1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behavior.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod clangd_ext;
19mod code_context_menus;
20pub mod display_map;
21mod editor_settings;
22mod editor_settings_controls;
23mod element;
24mod git;
25mod highlight_matching_bracket;
26mod hover_links;
27mod hover_popover;
28mod hunk_diff;
29mod indent_guides;
30mod inlay_hint_cache;
31pub mod items;
32mod linked_editing_ranges;
33mod lsp_ext;
34mod mouse_context_menu;
35pub mod movement;
36mod persistence;
37mod proposed_changes_editor;
38mod rust_analyzer_ext;
39pub mod scroll;
40mod selections_collection;
41pub mod tasks;
42
43#[cfg(test)]
44mod editor_tests;
45#[cfg(test)]
46mod inline_completion_tests;
47mod signature_help;
48#[cfg(any(test, feature = "test-support"))]
49pub mod test;
50
51use ::git::diff::DiffHunkStatus;
52pub(crate) use actions::*;
53pub use actions::{OpenExcerpts, OpenExcerptsSplit};
54use aho_corasick::AhoCorasick;
55use anyhow::{anyhow, Context as _, Result};
56use blink_manager::BlinkManager;
57use client::{Collaborator, ParticipantIndex};
58use clock::ReplicaId;
59use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
60use convert_case::{Case, Casing};
61use display_map::*;
62pub use display_map::{DisplayPoint, FoldPlaceholder};
63pub use editor_settings::{
64 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
65};
66pub use editor_settings_controls::*;
67use element::LineWithInvisibles;
68pub use element::{
69 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
70};
71use futures::{future, FutureExt};
72use fuzzy::StringMatchCandidate;
73
74use code_context_menus::{
75 AvailableCodeAction, CodeActionContents, CodeActionsItem, CodeActionsMenu, CodeContextMenu,
76 CompletionEntry, CompletionsMenu, ContextMenuOrigin,
77};
78use git::blame::GitBlame;
79use gpui::{
80 div, impl_actions, point, prelude::*, px, relative, size, Action, AnyElement, AppContext,
81 AsyncWindowContext, AvailableSpace, Bounds, ClipboardEntry, ClipboardItem, Context,
82 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent, FocusableView, FontId,
83 FontWeight, Global, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, ModelContext,
84 MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString, Size, Styled, StyledText,
85 Subscription, Task, TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle,
86 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle,
87 WeakView, WindowContext,
88};
89use highlight_matching_bracket::refresh_matching_bracket_highlights;
90use hover_popover::{hide_hover, HoverState};
91pub(crate) use hunk_diff::HoveredHunk;
92use hunk_diff::{diff_hunk_to_display, DiffMap, DiffMapSnapshot};
93use indent_guides::ActiveIndentGuidesState;
94use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
95pub use inline_completion::Direction;
96use inline_completion::{InlineCompletionProvider, InlineCompletionProviderHandle};
97pub use items::MAX_TAB_TITLE_LEN;
98use itertools::Itertools;
99use language::{
100 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
101 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
102 CursorShape, Diagnostic, DiagnosticEntry, Documentation, IndentKind, IndentSize, Language,
103 OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
104};
105use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
106use linked_editing_ranges::refresh_linked_ranges;
107use mouse_context_menu::MouseContextMenu;
108pub use proposed_changes_editor::{
109 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
110};
111use similar::{ChangeTag, TextDiff};
112use std::iter::Peekable;
113use task::{ResolvedTask, TaskTemplate, TaskVariables};
114
115use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
116pub use lsp::CompletionContext;
117use lsp::{
118 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
119 LanguageServerId, LanguageServerName,
120};
121
122use movement::TextLayoutDetails;
123pub use multi_buffer::{
124 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
125 ToPoint,
126};
127use multi_buffer::{
128 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
129};
130use project::{
131 buffer_store::BufferChangeSet,
132 lsp_store::{FormatTarget, FormatTrigger, OpenLspBufferHandle},
133 project_settings::{GitGutterSetting, ProjectSettings},
134 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
135 LspStore, Project, ProjectItem, ProjectTransaction, TaskSourceKind,
136};
137use rand::prelude::*;
138use rpc::{proto::*, ErrorExt};
139use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
140use selections_collection::{
141 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
142};
143use serde::{Deserialize, Serialize};
144use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
145use smallvec::SmallVec;
146use snippet::Snippet;
147use std::{
148 any::TypeId,
149 borrow::Cow,
150 cell::RefCell,
151 cmp::{self, Ordering, Reverse},
152 mem,
153 num::NonZeroU32,
154 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
155 path::{Path, PathBuf},
156 rc::Rc,
157 sync::Arc,
158 time::{Duration, Instant},
159};
160pub use sum_tree::Bias;
161use sum_tree::TreeMap;
162use text::{BufferId, OffsetUtf16, Rope};
163use theme::{
164 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
165 ThemeColors, ThemeSettings,
166};
167use ui::{
168 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
169 PopoverMenuHandle, Tooltip,
170};
171use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
172use workspace::item::{ItemHandle, PreviewTabsSettings};
173use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
174use workspace::{
175 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
176};
177use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
178
179use crate::hover_links::{find_url, find_url_from_range};
180use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
181
182pub const FILE_HEADER_HEIGHT: u32 = 2;
183pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
184pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
185pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
186const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
187const MAX_LINE_LEN: usize = 1024;
188const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
189const MAX_SELECTION_HISTORY_LEN: usize = 1024;
190pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
191#[doc(hidden)]
192pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
193
194pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
195pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
196
197pub fn render_parsed_markdown(
198 element_id: impl Into<ElementId>,
199 parsed: &language::ParsedMarkdown,
200 editor_style: &EditorStyle,
201 workspace: Option<WeakView<Workspace>>,
202 cx: &mut WindowContext,
203) -> InteractiveText {
204 let code_span_background_color = cx
205 .theme()
206 .colors()
207 .editor_document_highlight_read_background;
208
209 let highlights = gpui::combine_highlights(
210 parsed.highlights.iter().filter_map(|(range, highlight)| {
211 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
212 Some((range.clone(), highlight))
213 }),
214 parsed
215 .regions
216 .iter()
217 .zip(&parsed.region_ranges)
218 .filter_map(|(region, range)| {
219 if region.code {
220 Some((
221 range.clone(),
222 HighlightStyle {
223 background_color: Some(code_span_background_color),
224 ..Default::default()
225 },
226 ))
227 } else {
228 None
229 }
230 }),
231 );
232
233 let mut links = Vec::new();
234 let mut link_ranges = Vec::new();
235 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
236 if let Some(link) = region.link.clone() {
237 links.push(link);
238 link_ranges.push(range.clone());
239 }
240 }
241
242 InteractiveText::new(
243 element_id,
244 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
245 )
246 .on_click(link_ranges, move |clicked_range_ix, cx| {
247 match &links[clicked_range_ix] {
248 markdown::Link::Web { url } => cx.open_url(url),
249 markdown::Link::Path { path } => {
250 if let Some(workspace) = &workspace {
251 _ = workspace.update(cx, |workspace, cx| {
252 workspace.open_abs_path(path.clone(), false, cx).detach();
253 });
254 }
255 }
256 }
257 })
258}
259
260#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
261pub(crate) enum InlayId {
262 InlineCompletion(usize),
263 Hint(usize),
264}
265
266impl InlayId {
267 fn id(&self) -> usize {
268 match self {
269 Self::InlineCompletion(id) => *id,
270 Self::Hint(id) => *id,
271 }
272 }
273}
274
275enum DiffRowHighlight {}
276enum DocumentHighlightRead {}
277enum DocumentHighlightWrite {}
278enum InputComposition {}
279
280#[derive(Debug, Copy, Clone, PartialEq, Eq)]
281pub enum Navigated {
282 Yes,
283 No,
284}
285
286impl Navigated {
287 pub fn from_bool(yes: bool) -> Navigated {
288 if yes {
289 Navigated::Yes
290 } else {
291 Navigated::No
292 }
293 }
294}
295
296pub fn init_settings(cx: &mut AppContext) {
297 EditorSettings::register(cx);
298}
299
300pub fn init(cx: &mut AppContext) {
301 init_settings(cx);
302
303 workspace::register_project_item::<Editor>(cx);
304 workspace::FollowableViewRegistry::register::<Editor>(cx);
305 workspace::register_serializable_item::<Editor>(cx);
306
307 cx.observe_new_views(
308 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
309 workspace.register_action(Editor::new_file);
310 workspace.register_action(Editor::new_file_vertical);
311 workspace.register_action(Editor::new_file_horizontal);
312 },
313 )
314 .detach();
315
316 cx.on_action(move |_: &workspace::NewFile, cx| {
317 let app_state = workspace::AppState::global(cx);
318 if let Some(app_state) = app_state.upgrade() {
319 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
320 Editor::new_file(workspace, &Default::default(), cx)
321 })
322 .detach();
323 }
324 });
325 cx.on_action(move |_: &workspace::NewWindow, cx| {
326 let app_state = workspace::AppState::global(cx);
327 if let Some(app_state) = app_state.upgrade() {
328 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
329 Editor::new_file(workspace, &Default::default(), cx)
330 })
331 .detach();
332 }
333 });
334 git::project_diff::init(cx);
335}
336
337pub struct SearchWithinRange;
338
339trait InvalidationRegion {
340 fn ranges(&self) -> &[Range<Anchor>];
341}
342
343#[derive(Clone, Debug, PartialEq)]
344pub enum SelectPhase {
345 Begin {
346 position: DisplayPoint,
347 add: bool,
348 click_count: usize,
349 },
350 BeginColumnar {
351 position: DisplayPoint,
352 reset: bool,
353 goal_column: u32,
354 },
355 Extend {
356 position: DisplayPoint,
357 click_count: usize,
358 },
359 Update {
360 position: DisplayPoint,
361 goal_column: u32,
362 scroll_delta: gpui::Point<f32>,
363 },
364 End,
365}
366
367#[derive(Clone, Debug)]
368pub enum SelectMode {
369 Character,
370 Word(Range<Anchor>),
371 Line(Range<Anchor>),
372 All,
373}
374
375#[derive(Copy, Clone, PartialEq, Eq, Debug)]
376pub enum EditorMode {
377 SingleLine { auto_width: bool },
378 AutoHeight { max_lines: usize },
379 Full,
380}
381
382#[derive(Copy, Clone, Debug)]
383pub enum SoftWrap {
384 /// Prefer not to wrap at all.
385 ///
386 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
387 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
388 GitDiff,
389 /// Prefer a single line generally, unless an overly long line is encountered.
390 None,
391 /// Soft wrap lines that exceed the editor width.
392 EditorWidth,
393 /// Soft wrap lines at the preferred line length.
394 Column(u32),
395 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
396 Bounded(u32),
397}
398
399#[derive(Clone)]
400pub struct EditorStyle {
401 pub background: Hsla,
402 pub local_player: PlayerColor,
403 pub text: TextStyle,
404 pub scrollbar_width: Pixels,
405 pub syntax: Arc<SyntaxTheme>,
406 pub status: StatusColors,
407 pub inlay_hints_style: HighlightStyle,
408 pub inline_completion_styles: InlineCompletionStyles,
409 pub unnecessary_code_fade: f32,
410}
411
412impl Default for EditorStyle {
413 fn default() -> Self {
414 Self {
415 background: Hsla::default(),
416 local_player: PlayerColor::default(),
417 text: TextStyle::default(),
418 scrollbar_width: Pixels::default(),
419 syntax: Default::default(),
420 // HACK: Status colors don't have a real default.
421 // We should look into removing the status colors from the editor
422 // style and retrieve them directly from the theme.
423 status: StatusColors::dark(),
424 inlay_hints_style: HighlightStyle::default(),
425 inline_completion_styles: InlineCompletionStyles {
426 insertion: HighlightStyle::default(),
427 whitespace: HighlightStyle::default(),
428 },
429 unnecessary_code_fade: Default::default(),
430 }
431 }
432}
433
434pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
435 let show_background = language_settings::language_settings(None, None, cx)
436 .inlay_hints
437 .show_background;
438
439 HighlightStyle {
440 color: Some(cx.theme().status().hint),
441 background_color: show_background.then(|| cx.theme().status().hint_background),
442 ..HighlightStyle::default()
443 }
444}
445
446pub fn make_suggestion_styles(cx: &WindowContext) -> InlineCompletionStyles {
447 InlineCompletionStyles {
448 insertion: HighlightStyle {
449 color: Some(cx.theme().status().predictive),
450 ..HighlightStyle::default()
451 },
452 whitespace: HighlightStyle {
453 background_color: Some(cx.theme().status().created_background),
454 ..HighlightStyle::default()
455 },
456 }
457}
458
459type CompletionId = usize;
460
461#[derive(Debug, Clone)]
462struct InlineCompletionMenuHint {
463 provider_name: &'static str,
464 text: InlineCompletionText,
465}
466
467#[derive(Clone, Debug)]
468enum InlineCompletionText {
469 Move(SharedString),
470 Edit {
471 text: SharedString,
472 highlights: Vec<(Range<usize>, HighlightStyle)>,
473 },
474}
475
476enum InlineCompletion {
477 Edit(Vec<(Range<Anchor>, String)>),
478 Move(Anchor),
479}
480
481struct InlineCompletionState {
482 inlay_ids: Vec<InlayId>,
483 completion: InlineCompletion,
484 invalidation_range: Range<Anchor>,
485}
486
487enum InlineCompletionHighlight {}
488
489#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
490struct EditorActionId(usize);
491
492impl EditorActionId {
493 pub fn post_inc(&mut self) -> Self {
494 let answer = self.0;
495
496 *self = Self(answer + 1);
497
498 Self(answer)
499 }
500}
501
502// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
503// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
504
505type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
506type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
507
508#[derive(Default)]
509struct ScrollbarMarkerState {
510 scrollbar_size: Size<Pixels>,
511 dirty: bool,
512 markers: Arc<[PaintQuad]>,
513 pending_refresh: Option<Task<Result<()>>>,
514}
515
516impl ScrollbarMarkerState {
517 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
518 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
519 }
520}
521
522#[derive(Clone, Debug)]
523struct RunnableTasks {
524 templates: Vec<(TaskSourceKind, TaskTemplate)>,
525 offset: MultiBufferOffset,
526 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
527 column: u32,
528 // Values of all named captures, including those starting with '_'
529 extra_variables: HashMap<String, String>,
530 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
531 context_range: Range<BufferOffset>,
532}
533
534impl RunnableTasks {
535 fn resolve<'a>(
536 &'a self,
537 cx: &'a task::TaskContext,
538 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
539 self.templates.iter().filter_map(|(kind, template)| {
540 template
541 .resolve_task(&kind.to_id_base(), cx)
542 .map(|task| (kind.clone(), task))
543 })
544 }
545}
546
547#[derive(Clone)]
548struct ResolvedTasks {
549 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
550 position: Anchor,
551}
552#[derive(Copy, Clone, Debug)]
553struct MultiBufferOffset(usize);
554#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
555struct BufferOffset(usize);
556
557// Addons allow storing per-editor state in other crates (e.g. Vim)
558pub trait Addon: 'static {
559 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
560
561 fn to_any(&self) -> &dyn std::any::Any;
562}
563
564#[derive(Debug, Copy, Clone, PartialEq, Eq)]
565pub enum IsVimMode {
566 Yes,
567 No,
568}
569
570/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
571///
572/// See the [module level documentation](self) for more information.
573pub struct Editor {
574 focus_handle: FocusHandle,
575 last_focused_descendant: Option<WeakFocusHandle>,
576 /// The text buffer being edited
577 buffer: Model<MultiBuffer>,
578 /// Map of how text in the buffer should be displayed.
579 /// Handles soft wraps, folds, fake inlay text insertions, etc.
580 pub display_map: Model<DisplayMap>,
581 pub selections: SelectionsCollection,
582 pub scroll_manager: ScrollManager,
583 /// When inline assist editors are linked, they all render cursors because
584 /// typing enters text into each of them, even the ones that aren't focused.
585 pub(crate) show_cursor_when_unfocused: bool,
586 columnar_selection_tail: Option<Anchor>,
587 add_selections_state: Option<AddSelectionsState>,
588 select_next_state: Option<SelectNextState>,
589 select_prev_state: Option<SelectNextState>,
590 selection_history: SelectionHistory,
591 autoclose_regions: Vec<AutocloseRegion>,
592 snippet_stack: InvalidationStack<SnippetState>,
593 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
594 ime_transaction: Option<TransactionId>,
595 active_diagnostics: Option<ActiveDiagnosticGroup>,
596 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
597
598 project: Option<Model<Project>>,
599 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
600 completion_provider: Option<Box<dyn CompletionProvider>>,
601 collaboration_hub: Option<Box<dyn CollaborationHub>>,
602 blink_manager: Model<BlinkManager>,
603 show_cursor_names: bool,
604 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
605 pub show_local_selections: bool,
606 mode: EditorMode,
607 show_breadcrumbs: bool,
608 show_gutter: bool,
609 show_scrollbars: bool,
610 show_line_numbers: Option<bool>,
611 use_relative_line_numbers: Option<bool>,
612 show_git_diff_gutter: Option<bool>,
613 show_code_actions: Option<bool>,
614 show_runnables: Option<bool>,
615 show_wrap_guides: Option<bool>,
616 show_indent_guides: Option<bool>,
617 placeholder_text: Option<Arc<str>>,
618 highlight_order: usize,
619 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
620 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
621 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
622 scrollbar_marker_state: ScrollbarMarkerState,
623 active_indent_guides_state: ActiveIndentGuidesState,
624 nav_history: Option<ItemNavHistory>,
625 context_menu: RefCell<Option<CodeContextMenu>>,
626 mouse_context_menu: Option<MouseContextMenu>,
627 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
628 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
629 signature_help_state: SignatureHelpState,
630 auto_signature_help: Option<bool>,
631 find_all_references_task_sources: Vec<Anchor>,
632 next_completion_id: CompletionId,
633 available_code_actions: Option<(Location, Rc<[AvailableCodeAction]>)>,
634 code_actions_task: Option<Task<Result<()>>>,
635 document_highlights_task: Option<Task<()>>,
636 linked_editing_range_task: Option<Task<Option<()>>>,
637 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
638 pending_rename: Option<RenameState>,
639 searchable: bool,
640 cursor_shape: CursorShape,
641 current_line_highlight: Option<CurrentLineHighlight>,
642 collapse_matches: bool,
643 autoindent_mode: Option<AutoindentMode>,
644 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
645 input_enabled: bool,
646 use_modal_editing: bool,
647 read_only: bool,
648 leader_peer_id: Option<PeerId>,
649 remote_id: Option<ViewId>,
650 hover_state: HoverState,
651 gutter_hovered: bool,
652 hovered_link_state: Option<HoveredLinkState>,
653 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
654 code_action_providers: Vec<Rc<dyn CodeActionProvider>>,
655 active_inline_completion: Option<InlineCompletionState>,
656 // enable_inline_completions is a switch that Vim can use to disable
657 // inline completions based on its mode.
658 enable_inline_completions: bool,
659 show_inline_completions_override: Option<bool>,
660 inlay_hint_cache: InlayHintCache,
661 diff_map: DiffMap,
662 next_inlay_id: usize,
663 _subscriptions: Vec<Subscription>,
664 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
665 gutter_dimensions: GutterDimensions,
666 style: Option<EditorStyle>,
667 text_style_refinement: Option<TextStyleRefinement>,
668 next_editor_action_id: EditorActionId,
669 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
670 use_autoclose: bool,
671 use_auto_surround: bool,
672 auto_replace_emoji_shortcode: bool,
673 show_git_blame_gutter: bool,
674 show_git_blame_inline: bool,
675 show_git_blame_inline_delay_task: Option<Task<()>>,
676 git_blame_inline_enabled: bool,
677 serialize_dirty_buffers: bool,
678 show_selection_menu: Option<bool>,
679 blame: Option<Model<GitBlame>>,
680 blame_subscription: Option<Subscription>,
681 custom_context_menu: Option<
682 Box<
683 dyn 'static
684 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
685 >,
686 >,
687 last_bounds: Option<Bounds<Pixels>>,
688 expect_bounds_change: Option<Bounds<Pixels>>,
689 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
690 tasks_update_task: Option<Task<()>>,
691 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
692 breadcrumb_header: Option<String>,
693 focused_block: Option<FocusedBlock>,
694 next_scroll_position: NextScrollCursorCenterTopBottom,
695 addons: HashMap<TypeId, Box<dyn Addon>>,
696 registered_buffers: HashMap<BufferId, OpenLspBufferHandle>,
697 toggle_fold_multiple_buffers: Task<()>,
698 _scroll_cursor_center_top_bottom_task: Task<()>,
699}
700
701#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
702enum NextScrollCursorCenterTopBottom {
703 #[default]
704 Center,
705 Top,
706 Bottom,
707}
708
709impl NextScrollCursorCenterTopBottom {
710 fn next(&self) -> Self {
711 match self {
712 Self::Center => Self::Top,
713 Self::Top => Self::Bottom,
714 Self::Bottom => Self::Center,
715 }
716 }
717}
718
719#[derive(Clone)]
720pub struct EditorSnapshot {
721 pub mode: EditorMode,
722 show_gutter: bool,
723 show_line_numbers: Option<bool>,
724 show_git_diff_gutter: Option<bool>,
725 show_code_actions: Option<bool>,
726 show_runnables: Option<bool>,
727 git_blame_gutter_max_author_length: Option<usize>,
728 pub display_snapshot: DisplaySnapshot,
729 pub placeholder_text: Option<Arc<str>>,
730 diff_map: DiffMapSnapshot,
731 is_focused: bool,
732 scroll_anchor: ScrollAnchor,
733 ongoing_scroll: OngoingScroll,
734 current_line_highlight: CurrentLineHighlight,
735 gutter_hovered: bool,
736}
737
738const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
739
740#[derive(Default, Debug, Clone, Copy)]
741pub struct GutterDimensions {
742 pub left_padding: Pixels,
743 pub right_padding: Pixels,
744 pub width: Pixels,
745 pub margin: Pixels,
746 pub git_blame_entries_width: Option<Pixels>,
747}
748
749impl GutterDimensions {
750 /// The full width of the space taken up by the gutter.
751 pub fn full_width(&self) -> Pixels {
752 self.margin + self.width
753 }
754
755 /// The width of the space reserved for the fold indicators,
756 /// use alongside 'justify_end' and `gutter_width` to
757 /// right align content with the line numbers
758 pub fn fold_area_width(&self) -> Pixels {
759 self.margin + self.right_padding
760 }
761}
762
763#[derive(Debug)]
764pub struct RemoteSelection {
765 pub replica_id: ReplicaId,
766 pub selection: Selection<Anchor>,
767 pub cursor_shape: CursorShape,
768 pub peer_id: PeerId,
769 pub line_mode: bool,
770 pub participant_index: Option<ParticipantIndex>,
771 pub user_name: Option<SharedString>,
772}
773
774#[derive(Clone, Debug)]
775struct SelectionHistoryEntry {
776 selections: Arc<[Selection<Anchor>]>,
777 select_next_state: Option<SelectNextState>,
778 select_prev_state: Option<SelectNextState>,
779 add_selections_state: Option<AddSelectionsState>,
780}
781
782enum SelectionHistoryMode {
783 Normal,
784 Undoing,
785 Redoing,
786}
787
788#[derive(Clone, PartialEq, Eq, Hash)]
789struct HoveredCursor {
790 replica_id: u16,
791 selection_id: usize,
792}
793
794impl Default for SelectionHistoryMode {
795 fn default() -> Self {
796 Self::Normal
797 }
798}
799
800#[derive(Default)]
801struct SelectionHistory {
802 #[allow(clippy::type_complexity)]
803 selections_by_transaction:
804 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
805 mode: SelectionHistoryMode,
806 undo_stack: VecDeque<SelectionHistoryEntry>,
807 redo_stack: VecDeque<SelectionHistoryEntry>,
808}
809
810impl SelectionHistory {
811 fn insert_transaction(
812 &mut self,
813 transaction_id: TransactionId,
814 selections: Arc<[Selection<Anchor>]>,
815 ) {
816 self.selections_by_transaction
817 .insert(transaction_id, (selections, None));
818 }
819
820 #[allow(clippy::type_complexity)]
821 fn transaction(
822 &self,
823 transaction_id: TransactionId,
824 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
825 self.selections_by_transaction.get(&transaction_id)
826 }
827
828 #[allow(clippy::type_complexity)]
829 fn transaction_mut(
830 &mut self,
831 transaction_id: TransactionId,
832 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
833 self.selections_by_transaction.get_mut(&transaction_id)
834 }
835
836 fn push(&mut self, entry: SelectionHistoryEntry) {
837 if !entry.selections.is_empty() {
838 match self.mode {
839 SelectionHistoryMode::Normal => {
840 self.push_undo(entry);
841 self.redo_stack.clear();
842 }
843 SelectionHistoryMode::Undoing => self.push_redo(entry),
844 SelectionHistoryMode::Redoing => self.push_undo(entry),
845 }
846 }
847 }
848
849 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
850 if self
851 .undo_stack
852 .back()
853 .map_or(true, |e| e.selections != entry.selections)
854 {
855 self.undo_stack.push_back(entry);
856 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
857 self.undo_stack.pop_front();
858 }
859 }
860 }
861
862 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
863 if self
864 .redo_stack
865 .back()
866 .map_or(true, |e| e.selections != entry.selections)
867 {
868 self.redo_stack.push_back(entry);
869 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
870 self.redo_stack.pop_front();
871 }
872 }
873 }
874}
875
876struct RowHighlight {
877 index: usize,
878 range: Range<Anchor>,
879 color: Hsla,
880 should_autoscroll: bool,
881}
882
883#[derive(Clone, Debug)]
884struct AddSelectionsState {
885 above: bool,
886 stack: Vec<usize>,
887}
888
889#[derive(Clone)]
890struct SelectNextState {
891 query: AhoCorasick,
892 wordwise: bool,
893 done: bool,
894}
895
896impl std::fmt::Debug for SelectNextState {
897 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
898 f.debug_struct(std::any::type_name::<Self>())
899 .field("wordwise", &self.wordwise)
900 .field("done", &self.done)
901 .finish()
902 }
903}
904
905#[derive(Debug)]
906struct AutocloseRegion {
907 selection_id: usize,
908 range: Range<Anchor>,
909 pair: BracketPair,
910}
911
912#[derive(Debug)]
913struct SnippetState {
914 ranges: Vec<Vec<Range<Anchor>>>,
915 active_index: usize,
916 choices: Vec<Option<Vec<String>>>,
917}
918
919#[doc(hidden)]
920pub struct RenameState {
921 pub range: Range<Anchor>,
922 pub old_name: Arc<str>,
923 pub editor: View<Editor>,
924 block_id: CustomBlockId,
925}
926
927struct InvalidationStack<T>(Vec<T>);
928
929struct RegisteredInlineCompletionProvider {
930 provider: Arc<dyn InlineCompletionProviderHandle>,
931 _subscription: Subscription,
932}
933
934#[derive(Debug)]
935struct ActiveDiagnosticGroup {
936 primary_range: Range<Anchor>,
937 primary_message: String,
938 group_id: usize,
939 blocks: HashMap<CustomBlockId, Diagnostic>,
940 is_valid: bool,
941}
942
943#[derive(Serialize, Deserialize, Clone, Debug)]
944pub struct ClipboardSelection {
945 pub len: usize,
946 pub is_entire_line: bool,
947 pub first_line_indent: u32,
948}
949
950#[derive(Debug)]
951pub(crate) struct NavigationData {
952 cursor_anchor: Anchor,
953 cursor_position: Point,
954 scroll_anchor: ScrollAnchor,
955 scroll_top_row: u32,
956}
957
958#[derive(Debug, Clone, Copy, PartialEq, Eq)]
959pub enum GotoDefinitionKind {
960 Symbol,
961 Declaration,
962 Type,
963 Implementation,
964}
965
966#[derive(Debug, Clone)]
967enum InlayHintRefreshReason {
968 Toggle(bool),
969 SettingsChange(InlayHintSettings),
970 NewLinesShown,
971 BufferEdited(HashSet<Arc<Language>>),
972 RefreshRequested,
973 ExcerptsRemoved(Vec<ExcerptId>),
974}
975
976impl InlayHintRefreshReason {
977 fn description(&self) -> &'static str {
978 match self {
979 Self::Toggle(_) => "toggle",
980 Self::SettingsChange(_) => "settings change",
981 Self::NewLinesShown => "new lines shown",
982 Self::BufferEdited(_) => "buffer edited",
983 Self::RefreshRequested => "refresh requested",
984 Self::ExcerptsRemoved(_) => "excerpts removed",
985 }
986 }
987}
988
989pub(crate) struct FocusedBlock {
990 id: BlockId,
991 focus_handle: WeakFocusHandle,
992}
993
994#[derive(Clone)]
995enum JumpData {
996 MultiBufferRow {
997 row: MultiBufferRow,
998 line_offset_from_top: u32,
999 },
1000 MultiBufferPoint {
1001 excerpt_id: ExcerptId,
1002 position: Point,
1003 anchor: text::Anchor,
1004 line_offset_from_top: u32,
1005 },
1006}
1007
1008impl Editor {
1009 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1010 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1011 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1012 Self::new(
1013 EditorMode::SingleLine { auto_width: false },
1014 buffer,
1015 None,
1016 false,
1017 cx,
1018 )
1019 }
1020
1021 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1022 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1023 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1024 Self::new(EditorMode::Full, buffer, None, false, cx)
1025 }
1026
1027 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1028 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1029 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1030 Self::new(
1031 EditorMode::SingleLine { auto_width: true },
1032 buffer,
1033 None,
1034 false,
1035 cx,
1036 )
1037 }
1038
1039 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1040 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1041 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1042 Self::new(
1043 EditorMode::AutoHeight { max_lines },
1044 buffer,
1045 None,
1046 false,
1047 cx,
1048 )
1049 }
1050
1051 pub fn for_buffer(
1052 buffer: Model<Buffer>,
1053 project: Option<Model<Project>>,
1054 cx: &mut ViewContext<Self>,
1055 ) -> Self {
1056 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1057 Self::new(EditorMode::Full, buffer, project, false, cx)
1058 }
1059
1060 pub fn for_multibuffer(
1061 buffer: Model<MultiBuffer>,
1062 project: Option<Model<Project>>,
1063 show_excerpt_controls: bool,
1064 cx: &mut ViewContext<Self>,
1065 ) -> Self {
1066 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1067 }
1068
1069 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1070 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1071 let mut clone = Self::new(
1072 self.mode,
1073 self.buffer.clone(),
1074 self.project.clone(),
1075 show_excerpt_controls,
1076 cx,
1077 );
1078 self.display_map.update(cx, |display_map, cx| {
1079 let snapshot = display_map.snapshot(cx);
1080 clone.display_map.update(cx, |display_map, cx| {
1081 display_map.set_state(&snapshot, cx);
1082 });
1083 });
1084 clone.selections.clone_state(&self.selections);
1085 clone.scroll_manager.clone_state(&self.scroll_manager);
1086 clone.searchable = self.searchable;
1087 clone
1088 }
1089
1090 pub fn new(
1091 mode: EditorMode,
1092 buffer: Model<MultiBuffer>,
1093 project: Option<Model<Project>>,
1094 show_excerpt_controls: bool,
1095 cx: &mut ViewContext<Self>,
1096 ) -> Self {
1097 let style = cx.text_style();
1098 let font_size = style.font_size.to_pixels(cx.rem_size());
1099 let editor = cx.view().downgrade();
1100 let fold_placeholder = FoldPlaceholder {
1101 constrain_width: true,
1102 render: Arc::new(move |fold_id, fold_range, cx| {
1103 let editor = editor.clone();
1104 div()
1105 .id(fold_id)
1106 .bg(cx.theme().colors().ghost_element_background)
1107 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1108 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1109 .rounded_sm()
1110 .size_full()
1111 .cursor_pointer()
1112 .child("⋯")
1113 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1114 .on_click(move |_, cx| {
1115 editor
1116 .update(cx, |editor, cx| {
1117 editor.unfold_ranges(
1118 &[fold_range.start..fold_range.end],
1119 true,
1120 false,
1121 cx,
1122 );
1123 cx.stop_propagation();
1124 })
1125 .ok();
1126 })
1127 .into_any()
1128 }),
1129 merge_adjacent: true,
1130 ..Default::default()
1131 };
1132 let display_map = cx.new_model(|cx| {
1133 DisplayMap::new(
1134 buffer.clone(),
1135 style.font(),
1136 font_size,
1137 None,
1138 show_excerpt_controls,
1139 FILE_HEADER_HEIGHT,
1140 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1141 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1142 fold_placeholder,
1143 cx,
1144 )
1145 });
1146
1147 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1148
1149 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1150
1151 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1152 .then(|| language_settings::SoftWrap::None);
1153
1154 let mut project_subscriptions = Vec::new();
1155 if mode == EditorMode::Full {
1156 if let Some(project) = project.as_ref() {
1157 if buffer.read(cx).is_singleton() {
1158 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1159 cx.emit(EditorEvent::TitleChanged);
1160 }));
1161 }
1162 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1163 if let project::Event::RefreshInlayHints = event {
1164 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1165 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1166 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1167 let focus_handle = editor.focus_handle(cx);
1168 if focus_handle.is_focused(cx) {
1169 let snapshot = buffer.read(cx).snapshot();
1170 for (range, snippet) in snippet_edits {
1171 let editor_range =
1172 language::range_from_lsp(*range).to_offset(&snapshot);
1173 editor
1174 .insert_snippet(&[editor_range], snippet.clone(), cx)
1175 .ok();
1176 }
1177 }
1178 }
1179 }
1180 }));
1181 if let Some(task_inventory) = project
1182 .read(cx)
1183 .task_store()
1184 .read(cx)
1185 .task_inventory()
1186 .cloned()
1187 {
1188 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1189 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1190 }));
1191 }
1192 }
1193 }
1194
1195 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1196
1197 let inlay_hint_settings =
1198 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1199 let focus_handle = cx.focus_handle();
1200 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1201 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1202 .detach();
1203 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1204 .detach();
1205 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1206
1207 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1208 Some(false)
1209 } else {
1210 None
1211 };
1212
1213 let mut code_action_providers = Vec::new();
1214 if let Some(project) = project.clone() {
1215 get_unstaged_changes_for_buffers(&project, buffer.read(cx).all_buffers(), cx);
1216 code_action_providers.push(Rc::new(project) as Rc<_>);
1217 }
1218
1219 let mut this = Self {
1220 focus_handle,
1221 show_cursor_when_unfocused: false,
1222 last_focused_descendant: None,
1223 buffer: buffer.clone(),
1224 display_map: display_map.clone(),
1225 selections,
1226 scroll_manager: ScrollManager::new(cx),
1227 columnar_selection_tail: None,
1228 add_selections_state: None,
1229 select_next_state: None,
1230 select_prev_state: None,
1231 selection_history: Default::default(),
1232 autoclose_regions: Default::default(),
1233 snippet_stack: Default::default(),
1234 select_larger_syntax_node_stack: Vec::new(),
1235 ime_transaction: Default::default(),
1236 active_diagnostics: None,
1237 soft_wrap_mode_override,
1238 completion_provider: project.clone().map(|project| Box::new(project) as _),
1239 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1240 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1241 project,
1242 blink_manager: blink_manager.clone(),
1243 show_local_selections: true,
1244 show_scrollbars: true,
1245 mode,
1246 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1247 show_gutter: mode == EditorMode::Full,
1248 show_line_numbers: None,
1249 use_relative_line_numbers: None,
1250 show_git_diff_gutter: None,
1251 show_code_actions: None,
1252 show_runnables: None,
1253 show_wrap_guides: None,
1254 show_indent_guides,
1255 placeholder_text: None,
1256 highlight_order: 0,
1257 highlighted_rows: HashMap::default(),
1258 background_highlights: Default::default(),
1259 gutter_highlights: TreeMap::default(),
1260 scrollbar_marker_state: ScrollbarMarkerState::default(),
