1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behavior.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod clangd_ext;
19mod code_context_menus;
20pub mod display_map;
21mod editor_settings;
22mod editor_settings_controls;
23mod element;
24mod git;
25mod highlight_matching_bracket;
26mod hover_links;
27mod hover_popover;
28mod hunk_diff;
29mod indent_guides;
30mod inlay_hint_cache;
31pub mod items;
32mod linked_editing_ranges;
33mod lsp_ext;
34mod mouse_context_menu;
35pub mod movement;
36mod persistence;
37mod proposed_changes_editor;
38mod rust_analyzer_ext;
39pub mod scroll;
40mod selections_collection;
41pub mod tasks;
42
43#[cfg(test)]
44mod editor_tests;
45#[cfg(test)]
46mod inline_completion_tests;
47mod signature_help;
48#[cfg(any(test, feature = "test-support"))]
49pub mod test;
50
51use ::git::diff::DiffHunkStatus;
52pub(crate) use actions::*;
53pub use actions::{OpenExcerpts, OpenExcerptsSplit};
54use aho_corasick::AhoCorasick;
55use anyhow::{anyhow, Context as _, Result};
56use blink_manager::BlinkManager;
57use client::{Collaborator, ParticipantIndex};
58use clock::ReplicaId;
59use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
60use convert_case::{Case, Casing};
61use display_map::*;
62pub use display_map::{DisplayPoint, FoldPlaceholder};
63pub use editor_settings::{
64 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
65};
66pub use editor_settings_controls::*;
67use element::LineWithInvisibles;
68pub use element::{
69 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
70};
71use futures::{future, FutureExt};
72use fuzzy::StringMatchCandidate;
73
74use code_context_menus::{
75 AvailableCodeAction, CodeActionContents, CodeActionsItem, CodeActionsMenu, CodeContextMenu,
76 CompletionEntry, CompletionsMenu, ContextMenuOrigin,
77};
78use git::blame::GitBlame;
79use gpui::{
80 div, impl_actions, point, prelude::*, px, relative, size, Action, AnyElement, AppContext,
81 AsyncWindowContext, AvailableSpace, Bounds, ClipboardEntry, ClipboardItem, Context,
82 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent, FocusableView, FontId,
83 FontWeight, Global, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, ModelContext,
84 MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString, Size, Styled, StyledText,
85 Subscription, Task, TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle,
86 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle,
87 WeakView, WindowContext,
88};
89use highlight_matching_bracket::refresh_matching_bracket_highlights;
90use hover_popover::{hide_hover, HoverState};
91pub(crate) use hunk_diff::HoveredHunk;
92use hunk_diff::{diff_hunk_to_display, DiffMap, DiffMapSnapshot};
93use indent_guides::ActiveIndentGuidesState;
94use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
95pub use inline_completion::Direction;
96use inline_completion::{InlineCompletionProvider, InlineCompletionProviderHandle};
97pub use items::MAX_TAB_TITLE_LEN;
98use itertools::Itertools;
99use language::{
100 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
101 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
102 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
103 Point, Selection, SelectionGoal, TransactionId,
104};
105use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
106use linked_editing_ranges::refresh_linked_ranges;
107use mouse_context_menu::MouseContextMenu;
108pub use proposed_changes_editor::{
109 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
110};
111use similar::{ChangeTag, TextDiff};
112use std::iter::Peekable;
113use task::{ResolvedTask, TaskTemplate, TaskVariables};
114
115use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
116pub use lsp::CompletionContext;
117use lsp::{
118 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
119 LanguageServerId, LanguageServerName,
120};
121
122use movement::TextLayoutDetails;
123pub use multi_buffer::{
124 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
125 ToPoint,
126};
127use multi_buffer::{
128 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
129};
130use project::{
131 buffer_store::BufferChangeSet,
132 lsp_store::{FormatTrigger, LspFormatTarget, OpenLspBufferHandle},
133 project_settings::{GitGutterSetting, ProjectSettings},
134 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
135 LspStore, PrepareRenameResponse, Project, ProjectItem, ProjectTransaction, TaskSourceKind,
136};
137use rand::prelude::*;
138use rpc::{proto::*, ErrorExt};
139use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
140use selections_collection::{
141 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
142};
143use serde::{Deserialize, Serialize};
144use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
145use smallvec::SmallVec;
146use snippet::Snippet;
147use std::{
148 any::TypeId,
149 borrow::Cow,
150 cell::RefCell,
151 cmp::{self, Ordering, Reverse},
152 mem,
153 num::NonZeroU32,
154 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
155 path::{Path, PathBuf},
156 rc::Rc,
157 sync::Arc,
158 time::{Duration, Instant},
159};
160pub use sum_tree::Bias;
161use sum_tree::TreeMap;
162use text::{BufferId, OffsetUtf16, Rope};
163use theme::{ActiveTheme, PlayerColor, StatusColors, SyntaxTheme, ThemeColors, ThemeSettings};
164use ui::{
165 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
166 PopoverMenuHandle, Tooltip,
167};
168use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
169use workspace::item::{ItemHandle, PreviewTabsSettings};
170use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
171use workspace::{
172 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
173};
174use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
175
176use crate::hover_links::{find_url, find_url_from_range};
177use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
178
179pub const FILE_HEADER_HEIGHT: u32 = 2;
180pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
181pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
182pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
183const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
184const MAX_LINE_LEN: usize = 1024;
185const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
186const MAX_SELECTION_HISTORY_LEN: usize = 1024;
187pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
188#[doc(hidden)]
189pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
190
191pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
192pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
193
194pub fn render_parsed_markdown(
195 element_id: impl Into<ElementId>,
196 parsed: &language::ParsedMarkdown,
197 editor_style: &EditorStyle,
198 workspace: Option<WeakView<Workspace>>,
199 cx: &mut WindowContext,
200) -> InteractiveText {
201 let code_span_background_color = cx
202 .theme()
203 .colors()
204 .editor_document_highlight_read_background;
205
206 let highlights = gpui::combine_highlights(
207 parsed.highlights.iter().filter_map(|(range, highlight)| {
208 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
209 Some((range.clone(), highlight))
210 }),
211 parsed
212 .regions
213 .iter()
214 .zip(&parsed.region_ranges)
215 .filter_map(|(region, range)| {
216 if region.code {
217 Some((
218 range.clone(),
219 HighlightStyle {
220 background_color: Some(code_span_background_color),
221 ..Default::default()
222 },
223 ))
224 } else {
225 None
226 }
227 }),
228 );
229
230 let mut links = Vec::new();
231 let mut link_ranges = Vec::new();
232 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
233 if let Some(link) = region.link.clone() {
234 links.push(link);
235 link_ranges.push(range.clone());
236 }
237 }
238
239 InteractiveText::new(
240 element_id,
241 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
242 )
243 .on_click(link_ranges, move |clicked_range_ix, cx| {
244 match &links[clicked_range_ix] {
245 markdown::Link::Web { url } => cx.open_url(url),
246 markdown::Link::Path { path } => {
247 if let Some(workspace) = &workspace {
248 _ = workspace.update(cx, |workspace, cx| {
249 workspace.open_abs_path(path.clone(), false, cx).detach();
250 });
251 }
252 }
253 }
254 })
255}
256
257#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
258pub enum InlayId {
259 InlineCompletion(usize),
260 Hint(usize),
261}
262
263impl InlayId {
264 fn id(&self) -> usize {
265 match self {
266 Self::InlineCompletion(id) => *id,
267 Self::Hint(id) => *id,
268 }
269 }
270}
271
272enum DiffRowHighlight {}
273enum DocumentHighlightRead {}
274enum DocumentHighlightWrite {}
275enum InputComposition {}
276
277#[derive(Debug, Copy, Clone, PartialEq, Eq)]
278pub enum Navigated {
279 Yes,
280 No,
281}
282
283impl Navigated {
284 pub fn from_bool(yes: bool) -> Navigated {
285 if yes {
286 Navigated::Yes
287 } else {
288 Navigated::No
289 }
290 }
291}
292
293pub fn init_settings(cx: &mut AppContext) {
294 EditorSettings::register(cx);
295}
296
297pub fn init(cx: &mut AppContext) {
298 init_settings(cx);
299
300 workspace::register_project_item::<Editor>(cx);
301 workspace::FollowableViewRegistry::register::<Editor>(cx);
302 workspace::register_serializable_item::<Editor>(cx);
303
304 cx.observe_new_views(
305 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
306 workspace.register_action(Editor::new_file);
307 workspace.register_action(Editor::new_file_vertical);
308 workspace.register_action(Editor::new_file_horizontal);
309 },
310 )
311 .detach();
312
313 cx.on_action(move |_: &workspace::NewFile, cx| {
314 let app_state = workspace::AppState::global(cx);
315 if let Some(app_state) = app_state.upgrade() {
316 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
317 Editor::new_file(workspace, &Default::default(), cx)
318 })
319 .detach();
320 }
321 });
322 cx.on_action(move |_: &workspace::NewWindow, cx| {
323 let app_state = workspace::AppState::global(cx);
324 if let Some(app_state) = app_state.upgrade() {
325 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
326 Editor::new_file(workspace, &Default::default(), cx)
327 })
328 .detach();
329 }
330 });
331 git::project_diff::init(cx);
332}
333
334pub struct SearchWithinRange;
335
336trait InvalidationRegion {
337 fn ranges(&self) -> &[Range<Anchor>];
338}
339
340#[derive(Clone, Debug, PartialEq)]
341pub enum SelectPhase {
342 Begin {
343 position: DisplayPoint,
344 add: bool,
345 click_count: usize,
346 },
347 BeginColumnar {
348 position: DisplayPoint,
349 reset: bool,
350 goal_column: u32,
351 },
352 Extend {
353 position: DisplayPoint,
354 click_count: usize,
355 },
356 Update {
357 position: DisplayPoint,
358 goal_column: u32,
359 scroll_delta: gpui::Point<f32>,
360 },
361 End,
362}
363
364#[derive(Clone, Debug)]
365pub enum SelectMode {
366 Character,
367 Word(Range<Anchor>),
368 Line(Range<Anchor>),
369 All,
370}
371
372#[derive(Copy, Clone, PartialEq, Eq, Debug)]
373pub enum EditorMode {
374 SingleLine { auto_width: bool },
375 AutoHeight { max_lines: usize },
376 Full,
377}
378
379#[derive(Copy, Clone, Debug)]
380pub enum SoftWrap {
381 /// Prefer not to wrap at all.
382 ///
383 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
384 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
385 GitDiff,
386 /// Prefer a single line generally, unless an overly long line is encountered.
387 None,
388 /// Soft wrap lines that exceed the editor width.
389 EditorWidth,
390 /// Soft wrap lines at the preferred line length.
391 Column(u32),
392 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
393 Bounded(u32),
394}
395
396#[derive(Clone)]
397pub struct EditorStyle {
398 pub background: Hsla,
399 pub local_player: PlayerColor,
400 pub text: TextStyle,
401 pub scrollbar_width: Pixels,
402 pub syntax: Arc<SyntaxTheme>,
403 pub status: StatusColors,
404 pub inlay_hints_style: HighlightStyle,
405 pub inline_completion_styles: InlineCompletionStyles,
406 pub unnecessary_code_fade: f32,
407}
408
409impl Default for EditorStyle {
410 fn default() -> Self {
411 Self {
412 background: Hsla::default(),
413 local_player: PlayerColor::default(),
414 text: TextStyle::default(),
415 scrollbar_width: Pixels::default(),
416 syntax: Default::default(),
417 // HACK: Status colors don't have a real default.
418 // We should look into removing the status colors from the editor
419 // style and retrieve them directly from the theme.
420 status: StatusColors::dark(),
421 inlay_hints_style: HighlightStyle::default(),
422 inline_completion_styles: InlineCompletionStyles {
423 insertion: HighlightStyle::default(),
424 whitespace: HighlightStyle::default(),
425 },
426 unnecessary_code_fade: Default::default(),
427 }
428 }
429}
430
431pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
432 let show_background = language_settings::language_settings(None, None, cx)
433 .inlay_hints
434 .show_background;
435
436 HighlightStyle {
437 color: Some(cx.theme().status().hint),
438 background_color: show_background.then(|| cx.theme().status().hint_background),
439 ..HighlightStyle::default()
440 }
441}
442
443pub fn make_suggestion_styles(cx: &WindowContext) -> InlineCompletionStyles {
444 InlineCompletionStyles {
445 insertion: HighlightStyle {
446 color: Some(cx.theme().status().predictive),
447 ..HighlightStyle::default()
448 },
449 whitespace: HighlightStyle {
450 background_color: Some(cx.theme().status().created_background),
451 ..HighlightStyle::default()
452 },
453 }
454}
455
456type CompletionId = usize;
457
458#[derive(Debug, Clone)]
459enum InlineCompletionMenuHint {
460 Loading,
461 Loaded { text: InlineCompletionText },
462 None,
463}
464
465impl InlineCompletionMenuHint {
466 pub fn label(&self) -> &'static str {
467 match self {
468 InlineCompletionMenuHint::Loading | InlineCompletionMenuHint::Loaded { .. } => {
469 "Edit Prediction"
470 }
471 InlineCompletionMenuHint::None => "No Prediction",
472 }
473 }
474}
475
476#[derive(Clone, Debug)]
477enum InlineCompletionText {
478 Move(SharedString),
479 Edit {
480 text: SharedString,
481 highlights: Vec<(Range<usize>, HighlightStyle)>,
482 },
483}
484
485enum InlineCompletion {
486 Edit(Vec<(Range<Anchor>, String)>),
487 Move(Anchor),
488}
489
490struct InlineCompletionState {
491 inlay_ids: Vec<InlayId>,
492 completion: InlineCompletion,
493 invalidation_range: Range<Anchor>,
494}
495
496enum InlineCompletionHighlight {}
497
498#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
499struct EditorActionId(usize);
500
501impl EditorActionId {
502 pub fn post_inc(&mut self) -> Self {
503 let answer = self.0;
504
505 *self = Self(answer + 1);
506
507 Self(answer)
508 }
509}
510
511// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
512// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
513
514type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
515type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
516
517#[derive(Default)]
518struct ScrollbarMarkerState {
519 scrollbar_size: Size<Pixels>,
520 dirty: bool,
521 markers: Arc<[PaintQuad]>,
522 pending_refresh: Option<Task<Result<()>>>,
523}
524
525impl ScrollbarMarkerState {
526 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
527 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
528 }
529}
530
531#[derive(Clone, Debug)]
532struct RunnableTasks {
533 templates: Vec<(TaskSourceKind, TaskTemplate)>,
534 offset: MultiBufferOffset,
535 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
536 column: u32,
537 // Values of all named captures, including those starting with '_'
538 extra_variables: HashMap<String, String>,
539 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
540 context_range: Range<BufferOffset>,
541}
542
543impl RunnableTasks {
544 fn resolve<'a>(
545 &'a self,
546 cx: &'a task::TaskContext,
547 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
548 self.templates.iter().filter_map(|(kind, template)| {
549 template
550 .resolve_task(&kind.to_id_base(), cx)
551 .map(|task| (kind.clone(), task))
552 })
553 }
554}
555
556#[derive(Clone)]
557struct ResolvedTasks {
558 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
559 position: Anchor,
560}
561#[derive(Copy, Clone, Debug)]
562struct MultiBufferOffset(usize);
563#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
564struct BufferOffset(usize);
565
566// Addons allow storing per-editor state in other crates (e.g. Vim)
567pub trait Addon: 'static {
568 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
569
570 fn to_any(&self) -> &dyn std::any::Any;
571}
572
573#[derive(Debug, Copy, Clone, PartialEq, Eq)]
574pub enum IsVimMode {
575 Yes,
576 No,
577}
578
579/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
580///
581/// See the [module level documentation](self) for more information.
582pub struct Editor {
583 focus_handle: FocusHandle,
584 last_focused_descendant: Option<WeakFocusHandle>,
585 /// The text buffer being edited
586 buffer: Model<MultiBuffer>,
587 /// Map of how text in the buffer should be displayed.
588 /// Handles soft wraps, folds, fake inlay text insertions, etc.
589 pub display_map: Model<DisplayMap>,
590 pub selections: SelectionsCollection,
591 pub scroll_manager: ScrollManager,
592 /// When inline assist editors are linked, they all render cursors because
593 /// typing enters text into each of them, even the ones that aren't focused.
594 pub(crate) show_cursor_when_unfocused: bool,
595 columnar_selection_tail: Option<Anchor>,
596 add_selections_state: Option<AddSelectionsState>,
597 select_next_state: Option<SelectNextState>,
598 select_prev_state: Option<SelectNextState>,
599 selection_history: SelectionHistory,
600 autoclose_regions: Vec<AutocloseRegion>,
601 snippet_stack: InvalidationStack<SnippetState>,
602 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
603 ime_transaction: Option<TransactionId>,
604 active_diagnostics: Option<ActiveDiagnosticGroup>,
605 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
606
607 project: Option<Model<Project>>,
608 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
609 completion_provider: Option<Box<dyn CompletionProvider>>,
610 collaboration_hub: Option<Box<dyn CollaborationHub>>,
611 blink_manager: Model<BlinkManager>,
612 show_cursor_names: bool,
613 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
614 pub show_local_selections: bool,
615 mode: EditorMode,
616 show_breadcrumbs: bool,
617 show_gutter: bool,
618 show_scrollbars: bool,
619 show_line_numbers: Option<bool>,
620 use_relative_line_numbers: Option<bool>,
621 show_git_diff_gutter: Option<bool>,
622 show_code_actions: Option<bool>,
623 show_runnables: Option<bool>,
624 show_wrap_guides: Option<bool>,
625 show_indent_guides: Option<bool>,
626 placeholder_text: Option<Arc<str>>,
627 highlight_order: usize,
628 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
629 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
630 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
631 scrollbar_marker_state: ScrollbarMarkerState,
632 active_indent_guides_state: ActiveIndentGuidesState,
633 nav_history: Option<ItemNavHistory>,
634 context_menu: RefCell<Option<CodeContextMenu>>,
635 mouse_context_menu: Option<MouseContextMenu>,
636 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
637 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
638 signature_help_state: SignatureHelpState,
639 auto_signature_help: Option<bool>,
640 find_all_references_task_sources: Vec<Anchor>,
641 next_completion_id: CompletionId,
642 available_code_actions: Option<(Location, Rc<[AvailableCodeAction]>)>,
643 code_actions_task: Option<Task<Result<()>>>,
644 document_highlights_task: Option<Task<()>>,
645 linked_editing_range_task: Option<Task<Option<()>>>,
646 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
647 pending_rename: Option<RenameState>,
648 searchable: bool,
649 cursor_shape: CursorShape,
650 current_line_highlight: Option<CurrentLineHighlight>,
651 collapse_matches: bool,
652 autoindent_mode: Option<AutoindentMode>,
653 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
654 input_enabled: bool,
655 use_modal_editing: bool,
656 read_only: bool,
657 leader_peer_id: Option<PeerId>,
658 remote_id: Option<ViewId>,
659 hover_state: HoverState,
660 gutter_hovered: bool,
661 hovered_link_state: Option<HoveredLinkState>,
662 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
663 code_action_providers: Vec<Rc<dyn CodeActionProvider>>,
664 active_inline_completion: Option<InlineCompletionState>,
665 // enable_inline_completions is a switch that Vim can use to disable
666 // inline completions based on its mode.
667 enable_inline_completions: bool,
668 show_inline_completions_override: Option<bool>,
669 inlay_hint_cache: InlayHintCache,
670 diff_map: DiffMap,
671 next_inlay_id: usize,
672 _subscriptions: Vec<Subscription>,
673 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
674 gutter_dimensions: GutterDimensions,
675 style: Option<EditorStyle>,
676 text_style_refinement: Option<TextStyleRefinement>,
677 next_editor_action_id: EditorActionId,
678 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
679 use_autoclose: bool,
680 use_auto_surround: bool,
681 auto_replace_emoji_shortcode: bool,
682 show_git_blame_gutter: bool,
683 show_git_blame_inline: bool,
684 show_git_blame_inline_delay_task: Option<Task<()>>,
685 git_blame_inline_enabled: bool,
686 serialize_dirty_buffers: bool,
687 show_selection_menu: Option<bool>,
688 blame: Option<Model<GitBlame>>,
689 blame_subscription: Option<Subscription>,
690 custom_context_menu: Option<
691 Box<
692 dyn 'static
693 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
694 >,
695 >,
696 last_bounds: Option<Bounds<Pixels>>,
697 expect_bounds_change: Option<Bounds<Pixels>>,
698 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
699 tasks_update_task: Option<Task<()>>,
700 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
701 breadcrumb_header: Option<String>,
702 focused_block: Option<FocusedBlock>,
703 next_scroll_position: NextScrollCursorCenterTopBottom,
704 addons: HashMap<TypeId, Box<dyn Addon>>,
705 registered_buffers: HashMap<BufferId, OpenLspBufferHandle>,
706 toggle_fold_multiple_buffers: Task<()>,
707 _scroll_cursor_center_top_bottom_task: Task<()>,
708}
709
710#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
711enum NextScrollCursorCenterTopBottom {
712 #[default]
713 Center,
714 Top,
715 Bottom,
716}
717
718impl NextScrollCursorCenterTopBottom {
719 fn next(&self) -> Self {
720 match self {
721 Self::Center => Self::Top,
722 Self::Top => Self::Bottom,
723 Self::Bottom => Self::Center,
724 }
725 }
726}
727
728#[derive(Clone)]
729pub struct EditorSnapshot {
730 pub mode: EditorMode,
731 show_gutter: bool,
732 show_line_numbers: Option<bool>,
733 show_git_diff_gutter: Option<bool>,
734 show_code_actions: Option<bool>,
735 show_runnables: Option<bool>,
736 git_blame_gutter_max_author_length: Option<usize>,
737 pub display_snapshot: DisplaySnapshot,
738 pub placeholder_text: Option<Arc<str>>,
739 diff_map: DiffMapSnapshot,
740 is_focused: bool,
741 scroll_anchor: ScrollAnchor,
742 ongoing_scroll: OngoingScroll,
743 current_line_highlight: CurrentLineHighlight,
744 gutter_hovered: bool,
745}
746
747const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
748
749#[derive(Default, Debug, Clone, Copy)]
750pub struct GutterDimensions {
751 pub left_padding: Pixels,
752 pub right_padding: Pixels,
753 pub width: Pixels,
754 pub margin: Pixels,
755 pub git_blame_entries_width: Option<Pixels>,
756}
757
758impl GutterDimensions {
759 /// The full width of the space taken up by the gutter.
760 pub fn full_width(&self) -> Pixels {
761 self.margin + self.width
762 }
763
764 /// The width of the space reserved for the fold indicators,
765 /// use alongside 'justify_end' and `gutter_width` to
766 /// right align content with the line numbers
767 pub fn fold_area_width(&self) -> Pixels {
768 self.margin + self.right_padding
769 }
770}
771
772#[derive(Debug)]
773pub struct RemoteSelection {
774 pub replica_id: ReplicaId,
775 pub selection: Selection<Anchor>,
776 pub cursor_shape: CursorShape,
777 pub peer_id: PeerId,
778 pub line_mode: bool,
779 pub participant_index: Option<ParticipantIndex>,
780 pub user_name: Option<SharedString>,
781}
782
783#[derive(Clone, Debug)]
784struct SelectionHistoryEntry {
785 selections: Arc<[Selection<Anchor>]>,
786 select_next_state: Option<SelectNextState>,
787 select_prev_state: Option<SelectNextState>,
788 add_selections_state: Option<AddSelectionsState>,
789}
790
791enum SelectionHistoryMode {
792 Normal,
793 Undoing,
794 Redoing,
795}
796
797#[derive(Clone, PartialEq, Eq, Hash)]
798struct HoveredCursor {
799 replica_id: u16,
800 selection_id: usize,
801}
802
803impl Default for SelectionHistoryMode {
804 fn default() -> Self {
805 Self::Normal
806 }
807}
808
809#[derive(Default)]
810struct SelectionHistory {
811 #[allow(clippy::type_complexity)]
812 selections_by_transaction:
813 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
814 mode: SelectionHistoryMode,
815 undo_stack: VecDeque<SelectionHistoryEntry>,
816 redo_stack: VecDeque<SelectionHistoryEntry>,
817}
818
819impl SelectionHistory {
820 fn insert_transaction(
821 &mut self,
822 transaction_id: TransactionId,
823 selections: Arc<[Selection<Anchor>]>,
824 ) {
825 self.selections_by_transaction
826 .insert(transaction_id, (selections, None));
827 }
828
829 #[allow(clippy::type_complexity)]
830 fn transaction(
831 &self,
832 transaction_id: TransactionId,
833 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
834 self.selections_by_transaction.get(&transaction_id)
835 }
836
837 #[allow(clippy::type_complexity)]
838 fn transaction_mut(
839 &mut self,
840 transaction_id: TransactionId,
841 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
842 self.selections_by_transaction.get_mut(&transaction_id)
843 }
844
845 fn push(&mut self, entry: SelectionHistoryEntry) {
846 if !entry.selections.is_empty() {
847 match self.mode {
848 SelectionHistoryMode::Normal => {
849 self.push_undo(entry);
850 self.redo_stack.clear();
851 }
852 SelectionHistoryMode::Undoing => self.push_redo(entry),
853 SelectionHistoryMode::Redoing => self.push_undo(entry),
854 }
855 }
856 }
857
858 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
859 if self
860 .undo_stack
861 .back()
862 .map_or(true, |e| e.selections != entry.selections)
863 {
864 self.undo_stack.push_back(entry);
865 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
866 self.undo_stack.pop_front();
867 }
868 }
869 }
870
871 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
872 if self
873 .redo_stack
874 .back()
875 .map_or(true, |e| e.selections != entry.selections)
876 {
877 self.redo_stack.push_back(entry);
878 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
879 self.redo_stack.pop_front();
880 }
881 }
882 }
883}
884
885struct RowHighlight {
886 index: usize,
887 range: Range<Anchor>,
888 color: Hsla,
889 should_autoscroll: bool,
890}
891
892#[derive(Clone, Debug)]
893struct AddSelectionsState {
894 above: bool,
895 stack: Vec<usize>,
896}
897
898#[derive(Clone)]
899struct SelectNextState {
900 query: AhoCorasick,
901 wordwise: bool,
902 done: bool,
903}
904
905impl std::fmt::Debug for SelectNextState {
906 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
907 f.debug_struct(std::any::type_name::<Self>())
908 .field("wordwise", &self.wordwise)
909 .field("done", &self.done)
910 .finish()
911 }
912}
913
914#[derive(Debug)]
915struct AutocloseRegion {
916 selection_id: usize,
917 range: Range<Anchor>,
918 pair: BracketPair,
919}
920
921#[derive(Debug)]
922struct SnippetState {
923 ranges: Vec<Vec<Range<Anchor>>>,
924 active_index: usize,
925 choices: Vec<Option<Vec<String>>>,
926}
927
928#[doc(hidden)]
929pub struct RenameState {
930 pub range: Range<Anchor>,
931 pub old_name: Arc<str>,
932 pub editor: View<Editor>,
933 block_id: CustomBlockId,
934}
935
936struct InvalidationStack<T>(Vec<T>);
937
938struct RegisteredInlineCompletionProvider {
939 provider: Arc<dyn InlineCompletionProviderHandle>,
940 _subscription: Subscription,
941}
942
943#[derive(Debug)]
944struct ActiveDiagnosticGroup {
945 primary_range: Range<Anchor>,
946 primary_message: String,
947 group_id: usize,
948 blocks: HashMap<CustomBlockId, Diagnostic>,
949 is_valid: bool,
950}
951
952#[derive(Serialize, Deserialize, Clone, Debug)]
953pub struct ClipboardSelection {
954 pub len: usize,
955 pub is_entire_line: bool,
956 pub first_line_indent: u32,
957}
958
959#[derive(Debug)]
960pub(crate) struct NavigationData {
961 cursor_anchor: Anchor,
962 cursor_position: Point,
963 scroll_anchor: ScrollAnchor,
964 scroll_top_row: u32,
965}
966
967#[derive(Debug, Clone, Copy, PartialEq, Eq)]
968pub enum GotoDefinitionKind {
969 Symbol,
970 Declaration,
971 Type,
972 Implementation,
973}
974
975#[derive(Debug, Clone)]
976enum InlayHintRefreshReason {
977 Toggle(bool),
978 SettingsChange(InlayHintSettings),
979 NewLinesShown,
980 BufferEdited(HashSet<Arc<Language>>),
981 RefreshRequested,
982 ExcerptsRemoved(Vec<ExcerptId>),
983}
984
985impl InlayHintRefreshReason {
986 fn description(&self) -> &'static str {
987 match self {
988 Self::Toggle(_) => "toggle",
989 Self::SettingsChange(_) => "settings change",
990 Self::NewLinesShown => "new lines shown",
991 Self::BufferEdited(_) => "buffer edited",
992 Self::RefreshRequested => "refresh requested",
993 Self::ExcerptsRemoved(_) => "excerpts removed",
994 }
995 }
996}
997
998pub enum FormatTarget {
999 Buffers,
1000 Ranges(Vec<Range<MultiBufferPoint>>),
1001}
1002
1003pub(crate) struct FocusedBlock {
1004 id: BlockId,
1005 focus_handle: WeakFocusHandle,
1006}
1007
1008#[derive(Clone)]
1009enum JumpData {
1010 MultiBufferRow {
1011 row: MultiBufferRow,
1012 line_offset_from_top: u32,
1013 },
1014 MultiBufferPoint {
1015 excerpt_id: ExcerptId,
1016 position: Point,
1017 anchor: text::Anchor,
1018 line_offset_from_top: u32,
1019 },
1020}
1021
1022impl Editor {
1023 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1024 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1025 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1026 Self::new(
1027 EditorMode::SingleLine { auto_width: false },
1028 buffer,
1029 None,
1030 false,
1031 cx,
1032 )
1033 }
1034
1035 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1036 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1037 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1038 Self::new(EditorMode::Full, buffer, None, false, cx)
1039 }
1040
1041 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1042 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1043 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1044 Self::new(
1045 EditorMode::SingleLine { auto_width: true },
1046 buffer,
1047 None,
1048 false,
1049 cx,
1050 )
1051 }
1052
1053 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1054 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1055 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1056 Self::new(
1057 EditorMode::AutoHeight { max_lines },
1058 buffer,
1059 None,
1060 false,
1061 cx,
1062 )
1063 }
1064
1065 pub fn for_buffer(
1066 buffer: Model<Buffer>,
1067 project: Option<Model<Project>>,
1068 cx: &mut ViewContext<Self>,
1069 ) -> Self {
1070 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1071 Self::new(EditorMode::Full, buffer, project, false, cx)
1072 }
1073
1074 pub fn for_multibuffer(
1075 buffer: Model<MultiBuffer>,
1076 project: Option<Model<Project>>,
1077 show_excerpt_controls: bool,
1078 cx: &mut ViewContext<Self>,
1079 ) -> Self {
1080 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1081 }
1082
1083 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1084 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1085 let mut clone = Self::new(
1086 self.mode,
1087 self.buffer.clone(),
1088 self.project.clone(),
1089 show_excerpt_controls,
1090 cx,
1091 );
1092 self.display_map.update(cx, |display_map, cx| {
1093 let snapshot = display_map.snapshot(cx);
1094 clone.display_map.update(cx, |display_map, cx| {
1095 display_map.set_state(&snapshot, cx);
1096 });
1097 });
1098 clone.selections.clone_state(&self.selections);
1099 clone.scroll_manager.clone_state(&self.scroll_manager);
1100 clone.searchable = self.searchable;
1101 clone
1102 }
1103
1104 pub fn new(
1105 mode: EditorMode,
1106 buffer: Model<MultiBuffer>,
1107 project: Option<Model<Project>>,
1108 show_excerpt_controls: bool,
1109 cx: &mut ViewContext<Self>,
1110 ) -> Self {
1111 let style = cx.text_style();
1112 let font_size = style.font_size.to_pixels(cx.rem_size());
1113 let editor = cx.view().downgrade();
1114 let fold_placeholder = FoldPlaceholder {
1115 constrain_width: true,
1116 render: Arc::new(move |fold_id, fold_range, cx| {
1117 let editor = editor.clone();
1118 div()
1119 .id(fold_id)
1120 .bg(cx.theme().colors().ghost_element_background)
1121 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1122 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1123 .rounded_sm()
1124 .size_full()
1125 .cursor_pointer()
1126 .child("⋯")
1127 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1128 .on_click(move |_, cx| {
1129 editor
1130 .update(cx, |editor, cx| {
1131 editor.unfold_ranges(
1132 &[fold_range.start..fold_range.end],
1133 true,
1134 false,
1135 cx,
1136 );
1137 cx.stop_propagation();
1138 })
1139 .ok();
1140 })
1141 .into_any()
1142 }),
1143 merge_adjacent: true,
1144 ..Default::default()
1145 };
1146 let display_map = cx.new_model(|cx| {
1147 DisplayMap::new(
1148 buffer.clone(),
1149 style.font(),
1150 font_size,
1151 None,
1152 show_excerpt_controls,
1153 FILE_HEADER_HEIGHT,
1154 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1155 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1156 fold_placeholder,
1157 cx,
1158 )
1159 });
1160
1161 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1162
1163 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1164
1165 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1166 .then(|| language_settings::SoftWrap::None);
1167
1168 let mut project_subscriptions = Vec::new();
1169 if mode == EditorMode::Full {
1170 if let Some(project) = project.as_ref() {
1171 if buffer.read(cx).is_singleton() {
1172 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1173 cx.emit(EditorEvent::TitleChanged);
1174 }));
1175 }
1176 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1177 if let project::Event::RefreshInlayHints = event {
1178 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1179 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1180 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1181 let focus_handle = editor.focus_handle(cx);
1182 if focus_handle.is_focused(cx) {
1183 let snapshot = buffer.read(cx).snapshot();
1184 for (range, snippet) in snippet_edits {
1185 let editor_range =
1186 language::range_from_lsp(*range).to_offset(&snapshot);
1187 editor
1188 .insert_snippet(&[editor_range], snippet.clone(), cx)
1189 .ok();
1190 }
1191 }
1192 }
1193 }
1194 }));
1195 if let Some(task_inventory) = project
1196 .read(cx)
1197 .task_store()
1198 .read(cx)
1199 .task_inventory()
1200 .cloned()
1201 {
1202 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1203 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1204 }));
1205 }
1206 }
1207 }
1208
1209 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1210
1211 let inlay_hint_settings =
1212 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1213 let focus_handle = cx.focus_handle();
1214 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1215 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1216 .detach();
1217 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1218 .detach();
1219 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1220
1221 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1222 Some(false)
1223 } else {
1224 None
1225 };
1226
1227 let mut code_action_providers = Vec::new();
1228 if let Some(project) = project.clone() {
1229 get_unstaged_changes_for_buffers(&project, buffer.read(cx).all_buffers(), cx);
1230 code_action_providers.push(Rc::new(project) as Rc<_>);
1231 }
1232
1233 let mut this = Self {
1234 focus_handle,
1235 show_cursor_when_unfocused: false,
1236 last_focused_descendant: None,
1237 buffer: buffer.clone(),
1238 display_map: display_map.clone(),
1239 selections,
1240 scroll_manager: ScrollManager::new(cx),
1241 columnar_selection_tail: None,
1242 add_selections_state: None,
1243 select_next_state: None,
1244 select_prev_state: None,
1245 selection_history: Default::default(),
1246 autoclose_regions: Default::default(),
1247 snippet_stack: Default::default(),
1248 select_larger_syntax_node_stack: Vec::new(),
1249 ime_transaction: Default::default(),
1250 active_diagnostics: None,
1251 soft_wrap_mode_override,
1252 completion_provider: project.clone().map(|project| Box::new(project) as _),
1253 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1254 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1255 project,
1256 blink_manager: blink_manager.clone(),
1257 show_local_selections: true,
1258 show_scrollbars: true,
1259 mode,
1260 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1261 show_gutter: mode == EditorMode::Full,
1262 show_line_numbers: None,
1263 use_relative_line_numbers: None,
1264 show_git_diff_gutter: None,
1265 show_code_actions: None,
1266 show_runnables: None,
1267 show_wrap_guides: None,
1268 show_indent_guides,
1269 placeholder_text: None,
1270 highlight_order: 0,
1271 highlighted_rows: HashMap::default(),
1272 background_highlights: Default::default(),
1273 gutter_highlights: TreeMap::default(),
1274 scrollbar_marker_state: ScrollbarMarkerState::default(),
1275 active_indent_guides_state: ActiveIndentGuidesState::default(),
1276 nav_history: None,
1277 context_menu: RefCell::new(None),
1278 mouse_context_menu: None,
1279 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1280 completion_tasks: Default::default(),
1281 signature_help_state: SignatureHelpState::default(),
1282 auto_signature_help: None,
1283 find_all_references_task_sources: Vec::new(),
1284 next_completion_id: 0,
1285 next_inlay_id: 0,
1286 code_action_providers,
1287 available_code_actions: Default::default(),
1288 code_actions_task: Default::default(),
1289 document_highlights_task: Default::default(),
1290 linked_editing_range_task: Default::default(),
1291 pending_rename: Default::default(),
1292 searchable: true,
1293 cursor_shape: EditorSettings::get_global(cx)
1294 .cursor_shape
1295 .unwrap_or_default(),
1296 current_line_highlight: None,
1297 autoindent_mode: Some(AutoindentMode::EachLine),
1298 collapse_matches: false,
1299 workspace: None,
1300 input_enabled: true,
1301 use_modal_editing: mode == EditorMode::Full,
1302 read_only: false,
1303 use_autoclose: true,
1304 use_auto_surround: true,
1305 auto_replace_emoji_shortcode: false,
1306 leader_peer_id: None,
1307 remote_id: None,
1308 hover_state: Default::default(),
1309 hovered_link_state: Default::default(),
1310 inline_completion_provider: None,
1311 active_inline_completion: None,
1312 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1313 diff_map: DiffMap::default(),
1314 gutter_hovered: false,
1315 pixel_position_of_newest_cursor: None,
1316 last_bounds: None,
1317 expect_bounds_change: None,
1318 gutter_dimensions: GutterDimensions::default(),
1319 style: None,
1320 show_cursor_names: false,
1321 hovered_cursors: Default::default(),
1322 next_editor_action_id: EditorActionId::default(),
1323 editor_actions: Rc::default(),
1324 show_inline_completions_override: None,
1325 enable_inline_completions: true,
1326 custom_context_menu: None,
1327 show_git_blame_gutter: false,
1328 show_git_blame_inline: false,
1329 show_selection_menu: None,
1330 show_git_blame_inline_delay_task: None,
1331 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1332 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1333 .session
1334 .restore_unsaved_buffers,
1335 blame: None,
1336 blame_subscription: None,
1337 tasks: Default::default(),
1338 _subscriptions: vec![
1339 cx.observe(&buffer, Self::on_buffer_changed),
1340 cx.subscribe(&buffer, Self::on_buffer_event),
1341 cx.observe(&display_map, Self::on_display_map_changed),
1342 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1343 cx.observe_global::<SettingsStore>(Self::settings_changed),
1344 cx.observe_window_activation(|editor, cx| {
1345 let active = cx.is_window_active();
1346 editor.blink_manager.update(cx, |blink_manager, cx| {
1347 if active {
1348 blink_manager.enable(cx);
1349 } else {
1350 blink_manager.disable(cx);
1351 }
1352 });
1353 }),
1354 ],
1355 tasks_update_task: None,
1356 linked_edit_ranges: Default::default(),
1357 previous_search_ranges: None,
1358 breadcrumb_header: None,
1359 focused_block: None,
1360 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1361 addons: HashMap::default(),
1362 registered_buffers: HashMap::default(),
1363 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1364 toggle_fold_multiple_buffers: Task::ready(()),
1365 text_style_refinement: None,
1366 };
1367 this.tasks_update_task = Some(this.refresh_runnables(cx));
1368 this._subscriptions.extend(project_subscriptions);
1369
1370 this.end_selection(cx);
1371 this.scroll_manager.show_scrollbar(cx);
1372
1373 if mode == EditorMode::Full {
1374 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1375 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1376
1377 if this.git_blame_inline_enabled {
1378 this.git_blame_inline_enabled = true;
1379 this.start_git_blame_inline(false, cx);
1380 }
1381
1382 if let Some(buffer) = buffer.read(cx).as_singleton() {
1383 if let Some(project) = this.project.as_ref() {
1384 let lsp_store = project.read(cx).lsp_store();
1385 let handle = lsp_store.update(cx, |lsp_store, cx| {
1386 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1387 });
1388 this.registered_buffers
1389 .insert(buffer.read(cx).remote_id(), handle);
1390 }
1391 }
1392 }
1393
1394 this.report_editor_event("Editor Opened", None, cx);
1395 this
1396 }
1397
1398 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1399 self.mouse_context_menu
1400 .as_ref()
1401 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1402 }
1403
1404 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1405 let mut key_context = KeyContext::new_with_defaults();
1406 key_context.add("Editor");
1407 let mode = match self.mode {
1408 EditorMode::SingleLine { .. } => "single_line",
1409 EditorMode::AutoHeight { .. } => "auto_height",
1410 EditorMode::Full => "full",
1411 };
1412
1413 if EditorSettings::jupyter_enabled(cx) {
1414 key_context.add("jupyter");
1415 }
1416
1417 key_context.set("mode", mode);
1418 if self.pending_rename.is_some() {
1419 key_context.add("renaming");
1420 }
1421 match self.context_menu.borrow().as_ref() {
1422 Some(CodeContextMenu::Completions(_)) => {
1423 key_context.add("menu");
1424 key_context.add("showing_completions")
1425 }
1426 Some(CodeContextMenu::CodeActions(_)) => {
1427 key_context.add("menu");
1428 key_context.add("showing_code_actions")
1429 }
1430 None => {}
1431 }
1432
1433 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1434 if !self.focus_handle(cx).contains_focused(cx)
1435 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
1436 {
1437 for addon in self.addons.values() {
1438 addon.extend_key_context(&mut key_context, cx)
1439 }
1440 }
1441
1442 if let Some(extension) = self
1443 .buffer
1444 .read(cx)
1445 .as_singleton()
1446 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1447 {
1448 key_context.set("extension", extension.to_string());
1449 }
1450
1451 if self.has_active_inline_completion() {
1452 key_context.add("copilot_suggestion");
1453 key_context.add("inline_completion");
1454 }
1455
1456 if !self
1457 .selections
1458 .disjoint
1459 .iter()
1460 .all(|selection| selection.start == selection.end)
1461 {
1462 key_context.add("selection");
1463 }
1464
1465 key_context
1466 }
1467
1468 pub fn new_file(
1469 workspace: &mut Workspace,
1470 _: &workspace::NewFile,
1471 cx: &mut ViewContext<Workspace>,
1472 ) {
1473 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1474 "Failed to create buffer",
1475 cx,
1476 |e, _| match e.error_code() {
1477 ErrorCode::RemoteUpgradeRequired => Some(format!(
1478 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1479 e.error_tag("required").unwrap_or("the latest version")
1480 )),
1481 _ => None,
1482 },
1483 );
1484 }
1485
1486 pub fn new_in_workspace(
1487 workspace: &mut Workspace,
1488 cx: &mut ViewContext<Workspace>,
1489 ) -> Task<Result<View<Editor>>> {
1490 let project = workspace.project().clone();
1491 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1492
1493 cx.spawn(|workspace, mut cx| async move {
1494 let buffer = create.await?;
1495 workspace.update(&mut cx, |workspace, cx| {
1496 let editor =
1497 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
1498 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
1499 editor
1500 })
1501 })
1502 }
1503
1504 fn new_file_vertical(
1505 workspace: &mut Workspace,
1506 _: &workspace::NewFileSplitVertical,
1507 cx: &mut ViewContext<Workspace>,
1508 ) {
1509 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
1510 }
1511
1512 fn new_file_horizontal(
1513 workspace: &mut Workspace,
1514 _: &workspace::NewFileSplitHorizontal,
1515 cx: &mut ViewContext<Workspace>,
1516 ) {
1517 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
1518 }
1519
1520 fn new_file_in_direction(
1521 workspace: &mut Workspace,
1522 direction: SplitDirection,
1523 cx: &mut ViewContext<Workspace>,
1524 ) {
1525 let project = workspace.project().clone();
1526 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1527
1528 cx.spawn(|workspace, mut cx| async move {
1529 let buffer = create.await?;
1530 workspace.update(&mut cx, move |workspace, cx| {
1531 workspace.split_item(
1532 direction,
1533 Box::new(
1534 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1535 ),
1536 cx,
1537 )
1538 })?;
1539 anyhow::Ok(())
1540 })
1541 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1542 ErrorCode::RemoteUpgradeRequired => Some(format!(
1543 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1544 e.error_tag("required").unwrap_or("the latest version")
1545 )),
1546 _ => None,
1547 });
1548 }
1549
1550 pub fn leader_peer_id(&self) -> Option<PeerId> {
1551 self.leader_peer_id
1552 }
1553
1554 pub fn buffer(&self) -> &Model<MultiBuffer> {
1555 &self.buffer
1556 }
1557
1558 pub fn workspace(&self) -> Option<View<Workspace>> {
1559 self.workspace.as_ref()?.0.upgrade()
1560 }
1561
1562 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1563 self.buffer().read(cx).title(cx)
1564 }
1565
1566 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1567 let git_blame_gutter_max_author_length = self
1568 .render_git_blame_gutter(cx)
1569 .then(|| {
1570 if let Some(blame) = self.blame.as_ref() {
1571 let max_author_length =
1572 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1573 Some(max_author_length)
1574 } else {
1575 None
1576 }
1577 })
1578 .flatten();
1579
1580 EditorSnapshot {
1581 mode: self.mode,
1582 show_gutter: self.show_gutter,
1583 show_line_numbers: self.show_line_numbers,
1584 show_git_diff_gutter: self.show_git_diff_gutter,
1585 show_code_actions: self.show_code_actions,
1586 show_runnables: self.show_runnables,
1587 git_blame_gutter_max_author_length,
1588 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1589 scroll_anchor: self.scroll_manager.anchor(),
1590 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1591 placeholder_text: self.placeholder_text.clone(),
1592 diff_map: self.diff_map.snapshot(),
1593 is_focused: self.focus_handle.is_focused(cx),
1594 current_line_highlight: self
1595 .current_line_highlight
1596 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1597 gutter_hovered: self.gutter_hovered,
1598 }
1599 }
1600
1601 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1602 self.buffer.read(cx).language_at(point, cx)
1603 }
1604
1605 pub fn file_at<T: ToOffset>(
1606 &self,
1607 point: T,
1608 cx: &AppContext,
1609 ) -> Option<Arc<dyn language::File>> {
1610 self.buffer.read(cx).read(cx).file_at(point).cloned()
1611 }
1612
1613 pub fn active_excerpt(
1614 &self,
1615 cx: &AppContext,
1616 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1617 self.buffer
1618 .read(cx)
1619 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1620 }
1621
1622 pub fn mode(&self) -> EditorMode {
1623 self.mode
1624 }
1625
1626 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1627 self.collaboration_hub.as_deref()
1628 }
1629
1630 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1631 self.collaboration_hub = Some(hub);
1632 }
1633
1634 pub fn set_custom_context_menu(
1635 &mut self,
1636 f: impl 'static
1637 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1638 ) {
1639 self.custom_context_menu = Some(Box::new(f))
1640 }
1641
1642 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1643 self.completion_provider = provider;
1644 }
1645
1646 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1647 self.semantics_provider.clone()
1648 }
1649
1650 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1651 self.semantics_provider = provider;
1652 }
1653
1654 pub fn set_inline_completion_provider<T>(
1655 &mut self,
1656 provider: Option<Model<T>>,
1657 cx: &mut ViewContext<Self>,
1658 ) where
1659 T: InlineCompletionProvider,
1660 {
1661 self.inline_completion_provider =
1662 provider.map(|provider| RegisteredInlineCompletionProvider {
1663 _subscription: cx.observe(&provider, |this, _, cx| {
1664 if this.focus_handle.is_focused(cx) {
1665 this.update_visible_inline_completion(cx);
1666 }
1667 }),
1668 provider: Arc::new(provider),
1669 });
1670 self.refresh_inline_completion(false, false, cx);
1671 }
1672
1673 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
1674 self.placeholder_text.as_deref()
1675 }
1676
1677 pub fn set_placeholder_text(
1678 &mut self,
1679 placeholder_text: impl Into<Arc<str>>,
1680 cx: &mut ViewContext<Self>,
1681 ) {
1682 let placeholder_text = Some(placeholder_text.into());
1683 if self.placeholder_text != placeholder_text {
1684 self.placeholder_text = placeholder_text;
1685 cx.notify();
1686 }
1687 }
1688
1689 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1690 self.cursor_shape = cursor_shape;
1691
1692 // Disrupt blink for immediate user feedback that the cursor shape has changed
1693 self.blink_manager.update(cx, BlinkManager::show_cursor);
1694
1695 cx.notify();
1696 }
1697
1698 pub fn set_current_line_highlight(
1699 &mut self,
1700 current_line_highlight: Option<CurrentLineHighlight>,
1701 ) {
1702 self.current_line_highlight = current_line_highlight;
1703 }
1704
1705 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1706 self.collapse_matches = collapse_matches;
1707 }
1708
1709 pub fn register_buffers_with_language_servers(&mut self, cx: &mut ViewContext<Self>) {
1710 let buffers = self.buffer.read(cx).all_buffers();
1711 let Some(lsp_store) = self.lsp_store(cx) else {
1712 return;
1713 };
1714 lsp_store.update(cx, |lsp_store, cx| {
1715 for buffer in buffers {
1716 self.registered_buffers
1717 .entry(buffer.read(cx).remote_id())
1718 .or_insert_with(|| {
1719 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1720 });
1721 }
1722 })
1723 }
1724
1725 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1726 if self.collapse_matches {
1727 return range.start..range.start;
1728 }
1729 range.clone()
1730 }
1731
1732 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1733 if self.display_map.read(cx).clip_at_line_ends != clip {
1734 self.display_map
1735 .update(cx, |map, _| map.clip_at_line_ends = clip);
1736 }
1737 }
1738
1739 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1740 self.input_enabled = input_enabled;
1741 }
1742
1743 pub fn set_inline_completions_enabled(&mut self, enabled: bool, cx: &mut ViewContext<Self>) {
1744 self.enable_inline_completions = enabled;
1745 if !self.enable_inline_completions {
1746 self.take_active_inline_completion(cx);
1747 cx.notify();
1748 }
1749 }
1750
1751 pub fn set_autoindent(&mut self, autoindent: bool) {
1752 if autoindent {
1753 self.autoindent_mode = Some(AutoindentMode::EachLine);
1754 } else {
1755 self.autoindent_mode = None;
1756 }
1757 }
1758
1759 pub fn read_only(&self, cx: &AppContext) -> bool {
1760 self.read_only || self.buffer.read(cx).read_only()
1761 }
1762
1763 pub fn set_read_only(&mut self, read_only: bool) {
1764 self.read_only = read_only;
1765 }
1766
1767 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1768 self.use_autoclose = autoclose;
1769 }
1770
1771 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1772 self.use_auto_surround = auto_surround;
1773 }
1774
1775 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1776 self.auto_replace_emoji_shortcode = auto_replace;
1777 }
1778
1779 pub fn toggle_inline_completions(
1780 &mut self,
1781 _: &ToggleInlineCompletions,
1782 cx: &mut ViewContext<Self>,
1783 ) {
1784 if self.show_inline_completions_override.is_some() {
1785 self.set_show_inline_completions(None, cx);
1786 } else {
1787 let cursor = self.selections.newest_anchor().head();
1788 if let Some((buffer, cursor_buffer_position)) =
1789 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1790 {
1791 let show_inline_completions =
1792 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
1793 self.set_show_inline_completions(Some(show_inline_completions), cx);
1794 }
1795 }
1796 }
1797
1798 pub fn set_show_inline_completions(
1799 &mut self,
1800 show_inline_completions: Option<bool>,
1801 cx: &mut ViewContext<Self>,
1802 ) {
1803 self.show_inline_completions_override = show_inline_completions;
1804 self.refresh_inline_completion(false, true, cx);
1805 }
1806
1807 pub fn inline_completions_enabled(&self, cx: &AppContext) -> bool {
1808 let cursor = self.selections.newest_anchor().head();
1809 if let Some((buffer, buffer_position)) =
1810 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1811 {
1812 self.should_show_inline_completions(&buffer, buffer_position, cx)
1813 } else {
1814 false
1815 }
1816 }
1817
1818 fn should_show_inline_completions(
1819 &self,
1820 buffer: &Model<Buffer>,
1821 buffer_position: language::Anchor,
1822 cx: &AppContext,
1823 ) -> bool {
1824 if !self.snippet_stack.is_empty() {
1825 return false;
1826 }
1827
1828 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1829 return false;
1830 }
1831
1832 if let Some(provider) = self.inline_completion_provider() {
1833 if let Some(show_inline_completions) = self.show_inline_completions_override {
1834 show_inline_completions
1835 } else {
1836 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1837 }
1838 } else {
1839 false
1840 }
1841 }
1842
1843 fn inline_completions_disabled_in_scope(
1844 &self,
1845 buffer: &Model<Buffer>,
1846 buffer_position: language::Anchor,
1847 cx: &AppContext,
1848 ) -> bool {
1849 let snapshot = buffer.read(cx).snapshot();
1850 let settings = snapshot.settings_at(buffer_position, cx);
1851
1852 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1853 return false;
1854 };
1855
1856 scope.override_name().map_or(false, |scope_name| {
1857 settings
1858 .inline_completions_disabled_in
1859 .iter()
1860 .any(|s| s == scope_name)
1861 })
1862 }
1863
1864 pub fn set_use_modal_editing(&mut self, to: bool) {
1865 self.use_modal_editing = to;
1866 }
1867
1868 pub fn use_modal_editing(&self) -> bool {
1869 self.use_modal_editing
1870 }
1871
1872 fn selections_did_change(
1873 &mut self,
1874 local: bool,
1875 old_cursor_position: &Anchor,
1876 show_completions: bool,
1877 cx: &mut ViewContext<Self>,
1878 ) {
1879 cx.invalidate_character_coordinates();
1880
1881 // Copy selections to primary selection buffer
1882 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1883 if local {
1884 let selections = self.selections.all::<usize>(cx);
1885 let buffer_handle = self.buffer.read(cx).read(cx);
1886
