1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behavior.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod clangd_ext;
19mod code_context_menus;
20pub mod display_map;
21mod editor_settings;
22mod editor_settings_controls;
23mod element;
24mod git;
25mod highlight_matching_bracket;
26mod hover_links;
27mod hover_popover;
28mod hunk_diff;
29mod indent_guides;
30mod inlay_hint_cache;
31pub mod items;
32mod linked_editing_ranges;
33mod lsp_ext;
34mod mouse_context_menu;
35pub mod movement;
36mod persistence;
37mod proposed_changes_editor;
38mod rust_analyzer_ext;
39pub mod scroll;
40mod selections_collection;
41pub mod tasks;
42
43#[cfg(test)]
44mod editor_tests;
45#[cfg(test)]
46mod inline_completion_tests;
47mod signature_help;
48#[cfg(any(test, feature = "test-support"))]
49pub mod test;
50
51use ::git::diff::DiffHunkStatus;
52pub(crate) use actions::*;
53pub use actions::{OpenExcerpts, OpenExcerptsSplit};
54use aho_corasick::AhoCorasick;
55use anyhow::{anyhow, Context as _, Result};
56use blink_manager::BlinkManager;
57use client::{Collaborator, ParticipantIndex};
58use clock::ReplicaId;
59use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
60use convert_case::{Case, Casing};
61use display_map::*;
62pub use display_map::{DisplayPoint, FoldPlaceholder};
63pub use editor_settings::{
64 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
65};
66pub use editor_settings_controls::*;
67use element::LineWithInvisibles;
68pub use element::{
69 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
70};
71use futures::{future, FutureExt};
72use fuzzy::StringMatchCandidate;
73use zed_predict_tos::ZedPredictTos;
74
75use code_context_menus::{
76 AvailableCodeAction, CodeActionContents, CodeActionsItem, CodeActionsMenu, CodeContextMenu,
77 CompletionEntry, CompletionsMenu, ContextMenuOrigin,
78};
79use git::blame::GitBlame;
80use gpui::{
81 div, impl_actions, point, prelude::*, px, relative, size, Action, AnyElement, AppContext,
82 AsyncWindowContext, AvailableSpace, Bounds, ClipboardEntry, ClipboardItem, Context,
83 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent, FocusableView, FontId,
84 FontWeight, Global, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, ModelContext,
85 MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString, Size, Styled, StyledText,
86 Subscription, Task, TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle,
87 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle,
88 WeakView, WindowContext,
89};
90use highlight_matching_bracket::refresh_matching_bracket_highlights;
91use hover_popover::{hide_hover, HoverState};
92pub(crate) use hunk_diff::HoveredHunk;
93use hunk_diff::{diff_hunk_to_display, DiffMap, DiffMapSnapshot};
94use indent_guides::ActiveIndentGuidesState;
95use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
96pub use inline_completion::Direction;
97use inline_completion::{InlineCompletionProvider, InlineCompletionProviderHandle};
98pub use items::MAX_TAB_TITLE_LEN;
99use itertools::Itertools;
100use language::{
101 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
102 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
103 CursorShape, Diagnostic, Documentation, EditPreview, HighlightedEdits, IndentKind, IndentSize,
104 Language, OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
105};
106use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
107use linked_editing_ranges::refresh_linked_ranges;
108use mouse_context_menu::MouseContextMenu;
109pub use proposed_changes_editor::{
110 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
111};
112use similar::{ChangeTag, TextDiff};
113use std::iter::Peekable;
114use task::{ResolvedTask, TaskTemplate, TaskVariables};
115
116use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
117pub use lsp::CompletionContext;
118use lsp::{
119 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
120 LanguageServerId, LanguageServerName,
121};
122
123use language::BufferSnapshot;
124use movement::TextLayoutDetails;
125pub use multi_buffer::{
126 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
127 ToPoint,
128};
129use multi_buffer::{
130 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
131};
132use project::{
133 buffer_store::BufferChangeSet,
134 lsp_store::{FormatTrigger, LspFormatTarget, OpenLspBufferHandle},
135 project_settings::{GitGutterSetting, ProjectSettings},
136 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
137 LspStore, PrepareRenameResponse, Project, ProjectItem, ProjectTransaction, TaskSourceKind,
138};
139use rand::prelude::*;
140use rpc::{proto::*, ErrorExt};
141use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
142use selections_collection::{
143 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
144};
145use serde::{Deserialize, Serialize};
146use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
147use smallvec::SmallVec;
148use snippet::Snippet;
149use std::{
150 any::TypeId,
151 borrow::Cow,
152 cell::RefCell,
153 cmp::{self, Ordering, Reverse},
154 mem,
155 num::NonZeroU32,
156 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
157 path::{Path, PathBuf},
158 rc::Rc,
159 sync::Arc,
160 time::{Duration, Instant},
161};
162pub use sum_tree::Bias;
163use sum_tree::TreeMap;
164use text::{BufferId, OffsetUtf16, Rope};
165use theme::{ActiveTheme, PlayerColor, StatusColors, SyntaxTheme, ThemeColors, ThemeSettings};
166use ui::{
167 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
168 PopoverMenuHandle, Tooltip,
169};
170use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
171use workspace::item::{ItemHandle, PreviewTabsSettings};
172use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
173use workspace::{
174 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
175};
176use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
177
178use crate::hover_links::{find_url, find_url_from_range};
179use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
180
181pub const FILE_HEADER_HEIGHT: u32 = 2;
182pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
183pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
184pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
185const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
186const MAX_LINE_LEN: usize = 1024;
187const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
188const MAX_SELECTION_HISTORY_LEN: usize = 1024;
189pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
190#[doc(hidden)]
191pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
192
193pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
194pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
195
196pub fn render_parsed_markdown(
197 element_id: impl Into<ElementId>,
198 parsed: &language::ParsedMarkdown,
199 editor_style: &EditorStyle,
200 workspace: Option<WeakView<Workspace>>,
201 cx: &mut WindowContext,
202) -> InteractiveText {
203 let code_span_background_color = cx
204 .theme()
205 .colors()
206 .editor_document_highlight_read_background;
207
208 let highlights = gpui::combine_highlights(
209 parsed.highlights.iter().filter_map(|(range, highlight)| {
210 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
211 Some((range.clone(), highlight))
212 }),
213 parsed
214 .regions
215 .iter()
216 .zip(&parsed.region_ranges)
217 .filter_map(|(region, range)| {
218 if region.code {
219 Some((
220 range.clone(),
221 HighlightStyle {
222 background_color: Some(code_span_background_color),
223 ..Default::default()
224 },
225 ))
226 } else {
227 None
228 }
229 }),
230 );
231
232 let mut links = Vec::new();
233 let mut link_ranges = Vec::new();
234 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
235 if let Some(link) = region.link.clone() {
236 links.push(link);
237 link_ranges.push(range.clone());
238 }
239 }
240
241 InteractiveText::new(
242 element_id,
243 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
244 )
245 .on_click(link_ranges, move |clicked_range_ix, cx| {
246 match &links[clicked_range_ix] {
247 markdown::Link::Web { url } => cx.open_url(url),
248 markdown::Link::Path { path } => {
249 if let Some(workspace) = &workspace {
250 _ = workspace.update(cx, |workspace, cx| {
251 workspace.open_abs_path(path.clone(), false, cx).detach();
252 });
253 }
254 }
255 }
256 })
257}
258
259#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
260pub enum InlayId {
261 InlineCompletion(usize),
262 Hint(usize),
263}
264
265impl InlayId {
266 fn id(&self) -> usize {
267 match self {
268 Self::InlineCompletion(id) => *id,
269 Self::Hint(id) => *id,
270 }
271 }
272}
273
274enum DiffRowHighlight {}
275enum DocumentHighlightRead {}
276enum DocumentHighlightWrite {}
277enum InputComposition {}
278
279#[derive(Debug, Copy, Clone, PartialEq, Eq)]
280pub enum Navigated {
281 Yes,
282 No,
283}
284
285impl Navigated {
286 pub fn from_bool(yes: bool) -> Navigated {
287 if yes {
288 Navigated::Yes
289 } else {
290 Navigated::No
291 }
292 }
293}
294
295pub fn init_settings(cx: &mut AppContext) {
296 EditorSettings::register(cx);
297}
298
299pub fn init(cx: &mut AppContext) {
300 init_settings(cx);
301
302 workspace::register_project_item::<Editor>(cx);
303 workspace::FollowableViewRegistry::register::<Editor>(cx);
304 workspace::register_serializable_item::<Editor>(cx);
305
306 cx.observe_new_views(
307 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
308 workspace.register_action(Editor::new_file);
309 workspace.register_action(Editor::new_file_vertical);
310 workspace.register_action(Editor::new_file_horizontal);
311 },
312 )
313 .detach();
314
315 cx.on_action(move |_: &workspace::NewFile, cx| {
316 let app_state = workspace::AppState::global(cx);
317 if let Some(app_state) = app_state.upgrade() {
318 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
319 Editor::new_file(workspace, &Default::default(), cx)
320 })
321 .detach();
322 }
323 });
324 cx.on_action(move |_: &workspace::NewWindow, cx| {
325 let app_state = workspace::AppState::global(cx);
326 if let Some(app_state) = app_state.upgrade() {
327 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
328 Editor::new_file(workspace, &Default::default(), cx)
329 })
330 .detach();
331 }
332 });
333 git::project_diff::init(cx);
334}
335
336pub struct SearchWithinRange;
337
338trait InvalidationRegion {
339 fn ranges(&self) -> &[Range<Anchor>];
340}
341
342#[derive(Clone, Debug, PartialEq)]
343pub enum SelectPhase {
344 Begin {
345 position: DisplayPoint,
346 add: bool,
347 click_count: usize,
348 },
349 BeginColumnar {
350 position: DisplayPoint,
351 reset: bool,
352 goal_column: u32,
353 },
354 Extend {
355 position: DisplayPoint,
356 click_count: usize,
357 },
358 Update {
359 position: DisplayPoint,
360 goal_column: u32,
361 scroll_delta: gpui::Point<f32>,
362 },
363 End,
364}
365
366#[derive(Clone, Debug)]
367pub enum SelectMode {
368 Character,
369 Word(Range<Anchor>),
370 Line(Range<Anchor>),
371 All,
372}
373
374#[derive(Copy, Clone, PartialEq, Eq, Debug)]
375pub enum EditorMode {
376 SingleLine { auto_width: bool },
377 AutoHeight { max_lines: usize },
378 Full,
379}
380
381#[derive(Copy, Clone, Debug)]
382pub enum SoftWrap {
383 /// Prefer not to wrap at all.
384 ///
385 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
386 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
387 GitDiff,
388 /// Prefer a single line generally, unless an overly long line is encountered.
389 None,
390 /// Soft wrap lines that exceed the editor width.
391 EditorWidth,
392 /// Soft wrap lines at the preferred line length.
393 Column(u32),
394 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
395 Bounded(u32),
396}
397
398#[derive(Clone)]
399pub struct EditorStyle {
400 pub background: Hsla,
401 pub local_player: PlayerColor,
402 pub text: TextStyle,
403 pub scrollbar_width: Pixels,
404 pub syntax: Arc<SyntaxTheme>,
405 pub status: StatusColors,
406 pub inlay_hints_style: HighlightStyle,
407 pub inline_completion_styles: InlineCompletionStyles,
408 pub unnecessary_code_fade: f32,
409}
410
411impl Default for EditorStyle {
412 fn default() -> Self {
413 Self {
414 background: Hsla::default(),
415 local_player: PlayerColor::default(),
416 text: TextStyle::default(),
417 scrollbar_width: Pixels::default(),
418 syntax: Default::default(),
419 // HACK: Status colors don't have a real default.
420 // We should look into removing the status colors from the editor
421 // style and retrieve them directly from the theme.
422 status: StatusColors::dark(),
423 inlay_hints_style: HighlightStyle::default(),
424 inline_completion_styles: InlineCompletionStyles {
425 insertion: HighlightStyle::default(),
426 whitespace: HighlightStyle::default(),
427 },
428 unnecessary_code_fade: Default::default(),
429 }
430 }
431}
432
433pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
434 let show_background = language_settings::language_settings(None, None, cx)
435 .inlay_hints
436 .show_background;
437
438 HighlightStyle {
439 color: Some(cx.theme().status().hint),
440 background_color: show_background.then(|| cx.theme().status().hint_background),
441 ..HighlightStyle::default()
442 }
443}
444
445pub fn make_suggestion_styles(cx: &WindowContext) -> InlineCompletionStyles {
446 InlineCompletionStyles {
447 insertion: HighlightStyle {
448 color: Some(cx.theme().status().predictive),
449 ..HighlightStyle::default()
450 },
451 whitespace: HighlightStyle {
452 background_color: Some(cx.theme().status().created_background),
453 ..HighlightStyle::default()
454 },
455 }
456}
457
458type CompletionId = usize;
459
460#[derive(Debug, Clone)]
461enum InlineCompletionMenuHint {
462 Loading,
463 Loaded { text: InlineCompletionText },
464 PendingTermsAcceptance,
465 None,
466}
467
468impl InlineCompletionMenuHint {
469 pub fn label(&self) -> &'static str {
470 match self {
471 InlineCompletionMenuHint::Loading | InlineCompletionMenuHint::Loaded { .. } => {
472 "Edit Prediction"
473 }
474 InlineCompletionMenuHint::PendingTermsAcceptance => "Accept Terms of Service",
475 InlineCompletionMenuHint::None => "No Prediction",
476 }
477 }
478}
479
480#[derive(Clone, Debug)]
481enum InlineCompletionText {
482 Move(SharedString),
483 Edit(HighlightedEdits),
484}
485
486pub(crate) enum EditDisplayMode {
487 TabAccept,
488 DiffPopover,
489 Inline,
490}
491
492enum InlineCompletion {
493 Edit {
494 edits: Vec<(Range<Anchor>, String)>,
495 edit_preview: Option<EditPreview>,
496 display_mode: EditDisplayMode,
497 snapshot: BufferSnapshot,
498 },
499 Move(Anchor),
500}
501
502struct InlineCompletionState {
503 inlay_ids: Vec<InlayId>,
504 completion: InlineCompletion,
505 invalidation_range: Range<Anchor>,
506}
507
508enum InlineCompletionHighlight {}
509
510pub enum MenuInlineCompletionsPolicy {
511 Never,
512 ByProvider,
513}
514
515#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
516struct EditorActionId(usize);
517
518impl EditorActionId {
519 pub fn post_inc(&mut self) -> Self {
520 let answer = self.0;
521
522 *self = Self(answer + 1);
523
524 Self(answer)
525 }
526}
527
528// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
529// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
530
531type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
532type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
533
534#[derive(Default)]
535struct ScrollbarMarkerState {
536 scrollbar_size: Size<Pixels>,
537 dirty: bool,
538 markers: Arc<[PaintQuad]>,
539 pending_refresh: Option<Task<Result<()>>>,
540}
541
542impl ScrollbarMarkerState {
543 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
544 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
545 }
546}
547
548#[derive(Clone, Debug)]
549struct RunnableTasks {
550 templates: Vec<(TaskSourceKind, TaskTemplate)>,
551 offset: MultiBufferOffset,
552 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
553 column: u32,
554 // Values of all named captures, including those starting with '_'
555 extra_variables: HashMap<String, String>,
556 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
557 context_range: Range<BufferOffset>,
558}
559
560impl RunnableTasks {
561 fn resolve<'a>(
562 &'a self,
563 cx: &'a task::TaskContext,
564 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
565 self.templates.iter().filter_map(|(kind, template)| {
566 template
567 .resolve_task(&kind.to_id_base(), cx)
568 .map(|task| (kind.clone(), task))
569 })
570 }
571}
572
573#[derive(Clone)]
574struct ResolvedTasks {
575 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
576 position: Anchor,
577}
578#[derive(Copy, Clone, Debug)]
579struct MultiBufferOffset(usize);
580#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
581struct BufferOffset(usize);
582
583// Addons allow storing per-editor state in other crates (e.g. Vim)
584pub trait Addon: 'static {
585 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
586
587 fn to_any(&self) -> &dyn std::any::Any;
588}
589
590#[derive(Debug, Copy, Clone, PartialEq, Eq)]
591pub enum IsVimMode {
592 Yes,
593 No,
594}
595
596/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
597///
598/// See the [module level documentation](self) for more information.
599pub struct Editor {
600 focus_handle: FocusHandle,
601 last_focused_descendant: Option<WeakFocusHandle>,
602 /// The text buffer being edited
603 buffer: Model<MultiBuffer>,
604 /// Map of how text in the buffer should be displayed.
605 /// Handles soft wraps, folds, fake inlay text insertions, etc.
606 pub display_map: Model<DisplayMap>,
607 pub selections: SelectionsCollection,
608 pub scroll_manager: ScrollManager,
609 /// When inline assist editors are linked, they all render cursors because
610 /// typing enters text into each of them, even the ones that aren't focused.
611 pub(crate) show_cursor_when_unfocused: bool,
612 columnar_selection_tail: Option<Anchor>,
613 add_selections_state: Option<AddSelectionsState>,
614 select_next_state: Option<SelectNextState>,
615 select_prev_state: Option<SelectNextState>,
616 selection_history: SelectionHistory,
617 autoclose_regions: Vec<AutocloseRegion>,
618 snippet_stack: InvalidationStack<SnippetState>,
619 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
620 ime_transaction: Option<TransactionId>,
621 active_diagnostics: Option<ActiveDiagnosticGroup>,
622 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
623
624 project: Option<Model<Project>>,
625 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
626 completion_provider: Option<Box<dyn CompletionProvider>>,
627 collaboration_hub: Option<Box<dyn CollaborationHub>>,
628 blink_manager: Model<BlinkManager>,
629 show_cursor_names: bool,
630 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
631 pub show_local_selections: bool,
632 mode: EditorMode,
633 show_breadcrumbs: bool,
634 show_gutter: bool,
635 show_scrollbars: bool,
636 show_line_numbers: Option<bool>,
637 use_relative_line_numbers: Option<bool>,
638 show_git_diff_gutter: Option<bool>,
639 show_code_actions: Option<bool>,
640 show_runnables: Option<bool>,
641 show_wrap_guides: Option<bool>,
642 show_indent_guides: Option<bool>,
643 placeholder_text: Option<Arc<str>>,
644 highlight_order: usize,
645 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
646 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
647 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
648 scrollbar_marker_state: ScrollbarMarkerState,
649 active_indent_guides_state: ActiveIndentGuidesState,
650 nav_history: Option<ItemNavHistory>,
651 context_menu: RefCell<Option<CodeContextMenu>>,
652 mouse_context_menu: Option<MouseContextMenu>,
653 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
654 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
655 signature_help_state: SignatureHelpState,
656 auto_signature_help: Option<bool>,
657 find_all_references_task_sources: Vec<Anchor>,
658 next_completion_id: CompletionId,
659 available_code_actions: Option<(Location, Rc<[AvailableCodeAction]>)>,
660 code_actions_task: Option<Task<Result<()>>>,
661 document_highlights_task: Option<Task<()>>,
662 linked_editing_range_task: Option<Task<Option<()>>>,
663 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
664 pending_rename: Option<RenameState>,
665 searchable: bool,
666 cursor_shape: CursorShape,
667 current_line_highlight: Option<CurrentLineHighlight>,
668 collapse_matches: bool,
669 autoindent_mode: Option<AutoindentMode>,
670 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
671 input_enabled: bool,
672 use_modal_editing: bool,
673 read_only: bool,
674 leader_peer_id: Option<PeerId>,
675 remote_id: Option<ViewId>,
676 hover_state: HoverState,
677 gutter_hovered: bool,
678 hovered_link_state: Option<HoveredLinkState>,
679 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
680 code_action_providers: Vec<Rc<dyn CodeActionProvider>>,
681 active_inline_completion: Option<InlineCompletionState>,
682 // enable_inline_completions is a switch that Vim can use to disable
683 // inline completions based on its mode.
684 enable_inline_completions: bool,
685 show_inline_completions_override: Option<bool>,
686 menu_inline_completions_policy: MenuInlineCompletionsPolicy,
687 inlay_hint_cache: InlayHintCache,
688 diff_map: DiffMap,
689 next_inlay_id: usize,
690 _subscriptions: Vec<Subscription>,
691 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
692 gutter_dimensions: GutterDimensions,
693 style: Option<EditorStyle>,
694 text_style_refinement: Option<TextStyleRefinement>,
695 next_editor_action_id: EditorActionId,
696 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
697 use_autoclose: bool,
698 use_auto_surround: bool,
699 auto_replace_emoji_shortcode: bool,
700 show_git_blame_gutter: bool,
701 show_git_blame_inline: bool,
702 show_git_blame_inline_delay_task: Option<Task<()>>,
703 git_blame_inline_enabled: bool,
704 serialize_dirty_buffers: bool,
705 show_selection_menu: Option<bool>,
706 blame: Option<Model<GitBlame>>,
707 blame_subscription: Option<Subscription>,
708 custom_context_menu: Option<
709 Box<
710 dyn 'static
711 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
712 >,
713 >,
714 last_bounds: Option<Bounds<Pixels>>,
715 expect_bounds_change: Option<Bounds<Pixels>>,
716 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
717 tasks_update_task: Option<Task<()>>,
718 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
719 breadcrumb_header: Option<String>,
720 focused_block: Option<FocusedBlock>,
721 next_scroll_position: NextScrollCursorCenterTopBottom,
722 addons: HashMap<TypeId, Box<dyn Addon>>,
723 registered_buffers: HashMap<BufferId, OpenLspBufferHandle>,
724 selection_mark_mode: bool,
725 toggle_fold_multiple_buffers: Task<()>,
726 _scroll_cursor_center_top_bottom_task: Task<()>,
727}
728
729#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
730enum NextScrollCursorCenterTopBottom {
731 #[default]
732 Center,
733 Top,
734 Bottom,
735}
736
737impl NextScrollCursorCenterTopBottom {
738 fn next(&self) -> Self {
739 match self {
740 Self::Center => Self::Top,
741 Self::Top => Self::Bottom,
742 Self::Bottom => Self::Center,
743 }
744 }
745}
746
747#[derive(Clone)]
748pub struct EditorSnapshot {
749 pub mode: EditorMode,
750 show_gutter: bool,
751 show_line_numbers: Option<bool>,
752 show_git_diff_gutter: Option<bool>,
753 show_code_actions: Option<bool>,
754 show_runnables: Option<bool>,
755 git_blame_gutter_max_author_length: Option<usize>,
756 pub display_snapshot: DisplaySnapshot,
757 pub placeholder_text: Option<Arc<str>>,
758 diff_map: DiffMapSnapshot,
759 is_focused: bool,
760 scroll_anchor: ScrollAnchor,
761 ongoing_scroll: OngoingScroll,
762 current_line_highlight: CurrentLineHighlight,
763 gutter_hovered: bool,
764}
765
766const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
767
768#[derive(Default, Debug, Clone, Copy)]
769pub struct GutterDimensions {
770 pub left_padding: Pixels,
771 pub right_padding: Pixels,
772 pub width: Pixels,
773 pub margin: Pixels,
774 pub git_blame_entries_width: Option<Pixels>,
775}
776
777impl GutterDimensions {
778 /// The full width of the space taken up by the gutter.
779 pub fn full_width(&self) -> Pixels {
780 self.margin + self.width
781 }
782
783 /// The width of the space reserved for the fold indicators,
784 /// use alongside 'justify_end' and `gutter_width` to
785 /// right align content with the line numbers
786 pub fn fold_area_width(&self) -> Pixels {
787 self.margin + self.right_padding
788 }
789}
790
791#[derive(Debug)]
792pub struct RemoteSelection {
793 pub replica_id: ReplicaId,
794 pub selection: Selection<Anchor>,
795 pub cursor_shape: CursorShape,
796 pub peer_id: PeerId,
797 pub line_mode: bool,
798 pub participant_index: Option<ParticipantIndex>,
799 pub user_name: Option<SharedString>,
800}
801
802#[derive(Clone, Debug)]
803struct SelectionHistoryEntry {
804 selections: Arc<[Selection<Anchor>]>,
805 select_next_state: Option<SelectNextState>,
806 select_prev_state: Option<SelectNextState>,
807 add_selections_state: Option<AddSelectionsState>,
808}
809
810enum SelectionHistoryMode {
811 Normal,
812 Undoing,
813 Redoing,
814}
815
816#[derive(Clone, PartialEq, Eq, Hash)]
817struct HoveredCursor {
818 replica_id: u16,
819 selection_id: usize,
820}
821
822impl Default for SelectionHistoryMode {
823 fn default() -> Self {
824 Self::Normal
825 }
826}
827
828#[derive(Default)]
829struct SelectionHistory {
830 #[allow(clippy::type_complexity)]
831 selections_by_transaction:
832 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
833 mode: SelectionHistoryMode,
834 undo_stack: VecDeque<SelectionHistoryEntry>,
835 redo_stack: VecDeque<SelectionHistoryEntry>,
836}
837
838impl SelectionHistory {
839 fn insert_transaction(
840 &mut self,
841 transaction_id: TransactionId,
842 selections: Arc<[Selection<Anchor>]>,
843 ) {
844 self.selections_by_transaction
845 .insert(transaction_id, (selections, None));
846 }
847
848 #[allow(clippy::type_complexity)]
849 fn transaction(
850 &self,
851 transaction_id: TransactionId,
852 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
853 self.selections_by_transaction.get(&transaction_id)
854 }
855
856 #[allow(clippy::type_complexity)]
857 fn transaction_mut(
858 &mut self,
859 transaction_id: TransactionId,
860 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
861 self.selections_by_transaction.get_mut(&transaction_id)
862 }
863
864 fn push(&mut self, entry: SelectionHistoryEntry) {
865 if !entry.selections.is_empty() {
866 match self.mode {
867 SelectionHistoryMode::Normal => {
868 self.push_undo(entry);
869 self.redo_stack.clear();
870 }
871 SelectionHistoryMode::Undoing => self.push_redo(entry),
872 SelectionHistoryMode::Redoing => self.push_undo(entry),
873 }
874 }
875 }
876
877 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
878 if self
879 .undo_stack
880 .back()
881 .map_or(true, |e| e.selections != entry.selections)
882 {
883 self.undo_stack.push_back(entry);
884 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
885 self.undo_stack.pop_front();
886 }
887 }
888 }
889
890 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
891 if self
892 .redo_stack
893 .back()
894 .map_or(true, |e| e.selections != entry.selections)
895 {
896 self.redo_stack.push_back(entry);
897 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
898 self.redo_stack.pop_front();
899 }
900 }
901 }
902}
903
904struct RowHighlight {
905 index: usize,
906 range: Range<Anchor>,
907 color: Hsla,
908 should_autoscroll: bool,
909}
910
911#[derive(Clone, Debug)]
912struct AddSelectionsState {
913 above: bool,
914 stack: Vec<usize>,
915}
916
917#[derive(Clone)]
918struct SelectNextState {
919 query: AhoCorasick,
920 wordwise: bool,
921 done: bool,
922}
923
924impl std::fmt::Debug for SelectNextState {
925 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
926 f.debug_struct(std::any::type_name::<Self>())
927 .field("wordwise", &self.wordwise)
928 .field("done", &self.done)
929 .finish()
930 }
931}
932
933#[derive(Debug)]
934struct AutocloseRegion {
935 selection_id: usize,
936 range: Range<Anchor>,
937 pair: BracketPair,
938}
939
940#[derive(Debug)]
941struct SnippetState {
942 ranges: Vec<Vec<Range<Anchor>>>,
943 active_index: usize,
944 choices: Vec<Option<Vec<String>>>,
945}
946
947#[doc(hidden)]
948pub struct RenameState {
949 pub range: Range<Anchor>,
950 pub old_name: Arc<str>,
951 pub editor: View<Editor>,
952 block_id: CustomBlockId,
953}
954
955struct InvalidationStack<T>(Vec<T>);
956
957struct RegisteredInlineCompletionProvider {
958 provider: Arc<dyn InlineCompletionProviderHandle>,
959 _subscription: Subscription,
960}
961
962#[derive(Debug)]
963struct ActiveDiagnosticGroup {
964 primary_range: Range<Anchor>,
965 primary_message: String,
966 group_id: usize,
967 blocks: HashMap<CustomBlockId, Diagnostic>,
968 is_valid: bool,
969}
970
971#[derive(Serialize, Deserialize, Clone, Debug)]
972pub struct ClipboardSelection {
973 pub len: usize,
974 pub is_entire_line: bool,
975 pub first_line_indent: u32,
976}
977
978#[derive(Debug)]
979pub(crate) struct NavigationData {
980 cursor_anchor: Anchor,
981 cursor_position: Point,
982 scroll_anchor: ScrollAnchor,
983 scroll_top_row: u32,
984}
985
986#[derive(Debug, Clone, Copy, PartialEq, Eq)]
987pub enum GotoDefinitionKind {
988 Symbol,
989 Declaration,
990 Type,
991 Implementation,
992}
993
994#[derive(Debug, Clone)]
995enum InlayHintRefreshReason {
996 Toggle(bool),
997 SettingsChange(InlayHintSettings),
998 NewLinesShown,
999 BufferEdited(HashSet<Arc<Language>>),
1000 RefreshRequested,
1001 ExcerptsRemoved(Vec<ExcerptId>),
1002}
1003
1004impl InlayHintRefreshReason {
1005 fn description(&self) -> &'static str {
1006 match self {
1007 Self::Toggle(_) => "toggle",
1008 Self::SettingsChange(_) => "settings change",
1009 Self::NewLinesShown => "new lines shown",
1010 Self::BufferEdited(_) => "buffer edited",
1011 Self::RefreshRequested => "refresh requested",
1012 Self::ExcerptsRemoved(_) => "excerpts removed",
1013 }
1014 }
1015}
1016
1017pub enum FormatTarget {
1018 Buffers,
1019 Ranges(Vec<Range<MultiBufferPoint>>),
1020}
1021
1022pub(crate) struct FocusedBlock {
1023 id: BlockId,
1024 focus_handle: WeakFocusHandle,
1025}
1026
1027#[derive(Clone)]
1028enum JumpData {
1029 MultiBufferRow {
1030 row: MultiBufferRow,
1031 line_offset_from_top: u32,
1032 },
1033 MultiBufferPoint {
1034 excerpt_id: ExcerptId,
1035 position: Point,
1036 anchor: text::Anchor,
1037 line_offset_from_top: u32,
1038 },
1039}
1040
1041impl Editor {
1042 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1043 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1044 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1045 Self::new(
1046 EditorMode::SingleLine { auto_width: false },
1047 buffer,
1048 None,
1049 false,
1050 cx,
1051 )
1052 }
1053
1054 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1055 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1056 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1057 Self::new(EditorMode::Full, buffer, None, false, cx)
1058 }
1059
1060 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1061 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1062 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1063 Self::new(
1064 EditorMode::SingleLine { auto_width: true },
1065 buffer,
1066 None,
1067 false,
1068 cx,
1069 )
1070 }
1071
1072 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1073 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1074 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1075 Self::new(
1076 EditorMode::AutoHeight { max_lines },
1077 buffer,
1078 None,
1079 false,
1080 cx,
1081 )
1082 }
1083
1084 pub fn for_buffer(
1085 buffer: Model<Buffer>,
1086 project: Option<Model<Project>>,
1087 cx: &mut ViewContext<Self>,
1088 ) -> Self {
1089 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1090 Self::new(EditorMode::Full, buffer, project, false, cx)
1091 }
1092
1093 pub fn for_multibuffer(
1094 buffer: Model<MultiBuffer>,
1095 project: Option<Model<Project>>,
1096 show_excerpt_controls: bool,
1097 cx: &mut ViewContext<Self>,
1098 ) -> Self {
1099 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1100 }
1101
1102 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1103 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1104 let mut clone = Self::new(
1105 self.mode,
1106 self.buffer.clone(),
1107 self.project.clone(),
1108 show_excerpt_controls,
1109 cx,
1110 );
1111 self.display_map.update(cx, |display_map, cx| {
1112 let snapshot = display_map.snapshot(cx);
1113 clone.display_map.update(cx, |display_map, cx| {
1114 display_map.set_state(&snapshot, cx);
1115 });
1116 });
1117 clone.selections.clone_state(&self.selections);
1118 clone.scroll_manager.clone_state(&self.scroll_manager);
1119 clone.searchable = self.searchable;
1120 clone
1121 }
1122
1123 pub fn new(
1124 mode: EditorMode,
1125 buffer: Model<MultiBuffer>,
1126 project: Option<Model<Project>>,
1127 show_excerpt_controls: bool,
1128 cx: &mut ViewContext<Self>,
1129 ) -> Self {
1130 let style = cx.text_style();
1131 let font_size = style.font_size.to_pixels(cx.rem_size());
1132 let editor = cx.view().downgrade();
1133 let fold_placeholder = FoldPlaceholder {
1134 constrain_width: true,
1135 render: Arc::new(move |fold_id, fold_range, cx| {
1136 let editor = editor.clone();
1137 div()
1138 .id(fold_id)
1139 .bg(cx.theme().colors().ghost_element_background)
1140 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1141 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1142 .rounded_sm()
1143 .size_full()
1144 .cursor_pointer()
1145 .child("⋯")
1146 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1147 .on_click(move |_, cx| {
1148 editor
1149 .update(cx, |editor, cx| {
1150 editor.unfold_ranges(
1151 &[fold_range.start..fold_range.end],
1152 true,
1153 false,
1154 cx,
1155 );
1156 cx.stop_propagation();
1157 })
1158 .ok();
1159 })
1160 .into_any()
1161 }),
1162 merge_adjacent: true,
1163 ..Default::default()
1164 };
1165 let display_map = cx.new_model(|cx| {
1166 DisplayMap::new(
1167 buffer.clone(),
1168 style.font(),
1169 font_size,
1170 None,
1171 show_excerpt_controls,
1172 FILE_HEADER_HEIGHT,
1173 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1174 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1175 fold_placeholder,
1176 cx,
1177 )
1178 });
1179
1180 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1181
1182 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1183
1184 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1185 .then(|| language_settings::SoftWrap::None);
1186
1187 let mut project_subscriptions = Vec::new();
1188 if mode == EditorMode::Full {
1189 if let Some(project) = project.as_ref() {
1190 if buffer.read(cx).is_singleton() {
1191 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1192 cx.emit(EditorEvent::TitleChanged);
1193 }));
1194 }
1195 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1196 if let project::Event::RefreshInlayHints = event {
1197 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1198 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1199 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1200 let focus_handle = editor.focus_handle(cx);
1201 if focus_handle.is_focused(cx) {
1202 let snapshot = buffer.read(cx).snapshot();
1203 for (range, snippet) in snippet_edits {
1204 let editor_range =
1205 language::range_from_lsp(*range).to_offset(&snapshot);
1206 editor
1207 .insert_snippet(&[editor_range], snippet.clone(), cx)
1208 .ok();
1209 }
1210 }
1211 }
1212 }
1213 }));
1214 if let Some(task_inventory) = project
1215 .read(cx)
1216 .task_store()
1217 .read(cx)
1218 .task_inventory()
1219 .cloned()
1220 {
1221 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1222 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1223 }));
1224 }
1225 }
1226 }
1227
1228 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1229
1230 let inlay_hint_settings =
1231 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1232 let focus_handle = cx.focus_handle();
1233 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1234 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1235 .detach();
1236 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1237 .detach();
1238 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1239
1240 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1241 Some(false)
1242 } else {
1243 None
1244 };
1245
1246 let mut code_action_providers = Vec::new();
1247 if let Some(project) = project.clone() {
1248 get_unstaged_changes_for_buffers(&project, buffer.read(cx).all_buffers(), cx);
1249 code_action_providers.push(Rc::new(project) as Rc<_>);
1250 }
1251
1252 let mut this = Self {
1253 focus_handle,
1254 show_cursor_when_unfocused: false,
1255 last_focused_descendant: None,
1256 buffer: buffer.clone(),
1257 display_map: display_map.clone(),
1258 selections,
1259 scroll_manager: ScrollManager::new(cx),
1260 columnar_selection_tail: None,
1261 add_selections_state: None,
1262 select_next_state: None,
1263 select_prev_state: None,
1264 selection_history: Default::default(),
1265 autoclose_regions: Default::default(),
1266 snippet_stack: Default::default(),
1267 select_larger_syntax_node_stack: Vec::new(),
1268 ime_transaction: Default::default(),
1269 active_diagnostics: None,
1270 soft_wrap_mode_override,
1271 completion_provider: project.clone().map(|project| Box::new(project) as _),
1272 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1273 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1274 project,
1275 blink_manager: blink_manager.clone(),
1276 show_local_selections: true,
1277 show_scrollbars: true,
1278 mode,
1279 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1280 show_gutter: mode == EditorMode::Full,
1281 show_line_numbers: None,
1282 use_relative_line_numbers: None,
1283 show_git_diff_gutter: None,
1284 show_code_actions: None,
1285 show_runnables: None,
1286 show_wrap_guides: None,
1287 show_indent_guides,
1288 placeholder_text: None,
1289 highlight_order: 0,
1290 highlighted_rows: HashMap::default(),
1291 background_highlights: Default::default(),
1292 gutter_highlights: TreeMap::default(),
1293 scrollbar_marker_state: ScrollbarMarkerState::default(),
1294 active_indent_guides_state: ActiveIndentGuidesState::default(),
1295 nav_history: None,
1296 context_menu: RefCell::new(None),
1297 mouse_context_menu: None,
1298 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1299 completion_tasks: Default::default(),
1300 signature_help_state: SignatureHelpState::default(),
1301 auto_signature_help: None,
1302 find_all_references_task_sources: Vec::new(),
1303 next_completion_id: 0,
1304 next_inlay_id: 0,
1305 code_action_providers,
1306 available_code_actions: Default::default(),
1307 code_actions_task: Default::default(),
1308 document_highlights_task: Default::default(),
1309 linked_editing_range_task: Default::default(),
1310 pending_rename: Default::default(),
1311 searchable: true,
1312 cursor_shape: EditorSettings::get_global(cx)
1313 .cursor_shape
1314 .unwrap_or_default(),
1315 current_line_highlight: None,
1316 autoindent_mode: Some(AutoindentMode::EachLine),
1317 collapse_matches: false,
1318 workspace: None,
1319 input_enabled: true,
1320 use_modal_editing: mode == EditorMode::Full,
1321 read_only: false,
1322 use_autoclose: true,
1323 use_auto_surround: true,
1324 auto_replace_emoji_shortcode: false,
1325 leader_peer_id: None,
1326 remote_id: None,
1327 hover_state: Default::default(),
1328 hovered_link_state: Default::default(),
1329 inline_completion_provider: None,
1330 active_inline_completion: None,
1331 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1332 diff_map: DiffMap::default(),
1333 gutter_hovered: false,
1334 pixel_position_of_newest_cursor: None,
1335 last_bounds: None,
1336 expect_bounds_change: None,
1337 gutter_dimensions: GutterDimensions::default(),
1338 style: None,
1339 show_cursor_names: false,
1340 hovered_cursors: Default::default(),
1341 next_editor_action_id: EditorActionId::default(),
1342 editor_actions: Rc::default(),
1343 show_inline_completions_override: None,
1344 enable_inline_completions: true,
1345 menu_inline_completions_policy: MenuInlineCompletionsPolicy::ByProvider,
1346 custom_context_menu: None,
1347 show_git_blame_gutter: false,
1348 show_git_blame_inline: false,
1349 show_selection_menu: None,
1350 show_git_blame_inline_delay_task: None,
1351 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1352 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1353 .session
1354 .restore_unsaved_buffers,
1355 blame: None,
1356 blame_subscription: None,
1357 tasks: Default::default(),
1358 _subscriptions: vec![
1359 cx.observe(&buffer, Self::on_buffer_changed),
1360 cx.subscribe(&buffer, Self::on_buffer_event),
1361 cx.observe(&display_map, Self::on_display_map_changed),
1362 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1363 cx.observe_global::<SettingsStore>(Self::settings_changed),
1364 cx.observe_window_activation(|editor, cx| {
1365 let active = cx.is_window_active();
1366 editor.blink_manager.update(cx, |blink_manager, cx| {
1367 if active {
1368 blink_manager.enable(cx);
1369 } else {
1370 blink_manager.disable(cx);
1371 }
1372 });
1373 }),
1374 ],
1375 tasks_update_task: None,
1376 linked_edit_ranges: Default::default(),
1377 previous_search_ranges: None,
1378 breadcrumb_header: None,
1379 focused_block: None,
1380 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1381 addons: HashMap::default(),
1382 registered_buffers: HashMap::default(),
1383 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1384 selection_mark_mode: false,
1385 toggle_fold_multiple_buffers: Task::ready(()),
1386 text_style_refinement: None,
1387 };
1388 this.tasks_update_task = Some(this.refresh_runnables(cx));
1389 this._subscriptions.extend(project_subscriptions);
1390
1391 this.end_selection(cx);
1392 this.scroll_manager.show_scrollbar(cx);
1393
1394 if mode == EditorMode::Full {
1395 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1396 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1397
1398 if this.git_blame_inline_enabled {
1399 this.git_blame_inline_enabled = true;
1400 this.start_git_blame_inline(false, cx);
1401 }
1402
1403 if let Some(buffer) = buffer.read(cx).as_singleton() {
1404 if let Some(project) = this.project.as_ref() {
1405 let lsp_store = project.read(cx).lsp_store();
1406 let handle = lsp_store.update(cx, |lsp_store, cx| {
1407 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1408 });
1409 this.registered_buffers
1410 .insert(buffer.read(cx).remote_id(), handle);
1411 }
1412 }
1413 }
1414
1415 this.report_editor_event("Editor Opened", None, cx);
1416 this
1417 }
1418
1419 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1420 self.mouse_context_menu
1421 .as_ref()
1422 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1423 }
1424
1425 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1426 let mut key_context = KeyContext::new_with_defaults();
1427 key_context.add("Editor");
1428 let mode = match self.mode {
1429 EditorMode::SingleLine { .. } => "single_line",
1430 EditorMode::AutoHeight { .. } => "auto_height",
1431 EditorMode::Full => "full",
1432 };
1433
1434 if EditorSettings::jupyter_enabled(cx) {
1435 key_context.add("jupyter");
1436 }
1437
1438 key_context.set("mode", mode);
1439 if self.pending_rename.is_some() {
1440 key_context.add("renaming");
1441 }
1442 match self.context_menu.borrow().as_ref() {
1443 Some(CodeContextMenu::Completions(_)) => {
1444 key_context.add("menu");
1445 key_context.add("showing_completions")
1446 }
1447 Some(CodeContextMenu::CodeActions(_)) => {
1448 key_context.add("menu");
1449 key_context.add("showing_code_actions")
1450 }
1451 None => {}
1452 }
1453
1454 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1455 if !self.focus_handle(cx).contains_focused(cx)
1456 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
1457 {
1458 for addon in self.addons.values() {
1459 addon.extend_key_context(&mut key_context, cx)
1460 }
1461 }
1462
1463 if let Some(extension) = self
1464 .buffer
1465 .read(cx)
1466 .as_singleton()
1467 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1468 {
1469 key_context.set("extension", extension.to_string());
1470 }
1471
1472 if self.has_active_inline_completion() {
1473 key_context.add("copilot_suggestion");
1474 key_context.add("inline_completion");
1475 }
1476
1477 if self.selection_mark_mode {
1478 key_context.add("selection_mode");
1479 }
1480
1481 key_context
1482 }
1483
1484 pub fn new_file(
1485 workspace: &mut Workspace,
1486 _: &workspace::NewFile,
1487 cx: &mut ViewContext<Workspace>,
1488 ) {
1489 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1490 "Failed to create buffer",
1491 cx,
1492 |e, _| match e.error_code() {
1493 ErrorCode::RemoteUpgradeRequired => Some(format!(
1494 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1495 e.error_tag("required").unwrap_or("the latest version")
1496 )),
1497 _ => None,
1498 },
1499 );
1500 }
1501
1502 pub fn new_in_workspace(
1503 workspace: &mut Workspace,
1504 cx: &mut ViewContext<Workspace>,
1505 ) -> Task<Result<View<Editor>>> {
1506 let project = workspace.project().clone();
1507 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1508
1509 cx.spawn(|workspace, mut cx| async move {
1510 let buffer = create.await?;
1511 workspace.update(&mut cx, |workspace, cx| {
1512 let editor =
1513 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
1514 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
1515 editor
1516 })
1517 })
1518 }
1519
1520 fn new_file_vertical(
1521 workspace: &mut Workspace,
1522 _: &workspace::NewFileSplitVertical,
1523 cx: &mut ViewContext<Workspace>,
1524 ) {
1525 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
1526 }
1527
1528 fn new_file_horizontal(
1529 workspace: &mut Workspace,
1530 _: &workspace::NewFileSplitHorizontal,
1531 cx: &mut ViewContext<Workspace>,
1532 ) {
1533 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
1534 }
1535
1536 fn new_file_in_direction(
1537 workspace: &mut Workspace,
1538 direction: SplitDirection,
1539 cx: &mut ViewContext<Workspace>,
1540 ) {
1541 let project = workspace.project().clone();
1542 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1543
1544 cx.spawn(|workspace, mut cx| async move {
1545 let buffer = create.await?;
1546 workspace.update(&mut cx, move |workspace, cx| {
1547 workspace.split_item(
1548 direction,
1549 Box::new(
1550 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1551 ),
1552 cx,
1553 )
1554 })?;
1555 anyhow::Ok(())
1556 })
1557 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1558 ErrorCode::RemoteUpgradeRequired => Some(format!(
1559 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1560 e.error_tag("required").unwrap_or("the latest version")
1561 )),
1562 _ => None,
1563 });
1564 }
1565
1566 pub fn leader_peer_id(&self) -> Option<PeerId> {
1567 self.leader_peer_id
1568 }
1569
1570 pub fn buffer(&self) -> &Model<MultiBuffer> {
1571 &self.buffer
1572 }
1573
1574 pub fn workspace(&self) -> Option<View<Workspace>> {
1575 self.workspace.as_ref()?.0.upgrade()
1576 }
1577
1578 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1579 self.buffer().read(cx).title(cx)
1580 }
1581
1582 pub fn snapshot(&self, cx: &mut WindowContext) -> EditorSnapshot {
1583 let git_blame_gutter_max_author_length = self
1584 .render_git_blame_gutter(cx)
1585 .then(|| {
1586 if let Some(blame) = self.blame.as_ref() {
1587 let max_author_length =
1588 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1589 Some(max_author_length)
1590 } else {
1591 None
1592 }
1593 })
1594 .flatten();
1595
1596 EditorSnapshot {
1597 mode: self.mode,
1598 show_gutter: self.show_gutter,
1599 show_line_numbers: self.show_line_numbers,
1600 show_git_diff_gutter: self.show_git_diff_gutter,
1601 show_code_actions: self.show_code_actions,
1602 show_runnables: self.show_runnables,
1603 git_blame_gutter_max_author_length,
1604 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1605 scroll_anchor: self.scroll_manager.anchor(),
1606 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1607 placeholder_text: self.placeholder_text.clone(),
1608 diff_map: self.diff_map.snapshot(),
1609 is_focused: self.focus_handle.is_focused(cx),
1610 current_line_highlight: self
1611 .current_line_highlight
1612 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1613 gutter_hovered: self.gutter_hovered,
1614 }
1615 }
1616
1617 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1618 self.buffer.read(cx).language_at(point, cx)
1619 }
1620
1621 pub fn file_at<T: ToOffset>(
1622 &self,
1623 point: T,
1624 cx: &AppContext,
1625 ) -> Option<Arc<dyn language::File>> {
1626 self.buffer.read(cx).read(cx).file_at(point).cloned()
1627 }
1628
1629 pub fn active_excerpt(
1630 &self,
1631 cx: &AppContext,
1632 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1633 self.buffer
1634 .read(cx)
1635 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1636 }
1637
1638 pub fn mode(&self) -> EditorMode {
1639 self.mode
1640 }
1641
1642 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1643 self.collaboration_hub.as_deref()
1644 }
1645
1646 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1647 self.collaboration_hub = Some(hub);
1648 }
1649
1650 pub fn set_custom_context_menu(
1651 &mut self,
1652 f: impl 'static
1653 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1654 ) {
1655 self.custom_context_menu = Some(Box::new(f))
1656 }
1657
1658 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1659 self.completion_provider = provider;
1660 }
1661
1662 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1663 self.semantics_provider.clone()
1664 }
1665
1666 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1667 self.semantics_provider = provider;
1668 }
1669
1670 pub fn set_inline_completion_provider<T>(
1671 &mut self,
1672 provider: Option<Model<T>>,
1673 cx: &mut ViewContext<Self>,
1674 ) where
1675 T: InlineCompletionProvider,
1676 {
1677 self.inline_completion_provider =
1678 provider.map(|provider| RegisteredInlineCompletionProvider {
1679 _subscription: cx.observe(&provider, |this, _, cx| {
1680 if this.focus_handle.is_focused(cx) {
1681 this.update_visible_inline_completion(cx);
1682 }
1683 }),
1684 provider: Arc::new(provider),
1685 });
1686 self.refresh_inline_completion(false, false, cx);
1687 }
1688
1689 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
1690 self.placeholder_text.as_deref()
1691 }
1692
1693 pub fn set_placeholder_text(
1694 &mut self,
1695 placeholder_text: impl Into<Arc<str>>,
1696 cx: &mut ViewContext<Self>,
1697 ) {
1698 let placeholder_text = Some(placeholder_text.into());
1699 if self.placeholder_text != placeholder_text {
1700 self.placeholder_text = placeholder_text;
1701 cx.notify();
1702 }
1703 }
1704
1705 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1706 self.cursor_shape = cursor_shape;
1707
1708 // Disrupt blink for immediate user feedback that the cursor shape has changed
1709 self.blink_manager.update(cx, BlinkManager::show_cursor);
1710
1711 cx.notify();
1712 }
1713
1714 pub fn set_current_line_highlight(
1715 &mut self,
1716 current_line_highlight: Option<CurrentLineHighlight>,
1717 ) {
1718 self.current_line_highlight = current_line_highlight;
1719 }
1720
1721 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1722 self.collapse_matches = collapse_matches;
1723 }
1724
1725 pub fn register_buffers_with_language_servers(&mut self, cx: &mut ViewContext<Self>) {
1726 let buffers = self.buffer.read(cx).all_buffers();
1727 let Some(lsp_store) = self.lsp_store(cx) else {
1728 return;
1729 };
1730 lsp_store.update(cx, |lsp_store, cx| {
1731 for buffer in buffers {
1732 self.registered_buffers
1733 .entry(buffer.read(cx).remote_id())
1734 .or_insert_with(|| {
1735 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1736 });
1737 }
1738 })
1739 }
1740
1741 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1742 if self.collapse_matches {
1743 return range.start..range.start;
1744 }
1745 range.clone()
1746 }
1747
1748 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1749 if self.display_map.read(cx).clip_at_line_ends != clip {
1750 self.display_map
1751 .update(cx, |map, _| map.clip_at_line_ends = clip);
1752 }
1753 }
1754
1755 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1756 self.input_enabled = input_enabled;
1757 }
1758
1759 pub fn set_inline_completions_enabled(&mut self, enabled: bool, cx: &mut ViewContext<Self>) {
1760 self.enable_inline_completions = enabled;
1761 if !self.enable_inline_completions {
1762 self.take_active_inline_completion(cx);
1763 cx.notify();
1764 }
1765 }
1766
1767 pub fn set_menu_inline_completions_policy(&mut self, value: MenuInlineCompletionsPolicy) {
1768 self.menu_inline_completions_policy = value;
1769 }
1770
1771 pub fn set_autoindent(&mut self, autoindent: bool) {
1772 if autoindent {
1773 self.autoindent_mode = Some(AutoindentMode::EachLine);
1774 } else {
1775 self.autoindent_mode = None;
1776 }
1777 }
1778
1779 pub fn read_only(&self, cx: &AppContext) -> bool {
1780 self.read_only || self.buffer.read(cx).read_only()
1781 }
1782
1783 pub fn set_read_only(&mut self, read_only: bool) {
1784 self.read_only = read_only;
1785 }
1786
1787 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1788 self.use_autoclose = autoclose;
1789 }
1790
1791 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1792 self.use_auto_surround = auto_surround;
1793 }
1794
1795 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1796 self.auto_replace_emoji_shortcode = auto_replace;
1797 }
1798
1799 pub fn toggle_inline_completions(
1800 &mut self,
1801 _: &ToggleInlineCompletions,
1802 cx: &mut ViewContext<Self>,
1803 ) {
1804 if self.show_inline_completions_override.is_some() {
1805 self.set_show_inline_completions(None, cx);
1806 } else {
1807 let cursor = self.selections.newest_anchor().head();
1808 if let Some((buffer, cursor_buffer_position)) =
1809 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1810 {
1811 let show_inline_completions =
1812 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
1813 self.set_show_inline_completions(Some(show_inline_completions), cx);
1814 }
1815 }
1816 }
1817
1818 pub fn set_show_inline_completions(
1819 &mut self,
1820 show_inline_completions: Option<bool>,
1821 cx: &mut ViewContext<Self>,
1822 ) {
1823 self.show_inline_completions_override = show_inline_completions;
1824 self.refresh_inline_completion(false, true, cx);
1825 }
1826
1827 pub fn inline_completions_enabled(&self, cx: &AppContext) -> bool {
1828 let cursor = self.selections.newest_anchor().head();
1829 if let Some((buffer, buffer_position)) =
1830 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1831 {
1832 self.should_show_inline_completions(&buffer, buffer_position, cx)
1833 } else {
1834 false
1835 }
1836 }
1837
1838 fn should_show_inline_completions(
1839 &self,
1840 buffer: &Model<Buffer>,
1841 buffer_position: language::Anchor,
1842 cx: &AppContext,
1843 ) -> bool {
1844 if !self.snippet_stack.is_empty() {
1845 return false;
1846 }
1847
1848 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1849 return false;
1850 }
1851
1852 if let Some(provider) = self.inline_completion_provider() {
1853 if let Some(show_inline_completions) = self.show_inline_completions_override {
1854 show_inline_completions
1855 } else {
1856 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1857 }
1858 } else {
1859 false
1860 }
1861 }
1862
1863 fn inline_completions_disabled_in_scope(
1864 &self,
1865 buffer: &Model<Buffer>,
1866 buffer_position: language::Anchor,
1867 cx: &AppContext,
1868 ) -> bool {
1869 let snapshot = buffer.read(cx).snapshot();
1870 let settings = snapshot.settings_at(buffer_position, cx);
1871
1872 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1873 return false;
1874 };
1875
1876 scope.override_name().map_or(false, |scope_name| {
1877 settings
1878 .inline_completions_disabled_in
1879 .iter()
1880 .any(|s| s == scope_name)
1881 })
1882 }
1883
1884 pub fn set_use_modal_editing(&mut self, to: bool) {
1885 self.use_modal_editing = to;
1886 }
1887
1888 pub fn use_modal_editing(&self) -> bool {
1889 self.use_modal_editing
1890 }
1891
1892 fn selections_did_change(
1893 &mut self,
1894 local: bool,
1895 old_cursor_position: &Anchor,