1261 active_indent_guides_state: ActiveIndentGuidesState::default(),
1262 nav_history: None,
1263 context_menu: RefCell::new(None),
1264 mouse_context_menu: None,
1265 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1266 completion_tasks: Default::default(),
1267 signature_help_state: SignatureHelpState::default(),
1268 auto_signature_help: None,
1269 find_all_references_task_sources: Vec::new(),
1270 next_completion_id: 0,
1271 next_inlay_id: 0,
1272 code_action_providers,
1273 available_code_actions: Default::default(),
1274 code_actions_task: Default::default(),
1275 document_highlights_task: Default::default(),
1276 linked_editing_range_task: Default::default(),
1277 pending_rename: Default::default(),
1278 searchable: true,
1279 cursor_shape: EditorSettings::get_global(cx)
1280 .cursor_shape
1281 .unwrap_or_default(),
1282 current_line_highlight: None,
1283 autoindent_mode: Some(AutoindentMode::EachLine),
1284 collapse_matches: false,
1285 workspace: None,
1286 input_enabled: true,
1287 use_modal_editing: mode == EditorMode::Full,
1288 read_only: false,
1289 use_autoclose: true,
1290 use_auto_surround: true,
1291 auto_replace_emoji_shortcode: false,
1292 leader_peer_id: None,
1293 remote_id: None,
1294 hover_state: Default::default(),
1295 hovered_link_state: Default::default(),
1296 inline_completion_provider: None,
1297 active_inline_completion: None,
1298 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1299 diff_map: DiffMap::default(),
1300 gutter_hovered: false,
1301 pixel_position_of_newest_cursor: None,
1302 last_bounds: None,
1303 expect_bounds_change: None,
1304 gutter_dimensions: GutterDimensions::default(),
1305 style: None,
1306 show_cursor_names: false,
1307 hovered_cursors: Default::default(),
1308 next_editor_action_id: EditorActionId::default(),
1309 editor_actions: Rc::default(),
1310 show_inline_completions_override: None,
1311 enable_inline_completions: true,
1312 custom_context_menu: None,
1313 show_git_blame_gutter: false,
1314 show_git_blame_inline: false,
1315 show_selection_menu: None,
1316 show_git_blame_inline_delay_task: None,
1317 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1318 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1319 .session
1320 .restore_unsaved_buffers,
1321 blame: None,
1322 blame_subscription: None,
1323 tasks: Default::default(),
1324 _subscriptions: vec![
1325 cx.observe(&buffer, Self::on_buffer_changed),
1326 cx.subscribe(&buffer, Self::on_buffer_event),
1327 cx.observe(&display_map, Self::on_display_map_changed),
1328 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1329 cx.observe_global::<SettingsStore>(Self::settings_changed),
1330 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1331 cx.observe_window_activation(|editor, cx| {
1332 let active = cx.is_window_active();
1333 editor.blink_manager.update(cx, |blink_manager, cx| {
1334 if active {
1335 blink_manager.enable(cx);
1336 } else {
1337 blink_manager.disable(cx);
1338 }
1339 });
1340 }),
1341 ],
1342 tasks_update_task: None,
1343 linked_edit_ranges: Default::default(),
1344 previous_search_ranges: None,
1345 breadcrumb_header: None,
1346 focused_block: None,
1347 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1348 addons: HashMap::default(),
1349 registered_buffers: HashMap::default(),
1350 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1351 toggle_fold_multiple_buffers: Task::ready(()),
1352 text_style_refinement: None,
1353 };
1354 this.tasks_update_task = Some(this.refresh_runnables(cx));
1355 this._subscriptions.extend(project_subscriptions);
1356
1357 this.end_selection(cx);
1358 this.scroll_manager.show_scrollbar(cx);
1359
1360 if mode == EditorMode::Full {
1361 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1362 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1363
1364 if this.git_blame_inline_enabled {
1365 this.git_blame_inline_enabled = true;
1366 this.start_git_blame_inline(false, cx);
1367 }
1368
1369 if let Some(buffer) = buffer.read(cx).as_singleton() {
1370 if let Some(project) = this.project.as_ref() {
1371 let lsp_store = project.read(cx).lsp_store();
1372 let handle = lsp_store.update(cx, |lsp_store, cx| {
1373 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1374 });
1375 this.registered_buffers
1376 .insert(buffer.read(cx).remote_id(), handle);
1377 }
1378 }
1379 }
1380
1381 this.report_editor_event("Editor Opened", None, cx);
1382 this
1383 }
1384
1385 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1386 self.mouse_context_menu
1387 .as_ref()
1388 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1389 }
1390
1391 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1392 let mut key_context = KeyContext::new_with_defaults();
1393 key_context.add("Editor");
1394 let mode = match self.mode {
1395 EditorMode::SingleLine { .. } => "single_line",
1396 EditorMode::AutoHeight { .. } => "auto_height",
1397 EditorMode::Full => "full",
1398 };
1399
1400 if EditorSettings::jupyter_enabled(cx) {
1401 key_context.add("jupyter");
1402 }
1403
1404 key_context.set("mode", mode);
1405 if self.pending_rename.is_some() {
1406 key_context.add("renaming");
1407 }
1408 match self.context_menu.borrow().as_ref() {
1409 Some(CodeContextMenu::Completions(_)) => {
1410 key_context.add("menu");
1411 key_context.add("showing_completions")
1412 }
1413 Some(CodeContextMenu::CodeActions(_)) => {
1414 key_context.add("menu");
1415 key_context.add("showing_code_actions")
1416 }
1417 None => {}
1418 }
1419
1420 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1421 if !self.focus_handle(cx).contains_focused(cx)
1422 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
1423 {
1424 for addon in self.addons.values() {
1425 addon.extend_key_context(&mut key_context, cx)
1426 }
1427 }
1428
1429 if let Some(extension) = self
1430 .buffer
1431 .read(cx)
1432 .as_singleton()
1433 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1434 {
1435 key_context.set("extension", extension.to_string());
1436 }
1437
1438 if self.has_active_inline_completion() {
1439 key_context.add("copilot_suggestion");
1440 key_context.add("inline_completion");
1441 }
1442
1443 if !self
1444 .selections
1445 .disjoint
1446 .iter()
1447 .all(|selection| selection.start == selection.end)
1448 {
1449 key_context.add("selection");
1450 }
1451
1452 key_context
1453 }
1454
1455 pub fn new_file(
1456 workspace: &mut Workspace,
1457 _: &workspace::NewFile,
1458 cx: &mut ViewContext<Workspace>,
1459 ) {
1460 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1461 "Failed to create buffer",
1462 cx,
1463 |e, _| match e.error_code() {
1464 ErrorCode::RemoteUpgradeRequired => Some(format!(
1465 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1466 e.error_tag("required").unwrap_or("the latest version")
1467 )),
1468 _ => None,
1469 },
1470 );
1471 }
1472
1473 pub fn new_in_workspace(
1474 workspace: &mut Workspace,
1475 cx: &mut ViewContext<Workspace>,
1476 ) -> Task<Result<View<Editor>>> {
1477 let project = workspace.project().clone();
1478 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1479
1480 cx.spawn(|workspace, mut cx| async move {
1481 let buffer = create.await?;
1482 workspace.update(&mut cx, |workspace, cx| {
1483 let editor =
1484 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
1485 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
1486 editor
1487 })
1488 })
1489 }
1490
1491 fn new_file_vertical(
1492 workspace: &mut Workspace,
1493 _: &workspace::NewFileSplitVertical,
1494 cx: &mut ViewContext<Workspace>,
1495 ) {
1496 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
1497 }
1498
1499 fn new_file_horizontal(
1500 workspace: &mut Workspace,
1501 _: &workspace::NewFileSplitHorizontal,
1502 cx: &mut ViewContext<Workspace>,
1503 ) {
1504 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
1505 }
1506
1507 fn new_file_in_direction(
1508 workspace: &mut Workspace,
1509 direction: SplitDirection,
1510 cx: &mut ViewContext<Workspace>,
1511 ) {
1512 let project = workspace.project().clone();
1513 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1514
1515 cx.spawn(|workspace, mut cx| async move {
1516 let buffer = create.await?;
1517 workspace.update(&mut cx, move |workspace, cx| {
1518 workspace.split_item(
1519 direction,
1520 Box::new(
1521 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1522 ),
1523 cx,
1524 )
1525 })?;
1526 anyhow::Ok(())
1527 })
1528 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1529 ErrorCode::RemoteUpgradeRequired => Some(format!(
1530 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1531 e.error_tag("required").unwrap_or("the latest version")
1532 )),
1533 _ => None,
1534 });
1535 }
1536
1537 pub fn leader_peer_id(&self) -> Option<PeerId> {
1538 self.leader_peer_id
1539 }
1540
1541 pub fn buffer(&self) -> &Model<MultiBuffer> {
1542 &self.buffer
1543 }
1544
1545 pub fn workspace(&self) -> Option<View<Workspace>> {
1546 self.workspace.as_ref()?.0.upgrade()
1547 }
1548
1549 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1550 self.buffer().read(cx).title(cx)
1551 }
1552
1553 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1554 let git_blame_gutter_max_author_length = self
1555 .render_git_blame_gutter(cx)
1556 .then(|| {
1557 if let Some(blame) = self.blame.as_ref() {
1558 let max_author_length =
1559 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1560 Some(max_author_length)
1561 } else {
1562 None
1563 }
1564 })
1565 .flatten();
1566
1567 EditorSnapshot {
1568 mode: self.mode,
1569 show_gutter: self.show_gutter,
1570 show_line_numbers: self.show_line_numbers,
1571 show_git_diff_gutter: self.show_git_diff_gutter,
1572 show_code_actions: self.show_code_actions,
1573 show_runnables: self.show_runnables,
1574 git_blame_gutter_max_author_length,
1575 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1576 scroll_anchor: self.scroll_manager.anchor(),
1577 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1578 placeholder_text: self.placeholder_text.clone(),
1579 diff_map: self.diff_map.snapshot(),
1580 is_focused: self.focus_handle.is_focused(cx),
1581 current_line_highlight: self
1582 .current_line_highlight
1583 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1584 gutter_hovered: self.gutter_hovered,
1585 }
1586 }
1587
1588 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1589 self.buffer.read(cx).language_at(point, cx)
1590 }
1591
1592 pub fn file_at<T: ToOffset>(
1593 &self,
1594 point: T,
1595 cx: &AppContext,
1596 ) -> Option<Arc<dyn language::File>> {
1597 self.buffer.read(cx).read(cx).file_at(point).cloned()
1598 }
1599
1600 pub fn active_excerpt(
1601 &self,
1602 cx: &AppContext,
1603 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1604 self.buffer
1605 .read(cx)
1606 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1607 }
1608
1609 pub fn mode(&self) -> EditorMode {
1610 self.mode
1611 }
1612
1613 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1614 self.collaboration_hub.as_deref()
1615 }
1616
1617 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1618 self.collaboration_hub = Some(hub);
1619 }
1620
1621 pub fn set_custom_context_menu(
1622 &mut self,
1623 f: impl 'static
1624 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1625 ) {
1626 self.custom_context_menu = Some(Box::new(f))
1627 }
1628
1629 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1630 self.completion_provider = provider;
1631 }
1632
1633 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1634 self.semantics_provider.clone()
1635 }
1636
1637 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1638 self.semantics_provider = provider;
1639 }
1640
1641 pub fn set_inline_completion_provider<T>(
1642 &mut self,
1643 provider: Option<Model<T>>,
1644 cx: &mut ViewContext<Self>,
1645 ) where
1646 T: InlineCompletionProvider,
1647 {
1648 self.inline_completion_provider =
1649 provider.map(|provider| RegisteredInlineCompletionProvider {
1650 _subscription: cx.observe(&provider, |this, _, cx| {
1651 if this.focus_handle.is_focused(cx) {
1652 this.update_visible_inline_completion(cx);
1653 }
1654 }),
1655 provider: Arc::new(provider),
1656 });
1657 self.refresh_inline_completion(false, false, cx);
1658 }
1659
1660 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
1661 self.placeholder_text.as_deref()
1662 }
1663
1664 pub fn set_placeholder_text(
1665 &mut self,
1666 placeholder_text: impl Into<Arc<str>>,
1667 cx: &mut ViewContext<Self>,
1668 ) {
1669 let placeholder_text = Some(placeholder_text.into());
1670 if self.placeholder_text != placeholder_text {
1671 self.placeholder_text = placeholder_text;
1672 cx.notify();
1673 }
1674 }
1675
1676 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1677 self.cursor_shape = cursor_shape;
1678
1679 // Disrupt blink for immediate user feedback that the cursor shape has changed
1680 self.blink_manager.update(cx, BlinkManager::show_cursor);
1681
1682 cx.notify();
1683 }
1684
1685 pub fn set_current_line_highlight(
1686 &mut self,
1687 current_line_highlight: Option<CurrentLineHighlight>,
1688 ) {
1689 self.current_line_highlight = current_line_highlight;
1690 }
1691
1692 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1693 self.collapse_matches = collapse_matches;
1694 }
1695
1696 pub fn register_buffers_with_language_servers(&mut self, cx: &mut ViewContext<Self>) {
1697 let buffers = self.buffer.read(cx).all_buffers();
1698 let Some(lsp_store) = self.lsp_store(cx) else {
1699 return;
1700 };
1701 lsp_store.update(cx, |lsp_store, cx| {
1702 for buffer in buffers {
1703 self.registered_buffers
1704 .entry(buffer.read(cx).remote_id())
1705 .or_insert_with(|| {
1706 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1707 });
1708 }
1709 })
1710 }
1711
1712 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1713 if self.collapse_matches {
1714 return range.start..range.start;
1715 }
1716 range.clone()
1717 }
1718
1719 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1720 if self.display_map.read(cx).clip_at_line_ends != clip {
1721 self.display_map
1722 .update(cx, |map, _| map.clip_at_line_ends = clip);
1723 }
1724 }
1725
1726 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1727 self.input_enabled = input_enabled;
1728 }
1729
1730 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
1731 self.enable_inline_completions = enabled;
1732 }
1733
1734 pub fn set_autoindent(&mut self, autoindent: bool) {
1735 if autoindent {
1736 self.autoindent_mode = Some(AutoindentMode::EachLine);
1737 } else {
1738 self.autoindent_mode = None;
1739 }
1740 }
1741
1742 pub fn read_only(&self, cx: &AppContext) -> bool {
1743 self.read_only || self.buffer.read(cx).read_only()
1744 }
1745
1746 pub fn set_read_only(&mut self, read_only: bool) {
1747 self.read_only = read_only;
1748 }
1749
1750 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1751 self.use_autoclose = autoclose;
1752 }
1753
1754 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1755 self.use_auto_surround = auto_surround;
1756 }
1757
1758 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1759 self.auto_replace_emoji_shortcode = auto_replace;
1760 }
1761
1762 pub fn toggle_inline_completions(
1763 &mut self,
1764 _: &ToggleInlineCompletions,
1765 cx: &mut ViewContext<Self>,
1766 ) {
1767 if self.show_inline_completions_override.is_some() {
1768 self.set_show_inline_completions(None, cx);
1769 } else {
1770 let cursor = self.selections.newest_anchor().head();
1771 if let Some((buffer, cursor_buffer_position)) =
1772 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1773 {
1774 let show_inline_completions =
1775 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
1776 self.set_show_inline_completions(Some(show_inline_completions), cx);
1777 }
1778 }
1779 }
1780
1781 pub fn set_show_inline_completions(
1782 &mut self,
1783 show_inline_completions: Option<bool>,
1784 cx: &mut ViewContext<Self>,
1785 ) {
1786 self.show_inline_completions_override = show_inline_completions;
1787 self.refresh_inline_completion(false, true, cx);
1788 }
1789
1790 fn should_show_inline_completions(
1791 &self,
1792 buffer: &Model<Buffer>,
1793 buffer_position: language::Anchor,
1794 cx: &AppContext,
1795 ) -> bool {
1796 if !self.snippet_stack.is_empty() {
1797 return false;
1798 }
1799
1800 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1801 return false;
1802 }
1803
1804 if let Some(provider) = self.inline_completion_provider() {
1805 if let Some(show_inline_completions) = self.show_inline_completions_override {
1806 show_inline_completions
1807 } else {
1808 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1809 }
1810 } else {
1811 false
1812 }
1813 }
1814
1815 fn inline_completions_disabled_in_scope(
1816 &self,
1817 buffer: &Model<Buffer>,
1818 buffer_position: language::Anchor,
1819 cx: &AppContext,
1820 ) -> bool {
1821 let snapshot = buffer.read(cx).snapshot();
1822 let settings = snapshot.settings_at(buffer_position, cx);
1823
1824 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1825 return false;
1826 };
1827
1828 scope.override_name().map_or(false, |scope_name| {
1829 settings
1830 .inline_completions_disabled_in
1831 .iter()
1832 .any(|s| s == scope_name)
1833 })
1834 }
1835
1836 pub fn set_use_modal_editing(&mut self, to: bool) {
1837 self.use_modal_editing = to;
1838 }
1839
1840 pub fn use_modal_editing(&self) -> bool {
1841 self.use_modal_editing
1842 }
1843
1844 fn selections_did_change(
1845 &mut self,
1846 local: bool,
1847 old_cursor_position: &Anchor,
1848 show_completions: bool,
1849 cx: &mut ViewContext<Self>,
1850 ) {
1851 cx.invalidate_character_coordinates();
1852
1853 // Copy selections to primary selection buffer
1854 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1855 if local {
1856 let selections = self.selections.all::<usize>(cx);
1857 let buffer_handle = self.buffer.read(cx).read(cx);
1858
1859 let mut text = String::new();
1860 for (index, selection) in selections.iter().enumerate() {
1861 let text_for_selection = buffer_handle
1862 .text_for_range(selection.start..selection.end)
1863 .collect::<String>();
1864
1865 text.push_str(&text_for_selection);
1866 if index != selections.len() - 1 {
1867 text.push('\n');
1868 }
1869 }
1870
1871 if !text.is_empty() {
1872 cx.write_to_primary(ClipboardItem::new_string(text));
1873 }
1874 }
1875
1876 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1877 self.buffer.update(cx, |buffer, cx| {
1878 buffer.set_active_selections(
1879 &self.selections.disjoint_anchors(),
1880 self.selections.line_mode,
1881 self.cursor_shape,
1882 cx,
1883 )
1884 });
1885 }
1886 let display_map = self
1887 .display_map
1888 .update(cx, |display_map, cx| display_map.snapshot(cx));
1889 let buffer = &display_map.buffer_snapshot;
1890 self.add_selections_state = None;
1891 self.select_next_state = None;
1892 self.select_prev_state = None;
1893 self.select_larger_syntax_node_stack.clear();
1894 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1895 self.snippet_stack
1896 .invalidate(&self.selections.disjoint_anchors(), buffer);
1897 self.take_rename(false, cx);
1898
1899 let new_cursor_position = self.selections.newest_anchor().head();
1900
1901 self.push_to_nav_history(
1902 *old_cursor_position,
1903 Some(new_cursor_position.to_point(buffer)),
1904 cx,
1905 );
1906
1907 if local {
1908 let new_cursor_position = self.selections.newest_anchor().head();
1909 let mut context_menu = self.context_menu.borrow_mut();
1910 let completion_menu = match context_menu.as_ref() {
1911 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1912 _ => {
1913 *context_menu = None;
1914 None
1915 }
1916 };
1917
1918 if let Some(completion_menu) = completion_menu {
1919 let cursor_position = new_cursor_position.to_offset(buffer);
1920 let (word_range, kind) =
1921 buffer.surrounding_word(completion_menu.initial_position, true);
1922 if kind == Some(CharKind::Word)
1923 && word_range.to_inclusive().contains(&cursor_position)
1924 {
1925 let mut completion_menu = completion_menu.clone();
1926 drop(context_menu);
1927
1928 let query = Self::completion_query(buffer, cursor_position);
1929 cx.spawn(move |this, mut cx| async move {
1930 completion_menu
1931 .filter(query.as_deref(), cx.background_executor().clone())
1932 .await;
1933
1934 this.update(&mut cx, |this, cx| {
1935 let mut context_menu = this.context_menu.borrow_mut();
1936 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1937 else {
1938 return;
1939 };
1940
1941 if menu.id > completion_menu.id {
1942 return;
1943 }
1944
1945 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1946 drop(context_menu);
1947 cx.notify();
1948 })
1949 })
1950 .detach();
1951
1952 if show_completions {
1953 self.show_completions(&ShowCompletions { trigger: None }, cx);
1954 }
1955 } else {
1956 drop(context_menu);
1957 self.hide_context_menu(cx);
1958 }
1959 } else {
1960 drop(context_menu);
1961 }
1962
1963 hide_hover(self, cx);
1964
1965 if old_cursor_position.to_display_point(&display_map).row()
1966 != new_cursor_position.to_display_point(&display_map).row()
1967 {
1968 self.available_code_actions.take();
1969 }
1970 self.refresh_code_actions(cx);
1971 self.refresh_document_highlights(cx);
1972 refresh_matching_bracket_highlights(self, cx);
1973 self.update_visible_inline_completion(cx);
1974 linked_editing_ranges::refresh_linked_ranges(self, cx);
1975 if self.git_blame_inline_enabled {
1976 self.start_inline_blame_timer(cx);
1977 }
1978 }
1979
1980 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1981 cx.emit(EditorEvent::SelectionsChanged { local });
1982
1983 if self.selections.disjoint_anchors().len() == 1 {
1984 cx.emit(SearchEvent::ActiveMatchChanged)
1985 }
1986 cx.notify();
1987 }
1988
1989 pub fn change_selections<R>(
1990 &mut self,
1991 autoscroll: Option<Autoscroll>,
1992 cx: &mut ViewContext<Self>,
1993 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1994 ) -> R {
1995 self.change_selections_inner(autoscroll, true, cx, change)
1996 }
1997
1998 pub fn change_selections_inner<R>(
1999 &mut self,
2000 autoscroll: Option<Autoscroll>,
2001 request_completions: bool,
2002 cx: &mut ViewContext<Self>,
2003 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2004 ) -> R {
2005 let old_cursor_position = self.selections.newest_anchor().head();
2006 self.push_to_selection_history();
2007
2008 let (changed, result) = self.selections.change_with(cx, change);
2009
2010 if changed {
2011 if let Some(autoscroll) = autoscroll {
2012 self.request_autoscroll(autoscroll, cx);
2013 }
2014 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2015
2016 if self.should_open_signature_help_automatically(
2017 &old_cursor_position,
2018 self.signature_help_state.backspace_pressed(),
2019 cx,
2020 ) {
2021 self.show_signature_help(&ShowSignatureHelp, cx);
2022 }
2023 self.signature_help_state.set_backspace_pressed(false);
2024 }
2025
2026 result
2027 }
2028
2029 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2030 where
2031 I: IntoIterator<Item = (Range<S>, T)>,
2032 S: ToOffset,
2033 T: Into<Arc<str>>,
2034 {
2035 if self.read_only(cx) {
2036 return;
2037 }
2038
2039 self.buffer
2040 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2041 }
2042
2043 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2044 where
2045 I: IntoIterator<Item = (Range<S>, T)>,
2046 S: ToOffset,
2047 T: Into<Arc<str>>,
2048 {
2049 if self.read_only(cx) {
2050 return;
2051 }
2052
2053 self.buffer.update(cx, |buffer, cx| {
2054 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2055 });
2056 }
2057
2058 pub fn edit_with_block_indent<I, S, T>(
2059 &mut self,
2060 edits: I,
2061 original_indent_columns: Vec<u32>,
2062 cx: &mut ViewContext<Self>,
2063 ) where
2064 I: IntoIterator<Item = (Range<S>, T)>,
2065 S: ToOffset,
2066 T: Into<Arc<str>>,
2067 {
2068 if self.read_only(cx) {
2069 return;
2070 }
2071
2072 self.buffer.update(cx, |buffer, cx| {
2073 buffer.edit(
2074 edits,
2075 Some(AutoindentMode::Block {
2076 original_indent_columns,
2077 }),
2078 cx,
2079 )
2080 });
2081 }
2082
2083 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2084 self.hide_context_menu(cx);
2085
2086 match phase {
2087 SelectPhase::Begin {
2088 position,
2089 add,
2090 click_count,
2091 } => self.begin_selection(position, add, click_count, cx),
2092 SelectPhase::BeginColumnar {
2093 position,
2094 goal_column,
2095 reset,
2096 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2097 SelectPhase::Extend {
2098 position,
2099 click_count,
2100 } => self.extend_selection(position, click_count, cx),
2101 SelectPhase::Update {
2102 position,
2103 goal_column,
2104 scroll_delta,
2105 } => self.update_selection(position, goal_column, scroll_delta, cx),
2106 SelectPhase::End => self.end_selection(cx),
2107 }
2108 }
2109
2110 fn extend_selection(
2111 &mut self,
2112 position: DisplayPoint,
2113 click_count: usize,
2114 cx: &mut ViewContext<Self>,
2115 ) {
2116 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2117 let tail = self.selections.newest::<usize>(cx).tail();
2118 self.begin_selection(position, false, click_count, cx);
2119
2120 let position = position.to_offset(&display_map, Bias::Left);
2121 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2122
2123 let mut pending_selection = self
2124 .selections
2125 .pending_anchor()
2126 .expect("extend_selection not called with pending selection");
2127 if position >= tail {
2128 pending_selection.start = tail_anchor;
2129 } else {
2130 pending_selection.end = tail_anchor;
2131 pending_selection.reversed = true;
2132 }
2133
2134 let mut pending_mode = self.selections.pending_mode().unwrap();
2135 match &mut pending_mode {
2136 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2137 _ => {}
2138 }
2139
2140 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2141 s.set_pending(pending_selection, pending_mode)
2142 });
2143 }
2144
2145 fn begin_selection(
2146 &mut self,
2147 position: DisplayPoint,
2148 add: bool,
2149 click_count: usize,
2150 cx: &mut ViewContext<Self>,
2151 ) {
2152 if !self.focus_handle.is_focused(cx) {
2153 self.last_focused_descendant = None;
2154 cx.focus(&self.focus_handle);
2155 }
2156
2157 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2158 let buffer = &display_map.buffer_snapshot;
2159 let newest_selection = self.selections.newest_anchor().clone();
2160 let position = display_map.clip_point(position, Bias::Left);
2161
2162 let start;
2163 let end;
2164 let mode;
2165 let mut auto_scroll;
2166 match click_count {
2167 1 => {
2168 start = buffer.anchor_before(position.to_point(&display_map));
2169 end = start;
2170 mode = SelectMode::Character;
2171 auto_scroll = true;
2172 }
2173 2 => {
2174 let range = movement::surrounding_word(&display_map, position);
2175 start = buffer.anchor_before(range.start.to_point(&display_map));
2176 end = buffer.anchor_before(range.end.to_point(&display_map));
2177 mode = SelectMode::Word(start..end);
2178 auto_scroll = true;
2179 }
2180 3 => {
2181 let position = display_map
2182 .clip_point(position, Bias::Left)
2183 .to_point(&display_map);
2184 let line_start = display_map.prev_line_boundary(position).0;
2185 let next_line_start = buffer.clip_point(
2186 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2187 Bias::Left,
2188 );
2189 start = buffer.anchor_before(line_start);
2190 end = buffer.anchor_before(next_line_start);
2191 mode = SelectMode::Line(start..end);
2192 auto_scroll = true;
2193 }
2194 _ => {
2195 start = buffer.anchor_before(0);
2196 end = buffer.anchor_before(buffer.len());
2197 mode = SelectMode::All;
2198 auto_scroll = false;
2199 }
2200 }
2201 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2202
2203 let point_to_delete: Option<usize> = {
2204 let selected_points: Vec<Selection<Point>> =
2205 self.selections.disjoint_in_range(start..end, cx);
2206
2207 if !add || click_count > 1 {
2208 None
2209 } else if !selected_points.is_empty() {
2210 Some(selected_points[0].id)
2211 } else {
2212 let clicked_point_already_selected =
2213 self.selections.disjoint.iter().find(|selection| {
2214 selection.start.to_point(buffer) == start.to_point(buffer)
2215 || selection.end.to_point(buffer) == end.to_point(buffer)
2216 });
2217
2218 clicked_point_already_selected.map(|selection| selection.id)
2219 }
2220 };
2221
2222 let selections_count = self.selections.count();
2223
2224 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2225 if let Some(point_to_delete) = point_to_delete {
2226 s.delete(point_to_delete);
2227
2228 if selections_count == 1 {
2229 s.set_pending_anchor_range(start..end, mode);
2230 }
2231 } else {
2232 if !add {
2233 s.clear_disjoint();
2234 } else if click_count > 1 {
2235 s.delete(newest_selection.id)
2236 }
2237
2238 s.set_pending_anchor_range(start..end, mode);
2239 }
2240 });
2241 }
2242
2243 fn begin_columnar_selection(
2244 &mut self,
2245 position: DisplayPoint,
2246 goal_column: u32,
2247 reset: bool,
2248 cx: &mut ViewContext<Self>,
2249 ) {
2250 if !self.focus_handle.is_focused(cx) {
2251 self.last_focused_descendant = None;
2252 cx.focus(&self.focus_handle);
2253 }
2254
2255 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2256
2257 if reset {
2258 let pointer_position = display_map
2259 .buffer_snapshot
2260 .anchor_before(position.to_point(&display_map));
2261
2262 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2263 s.clear_disjoint();
2264 s.set_pending_anchor_range(
2265 pointer_position..pointer_position,
2266 SelectMode::Character,
2267 );
2268 });
2269 }
2270
2271 let tail = self.selections.newest::<Point>(cx).tail();
2272 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2273
2274 if !reset {
2275 self.select_columns(
2276 tail.to_display_point(&display_map),
2277 position,
2278 goal_column,
2279 &display_map,
2280 cx,
2281 );
2282 }
2283 }
2284
2285 fn update_selection(
2286 &mut self,
2287 position: DisplayPoint,
2288 goal_column: u32,
2289 scroll_delta: gpui::Point<f32>,
2290 cx: &mut ViewContext<Self>,
2291 ) {
2292 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2293
2294 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2295 let tail = tail.to_display_point(&display_map);
2296 self.select_columns(tail, position, goal_column, &display_map, cx);
2297 } else if let Some(mut pending) = self.selections.pending_anchor() {
2298 let buffer = self.buffer.read(cx).snapshot(cx);
2299 let head;
2300 let tail;
2301 let mode = self.selections.pending_mode().unwrap();
2302 match &mode {
2303 SelectMode::Character => {
2304 head = position.to_point(&display_map);
2305 tail = pending.tail().to_point(&buffer);
2306 }
2307 SelectMode::Word(original_range) => {
2308 let original_display_range = original_range.start.to_display_point(&display_map)
2309 ..original_range.end.to_display_point(&display_map);
2310 let original_buffer_range = original_display_range.start.to_point(&display_map)
2311 ..original_display_range.end.to_point(&display_map);
2312 if movement::is_inside_word(&display_map, position)
2313 || original_display_range.contains(&position)
2314 {
2315 let word_range = movement::surrounding_word(&display_map, position);
2316 if word_range.start < original_display_range.start {
2317 head = word_range.start.to_point(&display_map);
2318 } else {
2319 head = word_range.end.to_point(&display_map);
2320 }
2321 } else {
2322 head = position.to_point(&display_map);
2323 }
2324
2325 if head <= original_buffer_range.start {
2326 tail = original_buffer_range.end;
2327 } else {
2328 tail = original_buffer_range.start;
2329 }
2330 }
2331 SelectMode::Line(original_range) => {
2332 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2333
2334 let position = display_map
2335 .clip_point(position, Bias::Left)
2336 .to_point(&display_map);
2337 let line_start = display_map.prev_line_boundary(position).0;
2338 let next_line_start = buffer.clip_point(
2339 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2340 Bias::Left,
2341 );
2342
2343 if line_start < original_range.start {
2344 head = line_start
2345 } else {
2346 head = next_line_start
2347 }
2348
2349 if head <= original_range.start {
2350 tail = original_range.end;
2351 } else {
2352 tail = original_range.start;
2353 }
2354 }
2355 SelectMode::All => {
2356 return;
2357 }
2358 };
2359
2360 if head < tail {
2361 pending.start = buffer.anchor_before(head);
2362 pending.end = buffer.anchor_before(tail);
2363 pending.reversed = true;
2364 } else {
2365 pending.start = buffer.anchor_before(tail);
2366 pending.end = buffer.anchor_before(head);
2367 pending.reversed = false;
2368 }
2369
2370 self.change_selections(None, cx, |s| {
2371 s.set_pending(pending, mode);
2372 });
2373 } else {
2374 log::error!("update_selection dispatched with no pending selection");
2375 return;
2376 }
2377
2378 self.apply_scroll_delta(scroll_delta, cx);
2379 cx.notify();
2380 }
2381
2382 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2383 self.columnar_selection_tail.take();
2384 if self.selections.pending_anchor().is_some() {
2385 let selections = self.selections.all::<usize>(cx);
2386 self.change_selections(None, cx, |s| {
2387 s.select(selections);
2388 s.clear_pending();
2389 });
2390 }
2391 }
2392
2393 fn select_columns(
2394 &mut self,
2395 tail: DisplayPoint,
2396 head: DisplayPoint,
2397 goal_column: u32,
2398 display_map: &DisplaySnapshot,
2399 cx: &mut ViewContext<Self>,
2400 ) {
2401 let start_row = cmp::min(tail.row(), head.row());
2402 let end_row = cmp::max(tail.row(), head.row());
2403 let start_column = cmp::min(tail.column(), goal_column);
2404 let end_column = cmp::max(tail.column(), goal_column);
2405 let reversed = start_column < tail.column();
2406
2407 let selection_ranges = (start_row.0..=end_row.0)
2408 .map(DisplayRow)
2409 .filter_map(|row| {
2410 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2411 let start = display_map
2412 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2413 .to_point(display_map);
2414 let end = display_map
2415 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2416 .to_point(display_map);
2417 if reversed {
2418 Some(end..start)
2419 } else {
2420 Some(start..end)
2421 }
2422 } else {
2423 None
2424 }
2425 })
2426 .collect::<Vec<_>>();
2427
2428 self.change_selections(None, cx, |s| {
2429 s.select_ranges(selection_ranges);
2430 });
2431 cx.notify();
2432 }
2433
2434 pub fn has_pending_nonempty_selection(&self) -> bool {
2435 let pending_nonempty_selection = match self.selections.pending_anchor() {
2436 Some(Selection { start, end, .. }) => start != end,
2437 None => false,
2438 };
2439
2440 pending_nonempty_selection
2441 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2442 }
2443
2444 pub fn has_pending_selection(&self) -> bool {
2445 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2446 }
2447
2448 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2449 if self.clear_expanded_diff_hunks(cx) {
2450 cx.notify();
2451 return;
2452 }
2453 if self.dismiss_menus_and_popups(true, cx) {
2454 return;
2455 }
2456
2457 if self.mode == EditorMode::Full
2458 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2459 {
2460 return;
2461 }
2462
2463 cx.propagate();
2464 }
2465
2466 pub fn dismiss_menus_and_popups(
2467 &mut self,
2468 should_report_inline_completion_event: bool,
2469 cx: &mut ViewContext<Self>,
2470 ) -> bool {
2471 if self.take_rename(false, cx).is_some() {
2472 return true;
2473 }
2474
2475 if hide_hover(self, cx) {
2476 return true;
2477 }
2478
2479 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2480 return true;
2481 }
2482
2483 if self.hide_context_menu(cx).is_some() {
2484 if self.show_inline_completions_in_menu(cx) && self.has_active_inline_completion() {
2485 self.update_visible_inline_completion(cx);
2486 }
2487 return true;
2488 }
2489
2490 if self.mouse_context_menu.take().is_some() {
2491 return true;
2492 }
2493
2494 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2495 return true;
2496 }
2497
2498 if self.snippet_stack.pop().is_some() {
2499 return true;
2500 }
2501
2502 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2503 self.dismiss_diagnostics(cx);
2504 return true;
2505 }
2506
2507 false
2508 }
2509
2510 fn linked_editing_ranges_for(
2511 &self,
2512 selection: Range<text::Anchor>,
2513 cx: &AppContext,
2514 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2515 if self.linked_edit_ranges.is_empty() {
2516 return None;
2517 }
2518 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2519 selection.end.buffer_id.and_then(|end_buffer_id| {
2520 if selection.start.buffer_id != Some(end_buffer_id) {
2521 return None;
2522 }
2523 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2524 let snapshot = buffer.read(cx).snapshot();
2525 self.linked_edit_ranges
2526 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2527 .map(|ranges| (ranges, snapshot, buffer))
2528 })?;
2529 use text::ToOffset as TO;
2530 // find offset from the start of current range to current cursor position
2531 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2532
2533 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2534 let start_difference = start_offset - start_byte_offset;
2535 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2536 let end_difference = end_offset - start_byte_offset;
2537 // Current range has associated linked ranges.