1887 let mut text = String::new();
1888 for (index, selection) in selections.iter().enumerate() {
1889 let text_for_selection = buffer_handle
1890 .text_for_range(selection.start..selection.end)
1891 .collect::<String>();
1892
1893 text.push_str(&text_for_selection);
1894 if index != selections.len() - 1 {
1895 text.push('\n');
1896 }
1897 }
1898
1899 if !text.is_empty() {
1900 cx.write_to_primary(ClipboardItem::new_string(text));
1901 }
1902 }
1903
1904 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1905 self.buffer.update(cx, |buffer, cx| {
1906 buffer.set_active_selections(
1907 &self.selections.disjoint_anchors(),
1908 self.selections.line_mode,
1909 self.cursor_shape,
1910 cx,
1911 )
1912 });
1913 }
1914 let display_map = self
1915 .display_map
1916 .update(cx, |display_map, cx| display_map.snapshot(cx));
1917 let buffer = &display_map.buffer_snapshot;
1918 self.add_selections_state = None;
1919 self.select_next_state = None;
1920 self.select_prev_state = None;
1921 self.select_larger_syntax_node_stack.clear();
1922 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1923 self.snippet_stack
1924 .invalidate(&self.selections.disjoint_anchors(), buffer);
1925 self.take_rename(false, cx);
1926
1927 let new_cursor_position = self.selections.newest_anchor().head();
1928
1929 self.push_to_nav_history(
1930 *old_cursor_position,
1931 Some(new_cursor_position.to_point(buffer)),
1932 cx,
1933 );
1934
1935 if local {
1936 let new_cursor_position = self.selections.newest_anchor().head();
1937 let mut context_menu = self.context_menu.borrow_mut();
1938 let completion_menu = match context_menu.as_ref() {
1939 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1940 _ => {
1941 *context_menu = None;
1942 None
1943 }
1944 };
1945
1946 if let Some(completion_menu) = completion_menu {
1947 let cursor_position = new_cursor_position.to_offset(buffer);
1948 let (word_range, kind) =
1949 buffer.surrounding_word(completion_menu.initial_position, true);
1950 if kind == Some(CharKind::Word)
1951 && word_range.to_inclusive().contains(&cursor_position)
1952 {
1953 let mut completion_menu = completion_menu.clone();
1954 drop(context_menu);
1955
1956 let query = Self::completion_query(buffer, cursor_position);
1957 cx.spawn(move |this, mut cx| async move {
1958 completion_menu
1959 .filter(query.as_deref(), cx.background_executor().clone())
1960 .await;
1961
1962 this.update(&mut cx, |this, cx| {
1963 let mut context_menu = this.context_menu.borrow_mut();
1964 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1965 else {
1966 return;
1967 };
1968
1969 if menu.id > completion_menu.id {
1970 return;
1971 }
1972
1973 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1974 drop(context_menu);
1975 cx.notify();
1976 })
1977 })
1978 .detach();
1979
1980 if show_completions {
1981 self.show_completions(&ShowCompletions { trigger: None }, cx);
1982 }
1983 } else {
1984 drop(context_menu);
1985 self.hide_context_menu(cx);
1986 }
1987 } else {
1988 drop(context_menu);
1989 }
1990
1991 hide_hover(self, cx);
1992
1993 if old_cursor_position.to_display_point(&display_map).row()
1994 != new_cursor_position.to_display_point(&display_map).row()
1995 {
1996 self.available_code_actions.take();
1997 }
1998 self.refresh_code_actions(cx);
1999 self.refresh_document_highlights(cx);
2000 refresh_matching_bracket_highlights(self, cx);
2001 self.update_visible_inline_completion(cx);
2002 linked_editing_ranges::refresh_linked_ranges(self, cx);
2003 if self.git_blame_inline_enabled {
2004 self.start_inline_blame_timer(cx);
2005 }
2006 }
2007
2008 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2009 cx.emit(EditorEvent::SelectionsChanged { local });
2010
2011 if self.selections.disjoint_anchors().len() == 1 {
2012 cx.emit(SearchEvent::ActiveMatchChanged)
2013 }
2014 cx.notify();
2015 }
2016
2017 pub fn change_selections<R>(
2018 &mut self,
2019 autoscroll: Option<Autoscroll>,
2020 cx: &mut ViewContext<Self>,
2021 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2022 ) -> R {
2023 self.change_selections_inner(autoscroll, true, cx, change)
2024 }
2025
2026 pub fn change_selections_inner<R>(
2027 &mut self,
2028 autoscroll: Option<Autoscroll>,
2029 request_completions: bool,
2030 cx: &mut ViewContext<Self>,
2031 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2032 ) -> R {
2033 let old_cursor_position = self.selections.newest_anchor().head();
2034 self.push_to_selection_history();
2035
2036 let (changed, result) = self.selections.change_with(cx, change);
2037
2038 if changed {
2039 if let Some(autoscroll) = autoscroll {
2040 self.request_autoscroll(autoscroll, cx);
2041 }
2042 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2043
2044 if self.should_open_signature_help_automatically(
2045 &old_cursor_position,
2046 self.signature_help_state.backspace_pressed(),
2047 cx,
2048 ) {
2049 self.show_signature_help(&ShowSignatureHelp, cx);
2050 }
2051 self.signature_help_state.set_backspace_pressed(false);
2052 }
2053
2054 result
2055 }
2056
2057 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2058 where
2059 I: IntoIterator<Item = (Range<S>, T)>,
2060 S: ToOffset,
2061 T: Into<Arc<str>>,
2062 {
2063 if self.read_only(cx) {
2064 return;
2065 }
2066
2067 self.buffer
2068 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2069 }
2070
2071 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2072 where
2073 I: IntoIterator<Item = (Range<S>, T)>,
2074 S: ToOffset,
2075 T: Into<Arc<str>>,
2076 {
2077 if self.read_only(cx) {
2078 return;
2079 }
2080
2081 self.buffer.update(cx, |buffer, cx| {
2082 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2083 });
2084 }
2085
2086 pub fn edit_with_block_indent<I, S, T>(
2087 &mut self,
2088 edits: I,
2089 original_indent_columns: Vec<u32>,
2090 cx: &mut ViewContext<Self>,
2091 ) where
2092 I: IntoIterator<Item = (Range<S>, T)>,
2093 S: ToOffset,
2094 T: Into<Arc<str>>,
2095 {
2096 if self.read_only(cx) {
2097 return;
2098 }
2099
2100 self.buffer.update(cx, |buffer, cx| {
2101 buffer.edit(
2102 edits,
2103 Some(AutoindentMode::Block {
2104 original_indent_columns,
2105 }),
2106 cx,
2107 )
2108 });
2109 }
2110
2111 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2112 self.hide_context_menu(cx);
2113
2114 match phase {
2115 SelectPhase::Begin {
2116 position,
2117 add,
2118 click_count,
2119 } => self.begin_selection(position, add, click_count, cx),
2120 SelectPhase::BeginColumnar {
2121 position,
2122 goal_column,
2123 reset,
2124 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2125 SelectPhase::Extend {
2126 position,
2127 click_count,
2128 } => self.extend_selection(position, click_count, cx),
2129 SelectPhase::Update {
2130 position,
2131 goal_column,
2132 scroll_delta,
2133 } => self.update_selection(position, goal_column, scroll_delta, cx),
2134 SelectPhase::End => self.end_selection(cx),
2135 }
2136 }
2137
2138 fn extend_selection(
2139 &mut self,
2140 position: DisplayPoint,
2141 click_count: usize,
2142 cx: &mut ViewContext<Self>,
2143 ) {
2144 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2145 let tail = self.selections.newest::<usize>(cx).tail();
2146 self.begin_selection(position, false, click_count, cx);
2147
2148 let position = position.to_offset(&display_map, Bias::Left);
2149 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2150
2151 let mut pending_selection = self
2152 .selections
2153 .pending_anchor()
2154 .expect("extend_selection not called with pending selection");
2155 if position >= tail {
2156 pending_selection.start = tail_anchor;
2157 } else {
2158 pending_selection.end = tail_anchor;
2159 pending_selection.reversed = true;
2160 }
2161
2162 let mut pending_mode = self.selections.pending_mode().unwrap();
2163 match &mut pending_mode {
2164 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2165 _ => {}
2166 }
2167
2168 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2169 s.set_pending(pending_selection, pending_mode)
2170 });
2171 }
2172
2173 fn begin_selection(
2174 &mut self,
2175 position: DisplayPoint,
2176 add: bool,
2177 click_count: usize,
2178 cx: &mut ViewContext<Self>,
2179 ) {
2180 if !self.focus_handle.is_focused(cx) {
2181 self.last_focused_descendant = None;
2182 cx.focus(&self.focus_handle);
2183 }
2184
2185 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2186 let buffer = &display_map.buffer_snapshot;
2187 let newest_selection = self.selections.newest_anchor().clone();
2188 let position = display_map.clip_point(position, Bias::Left);
2189
2190 let start;
2191 let end;
2192 let mode;
2193 let mut auto_scroll;
2194 match click_count {
2195 1 => {
2196 start = buffer.anchor_before(position.to_point(&display_map));
2197 end = start;
2198 mode = SelectMode::Character;
2199 auto_scroll = true;
2200 }
2201 2 => {
2202 let range = movement::surrounding_word(&display_map, position);
2203 start = buffer.anchor_before(range.start.to_point(&display_map));
2204 end = buffer.anchor_before(range.end.to_point(&display_map));
2205 mode = SelectMode::Word(start..end);
2206 auto_scroll = true;
2207 }
2208 3 => {
2209 let position = display_map
2210 .clip_point(position, Bias::Left)
2211 .to_point(&display_map);
2212 let line_start = display_map.prev_line_boundary(position).0;
2213 let next_line_start = buffer.clip_point(
2214 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2215 Bias::Left,
2216 );
2217 start = buffer.anchor_before(line_start);
2218 end = buffer.anchor_before(next_line_start);
2219 mode = SelectMode::Line(start..end);
2220 auto_scroll = true;
2221 }
2222 _ => {
2223 start = buffer.anchor_before(0);
2224 end = buffer.anchor_before(buffer.len());
2225 mode = SelectMode::All;
2226 auto_scroll = false;
2227 }
2228 }
2229 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2230
2231 let point_to_delete: Option<usize> = {
2232 let selected_points: Vec<Selection<Point>> =
2233 self.selections.disjoint_in_range(start..end, cx);
2234
2235 if !add || click_count > 1 {
2236 None
2237 } else if !selected_points.is_empty() {
2238 Some(selected_points[0].id)
2239 } else {
2240 let clicked_point_already_selected =
2241 self.selections.disjoint.iter().find(|selection| {
2242 selection.start.to_point(buffer) == start.to_point(buffer)
2243 || selection.end.to_point(buffer) == end.to_point(buffer)
2244 });
2245
2246 clicked_point_already_selected.map(|selection| selection.id)
2247 }
2248 };
2249
2250 let selections_count = self.selections.count();
2251
2252 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2253 if let Some(point_to_delete) = point_to_delete {
2254 s.delete(point_to_delete);
2255
2256 if selections_count == 1 {
2257 s.set_pending_anchor_range(start..end, mode);
2258 }
2259 } else {
2260 if !add {
2261 s.clear_disjoint();
2262 } else if click_count > 1 {
2263 s.delete(newest_selection.id)
2264 }
2265
2266 s.set_pending_anchor_range(start..end, mode);
2267 }
2268 });
2269 }
2270
2271 fn begin_columnar_selection(
2272 &mut self,
2273 position: DisplayPoint,
2274 goal_column: u32,
2275 reset: bool,
2276 cx: &mut ViewContext<Self>,
2277 ) {
2278 if !self.focus_handle.is_focused(cx) {
2279 self.last_focused_descendant = None;
2280 cx.focus(&self.focus_handle);
2281 }
2282
2283 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2284
2285 if reset {
2286 let pointer_position = display_map
2287 .buffer_snapshot
2288 .anchor_before(position.to_point(&display_map));
2289
2290 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2291 s.clear_disjoint();
2292 s.set_pending_anchor_range(
2293 pointer_position..pointer_position,
2294 SelectMode::Character,
2295 );
2296 });
2297 }
2298
2299 let tail = self.selections.newest::<Point>(cx).tail();
2300 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2301
2302 if !reset {
2303 self.select_columns(
2304 tail.to_display_point(&display_map),
2305 position,
2306 goal_column,
2307 &display_map,
2308 cx,
2309 );
2310 }
2311 }
2312
2313 fn update_selection(
2314 &mut self,
2315 position: DisplayPoint,
2316 goal_column: u32,
2317 scroll_delta: gpui::Point<f32>,
2318 cx: &mut ViewContext<Self>,
2319 ) {
2320 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2321
2322 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2323 let tail = tail.to_display_point(&display_map);
2324 self.select_columns(tail, position, goal_column, &display_map, cx);
2325 } else if let Some(mut pending) = self.selections.pending_anchor() {
2326 let buffer = self.buffer.read(cx).snapshot(cx);
2327 let head;
2328 let tail;
2329 let mode = self.selections.pending_mode().unwrap();
2330 match &mode {
2331 SelectMode::Character => {
2332 head = position.to_point(&display_map);
2333 tail = pending.tail().to_point(&buffer);
2334 }
2335 SelectMode::Word(original_range) => {
2336 let original_display_range = original_range.start.to_display_point(&display_map)
2337 ..original_range.end.to_display_point(&display_map);
2338 let original_buffer_range = original_display_range.start.to_point(&display_map)
2339 ..original_display_range.end.to_point(&display_map);
2340 if movement::is_inside_word(&display_map, position)
2341 || original_display_range.contains(&position)
2342 {
2343 let word_range = movement::surrounding_word(&display_map, position);
2344 if word_range.start < original_display_range.start {
2345 head = word_range.start.to_point(&display_map);
2346 } else {
2347 head = word_range.end.to_point(&display_map);
2348 }
2349 } else {
2350 head = position.to_point(&display_map);
2351 }
2352
2353 if head <= original_buffer_range.start {
2354 tail = original_buffer_range.end;
2355 } else {
2356 tail = original_buffer_range.start;
2357 }
2358 }
2359 SelectMode::Line(original_range) => {
2360 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2361
2362 let position = display_map
2363 .clip_point(position, Bias::Left)
2364 .to_point(&display_map);
2365 let line_start = display_map.prev_line_boundary(position).0;
2366 let next_line_start = buffer.clip_point(
2367 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2368 Bias::Left,
2369 );
2370
2371 if line_start < original_range.start {
2372 head = line_start
2373 } else {
2374 head = next_line_start
2375 }
2376
2377 if head <= original_range.start {
2378 tail = original_range.end;
2379 } else {
2380 tail = original_range.start;
2381 }
2382 }
2383 SelectMode::All => {
2384 return;
2385 }
2386 };
2387
2388 if head < tail {
2389 pending.start = buffer.anchor_before(head);
2390 pending.end = buffer.anchor_before(tail);
2391 pending.reversed = true;
2392 } else {
2393 pending.start = buffer.anchor_before(tail);
2394 pending.end = buffer.anchor_before(head);
2395 pending.reversed = false;
2396 }
2397
2398 self.change_selections(None, cx, |s| {
2399 s.set_pending(pending, mode);
2400 });
2401 } else {
2402 log::error!("update_selection dispatched with no pending selection");
2403 return;
2404 }
2405
2406 self.apply_scroll_delta(scroll_delta, cx);
2407 cx.notify();
2408 }
2409
2410 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2411 self.columnar_selection_tail.take();
2412 if self.selections.pending_anchor().is_some() {
2413 let selections = self.selections.all::<usize>(cx);
2414 self.change_selections(None, cx, |s| {
2415 s.select(selections);
2416 s.clear_pending();
2417 });
2418 }
2419 }
2420
2421 fn select_columns(
2422 &mut self,
2423 tail: DisplayPoint,
2424 head: DisplayPoint,
2425 goal_column: u32,
2426 display_map: &DisplaySnapshot,
2427 cx: &mut ViewContext<Self>,
2428 ) {
2429 let start_row = cmp::min(tail.row(), head.row());
2430 let end_row = cmp::max(tail.row(), head.row());
2431 let start_column = cmp::min(tail.column(), goal_column);
2432 let end_column = cmp::max(tail.column(), goal_column);
2433 let reversed = start_column < tail.column();
2434
2435 let selection_ranges = (start_row.0..=end_row.0)
2436 .map(DisplayRow)
2437 .filter_map(|row| {
2438 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2439 let start = display_map
2440 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2441 .to_point(display_map);
2442 let end = display_map
2443 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2444 .to_point(display_map);
2445 if reversed {
2446 Some(end..start)
2447 } else {
2448 Some(start..end)
2449 }
2450 } else {
2451 None
2452 }
2453 })
2454 .collect::<Vec<_>>();
2455
2456 self.change_selections(None, cx, |s| {
2457 s.select_ranges(selection_ranges);
2458 });
2459 cx.notify();
2460 }
2461
2462 pub fn has_pending_nonempty_selection(&self) -> bool {
2463 let pending_nonempty_selection = match self.selections.pending_anchor() {
2464 Some(Selection { start, end, .. }) => start != end,
2465 None => false,
2466 };
2467
2468 pending_nonempty_selection
2469 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2470 }
2471
2472 pub fn has_pending_selection(&self) -> bool {
2473 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2474 }
2475
2476 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2477 if self.clear_expanded_diff_hunks(cx) {
2478 cx.notify();
2479 return;
2480 }
2481 if self.dismiss_menus_and_popups(true, cx) {
2482 return;
2483 }
2484
2485 if self.mode == EditorMode::Full
2486 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2487 {
2488 return;
2489 }
2490
2491 cx.propagate();
2492 }
2493
2494 pub fn dismiss_menus_and_popups(
2495 &mut self,
2496 should_report_inline_completion_event: bool,
2497 cx: &mut ViewContext<Self>,
2498 ) -> bool {
2499 if self.take_rename(false, cx).is_some() {
2500 return true;
2501 }
2502
2503 if hide_hover(self, cx) {
2504 return true;
2505 }
2506
2507 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2508 return true;
2509 }
2510
2511 if self.hide_context_menu(cx).is_some() {
2512 if self.show_inline_completions_in_menu(cx) && self.has_active_inline_completion() {
2513 self.update_visible_inline_completion(cx);
2514 }
2515 return true;
2516 }
2517
2518 if self.mouse_context_menu.take().is_some() {
2519 return true;
2520 }
2521
2522 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2523 return true;
2524 }
2525
2526 if self.snippet_stack.pop().is_some() {
2527 return true;
2528 }
2529
2530 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2531 self.dismiss_diagnostics(cx);
2532 return true;
2533 }
2534
2535 false
2536 }
2537
2538 fn linked_editing_ranges_for(
2539 &self,
2540 selection: Range<text::Anchor>,
2541 cx: &AppContext,
2542 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2543 if self.linked_edit_ranges.is_empty() {
2544 return None;
2545 }
2546 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2547 selection.end.buffer_id.and_then(|end_buffer_id| {
2548 if selection.start.buffer_id != Some(end_buffer_id) {
2549 return None;
2550 }
2551 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2552 let snapshot = buffer.read(cx).snapshot();
2553 self.linked_edit_ranges
2554 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2555 .map(|ranges| (ranges, snapshot, buffer))
2556 })?;
2557 use text::ToOffset as TO;
2558 // find offset from the start of current range to current cursor position
2559 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2560
2561 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2562 let start_difference = start_offset - start_byte_offset;
2563 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2564 let end_difference = end_offset - start_byte_offset;
2565 // Current range has associated linked ranges.
2566 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2567 for range in linked_ranges.iter() {
2568 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2569 let end_offset = start_offset + end_difference;
2570 let start_offset = start_offset + start_difference;
2571 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2572 continue;
2573 }
2574 if self.selections.disjoint_anchor_ranges().any(|s| {
2575 if s.start.buffer_id != selection.start.buffer_id
2576 || s.end.buffer_id != selection.end.buffer_id
2577 {
2578 return false;
2579 }
2580 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2581 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2582 }) {
2583 continue;
2584 }
2585 let start = buffer_snapshot.anchor_after(start_offset);
2586 let end = buffer_snapshot.anchor_after(end_offset);
2587 linked_edits
2588 .entry(buffer.clone())
2589 .or_default()
2590 .push(start..end);
2591 }
2592 Some(linked_edits)
2593 }
2594
2595 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2596 let text: Arc<str> = text.into();
2597
2598 if self.read_only(cx) {
2599 return;
2600 }
2601
2602 let selections = self.selections.all_adjusted(cx);
2603 let mut bracket_inserted = false;
2604 let mut edits = Vec::new();
2605 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2606 let mut new_selections = Vec::with_capacity(selections.len());
2607 let mut new_autoclose_regions = Vec::new();
2608 let snapshot = self.buffer.read(cx).read(cx);
2609
2610 for (selection, autoclose_region) in
2611 self.selections_with_autoclose_regions(selections, &snapshot)
2612 {
2613 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2614 // Determine if the inserted text matches the opening or closing
2615 // bracket of any of this language's bracket pairs.
2616 let mut bracket_pair = None;
2617 let mut is_bracket_pair_start = false;
2618 let mut is_bracket_pair_end = false;
2619 if !text.is_empty() {
2620 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2621 // and they are removing the character that triggered IME popup.
2622 for (pair, enabled) in scope.brackets() {
2623 if !pair.close && !pair.surround {
2624 continue;
2625 }
2626
2627 if enabled && pair.start.ends_with(text.as_ref()) {
2628 let prefix_len = pair.start.len() - text.len();
2629 let preceding_text_matches_prefix = prefix_len == 0
2630 || (selection.start.column >= (prefix_len as u32)
2631 && snapshot.contains_str_at(
2632 Point::new(
2633 selection.start.row,
2634 selection.start.column - (prefix_len as u32),
2635 ),
2636 &pair.start[..prefix_len],
2637 ));
2638 if preceding_text_matches_prefix {
2639 bracket_pair = Some(pair.clone());
2640 is_bracket_pair_start = true;
2641 break;
2642 }
2643 }
2644 if pair.end.as_str() == text.as_ref() {
2645 bracket_pair = Some(pair.clone());
2646 is_bracket_pair_end = true;
2647 break;
2648 }
2649 }
2650 }
2651
2652 if let Some(bracket_pair) = bracket_pair {
2653 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2654 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2655 let auto_surround =
2656 self.use_auto_surround && snapshot_settings.use_auto_surround;
2657 if selection.is_empty() {
2658 if is_bracket_pair_start {
2659 // If the inserted text is a suffix of an opening bracket and the
2660 // selection is preceded by the rest of the opening bracket, then
2661 // insert the closing bracket.
2662 let following_text_allows_autoclose = snapshot
2663 .chars_at(selection.start)
2664 .next()
2665 .map_or(true, |c| scope.should_autoclose_before(c));
2666
2667 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2668 && bracket_pair.start.len() == 1
2669 {
2670 let target = bracket_pair.start.chars().next().unwrap();
2671 let current_line_count = snapshot
2672 .reversed_chars_at(selection.start)
2673 .take_while(|&c| c != '\n')
2674 .filter(|&c| c == target)
2675 .count();
2676 current_line_count % 2 == 1
2677 } else {
2678 false
2679 };
2680
2681 if autoclose
2682 && bracket_pair.close
2683 && following_text_allows_autoclose
2684 && !is_closing_quote
2685 {
2686 let anchor = snapshot.anchor_before(selection.end);
2687 new_selections.push((selection.map(|_| anchor), text.len()));
2688 new_autoclose_regions.push((
2689 anchor,
2690 text.len(),
2691 selection.id,
2692 bracket_pair.clone(),
2693 ));
2694 edits.push((
2695 selection.range(),
2696 format!("{}{}", text, bracket_pair.end).into(),
2697 ));
2698 bracket_inserted = true;
2699 continue;
2700 }
2701 }
2702
2703 if let Some(region) = autoclose_region {
2704 // If the selection is followed by an auto-inserted closing bracket,
2705 // then don't insert that closing bracket again; just move the selection
2706 // past the closing bracket.
2707 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2708 && text.as_ref() == region.pair.end.as_str();
2709 if should_skip {
2710 let anchor = snapshot.anchor_after(selection.end);
2711 new_selections
2712 .push((selection.map(|_| anchor), region.pair.end.len()));
2713 continue;
2714 }
2715 }
2716
2717 let always_treat_brackets_as_autoclosed = snapshot
2718 .settings_at(selection.start, cx)
2719 .always_treat_brackets_as_autoclosed;
2720 if always_treat_brackets_as_autoclosed
2721 && is_bracket_pair_end
2722 && snapshot.contains_str_at(selection.end, text.as_ref())
2723 {
2724 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2725 // and the inserted text is a closing bracket and the selection is followed
2726 // by the closing bracket then move the selection past the closing bracket.
2727 let anchor = snapshot.anchor_after(selection.end);
2728 new_selections.push((selection.map(|_| anchor), text.len()));
2729 continue;
2730 }
2731 }
2732 // If an opening bracket is 1 character long and is typed while
2733 // text is selected, then surround that text with the bracket pair.
2734 else if auto_surround
2735 && bracket_pair.surround
2736 && is_bracket_pair_start
2737 && bracket_pair.start.chars().count() == 1
2738 {
2739 edits.push((selection.start..selection.start, text.clone()));
2740 edits.push((
2741 selection.end..selection.end,
2742 bracket_pair.end.as_str().into(),
2743 ));
2744 bracket_inserted = true;
2745 new_selections.push((
2746 Selection {
2747 id: selection.id,
2748 start: snapshot.anchor_after(selection.start),
2749 end: snapshot.anchor_before(selection.end),
2750 reversed: selection.reversed,
2751 goal: selection.goal,
2752 },
2753 0,
2754 ));
2755 continue;
2756 }
2757 }
2758 }
2759
2760 if self.auto_replace_emoji_shortcode
2761 && selection.is_empty()
2762 && text.as_ref().ends_with(':')
2763 {
2764 if let Some(possible_emoji_short_code) =
2765 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2766 {
2767 if !possible_emoji_short_code.is_empty() {
2768 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2769 let emoji_shortcode_start = Point::new(
2770 selection.start.row,
2771 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2772 );
2773
2774 // Remove shortcode from buffer
2775 edits.push((
2776 emoji_shortcode_start..selection.start,
2777 "".to_string().into(),
2778 ));
2779 new_selections.push((
2780 Selection {
2781 id: selection.id,
2782 start: snapshot.anchor_after(emoji_shortcode_start),
2783 end: snapshot.anchor_before(selection.start),
2784 reversed: selection.reversed,
2785 goal: selection.goal,
2786 },
2787 0,
2788 ));
2789
2790 // Insert emoji
2791 let selection_start_anchor = snapshot.anchor_after(selection.start);
2792 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2793 edits.push((selection.start..selection.end, emoji.to_string().into()));
2794
2795 continue;
2796 }
2797 }
2798 }
2799 }
2800
2801 // If not handling any auto-close operation, then just replace the selected
2802 // text with the given input and move the selection to the end of the
2803 // newly inserted text.
2804 let anchor = snapshot.anchor_after(selection.end);
2805 if !self.linked_edit_ranges.is_empty() {
2806 let start_anchor = snapshot.anchor_before(selection.start);
2807
2808 let is_word_char = text.chars().next().map_or(true, |char| {
2809 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2810 classifier.is_word(char)
2811 });
2812
2813 if is_word_char {
2814 if let Some(ranges) = self
2815 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2816 {
2817 for (buffer, edits) in ranges {
2818 linked_edits
2819 .entry(buffer.clone())
2820 .or_default()
2821 .extend(edits.into_iter().map(|range| (range, text.clone())));
2822 }
2823 }
2824 }
2825 }
2826
2827 new_selections.push((selection.map(|_| anchor), 0));
2828 edits.push((selection.start..selection.end, text.clone()));
2829 }
2830
2831 drop(snapshot);
2832
2833 self.transact(cx, |this, cx| {
2834 this.buffer.update(cx, |buffer, cx| {
2835 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2836 });
2837 for (buffer, edits) in linked_edits {
2838 buffer.update(cx, |buffer, cx| {
2839 let snapshot = buffer.snapshot();
2840 let edits = edits
2841 .into_iter()
2842 .map(|(range, text)| {
2843 use text::ToPoint as TP;
2844 let end_point = TP::to_point(&range.end, &snapshot);
2845 let start_point = TP::to_point(&range.start, &snapshot);
2846 (start_point..end_point, text)
2847 })
2848 .sorted_by_key(|(range, _)| range.start)
2849 .collect::<Vec<_>>();
2850 buffer.edit(edits, None, cx);
2851 })
2852 }
2853 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2854 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2855 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2856 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2857 .zip(new_selection_deltas)
2858 .map(|(selection, delta)| Selection {
2859 id: selection.id,
2860 start: selection.start + delta,
2861 end: selection.end + delta,
2862 reversed: selection.reversed,
2863 goal: SelectionGoal::None,
2864 })
2865 .collect::<Vec<_>>();
2866
2867 let mut i = 0;
2868 for (position, delta, selection_id, pair) in new_autoclose_regions {
2869 let position = position.to_offset(&map.buffer_snapshot) + delta;
2870 let start = map.buffer_snapshot.anchor_before(position);
2871 let end = map.buffer_snapshot.anchor_after(position);
2872 while let Some(existing_state) = this.autoclose_regions.get(i) {
2873 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2874 Ordering::Less => i += 1,
2875 Ordering::Greater => break,
2876 Ordering::Equal => {
2877 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2878 Ordering::Less => i += 1,
2879 Ordering::Equal => break,
2880 Ordering::Greater => break,
2881 }
2882 }
2883 }
2884 }
2885 this.autoclose_regions.insert(
2886 i,
2887 AutocloseRegion {
2888 selection_id,
2889 range: start..end,
2890 pair,
2891 },
2892 );
2893 }
2894
2895 let had_active_inline_completion = this.has_active_inline_completion();
2896 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2897 s.select(new_selections)
2898 });
2899
2900 if !bracket_inserted {
2901 if let Some(on_type_format_task) =
2902 this.trigger_on_type_formatting(text.to_string(), cx)
2903 {
2904 on_type_format_task.detach_and_log_err(cx);
2905 }
2906 }
2907
2908 let editor_settings = EditorSettings::get_global(cx);
2909 if bracket_inserted
2910 && (editor_settings.auto_signature_help
2911 || editor_settings.show_signature_help_after_edits)
2912 {
2913 this.show_signature_help(&ShowSignatureHelp, cx);
2914 }
2915
2916 let trigger_in_words =
2917 this.show_inline_completions_in_menu(cx) || !had_active_inline_completion;
2918 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2919 linked_editing_ranges::refresh_linked_ranges(this, cx);
2920 this.refresh_inline_completion(true, false, cx);
2921 });
2922 }
2923
2924 fn find_possible_emoji_shortcode_at_position(
2925 snapshot: &MultiBufferSnapshot,
2926 position: Point,
2927 ) -> Option<String> {
2928 let mut chars = Vec::new();
2929 let mut found_colon = false;
2930 for char in snapshot.reversed_chars_at(position).take(100) {
2931 // Found a possible emoji shortcode in the middle of the buffer
2932 if found_colon {
2933 if char.is_whitespace() {
2934 chars.reverse();
2935 return Some(chars.iter().collect());
2936 }
2937 // If the previous character is not a whitespace, we are in the middle of a word
2938 // and we only want to complete the shortcode if the word is made up of other emojis
2939 let mut containing_word = String::new();
2940 for ch in snapshot
2941 .reversed_chars_at(position)
2942 .skip(chars.len() + 1)
2943 .take(100)
2944 {
2945 if ch.is_whitespace() {
2946 break;
2947 }
2948 containing_word.push(ch);
2949 }
2950 let containing_word = containing_word.chars().rev().collect::<String>();
2951 if util::word_consists_of_emojis(containing_word.as_str()) {
2952 chars.reverse();
2953 return Some(chars.iter().collect());
2954 }
2955 }
2956
2957 if char.is_whitespace() || !char.is_ascii() {
2958 return None;
2959 }
2960 if char == ':' {
2961 found_colon = true;
2962 } else {
2963 chars.push(char);
2964 }
2965 }
2966 // Found a possible emoji shortcode at the beginning of the buffer
2967 chars.reverse();
2968 Some(chars.iter().collect())
2969 }
2970
2971 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2972 self.transact(cx, |this, cx| {
2973 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2974 let selections = this.selections.all::<usize>(cx);
2975 let multi_buffer = this.buffer.read(cx);
2976 let buffer = multi_buffer.snapshot(cx);
2977 selections
2978 .iter()
2979 .map(|selection| {
2980 let start_point = selection.start.to_point(&buffer);
2981 let mut indent =
2982 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2983 indent.len = cmp::min(indent.len, start_point.column);
2984 let start = selection.start;
2985 let end = selection.end;
2986 let selection_is_empty = start == end;
2987 let language_scope = buffer.language_scope_at(start);
2988 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2989 &language_scope
2990 {
2991 let leading_whitespace_len = buffer
2992 .reversed_chars_at(start)
2993 .take_while(|c| c.is_whitespace() && *c != '\n')
2994 .map(|c| c.len_utf8())
2995 .sum::<usize>();
2996
2997 let trailing_whitespace_len = buffer
2998 .chars_at(end)
2999 .take_while(|c| c.is_whitespace() && *c != '\n')
3000 .map(|c| c.len_utf8())
3001 .sum::<usize>();
3002
3003 let insert_extra_newline =
3004 language.brackets().any(|(pair, enabled)| {
3005 let pair_start = pair.start.trim_end();
3006 let pair_end = pair.end.trim_start();
3007
3008 enabled
3009 && pair.newline
3010 && buffer.contains_str_at(
3011 end + trailing_whitespace_len,
3012 pair_end,
3013 )
3014 && buffer.contains_str_at(
3015 (start - leading_whitespace_len)
3016 .saturating_sub(pair_start.len()),
3017 pair_start,
3018 )
3019 });
3020
3021 // Comment extension on newline is allowed only for cursor selections
3022 let comment_delimiter = maybe!({
3023 if !selection_is_empty {
3024 return None;
3025 }
3026
3027 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3028 return None;
3029 }
3030
3031 let delimiters = language.line_comment_prefixes();
3032 let max_len_of_delimiter =
3033 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3034 let (snapshot, range) =
3035 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3036
3037 let mut index_of_first_non_whitespace = 0;
3038 let comment_candidate = snapshot
3039 .chars_for_range(range)
3040 .skip_while(|c| {
3041 let should_skip = c.is_whitespace();
3042 if should_skip {
3043 index_of_first_non_whitespace += 1;
3044 }
3045 should_skip
3046 })
3047 .take(max_len_of_delimiter)
3048 .collect::<String>();
3049 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3050 comment_candidate.starts_with(comment_prefix.as_ref())
3051 })?;
3052 let cursor_is_placed_after_comment_marker =
3053 index_of_first_non_whitespace + comment_prefix.len()
3054 <= start_point.column as usize;
3055 if cursor_is_placed_after_comment_marker {
3056 Some(comment_prefix.clone())
3057 } else {
3058 None
3059 }
3060 });
3061 (comment_delimiter, insert_extra_newline)
3062 } else {
3063 (None, false)
3064 };
3065
3066 let capacity_for_delimiter = comment_delimiter
3067 .as_deref()
3068 .map(str::len)
3069 .unwrap_or_default();
3070 let mut new_text =
3071 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3072 new_text.push('\n');
3073 new_text.extend(indent.chars());
3074 if let Some(delimiter) = &comment_delimiter {
3075 new_text.push_str(delimiter);
3076 }
3077 if insert_extra_newline {
3078 new_text = new_text.repeat(2);
3079 }
3080
3081 let anchor = buffer.anchor_after(end);
3082 let new_selection = selection.map(|_| anchor);
3083 (
3084 (start..end, new_text),
3085 (insert_extra_newline, new_selection),
3086 )
3087 })
3088 .unzip()
3089 };
3090
3091 this.edit_with_autoindent(edits, cx);
3092 let buffer = this.buffer.read(cx).snapshot(cx);
3093 let new_selections = selection_fixup_info
3094 .into_iter()
3095 .map(|(extra_newline_inserted, new_selection)| {
3096 let mut cursor = new_selection.end.to_point(&buffer);
3097 if extra_newline_inserted {
3098 cursor.row -= 1;
3099 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3100 }
3101 new_selection.map(|_| cursor)
3102 })
3103 .collect();
3104
3105 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3106 this.refresh_inline_completion(true, false, cx);
3107 });
3108 }
3109
3110 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3111 let buffer = self.buffer.read(cx);
3112 let snapshot = buffer.snapshot(cx);
3113
3114 let mut edits = Vec::new();
3115 let mut rows = Vec::new();
3116
3117 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3118 let cursor = selection.head();
3119 let row = cursor.row;
3120
3121 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3122
3123 let newline = "\n".to_string();
3124 edits.push((start_of_line..start_of_line, newline));
3125
3126 rows.push(row + rows_inserted as u32);
3127 }
3128
3129 self.transact(cx, |editor, cx| {
3130 editor.edit(edits, cx);
3131
3132 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3133 let mut index = 0;
3134 s.move_cursors_with(|map, _, _| {
3135 let row = rows[index];
3136 index += 1;
3137
3138 let point = Point::new(row, 0);
3139 let boundary = map.next_line_boundary(point).1;
3140 let clipped = map.clip_point(boundary, Bias::Left);
3141
3142 (clipped, SelectionGoal::None)
3143 });
3144 });
3145
3146 let mut indent_edits = Vec::new();
3147 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3148 for row in rows {
3149 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3150 for (row, indent) in indents {
3151 if indent.len == 0 {
3152 continue;
3153 }
3154
3155 let text = match indent.kind {
3156 IndentKind::Space => " ".repeat(indent.len as usize),
3157 IndentKind::Tab => "\t".repeat(indent.len as usize),
3158 };
3159 let point = Point::new(row.0, 0);
3160 indent_edits.push((point..point, text));
3161 }
3162 }
3163 editor.edit(indent_edits, cx);
3164 });
3165 }
3166
3167 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3168 let buffer = self.buffer.read(cx);
3169 let snapshot = buffer.snapshot(cx);
3170
3171 let mut edits = Vec::new();
3172 let mut rows = Vec::new();
3173 let mut rows_inserted = 0;
3174
3175 for selection in self.selections.all_adjusted(cx) {
3176 let cursor = selection.head();
3177 let row = cursor.row;
3178
3179 let point = Point::new(row + 1, 0);
3180 let start_of_line = snapshot.clip_point(point, Bias::Left);
3181
3182 let newline = "\n".to_string();
3183 edits.push((start_of_line..start_of_line, newline));
3184
3185 rows_inserted += 1;
3186 rows.push(row + rows_inserted);
3187 }
3188
3189 self.transact(cx, |editor, cx| {
3190 editor.edit(edits, cx);
3191
3192 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3193 let mut index = 0;
3194 s.move_cursors_with(|map, _, _| {
3195 let row = rows[index];
3196 index += 1;
3197
3198 let point = Point::new(row, 0);
3199 let boundary = map.next_line_boundary(point).1;
3200 let clipped = map.clip_point(boundary, Bias::Left);
3201
3202 (clipped, SelectionGoal::None)
3203 });
3204 });
3205
3206 let mut indent_edits = Vec::new();
3207 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3208 for row in rows {
3209 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3210 for (row, indent) in indents {
3211 if indent.len == 0 {
3212 continue;
3213 }
3214
3215 let text = match indent.kind {
3216 IndentKind::Space => " ".repeat(indent.len as usize),
3217 IndentKind::Tab => "\t".repeat(indent.len as usize),
3218 };
3219 let point = Point::new(row.0, 0);
3220 indent_edits.push((point..point, text));
3221 }
3222 }
3223 editor.edit(indent_edits, cx);
3224 });
3225 }
3226
3227 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3228 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3229 original_indent_columns: Vec::new(),
3230 });
3231 self.insert_with_autoindent_mode(text, autoindent, cx);
3232 }
3233
3234 fn insert_with_autoindent_mode(
3235 &mut self,
3236 text: &str,
3237 autoindent_mode: Option<AutoindentMode>,
3238 cx: &mut ViewContext<Self>,
3239 ) {
3240 if self.read_only(cx) {
3241 return;
3242 }
3243
3244 let text: Arc<str> = text.into();
3245 self.transact(cx, |this, cx| {
3246 let old_selections = this.selections.all_adjusted(cx);
3247 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3248 let anchors = {
3249 let snapshot = buffer.read(cx);
3250 old_selections
3251 .iter()
3252 .map(|s| {
3253 let anchor = snapshot.anchor_after(s.head());
3254 s.map(|_| anchor)
3255 })
3256 .collect::<Vec<_>>()
3257 };
3258 buffer.edit(
3259 old_selections
3260 .iter()
3261 .map(|s| (s.start..s.end, text.clone())),
3262 autoindent_mode,
3263 cx,
3264 );
3265 anchors
3266 });
3267
3268 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3269 s.select_anchors(selection_anchors);
3270 })
3271 });
3272 }
3273
3274 fn trigger_completion_on_input(
3275 &mut self,
3276 text: &str,
3277 trigger_in_words: bool,
3278 cx: &mut ViewContext<Self>,
3279 ) {
3280 if self.is_completion_trigger(text, trigger_in_words, cx) {
3281 self.show_completions(
3282 &ShowCompletions {
3283 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3284 },
3285 cx,
3286 );
3287 } else {
3288 self.hide_context_menu(cx);
3289 }
3290 }
3291
3292 fn is_completion_trigger(
3293 &self,
3294 text: &str,
3295 trigger_in_words: bool,
3296 cx: &mut ViewContext<Self>,
3297 ) -> bool {
3298 let position = self.selections.newest_anchor().head();
3299 let multibuffer = self.buffer.read(cx);
3300 let Some(buffer) = position
3301 .buffer_id
3302 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3303 else {
3304 return false;
3305 };
3306
3307 if let Some(completion_provider) = &self.completion_provider {
3308 completion_provider.is_completion_trigger(
3309 &buffer,
3310 position.text_anchor,
3311 text,
3312 trigger_in_words,
3313 cx,
3314 )
3315 } else {
3316 false
3317 }
3318 }
3319
3320 /// If any empty selections is touching the start of its innermost containing autoclose
3321 /// region, expand it to select the brackets.
3322 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3323 let selections = self.selections.all::<usize>(cx);
3324 let buffer = self.buffer.read(cx).read(cx);
3325 let new_selections = self
3326 .selections_with_autoclose_regions(selections, &buffer)
3327 .map(|(mut selection, region)| {
3328 if !selection.is_empty() {
3329 return selection;
3330 }
3331
3332 if let Some(region) = region {
3333 let mut range = region.range.to_offset(&buffer);
3334 if selection.start == range.start && range.start >= region.pair.start.len() {
3335 range.start -= region.pair.start.len();
3336 if buffer.contains_str_at(range.start, ®ion.pair.start)
3337 && buffer.contains_str_at(range.end, ®ion.pair.end)
3338 {
3339 range.end += region.pair.end.len();
3340 selection.start = range.start;
3341 selection.end = range.end;
3342
3343 return selection;
3344 }
3345 }
3346 }
3347
3348 let always_treat_brackets_as_autoclosed = buffer
3349 .settings_at(selection.start, cx)
3350 .always_treat_brackets_as_autoclosed;
3351
3352 if !always_treat_brackets_as_autoclosed {
3353 return selection;
3354 }
3355
3356 if let Some(scope) = buffer.language_scope_at(selection.start) {
3357 for (pair, enabled) in scope.brackets() {
3358 if !enabled || !pair.close {
3359 continue;
3360 }
3361
3362 if buffer.contains_str_at(selection.start, &pair.end) {
3363 let pair_start_len = pair.start.len();
3364 if buffer.contains_str_at(
3365 selection.start.saturating_sub(pair_start_len),
3366 &pair.start,
3367 ) {
3368 selection.start -= pair_start_len;
3369 selection.end += pair.end.len();
3370
3371 return selection;
3372 }
3373 }
3374 }
3375 }
3376
3377 selection
3378 })
3379 .collect();
3380
3381 drop(buffer);
3382 self.change_selections(None, cx, |selections| selections.select(new_selections));
3383 }
3384
3385 /// Iterate the given selections, and for each one, find the smallest surrounding
3386 /// autoclose region. This uses the ordering of the selections and the autoclose
3387 /// regions to avoid repeated comparisons.
3388 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3389 &'a self,
3390 selections: impl IntoIterator<Item = Selection<D>>,
3391 buffer: &'a MultiBufferSnapshot,
3392 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3393 let mut i = 0;
3394 let mut regions = self.autoclose_regions.as_slice();
3395 selections.into_iter().map(move |selection| {
3396 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3397
3398 let mut enclosing = None;
3399 while let Some(pair_state) = regions.get(i) {
3400 if pair_state.range.end.to_offset(buffer) < range.start {
3401 regions = ®ions[i + 1..];
3402 i = 0;
3403 } else if pair_state.range.start.to_offset(buffer) > range.end {
3404 break;
3405 } else {
3406 if pair_state.selection_id == selection.id {
3407 enclosing = Some(pair_state);
3408 }
3409 i += 1;
3410 }
3411 }
3412
3413 (selection, enclosing)
3414 })
3415 }
3416
3417 /// Remove any autoclose regions that no longer contain their selection.
3418 fn invalidate_autoclose_regions(
3419 &mut self,
3420 mut selections: &[Selection<Anchor>],
3421 buffer: &MultiBufferSnapshot,
3422 ) {
3423 self.autoclose_regions.retain(|state| {
3424 let mut i = 0;
3425 while let Some(selection) = selections.get(i) {
3426 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3427 selections = &selections[1..];
3428 continue;
3429 }
3430 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3431 break;
3432 }
3433 if selection.id == state.selection_id {
3434 return true;
3435 } else {
3436 i += 1;
3437 }
3438 }
3439 false
3440 });
3441 }
3442
3443 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3444 let offset = position.to_offset(buffer);
3445 let (word_range, kind) = buffer.surrounding_word(offset, true);
3446 if offset > word_range.start && kind == Some(CharKind::Word) {
3447 Some(
3448 buffer
3449 .text_for_range(word_range.start..offset)
3450 .collect::<String>(),
3451 )
3452 } else {
3453 None
3454 }
3455 }
3456
3457 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3458 self.refresh_inlay_hints(
3459 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3460 cx,
3461 );
3462 }
3463
3464 pub fn inlay_hints_enabled(&self) -> bool {
3465 self.inlay_hint_cache.enabled
3466 }
3467
3468 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3469 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3470 return;
3471 }
3472
3473 let reason_description = reason.description();
3474 let ignore_debounce = matches!(
3475 reason,
3476 InlayHintRefreshReason::SettingsChange(_)
3477 | InlayHintRefreshReason::Toggle(_)
3478 | InlayHintRefreshReason::ExcerptsRemoved(_)
3479 );
3480 let (invalidate_cache, required_languages) = match reason {
3481 InlayHintRefreshReason::Toggle(enabled) => {
3482 self.inlay_hint_cache.enabled = enabled;
3483 if enabled {
3484 (InvalidationStrategy::RefreshRequested, None)
3485 } else {
3486 self.inlay_hint_cache.clear();
3487 self.splice_inlays(
3488 self.visible_inlay_hints(cx)
3489 .iter()
3490 .map(|inlay| inlay.id)
3491 .collect(),
3492 Vec::new(),
3493 cx,
3494 );
3495 return;
3496 }
3497 }
3498 InlayHintRefreshReason::SettingsChange(new_settings) => {
3499 match self.inlay_hint_cache.update_settings(
3500 &self.buffer,
3501 new_settings,
3502 self.visible_inlay_hints(cx),
3503 cx,
3504 ) {
3505 ControlFlow::Break(Some(InlaySplice {
3506 to_remove,
3507 to_insert,
3508 })) => {
3509 self.splice_inlays(to_remove, to_insert, cx);
3510 return;
3511 }
3512 ControlFlow::Break(None) => return,
3513 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3514 }
3515 }
3516 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3517 if let Some(InlaySplice {
3518 to_remove,
3519 to_insert,
3520 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3521 {
3522 self.splice_inlays(to_remove, to_insert, cx);
3523 }
3524 return;
3525 }
3526 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3527 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3528 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3529 }
3530 InlayHintRefreshReason::RefreshRequested => {
3531 (InvalidationStrategy::RefreshRequested, None)
3532 }
3533 };
3534
3535 if let Some(InlaySplice {
3536 to_remove,
3537 to_insert,
3538 }) = self.inlay_hint_cache.spawn_hint_refresh(
3539 reason_description,
3540 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3541 invalidate_cache,
3542 ignore_debounce,
3543 cx,
3544 ) {
3545 self.splice_inlays(to_remove, to_insert, cx);
3546 }
3547 }
3548
3549 fn visible_inlay_hints(&self, cx: &ViewContext<Editor>) -> Vec<Inlay> {
3550 self.display_map
3551 .read(cx)
3552 .current_inlays()
3553 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3554 .cloned()
3555 .collect()
3556 }
3557
3558 pub fn excerpts_for_inlay_hints_query(
3559 &self,
3560 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3561 cx: &mut ViewContext<Editor>,
3562 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3563 let Some(project) = self.project.as_ref() else {
3564 return HashMap::default();
3565 };
3566 let project = project.read(cx);
3567 let multi_buffer = self.buffer().read(cx);
3568 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3569 let multi_buffer_visible_start = self
3570 .scroll_manager
3571 .anchor()
3572 .anchor
3573 .to_point(&multi_buffer_snapshot);
3574 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3575 multi_buffer_visible_start
3576 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3577 Bias::Left,
3578 );
3579 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3580 multi_buffer_snapshot
3581 .range_to_buffer_ranges(multi_buffer_visible_range)
3582 .into_iter()
3583 .filter(|(_, excerpt_visible_range)| !excerpt_visible_range.is_empty())
3584 .filter_map(|(excerpt, excerpt_visible_range)| {
3585 let buffer_file = project::File::from_dyn(excerpt.buffer().file())?;
3586 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3587 let worktree_entry = buffer_worktree
3588 .read(cx)
3589 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3590 if worktree_entry.is_ignored {
3591 return None;
3592 }
3593
3594 let language = excerpt.buffer().language()?;
3595 if let Some(restrict_to_languages) = restrict_to_languages {
3596 if !restrict_to_languages.contains(language) {
3597 return None;
3598 }
3599 }
3600 Some((
3601 excerpt.id(),
3602 (
3603 multi_buffer.buffer(excerpt.buffer_id()).unwrap(),
3604 excerpt.buffer().version().clone(),
3605 excerpt_visible_range,
3606 ),
3607 ))
3608 })
3609 .collect()
3610 }
3611
3612 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3613 TextLayoutDetails {
3614 text_system: cx.text_system().clone(),
3615 editor_style: self.style.clone().unwrap(),
3616 rem_size: cx.rem_size(),
3617 scroll_anchor: self.scroll_manager.anchor(),
3618 visible_rows: self.visible_line_count(),
3619 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3620 }
3621 }
3622
3623 pub fn splice_inlays(
3624 &self,
3625 to_remove: Vec<InlayId>,
3626 to_insert: Vec<Inlay>,
3627 cx: &mut ViewContext<Self>,
3628 ) {
3629 self.display_map.update(cx, |display_map, cx| {
3630 display_map.splice_inlays(to_remove, to_insert, cx)
3631 });
3632 cx.notify();
3633 }
3634
3635 fn trigger_on_type_formatting(
3636 &self,
3637 input: String,
3638 cx: &mut ViewContext<Self>,
3639 ) -> Option<Task<Result<()>>> {
3640 if input.len() != 1 {
3641 return None;
3642 }
3643
3644 let project = self.project.as_ref()?;
3645 let position = self.selections.newest_anchor().head();
3646 let (buffer, buffer_position) = self
3647 .buffer
3648 .read(cx)
3649 .text_anchor_for_position(position, cx)?;
3650
3651 let settings = language_settings::language_settings(
3652 buffer
3653 .read(cx)
3654 .language_at(buffer_position)
3655 .map(|l| l.name()),
3656 buffer.read(cx).file(),
3657 cx,
3658 );
3659 if !settings.use_on_type_format {
3660 return None;
3661 }
3662
3663 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3664 // hence we do LSP request & edit on host side only — add formats to host's history.
3665 let push_to_lsp_host_history = true;
3666 // If this is not the host, append its history with new edits.
3667 let push_to_client_history = project.read(cx).is_via_collab();
3668
3669 let on_type_formatting = project.update(cx, |project, cx| {
3670 project.on_type_format(
3671 buffer.clone(),
3672 buffer_position,
3673 input,
3674 push_to_lsp_host_history,
3675 cx,
3676 )
3677 });
3678 Some(cx.spawn(|editor, mut cx| async move {
3679 if let Some(transaction) = on_type_formatting.await? {
3680 if push_to_client_history {
3681 buffer
3682 .update(&mut cx, |buffer, _| {
3683 buffer.push_transaction(transaction, Instant::now());
3684 })
3685 .ok();
3686 }
3687 editor.update(&mut cx, |editor, cx| {
3688 editor.refresh_document_highlights(cx);
3689 })?;
3690 }
3691 Ok(())
3692 }))
3693 }
3694
3695 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3696 if self.pending_rename.is_some() {
3697 return;
3698 }
3699
3700 let Some(provider) = self.completion_provider.as_ref() else {
3701 return;
3702 };
3703
3704 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3705 return;
3706 }
3707
3708 let position = self.selections.newest_anchor().head();
3709 let (buffer, buffer_position) =
3710 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3711 output
3712 } else {
3713 return;
3714 };
3715 let show_completion_documentation = buffer
3716 .read(cx)
3717 .snapshot()
3718 .settings_at(buffer_position, cx)
3719 .show_completion_documentation;
3720
3721 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3722
3723 let trigger_kind = match &options.trigger {
3724 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3725 CompletionTriggerKind::TRIGGER_CHARACTER
3726 }
3727 _ => CompletionTriggerKind::INVOKED,
3728 };
3729 let completion_context = CompletionContext {
3730 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3731 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3732 Some(String::from(trigger))
3733 } else {
3734 None
3735 }
3736 }),
3737 trigger_kind,
3738 };
3739 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3740 let sort_completions = provider.sort_completions();
3741
3742 let id = post_inc(&mut self.next_completion_id);
3743 let task = cx.spawn(|editor, mut cx| {
3744 async move {
3745 editor.update(&mut cx, |this, _| {
3746 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3747 })?;
3748 let completions = completions.await.log_err();
3749 let menu = if let Some(completions) = completions {
3750 let mut menu = CompletionsMenu::new(
3751 id,
3752 sort_completions,
3753 show_completion_documentation,
3754 position,
3755 buffer.clone(),
3756 completions.into(),
3757 );
3758
3759 menu.filter(query.as_deref(), cx.background_executor().clone())
3760 .await;
3761
3762 menu.visible().then_some(menu)
3763 } else {
3764 None
3765 };
3766
3767 editor.update(&mut cx, |editor, cx| {
3768 match editor.context_menu.borrow().as_ref() {
3769 None => {}
3770 Some(CodeContextMenu::Completions(prev_menu)) => {
3771 if prev_menu.id > id {
3772 return;
3773 }
3774 }
3775 _ => return,
3776 }
3777
3778 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3779 let mut menu = menu.unwrap();
3780 menu.resolve_visible_completions(editor.completion_provider.as_deref(), cx);
3781
3782 if editor.show_inline_completions_in_menu(cx) {
3783 if let Some(hint) = editor.inline_completion_menu_hint(cx) {
3784 menu.show_inline_completion_hint(hint);
3785 }
3786 } else {
3787 editor.discard_inline_completion(false, cx);
3788 }
3789
3790 *editor.context_menu.borrow_mut() =
3791 Some(CodeContextMenu::Completions(menu));
3792
3793 cx.notify();
3794 } else if editor.completion_tasks.len() <= 1 {
3795 // If there are no more completion tasks and the last menu was
3796 // empty, we should hide it.
