 cx.propagate();
12794 return;
12795 }
12796
12797 let mut new_selections_by_buffer = HashMap::default();
12798 match &jump_data {
12799 Some(JumpData::MultiBufferPoint {
12800 excerpt_id,
12801 position,
12802 anchor,
12803 line_offset_from_top,
12804 }) => {
12805 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12806 if let Some(buffer) = multi_buffer_snapshot
12807 .buffer_id_for_excerpt(*excerpt_id)
12808 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12809 {
12810 let buffer_snapshot = buffer.read(cx).snapshot();
12811 let jump_to_point = if buffer_snapshot.can_resolve(anchor) {
12812 language::ToPoint::to_point(anchor, &buffer_snapshot)
12813 } else {
12814 buffer_snapshot.clip_point(*position, Bias::Left)
12815 };
12816 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12817 new_selections_by_buffer.insert(
12818 buffer,
12819 (
12820 vec![jump_to_offset..jump_to_offset],
12821 Some(*line_offset_from_top),
12822 ),
12823 );
12824 }
12825 }
12826 Some(JumpData::MultiBufferRow {
12827 row,
12828 line_offset_from_top,
12829 }) => {
12830 let point = MultiBufferPoint::new(row.0, 0);
12831 if let Some((buffer, buffer_point, _)) =
12832 self.buffer.read(cx).point_to_buffer_point(point, cx)
12833 {
12834 let buffer_offset = buffer.read(cx).point_to_offset(buffer_point);
12835 new_selections_by_buffer
12836 .entry(buffer)
12837 .or_insert((Vec::new(), Some(*line_offset_from_top)))
12838 .0
12839 .push(buffer_offset..buffer_offset)
12840 }
12841 }
12842 None => {
12843 let selections = self.selections.all::<usize>(cx);
12844 let multi_buffer = self.buffer.read(cx);
12845 for selection in selections {
12846 for (buffer, mut range, _) in multi_buffer
12847 .snapshot(cx)
12848 .range_to_buffer_ranges(selection.range())
12849 {
12850 // When editing branch buffers, jump to the corresponding location
12851 // in their base buffer.
12852 let mut buffer_handle = multi_buffer.buffer(buffer.remote_id()).unwrap();
12853 let buffer = buffer_handle.read(cx);
12854 if let Some(base_buffer) = buffer.base_buffer() {
12855 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12856 buffer_handle = base_buffer;
12857 }
12858
12859 if selection.reversed {
12860 mem::swap(&mut range.start, &mut range.end);
12861 }
12862 new_selections_by_buffer
12863 .entry(buffer_handle)
12864 .or_insert((Vec::new(), None))
12865 .0
12866 .push(range)
12867 }
12868 }
12869 }
12870 }
12871
12872 if new_selections_by_buffer.is_empty() {
12873 return;
12874 }
12875
12876 // We defer the pane interaction because we ourselves are a workspace item
12877 // and activating a new item causes the pane to call a method on us reentrantly,
12878 // which panics if we're on the stack.
12879 cx.window_context().defer(move |cx| {
12880 workspace.update(cx, |workspace, cx| {
12881 let pane = if split {
12882 workspace.adjacent_pane(cx)
12883 } else {
12884 workspace.active_pane().clone()
12885 };
12886
12887 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12888 let editor = buffer
12889 .read(cx)
12890 .file()
12891 .is_none()
12892 .then(|| {
12893 // Handle file-less buffers separately: those are not really the project items, so won't have a project path or entity id,
12894 // so `workspace.open_project_item` will never find them, always opening a new editor.
12895 // Instead, we try to activate the existing editor in the pane first.
12896 let (editor, pane_item_index) =
12897 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12898 let editor = item.downcast::<Editor>()?;
12899 let singleton_buffer =
12900 editor.read(cx).buffer().read(cx).as_singleton()?;
12901 if singleton_buffer == buffer {
12902 Some((editor, i))
12903 } else {
12904 None
12905 }
12906 })?;
12907 pane.update(cx, |pane, cx| {
12908 pane.activate_item(pane_item_index, true, true, cx)
12909 });
12910 Some(editor)
12911 })
12912 .flatten()
12913 .unwrap_or_else(|| {
12914 workspace.open_project_item::<Self>(
12915 pane.clone(),
12916 buffer,
12917 true,
12918 true,
12919 cx,
12920 )
12921 });
12922
12923 editor.update(cx, |editor, cx| {
12924 let autoscroll = match scroll_offset {
12925 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12926 None => Autoscroll::newest(),
12927 };
12928 let nav_history = editor.nav_history.take();
12929 editor.change_selections(Some(autoscroll), cx, |s| {
12930 s.select_ranges(ranges);
12931 });
12932 editor.nav_history = nav_history;
12933 });
12934 }
12935 })
12936 });
12937 }
12938
12939 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12940 let snapshot = self.buffer.read(cx).read(cx);
12941 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12942 Some(
12943 ranges
12944 .iter()
12945 .map(move |range| {
12946 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12947 })
12948 .collect(),
12949 )
12950 }
12951
12952 fn selection_replacement_ranges(
12953 &self,
12954 range: Range<OffsetUtf16>,
12955 cx: &mut AppContext,
12956 ) -> Vec<Range<OffsetUtf16>> {
12957 let selections = self.selections.all::<OffsetUtf16>(cx);
12958 let newest_selection = selections
12959 .iter()
12960 .max_by_key(|selection| selection.id)
12961 .unwrap();
12962 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12963 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12964 let snapshot = self.buffer.read(cx).read(cx);
12965 selections
12966 .into_iter()
12967 .map(|mut selection| {
12968 selection.start.0 =
12969 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12970 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12971 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12972 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12973 })
12974 .collect()
12975 }
12976
12977 fn report_editor_event(
12978 &self,
12979 event_type: &'static str,
12980 file_extension: Option<String>,
12981 cx: &AppContext,
12982 ) {
12983 if cfg!(any(test, feature = "test-support")) {
12984 return;
12985 }
12986
12987 let Some(project) = &self.project else { return };
12988
12989 // If None, we are in a file without an extension
12990 let file = self
12991 .buffer
12992 .read(cx)
12993 .as_singleton()
12994 .and_then(|b| b.read(cx).file());
12995 let file_extension = file_extension.or(file
12996 .as_ref()
12997 .and_then(|file| Path::new(file.file_name(cx)).extension())
12998 .and_then(|e| e.to_str())
12999 .map(|a| a.to_string()));
13000
13001 let vim_mode = cx
13002 .global::<SettingsStore>()
13003 .raw_user_settings()
13004 .get("vim_mode")
13005 == Some(&serde_json::Value::Bool(true));
13006
13007 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
13008 == language::language_settings::InlineCompletionProvider::Copilot;
13009 let copilot_enabled_for_language = self
13010 .buffer
13011 .read(cx)
13012 .settings_at(0, cx)
13013 .show_inline_completions;
13014
13015 let project = project.read(cx);
13016 telemetry::event!(
13017 event_type,
13018 file_extension,
13019 vim_mode,
13020 copilot_enabled,
13021 copilot_enabled_for_language,
13022 is_via_ssh = project.is_via_ssh(),
13023 );
13024 }
13025
13026 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
13027 /// with each line being an array of {text, highlight} objects.