2538 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2539 for range in linked_ranges.iter() {
2540 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2541 let end_offset = start_offset + end_difference;
2542 let start_offset = start_offset + start_difference;
2543 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2544 continue;
2545 }
2546 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
2547 if s.start.buffer_id != selection.start.buffer_id
2548 || s.end.buffer_id != selection.end.buffer_id
2549 {
2550 return false;
2551 }
2552 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2553 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2554 }) {
2555 continue;
2556 }
2557 let start = buffer_snapshot.anchor_after(start_offset);
2558 let end = buffer_snapshot.anchor_after(end_offset);
2559 linked_edits
2560 .entry(buffer.clone())
2561 .or_default()
2562 .push(start..end);
2563 }
2564 Some(linked_edits)
2565 }
2566
2567 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2568 let text: Arc<str> = text.into();
2569
2570 if self.read_only(cx) {
2571 return;
2572 }
2573
2574 let selections = self.selections.all_adjusted(cx);
2575 let mut bracket_inserted = false;
2576 let mut edits = Vec::new();
2577 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2578 let mut new_selections = Vec::with_capacity(selections.len());
2579 let mut new_autoclose_regions = Vec::new();
2580 let snapshot = self.buffer.read(cx).read(cx);
2581
2582 for (selection, autoclose_region) in
2583 self.selections_with_autoclose_regions(selections, &snapshot)
2584 {
2585 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2586 // Determine if the inserted text matches the opening or closing
2587 // bracket of any of this language's bracket pairs.
2588 let mut bracket_pair = None;
2589 let mut is_bracket_pair_start = false;
2590 let mut is_bracket_pair_end = false;
2591 if !text.is_empty() {
2592 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2593 // and they are removing the character that triggered IME popup.
2594 for (pair, enabled) in scope.brackets() {
2595 if !pair.close && !pair.surround {
2596 continue;
2597 }
2598
2599 if enabled && pair.start.ends_with(text.as_ref()) {
2600 let prefix_len = pair.start.len() - text.len();
2601 let preceding_text_matches_prefix = prefix_len == 0
2602 || (selection.start.column >= (prefix_len as u32)
2603 && snapshot.contains_str_at(
2604 Point::new(
2605 selection.start.row,
2606 selection.start.column - (prefix_len as u32),
2607 ),
2608 &pair.start[..prefix_len],
2609 ));
2610 if preceding_text_matches_prefix {
2611 bracket_pair = Some(pair.clone());
2612 is_bracket_pair_start = true;
2613 break;
2614 }
2615 }
2616 if pair.end.as_str() == text.as_ref() {
2617 bracket_pair = Some(pair.clone());
2618 is_bracket_pair_end = true;
2619 break;
2620 }
2621 }
2622 }
2623
2624 if let Some(bracket_pair) = bracket_pair {
2625 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2626 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2627 let auto_surround =
2628 self.use_auto_surround && snapshot_settings.use_auto_surround;
2629 if selection.is_empty() {
2630 if is_bracket_pair_start {
2631 // If the inserted text is a suffix of an opening bracket and the
2632 // selection is preceded by the rest of the opening bracket, then
2633 // insert the closing bracket.
2634 let following_text_allows_autoclose = snapshot
2635 .chars_at(selection.start)
2636 .next()
2637 .map_or(true, |c| scope.should_autoclose_before(c));
2638
2639 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2640 && bracket_pair.start.len() == 1
2641 {
2642 let target = bracket_pair.start.chars().next().unwrap();
2643 let current_line_count = snapshot
2644 .reversed_chars_at(selection.start)
2645 .take_while(|&c| c != '\n')
2646 .filter(|&c| c == target)
2647 .count();
2648 current_line_count % 2 == 1
2649 } else {
2650 false
2651 };
2652
2653 if autoclose
2654 && bracket_pair.close
2655 && following_text_allows_autoclose
2656 && !is_closing_quote
2657 {
2658 let anchor = snapshot.anchor_before(selection.end);
2659 new_selections.push((selection.map(|_| anchor), text.len()));
2660 new_autoclose_regions.push((
2661 anchor,
2662 text.len(),
2663 selection.id,
2664 bracket_pair.clone(),
2665 ));
2666 edits.push((
2667 selection.range(),
2668 format!("{}{}", text, bracket_pair.end).into(),
2669 ));
2670 bracket_inserted = true;
2671 continue;
2672 }
2673 }
2674
2675 if let Some(region) = autoclose_region {
2676 // If the selection is followed by an auto-inserted closing bracket,
2677 // then don't insert that closing bracket again; just move the selection
2678 // past the closing bracket.
2679 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2680 && text.as_ref() == region.pair.end.as_str();
2681 if should_skip {
2682 let anchor = snapshot.anchor_after(selection.end);
2683 new_selections
2684 .push((selection.map(|_| anchor), region.pair.end.len()));
2685 continue;
2686 }
2687 }
2688
2689 let always_treat_brackets_as_autoclosed = snapshot
2690 .settings_at(selection.start, cx)
2691 .always_treat_brackets_as_autoclosed;
2692 if always_treat_brackets_as_autoclosed
2693 && is_bracket_pair_end
2694 && snapshot.contains_str_at(selection.end, text.as_ref())
2695 {
2696 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2697 // and the inserted text is a closing bracket and the selection is followed
2698 // by the closing bracket then move the selection past the closing bracket.
2699 let anchor = snapshot.anchor_after(selection.end);
2700 new_selections.push((selection.map(|_| anchor), text.len()));
2701 continue;
2702 }
2703 }
2704 // If an opening bracket is 1 character long and is typed while
2705 // text is selected, then surround that text with the bracket pair.
2706 else if auto_surround
2707 && bracket_pair.surround
2708 && is_bracket_pair_start
2709 && bracket_pair.start.chars().count() == 1
2710 {
2711 edits.push((selection.start..selection.start, text.clone()));
2712 edits.push((
2713 selection.end..selection.end,
2714 bracket_pair.end.as_str().into(),
2715 ));
2716 bracket_inserted = true;
2717 new_selections.push((
2718 Selection {
2719 id: selection.id,
2720 start: snapshot.anchor_after(selection.start),
2721 end: snapshot.anchor_before(selection.end),
2722 reversed: selection.reversed,
2723 goal: selection.goal,
2724 },
2725 0,
2726 ));
2727 continue;
2728 }
2729 }
2730 }
2731
2732 if self.auto_replace_emoji_shortcode
2733 && selection.is_empty()
2734 && text.as_ref().ends_with(':')
2735 {
2736 if let Some(possible_emoji_short_code) =
2737 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2738 {
2739 if !possible_emoji_short_code.is_empty() {
2740 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2741 let emoji_shortcode_start = Point::new(
2742 selection.start.row,
2743 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2744 );
2745
2746 // Remove shortcode from buffer
2747 edits.push((
2748 emoji_shortcode_start..selection.start,
2749 "".to_string().into(),
2750 ));
2751 new_selections.push((
2752 Selection {
2753 id: selection.id,
2754 start: snapshot.anchor_after(emoji_shortcode_start),
2755 end: snapshot.anchor_before(selection.start),
2756 reversed: selection.reversed,
2757 goal: selection.goal,
2758 },
2759 0,
2760 ));
2761
2762 // Insert emoji
2763 let selection_start_anchor = snapshot.anchor_after(selection.start);
2764 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2765 edits.push((selection.start..selection.end, emoji.to_string().into()));
2766
2767 continue;
2768 }
2769 }
2770 }
2771 }
2772
2773 // If not handling any auto-close operation, then just replace the selected
2774 // text with the given input and move the selection to the end of the
2775 // newly inserted text.
2776 let anchor = snapshot.anchor_after(selection.end);
2777 if !self.linked_edit_ranges.is_empty() {
2778 let start_anchor = snapshot.anchor_before(selection.start);
2779
2780 let is_word_char = text.chars().next().map_or(true, |char| {
2781 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2782 classifier.is_word(char)
2783 });
2784
2785 if is_word_char {
2786 if let Some(ranges) = self
2787 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2788 {
2789 for (buffer, edits) in ranges {
2790 linked_edits
2791 .entry(buffer.clone())
2792 .or_default()
2793 .extend(edits.into_iter().map(|range| (range, text.clone())));
2794 }
2795 }
2796 }
2797 }
2798
2799 new_selections.push((selection.map(|_| anchor), 0));
2800 edits.push((selection.start..selection.end, text.clone()));
2801 }
2802
2803 drop(snapshot);
2804
2805 self.transact(cx, |this, cx| {
2806 this.buffer.update(cx, |buffer, cx| {
2807 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2808 });
2809 for (buffer, edits) in linked_edits {
2810 buffer.update(cx, |buffer, cx| {
2811 let snapshot = buffer.snapshot();
2812 let edits = edits
2813 .into_iter()
2814 .map(|(range, text)| {
2815 use text::ToPoint as TP;
2816 let end_point = TP::to_point(&range.end, &snapshot);
2817 let start_point = TP::to_point(&range.start, &snapshot);
2818 (start_point..end_point, text)
2819 })
2820 .sorted_by_key(|(range, _)| range.start)
2821 .collect::<Vec<_>>();
2822 buffer.edit(edits, None, cx);
2823 })
2824 }
2825 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2826 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2827 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2828 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2829 .zip(new_selection_deltas)
2830 .map(|(selection, delta)| Selection {
2831 id: selection.id,
2832 start: selection.start + delta,
2833 end: selection.end + delta,
2834 reversed: selection.reversed,
2835 goal: SelectionGoal::None,
2836 })
2837 .collect::<Vec<_>>();
2838
2839 let mut i = 0;
2840 for (position, delta, selection_id, pair) in new_autoclose_regions {
2841 let position = position.to_offset(&map.buffer_snapshot) + delta;
2842 let start = map.buffer_snapshot.anchor_before(position);
2843 let end = map.buffer_snapshot.anchor_after(position);
2844 while let Some(existing_state) = this.autoclose_regions.get(i) {
2845 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2846 Ordering::Less => i += 1,
2847 Ordering::Greater => break,
2848 Ordering::Equal => {
2849 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2850 Ordering::Less => i += 1,
2851 Ordering::Equal => break,
2852 Ordering::Greater => break,
2853 }
2854 }
2855 }
2856 }
2857 this.autoclose_regions.insert(
2858 i,
2859 AutocloseRegion {
2860 selection_id,
2861 range: start..end,
2862 pair,
2863 },
2864 );
2865 }
2866
2867 let had_active_inline_completion = this.has_active_inline_completion();
2868 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2869 s.select(new_selections)
2870 });
2871
2872 if !bracket_inserted {
2873 if let Some(on_type_format_task) =
2874 this.trigger_on_type_formatting(text.to_string(), cx)
2875 {
2876 on_type_format_task.detach_and_log_err(cx);
2877 }
2878 }
2879
2880 let editor_settings = EditorSettings::get_global(cx);
2881 if bracket_inserted
2882 && (editor_settings.auto_signature_help
2883 || editor_settings.show_signature_help_after_edits)
2884 {
2885 this.show_signature_help(&ShowSignatureHelp, cx);
2886 }
2887
2888 let trigger_in_words =
2889 this.show_inline_completions_in_menu(cx) || !had_active_inline_completion;
2890 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2891 linked_editing_ranges::refresh_linked_ranges(this, cx);
2892 this.refresh_inline_completion(true, false, cx);
2893 });
2894 }
2895
2896 fn find_possible_emoji_shortcode_at_position(
2897 snapshot: &MultiBufferSnapshot,
2898 position: Point,
2899 ) -> Option<String> {
2900 let mut chars = Vec::new();
2901 let mut found_colon = false;
2902 for char in snapshot.reversed_chars_at(position).take(100) {
2903 // Found a possible emoji shortcode in the middle of the buffer
2904 if found_colon {
2905 if char.is_whitespace() {
2906 chars.reverse();
2907 return Some(chars.iter().collect());
2908 }
2909 // If the previous character is not a whitespace, we are in the middle of a word
2910 // and we only want to complete the shortcode if the word is made up of other emojis
2911 let mut containing_word = String::new();
2912 for ch in snapshot
2913 .reversed_chars_at(position)
2914 .skip(chars.len() + 1)
2915 .take(100)
2916 {
2917 if ch.is_whitespace() {
2918 break;
2919 }
2920 containing_word.push(ch);
2921 }
2922 let containing_word = containing_word.chars().rev().collect::<String>();
2923 if util::word_consists_of_emojis(containing_word.as_str()) {
2924 chars.reverse();
2925 return Some(chars.iter().collect());
2926 }
2927 }
2928
2929 if char.is_whitespace() || !char.is_ascii() {
2930 return None;
2931 }
2932 if char == ':' {
2933 found_colon = true;
2934 } else {
2935 chars.push(char);
2936 }
2937 }
2938 // Found a possible emoji shortcode at the beginning of the buffer
2939 chars.reverse();
2940 Some(chars.iter().collect())
2941 }
2942
2943 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2944 self.transact(cx, |this, cx| {
2945 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2946 let selections = this.selections.all::<usize>(cx);
2947 let multi_buffer = this.buffer.read(cx);
2948 let buffer = multi_buffer.snapshot(cx);
2949 selections
2950 .iter()
2951 .map(|selection| {
2952 let start_point = selection.start.to_point(&buffer);
2953 let mut indent =
2954 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2955 indent.len = cmp::min(indent.len, start_point.column);
2956 let start = selection.start;
2957 let end = selection.end;
2958 let selection_is_empty = start == end;
2959 let language_scope = buffer.language_scope_at(start);
2960 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2961 &language_scope
2962 {
2963 let leading_whitespace_len = buffer
2964 .reversed_chars_at(start)
2965 .take_while(|c| c.is_whitespace() && *c != '\n')
2966 .map(|c| c.len_utf8())
2967 .sum::<usize>();
2968
2969 let trailing_whitespace_len = buffer
2970 .chars_at(end)
2971 .take_while(|c| c.is_whitespace() && *c != '\n')
2972 .map(|c| c.len_utf8())
2973 .sum::<usize>();
2974
2975 let insert_extra_newline =
2976 language.brackets().any(|(pair, enabled)| {
2977 let pair_start = pair.start.trim_end();
2978 let pair_end = pair.end.trim_start();
2979
2980 enabled
2981 && pair.newline
2982 && buffer.contains_str_at(
2983 end + trailing_whitespace_len,
2984 pair_end,
2985 )
2986 && buffer.contains_str_at(
2987 (start - leading_whitespace_len)
2988 .saturating_sub(pair_start.len()),
2989 pair_start,
2990 )
2991 });
2992
2993 // Comment extension on newline is allowed only for cursor selections
2994 let comment_delimiter = maybe!({
2995 if !selection_is_empty {
2996 return None;
2997 }
2998
2999 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3000 return None;
3001 }
3002
3003 let delimiters = language.line_comment_prefixes();
3004 let max_len_of_delimiter =
3005 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3006 let (snapshot, range) =
3007 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3008
3009 let mut index_of_first_non_whitespace = 0;
3010 let comment_candidate = snapshot
3011 .chars_for_range(range)
3012 .skip_while(|c| {
3013 let should_skip = c.is_whitespace();
3014 if should_skip {
3015 index_of_first_non_whitespace += 1;
3016 }
3017 should_skip
3018 })
3019 .take(max_len_of_delimiter)
3020 .collect::<String>();
3021 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3022 comment_candidate.starts_with(comment_prefix.as_ref())
3023 })?;
3024 let cursor_is_placed_after_comment_marker =
3025 index_of_first_non_whitespace + comment_prefix.len()
3026 <= start_point.column as usize;
3027 if cursor_is_placed_after_comment_marker {
3028 Some(comment_prefix.clone())
3029 } else {
3030 None
3031 }
3032 });
3033 (comment_delimiter, insert_extra_newline)
3034 } else {
3035 (None, false)
3036 };
3037
3038 let capacity_for_delimiter = comment_delimiter
3039 .as_deref()
3040 .map(str::len)
3041 .unwrap_or_default();
3042 let mut new_text =
3043 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3044 new_text.push('\n');
3045 new_text.extend(indent.chars());
3046 if let Some(delimiter) = &comment_delimiter {
3047 new_text.push_str(delimiter);
3048 }
3049 if insert_extra_newline {
3050 new_text = new_text.repeat(2);
3051 }
3052
3053 let anchor = buffer.anchor_after(end);
3054 let new_selection = selection.map(|_| anchor);
3055 (
3056 (start..end, new_text),
3057 (insert_extra_newline, new_selection),
3058 )
3059 })
3060 .unzip()
3061 };
3062
3063 this.edit_with_autoindent(edits, cx);
3064 let buffer = this.buffer.read(cx).snapshot(cx);
3065 let new_selections = selection_fixup_info
3066 .into_iter()
3067 .map(|(extra_newline_inserted, new_selection)| {
3068 let mut cursor = new_selection.end.to_point(&buffer);
3069 if extra_newline_inserted {
3070 cursor.row -= 1;
3071 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3072 }
3073 new_selection.map(|_| cursor)
3074 })
3075 .collect();
3076
3077 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3078 this.refresh_inline_completion(true, false, cx);
3079 });
3080 }
3081
3082 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3083 let buffer = self.buffer.read(cx);
3084 let snapshot = buffer.snapshot(cx);
3085
3086 let mut edits = Vec::new();
3087 let mut rows = Vec::new();
3088
3089 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3090 let cursor = selection.head();
3091 let row = cursor.row;
3092
3093 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3094
3095 let newline = "\n".to_string();
3096 edits.push((start_of_line..start_of_line, newline));
3097
3098 rows.push(row + rows_inserted as u32);
3099 }
3100
3101 self.transact(cx, |editor, cx| {
3102 editor.edit(edits, cx);
3103
3104 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3105 let mut index = 0;
3106 s.move_cursors_with(|map, _, _| {
3107 let row = rows[index];
3108 index += 1;
3109
3110 let point = Point::new(row, 0);
3111 let boundary = map.next_line_boundary(point).1;
3112 let clipped = map.clip_point(boundary, Bias::Left);
3113
3114 (clipped, SelectionGoal::None)
3115 });
3116 });
3117
3118 let mut indent_edits = Vec::new();
3119 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3120 for row in rows {
3121 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3122 for (row, indent) in indents {
3123 if indent.len == 0 {
3124 continue;
3125 }
3126
3127 let text = match indent.kind {
3128 IndentKind::Space => " ".repeat(indent.len as usize),
3129 IndentKind::Tab => "\t".repeat(indent.len as usize),
3130 };
3131 let point = Point::new(row.0, 0);
3132 indent_edits.push((point..point, text));
3133 }
3134 }
3135 editor.edit(indent_edits, cx);
3136 });
3137 }
3138
3139 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3140 let buffer = self.buffer.read(cx);
3141 let snapshot = buffer.snapshot(cx);
3142
3143 let mut edits = Vec::new();
3144 let mut rows = Vec::new();
3145 let mut rows_inserted = 0;
3146
3147 for selection in self.selections.all_adjusted(cx) {
3148 let cursor = selection.head();
3149 let row = cursor.row;
3150
3151 let point = Point::new(row + 1, 0);
3152 let start_of_line = snapshot.clip_point(point, Bias::Left);
3153
3154 let newline = "\n".to_string();
3155 edits.push((start_of_line..start_of_line, newline));
3156
3157 rows_inserted += 1;
3158 rows.push(row + rows_inserted);
3159 }
3160
3161 self.transact(cx, |editor, cx| {
3162 editor.edit(edits, cx);
3163
3164 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3165 let mut index = 0;
3166 s.move_cursors_with(|map, _, _| {
3167 let row = rows[index];
3168 index += 1;
3169
3170 let point = Point::new(row, 0);
3171 let boundary = map.next_line_boundary(point).1;
3172 let clipped = map.clip_point(boundary, Bias::Left);
3173
3174 (clipped, SelectionGoal::None)
3175 });
3176 });
3177
3178 let mut indent_edits = Vec::new();
3179 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3180 for row in rows {
3181 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3182 for (row, indent) in indents {
3183 if indent.len == 0 {
3184 continue;
3185 }
3186
3187 let text = match indent.kind {
3188 IndentKind::Space => " ".repeat(indent.len as usize),
3189 IndentKind::Tab => "\t".repeat(indent.len as usize),
3190 };
3191 let point = Point::new(row.0, 0);
3192 indent_edits.push((point..point, text));
3193 }
3194 }
3195 editor.edit(indent_edits, cx);
3196 });
3197 }
3198
3199 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3200 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3201 original_indent_columns: Vec::new(),
3202 });
3203 self.insert_with_autoindent_mode(text, autoindent, cx);
3204 }
3205
3206 fn insert_with_autoindent_mode(
3207 &mut self,
3208 text: &str,
3209 autoindent_mode: Option<AutoindentMode>,
3210 cx: &mut ViewContext<Self>,
3211 ) {
3212 if self.read_only(cx) {
3213 return;
3214 }
3215
3216 let text: Arc<str> = text.into();
3217 self.transact(cx, |this, cx| {
3218 let old_selections = this.selections.all_adjusted(cx);
3219 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3220 let anchors = {
3221 let snapshot = buffer.read(cx);
3222 old_selections
3223 .iter()
3224 .map(|s| {
3225 let anchor = snapshot.anchor_after(s.head());
3226 s.map(|_| anchor)
3227 })
3228 .collect::<Vec<_>>()
3229 };
3230 buffer.edit(
3231 old_selections
3232 .iter()
3233 .map(|s| (s.start..s.end, text.clone())),
3234 autoindent_mode,
3235 cx,
3236 );
3237 anchors
3238 });
3239
3240 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3241 s.select_anchors(selection_anchors);
3242 })
3243 });
3244 }
3245
3246 fn trigger_completion_on_input(
3247 &mut self,
3248 text: &str,
3249 trigger_in_words: bool,
3250 cx: &mut ViewContext<Self>,
3251 ) {
3252 if self.is_completion_trigger(text, trigger_in_words, cx) {
3253 self.show_completions(
3254 &ShowCompletions {
3255 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3256 },
3257 cx,
3258 );
3259 } else {
3260 self.hide_context_menu(cx);
3261 }
3262 }
3263
3264 fn is_completion_trigger(
3265 &self,
3266 text: &str,
3267 trigger_in_words: bool,
3268 cx: &mut ViewContext<Self>,
3269 ) -> bool {
3270 let position = self.selections.newest_anchor().head();
3271 let multibuffer = self.buffer.read(cx);
3272 let Some(buffer) = position
3273 .buffer_id
3274 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3275 else {
3276 return false;
3277 };
3278
3279 if let Some(completion_provider) = &self.completion_provider {
3280 completion_provider.is_completion_trigger(
3281 &buffer,
3282 position.text_anchor,
3283 text,
3284 trigger_in_words,
3285 cx,
3286 )
3287 } else {
3288 false
3289 }
3290 }
3291
3292 /// If any empty selections is touching the start of its innermost containing autoclose
3293 /// region, expand it to select the brackets.
3294 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3295 let selections = self.selections.all::<usize>(cx);
3296 let buffer = self.buffer.read(cx).read(cx);
3297 let new_selections = self
3298 .selections_with_autoclose_regions(selections, &buffer)
3299 .map(|(mut selection, region)| {
3300 if !selection.is_empty() {
3301 return selection;
3302 }
3303
3304 if let Some(region) = region {
3305 let mut range = region.range.to_offset(&buffer);
3306 if selection.start == range.start && range.start >= region.pair.start.len() {
3307 range.start -= region.pair.start.len();
3308 if buffer.contains_str_at(range.start, ®ion.pair.start)
3309 && buffer.contains_str_at(range.end, ®ion.pair.end)
3310 {
3311 range.end += region.pair.end.len();
3312 selection.start = range.start;
3313 selection.end = range.end;
3314
3315 return selection;
3316 }
3317 }
3318 }
3319
3320 let always_treat_brackets_as_autoclosed = buffer
3321 .settings_at(selection.start, cx)
3322 .always_treat_brackets_as_autoclosed;
3323
3324 if !always_treat_brackets_as_autoclosed {
3325 return selection;
3326 }
3327
3328 if let Some(scope) = buffer.language_scope_at(selection.start) {
3329 for (pair, enabled) in scope.brackets() {
3330 if !enabled || !pair.close {
3331 continue;
3332 }
3333
3334 if buffer.contains_str_at(selection.start, &pair.end) {
3335 let pair_start_len = pair.start.len();
3336 if buffer.contains_str_at(
3337 selection.start.saturating_sub(pair_start_len),
3338 &pair.start,
3339 ) {
3340 selection.start -= pair_start_len;
3341 selection.end += pair.end.len();
3342
3343 return selection;
3344 }
3345 }
3346 }
3347 }
3348
3349 selection
3350 })
3351 .collect();
3352
3353 drop(buffer);
3354 self.change_selections(None, cx, |selections| selections.select(new_selections));
3355 }
3356
3357 /// Iterate the given selections, and for each one, find the smallest surrounding
3358 /// autoclose region. This uses the ordering of the selections and the autoclose
3359 /// regions to avoid repeated comparisons.
3360 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3361 &'a self,
3362 selections: impl IntoIterator<Item = Selection<D>>,
3363 buffer: &'a MultiBufferSnapshot,
3364 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3365 let mut i = 0;
3366 let mut regions = self.autoclose_regions.as_slice();
3367 selections.into_iter().map(move |selection| {
3368 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3369
3370 let mut enclosing = None;
3371 while let Some(pair_state) = regions.get(i) {
3372 if pair_state.range.end.to_offset(buffer) < range.start {
3373 regions = ®ions[i + 1..];
3374 i = 0;
3375 } else if pair_state.range.start.to_offset(buffer) > range.end {
3376 break;
3377 } else {
3378 if pair_state.selection_id == selection.id {
3379 enclosing = Some(pair_state);
3380 }
3381 i += 1;
3382 }
3383 }
3384
3385 (selection, enclosing)
3386 })
3387 }
3388
3389 /// Remove any autoclose regions that no longer contain their selection.