1896 show_completions: bool,
1897 cx: &mut ViewContext<Self>,
1898 ) {
1899 cx.invalidate_character_coordinates();
1900
1901 // Copy selections to primary selection buffer
1902 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1903 if local {
1904 let selections = self.selections.all::<usize>(cx);
1905 let buffer_handle = self.buffer.read(cx).read(cx);
1906
1907 let mut text = String::new();
1908 for (index, selection) in selections.iter().enumerate() {
1909 let text_for_selection = buffer_handle
1910 .text_for_range(selection.start..selection.end)
1911 .collect::<String>();
1912
1913 text.push_str(&text_for_selection);
1914 if index != selections.len() - 1 {
1915 text.push('\n');
1916 }
1917 }
1918
1919 if !text.is_empty() {
1920 cx.write_to_primary(ClipboardItem::new_string(text));
1921 }
1922 }
1923
1924 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1925 self.buffer.update(cx, |buffer, cx| {
1926 buffer.set_active_selections(
1927 &self.selections.disjoint_anchors(),
1928 self.selections.line_mode,
1929 self.cursor_shape,
1930 cx,
1931 )
1932 });
1933 }
1934 let display_map = self
1935 .display_map
1936 .update(cx, |display_map, cx| display_map.snapshot(cx));
1937 let buffer = &display_map.buffer_snapshot;
1938 self.add_selections_state = None;
1939 self.select_next_state = None;
1940 self.select_prev_state = None;
1941 self.select_larger_syntax_node_stack.clear();
1942 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1943 self.snippet_stack
1944 .invalidate(&self.selections.disjoint_anchors(), buffer);
1945 self.take_rename(false, cx);
1946
1947 let new_cursor_position = self.selections.newest_anchor().head();
1948
1949 self.push_to_nav_history(
1950 *old_cursor_position,
1951 Some(new_cursor_position.to_point(buffer)),
1952 cx,
1953 );
1954
1955 if local {
1956 let new_cursor_position = self.selections.newest_anchor().head();
1957 let mut context_menu = self.context_menu.borrow_mut();
1958 let completion_menu = match context_menu.as_ref() {
1959 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1960 _ => {
1961 *context_menu = None;
1962 None
1963 }
1964 };
1965
1966 if let Some(completion_menu) = completion_menu {
1967 let cursor_position = new_cursor_position.to_offset(buffer);
1968 let (word_range, kind) =
1969 buffer.surrounding_word(completion_menu.initial_position, true);
1970 if kind == Some(CharKind::Word)
1971 && word_range.to_inclusive().contains(&cursor_position)
1972 {
1973 let mut completion_menu = completion_menu.clone();
1974 drop(context_menu);
1975
1976 let query = Self::completion_query(buffer, cursor_position);
1977 cx.spawn(move |this, mut cx| async move {
1978 completion_menu
1979 .filter(query.as_deref(), cx.background_executor().clone())
1980 .await;
1981
1982 this.update(&mut cx, |this, cx| {
1983 let mut context_menu = this.context_menu.borrow_mut();
1984 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1985 else {
1986 return;
1987 };
1988
1989 if menu.id > completion_menu.id {
1990 return;
1991 }
1992
1993 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1994 drop(context_menu);
1995 cx.notify();
1996 })
1997 })
1998 .detach();
1999
2000 if show_completions {
2001 self.show_completions(&ShowCompletions { trigger: None }, cx);
2002 }
2003 } else {
2004 drop(context_menu);
2005 self.hide_context_menu(cx);
2006 }
2007 } else {
2008 drop(context_menu);
2009 }
2010
2011 hide_hover(self, cx);
2012
2013 if old_cursor_position.to_display_point(&display_map).row()
2014 != new_cursor_position.to_display_point(&display_map).row()
2015 {
2016 self.available_code_actions.take();
2017 }
2018 self.refresh_code_actions(cx);
2019 self.refresh_document_highlights(cx);
2020 refresh_matching_bracket_highlights(self, cx);
2021 self.update_visible_inline_completion(cx);
2022 linked_editing_ranges::refresh_linked_ranges(self, cx);
2023 if self.git_blame_inline_enabled {
2024 self.start_inline_blame_timer(cx);
2025 }
2026 }
2027
2028 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2029 cx.emit(EditorEvent::SelectionsChanged { local });
2030
2031 if self.selections.disjoint_anchors().len() == 1 {
2032 cx.emit(SearchEvent::ActiveMatchChanged)
2033 }
2034 cx.notify();
2035 }
2036
2037 pub fn change_selections<R>(
2038 &mut self,
2039 autoscroll: Option<Autoscroll>,
2040 cx: &mut ViewContext<Self>,
2041 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2042 ) -> R {
2043 self.change_selections_inner(autoscroll, true, cx, change)
2044 }
2045
2046 pub fn change_selections_inner<R>(
2047 &mut self,
2048 autoscroll: Option<Autoscroll>,
2049 request_completions: bool,
2050 cx: &mut ViewContext<Self>,
2051 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2052 ) -> R {
2053 let old_cursor_position = self.selections.newest_anchor().head();
2054 self.push_to_selection_history();
2055
2056 let (changed, result) = self.selections.change_with(cx, change);
2057
2058 if changed {
2059 if let Some(autoscroll) = autoscroll {
2060 self.request_autoscroll(autoscroll, cx);
2061 }
2062 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2063
2064 if self.should_open_signature_help_automatically(
2065 &old_cursor_position,
2066 self.signature_help_state.backspace_pressed(),
2067 cx,
2068 ) {
2069 self.show_signature_help(&ShowSignatureHelp, cx);
2070 }
2071 self.signature_help_state.set_backspace_pressed(false);
2072 }
2073
2074 result
2075 }
2076
2077 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2078 where
2079 I: IntoIterator<Item = (Range<S>, T)>,
2080 S: ToOffset,
2081 T: Into<Arc<str>>,
2082 {
2083 if self.read_only(cx) {
2084 return;
2085 }
2086
2087 self.buffer
2088 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2089 }
2090
2091 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2092 where
2093 I: IntoIterator<Item = (Range<S>, T)>,
2094 S: ToOffset,
2095 T: Into<Arc<str>>,
2096 {
2097 if self.read_only(cx) {
2098 return;
2099 }
2100
2101 self.buffer.update(cx, |buffer, cx| {
2102 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2103 });
2104 }
2105
2106 pub fn edit_with_block_indent<I, S, T>(
2107 &mut self,
2108 edits: I,
2109 original_indent_columns: Vec<u32>,
2110 cx: &mut ViewContext<Self>,
2111 ) where
2112 I: IntoIterator<Item = (Range<S>, T)>,
2113 S: ToOffset,
2114 T: Into<Arc<str>>,
2115 {
2116 if self.read_only(cx) {
2117 return;
2118 }
2119
2120 self.buffer.update(cx, |buffer, cx| {
2121 buffer.edit(
2122 edits,
2123 Some(AutoindentMode::Block {
2124 original_indent_columns,
2125 }),
2126 cx,
2127 )
2128 });
2129 }
2130
2131 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2132 self.hide_context_menu(cx);
2133
2134 match phase {
2135 SelectPhase::Begin {
2136 position,
2137 add,
2138 click_count,
2139 } => self.begin_selection(position, add, click_count, cx),
2140 SelectPhase::BeginColumnar {
2141 position,
2142 goal_column,
2143 reset,
2144 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2145 SelectPhase::Extend {
2146 position,
2147 click_count,
2148 } => self.extend_selection(position, click_count, cx),
2149 SelectPhase::Update {
2150 position,
2151 goal_column,
2152 scroll_delta,
2153 } => self.update_selection(position, goal_column, scroll_delta, cx),
2154 SelectPhase::End => self.end_selection(cx),
2155 }
2156 }
2157
2158 fn extend_selection(
2159 &mut self,
2160 position: DisplayPoint,
2161 click_count: usize,
2162 cx: &mut ViewContext<Self>,
2163 ) {
2164 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2165 let tail = self.selections.newest::<usize>(cx).tail();
2166 self.begin_selection(position, false, click_count, cx);
2167
2168 let position = position.to_offset(&display_map, Bias::Left);
2169 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2170
2171 let mut pending_selection = self
2172 .selections
2173 .pending_anchor()
2174 .expect("extend_selection not called with pending selection");
2175 if position >= tail {
2176 pending_selection.start = tail_anchor;
2177 } else {
2178 pending_selection.end = tail_anchor;
2179 pending_selection.reversed = true;
2180 }
2181
2182 let mut pending_mode = self.selections.pending_mode().unwrap();
2183 match &mut pending_mode {
2184 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2185 _ => {}
2186 }
2187
2188 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2189 s.set_pending(pending_selection, pending_mode)
2190 });
2191 }
2192
2193 fn begin_selection(
2194 &mut self,
2195 position: DisplayPoint,
2196 add: bool,
2197 click_count: usize,
2198 cx: &mut ViewContext<Self>,
2199 ) {
2200 if !self.focus_handle.is_focused(cx) {
2201 self.last_focused_descendant = None;
2202 cx.focus(&self.focus_handle);
2203 }
2204
2205 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2206 let buffer = &display_map.buffer_snapshot;
2207 let newest_selection = self.selections.newest_anchor().clone();
2208 let position = display_map.clip_point(position, Bias::Left);
2209
2210 let start;
2211 let end;
2212 let mode;
2213 let mut auto_scroll;
2214 match click_count {
2215 1 => {
2216 start = buffer.anchor_before(position.to_point(&display_map));
2217 end = start;
2218 mode = SelectMode::Character;
2219 auto_scroll = true;
2220 }
2221 2 => {
2222 let range = movement::surrounding_word(&display_map, position);
2223 start = buffer.anchor_before(range.start.to_point(&display_map));
2224 end = buffer.anchor_before(range.end.to_point(&display_map));
2225 mode = SelectMode::Word(start..end);
2226 auto_scroll = true;
2227 }
2228 3 => {
2229 let position = display_map
2230 .clip_point(position, Bias::Left)
2231 .to_point(&display_map);
2232 let line_start = display_map.prev_line_boundary(position).0;
2233 let next_line_start = buffer.clip_point(
2234 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2235 Bias::Left,
2236 );
2237 start = buffer.anchor_before(line_start);
2238 end = buffer.anchor_before(next_line_start);
2239 mode = SelectMode::Line(start..end);
2240 auto_scroll = true;
2241 }
2242 _ => {
2243 start = buffer.anchor_before(0);
2244 end = buffer.anchor_before(buffer.len());
2245 mode = SelectMode::All;
2246 auto_scroll = false;
2247 }
2248 }
2249 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2250
2251 let point_to_delete: Option<usize> = {
2252 let selected_points: Vec<Selection<Point>> =
2253 self.selections.disjoint_in_range(start..end, cx);
2254
2255 if !add || click_count > 1 {
2256 None
2257 } else if !selected_points.is_empty() {
2258 Some(selected_points[0].id)
2259 } else {
2260 let clicked_point_already_selected =
2261 self.selections.disjoint.iter().find(|selection| {
2262 selection.start.to_point(buffer) == start.to_point(buffer)
2263 || selection.end.to_point(buffer) == end.to_point(buffer)
2264 });
2265
2266 clicked_point_already_selected.map(|selection| selection.id)
2267 }
2268 };
2269
2270 let selections_count = self.selections.count();
2271
2272 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2273 if let Some(point_to_delete) = point_to_delete {
2274 s.delete(point_to_delete);
2275
2276 if selections_count == 1 {
2277 s.set_pending_anchor_range(start..end, mode);
2278 }
2279 } else {
2280 if !add {
2281 s.clear_disjoint();
2282 } else if click_count > 1 {
2283 s.delete(newest_selection.id)
2284 }
2285
2286 s.set_pending_anchor_range(start..end, mode);
2287 }
2288 });
2289 }
2290
2291 fn begin_columnar_selection(
2292 &mut self,
2293 position: DisplayPoint,
2294 goal_column: u32,
2295 reset: bool,
2296 cx: &mut ViewContext<Self>,
2297 ) {
2298 if !self.focus_handle.is_focused(cx) {
2299 self.last_focused_descendant = None;
2300 cx.focus(&self.focus_handle);
2301 }
2302
2303 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2304
2305 if reset {
2306 let pointer_position = display_map
2307 .buffer_snapshot
2308 .anchor_before(position.to_point(&display_map));
2309
2310 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2311 s.clear_disjoint();
2312 s.set_pending_anchor_range(
2313 pointer_position..pointer_position,
2314 SelectMode::Character,
2315 );
2316 });
2317 }
2318
2319 let tail = self.selections.newest::<Point>(cx).tail();
2320 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2321
2322 if !reset {
2323 self.select_columns(
2324 tail.to_display_point(&display_map),
2325 position,
2326 goal_column,
2327 &display_map,
2328 cx,
2329 );
2330 }
2331 }
2332
2333 fn update_selection(
2334 &mut self,
2335 position: DisplayPoint,
2336 goal_column: u32,
2337 scroll_delta: gpui::Point<f32>,
2338 cx: &mut ViewContext<Self>,
2339 ) {
2340 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2341
2342 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2343 let tail = tail.to_display_point(&display_map);
2344 self.select_columns(tail, position, goal_column, &display_map, cx);
2345 } else if let Some(mut pending) = self.selections.pending_anchor() {
2346 let buffer = self.buffer.read(cx).snapshot(cx);
2347 let head;
2348 let tail;
2349 let mode = self.selections.pending_mode().unwrap();
2350 match &mode {
2351 SelectMode::Character => {
2352 head = position.to_point(&display_map);
2353 tail = pending.tail().to_point(&buffer);
2354 }
2355 SelectMode::Word(original_range) => {
2356 let original_display_range = original_range.start.to_display_point(&display_map)
2357 ..original_range.end.to_display_point(&display_map);
2358 let original_buffer_range = original_display_range.start.to_point(&display_map)
2359 ..original_display_range.end.to_point(&display_map);
2360 if movement::is_inside_word(&display_map, position)
2361 || original_display_range.contains(&position)
2362 {
2363 let word_range = movement::surrounding_word(&display_map, position);
2364 if word_range.start < original_display_range.start {
2365 head = word_range.start.to_point(&display_map);
2366 } else {
2367 head = word_range.end.to_point(&display_map);
2368 }
2369 } else {
2370 head = position.to_point(&display_map);
2371 }
2372
2373 if head <= original_buffer_range.start {
2374 tail = original_buffer_range.end;
2375 } else {
2376 tail = original_buffer_range.start;
2377 }
2378 }
2379 SelectMode::Line(original_range) => {
2380 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2381
2382 let position = display_map
2383 .clip_point(position, Bias::Left)
2384 .to_point(&display_map);
2385 let line_start = display_map.prev_line_boundary(position).0;
2386 let next_line_start = buffer.clip_point(
2387 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2388 Bias::Left,
2389 );
2390
2391 if line_start < original_range.start {
2392 head = line_start
2393 } else {
2394 head = next_line_start
2395 }
2396
2397 if head <= original_range.start {
2398 tail = original_range.end;
2399 } else {
2400 tail = original_range.start;
2401 }
2402 }
2403 SelectMode::All => {
2404 return;
2405 }
2406 };
2407
2408 if head < tail {
2409 pending.start = buffer.anchor_before(head);
2410 pending.end = buffer.anchor_before(tail);
2411 pending.reversed = true;
2412 } else {
2413 pending.start = buffer.anchor_before(tail);
2414 pending.end = buffer.anchor_before(head);
2415 pending.reversed = false;
2416 }
2417
2418 self.change_selections(None, cx, |s| {
2419 s.set_pending(pending, mode);
2420 });
2421 } else {
2422 log::error!("update_selection dispatched with no pending selection");
2423 return;
2424 }
2425
2426 self.apply_scroll_delta(scroll_delta, cx);
2427 cx.notify();
2428 }
2429
2430 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2431 self.columnar_selection_tail.take();
2432 if self.selections.pending_anchor().is_some() {
2433 let selections = self.selections.all::<usize>(cx);
2434 self.change_selections(None, cx, |s| {
2435 s.select(selections);
2436 s.clear_pending();
2437 });
2438 }
2439 }
2440
2441 fn select_columns(
2442 &mut self,
2443 tail: DisplayPoint,
2444 head: DisplayPoint,
2445 goal_column: u32,
2446 display_map: &DisplaySnapshot,
2447 cx: &mut ViewContext<Self>,
2448 ) {
2449 let start_row = cmp::min(tail.row(), head.row());
2450 let end_row = cmp::max(tail.row(), head.row());
2451 let start_column = cmp::min(tail.column(), goal_column);
2452 let end_column = cmp::max(tail.column(), goal_column);
2453 let reversed = start_column < tail.column();
2454
2455 let selection_ranges = (start_row.0..=end_row.0)
2456 .map(DisplayRow)
2457 .filter_map(|row| {
2458 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2459 let start = display_map
2460 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2461 .to_point(display_map);
2462 let end = display_map
2463 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2464 .to_point(display_map);
2465 if reversed {
2466 Some(end..start)
2467 } else {
2468 Some(start..end)
2469 }
2470 } else {
2471 None
2472 }
2473 })
2474 .collect::<Vec<_>>();
2475
2476 self.change_selections(None, cx, |s| {
2477 s.select_ranges(selection_ranges);
2478 });
2479 cx.notify();
2480 }
2481
2482 pub fn has_pending_nonempty_selection(&self) -> bool {
2483 let pending_nonempty_selection = match self.selections.pending_anchor() {
2484 Some(Selection { start, end, .. }) => start != end,
2485 None => false,
2486 };
2487
2488 pending_nonempty_selection
2489 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2490 }
2491
2492 pub fn has_pending_selection(&self) -> bool {
2493 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2494 }
2495
2496 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2497 self.selection_mark_mode = false;
2498
2499 if self.clear_expanded_diff_hunks(cx) {
2500 cx.notify();
2501 return;
2502 }
2503 if self.dismiss_menus_and_popups(true, cx) {
2504 return;
2505 }
2506
2507 if self.mode == EditorMode::Full
2508 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2509 {
2510 return;
2511 }
2512
2513 cx.propagate();
2514 }
2515
2516 pub fn dismiss_menus_and_popups(
2517 &mut self,
2518 should_report_inline_completion_event: bool,
2519 cx: &mut ViewContext<Self>,
2520 ) -> bool {
2521 if self.take_rename(false, cx).is_some() {
2522 return true;
2523 }
2524
2525 if hide_hover(self, cx) {
2526 return true;
2527 }
2528
2529 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2530 return true;
2531 }
2532
2533 if self.hide_context_menu(cx).is_some() {
2534 if self.show_inline_completions_in_menu(cx) && self.has_active_inline_completion() {
2535 self.update_visible_inline_completion(cx);
2536 }
2537 return true;
2538 }
2539
2540 if self.mouse_context_menu.take().is_some() {
2541 return true;
2542 }
2543
2544 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2545 return true;
2546 }
2547
2548 if self.snippet_stack.pop().is_some() {
2549 return true;
2550 }
2551
2552 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2553 self.dismiss_diagnostics(cx);
2554 return true;
2555 }
2556
2557 false
2558 }
2559
2560 fn linked_editing_ranges_for(
2561 &self,
2562 selection: Range<text::Anchor>,
2563 cx: &AppContext,
2564 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2565 if self.linked_edit_ranges.is_empty() {
2566 return None;
2567 }
2568 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2569 selection.end.buffer_id.and_then(|end_buffer_id| {
2570 if selection.start.buffer_id != Some(end_buffer_id) {
2571 return None;
2572 }
2573 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2574 let snapshot = buffer.read(cx).snapshot();
2575 self.linked_edit_ranges
2576 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2577 .map(|ranges| (ranges, snapshot, buffer))
2578 })?;
2579 use text::ToOffset as TO;
2580 // find offset from the start of current range to current cursor position
2581 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2582
2583 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2584 let start_difference = start_offset - start_byte_offset;
2585 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2586 let end_difference = end_offset - start_byte_offset;
2587 // Current range has associated linked ranges.
2588 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2589 for range in linked_ranges.iter() {
2590 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2591 let end_offset = start_offset + end_difference;
2592 let start_offset = start_offset + start_difference;
2593 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2594 continue;
2595 }
2596 if self.selections.disjoint_anchor_ranges().any(|s| {
2597 if s.start.buffer_id != selection.start.buffer_id
2598 || s.end.buffer_id != selection.end.buffer_id
2599 {
2600 return false;
2601 }
2602 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2603 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2604 }) {
2605 continue;
2606 }
2607 let start = buffer_snapshot.anchor_after(start_offset);
2608 let end = buffer_snapshot.anchor_after(end_offset);
2609 linked_edits
2610 .entry(buffer.clone())
2611 .or_default()
2612 .push(start..end);
2613 }
2614 Some(linked_edits)
2615 }
2616
2617 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2618 let text: Arc<str> = text.into();
2619
2620 if self.read_only(cx) {
2621 return;
2622 }
2623
2624 let selections = self.selections.all_adjusted(cx);
2625 let mut bracket_inserted = false;
2626 let mut edits = Vec::new();
2627 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2628 let mut new_selections = Vec::with_capacity(selections.len());
2629 let mut new_autoclose_regions = Vec::new();
2630 let snapshot = self.buffer.read(cx).read(cx);
2631
2632 for (selection, autoclose_region) in
2633 self.selections_with_autoclose_regions(selections, &snapshot)
2634 {
2635 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2636 // Determine if the inserted text matches the opening or closing
2637 // bracket of any of this language's bracket pairs.
2638 let mut bracket_pair = None;
2639 let mut is_bracket_pair_start = false;
2640 let mut is_bracket_pair_end = false;
2641 if !text.is_empty() {
2642 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2643 // and they are removing the character that triggered IME popup.
2644 for (pair, enabled) in scope.brackets() {
2645 if !pair.close && !pair.surround {
2646 continue;
2647 }
2648
2649 if enabled && pair.start.ends_with(text.as_ref()) {
2650 let prefix_len = pair.start.len() - text.len();
2651 let preceding_text_matches_prefix = prefix_len == 0
2652 || (selection.start.column >= (prefix_len as u32)
2653 && snapshot.contains_str_at(
2654 Point::new(
2655 selection.start.row,
2656 selection.start.column - (prefix_len as u32),
2657 ),
2658 &pair.start[..prefix_len],
2659 ));
2660 if preceding_text_matches_prefix {
2661 bracket_pair = Some(pair.clone());
2662 is_bracket_pair_start = true;
2663 break;
2664 }
2665 }
2666 if pair.end.as_str() == text.as_ref() {
2667 bracket_pair = Some(pair.clone());
2668 is_bracket_pair_end = true;
2669 break;
2670 }
2671 }
2672 }
2673
2674 if let Some(bracket_pair) = bracket_pair {
2675 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2676 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2677 let auto_surround =
2678 self.use_auto_surround && snapshot_settings.use_auto_surround;
2679 if selection.is_empty() {
2680 if is_bracket_pair_start {
2681 // If the inserted text is a suffix of an opening bracket and the
2682 // selection is preceded by the rest of the opening bracket, then
2683 // insert the closing bracket.
2684 let following_text_allows_autoclose = snapshot
2685 .chars_at(selection.start)
2686 .next()
2687 .map_or(true, |c| scope.should_autoclose_before(c));
2688
2689 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2690 && bracket_pair.start.len() == 1
2691 {
2692 let target = bracket_pair.start.chars().next().unwrap();
2693 let current_line_count = snapshot
2694 .reversed_chars_at(selection.start)
2695 .take_while(|&c| c != '\n')
2696 .filter(|&c| c == target)
2697 .count();
2698 current_line_count % 2 == 1
2699 } else {
2700 false
2701 };
2702
2703 if autoclose
2704 && bracket_pair.close
2705 && following_text_allows_autoclose
2706 && !is_closing_quote
2707 {
2708 let anchor = snapshot.anchor_before(selection.end);
2709 new_selections.push((selection.map(|_| anchor), text.len()));
2710 new_autoclose_regions.push((
2711 anchor,
2712 text.len(),
2713 selection.id,
2714 bracket_pair.clone(),
2715 ));
2716 edits.push((
2717 selection.range(),
2718 format!("{}{}", text, bracket_pair.end).into(),
2719 ));
2720 bracket_inserted = true;
2721 continue;
2722 }
2723 }
2724
2725 if let Some(region) = autoclose_region {
2726 // If the selection is followed by an auto-inserted closing bracket,
2727 // then don't insert that closing bracket again; just move the selection
2728 // past the closing bracket.
2729 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2730 && text.as_ref() == region.pair.end.as_str();
2731 if should_skip {
2732 let anchor = snapshot.anchor_after(selection.end);
2733 new_selections
2734 .push((selection.map(|_| anchor), region.pair.end.len()));
2735 continue;
2736 }
2737 }
2738
2739 let always_treat_brackets_as_autoclosed = snapshot
2740 .settings_at(selection.start, cx)
2741 .always_treat_brackets_as_autoclosed;
2742 if always_treat_brackets_as_autoclosed
2743 && is_bracket_pair_end
2744 && snapshot.contains_str_at(selection.end, text.as_ref())
2745 {
2746 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2747 // and the inserted text is a closing bracket and the selection is followed
2748 // by the closing bracket then move the selection past the closing bracket.
2749 let anchor = snapshot.anchor_after(selection.end);
2750 new_selections.push((selection.map(|_| anchor), text.len()));
2751 continue;
2752 }
2753 }
2754 // If an opening bracket is 1 character long and is typed while
2755 // text is selected, then surround that text with the bracket pair.
2756 else if auto_surround
2757 && bracket_pair.surround
2758 && is_bracket_pair_start
2759 && bracket_pair.start.chars().count() == 1
2760 {
2761 edits.push((selection.start..selection.start, text.clone()));
2762 edits.push((
2763 selection.end..selection.end,
2764 bracket_pair.end.as_str().into(),
2765 ));
2766 bracket_inserted = true;
2767 new_selections.push((
2768 Selection {
2769 id: selection.id,
2770 start: snapshot.anchor_after(selection.start),
2771 end: snapshot.anchor_before(selection.end),
2772 reversed: selection.reversed,
2773 goal: selection.goal,
2774 },
2775 0,
2776 ));
2777 continue;
2778 }
2779 }
2780 }
2781
2782 if self.auto_replace_emoji_shortcode
2783 && selection.is_empty()
2784 && text.as_ref().ends_with(':')
2785 {
2786 if let Some(possible_emoji_short_code) =
2787 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2788 {
2789 if !possible_emoji_short_code.is_empty() {
2790 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2791 let emoji_shortcode_start = Point::new(
2792 selection.start.row,
2793 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2794 );
2795
2796 // Remove shortcode from buffer
2797 edits.push((
2798 emoji_shortcode_start..selection.start,
2799 "".to_string().into(),
2800 ));
2801 new_selections.push((
2802 Selection {
2803 id: selection.id,
2804 start: snapshot.anchor_after(emoji_shortcode_start),
2805 end: snapshot.anchor_before(selection.start),
2806 reversed: selection.reversed,
2807 goal: selection.goal,
2808 },
2809 0,
2810 ));
2811
2812 // Insert emoji
2813 let selection_start_anchor = snapshot.anchor_after(selection.start);
2814 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2815 edits.push((selection.start..selection.end, emoji.to_string().into()));
2816
2817 continue;
2818 }
2819 }
2820 }
2821 }
2822
2823 // If not handling any auto-close operation, then just replace the selected
2824 // text with the given input and move the selection to the end of the
2825 // newly inserted text.
2826 let anchor = snapshot.anchor_after(selection.end);
2827 if !self.linked_edit_ranges.is_empty() {
2828 let start_anchor = snapshot.anchor_before(selection.start);
2829
2830 let is_word_char = text.chars().next().map_or(true, |char| {
2831 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2832 classifier.is_word(char)
2833 });
2834
2835 if is_word_char {
2836 if let Some(ranges) = self
2837 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2838 {
2839 for (buffer, edits) in ranges {
2840 linked_edits
2841 .entry(buffer.clone())
2842 .or_default()
2843 .extend(edits.into_iter().map(|range| (range, text.clone())));
2844 }
2845 }
2846 }
2847 }
2848
2849 new_selections.push((selection.map(|_| anchor), 0));
2850 edits.push((selection.start..selection.end, text.clone()));
2851 }
2852
2853 drop(snapshot);
2854
2855 self.transact(cx, |this, cx| {
2856 this.buffer.update(cx, |buffer, cx| {
2857 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2858 });
2859 for (buffer, edits) in linked_edits {
2860 buffer.update(cx, |buffer, cx| {
2861 let snapshot = buffer.snapshot();
2862 let edits = edits
2863 .into_iter()
2864 .map(|(range, text)| {
2865 use text::ToPoint as TP;
2866 let end_point = TP::to_point(&range.end, &snapshot);
2867 let start_point = TP::to_point(&range.start, &snapshot);
2868 (start_point..end_point, text)
2869 })
2870 .sorted_by_key(|(range, _)| range.start)
2871 .collect::<Vec<_>>();
2872 buffer.edit(edits, None, cx);
2873 })
2874 }
2875 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2876 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2877 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2878 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2879 .zip(new_selection_deltas)
2880 .map(|(selection, delta)| Selection {
2881 id: selection.id,
2882 start: selection.start + delta,
2883 end: selection.end + delta,
2884 reversed: selection.reversed,
2885 goal: SelectionGoal::None,
2886 })
2887 .collect::<Vec<_>>();
2888
2889 let mut i = 0;
2890 for (position, delta, selection_id, pair) in new_autoclose_regions {
2891 let position = position.to_offset(&map.buffer_snapshot) + delta;
2892 let start = map.buffer_snapshot.anchor_before(position);
2893 let end = map.buffer_snapshot.anchor_after(position);
2894 while let Some(existing_state) = this.autoclose_regions.get(i) {
2895 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2896 Ordering::Less => i += 1,
2897 Ordering::Greater => break,
2898 Ordering::Equal => {
2899 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2900 Ordering::Less => i += 1,
2901 Ordering::Equal => break,
2902 Ordering::Greater => break,
2903 }
2904 }
2905 }
2906 }
2907 this.autoclose_regions.insert(
2908 i,
2909 AutocloseRegion {
2910 selection_id,
2911 range: start..end,
2912 pair,
2913 },
2914 );
2915 }
2916
2917 let had_active_inline_completion = this.has_active_inline_completion();
2918 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2919 s.select(new_selections)
2920 });
2921
2922 if !bracket_inserted {
2923 if let Some(on_type_format_task) =
2924 this.trigger_on_type_formatting(text.to_string(), cx)
2925 {
2926 on_type_format_task.detach_and_log_err(cx);
2927 }
2928 }
2929
2930 let editor_settings = EditorSettings::get_global(cx);
2931 if bracket_inserted
2932 && (editor_settings.auto_signature_help
2933 || editor_settings.show_signature_help_after_edits)
2934 {
2935 this.show_signature_help(&ShowSignatureHelp, cx);
2936 }
2937
2938 let trigger_in_words =
2939 this.show_inline_completions_in_menu(cx) || !had_active_inline_completion;
2940 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2941 linked_editing_ranges::refresh_linked_ranges(this, cx);
2942 this.refresh_inline_completion(true, false, cx);
2943 });
2944 }
2945
2946 fn find_possible_emoji_shortcode_at_position(
2947 snapshot: &MultiBufferSnapshot,
2948 position: Point,
2949 ) -> Option<String> {
2950 let mut chars = Vec::new();
2951 let mut found_colon = false;
2952 for char in snapshot.reversed_chars_at(position).take(100) {
2953 // Found a possible emoji shortcode in the middle of the buffer
2954 if found_colon {
2955 if char.is_whitespace() {
2956 chars.reverse();
2957 return Some(chars.iter().collect());
2958 }
2959 // If the previous character is not a whitespace, we are in the middle of a word
2960 // and we only want to complete the shortcode if the word is made up of other emojis
2961 let mut containing_word = String::new();
2962 for ch in snapshot
2963 .reversed_chars_at(position)
2964 .skip(chars.len() + 1)
2965 .take(100)
2966 {
2967 if ch.is_whitespace() {
2968 break;
2969 }
2970 containing_word.push(ch);
2971 }
2972 let containing_word = containing_word.chars().rev().collect::<String>();
2973 if util::word_consists_of_emojis(containing_word.as_str()) {
2974 chars.reverse();
2975 return Some(chars.iter().collect());
2976 }
2977 }
2978
2979 if char.is_whitespace() || !char.is_ascii() {
2980 return None;
2981 }
2982 if char == ':' {
2983 found_colon = true;
2984 } else {
2985 chars.push(char);
2986 }
2987 }
2988 // Found a possible emoji shortcode at the beginning of the buffer
2989 chars.reverse();
2990 Some(chars.iter().collect())
2991 }
2992
2993 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2994 self.transact(cx, |this, cx| {
2995 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2996 let selections = this.selections.all::<usize>(cx);
2997 let multi_buffer = this.buffer.read(cx);
2998 let buffer = multi_buffer.snapshot(cx);
2999 selections
3000 .iter()
3001 .map(|selection| {
3002 let start_point = selection.start.to_point(&buffer);
3003 let mut indent =
3004 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3005 indent.len = cmp::min(indent.len, start_point.column);
3006 let start = selection.start;
3007 let end = selection.end;
3008 let selection_is_empty = start == end;
3009 let language_scope = buffer.language_scope_at(start);
3010 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3011 &language_scope
3012 {
3013 let leading_whitespace_len = buffer
3014 .reversed_chars_at(start)
3015 .take_while(|c| c.is_whitespace() && *c != '\n')
3016 .map(|c| c.len_utf8())
3017 .sum::<usize>();
3018
3019 let trailing_whitespace_len = buffer
3020 .chars_at(end)
3021 .take_while(|c| c.is_whitespace() && *c != '\n')
3022 .map(|c| c.len_utf8())
3023 .sum::<usize>();
3024
3025 let insert_extra_newline =
3026 language.brackets().any(|(pair, enabled)| {
3027 let pair_start = pair.start.trim_end();
3028 let pair_end = pair.end.trim_start();
3029
3030 enabled
3031 && pair.newline
3032 && buffer.contains_str_at(
3033 end + trailing_whitespace_len,
3034 pair_end,
3035 )
3036 && buffer.contains_str_at(
3037 (start - leading_whitespace_len)
3038 .saturating_sub(pair_start.len()),
3039 pair_start,
3040 )
3041 });
3042
3043 // Comment extension on newline is allowed only for cursor selections
3044 let comment_delimiter = maybe!({
3045 if !selection_is_empty {
3046 return None;
3047 }
3048
3049 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3050 return None;
3051 }
3052
3053 let delimiters = language.line_comment_prefixes();
3054 let max_len_of_delimiter =
3055 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3056 let (snapshot, range) =
3057 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3058
3059 let mut index_of_first_non_whitespace = 0;
3060 let comment_candidate = snapshot
3061 .chars_for_range(range)
3062 .skip_while(|c| {
3063 let should_skip = c.is_whitespace();
3064 if should_skip {
3065 index_of_first_non_whitespace += 1;
3066 }
3067 should_skip
3068 })
3069 .take(max_len_of_delimiter)
3070 .collect::<String>();
3071 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3072 comment_candidate.starts_with(comment_prefix.as_ref())
3073 })?;
3074 let cursor_is_placed_after_comment_marker =
3075 index_of_first_non_whitespace + comment_prefix.len()
3076 <= start_point.column as usize;
3077 if cursor_is_placed_after_comment_marker {
3078 Some(comment_prefix.clone())
3079 } else {
3080 None
3081 }
3082 });
3083 (comment_delimiter, insert_extra_newline)
3084 } else {
3085 (None, false)
3086 };
3087
3088 let capacity_for_delimiter = comment_delimiter
3089 .as_deref()
3090 .map(str::len)
3091 .unwrap_or_default();
3092 let mut new_text =
3093 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3094 new_text.push('\n');
3095 new_text.extend(indent.chars());
3096 if let Some(delimiter) = &comment_delimiter {
3097 new_text.push_str(delimiter);
3098 }
3099 if insert_extra_newline {
3100 new_text = new_text.repeat(2);
3101 }
3102
3103 let anchor = buffer.anchor_after(end);
3104 let new_selection = selection.map(|_| anchor);
3105 (
3106 (start..end, new_text),
3107 (insert_extra_newline, new_selection),
3108 )
3109 })
3110 .unzip()
3111 };
3112
3113 this.edit_with_autoindent(edits, cx);
3114 let buffer = this.buffer.read(cx).snapshot(cx);
3115 let new_selections = selection_fixup_info
3116 .into_iter()
3117 .map(|(extra_newline_inserted, new_selection)| {
3118 let mut cursor = new_selection.end.to_point(&buffer);
3119 if extra_newline_inserted {
3120 cursor.row -= 1;
3121 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3122 }
3123 new_selection.map(|_| cursor)
3124 })
3125 .collect();
3126
3127 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3128 this.refresh_inline_completion(true, false, cx);
3129 });
3130 }
3131
3132 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3133 let buffer = self.buffer.read(cx);
3134 let snapshot = buffer.snapshot(cx);
3135
3136 let mut edits = Vec::new();
3137 let mut rows = Vec::new();
3138
3139 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3140 let cursor = selection.head();
3141 let row = cursor.row;
3142
3143 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3144
3145 let newline = "\n".to_string();
3146 edits.push((start_of_line..start_of_line, newline));
3147
3148 rows.push(row + rows_inserted as u32);
3149 }
3150
3151 self.transact(cx, |editor, cx| {
3152 editor.edit(edits, cx);
3153
3154 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3155 let mut index = 0;
3156 s.move_cursors_with(|map, _, _| {
3157 let row = rows[index];
3158 index += 1;
3159
3160 let point = Point::new(row, 0);
3161 let boundary = map.next_line_boundary(point).1;
3162 let clipped = map.clip_point(boundary, Bias::Left);
3163
3164 (clipped, SelectionGoal::None)
3165 });
3166 });
3167
3168 let mut indent_edits = Vec::new();
3169 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3170 for row in rows {
3171 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3172 for (row, indent) in indents {
3173 if indent.len == 0 {
3174 continue;
3175 }
3176
3177 let text = match indent.kind {
3178 IndentKind::Space => " ".repeat(indent.len as usize),
3179 IndentKind::Tab => "\t".repeat(indent.len as usize),
3180 };
3181 let point = Point::new(row.0, 0);
3182 indent_edits.push((point..point, text));
3183 }
3184 }
3185 editor.edit(indent_edits, cx);
3186 });
3187 }
3188
3189 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3190 let buffer = self.buffer.read(cx);
3191 let snapshot = buffer.snapshot(cx);
3192
3193 let mut edits = Vec::new();
3194 let mut rows = Vec::new();
3195 let mut rows_inserted = 0;
3196
3197 for selection in self.selections.all_adjusted(cx) {
3198 let cursor = selection.head();
3199 let row = cursor.row;
3200
3201 let point = Point::new(row + 1, 0);
3202 let start_of_line = snapshot.clip_point(point, Bias::Left);
3203
3204 let newline = "\n".to_string();
3205 edits.push((start_of_line..start_of_line, newline));
3206
3207 rows_inserted += 1;
3208 rows.push(row + rows_inserted);
3209 }
3210
3211 self.transact(cx, |editor, cx| {
3212 editor.edit(edits, cx);
3213
3214 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3215 let mut index = 0;
3216 s.move_cursors_with(|map, _, _| {
3217 let row = rows[index];
3218 index += 1;
3219
3220 let point = Point::new(row, 0);
3221 let boundary = map.next_line_boundary(point).1;
3222 let clipped = map.clip_point(boundary, Bias::Left);
3223
3224 (clipped, SelectionGoal::None)
3225 });
3226 });
3227
3228 let mut indent_edits = Vec::new();
3229 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3230 for row in rows {
3231 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3232 for (row, indent) in indents {
3233 if indent.len == 0 {
3234 continue;
3235 }
3236
3237 let text = match indent.kind {
3238 IndentKind::Space => " ".repeat(indent.len as usize),
3239 IndentKind::Tab => "\t".repeat(indent.len as usize),
3240 };
3241 let point = Point::new(row.0, 0);
3242 indent_edits.push((point..point, text));
3243 }
3244 }
3245 editor.edit(indent_edits, cx);
3246 });
3247 }
3248
3249 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3250 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3251 original_indent_columns: Vec::new(),
3252 });
3253 self.insert_with_autoindent_mode(text, autoindent, cx);
3254 }
3255
3256 fn insert_with_autoindent_mode(
3257 &mut self,
3258 text: &str,
3259 autoindent_mode: Option<AutoindentMode>,
3260 cx: &mut ViewContext<Self>,
3261 ) {
3262 if self.read_only(cx) {
3263 return;
3264 }
3265
3266 let text: Arc<str> = text.into();
3267 self.transact(cx, |this, cx| {
3268 let old_selections = this.selections.all_adjusted(cx);
3269 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3270 let anchors = {
3271 let snapshot = buffer.read(cx);
3272 old_selections
3273 .iter()
3274 .map(|s| {
3275 let anchor = snapshot.anchor_after(s.head());
3276 s.map(|_| anchor)
3277 })
3278 .collect::<Vec<_>>()
3279 };
3280 buffer.edit(
3281 old_selections
3282 .iter()
3283 .map(|s| (s.start..s.end, text.clone())),
3284 autoindent_mode,
3285 cx,
3286 );
3287 anchors
3288 });
3289
3290 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3291 s.select_anchors(selection_anchors);
3292 })
3293 });
3294 }
3295
3296 fn trigger_completion_on_input(
3297 &mut self,
3298 text: &str,
3299 trigger_in_words: bool,
3300 cx: &mut ViewContext<Self>,
3301 ) {
3302 if self.is_completion_trigger(text, trigger_in_words, cx) {
3303 self.show_completions(
3304 &ShowCompletions {
3305 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3306 },
3307 cx,
3308 );
3309 } else {
3310 self.hide_context_menu(cx);
3311 }
3312 }
3313
3314 fn is_completion_trigger(
3315 &self,
3316 text: &str,
3317 trigger_in_words: bool,
3318 cx: &mut ViewContext<Self>,
3319 ) -> bool {
3320 let position = self.selections.newest_anchor().head();
3321 let multibuffer = self.buffer.read(cx);
3322 let Some(buffer) = position
3323 .buffer_id
3324 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3325 else {
3326 return false;
3327 };
3328
3329 if let Some(completion_provider) = &self.completion_provider {
3330 completion_provider.is_completion_trigger(
3331 &buffer,
3332 position.text_anchor,
3333 text,
3334 trigger_in_words,
3335 cx,
3336 )
3337 } else {
3338 false
3339 }
3340 }
3341
3342 /// If any empty selections is touching the start of its innermost containing autoclose
3343 /// region, expand it to select the brackets.
3344 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3345 let selections = self.selections.all::<usize>(cx);
3346 let buffer = self.buffer.read(cx).read(cx);
3347 let new_selections = self
3348 .selections_with_autoclose_regions(selections, &buffer)
3349 .map(|(mut selection, region)| {
3350 if !selection.is_empty() {
3351 return selection;
3352 }
3353
3354 if let Some(region) = region {
3355 let mut range = region.range.to_offset(&buffer);
3356 if selection.start == range.start && range.start >= region.pair.start.len() {
3357 range.start -= region.pair.start.len();
3358 if buffer.contains_str_at(range.start, ®ion.pair.start)
3359 && buffer.contains_str_at(range.end, ®ion.pair.end)
3360 {
3361 range.end += region.pair.end.len();
3362 selection.start = range.start;
3363 selection.end = range.end;
3364
3365 return selection;
3366 }
3367 }
3368 }
3369
3370 let always_treat_brackets_as_autoclosed = buffer
3371 .settings_at(selection.start, cx)
3372 .always_treat_brackets_as_autoclosed;
3373
3374 if !always_treat_brackets_as_autoclosed {
3375 return selection;
3376 }
3377
3378 if let Some(scope) = buffer.language_scope_at(selection.start) {
3379 for (pair, enabled) in scope.brackets() {
3380 if !enabled || !pair.close {
3381 continue;
3382 }
3383
3384 if buffer.contains_str_at(selection.start, &pair.end) {
3385 let pair_start_len = pair.start.len();
3386 if buffer.contains_str_at(
3387 selection.start.saturating_sub(pair_start_len),
3388 &pair.start,
3389 ) {
3390 selection.start -= pair_start_len;
3391 selection.end += pair.end.len();
3392
3393 return selection;
3394 }
3395 }
3396 }
3397 }
3398
3399 selection
3400 })
3401 .collect();
3402
3403 drop(buffer);
3404 self.change_selections(None, cx, |selections| selections.select(new_selections));
3405 }
3406
3407 /// Iterate the given selections, and for each one, find the smallest surrounding
3408 /// autoclose region. This uses the ordering of the selections and the autoclose
3409 /// regions to avoid repeated comparisons.
3410 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3411 &'a self,
3412 selections: impl IntoIterator<Item = Selection<D>>,
3413 buffer: &'a MultiBufferSnapshot,
3414 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3415 let mut i = 0;
3416 let mut regions = self.autoclose_regions.as_slice();
3417 selections.into_iter().map(move |selection| {
3418 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3419
3420 let mut enclosing = None;
3421 while let Some(pair_state) = regions.get(i) {
3422 if pair_state.range.end.to_offset(buffer) < range.start {
3423 regions = ®ions[i + 1..];
3424 i = 0;
3425 } else if pair_state.range.start.to_offset(buffer) > range.end {
3426 break;
3427 } else {
3428 if pair_state.selection_id == selection.id {
3429 enclosing = Some(pair_state);
3430 }
3431 i += 1;
3432 }
3433 }
3434
3435 (selection, enclosing)
3436 })
3437 }
3438
3439 /// Remove any autoclose regions that no longer contain their selection.
3440 fn invalidate_autoclose_regions(
3441 &mut self,
3442 mut selections: &[Selection<Anchor>],
3443 buffer: &MultiBufferSnapshot,
3444 ) {
3445 self.autoclose_regions.retain(|state| {
3446 let mut i = 0;
3447 while let Some(selection) = selections.get(i) {
3448 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3449 selections = &selections[1..];
3450 continue;
3451 }
3452 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3453 break;
3454 }
3455 if selection.id == state.selection_id {
3456 return true;
3457 } else {
3458 i += 1;
3459 }
3460 }
3461 false
3462 });
3463 }
3464
3465 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3466 let offset = position.to_offset(buffer);
3467 let (word_range, kind) = buffer.surrounding_word(offset, true);
3468 if offset > word_range.start && kind == Some(CharKind::Word) {
3469 Some(
3470 buffer
3471 .text_for_range(word_range.start..offset)
3472 .collect::<String>(),
3473 )
3474 } else {
3475 None
3476 }
3477 }
3478
3479 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3480 self.refresh_inlay_hints(
3481 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3482 cx,
3483 );
3484 }
3485
3486 pub fn inlay_hints_enabled(&self) -> bool {
3487 self.inlay_hint_cache.enabled
3488 }
3489
3490 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3491 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3492 return;
3493 }
3494
3495 let reason_description = reason.description();
3496 let ignore_debounce = matches!(
3497 reason,
3498 InlayHintRefreshReason::SettingsChange(_)
3499 | InlayHintRefreshReason::Toggle(_)
3500 | InlayHintRefreshReason::ExcerptsRemoved(_)
3501 );
3502 let (invalidate_cache, required_languages) = match reason {
3503 InlayHintRefreshReason::Toggle(enabled) => {
3504 self.inlay_hint_cache.enabled = enabled;
3505 if enabled {
3506 (InvalidationStrategy::RefreshRequested, None)
3507 } else {
3508 self.inlay_hint_cache.clear();
3509 self.splice_inlays(
3510 self.visible_inlay_hints(cx)
3511 .iter()
3512 .map(|inlay| inlay.id)
3513 .collect(),
3514 Vec::new(),
3515 cx,
3516 );
3517 return;
3518 }
3519 }
3520 InlayHintRefreshReason::SettingsChange(new_settings) => {
3521 match self.inlay_hint_cache.update_settings(
3522 &self.buffer,
3523 new_settings,
3524 self.visible_inlay_hints(cx),
3525 cx,
3526 ) {
3527 ControlFlow::Break(Some(InlaySplice {
3528 to_remove,
3529 to_insert,
3530 })) => {
3531 self.splice_inlays(to_remove, to_insert, cx);
3532 return;
3533 }
3534 ControlFlow::Break(None) => return,
3535 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3536 }
3537 }
3538 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3539 if let Some(InlaySplice {
3540 to_remove,
3541 to_insert,
3542 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3543 {
3544 self.splice_inlays(to_remove, to_insert, cx);
3545 }
3546 return;
3547 }
3548 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3549 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3550 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3551 }
3552 InlayHintRefreshReason::RefreshRequested => {
3553 (InvalidationStrategy::RefreshRequested, None)
3554 }
3555 };
3556
3557 if let Some(InlaySplice {
3558 to_remove,
3559 to_insert,
3560 }) = self.inlay_hint_cache.spawn_hint_refresh(
3561 reason_description,
3562 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3563 invalidate_cache,
3564 ignore_debounce,
3565 cx,
3566 ) {
3567 self.splice_inlays(to_remove, to_insert, cx);
3568 }
3569 }
3570
3571 fn visible_inlay_hints(&self, cx: &ViewContext<Editor>) -> Vec<Inlay> {
3572 self.display_map
3573 .read(cx)
3574 .current_inlays()
3575 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3576 .cloned()
3577 .collect()
3578 }
3579
3580 pub fn excerpts_for_inlay_hints_query(
3581 &self,
3582 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3583 cx: &mut ViewContext<Editor>,
3584 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3585 let Some(project) = self.project.as_ref() else {
3586 return HashMap::default();
3587 };
3588 let project = project.read(cx);
3589 let multi_buffer = self.buffer().read(cx);
3590 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3591 let multi_buffer_visible_start = self
3592 .scroll_manager
3593 .anchor()
3594 .anchor
3595 .to_point(&multi_buffer_snapshot);
3596 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3597 multi_buffer_visible_start
3598 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3599 Bias::Left,
3600 );
3601 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3602 multi_buffer_snapshot
3603 .range_to_buffer_ranges(multi_buffer_visible_range)
3604 .into_iter()
3605 .filter(|(_, excerpt_visible_range)| !excerpt_visible_range.is_empty())
3606 .filter_map(|(excerpt, excerpt_visible_range)| {
3607 let buffer_file = project::File::from_dyn(excerpt.buffer().file())?;
3608 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3609 let worktree_entry = buffer_worktree
3610 .read(cx)
3611 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3612 if worktree_entry.is_ignored {
3613 return None;
3614 }
3615
3616 let language = excerpt.buffer().language()?;
3617 if let Some(restrict_to_languages) = restrict_to_languages {
3618 if !restrict_to_languages.contains(language) {
3619 return None;
3620 }
3621 }
3622 Some((
3623 excerpt.id(),
3624 (
3625 multi_buffer.buffer(excerpt.buffer_id()).unwrap(),
3626 excerpt.buffer().version().clone(),
3627 excerpt_visible_range,
3628 ),
3629 ))
3630 })
3631 .collect()
3632 }
3633
3634 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3635 TextLayoutDetails {
3636 text_system: cx.text_system().clone(),
3637 editor_style: self.style.clone().unwrap(),
3638 rem_size: cx.rem_size(),
3639 scroll_anchor: self.scroll_manager.anchor(),
3640 visible_rows: self.visible_line_count(),
3641 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3642 }
3643 }
3644
3645 pub fn splice_inlays(
3646 &self,
3647 to_remove: Vec<InlayId>,
3648 to_insert: Vec<Inlay>,
3649 cx: &mut ViewContext<Self>,
3650 ) {
3651 self.display_map.update(cx, |display_map, cx| {
3652 display_map.splice_inlays(to_remove, to_insert, cx)
3653 });
3654 cx.notify();
3655 }
3656
3657 fn trigger_on_type_formatting(
3658 &self,
3659 input: String,
3660 cx: &mut ViewContext<Self>,
3661 ) -> Option<Task<Result<()>>> {
3662 if input.len() != 1 {
3663 return None;
3664 }
3665
3666 let project = self.project.as_ref()?;
3667 let position = self.selections.newest_anchor().head();
3668 let (buffer, buffer_position) = self
3669 .buffer
3670 .read(cx)
3671 .text_anchor_for_position(position, cx)?;
3672
3673 let settings = language_settings::language_settings(
3674 buffer
3675 .read(cx)
3676 .language_at(buffer_position)
3677 .map(|l| l.name()),
3678 buffer.read(cx).file(),
3679 cx,
3680 );
3681 if !settings.use_on_type_format {
3682 return None;
3683 }
3684
3685 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3686 // hence we do LSP request & edit on host side only — add formats to host's history.
3687 let push_to_lsp_host_history = true;
3688 // If this is not the host, append its history with new edits.
3689 let push_to_client_history = project.read(cx).is_via_collab();
3690
3691 let on_type_formatting = project.update(cx, |project, cx| {
3692 project.on_type_format(
3693 buffer.clone(),
3694 buffer_position,
3695 input,
3696 push_to_lsp_host_history,
3697 cx,
3698 )
3699 });
3700 Some(cx.spawn(|editor, mut cx| async move {
3701 if let Some(transaction) = on_type_formatting.await? {
3702 if push_to_client_history {
3703 buffer
3704 .update(&mut cx, |buffer, _| {
3705 buffer.push_transaction(transaction, Instant::now());
3706 })
3707 .ok();
3708 }
3709 editor.update(&mut cx, |editor, cx| {
3710 editor.refresh_document_highlights(cx);
3711 })?;
3712 }
3713 Ok(())
3714 }))
3715 }
3716
3717 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3718 if self.pending_rename.is_some() {
3719 return;
3720 }
3721
3722 let Some(provider) = self.completion_provider.as_ref() else {
3723 return;
3724 };
3725
3726 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3727 return;
3728 }
3729
3730 let position = self.selections.newest_anchor().head();
3731 let (buffer, buffer_position) =
3732 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3733 output
3734 } else {
3735 return;
3736 };
3737 let show_completion_documentation = buffer
3738 .read(cx)
3739 .snapshot()
3740 .settings_at(buffer_position, cx)
3741 .show_completion_documentation;
3742
3743 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3744
3745 let trigger_kind = match &options.trigger {
3746 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3747 CompletionTriggerKind::TRIGGER_CHARACTER
3748 }
3749 _ => CompletionTriggerKind::INVOKED,
3750 };
3751 let completion_context = CompletionContext {
3752 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3753 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3754 Some(String::from(trigger))
3755 } else {
3756 None
3757 }
3758 }),
3759 trigger_kind,
3760 };
3761 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3762 let sort_completions = provider.sort_completions();
3763
3764 let id = post_inc(&mut self.next_completion_id);
3765 let task = cx.spawn(|editor, mut cx| {
3766 async move {
3767 editor.update(&mut cx, |this, _| {
3768 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3769 })?;
3770 let completions = completions.await.log_err();
3771 let menu = if let Some(completions) = completions {
3772 let mut menu = CompletionsMenu::new(
3773 id,
3774 sort_completions,
3775 show_completion_documentation,
3776 position,
3777 buffer.clone(),
3778 completions.into(),
3779 );
3780
3781 menu.filter(query.as_deref(), cx.background_executor().clone())
3782 .await;
3783
3784 menu.visible().then_some(menu)
3785 } else {
3786 None
3787 };
3788
3789 editor.update(&mut cx, |editor, cx| {
3790 match editor.context_menu.borrow().as_ref() {
3791 None => {}
3792 Some(CodeContextMenu::Completions(prev_menu)) => {
3793 if prev_menu.id > id {
3794 return;
3795 }
3796 }
3797 _ => return,
3798 }
3799
3800 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3801 let mut menu = menu.unwrap();
3802 menu.resolve_visible_completions(editor.completion_provider.as_deref(), cx);
3803
3804 if editor.show_inline_completions_in_menu(cx) {
3805 if let Some(hint) = editor.inline_completion_menu_hint(cx) {
3806 menu.show_inline_completion_hint(hint);
3807 }
3808 } else {
3809 editor.discard_inline_completion(false, cx);
3810 }
3811
3812 *editor.context_menu.borrow_mut() =
3813 Some(CodeContextMenu::Completions(menu));
3814
3815 cx.notify();
3816 } else if editor.completion_tasks.len() <= 1 {
3817 // If there are no more completion tasks and the last menu was
3818 // empty, we should hide it.