3797 let was_hidden = editor.hide_context_menu(cx).is_none();
3798 // If it was already hidden and we don't show inline
3799 // completions in the menu, we should also show the
3800 // inline-completion when available.
3801 if was_hidden && editor.show_inline_completions_in_menu(cx) {
3802 editor.update_visible_inline_completion(cx);
3803 }
3804 }
3805 })?;
3806
3807 Ok::<_, anyhow::Error>(())
3808 }
3809 .log_err()
3810 });
3811
3812 self.completion_tasks.push((id, task));
3813 }
3814
3815 pub fn confirm_completion(
3816 &mut self,
3817 action: &ConfirmCompletion,
3818 cx: &mut ViewContext<Self>,
3819 ) -> Option<Task<Result<()>>> {
3820 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3821 }
3822
3823 pub fn compose_completion(
3824 &mut self,
3825 action: &ComposeCompletion,
3826 cx: &mut ViewContext<Self>,
3827 ) -> Option<Task<Result<()>>> {
3828 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3829 }
3830
3831 fn do_completion(
3832 &mut self,
3833 item_ix: Option<usize>,
3834 intent: CompletionIntent,
3835 cx: &mut ViewContext<Editor>,
3836 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3837 use language::ToOffset as _;
3838
3839 {
3840 let context_menu = self.context_menu.borrow();
3841 if let CodeContextMenu::Completions(menu) = context_menu.as_ref()? {
3842 let entries = menu.entries.borrow();
3843 let entry = entries.get(item_ix.unwrap_or(menu.selected_item));
3844 match entry {
3845 Some(CompletionEntry::InlineCompletionHint(
3846 InlineCompletionMenuHint::Loading,
3847 )) => return Some(Task::ready(Ok(()))),
3848 Some(CompletionEntry::InlineCompletionHint(InlineCompletionMenuHint::None)) => {
3849 drop(entries);
3850 drop(context_menu);
3851 self.context_menu_next(&Default::default(), cx);
3852 return Some(Task::ready(Ok(())));
3853 }
3854 _ => {}
3855 }
3856 }
3857 }
3858
3859 let completions_menu =
3860 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3861 menu
3862 } else {
3863 return None;
3864 };
3865
3866 let entries = completions_menu.entries.borrow();
3867 let mat = entries.get(item_ix.unwrap_or(completions_menu.selected_item))?;
3868 let mat = match mat {
3869 CompletionEntry::InlineCompletionHint(_) => {
3870 self.accept_inline_completion(&AcceptInlineCompletion, cx);
3871 cx.stop_propagation();
3872 return Some(Task::ready(Ok(())));
3873 }
3874 CompletionEntry::Match(mat) => {
3875 if self.show_inline_completions_in_menu(cx) {
3876 self.discard_inline_completion(true, cx);
3877 }
3878 mat
3879 }
3880 };
3881 let candidate_id = mat.candidate_id;
3882 drop(entries);
3883
3884 let buffer_handle = completions_menu.buffer;
3885 let completion = completions_menu
3886 .completions
3887 .borrow()
3888 .get(candidate_id)?
3889 .clone();
3890 cx.stop_propagation();
3891
3892 let snippet;
3893 let text;
3894
3895 if completion.is_snippet() {
3896 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3897 text = snippet.as_ref().unwrap().text.clone();
3898 } else {
3899 snippet = None;
3900 text = completion.new_text.clone();
3901 };
3902 let selections = self.selections.all::<usize>(cx);
3903 let buffer = buffer_handle.read(cx);
3904 let old_range = completion.old_range.to_offset(buffer);
3905 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3906
3907 let newest_selection = self.selections.newest_anchor();
3908 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3909 return None;
3910 }
3911
3912 let lookbehind = newest_selection
3913 .start
3914 .text_anchor
3915 .to_offset(buffer)
3916 .saturating_sub(old_range.start);
3917 let lookahead = old_range
3918 .end
3919 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3920 let mut common_prefix_len = old_text
3921 .bytes()
3922 .zip(text.bytes())
3923 .take_while(|(a, b)| a == b)
3924 .count();
3925
3926 let snapshot = self.buffer.read(cx).snapshot(cx);
3927 let mut range_to_replace: Option<Range<isize>> = None;
3928 let mut ranges = Vec::new();
3929 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3930 for selection in &selections {
3931 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3932 let start = selection.start.saturating_sub(lookbehind);
3933 let end = selection.end + lookahead;
3934 if selection.id == newest_selection.id {
3935 range_to_replace = Some(
3936 ((start + common_prefix_len) as isize - selection.start as isize)
3937 ..(end as isize - selection.start as isize),
3938 );
3939 }
3940 ranges.push(start + common_prefix_len..end);
3941 } else {
3942 common_prefix_len = 0;
3943 ranges.clear();
3944 ranges.extend(selections.iter().map(|s| {
3945 if s.id == newest_selection.id {
3946 range_to_replace = Some(
3947 old_range.start.to_offset_utf16(&snapshot).0 as isize
3948 - selection.start as isize
3949 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3950 - selection.start as isize,
3951 );
3952 old_range.clone()
3953 } else {
3954 s.start..s.end
3955 }
3956 }));
3957 break;
3958 }
3959 if !self.linked_edit_ranges.is_empty() {
3960 let start_anchor = snapshot.anchor_before(selection.head());
3961 let end_anchor = snapshot.anchor_after(selection.tail());
3962 if let Some(ranges) = self
3963 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
3964 {
3965 for (buffer, edits) in ranges {
3966 linked_edits.entry(buffer.clone()).or_default().extend(
3967 edits
3968 .into_iter()
3969 .map(|range| (range, text[common_prefix_len..].to_owned())),
3970 );
3971 }
3972 }
3973 }
3974 }
3975 let text = &text[common_prefix_len..];
3976
3977 cx.emit(EditorEvent::InputHandled {
3978 utf16_range_to_replace: range_to_replace,
3979 text: text.into(),
3980 });
3981
3982 self.transact(cx, |this, cx| {
3983 if let Some(mut snippet) = snippet {
3984 snippet.text = text.to_string();
3985 for tabstop in snippet
3986 .tabstops
3987 .iter_mut()
3988 .flat_map(|tabstop| tabstop.ranges.iter_mut())
3989 {
3990 tabstop.start -= common_prefix_len as isize;
3991 tabstop.end -= common_prefix_len as isize;
3992 }
3993
3994 this.insert_snippet(&ranges, snippet, cx).log_err();
3995 } else {
3996 this.buffer.update(cx, |buffer, cx| {
3997 buffer.edit(
3998 ranges.iter().map(|range| (range.clone(), text)),
3999 this.autoindent_mode.clone(),
4000 cx,
4001 );
4002 });
4003 }
4004 for (buffer, edits) in linked_edits {
4005 buffer.update(cx, |buffer, cx| {
4006 let snapshot = buffer.snapshot();
4007 let edits = edits
4008 .into_iter()
4009 .map(|(range, text)| {
4010 use text::ToPoint as TP;
4011 let end_point = TP::to_point(&range.end, &snapshot);
4012 let start_point = TP::to_point(&range.start, &snapshot);
4013 (start_point..end_point, text)
4014 })
4015 .sorted_by_key(|(range, _)| range.start)
4016 .collect::<Vec<_>>();
4017 buffer.edit(edits, None, cx);
4018 })
4019 }
4020
4021 this.refresh_inline_completion(true, false, cx);
4022 });
4023
4024 let show_new_completions_on_confirm = completion
4025 .confirm
4026 .as_ref()
4027 .map_or(false, |confirm| confirm(intent, cx));
4028 if show_new_completions_on_confirm {
4029 self.show_completions(&ShowCompletions { trigger: None }, cx);
4030 }
4031
4032 let provider = self.completion_provider.as_ref()?;
4033 drop(completion);
4034 let apply_edits = provider.apply_additional_edits_for_completion(
4035 buffer_handle,
4036 completions_menu.completions.clone(),
4037 candidate_id,
4038 true,
4039 cx,
4040 );
4041
4042 let editor_settings = EditorSettings::get_global(cx);
4043 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4044 // After the code completion is finished, users often want to know what signatures are needed.
4045 // so we should automatically call signature_help
4046 self.show_signature_help(&ShowSignatureHelp, cx);
4047 }
4048
4049 Some(cx.foreground_executor().spawn(async move {
4050 apply_edits.await?;
4051 Ok(())
4052 }))
4053 }
4054
4055 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4056 let mut context_menu = self.context_menu.borrow_mut();
4057 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4058 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4059 // Toggle if we're selecting the same one
4060 *context_menu = None;
4061 cx.notify();
4062 return;
4063 } else {
4064 // Otherwise, clear it and start a new one
4065 *context_menu = None;
4066 cx.notify();
4067 }
4068 }
4069 drop(context_menu);
4070 let snapshot = self.snapshot(cx);
4071 let deployed_from_indicator = action.deployed_from_indicator;
4072 let mut task = self.code_actions_task.take();
4073 let action = action.clone();
4074 cx.spawn(|editor, mut cx| async move {
4075 while let Some(prev_task) = task {
4076 prev_task.await.log_err();
4077 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4078 }
4079
4080 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4081 if editor.focus_handle.is_focused(cx) {
4082 let multibuffer_point = action
4083 .deployed_from_indicator
4084 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4085 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4086 let (buffer, buffer_row) = snapshot
4087 .buffer_snapshot
4088 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4089 .and_then(|(buffer_snapshot, range)| {
4090 editor
4091 .buffer
4092 .read(cx)
4093 .buffer(buffer_snapshot.remote_id())
4094 .map(|buffer| (buffer, range.start.row))
4095 })?;
4096 let (_, code_actions) = editor
4097 .available_code_actions
4098 .clone()
4099 .and_then(|(location, code_actions)| {
4100 let snapshot = location.buffer.read(cx).snapshot();
4101 let point_range = location.range.to_point(&snapshot);
4102 let point_range = point_range.start.row..=point_range.end.row;
4103 if point_range.contains(&buffer_row) {
4104 Some((location, code_actions))
4105 } else {
4106 None
4107 }
4108 })
4109 .unzip();
4110 let buffer_id = buffer.read(cx).remote_id();
4111 let tasks = editor
4112 .tasks
4113 .get(&(buffer_id, buffer_row))
4114 .map(|t| Arc::new(t.to_owned()));
4115 if tasks.is_none() && code_actions.is_none() {
4116 return None;
4117 }
4118
4119 editor.completion_tasks.clear();
4120 editor.discard_inline_completion(false, cx);
4121 let task_context =
4122 tasks
4123 .as_ref()
4124 .zip(editor.project.clone())
4125 .map(|(tasks, project)| {
4126 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4127 });
4128
4129 Some(cx.spawn(|editor, mut cx| async move {
4130 let task_context = match task_context {
4131 Some(task_context) => task_context.await,
4132 None => None,
4133 };
4134 let resolved_tasks =
4135 tasks.zip(task_context).map(|(tasks, task_context)| {
4136 Rc::new(ResolvedTasks {
4137 templates: tasks.resolve(&task_context).collect(),
4138 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4139 multibuffer_point.row,
4140 tasks.column,
4141 )),
4142 })
4143 });
4144 let spawn_straight_away = resolved_tasks
4145 .as_ref()
4146 .map_or(false, |tasks| tasks.templates.len() == 1)
4147 && code_actions
4148 .as_ref()
4149 .map_or(true, |actions| actions.is_empty());
4150 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4151 *editor.context_menu.borrow_mut() =
4152 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4153 buffer,
4154 actions: CodeActionContents {
4155 tasks: resolved_tasks,
4156 actions: code_actions,
4157 },
4158 selected_item: Default::default(),
4159 scroll_handle: UniformListScrollHandle::default(),
4160 deployed_from_indicator,
4161 }));
4162 if spawn_straight_away {
4163 if let Some(task) = editor.confirm_code_action(
4164 &ConfirmCodeAction { item_ix: Some(0) },
4165 cx,
4166 ) {
4167 cx.notify();
4168 return task;
4169 }
4170 }
4171 cx.notify();
4172 Task::ready(Ok(()))
4173 }) {
4174 task.await
4175 } else {
4176 Ok(())
4177 }
4178 }))
4179 } else {
4180 Some(Task::ready(Ok(())))
4181 }
4182 })?;
4183 if let Some(task) = spawned_test_task {
4184 task.await?;
4185 }
4186
4187 Ok::<_, anyhow::Error>(())
4188 })
4189 .detach_and_log_err(cx);
4190 }
4191
4192 pub fn confirm_code_action(
4193 &mut self,
4194 action: &ConfirmCodeAction,
4195 cx: &mut ViewContext<Self>,
4196 ) -> Option<Task<Result<()>>> {
4197 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4198 menu
4199 } else {
4200 return None;
4201 };
4202 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4203 let action = actions_menu.actions.get(action_ix)?;
4204 let title = action.label();
4205 let buffer = actions_menu.buffer;
4206 let workspace = self.workspace()?;
4207
4208 match action {
4209 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4210 workspace.update(cx, |workspace, cx| {
4211 workspace::tasks::schedule_resolved_task(
4212 workspace,
4213 task_source_kind,
4214 resolved_task,
4215 false,
4216 cx,
4217 );
4218
4219 Some(Task::ready(Ok(())))
4220 })
4221 }
4222 CodeActionsItem::CodeAction {
4223 excerpt_id,
4224 action,
4225 provider,
4226 } => {
4227 let apply_code_action =
4228 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4229 let workspace = workspace.downgrade();
4230 Some(cx.spawn(|editor, cx| async move {
4231 let project_transaction = apply_code_action.await?;
4232 Self::open_project_transaction(
4233 &editor,
4234 workspace,
4235 project_transaction,
4236 title,
4237 cx,
4238 )
4239 .await
4240 }))
4241 }
4242 }
4243 }
4244
4245 pub async fn open_project_transaction(
4246 this: &WeakView<Editor>,
4247 workspace: WeakView<Workspace>,
4248 transaction: ProjectTransaction,
4249 title: String,
4250 mut cx: AsyncWindowContext,
4251 ) -> Result<()> {
4252 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4253 cx.update(|cx| {
4254 entries.sort_unstable_by_key(|(buffer, _)| {
4255 buffer.read(cx).file().map(|f| f.path().clone())
4256 });
4257 })?;
4258
4259 // If the project transaction's edits are all contained within this editor, then
4260 // avoid opening a new editor to display them.
4261
4262 if let Some((buffer, transaction)) = entries.first() {
4263 if entries.len() == 1 {
4264 let excerpt = this.update(&mut cx, |editor, cx| {
4265 editor
4266 .buffer()
4267 .read(cx)
4268 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4269 })?;
4270 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4271 if excerpted_buffer == *buffer {
4272 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4273 let excerpt_range = excerpt_range.to_offset(buffer);
4274 buffer
4275 .edited_ranges_for_transaction::<usize>(transaction)
4276 .all(|range| {
4277 excerpt_range.start <= range.start
4278 && excerpt_range.end >= range.end
4279 })
4280 })?;
4281
4282 if all_edits_within_excerpt {
4283 return Ok(());
4284 }
4285 }
4286 }
4287 }
4288 } else {
4289 return Ok(());
4290 }
4291
4292 let mut ranges_to_highlight = Vec::new();
4293 let excerpt_buffer = cx.new_model(|cx| {
4294 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4295 for (buffer_handle, transaction) in &entries {
4296 let buffer = buffer_handle.read(cx);
4297 ranges_to_highlight.extend(
4298 multibuffer.push_excerpts_with_context_lines(
4299 buffer_handle.clone(),
4300 buffer
4301 .edited_ranges_for_transaction::<usize>(transaction)
4302 .collect(),
4303 DEFAULT_MULTIBUFFER_CONTEXT,
4304 cx,
4305 ),
4306 );
4307 }
4308 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4309 multibuffer
4310 })?;
4311
4312 workspace.update(&mut cx, |workspace, cx| {
4313 let project = workspace.project().clone();
4314 let editor =
4315 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4316 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4317 editor.update(cx, |editor, cx| {
4318 editor.highlight_background::<Self>(
4319 &ranges_to_highlight,
4320 |theme| theme.editor_highlighted_line_background,
4321 cx,
4322 );
4323 });
4324 })?;
4325
4326 Ok(())
4327 }
4328
4329 pub fn clear_code_action_providers(&mut self) {
4330 self.code_action_providers.clear();
4331 self.available_code_actions.take();
4332 }
4333
4334 pub fn add_code_action_provider(
4335 &mut self,
4336 provider: Rc<dyn CodeActionProvider>,
4337 cx: &mut ViewContext<Self>,
4338 ) {
4339 if self
4340 .code_action_providers
4341 .iter()
4342 .any(|existing_provider| existing_provider.id() == provider.id())
4343 {
4344 return;
4345 }
4346
4347 self.code_action_providers.push(provider);
4348 self.refresh_code_actions(cx);
4349 }
4350
4351 pub fn remove_code_action_provider(&mut self, id: Arc<str>, cx: &mut ViewContext<Self>) {
4352 self.code_action_providers
4353 .retain(|provider| provider.id() != id);
4354 self.refresh_code_actions(cx);
4355 }
4356
4357 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4358 let buffer = self.buffer.read(cx);
4359 let newest_selection = self.selections.newest_anchor().clone();
4360 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4361 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4362 if start_buffer != end_buffer {
4363 return None;
4364 }
4365
4366 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4367 cx.background_executor()
4368 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4369 .await;
4370
4371 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4372 let providers = this.code_action_providers.clone();
4373 let tasks = this
4374 .code_action_providers
4375 .iter()
4376 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4377 .collect::<Vec<_>>();
4378 (providers, tasks)
4379 })?;
4380
4381 let mut actions = Vec::new();
4382 for (provider, provider_actions) in
4383 providers.into_iter().zip(future::join_all(tasks).await)
4384 {
4385 if let Some(provider_actions) = provider_actions.log_err() {
4386 actions.extend(provider_actions.into_iter().map(|action| {
4387 AvailableCodeAction {
4388 excerpt_id: newest_selection.start.excerpt_id,
4389 action,
4390 provider: provider.clone(),
4391 }
4392 }));
4393 }
4394 }
4395
4396 this.update(&mut cx, |this, cx| {
4397 this.available_code_actions = if actions.is_empty() {
4398 None
4399 } else {
4400 Some((
4401 Location {
4402 buffer: start_buffer,
4403 range: start..end,
4404 },
4405 actions.into(),
4406 ))
4407 };
4408 cx.notify();
4409 })
4410 }));
4411 None
4412 }
4413
4414 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4415 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4416 self.show_git_blame_inline = false;
4417
4418 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4419 cx.background_executor().timer(delay).await;
4420
4421 this.update(&mut cx, |this, cx| {
4422 this.show_git_blame_inline = true;
4423 cx.notify();
4424 })
4425 .log_err();
4426 }));
4427 }
4428 }
4429
4430 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4431 if self.pending_rename.is_some() {
4432 return None;
4433 }
4434
4435 let provider = self.semantics_provider.clone()?;
4436 let buffer = self.buffer.read(cx);
4437 let newest_selection = self.selections.newest_anchor().clone();
4438 let cursor_position = newest_selection.head();
4439 let (cursor_buffer, cursor_buffer_position) =
4440 buffer.text_anchor_for_position(cursor_position, cx)?;
4441 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4442 if cursor_buffer != tail_buffer {
4443 return None;
4444 }
4445 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4446 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4447 cx.background_executor()
4448 .timer(Duration::from_millis(debounce))
4449 .await;
4450
4451 let highlights = if let Some(highlights) = cx
4452 .update(|cx| {
4453 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4454 })
4455 .ok()
4456 .flatten()
4457 {
4458 highlights.await.log_err()
4459 } else {
4460 None
4461 };
4462
4463 if let Some(highlights) = highlights {
4464 this.update(&mut cx, |this, cx| {
4465 if this.pending_rename.is_some() {
4466 return;
4467 }
4468
4469 let buffer_id = cursor_position.buffer_id;
4470 let buffer = this.buffer.read(cx);
4471 if !buffer
4472 .text_anchor_for_position(cursor_position, cx)
4473 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4474 {
4475 return;
4476 }
4477
4478 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4479 let mut write_ranges = Vec::new();
4480 let mut read_ranges = Vec::new();
4481 for highlight in highlights {
4482 for (excerpt_id, excerpt_range) in
4483 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4484 {
4485 let start = highlight
4486 .range
4487 .start
4488 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4489 let end = highlight
4490 .range
4491 .end
4492 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4493 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4494 continue;
4495 }
4496
4497 let range = Anchor {
4498 buffer_id,
4499 excerpt_id,
4500 text_anchor: start,
4501 }..Anchor {
4502 buffer_id,
4503 excerpt_id,
4504 text_anchor: end,
4505 };
4506 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4507 write_ranges.push(range);
4508 } else {
4509 read_ranges.push(range);
4510 }
4511 }
4512 }
4513
4514 this.highlight_background::<DocumentHighlightRead>(
4515 &read_ranges,
4516 |theme| theme.editor_document_highlight_read_background,
4517 cx,
4518 );
4519 this.highlight_background::<DocumentHighlightWrite>(
4520 &write_ranges,
4521 |theme| theme.editor_document_highlight_write_background,
4522 cx,
4523 );
4524 cx.notify();
4525 })
4526 .log_err();
4527 }
4528 }));
4529 None
4530 }
4531
4532 pub fn refresh_inline_completion(
4533 &mut self,
4534 debounce: bool,
4535 user_requested: bool,
4536 cx: &mut ViewContext<Self>,
4537 ) -> Option<()> {
4538 let provider = self.inline_completion_provider()?;
4539 let cursor = self.selections.newest_anchor().head();
4540 let (buffer, cursor_buffer_position) =
4541 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4542
4543 if !user_requested
4544 && (!self.enable_inline_completions
4545 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4546 || !self.is_focused(cx)
4547 || buffer.read(cx).is_empty())
4548 {
4549 self.discard_inline_completion(false, cx);
4550 return None;
4551 }
4552
4553 self.update_visible_inline_completion(cx);
4554 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4555 Some(())
4556 }
4557
4558 fn cycle_inline_completion(
4559 &mut self,
4560 direction: Direction,
4561 cx: &mut ViewContext<Self>,
4562 ) -> Option<()> {
4563 let provider = self.inline_completion_provider()?;
4564 let cursor = self.selections.newest_anchor().head();
4565 let (buffer, cursor_buffer_position) =
4566 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4567 if !self.enable_inline_completions
4568 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4569 {
4570 return None;
4571 }
4572
4573 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4574 self.update_visible_inline_completion(cx);
4575
4576 Some(())
4577 }
4578
4579 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4580 if !self.has_active_inline_completion() {
4581 self.refresh_inline_completion(false, true, cx);
4582 return;
4583 }
4584
4585 self.update_visible_inline_completion(cx);
4586 }
4587
4588 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4589 self.show_cursor_names(cx);
4590 }
4591
4592 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4593 self.show_cursor_names = true;
4594 cx.notify();
4595 cx.spawn(|this, mut cx| async move {
4596 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4597 this.update(&mut cx, |this, cx| {
4598 this.show_cursor_names = false;
4599 cx.notify()
4600 })
4601 .ok()
4602 })
4603 .detach();
4604 }
4605
4606 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4607 if self.has_active_inline_completion() {
4608 self.cycle_inline_completion(Direction::Next, cx);
4609 } else {
4610 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4611 if is_copilot_disabled {
4612 cx.propagate();
4613 }
4614 }
4615 }
4616
4617 pub fn previous_inline_completion(
4618 &mut self,
4619 _: &PreviousInlineCompletion,
4620 cx: &mut ViewContext<Self>,
4621 ) {
4622 if self.has_active_inline_completion() {
4623 self.cycle_inline_completion(Direction::Prev, cx);
4624 } else {
4625 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4626 if is_copilot_disabled {
4627 cx.propagate();
4628 }
4629 }
4630 }
4631
4632 pub fn accept_inline_completion(
4633 &mut self,
4634 _: &AcceptInlineCompletion,
4635 cx: &mut ViewContext<Self>,
4636 ) {
4637 let buffer = self.buffer.read(cx);
4638 let snapshot = buffer.snapshot(cx);
4639 let selection = self.selections.newest_adjusted(cx);
4640 let cursor = selection.head();
4641 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
4642 let suggested_indents = snapshot.suggested_indents([cursor.row], cx);
4643 if let Some(suggested_indent) = suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
4644 {
4645 if cursor.column < suggested_indent.len
4646 && cursor.column <= current_indent.len
4647 && current_indent.len <= suggested_indent.len
4648 {
4649 self.tab(&Default::default(), cx);
4650 return;
4651 }
4652 }
4653
4654 if self.show_inline_completions_in_menu(cx) {
4655 self.hide_context_menu(cx);
4656 }
4657
4658 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4659 return;
4660 };
4661
4662 self.report_inline_completion_event(true, cx);
4663
4664 match &active_inline_completion.completion {
4665 InlineCompletion::Move(position) => {
4666 let position = *position;
4667 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4668 selections.select_anchor_ranges([position..position]);
4669 });
4670 }
4671 InlineCompletion::Edit(edits) => {
4672 if let Some(provider) = self.inline_completion_provider() {
4673 provider.accept(cx);
4674 }
4675
4676 let snapshot = self.buffer.read(cx).snapshot(cx);
4677 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4678
4679 self.buffer.update(cx, |buffer, cx| {
4680 buffer.edit(edits.iter().cloned(), None, cx)
4681 });
4682
4683 self.change_selections(None, cx, |s| {
4684 s.select_anchor_ranges([last_edit_end..last_edit_end])
4685 });
4686
4687 self.update_visible_inline_completion(cx);
4688 if self.active_inline_completion.is_none() {
4689 self.refresh_inline_completion(true, true, cx);
4690 }
4691
4692 cx.notify();
4693 }
4694 }
4695 }
4696
4697 pub fn accept_partial_inline_completion(
4698 &mut self,
4699 _: &AcceptPartialInlineCompletion,
4700 cx: &mut ViewContext<Self>,
4701 ) {
4702 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4703 return;
4704 };
4705 if self.selections.count() != 1 {
4706 return;
4707 }
4708
4709 self.report_inline_completion_event(true, cx);
4710
4711 match &active_inline_completion.completion {
4712 InlineCompletion::Move(position) => {
4713 let position = *position;
4714 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4715 selections.select_anchor_ranges([position..position]);
4716 });
4717 }
4718 InlineCompletion::Edit(edits) => {
4719 // Find an insertion that starts at the cursor position.
4720 let snapshot = self.buffer.read(cx).snapshot(cx);
4721 let cursor_offset = self.selections.newest::<usize>(cx).head();
4722 let insertion = edits.iter().find_map(|(range, text)| {
4723 let range = range.to_offset(&snapshot);
4724 if range.is_empty() && range.start == cursor_offset {
4725 Some(text)
4726 } else {
4727 None
4728 }
4729 });
4730
4731 if let Some(text) = insertion {
4732 let mut partial_completion = text
4733 .chars()
4734 .by_ref()
4735 .take_while(|c| c.is_alphabetic())
4736 .collect::<String>();
4737 if partial_completion.is_empty() {
4738 partial_completion = text
4739 .chars()
4740 .by_ref()
4741 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4742 .collect::<String>();
4743 }
4744
4745 cx.emit(EditorEvent::InputHandled {
4746 utf16_range_to_replace: None,
4747 text: partial_completion.clone().into(),
4748 });
4749
4750 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4751
4752 self.refresh_inline_completion(true, true, cx);
4753 cx.notify();
4754 } else {
4755 self.accept_inline_completion(&Default::default(), cx);
4756 }
4757 }
4758 }
4759 }
4760
4761 fn discard_inline_completion(
4762 &mut self,
4763 should_report_inline_completion_event: bool,
4764 cx: &mut ViewContext<Self>,
4765 ) -> bool {
4766 if should_report_inline_completion_event {
4767 self.report_inline_completion_event(false, cx);
4768 }
4769
4770 if let Some(provider) = self.inline_completion_provider() {
4771 provider.discard(cx);
4772 }
4773
4774 self.take_active_inline_completion(cx).is_some()
4775 }
4776
4777 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4778 let Some(provider) = self.inline_completion_provider() else {
4779 return;
4780 };
4781
4782 let Some((_, buffer, _)) = self
4783 .buffer
4784 .read(cx)
4785 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4786 else {
4787 return;
4788 };
4789
4790 let extension = buffer
4791 .read(cx)
4792 .file()
4793 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4794
4795 let event_type = match accepted {
4796 true => "Inline Completion Accepted",
4797 false => "Inline Completion Discarded",
4798 };
4799 telemetry::event!(
4800 event_type,
4801 provider = provider.name(),
4802 suggestion_accepted = accepted,
4803 file_extension = extension,
4804 );
4805 }
4806
4807 pub fn has_active_inline_completion(&self) -> bool {
4808 self.active_inline_completion.is_some()
4809 }
4810
4811 fn take_active_inline_completion(
4812 &mut self,
4813 cx: &mut ViewContext<Self>,
4814 ) -> Option<InlineCompletion> {
4815 let active_inline_completion = self.active_inline_completion.take()?;
4816 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4817 self.clear_highlights::<InlineCompletionHighlight>(cx);
4818 Some(active_inline_completion.completion)
4819 }
4820
4821 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4822 let selection = self.selections.newest_anchor();
4823 let cursor = selection.head();
4824 let multibuffer = self.buffer.read(cx).snapshot(cx);
4825 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4826 let excerpt_id = cursor.excerpt_id;
4827
4828 let completions_menu_has_precedence = !self.show_inline_completions_in_menu(cx)
4829 && (self.context_menu.borrow().is_some()
4830 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion()));
4831 if completions_menu_has_precedence
4832 || !offset_selection.is_empty()
4833 || !self.enable_inline_completions
4834 || self
4835 .active_inline_completion
4836 .as_ref()
4837 .map_or(false, |completion| {
4838 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4839 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4840 !invalidation_range.contains(&offset_selection.head())
4841 })
4842 {
4843 self.discard_inline_completion(false, cx);
4844 return None;
4845 }
4846
4847 self.take_active_inline_completion(cx);
4848 let provider = self.inline_completion_provider()?;
4849
4850 let (buffer, cursor_buffer_position) =
4851 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4852
4853 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4854 let edits = completion
4855 .edits
4856 .into_iter()
4857 .flat_map(|(range, new_text)| {
4858 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
4859 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
4860 Some((start..end, new_text))
4861 })
4862 .collect::<Vec<_>>();
4863 if edits.is_empty() {
4864 return None;
4865 }
4866
4867 let first_edit_start = edits.first().unwrap().0.start;
4868 let edit_start_row = first_edit_start
4869 .to_point(&multibuffer)
4870 .row
4871 .saturating_sub(2);
4872
4873 let last_edit_end = edits.last().unwrap().0.end;
4874 let edit_end_row = cmp::min(
4875 multibuffer.max_point().row,
4876 last_edit_end.to_point(&multibuffer).row + 2,
4877 );
4878
4879 let cursor_row = cursor.to_point(&multibuffer).row;
4880
4881 let mut inlay_ids = Vec::new();
4882 let invalidation_row_range;
4883 let completion;
4884 if cursor_row < edit_start_row {
4885 invalidation_row_range = cursor_row..edit_end_row;
4886 completion = InlineCompletion::Move(first_edit_start);
4887 } else if cursor_row > edit_end_row {
4888 invalidation_row_range = edit_start_row..cursor_row;
4889 completion = InlineCompletion::Move(first_edit_start);
4890 } else {
4891 if edits
4892 .iter()
4893 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4894 {
4895 let mut inlays = Vec::new();
4896 for (range, new_text) in &edits {
4897 let inlay = Inlay::inline_completion(
4898 post_inc(&mut self.next_inlay_id),
4899 range.start,
4900 new_text.as_str(),
4901 );
4902 inlay_ids.push(inlay.id);
4903 inlays.push(inlay);
4904 }
4905
4906 self.splice_inlays(vec![], inlays, cx);
4907 } else {
4908 let background_color = cx.theme().status().deleted_background;
4909 self.highlight_text::<InlineCompletionHighlight>(
4910 edits.iter().map(|(range, _)| range.clone()).collect(),
4911 HighlightStyle {
4912 background_color: Some(background_color),
4913 ..Default::default()
4914 },
4915 cx,
4916 );
4917 }
4918
4919 invalidation_row_range = edit_start_row..edit_end_row;
4920 completion = InlineCompletion::Edit(edits);
4921 };
4922
4923 let invalidation_range = multibuffer
4924 .anchor_before(Point::new(invalidation_row_range.start, 0))
4925 ..multibuffer.anchor_after(Point::new(
4926 invalidation_row_range.end,
4927 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4928 ));
4929
4930 self.active_inline_completion = Some(InlineCompletionState {
4931 inlay_ids,
4932 completion,
4933 invalidation_range,
4934 });
4935
4936 if self.show_inline_completions_in_menu(cx) && self.has_active_completions_menu() {
4937 if let Some(hint) = self.inline_completion_menu_hint(cx) {
4938 match self.context_menu.borrow_mut().as_mut() {
4939 Some(CodeContextMenu::Completions(menu)) => {
4940 menu.show_inline_completion_hint(hint);
4941 }
4942 _ => {}
4943 }
4944 }
4945 }
4946
4947 cx.notify();
4948
4949 Some(())
4950 }
4951
4952 fn inline_completion_menu_hint(
4953 &mut self,
4954 cx: &mut ViewContext<Self>,
4955 ) -> Option<InlineCompletionMenuHint> {
4956 let provider = self.inline_completion_provider()?;
4957 if self.has_active_inline_completion() {
4958 let editor_snapshot = self.snapshot(cx);
4959
4960 let text = match &self.active_inline_completion.as_ref()?.completion {
4961 InlineCompletion::Edit(edits) => {
4962 inline_completion_edit_text(&editor_snapshot, edits, true, cx)
4963 }
4964 InlineCompletion::Move(target) => {
4965 let target_point =
4966 target.to_point(&editor_snapshot.display_snapshot.buffer_snapshot);
4967 let target_line = target_point.row + 1;
4968 InlineCompletionText::Move(
4969 format!("Jump to edit in line {}", target_line).into(),
4970 )
4971 }
4972 };
4973
4974 Some(InlineCompletionMenuHint::Loaded { text })
4975 } else if provider.is_refreshing(cx) {
4976 Some(InlineCompletionMenuHint::Loading)
4977 } else {
4978 Some(InlineCompletionMenuHint::None)
4979 }
4980 }
4981
4982 pub fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4983 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4984 }
4985
4986 fn show_inline_completions_in_menu(&self, cx: &AppContext) -> bool {
4987 EditorSettings::get_global(cx).show_inline_completions_in_menu
4988 && self
4989 .inline_completion_provider()
4990 .map_or(false, |provider| provider.show_completions_in_menu())
4991 }
4992
4993 fn render_code_actions_indicator(
4994 &self,
4995 _style: &EditorStyle,
4996 row: DisplayRow,
4997 is_active: bool,
4998 cx: &mut ViewContext<Self>,
4999 ) -> Option<IconButton> {
5000 if self.available_code_actions.is_some() {
5001 Some(
5002 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5003 .shape(ui::IconButtonShape::Square)
5004 .icon_size(IconSize::XSmall)
5005 .icon_color(Color::Muted)
5006 .toggle_state(is_active)
5007 .tooltip({
5008 let focus_handle = self.focus_handle.clone();
5009 move |cx| {
5010 Tooltip::for_action_in(
5011 "Toggle Code Actions",
5012 &ToggleCodeActions {
5013 deployed_from_indicator: None,
5014 },
5015 &focus_handle,
5016 cx,
5017 )
5018 }
5019 })
5020 .on_click(cx.listener(move |editor, _e, cx| {
5021 editor.focus(cx);
5022 editor.toggle_code_actions(
5023 &ToggleCodeActions {
5024 deployed_from_indicator: Some(row),
5025 },
5026 cx,
5027 );
5028 })),
5029 )
5030 } else {
5031 None
5032 }
5033 }
5034
5035 fn clear_tasks(&mut self) {
5036 self.tasks.clear()
5037 }
5038
5039 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5040 if self.tasks.insert(key, value).is_some() {
5041 // This case should hopefully be rare, but just in case...
5042 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5043 }
5044 }
5045
5046 fn build_tasks_context(
5047 project: &Model<Project>,
5048 buffer: &Model<Buffer>,
5049 buffer_row: u32,
5050 tasks: &Arc<RunnableTasks>,
5051 cx: &mut ViewContext<Self>,
5052 ) -> Task<Option<task::TaskContext>> {
5053 let position = Point::new(buffer_row, tasks.column);
5054 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5055 let location = Location {
5056 buffer: buffer.clone(),
5057 range: range_start..range_start,
5058 };
5059 // Fill in the environmental variables from the tree-sitter captures
5060 let mut captured_task_variables = TaskVariables::default();
5061 for (capture_name, value) in tasks.extra_variables.clone() {
5062 captured_task_variables.insert(
5063 task::VariableName::Custom(capture_name.into()),
5064 value.clone(),
5065 );
5066 }
5067 project.update(cx, |project, cx| {
5068 project.task_store().update(cx, |task_store, cx| {
5069 task_store.task_context_for_location(captured_task_variables, location, cx)
5070 })
5071 })
5072 }
5073
5074 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5075 let Some((workspace, _)) = self.workspace.clone() else {
5076 return;
5077 };
5078 let Some(project) = self.project.clone() else {
5079 return;
5080 };
5081
5082 // Try to find a closest, enclosing node using tree-sitter that has a
5083 // task
5084 let Some((buffer, buffer_row, tasks)) = self
5085 .find_enclosing_node_task(cx)
5086 // Or find the task that's closest in row-distance.
5087 .or_else(|| self.find_closest_task(cx))
5088 else {
5089 return;
5090 };
5091
5092 let reveal_strategy = action.reveal;
5093 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5094 cx.spawn(|_, mut cx| async move {
5095 let context = task_context.await?;
5096 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5097
5098 let resolved = resolved_task.resolved.as_mut()?;
5099 resolved.reveal = reveal_strategy;
5100
5101 workspace
5102 .update(&mut cx, |workspace, cx| {
5103 workspace::tasks::schedule_resolved_task(
5104 workspace,
5105 task_source_kind,
5106 resolved_task,
5107 false,
5108 cx,
5109 );
5110 })
5111 .ok()
5112 })
5113 .detach();
5114 }
5115
5116 fn find_closest_task(
5117 &mut self,
5118 cx: &mut ViewContext<Self>,
5119 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5120 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5121
5122 let ((buffer_id, row), tasks) = self
5123 .tasks
5124 .iter()
5125 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5126
5127 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5128 let tasks = Arc::new(tasks.to_owned());
5129 Some((buffer, *row, tasks))
5130 }
5131
5132 fn find_enclosing_node_task(
5133 &mut self,
5134 cx: &mut ViewContext<Self>,
5135 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5136 let snapshot = self.buffer.read(cx).snapshot(cx);
5137 let offset = self.selections.newest::<usize>(cx).head();
5138 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5139 let buffer_id = excerpt.buffer().remote_id();
5140
5141 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5142 let mut cursor = layer.node().walk();
5143
5144 while cursor.goto_first_child_for_byte(offset).is_some() {
5145 if cursor.node().end_byte() == offset {
5146 cursor.goto_next_sibling();
5147 }
5148 }
5149
5150 // Ascend to the smallest ancestor that contains the range and has a task.
5151 loop {
5152 let node = cursor.node();
5153 let node_range = node.byte_range();
5154 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5155
5156 // Check if this node contains our offset
5157 if node_range.start <= offset && node_range.end >= offset {
5158 // If it contains offset, check for task
5159 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5160 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5161 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5162 }
5163 }
5164
5165 if !cursor.goto_parent() {
5166 break;
5167 }
5168 }
5169 None
5170 }
5171
5172 fn render_run_indicator(
5173 &self,
5174 _style: &EditorStyle,
5175 is_active: bool,
5176 row: DisplayRow,
5177 cx: &mut ViewContext<Self>,
5178 ) -> IconButton {
5179 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5180 .shape(ui::IconButtonShape::Square)
5181 .icon_size(IconSize::XSmall)
5182 .icon_color(Color::Muted)
5183 .toggle_state(is_active)
5184 .on_click(cx.listener(move |editor, _e, cx| {
5185 editor.focus(cx);
5186 editor.toggle_code_actions(
5187 &ToggleCodeActions {
5188 deployed_from_indicator: Some(row),
5189 },
5190 cx,
5191 );
5192 }))
5193 }
5194
5195 #[cfg(any(feature = "test-support", test))]
5196 pub fn context_menu_visible(&self) -> bool {
5197 self.context_menu
5198 .borrow()
5199 .as_ref()
5200 .map_or(false, |menu| menu.visible())
5201 }
5202
5203 #[cfg(feature = "test-support")]
5204 pub fn context_menu_contains_inline_completion(&self) -> bool {
5205 self.context_menu
5206 .borrow()
5207 .as_ref()
5208 .map_or(false, |menu| match menu {
5209 CodeContextMenu::Completions(menu) => {
5210 menu.entries.borrow().first().map_or(false, |entry| {
5211 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5212 })
5213 }
5214 CodeContextMenu::CodeActions(_) => false,
5215 })
5216 }
5217
5218 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5219 self.context_menu
5220 .borrow()
5221 .as_ref()
5222 .map(|menu| menu.origin(cursor_position))
5223 }
5224
5225 fn render_context_menu(
5226 &self,
5227 style: &EditorStyle,
5228 max_height_in_lines: u32,
5229 cx: &mut ViewContext<Editor>,
5230 ) -> Option<AnyElement> {
5231 self.context_menu.borrow().as_ref().and_then(|menu| {
5232 if menu.visible() {
5233 Some(menu.render(style, max_height_in_lines, cx))
5234 } else {
5235 None
5236 }
5237 })
5238 }
5239
5240 fn render_context_menu_aside(
5241 &self,
5242 style: &EditorStyle,
5243 max_size: Size<Pixels>,
5244 cx: &mut ViewContext<Editor>,
5245 ) -> Option<AnyElement> {
5246 self.context_menu.borrow().as_ref().and_then(|menu| {
5247 if menu.visible() {
5248 menu.render_aside(
5249 style,
5250 max_size,
5251 self.workspace.as_ref().map(|(w, _)| w.clone()),
5252 cx,
5253 )
5254 } else {
5255 None
5256 }
5257 })
5258 }
5259
5260 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5261 cx.notify();
5262 self.completion_tasks.clear();
5263 let context_menu = self.context_menu.borrow_mut().take();
5264 if context_menu.is_some() && !self.show_inline_completions_in_menu(cx) {
5265 self.update_visible_inline_completion(cx);
5266 }
5267 context_menu
5268 }
5269
5270 fn show_snippet_choices(
5271 &mut self,
5272 choices: &Vec<String>,
5273 selection: Range<Anchor>,
5274 cx: &mut ViewContext<Self>,
5275 ) {
5276 if selection.start.buffer_id.is_none() {
5277 return;
5278 }
5279 let buffer_id = selection.start.buffer_id.unwrap();
5280 let buffer = self.buffer().read(cx).buffer(buffer_id);
5281 let id = post_inc(&mut self.next_completion_id);
5282
5283 if let Some(buffer) = buffer {
5284 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5285 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5286 ));
5287 }
5288 }
5289
5290 pub fn insert_snippet(
5291 &mut self,
5292 insertion_ranges: &[Range<usize>],
5293 snippet: Snippet,
5294 cx: &mut ViewContext<Self>,
5295 ) -> Result<()> {
5296 struct Tabstop<T> {
5297 is_end_tabstop: bool,
5298 ranges: Vec<Range<T>>,
5299 choices: Option<Vec<String>>,
5300 }
5301
5302 let tabstops = self.buffer.update(cx, |buffer, cx| {
5303 let snippet_text: Arc<str> = snippet.text.clone().into();
5304 buffer.edit(
5305 insertion_ranges
5306 .iter()
5307 .cloned()
5308 .map(|range| (range, snippet_text.clone())),
5309 Some(AutoindentMode::EachLine),
5310 cx,
5311 );
5312
5313 let snapshot = &*buffer.read(cx);
5314 let snippet = &snippet;
5315 snippet
5316 .tabstops
5317 .iter()
5318 .map(|tabstop| {
5319 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5320 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5321 });
5322 let mut tabstop_ranges = tabstop
5323 .ranges
5324 .iter()
5325 .flat_map(|tabstop_range| {
5326 let mut delta = 0_isize;
5327 insertion_ranges.iter().map(move |insertion_range| {
5328 let insertion_start = insertion_range.start as isize + delta;
5329 delta +=
5330 snippet.text.len() as isize - insertion_range.len() as isize;
5331
5332 let start = ((insertion_start + tabstop_range.start) as usize)
5333 .min(snapshot.len());
5334 let end = ((insertion_start + tabstop_range.end) as usize)
5335 .min(snapshot.len());
5336 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5337 })
5338 })
5339 .collect::<Vec<_>>();
5340 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5341
5342 Tabstop {
5343 is_end_tabstop,
5344 ranges: tabstop_ranges,
5345 choices: tabstop.choices.clone(),
5346 }
5347 })
5348 .collect::<Vec<_>>()
5349 });
5350 if let Some(tabstop) = tabstops.first() {
5351 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5352 s.select_ranges(tabstop.ranges.iter().cloned());
5353 });
5354
5355 if let Some(choices) = &tabstop.choices {
5356 if let Some(selection) = tabstop.ranges.first() {
5357 self.show_snippet_choices(choices, selection.clone(), cx)
5358 }
5359 }
5360
5361 // If we're already at the last tabstop and it's at the end of the snippet,
5362 // we're done, we don't need to keep the state around.
5363 if !tabstop.is_end_tabstop {
5364 let choices = tabstops
5365 .iter()
5366 .map(|tabstop| tabstop.choices.clone())
5367 .collect();
5368
5369 let ranges = tabstops
5370 .into_iter()
5371 .map(|tabstop| tabstop.ranges)
5372 .collect::<Vec<_>>();
5373
5374 self.snippet_stack.push(SnippetState {
5375 active_index: 0,
5376 ranges,
5377 choices,
5378 });
5379 }
5380
5381 // Check whether the just-entered snippet ends with an auto-closable bracket.
5382 if self.autoclose_regions.is_empty() {
5383 let snapshot = self.buffer.read(cx).snapshot(cx);
5384 for selection in &mut self.selections.all::<Point>(cx) {
5385 let selection_head = selection.head();
5386 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5387 continue;
5388 };
5389
5390 let mut bracket_pair = None;
5391 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5392 let prev_chars = snapshot
5393 .reversed_chars_at(selection_head)
5394 .collect::<String>();
5395 for (pair, enabled) in scope.brackets() {
5396 if enabled
5397 && pair.close
5398 && prev_chars.starts_with(pair.start.as_str())
5399 && next_chars.starts_with(pair.end.as_str())
5400 {
5401 bracket_pair = Some(pair.clone());
5402 break;
5403 }
5404 }
5405 if let Some(pair) = bracket_pair {
5406 let start = snapshot.anchor_after(selection_head);
5407 let end = snapshot.anchor_after(selection_head);
5408 self.autoclose_regions.push(AutocloseRegion {
5409 selection_id: selection.id,
5410 range: start..end,
5411 pair,
5412 });
5413 }
5414 }
5415 }
5416 }
5417 Ok(())
5418 }
5419
5420 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5421 self.move_to_snippet_tabstop(Bias::Right, cx)
5422 }
5423
5424 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5425 self.move_to_snippet_tabstop(Bias::Left, cx)
5426 }
5427
5428 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5429 if let Some(mut snippet) = self.snippet_stack.pop() {
5430 match bias {
5431 Bias::Left => {
5432 if snippet.active_index > 0 {
5433 snippet.active_index -= 1;
5434 } else {
5435 self.snippet_stack.push(snippet);
5436 return false;
5437 }
5438 }
5439 Bias::Right => {
5440 if snippet.active_index + 1 < snippet.ranges.len() {
5441 snippet.active_index += 1;
5442 } else {
5443 self.snippet_stack.push(snippet);
5444 return false;
5445 }
5446 }
5447 }
5448 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5449 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5450 s.select_anchor_ranges(current_ranges.iter().cloned())
5451 });
5452
5453 if let Some(choices) = &snippet.choices[snippet.active_index] {
5454 if let Some(selection) = current_ranges.first() {
5455 self.show_snippet_choices(&choices, selection.clone(), cx);
5456 }
5457 }
5458
5459 // If snippet state is not at the last tabstop, push it back on the stack
5460 if snippet.active_index + 1 < snippet.ranges.len() {
5461 self.snippet_stack.push(snippet);
5462 }
5463 return true;
5464 }
5465 }
5466
5467 false
5468 }
5469
5470 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5471 self.transact(cx, |this, cx| {
5472 this.select_all(&SelectAll, cx);
5473 this.insert("", cx);
5474 });
5475 }
5476
5477 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5478 self.transact(cx, |this, cx| {
5479 this.select_autoclose_pair(cx);
5480 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5481 if !this.linked_edit_ranges.is_empty() {
5482 let selections = this.selections.all::<MultiBufferPoint>(cx);
5483 let snapshot = this.buffer.read(cx).snapshot(cx);
5484
5485 for selection in selections.iter() {
5486 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5487 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5488 if selection_start.buffer_id != selection_end.buffer_id {
5489 continue;
5490 }
5491 if let Some(ranges) =
5492 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5493 {
5494 for (buffer, entries) in ranges {
5495 linked_ranges.entry(buffer).or_default().extend(entries);
5496 }
5497 }
5498 }
5499 }
5500
5501 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5502 if !this.selections.line_mode {
5503 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5504 for selection in &mut selections {
5505 if selection.is_empty() {
5506 let old_head = selection.head();
5507 let mut new_head =
5508 movement::left(&display_map, old_head.to_display_point(&display_map))
5509 .to_point(&display_map);
5510 if let Some((buffer, line_buffer_range)) = display_map
5511 .buffer_snapshot
5512 .buffer_line_for_row(MultiBufferRow(old_head.row))
5513 {
5514 let indent_size =
5515 buffer.indent_size_for_line(line_buffer_range.start.row);
5516 let indent_len = match indent_size.kind {
5517 IndentKind::Space => {
5518 buffer.settings_at(line_buffer_range.start, cx).tab_size
5519 }
5520 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5521 };
5522 if old_head.column <= indent_size.len && old_head.column > 0 {
5523 let indent_len = indent_len.get();
5524 new_head = cmp::min(
5525 new_head,
5526 MultiBufferPoint::new(
5527 old_head.row,
5528 ((old_head.column - 1) / indent_len) * indent_len,
5529 ),
5530 );
5531 }
5532 }
5533
5534 selection.set_head(new_head, SelectionGoal::None);
5535 }
5536 }
5537 }
5538
5539 this.signature_help_state.set_backspace_pressed(true);
5540 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5541 this.insert("", cx);
5542 let empty_str: Arc<str> = Arc::from("");
5543 for (buffer, edits) in linked_ranges {
5544 let snapshot = buffer.read(cx).snapshot();
5545 use text::ToPoint as TP;
5546
5547 let edits = edits
5548 .into_iter()
5549 .map(|range| {
5550 let end_point = TP::to_point(&range.end, &snapshot);
5551 let mut start_point = TP::to_point(&range.start, &snapshot);
5552
5553 if end_point == start_point {
5554 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5555 .saturating_sub(1);
5556 start_point =
5557 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5558 };
5559
5560 (start_point..end_point, empty_str.clone())
5561 })
5562 .sorted_by_key(|(range, _)| range.start)
5563 .collect::<Vec<_>>();
5564 buffer.update(cx, |this, cx| {
5565 this.edit(edits, None, cx);
5566 })
5567 }
5568 this.refresh_inline_completion(true, false, cx);
5569 linked_editing_ranges::refresh_linked_ranges(this, cx);
5570 });
5571 }
5572
5573 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5574 self.transact(cx, |this, cx| {
5575 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5576 let line_mode = s.line_mode;
5577 s.move_with(|map, selection| {
5578 if selection.is_empty() && !line_mode {
5579 let cursor = movement::right(map, selection.head());
5580 selection.end = cursor;
5581 selection.reversed = true;
5582 selection.goal = SelectionGoal::None;
5583 }
5584 })
5585 });
5586 this.insert("", cx);
5587 this.refresh_inline_completion(true, false, cx);
5588 });
5589 }
5590
5591 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5592 if self.move_to_prev_snippet_tabstop(cx) {
5593 return;
5594 }
5595
5596 self.outdent(&Outdent, cx);
5597 }
5598
5599 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5600 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5601 return;
5602 }
5603
5604 let mut selections = self.selections.all_adjusted(cx);
5605 let buffer = self.buffer.read(cx);
5606 let snapshot = buffer.snapshot(cx);
5607 let rows_iter = selections.iter().map(|s| s.head().row);
5608 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5609
5610 let mut edits = Vec::new();
5611 let mut prev_edited_row = 0;
5612 let mut row_delta = 0;
5613 for selection in &mut selections {
5614 if selection.start.row != prev_edited_row {
5615 row_delta = 0;
5616 }
5617 prev_edited_row = selection.end.row;
5618
5619 // If the selection is non-empty, then increase the indentation of the selected lines.
5620 if !selection.is_empty() {
5621 row_delta =
5622 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5623 continue;
5624 }
5625
5626 // If the selection is empty and the cursor is in the leading whitespace before the
5627 // suggested indentation, then auto-indent the line.
5628 let cursor = selection.head();
5629 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5630 if let Some(suggested_indent) =
5631 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5632 {
5633 if cursor.column < suggested_indent.len
5634 && cursor.column <= current_indent.len
5635 && current_indent.len <= suggested_indent.len
5636 {
5637 selection.start = Point::new(cursor.row, suggested_indent.len);
5638 selection.end = selection.start;
5639 if row_delta == 0 {
5640 edits.extend(Buffer::edit_for_indent_size_adjustment(
5641 cursor.row,
5642 current_indent,
5643 suggested_indent,
5644 ));
5645 row_delta = suggested_indent.len - current_indent.len;
5646 }
5647 continue;
5648 }
5649 }
5650
5651 // Otherwise, insert a hard or soft tab.