3390 fn invalidate_autoclose_regions(
3391 &mut self,
3392 mut selections: &[Selection<Anchor>],
3393 buffer: &MultiBufferSnapshot,
3394 ) {
3395 self.autoclose_regions.retain(|state| {
3396 let mut i = 0;
3397 while let Some(selection) = selections.get(i) {
3398 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3399 selections = &selections[1..];
3400 continue;
3401 }
3402 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3403 break;
3404 }
3405 if selection.id == state.selection_id {
3406 return true;
3407 } else {
3408 i += 1;
3409 }
3410 }
3411 false
3412 });
3413 }
3414
3415 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3416 let offset = position.to_offset(buffer);
3417 let (word_range, kind) = buffer.surrounding_word(offset, true);
3418 if offset > word_range.start && kind == Some(CharKind::Word) {
3419 Some(
3420 buffer
3421 .text_for_range(word_range.start..offset)
3422 .collect::<String>(),
3423 )
3424 } else {
3425 None
3426 }
3427 }
3428
3429 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3430 self.refresh_inlay_hints(
3431 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3432 cx,
3433 );
3434 }
3435
3436 pub fn inlay_hints_enabled(&self) -> bool {
3437 self.inlay_hint_cache.enabled
3438 }
3439
3440 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3441 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3442 return;
3443 }
3444
3445 let reason_description = reason.description();
3446 let ignore_debounce = matches!(
3447 reason,
3448 InlayHintRefreshReason::SettingsChange(_)
3449 | InlayHintRefreshReason::Toggle(_)
3450 | InlayHintRefreshReason::ExcerptsRemoved(_)
3451 );
3452 let (invalidate_cache, required_languages) = match reason {
3453 InlayHintRefreshReason::Toggle(enabled) => {
3454 self.inlay_hint_cache.enabled = enabled;
3455 if enabled {
3456 (InvalidationStrategy::RefreshRequested, None)
3457 } else {
3458 self.inlay_hint_cache.clear();
3459 self.splice_inlays(
3460 self.visible_inlay_hints(cx)
3461 .iter()
3462 .map(|inlay| inlay.id)
3463 .collect(),
3464 Vec::new(),
3465 cx,
3466 );
3467 return;
3468 }
3469 }
3470 InlayHintRefreshReason::SettingsChange(new_settings) => {
3471 match self.inlay_hint_cache.update_settings(
3472 &self.buffer,
3473 new_settings,
3474 self.visible_inlay_hints(cx),
3475 cx,
3476 ) {
3477 ControlFlow::Break(Some(InlaySplice {
3478 to_remove,
3479 to_insert,
3480 })) => {
3481 self.splice_inlays(to_remove, to_insert, cx);
3482 return;
3483 }
3484 ControlFlow::Break(None) => return,
3485 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3486 }
3487 }
3488 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3489 if let Some(InlaySplice {
3490 to_remove,
3491 to_insert,
3492 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3493 {
3494 self.splice_inlays(to_remove, to_insert, cx);
3495 }
3496 return;
3497 }
3498 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3499 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3500 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3501 }
3502 InlayHintRefreshReason::RefreshRequested => {
3503 (InvalidationStrategy::RefreshRequested, None)
3504 }
3505 };
3506
3507 if let Some(InlaySplice {
3508 to_remove,
3509 to_insert,
3510 }) = self.inlay_hint_cache.spawn_hint_refresh(
3511 reason_description,
3512 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3513 invalidate_cache,
3514 ignore_debounce,
3515 cx,
3516 ) {
3517 self.splice_inlays(to_remove, to_insert, cx);
3518 }
3519 }
3520
3521 fn visible_inlay_hints(&self, cx: &ViewContext<Editor>) -> Vec<Inlay> {
3522 self.display_map
3523 .read(cx)
3524 .current_inlays()
3525 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3526 .cloned()
3527 .collect()
3528 }
3529
3530 pub fn excerpts_for_inlay_hints_query(
3531 &self,
3532 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3533 cx: &mut ViewContext<Editor>,
3534 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3535 let Some(project) = self.project.as_ref() else {
3536 return HashMap::default();
3537 };
3538 let project = project.read(cx);
3539 let multi_buffer = self.buffer().read(cx);
3540 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3541 let multi_buffer_visible_start = self
3542 .scroll_manager
3543 .anchor()
3544 .anchor
3545 .to_point(&multi_buffer_snapshot);
3546 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3547 multi_buffer_visible_start
3548 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3549 Bias::Left,
3550 );
3551 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3552 multi_buffer_snapshot
3553 .range_to_buffer_ranges(multi_buffer_visible_range)
3554 .into_iter()
3555 .filter(|(_, excerpt_visible_range)| !excerpt_visible_range.is_empty())
3556 .filter_map(|(excerpt, excerpt_visible_range)| {
3557 let buffer_file = project::File::from_dyn(excerpt.buffer().file())?;
3558 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3559 let worktree_entry = buffer_worktree
3560 .read(cx)
3561 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3562 if worktree_entry.is_ignored {
3563 return None;
3564 }
3565
3566 let language = excerpt.buffer().language()?;
3567 if let Some(restrict_to_languages) = restrict_to_languages {
3568 if !restrict_to_languages.contains(language) {
3569 return None;
3570 }
3571 }
3572 Some((
3573 excerpt.id(),
3574 (
3575 multi_buffer.buffer(excerpt.buffer_id()).unwrap(),
3576 excerpt.buffer().version().clone(),
3577 excerpt_visible_range,
3578 ),
3579 ))
3580 })
3581 .collect()
3582 }
3583
3584 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3585 TextLayoutDetails {
3586 text_system: cx.text_system().clone(),
3587 editor_style: self.style.clone().unwrap(),
3588 rem_size: cx.rem_size(),
3589 scroll_anchor: self.scroll_manager.anchor(),
3590 visible_rows: self.visible_line_count(),
3591 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3592 }
3593 }
3594
3595 fn splice_inlays(
3596 &self,
3597 to_remove: Vec<InlayId>,
3598 to_insert: Vec<Inlay>,
3599 cx: &mut ViewContext<Self>,
3600 ) {
3601 self.display_map.update(cx, |display_map, cx| {
3602 display_map.splice_inlays(to_remove, to_insert, cx)
3603 });
3604 cx.notify();
3605 }
3606
3607 fn trigger_on_type_formatting(
3608 &self,
3609 input: String,
3610 cx: &mut ViewContext<Self>,
3611 ) -> Option<Task<Result<()>>> {
3612 if input.len() != 1 {
3613 return None;
3614 }
3615
3616 let project = self.project.as_ref()?;
3617 let position = self.selections.newest_anchor().head();
3618 let (buffer, buffer_position) = self
3619 .buffer
3620 .read(cx)
3621 .text_anchor_for_position(position, cx)?;
3622
3623 let settings = language_settings::language_settings(
3624 buffer
3625 .read(cx)
3626 .language_at(buffer_position)
3627 .map(|l| l.name()),
3628 buffer.read(cx).file(),
3629 cx,
3630 );
3631 if !settings.use_on_type_format {
3632 return None;
3633 }
3634
3635 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3636 // hence we do LSP request & edit on host side only — add formats to host's history.
3637 let push_to_lsp_host_history = true;
3638 // If this is not the host, append its history with new edits.
3639 let push_to_client_history = project.read(cx).is_via_collab();
3640
3641 let on_type_formatting = project.update(cx, |project, cx| {
3642 project.on_type_format(
3643 buffer.clone(),
3644 buffer_position,
3645 input,
3646 push_to_lsp_host_history,
3647 cx,
3648 )
3649 });
3650 Some(cx.spawn(|editor, mut cx| async move {
3651 if let Some(transaction) = on_type_formatting.await? {
3652 if push_to_client_history {
3653 buffer
3654 .update(&mut cx, |buffer, _| {
3655 buffer.push_transaction(transaction, Instant::now());
3656 })
3657 .ok();
3658 }
3659 editor.update(&mut cx, |editor, cx| {
3660 editor.refresh_document_highlights(cx);
3661 })?;
3662 }
3663 Ok(())
3664 }))
3665 }
3666
3667 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3668 if self.pending_rename.is_some() {
3669 return;
3670 }
3671
3672 let Some(provider) = self.completion_provider.as_ref() else {
3673 return;
3674 };
3675
3676 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3677 return;
3678 }
3679
3680 let position = self.selections.newest_anchor().head();
3681 let (buffer, buffer_position) =
3682 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3683 output
3684 } else {
3685 return;
3686 };
3687 let show_completion_documentation = buffer
3688 .read(cx)
3689 .snapshot()
3690 .settings_at(buffer_position, cx)
3691 .show_completion_documentation;
3692
3693 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3694
3695 let trigger_kind = match &options.trigger {
3696 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3697 CompletionTriggerKind::TRIGGER_CHARACTER
3698 }
3699 _ => CompletionTriggerKind::INVOKED,
3700 };
3701 let completion_context = CompletionContext {
3702 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3703 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3704 Some(String::from(trigger))
3705 } else {
3706 None
3707 }
3708 }),
3709 trigger_kind,
3710 };
3711 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3712 let sort_completions = provider.sort_completions();
3713
3714 let id = post_inc(&mut self.next_completion_id);
3715 let task = cx.spawn(|editor, mut cx| {
3716 async move {
3717 editor.update(&mut cx, |this, _| {
3718 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3719 })?;
3720 let completions = completions.await.log_err();
3721 let menu = if let Some(completions) = completions {
3722 let mut menu = CompletionsMenu::new(
3723 id,
3724 sort_completions,
3725 show_completion_documentation,
3726 position,
3727 buffer.clone(),
3728 completions.into(),
3729 );
3730
3731 menu.filter(query.as_deref(), cx.background_executor().clone())
3732 .await;
3733
3734 menu.visible().then_some(menu)
3735 } else {
3736 None
3737 };
3738
3739 editor.update(&mut cx, |editor, cx| {
3740 match editor.context_menu.borrow().as_ref() {
3741 None => {}
3742 Some(CodeContextMenu::Completions(prev_menu)) => {
3743 if prev_menu.id > id {
3744 return;
3745 }
3746 }
3747 _ => return,
3748 }
3749
3750 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3751 let mut menu = menu.unwrap();
3752 menu.resolve_visible_completions(editor.completion_provider.as_deref(), cx);
3753
3754 if editor.show_inline_completions_in_menu(cx) {
3755 if let Some(hint) = editor.inline_completion_menu_hint(cx) {
3756 menu.show_inline_completion_hint(hint);
3757 }
3758 } else {
3759 editor.discard_inline_completion(false, cx);
3760 }
3761
3762 *editor.context_menu.borrow_mut() =
3763 Some(CodeContextMenu::Completions(menu));
3764
3765 cx.notify();
3766 } else if editor.completion_tasks.len() <= 1 {
3767 // If there are no more completion tasks and the last menu was
3768 // empty, we should hide it.
3769 let was_hidden = editor.hide_context_menu(cx).is_none();
3770 // If it was already hidden and we don't show inline
3771 // completions in the menu, we should also show the
3772 // inline-completion when available.
3773 if was_hidden && editor.show_inline_completions_in_menu(cx) {
3774 editor.update_visible_inline_completion(cx);
3775 }
3776 }
3777 })?;
3778
3779 Ok::<_, anyhow::Error>(())
3780 }
3781 .log_err()
3782 });
3783
3784 self.completion_tasks.push((id, task));
3785 }
3786
3787 pub fn confirm_completion(
3788 &mut self,
3789 action: &ConfirmCompletion,
3790 cx: &mut ViewContext<Self>,
3791 ) -> Option<Task<Result<()>>> {
3792 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3793 }
3794
3795 pub fn compose_completion(
3796 &mut self,
3797 action: &ComposeCompletion,
3798 cx: &mut ViewContext<Self>,
3799 ) -> Option<Task<Result<()>>> {
3800 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3801 }
3802
3803 fn do_completion(
3804 &mut self,
3805 item_ix: Option<usize>,
3806 intent: CompletionIntent,
3807 cx: &mut ViewContext<Editor>,
3808 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3809 use language::ToOffset as _;
3810
3811 let completions_menu =
3812 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3813 menu
3814 } else {
3815 return None;
3816 };
3817
3818 let mat = completions_menu
3819 .entries
3820 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
3821
3822 let mat = match mat {
3823 CompletionEntry::InlineCompletionHint { .. } => {
3824 self.accept_inline_completion(&AcceptInlineCompletion, cx);
3825 cx.stop_propagation();
3826 return Some(Task::ready(Ok(())));
3827 }
3828 CompletionEntry::Match(mat) => {
3829 if self.show_inline_completions_in_menu(cx) {
3830 self.discard_inline_completion(true, cx);
3831 }
3832 mat
3833 }
3834 };
3835
3836 let buffer_handle = completions_menu.buffer;
3837 let completion = completions_menu
3838 .completions
3839 .borrow()
3840 .get(mat.candidate_id)?
3841 .clone();
3842 cx.stop_propagation();
3843
3844 let snippet;
3845 let text;
3846
3847 if completion.is_snippet() {
3848 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3849 text = snippet.as_ref().unwrap().text.clone();
3850 } else {
3851 snippet = None;
3852 text = completion.new_text.clone();
3853 };
3854 let selections = self.selections.all::<usize>(cx);
3855 let buffer = buffer_handle.read(cx);
3856 let old_range = completion.old_range.to_offset(buffer);
3857 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3858
3859 let newest_selection = self.selections.newest_anchor();
3860 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3861 return None;
3862 }
3863
3864 let lookbehind = newest_selection
3865 .start
3866 .text_anchor
3867 .to_offset(buffer)
3868 .saturating_sub(old_range.start);
3869 let lookahead = old_range
3870 .end
3871 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3872 let mut common_prefix_len = old_text
3873 .bytes()
3874 .zip(text.bytes())
3875 .take_while(|(a, b)| a == b)
3876 .count();
3877
3878 let snapshot = self.buffer.read(cx).snapshot(cx);
3879 let mut range_to_replace: Option<Range<isize>> = None;
3880 let mut ranges = Vec::new();
3881 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3882 for selection in &selections {
3883 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3884 let start = selection.start.saturating_sub(lookbehind);
3885 let end = selection.end + lookahead;
3886 if selection.id == newest_selection.id {
3887 range_to_replace = Some(
3888 ((start + common_prefix_len) as isize - selection.start as isize)
3889 ..(end as isize - selection.start as isize),
3890 );
3891 }
3892 ranges.push(start + common_prefix_len..end);
3893 } else {
3894 common_prefix_len = 0;
3895 ranges.clear();
3896 ranges.extend(selections.iter().map(|s| {
3897 if s.id == newest_selection.id {
3898 range_to_replace = Some(
3899 old_range.start.to_offset_utf16(&snapshot).0 as isize
3900 - selection.start as isize
3901 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3902 - selection.start as isize,
3903 );
3904 old_range.clone()
3905 } else {
3906 s.start..s.end
3907 }
3908 }));
3909 break;
3910 }
3911 if !self.linked_edit_ranges.is_empty() {
3912 let start_anchor = snapshot.anchor_before(selection.head());
3913 let end_anchor = snapshot.anchor_after(selection.tail());
3914 if let Some(ranges) = self
3915 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
3916 {
3917 for (buffer, edits) in ranges {
3918 linked_edits.entry(buffer.clone()).or_default().extend(
3919 edits
3920 .into_iter()
3921 .map(|range| (range, text[common_prefix_len..].to_owned())),
3922 );
3923 }
3924 }
3925 }
3926 }
3927 let text = &text[common_prefix_len..];
3928
3929 cx.emit(EditorEvent::InputHandled {
3930 utf16_range_to_replace: range_to_replace,
3931 text: text.into(),
3932 });
3933
3934 self.transact(cx, |this, cx| {
3935 if let Some(mut snippet) = snippet {
3936 snippet.text = text.to_string();
3937 for tabstop in snippet
3938 .tabstops
3939 .iter_mut()
3940 .flat_map(|tabstop| tabstop.ranges.iter_mut())
3941 {
3942 tabstop.start -= common_prefix_len as isize;
3943 tabstop.end -= common_prefix_len as isize;
3944 }
3945
3946 this.insert_snippet(&ranges, snippet, cx).log_err();
3947 } else {
3948 this.buffer.update(cx, |buffer, cx| {
3949 buffer.edit(
3950 ranges.iter().map(|range| (range.clone(), text)),
3951 this.autoindent_mode.clone(),
3952 cx,
3953 );
3954 });
3955 }
3956 for (buffer, edits) in linked_edits {
3957 buffer.update(cx, |buffer, cx| {
3958 let snapshot = buffer.snapshot();
3959 let edits = edits
3960 .into_iter()
3961 .map(|(range, text)| {
3962 use text::ToPoint as TP;
3963 let end_point = TP::to_point(&range.end, &snapshot);
3964 let start_point = TP::to_point(&range.start, &snapshot);
3965 (start_point..end_point, text)
3966 })
3967 .sorted_by_key(|(range, _)| range.start)
3968 .collect::<Vec<_>>();
3969 buffer.edit(edits, None, cx);
3970 })
3971 }
3972
3973 this.refresh_inline_completion(true, false, cx);
3974 });
3975
3976 let show_new_completions_on_confirm = completion
3977 .confirm
3978 .as_ref()
3979 .map_or(false, |confirm| confirm(intent, cx));
3980 if show_new_completions_on_confirm {
3981 self.show_completions(&ShowCompletions { trigger: None }, cx);
3982 }
3983
3984 let provider = self.completion_provider.as_ref()?;
3985 drop(completion);
3986 let apply_edits = provider.apply_additional_edits_for_completion(
3987 buffer_handle,
3988 completions_menu.completions.clone(),
3989 mat.candidate_id,
3990 true,
3991 cx,
3992 );
3993
3994 let editor_settings = EditorSettings::get_global(cx);
3995 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
3996 // After the code completion is finished, users often want to know what signatures are needed.
3997 // so we should automatically call signature_help
3998 self.show_signature_help(&ShowSignatureHelp, cx);
3999 }
4000
4001 Some(cx.foreground_executor().spawn(async move {
4002 apply_edits.await?;
4003 Ok(())
4004 }))
4005 }
4006
4007 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4008 let mut context_menu = self.context_menu.borrow_mut();
4009 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4010 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4011 // Toggle if we're selecting the same one
4012 *context_menu = None;
4013 cx.notify();
4014 return;
4015 } else {
4016 // Otherwise, clear it and start a new one
4017 *context_menu = None;
4018 cx.notify();
4019 }
4020 }
4021 drop(context_menu);
4022 let snapshot = self.snapshot(cx);
4023 let deployed_from_indicator = action.deployed_from_indicator;
4024 let mut task = self.code_actions_task.take();
4025 let action = action.clone();
4026 cx.spawn(|editor, mut cx| async move {
4027 while let Some(prev_task) = task {
4028 prev_task.await.log_err();
4029 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4030 }
4031
4032 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4033 if editor.focus_handle.is_focused(cx) {
4034 let multibuffer_point = action
4035 .deployed_from_indicator
4036 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4037 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4038 let (buffer, buffer_row) = snapshot
4039 .buffer_snapshot
4040 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4041 .and_then(|(buffer_snapshot, range)| {
4042 editor
4043 .buffer
4044 .read(cx)
4045 .buffer(buffer_snapshot.remote_id())
4046 .map(|buffer| (buffer, range.start.row))
4047 })?;
4048 let (_, code_actions) = editor
4049 .available_code_actions
4050 .clone()
4051 .and_then(|(location, code_actions)| {
4052 let snapshot = location.buffer.read(cx).snapshot();
4053 let point_range = location.range.to_point(&snapshot);
4054 let point_range = point_range.start.row..=point_range.end.row;
4055 if point_range.contains(&buffer_row) {
4056 Some((location, code_actions))
4057 } else {
4058 None
4059 }
4060 })
4061 .unzip();
4062 let buffer_id = buffer.read(cx).remote_id();
4063 let tasks = editor
4064 .tasks
4065 .get(&(buffer_id, buffer_row))
4066 .map(|t| Arc::new(t.to_owned()));
4067 if tasks.is_none() && code_actions.is_none() {
4068 return None;
4069 }
4070
4071 editor.completion_tasks.clear();
4072 editor.discard_inline_completion(false, cx);
4073 let task_context =
4074 tasks
4075 .as_ref()
4076 .zip(editor.project.clone())
4077 .map(|(tasks, project)| {
4078 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4079 });
4080
4081 Some(cx.spawn(|editor, mut cx| async move {
4082 let task_context = match task_context {
4083 Some(task_context) => task_context.await,
4084 None => None,
4085 };
4086 let resolved_tasks =
4087 tasks.zip(task_context).map(|(tasks, task_context)| {
4088 Rc::new(ResolvedTasks {
4089 templates: tasks.resolve(&task_context).collect(),
4090 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4091 multibuffer_point.row,
4092 tasks.column,
4093 )),
4094 })
4095 });
4096 let spawn_straight_away = resolved_tasks
4097 .as_ref()
4098 .map_or(false, |tasks| tasks.templates.len() == 1)
4099 && code_actions
4100 .as_ref()
4101 .map_or(true, |actions| actions.is_empty());
4102 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4103 *editor.context_menu.borrow_mut() =
4104 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4105 buffer,
4106 actions: CodeActionContents {
4107 tasks: resolved_tasks,
4108 actions: code_actions,
4109 },
4110 selected_item: Default::default(),
4111 scroll_handle: UniformListScrollHandle::default(),
4112 deployed_from_indicator,
4113 }));
4114 if spawn_straight_away {
4115 if let Some(task) = editor.confirm_code_action(
4116 &ConfirmCodeAction { item_ix: Some(0) },
4117 cx,
4118 ) {
4119 cx.notify();
4120 return task;
4121 }
4122 }
4123 cx.notify();
4124 Task::ready(Ok(()))
4125 }) {
4126 task.await
4127 } else {
4128 Ok(())
4129 }
4130 }))
4131 } else {
4132 Some(Task::ready(Ok(())))
4133 }
4134 })?;
4135 if let Some(task) = spawned_test_task {
4136 task.await?;
4137 }
4138
4139 Ok::<_, anyhow::Error>(())
4140 })
4141 .detach_and_log_err(cx);
4142 }
4143
4144 pub fn confirm_code_action(
4145 &mut self,
4146 action: &ConfirmCodeAction,
4147 cx: &mut ViewContext<Self>,
4148 ) -> Option<Task<Result<()>>> {
4149 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4150 menu
4151 } else {
4152 return None;
4153 };
4154 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4155 let action = actions_menu.actions.get(action_ix)?;
4156 let title = action.label();
4157 let buffer = actions_menu.buffer;
4158 let workspace = self.workspace()?;
4159
4160 match action {
4161 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4162 workspace.update(cx, |workspace, cx| {
4163 workspace::tasks::schedule_resolved_task(
4164 workspace,
4165 task_source_kind,
4166 resolved_task,
4167 false,
4168 cx,
4169 );
4170
4171 Some(Task::ready(Ok(())))
4172 })
4173 }
4174 CodeActionsItem::CodeAction {
4175 excerpt_id,
4176 action,
4177 provider,
4178 } => {
4179 let apply_code_action =
4180 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4181 let workspace = workspace.downgrade();
4182 Some(cx.spawn(|editor, cx| async move {
4183 let project_transaction = apply_code_action.await?;
4184 Self::open_project_transaction(
4185 &editor,
4186 workspace,
4187 project_transaction,
4188 title,
4189 cx,
4190 )
4191 .await
4192 }))
4193 }
4194 }
4195 }
4196
4197 pub async fn open_project_transaction(
4198 this: &WeakView<Editor>,
4199 workspace: WeakView<Workspace>,
4200 transaction: ProjectTransaction,
4201 title: String,
4202 mut cx: AsyncWindowContext,
4203 ) -> Result<()> {
4204 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4205 cx.update(|cx| {
4206 entries.sort_unstable_by_key(|(buffer, _)| {
4207 buffer.read(cx).file().map(|f| f.path().clone())
4208 });
4209 })?;
4210
4211 // If the project transaction's edits are all contained within this editor, then
4212 // avoid opening a new editor to display them.
4213
4214 if let Some((buffer, transaction)) = entries.first() {
4215 if entries.len() == 1 {
4216 let excerpt = this.update(&mut cx, |editor, cx| {
4217 editor
4218 .buffer()
4219 .read(cx)
4220 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4221 })?;
4222 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4223 if excerpted_buffer == *buffer {
4224 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4225 let excerpt_range = excerpt_range.to_offset(buffer);
4226 buffer
4227 .edited_ranges_for_transaction::<usize>(transaction)
4228 .all(|range| {
4229 excerpt_range.start <= range.start
4230 && excerpt_range.end >= range.end
4231 })
4232 })?;
4233
4234 if all_edits_within_excerpt {
4235 return Ok(());
4236 }
4237 }
4238 }
4239 }
4240 } else {
4241 return Ok(());
4242 }
4243
4244 let mut ranges_to_highlight = Vec::new();
4245 let excerpt_buffer = cx.new_model(|cx| {
4246 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4247 for (buffer_handle, transaction) in &entries {
4248 let buffer = buffer_handle.read(cx);
4249 ranges_to_highlight.extend(
4250 multibuffer.push_excerpts_with_context_lines(
4251 buffer_handle.clone(),
4252 buffer
4253 .edited_ranges_for_transaction::<usize>(transaction)
4254 .collect(),
4255 DEFAULT_MULTIBUFFER_CONTEXT,
4256 cx,
4257 ),
4258 );
4259 }
4260 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4261 multibuffer
4262 })?;
4263
4264 workspace.update(&mut cx, |workspace, cx| {
4265 let project = workspace.project().clone();
4266 let editor =
4267 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4268 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4269 editor.update(cx, |editor, cx| {
4270 editor.highlight_background::<Self>(
4271 &ranges_to_highlight,
4272 |theme| theme.editor_highlighted_line_background,
4273 cx,
4274 );
4275 });
4276 })?;
4277
4278 Ok(())
4279 }
4280
4281 pub fn clear_code_action_providers(&mut self) {
4282 self.code_action_providers.clear();
4283 self.available_code_actions.take();
4284 }
4285
4286 pub fn push_code_action_provider(
4287 &mut self,
4288 provider: Rc<dyn CodeActionProvider>,
4289 cx: &mut ViewContext<Self>,
4290 ) {
4291 self.code_action_providers.push(provider);
4292 self.refresh_code_actions(cx);
4293 }
4294
4295 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4296 let buffer = self.buffer.read(cx);
4297 let newest_selection = self.selections.newest_anchor().clone();
4298 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4299 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4300 if start_buffer != end_buffer {
4301 return None;
4302 }
4303
4304 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4305 cx.background_executor()
4306 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4307 .await;
4308
4309 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4310 let providers = this.code_action_providers.clone();
4311 let tasks = this
4312 .code_action_providers
4313 .iter()
4314 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4315 .collect::<Vec<_>>();
4316 (providers, tasks)
4317 })?;
4318
4319 let mut actions = Vec::new();
4320 for (provider, provider_actions) in
4321 providers.into_iter().zip(future::join_all(tasks).await)
4322 {
4323 if let Some(provider_actions) = provider_actions.log_err() {
4324 actions.extend(provider_actions.into_iter().map(|action| {
4325 AvailableCodeAction {
4326 excerpt_id: newest_selection.start.excerpt_id,
4327 action,
4328 provider: provider.clone(),
4329 }
4330 }));
4331 }
4332 }
4333
4334 this.update(&mut cx, |this, cx| {
4335 this.available_code_actions = if actions.is_empty() {
4336 None
4337 } else {
4338 Some((
4339 Location {
4340 buffer: start_buffer,
4341 range: start..end,
4342 },
4343 actions.into(),
4344 ))
4345 };
4346 cx.notify();
4347 })
4348 }));
4349 None
4350 }
4351
4352 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4353 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4354 self.show_git_blame_inline = false;
4355
4356 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4357 cx.background_executor().timer(delay).await;
4358
4359 this.update(&mut cx, |this, cx| {
4360 this.show_git_blame_inline = true;
4361 cx.notify();
4362 })
4363 .log_err();
4364 }));
4365 }
4366 }
4367
4368 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4369 if self.pending_rename.is_some() {
4370 return None;
4371 }
4372
4373 let provider = self.semantics_provider.clone()?;
4374 let buffer = self.buffer.read(cx);
4375 let newest_selection = self.selections.newest_anchor().clone();
4376 let cursor_position = newest_selection.head();
4377 let (cursor_buffer, cursor_buffer_position) =
4378 buffer.text_anchor_for_position(cursor_position, cx)?;
4379 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4380 if cursor_buffer != tail_buffer {
4381 return None;
4382 }
4383 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4384 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4385 cx.background_executor()
4386 .timer(Duration::from_millis(debounce))
4387 .await;
4388
4389 let highlights = if let Some(highlights) = cx
4390 .update(|cx| {
4391 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4392 })
4393 .ok()
4394 .flatten()
4395 {
4396 highlights.await.log_err()
4397 } else {
4398 None
4399 };
4400
4401 if let Some(highlights) = highlights {
4402 this.update(&mut cx, |this, cx| {
4403 if this.pending_rename.is_some() {
4404 return;
4405 }
4406
4407 let buffer_id = cursor_position.buffer_id;
4408 let buffer = this.buffer.read(cx);
4409 if !buffer
4410 .text_anchor_for_position(cursor_position, cx)
4411 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4412 {
4413 return;
4414 }
4415
4416 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4417 let mut write_ranges = Vec::new();
4418 let mut read_ranges = Vec::new();
4419 for highlight in highlights {
4420 for (excerpt_id, excerpt_range) in
4421 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4422 {
4423 let start = highlight
4424 .range
4425 .start
4426 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4427 let end = highlight
4428 .range
4429 .end
4430 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4431 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4432 continue;
4433 }
4434
4435 let range = Anchor {
4436 buffer_id,
4437 excerpt_id,
4438 text_anchor: start,
4439 }..Anchor {
4440 buffer_id,
4441 excerpt_id,
4442 text_anchor: end,
4443 };
4444 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4445 write_ranges.push(range);
4446 } else {
4447 read_ranges.push(range);
4448 }
4449 }
4450 }
4451
4452 this.highlight_background::<DocumentHighlightRead>(
4453 &read_ranges,
4454 |theme| theme.editor_document_highlight_read_background,
4455 cx,
4456 );
4457 this.highlight_background::<DocumentHighlightWrite>(
4458 &write_ranges,
4459 |theme| theme.editor_document_highlight_write_background,
4460 cx,
4461 );
4462 cx.notify();
4463 })
4464 .log_err();
4465 }
4466 }));
4467 None
4468 }
4469
4470 pub fn refresh_inline_completion(
4471 &mut self,
4472 debounce: bool,
4473 user_requested: bool,
4474 cx: &mut ViewContext<Self>,
4475 ) -> Option<()> {
4476 let provider = self.inline_completion_provider()?;
4477 let cursor = self.selections.newest_anchor().head();
4478 let (buffer, cursor_buffer_position) =
4479 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4480
4481 if !user_requested
4482 && (!self.enable_inline_completions
4483 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4484 || !self.is_focused(cx))
4485 {
4486 self.discard_inline_completion(false, cx);
4487 return None;
4488 }
4489
4490 self.update_visible_inline_completion(cx);
4491 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4492 Some(())
4493 }
4494
4495 fn cycle_inline_completion(
4496 &mut self,
4497 direction: Direction,
4498 cx: &mut ViewContext<Self>,
4499 ) -> Option<()> {
4500 let provider = self.inline_completion_provider()?;
4501 let cursor = self.selections.newest_anchor().head();
4502 let (buffer, cursor_buffer_position) =
4503 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4504 if !self.enable_inline_completions
4505 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4506 {
4507 return None;
4508 }
4509
4510 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4511 self.update_visible_inline_completion(cx);
4512
4513 Some(())
4514 }
4515
4516 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4517 if !self.has_active_inline_completion() {
4518 self.refresh_inline_completion(false, true, cx);
4519 return;
4520 }
4521
4522 self.update_visible_inline_completion(cx);
4523 }
4524
4525 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4526 self.show_cursor_names(cx);
4527 }
4528
4529 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4530 self.show_cursor_names = true;
4531 cx.notify();
4532 cx.spawn(|this, mut cx| async move {
4533 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4534 this.update(&mut cx, |this, cx| {
4535 this.show_cursor_names = false;
4536 cx.notify()
4537 })
4538 .ok()
4539 })
4540 .detach();
4541 }
4542
4543 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4544 if self.has_active_inline_completion() {
4545 self.cycle_inline_completion(Direction::Next, cx);
4546 } else {
4547 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4548 if is_copilot_disabled {
4549 cx.propagate();
4550 }
4551 }
4552 }
4553
4554 pub fn previous_inline_completion(
4555 &mut self,
4556 _: &PreviousInlineCompletion,
4557 cx: &mut ViewContext<Self>,
4558 ) {
4559 if self.has_active_inline_completion() {
4560 self.cycle_inline_completion(Direction::Prev, cx);
4561 } else {
4562 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4563 if is_copilot_disabled {
4564 cx.propagate();
4565 }
4566 }
4567 }
4568
4569 pub fn accept_inline_completion(
4570 &mut self,
4571 _: &AcceptInlineCompletion,
4572 cx: &mut ViewContext<Self>,
4573 ) {
4574 if self.show_inline_completions_in_menu(cx) {
4575 self.hide_context_menu(cx);
4576 }
4577
4578 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4579 return;
4580 };
4581
4582 self.report_inline_completion_event(true, cx);
4583
4584 match &active_inline_completion.completion {
4585 InlineCompletion::Move(position) => {
4586 let position = *position;
4587 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4588 selections.select_anchor_ranges([position..position]);
4589 });
4590 }
4591 InlineCompletion::Edit(edits) => {
4592 if let Some(provider) = self.inline_completion_provider() {
4593 provider.accept(cx);
4594 }
4595
4596 let snapshot = self.buffer.read(cx).snapshot(cx);
4597 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4598
4599 self.buffer.update(cx, |buffer, cx| {
4600 buffer.edit(edits.iter().cloned(), None, cx)
4601 });
4602
4603 self.change_selections(None, cx, |s| {
4604 s.select_anchor_ranges([last_edit_end..last_edit_end])
4605 });
4606
4607 self.update_visible_inline_completion(cx);
4608 if self.active_inline_completion.is_none() {
4609 self.refresh_inline_completion(true, true, cx);
4610 }
4611
4612 cx.notify();
4613 }
4614 }
4615 }
4616
4617 pub fn accept_partial_inline_completion(
4618 &mut self,
4619 _: &AcceptPartialInlineCompletion,
4620 cx: &mut ViewContext<Self>,
4621 ) {
4622 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4623 return;
4624 };
4625 if self.selections.count() != 1 {
4626 return;
4627 }
4628
4629 self.report_inline_completion_event(true, cx);
4630
4631 match &active_inline_completion.completion {
4632 InlineCompletion::Move(position) => {
4633 let position = *position;
4634 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4635 selections.select_anchor_ranges([position..position]);
4636 });
4637 }
4638 InlineCompletion::Edit(edits) => {
4639 if edits.len() == 1 && edits[0].0.start == edits[0].0.end {
4640 let text = edits[0].1.as_str();
4641 let mut partial_completion = text
4642 .chars()
4643 .by_ref()
4644 .take_while(|c| c.is_alphabetic())
4645 .collect::<String>();
4646 if partial_completion.is_empty() {
4647 partial_completion = text
4648 .chars()
4649 .by_ref()
4650 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4651 .collect::<String>();
4652 }
4653
4654 cx.emit(EditorEvent::InputHandled {
4655 utf16_range_to_replace: None,
4656 text: partial_completion.clone().into(),
4657 });
4658
4659 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4660
4661 self.refresh_inline_completion(true, true, cx);
4662 cx.notify();
4663 }
4664 }
4665 }
4666 }
4667
4668 fn discard_inline_completion(
4669 &mut self,
4670 should_report_inline_completion_event: bool,
4671 cx: &mut ViewContext<Self>,
4672 ) -> bool {
4673 if should_report_inline_completion_event {
4674 self.report_inline_completion_event(false, cx);
4675 }
4676
4677 if let Some(provider) = self.inline_completion_provider() {
4678 provider.discard(cx);
4679 }
4680
4681 self.take_active_inline_completion(cx).is_some()
4682 }
4683
4684 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4685 let Some(provider) = self.inline_completion_provider() else {
4686 return;
4687 };
4688 let Some(project) = self.project.as_ref() else {
4689 return;
4690 };
4691 let Some((_, buffer, _)) = self
4692 .buffer
4693 .read(cx)
4694 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4695 else {
4696 return;
4697 };
4698
4699 let project = project.read(cx);
4700 let extension = buffer
4701 .read(cx)
4702 .file()
4703 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4704 project.client().telemetry().report_inline_completion_event(
4705 provider.name().into(),
4706 accepted,
4707 extension,
4708 );
4709 }
4710
4711 pub fn has_active_inline_completion(&self) -> bool {
4712 self.active_inline_completion.is_some()
4713 }
4714
4715 fn take_active_inline_completion(
4716 &mut self,
4717 cx: &mut ViewContext<Self>,
4718 ) -> Option<InlineCompletion> {
4719 let active_inline_completion = self.active_inline_completion.take()?;
4720 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4721 self.clear_highlights::<InlineCompletionHighlight>(cx);
4722 Some(active_inline_completion.completion)
4723 }
4724
4725 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4726 let selection = self.selections.newest_anchor();
4727 let cursor = selection.head();
4728 let multibuffer = self.buffer.read(cx).snapshot(cx);
4729 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4730 let excerpt_id = cursor.excerpt_id;
4731
4732 let completions_menu_has_precedence = !self.show_inline_completions_in_menu(cx)
4733 && (self.context_menu.borrow().is_some()
4734 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion()));
4735 if completions_menu_has_precedence
4736 || !offset_selection.is_empty()
4737 || self
4738 .active_inline_completion
4739 .as_ref()
4740 .map_or(false, |completion| {
4741 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4742 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4743 !invalidation_range.contains(&offset_selection.head())
4744 })
4745 {
4746 self.discard_inline_completion(false, cx);
4747 return None;
4748 }
4749
4750 self.take_active_inline_completion(cx);
4751 let provider = self.inline_completion_provider()?;
4752
4753 let (buffer, cursor_buffer_position) =
4754 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4755
4756 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4757 let edits = completion
4758 .edits
4759 .into_iter()
4760 .flat_map(|(range, new_text)| {
4761 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
4762 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
4763 Some((start..end, new_text))
4764 })
4765 .collect::<Vec<_>>();
4766 if edits.is_empty() {
4767 return None;
4768 }
4769
4770 let first_edit_start = edits.first().unwrap().0.start;
4771 let edit_start_row = first_edit_start
4772 .to_point(&multibuffer)
4773 .row
4774 .saturating_sub(2);
4775
4776 let last_edit_end = edits.last().unwrap().0.end;
4777 let edit_end_row = cmp::min(
4778 multibuffer.max_point().row,
4779 last_edit_end.to_point(&multibuffer).row + 2,
4780 );
4781
4782 let cursor_row = cursor.to_point(&multibuffer).row;
4783
4784 let mut inlay_ids = Vec::new();
4785 let invalidation_row_range;
4786 let completion;
4787 if cursor_row < edit_start_row {
4788 invalidation_row_range = cursor_row..edit_end_row;
4789 completion = InlineCompletion::Move(first_edit_start);
4790 } else if cursor_row > edit_end_row {
4791 invalidation_row_range = edit_start_row..cursor_row;
4792 completion = InlineCompletion::Move(first_edit_start);
4793 } else {
4794 if edits
4795 .iter()
4796 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4797 {
4798 let mut inlays = Vec::new();
4799 for (range, new_text) in &edits {
4800 let inlay = Inlay::inline_completion(
4801 post_inc(&mut self.next_inlay_id),
4802 range.start,
4803 new_text.as_str(),
4804 );
4805 inlay_ids.push(inlay.id);
4806 inlays.push(inlay);
4807 }
4808
4809 self.splice_inlays(vec![], inlays, cx);
4810 } else {
4811 let background_color = cx.theme().status().deleted_background;
4812 self.highlight_text::<InlineCompletionHighlight>(
4813 edits.iter().map(|(range, _)| range.clone()).collect(),
4814 HighlightStyle {
4815 background_color: Some(background_color),
4816 ..Default::default()
4817 },
4818 cx,
4819 );
4820 }
4821
4822 invalidation_row_range = edit_start_row..edit_end_row;
4823 completion = InlineCompletion::Edit(edits);
4824 };
4825
4826 let invalidation_range = multibuffer
4827 .anchor_before(Point::new(invalidation_row_range.start, 0))
4828 ..multibuffer.anchor_after(Point::new(
4829 invalidation_row_range.end,
4830 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4831 ));
4832
4833 self.active_inline_completion = Some(InlineCompletionState {
4834 inlay_ids,
4835 completion,
4836 invalidation_range,
4837 });
4838
4839 if self.show_inline_completions_in_menu(cx) && self.has_active_completions_menu() {
4840 if let Some(hint) = self.inline_completion_menu_hint(cx) {
4841 match self.context_menu.borrow_mut().as_mut() {
4842 Some(CodeContextMenu::Completions(menu)) => {
4843 menu.show_inline_completion_hint(hint);
4844 }
4845 _ => {}
4846 }
4847 }
4848 }
4849
4850 cx.notify();
4851
4852 Some(())
4853 }
4854
4855 fn inline_completion_menu_hint(
4856 &mut self,
4857 cx: &mut ViewContext<Self>,
4858 ) -> Option<InlineCompletionMenuHint> {
4859 if self.has_active_inline_completion() {
4860 let provider_name = self.inline_completion_provider()?.display_name();
4861 let editor_snapshot = self.snapshot(cx);
4862
4863 let text = match &self.active_inline_completion.as_ref()?.completion {
4864 InlineCompletion::Edit(edits) => {
4865 inline_completion_edit_text(&editor_snapshot, edits, true, cx)
4866 }
4867 InlineCompletion::Move(target) => {
4868 let target_point =
4869 target.to_point(&editor_snapshot.display_snapshot.buffer_snapshot);
4870 let target_line = target_point.row + 1;
4871 InlineCompletionText::Move(
4872 format!("Jump to edit in line {}", target_line).into(),
4873 )
4874 }
4875 };
4876
4877 Some(InlineCompletionMenuHint {
4878 provider_name,
4879 text,
4880 })
4881 } else {
4882 None
4883 }
4884 }
4885
4886 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4887 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4888 }
4889
4890 fn show_inline_completions_in_menu(&self, cx: &AppContext) -> bool {
4891 EditorSettings::get_global(cx).show_inline_completions_in_menu
4892 && self
4893 .inline_completion_provider()
4894 .map_or(false, |provider| provider.show_completions_in_menu())
4895 }
4896
4897 fn render_code_actions_indicator(
4898 &self,
4899 _style: &EditorStyle,
4900 row: DisplayRow,
4901 is_active: bool,
4902 cx: &mut ViewContext<Self>,
4903 ) -> Option<IconButton> {
4904 if self.available_code_actions.is_some() {
4905 Some(
4906 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4907 .shape(ui::IconButtonShape::Square)
4908 .icon_size(IconSize::XSmall)
4909 .icon_color(Color::Muted)
4910 .toggle_state(is_active)
4911 .tooltip({
4912 let focus_handle = self.focus_handle.clone();
4913 move |cx| {
4914 Tooltip::for_action_in(
4915 "Toggle Code Actions",
4916 &ToggleCodeActions {
4917 deployed_from_indicator: None,
4918 },
4919 &focus_handle,
4920 cx,
4921 )
4922 }
4923 })
4924 .on_click(cx.listener(move |editor, _e, cx| {
4925 editor.focus(cx);
4926 editor.toggle_code_actions(
4927 &ToggleCodeActions {
4928 deployed_from_indicator: Some(row),
4929 },
4930 cx,
4931 );
4932 })),
4933 )
4934 } else {
4935 None
4936 }
4937 }
4938
4939 fn clear_tasks(&mut self) {
4940 self.tasks.clear()
4941 }
4942
4943 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4944 if self.tasks.insert(key, value).is_some() {
4945 // This case should hopefully be rare, but just in case...