3819 let was_hidden = editor.hide_context_menu(cx).is_none();
3820 // If it was already hidden and we don't show inline
3821 // completions in the menu, we should also show the
3822 // inline-completion when available.
3823 if was_hidden && editor.show_inline_completions_in_menu(cx) {
3824 editor.update_visible_inline_completion(cx);
3825 }
3826 }
3827 })?;
3828
3829 Ok::<_, anyhow::Error>(())
3830 }
3831 .log_err()
3832 });
3833
3834 self.completion_tasks.push((id, task));
3835 }
3836
3837 pub fn confirm_completion(
3838 &mut self,
3839 action: &ConfirmCompletion,
3840 cx: &mut ViewContext<Self>,
3841 ) -> Option<Task<Result<()>>> {
3842 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3843 }
3844
3845 pub fn compose_completion(
3846 &mut self,
3847 action: &ComposeCompletion,
3848 cx: &mut ViewContext<Self>,
3849 ) -> Option<Task<Result<()>>> {
3850 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3851 }
3852
3853 fn toggle_zed_predict_tos(&mut self, cx: &mut ViewContext<Self>) {
3854 let (Some(workspace), Some(project)) = (self.workspace(), self.project.as_ref()) else {
3855 return;
3856 };
3857
3858 ZedPredictTos::toggle(workspace, project.read(cx).user_store().clone(), cx);
3859 }
3860
3861 fn do_completion(
3862 &mut self,
3863 item_ix: Option<usize>,
3864 intent: CompletionIntent,
3865 cx: &mut ViewContext<Editor>,
3866 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3867 use language::ToOffset as _;
3868
3869 {
3870 let context_menu = self.context_menu.borrow();
3871 if let CodeContextMenu::Completions(menu) = context_menu.as_ref()? {
3872 let entries = menu.entries.borrow();
3873 let entry = entries.get(item_ix.unwrap_or(menu.selected_item));
3874 match entry {
3875 Some(CompletionEntry::InlineCompletionHint(
3876 InlineCompletionMenuHint::Loading,
3877 )) => return Some(Task::ready(Ok(()))),
3878 Some(CompletionEntry::InlineCompletionHint(InlineCompletionMenuHint::None)) => {
3879 drop(entries);
3880 drop(context_menu);
3881 self.context_menu_next(&Default::default(), cx);
3882 return Some(Task::ready(Ok(())));
3883 }
3884 Some(CompletionEntry::InlineCompletionHint(
3885 InlineCompletionMenuHint::PendingTermsAcceptance,
3886 )) => {
3887 drop(entries);
3888 drop(context_menu);
3889 self.toggle_zed_predict_tos(cx);
3890 return Some(Task::ready(Ok(())));
3891 }
3892 _ => {}
3893 }
3894 }
3895 }
3896
3897 let completions_menu =
3898 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3899 menu
3900 } else {
3901 return None;
3902 };
3903
3904 let entries = completions_menu.entries.borrow();
3905 let mat = entries.get(item_ix.unwrap_or(completions_menu.selected_item))?;
3906 let mat = match mat {
3907 CompletionEntry::InlineCompletionHint(_) => {
3908 self.accept_inline_completion(&AcceptInlineCompletion, cx);
3909 cx.stop_propagation();
3910 return Some(Task::ready(Ok(())));
3911 }
3912 CompletionEntry::Match(mat) => {
3913 if self.show_inline_completions_in_menu(cx) {
3914 self.discard_inline_completion(true, cx);
3915 }
3916 mat
3917 }
3918 };
3919 let candidate_id = mat.candidate_id;
3920 drop(entries);
3921
3922 let buffer_handle = completions_menu.buffer;
3923 let completion = completions_menu
3924 .completions
3925 .borrow()
3926 .get(candidate_id)?
3927 .clone();
3928 cx.stop_propagation();
3929
3930 let snippet;
3931 let text;
3932
3933 if completion.is_snippet() {
3934 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3935 text = snippet.as_ref().unwrap().text.clone();
3936 } else {
3937 snippet = None;
3938 text = completion.new_text.clone();
3939 };
3940 let selections = self.selections.all::<usize>(cx);
3941 let buffer = buffer_handle.read(cx);
3942 let old_range = completion.old_range.to_offset(buffer);
3943 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3944
3945 let newest_selection = self.selections.newest_anchor();
3946 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3947 return None;
3948 }
3949
3950 let lookbehind = newest_selection
3951 .start
3952 .text_anchor
3953 .to_offset(buffer)
3954 .saturating_sub(old_range.start);
3955 let lookahead = old_range
3956 .end
3957 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3958 let mut common_prefix_len = old_text
3959 .bytes()
3960 .zip(text.bytes())
3961 .take_while(|(a, b)| a == b)
3962 .count();
3963
3964 let snapshot = self.buffer.read(cx).snapshot(cx);
3965 let mut range_to_replace: Option<Range<isize>> = None;
3966 let mut ranges = Vec::new();
3967 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3968 for selection in &selections {
3969 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3970 let start = selection.start.saturating_sub(lookbehind);
3971 let end = selection.end + lookahead;
3972 if selection.id == newest_selection.id {
3973 range_to_replace = Some(
3974 ((start + common_prefix_len) as isize - selection.start as isize)
3975 ..(end as isize - selection.start as isize),
3976 );
3977 }
3978 ranges.push(start + common_prefix_len..end);
3979 } else {
3980 common_prefix_len = 0;
3981 ranges.clear();
3982 ranges.extend(selections.iter().map(|s| {
3983 if s.id == newest_selection.id {
3984 range_to_replace = Some(
3985 old_range.start.to_offset_utf16(&snapshot).0 as isize
3986 - selection.start as isize
3987 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3988 - selection.start as isize,
3989 );
3990 old_range.clone()
3991 } else {
3992 s.start..s.end
3993 }
3994 }));
3995 break;
3996 }
3997 if !self.linked_edit_ranges.is_empty() {
3998 let start_anchor = snapshot.anchor_before(selection.head());
3999 let end_anchor = snapshot.anchor_after(selection.tail());
4000 if let Some(ranges) = self
4001 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4002 {
4003 for (buffer, edits) in ranges {
4004 linked_edits.entry(buffer.clone()).or_default().extend(
4005 edits
4006 .into_iter()
4007 .map(|range| (range, text[common_prefix_len..].to_owned())),
4008 );
4009 }
4010 }
4011 }
4012 }
4013 let text = &text[common_prefix_len..];
4014
4015 cx.emit(EditorEvent::InputHandled {
4016 utf16_range_to_replace: range_to_replace,
4017 text: text.into(),
4018 });
4019
4020 self.transact(cx, |this, cx| {
4021 if let Some(mut snippet) = snippet {
4022 snippet.text = text.to_string();
4023 for tabstop in snippet
4024 .tabstops
4025 .iter_mut()
4026 .flat_map(|tabstop| tabstop.ranges.iter_mut())
4027 {
4028 tabstop.start -= common_prefix_len as isize;
4029 tabstop.end -= common_prefix_len as isize;
4030 }
4031
4032 this.insert_snippet(&ranges, snippet, cx).log_err();
4033 } else {
4034 this.buffer.update(cx, |buffer, cx| {
4035 buffer.edit(
4036 ranges.iter().map(|range| (range.clone(), text)),
4037 this.autoindent_mode.clone(),
4038 cx,
4039 );
4040 });
4041 }
4042 for (buffer, edits) in linked_edits {
4043 buffer.update(cx, |buffer, cx| {
4044 let snapshot = buffer.snapshot();
4045 let edits = edits
4046 .into_iter()
4047 .map(|(range, text)| {
4048 use text::ToPoint as TP;
4049 let end_point = TP::to_point(&range.end, &snapshot);
4050 let start_point = TP::to_point(&range.start, &snapshot);
4051 (start_point..end_point, text)
4052 })
4053 .sorted_by_key(|(range, _)| range.start)
4054 .collect::<Vec<_>>();
4055 buffer.edit(edits, None, cx);
4056 })
4057 }
4058
4059 this.refresh_inline_completion(true, false, cx);
4060 });
4061
4062 let show_new_completions_on_confirm = completion
4063 .confirm
4064 .as_ref()
4065 .map_or(false, |confirm| confirm(intent, cx));
4066 if show_new_completions_on_confirm {
4067 self.show_completions(&ShowCompletions { trigger: None }, cx);
4068 }
4069
4070 let provider = self.completion_provider.as_ref()?;
4071 drop(completion);
4072 let apply_edits = provider.apply_additional_edits_for_completion(
4073 buffer_handle,
4074 completions_menu.completions.clone(),
4075 candidate_id,
4076 true,
4077 cx,
4078 );
4079
4080 let editor_settings = EditorSettings::get_global(cx);
4081 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4082 // After the code completion is finished, users often want to know what signatures are needed.
4083 // so we should automatically call signature_help
4084 self.show_signature_help(&ShowSignatureHelp, cx);
4085 }
4086
4087 Some(cx.foreground_executor().spawn(async move {
4088 apply_edits.await?;
4089 Ok(())
4090 }))
4091 }
4092
4093 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4094 let mut context_menu = self.context_menu.borrow_mut();
4095 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4096 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4097 // Toggle if we're selecting the same one
4098 *context_menu = None;
4099 cx.notify();
4100 return;
4101 } else {
4102 // Otherwise, clear it and start a new one
4103 *context_menu = None;
4104 cx.notify();
4105 }
4106 }
4107 drop(context_menu);
4108 let snapshot = self.snapshot(cx);
4109 let deployed_from_indicator = action.deployed_from_indicator;
4110 let mut task = self.code_actions_task.take();
4111 let action = action.clone();
4112 cx.spawn(|editor, mut cx| async move {
4113 while let Some(prev_task) = task {
4114 prev_task.await.log_err();
4115 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4116 }
4117
4118 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4119 if editor.focus_handle.is_focused(cx) {
4120 let multibuffer_point = action
4121 .deployed_from_indicator
4122 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4123 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4124 let (buffer, buffer_row) = snapshot
4125 .buffer_snapshot
4126 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4127 .and_then(|(buffer_snapshot, range)| {
4128 editor
4129 .buffer
4130 .read(cx)
4131 .buffer(buffer_snapshot.remote_id())
4132 .map(|buffer| (buffer, range.start.row))
4133 })?;
4134 let (_, code_actions) = editor
4135 .available_code_actions
4136 .clone()
4137 .and_then(|(location, code_actions)| {
4138 let snapshot = location.buffer.read(cx).snapshot();
4139 let point_range = location.range.to_point(&snapshot);
4140 let point_range = point_range.start.row..=point_range.end.row;
4141 if point_range.contains(&buffer_row) {
4142 Some((location, code_actions))
4143 } else {
4144 None
4145 }
4146 })
4147 .unzip();
4148 let buffer_id = buffer.read(cx).remote_id();
4149 let tasks = editor
4150 .tasks
4151 .get(&(buffer_id, buffer_row))
4152 .map(|t| Arc::new(t.to_owned()));
4153 if tasks.is_none() && code_actions.is_none() {
4154 return None;
4155 }
4156
4157 editor.completion_tasks.clear();
4158 editor.discard_inline_completion(false, cx);
4159 let task_context =
4160 tasks
4161 .as_ref()
4162 .zip(editor.project.clone())
4163 .map(|(tasks, project)| {
4164 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4165 });
4166
4167 Some(cx.spawn(|editor, mut cx| async move {
4168 let task_context = match task_context {
4169 Some(task_context) => task_context.await,
4170 None => None,
4171 };
4172 let resolved_tasks =
4173 tasks.zip(task_context).map(|(tasks, task_context)| {
4174 Rc::new(ResolvedTasks {
4175 templates: tasks.resolve(&task_context).collect(),
4176 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4177 multibuffer_point.row,
4178 tasks.column,
4179 )),
4180 })
4181 });
4182 let spawn_straight_away = resolved_tasks
4183 .as_ref()
4184 .map_or(false, |tasks| tasks.templates.len() == 1)
4185 && code_actions
4186 .as_ref()
4187 .map_or(true, |actions| actions.is_empty());
4188 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4189 *editor.context_menu.borrow_mut() =
4190 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4191 buffer,
4192 actions: CodeActionContents {
4193 tasks: resolved_tasks,
4194 actions: code_actions,
4195 },
4196 selected_item: Default::default(),
4197 scroll_handle: UniformListScrollHandle::default(),
4198 deployed_from_indicator,
4199 }));
4200 if spawn_straight_away {
4201 if let Some(task) = editor.confirm_code_action(
4202 &ConfirmCodeAction { item_ix: Some(0) },
4203 cx,
4204 ) {
4205 cx.notify();
4206 return task;
4207 }
4208 }
4209 cx.notify();
4210 Task::ready(Ok(()))
4211 }) {
4212 task.await
4213 } else {
4214 Ok(())
4215 }
4216 }))
4217 } else {
4218 Some(Task::ready(Ok(())))
4219 }
4220 })?;
4221 if let Some(task) = spawned_test_task {
4222 task.await?;
4223 }
4224
4225 Ok::<_, anyhow::Error>(())
4226 })
4227 .detach_and_log_err(cx);
4228 }
4229
4230 pub fn confirm_code_action(
4231 &mut self,
4232 action: &ConfirmCodeAction,
4233 cx: &mut ViewContext<Self>,
4234 ) -> Option<Task<Result<()>>> {
4235 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4236 menu
4237 } else {
4238 return None;
4239 };
4240 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4241 let action = actions_menu.actions.get(action_ix)?;
4242 let title = action.label();
4243 let buffer = actions_menu.buffer;
4244 let workspace = self.workspace()?;
4245
4246 match action {
4247 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4248 workspace.update(cx, |workspace, cx| {
4249 workspace::tasks::schedule_resolved_task(
4250 workspace,
4251 task_source_kind,
4252 resolved_task,
4253 false,
4254 cx,
4255 );
4256
4257 Some(Task::ready(Ok(())))
4258 })
4259 }
4260 CodeActionsItem::CodeAction {
4261 excerpt_id,
4262 action,
4263 provider,
4264 } => {
4265 let apply_code_action =
4266 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4267 let workspace = workspace.downgrade();
4268 Some(cx.spawn(|editor, cx| async move {
4269 let project_transaction = apply_code_action.await?;
4270 Self::open_project_transaction(
4271 &editor,
4272 workspace,
4273 project_transaction,
4274 title,
4275 cx,
4276 )
4277 .await
4278 }))
4279 }
4280 }
4281 }
4282
4283 pub async fn open_project_transaction(
4284 this: &WeakView<Editor>,
4285 workspace: WeakView<Workspace>,
4286 transaction: ProjectTransaction,
4287 title: String,
4288 mut cx: AsyncWindowContext,
4289 ) -> Result<()> {
4290 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4291 cx.update(|cx| {
4292 entries.sort_unstable_by_key(|(buffer, _)| {
4293 buffer.read(cx).file().map(|f| f.path().clone())
4294 });
4295 })?;
4296
4297 // If the project transaction's edits are all contained within this editor, then
4298 // avoid opening a new editor to display them.
4299
4300 if let Some((buffer, transaction)) = entries.first() {
4301 if entries.len() == 1 {
4302 let excerpt = this.update(&mut cx, |editor, cx| {
4303 editor
4304 .buffer()
4305 .read(cx)
4306 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4307 })?;
4308 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4309 if excerpted_buffer == *buffer {
4310 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4311 let excerpt_range = excerpt_range.to_offset(buffer);
4312 buffer
4313 .edited_ranges_for_transaction::<usize>(transaction)
4314 .all(|range| {
4315 excerpt_range.start <= range.start
4316 && excerpt_range.end >= range.end
4317 })
4318 })?;
4319
4320 if all_edits_within_excerpt {
4321 return Ok(());
4322 }
4323 }
4324 }
4325 }
4326 } else {
4327 return Ok(());
4328 }
4329
4330 let mut ranges_to_highlight = Vec::new();
4331 let excerpt_buffer = cx.new_model(|cx| {
4332 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4333 for (buffer_handle, transaction) in &entries {
4334 let buffer = buffer_handle.read(cx);
4335 ranges_to_highlight.extend(
4336 multibuffer.push_excerpts_with_context_lines(
4337 buffer_handle.clone(),
4338 buffer
4339 .edited_ranges_for_transaction::<usize>(transaction)
4340 .collect(),
4341 DEFAULT_MULTIBUFFER_CONTEXT,
4342 cx,
4343 ),
4344 );
4345 }
4346 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4347 multibuffer
4348 })?;
4349
4350 workspace.update(&mut cx, |workspace, cx| {
4351 let project = workspace.project().clone();
4352 let editor =
4353 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4354 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4355 editor.update(cx, |editor, cx| {
4356 editor.highlight_background::<Self>(
4357 &ranges_to_highlight,
4358 |theme| theme.editor_highlighted_line_background,
4359 cx,
4360 );
4361 });
4362 })?;
4363
4364 Ok(())
4365 }
4366
4367 pub fn clear_code_action_providers(&mut self) {
4368 self.code_action_providers.clear();
4369 self.available_code_actions.take();
4370 }
4371
4372 pub fn add_code_action_provider(
4373 &mut self,
4374 provider: Rc<dyn CodeActionProvider>,
4375 cx: &mut ViewContext<Self>,
4376 ) {
4377 if self
4378 .code_action_providers
4379 .iter()
4380 .any(|existing_provider| existing_provider.id() == provider.id())
4381 {
4382 return;
4383 }
4384
4385 self.code_action_providers.push(provider);
4386 self.refresh_code_actions(cx);
4387 }
4388
4389 pub fn remove_code_action_provider(&mut self, id: Arc<str>, cx: &mut ViewContext<Self>) {
4390 self.code_action_providers
4391 .retain(|provider| provider.id() != id);
4392 self.refresh_code_actions(cx);
4393 }
4394
4395 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4396 let buffer = self.buffer.read(cx);
4397 let newest_selection = self.selections.newest_anchor().clone();
4398 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4399 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4400 if start_buffer != end_buffer {
4401 return None;
4402 }
4403
4404 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4405 cx.background_executor()
4406 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4407 .await;
4408
4409 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4410 let providers = this.code_action_providers.clone();
4411 let tasks = this
4412 .code_action_providers
4413 .iter()
4414 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4415 .collect::<Vec<_>>();
4416 (providers, tasks)
4417 })?;
4418
4419 let mut actions = Vec::new();
4420 for (provider, provider_actions) in
4421 providers.into_iter().zip(future::join_all(tasks).await)
4422 {
4423 if let Some(provider_actions) = provider_actions.log_err() {
4424 actions.extend(provider_actions.into_iter().map(|action| {
4425 AvailableCodeAction {
4426 excerpt_id: newest_selection.start.excerpt_id,
4427 action,
4428 provider: provider.clone(),
4429 }
4430 }));
4431 }
4432 }
4433
4434 this.update(&mut cx, |this, cx| {
4435 this.available_code_actions = if actions.is_empty() {
4436 None
4437 } else {
4438 Some((
4439 Location {
4440 buffer: start_buffer,
4441 range: start..end,
4442 },
4443 actions.into(),
4444 ))
4445 };
4446 cx.notify();
4447 })
4448 }));
4449 None
4450 }
4451
4452 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4453 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4454 self.show_git_blame_inline = false;
4455
4456 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4457 cx.background_executor().timer(delay).await;
4458
4459 this.update(&mut cx, |this, cx| {
4460 this.show_git_blame_inline = true;
4461 cx.notify();
4462 })
4463 .log_err();
4464 }));
4465 }
4466 }
4467
4468 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4469 if self.pending_rename.is_some() {
4470 return None;
4471 }
4472
4473 let provider = self.semantics_provider.clone()?;
4474 let buffer = self.buffer.read(cx);
4475 let newest_selection = self.selections.newest_anchor().clone();
4476 let cursor_position = newest_selection.head();
4477 let (cursor_buffer, cursor_buffer_position) =
4478 buffer.text_anchor_for_position(cursor_position, cx)?;
4479 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4480 if cursor_buffer != tail_buffer {
4481 return None;
4482 }
4483 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4484 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4485 cx.background_executor()
4486 .timer(Duration::from_millis(debounce))
4487 .await;
4488
4489 let highlights = if let Some(highlights) = cx
4490 .update(|cx| {
4491 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4492 })
4493 .ok()
4494 .flatten()
4495 {
4496 highlights.await.log_err()
4497 } else {
4498 None
4499 };
4500
4501 if let Some(highlights) = highlights {
4502 this.update(&mut cx, |this, cx| {
4503 if this.pending_rename.is_some() {
4504 return;
4505 }
4506
4507 let buffer_id = cursor_position.buffer_id;
4508 let buffer = this.buffer.read(cx);
4509 if !buffer
4510 .text_anchor_for_position(cursor_position, cx)
4511 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4512 {
4513 return;
4514 }
4515
4516 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4517 let mut write_ranges = Vec::new();
4518 let mut read_ranges = Vec::new();
4519 for highlight in highlights {
4520 for (excerpt_id, excerpt_range) in
4521 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4522 {
4523 let start = highlight
4524 .range
4525 .start
4526 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4527 let end = highlight
4528 .range
4529 .end
4530 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4531 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4532 continue;
4533 }
4534
4535 let range = Anchor {
4536 buffer_id,
4537 excerpt_id,
4538 text_anchor: start,
4539 }..Anchor {
4540 buffer_id,
4541 excerpt_id,
4542 text_anchor: end,
4543 };
4544 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4545 write_ranges.push(range);
4546 } else {
4547 read_ranges.push(range);
4548 }
4549 }
4550 }
4551
4552 this.highlight_background::<DocumentHighlightRead>(
4553 &read_ranges,
4554 |theme| theme.editor_document_highlight_read_background,
4555 cx,
4556 );
4557 this.highlight_background::<DocumentHighlightWrite>(
4558 &write_ranges,
4559 |theme| theme.editor_document_highlight_write_background,
4560 cx,
4561 );
4562 cx.notify();
4563 })
4564 .log_err();
4565 }
4566 }));
4567 None
4568 }
4569
4570 pub fn refresh_inline_completion(
4571 &mut self,
4572 debounce: bool,
4573 user_requested: bool,
4574 cx: &mut ViewContext<Self>,
4575 ) -> Option<()> {
4576 let provider = self.inline_completion_provider()?;
4577 let cursor = self.selections.newest_anchor().head();
4578 let (buffer, cursor_buffer_position) =
4579 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4580
4581 if !user_requested
4582 && (!self.enable_inline_completions
4583 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4584 || !self.is_focused(cx)
4585 || buffer.read(cx).is_empty())
4586 {
4587 self.discard_inline_completion(false, cx);
4588 return None;
4589 }
4590
4591 self.update_visible_inline_completion(cx);
4592 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4593 Some(())
4594 }
4595
4596 fn cycle_inline_completion(
4597 &mut self,
4598 direction: Direction,
4599 cx: &mut ViewContext<Self>,
4600 ) -> Option<()> {
4601 let provider = self.inline_completion_provider()?;
4602 let cursor = self.selections.newest_anchor().head();
4603 let (buffer, cursor_buffer_position) =
4604 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4605 if !self.enable_inline_completions
4606 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4607 {
4608 return None;
4609 }
4610
4611 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4612 self.update_visible_inline_completion(cx);
4613
4614 Some(())
4615 }
4616
4617 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4618 if !self.has_active_inline_completion() {
4619 self.refresh_inline_completion(false, true, cx);
4620 return;
4621 }
4622
4623 self.update_visible_inline_completion(cx);
4624 }
4625
4626 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4627 self.show_cursor_names(cx);
4628 }
4629
4630 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4631 self.show_cursor_names = true;
4632 cx.notify();
4633 cx.spawn(|this, mut cx| async move {
4634 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4635 this.update(&mut cx, |this, cx| {
4636 this.show_cursor_names = false;
4637 cx.notify()
4638 })
4639 .ok()
4640 })
4641 .detach();
4642 }
4643
4644 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4645 if self.has_active_inline_completion() {
4646 self.cycle_inline_completion(Direction::Next, cx);
4647 } else {
4648 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4649 if is_copilot_disabled {
4650 cx.propagate();
4651 }
4652 }
4653 }
4654
4655 pub fn previous_inline_completion(
4656 &mut self,
4657 _: &PreviousInlineCompletion,
4658 cx: &mut ViewContext<Self>,
4659 ) {
4660 if self.has_active_inline_completion() {
4661 self.cycle_inline_completion(Direction::Prev, cx);
4662 } else {
4663 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4664 if is_copilot_disabled {
4665 cx.propagate();
4666 }
4667 }
4668 }
4669
4670 pub fn accept_inline_completion(
4671 &mut self,
4672 _: &AcceptInlineCompletion,
4673 cx: &mut ViewContext<Self>,
4674 ) {
4675 let buffer = self.buffer.read(cx);
4676 let snapshot = buffer.snapshot(cx);
4677 let selection = self.selections.newest_adjusted(cx);
4678 let cursor = selection.head();
4679 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
4680 let suggested_indents = snapshot.suggested_indents([cursor.row], cx);
4681 if let Some(suggested_indent) = suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
4682 {
4683 if cursor.column < suggested_indent.len
4684 && cursor.column <= current_indent.len
4685 && current_indent.len <= suggested_indent.len
4686 {
4687 self.tab(&Default::default(), cx);
4688 return;
4689 }
4690 }
4691
4692 if self.show_inline_completions_in_menu(cx) {
4693 self.hide_context_menu(cx);
4694 }
4695
4696 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4697 return;
4698 };
4699
4700 self.report_inline_completion_event(true, cx);
4701
4702 match &active_inline_completion.completion {
4703 InlineCompletion::Move(position) => {
4704 let position = *position;
4705 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4706 selections.select_anchor_ranges([position..position]);
4707 });
4708 }
4709 InlineCompletion::Edit { edits, .. } => {
4710 if let Some(provider) = self.inline_completion_provider() {
4711 provider.accept(cx);
4712 }
4713
4714 let snapshot = self.buffer.read(cx).snapshot(cx);
4715 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4716
4717 self.buffer.update(cx, |buffer, cx| {
4718 buffer.edit(edits.iter().cloned(), None, cx)
4719 });
4720
4721 self.change_selections(None, cx, |s| {
4722 s.select_anchor_ranges([last_edit_end..last_edit_end])
4723 });
4724
4725 self.update_visible_inline_completion(cx);
4726 if self.active_inline_completion.is_none() {
4727 self.refresh_inline_completion(true, true, cx);
4728 }
4729
4730 cx.notify();
4731 }
4732 }
4733 }
4734
4735 pub fn accept_partial_inline_completion(
4736 &mut self,
4737 _: &AcceptPartialInlineCompletion,
4738 cx: &mut ViewContext<Self>,
4739 ) {
4740 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4741 return;
4742 };
4743 if self.selections.count() != 1 {
4744 return;
4745 }
4746
4747 self.report_inline_completion_event(true, cx);
4748
4749 match &active_inline_completion.completion {
4750 InlineCompletion::Move(position) => {
4751 let position = *position;
4752 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4753 selections.select_anchor_ranges([position..position]);
4754 });
4755 }
4756 InlineCompletion::Edit { edits, .. } => {
4757 // Find an insertion that starts at the cursor position.
4758 let snapshot = self.buffer.read(cx).snapshot(cx);
4759 let cursor_offset = self.selections.newest::<usize>(cx).head();
4760 let insertion = edits.iter().find_map(|(range, text)| {
4761 let range = range.to_offset(&snapshot);
4762 if range.is_empty() && range.start == cursor_offset {
4763 Some(text)
4764 } else {
4765 None
4766 }
4767 });
4768
4769 if let Some(text) = insertion {
4770 let mut partial_completion = text
4771 .chars()
4772 .by_ref()
4773 .take_while(|c| c.is_alphabetic())
4774 .collect::<String>();
4775 if partial_completion.is_empty() {
4776 partial_completion = text
4777 .chars()
4778 .by_ref()
4779 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4780 .collect::<String>();
4781 }
4782
4783 cx.emit(EditorEvent::InputHandled {
4784 utf16_range_to_replace: None,
4785 text: partial_completion.clone().into(),
4786 });
4787
4788 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4789
4790 self.refresh_inline_completion(true, true, cx);
4791 cx.notify();
4792 } else {
4793 self.accept_inline_completion(&Default::default(), cx);
4794 }
4795 }
4796 }
4797 }
4798
4799 fn discard_inline_completion(
4800 &mut self,
4801 should_report_inline_completion_event: bool,
4802 cx: &mut ViewContext<Self>,
4803 ) -> bool {
4804 if should_report_inline_completion_event {
4805 self.report_inline_completion_event(false, cx);
4806 }
4807
4808 if let Some(provider) = self.inline_completion_provider() {
4809 provider.discard(cx);
4810 }
4811
4812 self.take_active_inline_completion(cx).is_some()
4813 }
4814
4815 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4816 let Some(provider) = self.inline_completion_provider() else {
4817 return;
4818 };
4819
4820 let Some((_, buffer, _)) = self
4821 .buffer
4822 .read(cx)
4823 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4824 else {
4825 return;
4826 };
4827
4828 let extension = buffer
4829 .read(cx)
4830 .file()
4831 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4832
4833 let event_type = match accepted {
4834 true => "Inline Completion Accepted",
4835 false => "Inline Completion Discarded",
4836 };
4837 telemetry::event!(
4838 event_type,
4839 provider = provider.name(),
4840 suggestion_accepted = accepted,
4841 file_extension = extension,
4842 );
4843 }
4844
4845 pub fn has_active_inline_completion(&self) -> bool {
4846 self.active_inline_completion.is_some()
4847 }
4848
4849 fn take_active_inline_completion(
4850 &mut self,
4851 cx: &mut ViewContext<Self>,
4852 ) -> Option<InlineCompletion> {
4853 let active_inline_completion = self.active_inline_completion.take()?;
4854 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4855 self.clear_highlights::<InlineCompletionHighlight>(cx);
4856 Some(active_inline_completion.completion)
4857 }
4858
4859 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4860 let selection = self.selections.newest_anchor();
4861 let cursor = selection.head();
4862 let multibuffer = self.buffer.read(cx).snapshot(cx);
4863 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4864 let excerpt_id = cursor.excerpt_id;
4865
4866 let completions_menu_has_precedence = !self.show_inline_completions_in_menu(cx)
4867 && (self.context_menu.borrow().is_some()
4868 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion()));
4869 if completions_menu_has_precedence
4870 || !offset_selection.is_empty()
4871 || !self.enable_inline_completions
4872 || self
4873 .active_inline_completion
4874 .as_ref()
4875 .map_or(false, |completion| {
4876 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4877 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4878 !invalidation_range.contains(&offset_selection.head())
4879 })
4880 {
4881 self.discard_inline_completion(false, cx);
4882 return None;
4883 }
4884
4885 self.take_active_inline_completion(cx);
4886 let provider = self.inline_completion_provider()?;
4887
4888 let (buffer, cursor_buffer_position) =
4889 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4890
4891 let inline_completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4892 let edits = inline_completion
4893 .edits
4894 .into_iter()
4895 .flat_map(|(range, new_text)| {
4896 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
4897 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
4898 Some((start..end, new_text))
4899 })
4900 .collect::<Vec<_>>();
4901 if edits.is_empty() {
4902 return None;
4903 }
4904
4905 let first_edit_start = edits.first().unwrap().0.start;
4906 let first_edit_start_point = first_edit_start.to_point(&multibuffer);
4907 let edit_start_row = first_edit_start_point.row.saturating_sub(2);
4908
4909 let last_edit_end = edits.last().unwrap().0.end;
4910 let last_edit_end_point = last_edit_end.to_point(&multibuffer);
4911 let edit_end_row = cmp::min(multibuffer.max_point().row, last_edit_end_point.row + 2);
4912
4913 let cursor_row = cursor.to_point(&multibuffer).row;
4914
4915 let mut inlay_ids = Vec::new();
4916 let invalidation_row_range;
4917 let completion = if cursor_row < edit_start_row {
4918 invalidation_row_range = cursor_row..edit_end_row;
4919 InlineCompletion::Move(first_edit_start)
4920 } else if cursor_row > edit_end_row {
4921 invalidation_row_range = edit_start_row..cursor_row;
4922 InlineCompletion::Move(first_edit_start)
4923 } else {
4924 if edits
4925 .iter()
4926 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4927 {
4928 let mut inlays = Vec::new();
4929 for (range, new_text) in &edits {
4930 let inlay = Inlay::inline_completion(
4931 post_inc(&mut self.next_inlay_id),
4932 range.start,
4933 new_text.as_str(),
4934 );
4935 inlay_ids.push(inlay.id);
4936 inlays.push(inlay);
4937 }
4938
4939 self.splice_inlays(vec![], inlays, cx);
4940 } else {
4941 let background_color = cx.theme().status().deleted_background;
4942 self.highlight_text::<InlineCompletionHighlight>(
4943 edits.iter().map(|(range, _)| range.clone()).collect(),
4944 HighlightStyle {
4945 background_color: Some(background_color),
4946 ..Default::default()
4947 },
4948 cx,
4949 );
4950 }
4951
4952 invalidation_row_range = edit_start_row..edit_end_row;
4953
4954 let display_mode = if all_edits_insertions_or_deletions(&edits, &multibuffer) {
4955 if provider.show_tab_accept_marker()
4956 && first_edit_start_point.row == last_edit_end_point.row
4957 && !edits.iter().any(|(_, edit)| edit.contains('\n'))
4958 {
4959 EditDisplayMode::TabAccept
4960 } else {
4961 EditDisplayMode::Inline
4962 }
4963 } else {
4964 EditDisplayMode::DiffPopover
4965 };
4966
4967 let snapshot = multibuffer.buffer_for_excerpt(excerpt_id).cloned()?;
4968
4969 InlineCompletion::Edit {
4970 edits,
4971 edit_preview: inline_completion.edit_preview,
4972 display_mode,
4973 snapshot,
4974 }
4975 };
4976
4977 let invalidation_range = multibuffer
4978 .anchor_before(Point::new(invalidation_row_range.start, 0))
4979 ..multibuffer.anchor_after(Point::new(
4980 invalidation_row_range.end,
4981 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4982 ));
4983
4984 self.active_inline_completion = Some(InlineCompletionState {
4985 inlay_ids,
4986 completion,
4987 invalidation_range,
4988 });
4989
4990 if self.show_inline_completions_in_menu(cx) && self.has_active_completions_menu() {
4991 if let Some(hint) = self.inline_completion_menu_hint(cx) {
4992 match self.context_menu.borrow_mut().as_mut() {
4993 Some(CodeContextMenu::Completions(menu)) => {
4994 menu.show_inline_completion_hint(hint);
4995 }
4996 _ => {}
4997 }
4998 }
4999 }
5000
5001 cx.notify();
5002
5003 Some(())
5004 }
5005
5006 fn inline_completion_menu_hint(
5007 &self,
5008 cx: &mut ViewContext<Self>,
5009 ) -> Option<InlineCompletionMenuHint> {
5010 let provider = self.inline_completion_provider()?;
5011 if self.has_active_inline_completion() {
5012 let editor_snapshot = self.snapshot(cx);
5013
5014 let text = match &self.active_inline_completion.as_ref()?.completion {
5015 InlineCompletion::Edit {
5016 edits,
5017 edit_preview,
5018 display_mode: _,
5019 snapshot,
5020 } => edit_preview
5021 .as_ref()
5022 .and_then(|edit_preview| {
5023 inline_completion_edit_text(&snapshot, &edits, edit_preview, true, cx)
5024 })
5025 .map(InlineCompletionText::Edit),
5026 InlineCompletion::Move(target) => {
5027 let target_point =
5028 target.to_point(&editor_snapshot.display_snapshot.buffer_snapshot);
5029 let target_line = target_point.row + 1;
5030 Some(InlineCompletionText::Move(
5031 format!("Jump to edit in line {}", target_line).into(),
5032 ))
5033 }
5034 };
5035
5036 Some(InlineCompletionMenuHint::Loaded { text: text? })
5037 } else if provider.is_refreshing(cx) {
5038 Some(InlineCompletionMenuHint::Loading)
5039 } else if provider.needs_terms_acceptance(cx) {
5040 Some(InlineCompletionMenuHint::PendingTermsAcceptance)
5041 } else {
5042 Some(InlineCompletionMenuHint::None)
5043 }
5044 }
5045
5046 pub fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5047 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5048 }
5049
5050 fn show_inline_completions_in_menu(&self, cx: &AppContext) -> bool {
5051 let by_provider = matches!(
5052 self.menu_inline_completions_policy,
5053 MenuInlineCompletionsPolicy::ByProvider
5054 );
5055
5056 by_provider
5057 && EditorSettings::get_global(cx).show_inline_completions_in_menu
5058 && self
5059 .inline_completion_provider()
5060 .map_or(false, |provider| provider.show_completions_in_menu())
5061 }
5062
5063 fn render_code_actions_indicator(
5064 &self,
5065 _style: &EditorStyle,
5066 row: DisplayRow,
5067 is_active: bool,
5068 cx: &mut ViewContext<Self>,
5069 ) -> Option<IconButton> {
5070 if self.available_code_actions.is_some() {
5071 Some(
5072 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5073 .shape(ui::IconButtonShape::Square)
5074 .icon_size(IconSize::XSmall)
5075 .icon_color(Color::Muted)
5076 .toggle_state(is_active)
5077 .tooltip({
5078 let focus_handle = self.focus_handle.clone();
5079 move |cx| {
5080 Tooltip::for_action_in(
5081 "Toggle Code Actions",
5082 &ToggleCodeActions {
5083 deployed_from_indicator: None,
5084 },
5085 &focus_handle,
5086 cx,
5087 )
5088 }
5089 })
5090 .on_click(cx.listener(move |editor, _e, cx| {
5091 editor.focus(cx);
5092 editor.toggle_code_actions(
5093 &ToggleCodeActions {
5094 deployed_from_indicator: Some(row),
5095 },
5096 cx,
5097 );
5098 })),
5099 )
5100 } else {
5101 None
5102 }
5103 }
5104
5105 fn clear_tasks(&mut self) {
5106 self.tasks.clear()
5107 }
5108
5109 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5110 if self.tasks.insert(key, value).is_some() {
5111 // This case should hopefully be rare, but just in case...
5112 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5113 }
5114 }
5115
5116 fn build_tasks_context(
5117 project: &Model<Project>,
5118 buffer: &Model<Buffer>,
5119 buffer_row: u32,
5120 tasks: &Arc<RunnableTasks>,
5121 cx: &mut ViewContext<Self>,
5122 ) -> Task<Option<task::TaskContext>> {
5123 let position = Point::new(buffer_row, tasks.column);
5124 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5125 let location = Location {
5126 buffer: buffer.clone(),
5127 range: range_start..range_start,
5128 };
5129 // Fill in the environmental variables from the tree-sitter captures
5130 let mut captured_task_variables = TaskVariables::default();
5131 for (capture_name, value) in tasks.extra_variables.clone() {
5132 captured_task_variables.insert(
5133 task::VariableName::Custom(capture_name.into()),
5134 value.clone(),
5135 );
5136 }
5137 project.update(cx, |project, cx| {
5138 project.task_store().update(cx, |task_store, cx| {
5139 task_store.task_context_for_location(captured_task_variables, location, cx)
5140 })
5141 })
5142 }
5143
5144 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5145 let Some((workspace, _)) = self.workspace.clone() else {
5146 return;
5147 };
5148 let Some(project) = self.project.clone() else {
5149 return;
5150 };
5151
5152 // Try to find a closest, enclosing node using tree-sitter that has a
5153 // task
5154 let Some((buffer, buffer_row, tasks)) = self
5155 .find_enclosing_node_task(cx)
5156 // Or find the task that's closest in row-distance.
5157 .or_else(|| self.find_closest_task(cx))
5158 else {
5159 return;
5160 };
5161
5162 let reveal_strategy = action.reveal;
5163 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5164 cx.spawn(|_, mut cx| async move {
5165 let context = task_context.await?;
5166 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5167
5168 let resolved = resolved_task.resolved.as_mut()?;
5169 resolved.reveal = reveal_strategy;
5170
5171 workspace
5172 .update(&mut cx, |workspace, cx| {
5173 workspace::tasks::schedule_resolved_task(
5174 workspace,
5175 task_source_kind,
5176 resolved_task,
5177 false,
5178 cx,
5179 );
5180 })
5181 .ok()
5182 })
5183 .detach();
5184 }
5185
5186 fn find_closest_task(
5187 &mut self,
5188 cx: &mut ViewContext<Self>,
5189 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5190 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5191
5192 let ((buffer_id, row), tasks) = self
5193 .tasks
5194 .iter()
5195 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5196
5197 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5198 let tasks = Arc::new(tasks.to_owned());
5199 Some((buffer, *row, tasks))
5200 }
5201
5202 fn find_enclosing_node_task(
5203 &mut self,
5204 cx: &mut ViewContext<Self>,
5205 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5206 let snapshot = self.buffer.read(cx).snapshot(cx);
5207 let offset = self.selections.newest::<usize>(cx).head();
5208 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5209 let buffer_id = excerpt.buffer().remote_id();
5210
5211 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5212 let mut cursor = layer.node().walk();
5213
5214 while cursor.goto_first_child_for_byte(offset).is_some() {
5215 if cursor.node().end_byte() == offset {
5216 cursor.goto_next_sibling();
5217 }
5218 }
5219
5220 // Ascend to the smallest ancestor that contains the range and has a task.
5221 loop {
5222 let node = cursor.node();
5223 let node_range = node.byte_range();
5224 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5225
5226 // Check if this node contains our offset
5227 if node_range.start <= offset && node_range.end >= offset {
5228 // If it contains offset, check for task
5229 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5230 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5231 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5232 }
5233 }
5234
5235 if !cursor.goto_parent() {
5236 break;
5237 }
5238 }
5239 None
5240 }
5241
5242 fn render_run_indicator(
5243 &self,
5244 _style: &EditorStyle,
5245 is_active: bool,
5246 row: DisplayRow,
5247 cx: &mut ViewContext<Self>,
5248 ) -> IconButton {
5249 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5250 .shape(ui::IconButtonShape::Square)
5251 .icon_size(IconSize::XSmall)
5252 .icon_color(Color::Muted)
5253 .toggle_state(is_active)
5254 .on_click(cx.listener(move |editor, _e, cx| {
5255 editor.focus(cx);
5256 editor.toggle_code_actions(
5257 &ToggleCodeActions {
5258 deployed_from_indicator: Some(row),
5259 },
5260 cx,
5261 );
5262 }))
5263 }
5264
5265 #[cfg(any(feature = "test-support", test))]
5266 pub fn context_menu_visible(&self) -> bool {
5267 self.context_menu
5268 .borrow()
5269 .as_ref()
5270 .map_or(false, |menu| menu.visible())
5271 }
5272
5273 #[cfg(feature = "test-support")]
5274 pub fn context_menu_contains_inline_completion(&self) -> bool {
5275 self.context_menu
5276 .borrow()
5277 .as_ref()
5278 .map_or(false, |menu| match menu {
5279 CodeContextMenu::Completions(menu) => {
5280 menu.entries.borrow().first().map_or(false, |entry| {
5281 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5282 })
5283 }
5284 CodeContextMenu::CodeActions(_) => false,
5285 })
5286 }
5287
5288 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5289 self.context_menu
5290 .borrow()
5291 .as_ref()
5292 .map(|menu| menu.origin(cursor_position))
5293 }
5294
5295 fn render_context_menu(
5296 &self,
5297 style: &EditorStyle,
5298 max_height_in_lines: u32,
5299 y_flipped: bool,
5300 cx: &mut ViewContext<Editor>,
5301 ) -> Option<AnyElement> {
5302 self.context_menu.borrow().as_ref().and_then(|menu| {
5303 if menu.visible() {
5304 Some(menu.render(style, max_height_in_lines, y_flipped, cx))
5305 } else {
5306 None
5307 }
5308 })
5309 }
5310
5311 fn render_context_menu_aside(
5312 &self,
5313 style: &EditorStyle,
5314 max_size: Size<Pixels>,
5315 cx: &mut ViewContext<Editor>,
5316 ) -> Option<AnyElement> {
5317 self.context_menu.borrow().as_ref().and_then(|menu| {
5318 if menu.visible() {
5319 menu.render_aside(
5320 style,
5321 max_size,
5322 self.workspace.as_ref().map(|(w, _)| w.clone()),
5323 cx,
5324 )
5325 } else {
5326 None
5327 }
5328 })
5329 }
5330
5331 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5332 cx.notify();
5333 self.completion_tasks.clear();
5334 let context_menu = self.context_menu.borrow_mut().take();
5335 if context_menu.is_some() && !self.show_inline_completions_in_menu(cx) {
5336 self.update_visible_inline_completion(cx);
5337 }
5338 context_menu
5339 }
5340
5341 fn show_snippet_choices(
5342 &mut self,
5343 choices: &Vec<String>,
5344 selection: Range<Anchor>,
5345 cx: &mut ViewContext<Self>,
5346 ) {
5347 if selection.start.buffer_id.is_none() {
5348 return;
5349 }
5350 let buffer_id = selection.start.buffer_id.unwrap();
5351 let buffer = self.buffer().read(cx).buffer(buffer_id);
5352 let id = post_inc(&mut self.next_completion_id);
5353
5354 if let Some(buffer) = buffer {
5355 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5356 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5357 ));
5358 }
5359 }
5360
5361 pub fn insert_snippet(
5362 &mut self,
5363 insertion_ranges: &[Range<usize>],
5364 snippet: Snippet,
5365 cx: &mut ViewContext<Self>,
5366 ) -> Result<()> {
5367 struct Tabstop<T> {
5368 is_end_tabstop: bool,
5369 ranges: Vec<Range<T>>,
5370 choices: Option<Vec<String>>,
5371 }
5372
5373 let tabstops = self.buffer.update(cx, |buffer, cx| {
5374 let snippet_text: Arc<str> = snippet.text.clone().into();
5375 buffer.edit(
5376 insertion_ranges
5377 .iter()
5378 .cloned()
5379 .map(|range| (range, snippet_text.clone())),
5380 Some(AutoindentMode::EachLine),
5381 cx,
5382 );
5383
5384 let snapshot = &*buffer.read(cx);
5385 let snippet = &snippet;
5386 snippet
5387 .tabstops
5388 .iter()
5389 .map(|tabstop| {
5390 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5391 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5392 });
5393 let mut tabstop_ranges = tabstop
5394 .ranges
5395 .iter()
5396 .flat_map(|tabstop_range| {
5397 let mut delta = 0_isize;
5398 insertion_ranges.iter().map(move |insertion_range| {
5399 let insertion_start = insertion_range.start as isize + delta;
5400 delta +=
5401 snippet.text.len() as isize - insertion_range.len() as isize;
5402
5403 let start = ((insertion_start + tabstop_range.start) as usize)
5404 .min(snapshot.len());
5405 let end = ((insertion_start + tabstop_range.end) as usize)
5406 .min(snapshot.len());
5407 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5408 })
5409 })
5410 .collect::<Vec<_>>();
5411 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5412
5413 Tabstop {
5414 is_end_tabstop,
5415 ranges: tabstop_ranges,
5416 choices: tabstop.choices.clone(),
5417 }
5418 })
5419 .collect::<Vec<_>>()
5420 });
5421 if let Some(tabstop) = tabstops.first() {
5422 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5423 s.select_ranges(tabstop.ranges.iter().cloned());
5424 });
5425
5426 if let Some(choices) = &tabstop.choices {
5427 if let Some(selection) = tabstop.ranges.first() {
5428 self.show_snippet_choices(choices, selection.clone(), cx)
5429 }
5430 }
5431
5432 // If we're already at the last tabstop and it's at the end of the snippet,
5433 // we're done, we don't need to keep the state around.
5434 if !tabstop.is_end_tabstop {
5435 let choices = tabstops
5436 .iter()
5437 .map(|tabstop| tabstop.choices.clone())
5438 .collect();
5439
5440 let ranges = tabstops
5441 .into_iter()
5442 .map(|tabstop| tabstop.ranges)
5443 .collect::<Vec<_>>();
5444
5445 self.snippet_stack.push(SnippetState {
5446 active_index: 0,
5447 ranges,
5448 choices,
5449 });
5450 }
5451
5452 // Check whether the just-entered snippet ends with an auto-closable bracket.
5453 if self.autoclose_regions.is_empty() {
5454 let snapshot = self.buffer.read(cx).snapshot(cx);
5455 for selection in &mut self.selections.all::<Point>(cx) {
5456 let selection_head = selection.head();
5457 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5458 continue;
5459 };
5460
5461 let mut bracket_pair = None;
5462 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5463 let prev_chars = snapshot
5464 .reversed_chars_at(selection_head)
5465 .collect::<String>();
5466 for (pair, enabled) in scope.brackets() {
5467 if enabled
5468 && pair.close
5469 && prev_chars.starts_with(pair.start.as_str())
5470 && next_chars.starts_with(pair.end.as_str())
5471 {
5472 bracket_pair = Some(pair.clone());
5473 break;
5474 }
5475 }
5476 if let Some(pair) = bracket_pair {
5477 let start = snapshot.anchor_after(selection_head);
5478 let end = snapshot.anchor_after(selection_head);
5479 self.autoclose_regions.push(AutocloseRegion {
5480 selection_id: selection.id,
5481 range: start..end,
5482 pair,
5483 });
5484 }
5485 }
5486 }
5487 }
5488 Ok(())
5489 }
5490
5491 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5492 self.move_to_snippet_tabstop(Bias::Right, cx)
5493 }
5494
5495 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5496 self.move_to_snippet_tabstop(Bias::Left, cx)
5497 }
5498
5499 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5500 if let Some(mut snippet) = self.snippet_stack.pop() {
5501 match bias {
5502 Bias::Left => {
5503 if snippet.active_index > 0 {
5504 snippet.active_index -= 1;
5505 } else {
5506 self.snippet_stack.push(snippet);
5507 return false;
5508 }
5509 }
5510 Bias::Right => {
5511 if snippet.active_index + 1 < snippet.ranges.len() {
5512 snippet.active_index += 1;
5513 } else {
5514 self.snippet_stack.push(snippet);
5515 return false;
5516 }
5517 }
5518 }
5519 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5520 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5521 s.select_anchor_ranges(current_ranges.iter().cloned())
5522 });
5523
5524 if let Some(choices) = &snippet.choices[snippet.active_index] {
5525 if let Some(selection) = current_ranges.first() {
5526 self.show_snippet_choices(&choices, selection.clone(), cx);
5527 }
5528 }
5529
5530 // If snippet state is not at the last tabstop, push it back on the stack
5531 if snippet.active_index + 1 < snippet.ranges.len() {
5532 self.snippet_stack.push(snippet);
5533 }
5534 return true;
5535 }
5536 }
5537
5538 false
5539 }
5540
5541 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5542 self.transact(cx, |this, cx| {
5543 this.select_all(&SelectAll, cx);
5544 this.insert("", cx);
5545 });
5546 }
5547
5548 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5549 self.transact(cx, |this, cx| {
5550 this.select_autoclose_pair(cx);
5551 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5552 if !this.linked_edit_ranges.is_empty() {
5553 let selections = this.selections.all::<MultiBufferPoint>(cx);
5554 let snapshot = this.buffer.read(cx).snapshot(cx);
5555
5556 for selection in selections.iter() {
5557 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5558 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5559 if selection_start.buffer_id != selection_end.buffer_id {
5560 continue;
5561 }
5562 if let Some(ranges) =
5563 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5564 {
5565 for (buffer, entries) in ranges {
5566 linked_ranges.entry(buffer).or_default().extend(entries);
5567 }
5568 }
5569 }
5570 }
5571
5572 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5573 if !this.selections.line_mode {
5574 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5575 for selection in &mut selections {
5576 if selection.is_empty() {
5577 let old_head = selection.head();
5578 let mut new_head =
5579 movement::left(&display_map, old_head.to_display_point(&display_map))
5580 .to_point(&display_map);
5581 if let Some((buffer, line_buffer_range)) = display_map
5582 .buffer_snapshot
5583 .buffer_line_for_row(MultiBufferRow(old_head.row))
5584 {
5585 let indent_size =
5586 buffer.indent_size_for_line(line_buffer_range.start.row);
5587 let indent_len = match indent_size.kind {
5588 IndentKind::Space => {
5589 buffer.settings_at(line_buffer_range.start, cx).tab_size
5590 }
5591 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5592 };
5593 if old_head.column <= indent_size.len && old_head.column > 0 {
5594 let indent_len = indent_len.get();
5595 new_head = cmp::min(
5596 new_head,
5597 MultiBufferPoint::new(
5598 old_head.row,
5599 ((old_head.column - 1) / indent_len) * indent_len,
5600 ),
5601 );
5602 }
5603 }
5604
5605 selection.set_head(new_head, SelectionGoal::None);
5606 }
5607 }
5608 }
5609
5610 this.signature_help_state.set_backspace_pressed(true);
5611 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5612 this.insert("", cx);
5613 let empty_str: Arc<str> = Arc::from("");
5614 for (buffer, edits) in linked_ranges {
5615 let snapshot = buffer.read(cx).snapshot();
5616 use text::ToPoint as TP;
5617
5618 let edits = edits
5619 .into_iter()
5620 .map(|range| {
5621 let end_point = TP::to_point(&range.end, &snapshot);
5622 let mut start_point = TP::to_point(&range.start, &snapshot);
5623
5624 if end_point == start_point {
5625 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5626 .saturating_sub(1);
5627 start_point =
5628 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5629 };
5630
5631 (start_point..end_point, empty_str.clone())
5632 })
5633 .sorted_by_key(|(range, _)| range.start)
5634 .collect::<Vec<_>>();
5635 buffer.update(cx, |this, cx| {
5636 this.edit(edits, None, cx);
5637 })
5638 }
5639 this.refresh_inline_completion(true, false, cx);
5640 linked_editing_ranges::refresh_linked_ranges(this, cx);
5641 });
5642 }
5643
5644 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5645 self.transact(cx, |this, cx| {
5646 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5647 let line_mode = s.line_mode;
5648 s.move_with(|map, selection| {
5649 if selection.is_empty() && !line_mode {
5650 let cursor = movement::right(map, selection.head());
5651 selection.end = cursor;
5652 selection.reversed = true;
5653 selection.goal = SelectionGoal::None;
5654 }
5655 })
5656 });
5657 this.insert("", cx);
5658 this.refresh_inline_completion(true, false, cx);
5659 });
5660 }
5661
5662 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5663 if self.move_to_prev_snippet_tabstop(cx) {
5664 return;
5665 }
5666
5667 self.outdent(&Outdent, cx);
5668 }
5669
5670 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5671 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5672 return;
5673 }
5674
5675 let mut selections = self.selections.all_adjusted(cx);
5676 let buffer = self.buffer.read(cx);
5677 let snapshot = buffer.snapshot(cx);
5678 let rows_iter = selections.iter().map(|s| s.head().row);
5679 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5680
5681 let mut edits = Vec::new();
5682 let mut prev_edited_row = 0;
5683 let mut row_delta = 0;
5684 for selection in &mut selections {
5685 if selection.start.row != prev_edited_row {
5686 row_delta = 0;
5687 }
5688 prev_edited_row = selection.end.row;
5689
5690 // If the selection is non-empty, then increase the indentation of the selected lines.