13028 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
13029 #[derive(Serialize)]
13030 struct Chunk<'a> {
13031 text: String,
13032 highlight: Option<&'a str>,
13033 }
13034
13035 let snapshot = self.buffer.read(cx).snapshot(cx);
13036 let range = self
13037 .selected_text_range(false, cx)
13038 .and_then(|selection| {
13039 if selection.range.is_empty() {
13040 None
13041 } else {
13042 Some(selection.range)
13043 }
13044 })
13045 .unwrap_or_else(|| 0..snapshot.len());
13046
13047 let chunks = snapshot.chunks(range, true);
13048 let mut lines = Vec::new();
13049 let mut line: VecDeque<Chunk> = VecDeque::new();
13050
13051 let Some(style) = self.style.as_ref() else {
13052 return;
13053 };
13054
13055 for chunk in chunks {
13056 let highlight = chunk
13057 .syntax_highlight_id
13058 .and_then(|id| id.name(&style.syntax));
13059 let mut chunk_lines = chunk.text.split('\n').peekable();
13060 while let Some(text) = chunk_lines.next() {
13061 let mut merged_with_last_token = false;
13062 if let Some(last_token) = line.back_mut() {
13063 if last_token.highlight == highlight {
13064 last_token.text.push_str(text);
13065 merged_with_last_token = true;
13066 }
13067 }
13068
13069 if !merged_with_last_token {
13070 line.push_back(Chunk {
13071 text: text.into(),
13072 highlight,
13073 });
13074 }
13075
13076 if chunk_lines.peek().is_some() {
13077 if line.len() > 1 && line.front().unwrap().text.is_empty() {
13078 line.pop_front();
13079 }
13080 if line.len() > 1 && line.back().unwrap().text.is_empty() {
13081 line.pop_back();
13082 }
13083
13084 lines.push(mem::take(&mut line));
13085 }
13086 }
13087 }
13088
13089 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
13090 return;
13091 };
13092 cx.write_to_clipboard(ClipboardItem::new_string(lines));
13093 }
13094
13095 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
13096 self.request_autoscroll(Autoscroll::newest(), cx);
13097 let position = self.selections.newest_display(cx).start;
13098 mouse_context_menu::deploy_context_menu(self, None, position, cx);
13099 }
13100
13101 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
13102 &self.inlay_hint_cache
13103 }
13104
13105 pub fn replay_insert_event(
13106 &mut self,
13107 text: &str,
13108 relative_utf16_range: Option<Range<isize>>,
13109 cx: &mut ViewContext<Self>,
13110 ) {
13111 if !self.input_enabled {
13112 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13113 return;
13114 }
13115 if let Some(relative_utf16_range) = relative_utf16_range {
13116 let selections = self.selections.all::<OffsetUtf16>(cx);
13117 self.change_selections(None, cx, |s| {
13118 let new_ranges = selections.into_iter().map(|range| {
13119 let start = OffsetUtf16(
13120 range
13121 .head()
13122 .0
13123 .saturating_add_signed(relative_utf16_range.start),
13124 );
13125 let end = OffsetUtf16(
13126 range
13127 .head()
13128 .0
13129 .saturating_add_signed(relative_utf16_range.end),
13130 );
13131 start..end
13132 });
13133 s.select_ranges(new_ranges);
13134 });
13135 }
13136
13137 self.handle_input(text, cx);
13138 }
13139
13140 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
13141 let Some(provider) = self.semantics_provider.as_ref() else {
13142 return false;
13143 };
13144
13145 let mut supports = false;
13146 self.buffer().read(cx).for_each_buffer(|buffer| {
13147 supports |= provider.supports_inlay_hints(buffer, cx);
13148 });
13149 supports
13150 }
13151
13152 pub fn focus(&self, cx: &mut WindowContext) {
13153 cx.focus(&self.focus_handle)
13154 }
13155
13156 pub fn is_focused(&self, cx: &WindowContext) -> bool {
13157 self.focus_handle.is_focused(cx)
13158 }
13159
13160 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
13161 cx.emit(EditorEvent::Focused);
13162
13163 if let Some(descendant) = self
13164 .last_focused_descendant
13165 .take()
13166 .and_then(|descendant| descendant.upgrade())
13167 {
13168 cx.focus(&descendant);
13169 } else {
13170 if let Some(blame) = self.blame.as_ref() {
13171 blame.update(cx, GitBlame::focus)
13172 }
13173
13174 self.blink_manager.update(cx, BlinkManager::enable);
13175 self.show_cursor_names(cx);
13176 self.buffer.update(cx, |buffer, cx| {
13177 buffer.finalize_last_transaction(cx);
13178 if self.leader_peer_id.is_none() {
13179 buffer.set_active_selections(
13180 &self.selections.disjoint_anchors(),
13181 self.selections.line_mode,
13182 self.cursor_shape,
13183 cx,
13184 );
13185 }
13186 });
13187 }
13188 }
13189
13190 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
13191 cx.emit(EditorEvent::FocusedIn)
13192 }
13193
13194 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
13195 if event.blurred != self.focus_handle {
13196 self.last_focused_descendant = Some(event.blurred);
13197 }
13198 }
13199
13200 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
13201 self.blink_manager.update(cx, BlinkManager::disable);
13202 self.buffer
13203 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
13204
13205 if let Some(blame) = self.blame.as_ref() {
13206 blame.update(cx, GitBlame::blur)
13207 }
13208 if !self.hover_state.focused(cx) {
13209 hide_hover(self, cx);
13210 }
13211
13212 self.hide_context_menu(cx);
13213 cx.emit(EditorEvent::Blurred);
13214 cx.notify();
13215 }
13216
13217 pub fn register_action<A: Action>(
13218 &mut self,
13219 listener: impl Fn(&A, &mut WindowContext) + 'static,
13220 ) -> Subscription {
13221 let id = self.next_editor_action_id.post_inc();
13222 let listener = Arc::new(listener);
13223 self.editor_actions.borrow_mut().insert(
13224 id,
13225 Box::new(move |cx| {
13226 let cx = cx.window_context();
13227 let listener = listener.clone();
13228 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
13229 let action = action.downcast_ref().unwrap();
13230 if phase == DispatchPhase::Bubble {
13231 listener(action, cx)
13232 }
13233 })
13234 }),
13235 );
13236
13237 let editor_actions = self.editor_actions.clone();
13238 Subscription::new(move || {
13239 editor_actions.borrow_mut().remove(&id);
13240 })
13241 }
13242
13243 pub fn file_header_size(&self) -> u32 {
13244 FILE_HEADER_HEIGHT
13245 }
13246
13247 pub fn revert(
13248 &mut self,
13249 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13250 cx: &mut ViewContext<Self>,
13251 ) {
13252 self.buffer().update(cx, |multi_buffer, cx| {
13253 for (buffer_id, changes) in revert_changes {
13254 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13255 buffer.update(cx, |buffer, cx| {
13256 buffer.edit(
13257 changes.into_iter().map(|(range, text)| {
13258 (range, text.to_string().map(Arc::<str>::from))
13259 }),
13260 None,
13261 cx,
13262 );
13263 });
13264 }
13265 }
13266 });
13267 self.change_selections(None, cx, |selections| selections.refresh());
13268 }
13269
13270 pub fn to_pixel_point(
13271 &self,
13272 source: multi_buffer::Anchor,
13273 editor_snapshot: &EditorSnapshot,
13274 cx: &mut ViewContext<Self>,
13275 ) -> Option<gpui::Point<Pixels>> {
13276 let source_point = source.to_display_point(editor_snapshot);
13277 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13278 }
13279
13280 pub fn display_to_pixel_point(
13281 &self,
13282 source: DisplayPoint,
13283 editor_snapshot: &EditorSnapshot,
13284 cx: &WindowContext,
13285 ) -> Option<gpui::Point<Pixels>> {
13286 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13287 let text_layout_details = self.text_layout_details(cx);
13288 let scroll_top = text_layout_details
13289 .scroll_anchor
13290 .scroll_position(editor_snapshot)
13291 .y;
13292
13293 if source.row().as_f32() < scroll_top.floor() {
13294 return None;
13295 }
13296 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13297 let source_y = line_height * (source.row().as_f32() - scroll_top);
13298 Some(gpui::Point::new(source_x, source_y))
13299 }
13300
13301 pub fn has_active_completions_menu(&self) -> bool {
13302 self.context_menu.borrow().as_ref().map_or(false, |menu| {
13303 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
13304 })
13305 }
13306
13307 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13308 self.addons
13309 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13310 }
13311
13312 pub fn unregister_addon<T: Addon>(&mut self) {
13313 self.addons.remove(&std::any::TypeId::of::<T>());
13314 }
13315
13316 pub fn addon<T: Addon>(&self) -> Option<&T> {
13317 let type_id = std::any::TypeId::of::<T>();
13318 self.addons
13319 .get(&type_id)
13320 .and_then(|item| item.to_any().downcast_ref::<T>())
13321 }
13322
13323 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
13324 let text_layout_details = self.text_layout_details(cx);
13325 let style = &text_layout_details.editor_style;
13326 let font_id = cx.text_system().resolve_font(&style.text.font());
13327 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13328 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13329
13330 let em_width = cx
13331 .text_system()
13332 .typographic_bounds(font_id, font_size, 'm')
13333 .unwrap()
13334 .size
13335 .width;
13336
13337 gpui::Point::new(em_width, line_height)
13338 }
13339}
13340
13341fn get_unstaged_changes_for_buffers(
13342 project: &Model<Project>,
13343 buffers: impl IntoIterator<Item = Model<Buffer>>,
13344 buffer: Model<MultiBuffer>,
13345 cx: &mut AppContext,
13346) {
13347 let mut tasks = Vec::new();
13348 project.update(cx, |project, cx| {
13349 for buffer in buffers {
13350 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
13351 }
13352 });
13353 cx.spawn(|mut cx| async move {
13354 let change_sets = futures::future::join_all(tasks).await;
13355 buffer
13356 .update(&mut cx, |buffer, cx| {
13357 for change_set in change_sets {
13358 if let Some(change_set) = change_set.log_err() {
13359 buffer.add_change_set(change_set, cx);
13360 }
13361 }
13362 })
13363 .ok();
13364 })
13365 .detach();
13366}
13367
13368fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13369 let tab_size = tab_size.get() as usize;
13370 let mut width = offset;
13371
13372 for ch in text.chars() {
13373 width += if ch == '\t' {
13374 tab_size - (width % tab_size)
13375 } else {
13376 1
13377 };
13378 }
13379
13380 width - offset
13381}
13382
13383#[cfg(test)]
13384mod tests {
13385 use super::*;
13386
13387 #[test]
13388 fn test_string_size_with_expanded_tabs() {
13389 let nz = |val| NonZeroU32::new(val).unwrap();
13390 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13391 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13392 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13393 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13394 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13395 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13396 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13397 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13398 }
13399}
13400
13401/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13402struct WordBreakingTokenizer<'a> {
13403 input: &'a str,
13404}
13405
13406impl<'a> WordBreakingTokenizer<'a> {
13407 fn new(input: &'a str) -> Self {
13408 Self { input }
13409 }
13410}
13411
13412fn is_char_ideographic(ch: char) -> bool {
13413 use unicode_script::Script::*;
13414 use unicode_script::UnicodeScript;
13415 matches!(ch.script(), Han | Tangut | Yi)
13416}
13417
13418fn is_grapheme_ideographic(text: &str) -> bool {
13419 text.chars().any(is_char_ideographic)
13420}
13421
13422fn is_grapheme_whitespace(text: &str) -> bool {
13423 text.chars().any(|x| x.is_whitespace())
13424}
13425
13426fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13427 text.chars().next().map_or(false, |ch| {
13428 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13429 })
13430}
13431
13432#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13433struct WordBreakToken<'a> {
13434 token: &'a str,
13435 grapheme_len: usize,
13436 is_whitespace: bool,
13437}
13438
13439impl<'a> Iterator for WordBreakingTokenizer<'a> {
13440 /// Yields a span, the count of graphemes in the token, and whether it was
13441 /// whitespace. Note that it also breaks at word boundaries.