4946 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4947 }
4948 }
4949
4950 fn build_tasks_context(
4951 project: &Model<Project>,
4952 buffer: &Model<Buffer>,
4953 buffer_row: u32,
4954 tasks: &Arc<RunnableTasks>,
4955 cx: &mut ViewContext<Self>,
4956 ) -> Task<Option<task::TaskContext>> {
4957 let position = Point::new(buffer_row, tasks.column);
4958 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4959 let location = Location {
4960 buffer: buffer.clone(),
4961 range: range_start..range_start,
4962 };
4963 // Fill in the environmental variables from the tree-sitter captures
4964 let mut captured_task_variables = TaskVariables::default();
4965 for (capture_name, value) in tasks.extra_variables.clone() {
4966 captured_task_variables.insert(
4967 task::VariableName::Custom(capture_name.into()),
4968 value.clone(),
4969 );
4970 }
4971 project.update(cx, |project, cx| {
4972 project.task_store().update(cx, |task_store, cx| {
4973 task_store.task_context_for_location(captured_task_variables, location, cx)
4974 })
4975 })
4976 }
4977
4978 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
4979 let Some((workspace, _)) = self.workspace.clone() else {
4980 return;
4981 };
4982 let Some(project) = self.project.clone() else {
4983 return;
4984 };
4985
4986 // Try to find a closest, enclosing node using tree-sitter that has a
4987 // task
4988 let Some((buffer, buffer_row, tasks)) = self
4989 .find_enclosing_node_task(cx)
4990 // Or find the task that's closest in row-distance.
4991 .or_else(|| self.find_closest_task(cx))
4992 else {
4993 return;
4994 };
4995
4996 let reveal_strategy = action.reveal;
4997 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
4998 cx.spawn(|_, mut cx| async move {
4999 let context = task_context.await?;
5000 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5001
5002 let resolved = resolved_task.resolved.as_mut()?;
5003 resolved.reveal = reveal_strategy;
5004
5005 workspace
5006 .update(&mut cx, |workspace, cx| {
5007 workspace::tasks::schedule_resolved_task(
5008 workspace,
5009 task_source_kind,
5010 resolved_task,
5011 false,
5012 cx,
5013 );
5014 })
5015 .ok()
5016 })
5017 .detach();
5018 }
5019
5020 fn find_closest_task(
5021 &mut self,
5022 cx: &mut ViewContext<Self>,
5023 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5024 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5025
5026 let ((buffer_id, row), tasks) = self
5027 .tasks
5028 .iter()
5029 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5030
5031 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5032 let tasks = Arc::new(tasks.to_owned());
5033 Some((buffer, *row, tasks))
5034 }
5035
5036 fn find_enclosing_node_task(
5037 &mut self,
5038 cx: &mut ViewContext<Self>,
5039 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5040 let snapshot = self.buffer.read(cx).snapshot(cx);
5041 let offset = self.selections.newest::<usize>(cx).head();
5042 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5043 let buffer_id = excerpt.buffer().remote_id();
5044
5045 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5046 let mut cursor = layer.node().walk();
5047
5048 while cursor.goto_first_child_for_byte(offset).is_some() {
5049 if cursor.node().end_byte() == offset {
5050 cursor.goto_next_sibling();
5051 }
5052 }
5053
5054 // Ascend to the smallest ancestor that contains the range and has a task.
5055 loop {
5056 let node = cursor.node();
5057 let node_range = node.byte_range();
5058 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5059
5060 // Check if this node contains our offset
5061 if node_range.start <= offset && node_range.end >= offset {
5062 // If it contains offset, check for task
5063 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5064 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5065 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5066 }
5067 }
5068
5069 if !cursor.goto_parent() {
5070 break;
5071 }
5072 }
5073 None
5074 }
5075
5076 fn render_run_indicator(
5077 &self,
5078 _style: &EditorStyle,
5079 is_active: bool,
5080 row: DisplayRow,
5081 cx: &mut ViewContext<Self>,
5082 ) -> IconButton {
5083 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5084 .shape(ui::IconButtonShape::Square)
5085 .icon_size(IconSize::XSmall)
5086 .icon_color(Color::Muted)
5087 .toggle_state(is_active)
5088 .on_click(cx.listener(move |editor, _e, cx| {
5089 editor.focus(cx);
5090 editor.toggle_code_actions(
5091 &ToggleCodeActions {
5092 deployed_from_indicator: Some(row),
5093 },
5094 cx,
5095 );
5096 }))
5097 }
5098
5099 #[cfg(any(feature = "test-support", test))]
5100 pub fn context_menu_visible(&self) -> bool {
5101 self.context_menu
5102 .borrow()
5103 .as_ref()
5104 .map_or(false, |menu| menu.visible())
5105 }
5106
5107 #[cfg(feature = "test-support")]
5108 pub fn context_menu_contains_inline_completion(&self) -> bool {
5109 self.context_menu
5110 .borrow()
5111 .as_ref()
5112 .map_or(false, |menu| match menu {
5113 CodeContextMenu::Completions(menu) => menu.entries.first().map_or(false, |entry| {
5114 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5115 }),
5116 CodeContextMenu::CodeActions(_) => false,
5117 })
5118 }
5119
5120 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5121 self.context_menu
5122 .borrow()
5123 .as_ref()
5124 .map(|menu| menu.origin(cursor_position))
5125 }
5126
5127 fn render_context_menu(
5128 &self,
5129 style: &EditorStyle,
5130 max_height_in_lines: u32,
5131 cx: &mut ViewContext<Editor>,
5132 ) -> Option<AnyElement> {
5133 self.context_menu.borrow().as_ref().and_then(|menu| {
5134 if menu.visible() {
5135 Some(menu.render(style, max_height_in_lines, cx))
5136 } else {
5137 None
5138 }
5139 })
5140 }
5141
5142 fn render_context_menu_aside(
5143 &self,
5144 style: &EditorStyle,
5145 max_size: Size<Pixels>,
5146 cx: &mut ViewContext<Editor>,
5147 ) -> Option<AnyElement> {
5148 self.context_menu.borrow().as_ref().and_then(|menu| {
5149 if menu.visible() {
5150 menu.render_aside(
5151 style,
5152 max_size,
5153 self.workspace.as_ref().map(|(w, _)| w.clone()),
5154 cx,
5155 )
5156 } else {
5157 None
5158 }
5159 })
5160 }
5161
5162 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5163 cx.notify();
5164 self.completion_tasks.clear();
5165 let context_menu = self.context_menu.borrow_mut().take();
5166 if context_menu.is_some() && !self.show_inline_completions_in_menu(cx) {
5167 self.update_visible_inline_completion(cx);
5168 }
5169 context_menu
5170 }
5171
5172 fn show_snippet_choices(
5173 &mut self,
5174 choices: &Vec<String>,
5175 selection: Range<Anchor>,
5176 cx: &mut ViewContext<Self>,
5177 ) {
5178 if selection.start.buffer_id.is_none() {
5179 return;
5180 }
5181 let buffer_id = selection.start.buffer_id.unwrap();
5182 let buffer = self.buffer().read(cx).buffer(buffer_id);
5183 let id = post_inc(&mut self.next_completion_id);
5184
5185 if let Some(buffer) = buffer {
5186 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5187 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5188 ));
5189 }
5190 }
5191
5192 pub fn insert_snippet(
5193 &mut self,
5194 insertion_ranges: &[Range<usize>],
5195 snippet: Snippet,
5196 cx: &mut ViewContext<Self>,
5197 ) -> Result<()> {
5198 struct Tabstop<T> {
5199 is_end_tabstop: bool,
5200 ranges: Vec<Range<T>>,
5201 choices: Option<Vec<String>>,
5202 }
5203
5204 let tabstops = self.buffer.update(cx, |buffer, cx| {
5205 let snippet_text: Arc<str> = snippet.text.clone().into();
5206 buffer.edit(
5207 insertion_ranges
5208 .iter()
5209 .cloned()
5210 .map(|range| (range, snippet_text.clone())),
5211 Some(AutoindentMode::EachLine),
5212 cx,
5213 );
5214
5215 let snapshot = &*buffer.read(cx);
5216 let snippet = &snippet;
5217 snippet
5218 .tabstops
5219 .iter()
5220 .map(|tabstop| {
5221 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5222 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5223 });
5224 let mut tabstop_ranges = tabstop
5225 .ranges
5226 .iter()
5227 .flat_map(|tabstop_range| {
5228 let mut delta = 0_isize;
5229 insertion_ranges.iter().map(move |insertion_range| {
5230 let insertion_start = insertion_range.start as isize + delta;
5231 delta +=
5232 snippet.text.len() as isize - insertion_range.len() as isize;
5233
5234 let start = ((insertion_start + tabstop_range.start) as usize)
5235 .min(snapshot.len());
5236 let end = ((insertion_start + tabstop_range.end) as usize)
5237 .min(snapshot.len());
5238 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5239 })
5240 })
5241 .collect::<Vec<_>>();
5242 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5243
5244 Tabstop {
5245 is_end_tabstop,
5246 ranges: tabstop_ranges,
5247 choices: tabstop.choices.clone(),
5248 }
5249 })
5250 .collect::<Vec<_>>()
5251 });
5252 if let Some(tabstop) = tabstops.first() {
5253 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5254 s.select_ranges(tabstop.ranges.iter().cloned());
5255 });
5256
5257 if let Some(choices) = &tabstop.choices {
5258 if let Some(selection) = tabstop.ranges.first() {
5259 self.show_snippet_choices(choices, selection.clone(), cx)
5260 }
5261 }
5262
5263 // If we're already at the last tabstop and it's at the end of the snippet,
5264 // we're done, we don't need to keep the state around.
5265 if !tabstop.is_end_tabstop {
5266 let choices = tabstops
5267 .iter()
5268 .map(|tabstop| tabstop.choices.clone())
5269 .collect();
5270
5271 let ranges = tabstops
5272 .into_iter()
5273 .map(|tabstop| tabstop.ranges)
5274 .collect::<Vec<_>>();
5275
5276 self.snippet_stack.push(SnippetState {
5277 active_index: 0,
5278 ranges,
5279 choices,
5280 });
5281 }
5282
5283 // Check whether the just-entered snippet ends with an auto-closable bracket.
5284 if self.autoclose_regions.is_empty() {
5285 let snapshot = self.buffer.read(cx).snapshot(cx);
5286 for selection in &mut self.selections.all::<Point>(cx) {
5287 let selection_head = selection.head();
5288 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5289 continue;
5290 };
5291
5292 let mut bracket_pair = None;
5293 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5294 let prev_chars = snapshot
5295 .reversed_chars_at(selection_head)
5296 .collect::<String>();
5297 for (pair, enabled) in scope.brackets() {
5298 if enabled
5299 && pair.close
5300 && prev_chars.starts_with(pair.start.as_str())
5301 && next_chars.starts_with(pair.end.as_str())
5302 {
5303 bracket_pair = Some(pair.clone());
5304 break;
5305 }
5306 }
5307 if let Some(pair) = bracket_pair {
5308 let start = snapshot.anchor_after(selection_head);
5309 let end = snapshot.anchor_after(selection_head);
5310 self.autoclose_regions.push(AutocloseRegion {
5311 selection_id: selection.id,
5312 range: start..end,
5313 pair,
5314 });
5315 }
5316 }
5317 }
5318 }
5319 Ok(())
5320 }
5321
5322 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5323 self.move_to_snippet_tabstop(Bias::Right, cx)
5324 }
5325
5326 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5327 self.move_to_snippet_tabstop(Bias::Left, cx)
5328 }
5329
5330 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5331 if let Some(mut snippet) = self.snippet_stack.pop() {
5332 match bias {
5333 Bias::Left => {
5334 if snippet.active_index > 0 {
5335 snippet.active_index -= 1;
5336 } else {
5337 self.snippet_stack.push(snippet);
5338 return false;
5339 }
5340 }
5341 Bias::Right => {
5342 if snippet.active_index + 1 < snippet.ranges.len() {
5343 snippet.active_index += 1;
5344 } else {
5345 self.snippet_stack.push(snippet);
5346 return false;
5347 }
5348 }
5349 }
5350 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5351 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5352 s.select_anchor_ranges(current_ranges.iter().cloned())
5353 });
5354
5355 if let Some(choices) = &snippet.choices[snippet.active_index] {
5356 if let Some(selection) = current_ranges.first() {
5357 self.show_snippet_choices(&choices, selection.clone(), cx);
5358 }
5359 }
5360
5361 // If snippet state is not at the last tabstop, push it back on the stack
5362 if snippet.active_index + 1 < snippet.ranges.len() {
5363 self.snippet_stack.push(snippet);
5364 }
5365 return true;
5366 }
5367 }
5368
5369 false
5370 }
5371
5372 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5373 self.transact(cx, |this, cx| {
5374 this.select_all(&SelectAll, cx);
5375 this.insert("", cx);
5376 });
5377 }
5378
5379 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5380 self.transact(cx, |this, cx| {
5381 this.select_autoclose_pair(cx);
5382 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5383 if !this.linked_edit_ranges.is_empty() {
5384 let selections = this.selections.all::<MultiBufferPoint>(cx);
5385 let snapshot = this.buffer.read(cx).snapshot(cx);
5386
5387 for selection in selections.iter() {
5388 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5389 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5390 if selection_start.buffer_id != selection_end.buffer_id {
5391 continue;
5392 }
5393 if let Some(ranges) =
5394 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5395 {
5396 for (buffer, entries) in ranges {
5397 linked_ranges.entry(buffer).or_default().extend(entries);
5398 }
5399 }
5400 }
5401 }
5402
5403 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5404 if !this.selections.line_mode {
5405 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5406 for selection in &mut selections {
5407 if selection.is_empty() {
5408 let old_head = selection.head();
5409 let mut new_head =
5410 movement::left(&display_map, old_head.to_display_point(&display_map))
5411 .to_point(&display_map);
5412 if let Some((buffer, line_buffer_range)) = display_map
5413 .buffer_snapshot
5414 .buffer_line_for_row(MultiBufferRow(old_head.row))
5415 {
5416 let indent_size =
5417 buffer.indent_size_for_line(line_buffer_range.start.row);
5418 let indent_len = match indent_size.kind {
5419 IndentKind::Space => {
5420 buffer.settings_at(line_buffer_range.start, cx).tab_size
5421 }
5422 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5423 };
5424 if old_head.column <= indent_size.len && old_head.column > 0 {
5425 let indent_len = indent_len.get();
5426 new_head = cmp::min(
5427 new_head,
5428 MultiBufferPoint::new(
5429 old_head.row,
5430 ((old_head.column - 1) / indent_len) * indent_len,
5431 ),
5432 );
5433 }
5434 }
5435
5436 selection.set_head(new_head, SelectionGoal::None);
5437 }
5438 }
5439 }
5440
5441 this.signature_help_state.set_backspace_pressed(true);
5442 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5443 this.insert("", cx);
5444 let empty_str: Arc<str> = Arc::from("");
5445 for (buffer, edits) in linked_ranges {
5446 let snapshot = buffer.read(cx).snapshot();
5447 use text::ToPoint as TP;
5448
5449 let edits = edits
5450 .into_iter()
5451 .map(|range| {
5452 let end_point = TP::to_point(&range.end, &snapshot);
5453 let mut start_point = TP::to_point(&range.start, &snapshot);
5454
5455 if end_point == start_point {
5456 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5457 .saturating_sub(1);
5458 start_point =
5459 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5460 };
5461
5462 (start_point..end_point, empty_str.clone())
5463 })
5464 .sorted_by_key(|(range, _)| range.start)
5465 .collect::<Vec<_>>();
5466 buffer.update(cx, |this, cx| {
5467 this.edit(edits, None, cx);
5468 })
5469 }
5470 this.refresh_inline_completion(true, false, cx);
5471 linked_editing_ranges::refresh_linked_ranges(this, cx);
5472 });
5473 }
5474
5475 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5476 self.transact(cx, |this, cx| {
5477 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5478 let line_mode = s.line_mode;
5479 s.move_with(|map, selection| {
5480 if selection.is_empty() && !line_mode {
5481 let cursor = movement::right(map, selection.head());
5482 selection.end = cursor;
5483 selection.reversed = true;
5484 selection.goal = SelectionGoal::None;
5485 }
5486 })
5487 });
5488 this.insert("", cx);
5489 this.refresh_inline_completion(true, false, cx);
5490 });
5491 }
5492
5493 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5494 if self.move_to_prev_snippet_tabstop(cx) {
5495 return;
5496 }
5497
5498 self.outdent(&Outdent, cx);
5499 }
5500
5501 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5502 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5503 return;
5504 }
5505
5506 let mut selections = self.selections.all_adjusted(cx);
5507 let buffer = self.buffer.read(cx);
5508 let snapshot = buffer.snapshot(cx);
5509 let rows_iter = selections.iter().map(|s| s.head().row);
5510 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5511
5512 let mut edits = Vec::new();
5513 let mut prev_edited_row = 0;
5514 let mut row_delta = 0;
5515 for selection in &mut selections {
5516 if selection.start.row != prev_edited_row {
5517 row_delta = 0;
5518 }
5519 prev_edited_row = selection.end.row;
5520
5521 // If the selection is non-empty, then increase the indentation of the selected lines.
5522 if !selection.is_empty() {
5523 row_delta =
5524 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5525 continue;
5526 }
5527
5528 // If the selection is empty and the cursor is in the leading whitespace before the
5529 // suggested indentation, then auto-indent the line.
5530 let cursor = selection.head();
5531 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5532 if let Some(suggested_indent) =
5533 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5534 {
5535 if cursor.column < suggested_indent.len
5536 && cursor.column <= current_indent.len
5537 && current_indent.len <= suggested_indent.len
5538 {
5539 selection.start = Point::new(cursor.row, suggested_indent.len);
5540 selection.end = selection.start;
5541 if row_delta == 0 {
5542 edits.extend(Buffer::edit_for_indent_size_adjustment(
5543 cursor.row,
5544 current_indent,
5545 suggested_indent,
5546 ));
5547 row_delta = suggested_indent.len - current_indent.len;
5548 }
5549 continue;
5550 }
5551 }
5552
5553 // Otherwise, insert a hard or soft tab.
5554 let settings = buffer.settings_at(cursor, cx);
5555 let tab_size = if settings.hard_tabs {
5556 IndentSize::tab()
5557 } else {
5558 let tab_size = settings.tab_size.get();
5559 let char_column = snapshot
5560 .text_for_range(Point::new(cursor.row, 0)..cursor)
5561 .flat_map(str::chars)
5562 .count()
5563 + row_delta as usize;
5564 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5565 IndentSize::spaces(chars_to_next_tab_stop)
5566 };
5567 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5568 selection.end = selection.start;
5569 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5570 row_delta += tab_size.len;
5571 }
5572
5573 self.transact(cx, |this, cx| {
5574 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5575 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5576 this.refresh_inline_completion(true, false, cx);
5577 });
5578 }
5579
5580 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5581 if self.read_only(cx) {
5582 return;
5583 }
5584 let mut selections = self.selections.all::<Point>(cx);
5585 let mut prev_edited_row = 0;
5586 let mut row_delta = 0;
5587 let mut edits = Vec::new();
5588 let buffer = self.buffer.read(cx);
5589 let snapshot = buffer.snapshot(cx);
5590 for selection in &mut selections {
5591 if selection.start.row != prev_edited_row {
5592 row_delta = 0;
5593 }
5594 prev_edited_row = selection.end.row;
5595
5596 row_delta =
5597 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5598 }
5599
5600 self.transact(cx, |this, cx| {
5601 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5602 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5603 });
5604 }
5605
5606 fn indent_selection(
5607 buffer: &MultiBuffer,
5608 snapshot: &MultiBufferSnapshot,
5609 selection: &mut Selection<Point>,
5610 edits: &mut Vec<(Range<Point>, String)>,
5611 delta_for_start_row: u32,
5612 cx: &AppContext,
5613 ) -> u32 {
5614 let settings = buffer.settings_at(selection.start, cx);
5615 let tab_size = settings.tab_size.get();
5616 let indent_kind = if settings.hard_tabs {
5617 IndentKind::Tab
5618 } else {
5619 IndentKind::Space
5620 };
5621 let mut start_row = selection.start.row;
5622 let mut end_row = selection.end.row + 1;
5623
5624 // If a selection ends at the beginning of a line, don't indent
5625 // that last line.
5626 if selection.end.column == 0 && selection.end.row > selection.start.row {
5627 end_row -= 1;
5628 }
5629
5630 // Avoid re-indenting a row that has already been indented by a
5631 // previous selection, but still update this selection's column
5632 // to reflect that indentation.
5633 if delta_for_start_row > 0 {
5634 start_row += 1;
5635 selection.start.column += delta_for_start_row;
5636 if selection.end.row == selection.start.row {
5637 selection.end.column += delta_for_start_row;
5638 }
5639 }
5640
5641 let mut delta_for_end_row = 0;
5642 let has_multiple_rows = start_row + 1 != end_row;
5643 for row in start_row..end_row {
5644 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5645 let indent_delta = match (current_indent.kind, indent_kind) {
5646 (IndentKind::Space, IndentKind::Space) => {
5647 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5648 IndentSize::spaces(columns_to_next_tab_stop)
5649 }
5650 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5651 (_, IndentKind::Tab) => IndentSize::tab(),
5652 };
5653
5654 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5655 0
5656 } else {
5657 selection.start.column
5658 };
5659 let row_start = Point::new(row, start);
5660 edits.push((
5661 row_start..row_start,
5662 indent_delta.chars().collect::<String>(),
5663 ));
5664
5665 // Update this selection's endpoints to reflect the indentation.
5666 if row == selection.start.row {
5667 selection.start.column += indent_delta.len;
5668 }
5669 if row == selection.end.row {
5670 selection.end.column += indent_delta.len;
5671 delta_for_end_row = indent_delta.len;
5672 }
5673 }
5674
5675 if selection.start.row == selection.end.row {
5676 delta_for_start_row + delta_for_end_row
5677 } else {
5678 delta_for_end_row
5679 }
5680 }
5681
5682 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5683 if self.read_only(cx) {
5684 return;
5685 }
5686 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5687 let selections = self.selections.all::<Point>(cx);
5688 let mut deletion_ranges = Vec::new();
5689 let mut last_outdent = None;
5690 {
5691 let buffer = self.buffer.read(cx);
5692 let snapshot = buffer.snapshot(cx);
5693 for selection in &selections {
5694 let settings = buffer.settings_at(selection.start, cx);
5695 let tab_size = settings.tab_size.get();
5696 let mut rows = selection.spanned_rows(false, &display_map);
5697
5698 // Avoid re-outdenting a row that has already been outdented by a
5699 // previous selection.
5700 if let Some(last_row) = last_outdent {
5701 if last_row == rows.start {
5702 rows.start = rows.start.next_row();
5703 }
5704 }
5705 let has_multiple_rows = rows.len() > 1;
5706 for row in rows.iter_rows() {
5707 let indent_size = snapshot.indent_size_for_line(row);
5708 if indent_size.len > 0 {
5709 let deletion_len = match indent_size.kind {
5710 IndentKind::Space => {
5711 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5712 if columns_to_prev_tab_stop == 0 {
5713 tab_size
5714 } else {
5715 columns_to_prev_tab_stop
5716 }
5717 }
5718 IndentKind::Tab => 1,
5719 };
5720 let start = if has_multiple_rows
5721 || deletion_len > selection.start.column
5722 || indent_size.len < selection.start.column
5723 {
5724 0
5725 } else {
5726 selection.start.column - deletion_len
5727 };
5728 deletion_ranges.push(
5729 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5730 );
5731 last_outdent = Some(row);
5732 }
5733 }
5734 }
5735 }
5736
5737 self.transact(cx, |this, cx| {
5738 this.buffer.update(cx, |buffer, cx| {
5739 let empty_str: Arc<str> = Arc::default();
5740 buffer.edit(
5741 deletion_ranges
5742 .into_iter()
5743 .map(|range| (range, empty_str.clone())),
5744 None,
5745 cx,
5746 );
5747 });
5748 let selections = this.selections.all::<usize>(cx);
5749 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5750 });
5751 }
5752
5753 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5754 if self.read_only(cx) {
5755 return;
5756 }
5757 let selections = self
5758 .selections
5759 .all::<usize>(cx)
5760 .into_iter()
5761 .map(|s| s.range());
5762
5763 self.transact(cx, |this, cx| {
5764 this.buffer.update(cx, |buffer, cx| {
5765 buffer.autoindent_ranges(selections, cx);
5766 });
5767 let selections = this.selections.all::<usize>(cx);
5768 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5769 });
5770 }
5771
5772 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5773 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5774 let selections = self.selections.all::<Point>(cx);
5775
5776 let mut new_cursors = Vec::new();
5777 let mut edit_ranges = Vec::new();
5778 let mut selections = selections.iter().peekable();
5779 while let Some(selection) = selections.next() {
5780 let mut rows = selection.spanned_rows(false, &display_map);
5781 let goal_display_column = selection.head().to_display_point(&display_map).column();
5782
5783 // Accumulate contiguous regions of rows that we want to delete.
5784 while let Some(next_selection) = selections.peek() {
5785 let next_rows = next_selection.spanned_rows(false, &display_map);
5786 if next_rows.start <= rows.end {
5787 rows.end = next_rows.end;
5788 selections.next().unwrap();
5789 } else {
5790 break;
5791 }
5792 }
5793
5794 let buffer = &display_map.buffer_snapshot;
5795 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5796 let edit_end;
5797 let cursor_buffer_row;
5798 if buffer.max_point().row >= rows.end.0 {
5799 // If there's a line after the range, delete the \n from the end of the row range
5800 // and position the cursor on the next line.
5801 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5802 cursor_buffer_row = rows.end;
5803 } else {
5804 // If there isn't a line after the range, delete the \n from the line before the
5805 // start of the row range and position the cursor there.
5806 edit_start = edit_start.saturating_sub(1);
5807 edit_end = buffer.len();
5808 cursor_buffer_row = rows.start.previous_row();
5809 }
5810
5811 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5812 *cursor.column_mut() =
5813 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5814
5815 new_cursors.push((
5816 selection.id,
5817 buffer.anchor_after(cursor.to_point(&display_map)),
5818 ));
5819 edit_ranges.push(edit_start..edit_end);
5820 }
5821
5822 self.transact(cx, |this, cx| {
5823 let buffer = this.buffer.update(cx, |buffer, cx| {
5824 let empty_str: Arc<str> = Arc::default();
5825 buffer.edit(
5826 edit_ranges
5827 .into_iter()
5828 .map(|range| (range, empty_str.clone())),
5829 None,
5830 cx,
5831 );
5832 buffer.snapshot(cx)
5833 });
5834 let new_selections = new_cursors
5835 .into_iter()
5836 .map(|(id, cursor)| {
5837 let cursor = cursor.to_point(&buffer);
5838 Selection {
5839 id,
5840 start: cursor,
5841 end: cursor,
5842 reversed: false,
5843 goal: SelectionGoal::None,
5844 }
5845 })
5846 .collect();
5847
5848 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5849 s.select(new_selections);
5850 });
5851 });
5852 }
5853
5854 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5855 if self.read_only(cx) {
5856 return;
5857 }
5858 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5859 for selection in self.selections.all::<Point>(cx) {
5860 let start = MultiBufferRow(selection.start.row);
5861 // Treat single line selections as if they include the next line. Otherwise this action
5862 // would do nothing for single line selections individual cursors.