5691 if !selection.is_empty() {
5692 row_delta =
5693 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5694 continue;
5695 }
5696
5697 // If the selection is empty and the cursor is in the leading whitespace before the
5698 // suggested indentation, then auto-indent the line.
5699 let cursor = selection.head();
5700 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5701 if let Some(suggested_indent) =
5702 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5703 {
5704 if cursor.column < suggested_indent.len
5705 && cursor.column <= current_indent.len
5706 && current_indent.len <= suggested_indent.len
5707 {
5708 selection.start = Point::new(cursor.row, suggested_indent.len);
5709 selection.end = selection.start;
5710 if row_delta == 0 {
5711 edits.extend(Buffer::edit_for_indent_size_adjustment(
5712 cursor.row,
5713 current_indent,
5714 suggested_indent,
5715 ));
5716 row_delta = suggested_indent.len - current_indent.len;
5717 }
5718 continue;
5719 }
5720 }
5721
5722 // Otherwise, insert a hard or soft tab.
5723 let settings = buffer.settings_at(cursor, cx);
5724 let tab_size = if settings.hard_tabs {
5725 IndentSize::tab()
5726 } else {
5727 let tab_size = settings.tab_size.get();
5728 let char_column = snapshot
5729 .text_for_range(Point::new(cursor.row, 0)..cursor)
5730 .flat_map(str::chars)
5731 .count()
5732 + row_delta as usize;
5733 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5734 IndentSize::spaces(chars_to_next_tab_stop)
5735 };
5736 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5737 selection.end = selection.start;
5738 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5739 row_delta += tab_size.len;
5740 }
5741
5742 self.transact(cx, |this, cx| {
5743 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5744 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5745 this.refresh_inline_completion(true, false, cx);
5746 });
5747 }
5748
5749 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5750 if self.read_only(cx) {
5751 return;
5752 }
5753 let mut selections = self.selections.all::<Point>(cx);
5754 let mut prev_edited_row = 0;
5755 let mut row_delta = 0;
5756 let mut edits = Vec::new();
5757 let buffer = self.buffer.read(cx);
5758 let snapshot = buffer.snapshot(cx);
5759 for selection in &mut selections {
5760 if selection.start.row != prev_edited_row {
5761 row_delta = 0;
5762 }
5763 prev_edited_row = selection.end.row;
5764
5765 row_delta =
5766 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5767 }
5768
5769 self.transact(cx, |this, cx| {
5770 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5771 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5772 });
5773 }
5774
5775 fn indent_selection(
5776 buffer: &MultiBuffer,
5777 snapshot: &MultiBufferSnapshot,
5778 selection: &mut Selection<Point>,
5779 edits: &mut Vec<(Range<Point>, String)>,
5780 delta_for_start_row: u32,
5781 cx: &AppContext,
5782 ) -> u32 {
5783 let settings = buffer.settings_at(selection.start, cx);
5784 let tab_size = settings.tab_size.get();
5785 let indent_kind = if settings.hard_tabs {
5786 IndentKind::Tab
5787 } else {
5788 IndentKind::Space
5789 };
5790 let mut start_row = selection.start.row;
5791 let mut end_row = selection.end.row + 1;
5792
5793 // If a selection ends at the beginning of a line, don't indent
5794 // that last line.
5795 if selection.end.column == 0 && selection.end.row > selection.start.row {
5796 end_row -= 1;
5797 }
5798
5799 // Avoid re-indenting a row that has already been indented by a
5800 // previous selection, but still update this selection's column
5801 // to reflect that indentation.
5802 if delta_for_start_row > 0 {
5803 start_row += 1;
5804 selection.start.column += delta_for_start_row;
5805 if selection.end.row == selection.start.row {
5806 selection.end.column += delta_for_start_row;
5807 }
5808 }
5809
5810 let mut delta_for_end_row = 0;
5811 let has_multiple_rows = start_row + 1 != end_row;
5812 for row in start_row..end_row {
5813 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5814 let indent_delta = match (current_indent.kind, indent_kind) {
5815 (IndentKind::Space, IndentKind::Space) => {
5816 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5817 IndentSize::spaces(columns_to_next_tab_stop)
5818 }
5819 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5820 (_, IndentKind::Tab) => IndentSize::tab(),
5821 };
5822
5823 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5824 0
5825 } else {
5826 selection.start.column
5827 };
5828 let row_start = Point::new(row, start);
5829 edits.push((
5830 row_start..row_start,
5831 indent_delta.chars().collect::<String>(),
5832 ));
5833
5834 // Update this selection's endpoints to reflect the indentation.
5835 if row == selection.start.row {
5836 selection.start.column += indent_delta.len;
5837 }
5838 if row == selection.end.row {
5839 selection.end.column += indent_delta.len;
5840 delta_for_end_row = indent_delta.len;
5841 }
5842 }
5843
5844 if selection.start.row == selection.end.row {
5845 delta_for_start_row + delta_for_end_row
5846 } else {
5847 delta_for_end_row
5848 }
5849 }
5850
5851 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5852 if self.read_only(cx) {
5853 return;
5854 }
5855 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5856 let selections = self.selections.all::<Point>(cx);
5857 let mut deletion_ranges = Vec::new();
5858 let mut last_outdent = None;
5859 {
5860 let buffer = self.buffer.read(cx);
5861 let snapshot = buffer.snapshot(cx);
5862 for selection in &selections {
5863 let settings = buffer.settings_at(selection.start, cx);
5864 let tab_size = settings.tab_size.get();
5865 let mut rows = selection.spanned_rows(false, &display_map);
5866
5867 // Avoid re-outdenting a row that has already been outdented by a
5868 // previous selection.
5869 if let Some(last_row) = last_outdent {
5870 if last_row == rows.start {
5871 rows.start = rows.start.next_row();
5872 }
5873 }
5874 let has_multiple_rows = rows.len() > 1;
5875 for row in rows.iter_rows() {
5876 let indent_size = snapshot.indent_size_for_line(row);
5877 if indent_size.len > 0 {
5878 let deletion_len = match indent_size.kind {
5879 IndentKind::Space => {
5880 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5881 if columns_to_prev_tab_stop == 0 {
5882 tab_size
5883 } else {
5884 columns_to_prev_tab_stop
5885 }
5886 }
5887 IndentKind::Tab => 1,
5888 };
5889 let start = if has_multiple_rows
5890 || deletion_len > selection.start.column
5891 || indent_size.len < selection.start.column
5892 {
5893 0
5894 } else {
5895 selection.start.column - deletion_len
5896 };
5897 deletion_ranges.push(
5898 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5899 );
5900 last_outdent = Some(row);
5901 }
5902 }
5903 }
5904 }
5905
5906 self.transact(cx, |this, cx| {
5907 this.buffer.update(cx, |buffer, cx| {
5908 let empty_str: Arc<str> = Arc::default();
5909 buffer.edit(
5910 deletion_ranges
5911 .into_iter()
5912 .map(|range| (range, empty_str.clone())),
5913 None,
5914 cx,
5915 );
5916 });
5917 let selections = this.selections.all::<usize>(cx);
5918 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5919 });
5920 }
5921
5922 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5923 if self.read_only(cx) {
5924 return;
5925 }
5926 let selections = self
5927 .selections
5928 .all::<usize>(cx)
5929 .into_iter()
5930 .map(|s| s.range());
5931
5932 self.transact(cx, |this, cx| {
5933 this.buffer.update(cx, |buffer, cx| {
5934 buffer.autoindent_ranges(selections, cx);
5935 });
5936 let selections = this.selections.all::<usize>(cx);
5937 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5938 });
5939 }
5940
5941 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5942 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5943 let selections = self.selections.all::<Point>(cx);
5944
5945 let mut new_cursors = Vec::new();
5946 let mut edit_ranges = Vec::new();
5947 let mut selections = selections.iter().peekable();
5948 while let Some(selection) = selections.next() {
5949 let mut rows = selection.spanned_rows(false, &display_map);
5950 let goal_display_column = selection.head().to_display_point(&display_map).column();
5951
5952 // Accumulate contiguous regions of rows that we want to delete.
5953 while let Some(next_selection) = selections.peek() {
5954 let next_rows = next_selection.spanned_rows(false, &display_map);
5955 if next_rows.start <= rows.end {
5956 rows.end = next_rows.end;
5957 selections.next().unwrap();
5958 } else {
5959 break;
5960 }
5961 }
5962
5963 let buffer = &display_map.buffer_snapshot;
5964 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5965 let edit_end;
5966 let cursor_buffer_row;
5967 if buffer.max_point().row >= rows.end.0 {
5968 // If there's a line after the range, delete the \n from the end of the row range
5969 // and position the cursor on the next line.
5970 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5971 cursor_buffer_row = rows.end;
5972 } else {
5973 // If there isn't a line after the range, delete the \n from the line before the
5974 // start of the row range and position the cursor there.
5975 edit_start = edit_start.saturating_sub(1);
5976 edit_end = buffer.len();
5977 cursor_buffer_row = rows.start.previous_row();
5978 }
5979
5980 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5981 *cursor.column_mut() =
5982 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5983
5984 new_cursors.push((
5985 selection.id,
5986 buffer.anchor_after(cursor.to_point(&display_map)),
5987 ));
5988 edit_ranges.push(edit_start..edit_end);
5989 }
5990
5991 self.transact(cx, |this, cx| {
5992 let buffer = this.buffer.update(cx, |buffer, cx| {
5993 let empty_str: Arc<str> = Arc::default();
5994 buffer.edit(
5995 edit_ranges
5996 .into_iter()
5997 .map(|range| (range, empty_str.clone())),
5998 None,
5999 cx,
6000 );
6001 buffer.snapshot(cx)
6002 });
6003 let new_selections = new_cursors
6004 .into_iter()
6005 .map(|(id, cursor)| {
6006 let cursor = cursor.to_point(&buffer);
6007 Selection {
6008 id,
6009 start: cursor,
6010 end: cursor,
6011 reversed: false,
6012 goal: SelectionGoal::None,
6013 }
6014 })
6015 .collect();
6016
6017 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6018 s.select(new_selections);
6019 });
6020 });
6021 }
6022
6023 pub fn join_lines_impl(&mut self, insert_whitespace: bool, cx: &mut ViewContext<Self>) {
6024 if self.read_only(cx) {
6025 return;
6026 }
6027 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6028 for selection in self.selections.all::<Point>(cx) {
6029 let start = MultiBufferRow(selection.start.row);
6030 // Treat single line selections as if they include the next line. Otherwise this action
6031 // would do nothing for single line selections individual cursors.
6032 let end = if selection.start.row == selection.end.row {
6033 MultiBufferRow(selection.start.row + 1)
6034 } else {
6035 MultiBufferRow(selection.end.row)
6036 };
6037
6038 if let Some(last_row_range) = row_ranges.last_mut() {
6039 if start <= last_row_range.end {
6040 last_row_range.end = end;
6041 continue;
6042 }
6043 }
6044 row_ranges.push(start..end);
6045 }
6046
6047 let snapshot = self.buffer.read(cx).snapshot(cx);
6048 let mut cursor_positions = Vec::new();
6049 for row_range in &row_ranges {
6050 let anchor = snapshot.anchor_before(Point::new(
6051 row_range.end.previous_row().0,
6052 snapshot.line_len(row_range.end.previous_row()),
6053 ));
6054 cursor_positions.push(anchor..anchor);
6055 }
6056
6057 self.transact(cx, |this, cx| {
6058 for row_range in row_ranges.into_iter().rev() {
6059 for row in row_range.iter_rows().rev() {
6060 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6061 let next_line_row = row.next_row();
6062 let indent = snapshot.indent_size_for_line(next_line_row);
6063 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6064
6065 let replace =
6066 if snapshot.line_len(next_line_row) > indent.len && insert_whitespace {
6067 " "
6068 } else {
6069 ""
6070 };
6071
6072 this.buffer.update(cx, |buffer, cx| {
6073 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6074 });
6075 }
6076 }
6077
6078 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6079 s.select_anchor_ranges(cursor_positions)
6080 });
6081 });
6082 }
6083
6084 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6085 self.join_lines_impl(true, cx);
6086 }
6087
6088 pub fn sort_lines_case_sensitive(
6089 &mut self,
6090 _: &SortLinesCaseSensitive,
6091 cx: &mut ViewContext<Self>,
6092 ) {
6093 self.manipulate_lines(cx, |lines| lines.sort())
6094 }
6095
6096 pub fn sort_lines_case_insensitive(
6097 &mut self,
6098 _: &SortLinesCaseInsensitive,
6099 cx: &mut ViewContext<Self>,
6100 ) {
6101 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6102 }
6103
6104 pub fn unique_lines_case_insensitive(
6105 &mut self,
6106 _: &UniqueLinesCaseInsensitive,
6107 cx: &mut ViewContext<Self>,
6108 ) {
6109 self.manipulate_lines(cx, |lines| {
6110 let mut seen = HashSet::default();
6111 lines.retain(|line| seen.insert(line.to_lowercase()));
6112 })
6113 }
6114
6115 pub fn unique_lines_case_sensitive(
6116 &mut self,
6117 _: &UniqueLinesCaseSensitive,
6118 cx: &mut ViewContext<Self>,
6119 ) {
6120 self.manipulate_lines(cx, |lines| {
6121 let mut seen = HashSet::default();
6122 lines.retain(|line| seen.insert(*line));
6123 })
6124 }
6125
6126 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6127 let mut revert_changes = HashMap::default();
6128 let snapshot = self.snapshot(cx);
6129 for hunk in hunks_for_ranges(
6130 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
6131 &snapshot,
6132 ) {
6133 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6134 }
6135 if !revert_changes.is_empty() {
6136 self.transact(cx, |editor, cx| {
6137 editor.revert(revert_changes, cx);
6138 });
6139 }
6140 }
6141
6142 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6143 let Some(project) = self.project.clone() else {
6144 return;
6145 };
6146 self.reload(project, cx).detach_and_notify_err(cx);
6147 }
6148
6149 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6150 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
6151 if !revert_changes.is_empty() {
6152 self.transact(cx, |editor, cx| {
6153 editor.revert(revert_changes, cx);
6154 });
6155 }
6156 }
6157
6158 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
6159 let snapshot = self.buffer.read(cx).read(cx);
6160 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
6161 drop(snapshot);
6162 let mut revert_changes = HashMap::default();
6163 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6164 if !revert_changes.is_empty() {
6165 self.revert(revert_changes, cx)
6166 }
6167 }
6168 }
6169
6170 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6171 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6172 let project_path = buffer.read(cx).project_path(cx)?;
6173 let project = self.project.as_ref()?.read(cx);
6174 let entry = project.entry_for_path(&project_path, cx)?;
6175 let parent = match &entry.canonical_path {
6176 Some(canonical_path) => canonical_path.to_path_buf(),
6177 None => project.absolute_path(&project_path, cx)?,
6178 }
6179 .parent()?
6180 .to_path_buf();
6181 Some(parent)
6182 }) {
6183 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6184 }
6185 }
6186
6187 fn gather_revert_changes(
6188 &self,
6189 selections: &[Selection<Point>],
6190 cx: &mut ViewContext<Editor>,
6191 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6192 let mut revert_changes = HashMap::default();
6193 let snapshot = self.snapshot(cx);
6194 for hunk in hunks_for_selections(&snapshot, selections) {
6195 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6196 }
6197 revert_changes
6198 }
6199
6200 pub fn prepare_revert_change(
6201 &self,
6202 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6203 hunk: &MultiBufferDiffHunk,
6204 cx: &AppContext,
6205 ) -> Option<()> {
6206 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6207 let buffer = buffer.read(cx);
6208 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6209 let original_text = change_set
6210 .read(cx)
6211 .base_text
6212 .as_ref()?
6213 .read(cx)
6214 .as_rope()
6215 .slice(hunk.diff_base_byte_range.clone());
6216 let buffer_snapshot = buffer.snapshot();
6217 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6218 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6219 probe
6220 .0
6221 .start
6222 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6223 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6224 }) {
6225 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6226 Some(())
6227 } else {
6228 None
6229 }
6230 }
6231
6232 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6233 self.manipulate_lines(cx, |lines| lines.reverse())
6234 }
6235
6236 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6237 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6238 }
6239
6240 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6241 where
6242 Fn: FnMut(&mut Vec<&str>),
6243 {
6244 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6245 let buffer = self.buffer.read(cx).snapshot(cx);
6246
6247 let mut edits = Vec::new();
6248
6249 let selections = self.selections.all::<Point>(cx);
6250 let mut selections = selections.iter().peekable();
6251 let mut contiguous_row_selections = Vec::new();
6252 let mut new_selections = Vec::new();
6253 let mut added_lines = 0;
6254 let mut removed_lines = 0;
6255
6256 while let Some(selection) = selections.next() {
6257 let (start_row, end_row) = consume_contiguous_rows(
6258 &mut contiguous_row_selections,
6259 selection,
6260 &display_map,
6261 &mut selections,
6262 );
6263
6264 let start_point = Point::new(start_row.0, 0);
6265 let end_point = Point::new(
6266 end_row.previous_row().0,
6267 buffer.line_len(end_row.previous_row()),
6268 );
6269 let text = buffer
6270 .text_for_range(start_point..end_point)
6271 .collect::<String>();
6272
6273 let mut lines = text.split('\n').collect_vec();
6274
6275 let lines_before = lines.len();
6276 callback(&mut lines);
6277 let lines_after = lines.len();
6278
6279 edits.push((start_point..end_point, lines.join("\n")));
6280
6281 // Selections must change based on added and removed line count
6282 let start_row =
6283 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6284 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6285 new_selections.push(Selection {
6286 id: selection.id,
6287 start: start_row,
6288 end: end_row,
6289 goal: SelectionGoal::None,
6290 reversed: selection.reversed,
6291 });
6292
6293 if lines_after > lines_before {
6294 added_lines += lines_after - lines_before;
6295 } else if lines_before > lines_after {
6296 removed_lines += lines_before - lines_after;
6297 }
6298 }
6299
6300 self.transact(cx, |this, cx| {
6301 let buffer = this.buffer.update(cx, |buffer, cx| {
6302 buffer.edit(edits, None, cx);
6303 buffer.snapshot(cx)
6304 });
6305
6306 // Recalculate offsets on newly edited buffer
6307 let new_selections = new_selections
6308 .iter()
6309 .map(|s| {
6310 let start_point = Point::new(s.start.0, 0);
6311 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6312 Selection {
6313 id: s.id,
6314 start: buffer.point_to_offset(start_point),
6315 end: buffer.point_to_offset(end_point),
6316 goal: s.goal,
6317 reversed: s.reversed,
6318 }
6319 })
6320 .collect();
6321
6322 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6323 s.select(new_selections);
6324 });
6325
6326 this.request_autoscroll(Autoscroll::fit(), cx);
6327 });
6328 }
6329
6330 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6331 self.manipulate_text(cx, |text| text.to_uppercase())
6332 }
6333
6334 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6335 self.manipulate_text(cx, |text| text.to_lowercase())
6336 }
6337
6338 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6339 self.manipulate_text(cx, |text| {
6340 text.split('\n')
6341 .map(|line| line.to_case(Case::Title))
6342 .join("\n")
6343 })
6344 }
6345
6346 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6347 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6348 }
6349
6350 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6351 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6352 }
6353
6354 pub fn convert_to_upper_camel_case(
6355 &mut self,
6356 _: &ConvertToUpperCamelCase,
6357 cx: &mut ViewContext<Self>,
6358 ) {
6359 self.manipulate_text(cx, |text| {
6360 text.split('\n')
6361 .map(|line| line.to_case(Case::UpperCamel))
6362 .join("\n")
6363 })
6364 }
6365
6366 pub fn convert_to_lower_camel_case(
6367 &mut self,
6368 _: &ConvertToLowerCamelCase,
6369 cx: &mut ViewContext<Self>,
6370 ) {
6371 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6372 }
6373
6374 pub fn convert_to_opposite_case(
6375 &mut self,
6376 _: &ConvertToOppositeCase,
6377 cx: &mut ViewContext<Self>,
6378 ) {
6379 self.manipulate_text(cx, |text| {
6380 text.chars()
6381 .fold(String::with_capacity(text.len()), |mut t, c| {
6382 if c.is_uppercase() {
6383 t.extend(c.to_lowercase());
6384 } else {
6385 t.extend(c.to_uppercase());
6386 }
6387 t
6388 })
6389 })
6390 }
6391
6392 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6393 where
6394 Fn: FnMut(&str) -> String,
6395 {
6396 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6397 let buffer = self.buffer.read(cx).snapshot(cx);
6398
6399 let mut new_selections = Vec::new();
6400 let mut edits = Vec::new();
6401 let mut selection_adjustment = 0i32;
6402
6403 for selection in self.selections.all::<usize>(cx) {
6404 let selection_is_empty = selection.is_empty();
6405
6406 let (start, end) = if selection_is_empty {
6407 let word_range = movement::surrounding_word(
6408 &display_map,
6409 selection.start.to_display_point(&display_map),
6410 );
6411 let start = word_range.start.to_offset(&display_map, Bias::Left);
6412 let end = word_range.end.to_offset(&display_map, Bias::Left);
6413 (start, end)
6414 } else {
6415 (selection.start, selection.end)
6416 };
6417
6418 let text = buffer.text_for_range(start..end).collect::<String>();
6419 let old_length = text.len() as i32;
6420 let text = callback(&text);
6421
6422 new_selections.push(Selection {
6423 start: (start as i32 - selection_adjustment) as usize,
6424 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6425 goal: SelectionGoal::None,
6426 ..selection
6427 });
6428
6429 selection_adjustment += old_length - text.len() as i32;
6430
6431 edits.push((start..end, text));
6432 }
6433
6434 self.transact(cx, |this, cx| {
6435 this.buffer.update(cx, |buffer, cx| {
6436 buffer.edit(edits, None, cx);
6437 });
6438
6439 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6440 s.select(new_selections);
6441 });
6442
6443 this.request_autoscroll(Autoscroll::fit(), cx);
6444 });
6445 }
6446
6447 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6448 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6449 let buffer = &display_map.buffer_snapshot;
6450 let selections = self.selections.all::<Point>(cx);
6451
6452 let mut edits = Vec::new();
6453 let mut selections_iter = selections.iter().peekable();
6454 while let Some(selection) = selections_iter.next() {
6455 let mut rows = selection.spanned_rows(false, &display_map);
6456 // duplicate line-wise
6457 if whole_lines || selection.start == selection.end {
6458 // Avoid duplicating the same lines twice.
6459 while let Some(next_selection) = selections_iter.peek() {
6460 let next_rows = next_selection.spanned_rows(false, &display_map);
6461 if next_rows.start < rows.end {
6462 rows.end = next_rows.end;
6463 selections_iter.next().unwrap();
6464 } else {
6465 break;
6466 }
6467 }
6468
6469 // Copy the text from the selected row region and splice it either at the start
6470 // or end of the region.
6471 let start = Point::new(rows.start.0, 0);
6472 let end = Point::new(
6473 rows.end.previous_row().0,
6474 buffer.line_len(rows.end.previous_row()),
6475 );
6476 let text = buffer
6477 .text_for_range(start..end)
6478 .chain(Some("\n"))
6479 .collect::<String>();
6480 let insert_location = if upwards {
6481 Point::new(rows.end.0, 0)
6482 } else {
6483 start
6484 };
6485 edits.push((insert_location..insert_location, text));
6486 } else {
6487 // duplicate character-wise
6488 let start = selection.start;
6489 let end = selection.end;
6490 let text = buffer.text_for_range(start..end).collect::<String>();
6491 edits.push((selection.end..selection.end, text));
6492 }
6493 }
6494
6495 self.transact(cx, |this, cx| {
6496 this.buffer.update(cx, |buffer, cx| {
6497 buffer.edit(edits, None, cx);
6498 });
6499
6500 this.request_autoscroll(Autoscroll::fit(), cx);
6501 });
6502 }
6503
6504 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6505 self.duplicate(true, true, cx);
6506 }
6507
6508 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6509 self.duplicate(false, true, cx);
6510 }
6511
6512 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6513 self.duplicate(false, false, cx);
6514 }
6515
6516 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6517 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6518 let buffer = self.buffer.read(cx).snapshot(cx);
6519
6520 let mut edits = Vec::new();
6521 let mut unfold_ranges = Vec::new();
6522 let mut refold_creases = Vec::new();
6523
6524 let selections = self.selections.all::<Point>(cx);
6525 let mut selections = selections.iter().peekable();
6526 let mut contiguous_row_selections = Vec::new();
6527 let mut new_selections = Vec::new();
6528
6529 while let Some(selection) = selections.next() {
6530 // Find all the selections that span a contiguous row range
6531 let (start_row, end_row) = consume_contiguous_rows(
6532 &mut contiguous_row_selections,
6533 selection,
6534 &display_map,
6535 &mut selections,
6536 );
6537
6538 // Move the text spanned by the row range to be before the line preceding the row range
6539 if start_row.0 > 0 {
6540 let range_to_move = Point::new(
6541 start_row.previous_row().0,
6542 buffer.line_len(start_row.previous_row()),
6543 )
6544 ..Point::new(
6545 end_row.previous_row().0,
6546 buffer.line_len(end_row.previous_row()),
6547 );
6548 let insertion_point = display_map
6549 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6550 .0;
6551
6552 // Don't move lines across excerpts
6553 if buffer
6554 .excerpt_boundaries_in_range((
6555 Bound::Excluded(insertion_point),
6556 Bound::Included(range_to_move.end),
6557 ))
6558 .next()
6559 .is_none()
6560 {
6561 let text = buffer
6562 .text_for_range(range_to_move.clone())
6563 .flat_map(|s| s.chars())
6564 .skip(1)
6565 .chain(['\n'])
6566 .collect::<String>();
6567
6568 edits.push((
6569 buffer.anchor_after(range_to_move.start)
6570 ..buffer.anchor_before(range_to_move.end),
6571 String::new(),
6572 ));
6573 let insertion_anchor = buffer.anchor_after(insertion_point);
6574 edits.push((insertion_anchor..insertion_anchor, text));
6575
6576 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6577
6578 // Move selections up
6579 new_selections.extend(contiguous_row_selections.drain(..).map(
6580 |mut selection| {
6581 selection.start.row -= row_delta;
6582 selection.end.row -= row_delta;
6583 selection
6584 },
6585 ));
6586
6587 // Move folds up
6588 unfold_ranges.push(range_to_move.clone());
6589 for fold in display_map.folds_in_range(
6590 buffer.anchor_before(range_to_move.start)
6591 ..buffer.anchor_after(range_to_move.end),
6592 ) {
6593 let mut start = fold.range.start.to_point(&buffer);
6594 let mut end = fold.range.end.to_point(&buffer);
6595 start.row -= row_delta;
6596 end.row -= row_delta;
6597 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6598 }
6599 }
6600 }
6601
6602 // If we didn't move line(s), preserve the existing selections
6603 new_selections.append(&mut contiguous_row_selections);
6604 }
6605
6606 self.transact(cx, |this, cx| {
6607 this.unfold_ranges(&unfold_ranges, true, true, cx);
6608 this.buffer.update(cx, |buffer, cx| {
6609 for (range, text) in edits {
6610 buffer.edit([(range, text)], None, cx);
6611 }
6612 });
6613 this.fold_creases(refold_creases, true, cx);
6614 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6615 s.select(new_selections);
6616 })
6617 });
6618 }
6619
6620 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6621 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6622 let buffer = self.buffer.read(cx).snapshot(cx);
6623
6624 let mut edits = Vec::new();
6625 let mut unfold_ranges = Vec::new();
6626 let mut refold_creases = Vec::new();
6627
6628 let selections = self.selections.all::<Point>(cx);
6629 let mut selections = selections.iter().peekable();
6630 let mut contiguous_row_selections = Vec::new();
6631 let mut new_selections = Vec::new();
6632
6633 while let Some(selection) = selections.next() {
6634 // Find all the selections that span a contiguous row range
6635 let (start_row, end_row) = consume_contiguous_rows(
6636 &mut contiguous_row_selections,
6637 selection,
6638 &display_map,
6639 &mut selections,
6640 );
6641
6642 // Move the text spanned by the row range to be after the last line of the row range
6643 if end_row.0 <= buffer.max_point().row {
6644 let range_to_move =
6645 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6646 let insertion_point = display_map
6647 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6648 .0;
6649
6650 // Don't move lines across excerpt boundaries
6651 if buffer
6652 .excerpt_boundaries_in_range((
6653 Bound::Excluded(range_to_move.start),
6654 Bound::Included(insertion_point),
6655 ))
6656 .next()
6657 .is_none()
6658 {
6659 let mut text = String::from("\n");
6660 text.extend(buffer.text_for_range(range_to_move.clone()));
6661 text.pop(); // Drop trailing newline
6662 edits.push((
6663 buffer.anchor_after(range_to_move.start)
6664 ..buffer.anchor_before(range_to_move.end),
6665 String::new(),
6666 ));
6667 let insertion_anchor = buffer.anchor_after(insertion_point);
6668 edits.push((insertion_anchor..insertion_anchor, text));
6669
6670 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6671
6672 // Move selections down
6673 new_selections.extend(contiguous_row_selections.drain(..).map(
6674 |mut selection| {
6675 selection.start.row += row_delta;
6676 selection.end.row += row_delta;
6677 selection
6678 },
6679 ));
6680
6681 // Move folds down
6682 unfold_ranges.push(range_to_move.clone());
6683 for fold in display_map.folds_in_range(
6684 buffer.anchor_before(range_to_move.start)
6685 ..buffer.anchor_after(range_to_move.end),
6686 ) {
6687 let mut start = fold.range.start.to_point(&buffer);
6688 let mut end = fold.range.end.to_point(&buffer);
6689 start.row += row_delta;
6690 end.row += row_delta;
6691 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6692 }
6693 }
6694 }
6695
6696 // If we didn't move line(s), preserve the existing selections
6697 new_selections.append(&mut contiguous_row_selections);
6698 }
6699
6700 self.transact(cx, |this, cx| {
6701 this.unfold_ranges(&unfold_ranges, true, true, cx);
6702 this.buffer.update(cx, |buffer, cx| {
6703 for (range, text) in edits {
6704 buffer.edit([(range, text)], None, cx);
6705 }
6706 });
6707 this.fold_creases(refold_creases, true, cx);
6708 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6709 });
6710 }
6711
6712 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6713 let text_layout_details = &self.text_layout_details(cx);
6714 self.transact(cx, |this, cx| {
6715 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6716 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6717 let line_mode = s.line_mode;
6718 s.move_with(|display_map, selection| {
6719 if !selection.is_empty() || line_mode {
6720 return;
6721 }
6722
6723 let mut head = selection.head();
6724 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6725 if head.column() == display_map.line_len(head.row()) {
6726 transpose_offset = display_map
6727 .buffer_snapshot
6728 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6729 }
6730
6731 if transpose_offset == 0 {
6732 return;
6733 }
6734
6735 *head.column_mut() += 1;
6736 head = display_map.clip_point(head, Bias::Right);
6737 let goal = SelectionGoal::HorizontalPosition(
6738 display_map
6739 .x_for_display_point(head, text_layout_details)
6740 .into(),
6741 );
6742 selection.collapse_to(head, goal);
6743
6744 let transpose_start = display_map
6745 .buffer_snapshot
6746 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6747 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6748 let transpose_end = display_map
6749 .buffer_snapshot
6750 .clip_offset(transpose_offset + 1, Bias::Right);
6751 if let Some(ch) =
6752 display_map.buffer_snapshot.chars_at(transpose_start).next()
6753 {
6754 edits.push((transpose_start..transpose_offset, String::new()));
6755 edits.push((transpose_end..transpose_end, ch.to_string()));
6756 }
6757 }
6758 });
6759 edits
6760 });
6761 this.buffer
6762 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6763 let selections = this.selections.all::<usize>(cx);
6764 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6765 s.select(selections);
6766 });
6767 });
6768 }
6769
6770 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6771 self.rewrap_impl(IsVimMode::No, cx)
6772 }
6773
6774 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6775 let buffer = self.buffer.read(cx).snapshot(cx);
6776 let selections = self.selections.all::<Point>(cx);
6777 let mut selections = selections.iter().peekable();
6778
6779 let mut edits = Vec::new();
6780 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6781
6782 while let Some(selection) = selections.next() {
6783 let mut start_row = selection.start.row;
6784 let mut end_row = selection.end.row;
6785
6786 // Skip selections that overlap with a range that has already been rewrapped.
6787 let selection_range = start_row..end_row;
6788 if rewrapped_row_ranges
6789 .iter()
6790 .any(|range| range.overlaps(&selection_range))
6791 {
6792 continue;
6793 }
6794
6795 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6796
6797 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6798 match language_scope.language_name().0.as_ref() {
6799 "Markdown" | "Plain Text" => {
6800 should_rewrap = true;
6801 }
6802 _ => {}
6803 }
6804 }
6805
6806 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6807
6808 // Since not all lines in the selection may be at the same indent
6809 // level, choose the indent size that is the most common between all
6810 // of the lines.
6811 //
6812 // If there is a tie, we use the deepest indent.
6813 let (indent_size, indent_end) = {
6814 let mut indent_size_occurrences = HashMap::default();
6815 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6816
6817 for row in start_row..=end_row {
6818 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6819 rows_by_indent_size.entry(indent).or_default().push(row);
6820 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6821 }
6822
6823 let indent_size = indent_size_occurrences
6824 .into_iter()
6825 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6826 .map(|(indent, _)| indent)
6827 .unwrap_or_default();
6828 let row = rows_by_indent_size[&indent_size][0];
6829 let indent_end = Point::new(row, indent_size.len);
6830
6831 (indent_size, indent_end)
6832 };
6833
6834 let mut line_prefix = indent_size.chars().collect::<String>();
6835
6836 if let Some(comment_prefix) =
6837 buffer
6838 .language_scope_at(selection.head())
6839 .and_then(|language| {
6840 language
6841 .line_comment_prefixes()
6842 .iter()
6843 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6844 .cloned()
6845 })
6846 {
6847 line_prefix.push_str(&comment_prefix);
6848 should_rewrap = true;
6849 }
6850
6851 if !should_rewrap {
6852 continue;
6853 }
6854
6855 if selection.is_empty() {
6856 'expand_upwards: while start_row > 0 {
6857 let prev_row = start_row - 1;
6858 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6859 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6860 {
6861 start_row = prev_row;
6862 } else {
6863 break 'expand_upwards;
6864 }
6865 }
6866
6867 'expand_downwards: while end_row < buffer.max_point().row {
6868 let next_row = end_row + 1;
6869 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6870 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6871 {
6872 end_row = next_row;
6873 } else {
6874 break 'expand_downwards;
6875 }
6876 }
6877 }
6878
6879 let start = Point::new(start_row, 0);
6880 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6881 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6882 let Some(lines_without_prefixes) = selection_text
6883 .lines()
6884 .map(|line| {
6885 line.strip_prefix(&line_prefix)
6886 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6887 .ok_or_else(|| {
6888 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6889 })
6890 })
6891 .collect::<Result<Vec<_>, _>>()
6892 .log_err()
6893 else {
6894 continue;
6895 };
6896
6897 let wrap_column = buffer
6898 .settings_at(Point::new(start_row, 0), cx)
6899 .preferred_line_length as usize;
6900 let wrapped_text = wrap_with_prefix(
6901 line_prefix,
6902 lines_without_prefixes.join(" "),
6903 wrap_column,
6904 tab_size,
6905 );
6906
6907 // TODO: should always use char-based diff while still supporting cursor behavior that
6908 // matches vim.
6909 let diff = match is_vim_mode {
6910 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6911 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6912 };
6913 let mut offset = start.to_offset(&buffer);
6914 let mut moved_since_edit = true;
6915
6916 for change in diff.iter_all_changes() {
6917 let value = change.value();
6918 match change.tag() {
6919 ChangeTag::Equal => {
6920 offset += value.len();
6921 moved_since_edit = true;
6922 }
6923 ChangeTag::Delete => {
6924 let start = buffer.anchor_after(offset);
6925 let end = buffer.anchor_before(offset + value.len());
6926
6927 if moved_since_edit {
6928 edits.push((start..end, String::new()));
6929 } else {
6930 edits.last_mut().unwrap().0.end = end;
6931 }
6932
6933 offset += value.len();
6934 moved_since_edit = false;
6935 }
6936 ChangeTag::Insert => {
6937 if moved_since_edit {
6938 let anchor = buffer.anchor_after(offset);
6939 edits.push((anchor..anchor, value.to_string()));
6940 } else {
6941 edits.last_mut().unwrap().1.push_str(value);
6942 }
6943
6944 moved_since_edit = false;
6945 }
6946 }
6947 }
6948
6949 rewrapped_row_ranges.push(start_row..=end_row);
6950 }
6951
6952 self.buffer
6953 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6954 }
6955
6956 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6957 let mut text = String::new();
6958 let buffer = self.buffer.read(cx).snapshot(cx);
6959 let mut selections = self.selections.all::<Point>(cx);
6960 let mut clipboard_selections = Vec::with_capacity(selections.len());
6961 {
6962 let max_point = buffer.max_point();
6963 let mut is_first = true;
6964 for selection in &mut selections {
6965 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6966 if is_entire_line {
6967 selection.start = Point::new(selection.start.row, 0);
6968 if !selection.is_empty() && selection.end.column == 0 {
6969 selection.end = cmp::min(max_point, selection.end);
6970 } else {
6971 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6972 }
6973 selection.goal = SelectionGoal::None;
6974 }
6975 if is_first {
6976 is_first = false;
6977 } else {
6978 text += "\n";
6979 }
6980 let mut len = 0;
6981 for chunk in buffer.text_for_range(selection.start..selection.end) {
6982 text.push_str(chunk);
6983 len += chunk.len();
6984 }
6985 clipboard_selections.push(ClipboardSelection {
6986 len,
6987 is_entire_line,
6988 first_line_indent: buffer
6989 .indent_size_for_line(MultiBufferRow(selection.start.row))
6990 .len,
6991 });
6992 }
6993 }
6994
6995 self.transact(cx, |this, cx| {
6996 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6997 s.select(selections);
6998 });
6999 this.insert("", cx);
7000 });
7001 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
7002 }
7003
7004 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7005 let item = self.cut_common(cx);
7006 cx.write_to_clipboard(item);
7007 }
7008
7009 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
7010 self.change_selections(None, cx, |s| {
7011 s.move_with(|snapshot, sel| {
7012 if sel.is_empty() {
7013 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
7014 }
7015 });
7016 });
7017 let item = self.cut_common(cx);
7018 cx.set_global(KillRing(item))
7019 }
7020
7021 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
7022 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
7023 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
7024 (kill_ring.text().to_string(), kill_ring.metadata_json())
7025 } else {
7026 return;
7027 }
7028 } else {
7029 return;
7030 };
7031 self.do_paste(&text, metadata, false, cx);
7032 }
7033
7034 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7035 let selections = self.selections.all::<Point>(cx);
7036 let buffer = self.buffer.read(cx).read(cx);
7037 let mut text = String::new();
7038
7039 let mut clipboard_selections = Vec::with_capacity(selections.len());
7040 {
7041 let max_point = buffer.max_point();
7042 let mut is_first = true;
7043 for selection in selections.iter() {
7044 let mut start = selection.start;
7045 let mut end = selection.end;
7046 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7047 if is_entire_line {
7048 start = Point::new(start.row, 0);
7049 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7050 }
7051 if is_first {
7052 is_first = false;
7053 } else {
7054 text += "\n";
7055 }
7056 let mut len = 0;
7057 for chunk in buffer.text_for_range(start..end) {
7058 text.push_str(chunk);
7059 len += chunk.len();
7060 }
7061 clipboard_selections.push(ClipboardSelection {
7062 len,
7063 is_entire_line,
7064 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7065 });
7066 }
7067 }
7068
7069 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7070 text,
7071 clipboard_selections,
7072 ));
7073 }
7074
7075 pub fn do_paste(
7076 &mut self,
7077 text: &String,
7078 clipboard_selections: Option<Vec<ClipboardSelection>>,
7079 handle_entire_lines: bool,
7080 cx: &mut ViewContext<Self>,
7081 ) {
7082 if self.read_only(cx) {
7083 return;
7084 }
7085
7086 let clipboard_text = Cow::Borrowed(text);
7087
7088 self.transact(cx, |this, cx| {
7089 if let Some(mut clipboard_selections) = clipboard_selections {
7090 let old_selections = this.selections.all::<usize>(cx);
7091 let all_selections_were_entire_line =
7092 clipboard_selections.iter().all(|s| s.is_entire_line);
7093 let first_selection_indent_column =
7094 clipboard_selections.first().map(|s| s.first_line_indent);
7095 if clipboard_selections.len() != old_selections.len() {
7096 clipboard_selections.drain(..);
7097 }
7098 let cursor_offset = this.selections.last::<usize>(cx).head();
7099 let mut auto_indent_on_paste = true;
7100
7101 this.buffer.update(cx, |buffer, cx| {
7102 let snapshot = buffer.read(cx);
7103 auto_indent_on_paste =
7104 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7105
7106 let mut start_offset = 0;
7107 let mut edits = Vec::new();
7108 let mut original_indent_columns = Vec::new();
7109 for (ix, selection) in old_selections.iter().enumerate() {
7110 let to_insert;
7111 let entire_line;
7112 let original_indent_column;
7113 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7114 let end_offset = start_offset + clipboard_selection.len;
7115 to_insert = &clipboard_text[start_offset..end_offset];
7116 entire_line = clipboard_selection.is_entire_line;
7117 start_offset = end_offset + 1;
7118 original_indent_column = Some(clipboard_selection.first_line_indent);
7119 } else {
7120 to_insert = clipboard_text.as_str();
7121 entire_line = all_selections_were_entire_line;
7122 original_indent_column = first_selection_indent_column
7123 }
7124
7125 // If the corresponding selection was empty when this slice of the
7126 // clipboard text was written, then the entire line containing the
7127 // selection was copied. If this selection is also currently empty,
7128 // then paste the line before the current line of the buffer.
7129 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7130 let column = selection.start.to_point(&snapshot).column as usize;
7131 let line_start = selection.start - column;
7132 line_start..line_start
7133 } else {
7134 selection.range()
7135 };
7136
7137 edits.push((range, to_insert));
7138 original_indent_columns.extend(original_indent_column);
7139 }
7140 drop(snapshot);
7141
7142 buffer.edit(
7143 edits,
7144 if auto_indent_on_paste {
7145 Some(AutoindentMode::Block {
7146 original_indent_columns,
7147 })
7148 } else {
7149 None
7150 },
7151 cx,
7152 );
7153 });
7154
7155 let selections = this.selections.all::<usize>(cx);
7156 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7157 } else {
7158 this.insert(&clipboard_text, cx);
7159 }
7160 });
7161 }
7162
7163 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7164 if let Some(item) = cx.read_from_clipboard() {
7165 let entries = item.entries();
7166
7167 match entries.first() {
7168 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7169 // of all the pasted entries.