13442 type Item = WordBreakToken<'a>;
13443
13444 fn next(&mut self) -> Option<Self::Item> {
13445 use unicode_segmentation::UnicodeSegmentation;
13446 if self.input.is_empty() {
13447 return None;
13448 }
13449
13450 let mut iter = self.input.graphemes(true).peekable();
13451 let mut offset = 0;
13452 let mut graphemes = 0;
13453 if let Some(first_grapheme) = iter.next() {
13454 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13455 offset += first_grapheme.len();
13456 graphemes += 1;
13457 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13458 if let Some(grapheme) = iter.peek().copied() {
13459 if should_stay_with_preceding_ideograph(grapheme) {
13460 offset += grapheme.len();
13461 graphemes += 1;
13462 }
13463 }
13464 } else {
13465 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13466 let mut next_word_bound = words.peek().copied();
13467 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13468 next_word_bound = words.next();
13469 }
13470 while let Some(grapheme) = iter.peek().copied() {
13471 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13472 break;
13473 };
13474 if is_grapheme_whitespace(grapheme) != is_whitespace {
13475 break;
13476 };
13477 offset += grapheme.len();
13478 graphemes += 1;
13479 iter.next();
13480 }
13481 }
13482 let token = &self.input[..offset];
13483 self.input = &self.input[offset..];
13484 if is_whitespace {
13485 Some(WordBreakToken {
13486 token: " ",
13487 grapheme_len: 1,
13488 is_whitespace: true,
13489 })
13490 } else {
13491 Some(WordBreakToken {
13492 token,
13493 grapheme_len: graphemes,
13494 is_whitespace: false,
13495 })
13496 }
13497 } else {
13498 None
13499 }
13500 }
13501}
13502
13503#[test]
13504fn test_word_breaking_tokenizer() {
13505 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13506 ("", &[]),
13507 (" ", &[(" ", 1, true)]),
13508 ("Ʒ", &[("Ʒ", 1, false)]),
13509 ("Ǽ", &[("Ǽ", 1, false)]),
13510 ("⋑", &[("⋑", 1, false)]),
13511 ("⋑⋑", &[("⋑⋑", 2, false)]),
13512 (
13513 "原理，进而",
13514 &[
13515 ("原", 1, false),
13516 ("理，", 2, false),
13517 ("进", 1, false),
13518 ("而", 1, false),
13519 ],
13520 ),
13521 (
13522 "hello world",
13523 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13524 ),
13525 (
13526 "hello, world",
13527 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13528 ),
13529 (
13530 " hello world",
13531 &[
13532 (" ", 1, true),
13533 ("hello", 5, false),
13534 (" ", 1, true),
13535 ("world", 5, false),
13536 ],
13537 ),
13538 (
13539 "这是什么 \n 钢笔",
13540 &[
13541 ("这", 1, false),
13542 ("是", 1, false),
13543 ("什", 1, false),
13544 ("么", 1, false),
13545 (" ", 1, true),
13546 ("钢", 1, false),
13547 ("笔", 1, false),
13548 ],
13549 ),
13550 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13551 ];
13552
13553 for (input, result) in tests {
13554 assert_eq!(
13555 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13556 result
13557 .iter()
13558 .copied()
13559 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13560 token,
13561 grapheme_len,
13562 is_whitespace,
13563 })
13564 .collect::<Vec<_>>()
13565 );
13566 }
13567}
13568
13569fn wrap_with_prefix(
13570 line_prefix: String,
13571 unwrapped_text: String,
13572 wrap_column: usize,
13573 tab_size: NonZeroU32,
13574) -> String {
13575 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13576 let mut wrapped_text = String::new();
13577 let mut current_line = line_prefix.clone();
13578
13579 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13580 let mut current_line_len = line_prefix_len;
13581 for WordBreakToken {
13582 token,
13583 grapheme_len,
13584 is_whitespace,
13585 } in tokenizer
13586 {
13587 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13588 wrapped_text.push_str(current_line.trim_end());
13589 wrapped_text.push('\n');
13590 current_line.truncate(line_prefix.len());
13591 current_line_len = line_prefix_len;
13592 if !is_whitespace {
13593 current_line.push_str(token);
13594 current_line_len += grapheme_len;
13595 }
13596 } else if !is_whitespace {
13597 current_line.push_str(token);
13598 current_line_len += grapheme_len;
13599 } else if current_line_len != line_prefix_len {
13600 current_line.push(' ');
13601 current_line_len += 1;
13602 }
13603 }
13604
13605 if !current_line.is_empty() {
13606 wrapped_text.push_str(¤t_line);
13607 }
13608 wrapped_text
13609}
13610
13611#[test]
13612fn test_wrap_with_prefix() {
13613 assert_eq!(
13614 wrap_with_prefix(
13615 "# ".to_string(),
13616 "abcdefg".to_string(),
13617 4,
13618 NonZeroU32::new(4).unwrap()
13619 ),
13620 "# abcdefg"
13621 );
13622 assert_eq!(
13623 wrap_with_prefix(
13624 "".to_string(),
13625 "\thello world".to_string(),
13626 8,
13627 NonZeroU32::new(4).unwrap()
13628 ),
13629 "hello\nworld"
13630 );
13631 assert_eq!(
13632 wrap_with_prefix(
13633 "// ".to_string(),
13634 "xx \nyy zz aa bb cc".to_string(),
13635 12,
13636 NonZeroU32::new(4).unwrap()
13637 ),
13638 "// xx yy zz\n// aa bb cc"
13639 );
13640 assert_eq!(
13641 wrap_with_prefix(
13642 String::new(),
13643 "这是什么 \n 钢笔".to_string(),
13644 3,
13645 NonZeroU32::new(4).unwrap()
13646 ),
13647 "这是什\n么 钢\n笔"
13648 );
13649}
13650
13651pub trait CollaborationHub {
13652 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13653 fn user_participant_indices<'a>(
13654 &self,
13655 cx: &'a AppContext,
13656 ) -> &'a HashMap<u64, ParticipantIndex>;
13657 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13658}
13659
13660impl CollaborationHub for Model<Project> {
13661 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13662 self.read(cx).collaborators()
13663 }
13664
13665 fn user_participant_indices<'a>(
13666 &self,
13667 cx: &'a AppContext,
13668 ) -> &'a HashMap<u64, ParticipantIndex> {
13669 self.read(cx).user_store().read(cx).participant_indices()
13670 }
13671
13672 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13673 let this = self.read(cx);
13674 let user_ids = this.collaborators().values().map(|c| c.user_id);
13675 this.user_store().read_with(cx, |user_store, cx| {
13676 user_store.participant_names(user_ids, cx)
13677 })
13678 }
13679}
13680
13681pub trait SemanticsProvider {
13682 fn hover(
13683 &self,
13684 buffer: &Model<Buffer>,
13685 position: text::Anchor,
13686 cx: &mut AppContext,
13687 ) -> Option<Task<Vec<project::Hover>>>;
13688
13689 fn inlay_hints(
13690 &self,
13691 buffer_handle: Model<Buffer>,
13692 range: Range<text::Anchor>,
13693 cx: &mut AppContext,
13694 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13695
13696 fn resolve_inlay_hint(
13697 &self,
13698 hint: InlayHint,
13699 buffer_handle: Model<Buffer>,
13700 server_id: LanguageServerId,
13701 cx: &mut AppContext,
13702 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13703
13704 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13705
13706 fn document_highlights(
13707 &self,
13708 buffer: &Model<Buffer>,
13709 position: text::Anchor,
13710 cx: &mut AppContext,
13711 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13712
13713 fn definitions(
13714 &self,
13715 buffer: &Model<Buffer>,
13716 position: text::Anchor,
13717 kind: GotoDefinitionKind,
13718 cx: &mut AppContext,
13719 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13720
13721 fn range_for_rename(
13722 &self,
13723 buffer: &Model<Buffer>,
13724 position: text::Anchor,
13725 cx: &mut AppContext,
13726 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13727
13728 fn perform_rename(
13729 &self,
13730 buffer: &Model<Buffer>,
13731 position: text::Anchor,
13732 new_name: String,
13733 cx: &mut AppContext,
13734 ) -> Option<Task<Result<ProjectTransaction>>>;
13735}
13736
13737pub trait CompletionProvider {
13738 fn completions(
13739 &self,
13740 buffer: &Model<Buffer>,
13741 buffer_position: text::Anchor,
13742 trigger: CompletionContext,
13743 cx: &mut ViewContext<Editor>,
13744 ) -> Task<Result<Vec<Completion>>>;
13745
13746 fn resolve_completions(
13747 &self,
13748 buffer: Model<Buffer>,
13749 completion_indices: Vec<usize>,
13750 completions: Rc<RefCell<Box<[Completion]>>>,
13751 cx: &mut ViewContext<Editor>,
13752 ) -> Task<Result<bool>>;
13753
13754 fn apply_additional_edits_for_completion(
13755 &self,
13756 _buffer: Model<Buffer>,
13757 _completions: Rc<RefCell<Box<[Completion]>>>,
13758 _completion_index: usize,
13759 _push_to_history: bool,
13760 _cx: &mut ViewContext<Editor>,
13761 ) -> Task<Result<Option<language::Transaction>>> {
13762 Task::ready(Ok(None))
13763 }
13764
13765 fn is_completion_trigger(
13766 &self,
13767 buffer: &Model<Buffer>,
13768 position: language::Anchor,
13769 text: &str,
13770 trigger_in_words: bool,
13771 cx: &mut ViewContext<Editor>,
13772 ) -> bool;
13773
13774 fn sort_completions(&self) -> bool {
13775 true
13776 }
13777}
13778
13779pub trait CodeActionProvider {
13780 fn id(&self) -> Arc<str>;
13781
13782 fn code_actions(
13783 &self,
13784 buffer: &Model<Buffer>,
13785 range: Range<text::Anchor>,
13786 cx: &mut WindowContext,