5863 let end = if selection.start.row == selection.end.row {
5864 MultiBufferRow(selection.start.row + 1)
5865 } else {
5866 MultiBufferRow(selection.end.row)
5867 };
5868
5869 if let Some(last_row_range) = row_ranges.last_mut() {
5870 if start <= last_row_range.end {
5871 last_row_range.end = end;
5872 continue;
5873 }
5874 }
5875 row_ranges.push(start..end);
5876 }
5877
5878 let snapshot = self.buffer.read(cx).snapshot(cx);
5879 let mut cursor_positions = Vec::new();
5880 for row_range in &row_ranges {
5881 let anchor = snapshot.anchor_before(Point::new(
5882 row_range.end.previous_row().0,
5883 snapshot.line_len(row_range.end.previous_row()),
5884 ));
5885 cursor_positions.push(anchor..anchor);
5886 }
5887
5888 self.transact(cx, |this, cx| {
5889 for row_range in row_ranges.into_iter().rev() {
5890 for row in row_range.iter_rows().rev() {
5891 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5892 let next_line_row = row.next_row();
5893 let indent = snapshot.indent_size_for_line(next_line_row);
5894 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5895
5896 let replace = if snapshot.line_len(next_line_row) > indent.len {
5897 " "
5898 } else {
5899 ""
5900 };
5901
5902 this.buffer.update(cx, |buffer, cx| {
5903 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5904 });
5905 }
5906 }
5907
5908 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5909 s.select_anchor_ranges(cursor_positions)
5910 });
5911 });
5912 }
5913
5914 pub fn sort_lines_case_sensitive(
5915 &mut self,
5916 _: &SortLinesCaseSensitive,
5917 cx: &mut ViewContext<Self>,
5918 ) {
5919 self.manipulate_lines(cx, |lines| lines.sort())
5920 }
5921
5922 pub fn sort_lines_case_insensitive(
5923 &mut self,
5924 _: &SortLinesCaseInsensitive,
5925 cx: &mut ViewContext<Self>,
5926 ) {
5927 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5928 }
5929
5930 pub fn unique_lines_case_insensitive(
5931 &mut self,
5932 _: &UniqueLinesCaseInsensitive,
5933 cx: &mut ViewContext<Self>,
5934 ) {
5935 self.manipulate_lines(cx, |lines| {
5936 let mut seen = HashSet::default();
5937 lines.retain(|line| seen.insert(line.to_lowercase()));
5938 })
5939 }
5940
5941 pub fn unique_lines_case_sensitive(
5942 &mut self,
5943 _: &UniqueLinesCaseSensitive,
5944 cx: &mut ViewContext<Self>,
5945 ) {
5946 self.manipulate_lines(cx, |lines| {
5947 let mut seen = HashSet::default();
5948 lines.retain(|line| seen.insert(*line));
5949 })
5950 }
5951
5952 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
5953 let mut revert_changes = HashMap::default();
5954 let snapshot = self.snapshot(cx);
5955 for hunk in hunks_for_ranges(
5956 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
5957 &snapshot,
5958 ) {
5959 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5960 }
5961 if !revert_changes.is_empty() {
5962 self.transact(cx, |editor, cx| {
5963 editor.revert(revert_changes, cx);
5964 });
5965 }
5966 }
5967
5968 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
5969 let Some(project) = self.project.clone() else {
5970 return;
5971 };
5972 self.reload(project, cx).detach_and_notify_err(cx);
5973 }
5974
5975 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5976 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
5977 if !revert_changes.is_empty() {
5978 self.transact(cx, |editor, cx| {
5979 editor.revert(revert_changes, cx);
5980 });
5981 }
5982 }
5983
5984 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
5985 let snapshot = self.buffer.read(cx).read(cx);
5986 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
5987 drop(snapshot);
5988 let mut revert_changes = HashMap::default();
5989 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5990 if !revert_changes.is_empty() {
5991 self.revert(revert_changes, cx)
5992 }
5993 }
5994 }
5995
5996 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5997 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5998 let project_path = buffer.read(cx).project_path(cx)?;
5999 let project = self.project.as_ref()?.read(cx);
6000 let entry = project.entry_for_path(&project_path, cx)?;
6001 let parent = match &entry.canonical_path {
6002 Some(canonical_path) => canonical_path.to_path_buf(),
6003 None => project.absolute_path(&project_path, cx)?,
6004 }
6005 .parent()?
6006 .to_path_buf();
6007 Some(parent)
6008 }) {
6009 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6010 }
6011 }
6012
6013 fn gather_revert_changes(
6014 &mut self,
6015 selections: &[Selection<Point>],
6016 cx: &mut ViewContext<Editor>,
6017 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6018 let mut revert_changes = HashMap::default();
6019 let snapshot = self.snapshot(cx);
6020 for hunk in hunks_for_selections(&snapshot, selections) {
6021 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6022 }
6023 revert_changes
6024 }
6025
6026 pub fn prepare_revert_change(
6027 &mut self,
6028 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6029 hunk: &MultiBufferDiffHunk,
6030 cx: &AppContext,
6031 ) -> Option<()> {
6032 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6033 let buffer = buffer.read(cx);
6034 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6035 let original_text = change_set
6036 .read(cx)
6037 .base_text
6038 .as_ref()?
6039 .read(cx)
6040 .as_rope()
6041 .slice(hunk.diff_base_byte_range.clone());
6042 let buffer_snapshot = buffer.snapshot();
6043 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6044 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6045 probe
6046 .0
6047 .start
6048 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6049 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6050 }) {
6051 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6052 Some(())
6053 } else {
6054 None
6055 }
6056 }
6057
6058 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6059 self.manipulate_lines(cx, |lines| lines.reverse())
6060 }
6061
6062 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6063 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6064 }
6065
6066 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6067 where
6068 Fn: FnMut(&mut Vec<&str>),
6069 {
6070 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6071 let buffer = self.buffer.read(cx).snapshot(cx);
6072
6073 let mut edits = Vec::new();
6074
6075 let selections = self.selections.all::<Point>(cx);
6076 let mut selections = selections.iter().peekable();
6077 let mut contiguous_row_selections = Vec::new();
6078 let mut new_selections = Vec::new();
6079 let mut added_lines = 0;
6080 let mut removed_lines = 0;
6081
6082 while let Some(selection) = selections.next() {
6083 let (start_row, end_row) = consume_contiguous_rows(
6084 &mut contiguous_row_selections,
6085 selection,
6086 &display_map,
6087 &mut selections,
6088 );
6089
6090 let start_point = Point::new(start_row.0, 0);
6091 let end_point = Point::new(
6092 end_row.previous_row().0,
6093 buffer.line_len(end_row.previous_row()),
6094 );
6095 let text = buffer
6096 .text_for_range(start_point..end_point)
6097 .collect::<String>();
6098
6099 let mut lines = text.split('\n').collect_vec();
6100
6101 let lines_before = lines.len();
6102 callback(&mut lines);
6103 let lines_after = lines.len();
6104
6105 edits.push((start_point..end_point, lines.join("\n")));
6106
6107 // Selections must change based on added and removed line count
6108 let start_row =
6109 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6110 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6111 new_selections.push(Selection {
6112 id: selection.id,
6113 start: start_row,
6114 end: end_row,
6115 goal: SelectionGoal::None,
6116 reversed: selection.reversed,
6117 });
6118
6119 if lines_after > lines_before {
6120 added_lines += lines_after - lines_before;
6121 } else if lines_before > lines_after {
6122 removed_lines += lines_before - lines_after;
6123 }
6124 }
6125
6126 self.transact(cx, |this, cx| {
6127 let buffer = this.buffer.update(cx, |buffer, cx| {
6128 buffer.edit(edits, None, cx);
6129 buffer.snapshot(cx)
6130 });
6131
6132 // Recalculate offsets on newly edited buffer
6133 let new_selections = new_selections
6134 .iter()
6135 .map(|s| {
6136 let start_point = Point::new(s.start.0, 0);
6137 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6138 Selection {
6139 id: s.id,
6140 start: buffer.point_to_offset(start_point),
6141 end: buffer.point_to_offset(end_point),
6142 goal: s.goal,
6143 reversed: s.reversed,
6144 }
6145 })
6146 .collect();
6147
6148 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6149 s.select(new_selections);
6150 });
6151
6152 this.request_autoscroll(Autoscroll::fit(), cx);
6153 });
6154 }
6155
6156 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6157 self.manipulate_text(cx, |text| text.to_uppercase())
6158 }
6159
6160 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6161 self.manipulate_text(cx, |text| text.to_lowercase())
6162 }
6163
6164 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6165 self.manipulate_text(cx, |text| {
6166 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6167 // https://github.com/rutrum/convert-case/issues/16
6168 text.split('\n')
6169 .map(|line| line.to_case(Case::Title))
6170 .join("\n")
6171 })
6172 }
6173
6174 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6175 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6176 }
6177
6178 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6179 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6180 }
6181
6182 pub fn convert_to_upper_camel_case(
6183 &mut self,
6184 _: &ConvertToUpperCamelCase,
6185 cx: &mut ViewContext<Self>,
6186 ) {
6187 self.manipulate_text(cx, |text| {
6188 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6189 // https://github.com/rutrum/convert-case/issues/16
6190 text.split('\n')
6191 .map(|line| line.to_case(Case::UpperCamel))
6192 .join("\n")
6193 })
6194 }
6195
6196 pub fn convert_to_lower_camel_case(
6197 &mut self,
6198 _: &ConvertToLowerCamelCase,
6199 cx: &mut ViewContext<Self>,
6200 ) {
6201 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6202 }
6203
6204 pub fn convert_to_opposite_case(
6205 &mut self,
6206 _: &ConvertToOppositeCase,
6207 cx: &mut ViewContext<Self>,
6208 ) {
6209 self.manipulate_text(cx, |text| {
6210 text.chars()
6211 .fold(String::with_capacity(text.len()), |mut t, c| {
6212 if c.is_uppercase() {
6213 t.extend(c.to_lowercase());
6214 } else {
6215 t.extend(c.to_uppercase());
6216 }
6217 t
6218 })
6219 })
6220 }
6221
6222 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6223 where
6224 Fn: FnMut(&str) -> String,
6225 {
6226 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6227 let buffer = self.buffer.read(cx).snapshot(cx);
6228
6229 let mut new_selections = Vec::new();
6230 let mut edits = Vec::new();
6231 let mut selection_adjustment = 0i32;
6232
6233 for selection in self.selections.all::<usize>(cx) {
6234 let selection_is_empty = selection.is_empty();
6235
6236 let (start, end) = if selection_is_empty {
6237 let word_range = movement::surrounding_word(
6238 &display_map,
6239 selection.start.to_display_point(&display_map),
6240 );
6241 let start = word_range.start.to_offset(&display_map, Bias::Left);
6242 let end = word_range.end.to_offset(&display_map, Bias::Left);
6243 (start, end)
6244 } else {
6245 (selection.start, selection.end)
6246 };
6247
6248 let text = buffer.text_for_range(start..end).collect::<String>();
6249 let old_length = text.len() as i32;
6250 let text = callback(&text);
6251
6252 new_selections.push(Selection {
6253 start: (start as i32 - selection_adjustment) as usize,
6254 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6255 goal: SelectionGoal::None,
6256 ..selection
6257 });
6258
6259 selection_adjustment += old_length - text.len() as i32;
6260
6261 edits.push((start..end, text));
6262 }
6263
6264 self.transact(cx, |this, cx| {
6265 this.buffer.update(cx, |buffer, cx| {
6266 buffer.edit(edits, None, cx);
6267 });
6268
6269 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6270 s.select(new_selections);
6271 });
6272
6273 this.request_autoscroll(Autoscroll::fit(), cx);
6274 });
6275 }
6276
6277 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6278 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6279 let buffer = &display_map.buffer_snapshot;
6280 let selections = self.selections.all::<Point>(cx);
6281
6282 let mut edits = Vec::new();
6283 let mut selections_iter = selections.iter().peekable();
6284 while let Some(selection) = selections_iter.next() {
6285 let mut rows = selection.spanned_rows(false, &display_map);
6286 // duplicate line-wise
6287 if whole_lines || selection.start == selection.end {
6288 // Avoid duplicating the same lines twice.
6289 while let Some(next_selection) = selections_iter.peek() {
6290 let next_rows = next_selection.spanned_rows(false, &display_map);
6291 if next_rows.start < rows.end {
6292 rows.end = next_rows.end;
6293 selections_iter.next().unwrap();
6294 } else {
6295 break;
6296 }
6297 }
6298
6299 // Copy the text from the selected row region and splice it either at the start
6300 // or end of the region.
6301 let start = Point::new(rows.start.0, 0);
6302 let end = Point::new(
6303 rows.end.previous_row().0,
6304 buffer.line_len(rows.end.previous_row()),
6305 );
6306 let text = buffer
6307 .text_for_range(start..end)
6308 .chain(Some("\n"))
6309 .collect::<String>();
6310 let insert_location = if upwards {
6311 Point::new(rows.end.0, 0)
6312 } else {
6313 start
6314 };
6315 edits.push((insert_location..insert_location, text));
6316 } else {
6317 // duplicate character-wise
6318 let start = selection.start;
6319 let end = selection.end;
6320 let text = buffer.text_for_range(start..end).collect::<String>();
6321 edits.push((selection.end..selection.end, text));
6322 }
6323 }
6324
6325 self.transact(cx, |this, cx| {
6326 this.buffer.update(cx, |buffer, cx| {
6327 buffer.edit(edits, None, cx);
6328 });
6329
6330 this.request_autoscroll(Autoscroll::fit(), cx);
6331 });
6332 }
6333
6334 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6335 self.duplicate(true, true, cx);
6336 }
6337
6338 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6339 self.duplicate(false, true, cx);
6340 }
6341
6342 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6343 self.duplicate(false, false, cx);
6344 }
6345
6346 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6347 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6348 let buffer = self.buffer.read(cx).snapshot(cx);
6349
6350 let mut edits = Vec::new();
6351 let mut unfold_ranges = Vec::new();
6352 let mut refold_creases = Vec::new();
6353
6354 let selections = self.selections.all::<Point>(cx);
6355 let mut selections = selections.iter().peekable();
6356 let mut contiguous_row_selections = Vec::new();
6357 let mut new_selections = Vec::new();
6358
6359 while let Some(selection) = selections.next() {
6360 // Find all the selections that span a contiguous row range
6361 let (start_row, end_row) = consume_contiguous_rows(
6362 &mut contiguous_row_selections,
6363 selection,
6364 &display_map,
6365 &mut selections,
6366 );
6367
6368 // Move the text spanned by the row range to be before the line preceding the row range
6369 if start_row.0 > 0 {
6370 let range_to_move = Point::new(
6371 start_row.previous_row().0,
6372 buffer.line_len(start_row.previous_row()),
6373 )
6374 ..Point::new(
6375 end_row.previous_row().0,
6376 buffer.line_len(end_row.previous_row()),
6377 );
6378 let insertion_point = display_map
6379 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6380 .0;
6381
6382 // Don't move lines across excerpts
6383 if buffer
6384 .excerpt_boundaries_in_range((
6385 Bound::Excluded(insertion_point),
6386 Bound::Included(range_to_move.end),
6387 ))
6388 .next()
6389 .is_none()
6390 {
6391 let text = buffer
6392 .text_for_range(range_to_move.clone())
6393 .flat_map(|s| s.chars())
6394 .skip(1)
6395 .chain(['\n'])
6396 .collect::<String>();
6397
6398 edits.push((
6399 buffer.anchor_after(range_to_move.start)
6400 ..buffer.anchor_before(range_to_move.end),
6401 String::new(),
6402 ));
6403 let insertion_anchor = buffer.anchor_after(insertion_point);
6404 edits.push((insertion_anchor..insertion_anchor, text));
6405
6406 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6407
6408 // Move selections up
6409 new_selections.extend(contiguous_row_selections.drain(..).map(
6410 |mut selection| {
6411 selection.start.row -= row_delta;
6412 selection.end.row -= row_delta;
6413 selection
6414 },
6415 ));
6416
6417 // Move folds up
6418 unfold_ranges.push(range_to_move.clone());
6419 for fold in display_map.folds_in_range(
6420 buffer.anchor_before(range_to_move.start)
6421 ..buffer.anchor_after(range_to_move.end),
6422 ) {
6423 let mut start = fold.range.start.to_point(&buffer);
6424 let mut end = fold.range.end.to_point(&buffer);
6425 start.row -= row_delta;
6426 end.row -= row_delta;
6427 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6428 }
6429 }
6430 }
6431
6432 // If we didn't move line(s), preserve the existing selections
6433 new_selections.append(&mut contiguous_row_selections);
6434 }
6435
6436 self.transact(cx, |this, cx| {
6437 this.unfold_ranges(&unfold_ranges, true, true, cx);
6438 this.buffer.update(cx, |buffer, cx| {
6439 for (range, text) in edits {
6440 buffer.edit([(range, text)], None, cx);
6441 }
6442 });
6443 this.fold_creases(refold_creases, true, cx);
6444 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6445 s.select(new_selections);
6446 })
6447 });
6448 }
6449
6450 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6451 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6452 let buffer = self.buffer.read(cx).snapshot(cx);
6453
6454 let mut edits = Vec::new();
6455 let mut unfold_ranges = Vec::new();
6456 let mut refold_creases = Vec::new();
6457
6458 let selections = self.selections.all::<Point>(cx);
6459 let mut selections = selections.iter().peekable();
6460 let mut contiguous_row_selections = Vec::new();
6461 let mut new_selections = Vec::new();
6462
6463 while let Some(selection) = selections.next() {
6464 // Find all the selections that span a contiguous row range
6465 let (start_row, end_row) = consume_contiguous_rows(
6466 &mut contiguous_row_selections,
6467 selection,
6468 &display_map,
6469 &mut selections,
6470 );
6471
6472 // Move the text spanned by the row range to be after the last line of the row range
6473 if end_row.0 <= buffer.max_point().row {
6474 let range_to_move =
6475 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6476 let insertion_point = display_map
6477 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6478 .0;
6479
6480 // Don't move lines across excerpt boundaries
6481 if buffer
6482 .excerpt_boundaries_in_range((
6483 Bound::Excluded(range_to_move.start),
6484 Bound::Included(insertion_point),
6485 ))
6486 .next()
6487 .is_none()
6488 {
6489 let mut text = String::from("\n");
6490 text.extend(buffer.text_for_range(range_to_move.clone()));
6491 text.pop(); // Drop trailing newline
6492 edits.push((
6493 buffer.anchor_after(range_to_move.start)
6494 ..buffer.anchor_before(range_to_move.end),
6495 String::new(),
6496 ));
6497 let insertion_anchor = buffer.anchor_after(insertion_point);
6498 edits.push((insertion_anchor..insertion_anchor, text));
6499
6500 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6501
6502 // Move selections down
6503 new_selections.extend(contiguous_row_selections.drain(..).map(
6504 |mut selection| {
6505 selection.start.row += row_delta;
6506 selection.end.row += row_delta;
6507 selection
6508 },
6509 ));
6510
6511 // Move folds down
6512 unfold_ranges.push(range_to_move.clone());
6513 for fold in display_map.folds_in_range(
6514 buffer.anchor_before(range_to_move.start)
6515 ..buffer.anchor_after(range_to_move.end),
6516 ) {
6517 let mut start = fold.range.start.to_point(&buffer);
6518 let mut end = fold.range.end.to_point(&buffer);
6519 start.row += row_delta;
6520 end.row += row_delta;
6521 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6522 }
6523 }
6524 }
6525
6526 // If we didn't move line(s), preserve the existing selections
6527 new_selections.append(&mut contiguous_row_selections);
6528 }
6529
6530 self.transact(cx, |this, cx| {
6531 this.unfold_ranges(&unfold_ranges, true, true, cx);
6532 this.buffer.update(cx, |buffer, cx| {
6533 for (range, text) in edits {
6534 buffer.edit([(range, text)], None, cx);
6535 }
6536 });
6537 this.fold_creases(refold_creases, true, cx);
6538 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6539 });
6540 }
6541
6542 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6543 let text_layout_details = &self.text_layout_details(cx);
6544 self.transact(cx, |this, cx| {
6545 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6546 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6547 let line_mode = s.line_mode;
6548 s.move_with(|display_map, selection| {
6549 if !selection.is_empty() || line_mode {
6550 return;
6551 }
6552
6553 let mut head = selection.head();
6554 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6555 if head.column() == display_map.line_len(head.row()) {
6556 transpose_offset = display_map
6557 .buffer_snapshot
6558 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6559 }
6560
6561 if transpose_offset == 0 {
6562 return;
6563 }
6564
6565 *head.column_mut() += 1;
6566 head = display_map.clip_point(head, Bias::Right);
6567 let goal = SelectionGoal::HorizontalPosition(
6568 display_map
6569 .x_for_display_point(head, text_layout_details)
6570 .into(),
6571 );
6572 selection.collapse_to(head, goal);
6573
6574 let transpose_start = display_map
6575 .buffer_snapshot
6576 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6577 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6578 let transpose_end = display_map
6579 .buffer_snapshot
6580 .clip_offset(transpose_offset + 1, Bias::Right);
6581 if let Some(ch) =
6582 display_map.buffer_snapshot.chars_at(transpose_start).next()
6583 {
6584 edits.push((transpose_start..transpose_offset, String::new()));
6585 edits.push((transpose_end..transpose_end, ch.to_string()));
6586 }
6587 }
6588 });
6589 edits
6590 });
6591 this.buffer
6592 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6593 let selections = this.selections.all::<usize>(cx);
6594 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6595 s.select(selections);
6596 });
6597 });
6598 }
6599
6600 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6601 self.rewrap_impl(IsVimMode::No, cx)
6602 }
6603
6604 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6605 let buffer = self.buffer.read(cx).snapshot(cx);
6606 let selections = self.selections.all::<Point>(cx);
6607 let mut selections = selections.iter().peekable();
6608
6609 let mut edits = Vec::new();
6610 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6611
6612 while let Some(selection) = selections.next() {
6613 let mut start_row = selection.start.row;
6614 let mut end_row = selection.end.row;
6615
6616 // Skip selections that overlap with a range that has already been rewrapped.
6617 let selection_range = start_row..end_row;
6618 if rewrapped_row_ranges
6619 .iter()
6620 .any(|range| range.overlaps(&selection_range))
6621 {
6622 continue;
6623 }
6624
6625 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6626
6627 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6628 match language_scope.language_name().0.as_ref() {
6629 "Markdown" | "Plain Text" => {
6630 should_rewrap = true;
6631 }
6632 _ => {}
6633 }
6634 }
6635
6636 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6637
6638 // Since not all lines in the selection may be at the same indent
6639 // level, choose the indent size that is the most common between all
6640 // of the lines.
6641 //
6642 // If there is a tie, we use the deepest indent.
6643 let (indent_size, indent_end) = {
6644 let mut indent_size_occurrences = HashMap::default();
6645 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6646
6647 for row in start_row..=end_row {
6648 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6649 rows_by_indent_size.entry(indent).or_default().push(row);
6650 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6651 }
6652
6653 let indent_size = indent_size_occurrences
6654 .into_iter()
6655 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6656 .map(|(indent, _)| indent)
6657 .unwrap_or_default();
6658 let row = rows_by_indent_size[&indent_size][0];
6659 let indent_end = Point::new(row, indent_size.len);
6660
6661 (indent_size, indent_end)
6662 };
6663
6664 let mut line_prefix = indent_size.chars().collect::<String>();
6665
6666 if let Some(comment_prefix) =
6667 buffer
6668 .language_scope_at(selection.head())
6669 .and_then(|language| {
6670 language
6671 .line_comment_prefixes()
6672 .iter()
6673 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6674 .cloned()
6675 })
6676 {
6677 line_prefix.push_str(&comment_prefix);
6678 should_rewrap = true;
6679 }
6680
6681 if !should_rewrap {
6682 continue;
6683 }
6684
6685 if selection.is_empty() {
6686 'expand_upwards: while start_row > 0 {
6687 let prev_row = start_row - 1;
6688 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6689 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6690 {
6691 start_row = prev_row;
6692 } else {
6693 break 'expand_upwards;
6694 }
6695 }
6696
6697 'expand_downwards: while end_row < buffer.max_point().row {
6698 let next_row = end_row + 1;
6699 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6700 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6701 {
6702 end_row = next_row;
6703 } else {
6704 break 'expand_downwards;
6705 }
6706 }
6707 }
6708
6709 let start = Point::new(start_row, 0);
6710 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6711 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6712 let Some(lines_without_prefixes) = selection_text
6713 .lines()
6714 .map(|line| {
6715 line.strip_prefix(&line_prefix)
6716 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6717 .ok_or_else(|| {
6718 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6719 })
6720 })
6721 .collect::<Result<Vec<_>, _>>()
6722 .log_err()
6723 else {
6724 continue;
6725 };
6726
6727 let wrap_column = buffer
6728 .settings_at(Point::new(start_row, 0), cx)
6729 .preferred_line_length as usize;
6730 let wrapped_text = wrap_with_prefix(
6731 line_prefix,
6732 lines_without_prefixes.join(" "),
6733 wrap_column,
6734 tab_size,
6735 );
6736
6737 // TODO: should always use char-based diff while still supporting cursor behavior that
6738 // matches vim.
6739 let diff = match is_vim_mode {
6740 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6741 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6742 };
6743 let mut offset = start.to_offset(&buffer);
6744 let mut moved_since_edit = true;
6745
6746 for change in diff.iter_all_changes() {
6747 let value = change.value();
6748 match change.tag() {
6749 ChangeTag::Equal => {
6750 offset += value.len();
6751 moved_since_edit = true;
6752 }
6753 ChangeTag::Delete => {
6754 let start = buffer.anchor_after(offset);
6755 let end = buffer.anchor_before(offset + value.len());
6756
6757 if moved_since_edit {
6758 edits.push((start..end, String::new()));
6759 } else {
6760 edits.last_mut().unwrap().0.end = end;
6761 }
6762
6763 offset += value.len();
6764 moved_since_edit = false;
6765 }
6766 ChangeTag::Insert => {
6767 if moved_since_edit {
6768 let anchor = buffer.anchor_after(offset);
6769 edits.push((anchor..anchor, value.to_string()));
6770 } else {
6771 edits.last_mut().unwrap().1.push_str(value);
6772 }
6773
6774 moved_since_edit = false;
6775 }
6776 }
6777 }
6778
6779 rewrapped_row_ranges.push(start_row..=end_row);
6780 }
6781
6782 self.buffer
6783 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6784 }
6785
6786 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6787 let mut text = String::new();
6788 let buffer = self.buffer.read(cx).snapshot(cx);
6789 let mut selections = self.selections.all::<Point>(cx);
6790 let mut clipboard_selections = Vec::with_capacity(selections.len());
6791 {
6792 let max_point = buffer.max_point();
6793 let mut is_first = true;
6794 for selection in &mut selections {
6795 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6796 if is_entire_line {
6797 selection.start = Point::new(selection.start.row, 0);
6798 if !selection.is_empty() && selection.end.column == 0 {
6799 selection.end = cmp::min(max_point, selection.end);
6800 } else {
6801 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6802 }
6803 selection.goal = SelectionGoal::None;
6804 }
6805 if is_first {
6806 is_first = false;
6807 } else {
6808 text += "\n";
6809 }
6810 let mut len = 0;
6811 for chunk in buffer.text_for_range(selection.start..selection.end) {
6812 text.push_str(chunk);
6813 len += chunk.len();
6814 }
6815 clipboard_selections.push(ClipboardSelection {
6816 len,
6817 is_entire_line,
6818 first_line_indent: buffer
6819 .indent_size_for_line(MultiBufferRow(selection.start.row))
6820 .len,
6821 });
6822 }
6823 }
6824
6825 self.transact(cx, |this, cx| {
6826 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6827 s.select(selections);
6828 });
6829 this.insert("", cx);
6830 });
6831 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6832 }
6833
6834 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6835 let item = self.cut_common(cx);
6836 cx.write_to_clipboard(item);
6837 }
6838
6839 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6840 self.change_selections(None, cx, |s| {
6841 s.move_with(|snapshot, sel| {
6842 if sel.is_empty() {
6843 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6844 }
6845 });
6846 });
6847 let item = self.cut_common(cx);
6848 cx.set_global(KillRing(item))
6849 }
6850
6851 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6852 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6853 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6854 (kill_ring.text().to_string(), kill_ring.metadata_json())
6855 } else {
6856 return;
6857 }
6858 } else {
6859 return;
6860 };
6861 self.do_paste(&text, metadata, false, cx);
6862 }
6863
6864 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6865 let selections = self.selections.all::<Point>(cx);
6866 let buffer = self.buffer.read(cx).read(cx);
6867 let mut text = String::new();
6868
6869 let mut clipboard_selections = Vec::with_capacity(selections.len());
6870 {
6871 let max_point = buffer.max_point();
6872 let mut is_first = true;
6873 for selection in selections.iter() {
6874 let mut start = selection.start;
6875 let mut end = selection.end;
6876 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6877 if is_entire_line {
6878 start = Point::new(start.row, 0);
6879 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6880 }
6881 if is_first {
6882 is_first = false;
6883 } else {
6884 text += "\n";
6885 }
6886 let mut len = 0;
6887 for chunk in buffer.text_for_range(start..end) {
6888 text.push_str(chunk);
6889 len += chunk.len();
6890 }
6891 clipboard_selections.push(ClipboardSelection {
6892 len,
6893 is_entire_line,
6894 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6895 });
6896 }
6897 }
6898
6899 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6900 text,
6901 clipboard_selections,
6902 ));
6903 }
6904
6905 pub fn do_paste(
6906 &mut self,
6907 text: &String,
6908 clipboard_selections: Option<Vec<ClipboardSelection>>,
6909 handle_entire_lines: bool,
6910 cx: &mut ViewContext<Self>,
6911 ) {
6912 if self.read_only(cx) {
6913 return;
6914 }
6915
6916 let clipboard_text = Cow::Borrowed(text);
6917
6918 self.transact(cx, |this, cx| {
6919 if let Some(mut clipboard_selections) = clipboard_selections {
6920 let old_selections = this.selections.all::<usize>(cx);
6921 let all_selections_were_entire_line =
6922 clipboard_selections.iter().all(|s| s.is_entire_line);
6923 let first_selection_indent_column =
6924 clipboard_selections.first().map(|s| s.first_line_indent);
6925 if clipboard_selections.len() != old_selections.len() {
6926 clipboard_selections.drain(..);
6927 }
6928 let cursor_offset = this.selections.last::<usize>(cx).head();
6929 let mut auto_indent_on_paste = true;
6930
6931 this.buffer.update(cx, |buffer, cx| {
6932 let snapshot = buffer.read(cx);
6933 auto_indent_on_paste =
6934 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6935
6936 let mut start_offset = 0;
6937 let mut edits = Vec::new();
6938 let mut original_indent_columns = Vec::new();
6939 for (ix, selection) in old_selections.iter().enumerate() {
6940 let to_insert;
6941 let entire_line;
6942 let original_indent_column;
6943 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6944 let end_offset = start_offset + clipboard_selection.len;
6945 to_insert = &clipboard_text[start_offset..end_offset];
6946 entire_line = clipboard_selection.is_entire_line;
6947 start_offset = end_offset + 1;
6948 original_indent_column = Some(clipboard_selection.first_line_indent);
6949 } else {
6950 to_insert = clipboard_text.as_str();
6951 entire_line = all_selections_were_entire_line;
6952 original_indent_column = first_selection_indent_column
6953 }
6954
6955 // If the corresponding selection was empty when this slice of the
6956 // clipboard text was written, then the entire line containing the
6957 // selection was copied. If this selection is also currently empty,
6958 // then paste the line before the current line of the buffer.
6959 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6960 let column = selection.start.to_point(&snapshot).column as usize;
6961 let line_start = selection.start - column;
6962 line_start..line_start
6963 } else {
6964 selection.range()
6965 };
6966
6967 edits.push((range, to_insert));
6968 original_indent_columns.extend(original_indent_column);
6969 }
6970 drop(snapshot);
6971
6972 buffer.edit(
6973 edits,
6974 if auto_indent_on_paste {
6975 Some(AutoindentMode::Block {
6976 original_indent_columns,
6977 })
6978 } else {
6979 None
6980 },
6981 cx,
6982 );
6983 });
6984
6985 let selections = this.selections.all::<usize>(cx);
6986 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6987 } else {
6988 this.insert(&clipboard_text, cx);
6989 }
6990 });
6991 }
6992
6993 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6994 if let Some(item) = cx.read_from_clipboard() {
6995 let entries = item.entries();
6996
6997 match entries.first() {
6998 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
6999 // of all the pasted entries.