7170 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7171 .do_paste(
7172 clipboard_string.text(),
7173 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7174 true,
7175 cx,
7176 ),
7177 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7178 }
7179 }
7180 }
7181
7182 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7183 if self.read_only(cx) {
7184 return;
7185 }
7186
7187 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7188 if let Some((selections, _)) =
7189 self.selection_history.transaction(transaction_id).cloned()
7190 {
7191 self.change_selections(None, cx, |s| {
7192 s.select_anchors(selections.to_vec());
7193 });
7194 }
7195 self.request_autoscroll(Autoscroll::fit(), cx);
7196 self.unmark_text(cx);
7197 self.refresh_inline_completion(true, false, cx);
7198 cx.emit(EditorEvent::Edited { transaction_id });
7199 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7200 }
7201 }
7202
7203 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7204 if self.read_only(cx) {
7205 return;
7206 }
7207
7208 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7209 if let Some((_, Some(selections))) =
7210 self.selection_history.transaction(transaction_id).cloned()
7211 {
7212 self.change_selections(None, cx, |s| {
7213 s.select_anchors(selections.to_vec());
7214 });
7215 }
7216 self.request_autoscroll(Autoscroll::fit(), cx);
7217 self.unmark_text(cx);
7218 self.refresh_inline_completion(true, false, cx);
7219 cx.emit(EditorEvent::Edited { transaction_id });
7220 }
7221 }
7222
7223 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7224 self.buffer
7225 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7226 }
7227
7228 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7229 self.buffer
7230 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7231 }
7232
7233 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7234 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7235 let line_mode = s.line_mode;
7236 s.move_with(|map, selection| {
7237 let cursor = if selection.is_empty() && !line_mode {
7238 movement::left(map, selection.start)
7239 } else {
7240 selection.start
7241 };
7242 selection.collapse_to(cursor, SelectionGoal::None);
7243 });
7244 })
7245 }
7246
7247 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7248 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7249 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7250 })
7251 }
7252
7253 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7254 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7255 let line_mode = s.line_mode;
7256 s.move_with(|map, selection| {
7257 let cursor = if selection.is_empty() && !line_mode {
7258 movement::right(map, selection.end)
7259 } else {
7260 selection.end
7261 };
7262 selection.collapse_to(cursor, SelectionGoal::None)
7263 });
7264 })
7265 }
7266
7267 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7268 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7269 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7270 })
7271 }
7272
7273 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7274 if self.take_rename(true, cx).is_some() {
7275 return;
7276 }
7277
7278 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7279 cx.propagate();
7280 return;
7281 }
7282
7283 let text_layout_details = &self.text_layout_details(cx);
7284 let selection_count = self.selections.count();
7285 let first_selection = self.selections.first_anchor();
7286
7287 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7288 let line_mode = s.line_mode;
7289 s.move_with(|map, selection| {
7290 if !selection.is_empty() && !line_mode {
7291 selection.goal = SelectionGoal::None;
7292 }
7293 let (cursor, goal) = movement::up(
7294 map,
7295 selection.start,
7296 selection.goal,
7297 false,
7298 text_layout_details,
7299 );
7300 selection.collapse_to(cursor, goal);
7301 });
7302 });
7303
7304 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7305 {
7306 cx.propagate();
7307 }
7308 }
7309
7310 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7311 if self.take_rename(true, cx).is_some() {
7312 return;
7313 }
7314
7315 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7316 cx.propagate();
7317 return;
7318 }
7319
7320 let text_layout_details = &self.text_layout_details(cx);
7321
7322 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7323 let line_mode = s.line_mode;
7324 s.move_with(|map, selection| {
7325 if !selection.is_empty() && !line_mode {
7326 selection.goal = SelectionGoal::None;
7327 }
7328 let (cursor, goal) = movement::up_by_rows(
7329 map,
7330 selection.start,
7331 action.lines,
7332 selection.goal,
7333 false,
7334 text_layout_details,
7335 );
7336 selection.collapse_to(cursor, goal);
7337 });
7338 })
7339 }
7340
7341 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7342 if self.take_rename(true, cx).is_some() {
7343 return;
7344 }
7345
7346 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7347 cx.propagate();
7348 return;
7349 }
7350
7351 let text_layout_details = &self.text_layout_details(cx);
7352
7353 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7354 let line_mode = s.line_mode;
7355 s.move_with(|map, selection| {
7356 if !selection.is_empty() && !line_mode {
7357 selection.goal = SelectionGoal::None;
7358 }
7359 let (cursor, goal) = movement::down_by_rows(
7360 map,
7361 selection.start,
7362 action.lines,
7363 selection.goal,
7364 false,
7365 text_layout_details,
7366 );
7367 selection.collapse_to(cursor, goal);
7368 });
7369 })
7370 }
7371
7372 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7373 let text_layout_details = &self.text_layout_details(cx);
7374 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7375 s.move_heads_with(|map, head, goal| {
7376 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7377 })
7378 })
7379 }
7380
7381 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7382 let text_layout_details = &self.text_layout_details(cx);
7383 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7384 s.move_heads_with(|map, head, goal| {
7385 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7386 })
7387 })
7388 }
7389
7390 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7391 let Some(row_count) = self.visible_row_count() else {
7392 return;
7393 };
7394
7395 let text_layout_details = &self.text_layout_details(cx);
7396
7397 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7398 s.move_heads_with(|map, head, goal| {
7399 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7400 })
7401 })
7402 }
7403
7404 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7405 if self.take_rename(true, cx).is_some() {
7406 return;
7407 }
7408
7409 if self
7410 .context_menu
7411 .borrow_mut()
7412 .as_mut()
7413 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7414 .unwrap_or(false)
7415 {
7416 return;
7417 }
7418
7419 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7420 cx.propagate();
7421 return;
7422 }
7423
7424 let Some(row_count) = self.visible_row_count() else {
7425 return;
7426 };
7427
7428 let autoscroll = if action.center_cursor {
7429 Autoscroll::center()
7430 } else {
7431 Autoscroll::fit()
7432 };
7433
7434 let text_layout_details = &self.text_layout_details(cx);
7435
7436 self.change_selections(Some(autoscroll), cx, |s| {
7437 let line_mode = s.line_mode;
7438 s.move_with(|map, selection| {
7439 if !selection.is_empty() && !line_mode {
7440 selection.goal = SelectionGoal::None;
7441 }
7442 let (cursor, goal) = movement::up_by_rows(
7443 map,
7444 selection.end,
7445 row_count,
7446 selection.goal,
7447 false,
7448 text_layout_details,
7449 );
7450 selection.collapse_to(cursor, goal);
7451 });
7452 });
7453 }
7454
7455 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7456 let text_layout_details = &self.text_layout_details(cx);
7457 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7458 s.move_heads_with(|map, head, goal| {
7459 movement::up(map, head, goal, false, text_layout_details)
7460 })
7461 })
7462 }
7463
7464 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7465 self.take_rename(true, cx);
7466
7467 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7468 cx.propagate();
7469 return;
7470 }
7471
7472 let text_layout_details = &self.text_layout_details(cx);
7473 let selection_count = self.selections.count();
7474 let first_selection = self.selections.first_anchor();
7475
7476 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7477 let line_mode = s.line_mode;
7478 s.move_with(|map, selection| {
7479 if !selection.is_empty() && !line_mode {
7480 selection.goal = SelectionGoal::None;
7481 }
7482 let (cursor, goal) = movement::down(
7483 map,
7484 selection.end,
7485 selection.goal,
7486 false,
7487 text_layout_details,
7488 );
7489 selection.collapse_to(cursor, goal);
7490 });
7491 });
7492
7493 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7494 {
7495 cx.propagate();
7496 }
7497 }
7498
7499 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7500 let Some(row_count) = self.visible_row_count() else {
7501 return;
7502 };
7503
7504 let text_layout_details = &self.text_layout_details(cx);
7505
7506 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7507 s.move_heads_with(|map, head, goal| {
7508 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7509 })
7510 })
7511 }
7512
7513 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7514 if self.take_rename(true, cx).is_some() {
7515 return;
7516 }
7517
7518 if self
7519 .context_menu
7520 .borrow_mut()
7521 .as_mut()
7522 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7523 .unwrap_or(false)
7524 {
7525 return;
7526 }
7527
7528 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7529 cx.propagate();
7530 return;
7531 }
7532
7533 let Some(row_count) = self.visible_row_count() else {
7534 return;
7535 };
7536
7537 let autoscroll = if action.center_cursor {
7538 Autoscroll::center()
7539 } else {
7540 Autoscroll::fit()
7541 };
7542
7543 let text_layout_details = &self.text_layout_details(cx);
7544 self.change_selections(Some(autoscroll), cx, |s| {
7545 let line_mode = s.line_mode;
7546 s.move_with(|map, selection| {
7547 if !selection.is_empty() && !line_mode {
7548 selection.goal = SelectionGoal::None;
7549 }
7550 let (cursor, goal) = movement::down_by_rows(
7551 map,
7552 selection.end,
7553 row_count,
7554 selection.goal,
7555 false,
7556 text_layout_details,
7557 );
7558 selection.collapse_to(cursor, goal);
7559 });
7560 });
7561 }
7562
7563 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7564 let text_layout_details = &self.text_layout_details(cx);
7565 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7566 s.move_heads_with(|map, head, goal| {
7567 movement::down(map, head, goal, false, text_layout_details)
7568 })
7569 });
7570 }
7571
7572 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7573 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7574 context_menu.select_first(self.completion_provider.as_deref(), cx);
7575 }
7576 }
7577
7578 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7579 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7580 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7581 }
7582 }
7583
7584 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7585 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7586 context_menu.select_next(self.completion_provider.as_deref(), cx);
7587 }
7588 }
7589
7590 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7591 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7592 context_menu.select_last(self.completion_provider.as_deref(), cx);
7593 }
7594 }
7595
7596 pub fn move_to_previous_word_start(
7597 &mut self,
7598 _: &MoveToPreviousWordStart,
7599 cx: &mut ViewContext<Self>,
7600 ) {
7601 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7602 s.move_cursors_with(|map, head, _| {
7603 (
7604 movement::previous_word_start(map, head),
7605 SelectionGoal::None,
7606 )
7607 });
7608 })
7609 }
7610
7611 pub fn move_to_previous_subword_start(
7612 &mut self,
7613 _: &MoveToPreviousSubwordStart,
7614 cx: &mut ViewContext<Self>,
7615 ) {
7616 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7617 s.move_cursors_with(|map, head, _| {
7618 (
7619 movement::previous_subword_start(map, head),
7620 SelectionGoal::None,
7621 )
7622 });
7623 })
7624 }
7625
7626 pub fn select_to_previous_word_start(
7627 &mut self,
7628 _: &SelectToPreviousWordStart,
7629 cx: &mut ViewContext<Self>,
7630 ) {
7631 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7632 s.move_heads_with(|map, head, _| {
7633 (
7634 movement::previous_word_start(map, head),
7635 SelectionGoal::None,
7636 )
7637 });
7638 })
7639 }
7640
7641 pub fn select_to_previous_subword_start(
7642 &mut self,
7643 _: &SelectToPreviousSubwordStart,
7644 cx: &mut ViewContext<Self>,
7645 ) {
7646 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7647 s.move_heads_with(|map, head, _| {
7648 (
7649 movement::previous_subword_start(map, head),
7650 SelectionGoal::None,
7651 )
7652 });
7653 })
7654 }
7655
7656 pub fn delete_to_previous_word_start(
7657 &mut self,
7658 action: &DeleteToPreviousWordStart,
7659 cx: &mut ViewContext<Self>,
7660 ) {
7661 self.transact(cx, |this, cx| {
7662 this.select_autoclose_pair(cx);
7663 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7664 let line_mode = s.line_mode;
7665 s.move_with(|map, selection| {
7666 if selection.is_empty() && !line_mode {
7667 let cursor = if action.ignore_newlines {
7668 movement::previous_word_start(map, selection.head())
7669 } else {
7670 movement::previous_word_start_or_newline(map, selection.head())
7671 };
7672 selection.set_head(cursor, SelectionGoal::None);
7673 }
7674 });
7675 });
7676 this.insert("", cx);
7677 });
7678 }
7679
7680 pub fn delete_to_previous_subword_start(
7681 &mut self,
7682 _: &DeleteToPreviousSubwordStart,
7683 cx: &mut ViewContext<Self>,
7684 ) {
7685 self.transact(cx, |this, cx| {
7686 this.select_autoclose_pair(cx);
7687 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7688 let line_mode = s.line_mode;
7689 s.move_with(|map, selection| {
7690 if selection.is_empty() && !line_mode {
7691 let cursor = movement::previous_subword_start(map, selection.head());
7692 selection.set_head(cursor, SelectionGoal::None);
7693 }
7694 });
7695 });
7696 this.insert("", cx);
7697 });
7698 }
7699
7700 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7701 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7702 s.move_cursors_with(|map, head, _| {
7703 (movement::next_word_end(map, head), SelectionGoal::None)
7704 });
7705 })
7706 }
7707
7708 pub fn move_to_next_subword_end(
7709 &mut self,
7710 _: &MoveToNextSubwordEnd,
7711 cx: &mut ViewContext<Self>,
7712 ) {
7713 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7714 s.move_cursors_with(|map, head, _| {
7715 (movement::next_subword_end(map, head), SelectionGoal::None)
7716 });
7717 })
7718 }
7719
7720 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7721 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7722 s.move_heads_with(|map, head, _| {
7723 (movement::next_word_end(map, head), SelectionGoal::None)
7724 });
7725 })
7726 }
7727
7728 pub fn select_to_next_subword_end(
7729 &mut self,
7730 _: &SelectToNextSubwordEnd,
7731 cx: &mut ViewContext<Self>,
7732 ) {
7733 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7734 s.move_heads_with(|map, head, _| {
7735 (movement::next_subword_end(map, head), SelectionGoal::None)
7736 });
7737 })
7738 }
7739
7740 pub fn delete_to_next_word_end(
7741 &mut self,
7742 action: &DeleteToNextWordEnd,
7743 cx: &mut ViewContext<Self>,
7744 ) {
7745 self.transact(cx, |this, cx| {
7746 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7747 let line_mode = s.line_mode;
7748 s.move_with(|map, selection| {
7749 if selection.is_empty() && !line_mode {
7750 let cursor = if action.ignore_newlines {
7751 movement::next_word_end(map, selection.head())
7752 } else {
7753 movement::next_word_end_or_newline(map, selection.head())
7754 };
7755 selection.set_head(cursor, SelectionGoal::None);
7756 }
7757 });
7758 });
7759 this.insert("", cx);
7760 });
7761 }
7762
7763 pub fn delete_to_next_subword_end(
7764 &mut self,
7765 _: &DeleteToNextSubwordEnd,
7766 cx: &mut ViewContext<Self>,
7767 ) {
7768 self.transact(cx, |this, cx| {
7769 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7770 s.move_with(|map, selection| {
7771 if selection.is_empty() {
7772 let cursor = movement::next_subword_end(map, selection.head());
7773 selection.set_head(cursor, SelectionGoal::None);
7774 }
7775 });
7776 });
7777 this.insert("", cx);
7778 });
7779 }
7780
7781 pub fn move_to_beginning_of_line(
7782 &mut self,
7783 action: &MoveToBeginningOfLine,
7784 cx: &mut ViewContext<Self>,
7785 ) {
7786 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7787 s.move_cursors_with(|map, head, _| {
7788 (
7789 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7790 SelectionGoal::None,
7791 )
7792 });
7793 })
7794 }
7795
7796 pub fn select_to_beginning_of_line(
7797 &mut self,
7798 action: &SelectToBeginningOfLine,
7799 cx: &mut ViewContext<Self>,
7800 ) {
7801 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7802 s.move_heads_with(|map, head, _| {
7803 (
7804 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7805 SelectionGoal::None,
7806 )
7807 });
7808 });
7809 }
7810
7811 pub fn delete_to_beginning_of_line(
7812 &mut self,
7813 _: &DeleteToBeginningOfLine,
7814 cx: &mut ViewContext<Self>,
7815 ) {
7816 self.transact(cx, |this, cx| {
7817 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7818 s.move_with(|_, selection| {
7819 selection.reversed = true;
7820 });
7821 });
7822
7823 this.select_to_beginning_of_line(
7824 &SelectToBeginningOfLine {
7825 stop_at_soft_wraps: false,
7826 },
7827 cx,
7828 );
7829 this.backspace(&Backspace, cx);
7830 });
7831 }
7832
7833 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7834 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7835 s.move_cursors_with(|map, head, _| {
7836 (
7837 movement::line_end(map, head, action.stop_at_soft_wraps),
7838 SelectionGoal::None,
7839 )
7840 });
7841 })
7842 }
7843
7844 pub fn select_to_end_of_line(
7845 &mut self,
7846 action: &SelectToEndOfLine,
7847 cx: &mut ViewContext<Self>,
7848 ) {
7849 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7850 s.move_heads_with(|map, head, _| {
7851 (
7852 movement::line_end(map, head, action.stop_at_soft_wraps),
7853 SelectionGoal::None,
7854 )
7855 });
7856 })
7857 }
7858
7859 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7860 self.transact(cx, |this, cx| {
7861 this.select_to_end_of_line(
7862 &SelectToEndOfLine {
7863 stop_at_soft_wraps: false,
7864 },
7865 cx,
7866 );
7867 this.delete(&Delete, cx);
7868 });
7869 }
7870
7871 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7872 self.transact(cx, |this, cx| {
7873 this.select_to_end_of_line(
7874 &SelectToEndOfLine {
7875 stop_at_soft_wraps: false,
7876 },
7877 cx,
7878 );
7879 this.cut(&Cut, cx);
7880 });
7881 }
7882
7883 pub fn move_to_start_of_paragraph(
7884 &mut self,
7885 _: &MoveToStartOfParagraph,
7886 cx: &mut ViewContext<Self>,
7887 ) {
7888 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7889 cx.propagate();
7890 return;
7891 }
7892
7893 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7894 s.move_with(|map, selection| {
7895 selection.collapse_to(
7896 movement::start_of_paragraph(map, selection.head(), 1),
7897 SelectionGoal::None,
7898 )
7899 });
7900 })
7901 }
7902
7903 pub fn move_to_end_of_paragraph(
7904 &mut self,
7905 _: &MoveToEndOfParagraph,
7906 cx: &mut ViewContext<Self>,
7907 ) {
7908 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7909 cx.propagate();
7910 return;
7911 }
7912
7913 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7914 s.move_with(|map, selection| {
7915 selection.collapse_to(
7916 movement::end_of_paragraph(map, selection.head(), 1),
7917 SelectionGoal::None,
7918 )
7919 });
7920 })
7921 }
7922
7923 pub fn select_to_start_of_paragraph(
7924 &mut self,
7925 _: &SelectToStartOfParagraph,
7926 cx: &mut ViewContext<Self>,
7927 ) {
7928 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7929 cx.propagate();
7930 return;
7931 }
7932
7933 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7934 s.move_heads_with(|map, head, _| {
7935 (
7936 movement::start_of_paragraph(map, head, 1),
7937 SelectionGoal::None,
7938 )
7939 });
7940 })
7941 }
7942
7943 pub fn select_to_end_of_paragraph(
7944 &mut self,
7945 _: &SelectToEndOfParagraph,
7946 cx: &mut ViewContext<Self>,
7947 ) {
7948 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7949 cx.propagate();
7950 return;
7951 }
7952
7953 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7954 s.move_heads_with(|map, head, _| {
7955 (
7956 movement::end_of_paragraph(map, head, 1),
7957 SelectionGoal::None,
7958 )
7959 });
7960 })
7961 }
7962
7963 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7964 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7965 cx.propagate();
7966 return;
7967 }
7968
7969 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7970 s.select_ranges(vec![0..0]);
7971 });
7972 }
7973
7974 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7975 let mut selection = self.selections.last::<Point>(cx);
7976 selection.set_head(Point::zero(), SelectionGoal::None);
7977
7978 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7979 s.select(vec![selection]);
7980 });
7981 }
7982
7983 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7984 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7985 cx.propagate();
7986 return;
7987 }
7988
7989 let cursor = self.buffer.read(cx).read(cx).len();
7990 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7991 s.select_ranges(vec![cursor..cursor])
7992 });
7993 }
7994
7995 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7996 self.nav_history = nav_history;
7997 }
7998
7999 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8000 self.nav_history.as_ref()
8001 }
8002
8003 fn push_to_nav_history(
8004 &mut self,
8005 cursor_anchor: Anchor,
8006 new_position: Option<Point>,
8007 cx: &mut ViewContext<Self>,
8008 ) {
8009 if let Some(nav_history) = self.nav_history.as_mut() {
8010 let buffer = self.buffer.read(cx).read(cx);
8011 let cursor_position = cursor_anchor.to_point(&buffer);
8012 let scroll_state = self.scroll_manager.anchor();
8013 let scroll_top_row = scroll_state.top_row(&buffer);
8014 drop(buffer);
8015
8016 if let Some(new_position) = new_position {
8017 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8018 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8019 return;
8020 }
8021 }
8022
8023 nav_history.push(
8024 Some(NavigationData {
8025 cursor_anchor,
8026 cursor_position,
8027 scroll_anchor: scroll_state,
8028 scroll_top_row,
8029 }),
8030 cx,
8031 );
8032 }
8033 }
8034
8035 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8036 let buffer = self.buffer.read(cx).snapshot(cx);
8037 let mut selection = self.selections.first::<usize>(cx);
8038 selection.set_head(buffer.len(), SelectionGoal::None);
8039 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8040 s.select(vec![selection]);
8041 });
8042 }
8043
8044 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8045 let end = self.buffer.read(cx).read(cx).len();
8046 self.change_selections(None, cx, |s| {
8047 s.select_ranges(vec![0..end]);
8048 });
8049 }
8050
8051 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8052 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8053 let mut selections = self.selections.all::<Point>(cx);
8054 let max_point = display_map.buffer_snapshot.max_point();
8055 for selection in &mut selections {
8056 let rows = selection.spanned_rows(true, &display_map);
8057 selection.start = Point::new(rows.start.0, 0);
8058 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8059 selection.reversed = false;
8060 }
8061 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8062 s.select(selections);
8063 });
8064 }
8065
8066 pub fn split_selection_into_lines(
8067 &mut self,
8068 _: &SplitSelectionIntoLines,
8069 cx: &mut ViewContext<Self>,
8070 ) {
8071 let mut to_unfold = Vec::new();
8072 let mut new_selection_ranges = Vec::new();
8073 {
8074 let selections = self.selections.all::<Point>(cx);
8075 let buffer = self.buffer.read(cx).read(cx);
8076 for selection in selections {
8077 for row in selection.start.row..selection.end.row {
8078 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8079 new_selection_ranges.push(cursor..cursor);
8080 }
8081 new_selection_ranges.push(selection.end..selection.end);
8082 to_unfold.push(selection.start..selection.end);
8083 }
8084 }
8085 self.unfold_ranges(&to_unfold, true, true, cx);
8086 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8087 s.select_ranges(new_selection_ranges);
8088 });
8089 }
8090
8091 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8092 self.add_selection(true, cx);
8093 }
8094
8095 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8096 self.add_selection(false, cx);
8097 }
8098
8099 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8100 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8101 let mut selections = self.selections.all::<Point>(cx);
8102 let text_layout_details = self.text_layout_details(cx);
8103 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8104 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8105 let range = oldest_selection.display_range(&display_map).sorted();
8106
8107 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8108 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8109 let positions = start_x.min(end_x)..start_x.max(end_x);
8110
8111 selections.clear();
8112 let mut stack = Vec::new();
8113 for row in range.start.row().0..=range.end.row().0 {
8114 if let Some(selection) = self.selections.build_columnar_selection(
8115 &display_map,
8116 DisplayRow(row),
8117 &positions,
8118 oldest_selection.reversed,
8119 &text_layout_details,
8120 ) {
8121 stack.push(selection.id);
8122 selections.push(selection);
8123 }
8124 }
8125
8126 if above {
8127 stack.reverse();
8128 }
8129
8130 AddSelectionsState { above, stack }
8131 });
8132
8133 let last_added_selection = *state.stack.last().unwrap();
8134 let mut new_selections = Vec::new();
8135 if above == state.above {
8136 let end_row = if above {
8137 DisplayRow(0)
8138 } else {
8139 display_map.max_point().row()
8140 };
8141
8142 'outer: for selection in selections {
8143 if selection.id == last_added_selection {
8144 let range = selection.display_range(&display_map).sorted();
8145 debug_assert_eq!(range.start.row(), range.end.row());
8146 let mut row = range.start.row();
8147 let positions =
8148 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8149 px(start)..px(end)
8150 } else {
8151 let start_x =
8152 display_map.x_for_display_point(range.start, &text_layout_details);
8153 let end_x =
8154 display_map.x_for_display_point(range.end, &text_layout_details);
8155 start_x.min(end_x)..start_x.max(end_x)
8156 };
8157
8158 while row != end_row {
8159 if above {
8160 row.0 -= 1;
8161 } else {
8162 row.0 += 1;
8163 }
8164
8165 if let Some(new_selection) = self.selections.build_columnar_selection(
8166 &display_map,
8167 row,
8168 &positions,
8169 selection.reversed,
8170 &text_layout_details,
8171 ) {
8172 state.stack.push(new_selection.id);
8173 if above {
8174 new_selections.push(new_selection);
8175 new_selections.push(selection);
8176 } else {
8177 new_selections.push(selection);
8178 new_selections.push(new_selection);
8179 }
8180
8181 continue 'outer;
8182 }
8183 }
8184 }
8185
8186 new_selections.push(selection);
8187 }
8188 } else {
8189 new_selections = selections;
8190 new_selections.retain(|s| s.id != last_added_selection);
8191 state.stack.pop();
8192 }
8193
8194 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8195 s.select(new_selections);
8196 });
8197 if state.stack.len() > 1 {
8198 self.add_selections_state = Some(state);
8199 }
8200 }
8201
8202 pub fn select_next_match_internal(
8203 &mut self,
8204 display_map: &DisplaySnapshot,
8205 replace_newest: bool,
8206 autoscroll: Option<Autoscroll>,
8207 cx: &mut ViewContext<Self>,
8208 ) -> Result<()> {
8209 fn select_next_match_ranges(
8210 this: &mut Editor,
8211 range: Range<usize>,
8212 replace_newest: bool,
8213 auto_scroll: Option<Autoscroll>,
8214 cx: &mut ViewContext<Editor>,
8215 ) {
8216 this.unfold_ranges(&[range.clone()], false, true, cx);
8217 this.change_selections(auto_scroll, cx, |s| {
8218 if replace_newest {
8219 s.delete(s.newest_anchor().id);
8220 }
8221 s.insert_range(range.clone());
8222 });
8223 }
8224
8225 let buffer = &display_map.buffer_snapshot;
8226 let mut selections = self.selections.all::<usize>(cx);
8227 if let Some(mut select_next_state) = self.select_next_state.take() {
8228 let query = &select_next_state.query;
8229 if !select_next_state.done {
8230 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8231 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8232 let mut next_selected_range = None;
8233
8234 let bytes_after_last_selection =
8235 buffer.bytes_in_range(last_selection.end..buffer.len());
8236 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8237 let query_matches = query
8238 .stream_find_iter(bytes_after_last_selection)
8239 .map(|result| (last_selection.end, result))
8240 .chain(
8241 query
8242 .stream_find_iter(bytes_before_first_selection)
8243 .map(|result| (0, result)),
8244 );
8245
8246 for (start_offset, query_match) in query_matches {
8247 let query_match = query_match.unwrap(); // can only fail due to I/O
8248 let offset_range =
8249 start_offset + query_match.start()..start_offset + query_match.end();
8250 let display_range = offset_range.start.to_display_point(display_map)
8251 ..offset_range.end.to_display_point(display_map);
8252
8253 if !select_next_state.wordwise
8254 || (!movement::is_inside_word(display_map, display_range.start)
8255 && !movement::is_inside_word(display_map, display_range.end))
8256 {
8257 // TODO: This is n^2, because we might check all the selections
8258 if !selections
8259 .iter()
8260 .any(|selection| selection.range().overlaps(&offset_range))
8261 {
8262 next_selected_range = Some(offset_range);
8263 break;
8264 }
8265 }
8266 }
8267
8268 if let Some(next_selected_range) = next_selected_range {
8269 select_next_match_ranges(
8270 self,
8271 next_selected_range,
8272 replace_newest,
8273 autoscroll,
8274 cx,
8275 );
8276 } else {
8277 select_next_state.done = true;
8278 }
8279 }
8280
8281 self.select_next_state = Some(select_next_state);
8282 } else {
8283 let mut only_carets = true;
8284 let mut same_text_selected = true;
8285 let mut selected_text = None;
8286
8287 let mut selections_iter = selections.iter().peekable();
8288 while let Some(selection) = selections_iter.next() {
8289 if selection.start != selection.end {
8290 only_carets = false;
8291 }
8292
8293 if same_text_selected {
8294 if selected_text.is_none() {
8295 selected_text =
8296 Some(buffer.text_for_range(selection.range()).collect::<String>());
8297 }
8298
8299 if let Some(next_selection) = selections_iter.peek() {
8300 if next_selection.range().len() == selection.range().len() {
8301 let next_selected_text = buffer
8302 .text_for_range(next_selection.range())
8303 .collect::<String>();
8304 if Some(next_selected_text) != selected_text {
8305 same_text_selected = false;
8306 selected_text = None;
8307 }
8308 } else {
8309 same_text_selected = false;
8310 selected_text = None;
8311 }
8312 }
8313 }
8314 }
8315
8316 if only_carets {
8317 for selection in &mut selections {
8318 let word_range = movement::surrounding_word(
8319 display_map,
8320 selection.start.to_display_point(display_map),
8321 );
8322 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8323 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8324 selection.goal = SelectionGoal::None;
8325 selection.reversed = false;
8326 select_next_match_ranges(
8327 self,
8328 selection.start..selection.end,
8329 replace_newest,
8330 autoscroll,
8331 cx,
8332 );
8333 }
8334
8335 if selections.len() == 1 {
8336 let selection = selections
8337 .last()
8338 .expect("ensured that there's only one selection");
8339 let query = buffer
8340 .text_for_range(selection.start..selection.end)
8341 .collect::<String>();
8342 let is_empty = query.is_empty();
8343 let select_state = SelectNextState {
8344 query: AhoCorasick::new(&[query])?,
8345 wordwise: true,
8346 done: is_empty,
8347 };
8348 self.select_next_state = Some(select_state);
8349 } else {
8350 self.select_next_state = None;
8351 }
8352 } else if let Some(selected_text) = selected_text {
8353 self.select_next_state = Some(SelectNextState {
8354 query: AhoCorasick::new(&[selected_text])?,
8355 wordwise: false,
8356 done: false,
8357 });
8358 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8359 }
8360 }
8361 Ok(())
8362 }
8363
8364 pub fn select_all_matches(
8365 &mut self,
8366 _action: &SelectAllMatches,
8367 cx: &mut ViewContext<Self>,
8368 ) -> Result<()> {
8369 self.push_to_selection_history();
8370 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8371
8372 self.select_next_match_internal(&display_map, false, None, cx)?;
8373 let Some(select_next_state) = self.select_next_state.as_mut() else {
8374 return Ok(());
8375 };
8376 if select_next_state.done {
8377 return Ok(());
8378 }
8379
8380 let mut new_selections = self.selections.all::<usize>(cx);
8381
8382 let buffer = &display_map.buffer_snapshot;
8383 let query_matches = select_next_state
8384 .query
8385 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8386
8387 for query_match in query_matches {
8388 let query_match = query_match.unwrap(); // can only fail due to I/O
8389 let offset_range = query_match.start()..query_match.end();
8390 let display_range = offset_range.start.to_display_point(&display_map)
8391 ..offset_range.end.to_display_point(&display_map);
8392
8393 if !select_next_state.wordwise
8394 || (!movement::is_inside_word(&display_map, display_range.start)
8395 && !movement::is_inside_word(&display_map, display_range.end))
8396 {
8397 self.selections.change_with(cx, |selections| {
8398 new_selections.push(Selection {
8399 id: selections.new_selection_id(),
8400 start: offset_range.start,
8401 end: offset_range.end,
8402 reversed: false,
8403 goal: SelectionGoal::None,
8404 });
8405 });
8406 }
8407 }
8408
8409 new_selections.sort_by_key(|selection| selection.start);
8410 let mut ix = 0;
8411 while ix + 1 < new_selections.len() {
8412 let current_selection = &new_selections[ix];
8413 let next_selection = &new_selections[ix + 1];
8414 if current_selection.range().overlaps(&next_selection.range()) {
8415 if current_selection.id < next_selection.id {
8416 new_selections.remove(ix + 1);
8417 } else {
8418 new_selections.remove(ix);
8419 }
8420 } else {
8421 ix += 1;
8422 }
8423 }
8424
8425 select_next_state.done = true;
8426 self.unfold_ranges(
8427 &new_selections
8428 .iter()
8429 .map(|selection| selection.range())
8430 .collect::<Vec<_>>(),
8431 false,
8432 false,
8433 cx,
8434 );
8435 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8436 selections.select(new_selections)
8437 });
8438
8439 Ok(())
8440 }
8441
8442 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8443 self.push_to_selection_history();
8444 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8445 self.select_next_match_internal(
8446 &display_map,
8447 action.replace_newest,
8448 Some(Autoscroll::newest()),
8449 cx,
8450 )?;
8451 Ok(())
8452 }
8453
8454 pub fn select_previous(
8455 &mut self,
8456 action: &SelectPrevious,
8457 cx: &mut ViewContext<Self>,
8458 ) -> Result<()> {
8459 self.push_to_selection_history();
8460 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8461 let buffer = &display_map.buffer_snapshot;
8462 let mut selections = self.selections.all::<usize>(cx);
8463 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8464 let query = &select_prev_state.query;
8465 if !select_prev_state.done {
8466 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8467 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8468 let mut next_selected_range = None;
8469 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8470 let bytes_before_last_selection =
8471 buffer.reversed_bytes_in_range(0..last_selection.start);
8472 let bytes_after_first_selection =
8473 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8474 let query_matches = query
8475 .stream_find_iter(bytes_before_last_selection)
8476 .map(|result| (last_selection.start, result))
8477 .chain(
8478 query
8479 .stream_find_iter(bytes_after_first_selection)
8480 .map(|result| (buffer.len(), result)),
8481 );
8482 for (end_offset, query_match) in query_matches {
8483 let query_match = query_match.unwrap(); // can only fail due to I/O
8484 let offset_range =
8485 end_offset - query_match.end()..end_offset - query_match.start();
8486 let display_range = offset_range.start.to_display_point(&display_map)
8487 ..offset_range.end.to_display_point(&display_map);
8488
8489 if !select_prev_state.wordwise
8490 || (!movement::is_inside_word(&display_map, display_range.start)
8491 && !movement::is_inside_word(&display_map, display_range.end))
8492 {
8493 next_selected_range = Some(offset_range);
8494 break;
8495 }
8496 }
8497
8498 if let Some(next_selected_range) = next_selected_range {
8499 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8500 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8501 if action.replace_newest {
8502 s.delete(s.newest_anchor().id);
8503 }
8504 s.insert_range(next_selected_range);
8505 });
8506 } else {
8507 select_prev_state.done = true;
8508 }
8509 }
8510
8511 self.select_prev_state = Some(select_prev_state);
8512 } else {
8513 let mut only_carets = true;
8514 let mut same_text_selected = true;
8515 let mut selected_text = None;
8516
8517 let mut selections_iter = selections.iter().peekable();
8518 while let Some(selection) = selections_iter.next() {
8519 if selection.start != selection.end {
8520 only_carets = false;
8521 }
8522
8523 if same_text_selected {
8524 if selected_text.is_none() {
8525 selected_text =
8526 Some(buffer.text_for_range(selection.range()).collect::<String>());
8527 }
8528
8529 if let Some(next_selection) = selections_iter.peek() {
8530 if next_selection.range().len() == selection.range().len() {
8531 let next_selected_text = buffer
8532 .text_for_range(next_selection.range())
8533 .collect::<String>();
8534 if Some(next_selected_text) != selected_text {
8535 same_text_selected = false;
8536 selected_text = None;
8537 }
8538 } else {
8539 same_text_selected = false;
8540 selected_text = None;
8541 }
8542 }
8543 }
8544 }
8545
8546 if only_carets {
8547 for selection in &mut selections {
8548 let word_range = movement::surrounding_word(
8549 &display_map,
8550 selection.start.to_display_point(&display_map),
8551 );
8552 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8553 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8554 selection.goal = SelectionGoal::None;
8555 selection.reversed = false;
8556 }
8557 if selections.len() == 1 {
8558 let selection = selections
8559 .last()
8560 .expect("ensured that there's only one selection");
8561 let query = buffer
8562 .text_for_range(selection.start..selection.end)
8563 .collect::<String>();
8564 let is_empty = query.is_empty();
8565 let select_state = SelectNextState {
8566 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8567 wordwise: true,
8568 done: is_empty,
8569 };
8570 self.select_prev_state = Some(select_state);
8571 } else {
8572 self.select_prev_state = None;
8573 }
8574
8575 self.unfold_ranges(
8576 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8577 false,
8578 true,
8579 cx,
8580 );
8581 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8582 s.select(selections);
8583 });
8584 } else if let Some(selected_text) = selected_text {
8585 self.select_prev_state = Some(SelectNextState {
8586 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8587 wordwise: false,
8588 done: false,
8589 });
8590 self.select_previous(action, cx)?;
8591 }
8592 }
8593 Ok(())
8594 }
8595
8596 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8597 if self.read_only(cx) {
8598 return;
8599 }
8600 let text_layout_details = &self.text_layout_details(cx);
8601 self.transact(cx, |this, cx| {
8602 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8603 let mut edits = Vec::new();
8604 let mut selection_edit_ranges = Vec::new();
8605 let mut last_toggled_row = None;
8606 let snapshot = this.buffer.read(cx).read(cx);
8607 let empty_str: Arc<str> = Arc::default();
8608 let mut suffixes_inserted = Vec::new();
8609 let ignore_indent = action.ignore_indent;
8610
8611 fn comment_prefix_range(
8612 snapshot: &MultiBufferSnapshot,
8613 row: MultiBufferRow,
8614 comment_prefix: &str,
8615 comment_prefix_whitespace: &str,
8616 ignore_indent: bool,
8617 ) -> Range<Point> {
8618 let indent_size = if ignore_indent {
8619 0
8620 } else {
8621 snapshot.indent_size_for_line(row).len
8622 };
8623
8624 let start = Point::new(row.0, indent_size);
8625
8626 let mut line_bytes = snapshot
8627 .bytes_in_range(start..snapshot.max_point())
8628 .flatten()
8629 .copied();
8630
8631 // If this line currently begins with the line comment prefix, then record
8632 // the range containing the prefix.
8633 if line_bytes
8634 .by_ref()
8635 .take(comment_prefix.len())
8636 .eq(comment_prefix.bytes())
8637 {
8638 // Include any whitespace that matches the comment prefix.
8639 let matching_whitespace_len = line_bytes
8640 .zip(comment_prefix_whitespace.bytes())
8641 .take_while(|(a, b)| a == b)
8642 .count() as u32;
8643 let end = Point::new(
8644 start.row,
8645 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8646 );
8647 start..end
8648 } else {
8649 start..start
8650 }
8651 }
8652
8653 fn comment_suffix_range(
8654 snapshot: &MultiBufferSnapshot,
8655 row: MultiBufferRow,
8656 comment_suffix: &str,
8657 comment_suffix_has_leading_space: bool,
8658 ) -> Range<Point> {
8659 let end = Point::new(row.0, snapshot.line_len(row));
8660 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8661
8662 let mut line_end_bytes = snapshot
8663 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8664 .flatten()
8665 .copied();
8666
8667 let leading_space_len = if suffix_start_column > 0
8668 && line_end_bytes.next() == Some(b' ')
8669 && comment_suffix_has_leading_space
8670 {
8671 1
8672 } else {
8673 0
8674 };
8675
8676 // If this line currently begins with the line comment prefix, then record
8677 // the range containing the prefix.
8678 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8679 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8680 start..end
8681 } else {
8682 end..end
8683 }
8684 }
8685
8686 // TODO: Handle selections that cross excerpts
8687 for selection in &mut selections {
8688 let start_column = snapshot
8689 .indent_size_for_line(MultiBufferRow(selection.start.row))
8690 .len;
8691 let language = if let Some(language) =
8692 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8693 {
8694 language
8695 } else {
8696 continue;
8697 };
8698
8699 selection_edit_ranges.clear();
8700
8701 // If multiple selections contain a given row, avoid processing that
8702 // row more than once.
8703 let mut start_row = MultiBufferRow(selection.start.row);
8704 if last_toggled_row == Some(start_row) {
8705 start_row = start_row.next_row();
8706 }
8707 let end_row =
8708 if selection.end.row > selection.start.row && selection.end.column == 0 {
8709 MultiBufferRow(selection.end.row - 1)
8710 } else {
8711 MultiBufferRow(selection.end.row)
8712 };
8713 last_toggled_row = Some(end_row);
8714
8715 if start_row > end_row {
8716 continue;
8717 }
8718
8719 // If the language has line comments, toggle those.
8720 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8721
8722 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8723 if ignore_indent {
8724 full_comment_prefixes = full_comment_prefixes
8725 .into_iter()
8726 .map(|s| Arc::from(s.trim_end()))
8727 .collect();
8728 }
8729
8730 if !full_comment_prefixes.is_empty() {
8731 let first_prefix = full_comment_prefixes
8732 .first()
8733 .expect("prefixes is non-empty");
8734 let prefix_trimmed_lengths = full_comment_prefixes
8735 .iter()
8736 .map(|p| p.trim_end_matches(' ').len())
8737 .collect::<SmallVec<[usize; 4]>>();
8738
8739 let mut all_selection_lines_are_comments = true;
8740
8741 for row in start_row.0..=end_row.0 {
8742 let row = MultiBufferRow(row);
8743 if start_row < end_row && snapshot.is_line_blank(row) {
8744 continue;
8745 }
8746
8747 let prefix_range = full_comment_prefixes
8748 .iter()
8749 .zip(prefix_trimmed_lengths.iter().copied())
8750 .map(|(prefix, trimmed_prefix_len)| {
8751 comment_prefix_range(
8752 snapshot.deref(),
8753 row,
8754 &prefix[..trimmed_prefix_len],
8755 &prefix[trimmed_prefix_len..],
8756 ignore_indent,
8757 )
8758 })
8759 .max_by_key(|range| range.end.column - range.start.column)
8760 .expect("prefixes is non-empty");
8761
8762 if prefix_range.is_empty() {
8763 all_selection_lines_are_comments = false;
8764 }
8765
8766 selection_edit_ranges.push(prefix_range);
8767 }
8768
8769 if all_selection_lines_are_comments {
8770 edits.extend(
8771 selection_edit_ranges
8772 .iter()
8773 .cloned()
8774 .map(|range| (range, empty_str.clone())),
8775 );
8776 } else {
8777 let min_column = selection_edit_ranges
8778 .iter()
8779 .map(|range| range.start.column)
8780 .min()
8781 .unwrap_or(0);
8782 edits.extend(selection_edit_ranges.iter().map(|range| {
8783 let position = Point::new(range.start.row, min_column);
8784 (position..position, first_prefix.clone())
8785 }));
8786 }
8787 } else if let Some((full_comment_prefix, comment_suffix)) =
8788 language.block_comment_delimiters()
8789 {
8790 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8791 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8792 let prefix_range = comment_prefix_range(
8793 snapshot.deref(),
8794 start_row,
8795 comment_prefix,
8796 comment_prefix_whitespace,
8797 ignore_indent,
8798 );
8799 let suffix_range = comment_suffix_range(
8800 snapshot.deref(),
8801 end_row,
8802 comment_suffix.trim_start_matches(' '),
8803 comment_suffix.starts_with(' '),
8804 );
8805
8806 if prefix_range.is_empty() || suffix_range.is_empty() {
8807 edits.push((
8808 prefix_range.start..prefix_range.start,
8809 full_comment_prefix.clone(),
8810 ));
8811 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8812 suffixes_inserted.push((end_row, comment_suffix.len()));
8813 } else {
8814 edits.push((prefix_range, empty_str.clone()));
8815 edits.push((suffix_range, empty_str.clone()));
8816 }
8817 } else {
8818 continue;
8819 }
8820 }
8821
8822 drop(snapshot);
8823 this.buffer.update(cx, |buffer, cx| {
8824 buffer.edit(edits, None, cx);
8825 });
8826
8827 // Adjust selections so that they end before any comment suffixes that
8828 // were inserted.
8829 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8830 let mut selections = this.selections.all::<Point>(cx);
8831 let snapshot = this.buffer.read(cx).read(cx);
8832 for selection in &mut selections {
8833 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8834 match row.cmp(&MultiBufferRow(selection.end.row)) {
8835 Ordering::Less => {
8836 suffixes_inserted.next();
8837 continue;
8838 }
8839 Ordering::Greater => break,
8840 Ordering::Equal => {
8841 if selection.end.column == snapshot.line_len(row) {
8842 if selection.is_empty() {
8843 selection.start.column -= suffix_len as u32;
8844 }
8845 selection.end.column -= suffix_len as u32;
8846 }
8847 break;
8848 }
8849 }
8850 }
8851 }
8852
8853 drop(snapshot);
8854 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8855
8856 let selections = this.selections.all::<Point>(cx);
8857 let selections_on_single_row = selections.windows(2).all(|selections| {
8858 selections[0].start.row == selections[1].start.row
8859 && selections[0].end.row == selections[1].end.row
8860 && selections[0].start.row == selections[0].end.row
8861 });
8862 let selections_selecting = selections
8863 .iter()
8864 .any(|selection| selection.start != selection.end);
8865 let advance_downwards = action.advance_downwards
8866 && selections_on_single_row
8867 && !selections_selecting
8868 && !matches!(this.mode, EditorMode::SingleLine { .. });
8869
8870 if advance_downwards {
8871 let snapshot = this.buffer.read(cx).snapshot(cx);
8872
8873 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8874 s.move_cursors_with(|display_snapshot, display_point, _| {
8875 let mut point = display_point.to_point(display_snapshot);
8876 point.row += 1;
8877 point = snapshot.clip_point(point, Bias::Left);
8878 let display_point = point.to_display_point(display_snapshot);
8879 let goal = SelectionGoal::HorizontalPosition(
8880 display_snapshot
8881 .x_for_display_point(display_point, text_layout_details)
8882 .into(),
8883 );
8884 (display_point, goal)
8885 })
8886 });
8887 }
8888 });
8889 }
8890
8891 pub fn select_enclosing_symbol(
8892 &mut self,
8893 _: &SelectEnclosingSymbol,
8894 cx: &mut ViewContext<Self>,
8895 ) {
8896 let buffer = self.buffer.read(cx).snapshot(cx);
8897 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8898
8899 fn update_selection(
8900 selection: &Selection<usize>,
8901 buffer_snap: &MultiBufferSnapshot,
8902 ) -> Option<Selection<usize>> {
8903 let cursor = selection.head();
8904 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8905 for symbol in symbols.iter().rev() {
8906 let start = symbol.range.start.to_offset(buffer_snap);
8907 let end = symbol.range.end.to_offset(buffer_snap);
8908 let new_range = start..end;
8909 if start < selection.start || end > selection.end {
8910 return Some(Selection {
8911 id: selection.id,
8912 start: new_range.start,
8913 end: new_range.end,
8914 goal: SelectionGoal::None,
8915 reversed: selection.reversed,
8916 });
8917 }
8918 }
8919 None
8920 }
8921
8922 let mut selected_larger_symbol = false;
8923 let new_selections = old_selections
8924 .iter()
8925 .map(|selection| match update_selection(selection, &buffer) {
8926 Some(new_selection) => {
8927 if new_selection.range() != selection.range() {
8928 selected_larger_symbol = true;
8929 }
8930 new_selection
8931 }
8932 None => selection.clone(),
8933 })
8934 .collect::<Vec<_>>();
8935
8936 if selected_larger_symbol {
8937 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8938 s.select(new_selections);
8939 });
8940 }
8941 }
8942
8943 pub fn select_larger_syntax_node(
8944 &mut self,
8945 _: &SelectLargerSyntaxNode,
8946 cx: &mut ViewContext<Self>,
8947 ) {
8948 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8949 let buffer = self.buffer.read(cx).snapshot(cx);
8950 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8951
8952 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8953 let mut selected_larger_node = false;
8954 let new_selections = old_selections
8955 .iter()
8956 .map(|selection| {
8957 let old_range = selection.start..selection.end;
8958 let mut new_range = old_range.clone();
8959 let mut new_node = None;
8960 while let Some((node, containing_range)) = buffer.syntax_ancestor(new_range.clone())
8961 {
8962 new_node = Some(node);
8963 new_range = containing_range;
8964 if !display_map.intersects_fold(new_range.start)
8965 && !display_map.intersects_fold(new_range.end)
8966 {
8967 break;
8968 }
8969 }
8970
8971 if let Some(node) = new_node {
8972 // Log the ancestor, to support using this action as a way to explore TreeSitter
8973 // nodes. Parent and grandparent are also logged because this operation will not
8974 // visit nodes that have the same range as their parent.
8975 log::info!("Node: {node:?}");
8976 let parent = node.parent();
8977 log::info!("Parent: {parent:?}");
8978 let grandparent = parent.and_then(|x| x.parent());
8979 log::info!("Grandparent: {grandparent:?}");
8980 }
8981
8982 selected_larger_node |= new_range != old_range;
8983 Selection {
8984 id: selection.id,
8985 start: new_range.start,
8986 end: new_range.end,
8987 goal: SelectionGoal::None,
8988 reversed: selection.reversed,
8989 }
8990 })
8991 .collect::<Vec<_>>();
8992
8993 if selected_larger_node {
8994 stack.push(old_selections);
8995 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8996 s.select(new_selections);
8997 });
8998 }
8999 self.select_larger_syntax_node_stack = stack;
9000 }
9001
9002 pub fn select_smaller_syntax_node(
9003 &mut self,
9004 _: &SelectSmallerSyntaxNode,
9005 cx: &mut ViewContext<Self>,
9006 ) {
9007 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9008 if let Some(selections) = stack.pop() {
9009 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9010 s.select(selections.to_vec());
9011 });
9012 }
9013 self.select_larger_syntax_node_stack = stack;
9014 }
9015
9016 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9017 if !EditorSettings::get_global(cx).gutter.runnables {
9018 self.clear_tasks();
9019 return Task::ready(());
9020 }
9021 let project = self.project.as_ref().map(Model::downgrade);
9022 cx.spawn(|this, mut cx| async move {
9023 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
9024 let Some(project) = project.and_then(|p| p.upgrade()) else {
9025 return;
9026 };
9027 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9028 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9029 }) else {
9030 return;
9031 };
9032
9033 let hide_runnables = project
9034 .update(&mut cx, |project, cx| {
9035 // Do not display any test indicators in non-dev server remote projects.
9036 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9037 })
9038 .unwrap_or(true);
9039 if hide_runnables {
9040 return;
9041 }
9042 let new_rows =
9043 cx.background_executor()
9044 .spawn({
9045 let snapshot = display_snapshot.clone();
9046 async move {
9047 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9048 }
9049 })
9050 .await;
9051 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9052
9053 this.update(&mut cx, |this, _| {
9054 this.clear_tasks();
9055 for (key, value) in rows {
9056 this.insert_tasks(key, value);
9057 }
9058 })
9059 .ok();
9060 })
9061 }
9062 fn fetch_runnable_ranges(
9063 snapshot: &DisplaySnapshot,
9064 range: Range<Anchor>,
9065 ) -> Vec<language::RunnableRange> {
9066 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9067 }
9068
9069 fn runnable_rows(
9070 project: Model<Project>,
9071 snapshot: DisplaySnapshot,
9072 runnable_ranges: Vec<RunnableRange>,
9073 mut cx: AsyncWindowContext,
9074 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9075 runnable_ranges
9076 .into_iter()
9077 .filter_map(|mut runnable| {
9078 let tasks = cx
9079 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9080 .ok()?;
9081 if tasks.is_empty() {
9082 return None;
9083 }
9084
9085 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9086
9087 let row = snapshot
9088 .buffer_snapshot
9089 .buffer_line_for_row(MultiBufferRow(point.row))?
9090 .1
9091 .start
9092 .row;
9093
9094 let context_range =
9095 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9096 Some((
9097 (runnable.buffer_id, row),
9098 RunnableTasks {
9099 templates: tasks,
9100 offset: MultiBufferOffset(runnable.run_range.start),
9101 context_range,
9102 column: point.column,
9103 extra_variables: runnable.extra_captures,
9104 },
9105 ))
9106 })
9107 .collect()
9108 }
9109
9110 fn templates_with_tags(
9111 project: &Model<Project>,
9112 runnable: &mut Runnable,
9113 cx: &WindowContext,
9114 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9115 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9116 let (worktree_id, file) = project
9117 .buffer_for_id(runnable.buffer, cx)
9118 .and_then(|buffer| buffer.read(cx).file())
9119 .map(|file| (file.worktree_id(cx), file.clone()))
9120 .unzip();
9121
9122 (
9123 project.task_store().read(cx).task_inventory().cloned(),
9124 worktree_id,
9125 file,
9126 )
9127 });
9128
9129 let tags = mem::take(&mut runnable.tags);
9130 let mut tags: Vec<_> = tags
9131 .into_iter()
9132 .flat_map(|tag| {
9133 let tag = tag.0.clone();
9134 inventory
9135 .as_ref()
9136 .into_iter()
9137 .flat_map(|inventory| {
9138 inventory.read(cx).list_tasks(
9139 file.clone(),
9140 Some(runnable.language.clone()),
9141 worktree_id,
9142 cx,
9143 )
9144 })
9145 .filter(move |(_, template)| {
9146 template.tags.iter().any(|source_tag| source_tag == &tag)
9147 })
9148 })
9149 .sorted_by_key(|(kind, _)| kind.to_owned())
9150 .collect();
9151 if let Some((leading_tag_source, _)) = tags.first() {
9152 // Strongest source wins; if we have worktree tag binding, prefer that to
9153 // global and language bindings;
9154 // if we have a global binding, prefer that to language binding.
9155 let first_mismatch = tags
9156 .iter()
9157 .position(|(tag_source, _)| tag_source != leading_tag_source);
9158 if let Some(index) = first_mismatch {
9159 tags.truncate(index);
9160 }
9161 }
9162
9163 tags
9164 }
9165
9166 pub fn move_to_enclosing_bracket(
9167 &mut self,
9168 _: &MoveToEnclosingBracket,
9169 cx: &mut ViewContext<Self>,
9170 ) {
9171 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9172 s.move_offsets_with(|snapshot, selection| {
9173 let Some(enclosing_bracket_ranges) =
9174 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9175 else {
9176 return;
9177 };
9178
9179 let mut best_length = usize::MAX;
9180 let mut best_inside = false;
9181 let mut best_in_bracket_range = false;
9182 let mut best_destination = None;
9183 for (open, close) in enclosing_bracket_ranges {
9184 let close = close.to_inclusive();
9185 let length = close.end() - open.start;
9186 let inside = selection.start >= open.end && selection.end <= *close.start();
9187 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9188 || close.contains(&selection.head());
9189
9190 // If best is next to a bracket and current isn't, skip
9191 if !in_bracket_range && best_in_bracket_range {
9192 continue;
9193 }
9194
9195 // Prefer smaller lengths unless best is inside and current isn't
9196 if length > best_length && (best_inside || !inside) {
9197 continue;
9198 }
9199
9200 best_length = length;
9201 best_inside = inside;
9202 best_in_bracket_range = in_bracket_range;
9203 best_destination = Some(
9204 if close.contains(&selection.start) && close.contains(&selection.end) {
9205 if inside {
9206 open.end
9207 } else {
9208 open.start
9209 }
9210 } else if inside {
9211 *close.start()
9212 } else {
9213 *close.end()
9214 },
9215 );
9216 }
9217
9218 if let Some(destination) = best_destination {
9219 selection.collapse_to(destination, SelectionGoal::None);
9220 }
9221 })
9222 });
9223 }
9224
9225 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9226 self.end_selection(cx);
9227 self.selection_history.mode = SelectionHistoryMode::Undoing;
9228 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9229 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9230 self.select_next_state = entry.select_next_state;
9231 self.select_prev_state = entry.select_prev_state;
9232 self.add_selections_state = entry.add_selections_state;
9233 self.request_autoscroll(Autoscroll::newest(), cx);
9234 }
9235 self.selection_history.mode = SelectionHistoryMode::Normal;
9236 }
9237
9238 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9239 self.end_selection(cx);
9240 self.selection_history.mode = SelectionHistoryMode::Redoing;
9241 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9242 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9243 self.select_next_state = entry.select_next_state;
9244 self.select_prev_state = entry.select_prev_state;
9245 self.add_selections_state = entry.add_selections_state;
9246 self.request_autoscroll(Autoscroll::newest(), cx);
9247 }
9248 self.selection_history.mode = SelectionHistoryMode::Normal;
9249 }
9250
9251 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9252 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9253 }
9254
9255 pub fn expand_excerpts_down(
9256 &mut self,
9257 action: &ExpandExcerptsDown,
9258 cx: &mut ViewContext<Self>,
9259 ) {
9260 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9261 }
9262
9263 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9264 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9265 }
9266
9267 pub fn expand_excerpts_for_direction(
9268 &mut self,
9269 lines: u32,
9270 direction: ExpandExcerptDirection,
9271 cx: &mut ViewContext<Self>,
9272 ) {
9273 let selections = self.selections.disjoint_anchors();
9274
9275 let lines = if lines == 0 {
9276 EditorSettings::get_global(cx).expand_excerpt_lines
9277 } else {
9278 lines
9279 };
9280
9281 self.buffer.update(cx, |buffer, cx| {
9282 let snapshot = buffer.snapshot(cx);
9283 let mut excerpt_ids = selections
9284 .iter()
9285 .flat_map(|selection| {
9286 snapshot
9287 .excerpts_for_range(selection.range())
9288 .map(|excerpt| excerpt.id())
9289 })
9290 .collect::<Vec<_>>();
9291 excerpt_ids.sort();
9292 excerpt_ids.dedup();
9293 buffer.expand_excerpts(excerpt_ids, lines, direction, cx)
9294 })
9295 }
9296
9297 pub fn expand_excerpt(
9298 &mut self,
9299 excerpt: ExcerptId,
9300 direction: ExpandExcerptDirection,
9301 cx: &mut ViewContext<Self>,
9302 ) {
9303 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9304 self.buffer.update(cx, |buffer, cx| {
9305 buffer.expand_excerpts([excerpt], lines, direction, cx)
9306 })
9307 }
9308
9309 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9310 self.go_to_diagnostic_impl(Direction::Next, cx)
9311 }
9312
9313 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9314 self.go_to_diagnostic_impl(Direction::Prev, cx)
9315 }
9316
9317 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9318 let buffer = self.buffer.read(cx).snapshot(cx);
9319 let selection = self.selections.newest::<usize>(cx);
9320
9321 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9322 if direction == Direction::Next {
9323 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9324 self.activate_diagnostics(popover.group_id(), cx);
9325 if let Some(active_diagnostics) = self.active_diagnostics.as_ref() {
9326 let primary_range_start = active_diagnostics.primary_range.start;
9327 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9328 let mut new_selection = s.newest_anchor().clone();
9329 new_selection.collapse_to(primary_range_start, SelectionGoal::None);
9330 s.select_anchors(vec![new_selection.clone()]);
9331 });
9332 self.refresh_inline_completion(false, true, cx);
9333 }
9334 return;
9335 }
9336 }
9337
9338 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9339 active_diagnostics
9340 .primary_range
9341 .to_offset(&buffer)
9342 .to_inclusive()
9343 });
9344 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9345 if active_primary_range.contains(&selection.head()) {
9346 *active_primary_range.start()
9347 } else {
9348 selection.head()
9349 }
9350 } else {
9351 selection.head()
9352 };
9353 let snapshot = self.snapshot(cx);
9354 loop {
9355 let diagnostics = if direction == Direction::Prev {
9356 buffer.diagnostics_in_range(0..search_start, true)
9357 } else {
9358 buffer.diagnostics_in_range(search_start..buffer.len(), false)
9359 }
9360 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9361 let search_start_anchor = buffer.anchor_after(search_start);
9362 let group = diagnostics
9363 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9364 // be sorted in a stable way
9365 // skip until we are at current active diagnostic, if it exists
9366 .skip_while(|entry| {
9367 let is_in_range = match direction {
9368 Direction::Prev => {
9369 entry.range.start.cmp(&search_start_anchor, &buffer).is_ge()
9370 }
9371 Direction::Next => {
9372 entry.range.start.cmp(&search_start_anchor, &buffer).is_le()
9373 }
9374 };
9375 is_in_range
9376 && self
9377 .active_diagnostics
9378 .as_ref()
9379 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9380 })
9381 .find_map(|entry| {
9382 if entry.diagnostic.is_primary
9383 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9384 && !(entry.range.start == entry.range.end)
9385 // if we match with the active diagnostic, skip it
9386 && Some(entry.diagnostic.group_id)
9387 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9388 {
9389 Some((entry.range, entry.diagnostic.group_id))
9390 } else {
9391 None
9392 }
9393 });
9394
9395 if let Some((primary_range, group_id)) = group {
9396 self.activate_diagnostics(group_id, cx);
9397 let primary_range = primary_range.to_offset(&buffer);
9398 if self.active_diagnostics.is_some() {
9399 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9400 s.select(vec![Selection {
9401 id: selection.id,
9402 start: primary_range.start,
9403 end: primary_range.start,
9404 reversed: false,
9405 goal: SelectionGoal::None,
9406 }]);
9407 });
9408 self.refresh_inline_completion(false, true, cx);
9409 }
9410 break;
9411 } else {
9412 // Cycle around to the start of the buffer, potentially moving back to the start of
9413 // the currently active diagnostic.
9414 active_primary_range.take();
9415 if direction == Direction::Prev {
9416 if search_start == buffer.len() {
9417 break;
9418 } else {
9419 search_start = buffer.len();
9420 }
9421 } else if search_start == 0 {
9422 break;
9423 } else {
9424 search_start = 0;
9425 }
9426 }
9427 }
9428 }
9429
9430 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9431 let snapshot = self.snapshot(cx);
9432 let selection = self.selections.newest::<Point>(cx);
9433 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9434 }
9435
9436 fn go_to_hunk_after_position(
9437 &mut self,
9438 snapshot: &EditorSnapshot,
9439 position: Point,
9440 cx: &mut ViewContext<Editor>,
9441 ) -> Option<MultiBufferDiffHunk> {
9442 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9443 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9444 snapshot,
9445 position,
9446 ix > 0,
9447 snapshot.diff_map.diff_hunks_in_range(
9448 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9449 &snapshot.buffer_snapshot,
9450 ),
9451 cx,
9452 ) {
9453 return Some(hunk);
9454 }
9455 }
9456 None
9457 }
9458
9459 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9460 let snapshot = self.snapshot(cx);
9461 let selection = self.selections.newest::<Point>(cx);
9462 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9463 }
9464
9465 fn go_to_hunk_before_position(
9466 &mut self,
9467 snapshot: &EditorSnapshot,
9468 position: Point,
9469 cx: &mut ViewContext<Editor>,
9470 ) -> Option<MultiBufferDiffHunk> {
9471 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9472 .into_iter()
9473 .enumerate()
9474 {
9475 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9476 snapshot,
9477 position,
9478 ix > 0,
9479 snapshot
9480 .diff_map
9481 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9482 cx,
9483 ) {
9484 return Some(hunk);
9485 }
9486 }
9487 None
9488 }
9489
9490 fn go_to_next_hunk_in_direction(
9491 &mut self,
9492 snapshot: &DisplaySnapshot,
9493 initial_point: Point,
9494 is_wrapped: bool,
9495 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9496 cx: &mut ViewContext<Editor>,
9497 ) -> Option<MultiBufferDiffHunk> {
9498 let display_point = initial_point.to_display_point(snapshot);
9499 let mut hunks = hunks
9500 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9501 .filter(|(display_hunk, _)| {
9502 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9503 })
9504 .dedup();
9505
9506 if let Some((display_hunk, hunk)) = hunks.next() {
9507 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9508 let row = display_hunk.start_display_row();
9509 let point = DisplayPoint::new(row, 0);
9510 s.select_display_ranges([point..point]);
9511 });
9512
9513 Some(hunk)
9514 } else {
9515 None
9516 }
9517 }
9518
9519 pub fn go_to_definition(
9520 &mut self,
9521 _: &GoToDefinition,
9522 cx: &mut ViewContext<Self>,
9523 ) -> Task<Result<Navigated>> {
9524 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9525 cx.spawn(|editor, mut cx| async move {
9526 if definition.await? == Navigated::Yes {
9527 return Ok(Navigated::Yes);
9528 }
9529 match editor.update(&mut cx, |editor, cx| {
9530 editor.find_all_references(&FindAllReferences, cx)
9531 })? {
9532 Some(references) => references.await,
9533 None => Ok(Navigated::No),
9534 }
9535 })
9536 }
9537
9538 pub fn go_to_declaration(
9539 &mut self,
9540 _: &GoToDeclaration,
9541 cx: &mut ViewContext<Self>,
9542 ) -> Task<Result<Navigated>> {
9543 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9544 }
9545
9546 pub fn go_to_declaration_split(
9547 &mut self,
9548 _: &GoToDeclaration,
9549 cx: &mut ViewContext<Self>,
9550 ) -> Task<Result<Navigated>> {
9551 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9552 }
9553
9554 pub fn go_to_implementation(
9555 &mut self,
9556 _: &GoToImplementation,
9557 cx: &mut ViewContext<Self>,
9558 ) -> Task<Result<Navigated>> {
9559 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9560 }
9561
9562 pub fn go_to_implementation_split(
9563 &mut self,
9564 _: &GoToImplementationSplit,
9565 cx: &mut ViewContext<Self>,
9566 ) -> Task<Result<Navigated>> {
9567 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9568 }
9569
9570 pub fn go_to_type_definition(
9571 &mut self,
9572 _: &GoToTypeDefinition,
9573 cx: &mut ViewContext<Self>,
9574 ) -> Task<Result<Navigated>> {
9575 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9576 }
9577
9578 pub fn go_to_definition_split(
9579 &mut self,
9580 _: &GoToDefinitionSplit,
9581 cx: &mut ViewContext<Self>,
9582 ) -> Task<Result<Navigated>> {
9583 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9584 }
9585
9586 pub fn go_to_type_definition_split(
9587 &mut self,
9588 _: &GoToTypeDefinitionSplit,
9589 cx: &mut ViewContext<Self>,
9590 ) -> Task<Result<Navigated>> {
9591 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9592 }
9593
9594 fn go_to_definition_of_kind(
9595 &mut self,
9596 kind: GotoDefinitionKind,
9597 split: bool,
9598 cx: &mut ViewContext<Self>,
9599 ) -> Task<Result<Navigated>> {
9600 let Some(provider) = self.semantics_provider.clone() else {
9601 return Task::ready(Ok(Navigated::No));
9602 };
9603 let head = self.selections.newest::<usize>(cx).head();
9604 let buffer = self.buffer.read(cx);
9605 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9606 text_anchor
9607 } else {
9608 return Task::ready(Ok(Navigated::No));
9609 };
9610
9611 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9612 return Task::ready(Ok(Navigated::No));
9613 };
9614
9615 cx.spawn(|editor, mut cx| async move {
9616 let definitions = definitions.await?;
9617 let navigated = editor
9618 .update(&mut cx, |editor, cx| {
9619 editor.navigate_to_hover_links(
9620 Some(kind),
9621 definitions
9622 .into_iter()
9623 .filter(|location| {
9624 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9625 })
9626 .map(HoverLink::Text)
9627 .collect::<Vec<_>>(),
9628 split,
9629 cx,
9630 )
9631 })?