13787 ) -> Task<Result<Vec<CodeAction>>>;
13788
13789 fn apply_code_action(
13790 &self,
13791 buffer_handle: Model<Buffer>,
13792 action: CodeAction,
13793 excerpt_id: ExcerptId,
13794 push_to_history: bool,
13795 cx: &mut WindowContext,
13796 ) -> Task<Result<ProjectTransaction>>;
13797}
13798
13799impl CodeActionProvider for Model<Project> {
13800 fn id(&self) -> Arc<str> {
13801 "project".into()
13802 }
13803
13804 fn code_actions(
13805 &self,
13806 buffer: &Model<Buffer>,
13807 range: Range<text::Anchor>,
13808 cx: &mut WindowContext,
13809 ) -> Task<Result<Vec<CodeAction>>> {
13810 self.update(cx, |project, cx| {
13811 project.code_actions(buffer, range, None, cx)
13812 })
13813 }
13814
13815 fn apply_code_action(
13816 &self,
13817 buffer_handle: Model<Buffer>,
13818 action: CodeAction,
13819 _excerpt_id: ExcerptId,
13820 push_to_history: bool,
13821 cx: &mut WindowContext,
13822 ) -> Task<Result<ProjectTransaction>> {
13823 self.update(cx, |project, cx| {
13824 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13825 })
13826 }
13827}
13828
13829fn snippet_completions(
13830 project: &Project,
13831 buffer: &Model<Buffer>,
13832 buffer_position: text::Anchor,
13833 cx: &mut AppContext,
13834) -> Task<Result<Vec<Completion>>> {
13835 let language = buffer.read(cx).language_at(buffer_position);
13836 let language_name = language.as_ref().map(|language| language.lsp_id());
13837 let snippet_store = project.snippets().read(cx);
13838 let snippets = snippet_store.snippets_for(language_name, cx);
13839
13840 if snippets.is_empty() {
13841 return Task::ready(Ok(vec![]));
13842 }
13843 let snapshot = buffer.read(cx).text_snapshot();
13844 let chars: String = snapshot
13845 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13846 .collect();
13847
13848 let scope = language.map(|language| language.default_scope());
13849 let executor = cx.background_executor().clone();
13850
13851 cx.background_executor().spawn(async move {
13852 let classifier = CharClassifier::new(scope).for_completion(true);
13853 let mut last_word = chars
13854 .chars()
13855 .take_while(|c| classifier.is_word(*c))
13856 .collect::<String>();
13857 last_word = last_word.chars().rev().collect();
13858
13859 if last_word.is_empty() {
13860 return Ok(vec![]);
13861 }
13862
13863 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13864 let to_lsp = |point: &text::Anchor| {
13865 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13866 point_to_lsp(end)
13867 };
13868 let lsp_end = to_lsp(&buffer_position);
13869
13870 let candidates = snippets
13871 .iter()
13872 .enumerate()
13873 .flat_map(|(ix, snippet)| {
13874 snippet
13875 .prefix
13876 .iter()
13877 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13878 })
13879 .collect::<Vec<StringMatchCandidate>>();
13880
13881 let mut matches = fuzzy::match_strings(
13882 &candidates,
13883 &last_word,
13884 last_word.chars().any(|c| c.is_uppercase()),
13885 100,
13886 &Default::default(),
13887 executor,
13888 )
13889 .await;
13890
13891 // Remove all candidates where the query's start does not match the start of any word in the candidate
13892 if let Some(query_start) = last_word.chars().next() {
13893 matches.retain(|string_match| {
13894 split_words(&string_match.string).any(|word| {
13895 // Check that the first codepoint of the word as lowercase matches the first
13896 // codepoint of the query as lowercase
13897 word.chars()
13898 .flat_map(|codepoint| codepoint.to_lowercase())
13899 .zip(query_start.to_lowercase())
13900 .all(|(word_cp, query_cp)| word_cp == query_cp)
13901 })
13902 });
13903 }
13904
13905 let matched_strings = matches
13906 .into_iter()
13907 .map(|m| m.string)
13908 .collect::<HashSet<_>>();
13909
13910 let result: Vec<Completion> = snippets
13911 .into_iter()
13912 .filter_map(|snippet| {
13913 let matching_prefix = snippet
13914 .prefix
13915 .iter()
13916 .find(|prefix| matched_strings.contains(*prefix))?;
13917 let start = as_offset - last_word.len();
13918 let start = snapshot.anchor_before(start);
13919 let range = start..buffer_position;
13920 let lsp_start = to_lsp(&start);
13921 let lsp_range = lsp::Range {
13922 start: lsp_start,
13923 end: lsp_end,
13924 };
13925 Some(Completion {
13926 old_range: range,
13927 new_text: snippet.body.clone(),
13928 resolved: false,
13929 label: CodeLabel {
13930 text: matching_prefix.clone(),
13931 runs: vec![],
13932 filter_range: 0..matching_prefix.len(),
13933 },
13934 server_id: LanguageServerId(usize::MAX),
13935 documentation: snippet.description.clone().map(Documentation::SingleLine),
13936 lsp_completion: lsp::CompletionItem {
13937 label: snippet.prefix.first().unwrap().clone(),
13938 kind: Some(CompletionItemKind::SNIPPET),
13939 label_details: snippet.description.as_ref().map(|description| {
13940 lsp::CompletionItemLabelDetails {
13941 detail: Some(description.clone()),
13942 description: None,
13943 }
13944 }),
13945 insert_text_format: Some(InsertTextFormat::SNIPPET),
13946 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13947 lsp::InsertReplaceEdit {
13948 new_text: snippet.body.clone(),
13949 insert: lsp_range,
13950 replace: lsp_range,
13951 },
13952 )),
13953 filter_text: Some(snippet.body.clone()),
13954 sort_text: Some(char::MAX.to_string()),
13955 ..Default::default()
13956 },
13957 confirm: None,
13958 })
13959 })
13960 .collect();
13961
13962 Ok(result)
13963 })
13964}
13965
13966impl CompletionProvider for Model<Project> {
13967 fn completions(
13968 &self,
13969 buffer: &Model<Buffer>,
13970 buffer_position: text::Anchor,
13971 options: CompletionContext,
13972 cx: &mut ViewContext<Editor>,
13973 ) -> Task<Result<Vec<Completion>>> {
13974 self.update(cx, |project, cx| {
13975 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13976 let project_completions = project.completions(buffer, buffer_position, options, cx);
13977 cx.background_executor().spawn(async move {
13978 let mut completions = project_completions.await?;
13979 let snippets_completions = snippets.await?;
13980 completions.extend(snippets_completions);
13981 Ok(completions)
13982 })
13983 })
13984 }
13985
13986 fn resolve_completions(
13987 &self,
13988 buffer: Model<Buffer>,
13989 completion_indices: Vec<usize>,
13990 completions: Rc<RefCell<Box<[Completion]>>>,
13991 cx: &mut ViewContext<Editor>,
13992 ) -> Task<Result<bool>> {
13993 self.update(cx, |project, cx| {
13994 project.lsp_store().update(cx, |lsp_store, cx| {
13995 lsp_store.resolve_completions(buffer, completion_indices, completions, cx)
13996 })
13997 })
13998 }
13999
14000 fn apply_additional_edits_for_completion(
14001 &self,
14002 buffer: Model<Buffer>,
14003 completions: Rc<RefCell<Box<[Completion]>>>,
14004 completion_index: usize,
14005 push_to_history: bool,
14006 cx: &mut ViewContext<Editor>,
14007 ) -> Task<Result<Option<language::Transaction>>> {
14008 self.update(cx, |project, cx| {
14009 project.lsp_store().update(cx, |lsp_store, cx| {
14010 lsp_store.apply_additional_edits_for_completion(
14011 buffer,
14012 completions,
14013 completion_index,
14014 push_to_history,
14015 cx,
14016 )
14017 })
14018 })
14019 }
14020
14021 fn is_completion_trigger(
14022 &self,
14023 buffer: &Model<Buffer>,
14024 position: language::Anchor,
14025 text: &str,
14026 trigger_in_words: bool,
14027 cx: &mut ViewContext<Editor>,
14028 ) -> bool {
14029 let mut chars = text.chars();
14030 let char = if let Some(char) = chars.next() {
14031 char
14032 } else {
14033 return false;
14034 };
14035 if chars.next().is_some() {
14036 return false;
14037 }
14038
14039 let buffer = buffer.read(cx);
14040 let snapshot = buffer.snapshot();
14041 if !snapshot.settings_at(position, cx).show_completions_on_input {
14042 return false;
14043 }
14044 let classifier = snapshot.char_classifier_at(position).for_completion(true);
14045 if trigger_in_words && classifier.is_word(char) {
14046 return true;
14047 }
14048
14049 buffer.completion_triggers().contains(text)
14050 }
14051}
14052
14053impl SemanticsProvider for Model<Project> {
14054 fn hover(
14055 &self,
14056 buffer: &Model<Buffer>,
14057 position: text::Anchor,
14058 cx: &mut AppContext,
14059 ) -> Option<Task<Vec<project::Hover>>> {
14060 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
14061 }
14062
14063 fn document_highlights(
14064 &self,
14065 buffer: &Model<Buffer>,
14066 position: text::Anchor,
14067 cx: &mut AppContext,
14068 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
14069 Some(self.update(cx, |project, cx| {
14070 project.document_highlights(buffer, position, cx)
14071 }))
14072 }
14073
14074 fn definitions(
14075 &self,
14076 buffer: &Model<Buffer>,
14077 position: text::Anchor,
14078 kind: GotoDefinitionKind,
14079 cx: &mut AppContext,
14080 ) -> Option<Task<Result<Vec<LocationLink>>>> {
14081 Some(self.update(cx, |project, cx| match kind {
14082 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
14083 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