5652 let settings = buffer.settings_at(cursor, cx);
5653 let tab_size = if settings.hard_tabs {
5654 IndentSize::tab()
5655 } else {
5656 let tab_size = settings.tab_size.get();
5657 let char_column = snapshot
5658 .text_for_range(Point::new(cursor.row, 0)..cursor)
5659 .flat_map(str::chars)
5660 .count()
5661 + row_delta as usize;
5662 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5663 IndentSize::spaces(chars_to_next_tab_stop)
5664 };
5665 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5666 selection.end = selection.start;
5667 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5668 row_delta += tab_size.len;
5669 }
5670
5671 self.transact(cx, |this, cx| {
5672 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5673 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5674 this.refresh_inline_completion(true, false, cx);
5675 });
5676 }
5677
5678 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5679 if self.read_only(cx) {
5680 return;
5681 }
5682 let mut selections = self.selections.all::<Point>(cx);
5683 let mut prev_edited_row = 0;
5684 let mut row_delta = 0;
5685 let mut edits = Vec::new();
5686 let buffer = self.buffer.read(cx);
5687 let snapshot = buffer.snapshot(cx);
5688 for selection in &mut selections {
5689 if selection.start.row != prev_edited_row {
5690 row_delta = 0;
5691 }
5692 prev_edited_row = selection.end.row;
5693
5694 row_delta =
5695 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5696 }
5697
5698 self.transact(cx, |this, cx| {
5699 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5700 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5701 });
5702 }
5703
5704 fn indent_selection(
5705 buffer: &MultiBuffer,
5706 snapshot: &MultiBufferSnapshot,
5707 selection: &mut Selection<Point>,
5708 edits: &mut Vec<(Range<Point>, String)>,
5709 delta_for_start_row: u32,
5710 cx: &AppContext,
5711 ) -> u32 {
5712 let settings = buffer.settings_at(selection.start, cx);
5713 let tab_size = settings.tab_size.get();
5714 let indent_kind = if settings.hard_tabs {
5715 IndentKind::Tab
5716 } else {
5717 IndentKind::Space
5718 };
5719 let mut start_row = selection.start.row;
5720 let mut end_row = selection.end.row + 1;
5721
5722 // If a selection ends at the beginning of a line, don't indent
5723 // that last line.
5724 if selection.end.column == 0 && selection.end.row > selection.start.row {
5725 end_row -= 1;
5726 }
5727
5728 // Avoid re-indenting a row that has already been indented by a
5729 // previous selection, but still update this selection's column
5730 // to reflect that indentation.
5731 if delta_for_start_row > 0 {
5732 start_row += 1;
5733 selection.start.column += delta_for_start_row;
5734 if selection.end.row == selection.start.row {
5735 selection.end.column += delta_for_start_row;
5736 }
5737 }
5738
5739 let mut delta_for_end_row = 0;
5740 let has_multiple_rows = start_row + 1 != end_row;
5741 for row in start_row..end_row {
5742 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5743 let indent_delta = match (current_indent.kind, indent_kind) {
5744 (IndentKind::Space, IndentKind::Space) => {
5745 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5746 IndentSize::spaces(columns_to_next_tab_stop)
5747 }
5748 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5749 (_, IndentKind::Tab) => IndentSize::tab(),
5750 };
5751
5752 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5753 0
5754 } else {
5755 selection.start.column
5756 };
5757 let row_start = Point::new(row, start);
5758 edits.push((
5759 row_start..row_start,
5760 indent_delta.chars().collect::<String>(),
5761 ));
5762
5763 // Update this selection's endpoints to reflect the indentation.
5764 if row == selection.start.row {
5765 selection.start.column += indent_delta.len;
5766 }
5767 if row == selection.end.row {
5768 selection.end.column += indent_delta.len;
5769 delta_for_end_row = indent_delta.len;
5770 }
5771 }
5772
5773 if selection.start.row == selection.end.row {
5774 delta_for_start_row + delta_for_end_row
5775 } else {
5776 delta_for_end_row
5777 }
5778 }
5779
5780 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5781 if self.read_only(cx) {
5782 return;
5783 }
5784 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5785 let selections = self.selections.all::<Point>(cx);
5786 let mut deletion_ranges = Vec::new();
5787 let mut last_outdent = None;
5788 {
5789 let buffer = self.buffer.read(cx);
5790 let snapshot = buffer.snapshot(cx);
5791 for selection in &selections {
5792 let settings = buffer.settings_at(selection.start, cx);
5793 let tab_size = settings.tab_size.get();
5794 let mut rows = selection.spanned_rows(false, &display_map);
5795
5796 // Avoid re-outdenting a row that has already been outdented by a
5797 // previous selection.
5798 if let Some(last_row) = last_outdent {
5799 if last_row == rows.start {
5800 rows.start = rows.start.next_row();
5801 }
5802 }
5803 let has_multiple_rows = rows.len() > 1;
5804 for row in rows.iter_rows() {
5805 let indent_size = snapshot.indent_size_for_line(row);
5806 if indent_size.len > 0 {
5807 let deletion_len = match indent_size.kind {
5808 IndentKind::Space => {
5809 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5810 if columns_to_prev_tab_stop == 0 {
5811 tab_size
5812 } else {
5813 columns_to_prev_tab_stop
5814 }
5815 }
5816 IndentKind::Tab => 1,
5817 };
5818 let start = if has_multiple_rows
5819 || deletion_len > selection.start.column
5820 || indent_size.len < selection.start.column
5821 {
5822 0
5823 } else {
5824 selection.start.column - deletion_len
5825 };
5826 deletion_ranges.push(
5827 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5828 );
5829 last_outdent = Some(row);
5830 }
5831 }
5832 }
5833 }
5834
5835 self.transact(cx, |this, cx| {
5836 this.buffer.update(cx, |buffer, cx| {
5837 let empty_str: Arc<str> = Arc::default();
5838 buffer.edit(
5839 deletion_ranges
5840 .into_iter()
5841 .map(|range| (range, empty_str.clone())),
5842 None,
5843 cx,
5844 );
5845 });
5846 let selections = this.selections.all::<usize>(cx);
5847 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5848 });
5849 }
5850
5851 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5852 if self.read_only(cx) {
5853 return;
5854 }
5855 let selections = self
5856 .selections
5857 .all::<usize>(cx)
5858 .into_iter()
5859 .map(|s| s.range());
5860
5861 self.transact(cx, |this, cx| {
5862 this.buffer.update(cx, |buffer, cx| {
5863 buffer.autoindent_ranges(selections, cx);
5864 });
5865 let selections = this.selections.all::<usize>(cx);
5866 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5867 });
5868 }
5869
5870 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5871 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5872 let selections = self.selections.all::<Point>(cx);
5873
5874 let mut new_cursors = Vec::new();
5875 let mut edit_ranges = Vec::new();
5876 let mut selections = selections.iter().peekable();
5877 while let Some(selection) = selections.next() {
5878 let mut rows = selection.spanned_rows(false, &display_map);
5879 let goal_display_column = selection.head().to_display_point(&display_map).column();
5880
5881 // Accumulate contiguous regions of rows that we want to delete.
5882 while let Some(next_selection) = selections.peek() {
5883 let next_rows = next_selection.spanned_rows(false, &display_map);
5884 if next_rows.start <= rows.end {
5885 rows.end = next_rows.end;
5886 selections.next().unwrap();
5887 } else {
5888 break;
5889 }
5890 }
5891
5892 let buffer = &display_map.buffer_snapshot;
5893 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5894 let edit_end;
5895 let cursor_buffer_row;
5896 if buffer.max_point().row >= rows.end.0 {
5897 // If there's a line after the range, delete the \n from the end of the row range
5898 // and position the cursor on the next line.
5899 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5900 cursor_buffer_row = rows.end;
5901 } else {
5902 // If there isn't a line after the range, delete the \n from the line before the
5903 // start of the row range and position the cursor there.
5904 edit_start = edit_start.saturating_sub(1);
5905 edit_end = buffer.len();
5906 cursor_buffer_row = rows.start.previous_row();
5907 }
5908
5909 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5910 *cursor.column_mut() =
5911 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5912
5913 new_cursors.push((
5914 selection.id,
5915 buffer.anchor_after(cursor.to_point(&display_map)),
5916 ));
5917 edit_ranges.push(edit_start..edit_end);
5918 }
5919
5920 self.transact(cx, |this, cx| {
5921 let buffer = this.buffer.update(cx, |buffer, cx| {
5922 let empty_str: Arc<str> = Arc::default();
5923 buffer.edit(
5924 edit_ranges
5925 .into_iter()
5926 .map(|range| (range, empty_str.clone())),
5927 None,
5928 cx,
5929 );
5930 buffer.snapshot(cx)
5931 });
5932 let new_selections = new_cursors
5933 .into_iter()
5934 .map(|(id, cursor)| {
5935 let cursor = cursor.to_point(&buffer);
5936 Selection {
5937 id,
5938 start: cursor,
5939 end: cursor,
5940 reversed: false,
5941 goal: SelectionGoal::None,
5942 }
5943 })
5944 .collect();
5945
5946 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5947 s.select(new_selections);
5948 });
5949 });
5950 }
5951
5952 pub fn join_lines_impl(&mut self, insert_whitespace: bool, cx: &mut ViewContext<Self>) {
5953 if self.read_only(cx) {
5954 return;
5955 }
5956 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5957 for selection in self.selections.all::<Point>(cx) {
5958 let start = MultiBufferRow(selection.start.row);
5959 // Treat single line selections as if they include the next line. Otherwise this action
5960 // would do nothing for single line selections individual cursors.
5961 let end = if selection.start.row == selection.end.row {
5962 MultiBufferRow(selection.start.row + 1)
5963 } else {
5964 MultiBufferRow(selection.end.row)
5965 };
5966
5967 if let Some(last_row_range) = row_ranges.last_mut() {
5968 if start <= last_row_range.end {
5969 last_row_range.end = end;
5970 continue;
5971 }
5972 }
5973 row_ranges.push(start..end);
5974 }
5975
5976 let snapshot = self.buffer.read(cx).snapshot(cx);
5977 let mut cursor_positions = Vec::new();
5978 for row_range in &row_ranges {
5979 let anchor = snapshot.anchor_before(Point::new(
5980 row_range.end.previous_row().0,
5981 snapshot.line_len(row_range.end.previous_row()),
5982 ));
5983 cursor_positions.push(anchor..anchor);
5984 }
5985
5986 self.transact(cx, |this, cx| {
5987 for row_range in row_ranges.into_iter().rev() {
5988 for row in row_range.iter_rows().rev() {
5989 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5990 let next_line_row = row.next_row();
5991 let indent = snapshot.indent_size_for_line(next_line_row);
5992 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5993
5994 let replace =
5995 if snapshot.line_len(next_line_row) > indent.len && insert_whitespace {
5996 " "
5997 } else {
5998 ""
5999 };
6000
6001 this.buffer.update(cx, |buffer, cx| {
6002 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6003 });
6004 }
6005 }
6006
6007 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6008 s.select_anchor_ranges(cursor_positions)
6009 });
6010 });
6011 }
6012
6013 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6014 self.join_lines_impl(true, cx);
6015 }
6016
6017 pub fn sort_lines_case_sensitive(
6018 &mut self,
6019 _: &SortLinesCaseSensitive,
6020 cx: &mut ViewContext<Self>,
6021 ) {
6022 self.manipulate_lines(cx, |lines| lines.sort())
6023 }
6024
6025 pub fn sort_lines_case_insensitive(
6026 &mut self,
6027 _: &SortLinesCaseInsensitive,
6028 cx: &mut ViewContext<Self>,
6029 ) {
6030 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6031 }
6032
6033 pub fn unique_lines_case_insensitive(
6034 &mut self,
6035 _: &UniqueLinesCaseInsensitive,
6036 cx: &mut ViewContext<Self>,
6037 ) {
6038 self.manipulate_lines(cx, |lines| {
6039 let mut seen = HashSet::default();
6040 lines.retain(|line| seen.insert(line.to_lowercase()));
6041 })
6042 }
6043
6044 pub fn unique_lines_case_sensitive(
6045 &mut self,
6046 _: &UniqueLinesCaseSensitive,
6047 cx: &mut ViewContext<Self>,
6048 ) {
6049 self.manipulate_lines(cx, |lines| {
6050 let mut seen = HashSet::default();
6051 lines.retain(|line| seen.insert(*line));
6052 })
6053 }
6054
6055 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6056 let mut revert_changes = HashMap::default();
6057 let snapshot = self.snapshot(cx);
6058 for hunk in hunks_for_ranges(
6059 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
6060 &snapshot,
6061 ) {
6062 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6063 }
6064 if !revert_changes.is_empty() {
6065 self.transact(cx, |editor, cx| {
6066 editor.revert(revert_changes, cx);
6067 });
6068 }
6069 }
6070
6071 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6072 let Some(project) = self.project.clone() else {
6073 return;
6074 };
6075 self.reload(project, cx).detach_and_notify_err(cx);
6076 }
6077
6078 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6079 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
6080 if !revert_changes.is_empty() {
6081 self.transact(cx, |editor, cx| {
6082 editor.revert(revert_changes, cx);
6083 });
6084 }
6085 }
6086
6087 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
6088 let snapshot = self.buffer.read(cx).read(cx);
6089 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
6090 drop(snapshot);
6091 let mut revert_changes = HashMap::default();
6092 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6093 if !revert_changes.is_empty() {
6094 self.revert(revert_changes, cx)
6095 }
6096 }
6097 }
6098
6099 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6100 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6101 let project_path = buffer.read(cx).project_path(cx)?;
6102 let project = self.project.as_ref()?.read(cx);
6103 let entry = project.entry_for_path(&project_path, cx)?;
6104 let parent = match &entry.canonical_path {
6105 Some(canonical_path) => canonical_path.to_path_buf(),
6106 None => project.absolute_path(&project_path, cx)?,
6107 }
6108 .parent()?
6109 .to_path_buf();
6110 Some(parent)
6111 }) {
6112 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6113 }
6114 }
6115
6116 fn gather_revert_changes(
6117 &mut self,
6118 selections: &[Selection<Point>],
6119 cx: &mut ViewContext<Editor>,
6120 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6121 let mut revert_changes = HashMap::default();
6122 let snapshot = self.snapshot(cx);
6123 for hunk in hunks_for_selections(&snapshot, selections) {
6124 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6125 }
6126 revert_changes
6127 }
6128
6129 pub fn prepare_revert_change(
6130 &mut self,
6131 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6132 hunk: &MultiBufferDiffHunk,
6133 cx: &AppContext,
6134 ) -> Option<()> {
6135 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6136 let buffer = buffer.read(cx);
6137 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6138 let original_text = change_set
6139 .read(cx)
6140 .base_text
6141 .as_ref()?
6142 .read(cx)
6143 .as_rope()
6144 .slice(hunk.diff_base_byte_range.clone());
6145 let buffer_snapshot = buffer.snapshot();
6146 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6147 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6148 probe
6149 .0
6150 .start
6151 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6152 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6153 }) {
6154 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6155 Some(())
6156 } else {
6157 None
6158 }
6159 }
6160
6161 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6162 self.manipulate_lines(cx, |lines| lines.reverse())
6163 }
6164
6165 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6166 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6167 }
6168
6169 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6170 where
6171 Fn: FnMut(&mut Vec<&str>),
6172 {
6173 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6174 let buffer = self.buffer.read(cx).snapshot(cx);
6175
6176 let mut edits = Vec::new();
6177
6178 let selections = self.selections.all::<Point>(cx);
6179 let mut selections = selections.iter().peekable();
6180 let mut contiguous_row_selections = Vec::new();
6181 let mut new_selections = Vec::new();
6182 let mut added_lines = 0;
6183 let mut removed_lines = 0;
6184
6185 while let Some(selection) = selections.next() {
6186 let (start_row, end_row) = consume_contiguous_rows(
6187 &mut contiguous_row_selections,
6188 selection,
6189 &display_map,
6190 &mut selections,
6191 );
6192
6193 let start_point = Point::new(start_row.0, 0);
6194 let end_point = Point::new(
6195 end_row.previous_row().0,
6196 buffer.line_len(end_row.previous_row()),
6197 );
6198 let text = buffer
6199 .text_for_range(start_point..end_point)
6200 .collect::<String>();
6201
6202 let mut lines = text.split('\n').collect_vec();
6203
6204 let lines_before = lines.len();
6205 callback(&mut lines);
6206 let lines_after = lines.len();
6207
6208 edits.push((start_point..end_point, lines.join("\n")));
6209
6210 // Selections must change based on added and removed line count
6211 let start_row =
6212 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6213 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6214 new_selections.push(Selection {
6215 id: selection.id,
6216 start: start_row,
6217 end: end_row,
6218 goal: SelectionGoal::None,
6219 reversed: selection.reversed,
6220 });
6221
6222 if lines_after > lines_before {
6223 added_lines += lines_after - lines_before;
6224 } else if lines_before > lines_after {
6225 removed_lines += lines_before - lines_after;
6226 }
6227 }
6228
6229 self.transact(cx, |this, cx| {
6230 let buffer = this.buffer.update(cx, |buffer, cx| {
6231 buffer.edit(edits, None, cx);
6232 buffer.snapshot(cx)
6233 });
6234
6235 // Recalculate offsets on newly edited buffer
6236 let new_selections = new_selections
6237 .iter()
6238 .map(|s| {
6239 let start_point = Point::new(s.start.0, 0);
6240 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6241 Selection {
6242 id: s.id,
6243 start: buffer.point_to_offset(start_point),
6244 end: buffer.point_to_offset(end_point),
6245 goal: s.goal,
6246 reversed: s.reversed,
6247 }
6248 })
6249 .collect();
6250
6251 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6252 s.select(new_selections);
6253 });
6254
6255 this.request_autoscroll(Autoscroll::fit(), cx);
6256 });
6257 }
6258
6259 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6260 self.manipulate_text(cx, |text| text.to_uppercase())
6261 }
6262
6263 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6264 self.manipulate_text(cx, |text| text.to_lowercase())
6265 }
6266
6267 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6268 self.manipulate_text(cx, |text| {
6269 text.split('\n')
6270 .map(|line| line.to_case(Case::Title))
6271 .join("\n")
6272 })
6273 }
6274
6275 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6276 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6277 }
6278
6279 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6280 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6281 }
6282
6283 pub fn convert_to_upper_camel_case(
6284 &mut self,
6285 _: &ConvertToUpperCamelCase,
6286 cx: &mut ViewContext<Self>,
6287 ) {
6288 self.manipulate_text(cx, |text| {
6289 text.split('\n')
6290 .map(|line| line.to_case(Case::UpperCamel))
6291 .join("\n")
6292 })
6293 }
6294
6295 pub fn convert_to_lower_camel_case(
6296 &mut self,
6297 _: &ConvertToLowerCamelCase,
6298 cx: &mut ViewContext<Self>,
6299 ) {
6300 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6301 }
6302
6303 pub fn convert_to_opposite_case(
6304 &mut self,
6305 _: &ConvertToOppositeCase,
6306 cx: &mut ViewContext<Self>,
6307 ) {
6308 self.manipulate_text(cx, |text| {
6309 text.chars()
6310 .fold(String::with_capacity(text.len()), |mut t, c| {
6311 if c.is_uppercase() {
6312 t.extend(c.to_lowercase());
6313 } else {
6314 t.extend(c.to_uppercase());
6315 }
6316 t
6317 })
6318 })
6319 }
6320
6321 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6322 where
6323 Fn: FnMut(&str) -> String,
6324 {
6325 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6326 let buffer = self.buffer.read(cx).snapshot(cx);
6327
6328 let mut new_selections = Vec::new();
6329 let mut edits = Vec::new();
6330 let mut selection_adjustment = 0i32;
6331
6332 for selection in self.selections.all::<usize>(cx) {
6333 let selection_is_empty = selection.is_empty();
6334
6335 let (start, end) = if selection_is_empty {
6336 let word_range = movement::surrounding_word(
6337 &display_map,
6338 selection.start.to_display_point(&display_map),
6339 );
6340 let start = word_range.start.to_offset(&display_map, Bias::Left);
6341 let end = word_range.end.to_offset(&display_map, Bias::Left);
6342 (start, end)
6343 } else {
6344 (selection.start, selection.end)
6345 };
6346
6347 let text = buffer.text_for_range(start..end).collect::<String>();
6348 let old_length = text.len() as i32;
6349 let text = callback(&text);
6350
6351 new_selections.push(Selection {
6352 start: (start as i32 - selection_adjustment) as usize,
6353 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6354 goal: SelectionGoal::None,
6355 ..selection
6356 });
6357
6358 selection_adjustment += old_length - text.len() as i32;
6359
6360 edits.push((start..end, text));
6361 }
6362
6363 self.transact(cx, |this, cx| {
6364 this.buffer.update(cx, |buffer, cx| {
6365 buffer.edit(edits, None, cx);
6366 });
6367
6368 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6369 s.select(new_selections);
6370 });
6371
6372 this.request_autoscroll(Autoscroll::fit(), cx);
6373 });
6374 }
6375
6376 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6377 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6378 let buffer = &display_map.buffer_snapshot;
6379 let selections = self.selections.all::<Point>(cx);
6380
6381 let mut edits = Vec::new();
6382 let mut selections_iter = selections.iter().peekable();
6383 while let Some(selection) = selections_iter.next() {
6384 let mut rows = selection.spanned_rows(false, &display_map);
6385 // duplicate line-wise
6386 if whole_lines || selection.start == selection.end {
6387 // Avoid duplicating the same lines twice.
6388 while let Some(next_selection) = selections_iter.peek() {
6389 let next_rows = next_selection.spanned_rows(false, &display_map);
6390 if next_rows.start < rows.end {
6391 rows.end = next_rows.end;
6392 selections_iter.next().unwrap();
6393 } else {
6394 break;
6395 }
6396 }
6397
6398 // Copy the text from the selected row region and splice it either at the start
6399 // or end of the region.
6400 let start = Point::new(rows.start.0, 0);
6401 let end = Point::new(
6402 rows.end.previous_row().0,
6403 buffer.line_len(rows.end.previous_row()),
6404 );
6405 let text = buffer
6406 .text_for_range(start..end)
6407 .chain(Some("\n"))
6408 .collect::<String>();
6409 let insert_location = if upwards {
6410 Point::new(rows.end.0, 0)
6411 } else {
6412 start
6413 };
6414 edits.push((insert_location..insert_location, text));
6415 } else {
6416 // duplicate character-wise
6417 let start = selection.start;
6418 let end = selection.end;
6419 let text = buffer.text_for_range(start..end).collect::<String>();
6420 edits.push((selection.end..selection.end, text));
6421 }
6422 }
6423
6424 self.transact(cx, |this, cx| {
6425 this.buffer.update(cx, |buffer, cx| {
6426 buffer.edit(edits, None, cx);
6427 });
6428
6429 this.request_autoscroll(Autoscroll::fit(), cx);
6430 });
6431 }
6432
6433 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6434 self.duplicate(true, true, cx);
6435 }
6436
6437 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6438 self.duplicate(false, true, cx);
6439 }
6440
6441 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6442 self.duplicate(false, false, cx);
6443 }
6444
6445 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6446 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6447 let buffer = self.buffer.read(cx).snapshot(cx);
6448
6449 let mut edits = Vec::new();
6450 let mut unfold_ranges = Vec::new();
6451 let mut refold_creases = Vec::new();
6452
6453 let selections = self.selections.all::<Point>(cx);
6454 let mut selections = selections.iter().peekable();
6455 let mut contiguous_row_selections = Vec::new();
6456 let mut new_selections = Vec::new();
6457
6458 while let Some(selection) = selections.next() {
6459 // Find all the selections that span a contiguous row range
6460 let (start_row, end_row) = consume_contiguous_rows(
6461 &mut contiguous_row_selections,
6462 selection,
6463 &display_map,
6464 &mut selections,
6465 );
6466
6467 // Move the text spanned by the row range to be before the line preceding the row range
6468 if start_row.0 > 0 {
6469 let range_to_move = Point::new(
6470 start_row.previous_row().0,
6471 buffer.line_len(start_row.previous_row()),
6472 )
6473 ..Point::new(
6474 end_row.previous_row().0,
6475 buffer.line_len(end_row.previous_row()),
6476 );
6477 let insertion_point = display_map
6478 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6479 .0;
6480
6481 // Don't move lines across excerpts
6482 if buffer
6483 .excerpt_boundaries_in_range((
6484 Bound::Excluded(insertion_point),
6485 Bound::Included(range_to_move.end),
6486 ))
6487 .next()
6488 .is_none()
6489 {
6490 let text = buffer
6491 .text_for_range(range_to_move.clone())
6492 .flat_map(|s| s.chars())
6493 .skip(1)
6494 .chain(['\n'])
6495 .collect::<String>();
6496
6497 edits.push((
6498 buffer.anchor_after(range_to_move.start)
6499 ..buffer.anchor_before(range_to_move.end),
6500 String::new(),
6501 ));
6502 let insertion_anchor = buffer.anchor_after(insertion_point);
6503 edits.push((insertion_anchor..insertion_anchor, text));
6504
6505 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6506
6507 // Move selections up
6508 new_selections.extend(contiguous_row_selections.drain(..).map(
6509 |mut selection| {
6510 selection.start.row -= row_delta;
6511 selection.end.row -= row_delta;
6512 selection
6513 },
6514 ));
6515
6516 // Move folds up
6517 unfold_ranges.push(range_to_move.clone());
6518 for fold in display_map.folds_in_range(
6519 buffer.anchor_before(range_to_move.start)
6520 ..buffer.anchor_after(range_to_move.end),
6521 ) {
6522 let mut start = fold.range.start.to_point(&buffer);
6523 let mut end = fold.range.end.to_point(&buffer);
6524 start.row -= row_delta;
6525 end.row -= row_delta;
6526 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6527 }
6528 }
6529 }
6530
6531 // If we didn't move line(s), preserve the existing selections
6532 new_selections.append(&mut contiguous_row_selections);
6533 }
6534
6535 self.transact(cx, |this, cx| {
6536 this.unfold_ranges(&unfold_ranges, true, true, cx);
6537 this.buffer.update(cx, |buffer, cx| {
6538 for (range, text) in edits {
6539 buffer.edit([(range, text)], None, cx);
6540 }
6541 });
6542 this.fold_creases(refold_creases, true, cx);
6543 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6544 s.select(new_selections);
6545 })
6546 });
6547 }
6548
6549 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6550 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6551 let buffer = self.buffer.read(cx).snapshot(cx);
6552
6553 let mut edits = Vec::new();
6554 let mut unfold_ranges = Vec::new();
6555 let mut refold_creases = Vec::new();
6556
6557 let selections = self.selections.all::<Point>(cx);
6558 let mut selections = selections.iter().peekable();
6559 let mut contiguous_row_selections = Vec::new();
6560 let mut new_selections = Vec::new();
6561
6562 while let Some(selection) = selections.next() {
6563 // Find all the selections that span a contiguous row range
6564 let (start_row, end_row) = consume_contiguous_rows(
6565 &mut contiguous_row_selections,
6566 selection,
6567 &display_map,
6568 &mut selections,
6569 );
6570
6571 // Move the text spanned by the row range to be after the last line of the row range
6572 if end_row.0 <= buffer.max_point().row {
6573 let range_to_move =
6574 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6575 let insertion_point = display_map
6576 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6577 .0;
6578
6579 // Don't move lines across excerpt boundaries
6580 if buffer
6581 .excerpt_boundaries_in_range((
6582 Bound::Excluded(range_to_move.start),
6583 Bound::Included(insertion_point),
6584 ))
6585 .next()
6586 .is_none()
6587 {
6588 let mut text = String::from("\n");
6589 text.extend(buffer.text_for_range(range_to_move.clone()));
6590 text.pop(); // Drop trailing newline
6591 edits.push((
6592 buffer.anchor_after(range_to_move.start)
6593 ..buffer.anchor_before(range_to_move.end),
6594 String::new(),
6595 ));
6596 let insertion_anchor = buffer.anchor_after(insertion_point);
6597 edits.push((insertion_anchor..insertion_anchor, text));
6598
6599 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6600
6601 // Move selections down
6602 new_selections.extend(contiguous_row_selections.drain(..).map(
6603 |mut selection| {
6604 selection.start.row += row_delta;
6605 selection.end.row += row_delta;
6606 selection
6607 },
6608 ));
6609
6610 // Move folds down
6611 unfold_ranges.push(range_to_move.clone());
6612 for fold in display_map.folds_in_range(
6613 buffer.anchor_before(range_to_move.start)
6614 ..buffer.anchor_after(range_to_move.end),
6615 ) {
6616 let mut start = fold.range.start.to_point(&buffer);
6617 let mut end = fold.range.end.to_point(&buffer);
6618 start.row += row_delta;
6619 end.row += row_delta;
6620 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6621 }
6622 }
6623 }
6624
6625 // If we didn't move line(s), preserve the existing selections
6626 new_selections.append(&mut contiguous_row_selections);
6627 }
6628
6629 self.transact(cx, |this, cx| {
6630 this.unfold_ranges(&unfold_ranges, true, true, cx);
6631 this.buffer.update(cx, |buffer, cx| {
6632 for (range, text) in edits {
6633 buffer.edit([(range, text)], None, cx);
6634 }
6635 });
6636 this.fold_creases(refold_creases, true, cx);
6637 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6638 });
6639 }
6640
6641 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6642 let text_layout_details = &self.text_layout_details(cx);
6643 self.transact(cx, |this, cx| {
6644 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6645 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6646 let line_mode = s.line_mode;
6647 s.move_with(|display_map, selection| {
6648 if !selection.is_empty() || line_mode {
6649 return;
6650 }
6651
6652 let mut head = selection.head();
6653 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6654 if head.column() == display_map.line_len(head.row()) {
6655 transpose_offset = display_map
6656 .buffer_snapshot
6657 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6658 }
6659
6660 if transpose_offset == 0 {
6661 return;
6662 }
6663
6664 *head.column_mut() += 1;
6665 head = display_map.clip_point(head, Bias::Right);
6666 let goal = SelectionGoal::HorizontalPosition(
6667 display_map
6668 .x_for_display_point(head, text_layout_details)
6669 .into(),
6670 );
6671 selection.collapse_to(head, goal);
6672
6673 let transpose_start = display_map
6674 .buffer_snapshot
6675 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6676 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6677 let transpose_end = display_map
6678 .buffer_snapshot
6679 .clip_offset(transpose_offset + 1, Bias::Right);
6680 if let Some(ch) =
6681 display_map.buffer_snapshot.chars_at(transpose_start).next()
6682 {
6683 edits.push((transpose_start..transpose_offset, String::new()));
6684 edits.push((transpose_end..transpose_end, ch.to_string()));
6685 }
6686 }
6687 });
6688 edits
6689 });
6690 this.buffer
6691 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6692 let selections = this.selections.all::<usize>(cx);
6693 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6694 s.select(selections);
6695 });
6696 });
6697 }
6698
6699 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6700 self.rewrap_impl(IsVimMode::No, cx)
6701 }
6702
6703 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6704 let buffer = self.buffer.read(cx).snapshot(cx);
6705 let selections = self.selections.all::<Point>(cx);
6706 let mut selections = selections.iter().peekable();
6707
6708 let mut edits = Vec::new();
6709 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6710
6711 while let Some(selection) = selections.next() {
6712 let mut start_row = selection.start.row;
6713 let mut end_row = selection.end.row;
6714
6715 // Skip selections that overlap with a range that has already been rewrapped.
6716 let selection_range = start_row..end_row;
6717 if rewrapped_row_ranges
6718 .iter()
6719 .any(|range| range.overlaps(&selection_range))
6720 {
6721 continue;
6722 }
6723
6724 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6725
6726 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6727 match language_scope.language_name().0.as_ref() {
6728 "Markdown" | "Plain Text" => {
6729 should_rewrap = true;
6730 }
6731 _ => {}
6732 }
6733 }
6734
6735 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6736
6737 // Since not all lines in the selection may be at the same indent
6738 // level, choose the indent size that is the most common between all
6739 // of the lines.
6740 //
6741 // If there is a tie, we use the deepest indent.
6742 let (indent_size, indent_end) = {
6743 let mut indent_size_occurrences = HashMap::default();
6744 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6745
6746 for row in start_row..=end_row {
6747 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6748 rows_by_indent_size.entry(indent).or_default().push(row);
6749 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6750 }
6751
6752 let indent_size = indent_size_occurrences
6753 .into_iter()
6754 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6755 .map(|(indent, _)| indent)
6756 .unwrap_or_default();
6757 let row = rows_by_indent_size[&indent_size][0];
6758 let indent_end = Point::new(row, indent_size.len);
6759
6760 (indent_size, indent_end)
6761 };
6762
6763 let mut line_prefix = indent_size.chars().collect::<String>();
6764
6765 if let Some(comment_prefix) =
6766 buffer
6767 .language_scope_at(selection.head())
6768 .and_then(|language| {
6769 language
6770 .line_comment_prefixes()
6771 .iter()
6772 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6773 .cloned()
6774 })
6775 {
6776 line_prefix.push_str(&comment_prefix);
6777 should_rewrap = true;
6778 }
6779
6780 if !should_rewrap {
6781 continue;
6782 }
6783
6784 if selection.is_empty() {
6785 'expand_upwards: while start_row > 0 {
6786 let prev_row = start_row - 1;
6787 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6788 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6789 {
6790 start_row = prev_row;
6791 } else {
6792 break 'expand_upwards;
6793 }
6794 }
6795
6796 'expand_downwards: while end_row < buffer.max_point().row {
6797 let next_row = end_row + 1;
6798 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6799 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6800 {
6801 end_row = next_row;
6802 } else {
6803 break 'expand_downwards;
6804 }
6805 }
6806 }
6807
6808 let start = Point::new(start_row, 0);
6809 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6810 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6811 let Some(lines_without_prefixes) = selection_text
6812 .lines()
6813 .map(|line| {
6814 line.strip_prefix(&line_prefix)
6815 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6816 .ok_or_else(|| {
6817 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6818 })
6819 })
6820 .collect::<Result<Vec<_>, _>>()
6821 .log_err()
6822 else {
6823 continue;
6824 };
6825
6826 let wrap_column = buffer
6827 .settings_at(Point::new(start_row, 0), cx)
6828 .preferred_line_length as usize;
6829 let wrapped_text = wrap_with_prefix(
6830 line_prefix,
6831 lines_without_prefixes.join(" "),
6832 wrap_column,
6833 tab_size,
6834 );
6835
6836 // TODO: should always use char-based diff while still supporting cursor behavior that
6837 // matches vim.
6838 let diff = match is_vim_mode {
6839 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6840 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6841 };
6842 let mut offset = start.to_offset(&buffer);
6843 let mut moved_since_edit = true;
6844
6845 for change in diff.iter_all_changes() {
6846 let value = change.value();
6847 match change.tag() {
6848 ChangeTag::Equal => {
6849 offset += value.len();
6850 moved_since_edit = true;
6851 }
6852 ChangeTag::Delete => {
6853 let start = buffer.anchor_after(offset);
6854 let end = buffer.anchor_before(offset + value.len());
6855
6856 if moved_since_edit {
6857 edits.push((start..end, String::new()));
6858 } else {
6859 edits.last_mut().unwrap().0.end = end;
6860 }
6861
6862 offset += value.len();
6863 moved_since_edit = false;
6864 }
6865 ChangeTag::Insert => {
6866 if moved_since_edit {
6867 let anchor = buffer.anchor_after(offset);
6868 edits.push((anchor..anchor, value.to_string()));
6869 } else {
6870 edits.last_mut().unwrap().1.push_str(value);
6871 }
6872
6873 moved_since_edit = false;
6874 }
6875 }
6876 }
6877
6878 rewrapped_row_ranges.push(start_row..=end_row);
6879 }
6880
6881 self.buffer
6882 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6883 }
6884
6885 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6886 let mut text = String::new();
6887 let buffer = self.buffer.read(cx).snapshot(cx);
6888 let mut selections = self.selections.all::<Point>(cx);
6889 let mut clipboard_selections = Vec::with_capacity(selections.len());
6890 {
6891 let max_point = buffer.max_point();
6892 let mut is_first = true;
6893 for selection in &mut selections {
6894 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6895 if is_entire_line {
6896 selection.start = Point::new(selection.start.row, 0);
6897 if !selection.is_empty() && selection.end.column == 0 {
6898 selection.end = cmp::min(max_point, selection.end);
6899 } else {
6900 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6901 }
6902 selection.goal = SelectionGoal::None;
6903 }
6904 if is_first {
6905 is_first = false;
6906 } else {
6907 text += "\n";
6908 }
6909 let mut len = 0;
6910 for chunk in buffer.text_for_range(selection.start..selection.end) {
6911 text.push_str(chunk);
6912 len += chunk.len();
6913 }
6914 clipboard_selections.push(ClipboardSelection {
6915 len,
6916 is_entire_line,
6917 first_line_indent: buffer
6918 .indent_size_for_line(MultiBufferRow(selection.start.row))
6919 .len,
6920 });
6921 }
6922 }
6923
6924 self.transact(cx, |this, cx| {
6925 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6926 s.select(selections);
6927 });
6928 this.insert("", cx);
6929 });
6930 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6931 }
6932
6933 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6934 let item = self.cut_common(cx);
6935 cx.write_to_clipboard(item);
6936 }
6937
6938 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6939 self.change_selections(None, cx, |s| {
6940 s.move_with(|snapshot, sel| {
6941 if sel.is_empty() {
6942 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6943 }
6944 });
6945 });
6946 let item = self.cut_common(cx);
6947 cx.set_global(KillRing(item))
6948 }
6949
6950 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6951 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6952 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6953 (kill_ring.text().to_string(), kill_ring.metadata_json())
6954 } else {
6955 return;
6956 }
6957 } else {
6958 return;
6959 };
6960 self.do_paste(&text, metadata, false, cx);
6961 }
6962
6963 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6964 let selections = self.selections.all::<Point>(cx);
6965 let buffer = self.buffer.read(cx).read(cx);
6966 let mut text = String::new();
6967
6968 let mut clipboard_selections = Vec::with_capacity(selections.len());
6969 {
6970 let max_point = buffer.max_point();
6971 let mut is_first = true;
6972 for selection in selections.iter() {
6973 let mut start = selection.start;
6974 let mut end = selection.end;
6975 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6976 if is_entire_line {
6977 start = Point::new(start.row, 0);
6978 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6979 }
6980 if is_first {
6981 is_first = false;
6982 } else {
6983 text += "\n";
6984 }
6985 let mut len = 0;
6986 for chunk in buffer.text_for_range(start..end) {
6987 text.push_str(chunk);
6988 len += chunk.len();
6989 }
6990 clipboard_selections.push(ClipboardSelection {
6991 len,
6992 is_entire_line,
6993 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6994 });
6995 }
6996 }
6997
6998 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6999 text,
7000 clipboard_selections,
7001 ));
7002 }
7003
7004 pub fn do_paste(
7005 &mut self,
7006 text: &String,
7007 clipboard_selections: Option<Vec<ClipboardSelection>>,
7008 handle_entire_lines: bool,
7009 cx: &mut ViewContext<Self>,
7010 ) {
7011 if self.read_only(cx) {
7012 return;
7013 }
7014
7015 let clipboard_text = Cow::Borrowed(text);
7016
7017 self.transact(cx, |this, cx| {
7018 if let Some(mut clipboard_selections) = clipboard_selections {
7019 let old_selections = this.selections.all::<usize>(cx);
7020 let all_selections_were_entire_line =
7021 clipboard_selections.iter().all(|s| s.is_entire_line);
7022 let first_selection_indent_column =
7023 clipboard_selections.first().map(|s| s.first_line_indent);
7024 if clipboard_selections.len() != old_selections.len() {
7025 clipboard_selections.drain(..);
7026 }
7027 let cursor_offset = this.selections.last::<usize>(cx).head();
7028 let mut auto_indent_on_paste = true;
7029
7030 this.buffer.update(cx, |buffer, cx| {
7031 let snapshot = buffer.read(cx);
7032 auto_indent_on_paste =
7033 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7034
7035 let mut start_offset = 0;
7036 let mut edits = Vec::new();
7037 let mut original_indent_columns = Vec::new();
7038 for (ix, selection) in old_selections.iter().enumerate() {
7039 let to_insert;
7040 let entire_line;
7041 let original_indent_column;
7042 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7043 let end_offset = start_offset + clipboard_selection.len;
7044 to_insert = &clipboard_text[start_offset..end_offset];
7045 entire_line = clipboard_selection.is_entire_line;
7046 start_offset = end_offset + 1;
7047 original_indent_column = Some(clipboard_selection.first_line_indent);
7048 } else {
7049 to_insert = clipboard_text.as_str();
7050 entire_line = all_selections_were_entire_line;
7051 original_indent_column = first_selection_indent_column
7052 }
7053
7054 // If the corresponding selection was empty when this slice of the
7055 // clipboard text was written, then the entire line containing the
7056 // selection was copied. If this selection is also currently empty,
7057 // then paste the line before the current line of the buffer.
7058 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7059 let column = selection.start.to_point(&snapshot).column as usize;
7060 let line_start = selection.start - column;
7061 line_start..line_start
7062 } else {
7063 selection.range()
7064 };
7065
7066 edits.push((range, to_insert));
7067 original_indent_columns.extend(original_indent_column);
7068 }
7069 drop(snapshot);
7070
7071 buffer.edit(
7072 edits,
7073 if auto_indent_on_paste {
7074 Some(AutoindentMode::Block {
7075 original_indent_columns,
7076 })
7077 } else {
7078 None
7079 },
7080 cx,
7081 );
7082 });
7083
7084 let selections = this.selections.all::<usize>(cx);
7085 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7086 } else {
7087 this.insert(&clipboard_text, cx);
7088 }
7089 });
7090 }
7091
7092 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7093 if let Some(item) = cx.read_from_clipboard() {
7094 let entries = item.entries();
7095
7096 match entries.first() {
7097 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7098 // of all the pasted entries.