7000 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7001 .do_paste(
7002 clipboard_string.text(),
7003 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7004 true,
7005 cx,
7006 ),
7007 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7008 }
7009 }
7010 }
7011
7012 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7013 if self.read_only(cx) {
7014 return;
7015 }
7016
7017 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7018 if let Some((selections, _)) =
7019 self.selection_history.transaction(transaction_id).cloned()
7020 {
7021 self.change_selections(None, cx, |s| {
7022 s.select_anchors(selections.to_vec());
7023 });
7024 }
7025 self.request_autoscroll(Autoscroll::fit(), cx);
7026 self.unmark_text(cx);
7027 self.refresh_inline_completion(true, false, cx);
7028 cx.emit(EditorEvent::Edited { transaction_id });
7029 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7030 }
7031 }
7032
7033 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7034 if self.read_only(cx) {
7035 return;
7036 }
7037
7038 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7039 if let Some((_, Some(selections))) =
7040 self.selection_history.transaction(transaction_id).cloned()
7041 {
7042 self.change_selections(None, cx, |s| {
7043 s.select_anchors(selections.to_vec());
7044 });
7045 }
7046 self.request_autoscroll(Autoscroll::fit(), cx);
7047 self.unmark_text(cx);
7048 self.refresh_inline_completion(true, false, cx);
7049 cx.emit(EditorEvent::Edited { transaction_id });
7050 }
7051 }
7052
7053 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7054 self.buffer
7055 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7056 }
7057
7058 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7059 self.buffer
7060 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7061 }
7062
7063 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7064 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7065 let line_mode = s.line_mode;
7066 s.move_with(|map, selection| {
7067 let cursor = if selection.is_empty() && !line_mode {
7068 movement::left(map, selection.start)
7069 } else {
7070 selection.start
7071 };
7072 selection.collapse_to(cursor, SelectionGoal::None);
7073 });
7074 })
7075 }
7076
7077 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7078 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7079 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7080 })
7081 }
7082
7083 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7084 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7085 let line_mode = s.line_mode;
7086 s.move_with(|map, selection| {
7087 let cursor = if selection.is_empty() && !line_mode {
7088 movement::right(map, selection.end)
7089 } else {
7090 selection.end
7091 };
7092 selection.collapse_to(cursor, SelectionGoal::None)
7093 });
7094 })
7095 }
7096
7097 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7098 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7099 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7100 })
7101 }
7102
7103 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7104 if self.take_rename(true, cx).is_some() {
7105 return;
7106 }
7107
7108 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7109 cx.propagate();
7110 return;
7111 }
7112
7113 let text_layout_details = &self.text_layout_details(cx);
7114 let selection_count = self.selections.count();
7115 let first_selection = self.selections.first_anchor();
7116
7117 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7118 let line_mode = s.line_mode;
7119 s.move_with(|map, selection| {
7120 if !selection.is_empty() && !line_mode {
7121 selection.goal = SelectionGoal::None;
7122 }
7123 let (cursor, goal) = movement::up(
7124 map,
7125 selection.start,
7126 selection.goal,
7127 false,
7128 text_layout_details,
7129 );
7130 selection.collapse_to(cursor, goal);
7131 });
7132 });
7133
7134 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7135 {
7136 cx.propagate();
7137 }
7138 }
7139
7140 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7141 if self.take_rename(true, cx).is_some() {
7142 return;
7143 }
7144
7145 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7146 cx.propagate();
7147 return;
7148 }
7149
7150 let text_layout_details = &self.text_layout_details(cx);
7151
7152 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7153 let line_mode = s.line_mode;
7154 s.move_with(|map, selection| {
7155 if !selection.is_empty() && !line_mode {
7156 selection.goal = SelectionGoal::None;
7157 }
7158 let (cursor, goal) = movement::up_by_rows(
7159 map,
7160 selection.start,
7161 action.lines,
7162 selection.goal,
7163 false,
7164 text_layout_details,
7165 );
7166 selection.collapse_to(cursor, goal);
7167 });
7168 })
7169 }
7170
7171 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7172 if self.take_rename(true, cx).is_some() {
7173 return;
7174 }
7175
7176 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7177 cx.propagate();
7178 return;
7179 }
7180
7181 let text_layout_details = &self.text_layout_details(cx);
7182
7183 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7184 let line_mode = s.line_mode;
7185 s.move_with(|map, selection| {
7186 if !selection.is_empty() && !line_mode {
7187 selection.goal = SelectionGoal::None;
7188 }
7189 let (cursor, goal) = movement::down_by_rows(
7190 map,
7191 selection.start,
7192 action.lines,
7193 selection.goal,
7194 false,
7195 text_layout_details,
7196 );
7197 selection.collapse_to(cursor, goal);
7198 });
7199 })
7200 }
7201
7202 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7203 let text_layout_details = &self.text_layout_details(cx);
7204 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7205 s.move_heads_with(|map, head, goal| {
7206 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7207 })
7208 })
7209 }
7210
7211 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7212 let text_layout_details = &self.text_layout_details(cx);
7213 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7214 s.move_heads_with(|map, head, goal| {
7215 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7216 })
7217 })
7218 }
7219
7220 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7221 let Some(row_count) = self.visible_row_count() else {
7222 return;
7223 };
7224
7225 let text_layout_details = &self.text_layout_details(cx);
7226
7227 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7228 s.move_heads_with(|map, head, goal| {
7229 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7230 })
7231 })
7232 }
7233
7234 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7235 if self.take_rename(true, cx).is_some() {
7236 return;
7237 }
7238
7239 if self
7240 .context_menu
7241 .borrow_mut()
7242 .as_mut()
7243 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7244 .unwrap_or(false)
7245 {
7246 return;
7247 }
7248
7249 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7250 cx.propagate();
7251 return;
7252 }
7253
7254 let Some(row_count) = self.visible_row_count() else {
7255 return;
7256 };
7257
7258 let autoscroll = if action.center_cursor {
7259 Autoscroll::center()
7260 } else {
7261 Autoscroll::fit()
7262 };
7263
7264 let text_layout_details = &self.text_layout_details(cx);
7265
7266 self.change_selections(Some(autoscroll), cx, |s| {
7267 let line_mode = s.line_mode;
7268 s.move_with(|map, selection| {
7269 if !selection.is_empty() && !line_mode {
7270 selection.goal = SelectionGoal::None;
7271 }
7272 let (cursor, goal) = movement::up_by_rows(
7273 map,
7274 selection.end,
7275 row_count,
7276 selection.goal,
7277 false,
7278 text_layout_details,
7279 );
7280 selection.collapse_to(cursor, goal);
7281 });
7282 });
7283 }
7284
7285 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7286 let text_layout_details = &self.text_layout_details(cx);
7287 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7288 s.move_heads_with(|map, head, goal| {
7289 movement::up(map, head, goal, false, text_layout_details)
7290 })
7291 })
7292 }
7293
7294 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7295 self.take_rename(true, cx);
7296
7297 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7298 cx.propagate();
7299 return;
7300 }
7301
7302 let text_layout_details = &self.text_layout_details(cx);
7303 let selection_count = self.selections.count();
7304 let first_selection = self.selections.first_anchor();
7305
7306 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7307 let line_mode = s.line_mode;
7308 s.move_with(|map, selection| {
7309 if !selection.is_empty() && !line_mode {
7310 selection.goal = SelectionGoal::None;
7311 }
7312 let (cursor, goal) = movement::down(
7313 map,
7314 selection.end,
7315 selection.goal,
7316 false,
7317 text_layout_details,
7318 );
7319 selection.collapse_to(cursor, goal);
7320 });
7321 });
7322
7323 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7324 {
7325 cx.propagate();
7326 }
7327 }
7328
7329 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7330 let Some(row_count) = self.visible_row_count() else {
7331 return;
7332 };
7333
7334 let text_layout_details = &self.text_layout_details(cx);
7335
7336 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7337 s.move_heads_with(|map, head, goal| {
7338 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7339 })
7340 })
7341 }
7342
7343 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7344 if self.take_rename(true, cx).is_some() {
7345 return;
7346 }
7347
7348 if self
7349 .context_menu
7350 .borrow_mut()
7351 .as_mut()
7352 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7353 .unwrap_or(false)
7354 {
7355 return;
7356 }
7357
7358 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7359 cx.propagate();
7360 return;
7361 }
7362
7363 let Some(row_count) = self.visible_row_count() else {
7364 return;
7365 };
7366
7367 let autoscroll = if action.center_cursor {
7368 Autoscroll::center()
7369 } else {
7370 Autoscroll::fit()
7371 };
7372
7373 let text_layout_details = &self.text_layout_details(cx);
7374 self.change_selections(Some(autoscroll), cx, |s| {
7375 let line_mode = s.line_mode;
7376 s.move_with(|map, selection| {
7377 if !selection.is_empty() && !line_mode {
7378 selection.goal = SelectionGoal::None;
7379 }
7380 let (cursor, goal) = movement::down_by_rows(
7381 map,
7382 selection.end,
7383 row_count,
7384 selection.goal,
7385 false,
7386 text_layout_details,
7387 );
7388 selection.collapse_to(cursor, goal);
7389 });
7390 });
7391 }
7392
7393 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7394 let text_layout_details = &self.text_layout_details(cx);
7395 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7396 s.move_heads_with(|map, head, goal| {
7397 movement::down(map, head, goal, false, text_layout_details)
7398 })
7399 });
7400 }
7401
7402 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7403 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7404 context_menu.select_first(self.completion_provider.as_deref(), cx);
7405 }
7406 }
7407
7408 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7409 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7410 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7411 }
7412 }
7413
7414 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7415 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7416 context_menu.select_next(self.completion_provider.as_deref(), cx);
7417 }
7418 }
7419
7420 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7421 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7422 context_menu.select_last(self.completion_provider.as_deref(), cx);
7423 }
7424 }
7425
7426 pub fn move_to_previous_word_start(
7427 &mut self,
7428 _: &MoveToPreviousWordStart,
7429 cx: &mut ViewContext<Self>,
7430 ) {
7431 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7432 s.move_cursors_with(|map, head, _| {
7433 (
7434 movement::previous_word_start(map, head),
7435 SelectionGoal::None,
7436 )
7437 });
7438 })
7439 }
7440
7441 pub fn move_to_previous_subword_start(
7442 &mut self,
7443 _: &MoveToPreviousSubwordStart,
7444 cx: &mut ViewContext<Self>,
7445 ) {
7446 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7447 s.move_cursors_with(|map, head, _| {
7448 (
7449 movement::previous_subword_start(map, head),
7450 SelectionGoal::None,
7451 )
7452 });
7453 })
7454 }
7455
7456 pub fn select_to_previous_word_start(
7457 &mut self,
7458 _: &SelectToPreviousWordStart,
7459 cx: &mut ViewContext<Self>,
7460 ) {
7461 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7462 s.move_heads_with(|map, head, _| {
7463 (
7464 movement::previous_word_start(map, head),
7465 SelectionGoal::None,
7466 )
7467 });
7468 })
7469 }
7470
7471 pub fn select_to_previous_subword_start(
7472 &mut self,
7473 _: &SelectToPreviousSubwordStart,
7474 cx: &mut ViewContext<Self>,
7475 ) {
7476 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7477 s.move_heads_with(|map, head, _| {
7478 (
7479 movement::previous_subword_start(map, head),
7480 SelectionGoal::None,
7481 )
7482 });
7483 })
7484 }
7485
7486 pub fn delete_to_previous_word_start(
7487 &mut self,
7488 action: &DeleteToPreviousWordStart,
7489 cx: &mut ViewContext<Self>,
7490 ) {
7491 self.transact(cx, |this, cx| {
7492 this.select_autoclose_pair(cx);
7493 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7494 let line_mode = s.line_mode;
7495 s.move_with(|map, selection| {
7496 if selection.is_empty() && !line_mode {
7497 let cursor = if action.ignore_newlines {
7498 movement::previous_word_start(map, selection.head())
7499 } else {
7500 movement::previous_word_start_or_newline(map, selection.head())
7501 };
7502 selection.set_head(cursor, SelectionGoal::None);
7503 }
7504 });
7505 });
7506 this.insert("", cx);
7507 });
7508 }
7509
7510 pub fn delete_to_previous_subword_start(
7511 &mut self,
7512 _: &DeleteToPreviousSubwordStart,
7513 cx: &mut ViewContext<Self>,
7514 ) {
7515 self.transact(cx, |this, cx| {
7516 this.select_autoclose_pair(cx);
7517 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7518 let line_mode = s.line_mode;
7519 s.move_with(|map, selection| {
7520 if selection.is_empty() && !line_mode {
7521 let cursor = movement::previous_subword_start(map, selection.head());
7522 selection.set_head(cursor, SelectionGoal::None);
7523 }
7524 });
7525 });
7526 this.insert("", cx);
7527 });
7528 }
7529
7530 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7531 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7532 s.move_cursors_with(|map, head, _| {
7533 (movement::next_word_end(map, head), SelectionGoal::None)
7534 });
7535 })
7536 }
7537
7538 pub fn move_to_next_subword_end(
7539 &mut self,
7540 _: &MoveToNextSubwordEnd,
7541 cx: &mut ViewContext<Self>,
7542 ) {
7543 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7544 s.move_cursors_with(|map, head, _| {
7545 (movement::next_subword_end(map, head), SelectionGoal::None)
7546 });
7547 })
7548 }
7549
7550 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7551 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7552 s.move_heads_with(|map, head, _| {
7553 (movement::next_word_end(map, head), SelectionGoal::None)
7554 });
7555 })
7556 }
7557
7558 pub fn select_to_next_subword_end(
7559 &mut self,
7560 _: &SelectToNextSubwordEnd,
7561 cx: &mut ViewContext<Self>,
7562 ) {
7563 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7564 s.move_heads_with(|map, head, _| {
7565 (movement::next_subword_end(map, head), SelectionGoal::None)
7566 });
7567 })
7568 }
7569
7570 pub fn delete_to_next_word_end(
7571 &mut self,
7572 action: &DeleteToNextWordEnd,
7573 cx: &mut ViewContext<Self>,
7574 ) {
7575 self.transact(cx, |this, cx| {
7576 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7577 let line_mode = s.line_mode;
7578 s.move_with(|map, selection| {
7579 if selection.is_empty() && !line_mode {
7580 let cursor = if action.ignore_newlines {
7581 movement::next_word_end(map, selection.head())
7582 } else {
7583 movement::next_word_end_or_newline(map, selection.head())
7584 };
7585 selection.set_head(cursor, SelectionGoal::None);
7586 }
7587 });
7588 });
7589 this.insert("", cx);
7590 });
7591 }
7592
7593 pub fn delete_to_next_subword_end(
7594 &mut self,
7595 _: &DeleteToNextSubwordEnd,
7596 cx: &mut ViewContext<Self>,
7597 ) {
7598 self.transact(cx, |this, cx| {
7599 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7600 s.move_with(|map, selection| {
7601 if selection.is_empty() {
7602 let cursor = movement::next_subword_end(map, selection.head());
7603 selection.set_head(cursor, SelectionGoal::None);
7604 }
7605 });
7606 });
7607 this.insert("", cx);
7608 });
7609 }
7610
7611 pub fn move_to_beginning_of_line(
7612 &mut self,
7613 action: &MoveToBeginningOfLine,
7614 cx: &mut ViewContext<Self>,
7615 ) {
7616 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7617 s.move_cursors_with(|map, head, _| {
7618 (
7619 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7620 SelectionGoal::None,
7621 )
7622 });
7623 })
7624 }
7625
7626 pub fn select_to_beginning_of_line(
7627 &mut self,
7628 action: &SelectToBeginningOfLine,
7629 cx: &mut ViewContext<Self>,
7630 ) {
7631 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7632 s.move_heads_with(|map, head, _| {
7633 (
7634 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7635 SelectionGoal::None,
7636 )
7637 });
7638 });
7639 }
7640
7641 pub fn delete_to_beginning_of_line(
7642 &mut self,
7643 _: &DeleteToBeginningOfLine,
7644 cx: &mut ViewContext<Self>,
7645 ) {
7646 self.transact(cx, |this, cx| {
7647 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7648 s.move_with(|_, selection| {
7649 selection.reversed = true;
7650 });
7651 });
7652
7653 this.select_to_beginning_of_line(
7654 &SelectToBeginningOfLine {
7655 stop_at_soft_wraps: false,
7656 },
7657 cx,
7658 );
7659 this.backspace(&Backspace, cx);
7660 });
7661 }
7662
7663 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7664 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7665 s.move_cursors_with(|map, head, _| {
7666 (
7667 movement::line_end(map, head, action.stop_at_soft_wraps),
7668 SelectionGoal::None,
7669 )
7670 });
7671 })
7672 }
7673
7674 pub fn select_to_end_of_line(
7675 &mut self,
7676 action: &SelectToEndOfLine,
7677 cx: &mut ViewContext<Self>,
7678 ) {
7679 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7680 s.move_heads_with(|map, head, _| {
7681 (
7682 movement::line_end(map, head, action.stop_at_soft_wraps),
7683 SelectionGoal::None,
7684 )
7685 });
7686 })
7687 }
7688
7689 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7690 self.transact(cx, |this, cx| {
7691 this.select_to_end_of_line(
7692 &SelectToEndOfLine {
7693 stop_at_soft_wraps: false,
7694 },
7695 cx,
7696 );
7697 this.delete(&Delete, cx);
7698 });
7699 }
7700
7701 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7702 self.transact(cx, |this, cx| {
7703 this.select_to_end_of_line(
7704 &SelectToEndOfLine {
7705 stop_at_soft_wraps: false,
7706 },
7707 cx,
7708 );
7709 this.cut(&Cut, cx);
7710 });
7711 }
7712
7713 pub fn move_to_start_of_paragraph(
7714 &mut self,
7715 _: &MoveToStartOfParagraph,
7716 cx: &mut ViewContext<Self>,
7717 ) {
7718 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7719 cx.propagate();
7720 return;
7721 }
7722
7723 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7724 s.move_with(|map, selection| {
7725 selection.collapse_to(
7726 movement::start_of_paragraph(map, selection.head(), 1),
7727 SelectionGoal::None,
7728 )
7729 });
7730 })
7731 }
7732
7733 pub fn move_to_end_of_paragraph(
7734 &mut self,
7735 _: &MoveToEndOfParagraph,
7736 cx: &mut ViewContext<Self>,
7737 ) {
7738 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7739 cx.propagate();
7740 return;
7741 }
7742
7743 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7744 s.move_with(|map, selection| {
7745 selection.collapse_to(
7746 movement::end_of_paragraph(map, selection.head(), 1),
7747 SelectionGoal::None,
7748 )
7749 });
7750 })
7751 }
7752
7753 pub fn select_to_start_of_paragraph(
7754 &mut self,
7755 _: &SelectToStartOfParagraph,
7756 cx: &mut ViewContext<Self>,
7757 ) {
7758 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7759 cx.propagate();
7760 return;
7761 }
7762
7763 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7764 s.move_heads_with(|map, head, _| {
7765 (
7766 movement::start_of_paragraph(map, head, 1),
7767 SelectionGoal::None,
7768 )
7769 });
7770 })
7771 }
7772
7773 pub fn select_to_end_of_paragraph(
7774 &mut self,
7775 _: &SelectToEndOfParagraph,
7776 cx: &mut ViewContext<Self>,
7777 ) {
7778 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7779 cx.propagate();
7780 return;
7781 }
7782
7783 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7784 s.move_heads_with(|map, head, _| {
7785 (
7786 movement::end_of_paragraph(map, head, 1),
7787 SelectionGoal::None,
7788 )
7789 });
7790 })
7791 }
7792
7793 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7794 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7795 cx.propagate();
7796 return;
7797 }
7798
7799 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7800 s.select_ranges(vec![0..0]);
7801 });
7802 }
7803
7804 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7805 let mut selection = self.selections.last::<Point>(cx);
7806 selection.set_head(Point::zero(), SelectionGoal::None);
7807
7808 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7809 s.select(vec![selection]);
7810 });
7811 }
7812
7813 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7814 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7815 cx.propagate();
7816 return;
7817 }
7818
7819 let cursor = self.buffer.read(cx).read(cx).len();
7820 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7821 s.select_ranges(vec![cursor..cursor])
7822 });
7823 }
7824
7825 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7826 self.nav_history = nav_history;
7827 }
7828
7829 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7830 self.nav_history.as_ref()
7831 }
7832
7833 fn push_to_nav_history(
7834 &mut self,
7835 cursor_anchor: Anchor,
7836 new_position: Option<Point>,
7837 cx: &mut ViewContext<Self>,
7838 ) {
7839 if let Some(nav_history) = self.nav_history.as_mut() {
7840 let buffer = self.buffer.read(cx).read(cx);
7841 let cursor_position = cursor_anchor.to_point(&buffer);
7842 let scroll_state = self.scroll_manager.anchor();
7843 let scroll_top_row = scroll_state.top_row(&buffer);
7844 drop(buffer);
7845
7846 if let Some(new_position) = new_position {
7847 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7848 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7849 return;
7850 }
7851 }
7852
7853 nav_history.push(
7854 Some(NavigationData {
7855 cursor_anchor,
7856 cursor_position,
7857 scroll_anchor: scroll_state,
7858 scroll_top_row,
7859 }),
7860 cx,
7861 );
7862 }
7863 }
7864
7865 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7866 let buffer = self.buffer.read(cx).snapshot(cx);
7867 let mut selection = self.selections.first::<usize>(cx);
7868 selection.set_head(buffer.len(), SelectionGoal::None);
7869 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7870 s.select(vec![selection]);
7871 });
7872 }
7873
7874 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7875 let end = self.buffer.read(cx).read(cx).len();
7876 self.change_selections(None, cx, |s| {
7877 s.select_ranges(vec![0..end]);
7878 });
7879 }
7880
7881 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7882 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7883 let mut selections = self.selections.all::<Point>(cx);
7884 let max_point = display_map.buffer_snapshot.max_point();
7885 for selection in &mut selections {
7886 let rows = selection.spanned_rows(true, &display_map);
7887 selection.start = Point::new(rows.start.0, 0);
7888 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7889 selection.reversed = false;
7890 }
7891 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7892 s.select(selections);
7893 });
7894 }
7895
7896 pub fn split_selection_into_lines(
7897 &mut self,
7898 _: &SplitSelectionIntoLines,
7899 cx: &mut ViewContext<Self>,
7900 ) {
7901 let mut to_unfold = Vec::new();
7902 let mut new_selection_ranges = Vec::new();
7903 {
7904 let selections = self.selections.all::<Point>(cx);
7905 let buffer = self.buffer.read(cx).read(cx);
7906 for selection in selections {
7907 for row in selection.start.row..selection.end.row {
7908 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7909 new_selection_ranges.push(cursor..cursor);
7910 }
7911 new_selection_ranges.push(selection.end..selection.end);
7912 to_unfold.push(selection.start..selection.end);
7913 }
7914 }
7915 self.unfold_ranges(&to_unfold, true, true, cx);
7916 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7917 s.select_ranges(new_selection_ranges);
7918 });
7919 }
7920
7921 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7922 self.add_selection(true, cx);
7923 }
7924
7925 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7926 self.add_selection(false, cx);
7927 }
7928
7929 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7930 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7931 let mut selections = self.selections.all::<Point>(cx);
7932 let text_layout_details = self.text_layout_details(cx);
7933 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7934 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7935 let range = oldest_selection.display_range(&display_map).sorted();
7936
7937 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7938 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7939 let positions = start_x.min(end_x)..start_x.max(end_x);
7940
7941 selections.clear();
7942 let mut stack = Vec::new();
7943 for row in range.start.row().0..=range.end.row().0 {
7944 if let Some(selection) = self.selections.build_columnar_selection(
7945 &display_map,
7946 DisplayRow(row),
7947 &positions,
7948 oldest_selection.reversed,
7949 &text_layout_details,
7950 ) {
7951 stack.push(selection.id);
7952 selections.push(selection);
7953 }
7954 }
7955
7956 if above {
7957 stack.reverse();
7958 }
7959
7960 AddSelectionsState { above, stack }
7961 });
7962
7963 let last_added_selection = *state.stack.last().unwrap();
7964 let mut new_selections = Vec::new();
7965 if above == state.above {
7966 let end_row = if above {
7967 DisplayRow(0)
7968 } else {
7969 display_map.max_point().row()
7970 };
7971
7972 'outer: for selection in selections {
7973 if selection.id == last_added_selection {
7974 let range = selection.display_range(&display_map).sorted();
7975 debug_assert_eq!(range.start.row(), range.end.row());
7976 let mut row = range.start.row();
7977 let positions =
7978 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7979 px(start)..px(end)
7980 } else {
7981 let start_x =
7982 display_map.x_for_display_point(range.start, &text_layout_details);
7983 let end_x =
7984 display_map.x_for_display_point(range.end, &text_layout_details);
7985 start_x.min(end_x)..start_x.max(end_x)
7986 };
7987
7988 while row != end_row {
7989 if above {
7990 row.0 -= 1;
7991 } else {
7992 row.0 += 1;
7993 }
7994
7995 if let Some(new_selection) = self.selections.build_columnar_selection(
7996 &display_map,
7997 row,
7998 &positions,
7999 selection.reversed,
8000 &text_layout_details,
8001 ) {
8002 state.stack.push(new_selection.id);
8003 if above {
8004 new_selections.push(new_selection);
8005 new_selections.push(selection);
8006 } else {
8007 new_selections.push(selection);
8008 new_selections.push(new_selection);
8009 }
8010
8011 continue 'outer;
8012 }
8013 }
8014 }
8015
8016 new_selections.push(selection);
8017 }
8018 } else {
8019 new_selections = selections;
8020 new_selections.retain(|s| s.id != last_added_selection);
8021 state.stack.pop();
8022 }
8023
8024 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8025 s.select(new_selections);
8026 });
8027 if state.stack.len() > 1 {
8028 self.add_selections_state = Some(state);
8029 }
8030 }
8031
8032 pub fn select_next_match_internal(
8033 &mut self,
8034 display_map: &DisplaySnapshot,
8035 replace_newest: bool,
8036 autoscroll: Option<Autoscroll>,
8037 cx: &mut ViewContext<Self>,
8038 ) -> Result<()> {
8039 fn select_next_match_ranges(
8040 this: &mut Editor,
8041 range: Range<usize>,
8042 replace_newest: bool,
8043 auto_scroll: Option<Autoscroll>,
8044 cx: &mut ViewContext<Editor>,
8045 ) {
8046 this.unfold_ranges(&[range.clone()], false, true, cx);
8047 this.change_selections(auto_scroll, cx, |s| {
8048 if replace_newest {
8049 s.delete(s.newest_anchor().id);
8050 }
8051 s.insert_range(range.clone());
8052 });
8053 }
8054
8055 let buffer = &display_map.buffer_snapshot;
8056 let mut selections = self.selections.all::<usize>(cx);
8057 if let Some(mut select_next_state) = self.select_next_state.take() {
8058 let query = &select_next_state.query;
8059 if !select_next_state.done {
8060 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8061 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8062 let mut next_selected_range = None;
8063
8064 let bytes_after_last_selection =
8065 buffer.bytes_in_range(last_selection.end..buffer.len());
8066 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8067 let query_matches = query
8068 .stream_find_iter(bytes_after_last_selection)
8069 .map(|result| (last_selection.end, result))
8070 .chain(
8071 query
8072 .stream_find_iter(bytes_before_first_selection)
8073 .map(|result| (0, result)),
8074 );
8075
8076 for (start_offset, query_match) in query_matches {
8077 let query_match = query_match.unwrap(); // can only fail due to I/O
8078 let offset_range =
8079 start_offset + query_match.start()..start_offset + query_match.end();
8080 let display_range = offset_range.start.to_display_point(display_map)
8081 ..offset_range.end.to_display_point(display_map);
8082
8083 if !select_next_state.wordwise
8084 || (!movement::is_inside_word(display_map, display_range.start)
8085 && !movement::is_inside_word(display_map, display_range.end))
8086 {
8087 // TODO: This is n^2, because we might check all the selections
8088 if !selections
8089 .iter()
8090 .any(|selection| selection.range().overlaps(&offset_range))
8091 {
8092 next_selected_range = Some(offset_range);
8093 break;
8094 }
8095 }
8096 }
8097
8098 if let Some(next_selected_range) = next_selected_range {
8099 select_next_match_ranges(
8100 self,
8101 next_selected_range,
8102 replace_newest,
8103 autoscroll,
8104 cx,
8105 );
8106 } else {
8107 select_next_state.done = true;
8108 }
8109 }
8110
8111 self.select_next_state = Some(select_next_state);
8112 } else {
8113 let mut only_carets = true;
8114 let mut same_text_selected = true;
8115 let mut selected_text = None;
8116
8117 let mut selections_iter = selections.iter().peekable();
8118 while let Some(selection) = selections_iter.next() {
8119 if selection.start != selection.end {
8120 only_carets = false;
8121 }
8122
8123 if same_text_selected {
8124 if selected_text.is_none() {
8125 selected_text =
8126 Some(buffer.text_for_range(selection.range()).collect::<String>());
8127 }
8128
8129 if let Some(next_selection) = selections_iter.peek() {
8130 if next_selection.range().len() == selection.range().len() {
8131 let next_selected_text = buffer
8132 .text_for_range(next_selection.range())
8133 .collect::<String>();
8134 if Some(next_selected_text) != selected_text {
8135 same_text_selected = false;
8136 selected_text = None;
8137 }
8138 } else {
8139 same_text_selected = false;
8140 selected_text = None;
8141 }
8142 }
8143 }
8144 }
8145
8146 if only_carets {
8147 for selection in &mut selections {
8148 let word_range = movement::surrounding_word(
8149 display_map,
8150 selection.start.to_display_point(display_map),
8151 );
8152 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8153 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8154 selection.goal = SelectionGoal::None;
8155 selection.reversed = false;
8156 select_next_match_ranges(
8157 self,
8158 selection.start..selection.end,
8159 replace_newest,
8160 autoscroll,
8161 cx,
8162 );
8163 }
8164
8165 if selections.len() == 1 {
8166 let selection = selections
8167 .last()
8168 .expect("ensured that there's only one selection");
8169 let query = buffer
8170 .text_for_range(selection.start..selection.end)
8171 .collect::<String>();
8172 let is_empty = query.is_empty();
8173 let select_state = SelectNextState {
8174 query: AhoCorasick::new(&[query])?,
8175 wordwise: true,
8176 done: is_empty,
8177 };
8178 self.select_next_state = Some(select_state);
8179 } else {
8180 self.select_next_state = None;
8181 }
8182 } else if let Some(selected_text) = selected_text {
8183 self.select_next_state = Some(SelectNextState {
8184 query: AhoCorasick::new(&[selected_text])?,
8185 wordwise: false,
8186 done: false,
8187 });
8188 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8189 }
8190 }
8191 Ok(())
8192 }
8193
8194 pub fn select_all_matches(
8195 &mut self,
8196 _action: &SelectAllMatches,
8197 cx: &mut ViewContext<Self>,
8198 ) -> Result<()> {
8199 self.push_to_selection_history();
8200 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8201
8202 self.select_next_match_internal(&display_map, false, None, cx)?;
8203 let Some(select_next_state) = self.select_next_state.as_mut() else {
8204 return Ok(());
8205 };
8206 if select_next_state.done {
8207 return Ok(());
8208 }
8209
8210 let mut new_selections = self.selections.all::<usize>(cx);
8211
8212 let buffer = &display_map.buffer_snapshot;
8213 let query_matches = select_next_state
8214 .query
8215 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8216
8217 for query_match in query_matches {
8218 let query_match = query_match.unwrap(); // can only fail due to I/O
8219 let offset_range = query_match.start()..query_match.end();
8220 let display_range = offset_range.start.to_display_point(&display_map)
8221 ..offset_range.end.to_display_point(&display_map);
8222
8223 if !select_next_state.wordwise
8224 || (!movement::is_inside_word(&display_map, display_range.start)
8225 && !movement::is_inside_word(&display_map, display_range.end))
8226 {
8227 self.selections.change_with(cx, |selections| {
8228 new_selections.push(Selection {
8229 id: selections.new_selection_id(),
8230 start: offset_range.start,
8231 end: offset_range.end,
8232 reversed: false,
8233 goal: SelectionGoal::None,
8234 });
8235 });
8236 }
8237 }
8238
8239 new_selections.sort_by_key(|selection| selection.start);
8240 let mut ix = 0;
8241 while ix + 1 < new_selections.len() {
8242 let current_selection = &new_selections[ix];
8243 let next_selection = &new_selections[ix + 1];
8244 if current_selection.range().overlaps(&next_selection.range()) {
8245 if current_selection.id < next_selection.id {
8246 new_selections.remove(ix + 1);
8247 } else {
8248 new_selections.remove(ix);
8249 }
8250 } else {
8251 ix += 1;
8252 }
8253 }
8254
8255 select_next_state.done = true;
8256 self.unfold_ranges(
8257 &new_selections
8258 .iter()
8259 .map(|selection| selection.range())
8260 .collect::<Vec<_>>(),
8261 false,
8262 false,
8263 cx,
8264 );
8265 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8266 selections.select(new_selections)
8267 });
8268
8269 Ok(())
8270 }
8271
8272 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8273 self.push_to_selection_history();
8274 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8275 self.select_next_match_internal(
8276 &display_map,
8277 action.replace_newest,
8278 Some(Autoscroll::newest()),
8279 cx,
8280 )?;
8281 Ok(())
8282 }
8283
8284 pub fn select_previous(
8285 &mut self,
8286 action: &SelectPrevious,
8287 cx: &mut ViewContext<Self>,
8288 ) -> Result<()> {
8289 self.push_to_selection_history();
8290 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8291 let buffer = &display_map.buffer_snapshot;
8292 let mut selections = self.selections.all::<usize>(cx);
8293 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8294 let query = &select_prev_state.query;
8295 if !select_prev_state.done {
8296 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8297 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8298 let mut next_selected_range = None;
8299 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8300 let bytes_before_last_selection =
8301 buffer.reversed_bytes_in_range(0..last_selection.start);
8302 let bytes_after_first_selection =
8303 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8304 let query_matches = query
8305 .stream_find_iter(bytes_before_last_selection)
8306 .map(|result| (last_selection.start, result))
8307 .chain(
8308 query
8309 .stream_find_iter(bytes_after_first_selection)
8310 .map(|result| (buffer.len(), result)),
8311 );
8312 for (end_offset, query_match) in query_matches {
8313 let query_match = query_match.unwrap(); // can only fail due to I/O
8314 let offset_range =
8315 end_offset - query_match.end()..end_offset - query_match.start();
8316 let display_range = offset_range.start.to_display_point(&display_map)
8317 ..offset_range.end.to_display_point(&display_map);
8318
8319 if !select_prev_state.wordwise
8320 || (!movement::is_inside_word(&display_map, display_range.start)
8321 && !movement::is_inside_word(&display_map, display_range.end))
8322 {
8323 next_selected_range = Some(offset_range);
8324 break;
8325 }
8326 }
8327
8328 if let Some(next_selected_range) = next_selected_range {
8329 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8330 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8331 if action.replace_newest {
8332 s.delete(s.newest_anchor().id);
8333 }
8334 s.insert_range(next_selected_range);
8335 });
8336 } else {
8337 select_prev_state.done = true;
8338 }
8339 }
8340
8341 self.select_prev_state = Some(select_prev_state);
8342 } else {
8343 let mut only_carets = true;
8344 let mut same_text_selected = true;
8345 let mut selected_text = None;
8346
8347 let mut selections_iter = selections.iter().peekable();
8348 while let Some(selection) = selections_iter.next() {
8349 if selection.start != selection.end {
8350 only_carets = false;
8351 }
8352
8353 if same_text_selected {
8354 if selected_text.is_none() {
8355 selected_text =
8356 Some(buffer.text_for_range(selection.range()).collect::<String>());
8357 }
8358
8359 if let Some(next_selection) = selections_iter.peek() {
8360 if next_selection.range().len() == selection.range().len() {
8361 let next_selected_text = buffer
8362 .text_for_range(next_selection.range())
8363 .collect::<String>();
8364 if Some(next_selected_text) != selected_text {
8365 same_text_selected = false;
8366 selected_text = None;
8367 }
8368 } else {
8369 same_text_selected = false;
8370 selected_text = None;
8371 }
8372 }
8373 }
8374 }
8375
8376 if only_carets {
8377 for selection in &mut selections {
8378 let word_range = movement::surrounding_word(
8379 &display_map,
8380 selection.start.to_display_point(&display_map),
8381 );
8382 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8383 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8384 selection.goal = SelectionGoal::None;
8385 selection.reversed = false;
8386 }
8387 if selections.len() == 1 {
8388 let selection = selections
8389 .last()
8390 .expect("ensured that there's only one selection");
8391 let query = buffer
8392 .text_for_range(selection.start..selection.end)
8393 .collect::<String>();
8394 let is_empty = query.is_empty();
8395 let select_state = SelectNextState {
8396 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8397 wordwise: true,
8398 done: is_empty,
8399 };
8400 self.select_prev_state = Some(select_state);
8401 } else {
8402 self.select_prev_state = None;
8403 }
8404
8405 self.unfold_ranges(
8406 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8407 false,
8408 true,
8409 cx,
8410 );
8411 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8412 s.select(selections);
8413 });
8414 } else if let Some(selected_text) = selected_text {
8415 self.select_prev_state = Some(SelectNextState {
8416 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8417 wordwise: false,
8418 done: false,
8419 });
8420 self.select_previous(action, cx)?;
8421 }
8422 }
8423 Ok(())
8424 }
8425
8426 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8427 if self.read_only(cx) {
8428 return;
8429 }
8430 let text_layout_details = &self.text_layout_details(cx);
8431 self.transact(cx, |this, cx| {
8432 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8433 let mut edits = Vec::new();
8434 let mut selection_edit_ranges = Vec::new();
8435 let mut last_toggled_row = None;
8436 let snapshot = this.buffer.read(cx).read(cx);
8437 let empty_str: Arc<str> = Arc::default();
8438 let mut suffixes_inserted = Vec::new();
8439 let ignore_indent = action.ignore_indent;
8440
8441 fn comment_prefix_range(
8442 snapshot: &MultiBufferSnapshot,
8443 row: MultiBufferRow,
8444 comment_prefix: &str,
8445 comment_prefix_whitespace: &str,
8446 ignore_indent: bool,
8447 ) -> Range<Point> {
8448 let indent_size = if ignore_indent {
8449 0
8450 } else {
8451 snapshot.indent_size_for_line(row).len
8452 };
8453
8454 let start = Point::new(row.0, indent_size);
8455
8456 let mut line_bytes = snapshot
8457 .bytes_in_range(start..snapshot.max_point())
8458 .flatten()
8459 .copied();
8460
8461 // If this line currently begins with the line comment prefix, then record
8462 // the range containing the prefix.