14084 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
14085 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
14086 }))
14087 }
14088
14089 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
14090 // TODO: make this work for remote projects
14091 self.read(cx)
14092 .language_servers_for_local_buffer(buffer.read(cx), cx)
14093 .any(
14094 |(_, server)| match server.capabilities().inlay_hint_provider {
14095 Some(lsp::OneOf::Left(enabled)) => enabled,
14096 Some(lsp::OneOf::Right(_)) => true,
14097 None => false,
14098 },
14099 )
14100 }
14101
14102 fn inlay_hints(
14103 &self,
14104 buffer_handle: Model<Buffer>,
14105 range: Range<text::Anchor>,
14106 cx: &mut AppContext,
14107 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
14108 Some(self.update(cx, |project, cx| {
14109 project.inlay_hints(buffer_handle, range, cx)
14110 }))
14111 }
14112
14113 fn resolve_inlay_hint(
14114 &self,
14115 hint: InlayHint,
14116 buffer_handle: Model<Buffer>,
14117 server_id: LanguageServerId,
14118 cx: &mut AppContext,
14119 ) -> Option<Task<anyhow::Result<InlayHint>>> {
14120 Some(self.update(cx, |project, cx| {
14121 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
14122 }))
14123 }
14124
14125 fn range_for_rename(
14126 &self,
14127 buffer: &Model<Buffer>,
14128 position: text::Anchor,
14129 cx: &mut AppContext,
14130 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
14131 Some(self.update(cx, |project, cx| {
14132 let buffer = buffer.clone();
14133 let task = project.prepare_rename(buffer.clone(), position, cx);
14134 cx.spawn(|_, mut cx| async move {
14135 Ok(match task.await? {
14136 PrepareRenameResponse::Success(range) => Some(range),
14137 PrepareRenameResponse::InvalidPosition => None,
14138 PrepareRenameResponse::OnlyUnpreparedRenameSupported => {
14139 // Fallback on using TreeSitter info to determine identifier range
14140 buffer.update(&mut cx, |buffer, _| {
14141 let snapshot = buffer.snapshot();
14142 let (range, kind) = snapshot.surrounding_word(position);
14143 if kind != Some(CharKind::Word) {
14144 return None;
14145 }
14146 Some(
14147 snapshot.anchor_before(range.start)
14148 ..snapshot.anchor_after(range.end),
14149 )
14150 })?
14151 }
14152 })
14153 })
14154 }))
14155 }
14156
14157 fn perform_rename(
14158 &self,
14159 buffer: &Model<Buffer>,
14160 position: text::Anchor,
14161 new_name: String,
14162 cx: &mut AppContext,
14163 ) -> Option<Task<Result<ProjectTransaction>>> {
14164 Some(self.update(cx, |project, cx| {
14165 project.perform_rename(buffer.clone(), position, new_name, cx)
14166 }))
14167 }
14168}
14169
14170fn inlay_hint_settings(
14171 location: Anchor,
14172 snapshot: &MultiBufferSnapshot,
14173 cx: &mut ViewContext<Editor>,
14174) -> InlayHintSettings {
14175 let file = snapshot.file_at(location);
14176 let language = snapshot.language_at(location).map(|l| l.name());
14177 language_settings(language, file, cx).inlay_hints
14178}
14179
14180fn consume_contiguous_rows(
14181 contiguous_row_selections: &mut Vec<Selection<Point>>,
14182 selection: &Selection<Point>,
14183 display_map: &DisplaySnapshot,
14184 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
14185) -> (MultiBufferRow, MultiBufferRow) {
14186 contiguous_row_selections.push(selection.clone());
14187 let start_row = MultiBufferRow(selection.start.row);
14188 let mut end_row = ending_row(selection, display_map);
14189
14190 while let Some(next_selection) = selections.peek() {
14191 if next_selection.start.row <= end_row.0 {
14192 end_row = ending_row(next_selection, display_map);
14193 contiguous_row_selections.push(selections.next().unwrap().clone());
14194 } else {
14195 break;
14196 }
14197 }
14198 (start_row, end_row)
14199}
14200
14201fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
14202 if next_selection.end.column > 0 || next_selection.is_empty() {
14203 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
14204 } else {
14205 MultiBufferRow(next_selection.end.row)
14206 }
14207}
14208
14209impl EditorSnapshot {
14210 pub fn remote_selections_in_range<'a>(
14211 &'a self,
14212 range: &'a Range<Anchor>,
14213 collaboration_hub: &dyn CollaborationHub,
14214 cx: &'a AppContext,
14215 ) -> impl 'a + Iterator<Item = RemoteSelection> {
14216 let participant_names = collaboration_hub.user_names(cx);
14217 let participant_indices = collaboration_hub.user_participant_indices(cx);
14218 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
14219 let collaborators_by_replica_id = collaborators_by_peer_id
14220 .iter()
14221 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
14222 .collect::<HashMap<_, _>>();
14223 self.buffer_snapshot
14224 .selections_in_range(range, false)
14225 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
14226 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
14227 let participant_index = participant_indices.get(&collaborator.user_id).copied();
14228 let user_name = participant_names.get(&collaborator.user_id).cloned();
14229 Some(RemoteSelection {
14230 replica_id,
14231 selection,
14232 cursor_shape,
14233 line_mode,
14234 participant_index,
14235 peer_id: collaborator.peer_id,
14236 user_name,
14237 })
14238 })
14239 }
14240
14241 pub fn hunks_for_ranges(
14242 &self,
14243 ranges: impl Iterator<Item = Range<Point>>,
14244 ) -> Vec<MultiBufferDiffHunk> {
14245 let mut hunks = Vec::new();
14246 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
14247 HashMap::default();
14248 for query_range in ranges {
14249 let query_rows =
14250 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
14251 for hunk in self.buffer_snapshot.diff_hunks_in_range(
14252 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
14253 ) {
14254 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
14255 // when the caret is just above or just below the deleted hunk.
14256 let allow_adjacent = hunk.status() == DiffHunkStatus::Removed;
14257 let related_to_selection = if allow_adjacent {
14258 hunk.row_range.overlaps(&query_rows)
14259 || hunk.row_range.start == query_rows.end
14260 || hunk.row_range.end == query_rows.start
14261 } else {
14262 hunk.row_range.overlaps(&query_rows)
14263 };
14264 if related_to_selection {
14265 if !processed_buffer_rows
14266 .entry(hunk.buffer_id)
14267 .or_default()
14268 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
14269 {
14270 continue;
14271 }
14272 hunks.push(hunk);
14273 }
14274 }
14275 }
14276
14277 hunks
14278 }
14279
14280 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
14281 self.display_snapshot.buffer_snapshot.language_at(position)
14282 }
14283
14284 pub fn is_focused(&self) -> bool {
14285 self.is_focused
14286 }
14287
14288 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14289 self.placeholder_text.as_ref()
14290 }
14291
14292 pub fn scroll_position(&self) -> gpui::Point<f32> {
14293 self.scroll_anchor.scroll_position(&self.display_snapshot)
14294 }
14295
14296 fn gutter_dimensions(
14297 &self,
14298 font_id: FontId,
14299 font_size: Pixels,
14300 em_width: Pixels,
14301 em_advance: Pixels,
14302 max_line_number_width: Pixels,
14303 cx: &AppContext,
14304 ) -> GutterDimensions {
14305 if !self.show_gutter {
14306 return GutterDimensions::default();
14307 }
14308 let descent = cx.text_system().descent(font_id, font_size);
14309
14310 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14311 matches!(
14312 ProjectSettings::get_global(cx).git.git_gutter,
14313 Some(GitGutterSetting::TrackedFiles)
14314 )
14315 });
14316 let gutter_settings = EditorSettings::get_global(cx).gutter;
14317 let show_line_numbers = self
14318 .show_line_numbers
14319 .unwrap_or(gutter_settings.line_numbers);
14320 let line_gutter_width = if show_line_numbers {
14321 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14322 let min_width_for_number_on_gutter = em_advance * 4.0;
14323 max_line_number_width.max(min_width_for_number_on_gutter)
14324 } else {
14325 0.0.into()
14326 };
14327
14328 let show_code_actions = self
14329 .show_code_actions
14330 .unwrap_or(gutter_settings.code_actions);
14331
14332 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14333
14334 let git_blame_entries_width =
14335 self.git_blame_gutter_max_author_length
14336 .map(|max_author_length| {
14337 // Length of the author name, but also space for the commit hash,
14338 // the spacing and the timestamp.
14339 let max_char_count = max_author_length
14340 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14341 + 7 // length of commit sha
14342 + 14 // length of max relative timestamp ("60 minutes ago")
14343 + 4; // gaps and margins
14344
14345 em_advance * max_char_count
14346 });
14347
14348 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14349 left_padding += if show_code_actions || show_runnables {
14350 em_width * 3.0
14351 } else if show_git_gutter && show_line_numbers {
14352 em_width * 2.0
14353 } else if show_git_gutter || show_line_numbers {
14354 em_width
14355 } else {
14356 px(0.)