7099 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7100 .do_paste(
7101 clipboard_string.text(),
7102 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7103 true,
7104 cx,
7105 ),
7106 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7107 }
7108 }
7109 }
7110
7111 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7112 if self.read_only(cx) {
7113 return;
7114 }
7115
7116 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7117 if let Some((selections, _)) =
7118 self.selection_history.transaction(transaction_id).cloned()
7119 {
7120 self.change_selections(None, cx, |s| {
7121 s.select_anchors(selections.to_vec());
7122 });
7123 }
7124 self.request_autoscroll(Autoscroll::fit(), cx);
7125 self.unmark_text(cx);
7126 self.refresh_inline_completion(true, false, cx);
7127 cx.emit(EditorEvent::Edited { transaction_id });
7128 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7129 }
7130 }
7131
7132 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7133 if self.read_only(cx) {
7134 return;
7135 }
7136
7137 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7138 if let Some((_, Some(selections))) =
7139 self.selection_history.transaction(transaction_id).cloned()
7140 {
7141 self.change_selections(None, cx, |s| {
7142 s.select_anchors(selections.to_vec());
7143 });
7144 }
7145 self.request_autoscroll(Autoscroll::fit(), cx);
7146 self.unmark_text(cx);
7147 self.refresh_inline_completion(true, false, cx);
7148 cx.emit(EditorEvent::Edited { transaction_id });
7149 }
7150 }
7151
7152 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7153 self.buffer
7154 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7155 }
7156
7157 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7158 self.buffer
7159 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7160 }
7161
7162 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7163 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7164 let line_mode = s.line_mode;
7165 s.move_with(|map, selection| {
7166 let cursor = if selection.is_empty() && !line_mode {
7167 movement::left(map, selection.start)
7168 } else {
7169 selection.start
7170 };
7171 selection.collapse_to(cursor, SelectionGoal::None);
7172 });
7173 })
7174 }
7175
7176 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7177 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7178 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7179 })
7180 }
7181
7182 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7183 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7184 let line_mode = s.line_mode;
7185 s.move_with(|map, selection| {
7186 let cursor = if selection.is_empty() && !line_mode {
7187 movement::right(map, selection.end)
7188 } else {
7189 selection.end
7190 };
7191 selection.collapse_to(cursor, SelectionGoal::None)
7192 });
7193 })
7194 }
7195
7196 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7197 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7198 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7199 })
7200 }
7201
7202 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7203 if self.take_rename(true, cx).is_some() {
7204 return;
7205 }
7206
7207 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7208 cx.propagate();
7209 return;
7210 }
7211
7212 let text_layout_details = &self.text_layout_details(cx);
7213 let selection_count = self.selections.count();
7214 let first_selection = self.selections.first_anchor();
7215
7216 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7217 let line_mode = s.line_mode;
7218 s.move_with(|map, selection| {
7219 if !selection.is_empty() && !line_mode {
7220 selection.goal = SelectionGoal::None;
7221 }
7222 let (cursor, goal) = movement::up(
7223 map,
7224 selection.start,
7225 selection.goal,
7226 false,
7227 text_layout_details,
7228 );
7229 selection.collapse_to(cursor, goal);
7230 });
7231 });
7232
7233 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7234 {
7235 cx.propagate();
7236 }
7237 }
7238
7239 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7240 if self.take_rename(true, cx).is_some() {
7241 return;
7242 }
7243
7244 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7245 cx.propagate();
7246 return;
7247 }
7248
7249 let text_layout_details = &self.text_layout_details(cx);
7250
7251 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7252 let line_mode = s.line_mode;
7253 s.move_with(|map, selection| {
7254 if !selection.is_empty() && !line_mode {
7255 selection.goal = SelectionGoal::None;
7256 }
7257 let (cursor, goal) = movement::up_by_rows(
7258 map,
7259 selection.start,
7260 action.lines,
7261 selection.goal,
7262 false,
7263 text_layout_details,
7264 );
7265 selection.collapse_to(cursor, goal);
7266 });
7267 })
7268 }
7269
7270 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7271 if self.take_rename(true, cx).is_some() {
7272 return;
7273 }
7274
7275 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7276 cx.propagate();
7277 return;
7278 }
7279
7280 let text_layout_details = &self.text_layout_details(cx);
7281
7282 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7283 let line_mode = s.line_mode;
7284 s.move_with(|map, selection| {
7285 if !selection.is_empty() && !line_mode {
7286 selection.goal = SelectionGoal::None;
7287 }
7288 let (cursor, goal) = movement::down_by_rows(
7289 map,
7290 selection.start,
7291 action.lines,
7292 selection.goal,
7293 false,
7294 text_layout_details,
7295 );
7296 selection.collapse_to(cursor, goal);
7297 });
7298 })
7299 }
7300
7301 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7302 let text_layout_details = &self.text_layout_details(cx);
7303 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7304 s.move_heads_with(|map, head, goal| {
7305 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7306 })
7307 })
7308 }
7309
7310 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7311 let text_layout_details = &self.text_layout_details(cx);
7312 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7313 s.move_heads_with(|map, head, goal| {
7314 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7315 })
7316 })
7317 }
7318
7319 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7320 let Some(row_count) = self.visible_row_count() else {
7321 return;
7322 };
7323
7324 let text_layout_details = &self.text_layout_details(cx);
7325
7326 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7327 s.move_heads_with(|map, head, goal| {
7328 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7329 })
7330 })
7331 }
7332
7333 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7334 if self.take_rename(true, cx).is_some() {
7335 return;
7336 }
7337
7338 if self
7339 .context_menu
7340 .borrow_mut()
7341 .as_mut()
7342 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7343 .unwrap_or(false)
7344 {
7345 return;
7346 }
7347
7348 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7349 cx.propagate();
7350 return;
7351 }
7352
7353 let Some(row_count) = self.visible_row_count() else {
7354 return;
7355 };
7356
7357 let autoscroll = if action.center_cursor {
7358 Autoscroll::center()
7359 } else {
7360 Autoscroll::fit()
7361 };
7362
7363 let text_layout_details = &self.text_layout_details(cx);
7364
7365 self.change_selections(Some(autoscroll), cx, |s| {
7366 let line_mode = s.line_mode;
7367 s.move_with(|map, selection| {
7368 if !selection.is_empty() && !line_mode {
7369 selection.goal = SelectionGoal::None;
7370 }
7371 let (cursor, goal) = movement::up_by_rows(
7372 map,
7373 selection.end,
7374 row_count,
7375 selection.goal,
7376 false,
7377 text_layout_details,
7378 );
7379 selection.collapse_to(cursor, goal);
7380 });
7381 });
7382 }
7383
7384 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7385 let text_layout_details = &self.text_layout_details(cx);
7386 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7387 s.move_heads_with(|map, head, goal| {
7388 movement::up(map, head, goal, false, text_layout_details)
7389 })
7390 })
7391 }
7392
7393 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7394 self.take_rename(true, cx);
7395
7396 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7397 cx.propagate();
7398 return;
7399 }
7400
7401 let text_layout_details = &self.text_layout_details(cx);
7402 let selection_count = self.selections.count();
7403 let first_selection = self.selections.first_anchor();
7404
7405 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7406 let line_mode = s.line_mode;
7407 s.move_with(|map, selection| {
7408 if !selection.is_empty() && !line_mode {
7409 selection.goal = SelectionGoal::None;
7410 }
7411 let (cursor, goal) = movement::down(
7412 map,
7413 selection.end,
7414 selection.goal,
7415 false,
7416 text_layout_details,
7417 );
7418 selection.collapse_to(cursor, goal);
7419 });
7420 });
7421
7422 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7423 {
7424 cx.propagate();
7425 }
7426 }
7427
7428 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7429 let Some(row_count) = self.visible_row_count() else {
7430 return;
7431 };
7432
7433 let text_layout_details = &self.text_layout_details(cx);
7434
7435 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7436 s.move_heads_with(|map, head, goal| {
7437 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7438 })
7439 })
7440 }
7441
7442 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7443 if self.take_rename(true, cx).is_some() {
7444 return;
7445 }
7446
7447 if self
7448 .context_menu
7449 .borrow_mut()
7450 .as_mut()
7451 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7452 .unwrap_or(false)
7453 {
7454 return;
7455 }
7456
7457 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7458 cx.propagate();
7459 return;
7460 }
7461
7462 let Some(row_count) = self.visible_row_count() else {
7463 return;
7464 };
7465
7466 let autoscroll = if action.center_cursor {
7467 Autoscroll::center()
7468 } else {
7469 Autoscroll::fit()
7470 };
7471
7472 let text_layout_details = &self.text_layout_details(cx);
7473 self.change_selections(Some(autoscroll), cx, |s| {
7474 let line_mode = s.line_mode;
7475 s.move_with(|map, selection| {
7476 if !selection.is_empty() && !line_mode {
7477 selection.goal = SelectionGoal::None;
7478 }
7479 let (cursor, goal) = movement::down_by_rows(
7480 map,
7481 selection.end,
7482 row_count,
7483 selection.goal,
7484 false,
7485 text_layout_details,
7486 );
7487 selection.collapse_to(cursor, goal);
7488 });
7489 });
7490 }
7491
7492 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7493 let text_layout_details = &self.text_layout_details(cx);
7494 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7495 s.move_heads_with(|map, head, goal| {
7496 movement::down(map, head, goal, false, text_layout_details)
7497 })
7498 });
7499 }
7500
7501 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7502 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7503 context_menu.select_first(self.completion_provider.as_deref(), cx);
7504 }
7505 }
7506
7507 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7508 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7509 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7510 }
7511 }
7512
7513 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7514 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7515 context_menu.select_next(self.completion_provider.as_deref(), cx);
7516 }
7517 }
7518
7519 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7520 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7521 context_menu.select_last(self.completion_provider.as_deref(), cx);
7522 }
7523 }
7524
7525 pub fn move_to_previous_word_start(
7526 &mut self,
7527 _: &MoveToPreviousWordStart,
7528 cx: &mut ViewContext<Self>,
7529 ) {
7530 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7531 s.move_cursors_with(|map, head, _| {
7532 (
7533 movement::previous_word_start(map, head),
7534 SelectionGoal::None,
7535 )
7536 });
7537 })
7538 }
7539
7540 pub fn move_to_previous_subword_start(
7541 &mut self,
7542 _: &MoveToPreviousSubwordStart,
7543 cx: &mut ViewContext<Self>,
7544 ) {
7545 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7546 s.move_cursors_with(|map, head, _| {
7547 (
7548 movement::previous_subword_start(map, head),
7549 SelectionGoal::None,
7550 )
7551 });
7552 })
7553 }
7554
7555 pub fn select_to_previous_word_start(
7556 &mut self,
7557 _: &SelectToPreviousWordStart,
7558 cx: &mut ViewContext<Self>,
7559 ) {
7560 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7561 s.move_heads_with(|map, head, _| {
7562 (
7563 movement::previous_word_start(map, head),
7564 SelectionGoal::None,
7565 )
7566 });
7567 })
7568 }
7569
7570 pub fn select_to_previous_subword_start(
7571 &mut self,
7572 _: &SelectToPreviousSubwordStart,
7573 cx: &mut ViewContext<Self>,
7574 ) {
7575 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7576 s.move_heads_with(|map, head, _| {
7577 (
7578 movement::previous_subword_start(map, head),
7579 SelectionGoal::None,
7580 )
7581 });
7582 })
7583 }
7584
7585 pub fn delete_to_previous_word_start(
7586 &mut self,
7587 action: &DeleteToPreviousWordStart,
7588 cx: &mut ViewContext<Self>,
7589 ) {
7590 self.transact(cx, |this, cx| {
7591 this.select_autoclose_pair(cx);
7592 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7593 let line_mode = s.line_mode;
7594 s.move_with(|map, selection| {
7595 if selection.is_empty() && !line_mode {
7596 let cursor = if action.ignore_newlines {
7597 movement::previous_word_start(map, selection.head())
7598 } else {
7599 movement::previous_word_start_or_newline(map, selection.head())
7600 };
7601 selection.set_head(cursor, SelectionGoal::None);
7602 }
7603 });
7604 });
7605 this.insert("", cx);
7606 });
7607 }
7608
7609 pub fn delete_to_previous_subword_start(
7610 &mut self,
7611 _: &DeleteToPreviousSubwordStart,
7612 cx: &mut ViewContext<Self>,
7613 ) {
7614 self.transact(cx, |this, cx| {
7615 this.select_autoclose_pair(cx);
7616 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7617 let line_mode = s.line_mode;
7618 s.move_with(|map, selection| {
7619 if selection.is_empty() && !line_mode {
7620 let cursor = movement::previous_subword_start(map, selection.head());
7621 selection.set_head(cursor, SelectionGoal::None);
7622 }
7623 });
7624 });
7625 this.insert("", cx);
7626 });
7627 }
7628
7629 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7630 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7631 s.move_cursors_with(|map, head, _| {
7632 (movement::next_word_end(map, head), SelectionGoal::None)
7633 });
7634 })
7635 }
7636
7637 pub fn move_to_next_subword_end(
7638 &mut self,
7639 _: &MoveToNextSubwordEnd,
7640 cx: &mut ViewContext<Self>,
7641 ) {
7642 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7643 s.move_cursors_with(|map, head, _| {
7644 (movement::next_subword_end(map, head), SelectionGoal::None)
7645 });
7646 })
7647 }
7648
7649 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7650 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7651 s.move_heads_with(|map, head, _| {
7652 (movement::next_word_end(map, head), SelectionGoal::None)
7653 });
7654 })
7655 }
7656
7657 pub fn select_to_next_subword_end(
7658 &mut self,
7659 _: &SelectToNextSubwordEnd,
7660 cx: &mut ViewContext<Self>,
7661 ) {
7662 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7663 s.move_heads_with(|map, head, _| {
7664 (movement::next_subword_end(map, head), SelectionGoal::None)
7665 });
7666 })
7667 }
7668
7669 pub fn delete_to_next_word_end(
7670 &mut self,
7671 action: &DeleteToNextWordEnd,
7672 cx: &mut ViewContext<Self>,
7673 ) {
7674 self.transact(cx, |this, cx| {
7675 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7676 let line_mode = s.line_mode;
7677 s.move_with(|map, selection| {
7678 if selection.is_empty() && !line_mode {
7679 let cursor = if action.ignore_newlines {
7680 movement::next_word_end(map, selection.head())
7681 } else {
7682 movement::next_word_end_or_newline(map, selection.head())
7683 };
7684 selection.set_head(cursor, SelectionGoal::None);
7685 }
7686 });
7687 });
7688 this.insert("", cx);
7689 });
7690 }
7691
7692 pub fn delete_to_next_subword_end(
7693 &mut self,
7694 _: &DeleteToNextSubwordEnd,
7695 cx: &mut ViewContext<Self>,
7696 ) {
7697 self.transact(cx, |this, cx| {
7698 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7699 s.move_with(|map, selection| {
7700 if selection.is_empty() {
7701 let cursor = movement::next_subword_end(map, selection.head());
7702 selection.set_head(cursor, SelectionGoal::None);
7703 }
7704 });
7705 });
7706 this.insert("", cx);
7707 });
7708 }
7709
7710 pub fn move_to_beginning_of_line(
7711 &mut self,
7712 action: &MoveToBeginningOfLine,
7713 cx: &mut ViewContext<Self>,
7714 ) {
7715 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7716 s.move_cursors_with(|map, head, _| {
7717 (
7718 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7719 SelectionGoal::None,
7720 )
7721 });
7722 })
7723 }
7724
7725 pub fn select_to_beginning_of_line(
7726 &mut self,
7727 action: &SelectToBeginningOfLine,
7728 cx: &mut ViewContext<Self>,
7729 ) {
7730 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7731 s.move_heads_with(|map, head, _| {
7732 (
7733 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7734 SelectionGoal::None,
7735 )
7736 });
7737 });
7738 }
7739
7740 pub fn delete_to_beginning_of_line(
7741 &mut self,
7742 _: &DeleteToBeginningOfLine,
7743 cx: &mut ViewContext<Self>,
7744 ) {
7745 self.transact(cx, |this, cx| {
7746 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7747 s.move_with(|_, selection| {
7748 selection.reversed = true;
7749 });
7750 });
7751
7752 this.select_to_beginning_of_line(
7753 &SelectToBeginningOfLine {
7754 stop_at_soft_wraps: false,
7755 },
7756 cx,
7757 );
7758 this.backspace(&Backspace, cx);
7759 });
7760 }
7761
7762 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7763 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7764 s.move_cursors_with(|map, head, _| {
7765 (
7766 movement::line_end(map, head, action.stop_at_soft_wraps),
7767 SelectionGoal::None,
7768 )
7769 });
7770 })
7771 }
7772
7773 pub fn select_to_end_of_line(
7774 &mut self,
7775 action: &SelectToEndOfLine,
7776 cx: &mut ViewContext<Self>,
7777 ) {
7778 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7779 s.move_heads_with(|map, head, _| {
7780 (
7781 movement::line_end(map, head, action.stop_at_soft_wraps),
7782 SelectionGoal::None,
7783 )
7784 });
7785 })
7786 }
7787
7788 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7789 self.transact(cx, |this, cx| {
7790 this.select_to_end_of_line(
7791 &SelectToEndOfLine {
7792 stop_at_soft_wraps: false,
7793 },
7794 cx,
7795 );
7796 this.delete(&Delete, cx);
7797 });
7798 }
7799
7800 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7801 self.transact(cx, |this, cx| {
7802 this.select_to_end_of_line(
7803 &SelectToEndOfLine {
7804 stop_at_soft_wraps: false,
7805 },
7806 cx,
7807 );
7808 this.cut(&Cut, cx);
7809 });
7810 }
7811
7812 pub fn move_to_start_of_paragraph(
7813 &mut self,
7814 _: &MoveToStartOfParagraph,
7815 cx: &mut ViewContext<Self>,
7816 ) {
7817 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7818 cx.propagate();
7819 return;
7820 }
7821
7822 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7823 s.move_with(|map, selection| {
7824 selection.collapse_to(
7825 movement::start_of_paragraph(map, selection.head(), 1),
7826 SelectionGoal::None,
7827 )
7828 });
7829 })
7830 }
7831
7832 pub fn move_to_end_of_paragraph(
7833 &mut self,
7834 _: &MoveToEndOfParagraph,
7835 cx: &mut ViewContext<Self>,
7836 ) {
7837 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7838 cx.propagate();
7839 return;
7840 }
7841
7842 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7843 s.move_with(|map, selection| {
7844 selection.collapse_to(
7845 movement::end_of_paragraph(map, selection.head(), 1),
7846 SelectionGoal::None,
7847 )
7848 });
7849 })
7850 }
7851
7852 pub fn select_to_start_of_paragraph(
7853 &mut self,
7854 _: &SelectToStartOfParagraph,
7855 cx: &mut ViewContext<Self>,
7856 ) {
7857 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7858 cx.propagate();
7859 return;
7860 }
7861
7862 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7863 s.move_heads_with(|map, head, _| {
7864 (
7865 movement::start_of_paragraph(map, head, 1),
7866 SelectionGoal::None,
7867 )
7868 });
7869 })
7870 }
7871
7872 pub fn select_to_end_of_paragraph(
7873 &mut self,
7874 _: &SelectToEndOfParagraph,
7875 cx: &mut ViewContext<Self>,
7876 ) {
7877 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7878 cx.propagate();
7879 return;
7880 }
7881
7882 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7883 s.move_heads_with(|map, head, _| {
7884 (
7885 movement::end_of_paragraph(map, head, 1),
7886 SelectionGoal::None,
7887 )
7888 });
7889 })
7890 }
7891
7892 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7893 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7894 cx.propagate();
7895 return;
7896 }
7897
7898 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7899 s.select_ranges(vec![0..0]);
7900 });
7901 }
7902
7903 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7904 let mut selection = self.selections.last::<Point>(cx);
7905 selection.set_head(Point::zero(), SelectionGoal::None);
7906
7907 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7908 s.select(vec![selection]);
7909 });
7910 }
7911
7912 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7913 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7914 cx.propagate();
7915 return;
7916 }
7917
7918 let cursor = self.buffer.read(cx).read(cx).len();
7919 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7920 s.select_ranges(vec![cursor..cursor])
7921 });
7922 }
7923
7924 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7925 self.nav_history = nav_history;
7926 }
7927
7928 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7929 self.nav_history.as_ref()
7930 }
7931
7932 fn push_to_nav_history(
7933 &mut self,
7934 cursor_anchor: Anchor,
7935 new_position: Option<Point>,
7936 cx: &mut ViewContext<Self>,
7937 ) {
7938 if let Some(nav_history) = self.nav_history.as_mut() {
7939 let buffer = self.buffer.read(cx).read(cx);
7940 let cursor_position = cursor_anchor.to_point(&buffer);
7941 let scroll_state = self.scroll_manager.anchor();
7942 let scroll_top_row = scroll_state.top_row(&buffer);
7943 drop(buffer);
7944
7945 if let Some(new_position) = new_position {
7946 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7947 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7948 return;
7949 }
7950 }
7951
7952 nav_history.push(
7953 Some(NavigationData {
7954 cursor_anchor,
7955 cursor_position,
7956 scroll_anchor: scroll_state,
7957 scroll_top_row,
7958 }),
7959 cx,
7960 );
7961 }
7962 }
7963
7964 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7965 let buffer = self.buffer.read(cx).snapshot(cx);
7966 let mut selection = self.selections.first::<usize>(cx);
7967 selection.set_head(buffer.len(), SelectionGoal::None);
7968 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7969 s.select(vec![selection]);
7970 });
7971 }
7972
7973 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7974 let end = self.buffer.read(cx).read(cx).len();
7975 self.change_selections(None, cx, |s| {
7976 s.select_ranges(vec![0..end]);
7977 });
7978 }
7979
7980 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7981 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7982 let mut selections = self.selections.all::<Point>(cx);
7983 let max_point = display_map.buffer_snapshot.max_point();
7984 for selection in &mut selections {
7985 let rows = selection.spanned_rows(true, &display_map);
7986 selection.start = Point::new(rows.start.0, 0);
7987 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7988 selection.reversed = false;
7989 }
7990 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7991 s.select(selections);
7992 });
7993 }
7994
7995 pub fn split_selection_into_lines(
7996 &mut self,
7997 _: &SplitSelectionIntoLines,
7998 cx: &mut ViewContext<Self>,
7999 ) {
8000 let mut to_unfold = Vec::new();
8001 let mut new_selection_ranges = Vec::new();
8002 {
8003 let selections = self.selections.all::<Point>(cx);
8004 let buffer = self.buffer.read(cx).read(cx);
8005 for selection in selections {
8006 for row in selection.start.row..selection.end.row {
8007 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8008 new_selection_ranges.push(cursor..cursor);
8009 }
8010 new_selection_ranges.push(selection.end..selection.end);
8011 to_unfold.push(selection.start..selection.end);
8012 }
8013 }
8014 self.unfold_ranges(&to_unfold, true, true, cx);
8015 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8016 s.select_ranges(new_selection_ranges);
8017 });
8018 }
8019
8020 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8021 self.add_selection(true, cx);
8022 }
8023
8024 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8025 self.add_selection(false, cx);
8026 }
8027
8028 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8029 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8030 let mut selections = self.selections.all::<Point>(cx);
8031 let text_layout_details = self.text_layout_details(cx);
8032 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8033 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8034 let range = oldest_selection.display_range(&display_map).sorted();
8035
8036 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8037 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8038 let positions = start_x.min(end_x)..start_x.max(end_x);
8039
8040 selections.clear();
8041 let mut stack = Vec::new();
8042 for row in range.start.row().0..=range.end.row().0 {
8043 if let Some(selection) = self.selections.build_columnar_selection(
8044 &display_map,
8045 DisplayRow(row),
8046 &positions,
8047 oldest_selection.reversed,
8048 &text_layout_details,
8049 ) {
8050 stack.push(selection.id);
8051 selections.push(selection);
8052 }
8053 }
8054
8055 if above {
8056 stack.reverse();
8057 }
8058
8059 AddSelectionsState { above, stack }
8060 });
8061
8062 let last_added_selection = *state.stack.last().unwrap();
8063 let mut new_selections = Vec::new();
8064 if above == state.above {
8065 let end_row = if above {
8066 DisplayRow(0)
8067 } else {
8068 display_map.max_point().row()
8069 };
8070
8071 'outer: for selection in selections {
8072 if selection.id == last_added_selection {
8073 let range = selection.display_range(&display_map).sorted();
8074 debug_assert_eq!(range.start.row(), range.end.row());
8075 let mut row = range.start.row();
8076 let positions =
8077 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8078 px(start)..px(end)
8079 } else {
8080 let start_x =
8081 display_map.x_for_display_point(range.start, &text_layout_details);
8082 let end_x =
8083 display_map.x_for_display_point(range.end, &text_layout_details);
8084 start_x.min(end_x)..start_x.max(end_x)
8085 };
8086
8087 while row != end_row {
8088 if above {
8089 row.0 -= 1;
8090 } else {
8091 row.0 += 1;
8092 }
8093
8094 if let Some(new_selection) = self.selections.build_columnar_selection(
8095 &display_map,
8096 row,
8097 &positions,
8098 selection.reversed,
8099 &text_layout_details,
8100 ) {
8101 state.stack.push(new_selection.id);
8102 if above {
8103 new_selections.push(new_selection);
8104 new_selections.push(selection);
8105 } else {
8106 new_selections.push(selection);
8107 new_selections.push(new_selection);
8108 }
8109
8110 continue 'outer;
8111 }
8112 }
8113 }
8114
8115 new_selections.push(selection);
8116 }
8117 } else {
8118 new_selections = selections;
8119 new_selections.retain(|s| s.id != last_added_selection);
8120 state.stack.pop();
8121 }
8122
8123 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8124 s.select(new_selections);
8125 });
8126 if state.stack.len() > 1 {
8127 self.add_selections_state = Some(state);
8128 }
8129 }
8130
8131 pub fn select_next_match_internal(
8132 &mut self,
8133 display_map: &DisplaySnapshot,
8134 replace_newest: bool,
8135 autoscroll: Option<Autoscroll>,
8136 cx: &mut ViewContext<Self>,
8137 ) -> Result<()> {
8138 fn select_next_match_ranges(
8139 this: &mut Editor,
8140 range: Range<usize>,
8141 replace_newest: bool,
8142 auto_scroll: Option<Autoscroll>,
8143 cx: &mut ViewContext<Editor>,
8144 ) {
8145 this.unfold_ranges(&[range.clone()], false, true, cx);
8146 this.change_selections(auto_scroll, cx, |s| {
8147 if replace_newest {
8148 s.delete(s.newest_anchor().id);
8149 }
8150 s.insert_range(range.clone());
8151 });
8152 }
8153
8154 let buffer = &display_map.buffer_snapshot;
8155 let mut selections = self.selections.all::<usize>(cx);
8156 if let Some(mut select_next_state) = self.select_next_state.take() {
8157 let query = &select_next_state.query;
8158 if !select_next_state.done {
8159 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8160 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8161 let mut next_selected_range = None;
8162
8163 let bytes_after_last_selection =
8164 buffer.bytes_in_range(last_selection.end..buffer.len());
8165 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8166 let query_matches = query
8167 .stream_find_iter(bytes_after_last_selection)
8168 .map(|result| (last_selection.end, result))
8169 .chain(
8170 query
8171 .stream_find_iter(bytes_before_first_selection)
8172 .map(|result| (0, result)),
8173 );
8174
8175 for (start_offset, query_match) in query_matches {
8176 let query_match = query_match.unwrap(); // can only fail due to I/O
8177 let offset_range =
8178 start_offset + query_match.start()..start_offset + query_match.end();
8179 let display_range = offset_range.start.to_display_point(display_map)
8180 ..offset_range.end.to_display_point(display_map);
8181
8182 if !select_next_state.wordwise
8183 || (!movement::is_inside_word(display_map, display_range.start)
8184 && !movement::is_inside_word(display_map, display_range.end))
8185 {
8186 // TODO: This is n^2, because we might check all the selections
8187 if !selections
8188 .iter()
8189 .any(|selection| selection.range().overlaps(&offset_range))
8190 {
8191 next_selected_range = Some(offset_range);
8192 break;
8193 }
8194 }
8195 }
8196
8197 if let Some(next_selected_range) = next_selected_range {
8198 select_next_match_ranges(
8199 self,
8200 next_selected_range,
8201 replace_newest,
8202 autoscroll,
8203 cx,
8204 );
8205 } else {
8206 select_next_state.done = true;
8207 }
8208 }
8209
8210 self.select_next_state = Some(select_next_state);
8211 } else {
8212 let mut only_carets = true;
8213 let mut same_text_selected = true;
8214 let mut selected_text = None;
8215
8216 let mut selections_iter = selections.iter().peekable();
8217 while let Some(selection) = selections_iter.next() {
8218 if selection.start != selection.end {
8219 only_carets = false;
8220 }
8221
8222 if same_text_selected {
8223 if selected_text.is_none() {
8224 selected_text =
8225 Some(buffer.text_for_range(selection.range()).collect::<String>());
8226 }
8227
8228 if let Some(next_selection) = selections_iter.peek() {
8229 if next_selection.range().len() == selection.range().len() {
8230 let next_selected_text = buffer
8231 .text_for_range(next_selection.range())
8232 .collect::<String>();
8233 if Some(next_selected_text) != selected_text {
8234 same_text_selected = false;
8235 selected_text = None;
8236 }
8237 } else {
8238 same_text_selected = false;
8239 selected_text = None;
8240 }
8241 }
8242 }
8243 }
8244
8245 if only_carets {
8246 for selection in &mut selections {
8247 let word_range = movement::surrounding_word(
8248 display_map,
8249 selection.start.to_display_point(display_map),
8250 );
8251 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8252 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8253 selection.goal = SelectionGoal::None;
8254 selection.reversed = false;
8255 select_next_match_ranges(
8256 self,
8257 selection.start..selection.end,
8258 replace_newest,
8259 autoscroll,
8260 cx,
8261 );
8262 }
8263
8264 if selections.len() == 1 {
8265 let selection = selections
8266 .last()
8267 .expect("ensured that there's only one selection");
8268 let query = buffer
8269 .text_for_range(selection.start..selection.end)
8270 .collect::<String>();
8271 let is_empty = query.is_empty();
8272 let select_state = SelectNextState {
8273 query: AhoCorasick::new(&[query])?,
8274 wordwise: true,
8275 done: is_empty,
8276 };
8277 self.select_next_state = Some(select_state);
8278 } else {
8279 self.select_next_state = None;
8280 }
8281 } else if let Some(selected_text) = selected_text {
8282 self.select_next_state = Some(SelectNextState {
8283 query: AhoCorasick::new(&[selected_text])?,
8284 wordwise: false,
8285 done: false,
8286 });
8287 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8288 }
8289 }
8290 Ok(())
8291 }
8292
8293 pub fn select_all_matches(
8294 &mut self,
8295 _action: &SelectAllMatches,
8296 cx: &mut ViewContext<Self>,
8297 ) -> Result<()> {
8298 self.push_to_selection_history();
8299 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8300
8301 self.select_next_match_internal(&display_map, false, None, cx)?;
8302 let Some(select_next_state) = self.select_next_state.as_mut() else {
8303 return Ok(());
8304 };
8305 if select_next_state.done {
8306 return Ok(());
8307 }
8308
8309 let mut new_selections = self.selections.all::<usize>(cx);
8310
8311 let buffer = &display_map.buffer_snapshot;
8312 let query_matches = select_next_state
8313 .query
8314 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8315
8316 for query_match in query_matches {
8317 let query_match = query_match.unwrap(); // can only fail due to I/O
8318 let offset_range = query_match.start()..query_match.end();
8319 let display_range = offset_range.start.to_display_point(&display_map)
8320 ..offset_range.end.to_display_point(&display_map);
8321
8322 if !select_next_state.wordwise
8323 || (!movement::is_inside_word(&display_map, display_range.start)
8324 && !movement::is_inside_word(&display_map, display_range.end))
8325 {
8326 self.selections.change_with(cx, |selections| {
8327 new_selections.push(Selection {
8328 id: selections.new_selection_id(),
8329 start: offset_range.start,
8330 end: offset_range.end,
8331 reversed: false,
8332 goal: SelectionGoal::None,
8333 });
8334 });
8335 }
8336 }
8337
8338 new_selections.sort_by_key(|selection| selection.start);
8339 let mut ix = 0;
8340 while ix + 1 < new_selections.len() {
8341 let current_selection = &new_selections[ix];
8342 let next_selection = &new_selections[ix + 1];
8343 if current_selection.range().overlaps(&next_selection.range()) {
8344 if current_selection.id < next_selection.id {
8345 new_selections.remove(ix + 1);
8346 } else {
8347 new_selections.remove(ix);
8348 }
8349 } else {
8350 ix += 1;
8351 }
8352 }
8353
8354 select_next_state.done = true;
8355 self.unfold_ranges(
8356 &new_selections
8357 .iter()
8358 .map(|selection| selection.range())
8359 .collect::<Vec<_>>(),
8360 false,
8361 false,
8362 cx,
8363 );
8364 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8365 selections.select(new_selections)
8366 });
8367
8368 Ok(())
8369 }
8370
8371 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8372 self.push_to_selection_history();
8373 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8374 self.select_next_match_internal(
8375 &display_map,
8376 action.replace_newest,
8377 Some(Autoscroll::newest()),
8378 cx,
8379 )?;
8380 Ok(())
8381 }
8382
8383 pub fn select_previous(
8384 &mut self,
8385 action: &SelectPrevious,
8386 cx: &mut ViewContext<Self>,
8387 ) -> Result<()> {
8388 self.push_to_selection_history();
8389 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8390 let buffer = &display_map.buffer_snapshot;
8391 let mut selections = self.selections.all::<usize>(cx);
8392 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8393 let query = &select_prev_state.query;
8394 if !select_prev_state.done {
8395 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8396 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8397 let mut next_selected_range = None;
8398 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8399 let bytes_before_last_selection =
8400 buffer.reversed_bytes_in_range(0..last_selection.start);
8401 let bytes_after_first_selection =
8402 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8403 let query_matches = query
8404 .stream_find_iter(bytes_before_last_selection)
8405 .map(|result| (last_selection.start, result))
8406 .chain(
8407 query
8408 .stream_find_iter(bytes_after_first_selection)
8409 .map(|result| (buffer.len(), result)),
8410 );
8411 for (end_offset, query_match) in query_matches {
8412 let query_match = query_match.unwrap(); // can only fail due to I/O
8413 let offset_range =
8414 end_offset - query_match.end()..end_offset - query_match.start();
8415 let display_range = offset_range.start.to_display_point(&display_map)
8416 ..offset_range.end.to_display_point(&display_map);
8417
8418 if !select_prev_state.wordwise
8419 || (!movement::is_inside_word(&display_map, display_range.start)
8420 && !movement::is_inside_word(&display_map, display_range.end))
8421 {
8422 next_selected_range = Some(offset_range);
8423 break;
8424 }
8425 }
8426
8427 if let Some(next_selected_range) = next_selected_range {
8428 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8429 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8430 if action.replace_newest {
8431 s.delete(s.newest_anchor().id);
8432 }
8433 s.insert_range(next_selected_range);
8434 });
8435 } else {
8436 select_prev_state.done = true;
8437 }
8438 }
8439
8440 self.select_prev_state = Some(select_prev_state);
8441 } else {
8442 let mut only_carets = true;
8443 let mut same_text_selected = true;
8444 let mut selected_text = None;
8445
8446 let mut selections_iter = selections.iter().peekable();
8447 while let Some(selection) = selections_iter.next() {
8448 if selection.start != selection.end {
8449 only_carets = false;
8450 }
8451
8452 if same_text_selected {
8453 if selected_text.is_none() {
8454 selected_text =
8455 Some(buffer.text_for_range(selection.range()).collect::<String>());
8456 }
8457
8458 if let Some(next_selection) = selections_iter.peek() {
8459 if next_selection.range().len() == selection.range().len() {
8460 let next_selected_text = buffer
8461 .text_for_range(next_selection.range())
8462 .collect::<String>();
8463 if Some(next_selected_text) != selected_text {
8464 same_text_selected = false;
8465 selected_text = None;
8466 }
8467 } else {
8468 same_text_selected = false;
8469 selected_text = None;
8470 }
8471 }
8472 }
8473 }
8474
8475 if only_carets {
8476 for selection in &mut selections {
8477 let word_range = movement::surrounding_word(
8478 &display_map,
8479 selection.start.to_display_point(&display_map),
8480 );
8481 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8482 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8483 selection.goal = SelectionGoal::None;
8484 selection.reversed = false;
8485 }
8486 if selections.len() == 1 {
8487 let selection = selections
8488 .last()
8489 .expect("ensured that there's only one selection");
8490 let query = buffer
8491 .text_for_range(selection.start..selection.end)
8492 .collect::<String>();
8493 let is_empty = query.is_empty();
8494 let select_state = SelectNextState {
8495 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8496 wordwise: true,
8497 done: is_empty,
8498 };
8499 self.select_prev_state = Some(select_state);
8500 } else {
8501 self.select_prev_state = None;
8502 }
8503
8504 self.unfold_ranges(
8505 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8506 false,
8507 true,
8508 cx,
8509 );
8510 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8511 s.select(selections);
8512 });
8513 } else if let Some(selected_text) = selected_text {
8514 self.select_prev_state = Some(SelectNextState {
8515 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8516 wordwise: false,
8517 done: false,
8518 });
8519 self.select_previous(action, cx)?;
8520 }
8521 }
8522 Ok(())
8523 }
8524
8525 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8526 if self.read_only(cx) {
8527 return;
8528 }
8529 let text_layout_details = &self.text_layout_details(cx);
8530 self.transact(cx, |this, cx| {
8531 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8532 let mut edits = Vec::new();
8533 let mut selection_edit_ranges = Vec::new();
8534 let mut last_toggled_row = None;
8535 let snapshot = this.buffer.read(cx).read(cx);
8536 let empty_str: Arc<str> = Arc::default();
8537 let mut suffixes_inserted = Vec::new();
8538 let ignore_indent = action.ignore_indent;
8539
8540 fn comment_prefix_range(
8541 snapshot: &MultiBufferSnapshot,
8542 row: MultiBufferRow,
8543 comment_prefix: &str,
8544 comment_prefix_whitespace: &str,
8545 ignore_indent: bool,
8546 ) -> Range<Point> {
8547 let indent_size = if ignore_indent {
8548 0
8549 } else {
8550 snapshot.indent_size_for_line(row).len
8551 };
8552
8553 let start = Point::new(row.0, indent_size);
8554
8555 let mut line_bytes = snapshot
8556 .bytes_in_range(start..snapshot.max_point())
8557 .flatten()
8558 .copied();
8559
8560 // If this line currently begins with the line comment prefix, then record
8561 // the range containing the prefix.
8562 if line_bytes
8563 .by_ref()
8564 .take(comment_prefix.len())
8565 .eq(comment_prefix.bytes())
8566 {
8567 // Include any whitespace that matches the comment prefix.
8568 let matching_whitespace_len = line_bytes
8569 .zip(comment_prefix_whitespace.bytes())
8570 .take_while(|(a, b)| a == b)
8571 .count() as u32;
8572 let end = Point::new(
8573 start.row,
8574 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8575 );
8576 start..end
8577 } else {
8578 start..start
8579 }
8580 }
8581
8582 fn comment_suffix_range(
8583 snapshot: &MultiBufferSnapshot,
8584 row: MultiBufferRow,
8585 comment_suffix: &str,
8586 comment_suffix_has_leading_space: bool,
8587 ) -> Range<Point> {
8588 let end = Point::new(row.0, snapshot.line_len(row));
8589 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8590
8591 let mut line_end_bytes = snapshot
8592 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8593 .flatten()
8594 .copied();
8595
8596 let leading_space_len = if suffix_start_column > 0
8597 && line_end_bytes.next() == Some(b' ')
8598 && comment_suffix_has_leading_space
8599 {
8600 1
8601 } else {
8602 0
8603 };
8604
8605 // If this line currently begins with the line comment prefix, then record
8606 // the range containing the prefix.
8607 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8608 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8609 start..end
8610 } else {
8611 end..end
8612 }
8613 }
8614
8615 // TODO: Handle selections that cross excerpts
8616 for selection in &mut selections {
8617 let start_column = snapshot
8618 .indent_size_for_line(MultiBufferRow(selection.start.row))
8619 .len;
8620 let language = if let Some(language) =
8621 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8622 {
8623 language
8624 } else {
8625 continue;
8626 };
8627
8628 selection_edit_ranges.clear();
8629
8630 // If multiple selections contain a given row, avoid processing that
8631 // row more than once.
8632 let mut start_row = MultiBufferRow(selection.start.row);
8633 if last_toggled_row == Some(start_row) {
8634 start_row = start_row.next_row();
8635 }
8636 let end_row =
8637 if selection.end.row > selection.start.row && selection.end.column == 0 {
8638 MultiBufferRow(selection.end.row - 1)
8639 } else {
8640 MultiBufferRow(selection.end.row)
8641 };
8642 last_toggled_row = Some(end_row);
8643
8644 if start_row > end_row {
8645 continue;
8646 }
8647
8648 // If the language has line comments, toggle those.
8649 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8650
8651 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8652 if ignore_indent {
8653 full_comment_prefixes = full_comment_prefixes
8654 .into_iter()
8655 .map(|s| Arc::from(s.trim_end()))
8656 .collect();
8657 }
8658
8659 if !full_comment_prefixes.is_empty() {
8660 let first_prefix = full_comment_prefixes
8661 .first()
8662 .expect("prefixes is non-empty");
8663 let prefix_trimmed_lengths = full_comment_prefixes
8664 .iter()
8665 .map(|p| p.trim_end_matches(' ').len())
8666 .collect::<SmallVec<[usize; 4]>>();
8667
8668 let mut all_selection_lines_are_comments = true;
8669
8670 for row in start_row.0..=end_row.0 {
8671 let row = MultiBufferRow(row);
8672 if start_row < end_row && snapshot.is_line_blank(row) {
8673 continue;
8674 }
8675
8676 let prefix_range = full_comment_prefixes
8677 .iter()
8678 .zip(prefix_trimmed_lengths.iter().copied())
8679 .map(|(prefix, trimmed_prefix_len)| {
8680 comment_prefix_range(
8681 snapshot.deref(),
8682 row,
8683 &prefix[..trimmed_prefix_len],
8684 &prefix[trimmed_prefix_len..],
8685 ignore_indent,
8686 )
8687 })
8688 .max_by_key(|range| range.end.column - range.start.column)
8689 .expect("prefixes is non-empty");
8690
8691 if prefix_range.is_empty() {
8692 all_selection_lines_are_comments = false;
8693 }
8694
8695 selection_edit_ranges.push(prefix_range);
8696 }
8697
8698 if all_selection_lines_are_comments {
8699 edits.extend(
8700 selection_edit_ranges
8701 .iter()
8702 .cloned()
8703 .map(|range| (range, empty_str.clone())),
8704 );
8705 } else {
8706 let min_column = selection_edit_ranges
8707 .iter()
8708 .map(|range| range.start.column)
8709 .min()
8710 .unwrap_or(0);
8711 edits.extend(selection_edit_ranges.iter().map(|range| {
8712 let position = Point::new(range.start.row, min_column);
8713 (position..position, first_prefix.clone())
8714 }));
8715 }
8716 } else if let Some((full_comment_prefix, comment_suffix)) =
8717 language.block_comment_delimiters()
8718 {
8719 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8720 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8721 let prefix_range = comment_prefix_range(
8722 snapshot.deref(),
8723 start_row,
8724 comment_prefix,
8725 comment_prefix_whitespace,
8726 ignore_indent,
8727 );
8728 let suffix_range = comment_suffix_range(
8729 snapshot.deref(),
8730 end_row,
8731 comment_suffix.trim_start_matches(' '),
8732 comment_suffix.starts_with(' '),
8733 );
8734
8735 if prefix_range.is_empty() || suffix_range.is_empty() {
8736 edits.push((
8737 prefix_range.start..prefix_range.start,
8738 full_comment_prefix.clone(),
8739 ));
8740 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8741 suffixes_inserted.push((end_row, comment_suffix.len()));
8742 } else {
8743 edits.push((prefix_range, empty_str.clone()));
8744 edits.push((suffix_range, empty_str.clone()));
8745 }
8746 } else {
8747 continue;
8748 }
8749 }
8750
8751 drop(snapshot);
8752 this.buffer.update(cx, |buffer, cx| {
8753 buffer.edit(edits, None, cx);
8754 });
8755
8756 // Adjust selections so that they end before any comment suffixes that
8757 // were inserted.
8758 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8759 let mut selections = this.selections.all::<Point>(cx);
8760 let snapshot = this.buffer.read(cx).read(cx);
8761 for selection in &mut selections {
8762 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8763 match row.cmp(&MultiBufferRow(selection.end.row)) {
8764 Ordering::Less => {
8765 suffixes_inserted.next();
8766 continue;
8767 }
8768 Ordering::Greater => break,
8769 Ordering::Equal => {
8770 if selection.end.column == snapshot.line_len(row) {
8771 if selection.is_empty() {
8772 selection.start.column -= suffix_len as u32;
8773 }
8774 selection.end.column -= suffix_len as u32;
8775 }
8776 break;
8777 }
8778 }
8779 }
8780 }
8781
8782 drop(snapshot);
8783 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8784
8785 let selections = this.selections.all::<Point>(cx);
8786 let selections_on_single_row = selections.windows(2).all(|selections| {
8787 selections[0].start.row == selections[1].start.row
8788 && selections[0].end.row == selections[1].end.row
8789 && selections[0].start.row == selections[0].end.row
8790 });
8791 let selections_selecting = selections
8792 .iter()
8793 .any(|selection| selection.start != selection.end);
8794 let advance_downwards = action.advance_downwards
8795 && selections_on_single_row
8796 && !selections_selecting
8797 && !matches!(this.mode, EditorMode::SingleLine { .. });
8798
8799 if advance_downwards {
8800 let snapshot = this.buffer.read(cx).snapshot(cx);
8801
8802 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8803 s.move_cursors_with(|display_snapshot, display_point, _| {
8804 let mut point = display_point.to_point(display_snapshot);
8805 point.row += 1;
8806 point = snapshot.clip_point(point, Bias::Left);
8807 let display_point = point.to_display_point(display_snapshot);
8808 let goal = SelectionGoal::HorizontalPosition(
8809 display_snapshot
8810 .x_for_display_point(display_point, text_layout_details)
8811 .into(),
8812 );
8813 (display_point, goal)
8814 })
8815 });
8816 }
8817 });
8818 }
8819
8820 pub fn select_enclosing_symbol(
8821 &mut self,
8822 _: &SelectEnclosingSymbol,
8823 cx: &mut ViewContext<Self>,
8824 ) {
8825 let buffer = self.buffer.read(cx).snapshot(cx);
8826 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8827
8828 fn update_selection(
8829 selection: &Selection<usize>,
8830 buffer_snap: &MultiBufferSnapshot,
8831 ) -> Option<Selection<usize>> {
8832 let cursor = selection.head();
8833 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8834 for symbol in symbols.iter().rev() {
8835 let start = symbol.range.start.to_offset(buffer_snap);
8836 let end = symbol.range.end.to_offset(buffer_snap);
8837 let new_range = start..end;
8838 if start < selection.start || end > selection.end {
8839 return Some(Selection {
8840 id: selection.id,
8841 start: new_range.start,
8842 end: new_range.end,
8843 goal: SelectionGoal::None,
8844 reversed: selection.reversed,
8845 });
8846 }
8847 }
8848 None
8849 }
8850
8851 let mut selected_larger_symbol = false;
8852 let new_selections = old_selections
8853 .iter()
8854 .map(|selection| match update_selection(selection, &buffer) {
8855 Some(new_selection) => {
8856 if new_selection.range() != selection.range() {
8857 selected_larger_symbol = true;
8858 }
8859 new_selection
8860 }
8861 None => selection.clone(),
8862 })
8863 .collect::<Vec<_>>();
8864
8865 if selected_larger_symbol {
8866 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8867 s.select(new_selections);
8868 });
8869 }
8870 }
8871
8872 pub fn select_larger_syntax_node(
8873 &mut self,
8874 _: &SelectLargerSyntaxNode,
8875 cx: &mut ViewContext<Self>,
8876 ) {
8877 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8878 let buffer = self.buffer.read(cx).snapshot(cx);
8879 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8880
8881 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8882 let mut selected_larger_node = false;
8883 let new_selections = old_selections
8884 .iter()
8885 .map(|selection| {
8886 let old_range = selection.start..selection.end;
8887 let mut new_range = old_range.clone();
8888 let mut new_node = None;
8889 while let Some((node, containing_range)) = buffer.syntax_ancestor(new_range.clone())
8890 {
8891 new_node = Some(node);
8892 new_range = containing_range;
8893 if !display_map.intersects_fold(new_range.start)
8894 && !display_map.intersects_fold(new_range.end)
8895 {
8896 break;
8897 }
8898 }
8899
8900 if let Some(node) = new_node {
8901 // Log the ancestor, to support using this action as a way to explore TreeSitter
8902 // nodes. Parent and grandparent are also logged because this operation will not
8903 // visit nodes that have the same range as their parent.
8904 log::info!("Node: {node:?}");
8905 let parent = node.parent();
8906 log::info!("Parent: {parent:?}");
8907 let grandparent = parent.and_then(|x| x.parent());
8908 log::info!("Grandparent: {grandparent:?}");
8909 }
8910
8911 selected_larger_node |= new_range != old_range;
8912 Selection {
8913 id: selection.id,
8914 start: new_range.start,
8915 end: new_range.end,
8916 goal: SelectionGoal::None,
8917 reversed: selection.reversed,
8918 }
8919 })
8920 .collect::<Vec<_>>();
8921
8922 if selected_larger_node {
8923 stack.push(old_selections);
8924 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8925 s.select(new_selections);
8926 });
8927 }
8928 self.select_larger_syntax_node_stack = stack;
8929 }
8930
8931 pub fn select_smaller_syntax_node(
8932 &mut self,
8933 _: &SelectSmallerSyntaxNode,
8934 cx: &mut ViewContext<Self>,
8935 ) {
8936 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8937 if let Some(selections) = stack.pop() {
8938 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8939 s.select(selections.to_vec());
8940 });
8941 }
8942 self.select_larger_syntax_node_stack = stack;
8943 }
8944
8945 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8946 if !EditorSettings::get_global(cx).gutter.runnables {
8947 self.clear_tasks();
8948 return Task::ready(());
8949 }
8950 let project = self.project.as_ref().map(Model::downgrade);
8951 cx.spawn(|this, mut cx| async move {
8952 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8953 let Some(project) = project.and_then(|p| p.upgrade()) else {
8954 return;
8955 };
8956 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8957 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8958 }) else {
8959 return;
8960 };
8961
8962 let hide_runnables = project
8963 .update(&mut cx, |project, cx| {
8964 // Do not display any test indicators in non-dev server remote projects.
8965 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8966 })
8967 .unwrap_or(true);
8968 if hide_runnables {
8969 return;
8970 }
8971 let new_rows =
8972 cx.background_executor()
8973 .spawn({
8974 let snapshot = display_snapshot.clone();
8975 async move {
8976 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8977 }
8978 })
8979 .await;
8980 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8981
8982 this.update(&mut cx, |this, _| {
8983 this.clear_tasks();
8984 for (key, value) in rows {
8985 this.insert_tasks(key, value);
8986 }
8987 })
8988 .ok();
8989 })
8990 }
8991 fn fetch_runnable_ranges(
8992 snapshot: &DisplaySnapshot,
8993 range: Range<Anchor>,
8994 ) -> Vec<language::RunnableRange> {
8995 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8996 }
8997
8998 fn runnable_rows(
8999 project: Model<Project>,
9000 snapshot: DisplaySnapshot,
9001 runnable_ranges: Vec<RunnableRange>,
9002 mut cx: AsyncWindowContext,
9003 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9004 runnable_ranges
9005 .into_iter()
9006 .filter_map(|mut runnable| {
9007 let tasks = cx
9008 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9009 .ok()?;
9010 if tasks.is_empty() {
9011 return None;
9012 }
9013
9014 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9015
9016 let row = snapshot
9017 .buffer_snapshot
9018 .buffer_line_for_row(MultiBufferRow(point.row))?
9019 .1
9020 .start
9021 .row;
9022
9023 let context_range =
9024 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9025 Some((
9026 (runnable.buffer_id, row),
9027 RunnableTasks {
9028 templates: tasks,
9029 offset: MultiBufferOffset(runnable.run_range.start),
9030 context_range,
9031 column: point.column,
9032 extra_variables: runnable.extra_captures,
9033 },
9034 ))
9035 })
9036 .collect()
9037 }
9038
9039 fn templates_with_tags(
9040 project: &Model<Project>,
9041 runnable: &mut Runnable,
9042 cx: &WindowContext,
9043 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9044 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9045 let (worktree_id, file) = project
9046 .buffer_for_id(runnable.buffer, cx)
9047 .and_then(|buffer| buffer.read(cx).file())
9048 .map(|file| (file.worktree_id(cx), file.clone()))
9049 .unzip();
9050
9051 (
9052 project.task_store().read(cx).task_inventory().cloned(),
9053 worktree_id,
9054 file,
9055 )
9056 });
9057
9058 let tags = mem::take(&mut runnable.tags);
9059 let mut tags: Vec<_> = tags
9060 .into_iter()
9061 .flat_map(|tag| {
9062 let tag = tag.0.clone();
9063 inventory
9064 .as_ref()
9065 .into_iter()
9066 .flat_map(|inventory| {
9067 inventory.read(cx).list_tasks(
9068 file.clone(),
9069 Some(runnable.language.clone()),
9070 worktree_id,
9071 cx,
9072 )
9073 })
9074 .filter(move |(_, template)| {
9075 template.tags.iter().any(|source_tag| source_tag == &tag)
9076 })
9077 })
9078 .sorted_by_key(|(kind, _)| kind.to_owned())
9079 .collect();
9080 if let Some((leading_tag_source, _)) = tags.first() {
9081 // Strongest source wins; if we have worktree tag binding, prefer that to
9082 // global and language bindings;
9083 // if we have a global binding, prefer that to language binding.
9084 let first_mismatch = tags
9085 .iter()
9086 .position(|(tag_source, _)| tag_source != leading_tag_source);
9087 if let Some(index) = first_mismatch {
9088 tags.truncate(index);
9089 }
9090 }
9091
9092 tags
9093 }
9094
9095 pub fn move_to_enclosing_bracket(
9096 &mut self,
9097 _: &MoveToEnclosingBracket,
9098 cx: &mut ViewContext<Self>,
9099 ) {
9100 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9101 s.move_offsets_with(|snapshot, selection| {
9102 let Some(enclosing_bracket_ranges) =
9103 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9104 else {
9105 return;
9106 };
9107
9108 let mut best_length = usize::MAX;
9109 let mut best_inside = false;
9110 let mut best_in_bracket_range = false;
9111 let mut best_destination = None;
9112 for (open, close) in enclosing_bracket_ranges {
9113 let close = close.to_inclusive();
9114 let length = close.end() - open.start;
9115 let inside = selection.start >= open.end && selection.end <= *close.start();
9116 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9117 || close.contains(&selection.head());
9118
9119 // If best is next to a bracket and current isn't, skip
9120 if !in_bracket_range && best_in_bracket_range {
9121 continue;
9122 }
9123
9124 // Prefer smaller lengths unless best is inside and current isn't
9125 if length > best_length && (best_inside || !inside) {
9126 continue;
9127 }
9128
9129 best_length = length;
9130 best_inside = inside;
9131 best_in_bracket_range = in_bracket_range;
9132 best_destination = Some(
9133 if close.contains(&selection.start) && close.contains(&selection.end) {
9134 if inside {
9135 open.end
9136 } else {
9137 open.start
9138 }
9139 } else if inside {
9140 *close.start()
9141 } else {
9142 *close.end()
9143 },
9144 );
9145 }
9146
9147 if let Some(destination) = best_destination {
9148 selection.collapse_to(destination, SelectionGoal::None);
9149 }
9150 })
9151 });
9152 }
9153
9154 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9155 self.end_selection(cx);
9156 self.selection_history.mode = SelectionHistoryMode::Undoing;
9157 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9158 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9159 self.select_next_state = entry.select_next_state;
9160 self.select_prev_state = entry.select_prev_state;
9161 self.add_selections_state = entry.add_selections_state;
9162 self.request_autoscroll(Autoscroll::newest(), cx);
9163 }
9164 self.selection_history.mode = SelectionHistoryMode::Normal;
9165 }
9166
9167 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9168 self.end_selection(cx);
9169 self.selection_history.mode = SelectionHistoryMode::Redoing;
9170 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9171 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9172 self.select_next_state = entry.select_next_state;
9173 self.select_prev_state = entry.select_prev_state;
9174 self.add_selections_state = entry.add_selections_state;
9175 self.request_autoscroll(Autoscroll::newest(), cx);
9176 }
9177 self.selection_history.mode = SelectionHistoryMode::Normal;
9178 }
9179
9180 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9181 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9182 }
9183
9184 pub fn expand_excerpts_down(
9185 &mut self,
9186 action: &ExpandExcerptsDown,
9187 cx: &mut ViewContext<Self>,
9188 ) {
9189 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9190 }
9191
9192 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9193 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9194 }
9195
9196 pub fn expand_excerpts_for_direction(
9197 &mut self,
9198 lines: u32,
9199 direction: ExpandExcerptDirection,
9200 cx: &mut ViewContext<Self>,
9201 ) {
9202 let selections = self.selections.disjoint_anchors();
9203
9204 let lines = if lines == 0 {
9205 EditorSettings::get_global(cx).expand_excerpt_lines
9206 } else {
9207 lines
9208 };
9209
9210 self.buffer.update(cx, |buffer, cx| {
9211 let snapshot = buffer.snapshot(cx);
9212 let mut excerpt_ids = selections
9213 .iter()
9214 .flat_map(|selection| {
9215 snapshot
9216 .excerpts_for_range(selection.range())
9217 .map(|excerpt| excerpt.id())
9218 })
9219 .collect::<Vec<_>>();
9220 excerpt_ids.sort();
9221 excerpt_ids.dedup();
9222 buffer.expand_excerpts(excerpt_ids, lines, direction, cx)
9223 })
9224 }
9225
9226 pub fn expand_excerpt(
9227 &mut self,
9228 excerpt: ExcerptId,
9229 direction: ExpandExcerptDirection,
9230 cx: &mut ViewContext<Self>,
9231 ) {
9232 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9233 self.buffer.update(cx, |buffer, cx| {
9234 buffer.expand_excerpts([excerpt], lines, direction, cx)
9235 })
9236 }
9237
9238 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9239 self.go_to_diagnostic_impl(Direction::Next, cx)
9240 }
9241
9242 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9243 self.go_to_diagnostic_impl(Direction::Prev, cx)
9244 }
9245
9246 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9247 let buffer = self.buffer.read(cx).snapshot(cx);
9248 let selection = self.selections.newest::<usize>(cx);
9249
9250 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9251 if direction == Direction::Next {
9252 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9253 self.activate_diagnostics(popover.group_id(), cx);
9254 if let Some(active_diagnostics) = self.active_diagnostics.as_ref() {
9255 let primary_range_start = active_diagnostics.primary_range.start;
9256 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9257 let mut new_selection = s.newest_anchor().clone();
9258 new_selection.collapse_to(primary_range_start, SelectionGoal::None);
9259 s.select_anchors(vec![new_selection.clone()]);
9260 });
9261 self.refresh_inline_completion(false, true, cx);
9262 }
9263 return;
9264 }
9265 }
9266
9267 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9268 active_diagnostics
9269 .primary_range
9270 .to_offset(&buffer)
9271 .to_inclusive()
9272 });
9273 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9274 if active_primary_range.contains(&selection.head()) {
9275 *active_primary_range.start()
9276 } else {
9277 selection.head()
9278 }
9279 } else {
9280 selection.head()
9281 };
9282 let snapshot = self.snapshot(cx);
9283 loop {
9284 let diagnostics = if direction == Direction::Prev {
9285 buffer.diagnostics_in_range(0..search_start, true)
9286 } else {
9287 buffer.diagnostics_in_range(search_start..buffer.len(), false)
9288 }
9289 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9290 let search_start_anchor = buffer.anchor_after(search_start);
9291 let group = diagnostics
9292 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9293 // be sorted in a stable way
9294 // skip until we are at current active diagnostic, if it exists
9295 .skip_while(|entry| {
9296 let is_in_range = match direction {
9297 Direction::Prev => {
9298 entry.range.start.cmp(&search_start_anchor, &buffer).is_ge()
9299 }
9300 Direction::Next => {
9301 entry.range.start.cmp(&search_start_anchor, &buffer).is_le()
9302 }
9303 };
9304 is_in_range
9305 && self
9306 .active_diagnostics
9307 .as_ref()
9308 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9309 })
9310 .find_map(|entry| {
9311 if entry.diagnostic.is_primary
9312 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9313 && !(entry.range.start == entry.range.end)
9314 // if we match with the active diagnostic, skip it
9315 && Some(entry.diagnostic.group_id)
9316 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9317 {
9318 Some((entry.range, entry.diagnostic.group_id))
9319 } else {
9320 None
9321 }
9322 });
9323
9324 if let Some((primary_range, group_id)) = group {
9325 self.activate_diagnostics(group_id, cx);
9326 let primary_range = primary_range.to_offset(&buffer);
9327 if self.active_diagnostics.is_some() {
9328 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9329 s.select(vec![Selection {
9330 id: selection.id,
9331 start: primary_range.start,
9332 end: primary_range.start,
9333 reversed: false,
9334 goal: SelectionGoal::None,
9335 }]);
9336 });
9337 self.refresh_inline_completion(false, true, cx);
9338 }
9339 break;
9340 } else {
9341 // Cycle around to the start of the buffer, potentially moving back to the start of
9342 // the currently active diagnostic.
9343 active_primary_range.take();
9344 if direction == Direction::Prev {
9345 if search_start == buffer.len() {
9346 break;
9347 } else {
9348 search_start = buffer.len();
9349 }
9350 } else if search_start == 0 {
9351 break;
9352 } else {
9353 search_start = 0;
9354 }
9355 }
9356 }
9357 }
9358
9359 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9360 let snapshot = self.snapshot(cx);
9361 let selection = self.selections.newest::<Point>(cx);
9362 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9363 }
9364
9365 fn go_to_hunk_after_position(
9366 &mut self,
9367 snapshot: &EditorSnapshot,
9368 position: Point,
9369 cx: &mut ViewContext<Editor>,
9370 ) -> Option<MultiBufferDiffHunk> {
9371 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9372 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9373 snapshot,
9374 position,
9375 ix > 0,
9376 snapshot.diff_map.diff_hunks_in_range(
9377 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9378 &snapshot.buffer_snapshot,
9379 ),
9380 cx,
9381 ) {
9382 return Some(hunk);
9383 }
9384 }
9385 None
9386 }
9387
9388 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9389 let snapshot = self.snapshot(cx);
9390 let selection = self.selections.newest::<Point>(cx);
9391 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9392 }
9393
9394 fn go_to_hunk_before_position(
9395 &mut self,
9396 snapshot: &EditorSnapshot,
9397 position: Point,
9398 cx: &mut ViewContext<Editor>,
9399 ) -> Option<MultiBufferDiffHunk> {
9400 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9401 .into_iter()
9402 .enumerate()
9403 {
9404 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9405 snapshot,
9406 position,
9407 ix > 0,
9408 snapshot
9409 .diff_map
9410 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9411 cx,
9412 ) {
9413 return Some(hunk);
9414 }
9415 }
9416 None
9417 }
9418
9419 fn go_to_next_hunk_in_direction(
9420 &mut self,
9421 snapshot: &DisplaySnapshot,
9422 initial_point: Point,
9423 is_wrapped: bool,
9424 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9425 cx: &mut ViewContext<Editor>,
9426 ) -> Option<MultiBufferDiffHunk> {
9427 let display_point = initial_point.to_display_point(snapshot);
9428 let mut hunks = hunks
9429 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9430 .filter(|(display_hunk, _)| {
9431 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9432 })
9433 .dedup();
9434
9435 if let Some((display_hunk, hunk)) = hunks.next() {
9436 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9437 let row = display_hunk.start_display_row();
9438 let point = DisplayPoint::new(row, 0);
9439 s.select_display_ranges([point..point]);
9440 });
9441
9442 Some(hunk)
9443 } else {
9444 None
9445 }
9446 }
9447
9448 pub fn go_to_definition(
9449 &mut self,
9450 _: &GoToDefinition,
9451 cx: &mut ViewContext<Self>,
9452 ) -> Task<Result<Navigated>> {
9453 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9454 cx.spawn(|editor, mut cx| async move {
9455 if definition.await? == Navigated::Yes {
9456 return Ok(Navigated::Yes);
9457 }
9458 match editor.update(&mut cx, |editor, cx| {
9459 editor.find_all_references(&FindAllReferences, cx)
9460 })? {
9461 Some(references) => references.await,
9462 None => Ok(Navigated::No),
9463 }
9464 })
9465 }
9466
9467 pub fn go_to_declaration(
9468 &mut self,
9469 _: &GoToDeclaration,
9470 cx: &mut ViewContext<Self>,
9471 ) -> Task<Result<Navigated>> {
9472 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9473 }
9474
9475 pub fn go_to_declaration_split(
9476 &mut self,
9477 _: &GoToDeclaration,
9478 cx: &mut ViewContext<Self>,
9479 ) -> Task<Result<Navigated>> {
9480 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9481 }
9482
9483 pub fn go_to_implementation(
9484 &mut self,
9485 _: &GoToImplementation,
9486 cx: &mut ViewContext<Self>,
9487 ) -> Task<Result<Navigated>> {
9488 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9489 }
9490
9491 pub fn go_to_implementation_split(
9492 &mut self,
9493 _: &GoToImplementationSplit,
9494 cx: &mut ViewContext<Self>,
9495 ) -> Task<Result<Navigated>> {
9496 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9497 }
9498
9499 pub fn go_to_type_definition(
9500 &mut self,
9501 _: &GoToTypeDefinition,
9502 cx: &mut ViewContext<Self>,
9503 ) -> Task<Result<Navigated>> {
9504 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9505 }
9506
9507 pub fn go_to_definition_split(
9508 &mut self,
9509 _: &GoToDefinitionSplit,
9510 cx: &mut ViewContext<Self>,
9511 ) -> Task<Result<Navigated>> {
9512 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9513 }
9514
9515 pub fn go_to_type_definition_split(
9516 &mut self,
9517 _: &GoToTypeDefinitionSplit,
9518 cx: &mut ViewContext<Self>,
9519 ) -> Task<Result<Navigated>> {
9520 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9521 }
9522
9523 fn go_to_definition_of_kind(
9524 &mut self,
9525 kind: GotoDefinitionKind,
9526 split: bool,
9527 cx: &mut ViewContext<Self>,
9528 ) -> Task<Result<Navigated>> {
9529 let Some(provider) = self.semantics_provider.clone() else {
9530 return Task::ready(Ok(Navigated::No));
9531 };
9532 let head = self.selections.newest::<usize>(cx).head();
9533 let buffer = self.buffer.read(cx);
9534 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9535 text_anchor
9536 } else {
9537 return Task::ready(Ok(Navigated::No));
9538 };
9539
9540 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9541 return Task::ready(Ok(Navigated::No));
9542 };
9543
9544 cx.spawn(|editor, mut cx| async move {
9545 let definitions = definitions.await?;
9546 let navigated = editor
9547 .update(&mut cx, |editor, cx| {
9548 editor.navigate_to_hover_links(
9549 Some(kind),
9550 definitions
9551 .into_iter()
9552 .filter(|location| {
9553 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9554 })
9555 .map(HoverLink::Text)
9556 .collect::<Vec<_>>(),
9557 split,
9558 cx,
9559 )
9560 })?