9632 .await?;
9633 anyhow::Ok(navigated)
9634 })
9635 }
9636
9637 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9638 let selection = self.selections.newest_anchor();
9639 let head = selection.head();
9640 let tail = selection.tail();
9641
9642 let Some((buffer, start_position)) =
9643 self.buffer.read(cx).text_anchor_for_position(head, cx)
9644 else {
9645 return;
9646 };
9647
9648 let end_position = if head != tail {
9649 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9650 return;
9651 };
9652 Some(pos)
9653 } else {
9654 None
9655 };
9656
9657 let url_finder = cx.spawn(|editor, mut cx| async move {
9658 let url = if let Some(end_pos) = end_position {
9659 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9660 } else {
9661 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9662 };
9663
9664 if let Some(url) = url {
9665 editor.update(&mut cx, |_, cx| {
9666 cx.open_url(&url);
9667 })
9668 } else {
9669 Ok(())
9670 }
9671 });
9672
9673 url_finder.detach();
9674 }
9675
9676 pub fn open_selected_filename(&mut self, _: &OpenSelectedFilename, cx: &mut ViewContext<Self>) {
9677 let Some(workspace) = self.workspace() else {
9678 return;
9679 };
9680
9681 let position = self.selections.newest_anchor().head();
9682
9683 let Some((buffer, buffer_position)) =
9684 self.buffer.read(cx).text_anchor_for_position(position, cx)
9685 else {
9686 return;
9687 };
9688
9689 let project = self.project.clone();
9690
9691 cx.spawn(|_, mut cx| async move {
9692 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9693
9694 if let Some((_, path)) = result {
9695 workspace
9696 .update(&mut cx, |workspace, cx| {
9697 workspace.open_resolved_path(path, cx)
9698 })?
9699 .await?;
9700 }
9701 anyhow::Ok(())
9702 })
9703 .detach();
9704 }
9705
9706 pub(crate) fn navigate_to_hover_links(
9707 &mut self,
9708 kind: Option<GotoDefinitionKind>,
9709 mut definitions: Vec<HoverLink>,
9710 split: bool,
9711 cx: &mut ViewContext<Editor>,
9712 ) -> Task<Result<Navigated>> {
9713 // If there is one definition, just open it directly
9714 if definitions.len() == 1 {
9715 let definition = definitions.pop().unwrap();
9716
9717 enum TargetTaskResult {
9718 Location(Option<Location>),
9719 AlreadyNavigated,
9720 }
9721
9722 let target_task = match definition {
9723 HoverLink::Text(link) => {
9724 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9725 }
9726 HoverLink::InlayHint(lsp_location, server_id) => {
9727 let computation = self.compute_target_location(lsp_location, server_id, cx);
9728 cx.background_executor().spawn(async move {
9729 let location = computation.await?;
9730 Ok(TargetTaskResult::Location(location))
9731 })
9732 }
9733 HoverLink::Url(url) => {
9734 cx.open_url(&url);
9735 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9736 }
9737 HoverLink::File(path) => {
9738 if let Some(workspace) = self.workspace() {
9739 cx.spawn(|_, mut cx| async move {
9740 workspace
9741 .update(&mut cx, |workspace, cx| {
9742 workspace.open_resolved_path(path, cx)
9743 })?
9744 .await
9745 .map(|_| TargetTaskResult::AlreadyNavigated)
9746 })
9747 } else {
9748 Task::ready(Ok(TargetTaskResult::Location(None)))
9749 }
9750 }
9751 };
9752 cx.spawn(|editor, mut cx| async move {
9753 let target = match target_task.await.context("target resolution task")? {
9754 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9755 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9756 TargetTaskResult::Location(Some(target)) => target,
9757 };
9758
9759 editor.update(&mut cx, |editor, cx| {
9760 let Some(workspace) = editor.workspace() else {
9761 return Navigated::No;
9762 };
9763 let pane = workspace.read(cx).active_pane().clone();
9764
9765 let range = target.range.to_offset(target.buffer.read(cx));
9766 let range = editor.range_for_match(&range);
9767
9768 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9769 let buffer = target.buffer.read(cx);
9770 let range = check_multiline_range(buffer, range);
9771 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9772 s.select_ranges([range]);
9773 });
9774 } else {
9775 cx.window_context().defer(move |cx| {
9776 let target_editor: View<Self> =
9777 workspace.update(cx, |workspace, cx| {
9778 let pane = if split {
9779 workspace.adjacent_pane(cx)
9780 } else {
9781 workspace.active_pane().clone()
9782 };
9783
9784 workspace.open_project_item(
9785 pane,
9786 target.buffer.clone(),
9787 true,
9788 true,
9789 cx,
9790 )
9791 });
9792 target_editor.update(cx, |target_editor, cx| {
9793 // When selecting a definition in a different buffer, disable the nav history
9794 // to avoid creating a history entry at the previous cursor location.
9795 pane.update(cx, |pane, _| pane.disable_history());
9796 let buffer = target.buffer.read(cx);
9797 let range = check_multiline_range(buffer, range);
9798 target_editor.change_selections(
9799 Some(Autoscroll::focused()),
9800 cx,
9801 |s| {
9802 s.select_ranges([range]);
9803 },
9804 );
9805 pane.update(cx, |pane, _| pane.enable_history());
9806 });
9807 });
9808 }
9809 Navigated::Yes
9810 })
9811 })
9812 } else if !definitions.is_empty() {
9813 cx.spawn(|editor, mut cx| async move {
9814 let (title, location_tasks, workspace) = editor
9815 .update(&mut cx, |editor, cx| {
9816 let tab_kind = match kind {
9817 Some(GotoDefinitionKind::Implementation) => "Implementations",
9818 _ => "Definitions",
9819 };
9820 let title = definitions
9821 .iter()
9822 .find_map(|definition| match definition {
9823 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9824 let buffer = origin.buffer.read(cx);
9825 format!(
9826 "{} for {}",
9827 tab_kind,
9828 buffer
9829 .text_for_range(origin.range.clone())
9830 .collect::<String>()
9831 )
9832 }),
9833 HoverLink::InlayHint(_, _) => None,
9834 HoverLink::Url(_) => None,
9835 HoverLink::File(_) => None,
9836 })
9837 .unwrap_or(tab_kind.to_string());
9838 let location_tasks = definitions
9839 .into_iter()
9840 .map(|definition| match definition {
9841 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9842 HoverLink::InlayHint(lsp_location, server_id) => {
9843 editor.compute_target_location(lsp_location, server_id, cx)
9844 }
9845 HoverLink::Url(_) => Task::ready(Ok(None)),
9846 HoverLink::File(_) => Task::ready(Ok(None)),
9847 })
9848 .collect::<Vec<_>>();
9849 (title, location_tasks, editor.workspace().clone())
9850 })
9851 .context("location tasks preparation")?;
9852
9853 let locations = future::join_all(location_tasks)
9854 .await
9855 .into_iter()
9856 .filter_map(|location| location.transpose())
9857 .collect::<Result<_>>()
9858 .context("location tasks")?;
9859
9860 let Some(workspace) = workspace else {
9861 return Ok(Navigated::No);
9862 };
9863 let opened = workspace
9864 .update(&mut cx, |workspace, cx| {
9865 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9866 })
9867 .ok();
9868
9869 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9870 })
9871 } else {
9872 Task::ready(Ok(Navigated::No))
9873 }
9874 }
9875
9876 fn compute_target_location(
9877 &self,
9878 lsp_location: lsp::Location,
9879 server_id: LanguageServerId,
9880 cx: &mut ViewContext<Self>,
9881 ) -> Task<anyhow::Result<Option<Location>>> {
9882 let Some(project) = self.project.clone() else {
9883 return Task::ready(Ok(None));
9884 };
9885
9886 cx.spawn(move |editor, mut cx| async move {
9887 let location_task = editor.update(&mut cx, |_, cx| {
9888 project.update(cx, |project, cx| {
9889 let language_server_name = project
9890 .language_server_statuses(cx)
9891 .find(|(id, _)| server_id == *id)
9892 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9893 language_server_name.map(|language_server_name| {
9894 project.open_local_buffer_via_lsp(
9895 lsp_location.uri.clone(),
9896 server_id,
9897 language_server_name,
9898 cx,
9899 )
9900 })
9901 })
9902 })?;
9903 let location = match location_task {
9904 Some(task) => Some({
9905 let target_buffer_handle = task.await.context("open local buffer")?;
9906 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9907 let target_start = target_buffer
9908 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9909 let target_end = target_buffer
9910 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9911 target_buffer.anchor_after(target_start)
9912 ..target_buffer.anchor_before(target_end)
9913 })?;
9914 Location {
9915 buffer: target_buffer_handle,
9916 range,
9917 }
9918 }),
9919 None => None,
9920 };
9921 Ok(location)
9922 })
9923 }
9924
9925 pub fn find_all_references(
9926 &mut self,
9927 _: &FindAllReferences,
9928 cx: &mut ViewContext<Self>,
9929 ) -> Option<Task<Result<Navigated>>> {
9930 let selection = self.selections.newest::<usize>(cx);
9931 let multi_buffer = self.buffer.read(cx);
9932 let head = selection.head();
9933
9934 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9935 let head_anchor = multi_buffer_snapshot.anchor_at(
9936 head,
9937 if head < selection.tail() {
9938 Bias::Right
9939 } else {
9940 Bias::Left
9941 },
9942 );
9943
9944 match self
9945 .find_all_references_task_sources
9946 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9947 {
9948 Ok(_) => {
9949 log::info!(
9950 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9951 );
9952 return None;
9953 }
9954 Err(i) => {
9955 self.find_all_references_task_sources.insert(i, head_anchor);
9956 }
9957 }
9958
9959 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9960 let workspace = self.workspace()?;
9961 let project = workspace.read(cx).project().clone();
9962 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9963 Some(cx.spawn(|editor, mut cx| async move {
9964 let _cleanup = defer({
9965 let mut cx = cx.clone();
9966 move || {
9967 let _ = editor.update(&mut cx, |editor, _| {
9968 if let Ok(i) =
9969 editor
9970 .find_all_references_task_sources
9971 .binary_search_by(|anchor| {
9972 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9973 })
9974 {
9975 editor.find_all_references_task_sources.remove(i);
9976 }
9977 });
9978 }
9979 });
9980
9981 let locations = references.await?;
9982 if locations.is_empty() {
9983 return anyhow::Ok(Navigated::No);
9984 }
9985
9986 workspace.update(&mut cx, |workspace, cx| {
9987 let title = locations
9988 .first()
9989 .as_ref()
9990 .map(|location| {
9991 let buffer = location.buffer.read(cx);
9992 format!(
9993 "References to `{}`",
9994 buffer
9995 .text_for_range(location.range.clone())
9996 .collect::<String>()
9997 )
9998 })
9999 .unwrap();
10000 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10001 Navigated::Yes
10002 })
10003 }))
10004 }
10005
10006 /// Opens a multibuffer with the given project locations in it
10007 pub fn open_locations_in_multibuffer(
10008 workspace: &mut Workspace,
10009 mut locations: Vec<Location>,
10010 title: String,
10011 split: bool,
10012 cx: &mut ViewContext<Workspace>,
10013 ) {
10014 // If there are multiple definitions, open them in a multibuffer
10015 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10016 let mut locations = locations.into_iter().peekable();
10017 let mut ranges_to_highlight = Vec::new();
10018 let capability = workspace.project().read(cx).capability();
10019
10020 let excerpt_buffer = cx.new_model(|cx| {
10021 let mut multibuffer = MultiBuffer::new(capability);
10022 while let Some(location) = locations.next() {
10023 let buffer = location.buffer.read(cx);
10024 let mut ranges_for_buffer = Vec::new();
10025 let range = location.range.to_offset(buffer);
10026 ranges_for_buffer.push(range.clone());
10027
10028 while let Some(next_location) = locations.peek() {
10029 if next_location.buffer == location.buffer {
10030 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10031 locations.next();
10032 } else {
10033 break;
10034 }
10035 }
10036
10037 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10038 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10039 location.buffer.clone(),
10040 ranges_for_buffer,
10041 DEFAULT_MULTIBUFFER_CONTEXT,
10042 cx,
10043 ))
10044 }
10045
10046 multibuffer.with_title(title)
10047 });
10048
10049 let editor = cx.new_view(|cx| {
10050 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10051 });
10052 editor.update(cx, |editor, cx| {
10053 if let Some(first_range) = ranges_to_highlight.first() {
10054 editor.change_selections(None, cx, |selections| {
10055 selections.clear_disjoint();
10056 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10057 });
10058 }
10059 editor.highlight_background::<Self>(
10060 &ranges_to_highlight,
10061 |theme| theme.editor_highlighted_line_background,
10062 cx,
10063 );
10064 editor.register_buffers_with_language_servers(cx);
10065 });
10066
10067 let item = Box::new(editor);
10068 let item_id = item.item_id();
10069
10070 if split {
10071 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10072 } else {
10073 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10074 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10075 pane.close_current_preview_item(cx)
10076 } else {
10077 None
10078 }
10079 });
10080 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10081 }
10082 workspace.active_pane().update(cx, |pane, cx| {
10083 pane.set_preview_item_id(Some(item_id), cx);
10084 });
10085 }
10086
10087 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10088 use language::ToOffset as _;
10089
10090 let provider = self.semantics_provider.clone()?;
10091 let selection = self.selections.newest_anchor().clone();
10092 let (cursor_buffer, cursor_buffer_position) = self
10093 .buffer
10094 .read(cx)
10095 .text_anchor_for_position(selection.head(), cx)?;
10096 let (tail_buffer, cursor_buffer_position_end) = self
10097 .buffer
10098 .read(cx)
10099 .text_anchor_for_position(selection.tail(), cx)?;
10100 if tail_buffer != cursor_buffer {
10101 return None;
10102 }
10103
10104 let snapshot = cursor_buffer.read(cx).snapshot();
10105 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10106 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10107 let prepare_rename = provider
10108 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10109 .unwrap_or_else(|| Task::ready(Ok(None)));
10110 drop(snapshot);
10111
10112 Some(cx.spawn(|this, mut cx| async move {
10113 let rename_range = if let Some(range) = prepare_rename.await? {
10114 Some(range)
10115 } else {
10116 this.update(&mut cx, |this, cx| {
10117 let buffer = this.buffer.read(cx).snapshot(cx);
10118 let mut buffer_highlights = this
10119 .document_highlights_for_position(selection.head(), &buffer)
10120 .filter(|highlight| {
10121 highlight.start.excerpt_id == selection.head().excerpt_id
10122 && highlight.end.excerpt_id == selection.head().excerpt_id
10123 });
10124 buffer_highlights
10125 .next()
10126 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10127 })?
10128 };
10129 if let Some(rename_range) = rename_range {
10130 this.update(&mut cx, |this, cx| {
10131 let snapshot = cursor_buffer.read(cx).snapshot();
10132 let rename_buffer_range = rename_range.to_offset(&snapshot);
10133 let cursor_offset_in_rename_range =
10134 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10135 let cursor_offset_in_rename_range_end =
10136 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10137
10138 this.take_rename(false, cx);
10139 let buffer = this.buffer.read(cx).read(cx);
10140 let cursor_offset = selection.head().to_offset(&buffer);
10141 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10142 let rename_end = rename_start + rename_buffer_range.len();
10143 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10144 let mut old_highlight_id = None;
10145 let old_name: Arc<str> = buffer
10146 .chunks(rename_start..rename_end, true)
10147 .map(|chunk| {
10148 if old_highlight_id.is_none() {
10149 old_highlight_id = chunk.syntax_highlight_id;
10150 }
10151 chunk.text
10152 })
10153 .collect::<String>()
10154 .into();
10155
10156 drop(buffer);
10157
10158 // Position the selection in the rename editor so that it matches the current selection.
10159 this.show_local_selections = false;
10160 let rename_editor = cx.new_view(|cx| {
10161 let mut editor = Editor::single_line(cx);
10162 editor.buffer.update(cx, |buffer, cx| {
10163 buffer.edit([(0..0, old_name.clone())], None, cx)
10164 });
10165 let rename_selection_range = match cursor_offset_in_rename_range
10166 .cmp(&cursor_offset_in_rename_range_end)
10167 {
10168 Ordering::Equal => {
10169 editor.select_all(&SelectAll, cx);
10170 return editor;
10171 }
10172 Ordering::Less => {
10173 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10174 }
10175 Ordering::Greater => {
10176 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10177 }
10178 };
10179 if rename_selection_range.end > old_name.len() {
10180 editor.select_all(&SelectAll, cx);
10181 } else {
10182 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10183 s.select_ranges([rename_selection_range]);
10184 });
10185 }
10186 editor
10187 });
10188 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10189 if e == &EditorEvent::Focused {
10190 cx.emit(EditorEvent::FocusedIn)
10191 }
10192 })
10193 .detach();
10194
10195 let write_highlights =
10196 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10197 let read_highlights =
10198 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10199 let ranges = write_highlights
10200 .iter()
10201 .flat_map(|(_, ranges)| ranges.iter())
10202 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10203 .cloned()
10204 .collect();
10205
10206 this.highlight_text::<Rename>(
10207 ranges,
10208 HighlightStyle {
10209 fade_out: Some(0.6),
10210 ..Default::default()
10211 },
10212 cx,
10213 );
10214 let rename_focus_handle = rename_editor.focus_handle(cx);
10215 cx.focus(&rename_focus_handle);
10216 let block_id = this.insert_blocks(
10217 [BlockProperties {
10218 style: BlockStyle::Flex,
10219 placement: BlockPlacement::Below(range.start),
10220 height: 1,
10221 render: Arc::new({
10222 let rename_editor = rename_editor.clone();
10223 move |cx: &mut BlockContext| {
10224 let mut text_style = cx.editor_style.text.clone();
10225 if let Some(highlight_style) = old_highlight_id
10226 .and_then(|h| h.style(&cx.editor_style.syntax))
10227 {
10228 text_style = text_style.highlight(highlight_style);
10229 }
10230 div()
10231 .block_mouse_down()
10232 .pl(cx.anchor_x)
10233 .child(EditorElement::new(
10234 &rename_editor,
10235 EditorStyle {
10236 background: cx.theme().system().transparent,
10237 local_player: cx.editor_style.local_player,
10238 text: text_style,
10239 scrollbar_width: cx.editor_style.scrollbar_width,
10240 syntax: cx.editor_style.syntax.clone(),
10241 status: cx.editor_style.status.clone(),
10242 inlay_hints_style: HighlightStyle {
10243 font_weight: Some(FontWeight::BOLD),
10244 ..make_inlay_hints_style(cx)
10245 },
10246 inline_completion_styles: make_suggestion_styles(
10247 cx,
10248 ),
10249 ..EditorStyle::default()
10250 },
10251 ))
10252 .into_any_element()
10253 }
10254 }),
10255 priority: 0,
10256 }],
10257 Some(Autoscroll::fit()),
10258 cx,
10259 )[0];
10260 this.pending_rename = Some(RenameState {
10261 range,
10262 old_name,
10263 editor: rename_editor,
10264 block_id,
10265 });
10266 })?;
10267 }
10268
10269 Ok(())
10270 }))
10271 }
10272
10273 pub fn confirm_rename(
10274 &mut self,
10275 _: &ConfirmRename,
10276 cx: &mut ViewContext<Self>,
10277 ) -> Option<Task<Result<()>>> {
10278 let rename = self.take_rename(false, cx)?;
10279 let workspace = self.workspace()?.downgrade();
10280 let (buffer, start) = self
10281 .buffer
10282 .read(cx)
10283 .text_anchor_for_position(rename.range.start, cx)?;
10284 let (end_buffer, _) = self
10285 .buffer
10286 .read(cx)
10287 .text_anchor_for_position(rename.range.end, cx)?;
10288 if buffer != end_buffer {
10289 return None;
10290 }
10291
10292 let old_name = rename.old_name;
10293 let new_name = rename.editor.read(cx).text(cx);
10294
10295 let rename = self.semantics_provider.as_ref()?.perform_rename(
10296 &buffer,
10297 start,
10298 new_name.clone(),
10299 cx,
10300 )?;
10301
10302 Some(cx.spawn(|editor, mut cx| async move {
10303 let project_transaction = rename.await?;
10304 Self::open_project_transaction(
10305 &editor,
10306 workspace,
10307 project_transaction,
10308 format!("Rename: {} → {}", old_name, new_name),
10309 cx.clone(),
10310 )
10311 .await?;
10312
10313 editor.update(&mut cx, |editor, cx| {
10314 editor.refresh_document_highlights(cx);
10315 })?;
10316 Ok(())
10317 }))
10318 }
10319
10320 fn take_rename(
10321 &mut self,
10322 moving_cursor: bool,
10323 cx: &mut ViewContext<Self>,
10324 ) -> Option<RenameState> {
10325 let rename = self.pending_rename.take()?;
10326 if rename.editor.focus_handle(cx).is_focused(cx) {
10327 cx.focus(&self.focus_handle);
10328 }
10329
10330 self.remove_blocks(
10331 [rename.block_id].into_iter().collect(),
10332 Some(Autoscroll::fit()),
10333 cx,
10334 );
10335 self.clear_highlights::<Rename>(cx);
10336 self.show_local_selections = true;
10337
10338 if moving_cursor {
10339 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10340 editor.selections.newest::<usize>(cx).head()
10341 });
10342
10343 // Update the selection to match the position of the selection inside
10344 // the rename editor.
10345 let snapshot = self.buffer.read(cx).read(cx);
10346 let rename_range = rename.range.to_offset(&snapshot);
10347 let cursor_in_editor = snapshot
10348 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10349 .min(rename_range.end);
10350 drop(snapshot);
10351
10352 self.change_selections(None, cx, |s| {
10353 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10354 });
10355 } else {
10356 self.refresh_document_highlights(cx);
10357 }
10358
10359 Some(rename)
10360 }
10361
10362 pub fn pending_rename(&self) -> Option<&RenameState> {
10363 self.pending_rename.as_ref()
10364 }
10365
10366 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10367 let project = match &self.project {
10368 Some(project) => project.clone(),
10369 None => return None,
10370 };
10371
10372 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffers, cx))
10373 }
10374
10375 fn format_selections(
10376 &mut self,
10377 _: &FormatSelections,
10378 cx: &mut ViewContext<Self>,
10379 ) -> Option<Task<Result<()>>> {
10380 let project = match &self.project {
10381 Some(project) => project.clone(),
10382 None => return None,
10383 };
10384
10385 let ranges = self
10386 .selections
10387 .all_adjusted(cx)
10388 .into_iter()
10389 .map(|selection| selection.range())
10390 .collect_vec();
10391
10392 Some(self.perform_format(
10393 project,
10394 FormatTrigger::Manual,
10395 FormatTarget::Ranges(ranges),
10396 cx,
10397 ))
10398 }
10399
10400 fn perform_format(
10401 &mut self,
10402 project: Model<Project>,
10403 trigger: FormatTrigger,
10404 target: FormatTarget,
10405 cx: &mut ViewContext<Self>,
10406 ) -> Task<Result<()>> {
10407 let buffer = self.buffer.clone();
10408 let (buffers, target) = match target {
10409 FormatTarget::Buffers => {
10410 let mut buffers = buffer.read(cx).all_buffers();
10411 if trigger == FormatTrigger::Save {
10412 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10413 }
10414 (buffers, LspFormatTarget::Buffers)
10415 }
10416 FormatTarget::Ranges(selection_ranges) => {
10417 let multi_buffer = buffer.read(cx);
10418 let snapshot = multi_buffer.read(cx);
10419 let mut buffers = HashSet::default();
10420 let mut buffer_id_to_ranges: BTreeMap<BufferId, Vec<Range<text::Anchor>>> =
10421 BTreeMap::new();
10422 for selection_range in selection_ranges {
10423 for (excerpt, buffer_range) in snapshot.range_to_buffer_ranges(selection_range)
10424 {
10425 let buffer_id = excerpt.buffer_id();
10426 let start = excerpt.buffer().anchor_before(buffer_range.start);
10427 let end = excerpt.buffer().anchor_after(buffer_range.end);
10428 buffers.insert(multi_buffer.buffer(buffer_id).unwrap());
10429 buffer_id_to_ranges
10430 .entry(buffer_id)
10431 .and_modify(|buffer_ranges| buffer_ranges.push(start..end))
10432 .or_insert_with(|| vec![start..end]);
10433 }
10434 }
10435 (buffers, LspFormatTarget::Ranges(buffer_id_to_ranges))
10436 }
10437 };
10438
10439 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10440 let format = project.update(cx, |project, cx| {
10441 project.format(buffers, target, true, trigger, cx)
10442 });
10443
10444 cx.spawn(|_, mut cx| async move {
10445 let transaction = futures::select_biased! {
10446 () = timeout => {
10447 log::warn!("timed out waiting for formatting");
10448 None
10449 }
10450 transaction = format.log_err().fuse() => transaction,
10451 };
10452
10453 buffer
10454 .update(&mut cx, |buffer, cx| {
10455 if let Some(transaction) = transaction {
10456 if !buffer.is_singleton() {
10457 buffer.push_transaction(&transaction.0, cx);
10458 }
10459 }
10460
10461 cx.notify();
10462 })
10463 .ok();
10464
10465 Ok(())
10466 })
10467 }
10468
10469 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10470 if let Some(project) = self.project.clone() {
10471 self.buffer.update(cx, |multi_buffer, cx| {
10472 project.update(cx, |project, cx| {
10473 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10474 });
10475 })
10476 }
10477 }
10478
10479 fn cancel_language_server_work(
10480 &mut self,
10481 _: &actions::CancelLanguageServerWork,
10482 cx: &mut ViewContext<Self>,
10483 ) {
10484 if let Some(project) = self.project.clone() {
10485 self.buffer.update(cx, |multi_buffer, cx| {
10486 project.update(cx, |project, cx| {
10487 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10488 });
10489 })
10490 }
10491 }
10492
10493 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10494 cx.show_character_palette();
10495 }
10496
10497 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10498 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10499 let buffer = self.buffer.read(cx).snapshot(cx);
10500 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10501 let is_valid = buffer
10502 .diagnostics_in_range(active_diagnostics.primary_range.clone(), false)
10503 .any(|entry| {
10504 let range = entry.range.to_offset(&buffer);
10505 entry.diagnostic.is_primary
10506 && !range.is_empty()
10507 && range.start == primary_range_start
10508 && entry.diagnostic.message == active_diagnostics.primary_message
10509 });
10510
10511 if is_valid != active_diagnostics.is_valid {
10512 active_diagnostics.is_valid = is_valid;
10513 let mut new_styles = HashMap::default();
10514 for (block_id, diagnostic) in &active_diagnostics.blocks {
10515 new_styles.insert(
10516 *block_id,
10517 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10518 );
10519 }
10520 self.display_map.update(cx, |display_map, _cx| {
10521 display_map.replace_blocks(new_styles)
10522 });
10523 }
10524 }
10525 }
10526
10527 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) {
10528 self.dismiss_diagnostics(cx);
10529 let snapshot = self.snapshot(cx);
10530 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10531 let buffer = self.buffer.read(cx).snapshot(cx);
10532
10533 let mut primary_range = None;
10534 let mut primary_message = None;
10535 let mut group_end = Point::zero();
10536 let diagnostic_group = buffer
10537 .diagnostic_group(group_id)
10538 .filter_map(|entry| {
10539 let start = entry.range.start.to_point(&buffer);
10540 let end = entry.range.end.to_point(&buffer);
10541 if snapshot.is_line_folded(MultiBufferRow(start.row))
10542 && (start.row == end.row
10543 || snapshot.is_line_folded(MultiBufferRow(end.row)))
10544 {
10545 return None;
10546 }
10547 if end > group_end {
10548 group_end = end;
10549 }
10550 if entry.diagnostic.is_primary {
10551 primary_range = Some(entry.range.clone());
10552 primary_message = Some(entry.diagnostic.message.clone());
10553 }
10554 Some(entry)
10555 })
10556 .collect::<Vec<_>>();
10557 let primary_range = primary_range?;
10558 let primary_message = primary_message?;
10559
10560 let blocks = display_map
10561 .insert_blocks(
10562 diagnostic_group.iter().map(|entry| {
10563 let diagnostic = entry.diagnostic.clone();
10564 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10565 BlockProperties {
10566 style: BlockStyle::Fixed,
10567 placement: BlockPlacement::Below(
10568 buffer.anchor_after(entry.range.start),
10569 ),
10570 height: message_height,
10571 render: diagnostic_block_renderer(diagnostic, None, true, true),
10572 priority: 0,
10573 }
10574 }),
10575 cx,
10576 )
10577 .into_iter()
10578 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10579 .collect();
10580
10581 Some(ActiveDiagnosticGroup {
10582 primary_range,
10583 primary_message,
10584 group_id,
10585 blocks,
10586 is_valid: true,
10587 })
10588 });
10589 }
10590
10591 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10592 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10593 self.display_map.update(cx, |display_map, cx| {
10594 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10595 });
10596 cx.notify();
10597 }
10598 }
10599
10600 pub fn set_selections_from_remote(
10601 &mut self,
10602 selections: Vec<Selection<Anchor>>,
10603 pending_selection: Option<Selection<Anchor>>,
10604 cx: &mut ViewContext<Self>,
10605 ) {
10606 let old_cursor_position = self.selections.newest_anchor().head();
10607 self.selections.change_with(cx, |s| {
10608 s.select_anchors(selections);
10609 if let Some(pending_selection) = pending_selection {
10610 s.set_pending(pending_selection, SelectMode::Character);
10611 } else {
10612 s.clear_pending();
10613 }
10614 });
10615 self.selections_did_change(false, &old_cursor_position, true, cx);
10616 }
10617
10618 fn push_to_selection_history(&mut self) {
10619 self.selection_history.push(SelectionHistoryEntry {
10620 selections: self.selections.disjoint_anchors(),
10621 select_next_state: self.select_next_state.clone(),
10622 select_prev_state: self.select_prev_state.clone(),
10623 add_selections_state: self.add_selections_state.clone(),
10624 });
10625 }
10626
10627 pub fn transact(
10628 &mut self,
10629 cx: &mut ViewContext<Self>,
10630 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10631 ) -> Option<TransactionId> {
10632 self.start_transaction_at(Instant::now(), cx);
10633 update(self, cx);
10634 self.end_transaction_at(Instant::now(), cx)
10635 }
10636
10637 pub fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10638 self.end_selection(cx);
10639 if let Some(tx_id) = self
10640 .buffer
10641 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10642 {
10643 self.selection_history
10644 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10645 cx.emit(EditorEvent::TransactionBegun {
10646 transaction_id: tx_id,
10647 })
10648 }
10649 }
10650
10651 pub fn end_transaction_at(
10652 &mut self,
10653 now: Instant,
10654 cx: &mut ViewContext<Self>,
10655 ) -> Option<TransactionId> {
10656 if let Some(transaction_id) = self
10657 .buffer
10658 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10659 {
10660 if let Some((_, end_selections)) =
10661 self.selection_history.transaction_mut(transaction_id)
10662 {
10663 *end_selections = Some(self.selections.disjoint_anchors());
10664 } else {
10665 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10666 }
10667
10668 cx.emit(EditorEvent::Edited { transaction_id });
10669 Some(transaction_id)
10670 } else {
10671 None
10672 }
10673 }
10674
10675 pub fn set_mark(&mut self, _: &actions::SetMark, cx: &mut ViewContext<Self>) {
10676 if self.selection_mark_mode {
10677 self.change_selections(None, cx, |s| {
10678 s.move_with(|_, sel| {
10679 sel.collapse_to(sel.head(), SelectionGoal::None);
10680 });
10681 })
10682 }
10683 self.selection_mark_mode = true;
10684 cx.notify();
10685 }
10686
10687 pub fn swap_selection_ends(
10688 &mut self,
10689 _: &actions::SwapSelectionEnds,
10690 cx: &mut ViewContext<Self>,
10691 ) {
10692 self.change_selections(None, cx, |s| {
10693 s.move_with(|_, sel| {
10694 if sel.start != sel.end {
10695 sel.reversed = !sel.reversed
10696 }
10697 });
10698 });
10699 self.request_autoscroll(Autoscroll::newest(), cx);
10700 cx.notify();
10701 }
10702
10703 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10704 if self.is_singleton(cx) {
10705 let selection = self.selections.newest::<Point>(cx);
10706
10707 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10708 let range = if selection.is_empty() {
10709 let point = selection.head().to_display_point(&display_map);
10710 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10711 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10712 .to_point(&display_map);
10713 start..end
10714 } else {
10715 selection.range()
10716 };
10717 if display_map.folds_in_range(range).next().is_some() {
10718 self.unfold_lines(&Default::default(), cx)
10719 } else {
10720 self.fold(&Default::default(), cx)
10721 }
10722 } else {
10723 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10724 let mut toggled_buffers = HashSet::default();
10725 for (_, buffer_snapshot, _) in
10726 multi_buffer_snapshot.excerpts_in_ranges(self.selections.disjoint_anchor_ranges())
10727 {
10728 let buffer_id = buffer_snapshot.remote_id();
10729 if toggled_buffers.insert(buffer_id) {
10730 if self.buffer_folded(buffer_id, cx) {
10731 self.unfold_buffer(buffer_id, cx);
10732 } else {
10733 self.fold_buffer(buffer_id, cx);
10734 }
10735 }
10736 }
10737 }
10738 }
10739
10740 pub fn toggle_fold_recursive(
10741 &mut self,
10742 _: &actions::ToggleFoldRecursive,
10743 cx: &mut ViewContext<Self>,
10744 ) {
10745 let selection = self.selections.newest::<Point>(cx);
10746
10747 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10748 let range = if selection.is_empty() {
10749 let point = selection.head().to_display_point(&display_map);
10750 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10751 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10752 .to_point(&display_map);
10753 start..end
10754 } else {
10755 selection.range()
10756 };
10757 if display_map.folds_in_range(range).next().is_some() {
10758 self.unfold_recursive(&Default::default(), cx)
10759 } else {
10760 self.fold_recursive(&Default::default(), cx)
10761 }
10762 }
10763
10764 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10765 if self.is_singleton(cx) {
10766 let mut to_fold = Vec::new();
10767 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10768 let selections = self.selections.all_adjusted(cx);
10769
10770 for selection in selections {
10771 let range = selection.range().sorted();
10772 let buffer_start_row = range.start.row;
10773
10774 if range.start.row != range.end.row {
10775 let mut found = false;
10776 let mut row = range.start.row;
10777 while row <= range.end.row {
10778 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10779 {
10780 found = true;
10781 row = crease.range().end.row + 1;
10782 to_fold.push(crease);
10783 } else {
10784 row += 1
10785 }
10786 }
10787 if found {
10788 continue;
10789 }
10790 }
10791
10792 for row in (0..=range.start.row).rev() {
10793 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10794 if crease.range().end.row >= buffer_start_row {
10795 to_fold.push(crease);
10796 if row <= range.start.row {
10797 break;
10798 }
10799 }
10800 }
10801 }
10802 }
10803
10804 self.fold_creases(to_fold, true, cx);
10805 } else {
10806 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10807 let mut folded_buffers = HashSet::default();
10808 for (_, buffer_snapshot, _) in
10809 multi_buffer_snapshot.excerpts_in_ranges(self.selections.disjoint_anchor_ranges())
10810 {
10811 let buffer_id = buffer_snapshot.remote_id();
10812 if folded_buffers.insert(buffer_id) {
10813 self.fold_buffer(buffer_id, cx);
10814 }
10815 }
10816 }
10817 }
10818
10819 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10820 if !self.buffer.read(cx).is_singleton() {
10821 return;
10822 }
10823
10824 let fold_at_level = fold_at.level;
10825 let snapshot = self.buffer.read(cx).snapshot(cx);
10826 let mut to_fold = Vec::new();
10827 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10828
10829 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10830 while start_row < end_row {
10831 match self
10832 .snapshot(cx)
10833 .crease_for_buffer_row(MultiBufferRow(start_row))
10834 {
10835 Some(crease) => {
10836 let nested_start_row = crease.range().start.row + 1;
10837 let nested_end_row = crease.range().end.row;
10838
10839 if current_level < fold_at_level {
10840 stack.push((nested_start_row, nested_end_row, current_level + 1));
10841 } else if current_level == fold_at_level {
10842 to_fold.push(crease);
10843 }
10844
10845 start_row = nested_end_row + 1;
10846 }
10847 None => start_row += 1,
10848 }
10849 }
10850 }
10851
10852 self.fold_creases(to_fold, true, cx);
10853 }
10854
10855 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10856 if self.buffer.read(cx).is_singleton() {
10857 let mut fold_ranges = Vec::new();
10858 let snapshot = self.buffer.read(cx).snapshot(cx);
10859
10860 for row in 0..snapshot.max_row().0 {
10861 if let Some(foldable_range) =
10862 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10863 {
10864 fold_ranges.push(foldable_range);
10865 }
10866 }
10867
10868 self.fold_creases(fold_ranges, true, cx);
10869 } else {
10870 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10871 editor
10872 .update(&mut cx, |editor, cx| {
10873 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10874 editor.fold_buffer(buffer_id, cx);
10875 }
10876 })
10877 .ok();
10878 });
10879 }
10880 }
10881
10882 pub fn fold_function_bodies(
10883 &mut self,
10884 _: &actions::FoldFunctionBodies,
10885 cx: &mut ViewContext<Self>,
10886 ) {
10887 let snapshot = self.buffer.read(cx).snapshot(cx);
10888 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10889 return;
10890 };
10891 let creases = buffer
10892 .function_body_fold_ranges(0..buffer.len())
10893 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10894 .collect();
10895
10896 self.fold_creases(creases, true, cx);
10897 }
10898
10899 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10900 let mut to_fold = Vec::new();
10901 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10902 let selections = self.selections.all_adjusted(cx);
10903
10904 for selection in selections {
10905 let range = selection.range().sorted();
10906 let buffer_start_row = range.start.row;
10907
10908 if range.start.row != range.end.row {
10909 let mut found = false;
10910 for row in range.start.row..=range.end.row {
10911 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10912 found = true;
10913 to_fold.push(crease);
10914 }
10915 }
10916 if found {
10917 continue;
10918 }
10919 }
10920
10921 for row in (0..=range.start.row).rev() {
10922 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10923 if crease.range().end.row >= buffer_start_row {
10924 to_fold.push(crease);
10925 } else {
10926 break;
10927 }
10928 }
10929 }
10930 }
10931
10932 self.fold_creases(to_fold, true, cx);
10933 }
10934
10935 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10936 let buffer_row = fold_at.buffer_row;
10937 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10938
10939 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10940 let autoscroll = self
10941 .selections
10942 .all::<Point>(cx)
10943 .iter()
10944 .any(|selection| crease.range().overlaps(&selection.range()));
10945
10946 self.fold_creases(vec![crease], autoscroll, cx);
10947 }
10948 }
10949
10950 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10951 if self.is_singleton(cx) {
10952 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10953 let buffer = &display_map.buffer_snapshot;
10954 let selections = self.selections.all::<Point>(cx);
10955 let ranges = selections
10956 .iter()
10957 .map(|s| {
10958 let range = s.display_range(&display_map).sorted();
10959 let mut start = range.start.to_point(&display_map);
10960 let mut end = range.end.to_point(&display_map);
10961 start.column = 0;
10962 end.column = buffer.line_len(MultiBufferRow(end.row));
10963 start..end
10964 })
10965 .collect::<Vec<_>>();
10966
10967 self.unfold_ranges(&ranges, true, true, cx);
10968 } else {
10969 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10970 let mut unfolded_buffers = HashSet::default();
10971 for (_, buffer_snapshot, _) in
10972 multi_buffer_snapshot.excerpts_in_ranges(self.selections.disjoint_anchor_ranges())
10973 {
10974 let buffer_id = buffer_snapshot.remote_id();
10975 if unfolded_buffers.insert(buffer_id) {
10976 self.unfold_buffer(buffer_id, cx);
10977 }
10978 }
10979 }
10980 }
10981
10982 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10983 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10984 let selections = self.selections.all::<Point>(cx);
10985 let ranges = selections
10986 .iter()
10987 .map(|s| {
10988 let mut range = s.display_range(&display_map).sorted();
10989 *range.start.column_mut() = 0;
10990 *range.end.column_mut() = display_map.line_len(range.end.row());
10991 let start = range.start.to_point(&display_map);
10992 let end = range.end.to_point(&display_map);
10993 start..end
10994 })
10995 .collect::<Vec<_>>();
10996
10997 self.unfold_ranges(&ranges, true, true, cx);
10998 }
10999
11000 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
11001 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11002
11003 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
11004 ..Point::new(
11005 unfold_at.buffer_row.0,
11006 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
11007 );
11008
11009 let autoscroll = self
11010 .selections
11011 .all::<Point>(cx)
11012 .iter()
11013 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
11014
11015 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
11016 }
11017
11018 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11019 if self.buffer.read(cx).is_singleton() {
11020 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11021 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
11022 } else {
11023 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
11024 editor
11025 .update(&mut cx, |editor, cx| {
11026 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
11027 editor.unfold_buffer(buffer_id, cx);
11028 }
11029 })
11030 .ok();
11031 });
11032 }
11033 }
11034
11035 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11036 let selections = self.selections.all::<Point>(cx);
11037 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11038 let line_mode = self.selections.line_mode;
11039 let ranges = selections
11040 .into_iter()
11041 .map(|s| {
11042 if line_mode {
11043 let start = Point::new(s.start.row, 0);
11044 let end = Point::new(
11045 s.end.row,
11046 display_map
11047 .buffer_snapshot
11048 .line_len(MultiBufferRow(s.end.row)),
11049 );
11050 Crease::simple(start..end, display_map.fold_placeholder.clone())
11051 } else {
11052 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
11053 }
11054 })
11055 .collect::<Vec<_>>();
11056 self.fold_creases(ranges, true, cx);
11057 }
11058
11059 pub fn fold_ranges<T: ToOffset + Clone>(
11060 &mut self,
11061 ranges: Vec<Range<T>>,
11062 auto_scroll: bool,
11063 cx: &mut ViewContext<Self>,
11064 ) {
11065 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11066 let ranges = ranges
11067 .into_iter()
11068 .map(|r| Crease::simple(r, display_map.fold_placeholder.clone()))
11069 .collect::<Vec<_>>();
11070 self.fold_creases(ranges, auto_scroll, cx);
11071 }
11072
11073 pub fn fold_creases<T: ToOffset + Clone>(
11074 &mut self,
11075 creases: Vec<Crease<T>>,
11076 auto_scroll: bool,
11077 cx: &mut ViewContext<Self>,
11078 ) {
11079 if creases.is_empty() {
11080 return;
11081 }
11082
11083 let mut buffers_affected = HashSet::default();
11084 let multi_buffer = self.buffer().read(cx);
11085 for crease in &creases {
11086 if let Some((_, buffer, _)) =
11087 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
11088 {
11089 buffers_affected.insert(buffer.read(cx).remote_id());
11090 };
11091 }
11092
11093 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
11094
11095 if auto_scroll {
11096 self.request_autoscroll(Autoscroll::fit(), cx);
11097 }
11098
11099 for buffer_id in buffers_affected {
11100 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
11101 }
11102
11103 cx.notify();
11104
11105 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11106 // Clear diagnostics block when folding a range that contains it.
11107 let snapshot = self.snapshot(cx);
11108 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11109 drop(snapshot);
11110 self.active_diagnostics = Some(active_diagnostics);
11111 self.dismiss_diagnostics(cx);
11112 } else {
11113 self.active_diagnostics = Some(active_diagnostics);
11114 }
11115 }
11116
11117 self.scrollbar_marker_state.dirty = true;
11118 }
11119
11120 /// Removes any folds whose ranges intersect any of the given ranges.
11121 pub fn unfold_ranges<T: ToOffset + Clone>(
11122 &mut self,
11123 ranges: &[Range<T>],
11124 inclusive: bool,
11125 auto_scroll: bool,
11126 cx: &mut ViewContext<Self>,
11127 ) {
11128 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11129 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
11130 });
11131 }
11132
11133 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
11134 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
11135 return;
11136 }
11137 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
11138 return;
11139 };
11140 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
11141 self.display_map
11142 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
11143 cx.emit(EditorEvent::BufferFoldToggled {
11144 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
11145 folded: true,
11146 });
11147 cx.notify();
11148 }
11149
11150 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
11151 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
11152 return;
11153 }
11154 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
11155 return;
11156 };
11157 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
11158 self.display_map.update(cx, |display_map, cx| {
11159 display_map.unfold_buffer(buffer_id, cx);
11160 });
11161 cx.emit(EditorEvent::BufferFoldToggled {
11162 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
11163 folded: false,
11164 });
11165 cx.notify();
11166 }
11167
11168 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
11169 self.display_map.read(cx).buffer_folded(buffer)
11170 }
11171
11172 /// Removes any folds with the given ranges.
11173 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11174 &mut self,
11175 ranges: &[Range<T>],
11176 type_id: TypeId,
11177 auto_scroll: bool,
11178 cx: &mut ViewContext<Self>,
11179 ) {
11180 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11181 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11182 });
11183 }
11184
11185 fn remove_folds_with<T: ToOffset + Clone>(
11186 &mut self,
11187 ranges: &[Range<T>],
11188 auto_scroll: bool,
11189 cx: &mut ViewContext<Self>,
11190 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11191 ) {
11192 if ranges.is_empty() {
11193 return;
11194 }
11195
11196 let mut buffers_affected = HashSet::default();
11197 let multi_buffer = self.buffer().read(cx);
11198 for range in ranges {
11199 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11200 buffers_affected.insert(buffer.read(cx).remote_id());
11201 };
11202 }
11203
11204 self.display_map.update(cx, update);
11205
11206 if auto_scroll {
11207 self.request_autoscroll(Autoscroll::fit(), cx);
11208 }
11209
11210 for buffer_id in buffers_affected {
11211 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
11212 }
11213
11214 cx.notify();
11215 self.scrollbar_marker_state.dirty = true;
11216 self.active_indent_guides_state.dirty = true;
11217 }
11218
11219 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11220 self.display_map.read(cx).fold_placeholder.clone()
11221 }
11222
11223 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11224 if hovered != self.gutter_hovered {
11225 self.gutter_hovered = hovered;
11226 cx.notify();
11227 }
11228 }
11229
11230 pub fn insert_blocks(
11231 &mut self,
11232 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11233 autoscroll: Option<Autoscroll>,
11234 cx: &mut ViewContext<Self>,
11235 ) -> Vec<CustomBlockId> {
11236 let blocks = self
11237 .display_map
11238 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11239 if let Some(autoscroll) = autoscroll {
11240 self.request_autoscroll(autoscroll, cx);
11241 }
11242 cx.notify();
11243 blocks
11244 }
11245
11246 pub fn resize_blocks(
11247 &mut self,
11248 heights: HashMap<CustomBlockId, u32>,
11249 autoscroll: Option<Autoscroll>,
11250 cx: &mut ViewContext<Self>,
11251 ) {
11252 self.display_map
11253 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11254 if let Some(autoscroll) = autoscroll {
11255 self.request_autoscroll(autoscroll, cx);
11256 }
11257 cx.notify();
11258 }
11259
11260 pub fn replace_blocks(
11261 &mut self,
11262 renderers: HashMap<CustomBlockId, RenderBlock>,
11263 autoscroll: Option<Autoscroll>,
11264 cx: &mut ViewContext<Self>,
11265 ) {
11266 self.display_map
11267 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11268 if let Some(autoscroll) = autoscroll {
11269 self.request_autoscroll(autoscroll, cx);
11270 }
11271 cx.notify();
11272 }
11273
11274 pub fn remove_blocks(
11275 &mut self,
11276 block_ids: HashSet<CustomBlockId>,
11277 autoscroll: Option<Autoscroll>,
11278 cx: &mut ViewContext<Self>,
11279 ) {
11280 self.display_map.update(cx, |display_map, cx| {
11281 display_map.remove_blocks(block_ids, cx)
11282 });
11283 if let Some(autoscroll) = autoscroll {
11284 self.request_autoscroll(autoscroll, cx);
11285 }
11286 cx.notify();
11287 }
11288
11289 pub fn row_for_block(
11290 &self,
11291 block_id: CustomBlockId,
11292 cx: &mut ViewContext<Self>,
11293 ) -> Option<DisplayRow> {
11294 self.display_map
11295 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11296 }
11297
11298 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11299 self.focused_block = Some(focused_block);
11300 }
11301
11302 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11303 self.focused_block.take()
11304 }
11305
11306 pub fn insert_creases(
11307 &mut self,
11308 creases: impl IntoIterator<Item = Crease<Anchor>>,
11309 cx: &mut ViewContext<Self>,
11310 ) -> Vec<CreaseId> {
11311 self.display_map
11312 .update(cx, |map, cx| map.insert_creases(creases, cx))
11313 }
11314
11315 pub fn remove_creases(
11316 &mut self,
11317 ids: impl IntoIterator<Item = CreaseId>,
11318 cx: &mut ViewContext<Self>,
11319 ) {
11320 self.display_map
11321 .update(cx, |map, cx| map.remove_creases(ids, cx));
11322 }
11323
11324 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11325 self.display_map
11326 .update(cx, |map, cx| map.snapshot(cx))
11327 .longest_row()
11328 }
11329
11330 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11331 self.display_map
11332 .update(cx, |map, cx| map.snapshot(cx))
11333 .max_point()
11334 }
11335
11336 pub fn text(&self, cx: &AppContext) -> String {
11337 self.buffer.read(cx).read(cx).text()
11338 }
11339
11340 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11341 let text = self.text(cx);
11342 let text = text.trim();
11343
11344 if text.is_empty() {
11345 return None;
11346 }
11347
11348 Some(text.to_string())
11349 }
11350
11351 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11352 self.transact(cx, |this, cx| {
11353 this.buffer
11354 .read(cx)
11355 .as_singleton()
11356 .expect("you can only call set_text on editors for singleton buffers")
11357 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11358 });
11359 }
11360
11361 pub fn display_text(&self, cx: &mut AppContext) -> String {
11362 self.display_map
11363 .update(cx, |map, cx| map.snapshot(cx))
11364 .text()
11365 }
11366
11367 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11368 let mut wrap_guides = smallvec::smallvec![];
11369
11370 if self.show_wrap_guides == Some(false) {
11371 return wrap_guides;
11372 }
11373
11374 let settings = self.buffer.read(cx).settings_at(0, cx);
11375 if settings.show_wrap_guides {
11376 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11377 wrap_guides.push((soft_wrap as usize, true));
11378 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11379 wrap_guides.push((soft_wrap as usize, true));
11380 }
11381 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11382 }
11383
11384 wrap_guides
11385 }
11386
11387 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11388 let settings = self.buffer.read(cx).settings_at(0, cx);
11389 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11390 match mode {
11391 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11392 SoftWrap::None
11393 }
11394 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11395 language_settings::SoftWrap::PreferredLineLength => {
11396 SoftWrap::Column(settings.preferred_line_length)
11397 }
11398 language_settings::SoftWrap::Bounded => {
11399 SoftWrap::Bounded(settings.preferred_line_length)
11400 }
11401 }
11402 }
11403
11404 pub fn set_soft_wrap_mode(
11405 &mut self,
11406 mode: language_settings::SoftWrap,
11407 cx: &mut ViewContext<Self>,
11408 ) {
11409 self.soft_wrap_mode_override = Some(mode);
11410 cx.notify();
11411 }
11412
11413 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11414 self.text_style_refinement = Some(style);
11415 }
11416
11417 /// called by the Element so we know what style we were most recently rendered with.
11418 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11419 let rem_size = cx.rem_size();
11420 self.display_map.update(cx, |map, cx| {
11421 map.set_font(
11422 style.text.font(),
11423 style.text.font_size.to_pixels(rem_size),
11424 cx,
11425 )
11426 });
11427 self.style = Some(style);
11428 }
11429
11430 pub fn style(&self) -> Option<&EditorStyle> {
11431 self.style.as_ref()
11432 }
11433
11434 // Called by the element. This method is not designed to be called outside of the editor
11435 // element's layout code because it does not notify when rewrapping is computed synchronously.
11436 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11437 self.display_map
11438 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11439 }
11440
11441 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11442 if self.soft_wrap_mode_override.is_some() {
11443 self.soft_wrap_mode_override.take();
11444 } else {
11445 let soft_wrap = match self.soft_wrap_mode(cx) {
11446 SoftWrap::GitDiff => return,
11447 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11448 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11449 language_settings::SoftWrap::None
11450 }
11451 };
11452 self.soft_wrap_mode_override = Some(soft_wrap);
11453 }
11454 cx.notify();
11455 }
11456
11457 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11458 let Some(workspace) = self.workspace() else {
11459 return;
11460 };
11461 let fs = workspace.read(cx).app_state().fs.clone();
11462 let current_show = TabBarSettings::get_global(cx).show;
11463 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11464 setting.show = Some(!current_show);
11465 });
11466 }
11467
11468 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11469 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11470 self.buffer
11471 .read(cx)
11472 .settings_at(0, cx)
11473 .indent_guides
11474 .enabled
11475 });
11476 self.show_indent_guides = Some(!currently_enabled);
11477 cx.notify();
11478 }
11479
11480 fn should_show_indent_guides(&self) -> Option<bool> {
11481 self.show_indent_guides
11482 }
11483
11484 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11485 let mut editor_settings = EditorSettings::get_global(cx).clone();
11486 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11487 EditorSettings::override_global(editor_settings, cx);
11488 }
11489
11490 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11491 self.use_relative_line_numbers
11492 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11493 }
11494
11495 pub fn toggle_relative_line_numbers(
11496 &mut self,
11497 _: &ToggleRelativeLineNumbers,
11498 cx: &mut ViewContext<Self>,
11499 ) {
11500 let is_relative = self.should_use_relative_line_numbers(cx);
11501 self.set_relative_line_number(Some(!is_relative), cx)
11502 }
11503
11504 pub fn set_relative_line_number(
11505 &mut self,
11506 is_relative: Option<bool>,
11507 cx: &mut ViewContext<Self>,
11508 ) {
11509 self.use_relative_line_numbers = is_relative;
11510 cx.notify();
11511 }
11512
11513 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11514 self.show_gutter = show_gutter;
11515 cx.notify();
11516 }
11517
11518 pub fn set_show_scrollbars(&mut self, show_scrollbars: bool, cx: &mut ViewContext<Self>) {
11519 self.show_scrollbars = show_scrollbars;
11520 cx.notify();
11521 }
11522
11523 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11524 self.show_line_numbers = Some(show_line_numbers);
11525 cx.notify();
11526 }
11527
11528 pub fn set_show_git_diff_gutter(
11529 &mut self,
11530 show_git_diff_gutter: bool,
11531 cx: &mut ViewContext<Self>,
11532 ) {
11533 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11534 cx.notify();
11535 }
11536
11537 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11538 self.show_code_actions = Some(show_code_actions);
11539 cx.notify();
11540 }
11541
11542 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11543 self.show_runnables = Some(show_runnables);
11544 cx.notify();
11545 }
11546
11547 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11548 if self.display_map.read(cx).masked != masked {
11549 self.display_map.update(cx, |map, _| map.masked = masked);
11550 }
11551 cx.notify()
11552 }
11553
11554 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11555 self.show_wrap_guides = Some(show_wrap_guides);
11556 cx.notify();
11557 }
11558
11559 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11560 self.show_indent_guides = Some(show_indent_guides);
11561 cx.notify();
11562 }
11563
11564 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11565 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11566 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11567 if let Some(dir) = file.abs_path(cx).parent() {
11568 return Some(dir.to_owned());
11569 }
11570 }
11571
11572 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11573 return Some(project_path.path.to_path_buf());
11574 }
11575 }
11576
11577 None
11578 }
11579
11580 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11581 self.active_excerpt(cx)?