14357 };
14358
14359 let right_padding = if gutter_settings.folds && show_line_numbers {
14360 em_width * 4.0
14361 } else if gutter_settings.folds {
14362 em_width * 3.0
14363 } else if show_line_numbers {
14364 em_width
14365 } else {
14366 px(0.)
14367 };
14368
14369 GutterDimensions {
14370 left_padding,
14371 right_padding,
14372 width: line_gutter_width + left_padding + right_padding,
14373 margin: -descent,
14374 git_blame_entries_width,
14375 }
14376 }
14377
14378 pub fn render_crease_toggle(
14379 &self,
14380 buffer_row: MultiBufferRow,
14381 row_contains_cursor: bool,
14382 editor: View<Editor>,
14383 cx: &mut WindowContext,
14384 ) -> Option<AnyElement> {
14385 let folded = self.is_line_folded(buffer_row);
14386 let mut is_foldable = false;
14387
14388 if let Some(crease) = self
14389 .crease_snapshot
14390 .query_row(buffer_row, &self.buffer_snapshot)
14391 {
14392 is_foldable = true;
14393 match crease {
14394 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14395 if let Some(render_toggle) = render_toggle {
14396 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14397 if folded {
14398 editor.update(cx, |editor, cx| {
14399 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14400 });
14401 } else {
14402 editor.update(cx, |editor, cx| {
14403 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14404 });
14405 }
14406 });
14407 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14408 }
14409 }
14410 }
14411 }
14412
14413 is_foldable |= self.starts_indent(buffer_row);
14414
14415 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14416 Some(
14417 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14418 .toggle_state(folded)
14419 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14420 if folded {
14421 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14422 } else {
14423 this.fold_at(&FoldAt { buffer_row }, cx);
14424 }
14425 }))
14426 .into_any_element(),
14427 )
14428 } else {
14429 None
14430 }
14431 }
14432
14433 pub fn render_crease_trailer(
14434 &self,
14435 buffer_row: MultiBufferRow,
14436 cx: &mut WindowContext,
14437 ) -> Option<AnyElement> {
14438 let folded = self.is_line_folded(buffer_row);
14439 if let Crease::Inline { render_trailer, .. } = self
14440 .crease_snapshot
14441 .query_row(buffer_row, &self.buffer_snapshot)?
14442 {
14443 let render_trailer = render_trailer.as_ref()?;
14444 Some(render_trailer(buffer_row, folded, cx))
14445 } else {
14446 None
14447 }
14448 }
14449}
14450
14451impl Deref for EditorSnapshot {
14452 type Target = DisplaySnapshot;
14453
14454 fn deref(&self) -> &Self::Target {
14455 &self.display_snapshot
14456 }
14457}
14458
14459#[derive(Clone, Debug, PartialEq, Eq)]
14460pub enum EditorEvent {
14461 InputIgnored {
14462 text: Arc<str>,
14463 },
14464 InputHandled {
14465 utf16_range_to_replace: Option<Range<isize>>,
14466 text: Arc<str>,
14467 },
14468 ExcerptsAdded {
14469 buffer: Model<Buffer>,
14470 predecessor: ExcerptId,
14471 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14472 },
14473 ExcerptsRemoved {
14474 ids: Vec<ExcerptId>,
14475 },
14476 BufferFoldToggled {
14477 ids: Vec<ExcerptId>,
14478 folded: bool,
14479 },
14480 ExcerptsEdited {
14481 ids: Vec<ExcerptId>,
14482 },
14483 ExcerptsExpanded {
14484 ids: Vec<ExcerptId>,
14485 },
14486 BufferEdited,
14487 Edited {
14488 transaction_id: clock::Lamport,
14489 },
14490 Reparsed(BufferId),
14491 Focused,
14492 FocusedIn,
14493 Blurred,
14494 DirtyChanged,
14495 Saved,
14496 TitleChanged,
14497 DiffBaseChanged,
14498 SelectionsChanged {
14499 local: bool,
14500 },
14501 ScrollPositionChanged {
14502 local: bool,
14503 autoscroll: bool,
14504 },
14505 Closed,
14506 TransactionUndone {
14507 transaction_id: clock::Lamport,
14508 },
14509 TransactionBegun {
14510 transaction_id: clock::Lamport,
14511 },
14512 Reloaded,
14513 CursorShapeChanged,
14514}
14515
14516impl EventEmitter<EditorEvent> for Editor {}
14517
14518impl FocusableView for Editor {
14519 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14520 self.focus_handle.clone()
14521 }
14522}
14523
14524impl Render for Editor {
14525 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14526 let settings = ThemeSettings::get_global(cx);
14527
14528 let mut text_style = match self.mode {
14529 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14530 color: cx.theme().colors().editor_foreground,
14531 font_family: settings.ui_font.family.clone(),
14532 font_features: settings.ui_font.features.clone(),
14533 font_fallbacks: settings.ui_font.fallbacks.clone(),
14534 font_size: rems(0.875).into(),
14535 font_weight: settings.ui_font.weight,
14536 line_height: relative(settings.buffer_line_height.value()),
14537 ..Default::default()
14538 },
14539 EditorMode::Full => TextStyle {
14540 color: cx.theme().colors().editor_foreground,
14541 font_family: settings.buffer_font.family.clone(),
14542 font_features: settings.buffer_font.features.clone(),
14543 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14544 font_size: settings.buffer_font_size().into(),
14545 font_weight: settings.buffer_font.weight,
14546 line_height: relative(settings.buffer_line_height.value()),
14547 ..Default::default()
14548 },
14549 };
14550 if let Some(text_style_refinement) = &self.text_style_refinement {
14551 text_style.refine(text_style_refinement)
14552 }
14553
14554 let background = match self.mode {
14555 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14556 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14557 EditorMode::Full => cx.theme().colors().editor_background,
14558 };
14559
14560 EditorElement::new(
14561 cx.view(),
14562 EditorStyle {
14563 background,
14564 local_player: cx.theme().players().local(),
14565 text: text_style,
14566 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14567 syntax: cx.theme().syntax().clone(),
14568 status: cx.theme().status().clone(),
14569 inlay_hints_style: make_inlay_hints_style(cx),
14570 inline_completion_styles: make_suggestion_styles(cx),
14571 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14572 },
14573 )
14574 }
14575}
14576
14577impl ViewInputHandler for Editor {
14578 fn text_for_range(
14579 &mut self,
14580 range_utf16: Range<usize>,
14581 adjusted_range: &mut Option<Range<usize>>,
14582 cx: &mut ViewContext<Self>,
14583 ) -> Option<String> {
14584 let snapshot = self.buffer.read(cx).read(cx);
14585 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14586 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14587 if (start.0..end.0) != range_utf16 {
14588 adjusted_range.replace(start.0..end.0);
14589 }
14590 Some(snapshot.text_for_range(start..end).collect())
14591 }
14592
14593 fn selected_text_range(
14594 &mut self,
14595 ignore_disabled_input: bool,
14596 cx: &mut ViewContext<Self>,
14597 ) -> Option<UTF16Selection> {
14598 // Prevent the IME menu from appearing when holding down an alphabetic key
14599 // while input is disabled.