9561 .await?;
9562 anyhow::Ok(navigated)
9563 })
9564 }
9565
9566 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9567 let selection = self.selections.newest_anchor();
9568 let head = selection.head();
9569 let tail = selection.tail();
9570
9571 let Some((buffer, start_position)) =
9572 self.buffer.read(cx).text_anchor_for_position(head, cx)
9573 else {
9574 return;
9575 };
9576
9577 let end_position = if head != tail {
9578 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9579 return;
9580 };
9581 Some(pos)
9582 } else {
9583 None
9584 };
9585
9586 let url_finder = cx.spawn(|editor, mut cx| async move {
9587 let url = if let Some(end_pos) = end_position {
9588 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9589 } else {
9590 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9591 };
9592
9593 if let Some(url) = url {
9594 editor.update(&mut cx, |_, cx| {
9595 cx.open_url(&url);
9596 })
9597 } else {
9598 Ok(())
9599 }
9600 });
9601
9602 url_finder.detach();
9603 }
9604
9605 pub fn open_selected_filename(&mut self, _: &OpenSelectedFilename, cx: &mut ViewContext<Self>) {
9606 let Some(workspace) = self.workspace() else {
9607 return;
9608 };
9609
9610 let position = self.selections.newest_anchor().head();
9611
9612 let Some((buffer, buffer_position)) =
9613 self.buffer.read(cx).text_anchor_for_position(position, cx)
9614 else {
9615 return;
9616 };
9617
9618 let project = self.project.clone();
9619
9620 cx.spawn(|_, mut cx| async move {
9621 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9622
9623 if let Some((_, path)) = result {
9624 workspace
9625 .update(&mut cx, |workspace, cx| {
9626 workspace.open_resolved_path(path, cx)
9627 })?
9628 .await?;
9629 }
9630 anyhow::Ok(())
9631 })
9632 .detach();
9633 }
9634
9635 pub(crate) fn navigate_to_hover_links(
9636 &mut self,
9637 kind: Option<GotoDefinitionKind>,
9638 mut definitions: Vec<HoverLink>,
9639 split: bool,
9640 cx: &mut ViewContext<Editor>,
9641 ) -> Task<Result<Navigated>> {
9642 // If there is one definition, just open it directly
9643 if definitions.len() == 1 {
9644 let definition = definitions.pop().unwrap();
9645
9646 enum TargetTaskResult {
9647 Location(Option<Location>),
9648 AlreadyNavigated,
9649 }
9650
9651 let target_task = match definition {
9652 HoverLink::Text(link) => {
9653 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9654 }
9655 HoverLink::InlayHint(lsp_location, server_id) => {
9656 let computation = self.compute_target_location(lsp_location, server_id, cx);
9657 cx.background_executor().spawn(async move {
9658 let location = computation.await?;
9659 Ok(TargetTaskResult::Location(location))
9660 })
9661 }
9662 HoverLink::Url(url) => {
9663 cx.open_url(&url);
9664 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9665 }
9666 HoverLink::File(path) => {
9667 if let Some(workspace) = self.workspace() {
9668 cx.spawn(|_, mut cx| async move {
9669 workspace
9670 .update(&mut cx, |workspace, cx| {
9671 workspace.open_resolved_path(path, cx)
9672 })?
9673 .await
9674 .map(|_| TargetTaskResult::AlreadyNavigated)
9675 })
9676 } else {
9677 Task::ready(Ok(TargetTaskResult::Location(None)))
9678 }
9679 }
9680 };
9681 cx.spawn(|editor, mut cx| async move {
9682 let target = match target_task.await.context("target resolution task")? {
9683 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9684 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9685 TargetTaskResult::Location(Some(target)) => target,
9686 };
9687
9688 editor.update(&mut cx, |editor, cx| {
9689 let Some(workspace) = editor.workspace() else {
9690 return Navigated::No;
9691 };
9692 let pane = workspace.read(cx).active_pane().clone();
9693
9694 let range = target.range.to_offset(target.buffer.read(cx));
9695 let range = editor.range_for_match(&range);
9696
9697 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9698 let buffer = target.buffer.read(cx);
9699 let range = check_multiline_range(buffer, range);
9700 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9701 s.select_ranges([range]);
9702 });
9703 } else {
9704 cx.window_context().defer(move |cx| {
9705 let target_editor: View<Self> =
9706 workspace.update(cx, |workspace, cx| {
9707 let pane = if split {
9708 workspace.adjacent_pane(cx)
9709 } else {
9710 workspace.active_pane().clone()
9711 };
9712
9713 workspace.open_project_item(
9714 pane,
9715 target.buffer.clone(),
9716 true,
9717 true,
9718 cx,
9719 )
9720 });
9721 target_editor.update(cx, |target_editor, cx| {
9722 // When selecting a definition in a different buffer, disable the nav history
9723 // to avoid creating a history entry at the previous cursor location.
9724 pane.update(cx, |pane, _| pane.disable_history());
9725 let buffer = target.buffer.read(cx);
9726 let range = check_multiline_range(buffer, range);
9727 target_editor.change_selections(
9728 Some(Autoscroll::focused()),
9729 cx,
9730 |s| {
9731 s.select_ranges([range]);
9732 },
9733 );
9734 pane.update(cx, |pane, _| pane.enable_history());
9735 });
9736 });
9737 }
9738 Navigated::Yes
9739 })
9740 })
9741 } else if !definitions.is_empty() {
9742 cx.spawn(|editor, mut cx| async move {
9743 let (title, location_tasks, workspace) = editor
9744 .update(&mut cx, |editor, cx| {
9745 let tab_kind = match kind {
9746 Some(GotoDefinitionKind::Implementation) => "Implementations",
9747 _ => "Definitions",
9748 };
9749 let title = definitions
9750 .iter()
9751 .find_map(|definition| match definition {
9752 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9753 let buffer = origin.buffer.read(cx);
9754 format!(
9755 "{} for {}",
9756 tab_kind,
9757 buffer
9758 .text_for_range(origin.range.clone())
9759 .collect::<String>()
9760 )
9761 }),
9762 HoverLink::InlayHint(_, _) => None,
9763 HoverLink::Url(_) => None,
9764 HoverLink::File(_) => None,
9765 })
9766 .unwrap_or(tab_kind.to_string());
9767 let location_tasks = definitions
9768 .into_iter()
9769 .map(|definition| match definition {
9770 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9771 HoverLink::InlayHint(lsp_location, server_id) => {
9772 editor.compute_target_location(lsp_location, server_id, cx)
9773 }
9774 HoverLink::Url(_) => Task::ready(Ok(None)),
9775 HoverLink::File(_) => Task::ready(Ok(None)),
9776 })
9777 .collect::<Vec<_>>();
9778 (title, location_tasks, editor.workspace().clone())
9779 })
9780 .context("location tasks preparation")?;
9781
9782 let locations = future::join_all(location_tasks)
9783 .await
9784 .into_iter()
9785 .filter_map(|location| location.transpose())
9786 .collect::<Result<_>>()
9787 .context("location tasks")?;
9788
9789 let Some(workspace) = workspace else {
9790 return Ok(Navigated::No);
9791 };
9792 let opened = workspace
9793 .update(&mut cx, |workspace, cx| {
9794 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9795 })
9796 .ok();
9797
9798 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9799 })
9800 } else {
9801 Task::ready(Ok(Navigated::No))
9802 }
9803 }
9804
9805 fn compute_target_location(
9806 &self,
9807 lsp_location: lsp::Location,
9808 server_id: LanguageServerId,
9809 cx: &mut ViewContext<Self>,
9810 ) -> Task<anyhow::Result<Option<Location>>> {
9811 let Some(project) = self.project.clone() else {
9812 return Task::ready(Ok(None));
9813 };
9814
9815 cx.spawn(move |editor, mut cx| async move {
9816 let location_task = editor.update(&mut cx, |_, cx| {
9817 project.update(cx, |project, cx| {
9818 let language_server_name = project
9819 .language_server_statuses(cx)
9820 .find(|(id, _)| server_id == *id)
9821 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9822 language_server_name.map(|language_server_name| {
9823 project.open_local_buffer_via_lsp(
9824 lsp_location.uri.clone(),
9825 server_id,
9826 language_server_name,
9827 cx,
9828 )
9829 })
9830 })
9831 })?;
9832 let location = match location_task {
9833 Some(task) => Some({
9834 let target_buffer_handle = task.await.context("open local buffer")?;
9835 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9836 let target_start = target_buffer
9837 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9838 let target_end = target_buffer
9839 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9840 target_buffer.anchor_after(target_start)
9841 ..target_buffer.anchor_before(target_end)
9842 })?;
9843 Location {
9844 buffer: target_buffer_handle,
9845 range,
9846 }
9847 }),
9848 None => None,
9849 };
9850 Ok(location)
9851 })
9852 }
9853
9854 pub fn find_all_references(
9855 &mut self,
9856 _: &FindAllReferences,
9857 cx: &mut ViewContext<Self>,
9858 ) -> Option<Task<Result<Navigated>>> {
9859 let selection = self.selections.newest::<usize>(cx);
9860 let multi_buffer = self.buffer.read(cx);
9861 let head = selection.head();
9862
9863 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9864 let head_anchor = multi_buffer_snapshot.anchor_at(
9865 head,
9866 if head < selection.tail() {
9867 Bias::Right
9868 } else {
9869 Bias::Left
9870 },
9871 );
9872
9873 match self
9874 .find_all_references_task_sources
9875 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9876 {
9877 Ok(_) => {
9878 log::info!(
9879 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9880 );
9881 return None;
9882 }
9883 Err(i) => {
9884 self.find_all_references_task_sources.insert(i, head_anchor);
9885 }
9886 }
9887
9888 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9889 let workspace = self.workspace()?;
9890 let project = workspace.read(cx).project().clone();
9891 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9892 Some(cx.spawn(|editor, mut cx| async move {
9893 let _cleanup = defer({
9894 let mut cx = cx.clone();
9895 move || {
9896 let _ = editor.update(&mut cx, |editor, _| {
9897 if let Ok(i) =
9898 editor
9899 .find_all_references_task_sources
9900 .binary_search_by(|anchor| {
9901 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9902 })
9903 {
9904 editor.find_all_references_task_sources.remove(i);
9905 }
9906 });
9907 }
9908 });
9909
9910 let locations = references.await?;
9911 if locations.is_empty() {
9912 return anyhow::Ok(Navigated::No);
9913 }
9914
9915 workspace.update(&mut cx, |workspace, cx| {
9916 let title = locations
9917 .first()
9918 .as_ref()
9919 .map(|location| {
9920 let buffer = location.buffer.read(cx);
9921 format!(
9922 "References to `{}`",
9923 buffer
9924 .text_for_range(location.range.clone())
9925 .collect::<String>()
9926 )
9927 })
9928 .unwrap();
9929 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9930 Navigated::Yes
9931 })
9932 }))
9933 }
9934
9935 /// Opens a multibuffer with the given project locations in it
9936 pub fn open_locations_in_multibuffer(
9937 workspace: &mut Workspace,
9938 mut locations: Vec<Location>,
9939 title: String,
9940 split: bool,
9941 cx: &mut ViewContext<Workspace>,
9942 ) {
9943 // If there are multiple definitions, open them in a multibuffer
9944 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9945 let mut locations = locations.into_iter().peekable();
9946 let mut ranges_to_highlight = Vec::new();
9947 let capability = workspace.project().read(cx).capability();
9948
9949 let excerpt_buffer = cx.new_model(|cx| {
9950 let mut multibuffer = MultiBuffer::new(capability);
9951 while let Some(location) = locations.next() {
9952 let buffer = location.buffer.read(cx);
9953 let mut ranges_for_buffer = Vec::new();
9954 let range = location.range.to_offset(buffer);
9955 ranges_for_buffer.push(range.clone());
9956
9957 while let Some(next_location) = locations.peek() {
9958 if next_location.buffer == location.buffer {
9959 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9960 locations.next();
9961 } else {
9962 break;
9963 }
9964 }
9965
9966 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9967 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9968 location.buffer.clone(),
9969 ranges_for_buffer,
9970 DEFAULT_MULTIBUFFER_CONTEXT,
9971 cx,
9972 ))
9973 }
9974
9975 multibuffer.with_title(title)
9976 });
9977
9978 let editor = cx.new_view(|cx| {
9979 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9980 });
9981 editor.update(cx, |editor, cx| {
9982 if let Some(first_range) = ranges_to_highlight.first() {
9983 editor.change_selections(None, cx, |selections| {
9984 selections.clear_disjoint();
9985 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9986 });
9987 }
9988 editor.highlight_background::<Self>(
9989 &ranges_to_highlight,
9990 |theme| theme.editor_highlighted_line_background,
9991 cx,
9992 );
9993 editor.register_buffers_with_language_servers(cx);
9994 });
9995
9996 let item = Box::new(editor);
9997 let item_id = item.item_id();
9998
9999 if split {
10000 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10001 } else {
10002 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10003 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10004 pane.close_current_preview_item(cx)
10005 } else {
10006 None
10007 }
10008 });
10009 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10010 }
10011 workspace.active_pane().update(cx, |pane, cx| {
10012 pane.set_preview_item_id(Some(item_id), cx);
10013 });
10014 }
10015
10016 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10017 use language::ToOffset as _;
10018
10019 let provider = self.semantics_provider.clone()?;
10020 let selection = self.selections.newest_anchor().clone();
10021 let (cursor_buffer, cursor_buffer_position) = self
10022 .buffer
10023 .read(cx)
10024 .text_anchor_for_position(selection.head(), cx)?;
10025 let (tail_buffer, cursor_buffer_position_end) = self
10026 .buffer
10027 .read(cx)
10028 .text_anchor_for_position(selection.tail(), cx)?;
10029 if tail_buffer != cursor_buffer {
10030 return None;
10031 }
10032
10033 let snapshot = cursor_buffer.read(cx).snapshot();
10034 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10035 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10036 let prepare_rename = provider
10037 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10038 .unwrap_or_else(|| Task::ready(Ok(None)));
10039 drop(snapshot);
10040
10041 Some(cx.spawn(|this, mut cx| async move {
10042 let rename_range = if let Some(range) = prepare_rename.await? {
10043 Some(range)
10044 } else {
10045 this.update(&mut cx, |this, cx| {
10046 let buffer = this.buffer.read(cx).snapshot(cx);
10047 let mut buffer_highlights = this
10048 .document_highlights_for_position(selection.head(), &buffer)
10049 .filter(|highlight| {
10050 highlight.start.excerpt_id == selection.head().excerpt_id
10051 && highlight.end.excerpt_id == selection.head().excerpt_id
10052 });
10053 buffer_highlights
10054 .next()
10055 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10056 })?
10057 };
10058 if let Some(rename_range) = rename_range {
10059 this.update(&mut cx, |this, cx| {
10060 let snapshot = cursor_buffer.read(cx).snapshot();
10061 let rename_buffer_range = rename_range.to_offset(&snapshot);
10062 let cursor_offset_in_rename_range =
10063 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10064 let cursor_offset_in_rename_range_end =
10065 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10066
10067 this.take_rename(false, cx);
10068 let buffer = this.buffer.read(cx).read(cx);
10069 let cursor_offset = selection.head().to_offset(&buffer);
10070 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10071 let rename_end = rename_start + rename_buffer_range.len();
10072 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10073 let mut old_highlight_id = None;
10074 let old_name: Arc<str> = buffer
10075 .chunks(rename_start..rename_end, true)
10076 .map(|chunk| {
10077 if old_highlight_id.is_none() {
10078 old_highlight_id = chunk.syntax_highlight_id;
10079 }
10080 chunk.text
10081 })
10082 .collect::<String>()
10083 .into();
10084
10085 drop(buffer);
10086
10087 // Position the selection in the rename editor so that it matches the current selection.
10088 this.show_local_selections = false;
10089 let rename_editor = cx.new_view(|cx| {
10090 let mut editor = Editor::single_line(cx);
10091 editor.buffer.update(cx, |buffer, cx| {
10092 buffer.edit([(0..0, old_name.clone())], None, cx)
10093 });
10094 let rename_selection_range = match cursor_offset_in_rename_range
10095 .cmp(&cursor_offset_in_rename_range_end)
10096 {
10097 Ordering::Equal => {
10098 editor.select_all(&SelectAll, cx);
10099 return editor;
10100 }
10101 Ordering::Less => {
10102 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10103 }
10104 Ordering::Greater => {
10105 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10106 }
10107 };
10108 if rename_selection_range.end > old_name.len() {
10109 editor.select_all(&SelectAll, cx);
10110 } else {
10111 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10112 s.select_ranges([rename_selection_range]);
10113 });
10114 }
10115 editor
10116 });
10117 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10118 if e == &EditorEvent::Focused {
10119 cx.emit(EditorEvent::FocusedIn)
10120 }
10121 })
10122 .detach();
10123
10124 let write_highlights =
10125 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10126 let read_highlights =
10127 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10128 let ranges = write_highlights
10129 .iter()
10130 .flat_map(|(_, ranges)| ranges.iter())
10131 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10132 .cloned()
10133 .collect();
10134
10135 this.highlight_text::<Rename>(
10136 ranges,
10137 HighlightStyle {
10138 fade_out: Some(0.6),
10139 ..Default::default()
10140 },
10141 cx,
10142 );
10143 let rename_focus_handle = rename_editor.focus_handle(cx);
10144 cx.focus(&rename_focus_handle);
10145 let block_id = this.insert_blocks(
10146 [BlockProperties {
10147 style: BlockStyle::Flex,
10148 placement: BlockPlacement::Below(range.start),
10149 height: 1,
10150 render: Arc::new({
10151 let rename_editor = rename_editor.clone();
10152 move |cx: &mut BlockContext| {
10153 let mut text_style = cx.editor_style.text.clone();
10154 if let Some(highlight_style) = old_highlight_id
10155 .and_then(|h| h.style(&cx.editor_style.syntax))
10156 {
10157 text_style = text_style.highlight(highlight_style);
10158 }
10159 div()
10160 .block_mouse_down()
10161 .pl(cx.anchor_x)
10162 .child(EditorElement::new(
10163 &rename_editor,
10164 EditorStyle {
10165 background: cx.theme().system().transparent,
10166 local_player: cx.editor_style.local_player,
10167 text: text_style,
10168 scrollbar_width: cx.editor_style.scrollbar_width,
10169 syntax: cx.editor_style.syntax.clone(),
10170 status: cx.editor_style.status.clone(),
10171 inlay_hints_style: HighlightStyle {
10172 font_weight: Some(FontWeight::BOLD),
10173 ..make_inlay_hints_style(cx)
10174 },
10175 inline_completion_styles: make_suggestion_styles(
10176 cx,
10177 ),
10178 ..EditorStyle::default()
10179 },
10180 ))
10181 .into_any_element()
10182 }
10183 }),
10184 priority: 0,
10185 }],
10186 Some(Autoscroll::fit()),
10187 cx,
10188 )[0];
10189 this.pending_rename = Some(RenameState {
10190 range,
10191 old_name,
10192 editor: rename_editor,
10193 block_id,
10194 });
10195 })?;
10196 }
10197
10198 Ok(())
10199 }))
10200 }
10201
10202 pub fn confirm_rename(
10203 &mut self,
10204 _: &ConfirmRename,
10205 cx: &mut ViewContext<Self>,
10206 ) -> Option<Task<Result<()>>> {
10207 let rename = self.take_rename(false, cx)?;
10208 let workspace = self.workspace()?.downgrade();
10209 let (buffer, start) = self
10210 .buffer
10211 .read(cx)
10212 .text_anchor_for_position(rename.range.start, cx)?;
10213 let (end_buffer, _) = self
10214 .buffer
10215 .read(cx)
10216 .text_anchor_for_position(rename.range.end, cx)?;
10217 if buffer != end_buffer {
10218 return None;
10219 }
10220
10221 let old_name = rename.old_name;
10222 let new_name = rename.editor.read(cx).text(cx);
10223
10224 let rename = self.semantics_provider.as_ref()?.perform_rename(
10225 &buffer,
10226 start,
10227 new_name.clone(),
10228 cx,
10229 )?;
10230
10231 Some(cx.spawn(|editor, mut cx| async move {
10232 let project_transaction = rename.await?;
10233 Self::open_project_transaction(
10234 &editor,
10235 workspace,
10236 project_transaction,
10237 format!("Rename: {} → {}", old_name, new_name),
10238 cx.clone(),
10239 )
10240 .await?;
10241
10242 editor.update(&mut cx, |editor, cx| {
10243 editor.refresh_document_highlights(cx);
10244 })?;
10245 Ok(())
10246 }))
10247 }
10248
10249 fn take_rename(
10250 &mut self,
10251 moving_cursor: bool,
10252 cx: &mut ViewContext<Self>,
10253 ) -> Option<RenameState> {
10254 let rename = self.pending_rename.take()?;
10255 if rename.editor.focus_handle(cx).is_focused(cx) {
10256 cx.focus(&self.focus_handle);
10257 }
10258
10259 self.remove_blocks(
10260 [rename.block_id].into_iter().collect(),
10261 Some(Autoscroll::fit()),
10262 cx,
10263 );
10264 self.clear_highlights::<Rename>(cx);
10265 self.show_local_selections = true;
10266
10267 if moving_cursor {
10268 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10269 editor.selections.newest::<usize>(cx).head()
10270 });
10271
10272 // Update the selection to match the position of the selection inside
10273 // the rename editor.
10274 let snapshot = self.buffer.read(cx).read(cx);
10275 let rename_range = rename.range.to_offset(&snapshot);
10276 let cursor_in_editor = snapshot
10277 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10278 .min(rename_range.end);
10279 drop(snapshot);
10280
10281 self.change_selections(None, cx, |s| {
10282 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10283 });
10284 } else {
10285 self.refresh_document_highlights(cx);
10286 }
10287
10288 Some(rename)
10289 }
10290
10291 pub fn pending_rename(&self) -> Option<&RenameState> {
10292 self.pending_rename.as_ref()
10293 }
10294
10295 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10296 let project = match &self.project {
10297 Some(project) => project.clone(),
10298 None => return None,
10299 };
10300
10301 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffers, cx))
10302 }
10303
10304 fn format_selections(
10305 &mut self,
10306 _: &FormatSelections,
10307 cx: &mut ViewContext<Self>,
10308 ) -> Option<Task<Result<()>>> {
10309 let project = match &self.project {
10310 Some(project) => project.clone(),
10311 None => return None,
10312 };
10313
10314 let ranges = self
10315 .selections
10316 .all_adjusted(cx)
10317 .into_iter()
10318 .map(|selection| selection.range())
10319 .collect_vec();
10320
10321 Some(self.perform_format(
10322 project,
10323 FormatTrigger::Manual,
10324 FormatTarget::Ranges(ranges),
10325 cx,
10326 ))
10327 }
10328
10329 fn perform_format(
10330 &mut self,
10331 project: Model<Project>,
10332 trigger: FormatTrigger,
10333 target: FormatTarget,
10334 cx: &mut ViewContext<Self>,
10335 ) -> Task<Result<()>> {
10336 let buffer = self.buffer.clone();
10337 let (buffers, target) = match target {
10338 FormatTarget::Buffers => {
10339 let mut buffers = buffer.read(cx).all_buffers();
10340 if trigger == FormatTrigger::Save {
10341 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10342 }
10343 (buffers, LspFormatTarget::Buffers)
10344 }
10345 FormatTarget::Ranges(selection_ranges) => {
10346 let multi_buffer = buffer.read(cx);
10347 let snapshot = multi_buffer.read(cx);
10348 let mut buffers = HashSet::default();
10349 let mut buffer_id_to_ranges: BTreeMap<BufferId, Vec<Range<text::Anchor>>> =
10350 BTreeMap::new();
10351 for selection_range in selection_ranges {
10352 for (excerpt, buffer_range) in snapshot.range_to_buffer_ranges(selection_range)
10353 {
10354 let buffer_id = excerpt.buffer_id();
10355 let start = excerpt.buffer().anchor_before(buffer_range.start);
10356 let end = excerpt.buffer().anchor_after(buffer_range.end);
10357 buffers.insert(multi_buffer.buffer(buffer_id).unwrap());
10358 buffer_id_to_ranges
10359 .entry(buffer_id)
10360 .and_modify(|buffer_ranges| buffer_ranges.push(start..end))
10361 .or_insert_with(|| vec![start..end]);
10362 }
10363 }
10364 (buffers, LspFormatTarget::Ranges(buffer_id_to_ranges))
10365 }
10366 };
10367
10368 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10369 let format = project.update(cx, |project, cx| {
10370 project.format(buffers, target, true, trigger, cx)
10371 });
10372
10373 cx.spawn(|_, mut cx| async move {
10374 let transaction = futures::select_biased! {
10375 () = timeout => {
10376 log::warn!("timed out waiting for formatting");
10377 None
10378 }
10379 transaction = format.log_err().fuse() => transaction,
10380 };
10381
10382 buffer
10383 .update(&mut cx, |buffer, cx| {
10384 if let Some(transaction) = transaction {
10385 if !buffer.is_singleton() {
10386 buffer.push_transaction(&transaction.0, cx);
10387 }
10388 }
10389
10390 cx.notify();
10391 })
10392 .ok();
10393
10394 Ok(())
10395 })
10396 }
10397
10398 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10399 if let Some(project) = self.project.clone() {
10400 self.buffer.update(cx, |multi_buffer, cx| {
10401 project.update(cx, |project, cx| {
10402 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10403 });
10404 })
10405 }
10406 }
10407
10408 fn cancel_language_server_work(
10409 &mut self,
10410 _: &actions::CancelLanguageServerWork,
10411 cx: &mut ViewContext<Self>,
10412 ) {
10413 if let Some(project) = self.project.clone() {
10414 self.buffer.update(cx, |multi_buffer, cx| {
10415 project.update(cx, |project, cx| {
10416 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10417 });
10418 })
10419 }
10420 }
10421
10422 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10423 cx.show_character_palette();
10424 }
10425
10426 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10427 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10428 let buffer = self.buffer.read(cx).snapshot(cx);
10429 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10430 let is_valid = buffer
10431 .diagnostics_in_range(active_diagnostics.primary_range.clone(), false)
10432 .any(|entry| {
10433 let range = entry.range.to_offset(&buffer);
10434 entry.diagnostic.is_primary
10435 && !range.is_empty()
10436 && range.start == primary_range_start
10437 && entry.diagnostic.message == active_diagnostics.primary_message
10438 });
10439
10440 if is_valid != active_diagnostics.is_valid {
10441 active_diagnostics.is_valid = is_valid;
10442 let mut new_styles = HashMap::default();
10443 for (block_id, diagnostic) in &active_diagnostics.blocks {
10444 new_styles.insert(
10445 *block_id,
10446 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10447 );
10448 }
10449 self.display_map.update(cx, |display_map, _cx| {
10450 display_map.replace_blocks(new_styles)
10451 });
10452 }
10453 }
10454 }
10455
10456 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) {
10457 self.dismiss_diagnostics(cx);
10458 let snapshot = self.snapshot(cx);
10459 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10460 let buffer = self.buffer.read(cx).snapshot(cx);
10461
10462 let mut primary_range = None;
10463 let mut primary_message = None;
10464 let mut group_end = Point::zero();
10465 let diagnostic_group = buffer
10466 .diagnostic_group(group_id)
10467 .filter_map(|entry| {
10468 let start = entry.range.start.to_point(&buffer);
10469 let end = entry.range.end.to_point(&buffer);
10470 if snapshot.is_line_folded(MultiBufferRow(start.row))
10471 && (start.row == end.row
10472 || snapshot.is_line_folded(MultiBufferRow(end.row)))
10473 {
10474 return None;
10475 }
10476 if end > group_end {
10477 group_end = end;
10478 }
10479 if entry.diagnostic.is_primary {
10480 primary_range = Some(entry.range.clone());
10481 primary_message = Some(entry.diagnostic.message.clone());
10482 }
10483 Some(entry)
10484 })
10485 .collect::<Vec<_>>();
10486 let primary_range = primary_range?;
10487 let primary_message = primary_message?;
10488
10489 let blocks = display_map
10490 .insert_blocks(
10491 diagnostic_group.iter().map(|entry| {
10492 let diagnostic = entry.diagnostic.clone();
10493 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10494 BlockProperties {
10495 style: BlockStyle::Fixed,
10496 placement: BlockPlacement::Below(
10497 buffer.anchor_after(entry.range.start),
10498 ),
10499 height: message_height,
10500 render: diagnostic_block_renderer(diagnostic, None, true, true),
10501 priority: 0,
10502 }
10503 }),
10504 cx,
10505 )
10506 .into_iter()
10507 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10508 .collect();
10509
10510 Some(ActiveDiagnosticGroup {
10511 primary_range,
10512 primary_message,
10513 group_id,
10514 blocks,
10515 is_valid: true,
10516 })
10517 });
10518 }
10519
10520 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10521 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10522 self.display_map.update(cx, |display_map, cx| {
10523 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10524 });
10525 cx.notify();
10526 }
10527 }
10528
10529 pub fn set_selections_from_remote(
10530 &mut self,
10531 selections: Vec<Selection<Anchor>>,
10532 pending_selection: Option<Selection<Anchor>>,
10533 cx: &mut ViewContext<Self>,
10534 ) {
10535 let old_cursor_position = self.selections.newest_anchor().head();
10536 self.selections.change_with(cx, |s| {
10537 s.select_anchors(selections);
10538 if let Some(pending_selection) = pending_selection {
10539 s.set_pending(pending_selection, SelectMode::Character);
10540 } else {
10541 s.clear_pending();
10542 }
10543 });
10544 self.selections_did_change(false, &old_cursor_position, true, cx);
10545 }
10546
10547 fn push_to_selection_history(&mut self) {
10548 self.selection_history.push(SelectionHistoryEntry {
10549 selections: self.selections.disjoint_anchors(),
10550 select_next_state: self.select_next_state.clone(),
10551 select_prev_state: self.select_prev_state.clone(),
10552 add_selections_state: self.add_selections_state.clone(),
10553 });
10554 }
10555
10556 pub fn transact(
10557 &mut self,
10558 cx: &mut ViewContext<Self>,
10559 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10560 ) -> Option<TransactionId> {
10561 self.start_transaction_at(Instant::now(), cx);
10562 update(self, cx);
10563 self.end_transaction_at(Instant::now(), cx)
10564 }
10565
10566 pub fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10567 self.end_selection(cx);
10568 if let Some(tx_id) = self
10569 .buffer
10570 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10571 {
10572 self.selection_history
10573 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10574 cx.emit(EditorEvent::TransactionBegun {
10575 transaction_id: tx_id,
10576 })
10577 }
10578 }
10579
10580 pub fn end_transaction_at(
10581 &mut self,
10582 now: Instant,
10583 cx: &mut ViewContext<Self>,
10584 ) -> Option<TransactionId> {
10585 if let Some(transaction_id) = self
10586 .buffer
10587 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10588 {
10589 if let Some((_, end_selections)) =
10590 self.selection_history.transaction_mut(transaction_id)
10591 {
10592 *end_selections = Some(self.selections.disjoint_anchors());
10593 } else {
10594 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10595 }
10596
10597 cx.emit(EditorEvent::Edited { transaction_id });
10598 Some(transaction_id)
10599 } else {
10600 None
10601 }
10602 }
10603
10604 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10605 if self.is_singleton(cx) {
10606 let selection = self.selections.newest::<Point>(cx);
10607
10608 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10609 let range = if selection.is_empty() {
10610 let point = selection.head().to_display_point(&display_map);
10611 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10612 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10613 .to_point(&display_map);
10614 start..end
10615 } else {
10616 selection.range()
10617 };
10618 if display_map.folds_in_range(range).next().is_some() {
10619 self.unfold_lines(&Default::default(), cx)
10620 } else {
10621 self.fold(&Default::default(), cx)
10622 }
10623 } else {
10624 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10625 let mut toggled_buffers = HashSet::default();
10626 for (_, buffer_snapshot, _) in
10627 multi_buffer_snapshot.excerpts_in_ranges(self.selections.disjoint_anchor_ranges())
10628 {
10629 let buffer_id = buffer_snapshot.remote_id();
10630 if toggled_buffers.insert(buffer_id) {
10631 if self.buffer_folded(buffer_id, cx) {
10632 self.unfold_buffer(buffer_id, cx);
10633 } else {
10634 self.fold_buffer(buffer_id, cx);
10635 }
10636 }
10637 }
10638 }
10639 }
10640
10641 pub fn toggle_fold_recursive(
10642 &mut self,
10643 _: &actions::ToggleFoldRecursive,
10644 cx: &mut ViewContext<Self>,
10645 ) {
10646 let selection = self.selections.newest::<Point>(cx);
10647
10648 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10649 let range = if selection.is_empty() {
10650 let point = selection.head().to_display_point(&display_map);
10651 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10652 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10653 .to_point(&display_map);
10654 start..end
10655 } else {
10656 selection.range()
10657 };
10658 if display_map.folds_in_range(range).next().is_some() {
10659 self.unfold_recursive(&Default::default(), cx)
10660 } else {
10661 self.fold_recursive(&Default::default(), cx)
10662 }
10663 }
10664
10665 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10666 if self.is_singleton(cx) {
10667 let mut to_fold = Vec::new();
10668 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10669 let selections = self.selections.all_adjusted(cx);
10670
10671 for selection in selections {
10672 let range = selection.range().sorted();
10673 let buffer_start_row = range.start.row;
10674
10675 if range.start.row != range.end.row {
10676 let mut found = false;
10677 let mut row = range.start.row;
10678 while row <= range.end.row {
10679 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10680 {
10681 found = true;
10682 row = crease.range().end.row + 1;
10683 to_fold.push(crease);
10684 } else {
10685 row += 1
10686 }
10687 }
10688 if found {
10689 continue;
10690 }
10691 }
10692
10693 for row in (0..=range.start.row).rev() {
10694 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10695 if crease.range().end.row >= buffer_start_row {
10696 to_fold.push(crease);
10697 if row <= range.start.row {
10698 break;
10699 }
10700 }
10701 }
10702 }
10703 }
10704
10705 self.fold_creases(to_fold, true, cx);
10706 } else {
10707 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10708 let mut folded_buffers = HashSet::default();
10709 for (_, buffer_snapshot, _) in
10710 multi_buffer_snapshot.excerpts_in_ranges(self.selections.disjoint_anchor_ranges())
10711 {
10712 let buffer_id = buffer_snapshot.remote_id();
10713 if folded_buffers.insert(buffer_id) {
10714 self.fold_buffer(buffer_id, cx);
10715 }
10716 }
10717 }
10718 }
10719
10720 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10721 if !self.buffer.read(cx).is_singleton() {
10722 return;
10723 }
10724
10725 let fold_at_level = fold_at.level;
10726 let snapshot = self.buffer.read(cx).snapshot(cx);
10727 let mut to_fold = Vec::new();
10728 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10729
10730 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10731 while start_row < end_row {
10732 match self
10733 .snapshot(cx)
10734 .crease_for_buffer_row(MultiBufferRow(start_row))
10735 {
10736 Some(crease) => {
10737 let nested_start_row = crease.range().start.row + 1;
10738 let nested_end_row = crease.range().end.row;
10739
10740 if current_level < fold_at_level {
10741 stack.push((nested_start_row, nested_end_row, current_level + 1));
10742 } else if current_level == fold_at_level {
10743 to_fold.push(crease);
10744 }
10745
10746 start_row = nested_end_row + 1;
10747 }
10748 None => start_row += 1,
10749 }
10750 }
10751 }
10752
10753 self.fold_creases(to_fold, true, cx);
10754 }
10755
10756 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10757 if self.buffer.read(cx).is_singleton() {
10758 let mut fold_ranges = Vec::new();
10759 let snapshot = self.buffer.read(cx).snapshot(cx);
10760
10761 for row in 0..snapshot.max_row().0 {
10762 if let Some(foldable_range) =
10763 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10764 {
10765 fold_ranges.push(foldable_range);
10766 }
10767 }
10768
10769 self.fold_creases(fold_ranges, true, cx);
10770 } else {
10771 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10772 editor
10773 .update(&mut cx, |editor, cx| {
10774 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10775 editor.fold_buffer(buffer_id, cx);
10776 }
10777 })
10778 .ok();
10779 });
10780 }
10781 }
10782
10783 pub fn fold_function_bodies(
10784 &mut self,
10785 _: &actions::FoldFunctionBodies,
10786 cx: &mut ViewContext<Self>,
10787 ) {
10788 let snapshot = self.buffer.read(cx).snapshot(cx);
10789 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10790 return;
10791 };
10792 let creases = buffer
10793 .function_body_fold_ranges(0..buffer.len())
10794 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10795 .collect();
10796
10797 self.fold_creases(creases, true, cx);
10798 }
10799
10800 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10801 let mut to_fold = Vec::new();
10802 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10803 let selections = self.selections.all_adjusted(cx);
10804
10805 for selection in selections {
10806 let range = selection.range().sorted();
10807 let buffer_start_row = range.start.row;
10808
10809 if range.start.row != range.end.row {
10810 let mut found = false;
10811 for row in range.start.row..=range.end.row {
10812 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10813 found = true;
10814 to_fold.push(crease);
10815 }
10816 }
10817 if found {
10818 continue;
10819 }
10820 }
10821
10822 for row in (0..=range.start.row).rev() {
10823 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10824 if crease.range().end.row >= buffer_start_row {
10825 to_fold.push(crease);
10826 } else {
10827 break;
10828 }
10829 }
10830 }
10831 }
10832
10833 self.fold_creases(to_fold, true, cx);
10834 }
10835
10836 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10837 let buffer_row = fold_at.buffer_row;
10838 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10839
10840 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10841 let autoscroll = self
10842 .selections
10843 .all::<Point>(cx)
10844 .iter()
10845 .any(|selection| crease.range().overlaps(&selection.range()));
10846
10847 self.fold_creases(vec![crease], autoscroll, cx);
10848 }
10849 }
10850
10851 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10852 if self.is_singleton(cx) {
10853 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10854 let buffer = &display_map.buffer_snapshot;
10855 let selections = self.selections.all::<Point>(cx);
10856 let ranges = selections
10857 .iter()
10858 .map(|s| {
10859 let range = s.display_range(&display_map).sorted();
10860 let mut start = range.start.to_point(&display_map);
10861 let mut end = range.end.to_point(&display_map);
10862 start.column = 0;
10863 end.column = buffer.line_len(MultiBufferRow(end.row));
10864 start..end
10865 })
10866 .collect::<Vec<_>>();
10867
10868 self.unfold_ranges(&ranges, true, true, cx);
10869 } else {
10870 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10871 let mut unfolded_buffers = HashSet::default();
10872 for (_, buffer_snapshot, _) in
10873 multi_buffer_snapshot.excerpts_in_ranges(self.selections.disjoint_anchor_ranges())
10874 {
10875 let buffer_id = buffer_snapshot.remote_id();
10876 if unfolded_buffers.insert(buffer_id) {
10877 self.unfold_buffer(buffer_id, cx);
10878 }
10879 }
10880 }
10881 }
10882
10883 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10884 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10885 let selections = self.selections.all::<Point>(cx);
10886 let ranges = selections
10887 .iter()
10888 .map(|s| {
10889 let mut range = s.display_range(&display_map).sorted();
10890 *range.start.column_mut() = 0;
10891 *range.end.column_mut() = display_map.line_len(range.end.row());
10892 let start = range.start.to_point(&display_map);
10893 let end = range.end.to_point(&display_map);
10894 start..end
10895 })
10896 .collect::<Vec<_>>();
10897
10898 self.unfold_ranges(&ranges, true, true, cx);
10899 }
10900
10901 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10902 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10903
10904 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10905 ..Point::new(
10906 unfold_at.buffer_row.0,
10907 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10908 );
10909
10910 let autoscroll = self
10911 .selections
10912 .all::<Point>(cx)
10913 .iter()
10914 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10915
10916 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10917 }
10918
10919 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10920 if self.buffer.read(cx).is_singleton() {
10921 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10922 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10923 } else {
10924 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10925 editor
10926 .update(&mut cx, |editor, cx| {
10927 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10928 editor.unfold_buffer(buffer_id, cx);
10929 }
10930 })
10931 .ok();
10932 });
10933 }
10934 }
10935
10936 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10937 let selections = self.selections.all::<Point>(cx);
10938 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10939 let line_mode = self.selections.line_mode;
10940 let ranges = selections
10941 .into_iter()
10942 .map(|s| {
10943 if line_mode {
10944 let start = Point::new(s.start.row, 0);
10945 let end = Point::new(
10946 s.end.row,
10947 display_map
10948 .buffer_snapshot
10949 .line_len(MultiBufferRow(s.end.row)),
10950 );
10951 Crease::simple(start..end, display_map.fold_placeholder.clone())
10952 } else {
10953 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10954 }
10955 })
10956 .collect::<Vec<_>>();
10957 self.fold_creases(ranges, true, cx);
10958 }
10959
10960 pub fn fold_ranges<T: ToOffset + Clone>(
10961 &mut self,
10962 ranges: Vec<Range<T>>,
10963 auto_scroll: bool,
10964 cx: &mut ViewContext<Self>,
10965 ) {
10966 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10967 let ranges = ranges
10968 .into_iter()
10969 .map(|r| Crease::simple(r, display_map.fold_placeholder.clone()))
10970 .collect::<Vec<_>>();
10971 self.fold_creases(ranges, auto_scroll, cx);
10972 }
10973
10974 pub fn fold_creases<T: ToOffset + Clone>(
10975 &mut self,
10976 creases: Vec<Crease<T>>,
10977 auto_scroll: bool,
10978 cx: &mut ViewContext<Self>,
10979 ) {
10980 if creases.is_empty() {
10981 return;
10982 }
10983
10984 let mut buffers_affected = HashSet::default();
10985 let multi_buffer = self.buffer().read(cx);
10986 for crease in &creases {
10987 if let Some((_, buffer, _)) =
10988 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10989 {
10990 buffers_affected.insert(buffer.read(cx).remote_id());
10991 };
10992 }
10993
10994 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10995
10996 if auto_scroll {
10997 self.request_autoscroll(Autoscroll::fit(), cx);
10998 }
10999
11000 for buffer_id in buffers_affected {
11001 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
11002 }
11003
11004 cx.notify();
11005
11006 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11007 // Clear diagnostics block when folding a range that contains it.
11008 let snapshot = self.snapshot(cx);
11009 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11010 drop(snapshot);
11011 self.active_diagnostics = Some(active_diagnostics);
11012 self.dismiss_diagnostics(cx);
11013 } else {
11014 self.active_diagnostics = Some(active_diagnostics);
11015 }
11016 }
11017
11018 self.scrollbar_marker_state.dirty = true;
11019 }
11020
11021 /// Removes any folds whose ranges intersect any of the given ranges.
11022 pub fn unfold_ranges<T: ToOffset + Clone>(
11023 &mut self,
11024 ranges: &[Range<T>],
11025 inclusive: bool,
11026 auto_scroll: bool,
11027 cx: &mut ViewContext<Self>,
11028 ) {
11029 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11030 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
11031 });
11032 }
11033
11034 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
11035 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
11036 return;
11037 }
11038 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
11039 return;
11040 };
11041 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
11042 self.display_map
11043 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
11044 cx.emit(EditorEvent::BufferFoldToggled {
11045 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
11046 folded: true,
11047 });
11048 cx.notify();
11049 }
11050
11051 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
11052 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
11053 return;
11054 }
11055 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
11056 return;
11057 };
11058 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
11059 self.display_map.update(cx, |display_map, cx| {
11060 display_map.unfold_buffer(buffer_id, cx);
11061 });
11062 cx.emit(EditorEvent::BufferFoldToggled {
11063 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
11064 folded: false,
11065 });
11066 cx.notify();
11067 }
11068
11069 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
11070 self.display_map.read(cx).buffer_folded(buffer)
11071 }
11072
11073 /// Removes any folds with the given ranges.
11074 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11075 &mut self,
11076 ranges: &[Range<T>],
11077 type_id: TypeId,
11078 auto_scroll: bool,
11079 cx: &mut ViewContext<Self>,
11080 ) {
11081 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11082 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11083 });
11084 }
11085
11086 fn remove_folds_with<T: ToOffset + Clone>(
11087 &mut self,
11088 ranges: &[Range<T>],
11089 auto_scroll: bool,
11090 cx: &mut ViewContext<Self>,
11091 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11092 ) {
11093 if ranges.is_empty() {
11094 return;
11095 }
11096
11097 let mut buffers_affected = HashSet::default();
11098 let multi_buffer = self.buffer().read(cx);
11099 for range in ranges {
11100 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11101 buffers_affected.insert(buffer.read(cx).remote_id());
11102 };
11103 }
11104
11105 self.display_map.update(cx, update);
11106
11107 if auto_scroll {
11108 self.request_autoscroll(Autoscroll::fit(), cx);
11109 }
11110
11111 for buffer_id in buffers_affected {
11112 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
11113 }
11114
11115 cx.notify();
11116 self.scrollbar_marker_state.dirty = true;
11117 self.active_indent_guides_state.dirty = true;
11118 }
11119
11120 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11121 self.display_map.read(cx).fold_placeholder.clone()
11122 }
11123
11124 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11125 if hovered != self.gutter_hovered {
11126 self.gutter_hovered = hovered;
11127 cx.notify();
11128 }
11129 }
11130
11131 pub fn insert_blocks(
11132 &mut self,
11133 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11134 autoscroll: Option<Autoscroll>,
11135 cx: &mut ViewContext<Self>,
11136 ) -> Vec<CustomBlockId> {
11137 let blocks = self
11138 .display_map
11139 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11140 if let Some(autoscroll) = autoscroll {
11141 self.request_autoscroll(autoscroll, cx);
11142 }
11143 cx.notify();
11144 blocks
11145 }
11146
11147 pub fn resize_blocks(
11148 &mut self,
11149 heights: HashMap<CustomBlockId, u32>,
11150 autoscroll: Option<Autoscroll>,
11151 cx: &mut ViewContext<Self>,
11152 ) {
11153 self.display_map
11154 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11155 if let Some(autoscroll) = autoscroll {
11156 self.request_autoscroll(autoscroll, cx);
11157 }
11158 cx.notify();
11159 }
11160
11161 pub fn replace_blocks(
11162 &mut self,
11163 renderers: HashMap<CustomBlockId, RenderBlock>,
11164 autoscroll: Option<Autoscroll>,
11165 cx: &mut ViewContext<Self>,
11166 ) {
11167 self.display_map
11168 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11169 if let Some(autoscroll) = autoscroll {
11170 self.request_autoscroll(autoscroll, cx);
11171 }
11172 cx.notify();
11173 }
11174
11175 pub fn remove_blocks(
11176 &mut self,
11177 block_ids: HashSet<CustomBlockId>,
11178 autoscroll: Option<Autoscroll>,
11179 cx: &mut ViewContext<Self>,
11180 ) {
11181 self.display_map.update(cx, |display_map, cx| {
11182 display_map.remove_blocks(block_ids, cx)
11183 });
11184 if let Some(autoscroll) = autoscroll {
11185 self.request_autoscroll(autoscroll, cx);
11186 }
11187 cx.notify();
11188 }
11189
11190 pub fn row_for_block(
11191 &self,
11192 block_id: CustomBlockId,
11193 cx: &mut ViewContext<Self>,
11194 ) -> Option<DisplayRow> {
11195 self.display_map
11196 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11197 }
11198
11199 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11200 self.focused_block = Some(focused_block);
11201 }
11202
11203 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11204 self.focused_block.take()
11205 }
11206
11207 pub fn insert_creases(
11208 &mut self,
11209 creases: impl IntoIterator<Item = Crease<Anchor>>,
11210 cx: &mut ViewContext<Self>,
11211 ) -> Vec<CreaseId> {
11212 self.display_map
11213 .update(cx, |map, cx| map.insert_creases(creases, cx))
11214 }
11215
11216 pub fn remove_creases(
11217 &mut self,
11218 ids: impl IntoIterator<Item = CreaseId>,
11219 cx: &mut ViewContext<Self>,
11220 ) {
11221 self.display_map
11222 .update(cx, |map, cx| map.remove_creases(ids, cx));
11223 }
11224
11225 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11226 self.display_map
11227 .update(cx, |map, cx| map.snapshot(cx))
11228 .longest_row()
11229 }
11230
11231 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11232 self.display_map
11233 .update(cx, |map, cx| map.snapshot(cx))
11234 .max_point()
11235 }
11236
11237 pub fn text(&self, cx: &AppContext) -> String {
11238 self.buffer.read(cx).read(cx).text()
11239 }
11240
11241 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11242 let text = self.text(cx);
11243 let text = text.trim();
11244
11245 if text.is_empty() {
11246 return None;
11247 }
11248
11249 Some(text.to_string())
11250 }
11251
11252 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11253 self.transact(cx, |this, cx| {
11254 this.buffer
11255 .read(cx)
11256 .as_singleton()
11257 .expect("you can only call set_text on editors for singleton buffers")
11258 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11259 });
11260 }
11261
11262 pub fn display_text(&self, cx: &mut AppContext) -> String {
11263 self.display_map
11264 .update(cx, |map, cx| map.snapshot(cx))
11265 .text()
11266 }
11267
11268 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11269 let mut wrap_guides = smallvec::smallvec![];
11270
11271 if self.show_wrap_guides == Some(false) {
11272 return wrap_guides;
11273 }
11274
11275 let settings = self.buffer.read(cx).settings_at(0, cx);
11276 if settings.show_wrap_guides {
11277 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11278 wrap_guides.push((soft_wrap as usize, true));
11279 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11280 wrap_guides.push((soft_wrap as usize, true));
11281 }
11282 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11283 }
11284
11285 wrap_guides
11286 }
11287
11288 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11289 let settings = self.buffer.read(cx).settings_at(0, cx);
11290 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11291 match mode {
11292 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11293 SoftWrap::None
11294 }
11295 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11296 language_settings::SoftWrap::PreferredLineLength => {
11297 SoftWrap::Column(settings.preferred_line_length)
11298 }
11299 language_settings::SoftWrap::Bounded => {
11300 SoftWrap::Bounded(settings.preferred_line_length)
11301 }
11302 }
11303 }
11304
11305 pub fn set_soft_wrap_mode(
11306 &mut self,
11307 mode: language_settings::SoftWrap,
11308 cx: &mut ViewContext<Self>,
11309 ) {
11310 self.soft_wrap_mode_override = Some(mode);
11311 cx.notify();
11312 }
11313
11314 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11315 self.text_style_refinement = Some(style);
11316 }
11317
11318 /// called by the Element so we know what style we were most recently rendered with.
11319 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11320 let rem_size = cx.rem_size();
11321 self.display_map.update(cx, |map, cx| {
11322 map.set_font(
11323 style.text.font(),
11324 style.text.font_size.to_pixels(rem_size),
11325 cx,
11326 )
11327 });
11328 self.style = Some(style);
11329 }
11330
11331 pub fn style(&self) -> Option<&EditorStyle> {
11332 self.style.as_ref()
11333 }
11334
11335 // Called by the element. This method is not designed to be called outside of the editor
11336 // element's layout code because it does not notify when rewrapping is computed synchronously.
11337 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11338 self.display_map
11339 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11340 }
11341
11342 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11343 if self.soft_wrap_mode_override.is_some() {
11344 self.soft_wrap_mode_override.take();
11345 } else {
11346 let soft_wrap = match self.soft_wrap_mode(cx) {
11347 SoftWrap::GitDiff => return,
11348 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11349 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11350 language_settings::SoftWrap::None
11351 }
11352 };
11353 self.soft_wrap_mode_override = Some(soft_wrap);
11354 }
11355 cx.notify();
11356 }
11357
11358 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11359 let Some(workspace) = self.workspace() else {
11360 return;
11361 };
11362 let fs = workspace.read(cx).app_state().fs.clone();
11363 let current_show = TabBarSettings::get_global(cx).show;
11364 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11365 setting.show = Some(!current_show);
11366 });
11367 }
11368
11369 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11370 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11371 self.buffer
11372 .read(cx)
11373 .settings_at(0, cx)
11374 .indent_guides
11375 .enabled
11376 });
11377 self.show_indent_guides = Some(!currently_enabled);
11378 cx.notify();
11379 }
11380
11381 fn should_show_indent_guides(&self) -> Option<bool> {
11382 self.show_indent_guides
11383 }
11384
11385 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11386 let mut editor_settings = EditorSettings::get_global(cx).clone();
11387 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11388 EditorSettings::override_global(editor_settings, cx);
11389 }
11390
11391 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11392 self.use_relative_line_numbers
11393 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11394 }
11395
11396 pub fn toggle_relative_line_numbers(
11397 &mut self,
11398 _: &ToggleRelativeLineNumbers,
11399 cx: &mut ViewContext<Self>,
11400 ) {
11401 let is_relative = self.should_use_relative_line_numbers(cx);
11402 self.set_relative_line_number(Some(!is_relative), cx)
11403 }
11404
11405 pub fn set_relative_line_number(
11406 &mut self,
11407 is_relative: Option<bool>,
11408 cx: &mut ViewContext<Self>,
11409 ) {
11410 self.use_relative_line_numbers = is_relative;
11411 cx.notify();
11412 }
11413
11414 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11415 self.show_gutter = show_gutter;
11416 cx.notify();
11417 }
11418
11419 pub fn set_show_scrollbars(&mut self, show_scrollbars: bool, cx: &mut ViewContext<Self>) {
11420 self.show_scrollbars = show_scrollbars;
11421 cx.notify();
11422 }
11423
11424 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11425 self.show_line_numbers = Some(show_line_numbers);
11426 cx.notify();
11427 }
11428
11429 pub fn set_show_git_diff_gutter(
11430 &mut self,
11431 show_git_diff_gutter: bool,
11432 cx: &mut ViewContext<Self>,
11433 ) {
11434 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11435 cx.notify();
11436 }
11437
11438 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11439 self.show_code_actions = Some(show_code_actions);
11440 cx.notify();
11441 }
11442
11443 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11444 self.show_runnables = Some(show_runnables);
11445 cx.notify();
11446 }
11447
11448 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11449 if self.display_map.read(cx).masked != masked {
11450 self.display_map.update(cx, |map, _| map.masked = masked);
11451 }
11452 cx.notify()
11453 }
11454
11455 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11456 self.show_wrap_guides = Some(show_wrap_guides);
11457 cx.notify();
11458 }
11459
11460 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11461 self.show_indent_guides = Some(show_indent_guides);
11462 cx.notify();
11463 }
11464
11465 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11466 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11467 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11468 if let Some(dir) = file.abs_path(cx).parent() {
11469 return Some(dir.to_owned());
11470 }
11471 }
11472
11473 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11474 return Some(project_path.path.to_path_buf());
11475 }
11476 }
11477
11478 None
11479 }
11480
11481 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11482 self.active_excerpt(cx)?