11582 .1
11583 .read(cx)
11584 .file()
11585 .and_then(|f| f.as_local())
11586 }
11587
11588 fn target_file_abs_path(&self, cx: &mut ViewContext<Self>) -> Option<PathBuf> {
11589 self.active_excerpt(cx).and_then(|(_, buffer, _)| {
11590 let project_path = buffer.read(cx).project_path(cx)?;
11591 let project = self.project.as_ref()?.read(cx);
11592 project.absolute_path(&project_path, cx)
11593 })
11594 }
11595
11596 fn target_file_path(&self, cx: &mut ViewContext<Self>) -> Option<PathBuf> {
11597 self.active_excerpt(cx).and_then(|(_, buffer, _)| {
11598 let project_path = buffer.read(cx).project_path(cx)?;
11599 let project = self.project.as_ref()?.read(cx);
11600 let entry = project.entry_for_path(&project_path, cx)?;
11601 let path = entry.path.to_path_buf();
11602 Some(path)
11603 })
11604 }
11605
11606 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11607 if let Some(target) = self.target_file(cx) {
11608 cx.reveal_path(&target.abs_path(cx));
11609 }
11610 }
11611
11612 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11613 if let Some(path) = self.target_file_abs_path(cx) {
11614 if let Some(path) = path.to_str() {
11615 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11616 }
11617 }
11618 }
11619
11620 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11621 if let Some(path) = self.target_file_path(cx) {
11622 if let Some(path) = path.to_str() {
11623 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11624 }
11625 }
11626 }
11627
11628 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11629 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11630
11631 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11632 self.start_git_blame(true, cx);
11633 }
11634
11635 cx.notify();
11636 }
11637
11638 pub fn toggle_git_blame_inline(
11639 &mut self,
11640 _: &ToggleGitBlameInline,
11641 cx: &mut ViewContext<Self>,
11642 ) {
11643 self.toggle_git_blame_inline_internal(true, cx);
11644 cx.notify();
11645 }
11646
11647 pub fn git_blame_inline_enabled(&self) -> bool {
11648 self.git_blame_inline_enabled
11649 }
11650
11651 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11652 self.show_selection_menu = self
11653 .show_selection_menu
11654 .map(|show_selections_menu| !show_selections_menu)
11655 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11656
11657 cx.notify();
11658 }
11659
11660 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11661 self.show_selection_menu
11662 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11663 }
11664
11665 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11666 if let Some(project) = self.project.as_ref() {
11667 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11668 return;
11669 };
11670
11671 if buffer.read(cx).file().is_none() {
11672 return;
11673 }
11674
11675 let focused = self.focus_handle(cx).contains_focused(cx);
11676
11677 let project = project.clone();
11678 let blame =
11679 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11680 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11681 self.blame = Some(blame);
11682 }
11683 }
11684
11685 fn toggle_git_blame_inline_internal(
11686 &mut self,
11687 user_triggered: bool,
11688 cx: &mut ViewContext<Self>,
11689 ) {
11690 if self.git_blame_inline_enabled {
11691 self.git_blame_inline_enabled = false;
11692 self.show_git_blame_inline = false;
11693 self.show_git_blame_inline_delay_task.take();
11694 } else {
11695 self.git_blame_inline_enabled = true;
11696 self.start_git_blame_inline(user_triggered, cx);
11697 }
11698
11699 cx.notify();
11700 }
11701
11702 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11703 self.start_git_blame(user_triggered, cx);
11704
11705 if ProjectSettings::get_global(cx)
11706 .git
11707 .inline_blame_delay()
11708 .is_some()
11709 {
11710 self.start_inline_blame_timer(cx);
11711 } else {
11712 self.show_git_blame_inline = true
11713 }
11714 }
11715
11716 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11717 self.blame.as_ref()
11718 }
11719
11720 pub fn show_git_blame_gutter(&self) -> bool {
11721 self.show_git_blame_gutter
11722 }
11723
11724 pub fn render_git_blame_gutter(&self, cx: &WindowContext) -> bool {
11725 self.show_git_blame_gutter && self.has_blame_entries(cx)
11726 }
11727
11728 pub fn render_git_blame_inline(&self, cx: &WindowContext) -> bool {
11729 self.show_git_blame_inline
11730 && self.focus_handle.is_focused(cx)
11731 && !self.newest_selection_head_on_empty_line(cx)
11732 && self.has_blame_entries(cx)
11733 }
11734
11735 fn has_blame_entries(&self, cx: &WindowContext) -> bool {
11736 self.blame()
11737 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11738 }
11739
11740 fn newest_selection_head_on_empty_line(&self, cx: &WindowContext) -> bool {
11741 let cursor_anchor = self.selections.newest_anchor().head();
11742
11743 let snapshot = self.buffer.read(cx).snapshot(cx);
11744 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11745
11746 snapshot.line_len(buffer_row) == 0
11747 }
11748
11749 fn get_permalink_to_line(&self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11750 let buffer_and_selection = maybe!({
11751 let selection = self.selections.newest::<Point>(cx);
11752 let selection_range = selection.range();
11753
11754 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11755 (buffer, selection_range.start.row..selection_range.end.row)
11756 } else {
11757 let multi_buffer = self.buffer().read(cx);
11758 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
11759 let buffer_ranges = multi_buffer_snapshot.range_to_buffer_ranges(selection_range);
11760
11761 let (excerpt, range) = if selection.reversed {
11762 buffer_ranges.first()
11763 } else {
11764 buffer_ranges.last()
11765 }?;
11766
11767 let snapshot = excerpt.buffer();
11768 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11769 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11770 (
11771 multi_buffer.buffer(excerpt.buffer_id()).unwrap().clone(),
11772 selection,
11773 )
11774 };
11775
11776 Some((buffer, selection))
11777 });
11778
11779 let Some((buffer, selection)) = buffer_and_selection else {
11780 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11781 };
11782
11783 let Some(project) = self.project.as_ref() else {
11784 return Task::ready(Err(anyhow!("editor does not have project")));
11785 };
11786
11787 project.update(cx, |project, cx| {
11788 project.get_permalink_to_line(&buffer, selection, cx)
11789 })
11790 }
11791
11792 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11793 let permalink_task = self.get_permalink_to_line(cx);
11794 let workspace = self.workspace();
11795
11796 cx.spawn(|_, mut cx| async move {
11797 match permalink_task.await {
11798 Ok(permalink) => {
11799 cx.update(|cx| {
11800 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11801 })
11802 .ok();
11803 }
11804 Err(err) => {
11805 let message = format!("Failed to copy permalink: {err}");
11806
11807 Err::<(), anyhow::Error>(err).log_err();
11808
11809 if let Some(workspace) = workspace {
11810 workspace
11811 .update(&mut cx, |workspace, cx| {
11812 struct CopyPermalinkToLine;
11813
11814 workspace.show_toast(
11815 Toast::new(
11816 NotificationId::unique::<CopyPermalinkToLine>(),
11817 message,
11818 ),
11819 cx,
11820 )
11821 })
11822 .ok();
11823 }
11824 }
11825 }
11826 })
11827 .detach();
11828 }
11829
11830 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11831 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11832 if let Some(file) = self.target_file(cx) {
11833 if let Some(path) = file.path().to_str() {
11834 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11835 }
11836 }
11837 }
11838
11839 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11840 let permalink_task = self.get_permalink_to_line(cx);
11841 let workspace = self.workspace();
11842
11843 cx.spawn(|_, mut cx| async move {
11844 match permalink_task.await {
11845 Ok(permalink) => {
11846 cx.update(|cx| {
11847 cx.open_url(permalink.as_ref());
11848 })
11849 .ok();
11850 }
11851 Err(err) => {
11852 let message = format!("Failed to open permalink: {err}");
11853
11854 Err::<(), anyhow::Error>(err).log_err();
11855
11856 if let Some(workspace) = workspace {
11857 workspace
11858 .update(&mut cx, |workspace, cx| {
11859 struct OpenPermalinkToLine;
11860
11861 workspace.show_toast(
11862 Toast::new(
11863 NotificationId::unique::<OpenPermalinkToLine>(),
11864 message,
11865 ),
11866 cx,
11867 )
11868 })
11869 .ok();
11870 }
11871 }
11872 }
11873 })
11874 .detach();
11875 }
11876
11877 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11878 self.insert_uuid(UuidVersion::V4, cx);
11879 }
11880
11881 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11882 self.insert_uuid(UuidVersion::V7, cx);
11883 }
11884
11885 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11886 self.transact(cx, |this, cx| {
11887 let edits = this
11888 .selections
11889 .all::<Point>(cx)
11890 .into_iter()
11891 .map(|selection| {
11892 let uuid = match version {
11893 UuidVersion::V4 => uuid::Uuid::new_v4(),
11894 UuidVersion::V7 => uuid::Uuid::now_v7(),
11895 };
11896
11897 (selection.range(), uuid.to_string())
11898 });
11899 this.edit(edits, cx);
11900 this.refresh_inline_completion(true, false, cx);
11901 });
11902 }
11903
11904 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11905 /// last highlight added will be used.
11906 ///
11907 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11908 pub fn highlight_rows<T: 'static>(
11909 &mut self,
11910 range: Range<Anchor>,
11911 color: Hsla,
11912 should_autoscroll: bool,
11913 cx: &mut ViewContext<Self>,
11914 ) {
11915 let snapshot = self.buffer().read(cx).snapshot(cx);
11916 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11917 let ix = row_highlights.binary_search_by(|highlight| {
11918 Ordering::Equal
11919 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11920 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11921 });
11922
11923 if let Err(mut ix) = ix {
11924 let index = post_inc(&mut self.highlight_order);
11925
11926 // If this range intersects with the preceding highlight, then merge it with
11927 // the preceding highlight. Otherwise insert a new highlight.
11928 let mut merged = false;
11929 if ix > 0 {
11930 let prev_highlight = &mut row_highlights[ix - 1];
11931 if prev_highlight
11932 .range
11933 .end
11934 .cmp(&range.start, &snapshot)
11935 .is_ge()
11936 {
11937 ix -= 1;
11938 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11939 prev_highlight.range.end = range.end;
11940 }
11941 merged = true;
11942 prev_highlight.index = index;
11943 prev_highlight.color = color;
11944 prev_highlight.should_autoscroll = should_autoscroll;
11945 }
11946 }
11947
11948 if !merged {
11949 row_highlights.insert(
11950 ix,
11951 RowHighlight {
11952 range: range.clone(),
11953 index,
11954 color,
11955 should_autoscroll,
11956 },
11957 );
11958 }
11959
11960 // If any of the following highlights intersect with this one, merge them.
11961 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11962 let highlight = &row_highlights[ix];
11963 if next_highlight
11964 .range
11965 .start
11966 .cmp(&highlight.range.end, &snapshot)
11967 .is_le()
11968 {
11969 if next_highlight
11970 .range
11971 .end
11972 .cmp(&highlight.range.end, &snapshot)
11973 .is_gt()
11974 {
11975 row_highlights[ix].range.end = next_highlight.range.end;
11976 }
11977 row_highlights.remove(ix + 1);
11978 } else {
11979 break;
11980 }
11981 }
11982 }
11983 }
11984
11985 /// Remove any highlighted row ranges of the given type that intersect the
11986 /// given ranges.
11987 pub fn remove_highlighted_rows<T: 'static>(
11988 &mut self,
11989 ranges_to_remove: Vec<Range<Anchor>>,
11990 cx: &mut ViewContext<Self>,
11991 ) {
11992 let snapshot = self.buffer().read(cx).snapshot(cx);
11993 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11994 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11995 row_highlights.retain(|highlight| {
11996 while let Some(range_to_remove) = ranges_to_remove.peek() {
11997 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11998 Ordering::Less | Ordering::Equal => {
11999 ranges_to_remove.next();
12000 }
12001 Ordering::Greater => {
12002 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
12003 Ordering::Less | Ordering::Equal => {
12004 return false;
12005 }
12006 Ordering::Greater => break,
12007 }
12008 }
12009 }
12010 }
12011
12012 true
12013 })
12014 }
12015
12016 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
12017 pub fn clear_row_highlights<T: 'static>(&mut self) {
12018 self.highlighted_rows.remove(&TypeId::of::<T>());
12019 }
12020
12021 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
12022 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
12023 self.highlighted_rows
12024 .get(&TypeId::of::<T>())
12025 .map_or(&[] as &[_], |vec| vec.as_slice())
12026 .iter()
12027 .map(|highlight| (highlight.range.clone(), highlight.color))
12028 }
12029
12030 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
12031 /// Returns a map of display rows that are highlighted and their corresponding highlight color.
12032 /// Allows to ignore certain kinds of highlights.
12033 pub fn highlighted_display_rows(&self, cx: &mut WindowContext) -> BTreeMap<DisplayRow, Hsla> {
12034 let snapshot = self.snapshot(cx);
12035 let mut used_highlight_orders = HashMap::default();
12036 self.highlighted_rows
12037 .iter()
12038 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
12039 .fold(
12040 BTreeMap::<DisplayRow, Hsla>::new(),
12041 |mut unique_rows, highlight| {
12042 let start = highlight.range.start.to_display_point(&snapshot);
12043 let end = highlight.range.end.to_display_point(&snapshot);
12044 let start_row = start.row().0;
12045 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
12046 && end.column() == 0
12047 {
12048 end.row().0.saturating_sub(1)
12049 } else {
12050 end.row().0
12051 };
12052 for row in start_row..=end_row {
12053 let used_index =
12054 used_highlight_orders.entry(row).or_insert(highlight.index);
12055 if highlight.index >= *used_index {
12056 *used_index = highlight.index;
12057 unique_rows.insert(DisplayRow(row), highlight.color);
12058 }
12059 }
12060 unique_rows
12061 },
12062 )
12063 }
12064
12065 pub fn highlighted_display_row_for_autoscroll(
12066 &self,
12067 snapshot: &DisplaySnapshot,
12068 ) -> Option<DisplayRow> {
12069 self.highlighted_rows
12070 .values()
12071 .flat_map(|highlighted_rows| highlighted_rows.iter())
12072 .filter_map(|highlight| {
12073 if highlight.should_autoscroll {
12074 Some(highlight.range.start.to_display_point(snapshot).row())
12075 } else {
12076 None
12077 }
12078 })
12079 .min()
12080 }
12081
12082 pub fn set_search_within_ranges(
12083 &mut self,
12084 ranges: &[Range<Anchor>],
12085 cx: &mut ViewContext<Self>,
12086 ) {
12087 self.highlight_background::<SearchWithinRange>(
12088 ranges,
12089 |colors| colors.editor_document_highlight_read_background,
12090 cx,
12091 )
12092 }
12093
12094 pub fn set_breadcrumb_header(&mut self, new_header: String) {
12095 self.breadcrumb_header = Some(new_header);
12096 }
12097
12098 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12099 self.clear_background_highlights::<SearchWithinRange>(cx);
12100 }
12101
12102 pub fn highlight_background<T: 'static>(
12103 &mut self,
12104 ranges: &[Range<Anchor>],
12105 color_fetcher: fn(&ThemeColors) -> Hsla,
12106 cx: &mut ViewContext<Self>,
12107 ) {
12108 self.background_highlights
12109 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12110 self.scrollbar_marker_state.dirty = true;
12111 cx.notify();
12112 }
12113
12114 pub fn clear_background_highlights<T: 'static>(
12115 &mut self,
12116 cx: &mut ViewContext<Self>,
12117 ) -> Option<BackgroundHighlight> {
12118 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12119 if !text_highlights.1.is_empty() {
12120 self.scrollbar_marker_state.dirty = true;
12121 cx.notify();
12122 }
12123 Some(text_highlights)
12124 }
12125
12126 pub fn highlight_gutter<T: 'static>(
12127 &mut self,
12128 ranges: &[Range<Anchor>],
12129 color_fetcher: fn(&AppContext) -> Hsla,
12130 cx: &mut ViewContext<Self>,
12131 ) {
12132 self.gutter_highlights
12133 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12134 cx.notify();
12135 }
12136
12137 pub fn clear_gutter_highlights<T: 'static>(
12138 &mut self,
12139 cx: &mut ViewContext<Self>,
12140 ) -> Option<GutterHighlight> {
12141 cx.notify();
12142 self.gutter_highlights.remove(&TypeId::of::<T>())
12143 }
12144
12145 #[cfg(feature = "test-support")]
12146 pub fn all_text_background_highlights(
12147 &self,
12148 cx: &mut ViewContext<Self>,
12149 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12150 let snapshot = self.snapshot(cx);
12151 let buffer = &snapshot.buffer_snapshot;
12152 let start = buffer.anchor_before(0);
12153 let end = buffer.anchor_after(buffer.len());
12154 let theme = cx.theme().colors();
12155 self.background_highlights_in_range(start..end, &snapshot, theme)
12156 }
12157
12158 #[cfg(feature = "test-support")]
12159 pub fn search_background_highlights(
12160 &mut self,
12161 cx: &mut ViewContext<Self>,
12162 ) -> Vec<Range<Point>> {
12163 let snapshot = self.buffer().read(cx).snapshot(cx);
12164
12165 let highlights = self
12166 .background_highlights
12167 .get(&TypeId::of::<items::BufferSearchHighlights>());
12168
12169 if let Some((_color, ranges)) = highlights {
12170 ranges
12171 .iter()
12172 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12173 .collect_vec()
12174 } else {
12175 vec![]
12176 }
12177 }
12178
12179 fn document_highlights_for_position<'a>(
12180 &'a self,
12181 position: Anchor,
12182 buffer: &'a MultiBufferSnapshot,
12183 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12184 let read_highlights = self
12185 .background_highlights
12186 .get(&TypeId::of::<DocumentHighlightRead>())
12187 .map(|h| &h.1);
12188 let write_highlights = self
12189 .background_highlights
12190 .get(&TypeId::of::<DocumentHighlightWrite>())
12191 .map(|h| &h.1);
12192 let left_position = position.bias_left(buffer);
12193 let right_position = position.bias_right(buffer);
12194 read_highlights
12195 .into_iter()
12196 .chain(write_highlights)
12197 .flat_map(move |ranges| {
12198 let start_ix = match ranges.binary_search_by(|probe| {
12199 let cmp = probe.end.cmp(&left_position, buffer);
12200 if cmp.is_ge() {
12201 Ordering::Greater
12202 } else {
12203 Ordering::Less
12204 }
12205 }) {
12206 Ok(i) | Err(i) => i,
12207 };
12208
12209 ranges[start_ix..]
12210 .iter()
12211 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12212 })
12213 }
12214
12215 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12216 self.background_highlights
12217 .get(&TypeId::of::<T>())
12218 .map_or(false, |(_, highlights)| !highlights.is_empty())
12219 }
12220
12221 pub fn background_highlights_in_range(
12222 &self,
12223 search_range: Range<Anchor>,
12224 display_snapshot: &DisplaySnapshot,
12225 theme: &ThemeColors,
12226 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12227 let mut results = Vec::new();
12228 for (color_fetcher, ranges) in self.background_highlights.values() {
12229 let color = color_fetcher(theme);
12230 let start_ix = match ranges.binary_search_by(|probe| {
12231 let cmp = probe
12232 .end
12233 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12234 if cmp.is_gt() {
12235 Ordering::Greater
12236 } else {
12237 Ordering::Less
12238 }
12239 }) {
12240 Ok(i) | Err(i) => i,
12241 };
12242 for range in &ranges[start_ix..] {
12243 if range
12244 .start
12245 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12246 .is_ge()
12247 {
12248 break;
12249 }
12250
12251 let start = range.start.to_display_point(display_snapshot);
12252 let end = range.end.to_display_point(display_snapshot);
12253 results.push((start..end, color))
12254 }
12255 }
12256 results
12257 }
12258
12259 pub fn background_highlight_row_ranges<T: 'static>(
12260 &self,
12261 search_range: Range<Anchor>,
12262 display_snapshot: &DisplaySnapshot,
12263 count: usize,
12264 ) -> Vec<RangeInclusive<DisplayPoint>> {
12265 let mut results = Vec::new();
12266 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12267 return vec![];
12268 };
12269
12270 let start_ix = match ranges.binary_search_by(|probe| {
12271 let cmp = probe
12272 .end
12273 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12274 if cmp.is_gt() {
12275 Ordering::Greater
12276 } else {
12277 Ordering::Less
12278 }
12279 }) {
12280 Ok(i) | Err(i) => i,
12281 };
12282 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12283 if let (Some(start_display), Some(end_display)) = (start, end) {
12284 results.push(
12285 start_display.to_display_point(display_snapshot)
12286 ..=end_display.to_display_point(display_snapshot),
12287 );
12288 }
12289 };
12290 let mut start_row: Option<Point> = None;
12291 let mut end_row: Option<Point> = None;
12292 if ranges.len() > count {
12293 return Vec::new();
12294 }
12295 for range in &ranges[start_ix..] {
12296 if range
12297 .start
12298 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12299 .is_ge()
12300 {
12301 break;
12302 }
12303 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12304 if let Some(current_row) = &end_row {
12305 if end.row == current_row.row {
12306 continue;
12307 }
12308 }
12309 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12310 if start_row.is_none() {
12311 assert_eq!(end_row, None);
12312 start_row = Some(start);
12313 end_row = Some(end);
12314 continue;
12315 }
12316 if let Some(current_end) = end_row.as_mut() {
12317 if start.row > current_end.row + 1 {
12318 push_region(start_row, end_row);
12319 start_row = Some(start);
12320 end_row = Some(end);
12321 } else {
12322 // Merge two hunks.
12323 *current_end = end;
12324 }
12325 } else {
12326 unreachable!();
12327 }
12328 }
12329 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12330 push_region(start_row, end_row);
12331 results
12332 }
12333
12334 pub fn gutter_highlights_in_range(
12335 &self,
12336 search_range: Range<Anchor>,
12337 display_snapshot: &DisplaySnapshot,
12338 cx: &AppContext,
12339 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12340 let mut results = Vec::new();
12341 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12342 let color = color_fetcher(cx);
12343 let start_ix = match ranges.binary_search_by(|probe| {
12344 let cmp = probe
12345 .end
12346 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12347 if cmp.is_gt() {
12348 Ordering::Greater
12349 } else {
12350 Ordering::Less
12351 }
12352 }) {
12353 Ok(i) | Err(i) => i,
12354 };
12355 for range in &ranges[start_ix..] {
12356 if range
12357 .start
12358 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12359 .is_ge()
12360 {
12361 break;
12362 }
12363
12364 let start = range.start.to_display_point(display_snapshot);
12365 let end = range.end.to_display_point(display_snapshot);
12366 results.push((start..end, color))
12367 }
12368 }
12369 results
12370 }
12371
12372 /// Get the text ranges corresponding to the redaction query
12373 pub fn redacted_ranges(
12374 &self,
12375 search_range: Range<Anchor>,
12376 display_snapshot: &DisplaySnapshot,
12377 cx: &WindowContext,
12378 ) -> Vec<Range<DisplayPoint>> {
12379 display_snapshot
12380 .buffer_snapshot
12381 .redacted_ranges(search_range, |file| {
12382 if let Some(file) = file {
12383 file.is_private()
12384 && EditorSettings::get(
12385 Some(SettingsLocation {
12386 worktree_id: file.worktree_id(cx),
12387 path: file.path().as_ref(),
12388 }),
12389 cx,
12390 )
12391 .redact_private_values
12392 } else {
12393 false
12394 }
12395 })
12396 .map(|range| {
12397 range.start.to_display_point(display_snapshot)
12398 ..range.end.to_display_point(display_snapshot)
12399 })
12400 .collect()
12401 }
12402
12403 pub fn highlight_text<T: 'static>(
12404 &mut self,
12405 ranges: Vec<Range<Anchor>>,
12406 style: HighlightStyle,
12407 cx: &mut ViewContext<Self>,
12408 ) {
12409 self.display_map.update(cx, |map, _| {
12410 map.highlight_text(TypeId::of::<T>(), ranges, style)
12411 });
12412 cx.notify();
12413 }
12414
12415 pub(crate) fn highlight_inlays<T: 'static>(
12416 &mut self,
12417 highlights: Vec<InlayHighlight>,
12418 style: HighlightStyle,
12419 cx: &mut ViewContext<Self>,
12420 ) {
12421 self.display_map.update(cx, |map, _| {
12422 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12423 });
12424 cx.notify();
12425 }
12426
12427 pub fn text_highlights<'a, T: 'static>(
12428 &'a self,
12429 cx: &'a AppContext,
12430 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12431 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12432 }
12433
12434 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12435 let cleared = self
12436 .display_map
12437 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12438 if cleared {
12439 cx.notify();
12440 }
12441 }
12442
12443 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12444 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12445 && self.focus_handle.is_focused(cx)
12446 }
12447
12448 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12449 self.show_cursor_when_unfocused = is_enabled;
12450 cx.notify();
12451 }
12452
12453 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12454 self.project
12455 .as_ref()
12456 .map(|project| project.read(cx).lsp_store())
12457 }
12458
12459 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12460 cx.notify();
12461 }
12462
12463 fn on_buffer_event(
12464 &mut self,
12465 multibuffer: Model<MultiBuffer>,
12466 event: &multi_buffer::Event,
12467 cx: &mut ViewContext<Self>,
12468 ) {
12469 match event {
12470 multi_buffer::Event::Edited {
12471 singleton_buffer_edited,
12472 edited_buffer: buffer_edited,
12473 } => {
12474 self.scrollbar_marker_state.dirty = true;
12475 self.active_indent_guides_state.dirty = true;
12476 self.refresh_active_diagnostics(cx);
12477 self.refresh_code_actions(cx);
12478 if self.has_active_inline_completion() {
12479 self.update_visible_inline_completion(cx);
12480 }
12481 if let Some(buffer) = buffer_edited {
12482 let buffer_id = buffer.read(cx).remote_id();
12483 if !self.registered_buffers.contains_key(&buffer_id) {
12484 if let Some(lsp_store) = self.lsp_store(cx) {
12485 lsp_store.update(cx, |lsp_store, cx| {
12486 self.registered_buffers.insert(
12487 buffer_id,
12488 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12489 );
12490 })
12491 }
12492 }
12493 }
12494 cx.emit(EditorEvent::BufferEdited);
12495 cx.emit(SearchEvent::MatchesInvalidated);
12496 if *singleton_buffer_edited {
12497 if let Some(project) = &self.project {
12498 let project = project.read(cx);
12499 #[allow(clippy::mutable_key_type)]
12500 let languages_affected = multibuffer
12501 .read(cx)
12502 .all_buffers()
12503 .into_iter()
12504 .filter_map(|buffer| {
12505 let buffer = buffer.read(cx);
12506 let language = buffer.language()?;
12507 if project.is_local()
12508 && project
12509 .language_servers_for_local_buffer(buffer, cx)
12510 .count()
12511 == 0
12512 {
12513 None
12514 } else {
12515 Some(language)
12516 }
12517 })
12518 .cloned()
12519 .collect::<HashSet<_>>();
12520 if !languages_affected.is_empty() {
12521 self.refresh_inlay_hints(
12522 InlayHintRefreshReason::BufferEdited(languages_affected),
12523 cx,
12524 );
12525 }
12526 }
12527 }
12528
12529 let Some(project) = &self.project else { return };
12530 let (telemetry, is_via_ssh) = {
12531 let project = project.read(cx);
12532 let telemetry = project.client().telemetry().clone();
12533 let is_via_ssh = project.is_via_ssh();
12534 (telemetry, is_via_ssh)
12535 };
12536 refresh_linked_ranges(self, cx);
12537 telemetry.log_edit_event("editor", is_via_ssh);
12538 }
12539 multi_buffer::Event::ExcerptsAdded {
12540 buffer,
12541 predecessor,
12542 excerpts,
12543 } => {
12544 self.tasks_update_task = Some(self.refresh_runnables(cx));
12545 let buffer_id = buffer.read(cx).remote_id();
12546 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12547 if let Some(project) = &self.project {
12548 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12549 }
12550 }
12551 cx.emit(EditorEvent::ExcerptsAdded {
12552 buffer: buffer.clone(),
12553 predecessor: *predecessor,
12554 excerpts: excerpts.clone(),
12555 });
12556 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12557 }
12558 multi_buffer::Event::ExcerptsRemoved { ids } => {
12559 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12560 let buffer = self.buffer.read(cx);
12561 self.registered_buffers
12562 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12563 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12564 }
12565 multi_buffer::Event::ExcerptsEdited { ids } => {
12566 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12567 }
12568 multi_buffer::Event::ExcerptsExpanded { ids } => {
12569 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12570 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12571 }
12572 multi_buffer::Event::Reparsed(buffer_id) => {
12573 self.tasks_update_task = Some(self.refresh_runnables(cx));
12574
12575 cx.emit(EditorEvent::Reparsed(*buffer_id));
12576 }
12577 multi_buffer::Event::LanguageChanged(buffer_id) => {
12578 linked_editing_ranges::refresh_linked_ranges(self, cx);
12579 cx.emit(EditorEvent::Reparsed(*buffer_id));
12580 cx.notify();
12581 }
12582 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12583 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12584 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12585 cx.emit(EditorEvent::TitleChanged)
12586 }
12587 // multi_buffer::Event::DiffBaseChanged => {
12588 // self.scrollbar_marker_state.dirty = true;
12589 // cx.emit(EditorEvent::DiffBaseChanged);
12590 // cx.notify();
12591 // }
12592 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12593 multi_buffer::Event::DiagnosticsUpdated => {
12594 self.refresh_active_diagnostics(cx);
12595 self.scrollbar_marker_state.dirty = true;
12596 cx.notify();
12597 }
12598 _ => {}
12599 };
12600 }
12601
12602 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12603 cx.notify();
12604 }
12605
12606 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12607 self.tasks_update_task = Some(self.refresh_runnables(cx));
12608 self.refresh_inline_completion(true, false, cx);
12609 self.refresh_inlay_hints(
12610 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12611 self.selections.newest_anchor().head(),
12612 &self.buffer.read(cx).snapshot(cx),
12613 cx,
12614 )),
12615 cx,
12616 );
12617
12618 let old_cursor_shape = self.cursor_shape;
12619
12620 {
12621 let editor_settings = EditorSettings::get_global(cx);
12622 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12623 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12624 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12625 }
12626
12627 if old_cursor_shape != self.cursor_shape {
12628 cx.emit(EditorEvent::CursorShapeChanged);
12629 }
12630
12631 let project_settings = ProjectSettings::get_global(cx);
12632 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12633
12634 if self.mode == EditorMode::Full {
12635 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12636 if self.git_blame_inline_enabled != inline_blame_enabled {
12637 self.toggle_git_blame_inline_internal(false, cx);
12638 }
12639 }
12640
12641 cx.notify();
12642 }
12643
12644 pub fn set_searchable(&mut self, searchable: bool) {
12645 self.searchable = searchable;
12646 }
12647
12648 pub fn searchable(&self) -> bool {
12649 self.searchable
12650 }
12651
12652 fn open_proposed_changes_editor(
12653 &mut self,
12654 _: &OpenProposedChangesEditor,
12655 cx: &mut ViewContext<Self>,
12656 ) {
12657 let Some(workspace) = self.workspace() else {
12658 cx.propagate();
12659 return;
12660 };
12661
12662 let selections = self.selections.all::<usize>(cx);
12663 let multi_buffer = self.buffer.read(cx);
12664 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
12665 let mut new_selections_by_buffer = HashMap::default();
12666 for selection in selections {
12667 for (excerpt, range) in
12668 multi_buffer_snapshot.range_to_buffer_ranges(selection.start..selection.end)
12669 {
12670 let mut range = range.to_point(excerpt.buffer());
12671 range.start.column = 0;
12672 range.end.column = excerpt.buffer().line_len(range.end.row);
12673 new_selections_by_buffer
12674 .entry(multi_buffer.buffer(excerpt.buffer_id()).unwrap())
12675 .or_insert(Vec::new())
12676 .push(range)
12677 }
12678 }
12679
12680 let proposed_changes_buffers = new_selections_by_buffer
12681 .into_iter()
12682 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12683 .collect::<Vec<_>>();
12684 let proposed_changes_editor = cx.new_view(|cx| {
12685 ProposedChangesEditor::new(
12686 "Proposed changes",
12687 proposed_changes_buffers,
12688 self.project.clone(),
12689 cx,
12690 )
12691 });
12692
12693 cx.window_context().defer(move |cx| {
12694 workspace.update(cx, |workspace, cx| {
12695 workspace.active_pane().update(cx, |pane, cx| {
12696 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12697 });
12698 });
12699 });
12700 }
12701
12702 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12703 self.open_excerpts_common(None, true, cx)
12704 }
12705
12706 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12707 self.open_excerpts_common(None, false, cx)
12708 }
12709
12710 fn open_excerpts_common(
12711 &mut self,
12712 jump_data: Option<JumpData>,
12713 split: bool,
12714 cx: &mut ViewContext<Self>,
12715 ) {
12716 let Some(workspace) = self.workspace() else {
12717 cx.propagate();
12718 return;
12719 };
12720
12721 if self.buffer.read(cx).is_singleton() {
12722 cx.propagate();
12723 return;
12724 }
12725
12726 let mut new_selections_by_buffer = HashMap::default();
12727 match &jump_data {
12728 Some(JumpData::MultiBufferPoint {
12729 excerpt_id,
12730 position,
12731 anchor,
12732 line_offset_from_top,
12733 }) => {
12734 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12735 if let Some(buffer) = multi_buffer_snapshot
12736 .buffer_id_for_excerpt(*excerpt_id)
12737 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12738 {
12739 let buffer_snapshot = buffer.read(cx).snapshot();
12740 let jump_to_point = if buffer_snapshot.can_resolve(anchor) {
12741 language::ToPoint::to_point(anchor, &buffer_snapshot)
12742 } else {
12743 buffer_snapshot.clip_point(*position, Bias::Left)
12744 };
12745 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12746 new_selections_by_buffer.insert(
12747 buffer,
12748 (
12749 vec![jump_to_offset..jump_to_offset],
12750 Some(*line_offset_from_top),
12751 ),
12752 );
12753 }
12754 }
12755 Some(JumpData::MultiBufferRow {
12756 row,
12757 line_offset_from_top,
12758 }) => {
12759 let point = MultiBufferPoint::new(row.0, 0);
12760 if let Some((buffer, buffer_point, _)) =
12761 self.buffer.read(cx).point_to_buffer_point(point, cx)
12762 {
12763 let buffer_offset = buffer.read(cx).point_to_offset(buffer_point);
12764 new_selections_by_buffer
12765 .entry(buffer)
12766 .or_insert((Vec::new(), Some(*line_offset_from_top)))
12767 .0
12768 .push(buffer_offset..buffer_offset)
12769 }
12770 }
12771 None => {
12772 let selections = self.selections.all::<usize>(cx);
12773 let multi_buffer = self.buffer.read(cx);
12774 for selection in selections {
12775 for (excerpt, mut range) in multi_buffer
12776 .snapshot(cx)
12777 .range_to_buffer_ranges(selection.range())
12778 {
12779 // When editing branch buffers, jump to the corresponding location
12780 // in their base buffer.
12781 let mut buffer_handle = multi_buffer.buffer(excerpt.buffer_id()).unwrap();
12782 let buffer = buffer_handle.read(cx);
12783 if let Some(base_buffer) = buffer.base_buffer() {
12784 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12785 buffer_handle = base_buffer;
12786 }
12787
12788 if selection.reversed {
12789 mem::swap(&mut range.start, &mut range.end);
12790 }
12791 new_selections_by_buffer
12792 .entry(buffer_handle)
12793 .or_insert((Vec::new(), None))
12794 .0
12795 .push(range)
12796 }
12797 }
12798 }
12799 }
12800
12801 if new_selections_by_buffer.is_empty() {
12802 return;
12803 }
12804
12805 // We defer the pane interaction because we ourselves are a workspace item
12806 // and activating a new item causes the pane to call a method on us reentrantly,
12807 // which panics if we're on the stack.
12808 cx.window_context().defer(move |cx| {
12809 workspace.update(cx, |workspace, cx| {
12810 let pane = if split {
12811 workspace.adjacent_pane(cx)
12812 } else {
12813 workspace.active_pane().clone()
12814 };
12815
12816 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12817 let editor = buffer
12818 .read(cx)
12819 .file()
12820 .is_none()
12821 .then(|| {
12822 // Handle file-less buffers separately: those are not really the project items, so won't have a project path or entity id,
12823 // so `workspace.open_project_item` will never find them, always opening a new editor.
12824 // Instead, we try to activate the existing editor in the pane first.
12825 let (editor, pane_item_index) =
12826 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12827 let editor = item.downcast::<Editor>()?;
12828 let singleton_buffer =
12829 editor.read(cx).buffer().read(cx).as_singleton()?;
12830 if singleton_buffer == buffer {
12831 Some((editor, i))
12832 } else {
12833 None
12834 }
12835 })?;
12836 pane.update(cx, |pane, cx| {
12837 pane.activate_item(pane_item_index, true, true, cx)
12838 });
12839 Some(editor)
12840 })
12841 .flatten()
12842 .unwrap_or_else(|| {
12843 workspace.open_project_item::<Self>(
12844 pane.clone(),
12845 buffer,
12846 true,
12847 true,
12848 cx,
12849 )
12850 });
12851
12852 editor.update(cx, |editor, cx| {
12853 let autoscroll = match scroll_offset {
12854 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12855 None => Autoscroll::newest(),
12856 };
12857 let nav_history = editor.nav_history.take();
12858 editor.change_selections(Some(autoscroll), cx, |s| {
12859 s.select_ranges(ranges);
12860 });
12861 editor.nav_history = nav_history;
12862 });
12863 }
12864 })
12865 });
12866 }
12867
12868 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12869 let snapshot = self.buffer.read(cx).read(cx);
12870 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12871 Some(
12872 ranges
12873 .iter()
12874 .map(move |range| {
12875 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12876 })
12877 .collect(),
12878 )
12879 }
12880
12881 fn selection_replacement_ranges(
12882 &self,
12883 range: Range<OffsetUtf16>,
12884 cx: &mut AppContext,
12885 ) -> Vec<Range<OffsetUtf16>> {
12886 let selections = self.selections.all::<OffsetUtf16>(cx);
12887 let newest_selection = selections
12888 .iter()
12889 .max_by_key(|selection| selection.id)
12890 .unwrap();
12891 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12892 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12893 let snapshot = self.buffer.read(cx).read(cx);
12894 selections
12895 .into_iter()
12896 .map(|mut selection| {
12897 selection.start.0 =
12898 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12899 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12900 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12901 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12902 })
12903 .collect()
12904 }
12905
12906 fn report_editor_event(
12907 &self,
12908 event_type: &'static str,
12909 file_extension: Option<String>,
12910 cx: &AppContext,
12911 ) {
12912 if cfg!(any(test, feature = "test-support")) {
12913 return;
12914 }
12915
12916 let Some(project) = &self.project else { return };
12917
12918 // If None, we are in a file without an extension
12919 let file = self
12920 .buffer
12921 .read(cx)
12922 .as_singleton()
12923 .and_then(|b| b.read(cx).file());
12924 let file_extension = file_extension.or(file
12925 .as_ref()
12926 .and_then(|file| Path::new(file.file_name(cx)).extension())
12927 .and_then(|e| e.to_str())
12928 .map(|a| a.to_string()));
12929
12930 let vim_mode = cx
12931 .global::<SettingsStore>()
12932 .raw_user_settings()
12933 .get("vim_mode")
12934 == Some(&serde_json::Value::Bool(true));
12935
12936 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12937 == language::language_settings::InlineCompletionProvider::Copilot;
12938 let copilot_enabled_for_language = self
12939 .buffer
12940 .read(cx)
12941 .settings_at(0, cx)
12942 .show_inline_completions;
12943
12944 let project = project.read(cx);
12945 telemetry::event!(
12946 event_type,
12947 file_extension,
12948 vim_mode,
12949 copilot_enabled,
12950 copilot_enabled_for_language,
12951 is_via_ssh = project.is_via_ssh(),
12952 );
12953 }
12954
12955 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12956 /// with each line being an array of {text, highlight} objects.
12957 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12958 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12959 return;
12960 };
12961
12962 #[derive(Serialize)]
12963 struct Chunk<'a> {
12964 text: String,
12965 highlight: Option<&'a str>,
12966 }
12967
12968 let snapshot = buffer.read(cx).snapshot();
12969 let range = self
12970 .selected_text_range(false, cx)
12971 .and_then(|selection| {
12972 if selection.range.is_empty() {
12973 None
12974 } else {
12975 Some(selection.range)
12976 }
12977 })
12978 .unwrap_or_else(|| 0..snapshot.len());
12979
12980 let chunks = snapshot.chunks(range, true);
12981 let mut lines = Vec::new();
12982 let mut line: VecDeque<Chunk> = VecDeque::new();
12983
12984 let Some(style) = self.style.as_ref() else {
12985 return;
12986 };
12987
12988 for chunk in chunks {
12989 let highlight = chunk
12990 .syntax_highlight_id
12991 .and_then(|id| id.name(&style.syntax));
12992 let mut chunk_lines = chunk.text.split('\n').peekable();
12993 while let Some(text) = chunk_lines.next() {
12994 let mut merged_with_last_token = false;
12995 if let Some(last_token) = line.back_mut() {
12996 if last_token.highlight == highlight {
12997 last_token.text.push_str(text);
12998 merged_with_last_token = true;
12999 }
13000 }
13001
13002 if !merged_with_last_token {
13003 line.push_back(Chunk {
13004 text: text.into(),
13005 highlight,
13006 });
13007 }
13008
13009 if chunk_lines.peek().is_some() {
13010 if line.len() > 1 && line.front().unwrap().text.is_empty() {
13011 line.pop_front();
13012 }
13013 if line.len() > 1 && line.back().unwrap().text.is_empty() {
13014 line.pop_back();
13015 }
13016
13017 lines.push(mem::take(&mut line));
13018 }
13019 }
13020 }
13021
13022 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
13023 return;
13024 };
13025 cx.write_to_clipboard(ClipboardItem::new_string(lines));
13026 }
13027
13028 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
13029 self.request_autoscroll(Autoscroll::newest(), cx);
13030 let position = self.selections.newest_display(cx).start;
13031 mouse_context_menu::deploy_context_menu(self, None, position, cx);
13032 }
13033
13034 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
13035 &self.inlay_hint_cache
13036 }
13037
13038 pub fn replay_insert_event(
13039 &mut self,
13040 text: &str,
13041 relative_utf16_range: Option<Range<isize>>,
13042 cx: &mut ViewContext<Self>,
13043 ) {
13044 if !self.input_enabled {
13045 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13046 return;
13047 }
13048 if let Some(relative_utf16_range) = relative_utf16_range {
13049 let selections = self.selections.all::<OffsetUtf16>(cx);
13050 self.change_selections(None, cx, |s| {
13051 let new_ranges = selections.into_iter().map(|range| {
13052 let start = OffsetUtf16(
13053 range
13054 .head()
13055 .0
13056 .saturating_add_signed(relative_utf16_range.start),
13057 );
13058 let end = OffsetUtf16(
13059 range
13060 .head()
13061 .0
13062 .saturating_add_signed(relative_utf16_range.end),
13063 );
13064 start..end
13065 });
13066 s.select_ranges(new_ranges);
13067 });
13068 }
13069
13070 self.handle_input(text, cx);
13071 }
13072
13073 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
13074 let Some(provider) = self.semantics_provider.as_ref() else {
13075 return false;
13076 };
13077
13078 let mut supports = false;
13079 self.buffer().read(cx).for_each_buffer(|buffer| {
13080 supports |= provider.supports_inlay_hints(buffer, cx);
13081 });
13082 supports
13083 }
13084
13085 pub fn focus(&self, cx: &mut WindowContext) {
13086 cx.focus(&self.focus_handle)
13087 }
13088
13089 pub fn is_focused(&self, cx: &WindowContext) -> bool {
13090 self.focus_handle.is_focused(cx)
13091 }
13092
13093 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
13094 cx.emit(EditorEvent::Focused);
13095
13096 if let Some(descendant) = self
13097 .last_focused_descendant
13098 .take()
13099 .and_then(|descendant| descendant.upgrade())
13100 {
13101 cx.focus(&descendant);
13102 } else {
13103 if let Some(blame) = self.blame.as_ref() {
13104 blame.update(cx, GitBlame::focus)
13105 }
13106
13107 self.blink_manager.update(cx, BlinkManager::enable);
13108 self.show_cursor_names(cx);
13109 self.buffer.update(cx, |buffer, cx| {
13110 buffer.finalize_last_transaction(cx);
13111 if self.leader_peer_id.is_none() {
13112 buffer.set_active_selections(
13113 &self.selections.disjoint_anchors(),
13114 self.selections.line_mode,
13115 self.cursor_shape,
13116 cx,
13117 );
13118 }
13119 });
13120 }
13121 }
13122
13123 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
13124 cx.emit(EditorEvent::FocusedIn)
13125 }
13126
13127 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
13128 if event.blurred != self.focus_handle {
13129 self.last_focused_descendant = Some(event.blurred);
13130 }
13131 }
13132
13133 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
13134 self.blink_manager.update(cx, BlinkManager::disable);
13135 self.buffer
13136 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
13137
13138 if let Some(blame) = self.blame.as_ref() {
13139 blame.update(cx, GitBlame::blur)
13140 }
13141 if !self.hover_state.focused(cx) {
13142 hide_hover(self, cx);
13143 }
13144
13145 self.hide_context_menu(cx);
13146 cx.emit(EditorEvent::Blurred);
13147 cx.notify();
13148 }
13149
13150 pub fn register_action<A: Action>(
13151 &mut self,
13152 listener: impl Fn(&A, &mut WindowContext) + 'static,
13153 ) -> Subscription {
13154 let id = self.next_editor_action_id.post_inc();
13155 let listener = Arc::new(listener);
13156 self.editor_actions.borrow_mut().insert(
13157 id,
13158 Box::new(move |cx| {
13159 let cx = cx.window_context();
13160 let listener = listener.clone();
13161 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
13162 let action = action.downcast_ref().unwrap();
13163 if phase == DispatchPhase::Bubble {
13164 listener(action, cx)
13165 }
13166 })
13167 }),
13168 );
13169
13170 let editor_actions = self.editor_actions.clone();
13171 Subscription::new(move || {
13172 editor_actions.borrow_mut().remove(&id);
13173 })
13174 }
13175
13176 pub fn file_header_size(&self) -> u32 {
13177 FILE_HEADER_HEIGHT
13178 }
13179
13180 pub fn revert(
13181 &mut self,
13182 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13183 cx: &mut ViewContext<Self>,
13184 ) {
13185 self.buffer().update(cx, |multi_buffer, cx| {
13186 for (buffer_id, changes) in revert_changes {
13187 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13188 buffer.update(cx, |buffer, cx| {
13189 buffer.edit(
13190 changes.into_iter().map(|(range, text)| {
13191 (range, text.to_string().map(Arc::<str>::from))
13192 }),
13193 None,
13194 cx,
13195 );
13196 });
13197 }
13198 }
13199 });
13200 self.change_selections(None, cx, |selections| selections.refresh());
13201 }
13202
13203 pub fn to_pixel_point(
13204 &self,
13205 source: multi_buffer::Anchor,
13206 editor_snapshot: &EditorSnapshot,
13207 cx: &mut ViewContext<Self>,
13208 ) -> Option<gpui::Point<Pixels>> {
13209 let source_point = source.to_display_point(editor_snapshot);
13210 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13211 }
13212
13213 pub fn display_to_pixel_point(
13214 &self,
13215 source: DisplayPoint,
13216 editor_snapshot: &EditorSnapshot,
13217 cx: &WindowContext,
13218 ) -> Option<gpui::Point<Pixels>> {
13219 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13220 let text_layout_details = self.text_layout_details(cx);
13221 let scroll_top = text_layout_details
13222 .scroll_anchor
13223 .scroll_position(editor_snapshot)
13224 .y;
13225
13226 if source.row().as_f32() < scroll_top.floor() {
13227 return None;
13228 }
13229 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13230 let source_y = line_height * (source.row().as_f32() - scroll_top);
13231 Some(gpui::Point::new(source_x, source_y))
13232 }
13233
13234 pub fn has_active_completions_menu(&self) -> bool {
13235 self.context_menu.borrow().as_ref().map_or(false, |menu| {
13236 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
13237 })
13238 }
13239
13240 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13241 self.addons
13242 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13243 }
13244
13245 pub fn unregister_addon<T: Addon>(&mut self) {
13246 self.addons.remove(&std::any::TypeId::of::<T>());
13247 }
13248
13249 pub fn addon<T: Addon>(&self) -> Option<&T> {
13250 let type_id = std::any::TypeId::of::<T>();
13251 self.addons
13252 .get(&type_id)
13253 .and_then(|item| item.to_any().downcast_ref::<T>())
13254 }
13255
13256 pub fn add_change_set(
13257 &mut self,
13258 change_set: Model<BufferChangeSet>,
13259 cx: &mut ViewContext<Self>,
13260 ) {
13261 self.diff_map.add_change_set(change_set, cx);
13262 }
13263
13264 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
13265 let text_layout_details = self.text_layout_details(cx);
13266 let style = &text_layout_details.editor_style;
13267 let font_id = cx.text_system().resolve_font(&style.text.font());
13268 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13269 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13270
13271 let em_width = cx
13272 .text_system()
13273 .typographic_bounds(font_id, font_size, 'm')
13274 .unwrap()
13275 .size
13276 .width;
13277
13278 gpui::Point::new(em_width, line_height)
13279 }
13280}
13281
13282fn get_unstaged_changes_for_buffers(
13283 project: &Model<Project>,
13284 buffers: impl IntoIterator<Item = Model<Buffer>>,
13285 cx: &mut ViewContext<Editor>,
13286) {
13287 let mut tasks = Vec::new();
13288 project.update(cx, |project, cx| {
13289 for buffer in buffers {
13290 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
13291 }
13292 });
13293 cx.spawn(|this, mut cx| async move {
13294 let change_sets = futures::future::join_all(tasks).await;
13295 this.update(&mut cx, |this, cx| {
13296 for change_set in change_sets {
13297 if let Some(change_set) = change_set.log_err() {
13298 this.diff_map.add_change_set(change_set, cx);
13299 }
13300 }
13301 })
13302 .ok();
13303 })
13304 .detach();
13305}
13306
13307fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13308 let tab_size = tab_size.get() as usize;
13309 let mut width = offset;
13310
13311 for ch in text.chars() {
13312 width += if ch == '\t' {
13313 tab_size - (width % tab_size)
13314 } else {
13315 1
13316 };
13317 }
13318
13319 width - offset
13320}
13321
13322#[cfg(test)]
13323mod tests {
13324 use super::*;
13325
13326 #[test]
13327 fn test_string_size_with_expanded_tabs() {
13328 let nz = |val| NonZeroU32::new(val).unwrap();
13329 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13330 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13331 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13332 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13333 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13334 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13335 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13336 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13337 }
13338}
13339
13340/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13341struct WordBreakingTokenizer<'a> {
13342 input: &'a str,
13343}
13344
13345impl<'a> WordBreakingTokenizer<'a> {
13346 fn new(input: &'a str) -> Self {
13347 Self { input }
13348 }
13349}
13350
13351fn is_char_ideographic(ch: char) -> bool {
13352 use unicode_script::Script::*;
13353 use unicode_script::UnicodeScript;
13354 matches!(ch.script(), Han | Tangut | Yi)
13355}
13356
13357fn is_grapheme_ideographic(text: &str) -> bool {
13358 text.chars().any(is_char_ideographic)
13359}
13360
13361fn is_grapheme_whitespace(text: &str) -> bool {
13362 text.chars().any(|x| x.is_whitespace())
13363}
13364
13365fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13366 text.chars().next().map_or(false, |ch| {
13367 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13368 })
13369}
13370
13371#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13372struct WordBreakToken<'a> {
13373 token: &'a str,
13374 grapheme_len: usize,
13375 is_whitespace: bool,
13376}
13377
13378impl<'a> Iterator for WordBreakingTokenizer<'a> {
13379 /// Yields a span, the count of graphemes in the token, and whether it was
13380 /// whitespace. Note that it also breaks at word boundaries.