14600 if !ignore_disabled_input && !self.input_enabled {
14601 return None;
14602 }
14603
14604 let selection = self.selections.newest::<OffsetUtf16>(cx);
14605 let range = selection.range();
14606
14607 Some(UTF16Selection {
14608 range: range.start.0..range.end.0,
14609 reversed: selection.reversed,
14610 })
14611 }
14612
14613 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14614 let snapshot = self.buffer.read(cx).read(cx);
14615 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14616 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14617 }
14618
14619 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14620 self.clear_highlights::<InputComposition>(cx);
14621 self.ime_transaction.take();
14622 }
14623
14624 fn replace_text_in_range(
14625 &mut self,
14626 range_utf16: Option<Range<usize>>,
14627 text: &str,
14628 cx: &mut ViewContext<Self>,
14629 ) {
14630 if !self.input_enabled {
14631 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14632 return;
14633 }
14634
14635 self.transact(cx, |this, cx| {
14636 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14637 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14638 Some(this.selection_replacement_ranges(range_utf16, cx))
14639 } else {
14640 this.marked_text_ranges(cx)
14641 };
14642
14643 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14644 let newest_selection_id = this.selections.newest_anchor().id;
14645 this.selections
14646 .all::<OffsetUtf16>(cx)
14647 .iter()
14648 .zip(ranges_to_replace.iter())
14649 .find_map(|(selection, range)| {
14650 if selection.id == newest_selection_id {
14651 Some(
14652 (range.start.0 as isize - selection.head().0 as isize)
14653 ..(range.end.0 as isize - selection.head().0 as isize),
14654 )
14655 } else {
14656 None
14657 }
14658 })
14659 });
14660
14661 cx.emit(EditorEvent::InputHandled {
14662 utf16_range_to_replace: range_to_replace,
14663 text: text.into(),
14664 });
14665
14666 if let Some(new_selected_ranges) = new_selected_ranges {
14667 this.change_selections(None, cx, |selections| {
14668 selections.select_ranges(new_selected_ranges)
14669 });
14670 this.backspace(&Default::default(), cx);
14671 }
14672
14673 this.handle_input(text, cx);
14674 });
14675
14676 if let Some(transaction) = self.ime_transaction {
14677 self.buffer.update(cx, |buffer, cx| {
14678 buffer.group_until_transaction(transaction, cx);
14679 });
14680 }
14681
14682 self.unmark_text(cx);
14683 }
14684
14685 fn replace_and_mark_text_in_range(
14686 &mut self,
14687 range_utf16: Option<Range<usize>>,
14688 text: &str,
14689 new_selected_range_utf16: Option<Range<usize>>,
14690 cx: &mut ViewContext<Self>,
14691 ) {
14692 if !self.input_enabled {
14693 return;
14694 }
14695
14696 let transaction = self.transact(cx, |this, cx| {
14697 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14698 let snapshot = this.buffer.read(cx).read(cx);
14699 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14700 for marked_range in &mut marked_ranges {
14701 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14702 marked_range.start.0 += relative_range_utf16.start;
14703 marked_range.start =
14704 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14705 marked_range.end =
14706 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14707 }
14708 }
14709 Some(marked_ranges)
14710 } else if let Some(range_utf16) = range_utf16 {
14711 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14712 Some(this.selection_replacement_ranges(range_utf16, cx))
14713 } else {
14714 None
14715 };
14716
14717 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14718 let newest_selection_id = this.selections.newest_anchor().id;
14719 this.selections
14720 .all::<OffsetUtf16>(cx)
14721 .iter()
14722 .zip(ranges_to_replace.iter())
14723 .find_map(|(selection, range)| {
14724 if selection.id == newest_selection_id {
14725 Some(
14726 (range.start.0 as isize - selection.head().0 as isize)
14727 ..(range.end.0 as isize - selection.head().0 as isize),
14728 )
14729 } else {
14730 None
14731 }
14732 })
14733 });
14734
14735 cx.emit(EditorEvent::InputHandled {
14736 utf16_range_to_replace: range_to_replace,
14737 text: text.into(),
14738 });
14739
14740 if let Some(ranges) = ranges_to_replace {
14741 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14742 }
14743
14744 let marked_ranges = {
14745 let snapshot = this.buffer.read(cx).read(cx);
14746 this.selections
14747 .disjoint_anchors()
14748 .iter()
14749 .map(|selection| {
14750 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14751 })
14752 .collect::<Vec<_>>()
14753 };
14754
14755 if text.is_empty() {
14756 this.unmark_text(cx);
14757 } else {
14758 this.highlight_text::<InputComposition>(
14759 marked_ranges.clone(),
14760 HighlightStyle {
14761 underline: Some(UnderlineStyle {
14762 thickness: px(1.),
14763 color: None,
14764 wavy: false,
14765 }),
14766 ..Default::default()
14767 },
14768 cx,
14769 );
14770 }
14771
14772 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14773 let use_autoclose = this.use_autoclose;
14774 let use_auto_surround = this.use_auto_surround;
14775 this.set_use_autoclose(false);
14776 this.set_use_auto_surround(false);
14777 this.handle_input(text, cx);
14778 this.set_use_autoclose(use_autoclose);
14779 this.set_use_auto_surround(use_auto_surround);
14780
14781 if let Some(new_selected_range) = new_selected_range_utf16 {
14782 let snapshot = this.buffer.read(cx).read(cx);
14783 let new_selected_ranges = marked_ranges
14784 .into_iter()
14785 .map(|marked_range| {
14786 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14787 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14788 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14789 snapshot.clip_offset_utf16(new_start, Bias::Left)
14790 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14791 })
14792 .collect::<Vec<_>>();
14793
14794 drop(snapshot);
14795 this.change_selections(None, cx, |selections| {
14796 selections.select_ranges(new_selected_ranges)
14797 });
14798 }
14799 });
14800
14801 self.ime_transaction = self.ime_transaction.or(transaction);
14802 if let Some(transaction) = self.ime_transaction {
14803 self.buffer.update(cx, |buffer, cx| {
14804 buffer.group_until_transaction(transaction, cx);
14805 });
14806 }
14807
14808 if self.text_highlights::<InputComposition>(cx).is_none() {
14809 self.ime_transaction.take();
14810 }
14811 }
14812
14813 fn bounds_for_range(
14814 &mut self,
14815 range_utf16: Range<usize>,
14816 element_bounds: gpui::Bounds<Pixels>,
14817 cx: &mut ViewContext<Self>,
14818 ) -> Option<gpui::Bounds<Pixels>> {
14819 let text_layout_details = self.text_layout_details(cx);
14820 let gpui::Point {
14821 x: em_width,
14822 y: line_height,
14823 } = self.character_size(cx);
14824
14825 let snapshot = self.snapshot(cx);
14826 let scroll_position = snapshot.scroll_position();
14827 let scroll_left = scroll_position.x * em_width;
14828
14829 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14830 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14831 + self.gutter_dimensions.width
14832 + self.gutter_dimensions.margin;
14833 let y = line_height * (start.row().as_f32() - scroll_position.y);
14834
14835 Some(Bounds {
14836 origin: element_bounds.origin + point(x, y),
14837 size: size(em_width, line_height),
14838 })
14839 }
14840}
14841
14842trait SelectionExt {
14843 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14844 fn spanned_rows(
14845 &self,
14846 include_end_if_at_line_start: bool,
14847 map: &DisplaySnapshot,
14848 ) -> Range<MultiBufferRow>;
14849}
14850
14851impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14852 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14853 let start = self
14854 .start
14855 .to_point(&map.buffer_snapshot)
14856 .to_display_point(map);
14857 let end = self
14858 .end
14859 .to_point(&map.buffer_snapshot)
14860 .to_display_point(map);
14861 if self.reversed {
14862 end..start
14863 } else {
14864 start..end
14865 }
14866 }
14867
14868 fn spanned_rows(
14869 &self,
14870 include_end_if_at_line_start: bool,
14871 map: &DisplaySnapshot,
14872 ) -> Range<MultiBufferRow> {
14873 let start = self.start.to_point(&map.buffer_snapshot);
14874 let mut end = self.end.to_point(&map.buffer_snapshot);
14875 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14876 end.row -= 1;
14877 }
14878
14879 let buffer_start = map.prev_line_boundary(start).0;
14880 let buffer_end = map.next_line_boundary(end).0;
14881 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14882 }
14883}
14884
14885impl<T: InvalidationRegion> InvalidationStack<T> {
14886 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14887 where
14888 S: Clone + ToOffset,
14889 {
14890 while let Some(region) = self.last() {
14891 let all_selections_inside_invalidation_ranges =
14892 if selections.len() == region.ranges().len() {
14893 selections
14894 .iter()
14895 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14896 .all(|(selection, invalidation_range)| {
14897 let head = selection.head().to_offset(buffer);
14898 invalidation_range.start <= head && invalidation_range.end >= head
14899 })
14900 } else {
14901 false
14902 };
14903
14904 if all_selections_inside_invalidation_ranges {
14905 break;
14906 } else {
14907 self.pop();
14908 }
14909 }
14910 }
14911}
14912
14913impl<T> Default for InvalidationStack<T> {
14914 fn default() -> Self {
14915 Self(Default::default())
14916 }
14917}
14918
14919impl<T> Deref for InvalidationStack<T> {
14920 type Target = Vec<T>;
14921
14922 fn deref(&self) -> &Self::Target {
14923 &self.0
14924 }
14925}
14926
14927impl<T> DerefMut for InvalidationStack<T> {
14928 fn deref_mut(&mut self) -> &mut Self::Target {
14929 &mut self.0
14930 }
14931}
14932
14933impl InvalidationRegion for SnippetState {
14934 fn ranges(&self) -> &[Range<Anchor>] {
14935 &self.ranges[self.active_index]
14936 }
14937}
14938
14939pub fn diagnostic_block_renderer(
14940 diagnostic: Diagnostic,
14941 max_message_rows: Option<u8>,
14942 allow_closing: bool,
14943 _is_valid: bool,
14944) -> RenderBlock {
14945 let (text_without_backticks, code_ranges) =
14946 highlight_diagnostic_message(&diagnostic, max_message_rows);
14947
14948 Arc::new(move |cx: &mut BlockContext| {
14949 let group_id: SharedString = cx.block_id.to_string().into();
14950
14951 let mut text_style = cx.text_style().clone();
14952 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14953 let theme_settings = ThemeSettings::get_global(cx);
14954 text_style.font_family = theme_settings.buffer_font.family.clone();
14955 text_style.font_style = theme_settings.buffer_font.style;