11483 .1
11484 .read(cx)
11485 .file()
11486 .and_then(|f| f.as_local())
11487 }
11488
11489 fn target_file_abs_path(&self, cx: &mut ViewContext<Self>) -> Option<PathBuf> {
11490 self.active_excerpt(cx).and_then(|(_, buffer, _)| {
11491 let project_path = buffer.read(cx).project_path(cx)?;
11492 let project = self.project.as_ref()?.read(cx);
11493 project.absolute_path(&project_path, cx)
11494 })
11495 }
11496
11497 fn target_file_path(&self, cx: &mut ViewContext<Self>) -> Option<PathBuf> {
11498 self.active_excerpt(cx).and_then(|(_, buffer, _)| {
11499 let project_path = buffer.read(cx).project_path(cx)?;
11500 let project = self.project.as_ref()?.read(cx);
11501 let entry = project.entry_for_path(&project_path, cx)?;
11502 let path = entry.path.to_path_buf();
11503 Some(path)
11504 })
11505 }
11506
11507 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11508 if let Some(target) = self.target_file(cx) {
11509 cx.reveal_path(&target.abs_path(cx));
11510 }
11511 }
11512
11513 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11514 if let Some(path) = self.target_file_abs_path(cx) {
11515 if let Some(path) = path.to_str() {
11516 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11517 }
11518 }
11519 }
11520
11521 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11522 if let Some(path) = self.target_file_path(cx) {
11523 if let Some(path) = path.to_str() {
11524 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11525 }
11526 }
11527 }
11528
11529 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11530 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11531
11532 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11533 self.start_git_blame(true, cx);
11534 }
11535
11536 cx.notify();
11537 }
11538
11539 pub fn toggle_git_blame_inline(
11540 &mut self,
11541 _: &ToggleGitBlameInline,
11542 cx: &mut ViewContext<Self>,
11543 ) {
11544 self.toggle_git_blame_inline_internal(true, cx);
11545 cx.notify();
11546 }
11547
11548 pub fn git_blame_inline_enabled(&self) -> bool {
11549 self.git_blame_inline_enabled
11550 }
11551
11552 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11553 self.show_selection_menu = self
11554 .show_selection_menu
11555 .map(|show_selections_menu| !show_selections_menu)
11556 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11557
11558 cx.notify();
11559 }
11560
11561 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11562 self.show_selection_menu
11563 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11564 }
11565
11566 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11567 if let Some(project) = self.project.as_ref() {
11568 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11569 return;
11570 };
11571
11572 if buffer.read(cx).file().is_none() {
11573 return;
11574 }
11575
11576 let focused = self.focus_handle(cx).contains_focused(cx);
11577
11578 let project = project.clone();
11579 let blame =
11580 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11581 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11582 self.blame = Some(blame);
11583 }
11584 }
11585
11586 fn toggle_git_blame_inline_internal(
11587 &mut self,
11588 user_triggered: bool,
11589 cx: &mut ViewContext<Self>,
11590 ) {
11591 if self.git_blame_inline_enabled {
11592 self.git_blame_inline_enabled = false;
11593 self.show_git_blame_inline = false;
11594 self.show_git_blame_inline_delay_task.take();
11595 } else {
11596 self.git_blame_inline_enabled = true;
11597 self.start_git_blame_inline(user_triggered, cx);
11598 }
11599
11600 cx.notify();
11601 }
11602
11603 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11604 self.start_git_blame(user_triggered, cx);
11605
11606 if ProjectSettings::get_global(cx)
11607 .git
11608 .inline_blame_delay()
11609 .is_some()
11610 {
11611 self.start_inline_blame_timer(cx);
11612 } else {
11613 self.show_git_blame_inline = true
11614 }
11615 }
11616
11617 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11618 self.blame.as_ref()
11619 }
11620
11621 pub fn show_git_blame_gutter(&self) -> bool {
11622 self.show_git_blame_gutter
11623 }
11624
11625 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11626 self.show_git_blame_gutter && self.has_blame_entries(cx)
11627 }
11628
11629 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11630 self.show_git_blame_inline
11631 && self.focus_handle.is_focused(cx)
11632 && !self.newest_selection_head_on_empty_line(cx)
11633 && self.has_blame_entries(cx)
11634 }
11635
11636 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11637 self.blame()
11638 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11639 }
11640
11641 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11642 let cursor_anchor = self.selections.newest_anchor().head();
11643
11644 let snapshot = self.buffer.read(cx).snapshot(cx);
11645 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11646
11647 snapshot.line_len(buffer_row) == 0
11648 }
11649
11650 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11651 let buffer_and_selection = maybe!({
11652 let selection = self.selections.newest::<Point>(cx);
11653 let selection_range = selection.range();
11654
11655 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11656 (buffer, selection_range.start.row..selection_range.end.row)
11657 } else {
11658 let multi_buffer = self.buffer().read(cx);
11659 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
11660 let buffer_ranges = multi_buffer_snapshot.range_to_buffer_ranges(selection_range);
11661
11662 let (excerpt, range) = if selection.reversed {
11663 buffer_ranges.first()
11664 } else {
11665 buffer_ranges.last()
11666 }?;
11667
11668 let snapshot = excerpt.buffer();
11669 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11670 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11671 (
11672 multi_buffer.buffer(excerpt.buffer_id()).unwrap().clone(),
11673 selection,
11674 )
11675 };
11676
11677 Some((buffer, selection))
11678 });
11679
11680 let Some((buffer, selection)) = buffer_and_selection else {
11681 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11682 };
11683
11684 let Some(project) = self.project.as_ref() else {
11685 return Task::ready(Err(anyhow!("editor does not have project")));
11686 };
11687
11688 project.update(cx, |project, cx| {
11689 project.get_permalink_to_line(&buffer, selection, cx)
11690 })
11691 }
11692
11693 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11694 let permalink_task = self.get_permalink_to_line(cx);
11695 let workspace = self.workspace();
11696
11697 cx.spawn(|_, mut cx| async move {
11698 match permalink_task.await {
11699 Ok(permalink) => {
11700 cx.update(|cx| {
11701 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11702 })
11703 .ok();
11704 }
11705 Err(err) => {
11706 let message = format!("Failed to copy permalink: {err}");
11707
11708 Err::<(), anyhow::Error>(err).log_err();
11709
11710 if let Some(workspace) = workspace {
11711 workspace
11712 .update(&mut cx, |workspace, cx| {
11713 struct CopyPermalinkToLine;
11714
11715 workspace.show_toast(
11716 Toast::new(
11717 NotificationId::unique::<CopyPermalinkToLine>(),
11718 message,
11719 ),
11720 cx,
11721 )
11722 })
11723 .ok();
11724 }
11725 }
11726 }
11727 })
11728 .detach();
11729 }
11730
11731 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11732 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11733 if let Some(file) = self.target_file(cx) {
11734 if let Some(path) = file.path().to_str() {
11735 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11736 }
11737 }
11738 }
11739
11740 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11741 let permalink_task = self.get_permalink_to_line(cx);
11742 let workspace = self.workspace();
11743
11744 cx.spawn(|_, mut cx| async move {
11745 match permalink_task.await {
11746 Ok(permalink) => {
11747 cx.update(|cx| {
11748 cx.open_url(permalink.as_ref());
11749 })
11750 .ok();
11751 }
11752 Err(err) => {
11753 let message = format!("Failed to open permalink: {err}");
11754
11755 Err::<(), anyhow::Error>(err).log_err();
11756
11757 if let Some(workspace) = workspace {
11758 workspace
11759 .update(&mut cx, |workspace, cx| {
11760 struct OpenPermalinkToLine;
11761
11762 workspace.show_toast(
11763 Toast::new(
11764 NotificationId::unique::<OpenPermalinkToLine>(),
11765 message,
11766 ),
11767 cx,
11768 )
11769 })
11770 .ok();
11771 }
11772 }
11773 }
11774 })
11775 .detach();
11776 }
11777
11778 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11779 self.insert_uuid(UuidVersion::V4, cx);
11780 }
11781
11782 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11783 self.insert_uuid(UuidVersion::V7, cx);
11784 }
11785
11786 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11787 self.transact(cx, |this, cx| {
11788 let edits = this
11789 .selections
11790 .all::<Point>(cx)
11791 .into_iter()
11792 .map(|selection| {
11793 let uuid = match version {
11794 UuidVersion::V4 => uuid::Uuid::new_v4(),
11795 UuidVersion::V7 => uuid::Uuid::now_v7(),
11796 };
11797
11798 (selection.range(), uuid.to_string())
11799 });
11800 this.edit(edits, cx);
11801 this.refresh_inline_completion(true, false, cx);
11802 });
11803 }
11804
11805 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11806 /// last highlight added will be used.
11807 ///
11808 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11809 pub fn highlight_rows<T: 'static>(
11810 &mut self,
11811 range: Range<Anchor>,
11812 color: Hsla,
11813 should_autoscroll: bool,
11814 cx: &mut ViewContext<Self>,
11815 ) {
11816 let snapshot = self.buffer().read(cx).snapshot(cx);
11817 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11818 let ix = row_highlights.binary_search_by(|highlight| {
11819 Ordering::Equal
11820 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11821 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11822 });
11823
11824 if let Err(mut ix) = ix {
11825 let index = post_inc(&mut self.highlight_order);
11826
11827 // If this range intersects with the preceding highlight, then merge it with
11828 // the preceding highlight. Otherwise insert a new highlight.
11829 let mut merged = false;
11830 if ix > 0 {
11831 let prev_highlight = &mut row_highlights[ix - 1];
11832 if prev_highlight
11833 .range
11834 .end
11835 .cmp(&range.start, &snapshot)
11836 .is_ge()
11837 {
11838 ix -= 1;
11839 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11840 prev_highlight.range.end = range.end;
11841 }
11842 merged = true;
11843 prev_highlight.index = index;
11844 prev_highlight.color = color;
11845 prev_highlight.should_autoscroll = should_autoscroll;
11846 }
11847 }
11848
11849 if !merged {
11850 row_highlights.insert(
11851 ix,
11852 RowHighlight {
11853 range: range.clone(),
11854 index,
11855 color,
11856 should_autoscroll,
11857 },
11858 );
11859 }
11860
11861 // If any of the following highlights intersect with this one, merge them.
11862 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11863 let highlight = &row_highlights[ix];
11864 if next_highlight
11865 .range
11866 .start
11867 .cmp(&highlight.range.end, &snapshot)
11868 .is_le()
11869 {
11870 if next_highlight
11871 .range
11872 .end
11873 .cmp(&highlight.range.end, &snapshot)
11874 .is_gt()
11875 {
11876 row_highlights[ix].range.end = next_highlight.range.end;
11877 }
11878 row_highlights.remove(ix + 1);
11879 } else {
11880 break;
11881 }
11882 }
11883 }
11884 }
11885
11886 /// Remove any highlighted row ranges of the given type that intersect the
11887 /// given ranges.
11888 pub fn remove_highlighted_rows<T: 'static>(
11889 &mut self,
11890 ranges_to_remove: Vec<Range<Anchor>>,
11891 cx: &mut ViewContext<Self>,
11892 ) {
11893 let snapshot = self.buffer().read(cx).snapshot(cx);
11894 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11895 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11896 row_highlights.retain(|highlight| {
11897 while let Some(range_to_remove) = ranges_to_remove.peek() {
11898 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11899 Ordering::Less | Ordering::Equal => {
11900 ranges_to_remove.next();
11901 }
11902 Ordering::Greater => {
11903 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11904 Ordering::Less | Ordering::Equal => {
11905 return false;
11906 }
11907 Ordering::Greater => break,
11908 }
11909 }
11910 }
11911 }
11912
11913 true
11914 })
11915 }
11916
11917 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11918 pub fn clear_row_highlights<T: 'static>(&mut self) {
11919 self.highlighted_rows.remove(&TypeId::of::<T>());
11920 }
11921
11922 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11923 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11924 self.highlighted_rows
11925 .get(&TypeId::of::<T>())
11926 .map_or(&[] as &[_], |vec| vec.as_slice())
11927 .iter()
11928 .map(|highlight| (highlight.range.clone(), highlight.color))
11929 }
11930
11931 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11932 /// Returns a map of display rows that are highlighted and their corresponding highlight color.
11933 /// Allows to ignore certain kinds of highlights.
11934 pub fn highlighted_display_rows(
11935 &mut self,
11936 cx: &mut WindowContext,
11937 ) -> BTreeMap<DisplayRow, Hsla> {
11938 let snapshot = self.snapshot(cx);
11939 let mut used_highlight_orders = HashMap::default();
11940 self.highlighted_rows
11941 .iter()
11942 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11943 .fold(
11944 BTreeMap::<DisplayRow, Hsla>::new(),
11945 |mut unique_rows, highlight| {
11946 let start = highlight.range.start.to_display_point(&snapshot);
11947 let end = highlight.range.end.to_display_point(&snapshot);
11948 let start_row = start.row().0;
11949 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11950 && end.column() == 0
11951 {
11952 end.row().0.saturating_sub(1)
11953 } else {
11954 end.row().0
11955 };
11956 for row in start_row..=end_row {
11957 let used_index =
11958 used_highlight_orders.entry(row).or_insert(highlight.index);
11959 if highlight.index >= *used_index {
11960 *used_index = highlight.index;
11961 unique_rows.insert(DisplayRow(row), highlight.color);
11962 }
11963 }
11964 unique_rows
11965 },
11966 )
11967 }
11968
11969 pub fn highlighted_display_row_for_autoscroll(
11970 &self,
11971 snapshot: &DisplaySnapshot,
11972 ) -> Option<DisplayRow> {
11973 self.highlighted_rows
11974 .values()
11975 .flat_map(|highlighted_rows| highlighted_rows.iter())
11976 .filter_map(|highlight| {
11977 if highlight.should_autoscroll {
11978 Some(highlight.range.start.to_display_point(snapshot).row())
11979 } else {
11980 None
11981 }
11982 })
11983 .min()
11984 }
11985
11986 pub fn set_search_within_ranges(
11987 &mut self,
11988 ranges: &[Range<Anchor>],
11989 cx: &mut ViewContext<Self>,
11990 ) {
11991 self.highlight_background::<SearchWithinRange>(
11992 ranges,
11993 |colors| colors.editor_document_highlight_read_background,
11994 cx,
11995 )
11996 }
11997
11998 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11999 self.breadcrumb_header = Some(new_header);
12000 }
12001
12002 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12003 self.clear_background_highlights::<SearchWithinRange>(cx);
12004 }
12005
12006 pub fn highlight_background<T: 'static>(
12007 &mut self,
12008 ranges: &[Range<Anchor>],
12009 color_fetcher: fn(&ThemeColors) -> Hsla,
12010 cx: &mut ViewContext<Self>,
12011 ) {
12012 self.background_highlights
12013 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12014 self.scrollbar_marker_state.dirty = true;
12015 cx.notify();
12016 }
12017
12018 pub fn clear_background_highlights<T: 'static>(
12019 &mut self,
12020 cx: &mut ViewContext<Self>,
12021 ) -> Option<BackgroundHighlight> {
12022 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12023 if !text_highlights.1.is_empty() {
12024 self.scrollbar_marker_state.dirty = true;
12025 cx.notify();
12026 }
12027 Some(text_highlights)
12028 }
12029
12030 pub fn highlight_gutter<T: 'static>(
12031 &mut self,
12032 ranges: &[Range<Anchor>],
12033 color_fetcher: fn(&AppContext) -> Hsla,
12034 cx: &mut ViewContext<Self>,
12035 ) {
12036 self.gutter_highlights
12037 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12038 cx.notify();
12039 }
12040
12041 pub fn clear_gutter_highlights<T: 'static>(
12042 &mut self,
12043 cx: &mut ViewContext<Self>,
12044 ) -> Option<GutterHighlight> {
12045 cx.notify();
12046 self.gutter_highlights.remove(&TypeId::of::<T>())
12047 }
12048
12049 #[cfg(feature = "test-support")]
12050 pub fn all_text_background_highlights(
12051 &mut self,
12052 cx: &mut ViewContext<Self>,
12053 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12054 let snapshot = self.snapshot(cx);
12055 let buffer = &snapshot.buffer_snapshot;
12056 let start = buffer.anchor_before(0);
12057 let end = buffer.anchor_after(buffer.len());
12058 let theme = cx.theme().colors();
12059 self.background_highlights_in_range(start..end, &snapshot, theme)
12060 }
12061
12062 #[cfg(feature = "test-support")]
12063 pub fn search_background_highlights(
12064 &mut self,
12065 cx: &mut ViewContext<Self>,
12066 ) -> Vec<Range<Point>> {
12067 let snapshot = self.buffer().read(cx).snapshot(cx);
12068
12069 let highlights = self
12070 .background_highlights
12071 .get(&TypeId::of::<items::BufferSearchHighlights>());
12072
12073 if let Some((_color, ranges)) = highlights {
12074 ranges
12075 .iter()
12076 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12077 .collect_vec()
12078 } else {
12079 vec![]
12080 }
12081 }
12082
12083 fn document_highlights_for_position<'a>(
12084 &'a self,
12085 position: Anchor,
12086 buffer: &'a MultiBufferSnapshot,
12087 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12088 let read_highlights = self
12089 .background_highlights
12090 .get(&TypeId::of::<DocumentHighlightRead>())
12091 .map(|h| &h.1);
12092 let write_highlights = self
12093 .background_highlights
12094 .get(&TypeId::of::<DocumentHighlightWrite>())
12095 .map(|h| &h.1);
12096 let left_position = position.bias_left(buffer);
12097 let right_position = position.bias_right(buffer);
12098 read_highlights
12099 .into_iter()
12100 .chain(write_highlights)
12101 .flat_map(move |ranges| {
12102 let start_ix = match ranges.binary_search_by(|probe| {
12103 let cmp = probe.end.cmp(&left_position, buffer);
12104 if cmp.is_ge() {
12105 Ordering::Greater
12106 } else {
12107 Ordering::Less
12108 }
12109 }) {
12110 Ok(i) | Err(i) => i,
12111 };
12112
12113 ranges[start_ix..]
12114 .iter()
12115 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12116 })
12117 }
12118
12119 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12120 self.background_highlights
12121 .get(&TypeId::of::<T>())
12122 .map_or(false, |(_, highlights)| !highlights.is_empty())
12123 }
12124
12125 pub fn background_highlights_in_range(
12126 &self,
12127 search_range: Range<Anchor>,
12128 display_snapshot: &DisplaySnapshot,
12129 theme: &ThemeColors,
12130 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12131 let mut results = Vec::new();
12132 for (color_fetcher, ranges) in self.background_highlights.values() {
12133 let color = color_fetcher(theme);
12134 let start_ix = match ranges.binary_search_by(|probe| {
12135 let cmp = probe
12136 .end
12137 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12138 if cmp.is_gt() {
12139 Ordering::Greater
12140 } else {
12141 Ordering::Less
12142 }
12143 }) {
12144 Ok(i) | Err(i) => i,
12145 };
12146 for range in &ranges[start_ix..] {
12147 if range
12148 .start
12149 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12150 .is_ge()
12151 {
12152 break;
12153 }
12154
12155 let start = range.start.to_display_point(display_snapshot);
12156 let end = range.end.to_display_point(display_snapshot);
12157 results.push((start..end, color))
12158 }
12159 }
12160 results
12161 }
12162
12163 pub fn background_highlight_row_ranges<T: 'static>(
12164 &self,
12165 search_range: Range<Anchor>,
12166 display_snapshot: &DisplaySnapshot,
12167 count: usize,
12168 ) -> Vec<RangeInclusive<DisplayPoint>> {
12169 let mut results = Vec::new();
12170 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12171 return vec![];
12172 };
12173
12174 let start_ix = match ranges.binary_search_by(|probe| {
12175 let cmp = probe
12176 .end
12177 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12178 if cmp.is_gt() {
12179 Ordering::Greater
12180 } else {
12181 Ordering::Less
12182 }
12183 }) {
12184 Ok(i) | Err(i) => i,
12185 };
12186 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12187 if let (Some(start_display), Some(end_display)) = (start, end) {
12188 results.push(
12189 start_display.to_display_point(display_snapshot)
12190 ..=end_display.to_display_point(display_snapshot),
12191 );
12192 }
12193 };
12194 let mut start_row: Option<Point> = None;
12195 let mut end_row: Option<Point> = None;
12196 if ranges.len() > count {
12197 return Vec::new();
12198 }
12199 for range in &ranges[start_ix..] {
12200 if range
12201 .start
12202 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12203 .is_ge()
12204 {
12205 break;
12206 }
12207 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12208 if let Some(current_row) = &end_row {
12209 if end.row == current_row.row {
12210 continue;
12211 }
12212 }
12213 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12214 if start_row.is_none() {
12215 assert_eq!(end_row, None);
12216 start_row = Some(start);
12217 end_row = Some(end);
12218 continue;
12219 }
12220 if let Some(current_end) = end_row.as_mut() {
12221 if start.row > current_end.row + 1 {
12222 push_region(start_row, end_row);
12223 start_row = Some(start);
12224 end_row = Some(end);
12225 } else {
12226 // Merge two hunks.
12227 *current_end = end;
12228 }
12229 } else {
12230 unreachable!();
12231 }
12232 }
12233 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12234 push_region(start_row, end_row);
12235 results
12236 }
12237
12238 pub fn gutter_highlights_in_range(
12239 &self,
12240 search_range: Range<Anchor>,
12241 display_snapshot: &DisplaySnapshot,
12242 cx: &AppContext,
12243 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12244 let mut results = Vec::new();
12245 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12246 let color = color_fetcher(cx);
12247 let start_ix = match ranges.binary_search_by(|probe| {
12248 let cmp = probe
12249 .end
12250 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12251 if cmp.is_gt() {
12252 Ordering::Greater
12253 } else {
12254 Ordering::Less
12255 }
12256 }) {
12257 Ok(i) | Err(i) => i,
12258 };
12259 for range in &ranges[start_ix..] {
12260 if range
12261 .start
12262 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12263 .is_ge()
12264 {
12265 break;
12266 }
12267
12268 let start = range.start.to_display_point(display_snapshot);
12269 let end = range.end.to_display_point(display_snapshot);
12270 results.push((start..end, color))
12271 }
12272 }
12273 results
12274 }
12275
12276 /// Get the text ranges corresponding to the redaction query
12277 pub fn redacted_ranges(
12278 &self,
12279 search_range: Range<Anchor>,
12280 display_snapshot: &DisplaySnapshot,
12281 cx: &WindowContext,
12282 ) -> Vec<Range<DisplayPoint>> {
12283 display_snapshot
12284 .buffer_snapshot
12285 .redacted_ranges(search_range, |file| {
12286 if let Some(file) = file {
12287 file.is_private()
12288 && EditorSettings::get(
12289 Some(SettingsLocation {
12290 worktree_id: file.worktree_id(cx),
12291 path: file.path().as_ref(),
12292 }),
12293 cx,
12294 )
12295 .redact_private_values
12296 } else {
12297 false
12298 }
12299 })
12300 .map(|range| {
12301 range.start.to_display_point(display_snapshot)
12302 ..range.end.to_display_point(display_snapshot)
12303 })
12304 .collect()
12305 }
12306
12307 pub fn highlight_text<T: 'static>(
12308 &mut self,
12309 ranges: Vec<Range<Anchor>>,
12310 style: HighlightStyle,
12311 cx: &mut ViewContext<Self>,
12312 ) {
12313 self.display_map.update(cx, |map, _| {
12314 map.highlight_text(TypeId::of::<T>(), ranges, style)
12315 });
12316 cx.notify();
12317 }
12318
12319 pub(crate) fn highlight_inlays<T: 'static>(
12320 &mut self,
12321 highlights: Vec<InlayHighlight>,
12322 style: HighlightStyle,
12323 cx: &mut ViewContext<Self>,
12324 ) {
12325 self.display_map.update(cx, |map, _| {
12326 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12327 });
12328 cx.notify();
12329 }
12330
12331 pub fn text_highlights<'a, T: 'static>(
12332 &'a self,
12333 cx: &'a AppContext,
12334 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12335 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12336 }
12337
12338 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12339 let cleared = self
12340 .display_map
12341 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12342 if cleared {
12343 cx.notify();
12344 }
12345 }
12346
12347 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12348 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12349 && self.focus_handle.is_focused(cx)
12350 }
12351
12352 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12353 self.show_cursor_when_unfocused = is_enabled;
12354 cx.notify();
12355 }
12356
12357 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12358 self.project
12359 .as_ref()
12360 .map(|project| project.read(cx).lsp_store())
12361 }
12362
12363 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12364 cx.notify();
12365 }
12366
12367 fn on_buffer_event(
12368 &mut self,
12369 multibuffer: Model<MultiBuffer>,
12370 event: &multi_buffer::Event,
12371 cx: &mut ViewContext<Self>,
12372 ) {
12373 match event {
12374 multi_buffer::Event::Edited {
12375 singleton_buffer_edited,
12376 edited_buffer: buffer_edited,
12377 } => {
12378 self.scrollbar_marker_state.dirty = true;
12379 self.active_indent_guides_state.dirty = true;
12380 self.refresh_active_diagnostics(cx);
12381 self.refresh_code_actions(cx);
12382 if self.has_active_inline_completion() {
12383 self.update_visible_inline_completion(cx);
12384 }
12385 if let Some(buffer) = buffer_edited {
12386 let buffer_id = buffer.read(cx).remote_id();
12387 if !self.registered_buffers.contains_key(&buffer_id) {
12388 if let Some(lsp_store) = self.lsp_store(cx) {
12389 lsp_store.update(cx, |lsp_store, cx| {
12390 self.registered_buffers.insert(
12391 buffer_id,
12392 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12393 );
12394 })
12395 }
12396 }
12397 }
12398 cx.emit(EditorEvent::BufferEdited);
12399 cx.emit(SearchEvent::MatchesInvalidated);
12400 if *singleton_buffer_edited {
12401 if let Some(project) = &self.project {
12402 let project = project.read(cx);
12403 #[allow(clippy::mutable_key_type)]
12404 let languages_affected = multibuffer
12405 .read(cx)
12406 .all_buffers()
12407 .into_iter()
12408 .filter_map(|buffer| {
12409 let buffer = buffer.read(cx);
12410 let language = buffer.language()?;
12411 if project.is_local()
12412 && project
12413 .language_servers_for_local_buffer(buffer, cx)
12414 .count()
12415 == 0
12416 {
12417 None
12418 } else {
12419 Some(language)
12420 }
12421 })
12422 .cloned()
12423 .collect::<HashSet<_>>();
12424 if !languages_affected.is_empty() {
12425 self.refresh_inlay_hints(
12426 InlayHintRefreshReason::BufferEdited(languages_affected),
12427 cx,
12428 );
12429 }
12430 }
12431 }
12432
12433 let Some(project) = &self.project else { return };
12434 let (telemetry, is_via_ssh) = {
12435 let project = project.read(cx);
12436 let telemetry = project.client().telemetry().clone();
12437 let is_via_ssh = project.is_via_ssh();
12438 (telemetry, is_via_ssh)
12439 };
12440 refresh_linked_ranges(self, cx);
12441 telemetry.log_edit_event("editor", is_via_ssh);
12442 }
12443 multi_buffer::Event::ExcerptsAdded {
12444 buffer,
12445 predecessor,
12446 excerpts,
12447 } => {
12448 self.tasks_update_task = Some(self.refresh_runnables(cx));
12449 let buffer_id = buffer.read(cx).remote_id();
12450 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12451 if let Some(project) = &self.project {
12452 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12453 }
12454 }
12455 cx.emit(EditorEvent::ExcerptsAdded {
12456 buffer: buffer.clone(),
12457 predecessor: *predecessor,
12458 excerpts: excerpts.clone(),
12459 });
12460 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12461 }
12462 multi_buffer::Event::ExcerptsRemoved { ids } => {
12463 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12464 let buffer = self.buffer.read(cx);
12465 self.registered_buffers
12466 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12467 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12468 }
12469 multi_buffer::Event::ExcerptsEdited { ids } => {
12470 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12471 }
12472 multi_buffer::Event::ExcerptsExpanded { ids } => {
12473 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12474 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12475 }
12476 multi_buffer::Event::Reparsed(buffer_id) => {
12477 self.tasks_update_task = Some(self.refresh_runnables(cx));
12478
12479 cx.emit(EditorEvent::Reparsed(*buffer_id));
12480 }
12481 multi_buffer::Event::LanguageChanged(buffer_id) => {
12482 linked_editing_ranges::refresh_linked_ranges(self, cx);
12483 cx.emit(EditorEvent::Reparsed(*buffer_id));
12484 cx.notify();
12485 }
12486 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12487 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12488 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12489 cx.emit(EditorEvent::TitleChanged)
12490 }
12491 // multi_buffer::Event::DiffBaseChanged => {
12492 // self.scrollbar_marker_state.dirty = true;
12493 // cx.emit(EditorEvent::DiffBaseChanged);
12494 // cx.notify();
12495 // }
12496 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12497 multi_buffer::Event::DiagnosticsUpdated => {
12498 self.refresh_active_diagnostics(cx);
12499 self.scrollbar_marker_state.dirty = true;
12500 cx.notify();
12501 }
12502 _ => {}
12503 };
12504 }
12505
12506 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12507 cx.notify();
12508 }
12509
12510 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12511 self.tasks_update_task = Some(self.refresh_runnables(cx));
12512 self.refresh_inline_completion(true, false, cx);
12513 self.refresh_inlay_hints(
12514 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12515 self.selections.newest_anchor().head(),
12516 &self.buffer.read(cx).snapshot(cx),
12517 cx,
12518 )),
12519 cx,
12520 );
12521
12522 let old_cursor_shape = self.cursor_shape;
12523
12524 {
12525 let editor_settings = EditorSettings::get_global(cx);
12526 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12527 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12528 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12529 }
12530
12531 if old_cursor_shape != self.cursor_shape {
12532 cx.emit(EditorEvent::CursorShapeChanged);
12533 }
12534
12535 let project_settings = ProjectSettings::get_global(cx);
12536 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12537
12538 if self.mode == EditorMode::Full {
12539 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12540 if self.git_blame_inline_enabled != inline_blame_enabled {
12541 self.toggle_git_blame_inline_internal(false, cx);
12542 }
12543 }
12544
12545 cx.notify();
12546 }
12547
12548 pub fn set_searchable(&mut self, searchable: bool) {
12549 self.searchable = searchable;
12550 }
12551
12552 pub fn searchable(&self) -> bool {
12553 self.searchable
12554 }
12555
12556 fn open_proposed_changes_editor(
12557 &mut self,
12558 _: &OpenProposedChangesEditor,
12559 cx: &mut ViewContext<Self>,
12560 ) {
12561 let Some(workspace) = self.workspace() else {
12562 cx.propagate();
12563 return;
12564 };
12565
12566 let selections = self.selections.all::<usize>(cx);
12567 let multi_buffer = self.buffer.read(cx);
12568 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
12569 let mut new_selections_by_buffer = HashMap::default();
12570 for selection in selections {
12571 for (excerpt, range) in
12572 multi_buffer_snapshot.range_to_buffer_ranges(selection.start..selection.end)
12573 {
12574 let mut range = range.to_point(excerpt.buffer());
12575 range.start.column = 0;
12576 range.end.column = excerpt.buffer().line_len(range.end.row);
12577 new_selections_by_buffer
12578 .entry(multi_buffer.buffer(excerpt.buffer_id()).unwrap())
12579 .or_insert(Vec::new())
12580 .push(range)
12581 }
12582 }
12583
12584 let proposed_changes_buffers = new_selections_by_buffer
12585 .into_iter()
12586 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12587 .collect::<Vec<_>>();
12588 let proposed_changes_editor = cx.new_view(|cx| {
12589 ProposedChangesEditor::new(
12590 "Proposed changes",
12591 proposed_changes_buffers,
12592 self.project.clone(),
12593 cx,
12594 )
12595 });
12596
12597 cx.window_context().defer(move |cx| {
12598 workspace.update(cx, |workspace, cx| {
12599 workspace.active_pane().update(cx, |pane, cx| {
12600 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12601 });
12602 });
12603 });
12604 }
12605
12606 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12607 self.open_excerpts_common(None, true, cx)
12608 }
12609
12610 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12611 self.open_excerpts_common(None, false, cx)
12612 }
12613
12614 fn open_excerpts_common(
12615 &mut self,
12616 jump_data: Option<JumpData>,
12617 split: bool,
12618 cx: &mut ViewContext<Self>,
12619 ) {
12620 let Some(workspace) = self.workspace() else {
12621 cx.propagate();
12622 return;
12623 };
12624
12625 if self.buffer.read(cx).is_singleton() {
12626 cx.propagate();
12627 return;
12628 }
12629
12630 let mut new_selections_by_buffer = HashMap::default();
12631 match &jump_data {
12632 Some(JumpData::MultiBufferPoint {
12633 excerpt_id,
12634 position,
12635 anchor,
12636 line_offset_from_top,
12637 }) => {
12638 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12639 if let Some(buffer) = multi_buffer_snapshot
12640 .buffer_id_for_excerpt(*excerpt_id)
12641 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12642 {
12643 let buffer_snapshot = buffer.read(cx).snapshot();
12644 let jump_to_point = if buffer_snapshot.can_resolve(anchor) {
12645 language::ToPoint::to_point(anchor, &buffer_snapshot)
12646 } else {
12647 buffer_snapshot.clip_point(*position, Bias::Left)
12648 };
12649 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12650 new_selections_by_buffer.insert(
12651 buffer,
12652 (
12653 vec![jump_to_offset..jump_to_offset],
12654 Some(*line_offset_from_top),
12655 ),
12656 );
12657 }
12658 }
12659 Some(JumpData::MultiBufferRow {
12660 row,
12661 line_offset_from_top,
12662 }) => {
12663 let point = MultiBufferPoint::new(row.0, 0);
12664 if let Some((buffer, buffer_point, _)) =
12665 self.buffer.read(cx).point_to_buffer_point(point, cx)
12666 {
12667 let buffer_offset = buffer.read(cx).point_to_offset(buffer_point);
12668 new_selections_by_buffer
12669 .entry(buffer)
12670 .or_insert((Vec::new(), Some(*line_offset_from_top)))
12671 .0
12672 .push(buffer_offset..buffer_offset)
12673 }
12674 }
12675 None => {
12676 let selections = self.selections.all::<usize>(cx);
12677 let multi_buffer = self.buffer.read(cx);
12678 for selection in selections {
12679 for (excerpt, mut range) in multi_buffer
12680 .snapshot(cx)
12681 .range_to_buffer_ranges(selection.range())
12682 {
12683 // When editing branch buffers, jump to the corresponding location
12684 // in their base buffer.
12685 let mut buffer_handle = multi_buffer.buffer(excerpt.buffer_id()).unwrap();
12686 let buffer = buffer_handle.read(cx);
12687 if let Some(base_buffer) = buffer.base_buffer() {
12688 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12689 buffer_handle = base_buffer;
12690 }
12691
12692 if selection.reversed {
12693 mem::swap(&mut range.start, &mut range.end);
12694 }
12695 new_selections_by_buffer
12696 .entry(buffer_handle)
12697 .or_insert((Vec::new(), None))
12698 .0
12699 .push(range)
12700 }
12701 }
12702 }
12703 }
12704
12705 if new_selections_by_buffer.is_empty() {
12706 return;
12707 }
12708
12709 // We defer the pane interaction because we ourselves are a workspace item
12710 // and activating a new item causes the pane to call a method on us reentrantly,
12711 // which panics if we're on the stack.
12712 cx.window_context().defer(move |cx| {
12713 workspace.update(cx, |workspace, cx| {
12714 let pane = if split {
12715 workspace.adjacent_pane(cx)
12716 } else {
12717 workspace.active_pane().clone()
12718 };
12719
12720 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12721 let editor = buffer
12722 .read(cx)
12723 .file()
12724 .is_none()
12725 .then(|| {
12726 // Handle file-less buffers separately: those are not really the project items, so won't have a project path or entity id,
12727 // so `workspace.open_project_item` will never find them, always opening a new editor.
12728 // Instead, we try to activate the existing editor in the pane first.
12729 let (editor, pane_item_index) =
12730 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12731 let editor = item.downcast::<Editor>()?;
12732 let singleton_buffer =
12733 editor.read(cx).buffer().read(cx).as_singleton()?;
12734 if singleton_buffer == buffer {
12735 Some((editor, i))
12736 } else {
12737 None
12738 }
12739 })?;
12740 pane.update(cx, |pane, cx| {
12741 pane.activate_item(pane_item_index, true, true, cx)
12742 });
12743 Some(editor)
12744 })
12745 .flatten()
12746 .unwrap_or_else(|| {
12747 workspace.open_project_item::<Self>(
12748 pane.clone(),
12749 buffer,
12750 true,
12751 true,
12752 cx,
12753 )
12754 });
12755
12756 editor.update(cx, |editor, cx| {
12757 let autoscroll = match scroll_offset {
12758 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12759 None => Autoscroll::newest(),
12760 };
12761 let nav_history = editor.nav_history.take();
12762 editor.change_selections(Some(autoscroll), cx, |s| {
12763 s.select_ranges(ranges);
12764 });
12765 editor.nav_history = nav_history;
12766 });
12767 }
12768 })
12769 });
12770 }
12771
12772 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12773 let snapshot = self.buffer.read(cx).read(cx);
12774 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12775 Some(
12776 ranges
12777 .iter()
12778 .map(move |range| {
12779 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12780 })
12781 .collect(),
12782 )
12783 }
12784
12785 fn selection_replacement_ranges(
12786 &self,
12787 range: Range<OffsetUtf16>,
12788 cx: &mut AppContext,
12789 ) -> Vec<Range<OffsetUtf16>> {
12790 let selections = self.selections.all::<OffsetUtf16>(cx);
12791 let newest_selection = selections
12792 .iter()
12793 .max_by_key(|selection| selection.id)
12794 .unwrap();
12795 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12796 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12797 let snapshot = self.buffer.read(cx).read(cx);
12798 selections
12799 .into_iter()
12800 .map(|mut selection| {
12801 selection.start.0 =
12802 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12803 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12804 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12805 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12806 })
12807 .collect()
12808 }
12809
12810 fn report_editor_event(
12811 &self,
12812 event_type: &'static str,
12813 file_extension: Option<String>,
12814 cx: &AppContext,
12815 ) {
12816 if cfg!(any(test, feature = "test-support")) {
12817 return;
12818 }
12819
12820 let Some(project) = &self.project else { return };
12821
12822 // If None, we are in a file without an extension
12823 let file = self
12824 .buffer
12825 .read(cx)
12826 .as_singleton()
12827 .and_then(|b| b.read(cx).file());
12828 let file_extension = file_extension.or(file
12829 .as_ref()
12830 .and_then(|file| Path::new(file.file_name(cx)).extension())
12831 .and_then(|e| e.to_str())
12832 .map(|a| a.to_string()));
12833
12834 let vim_mode = cx
12835 .global::<SettingsStore>()
12836 .raw_user_settings()
12837 .get("vim_mode")
12838 == Some(&serde_json::Value::Bool(true));
12839
12840 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12841 == language::language_settings::InlineCompletionProvider::Copilot;
12842 let copilot_enabled_for_language = self
12843 .buffer
12844 .read(cx)
12845 .settings_at(0, cx)
12846 .show_inline_completions;
12847
12848 let project = project.read(cx);
12849 telemetry::event!(
12850 event_type,
12851 file_extension,
12852 vim_mode,
12853 copilot_enabled,
12854 copilot_enabled_for_language,
12855 is_via_ssh = project.is_via_ssh(),
12856 );
12857 }
12858
12859 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12860 /// with each line being an array of {text, highlight} objects.
12861 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12862 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12863 return;
12864 };
12865
12866 #[derive(Serialize)]
12867 struct Chunk<'a> {
12868 text: String,
12869 highlight: Option<&'a str>,
12870 }
12871
12872 let snapshot = buffer.read(cx).snapshot();
12873 let range = self
12874 .selected_text_range(false, cx)
12875 .and_then(|selection| {
12876 if selection.range.is_empty() {
12877 None
12878 } else {
12879 Some(selection.range)
12880 }
12881 })
12882 .unwrap_or_else(|| 0..snapshot.len());
12883
12884 let chunks = snapshot.chunks(range, true);
12885 let mut lines = Vec::new();
12886 let mut line: VecDeque<Chunk> = VecDeque::new();
12887
12888 let Some(style) = self.style.as_ref() else {
12889 return;
12890 };
12891
12892 for chunk in chunks {
12893 let highlight = chunk
12894 .syntax_highlight_id
12895 .and_then(|id| id.name(&style.syntax));
12896 let mut chunk_lines = chunk.text.split('\n').peekable();
12897 while let Some(text) = chunk_lines.next() {
12898 let mut merged_with_last_token = false;
12899 if let Some(last_token) = line.back_mut() {
12900 if last_token.highlight == highlight {
12901 last_token.text.push_str(text);
12902 merged_with_last_token = true;
12903 }
12904 }
12905
12906 if !merged_with_last_token {
12907 line.push_back(Chunk {
12908 text: text.into(),
12909 highlight,
12910 });
12911 }
12912
12913 if chunk_lines.peek().is_some() {
12914 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12915 line.pop_front();
12916 }
12917 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12918 line.pop_back();
12919 }
12920
12921 lines.push(mem::take(&mut line));
12922 }
12923 }
12924 }
12925
12926 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12927 return;
12928 };
12929 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12930 }
12931
12932 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12933 self.request_autoscroll(Autoscroll::newest(), cx);
12934 let position = self.selections.newest_display(cx).start;
12935 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12936 }
12937
12938 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12939 &self.inlay_hint_cache
12940 }
12941
12942 pub fn replay_insert_event(
12943 &mut self,
12944 text: &str,
12945 relative_utf16_range: Option<Range<isize>>,
12946 cx: &mut ViewContext<Self>,
12947 ) {
12948 if !self.input_enabled {
12949 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12950 return;
12951 }
12952 if let Some(relative_utf16_range) = relative_utf16_range {
12953 let selections = self.selections.all::<OffsetUtf16>(cx);
12954 self.change_selections(None, cx, |s| {
12955 let new_ranges = selections.into_iter().map(|range| {
12956 let start = OffsetUtf16(
12957 range
12958 .head()
12959 .0
12960 .saturating_add_signed(relative_utf16_range.start),
12961 );
12962 let end = OffsetUtf16(
12963 range
12964 .head()
12965 .0
12966 .saturating_add_signed(relative_utf16_range.end),
12967 );
12968 start..end
12969 });
12970 s.select_ranges(new_ranges);
12971 });
12972 }
12973
12974 self.handle_input(text, cx);
12975 }
12976
12977 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12978 let Some(provider) = self.semantics_provider.as_ref() else {
12979 return false;
12980 };
12981
12982 let mut supports = false;
12983 self.buffer().read(cx).for_each_buffer(|buffer| {
12984 supports |= provider.supports_inlay_hints(buffer, cx);
12985 });
12986 supports
12987 }
12988
12989 pub fn focus(&self, cx: &mut WindowContext) {
12990 cx.focus(&self.focus_handle)
12991 }
12992
12993 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12994 self.focus_handle.is_focused(cx)
12995 }
12996
12997 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12998 cx.emit(EditorEvent::Focused);
12999
13000 if let Some(descendant) = self
13001 .last_focused_descendant
13002 .take()
13003 .and_then(|descendant| descendant.upgrade())
13004 {
13005 cx.focus(&descendant);
13006 } else {
13007 if let Some(blame) = self.blame.as_ref() {
13008 blame.update(cx, GitBlame::focus)
13009 }
13010
13011 self.blink_manager.update(cx, BlinkManager::enable);
13012 self.show_cursor_names(cx);
13013 self.buffer.update(cx, |buffer, cx| {
13014 buffer.finalize_last_transaction(cx);
13015 if self.leader_peer_id.is_none() {
13016 buffer.set_active_selections(
13017 &self.selections.disjoint_anchors(),
13018 self.selections.line_mode,
13019 self.cursor_shape,
13020 cx,
13021 );
13022 }
13023 });
13024 }
13025 }
13026
13027 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
13028 cx.emit(EditorEvent::FocusedIn)
13029 }
13030
13031 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
13032 if event.blurred != self.focus_handle {
13033 self.last_focused_descendant = Some(event.blurred);
13034 }
13035 }
13036
13037 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
13038 self.blink_manager.update(cx, BlinkManager::disable);
13039 self.buffer
13040 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
13041
13042 if let Some(blame) = self.blame.as_ref() {
13043 blame.update(cx, GitBlame::blur)
13044 }
13045 if !self.hover_state.focused(cx) {
13046 hide_hover(self, cx);
13047 }
13048
13049 self.hide_context_menu(cx);
13050 cx.emit(EditorEvent::Blurred);
13051 cx.notify();
13052 }
13053
13054 pub fn register_action<A: Action>(
13055 &mut self,
13056 listener: impl Fn(&A, &mut WindowContext) + 'static,
13057 ) -> Subscription {
13058 let id = self.next_editor_action_id.post_inc();
13059 let listener = Arc::new(listener);
13060 self.editor_actions.borrow_mut().insert(
13061 id,
13062 Box::new(move |cx| {
13063 let cx = cx.window_context();
13064 let listener = listener.clone();
13065 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
13066 let action = action.downcast_ref().unwrap();
13067 if phase == DispatchPhase::Bubble {
13068 listener(action, cx)
13069 }
13070 })
13071 }),
13072 );
13073
13074 let editor_actions = self.editor_actions.clone();
13075 Subscription::new(move || {
13076 editor_actions.borrow_mut().remove(&id);
13077 })
13078 }
13079
13080 pub fn file_header_size(&self) -> u32 {
13081 FILE_HEADER_HEIGHT
13082 }
13083
13084 pub fn revert(
13085 &mut self,
13086 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13087 cx: &mut ViewContext<Self>,
13088 ) {
13089 self.buffer().update(cx, |multi_buffer, cx| {
13090 for (buffer_id, changes) in revert_changes {
13091 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13092 buffer.update(cx, |buffer, cx| {
13093 buffer.edit(
13094 changes.into_iter().map(|(range, text)| {
13095 (range, text.to_string().map(Arc::<str>::from))
13096 }),
13097 None,
13098 cx,
13099 );
13100 });
13101 }
13102 }
13103 });
13104 self.change_selections(None, cx, |selections| selections.refresh());
13105 }
13106
13107 pub fn to_pixel_point(
13108 &mut self,
13109 source: multi_buffer::Anchor,
13110 editor_snapshot: &EditorSnapshot,
13111 cx: &mut ViewContext<Self>,
13112 ) -> Option<gpui::Point<Pixels>> {
13113 let source_point = source.to_display_point(editor_snapshot);
13114 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13115 }
13116
13117 pub fn display_to_pixel_point(
13118 &self,
13119 source: DisplayPoint,
13120 editor_snapshot: &EditorSnapshot,
13121 cx: &WindowContext,
13122 ) -> Option<gpui::Point<Pixels>> {
13123 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13124 let text_layout_details = self.text_layout_details(cx);
13125 let scroll_top = text_layout_details
13126 .scroll_anchor
13127 .scroll_position(editor_snapshot)
13128 .y;
13129
13130 if source.row().as_f32() < scroll_top.floor() {
13131 return None;
13132 }
13133 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13134 let source_y = line_height * (source.row().as_f32() - scroll_top);
13135 Some(gpui::Point::new(source_x, source_y))
13136 }
13137
13138 pub fn has_active_completions_menu(&self) -> bool {
13139 self.context_menu.borrow().as_ref().map_or(false, |menu| {
13140 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
13141 })
13142 }
13143
13144 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13145 self.addons
13146 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13147 }
13148
13149 pub fn unregister_addon<T: Addon>(&mut self) {
13150 self.addons.remove(&std::any::TypeId::of::<T>());
13151 }
13152
13153 pub fn addon<T: Addon>(&self) -> Option<&T> {
13154 let type_id = std::any::TypeId::of::<T>();
13155 self.addons
13156 .get(&type_id)
13157 .and_then(|item| item.to_any().downcast_ref::<T>())
13158 }
13159
13160 pub fn add_change_set(
13161 &mut self,
13162 change_set: Model<BufferChangeSet>,
13163 cx: &mut ViewContext<Self>,
13164 ) {
13165 self.diff_map.add_change_set(change_set, cx);
13166 }
13167
13168 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
13169 let text_layout_details = self.text_layout_details(cx);
13170 let style = &text_layout_details.editor_style;
13171 let font_id = cx.text_system().resolve_font(&style.text.font());
13172 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13173 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13174
13175 let em_width = cx
13176 .text_system()
13177 .typographic_bounds(font_id, font_size, 'm')
13178 .unwrap()
13179 .size
13180 .width;
13181
13182 gpui::Point::new(em_width, line_height)
13183 }
13184}
13185
13186fn get_unstaged_changes_for_buffers(
13187 project: &Model<Project>,
13188 buffers: impl IntoIterator<Item = Model<Buffer>>,
13189 cx: &mut ViewContext<Editor>,
13190) {
13191 let mut tasks = Vec::new();
13192 project.update(cx, |project, cx| {
13193 for buffer in buffers {
13194 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
13195 }
13196 });
13197 cx.spawn(|this, mut cx| async move {
13198 let change_sets = futures::future::join_all(tasks).await;
13199 this.update(&mut cx, |this, cx| {
13200 for change_set in change_sets {
13201 if let Some(change_set) = change_set.log_err() {
13202 this.diff_map.add_change_set(change_set, cx);
13203 }
13204 }
13205 })
13206 .ok();
13207 })
13208 .detach();
13209}
13210
13211fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13212 let tab_size = tab_size.get() as usize;
13213 let mut width = offset;
13214
13215 for ch in text.chars() {
13216 width += if ch == '\t' {
13217 tab_size - (width % tab_size)
13218 } else {
13219 1
13220 };
13221 }
13222
13223 width - offset
13224}
13225
13226#[cfg(test)]
13227mod tests {
13228 use super::*;
13229
13230 #[test]
13231 fn test_string_size_with_expanded_tabs() {
13232 let nz = |val| NonZeroU32::new(val).unwrap();
13233 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13234 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13235 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13236 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13237 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13238 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13239 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13240 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13241 }
13242}
13243
13244/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13245struct WordBreakingTokenizer<'a> {
13246 input: &'a str,
13247}
13248
13249impl<'a> WordBreakingTokenizer<'a> {
13250 fn new(input: &'a str) -> Self {
13251 Self { input }
13252 }
13253}
13254
13255fn is_char_ideographic(ch: char) -> bool {
13256 use unicode_script::Script::*;
13257 use unicode_script::UnicodeScript;
13258 matches!(ch.script(), Han | Tangut | Yi)
13259}
13260
13261fn is_grapheme_ideographic(text: &str) -> bool {
13262 text.chars().any(is_char_ideographic)
13263}
13264
13265fn is_grapheme_whitespace(text: &str) -> bool {
13266 text.chars().any(|x| x.is_whitespace())
13267}
13268
13269fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13270 text.chars().next().map_or(false, |ch| {
13271 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13272 })
13273}
13274
13275#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13276struct WordBreakToken<'a> {
13277 token: &'a str,
13278 grapheme_len: usize,
13279 is_whitespace: bool,
13280}
13281
13282impl<'a> Iterator for WordBreakingTokenizer<'a> {
13283 /// Yields a span, the count of graphemes in the token, and whether it was
13284 /// whitespace. Note that it also breaks at word boundaries.