13381 type Item = WordBreakToken<'a>;
13382
13383 fn next(&mut self) -> Option<Self::Item> {
13384 use unicode_segmentation::UnicodeSegmentation;
13385 if self.input.is_empty() {
13386 return None;
13387 }
13388
13389 let mut iter = self.input.graphemes(true).peekable();
13390 let mut offset = 0;
13391 let mut graphemes = 0;
13392 if let Some(first_grapheme) = iter.next() {
13393 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13394 offset += first_grapheme.len();
13395 graphemes += 1;
13396 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13397 if let Some(grapheme) = iter.peek().copied() {
13398 if should_stay_with_preceding_ideograph(grapheme) {
13399 offset += grapheme.len();
13400 graphemes += 1;
13401 }
13402 }
13403 } else {
13404 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13405 let mut next_word_bound = words.peek().copied();
13406 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13407 next_word_bound = words.next();
13408 }
13409 while let Some(grapheme) = iter.peek().copied() {
13410 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13411 break;
13412 };
13413 if is_grapheme_whitespace(grapheme) != is_whitespace {
13414 break;
13415 };
13416 offset += grapheme.len();
13417 graphemes += 1;
13418 iter.next();
13419 }
13420 }
13421 let token = &self.input[..offset];
13422 self.input = &self.input[offset..];
13423 if is_whitespace {
13424 Some(WordBreakToken {
13425 token: " ",
13426 grapheme_len: 1,
13427 is_whitespace: true,
13428 })
13429 } else {
13430 Some(WordBreakToken {
13431 token,
13432 grapheme_len: graphemes,
13433 is_whitespace: false,
13434 })
13435 }
13436 } else {
13437 None
13438 }
13439 }
13440}
13441
13442#[test]
13443fn test_word_breaking_tokenizer() {
13444 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13445 ("", &[]),
13446 (" ", &[(" ", 1, true)]),
13447 ("Ʒ", &[("Ʒ", 1, false)]),
13448 ("Ǽ", &[("Ǽ", 1, false)]),
13449 ("⋑", &[("⋑", 1, false)]),
13450 ("⋑⋑", &[("⋑⋑", 2, false)]),
13451 (
13452 "原理，进而",
13453 &[
13454 ("原", 1, false),
13455 ("理，", 2, false),
13456 ("进", 1, false),
13457 ("而", 1, false),
13458 ],
13459 ),
13460 (
13461 "hello world",
13462 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13463 ),
13464 (
13465 "hello, world",
13466 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13467 ),
13468 (
13469 " hello world",
13470 &[
13471 (" ", 1, true),
13472 ("hello", 5, false),
13473 (" ", 1, true),
13474 ("world", 5, false),
13475 ],
13476 ),
13477 (
13478 "这是什么 \n 钢笔",
13479 &[
13480 ("这", 1, false),
13481 ("是", 1, false),
13482 ("什", 1, false),
13483 ("么", 1, false),
13484 (" ", 1, true),
13485 ("钢", 1, false),
13486 ("笔", 1, false),
13487 ],
13488 ),
13489 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13490 ];
13491
13492 for (input, result) in tests {
13493 assert_eq!(
13494 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13495 result
13496 .iter()
13497 .copied()
13498 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13499 token,
13500 grapheme_len,
13501 is_whitespace,
13502 })
13503 .collect::<Vec<_>>()
13504 );
13505 }
13506}
13507
13508fn wrap_with_prefix(
13509 line_prefix: String,
13510 unwrapped_text: String,
13511 wrap_column: usize,
13512 tab_size: NonZeroU32,
13513) -> String {
13514 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13515 let mut wrapped_text = String::new();
13516 let mut current_line = line_prefix.clone();
13517
13518 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13519 let mut current_line_len = line_prefix_len;
13520 for WordBreakToken {
13521 token,
13522 grapheme_len,
13523 is_whitespace,
13524 } in tokenizer
13525 {
13526 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13527 wrapped_text.push_str(current_line.trim_end());
13528 wrapped_text.push('\n');
13529 current_line.truncate(line_prefix.len());
13530 current_line_len = line_prefix_len;
13531 if !is_whitespace {
13532 current_line.push_str(token);
13533 current_line_len += grapheme_len;
13534 }
13535 } else if !is_whitespace {
13536 current_line.push_str(token);
13537 current_line_len += grapheme_len;
13538 } else if current_line_len != line_prefix_len {
13539 current_line.push(' ');
13540 current_line_len += 1;
13541 }
13542 }
13543
13544 if !current_line.is_empty() {
13545 wrapped_text.push_str(¤t_line);
13546 }
13547 wrapped_text
13548}
13549
13550#[test]
13551fn test_wrap_with_prefix() {
13552 assert_eq!(
13553 wrap_with_prefix(
13554 "# ".to_string(),
13555 "abcdefg".to_string(),
13556 4,
13557 NonZeroU32::new(4).unwrap()
13558 ),
13559 "# abcdefg"
13560 );
13561 assert_eq!(
13562 wrap_with_prefix(
13563 "".to_string(),
13564 "\thello world".to_string(),
13565 8,
13566 NonZeroU32::new(4).unwrap()
13567 ),
13568 "hello\nworld"
13569 );
13570 assert_eq!(
13571 wrap_with_prefix(
13572 "// ".to_string(),
13573 "xx \nyy zz aa bb cc".to_string(),
13574 12,
13575 NonZeroU32::new(4).unwrap()
13576 ),
13577 "// xx yy zz\n// aa bb cc"
13578 );
13579 assert_eq!(
13580 wrap_with_prefix(
13581 String::new(),
13582 "这是什么 \n 钢笔".to_string(),
13583 3,
13584 NonZeroU32::new(4).unwrap()
13585 ),
13586 "这是什\n么 钢\n笔"
13587 );
13588}
13589
13590fn hunks_for_selections(
13591 snapshot: &EditorSnapshot,
13592 selections: &[Selection<Point>],
13593) -> Vec<MultiBufferDiffHunk> {
13594 hunks_for_ranges(
13595 selections.iter().map(|selection| selection.range()),
13596 snapshot,
13597 )
13598}
13599
13600pub fn hunks_for_ranges(
13601 ranges: impl Iterator<Item = Range<Point>>,
13602 snapshot: &EditorSnapshot,
13603) -> Vec<MultiBufferDiffHunk> {
13604 let mut hunks = Vec::new();
13605 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13606 HashMap::default();
13607 for query_range in ranges {
13608 let query_rows =
13609 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13610 for hunk in snapshot.diff_map.diff_hunks_in_range(
13611 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13612 &snapshot.buffer_snapshot,
13613 ) {
13614 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13615 // when the caret is just above or just below the deleted hunk.
13616 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13617 let related_to_selection = if allow_adjacent {
13618 hunk.row_range.overlaps(&query_rows)
13619 || hunk.row_range.start == query_rows.end
13620 || hunk.row_range.end == query_rows.start
13621 } else {
13622 hunk.row_range.overlaps(&query_rows)
13623 };
13624 if related_to_selection {
13625 if !processed_buffer_rows
13626 .entry(hunk.buffer_id)
13627 .or_default()
13628 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13629 {
13630 continue;
13631 }
13632 hunks.push(hunk);
13633 }
13634 }
13635 }
13636
13637 hunks
13638}
13639
13640pub trait CollaborationHub {
13641 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13642 fn user_participant_indices<'a>(
13643 &self,
13644 cx: &'a AppContext,
13645 ) -> &'a HashMap<u64, ParticipantIndex>;
13646 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13647}
13648
13649impl CollaborationHub for Model<Project> {
13650 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13651 self.read(cx).collaborators()
13652 }
13653
13654 fn user_participant_indices<'a>(
13655 &self,
13656 cx: &'a AppContext,
13657 ) -> &'a HashMap<u64, ParticipantIndex> {
13658 self.read(cx).user_store().read(cx).participant_indices()
13659 }
13660
13661 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13662 let this = self.read(cx);
13663 let user_ids = this.collaborators().values().map(|c| c.user_id);
13664 this.user_store().read_with(cx, |user_store, cx| {
13665 user_store.participant_names(user_ids, cx)
13666 })
13667 }
13668}
13669
13670pub trait SemanticsProvider {
13671 fn hover(
13672 &self,
13673 buffer: &Model<Buffer>,
13674 position: text::Anchor,
13675 cx: &mut AppContext,
13676 ) -> Option<Task<Vec<project::Hover>>>;
13677
13678 fn inlay_hints(
13679 &self,
13680 buffer_handle: Model<Buffer>,
13681 range: Range<text::Anchor>,
13682 cx: &mut AppContext,
13683 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13684
13685 fn resolve_inlay_hint(
13686 &self,
13687 hint: InlayHint,
13688 buffer_handle: Model<Buffer>,
13689 server_id: LanguageServerId,
13690 cx: &mut AppContext,
13691 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13692
13693 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13694
13695 fn document_highlights(
13696 &self,
13697 buffer: &Model<Buffer>,
13698 position: text::Anchor,
13699 cx: &mut AppContext,
13700 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13701
13702 fn definitions(
13703 &self,
13704 buffer: &Model<Buffer>,
13705 position: text::Anchor,
13706 kind: GotoDefinitionKind,
13707 cx: &mut AppContext,
13708 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13709
13710 fn range_for_rename(
13711 &self,
13712 buffer: &Model<Buffer>,
13713 position: text::Anchor,
13714 cx: &mut AppContext,
13715 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13716
13717 fn perform_rename(
13718 &self,
13719 buffer: &Model<Buffer>,
13720 position: text::Anchor,
13721 new_name: String,
13722 cx: &mut AppContext,
13723 ) -> Option<Task<Result<ProjectTransaction>>>;
13724}
13725
13726pub trait CompletionProvider {
13727 fn completions(
13728 &self,
13729 buffer: &Model<Buffer>,
13730 buffer_position: text::Anchor,
13731 trigger: CompletionContext,
13732 cx: &mut ViewContext<Editor>,
13733 ) -> Task<Result<Vec<Completion>>>;
13734
13735 fn resolve_completions(
13736 &self,
13737 buffer: Model<Buffer>,
13738 completion_indices: Vec<usize>,
13739 completions: Rc<RefCell<Box<[Completion]>>>,
13740 cx: &mut ViewContext<Editor>,
13741 ) -> Task<Result<bool>>;
13742
13743 fn apply_additional_edits_for_completion(
13744 &self,
13745 _buffer: Model<Buffer>,
13746 _completions: Rc<RefCell<Box<[Completion]>>>,
13747 _completion_index: usize,
13748 _push_to_history: bool,
13749 _cx: &mut ViewContext<Editor>,
13750 ) -> Task<Result<Option<language::Transaction>>> {
13751 Task::ready(Ok(None))
13752 }
13753
13754 fn is_completion_trigger(
13755 &self,
13756 buffer: &Model<Buffer>,
13757 position: language::Anchor,
13758 text: &str,
13759 trigger_in_words: bool,
13760 cx: &mut ViewContext<Editor>,
13761 ) -> bool;
13762
13763 fn sort_completions(&self) -> bool {
13764 true
13765 }
13766}
13767
13768pub trait CodeActionProvider {
13769 fn id(&self) -> Arc<str>;
13770
13771 fn code_actions(
13772 &self,
13773 buffer: &Model<Buffer>,
13774 range: Range<text::Anchor>,
13775 cx: &mut WindowContext,
13776 ) -> Task<Result<Vec<CodeAction>>>;
13777
13778 fn apply_code_action(
13779 &self,
13780 buffer_handle: Model<Buffer>,
13781 action: CodeAction,
13782 excerpt_id: ExcerptId,
13783 push_to_history: bool,
13784 cx: &mut WindowContext,
13785 ) -> Task<Result<ProjectTransaction>>;
13786}
13787
13788impl CodeActionProvider for Model<Project> {
13789 fn id(&self) -> Arc<str> {
13790 "project".into()
13791 }
13792
13793 fn code_actions(
13794 &self,
13795 buffer: &Model<Buffer>,
13796 range: Range<text::Anchor>,
13797 cx: &mut WindowContext,
13798 ) -> Task<Result<Vec<CodeAction>>> {
13799 self.update(cx, |project, cx| {
13800 project.code_actions(buffer, range, None, cx)
13801 })
13802 }
13803
13804 fn apply_code_action(
13805 &self,
13806 buffer_handle: Model<Buffer>,
13807 action: CodeAction,
13808 _excerpt_id: ExcerptId,
13809 push_to_history: bool,
13810 cx: &mut WindowContext,
13811 ) -> Task<Result<ProjectTransaction>> {
13812 self.update(cx, |project, cx| {
13813 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13814 })
13815 }
13816}
13817
13818fn snippet_completions(
13819 project: &Project,
13820 buffer: &Model<Buffer>,
13821 buffer_position: text::Anchor,
13822 cx: &mut AppContext,
13823) -> Task<Result<Vec<Completion>>> {
13824 let language = buffer.read(cx).language_at(buffer_position);
13825 let language_name = language.as_ref().map(|language| language.lsp_id());
13826 let snippet_store = project.snippets().read(cx);
13827 let snippets = snippet_store.snippets_for(language_name, cx);
13828
13829 if snippets.is_empty() {
13830 return Task::ready(Ok(vec![]));
13831 }
13832 let snapshot = buffer.read(cx).text_snapshot();
13833 let chars: String = snapshot
13834 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13835 .collect();
13836
13837 let scope = language.map(|language| language.default_scope());
13838 let executor = cx.background_executor().clone();
13839
13840 cx.background_executor().spawn(async move {
13841 let classifier = CharClassifier::new(scope).for_completion(true);
13842 let mut last_word = chars
13843 .chars()
13844 .take_while(|c| classifier.is_word(*c))
13845 .collect::<String>();
13846 last_word = last_word.chars().rev().collect();
13847
13848 if last_word.is_empty() {
13849 return Ok(vec![]);
13850 }
13851
13852 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13853 let to_lsp = |point: &text::Anchor| {
13854 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13855 point_to_lsp(end)
13856 };
13857 let lsp_end = to_lsp(&buffer_position);
13858
13859 let candidates = snippets
13860 .iter()
13861 .enumerate()
13862 .flat_map(|(ix, snippet)| {
13863 snippet
13864 .prefix
13865 .iter()
13866 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13867 })
13868 .collect::<Vec<StringMatchCandidate>>();
13869
13870 let mut matches = fuzzy::match_strings(
13871 &candidates,
13872 &last_word,
13873 last_word.chars().any(|c| c.is_uppercase()),
13874 100,
13875 &Default::default(),
13876 executor,
13877 )
13878 .await;
13879
13880 // Remove all candidates where the query's start does not match the start of any word in the candidate
13881 if let Some(query_start) = last_word.chars().next() {
13882 matches.retain(|string_match| {
13883 split_words(&string_match.string).any(|word| {
13884 // Check that the first codepoint of the word as lowercase matches the first
13885 // codepoint of the query as lowercase
13886 word.chars()
13887 .flat_map(|codepoint| codepoint.to_lowercase())
13888 .zip(query_start.to_lowercase())
13889 .all(|(word_cp, query_cp)| word_cp == query_cp)
13890 })
13891 });
13892 }
13893
13894 let matched_strings = matches
13895 .into_iter()
13896 .map(|m| m.string)
13897 .collect::<HashSet<_>>();
13898
13899 let result: Vec<Completion> = snippets
13900 .into_iter()
13901 .filter_map(|snippet| {
13902 let matching_prefix = snippet
13903 .prefix
13904 .iter()
13905 .find(|prefix| matched_strings.contains(*prefix))?;
13906 let start = as_offset - last_word.len();
13907 let start = snapshot.anchor_before(start);
13908 let range = start..buffer_position;
13909 let lsp_start = to_lsp(&start);
13910 let lsp_range = lsp::Range {
13911 start: lsp_start,
13912 end: lsp_end,
13913 };
13914 Some(Completion {
13915 old_range: range,
13916 new_text: snippet.body.clone(),
13917 resolved: false,
13918 label: CodeLabel {
13919 text: matching_prefix.clone(),
13920 runs: vec![],
13921 filter_range: 0..matching_prefix.len(),
13922 },
13923 server_id: LanguageServerId(usize::MAX),
13924 documentation: snippet.description.clone().map(Documentation::SingleLine),
13925 lsp_completion: lsp::CompletionItem {
13926 label: snippet.prefix.first().unwrap().clone(),
13927 kind: Some(CompletionItemKind::SNIPPET),
13928 label_details: snippet.description.as_ref().map(|description| {
13929 lsp::CompletionItemLabelDetails {
13930 detail: Some(description.clone()),
13931 description: None,
13932 }
13933 }),
13934 insert_text_format: Some(InsertTextFormat::SNIPPET),
13935 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13936 lsp::InsertReplaceEdit {
13937 new_text: snippet.body.clone(),
13938 insert: lsp_range,
13939 replace: lsp_range,
13940 },
13941 )),
13942 filter_text: Some(snippet.body.clone()),
13943 sort_text: Some(char::MAX.to_string()),
13944 ..Default::default()
13945 },
13946 confirm: None,
13947 })
13948 })
13949 .collect();
13950
13951 Ok(result)
13952 })
13953}
13954
13955impl CompletionProvider for Model<Project> {
13956 fn completions(
13957 &self,
13958 buffer: &Model<Buffer>,
13959 buffer_position: text::Anchor,
13960 options: CompletionContext,
13961 cx: &mut ViewContext<Editor>,
13962 ) -> Task<Result<Vec<Completion>>> {
13963 self.update(cx, |project, cx| {
13964 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13965 let project_completions = project.completions(buffer, buffer_position, options, cx);
13966 cx.background_executor().spawn(async move {
13967 let mut completions = project_completions.await?;
13968 let snippets_completions = snippets.await?;
13969 completions.extend(snippets_completions);
13970 Ok(completions)
13971 })
13972 })
13973 }
13974
13975 fn resolve_completions(
13976 &self,
13977 buffer: Model<Buffer>,
13978 completion_indices: Vec<usize>,
13979 completions: Rc<RefCell<Box<[Completion]>>>,
13980 cx: &mut ViewContext<Editor>,
13981 ) -> Task<Result<bool>> {
13982 self.update(cx, |project, cx| {
13983 project.lsp_store().update(cx, |lsp_store, cx| {
13984 lsp_store.resolve_completions(buffer, completion_indices, completions, cx)
13985 })
13986 })
13987 }
13988
13989 fn apply_additional_edits_for_completion(
13990 &self,
13991 buffer: Model<Buffer>,
13992 completions: Rc<RefCell<Box<[Completion]>>>,
13993 completion_index: usize,
13994 push_to_history: bool,
13995 cx: &mut ViewContext<Editor>,
13996 ) -> Task<Result<Option<language::Transaction>>> {
13997 self.update(cx, |project, cx| {
13998 project.lsp_store().update(cx, |lsp_store, cx| {
13999 lsp_store.apply_additional_edits_for_completion(
14000 buffer,
14001 completions,
14002 completion_index,
14003 push_to_history,
14004 cx,
14005 )
14006 })
14007 })
14008 }
14009
14010 fn is_completion_trigger(
14011 &self,
14012 buffer: &Model<Buffer>,
14013 position: language::Anchor,
14014 text: &str,
14015 trigger_in_words: bool,
14016 cx: &mut ViewContext<Editor>,
14017 ) -> bool {
14018 let mut chars = text.chars();
14019 let char = if let Some(char) = chars.next() {
14020 char
14021 } else {
14022 return false;
14023 };
14024 if chars.next().is_some() {
14025 return false;
14026 }
14027
14028 let buffer = buffer.read(cx);
14029 let snapshot = buffer.snapshot();
14030 if !snapshot.settings_at(position, cx).show_completions_on_input {
14031 return false;
14032 }
14033 let classifier = snapshot.char_classifier_at(position).for_completion(true);
14034 if trigger_in_words && classifier.is_word(char) {
14035 return true;
14036 }
14037
14038 buffer.completion_triggers().contains(text)
14039 }
14040}
14041
14042impl SemanticsProvider for Model<Project> {
14043 fn hover(
14044 &self,
14045 buffer: &Model<Buffer>,
14046 position: text::Anchor,
14047 cx: &mut AppContext,
14048 ) -> Option<Task<Vec<project::Hover>>> {
14049 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
14050 }
14051
14052 fn document_highlights(
14053 &self,
14054 buffer: &Model<Buffer>,
14055 position: text::Anchor,
14056 cx: &mut AppContext,
14057 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
14058 Some(self.update(cx, |project, cx| {
14059 project.document_highlights(buffer, position, cx)
14060 }))
14061 }
14062
14063 fn definitions(
14064 &self,
14065 buffer: &Model<Buffer>,
14066 position: text::Anchor,
14067 kind: GotoDefinitionKind,
14068 cx: &mut AppContext,
14069 ) -> Option<Task<Result<Vec<LocationLink>>>> {
14070 Some(self.update(cx, |project, cx| match kind {
14071 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
14072 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
14073 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
14074 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
14075 }))
14076 }
14077
14078 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
14079 // TODO: make this work for remote projects
14080 self.read(cx)
14081 .language_servers_for_local_buffer(buffer.read(cx), cx)
14082 .any(
14083 |(_, server)| match server.capabilities().inlay_hint_provider {
14084 Some(lsp::OneOf::Left(enabled)) => enabled,
14085 Some(lsp::OneOf::Right(_)) => true,
14086 None => false,
14087 },
14088 )
14089 }
14090
14091 fn inlay_hints(
14092 &self,
14093 buffer_handle: Model<Buffer>,
14094 range: Range<text::Anchor>,
14095 cx: &mut AppContext,
14096 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
14097 Some(self.update(cx, |project, cx| {
14098 project.inlay_hints(buffer_handle, range, cx)
14099 }))
14100 }
14101
14102 fn resolve_inlay_hint(
14103 &self,
14104 hint: InlayHint,
14105 buffer_handle: Model<Buffer>,
14106 server_id: LanguageServerId,
14107 cx: &mut AppContext,
14108 ) -> Option<Task<anyhow::Result<InlayHint>>> {
14109 Some(self.update(cx, |project, cx| {
14110 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
14111 }))
14112 }
14113
14114 fn range_for_rename(
14115 &self,
14116 buffer: &Model<Buffer>,
14117 position: text::Anchor,
14118 cx: &mut AppContext,
14119 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
14120 Some(self.update(cx, |project, cx| {
14121 let buffer = buffer.clone();
14122 let task = project.prepare_rename(buffer.clone(), position, cx);
14123 cx.spawn(|_, mut cx| async move {
14124 Ok(match task.await? {
14125 PrepareRenameResponse::Success(range) => Some(range),
14126 PrepareRenameResponse::InvalidPosition => None,
14127 PrepareRenameResponse::OnlyUnpreparedRenameSupported => {
14128 // Fallback on using TreeSitter info to determine identifier range
14129 buffer.update(&mut cx, |buffer, _| {
14130 let snapshot = buffer.snapshot();
14131 let (range, kind) = snapshot.surrounding_word(position);
14132 if kind != Some(CharKind::Word) {
14133 return None;
14134 }
14135 Some(
14136 snapshot.anchor_before(range.start)
14137 ..snapshot.anchor_after(range.end),
14138 )
14139 })?
14140 }
14141 })
14142 })
14143 }))
14144 }
14145
14146 fn perform_rename(
14147 &self,
14148 buffer: &Model<Buffer>,
14149 position: text::Anchor,
14150 new_name: String,
14151 cx: &mut AppContext,
14152 ) -> Option<Task<Result<ProjectTransaction>>> {
14153 Some(self.update(cx, |project, cx| {
14154 project.perform_rename(buffer.clone(), position, new_name, cx)
14155 }))
14156 }
14157}
14158
14159fn inlay_hint_settings(
14160 location: Anchor,
14161 snapshot: &MultiBufferSnapshot,
14162 cx: &mut ViewContext<Editor>,
14163) -> InlayHintSettings {
14164 let file = snapshot.file_at(location);
14165 let language = snapshot.language_at(location).map(|l| l.name());
14166 language_settings(language, file, cx).inlay_hints
14167}
14168
14169fn consume_contiguous_rows(
14170 contiguous_row_selections: &mut Vec<Selection<Point>>,
14171 selection: &Selection<Point>,
14172 display_map: &DisplaySnapshot,
14173 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
14174) -> (MultiBufferRow, MultiBufferRow) {
14175 contiguous_row_selections.push(selection.clone());
14176 let start_row = MultiBufferRow(selection.start.row);
14177 let mut end_row = ending_row(selection, display_map);
14178
14179 while let Some(next_selection) = selections.peek() {
14180 if next_selection.start.row <= end_row.0 {
14181 end_row = ending_row(next_selection, display_map);
14182 contiguous_row_selections.push(selections.next().unwrap().clone());
14183 } else {
14184 break;
14185 }
14186 }
14187 (start_row, end_row)
14188}
14189
14190fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
14191 if next_selection.end.column > 0 || next_selection.is_empty() {
14192 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
14193 } else {
14194 MultiBufferRow(next_selection.end.row)
14195 }
14196}
14197
14198impl EditorSnapshot {
14199 pub fn remote_selections_in_range<'a>(
14200 &'a self,
14201 range: &'a Range<Anchor>,
14202 collaboration_hub: &dyn CollaborationHub,
14203 cx: &'a AppContext,
14204 ) -> impl 'a + Iterator<Item = RemoteSelection> {
14205 let participant_names = collaboration_hub.user_names(cx);
14206 let participant_indices = collaboration_hub.user_participant_indices(cx);
14207 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
14208 let collaborators_by_replica_id = collaborators_by_peer_id
14209 .iter()
14210 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
14211 .collect::<HashMap<_, _>>();
14212 self.buffer_snapshot
14213 .selections_in_range(range, false)
14214 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
14215 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
14216 let participant_index = participant_indices.get(&collaborator.user_id).copied();
14217 let user_name = participant_names.get(&collaborator.user_id).cloned();
14218 Some(RemoteSelection {
14219 replica_id,
14220 selection,
14221 cursor_shape,
14222 line_mode,
14223 participant_index,
14224 peer_id: collaborator.peer_id,
14225 user_name,
14226 })
14227 })
14228 }
14229
14230 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
14231 self.display_snapshot.buffer_snapshot.language_at(position)
14232 }
14233
14234 pub fn is_focused(&self) -> bool {
14235 self.is_focused
14236 }
14237
14238 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14239 self.placeholder_text.as_ref()
14240 }
14241
14242 pub fn scroll_position(&self) -> gpui::Point<f32> {
14243 self.scroll_anchor.scroll_position(&self.display_snapshot)
14244 }
14245
14246 fn gutter_dimensions(
14247 &self,
14248 font_id: FontId,
14249 font_size: Pixels,
14250 em_width: Pixels,
14251 em_advance: Pixels,
14252 max_line_number_width: Pixels,
14253 cx: &AppContext,
14254 ) -> GutterDimensions {
14255 if !self.show_gutter {
14256 return GutterDimensions::default();
14257 }
14258 let descent = cx.text_system().descent(font_id, font_size);
14259
14260 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14261 matches!(
14262 ProjectSettings::get_global(cx).git.git_gutter,
14263 Some(GitGutterSetting::TrackedFiles)
14264 )
14265 });
14266 let gutter_settings = EditorSettings::get_global(cx).gutter;
14267 let show_line_numbers = self
14268 .show_line_numbers
14269 .unwrap_or(gutter_settings.line_numbers);
14270 let line_gutter_width = if show_line_numbers {
14271 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14272 let min_width_for_number_on_gutter = em_advance * 4.0;
14273 max_line_number_width.max(min_width_for_number_on_gutter)
14274 } else {
14275 0.0.into()
14276 };
14277
14278 let show_code_actions = self
14279 .show_code_actions
14280 .unwrap_or(gutter_settings.code_actions);
14281
14282 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14283
14284 let git_blame_entries_width =
14285 self.git_blame_gutter_max_author_length
14286 .map(|max_author_length| {
14287 // Length of the author name, but also space for the commit hash,
14288 // the spacing and the timestamp.
14289 let max_char_count = max_author_length
14290 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14291 + 7 // length of commit sha
14292 + 14 // length of max relative timestamp ("60 minutes ago")
14293 + 4; // gaps and margins
14294
14295 em_advance * max_char_count
14296 });
14297
14298 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14299 left_padding += if show_code_actions || show_runnables {
14300 em_width * 3.0
14301 } else if show_git_gutter && show_line_numbers {
14302 em_width * 2.0
14303 } else if show_git_gutter || show_line_numbers {
14304 em_width
14305 } else {
14306 px(0.)
14307 };
14308
14309 let right_padding = if gutter_settings.folds && show_line_numbers {
14310 em_width * 4.0
14311 } else if gutter_settings.folds {
14312 em_width * 3.0
14313 } else if show_line_numbers {
14314 em_width
14315 } else {
14316 px(0.)
14317 };
14318
14319 GutterDimensions {
14320 left_padding,
14321 right_padding,
14322 width: line_gutter_width + left_padding + right_padding,
14323 margin: -descent,
14324 git_blame_entries_width,
14325 }
14326 }
14327
14328 pub fn render_crease_toggle(
14329 &self,
14330 buffer_row: MultiBufferRow,
14331 row_contains_cursor: bool,
14332 editor: View<Editor>,
14333 cx: &mut WindowContext,
14334 ) -> Option<AnyElement> {
14335 let folded = self.is_line_folded(buffer_row);
14336 let mut is_foldable = false;
14337
14338 if let Some(crease) = self
14339 .crease_snapshot
14340 .query_row(buffer_row, &self.buffer_snapshot)
14341 {
14342 is_foldable = true;
14343 match crease {
14344 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14345 if let Some(render_toggle) = render_toggle {
14346 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14347 if folded {
14348 editor.update(cx, |editor, cx| {
14349 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14350 });
14351 } else {
14352 editor.update(cx, |editor, cx| {
14353 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14354 });
14355 }
14356 });
14357 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14358 }
14359 }
14360 }
14361 }
14362
14363 is_foldable |= self.starts_indent(buffer_row);
14364
14365 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14366 Some(
14367 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14368 .toggle_state(folded)
14369 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14370 if folded {
14371 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14372 } else {
14373 this.fold_at(&FoldAt { buffer_row }, cx);
14374 }
14375 }))
14376 .into_any_element(),
14377 )
14378 } else {
14379 None
14380 }
14381 }
14382
14383 pub fn render_crease_trailer(
14384 &self,
14385 buffer_row: MultiBufferRow,
14386 cx: &mut WindowContext,
14387 ) -> Option<AnyElement> {
14388 let folded = self.is_line_folded(buffer_row);
14389 if let Crease::Inline { render_trailer, .. } = self
14390 .crease_snapshot
14391 .query_row(buffer_row, &self.buffer_snapshot)?
14392 {
14393 let render_trailer = render_trailer.as_ref()?;
14394 Some(render_trailer(buffer_row, folded, cx))
14395 } else {
14396 None
14397 }
14398 }
14399}
14400
14401impl Deref for EditorSnapshot {
14402 type Target = DisplaySnapshot;
14403
14404 fn deref(&self) -> &Self::Target {
14405 &self.display_snapshot
14406 }
14407}
14408
14409#[derive(Clone, Debug, PartialEq, Eq)]
14410pub enum EditorEvent {
14411 InputIgnored {
14412 text: Arc<str>,
14413 },
14414 InputHandled {
14415 utf16_range_to_replace: Option<Range<isize>>,
14416 text: Arc<str>,
14417 },
14418 ExcerptsAdded {
14419 buffer: Model<Buffer>,
14420 predecessor: ExcerptId,
14421 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14422 },
14423 ExcerptsRemoved {
14424 ids: Vec<ExcerptId>,
14425 },
14426 BufferFoldToggled {
14427 ids: Vec<ExcerptId>,
14428 folded: bool,
14429 },
14430 ExcerptsEdited {
14431 ids: Vec<ExcerptId>,
14432 },
14433 ExcerptsExpanded {
14434 ids: Vec<ExcerptId>,
14435 },
14436 BufferEdited,
14437 Edited {
14438 transaction_id: clock::Lamport,
14439 },
14440 Reparsed(BufferId),
14441 Focused,
14442 FocusedIn,
14443 Blurred,
14444 DirtyChanged,
14445 Saved,
14446 TitleChanged,
14447 DiffBaseChanged,
14448 SelectionsChanged {
14449 local: bool,
14450 },
14451 ScrollPositionChanged {
14452 local: bool,
14453 autoscroll: bool,
14454 },
14455 Closed,
14456 TransactionUndone {
14457 transaction_id: clock::Lamport,
14458 },
14459 TransactionBegun {
14460 transaction_id: clock::Lamport,
14461 },
14462 Reloaded,
14463 CursorShapeChanged,
14464}
14465
14466impl EventEmitter<EditorEvent> for Editor {}
14467
14468impl FocusableView for Editor {
14469 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14470 self.focus_handle.clone()
14471 }
14472}
14473
14474impl Render for Editor {
14475 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14476 let settings = ThemeSettings::get_global(cx);
14477
14478 let mut text_style = match self.mode {
14479 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14480 color: cx.theme().colors().editor_foreground,
14481 font_family: settings.ui_font.family.clone(),
14482 font_features: settings.ui_font.features.clone(),
14483 font_fallbacks: settings.ui_font.fallbacks.clone(),
14484 font_size: rems(0.875).into(),
14485 font_weight: settings.ui_font.weight,
14486 line_height: relative(settings.buffer_line_height.value()),
14487 ..Default::default()
14488 },
14489 EditorMode::Full => TextStyle {
14490 color: cx.theme().colors().editor_foreground,
14491 font_family: settings.buffer_font.family.clone(),
14492 font_features: settings.buffer_font.features.clone(),
14493 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14494 font_size: settings.buffer_font_size().into(),
14495 font_weight: settings.buffer_font.weight,
14496 line_height: relative(settings.buffer_line_height.value()),
14497 ..Default::default()
14498 },
14499 };
14500 if let Some(text_style_refinement) = &self.text_style_refinement {
14501 text_style.refine(text_style_refinement)
14502 }
14503
14504 let background = match self.mode {
14505 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14506 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14507 EditorMode::Full => cx.theme().colors().editor_background,
14508 };
14509
14510 EditorElement::new(
14511 cx.view(),
14512 EditorStyle {
14513 background,
14514 local_player: cx.theme().players().local(),
14515 text: text_style,
14516 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14517 syntax: cx.theme().syntax().clone(),
14518 status: cx.theme().status().clone(),
14519 inlay_hints_style: make_inlay_hints_style(cx),
14520 inline_completion_styles: make_suggestion_styles(cx),
14521 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14522 },
14523 )
14524 }
14525}
14526
14527impl ViewInputHandler for Editor {
14528 fn text_for_range(
14529 &mut self,
14530 range_utf16: Range<usize>,
14531 adjusted_range: &mut Option<Range<usize>>,
14532 cx: &mut ViewContext<Self>,
14533 ) -> Option<String> {
14534 let snapshot = self.buffer.read(cx).read(cx);
14535 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14536 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14537 if (start.0..end.0) != range_utf16 {
14538 adjusted_range.replace(start.0..end.0);
14539 }
14540 Some(snapshot.text_for_range(start..end).collect())
14541 }
14542
14543 fn selected_text_range(
14544 &mut self,
14545 ignore_disabled_input: bool,
14546 cx: &mut ViewContext<Self>,
14547 ) -> Option<UTF16Selection> {
14548 // Prevent the IME menu from appearing when holding down an alphabetic key
14549 // while input is disabled.
14550 if !ignore_disabled_input && !self.input_enabled {
14551 return None;
14552 }
14553
14554 let selection = self.selections.newest::<OffsetUtf16>(cx);
14555 let range = selection.range();
14556
14557 Some(UTF16Selection {
14558 range: range.start.0..range.end.0,
14559 reversed: selection.reversed,
14560 })
14561 }
14562
14563 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14564 let snapshot = self.buffer.read(cx).read(cx);
14565 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14566 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14567 }
14568
14569 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14570 self.clear_highlights::<InputComposition>(cx);
14571 self.ime_transaction.take();
14572 }
14573
14574 fn replace_text_in_range(
14575 &mut self,
14576 range_utf16: Option<Range<usize>>,
14577 text: &str,
14578 cx: &mut ViewContext<Self>,
14579 ) {
14580 if !self.input_enabled {
14581 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14582 return;
14583 }
14584
14585 self.transact(cx, |this, cx| {
14586 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14587 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14588 Some(this.selection_replacement_ranges(range_utf16, cx))
14589 } else {
14590 this.marked_text_ranges(cx)
14591 };
14592
14593 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14594 let newest_selection_id = this.selections.newest_anchor().id;
14595 this.selections
14596 .all::<OffsetUtf16>(cx)
14597 .iter()
14598 .zip(ranges_to_replace.iter())
14599 .find_map(|(selection, range)| {
14600 if selection.id == newest_selection_id {
14601 Some(
14602 (range.start.0 as isize - selection.head().0 as isize)
14603 ..(range.end.0 as isize - selection.head().0 as isize),
14604 )
14605 } else {
14606 None
14607 }
14608 })
14609 });
14610
14611 cx.emit(EditorEvent::InputHandled {
14612 utf16_range_to_replace: range_to_replace,
14613 text: text.into(),
14614 });
14615
14616 if let Some(new_selected_ranges) = new_selected_ranges {
14617 this.change_selections(None, cx, |selections| {
14618 selections.select_ranges(new_selected_ranges)
14619 });
14620 this.backspace(&Default::default(), cx);
14621 }
14622
14623 this.handle_input(text, cx);
14624 });
14625
14626 if let Some(transaction) = self.ime_transaction {
14627 self.buffer.update(cx, |buffer, cx| {
14628 buffer.group_until_transaction(transaction, cx);
14629 });
14630 }
14631
14632 self.unmark_text(cx);
14633 }
14634
14635 fn replace_and_mark_text_in_range(
14636 &mut self,
14637 range_utf16: Option<Range<usize>>,
14638 text: &str,
14639 new_selected_range_utf16: Option<Range<usize>>,
14640 cx: &mut ViewContext<Self>,
14641 ) {
14642 if !self.input_enabled {
14643 return;
14644 }
14645
14646 let transaction = self.transact(cx, |this, cx| {
14647 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14648 let snapshot = this.buffer.read(cx).read(cx);
14649 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14650 for marked_range in &mut marked_ranges {
14651 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14652 marked_range.start.0 += relative_range_utf16.start;
14653 marked_range.start =
14654 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14655 marked_range.end =
14656 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14657 }
14658 }
14659 Some(marked_ranges)
14660 } else if let Some(range_utf16) = range_utf16 {
14661 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14662 Some(this.selection_replacement_ranges(range_utf16, cx))
14663 } else {
14664 None
14665 };
14666
14667 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14668 let newest_selection_id = this.selections.newest_anchor().id;
14669 this.selections
14670 .all::<OffsetUtf16>(cx)
14671 .iter()
14672 .zip(ranges_to_replace.iter())
14673 .find_map(|(selection, range)| {
14674 if selection.id == newest_selection_id {
14675 Some(
14676 (range.start.0 as isize - selection.head().0 as isize)
14677 ..(range.end.0 as isize - selection.head().0 as isize),
14678 )
14679 } else {
14680 None
14681 }
14682 })
14683 });
14684
14685 cx.emit(EditorEvent::InputHandled {
14686 utf16_range_to_replace: range_to_replace,
14687 text: text.into(),
14688 });
14689
14690 if let Some(ranges) = ranges_to_replace {
14691 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14692 }
14693
14694 let marked_ranges = {
14695 let snapshot = this.buffer.read(cx).read(cx);
14696 this.selections
14697 .disjoint_anchors()
14698 .iter()
14699 .map(|selection| {
14700 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14701 })
14702 .collect::<Vec<_>>()
14703 };
14704
14705 if text.is_empty() {
14706 this.unmark_text(cx);
14707 } else {
14708 this.highlight_text::<InputComposition>(
14709 marked_ranges.clone(),
14710 HighlightStyle {
14711 underline: Some(UnderlineStyle {
14712 thickness: px(1.),
14713 color: None,
14714 wavy: false,
14715 }),
14716 ..Default::default()
14717 },
14718 cx,
14719 );
14720 }
14721
14722 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14723 let use_autoclose = this.use_autoclose;
14724 let use_auto_surround = this.use_auto_surround;
14725 this.set_use_autoclose(false);
14726 this.set_use_auto_surround(false);
14727 this.handle_input(text, cx);
14728 this.set_use_autoclose(use_autoclose);
14729 this.set_use_auto_surround(use_auto_surround);
14730
14731 if let Some(new_selected_range) = new_selected_range_utf16 {
14732 let snapshot = this.buffer.read(cx).read(cx);
14733 let new_selected_ranges = marked_ranges
14734 .into_iter()
14735 .map(|marked_range| {
14736 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14737 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14738 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14739 snapshot.clip_offset_utf16(new_start, Bias::Left)
14740 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14741 })
14742 .collect::<Vec<_>>();
14743
14744 drop(snapshot);
14745 this.change_selections(None, cx, |selections| {
14746 selections.select_ranges(new_selected_ranges)
14747 });
14748 }
14749 });
14750
14751 self.ime_transaction = self.ime_transaction.or(transaction);
14752 if let Some(transaction) = self.ime_transaction {
14753 self.buffer.update(cx, |buffer, cx| {
14754 buffer.group_until_transaction(transaction, cx);
14755 });
14756 }
14757
14758 if self.text_highlights::<InputComposition>(cx).is_none() {
14759 self.ime_transaction.take();
14760 }
14761 }
14762
14763 fn bounds_for_range(
14764 &mut self,
14765 range_utf16: Range<usize>,
14766 element_bounds: gpui::Bounds<Pixels>,
14767 cx: &mut ViewContext<Self>,
14768 ) -> Option<gpui::Bounds<Pixels>> {
14769 let text_layout_details = self.text_layout_details(cx);
14770 let gpui::Point {
14771 x: em_width,
14772 y: line_height,
14773 } = self.character_size(cx);
14774
14775 let snapshot = self.snapshot(cx);
14776 let scroll_position = snapshot.scroll_position();
14777 let scroll_left = scroll_position.x * em_width;
14778
14779 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14780 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14781 + self.gutter_dimensions.width
14782 + self.gutter_dimensions.margin;
14783 let y = line_height * (start.row().as_f32() - scroll_position.y);
14784
14785 Some(Bounds {
14786 origin: element_bounds.origin + point(x, y),
14787 size: size(em_width, line_height),
14788 })
14789 }
14790}
14791
14792trait SelectionExt {
14793 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14794 fn spanned_rows(
14795 &self,
14796 include_end_if_at_line_start: bool,
14797 map: &DisplaySnapshot,
14798 ) -> Range<MultiBufferRow>;
14799}
14800
14801impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14802 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14803 let start = self
14804 .start
14805 .to_point(&map.buffer_snapshot)
14806 .to_display_point(map);
14807 let end = self
14808 .end
14809 .to_point(&map.buffer_snapshot)
14810 .to_display_point(map);
14811 if self.reversed {
14812 end..start
14813 } else {
14814 start..end
14815 }
14816 }
14817
14818 fn spanned_rows(
14819 &self,
14820 include_end_if_at_line_start: bool,
14821 map: &DisplaySnapshot,
14822 ) -> Range<MultiBufferRow> {
14823 let start = self.start.to_point(&map.buffer_snapshot);
14824 let mut end = self.end.to_point(&map.buffer_snapshot);
14825 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14826 end.row -= 1;
14827 }
14828
14829 let buffer_start = map.prev_line_boundary(start).0;
14830 let buffer_end = map.next_line_boundary(end).0;
14831 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14832 }
14833}
14834
14835impl<T: InvalidationRegion> InvalidationStack<T> {
14836 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14837 where
14838 S: Clone + ToOffset,
14839 {
14840 while let Some(region) = self.last() {
14841 let all_selections_inside_invalidation_ranges =
14842 if selections.len() == region.ranges().len() {
14843 selections
14844 .iter()
14845 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14846 .all(|(selection, invalidation_range)| {
14847 let head = selection.head().to_offset(buffer);
14848 invalidation_range.start <= head && invalidation_range.end >= head
14849 })
14850 } else {
14851 false
14852 };
14853
14854 if all_selections_inside_invalidation_ranges {
14855 break;
14856 } else {
14857 self.pop();
14858 }
14859 }
14860 }
14861}
14862
14863impl<T> Default for InvalidationStack<T> {
14864 fn default() -> Self {
14865 Self(Default::default())
14866 }
14867}
14868
14869impl<T> Deref for InvalidationStack<T> {
14870 type Target = Vec<T>;
14871
14872 fn deref(&self) -> &Self::Target {
14873 &self.0
14874 }
14875}
14876
14877impl<T> DerefMut for InvalidationStack<T> {
14878 fn deref_mut(&mut self) -> &mut Self::Target {
14879 &mut self.0
14880 }
14881}
14882
14883impl InvalidationRegion for SnippetState {
14884 fn ranges(&self) -> &[Range<Anchor>] {
14885 &self.ranges[self.active_index]
14886 }
14887}
14888
14889pub fn diagnostic_block_renderer(
14890 diagnostic: Diagnostic,
14891 max_message_rows: Option<u8>,
14892 allow_closing: bool,
14893 _is_valid: bool,
14894) -> RenderBlock {
14895 let (text_without_backticks, code_ranges) =
14896 highlight_diagnostic_message(&diagnostic, max_message_rows);
14897
14898 Arc::new(move |cx: &mut BlockContext| {
14899 let group_id: SharedString = cx.block_id.to_string().into();
14900
14901 let mut text_style = cx.text_style().clone();
14902 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14903 let theme_settings = ThemeSettings::get_global(cx);
14904 text_style.font_family = theme_settings.buffer_font.family.clone();
14905 text_style.font_style = theme_settings.buffer_font.style;
14906 text_style.font_features = theme_settings.buffer_font.features.clone();
14907 text_style.font_weight = theme_settings.buffer_font.weight;
14908
14909 let multi_line_diagnostic = diagnostic.message.contains('\n');
14910
14911 let buttons = |diagnostic: &Diagnostic| {
14912 if multi_line_diagnostic {
14913 v_flex()
14914 } else {
14915 h_flex()
14916 }
14917 .when(allow_closing, |div| {
14918 div.children(diagnostic.is_primary.then(|| {
14919 IconButton::new("close-block", IconName::XCircle)
14920 .icon_color(Color::Muted)
14921 .size(ButtonSize::Compact)
14922 .style(ButtonStyle::Transparent)
14923 .visible_on_hover(group_id.clone())
14924 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14925 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14926 }))
14927 })
14928 .child(
14929 IconButton::new("copy-block", IconName::Copy)
14930 .icon_color(Color::Muted)
14931 .size(ButtonSize::Compact)
14932 .style(ButtonStyle::Transparent)
14933 .visible_on_hover(group_id.clone())
14934 .on_click({
14935 let message = diagnostic.message.clone();
14936 move |_click, cx| {
14937 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14938 }
14939 })
14940 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14941 )
14942 };
14943
14944 let icon_size = buttons(&diagnostic)
14945 .into_any_element()
14946 .layout_as_root(AvailableSpace::min_size(), cx);
14947
14948 h_flex()
14949 .id(cx.block_id)
14950 .group(group_id.clone())
14951 .relative()
14952 .size_full()
14953 .block_mouse_down()
14954 .pl(cx.gutter_dimensions.width)
14955 .w(cx.max_width - cx.gutter_dimensions.full_width())
14956 .child(
14957 div()
14958 .flex()
14959 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14960 .flex_shrink(),
14961 )
14962 .child(buttons(&diagnostic))
14963 .child(div().flex().flex_shrink_0().child(
14964 StyledText::new(text_without_backticks.clone()).with_highlights(
14965 &text_style,
14966 code_ranges.iter().map(|range| {
14967 (
14968 range.clone(),
14969 HighlightStyle {
14970 font_weight: Some(FontWeight::BOLD),
14971 ..Default::default()
14972 },
14973 )
14974 }),
14975 ),
14976 ))
14977 .into_any_element()
14978 })
14979}
14980
14981fn inline_completion_edit_text(
14982 current_snapshot: &BufferSnapshot,
14983 edits: &[(Range<Anchor>, String)],
14984 edit_preview: &EditPreview,
14985 include_deletions: bool,
14986 cx: &WindowContext,
14987) -> Option<HighlightedEdits> {
14988 let edits = edits
14989 .iter()
14990 .map(|(anchor, text)| {
14991 (
14992 anchor.start.text_anchor..anchor.end.text_anchor,
14993 text.clone(),
14994 )
14995 })
14996 .collect::<Vec<_>>();
14997
14998 Some(edit_preview.highlight_edits(current_snapshot, &edits, include_deletions, cx))
14999}
15000
15001pub fn highlight_diagnostic_message(
15002 diagnostic: &Diagnostic,
15003 mut max_message_rows: Option<u8>,
15004) -> (SharedString, Vec<Range<usize>>) {
15005 let mut text_without_backticks = String::new();
15006 let mut code_ranges = Vec::new();
15007
15008 if let Some(source) = &diagnostic.source {
15009 text_without_backticks.push_str(source);
15010 code_ranges.push(0..source.len());
15011 text_without_backticks.push_str(": ");
15012 }
15013
15014 let mut prev_offset = 0;
15015 let mut in_code_block = false;
15016 let has_row_limit = max_message_rows.is_some();
15017 let mut newline_indices = diagnostic
15018 .message
15019 .match_indices('\n')
15020 .filter(|_| has_row_limit)
15021 .map(|(ix, _)| ix)
15022 .fuse()
15023 .peekable();
15024
15025 for (quote_ix, _) in diagnostic
15026 .message
15027 .match_indices('`')
15028 .chain([(diagnostic.message.len(), "")])
15029 {
15030 let mut first_newline_ix = None;
15031 let mut last_newline_ix = None;
15032 while let Some(newline_ix) = newline_indices.peek() {
15033 if *newline_ix < quote_ix {
15034 if first_newline_ix.is_none() {
15035 first_newline_ix = Some(*newline_ix);
15036 }
15037 last_newline_ix = Some(*newline_ix);
15038
15039 if let Some(rows_left) = &mut max_message_rows {
15040 if *rows_left == 0 {
15041 break;
15042 } else {
15043 *rows_left -= 1;
15044 }
15045 }
15046 let _ = newline_indices.next();
15047 } else {
15048 break;
15049 }
15050 }
15051 let prev_len = text_without_backticks.len();
15052 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
15053 text_without_backticks.push_str(new_text);
15054 if in_code_block {
15055 code_ranges.push(prev_len..text_without_backticks.len());
15056 }
15057 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
15058 in_code_block = !in_code_block;
15059 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
15060 text_without_backticks.push_str("...");
15061 break;
15062 }
15063 }
15064
15065 (text_without_backticks.into(), code_ranges)
15066}
15067
15068fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
15069 match severity {
15070 DiagnosticSeverity::ERROR => colors.error,
15071 DiagnosticSeverity::WARNING => colors.warning,
15072 DiagnosticSeverity::INFORMATION => colors.info,
15073 DiagnosticSeverity::HINT => colors.info,
15074 _ => colors.ignored,
15075 }
15076}
15077
15078pub fn styled_runs_for_code_label<'a>(
15079 label: &'a CodeLabel,
15080 syntax_theme: &'a theme::SyntaxTheme,
15081) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
15082 let fade_out = HighlightStyle {
15083 fade_out: Some(0.35),
15084 ..Default::default()
15085 };
15086
15087 let mut prev_end = label.filter_range.end;
15088 label
15089 .runs
15090 .iter()
15091 .enumerate()
15092 .flat_map(move |(ix, (range, highlight_id))| {
15093 let style = if let Some(style) = highlight_id.style(syntax_theme) {
15094 style
15095 } else {
15096 return Default::default();
15097 };
15098 let mut muted_style = style;
15099 muted_style.highlight(fade_out);
15100
15101 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
15102 if range.start >= label.filter_range.end {
15103 if range.start > prev_end {
15104 runs.push((prev_end..range.start, fade_out));
15105 }
15106 runs.push((range.clone(), muted_style));
15107 } else if range.end <= label.filter_range.end {
15108 runs.push((range.clone(), style));
15109 } else {
15110 runs.push((range.start..label.filter_range.end, style));
15111 runs.push((label.filter_range.end..range.end, muted_style));
15112 }
15113 prev_end = cmp::max(prev_end, range.end);
15114
15115 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
15116 runs.push((prev_end..label.text.len(), fade_out));
15117 }
15118
15119 runs
15120 })
15121}
15122
15123pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
15124 let mut prev_index = 0;
15125 let mut prev_codepoint: Option<char> = None;
15126 text.char_indices()
15127 .chain([(text.len(), '\0')])
15128 .filter_map(move |(index, codepoint)| {
15129 let prev_codepoint = prev_codepoint.replace(codepoint)?;
15130 let is_boundary = index == text.len()
15131 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
15132 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
15133 if is_boundary {
15134 let chunk = &text[prev_index..index];
15135 prev_index = index;
15136 Some(chunk)
15137 } else {
15138 None
15139 }
15140 })
15141}
15142
15143pub trait RangeToAnchorExt: Sized {
15144 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
15145
15146 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
15147 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
15148 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
15149 }
15150}
15151
15152impl<T: ToOffset> RangeToAnchorExt for Range<T> {
15153 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
15154 let start_offset = self.start.to_offset(snapshot);
15155 let end_offset = self.end.to_offset(snapshot);
15156 if start_offset == end_offset {
15157 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
15158 } else {
15159 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
15160 }
15161 }
15162}
15163
15164pub trait RowExt {
15165 fn as_f32(&self) -> f32;
15166
15167 fn next_row(&self) -> Self;
15168
15169 fn previous_row(&self) -> Self;
15170
15171 fn minus(&self, other: Self) -> u32;
15172}
15173
15174impl RowExt for DisplayRow {
15175 fn as_f32(&self) -> f32 {
15176 self.0 as f32
15177 }
15178
15179 fn next_row(&self) -> Self {
15180 Self(self.0 + 1)
15181 }
15182
15183 fn previous_row(&self) -> Self {
15184 Self(self.0.saturating_sub(1))
15185 }
15186
15187 fn minus(&self, other: Self) -> u32 {
15188 self.0 - other.0
15189 }
15190}
15191
15192impl RowExt for MultiBufferRow {
15193 fn as_f32(&self) -> f32 {
15194 self.0 as f32
15195 }
15196
15197 fn next_row(&self) -> Self {
15198 Self(self.0 + 1)
15199 }
15200
15201 fn previous_row(&self) -> Self {
15202 Self(self.0.saturating_sub(1))
15203 }
15204
15205 fn minus(&self, other: Self) -> u32 {
15206 self.0 - other.0
15207 }
15208}
15209
15210trait RowRangeExt {
15211 type Row;
15212
15213 fn len(&self) -> usize;
15214
15215 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15216}
15217
15218impl RowRangeExt for Range<MultiBufferRow> {
15219 type Row = MultiBufferRow;
15220
15221 fn len(&self) -> usize {
15222 (self.end.0 - self.start.0) as usize
15223 }
15224
15225 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15226 (self.start.0..self.end.0).map(MultiBufferRow)
15227 }
15228}
15229
15230impl RowRangeExt for Range<DisplayRow> {
15231 type Row = DisplayRow;
15232
15233 fn len(&self) -> usize {
15234 (self.end.0 - self.start.0) as usize
15235 }
15236
15237 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15238 (self.start.0..self.end.0).map(DisplayRow)
15239 }
15240}
15241
15242fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15243 if hunk.diff_base_byte_range.is_empty() {
15244 DiffHunkStatus::Added
15245 } else if hunk.row_range.is_empty() {
15246 DiffHunkStatus::Removed
15247 } else {
15248 DiffHunkStatus::Modified
15249 }
15250}
15251
15252/// If select range has more than one line, we
15253/// just point the cursor to range.start.
15254fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15255 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15256 range
15257 } else {
15258 range.start..range.start
15259 }
15260}
15261pub struct KillRing(ClipboardItem);
15262impl Global for KillRing {}
15263
15264const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);
15265
15266fn all_edits_insertions_or_deletions(
15267 edits: &Vec<(Range<Anchor>, String)>,
15268 snapshot: &MultiBufferSnapshot,
15269) -> bool {
15270 let mut all_insertions = true;
15271 let mut all_deletions = true;
15272
15273 for (range, new_text) in edits.iter() {
15274 let range_is_empty = range.to_offset(&snapshot).is_empty();
15275 let text_is_empty = new_text.is_empty();
15276
15277 if range_is_empty != text_is_empty {
15278 if range_is_empty {
15279 all_deletions = false;
15280 } else {
15281 all_insertions = false;
15282 }
15283 } else {
15284 return false;
15285 }
15286
15287 if !all_insertions && !all_deletions {
15288 return false;
15289 }
15290 }
15291 all_insertions || all_deletions
15292}