14956 text_style.font_features = theme_settings.buffer_font.features.clone();
14957 text_style.font_weight = theme_settings.buffer_font.weight;
14958
14959 let multi_line_diagnostic = diagnostic.message.contains('\n');
14960
14961 let buttons = |diagnostic: &Diagnostic| {
14962 if multi_line_diagnostic {
14963 v_flex()
14964 } else {
14965 h_flex()
14966 }
14967 .when(allow_closing, |div| {
14968 div.children(diagnostic.is_primary.then(|| {
14969 IconButton::new("close-block", IconName::XCircle)
14970 .icon_color(Color::Muted)
14971 .size(ButtonSize::Compact)
14972 .style(ButtonStyle::Transparent)
14973 .visible_on_hover(group_id.clone())
14974 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14975 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14976 }))
14977 })
14978 .child(
14979 IconButton::new("copy-block", IconName::Copy)
14980 .icon_color(Color::Muted)
14981 .size(ButtonSize::Compact)
14982 .style(ButtonStyle::Transparent)
14983 .visible_on_hover(group_id.clone())
14984 .on_click({
14985 let message = diagnostic.message.clone();
14986 move |_click, cx| {
14987 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14988 }
14989 })
14990 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14991 )
14992 };
14993
14994 let icon_size = buttons(&diagnostic)
14995 .into_any_element()
14996 .layout_as_root(AvailableSpace::min_size(), cx);
14997
14998 h_flex()
14999 .id(cx.block_id)
15000 .group(group_id.clone())
15001 .relative()
15002 .size_full()
15003 .block_mouse_down()
15004 .pl(cx.gutter_dimensions.width)
15005 .w(cx.max_width - cx.gutter_dimensions.full_width())
15006 .child(
15007 div()
15008 .flex()
15009 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
15010 .flex_shrink(),
15011 )
15012 .child(buttons(&diagnostic))
15013 .child(div().flex().flex_shrink_0().child(
15014 StyledText::new(text_without_backticks.clone()).with_highlights(
15015 &text_style,
15016 code_ranges.iter().map(|range| {
15017 (
15018 range.clone(),
15019 HighlightStyle {
15020 font_weight: Some(FontWeight::BOLD),
15021 ..Default::default()
15022 },
15023 )
15024 }),
15025 ),
15026 ))
15027 .into_any_element()
15028 })
15029}
15030
15031fn inline_completion_edit_text(
15032 current_snapshot: &BufferSnapshot,
15033 edits: &[(Range<Anchor>, String)],
15034 edit_preview: &EditPreview,
15035 include_deletions: bool,
15036 cx: &WindowContext,
15037) -> Option<HighlightedEdits> {
15038 let edits = edits
15039 .iter()
15040 .map(|(anchor, text)| {
15041 (
15042 anchor.start.text_anchor..anchor.end.text_anchor,
15043 text.clone(),
15044 )
15045 })
15046 .collect::<Vec<_>>();
15047
15048 Some(edit_preview.highlight_edits(current_snapshot, &edits, include_deletions, cx))
15049}
15050
15051pub fn highlight_diagnostic_message(
15052 diagnostic: &Diagnostic,
15053 mut max_message_rows: Option<u8>,
15054) -> (SharedString, Vec<Range<usize>>) {
15055 let mut text_without_backticks = String::new();
15056 let mut code_ranges = Vec::new();
15057
15058 if let Some(source) = &diagnostic.source {
15059 text_without_backticks.push_str(source);
15060 code_ranges.push(0..source.len());
15061 text_without_backticks.push_str(": ");
15062 }
15063
15064 let mut prev_offset = 0;
15065 let mut in_code_block = false;
15066 let has_row_limit = max_message_rows.is_some();
15067 let mut newline_indices = diagnostic
15068 .message
15069 .match_indices('\n')
15070 .filter(|_| has_row_limit)
15071 .map(|(ix, _)| ix)
15072 .fuse()
15073 .peekable();
15074
15075 for (quote_ix, _) in diagnostic
15076 .message
15077 .match_indices('`')
15078 .chain([(diagnostic.message.len(), "")])
15079 {
15080 let mut first_newline_ix = None;
15081 let mut last_newline_ix = None;
15082 while let Some(newline_ix) = newline_indices.peek() {
15083 if *newline_ix < quote_ix {
15084 if first_newline_ix.is_none() {
15085 first_newline_ix = Some(*newline_ix);
15086 }
15087 last_newline_ix = Some(*newline_ix);
15088
15089 if let Some(rows_left) = &mut max_message_rows {
15090 if *rows_left == 0 {
15091 break;
15092 } else {
15093 *rows_left -= 1;
15094 }
15095 }
15096 let _ = newline_indices.next();
15097 } else {
15098 break;
15099 }
15100 }
15101 let prev_len = text_without_backticks.len();
15102 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
15103 text_without_backticks.push_str(new_text);
15104 if in_code_block {
15105 code_ranges.push(prev_len..text_without_backticks.len());
15106 }
15107 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
15108 in_code_block = !in_code_block;
15109 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
15110 text_without_backticks.push_str("...");
15111 break;
15112 }
15113 }
15114
15115 (text_without_backticks.into(), code_ranges)
15116}
15117
15118fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
15119 match severity {
15120 DiagnosticSeverity::ERROR => colors.error,
15121 DiagnosticSeverity::WARNING => colors.warning,
15122 DiagnosticSeverity::INFORMATION => colors.info,
15123 DiagnosticSeverity::HINT => colors.info,
15124 _ => colors.ignored,
15125 }
15126}
15127
15128pub fn styled_runs_for_code_label<'a>(
15129 label: &'a CodeLabel,
15130 syntax_theme: &'a theme::SyntaxTheme,
15131) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
15132 let fade_out = HighlightStyle {
15133 fade_out: Some(0.35),
15134 ..Default::default()
15135 };
15136
15137 let mut prev_end = label.filter_range.end;
15138 label
15139 .runs
15140 .iter()
15141 .enumerate()
15142 .flat_map(move |(ix, (range, highlight_id))| {
15143 let style = if let Some(style) = highlight_id.style(syntax_theme) {
15144 style
15145 } else {
15146 return Default::default();
15147 };
15148 let mut muted_style = style;
15149 muted_style.highlight(fade_out);
15150
15151 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
15152 if range.start >= label.filter_range.end {
15153 if range.start > prev_end {
15154 runs.push((prev_end..range.start, fade_out));
15155 }
15156 runs.push((range.clone(), muted_style));
15157 } else if range.end <= label.filter_range.end {
15158 runs.push((range.clone(), style));
15159 } else {
15160 runs.push((range.start..label.filter_range.end, style));
15161 runs.push((label.filter_range.end..range.end, muted_style));
15162 }
15163 prev_end = cmp::max(prev_end, range.end);
15164
15165 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
15166 runs.push((prev_end..label.text.len(), fade_out));
15167 }
15168
15169 runs
15170 })
15171}
15172
15173pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
15174 let mut prev_index = 0;
15175 let mut prev_codepoint: Option<char> = None;
15176 text.char_indices()
15177 .chain([(text.len(), '\0')])
15178 .filter_map(move |(index, codepoint)| {
15179 let prev_codepoint = prev_codepoint.replace(codepoint)?;
15180 let is_boundary = index == text.len()
15181 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
15182 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
15183 if is_boundary {
15184 let chunk = &text[prev_index..index];
15185 prev_index = index;
15186 Some(chunk)
15187 } else {
15188 None
15189 }
15190 })
15191}
15192
15193pub trait RangeToAnchorExt: Sized {
15194 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
15195
15196 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
15197 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
15198 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
15199 }
15200}
15201
15202impl<T: ToOffset> RangeToAnchorExt for Range<T> {
15203 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
15204 let start_offset = self.start.to_offset(snapshot);
15205 let end_offset = self.end.to_offset(snapshot);
15206 if start_offset == end_offset {
15207 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
15208 } else {
15209 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
15210 }
15211 }
15212}
15213
15214pub trait RowExt {
15215 fn as_f32(&self) -> f32;
15216
15217 fn next_row(&self) -> Self;
15218
15219 fn previous_row(&self) -> Self;
15220
15221 fn minus(&self, other: Self) -> u32;
15222}
15223
15224impl RowExt for DisplayRow {
15225 fn as_f32(&self) -> f32 {
15226 self.0 as f32
15227 }
15228
15229 fn next_row(&self) -> Self {
15230 Self(self.0 + 1)
15231 }
15232
15233 fn previous_row(&self) -> Self {
15234 Self(self.0.saturating_sub(1))
15235 }
15236
15237 fn minus(&self, other: Self) -> u32 {
15238 self.0 - other.0
15239 }
15240}
15241
15242impl RowExt for MultiBufferRow {
15243 fn as_f32(&self) -> f32 {
15244 self.0 as f32
15245 }
15246
15247 fn next_row(&self) -> Self {
15248 Self(self.0 + 1)
15249 }
15250
15251 fn previous_row(&self) -> Self {
15252 Self(self.0.saturating_sub(1))
15253 }
15254
15255 fn minus(&self, other: Self) -> u32 {
15256 self.0 - other.0
15257 }
15258}
15259
15260trait RowRangeExt {
15261 type Row;
15262
15263 fn len(&self) -> usize;
15264
15265 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15266}
15267
15268impl RowRangeExt for Range<MultiBufferRow> {
15269 type Row = MultiBufferRow;
15270
15271 fn len(&self) -> usize {
15272 (self.end.0 - self.start.0) as usize
15273 }
15274
15275 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15276 (self.start.0..self.end.0).map(MultiBufferRow)
15277 }
15278}
15279
15280impl RowRangeExt for Range<DisplayRow> {
15281 type Row = DisplayRow;
15282
15283 fn len(&self) -> usize {
15284 (self.end.0 - self.start.0) as usize
15285 }
15286
15287 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15288 (self.start.0..self.end.0).map(DisplayRow)
15289 }
15290}
15291
15292/// If select range has more than one line, we
15293/// just point the cursor to range.start.
15294fn collapse_multiline_range(range: Range<Point>) -> Range<Point> {
15295 if range.start.row == range.end.row {
15296 range
15297 } else {
15298 range.start..range.start
15299 }
15300}
15301pub struct KillRing(ClipboardItem);
15302impl Global for KillRing {}
15303
15304const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);
15305
15306fn all_edits_insertions_or_deletions(
15307 edits: &Vec<(Range<Anchor>, String)>,
15308 snapshot: &MultiBufferSnapshot,
15309) -> bool {
15310 let mut all_insertions = true;
15311 let mut all_deletions = true;
15312
15313 for (range, new_text) in edits.iter() {
15314 let range_is_empty = range.to_offset(&snapshot).is_empty();
15315 let text_is_empty = new_text.is_empty();
15316
15317 if range_is_empty != text_is_empty {
15318 if range_is_empty {
15319 all_deletions = false;
15320 } else {
15321 all_insertions = false;
15322 }
15323 } else {
15324 return false;
15325 }
15326
15327 if !all_insertions && !all_deletions {
15328 return false;
15329 }
15330 }
15331 all_insertions || all_deletions
15332}