13285 type Item = WordBreakToken<'a>;
13286
13287 fn next(&mut self) -> Option<Self::Item> {
13288 use unicode_segmentation::UnicodeSegmentation;
13289 if self.input.is_empty() {
13290 return None;
13291 }
13292
13293 let mut iter = self.input.graphemes(true).peekable();
13294 let mut offset = 0;
13295 let mut graphemes = 0;
13296 if let Some(first_grapheme) = iter.next() {
13297 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13298 offset += first_grapheme.len();
13299 graphemes += 1;
13300 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13301 if let Some(grapheme) = iter.peek().copied() {
13302 if should_stay_with_preceding_ideograph(grapheme) {
13303 offset += grapheme.len();
13304 graphemes += 1;
13305 }
13306 }
13307 } else {
13308 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13309 let mut next_word_bound = words.peek().copied();
13310 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13311 next_word_bound = words.next();
13312 }
13313 while let Some(grapheme) = iter.peek().copied() {
13314 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13315 break;
13316 };
13317 if is_grapheme_whitespace(grapheme) != is_whitespace {
13318 break;
13319 };
13320 offset += grapheme.len();
13321 graphemes += 1;
13322 iter.next();
13323 }
13324 }
13325 let token = &self.input[..offset];
13326 self.input = &self.input[offset..];
13327 if is_whitespace {
13328 Some(WordBreakToken {
13329 token: " ",
13330 grapheme_len: 1,
13331 is_whitespace: true,
13332 })
13333 } else {
13334 Some(WordBreakToken {
13335 token,
13336 grapheme_len: graphemes,
13337 is_whitespace: false,
13338 })
13339 }
13340 } else {
13341 None
13342 }
13343 }
13344}
13345
13346#[test]
13347fn test_word_breaking_tokenizer() {
13348 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13349 ("", &[]),
13350 (" ", &[(" ", 1, true)]),
13351 ("Ʒ", &[("Ʒ", 1, false)]),
13352 ("Ǽ", &[("Ǽ", 1, false)]),
13353 ("⋑", &[("⋑", 1, false)]),
13354 ("⋑⋑", &[("⋑⋑", 2, false)]),
13355 (
13356 "原理，进而",
13357 &[
13358 ("原", 1, false),
13359 ("理，", 2, false),
13360 ("进", 1, false),
13361 ("而", 1, false),
13362 ],
13363 ),
13364 (
13365 "hello world",
13366 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13367 ),
13368 (
13369 "hello, world",
13370 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13371 ),
13372 (
13373 " hello world",
13374 &[
13375 (" ", 1, true),
13376 ("hello", 5, false),
13377 (" ", 1, true),
13378 ("world", 5, false),
13379 ],
13380 ),
13381 (
13382 "这是什么 \n 钢笔",
13383 &[
13384 ("这", 1, false),
13385 ("是", 1, false),
13386 ("什", 1, false),
13387 ("么", 1, false),
13388 (" ", 1, true),
13389 ("钢", 1, false),
13390 ("笔", 1, false),
13391 ],
13392 ),
13393 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13394 ];
13395
13396 for (input, result) in tests {
13397 assert_eq!(
13398 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13399 result
13400 .iter()
13401 .copied()
13402 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13403 token,
13404 grapheme_len,
13405 is_whitespace,
13406 })
13407 .collect::<Vec<_>>()
13408 );
13409 }
13410}
13411
13412fn wrap_with_prefix(
13413 line_prefix: String,
13414 unwrapped_text: String,
13415 wrap_column: usize,
13416 tab_size: NonZeroU32,
13417) -> String {
13418 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13419 let mut wrapped_text = String::new();
13420 let mut current_line = line_prefix.clone();
13421
13422 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13423 let mut current_line_len = line_prefix_len;
13424 for WordBreakToken {
13425 token,
13426 grapheme_len,
13427 is_whitespace,
13428 } in tokenizer
13429 {
13430 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13431 wrapped_text.push_str(current_line.trim_end());
13432 wrapped_text.push('\n');
13433 current_line.truncate(line_prefix.len());
13434 current_line_len = line_prefix_len;
13435 if !is_whitespace {
13436 current_line.push_str(token);
13437 current_line_len += grapheme_len;
13438 }
13439 } else if !is_whitespace {
13440 current_line.push_str(token);
13441 current_line_len += grapheme_len;
13442 } else if current_line_len != line_prefix_len {
13443 current_line.push(' ');
13444 current_line_len += 1;
13445 }
13446 }
13447
13448 if !current_line.is_empty() {
13449 wrapped_text.push_str(¤t_line);
13450 }
13451 wrapped_text
13452}
13453
13454#[test]
13455fn test_wrap_with_prefix() {
13456 assert_eq!(
13457 wrap_with_prefix(
13458 "# ".to_string(),
13459 "abcdefg".to_string(),
13460 4,
13461 NonZeroU32::new(4).unwrap()
13462 ),
13463 "# abcdefg"
13464 );
13465 assert_eq!(
13466 wrap_with_prefix(
13467 "".to_string(),
13468 "\thello world".to_string(),
13469 8,
13470 NonZeroU32::new(4).unwrap()
13471 ),
13472 "hello\nworld"
13473 );
13474 assert_eq!(
13475 wrap_with_prefix(
13476 "// ".to_string(),
13477 "xx \nyy zz aa bb cc".to_string(),
13478 12,
13479 NonZeroU32::new(4).unwrap()
13480 ),
13481 "// xx yy zz\n// aa bb cc"
13482 );
13483 assert_eq!(
13484 wrap_with_prefix(
13485 String::new(),
13486 "这是什么 \n 钢笔".to_string(),
13487 3,
13488 NonZeroU32::new(4).unwrap()
13489 ),
13490 "这是什\n么 钢\n笔"
13491 );
13492}
13493
13494fn hunks_for_selections(
13495 snapshot: &EditorSnapshot,
13496 selections: &[Selection<Point>],
13497) -> Vec<MultiBufferDiffHunk> {
13498 hunks_for_ranges(
13499 selections.iter().map(|selection| selection.range()),
13500 snapshot,
13501 )
13502}
13503
13504pub fn hunks_for_ranges(
13505 ranges: impl Iterator<Item = Range<Point>>,
13506 snapshot: &EditorSnapshot,
13507) -> Vec<MultiBufferDiffHunk> {
13508 let mut hunks = Vec::new();
13509 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13510 HashMap::default();
13511 for query_range in ranges {
13512 let query_rows =
13513 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13514 for hunk in snapshot.diff_map.diff_hunks_in_range(
13515 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13516 &snapshot.buffer_snapshot,
13517 ) {
13518 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13519 // when the caret is just above or just below the deleted hunk.
13520 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13521 let related_to_selection = if allow_adjacent {
13522 hunk.row_range.overlaps(&query_rows)
13523 || hunk.row_range.start == query_rows.end
13524 || hunk.row_range.end == query_rows.start
13525 } else {
13526 hunk.row_range.overlaps(&query_rows)
13527 };
13528 if related_to_selection {
13529 if !processed_buffer_rows
13530 .entry(hunk.buffer_id)
13531 .or_default()
13532 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13533 {
13534 continue;
13535 }
13536 hunks.push(hunk);
13537 }
13538 }
13539 }
13540
13541 hunks
13542}
13543
13544pub trait CollaborationHub {
13545 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13546 fn user_participant_indices<'a>(
13547 &self,
13548 cx: &'a AppContext,
13549 ) -> &'a HashMap<u64, ParticipantIndex>;
13550 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13551}
13552
13553impl CollaborationHub for Model<Project> {
13554 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13555 self.read(cx).collaborators()
13556 }
13557
13558 fn user_participant_indices<'a>(
13559 &self,
13560 cx: &'a AppContext,
13561 ) -> &'a HashMap<u64, ParticipantIndex> {
13562 self.read(cx).user_store().read(cx).participant_indices()
13563 }
13564
13565 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13566 let this = self.read(cx);
13567 let user_ids = this.collaborators().values().map(|c| c.user_id);
13568 this.user_store().read_with(cx, |user_store, cx| {
13569 user_store.participant_names(user_ids, cx)
13570 })
13571 }
13572}
13573
13574pub trait SemanticsProvider {
13575 fn hover(
13576 &self,
13577 buffer: &Model<Buffer>,
13578 position: text::Anchor,
13579 cx: &mut AppContext,
13580 ) -> Option<Task<Vec<project::Hover>>>;
13581
13582 fn inlay_hints(
13583 &self,
13584 buffer_handle: Model<Buffer>,
13585 range: Range<text::Anchor>,
13586 cx: &mut AppContext,
13587 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13588
13589 fn resolve_inlay_hint(
13590 &self,
13591 hint: InlayHint,
13592 buffer_handle: Model<Buffer>,
13593 server_id: LanguageServerId,
13594 cx: &mut AppContext,
13595 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13596
13597 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13598
13599 fn document_highlights(
13600 &self,
13601 buffer: &Model<Buffer>,
13602 position: text::Anchor,
13603 cx: &mut AppContext,
13604 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13605
13606 fn definitions(
13607 &self,
13608 buffer: &Model<Buffer>,
13609 position: text::Anchor,
13610 kind: GotoDefinitionKind,
13611 cx: &mut AppContext,
13612 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13613
13614 fn range_for_rename(
13615 &self,
13616 buffer: &Model<Buffer>,
13617 position: text::Anchor,
13618 cx: &mut AppContext,
13619 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13620
13621 fn perform_rename(
13622 &self,
13623 buffer: &Model<Buffer>,
13624 position: text::Anchor,
13625 new_name: String,
13626 cx: &mut AppContext,
13627 ) -> Option<Task<Result<ProjectTransaction>>>;
13628}
13629
13630pub trait CompletionProvider {
13631 fn completions(
13632 &self,
13633 buffer: &Model<Buffer>,
13634 buffer_position: text::Anchor,
13635 trigger: CompletionContext,
13636 cx: &mut ViewContext<Editor>,
13637 ) -> Task<Result<Vec<Completion>>>;
13638
13639 fn resolve_completions(
13640 &self,
13641 buffer: Model<Buffer>,
13642 completion_indices: Vec<usize>,
13643 completions: Rc<RefCell<Box<[Completion]>>>,
13644 cx: &mut ViewContext<Editor>,
13645 ) -> Task<Result<bool>>;
13646
13647 fn apply_additional_edits_for_completion(
13648 &self,
13649 _buffer: Model<Buffer>,
13650 _completions: Rc<RefCell<Box<[Completion]>>>,
13651 _completion_index: usize,
13652 _push_to_history: bool,
13653 _cx: &mut ViewContext<Editor>,
13654 ) -> Task<Result<Option<language::Transaction>>> {
13655 Task::ready(Ok(None))
13656 }
13657
13658 fn is_completion_trigger(
13659 &self,
13660 buffer: &Model<Buffer>,
13661 position: language::Anchor,
13662 text: &str,
13663 trigger_in_words: bool,
13664 cx: &mut ViewContext<Editor>,
13665 ) -> bool;
13666
13667 fn sort_completions(&self) -> bool {
13668 true
13669 }
13670}
13671
13672pub trait CodeActionProvider {
13673 fn id(&self) -> Arc<str>;
13674
13675 fn code_actions(
13676 &self,
13677 buffer: &Model<Buffer>,
13678 range: Range<text::Anchor>,
13679 cx: &mut WindowContext,
13680 ) -> Task<Result<Vec<CodeAction>>>;
13681
13682 fn apply_code_action(
13683 &self,
13684 buffer_handle: Model<Buffer>,
13685 action: CodeAction,
13686 excerpt_id: ExcerptId,
13687 push_to_history: bool,
13688 cx: &mut WindowContext,
13689 ) -> Task<Result<ProjectTransaction>>;
13690}
13691
13692impl CodeActionProvider for Model<Project> {
13693 fn id(&self) -> Arc<str> {
13694 "project".into()
13695 }
13696
13697 fn code_actions(
13698 &self,
13699 buffer: &Model<Buffer>,
13700 range: Range<text::Anchor>,
13701 cx: &mut WindowContext,
13702 ) -> Task<Result<Vec<CodeAction>>> {
13703 self.update(cx, |project, cx| {
13704 project.code_actions(buffer, range, None, cx)
13705 })
13706 }
13707
13708 fn apply_code_action(
13709 &self,
13710 buffer_handle: Model<Buffer>,
13711 action: CodeAction,
13712 _excerpt_id: ExcerptId,
13713 push_to_history: bool,
13714 cx: &mut WindowContext,
13715 ) -> Task<Result<ProjectTransaction>> {
13716 self.update(cx, |project, cx| {
13717 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13718 })
13719 }
13720}
13721
13722fn snippet_completions(
13723 project: &Project,
13724 buffer: &Model<Buffer>,
13725 buffer_position: text::Anchor,
13726 cx: &mut AppContext,
13727) -> Task<Result<Vec<Completion>>> {
13728 let language = buffer.read(cx).language_at(buffer_position);
13729 let language_name = language.as_ref().map(|language| language.lsp_id());
13730 let snippet_store = project.snippets().read(cx);
13731 let snippets = snippet_store.snippets_for(language_name, cx);
13732
13733 if snippets.is_empty() {
13734 return Task::ready(Ok(vec![]));
13735 }
13736 let snapshot = buffer.read(cx).text_snapshot();
13737 let chars: String = snapshot
13738 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13739 .collect();
13740
13741 let scope = language.map(|language| language.default_scope());
13742 let executor = cx.background_executor().clone();
13743
13744 cx.background_executor().spawn(async move {
13745 let classifier = CharClassifier::new(scope).for_completion(true);
13746 let mut last_word = chars
13747 .chars()
13748 .take_while(|c| classifier.is_word(*c))
13749 .collect::<String>();
13750 last_word = last_word.chars().rev().collect();
13751
13752 if last_word.is_empty() {
13753 return Ok(vec![]);
13754 }
13755
13756 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13757 let to_lsp = |point: &text::Anchor| {
13758 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13759 point_to_lsp(end)
13760 };
13761 let lsp_end = to_lsp(&buffer_position);
13762
13763 let candidates = snippets
13764 .iter()
13765 .enumerate()
13766 .flat_map(|(ix, snippet)| {
13767 snippet
13768 .prefix
13769 .iter()
13770 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13771 })
13772 .collect::<Vec<StringMatchCandidate>>();
13773
13774 let mut matches = fuzzy::match_strings(
13775 &candidates,
13776 &last_word,
13777 last_word.chars().any(|c| c.is_uppercase()),
13778 100,
13779 &Default::default(),
13780 executor,
13781 )
13782 .await;
13783
13784 // Remove all candidates where the query's start does not match the start of any word in the candidate
13785 if let Some(query_start) = last_word.chars().next() {
13786 matches.retain(|string_match| {
13787 split_words(&string_match.string).any(|word| {
13788 // Check that the first codepoint of the word as lowercase matches the first
13789 // codepoint of the query as lowercase
13790 word.chars()
13791 .flat_map(|codepoint| codepoint.to_lowercase())
13792 .zip(query_start.to_lowercase())
13793 .all(|(word_cp, query_cp)| word_cp == query_cp)
13794 })
13795 });
13796 }
13797
13798 let matched_strings = matches
13799 .into_iter()
13800 .map(|m| m.string)
13801 .collect::<HashSet<_>>();
13802
13803 let result: Vec<Completion> = snippets
13804 .into_iter()
13805 .filter_map(|snippet| {
13806 let matching_prefix = snippet
13807 .prefix
13808 .iter()
13809 .find(|prefix| matched_strings.contains(*prefix))?;
13810 let start = as_offset - last_word.len();
13811 let start = snapshot.anchor_before(start);
13812 let range = start..buffer_position;
13813 let lsp_start = to_lsp(&start);
13814 let lsp_range = lsp::Range {
13815 start: lsp_start,
13816 end: lsp_end,
13817 };
13818 Some(Completion {
13819 old_range: range,
13820 new_text: snippet.body.clone(),
13821 resolved: false,
13822 label: CodeLabel {
13823 text: matching_prefix.clone(),
13824 runs: vec![],
13825 filter_range: 0..matching_prefix.len(),
13826 },
13827 server_id: LanguageServerId(usize::MAX),
13828 documentation: snippet.description.clone().map(Documentation::SingleLine),
13829 lsp_completion: lsp::CompletionItem {
13830 label: snippet.prefix.first().unwrap().clone(),
13831 kind: Some(CompletionItemKind::SNIPPET),
13832 label_details: snippet.description.as_ref().map(|description| {
13833 lsp::CompletionItemLabelDetails {
13834 detail: Some(description.clone()),
13835 description: None,
13836 }
13837 }),
13838 insert_text_format: Some(InsertTextFormat::SNIPPET),
13839 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13840 lsp::InsertReplaceEdit {
13841 new_text: snippet.body.clone(),
13842 insert: lsp_range,
13843 replace: lsp_range,
13844 },
13845 )),
13846 filter_text: Some(snippet.body.clone()),
13847 sort_text: Some(char::MAX.to_string()),
13848 ..Default::default()
13849 },
13850 confirm: None,
13851 })
13852 })
13853 .collect();
13854
13855 Ok(result)
13856 })
13857}
13858
13859impl CompletionProvider for Model<Project> {
13860 fn completions(
13861 &self,
13862 buffer: &Model<Buffer>,
13863 buffer_position: text::Anchor,
13864 options: CompletionContext,
13865 cx: &mut ViewContext<Editor>,
13866 ) -> Task<Result<Vec<Completion>>> {
13867 self.update(cx, |project, cx| {
13868 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13869 let project_completions = project.completions(buffer, buffer_position, options, cx);
13870 cx.background_executor().spawn(async move {
13871 let mut completions = project_completions.await?;
13872 let snippets_completions = snippets.await?;
13873 completions.extend(snippets_completions);
13874 Ok(completions)
13875 })
13876 })
13877 }
13878
13879 fn resolve_completions(
13880 &self,
13881 buffer: Model<Buffer>,
13882 completion_indices: Vec<usize>,
13883 completions: Rc<RefCell<Box<[Completion]>>>,
13884 cx: &mut ViewContext<Editor>,
13885 ) -> Task<Result<bool>> {
13886 self.update(cx, |project, cx| {
13887 project.lsp_store().update(cx, |lsp_store, cx| {
13888 lsp_store.resolve_completions(buffer, completion_indices, completions, cx)
13889 })
13890 })
13891 }
13892
13893 fn apply_additional_edits_for_completion(
13894 &self,
13895 buffer: Model<Buffer>,
13896 completions: Rc<RefCell<Box<[Completion]>>>,
13897 completion_index: usize,
13898 push_to_history: bool,
13899 cx: &mut ViewContext<Editor>,
13900 ) -> Task<Result<Option<language::Transaction>>> {
13901 self.update(cx, |project, cx| {
13902 project.lsp_store().update(cx, |lsp_store, cx| {
13903 lsp_store.apply_additional_edits_for_completion(
13904 buffer,
13905 completions,
13906 completion_index,
13907 push_to_history,
13908 cx,
13909 )
13910 })
13911 })
13912 }
13913
13914 fn is_completion_trigger(
13915 &self,
13916 buffer: &Model<Buffer>,
13917 position: language::Anchor,
13918 text: &str,
13919 trigger_in_words: bool,
13920 cx: &mut ViewContext<Editor>,
13921 ) -> bool {
13922 let mut chars = text.chars();
13923 let char = if let Some(char) = chars.next() {
13924 char
13925 } else {
13926 return false;
13927 };
13928 if chars.next().is_some() {
13929 return false;
13930 }
13931
13932 let buffer = buffer.read(cx);
13933 let snapshot = buffer.snapshot();
13934 if !snapshot.settings_at(position, cx).show_completions_on_input {
13935 return false;
13936 }
13937 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13938 if trigger_in_words && classifier.is_word(char) {
13939 return true;
13940 }
13941
13942 buffer.completion_triggers().contains(text)
13943 }
13944}
13945
13946impl SemanticsProvider for Model<Project> {
13947 fn hover(
13948 &self,
13949 buffer: &Model<Buffer>,
13950 position: text::Anchor,
13951 cx: &mut AppContext,
13952 ) -> Option<Task<Vec<project::Hover>>> {
13953 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13954 }
13955
13956 fn document_highlights(
13957 &self,
13958 buffer: &Model<Buffer>,
13959 position: text::Anchor,
13960 cx: &mut AppContext,
13961 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13962 Some(self.update(cx, |project, cx| {
13963 project.document_highlights(buffer, position, cx)
13964 }))
13965 }
13966
13967 fn definitions(
13968 &self,
13969 buffer: &Model<Buffer>,
13970 position: text::Anchor,
13971 kind: GotoDefinitionKind,
13972 cx: &mut AppContext,
13973 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13974 Some(self.update(cx, |project, cx| match kind {
13975 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13976 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13977 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13978 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13979 }))
13980 }
13981
13982 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13983 // TODO: make this work for remote projects
13984 self.read(cx)
13985 .language_servers_for_local_buffer(buffer.read(cx), cx)
13986 .any(
13987 |(_, server)| match server.capabilities().inlay_hint_provider {
13988 Some(lsp::OneOf::Left(enabled)) => enabled,
13989 Some(lsp::OneOf::Right(_)) => true,
13990 None => false,
13991 },
13992 )
13993 }
13994
13995 fn inlay_hints(
13996 &self,
13997 buffer_handle: Model<Buffer>,
13998 range: Range<text::Anchor>,
13999 cx: &mut AppContext,
14000 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
14001 Some(self.update(cx, |project, cx| {
14002 project.inlay_hints(buffer_handle, range, cx)
14003 }))
14004 }
14005
14006 fn resolve_inlay_hint(
14007 &self,
14008 hint: InlayHint,
14009 buffer_handle: Model<Buffer>,
14010 server_id: LanguageServerId,
14011 cx: &mut AppContext,
14012 ) -> Option<Task<anyhow::Result<InlayHint>>> {
14013 Some(self.update(cx, |project, cx| {
14014 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
14015 }))
14016 }
14017
14018 fn range_for_rename(
14019 &self,
14020 buffer: &Model<Buffer>,
14021 position: text::Anchor,
14022 cx: &mut AppContext,
14023 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
14024 Some(self.update(cx, |project, cx| {
14025 let buffer = buffer.clone();
14026 let task = project.prepare_rename(buffer.clone(), position, cx);
14027 cx.spawn(|_, mut cx| async move {
14028 Ok(match task.await? {
14029 PrepareRenameResponse::Success(range) => Some(range),
14030 PrepareRenameResponse::InvalidPosition => None,
14031 PrepareRenameResponse::OnlyUnpreparedRenameSupported => {
14032 // Fallback on using TreeSitter info to determine identifier range
14033 buffer.update(&mut cx, |buffer, _| {
14034 let snapshot = buffer.snapshot();
14035 let (range, kind) = snapshot.surrounding_word(position);
14036 if kind != Some(CharKind::Word) {
14037 return None;
14038 }
14039 Some(
14040 snapshot.anchor_before(range.start)
14041 ..snapshot.anchor_after(range.end),
14042 )
14043 })?
14044 }
14045 })
14046 })
14047 }))
14048 }
14049
14050 fn perform_rename(
14051 &self,
14052 buffer: &Model<Buffer>,
14053 position: text::Anchor,
14054 new_name: String,
14055 cx: &mut AppContext,
14056 ) -> Option<Task<Result<ProjectTransaction>>> {
14057 Some(self.update(cx, |project, cx| {
14058 project.perform_rename(buffer.clone(), position, new_name, cx)
14059 }))
14060 }
14061}
14062
14063fn inlay_hint_settings(
14064 location: Anchor,
14065 snapshot: &MultiBufferSnapshot,
14066 cx: &mut ViewContext<Editor>,
14067) -> InlayHintSettings {
14068 let file = snapshot.file_at(location);
14069 let language = snapshot.language_at(location).map(|l| l.name());
14070 language_settings(language, file, cx).inlay_hints
14071}
14072
14073fn consume_contiguous_rows(
14074 contiguous_row_selections: &mut Vec<Selection<Point>>,
14075 selection: &Selection<Point>,
14076 display_map: &DisplaySnapshot,
14077 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
14078) -> (MultiBufferRow, MultiBufferRow) {
14079 contiguous_row_selections.push(selection.clone());
14080 let start_row = MultiBufferRow(selection.start.row);
14081 let mut end_row = ending_row(selection, display_map);
14082
14083 while let Some(next_selection) = selections.peek() {
14084 if next_selection.start.row <= end_row.0 {
14085 end_row = ending_row(next_selection, display_map);
14086 contiguous_row_selections.push(selections.next().unwrap().clone());
14087 } else {
14088 break;
14089 }
14090 }
14091 (start_row, end_row)
14092}
14093
14094fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
14095 if next_selection.end.column > 0 || next_selection.is_empty() {
14096 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
14097 } else {
14098 MultiBufferRow(next_selection.end.row)
14099 }
14100}
14101
14102impl EditorSnapshot {
14103 pub fn remote_selections_in_range<'a>(
14104 &'a self,
14105 range: &'a Range<Anchor>,
14106 collaboration_hub: &dyn CollaborationHub,
14107 cx: &'a AppContext,
14108 ) -> impl 'a + Iterator<Item = RemoteSelection> {
14109 let participant_names = collaboration_hub.user_names(cx);
14110 let participant_indices = collaboration_hub.user_participant_indices(cx);
14111 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
14112 let collaborators_by_replica_id = collaborators_by_peer_id
14113 .iter()
14114 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
14115 .collect::<HashMap<_, _>>();
14116 self.buffer_snapshot
14117 .selections_in_range(range, false)
14118 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
14119 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
14120 let participant_index = participant_indices.get(&collaborator.user_id).copied();
14121 let user_name = participant_names.get(&collaborator.user_id).cloned();
14122 Some(RemoteSelection {
14123 replica_id,
14124 selection,
14125 cursor_shape,
14126 line_mode,
14127 participant_index,
14128 peer_id: collaborator.peer_id,
14129 user_name,
14130 })
14131 })
14132 }
14133
14134 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
14135 self.display_snapshot.buffer_snapshot.language_at(position)
14136 }
14137
14138 pub fn is_focused(&self) -> bool {
14139 self.is_focused
14140 }
14141
14142 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14143 self.placeholder_text.as_ref()
14144 }
14145
14146 pub fn scroll_position(&self) -> gpui::Point<f32> {
14147 self.scroll_anchor.scroll_position(&self.display_snapshot)
14148 }
14149
14150 fn gutter_dimensions(
14151 &self,
14152 font_id: FontId,
14153 font_size: Pixels,
14154 em_width: Pixels,
14155 em_advance: Pixels,
14156 max_line_number_width: Pixels,
14157 cx: &AppContext,
14158 ) -> GutterDimensions {
14159 if !self.show_gutter {
14160 return GutterDimensions::default();
14161 }
14162 let descent = cx.text_system().descent(font_id, font_size);
14163
14164 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14165 matches!(
14166 ProjectSettings::get_global(cx).git.git_gutter,
14167 Some(GitGutterSetting::TrackedFiles)
14168 )
14169 });
14170 let gutter_settings = EditorSettings::get_global(cx).gutter;
14171 let show_line_numbers = self
14172 .show_line_numbers
14173 .unwrap_or(gutter_settings.line_numbers);
14174 let line_gutter_width = if show_line_numbers {
14175 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14176 let min_width_for_number_on_gutter = em_advance * 4.0;
14177 max_line_number_width.max(min_width_for_number_on_gutter)
14178 } else {
14179 0.0.into()
14180 };
14181
14182 let show_code_actions = self
14183 .show_code_actions
14184 .unwrap_or(gutter_settings.code_actions);
14185
14186 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14187
14188 let git_blame_entries_width =
14189 self.git_blame_gutter_max_author_length
14190 .map(|max_author_length| {
14191 // Length of the author name, but also space for the commit hash,
14192 // the spacing and the timestamp.
14193 let max_char_count = max_author_length
14194 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14195 + 7 // length of commit sha
14196 + 14 // length of max relative timestamp ("60 minutes ago")
14197 + 4; // gaps and margins
14198
14199 em_advance * max_char_count
14200 });
14201
14202 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14203 left_padding += if show_code_actions || show_runnables {
14204 em_width * 3.0
14205 } else if show_git_gutter && show_line_numbers {
14206 em_width * 2.0
14207 } else if show_git_gutter || show_line_numbers {
14208 em_width
14209 } else {
14210 px(0.)
14211 };
14212
14213 let right_padding = if gutter_settings.folds && show_line_numbers {
14214 em_width * 4.0
14215 } else if gutter_settings.folds {
14216 em_width * 3.0
14217 } else if show_line_numbers {
14218 em_width
14219 } else {
14220 px(0.)
14221 };
14222
14223 GutterDimensions {
14224 left_padding,
14225 right_padding,
14226 width: line_gutter_width + left_padding + right_padding,
14227 margin: -descent,
14228 git_blame_entries_width,
14229 }
14230 }
14231
14232 pub fn render_crease_toggle(
14233 &self,
14234 buffer_row: MultiBufferRow,
14235 row_contains_cursor: bool,
14236 editor: View<Editor>,
14237 cx: &mut WindowContext,
14238 ) -> Option<AnyElement> {
14239 let folded = self.is_line_folded(buffer_row);
14240 let mut is_foldable = false;
14241
14242 if let Some(crease) = self
14243 .crease_snapshot
14244 .query_row(buffer_row, &self.buffer_snapshot)
14245 {
14246 is_foldable = true;
14247 match crease {
14248 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14249 if let Some(render_toggle) = render_toggle {
14250 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14251 if folded {
14252 editor.update(cx, |editor, cx| {
14253 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14254 });
14255 } else {
14256 editor.update(cx, |editor, cx| {
14257 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14258 });
14259 }
14260 });
14261 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14262 }
14263 }
14264 }
14265 }
14266
14267 is_foldable |= self.starts_indent(buffer_row);
14268
14269 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14270 Some(
14271 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14272 .toggle_state(folded)
14273 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14274 if folded {
14275 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14276 } else {
14277 this.fold_at(&FoldAt { buffer_row }, cx);
14278 }
14279 }))
14280 .into_any_element(),
14281 )
14282 } else {
14283 None
14284 }
14285 }
14286
14287 pub fn render_crease_trailer(
14288 &self,
14289 buffer_row: MultiBufferRow,
14290 cx: &mut WindowContext,
14291 ) -> Option<AnyElement> {
14292 let folded = self.is_line_folded(buffer_row);
14293 if let Crease::Inline { render_trailer, .. } = self
14294 .crease_snapshot
14295 .query_row(buffer_row, &self.buffer_snapshot)?
14296 {
14297 let render_trailer = render_trailer.as_ref()?;
14298 Some(render_trailer(buffer_row, folded, cx))
14299 } else {
14300 None
14301 }
14302 }
14303}
14304
14305impl Deref for EditorSnapshot {
14306 type Target = DisplaySnapshot;
14307
14308 fn deref(&self) -> &Self::Target {
14309 &self.display_snapshot
14310 }
14311}
14312
14313#[derive(Clone, Debug, PartialEq, Eq)]
14314pub enum EditorEvent {
14315 InputIgnored {
14316 text: Arc<str>,
14317 },
14318 InputHandled {
14319 utf16_range_to_replace: Option<Range<isize>>,
14320 text: Arc<str>,
14321 },
14322 ExcerptsAdded {
14323 buffer: Model<Buffer>,
14324 predecessor: ExcerptId,
14325 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14326 },
14327 ExcerptsRemoved {
14328 ids: Vec<ExcerptId>,
14329 },
14330 BufferFoldToggled {
14331 ids: Vec<ExcerptId>,
14332 folded: bool,
14333 },
14334 ExcerptsEdited {
14335 ids: Vec<ExcerptId>,
14336 },
14337 ExcerptsExpanded {
14338 ids: Vec<ExcerptId>,
14339 },
14340 BufferEdited,
14341 Edited {
14342 transaction_id: clock::Lamport,
14343 },
14344 Reparsed(BufferId),
14345 Focused,
14346 FocusedIn,
14347 Blurred,
14348 DirtyChanged,
14349 Saved,
14350 TitleChanged,
14351 DiffBaseChanged,
14352 SelectionsChanged {
14353 local: bool,
14354 },
14355 ScrollPositionChanged {
14356 local: bool,
14357 autoscroll: bool,
14358 },
14359 Closed,
14360 TransactionUndone {
14361 transaction_id: clock::Lamport,
14362 },
14363 TransactionBegun {
14364 transaction_id: clock::Lamport,
14365 },
14366 Reloaded,
14367 CursorShapeChanged,
14368}
14369
14370impl EventEmitter<EditorEvent> for Editor {}
14371
14372impl FocusableView for Editor {
14373 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14374 self.focus_handle.clone()
14375 }
14376}
14377
14378impl Render for Editor {
14379 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14380 let settings = ThemeSettings::get_global(cx);
14381
14382 let mut text_style = match self.mode {
14383 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14384 color: cx.theme().colors().editor_foreground,
14385 font_family: settings.ui_font.family.clone(),
14386 font_features: settings.ui_font.features.clone(),
14387 font_fallbacks: settings.ui_font.fallbacks.clone(),
14388 font_size: rems(0.875).into(),
14389 font_weight: settings.ui_font.weight,
14390 line_height: relative(settings.buffer_line_height.value()),
14391 ..Default::default()
14392 },
14393 EditorMode::Full => TextStyle {
14394 color: cx.theme().colors().editor_foreground,
14395 font_family: settings.buffer_font.family.clone(),
14396 font_features: settings.buffer_font.features.clone(),
14397 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14398 font_size: settings.buffer_font_size().into(),
14399 font_weight: settings.buffer_font.weight,
14400 line_height: relative(settings.buffer_line_height.value()),
14401 ..Default::default()
14402 },
14403 };
14404 if let Some(text_style_refinement) = &self.text_style_refinement {
14405 text_style.refine(text_style_refinement)
14406 }
14407
14408 let background = match self.mode {
14409 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14410 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14411 EditorMode::Full => cx.theme().colors().editor_background,
14412 };
14413
14414 EditorElement::new(
14415 cx.view(),
14416 EditorStyle {
14417 background,
14418 local_player: cx.theme().players().local(),
14419 text: text_style,
14420 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14421 syntax: cx.theme().syntax().clone(),
14422 status: cx.theme().status().clone(),
14423 inlay_hints_style: make_inlay_hints_style(cx),
14424 inline_completion_styles: make_suggestion_styles(cx),
14425 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14426 },
14427 )
14428 }
14429}
14430
14431impl ViewInputHandler for Editor {
14432 fn text_for_range(
14433 &mut self,
14434 range_utf16: Range<usize>,
14435 adjusted_range: &mut Option<Range<usize>>,
14436 cx: &mut ViewContext<Self>,
14437 ) -> Option<String> {
14438 let snapshot = self.buffer.read(cx).read(cx);
14439 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14440 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14441 if (start.0..end.0) != range_utf16 {
14442 adjusted_range.replace(start.0..end.0);
14443 }
14444 Some(snapshot.text_for_range(start..end).collect())
14445 }
14446
14447 fn selected_text_range(
14448 &mut self,
14449 ignore_disabled_input: bool,
14450 cx: &mut ViewContext<Self>,
14451 ) -> Option<UTF16Selection> {
14452 // Prevent the IME menu from appearing when holding down an alphabetic key
14453 // while input is disabled.
14454 if !ignore_disabled_input && !self.input_enabled {
14455 return None;
14456 }
14457
14458 let selection = self.selections.newest::<OffsetUtf16>(cx);
14459 let range = selection.range();
14460
14461 Some(UTF16Selection {
14462 range: range.start.0..range.end.0,
14463 reversed: selection.reversed,
14464 })
14465 }
14466
14467 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14468 let snapshot = self.buffer.read(cx).read(cx);
14469 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14470 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14471 }
14472
14473 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14474 self.clear_highlights::<InputComposition>(cx);
14475 self.ime_transaction.take();
14476 }
14477
14478 fn replace_text_in_range(
14479 &mut self,
14480 range_utf16: Option<Range<usize>>,
14481 text: &str,
14482 cx: &mut ViewContext<Self>,
14483 ) {
14484 if !self.input_enabled {
14485 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14486 return;
14487 }
14488
14489 self.transact(cx, |this, cx| {
14490 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14491 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14492 Some(this.selection_replacement_ranges(range_utf16, cx))
14493 } else {
14494 this.marked_text_ranges(cx)
14495 };
14496
14497 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14498 let newest_selection_id = this.selections.newest_anchor().id;
14499 this.selections
14500 .all::<OffsetUtf16>(cx)
14501 .iter()
14502 .zip(ranges_to_replace.iter())
14503 .find_map(|(selection, range)| {
14504 if selection.id == newest_selection_id {
14505 Some(
14506 (range.start.0 as isize - selection.head().0 as isize)
14507 ..(range.end.0 as isize - selection.head().0 as isize),
14508 )
14509 } else {
14510 None
14511 }
14512 })
14513 });
14514
14515 cx.emit(EditorEvent::InputHandled {
14516 utf16_range_to_replace: range_to_replace,
14517 text: text.into(),
14518 });
14519
14520 if let Some(new_selected_ranges) = new_selected_ranges {
14521 this.change_selections(None, cx, |selections| {
14522 selections.select_ranges(new_selected_ranges)
14523 });
14524 this.backspace(&Default::default(), cx);
14525 }
14526
14527 this.handle_input(text, cx);
14528 });
14529
14530 if let Some(transaction) = self.ime_transaction {
14531 self.buffer.update(cx, |buffer, cx| {
14532 buffer.group_until_transaction(transaction, cx);
14533 });
14534 }
14535
14536 self.unmark_text(cx);
14537 }
14538
14539 fn replace_and_mark_text_in_range(
14540 &mut self,
14541 range_utf16: Option<Range<usize>>,
14542 text: &str,
14543 new_selected_range_utf16: Option<Range<usize>>,
14544 cx: &mut ViewContext<Self>,
14545 ) {
14546 if !self.input_enabled {
14547 return;
14548 }
14549
14550 let transaction = self.transact(cx, |this, cx| {
14551 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14552 let snapshot = this.buffer.read(cx).read(cx);
14553 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14554 for marked_range in &mut marked_ranges {
14555 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14556 marked_range.start.0 += relative_range_utf16.start;
14557 marked_range.start =
14558 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14559 marked_range.end =
14560 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14561 }
14562 }
14563 Some(marked_ranges)
14564 } else if let Some(range_utf16) = range_utf16 {
14565 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14566 Some(this.selection_replacement_ranges(range_utf16, cx))
14567 } else {
14568 None
14569 };
14570
14571 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14572 let newest_selection_id = this.selections.newest_anchor().id;
14573 this.selections
14574 .all::<OffsetUtf16>(cx)
14575 .iter()
14576 .zip(ranges_to_replace.iter())
14577 .find_map(|(selection, range)| {
14578 if selection.id == newest_selection_id {
14579 Some(
14580 (range.start.0 as isize - selection.head().0 as isize)
14581 ..(range.end.0 as isize - selection.head().0 as isize),
14582 )
14583 } else {
14584 None
14585 }
14586 })
14587 });
14588
14589 cx.emit(EditorEvent::InputHandled {
14590 utf16_range_to_replace: range_to_replace,
14591 text: text.into(),
14592 });
14593
14594 if let Some(ranges) = ranges_to_replace {
14595 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14596 }
14597
14598 let marked_ranges = {
14599 let snapshot = this.buffer.read(cx).read(cx);
14600 this.selections
14601 .disjoint_anchors()
14602 .iter()
14603 .map(|selection| {
14604 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14605 })
14606 .collect::<Vec<_>>()
14607 };
14608
14609 if text.is_empty() {
14610 this.unmark_text(cx);
14611 } else {
14612 this.highlight_text::<InputComposition>(
14613 marked_ranges.clone(),
14614 HighlightStyle {
14615 underline: Some(UnderlineStyle {
14616 thickness: px(1.),
14617 color: None,
14618 wavy: false,
14619 }),
14620 ..Default::default()
14621 },
14622 cx,
14623 );
14624 }
14625
14626 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14627 let use_autoclose = this.use_autoclose;
14628 let use_auto_surround = this.use_auto_surround;
14629 this.set_use_autoclose(false);
14630 this.set_use_auto_surround(false);
14631 this.handle_input(text, cx);
14632 this.set_use_autoclose(use_autoclose);
14633 this.set_use_auto_surround(use_auto_surround);
14634
14635 if let Some(new_selected_range) = new_selected_range_utf16 {
14636 let snapshot = this.buffer.read(cx).read(cx);
14637 let new_selected_ranges = marked_ranges
14638 .into_iter()
14639 .map(|marked_range| {
14640 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14641 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14642 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14643 snapshot.clip_offset_utf16(new_start, Bias::Left)
14644 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14645 })
14646 .collect::<Vec<_>>();
14647
14648 drop(snapshot);
14649 this.change_selections(None, cx, |selections| {
14650 selections.select_ranges(new_selected_ranges)
14651 });
14652 }
14653 });
14654
14655 self.ime_transaction = self.ime_transaction.or(transaction);
14656 if let Some(transaction) = self.ime_transaction {
14657 self.buffer.update(cx, |buffer, cx| {
14658 buffer.group_until_transaction(transaction, cx);
14659 });
14660 }
14661
14662 if self.text_highlights::<InputComposition>(cx).is_none() {
14663 self.ime_transaction.take();
14664 }
14665 }
14666
14667 fn bounds_for_range(
14668 &mut self,
14669 range_utf16: Range<usize>,
14670 element_bounds: gpui::Bounds<Pixels>,
14671 cx: &mut ViewContext<Self>,
14672 ) -> Option<gpui::Bounds<Pixels>> {
14673 let text_layout_details = self.text_layout_details(cx);
14674 let gpui::Point {
14675 x: em_width,
14676 y: line_height,
14677 } = self.character_size(cx);
14678
14679 let snapshot = self.snapshot(cx);
14680 let scroll_position = snapshot.scroll_position();
14681 let scroll_left = scroll_position.x * em_width;
14682
14683 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14684 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14685 + self.gutter_dimensions.width
14686 + self.gutter_dimensions.margin;
14687 let y = line_height * (start.row().as_f32() - scroll_position.y);
14688
14689 Some(Bounds {
14690 origin: element_bounds.origin + point(x, y),
14691 size: size(em_width, line_height),
14692 })
14693 }
14694}
14695
14696trait SelectionExt {
14697 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14698 fn spanned_rows(
14699 &self,
14700 include_end_if_at_line_start: bool,
14701 map: &DisplaySnapshot,
14702 ) -> Range<MultiBufferRow>;
14703}
14704
14705impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14706 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14707 let start = self
14708 .start
14709 .to_point(&map.buffer_snapshot)
14710 .to_display_point(map);
14711 let end = self
14712 .end
14713 .to_point(&map.buffer_snapshot)
14714 .to_display_point(map);
14715 if self.reversed {
14716 end..start
14717 } else {
14718 start..end
14719 }
14720 }
14721
14722 fn spanned_rows(
14723 &self,
14724 include_end_if_at_line_start: bool,
14725 map: &DisplaySnapshot,
14726 ) -> Range<MultiBufferRow> {
14727 let start = self.start.to_point(&map.buffer_snapshot);
14728 let mut end = self.end.to_point(&map.buffer_snapshot);
14729 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14730 end.row -= 1;
14731 }
14732
14733 let buffer_start = map.prev_line_boundary(start).0;
14734 let buffer_end = map.next_line_boundary(end).0;
14735 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14736 }
14737}
14738
14739impl<T: InvalidationRegion> InvalidationStack<T> {
14740 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14741 where
14742 S: Clone + ToOffset,
14743 {
14744 while let Some(region) = self.last() {
14745 let all_selections_inside_invalidation_ranges =
14746 if selections.len() == region.ranges().len() {
14747 selections
14748 .iter()
14749 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14750 .all(|(selection, invalidation_range)| {
14751 let head = selection.head().to_offset(buffer);
14752 invalidation_range.start <= head && invalidation_range.end >= head
14753 })
14754 } else {
14755 false
14756 };
14757
14758 if all_selections_inside_invalidation_ranges {
14759 break;
14760 } else {
14761 self.pop();
14762 }
14763 }
14764 }
14765}
14766
14767impl<T> Default for InvalidationStack<T> {
14768 fn default() -> Self {
14769 Self(Default::default())
14770 }
14771}
14772
14773impl<T> Deref for InvalidationStack<T> {
14774 type Target = Vec<T>;
14775
14776 fn deref(&self) -> &Self::Target {
14777 &self.0
14778 }
14779}
14780
14781impl<T> DerefMut for InvalidationStack<T> {
14782 fn deref_mut(&mut self) -> &mut Self::Target {
14783 &mut self.0
14784 }
14785}
14786
14787impl InvalidationRegion for SnippetState {
14788 fn ranges(&self) -> &[Range<Anchor>] {
14789 &self.ranges[self.active_index]
14790 }
14791}
14792
14793pub fn diagnostic_block_renderer(
14794 diagnostic: Diagnostic,
14795 max_message_rows: Option<u8>,
14796 allow_closing: bool,
14797 _is_valid: bool,
14798) -> RenderBlock {
14799 let (text_without_backticks, code_ranges) =
14800 highlight_diagnostic_message(&diagnostic, max_message_rows);
14801
14802 Arc::new(move |cx: &mut BlockContext| {
14803 let group_id: SharedString = cx.block_id.to_string().into();
14804
14805 let mut text_style = cx.text_style().clone();
14806 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14807 let theme_settings = ThemeSettings::get_global(cx);
14808 text_style.font_family = theme_settings.buffer_font.family.clone();
14809 text_style.font_style = theme_settings.buffer_font.style;
14810 text_style.font_features = theme_settings.buffer_font.features.clone();
14811 text_style.font_weight = theme_settings.buffer_font.weight;
14812
14813 let multi_line_diagnostic = diagnostic.message.contains('\n');
14814
14815 let buttons = |diagnostic: &Diagnostic| {
14816 if multi_line_diagnostic {
14817 v_flex()
14818 } else {
14819 h_flex()
14820 }
14821 .when(allow_closing, |div| {
14822 div.children(diagnostic.is_primary.then(|| {
14823 IconButton::new("close-block", IconName::XCircle)
14824 .icon_color(Color::Muted)
14825 .size(ButtonSize::Compact)
14826 .style(ButtonStyle::Transparent)
14827 .visible_on_hover(group_id.clone())
14828 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14829 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14830 }))
14831 })
14832 .child(
14833 IconButton::new("copy-block", IconName::Copy)
14834 .icon_color(Color::Muted)
14835 .size(ButtonSize::Compact)
14836 .style(ButtonStyle::Transparent)
14837 .visible_on_hover(group_id.clone())
14838 .on_click({
14839 let message = diagnostic.message.clone();
14840 move |_click, cx| {
14841 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14842 }
14843 })
14844 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14845 )
14846 };
14847
14848 let icon_size = buttons(&diagnostic)
14849 .into_any_element()
14850 .layout_as_root(AvailableSpace::min_size(), cx);
14851
14852 h_flex()
14853 .id(cx.block_id)
14854 .group(group_id.clone())
14855 .relative()
14856 .size_full()
14857 .block_mouse_down()
14858 .pl(cx.gutter_dimensions.width)
14859 .w(cx.max_width - cx.gutter_dimensions.full_width())
14860 .child(
14861 div()
14862 .flex()
14863 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14864 .flex_shrink(),
14865 )
14866 .child(buttons(&diagnostic))
14867 .child(div().flex().flex_shrink_0().child(
14868 StyledText::new(text_without_backticks.clone()).with_highlights(
14869 &text_style,
14870 code_ranges.iter().map(|range| {
14871 (
14872 range.clone(),
14873 HighlightStyle {
14874 font_weight: Some(FontWeight::BOLD),
14875 ..Default::default()
14876 },
14877 )
14878 }),
14879 ),
14880 ))
14881 .into_any_element()
14882 })
14883}
14884
14885fn inline_completion_edit_text(
14886 editor_snapshot: &EditorSnapshot,
14887 edits: &Vec<(Range<Anchor>, String)>,
14888 include_deletions: bool,
14889 cx: &WindowContext,
14890) -> InlineCompletionText {
14891 let edit_start = edits
14892 .first()
14893 .unwrap()
14894 .0
14895 .start
14896 .to_display_point(editor_snapshot);
14897
14898 let mut text = String::new();
14899 let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
14900 let mut highlights = Vec::new();
14901 for (old_range, new_text) in edits {
14902 let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
14903 text.extend(
14904 editor_snapshot
14905 .buffer_snapshot
14906 .chunks(offset..old_offset_range.start, false)
14907 .map(|chunk| chunk.text),
14908 );
14909 offset = old_offset_range.end;
14910
14911 let start = text.len();
14912 let color = if include_deletions && new_text.is_empty() {
14913 text.extend(
14914 editor_snapshot
14915 .buffer_snapshot
14916 .chunks(old_offset_range.start..offset, false)
14917 .map(|chunk| chunk.text),
14918 );
14919 cx.theme().status().deleted_background
14920 } else {
14921 text.push_str(new_text);
14922 cx.theme().status().created_background
14923 };
14924 let end = text.len();
14925
14926 highlights.push((
14927 start..end,
14928 HighlightStyle {
14929 background_color: Some(color),
14930 ..Default::default()
14931 },
14932 ));
14933 }
14934
14935 let edit_end = edits
14936 .last()
14937 .unwrap()
14938 .0
14939 .end
14940 .to_display_point(editor_snapshot);
14941 let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
14942 .to_offset(editor_snapshot, Bias::Right);
14943 text.extend(
14944 editor_snapshot
14945 .buffer_snapshot
14946 .chunks(offset..end_of_line, false)
14947 .map(|chunk| chunk.text),
14948 );
14949
14950 InlineCompletionText::Edit {
14951 text: text.into(),
14952 highlights,
14953 }
14954}
14955
14956pub fn highlight_diagnostic_message(
14957 diagnostic: &Diagnostic,
14958 mut max_message_rows: Option<u8>,
14959) -> (SharedString, Vec<Range<usize>>) {
14960 let mut text_without_backticks = String::new();
14961 let mut code_ranges = Vec::new();
14962
14963 if let Some(source) = &diagnostic.source {
14964 text_without_backticks.push_str(source);
14965 code_ranges.push(0..source.len());
14966 text_without_backticks.push_str(": ");
14967 }
14968
14969 let mut prev_offset = 0;
14970 let mut in_code_block = false;
14971 let has_row_limit = max_message_rows.is_some();
14972 let mut newline_indices = diagnostic
14973 .message
14974 .match_indices('\n')
14975 .filter(|_| has_row_limit)
14976 .map(|(ix, _)| ix)
14977 .fuse()
14978 .peekable();
14979
14980 for (quote_ix, _) in diagnostic
14981 .message
14982 .match_indices('`')
14983 .chain([(diagnostic.message.len(), "")])
14984 {
14985 let mut first_newline_ix = None;
14986 let mut last_newline_ix = None;
14987 while let Some(newline_ix) = newline_indices.peek() {
14988 if *newline_ix < quote_ix {
14989 if first_newline_ix.is_none() {
14990 first_newline_ix = Some(*newline_ix);
14991 }
14992 last_newline_ix = Some(*newline_ix);
14993
14994 if let Some(rows_left) = &mut max_message_rows {
14995 if *rows_left == 0 {
14996 break;
14997 } else {
14998 *rows_left -= 1;
14999 }
15000 }
15001 let _ = newline_indices.next();
15002 } else {
15003 break;
15004 }
15005 }
15006 let prev_len = text_without_backticks.len();
15007 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
15008 text_without_backticks.push_str(new_text);
15009 if in_code_block {
15010 code_ranges.push(prev_len..text_without_backticks.len());
15011 }
15012 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
15013 in_code_block = !in_code_block;
15014 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
15015 text_without_backticks.push_str("...");
15016 break;
15017 }
15018 }
15019
15020 (text_without_backticks.into(), code_ranges)
15021}
15022
15023fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
15024 match severity {
15025 DiagnosticSeverity::ERROR => colors.error,
15026 DiagnosticSeverity::WARNING => colors.warning,
15027 DiagnosticSeverity::INFORMATION => colors.info,
15028 DiagnosticSeverity::HINT => colors.info,
15029 _ => colors.ignored,
15030 }
15031}
15032
15033pub fn styled_runs_for_code_label<'a>(
15034 label: &'a CodeLabel,
15035 syntax_theme: &'a theme::SyntaxTheme,
15036) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
15037 let fade_out = HighlightStyle {
15038 fade_out: Some(0.35),
15039 ..Default::default()
15040 };
15041
15042 let mut prev_end = label.filter_range.end;
15043 label
15044 .runs
15045 .iter()
15046 .enumerate()
15047 .flat_map(move |(ix, (range, highlight_id))| {
15048 let style = if let Some(style) = highlight_id.style(syntax_theme) {
15049 style
15050 } else {
15051 return Default::default();
15052 };
15053 let mut muted_style = style;
15054 muted_style.highlight(fade_out);
15055
15056 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
15057 if range.start >= label.filter_range.end {
15058 if range.start > prev_end {
15059 runs.push((prev_end..range.start, fade_out));
15060 }
15061 runs.push((range.clone(), muted_style));
15062 } else if range.end <= label.filter_range.end {
15063 runs.push((range.clone(), style));
15064 } else {
15065 runs.push((range.start..label.filter_range.end, style));
15066 runs.push((label.filter_range.end..range.end, muted_style));
15067 }
15068 prev_end = cmp::max(prev_end, range.end);
15069
15070 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
15071 runs.push((prev_end..label.text.len(), fade_out));
15072 }
15073
15074 runs
15075 })
15076}
15077
15078pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
15079 let mut prev_index = 0;
15080 let mut prev_codepoint: Option<char> = None;
15081 text.char_indices()
15082 .chain([(text.len(), '\0')])
15083 .filter_map(move |(index, codepoint)| {
15084 let prev_codepoint = prev_codepoint.replace(codepoint)?;
15085 let is_boundary = index == text.len()
15086 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
15087 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
15088 if is_boundary {
15089 let chunk = &text[prev_index..index];
15090 prev_index = index;
15091 Some(chunk)
15092 } else {
15093 None
15094 }
15095 })
15096}
15097
15098pub trait RangeToAnchorExt: Sized {
15099 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
15100
15101 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
15102 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
15103 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
15104 }
15105}
15106
15107impl<T: ToOffset> RangeToAnchorExt for Range<T> {
15108 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
15109 let start_offset = self.start.to_offset(snapshot);
15110 let end_offset = self.end.to_offset(snapshot);
15111 if start_offset == end_offset {
15112 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
15113 } else {
15114 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
15115 }
15116 }
15117}
15118
15119pub trait RowExt {
15120 fn as_f32(&self) -> f32;
15121
15122 fn next_row(&self) -> Self;
15123
15124 fn previous_row(&self) -> Self;
15125
15126 fn minus(&self, other: Self) -> u32;
15127}
15128
15129impl RowExt for DisplayRow {
15130 fn as_f32(&self) -> f32 {
15131 self.0 as f32
15132 }
15133
15134 fn next_row(&self) -> Self {
15135 Self(self.0 + 1)
15136 }
15137
15138 fn previous_row(&self) -> Self {
15139 Self(self.0.saturating_sub(1))
15140 }
15141
15142 fn minus(&self, other: Self) -> u32 {
15143 self.0 - other.0
15144 }
15145}
15146
15147impl RowExt for MultiBufferRow {
15148 fn as_f32(&self) -> f32 {
15149 self.0 as f32
15150 }
15151
15152 fn next_row(&self) -> Self {
15153 Self(self.0 + 1)
15154 }
15155
15156 fn previous_row(&self) -> Self {
15157 Self(self.0.saturating_sub(1))
15158 }
15159
15160 fn minus(&self, other: Self) -> u32 {
15161 self.0 - other.0
15162 }
15163}
15164
15165trait RowRangeExt {
15166 type Row;
15167
15168 fn len(&self) -> usize;
15169
15170 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15171}
15172
15173impl RowRangeExt for Range<MultiBufferRow> {
15174 type Row = MultiBufferRow;
15175
15176 fn len(&self) -> usize {
15177 (self.end.0 - self.start.0) as usize
15178 }
15179
15180 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15181 (self.start.0..self.end.0).map(MultiBufferRow)
15182 }
15183}
15184
15185impl RowRangeExt for Range<DisplayRow> {
15186 type Row = DisplayRow;
15187
15188 fn len(&self) -> usize {
15189 (self.end.0 - self.start.0) as usize
15190 }
15191
15192 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15193 (self.start.0..self.end.0).map(DisplayRow)
15194 }
15195}
15196
15197fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15198 if hunk.diff_base_byte_range.is_empty() {
15199 DiffHunkStatus::Added
15200 } else if hunk.row_range.is_empty() {
15201 DiffHunkStatus::Removed
15202 } else {
15203 DiffHunkStatus::Modified
15204 }
15205}
15206
15207/// If select range has more than one line, we
15208/// just point the cursor to range.start.
15209fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15210 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15211 range
15212 } else {
15213 range.start..range.start
15214 }
15215}
15216
15217pub struct KillRing(ClipboardItem);
15218impl Global for KillRing {}
15219
15220const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);