8463 if line_bytes
8464 .by_ref()
8465 .take(comment_prefix.len())
8466 .eq(comment_prefix.bytes())
8467 {
8468 // Include any whitespace that matches the comment prefix.
8469 let matching_whitespace_len = line_bytes
8470 .zip(comment_prefix_whitespace.bytes())
8471 .take_while(|(a, b)| a == b)
8472 .count() as u32;
8473 let end = Point::new(
8474 start.row,
8475 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8476 );
8477 start..end
8478 } else {
8479 start..start
8480 }
8481 }
8482
8483 fn comment_suffix_range(
8484 snapshot: &MultiBufferSnapshot,
8485 row: MultiBufferRow,
8486 comment_suffix: &str,
8487 comment_suffix_has_leading_space: bool,
8488 ) -> Range<Point> {
8489 let end = Point::new(row.0, snapshot.line_len(row));
8490 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8491
8492 let mut line_end_bytes = snapshot
8493 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8494 .flatten()
8495 .copied();
8496
8497 let leading_space_len = if suffix_start_column > 0
8498 && line_end_bytes.next() == Some(b' ')
8499 && comment_suffix_has_leading_space
8500 {
8501 1
8502 } else {
8503 0
8504 };
8505
8506 // If this line currently begins with the line comment prefix, then record
8507 // the range containing the prefix.
8508 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8509 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8510 start..end
8511 } else {
8512 end..end
8513 }
8514 }
8515
8516 // TODO: Handle selections that cross excerpts
8517 for selection in &mut selections {
8518 let start_column = snapshot
8519 .indent_size_for_line(MultiBufferRow(selection.start.row))
8520 .len;
8521 let language = if let Some(language) =
8522 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8523 {
8524 language
8525 } else {
8526 continue;
8527 };
8528
8529 selection_edit_ranges.clear();
8530
8531 // If multiple selections contain a given row, avoid processing that
8532 // row more than once.
8533 let mut start_row = MultiBufferRow(selection.start.row);
8534 if last_toggled_row == Some(start_row) {
8535 start_row = start_row.next_row();
8536 }
8537 let end_row =
8538 if selection.end.row > selection.start.row && selection.end.column == 0 {
8539 MultiBufferRow(selection.end.row - 1)
8540 } else {
8541 MultiBufferRow(selection.end.row)
8542 };
8543 last_toggled_row = Some(end_row);
8544
8545 if start_row > end_row {
8546 continue;
8547 }
8548
8549 // If the language has line comments, toggle those.
8550 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8551
8552 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8553 if ignore_indent {
8554 full_comment_prefixes = full_comment_prefixes
8555 .into_iter()
8556 .map(|s| Arc::from(s.trim_end()))
8557 .collect();
8558 }
8559
8560 if !full_comment_prefixes.is_empty() {
8561 let first_prefix = full_comment_prefixes
8562 .first()
8563 .expect("prefixes is non-empty");
8564 let prefix_trimmed_lengths = full_comment_prefixes
8565 .iter()
8566 .map(|p| p.trim_end_matches(' ').len())
8567 .collect::<SmallVec<[usize; 4]>>();
8568
8569 let mut all_selection_lines_are_comments = true;
8570
8571 for row in start_row.0..=end_row.0 {
8572 let row = MultiBufferRow(row);
8573 if start_row < end_row && snapshot.is_line_blank(row) {
8574 continue;
8575 }
8576
8577 let prefix_range = full_comment_prefixes
8578 .iter()
8579 .zip(prefix_trimmed_lengths.iter().copied())
8580 .map(|(prefix, trimmed_prefix_len)| {
8581 comment_prefix_range(
8582 snapshot.deref(),
8583 row,
8584 &prefix[..trimmed_prefix_len],
8585 &prefix[trimmed_prefix_len..],
8586 ignore_indent,
8587 )
8588 })
8589 .max_by_key(|range| range.end.column - range.start.column)
8590 .expect("prefixes is non-empty");
8591
8592 if prefix_range.is_empty() {
8593 all_selection_lines_are_comments = false;
8594 }
8595
8596 selection_edit_ranges.push(prefix_range);
8597 }
8598
8599 if all_selection_lines_are_comments {
8600 edits.extend(
8601 selection_edit_ranges
8602 .iter()
8603 .cloned()
8604 .map(|range| (range, empty_str.clone())),
8605 );
8606 } else {
8607 let min_column = selection_edit_ranges
8608 .iter()
8609 .map(|range| range.start.column)
8610 .min()
8611 .unwrap_or(0);
8612 edits.extend(selection_edit_ranges.iter().map(|range| {
8613 let position = Point::new(range.start.row, min_column);
8614 (position..position, first_prefix.clone())
8615 }));
8616 }
8617 } else if let Some((full_comment_prefix, comment_suffix)) =
8618 language.block_comment_delimiters()
8619 {
8620 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8621 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8622 let prefix_range = comment_prefix_range(
8623 snapshot.deref(),
8624 start_row,
8625 comment_prefix,
8626 comment_prefix_whitespace,
8627 ignore_indent,
8628 );
8629 let suffix_range = comment_suffix_range(
8630 snapshot.deref(),
8631 end_row,
8632 comment_suffix.trim_start_matches(' '),
8633 comment_suffix.starts_with(' '),
8634 );
8635
8636 if prefix_range.is_empty() || suffix_range.is_empty() {
8637 edits.push((
8638 prefix_range.start..prefix_range.start,
8639 full_comment_prefix.clone(),
8640 ));
8641 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8642 suffixes_inserted.push((end_row, comment_suffix.len()));
8643 } else {
8644 edits.push((prefix_range, empty_str.clone()));
8645 edits.push((suffix_range, empty_str.clone()));
8646 }
8647 } else {
8648 continue;
8649 }
8650 }
8651
8652 drop(snapshot);
8653 this.buffer.update(cx, |buffer, cx| {
8654 buffer.edit(edits, None, cx);
8655 });
8656
8657 // Adjust selections so that they end before any comment suffixes that
8658 // were inserted.
8659 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8660 let mut selections = this.selections.all::<Point>(cx);
8661 let snapshot = this.buffer.read(cx).read(cx);
8662 for selection in &mut selections {
8663 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8664 match row.cmp(&MultiBufferRow(selection.end.row)) {
8665 Ordering::Less => {
8666 suffixes_inserted.next();
8667 continue;
8668 }
8669 Ordering::Greater => break,
8670 Ordering::Equal => {
8671 if selection.end.column == snapshot.line_len(row) {
8672 if selection.is_empty() {
8673 selection.start.column -= suffix_len as u32;
8674 }
8675 selection.end.column -= suffix_len as u32;
8676 }
8677 break;
8678 }
8679 }
8680 }
8681 }
8682
8683 drop(snapshot);
8684 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8685
8686 let selections = this.selections.all::<Point>(cx);
8687 let selections_on_single_row = selections.windows(2).all(|selections| {
8688 selections[0].start.row == selections[1].start.row
8689 && selections[0].end.row == selections[1].end.row
8690 && selections[0].start.row == selections[0].end.row
8691 });
8692 let selections_selecting = selections
8693 .iter()
8694 .any(|selection| selection.start != selection.end);
8695 let advance_downwards = action.advance_downwards
8696 && selections_on_single_row
8697 && !selections_selecting
8698 && !matches!(this.mode, EditorMode::SingleLine { .. });
8699
8700 if advance_downwards {
8701 let snapshot = this.buffer.read(cx).snapshot(cx);
8702
8703 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8704 s.move_cursors_with(|display_snapshot, display_point, _| {
8705 let mut point = display_point.to_point(display_snapshot);
8706 point.row += 1;
8707 point = snapshot.clip_point(point, Bias::Left);
8708 let display_point = point.to_display_point(display_snapshot);
8709 let goal = SelectionGoal::HorizontalPosition(
8710 display_snapshot
8711 .x_for_display_point(display_point, text_layout_details)
8712 .into(),
8713 );
8714 (display_point, goal)
8715 })
8716 });
8717 }
8718 });
8719 }
8720
8721 pub fn select_enclosing_symbol(
8722 &mut self,
8723 _: &SelectEnclosingSymbol,
8724 cx: &mut ViewContext<Self>,
8725 ) {
8726 let buffer = self.buffer.read(cx).snapshot(cx);
8727 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8728
8729 fn update_selection(
8730 selection: &Selection<usize>,
8731 buffer_snap: &MultiBufferSnapshot,
8732 ) -> Option<Selection<usize>> {
8733 let cursor = selection.head();
8734 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8735 for symbol in symbols.iter().rev() {
8736 let start = symbol.range.start.to_offset(buffer_snap);
8737 let end = symbol.range.end.to_offset(buffer_snap);
8738 let new_range = start..end;
8739 if start < selection.start || end > selection.end {
8740 return Some(Selection {
8741 id: selection.id,
8742 start: new_range.start,
8743 end: new_range.end,
8744 goal: SelectionGoal::None,
8745 reversed: selection.reversed,
8746 });
8747 }
8748 }
8749 None
8750 }
8751
8752 let mut selected_larger_symbol = false;
8753 let new_selections = old_selections
8754 .iter()
8755 .map(|selection| match update_selection(selection, &buffer) {
8756 Some(new_selection) => {
8757 if new_selection.range() != selection.range() {
8758 selected_larger_symbol = true;
8759 }
8760 new_selection
8761 }
8762 None => selection.clone(),
8763 })
8764 .collect::<Vec<_>>();
8765
8766 if selected_larger_symbol {
8767 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8768 s.select(new_selections);
8769 });
8770 }
8771 }
8772
8773 pub fn select_larger_syntax_node(
8774 &mut self,
8775 _: &SelectLargerSyntaxNode,
8776 cx: &mut ViewContext<Self>,
8777 ) {
8778 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8779 let buffer = self.buffer.read(cx).snapshot(cx);
8780 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8781
8782 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8783 let mut selected_larger_node = false;
8784 let new_selections = old_selections
8785 .iter()
8786 .map(|selection| {
8787 let old_range = selection.start..selection.end;
8788 let mut new_range = old_range.clone();
8789 let mut new_node = None;
8790 while let Some((node, containing_range)) = buffer.syntax_ancestor(new_range.clone())
8791 {
8792 new_node = Some(node);
8793 new_range = containing_range;
8794 if !display_map.intersects_fold(new_range.start)
8795 && !display_map.intersects_fold(new_range.end)
8796 {
8797 break;
8798 }
8799 }
8800
8801 if let Some(node) = new_node {
8802 // Log the ancestor, to support using this action as a way to explore TreeSitter
8803 // nodes. Parent and grandparent are also logged because this operation will not
8804 // visit nodes that have the same range as their parent.
8805 log::info!("Node: {node:?}");
8806 let parent = node.parent();
8807 log::info!("Parent: {parent:?}");
8808 let grandparent = parent.and_then(|x| x.parent());
8809 log::info!("Grandparent: {grandparent:?}");
8810 }
8811
8812 selected_larger_node |= new_range != old_range;
8813 Selection {
8814 id: selection.id,
8815 start: new_range.start,
8816 end: new_range.end,
8817 goal: SelectionGoal::None,
8818 reversed: selection.reversed,
8819 }
8820 })
8821 .collect::<Vec<_>>();
8822
8823 if selected_larger_node {
8824 stack.push(old_selections);
8825 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8826 s.select(new_selections);
8827 });
8828 }
8829 self.select_larger_syntax_node_stack = stack;
8830 }
8831
8832 pub fn select_smaller_syntax_node(
8833 &mut self,
8834 _: &SelectSmallerSyntaxNode,
8835 cx: &mut ViewContext<Self>,
8836 ) {
8837 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8838 if let Some(selections) = stack.pop() {
8839 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8840 s.select(selections.to_vec());
8841 });
8842 }
8843 self.select_larger_syntax_node_stack = stack;
8844 }
8845
8846 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8847 if !EditorSettings::get_global(cx).gutter.runnables {
8848 self.clear_tasks();
8849 return Task::ready(());
8850 }
8851 let project = self.project.as_ref().map(Model::downgrade);
8852 cx.spawn(|this, mut cx| async move {
8853 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8854 let Some(project) = project.and_then(|p| p.upgrade()) else {
8855 return;
8856 };
8857 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8858 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8859 }) else {
8860 return;
8861 };
8862
8863 let hide_runnables = project
8864 .update(&mut cx, |project, cx| {
8865 // Do not display any test indicators in non-dev server remote projects.
8866 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8867 })
8868 .unwrap_or(true);
8869 if hide_runnables {
8870 return;
8871 }
8872 let new_rows =
8873 cx.background_executor()
8874 .spawn({
8875 let snapshot = display_snapshot.clone();
8876 async move {
8877 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8878 }
8879 })
8880 .await;
8881 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8882
8883 this.update(&mut cx, |this, _| {
8884 this.clear_tasks();
8885 for (key, value) in rows {
8886 this.insert_tasks(key, value);
8887 }
8888 })
8889 .ok();
8890 })
8891 }
8892 fn fetch_runnable_ranges(
8893 snapshot: &DisplaySnapshot,
8894 range: Range<Anchor>,
8895 ) -> Vec<language::RunnableRange> {
8896 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8897 }
8898
8899 fn runnable_rows(
8900 project: Model<Project>,
8901 snapshot: DisplaySnapshot,
8902 runnable_ranges: Vec<RunnableRange>,
8903 mut cx: AsyncWindowContext,
8904 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8905 runnable_ranges
8906 .into_iter()
8907 .filter_map(|mut runnable| {
8908 let tasks = cx
8909 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8910 .ok()?;
8911 if tasks.is_empty() {
8912 return None;
8913 }
8914
8915 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8916
8917 let row = snapshot
8918 .buffer_snapshot
8919 .buffer_line_for_row(MultiBufferRow(point.row))?
8920 .1
8921 .start
8922 .row;
8923
8924 let context_range =
8925 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8926 Some((
8927 (runnable.buffer_id, row),
8928 RunnableTasks {
8929 templates: tasks,
8930 offset: MultiBufferOffset(runnable.run_range.start),
8931 context_range,
8932 column: point.column,
8933 extra_variables: runnable.extra_captures,
8934 },
8935 ))
8936 })
8937 .collect()
8938 }
8939
8940 fn templates_with_tags(
8941 project: &Model<Project>,
8942 runnable: &mut Runnable,
8943 cx: &WindowContext,
8944 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8945 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8946 let (worktree_id, file) = project
8947 .buffer_for_id(runnable.buffer, cx)
8948 .and_then(|buffer| buffer.read(cx).file())
8949 .map(|file| (file.worktree_id(cx), file.clone()))
8950 .unzip();
8951
8952 (
8953 project.task_store().read(cx).task_inventory().cloned(),
8954 worktree_id,
8955 file,
8956 )
8957 });
8958
8959 let tags = mem::take(&mut runnable.tags);
8960 let mut tags: Vec<_> = tags
8961 .into_iter()
8962 .flat_map(|tag| {
8963 let tag = tag.0.clone();
8964 inventory
8965 .as_ref()
8966 .into_iter()
8967 .flat_map(|inventory| {
8968 inventory.read(cx).list_tasks(
8969 file.clone(),
8970 Some(runnable.language.clone()),
8971 worktree_id,
8972 cx,
8973 )
8974 })
8975 .filter(move |(_, template)| {
8976 template.tags.iter().any(|source_tag| source_tag == &tag)
8977 })
8978 })
8979 .sorted_by_key(|(kind, _)| kind.to_owned())
8980 .collect();
8981 if let Some((leading_tag_source, _)) = tags.first() {
8982 // Strongest source wins; if we have worktree tag binding, prefer that to
8983 // global and language bindings;
8984 // if we have a global binding, prefer that to language binding.
8985 let first_mismatch = tags
8986 .iter()
8987 .position(|(tag_source, _)| tag_source != leading_tag_source);
8988 if let Some(index) = first_mismatch {
8989 tags.truncate(index);
8990 }
8991 }
8992
8993 tags
8994 }
8995
8996 pub fn move_to_enclosing_bracket(
8997 &mut self,
8998 _: &MoveToEnclosingBracket,
8999 cx: &mut ViewContext<Self>,
9000 ) {
9001 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9002 s.move_offsets_with(|snapshot, selection| {
9003 let Some(enclosing_bracket_ranges) =
9004 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9005 else {
9006 return;
9007 };
9008
9009 let mut best_length = usize::MAX;
9010 let mut best_inside = false;
9011 let mut best_in_bracket_range = false;
9012 let mut best_destination = None;
9013 for (open, close) in enclosing_bracket_ranges {
9014 let close = close.to_inclusive();
9015 let length = close.end() - open.start;
9016 let inside = selection.start >= open.end && selection.end <= *close.start();
9017 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9018 || close.contains(&selection.head());
9019
9020 // If best is next to a bracket and current isn't, skip
9021 if !in_bracket_range && best_in_bracket_range {
9022 continue;
9023 }
9024
9025 // Prefer smaller lengths unless best is inside and current isn't
9026 if length > best_length && (best_inside || !inside) {
9027 continue;
9028 }
9029
9030 best_length = length;
9031 best_inside = inside;
9032 best_in_bracket_range = in_bracket_range;
9033 best_destination = Some(
9034 if close.contains(&selection.start) && close.contains(&selection.end) {
9035 if inside {
9036 open.end
9037 } else {
9038 open.start
9039 }
9040 } else if inside {
9041 *close.start()
9042 } else {
9043 *close.end()
9044 },
9045 );
9046 }
9047
9048 if let Some(destination) = best_destination {
9049 selection.collapse_to(destination, SelectionGoal::None);
9050 }
9051 })
9052 });
9053 }
9054
9055 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9056 self.end_selection(cx);
9057 self.selection_history.mode = SelectionHistoryMode::Undoing;
9058 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9059 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9060 self.select_next_state = entry.select_next_state;
9061 self.select_prev_state = entry.select_prev_state;
9062 self.add_selections_state = entry.add_selections_state;
9063 self.request_autoscroll(Autoscroll::newest(), cx);
9064 }
9065 self.selection_history.mode = SelectionHistoryMode::Normal;
9066 }
9067
9068 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9069 self.end_selection(cx);
9070 self.selection_history.mode = SelectionHistoryMode::Redoing;
9071 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9072 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9073 self.select_next_state = entry.select_next_state;
9074 self.select_prev_state = entry.select_prev_state;
9075 self.add_selections_state = entry.add_selections_state;
9076 self.request_autoscroll(Autoscroll::newest(), cx);
9077 }
9078 self.selection_history.mode = SelectionHistoryMode::Normal;
9079 }
9080
9081 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9082 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9083 }
9084
9085 pub fn expand_excerpts_down(
9086 &mut self,
9087 action: &ExpandExcerptsDown,
9088 cx: &mut ViewContext<Self>,
9089 ) {
9090 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9091 }
9092
9093 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9094 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9095 }
9096
9097 pub fn expand_excerpts_for_direction(
9098 &mut self,
9099 lines: u32,
9100 direction: ExpandExcerptDirection,
9101 cx: &mut ViewContext<Self>,
9102 ) {
9103 let selections = self.selections.disjoint_anchors();
9104
9105 let lines = if lines == 0 {
9106 EditorSettings::get_global(cx).expand_excerpt_lines
9107 } else {
9108 lines
9109 };
9110
9111 self.buffer.update(cx, |buffer, cx| {
9112 buffer.expand_excerpts(
9113 selections
9114 .iter()
9115 .map(|selection| selection.head().excerpt_id)
9116 .dedup(),
9117 lines,
9118 direction,
9119 cx,
9120 )
9121 })
9122 }
9123
9124 pub fn expand_excerpt(
9125 &mut self,
9126 excerpt: ExcerptId,
9127 direction: ExpandExcerptDirection,
9128 cx: &mut ViewContext<Self>,
9129 ) {
9130 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9131 self.buffer.update(cx, |buffer, cx| {
9132 buffer.expand_excerpts([excerpt], lines, direction, cx)
9133 })
9134 }
9135
9136 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9137 self.go_to_diagnostic_impl(Direction::Next, cx)
9138 }
9139
9140 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9141 self.go_to_diagnostic_impl(Direction::Prev, cx)
9142 }
9143
9144 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9145 let buffer = self.buffer.read(cx).snapshot(cx);
9146 let selection = self.selections.newest::<usize>(cx);
9147
9148 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9149 if direction == Direction::Next {
9150 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9151 self.activate_diagnostics(popover.group_id(), cx);
9152 if let Some(active_diagnostics) = self.active_diagnostics.as_ref() {
9153 let primary_range_start = active_diagnostics.primary_range.start;
9154 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9155 let mut new_selection = s.newest_anchor().clone();
9156 new_selection.collapse_to(primary_range_start, SelectionGoal::None);
9157 s.select_anchors(vec![new_selection.clone()]);
9158 });
9159 }
9160 return;
9161 }
9162 }
9163
9164 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9165 active_diagnostics
9166 .primary_range
9167 .to_offset(&buffer)
9168 .to_inclusive()
9169 });
9170 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9171 if active_primary_range.contains(&selection.head()) {
9172 *active_primary_range.start()
9173 } else {
9174 selection.head()
9175 }
9176 } else {
9177 selection.head()
9178 };
9179 let snapshot = self.snapshot(cx);
9180 loop {
9181 let diagnostics = if direction == Direction::Prev {
9182 buffer
9183 .diagnostics_in_range(0..search_start, true)
9184 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9185 diagnostic,
9186 range: range.to_offset(&buffer),
9187 })
9188 .collect::<Vec<_>>()
9189 } else {
9190 buffer
9191 .diagnostics_in_range(search_start..buffer.len(), false)
9192 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9193 diagnostic,
9194 range: range.to_offset(&buffer),
9195 })
9196 .collect::<Vec<_>>()
9197 }
9198 .into_iter()
9199 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9200 let group = diagnostics
9201 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9202 // be sorted in a stable way
9203 // skip until we are at current active diagnostic, if it exists
9204 .skip_while(|entry| {
9205 (match direction {
9206 Direction::Prev => entry.range.start >= search_start,
9207 Direction::Next => entry.range.start <= search_start,
9208 }) && self
9209 .active_diagnostics
9210 .as_ref()
9211 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9212 })
9213 .find_map(|entry| {
9214 if entry.diagnostic.is_primary
9215 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9216 && !entry.range.is_empty()
9217 // if we match with the active diagnostic, skip it
9218 && Some(entry.diagnostic.group_id)
9219 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9220 {
9221 Some((entry.range, entry.diagnostic.group_id))
9222 } else {
9223 None
9224 }
9225 });
9226
9227 if let Some((primary_range, group_id)) = group {
9228 self.activate_diagnostics(group_id, cx);
9229 if self.active_diagnostics.is_some() {
9230 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9231 s.select(vec![Selection {
9232 id: selection.id,
9233 start: primary_range.start,
9234 end: primary_range.start,
9235 reversed: false,
9236 goal: SelectionGoal::None,
9237 }]);
9238 });
9239 }
9240 break;
9241 } else {
9242 // Cycle around to the start of the buffer, potentially moving back to the start of
9243 // the currently active diagnostic.
9244 active_primary_range.take();
9245 if direction == Direction::Prev {
9246 if search_start == buffer.len() {
9247 break;
9248 } else {
9249 search_start = buffer.len();
9250 }
9251 } else if search_start == 0 {
9252 break;
9253 } else {
9254 search_start = 0;
9255 }
9256 }
9257 }
9258 }
9259
9260 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9261 let snapshot = self.snapshot(cx);
9262 let selection = self.selections.newest::<Point>(cx);
9263 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9264 }
9265
9266 fn go_to_hunk_after_position(
9267 &mut self,
9268 snapshot: &EditorSnapshot,
9269 position: Point,
9270 cx: &mut ViewContext<Editor>,
9271 ) -> Option<MultiBufferDiffHunk> {
9272 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9273 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9274 snapshot,
9275 position,
9276 ix > 0,
9277 snapshot.diff_map.diff_hunks_in_range(
9278 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9279 &snapshot.buffer_snapshot,
9280 ),
9281 cx,
9282 ) {
9283 return Some(hunk);
9284 }
9285 }
9286 None
9287 }
9288
9289 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9290 let snapshot = self.snapshot(cx);
9291 let selection = self.selections.newest::<Point>(cx);
9292 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9293 }
9294
9295 fn go_to_hunk_before_position(
9296 &mut self,
9297 snapshot: &EditorSnapshot,
9298 position: Point,
9299 cx: &mut ViewContext<Editor>,
9300 ) -> Option<MultiBufferDiffHunk> {
9301 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9302 .into_iter()
9303 .enumerate()
9304 {
9305 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9306 snapshot,
9307 position,
9308 ix > 0,
9309 snapshot
9310 .diff_map
9311 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9312 cx,
9313 ) {
9314 return Some(hunk);
9315 }
9316 }
9317 None
9318 }
9319
9320 fn go_to_next_hunk_in_direction(
9321 &mut self,
9322 snapshot: &DisplaySnapshot,
9323 initial_point: Point,
9324 is_wrapped: bool,
9325 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9326 cx: &mut ViewContext<Editor>,
9327 ) -> Option<MultiBufferDiffHunk> {
9328 let display_point = initial_point.to_display_point(snapshot);
9329 let mut hunks = hunks
9330 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9331 .filter(|(display_hunk, _)| {
9332 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9333 })
9334 .dedup();
9335
9336 if let Some((display_hunk, hunk)) = hunks.next() {
9337 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9338 let row = display_hunk.start_display_row();
9339 let point = DisplayPoint::new(row, 0);
9340 s.select_display_ranges([point..point]);
9341 });
9342
9343 Some(hunk)
9344 } else {
9345 None
9346 }
9347 }
9348
9349 pub fn go_to_definition(
9350 &mut self,
9351 _: &GoToDefinition,
9352 cx: &mut ViewContext<Self>,
9353 ) -> Task<Result<Navigated>> {
9354 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9355 cx.spawn(|editor, mut cx| async move {
9356 if definition.await? == Navigated::Yes {
9357 return Ok(Navigated::Yes);
9358 }
9359 match editor.update(&mut cx, |editor, cx| {
9360 editor.find_all_references(&FindAllReferences, cx)
9361 })? {
9362 Some(references) => references.await,
9363 None => Ok(Navigated::No),
9364 }
9365 })
9366 }
9367
9368 pub fn go_to_declaration(
9369 &mut self,
9370 _: &GoToDeclaration,
9371 cx: &mut ViewContext<Self>,
9372 ) -> Task<Result<Navigated>> {
9373 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9374 }
9375
9376 pub fn go_to_declaration_split(
9377 &mut self,
9378 _: &GoToDeclaration,
9379 cx: &mut ViewContext<Self>,
9380 ) -> Task<Result<Navigated>> {
9381 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9382 }
9383
9384 pub fn go_to_implementation(
9385 &mut self,
9386 _: &GoToImplementation,
9387 cx: &mut ViewContext<Self>,
9388 ) -> Task<Result<Navigated>> {
9389 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9390 }
9391
9392 pub fn go_to_implementation_split(
9393 &mut self,
9394 _: &GoToImplementationSplit,
9395 cx: &mut ViewContext<Self>,
9396 ) -> Task<Result<Navigated>> {
9397 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9398 }
9399
9400 pub fn go_to_type_definition(
9401 &mut self,
9402 _: &GoToTypeDefinition,
9403 cx: &mut ViewContext<Self>,
9404 ) -> Task<Result<Navigated>> {
9405 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9406 }
9407
9408 pub fn go_to_definition_split(
9409 &mut self,
9410 _: &GoToDefinitionSplit,
9411 cx: &mut ViewContext<Self>,
9412 ) -> Task<Result<Navigated>> {
9413 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9414 }
9415
9416 pub fn go_to_type_definition_split(
9417 &mut self,
9418 _: &GoToTypeDefinitionSplit,
9419 cx: &mut ViewContext<Self>,
9420 ) -> Task<Result<Navigated>> {
9421 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9422 }
9423
9424 fn go_to_definition_of_kind(
9425 &mut self,
9426 kind: GotoDefinitionKind,
9427 split: bool,
9428 cx: &mut ViewContext<Self>,
9429 ) -> Task<Result<Navigated>> {
9430 let Some(provider) = self.semantics_provider.clone() else {
9431 return Task::ready(Ok(Navigated::No));
9432 };
9433 let head = self.selections.newest::<usize>(cx).head();
9434 let buffer = self.buffer.read(cx);
9435 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9436 text_anchor
9437 } else {
9438 return Task::ready(Ok(Navigated::No));
9439 };
9440
9441 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9442 return Task::ready(Ok(Navigated::No));
9443 };
9444
9445 cx.spawn(|editor, mut cx| async move {
9446 let definitions = definitions.await?;
9447 let navigated = editor
9448 .update(&mut cx, |editor, cx| {
9449 editor.navigate_to_hover_links(
9450 Some(kind),
9451 definitions
9452 .into_iter()
9453 .filter(|location| {
9454 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9455 })
9456 .map(HoverLink::Text)
9457 .collect::<Vec<_>>(),
9458 split,
9459 cx,
9460 )
9461 })?
9462 .await?;
9463 anyhow::Ok(navigated)
9464 })
9465 }
9466
9467 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9468 let selection = self.selections.newest_anchor();
9469 let head = selection.head();
9470 let tail = selection.tail();
9471
9472 let Some((buffer, start_position)) =
9473 self.buffer.read(cx).text_anchor_for_position(head, cx)
9474 else {
9475 return;
9476 };
9477
9478 let end_position = if head != tail {
9479 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9480 return;
9481 };
9482 Some(pos)
9483 } else {
9484 None
9485 };
9486
9487 let url_finder = cx.spawn(|editor, mut cx| async move {
9488 let url = if let Some(end_pos) = end_position {
9489 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9490 } else {
9491 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9492 };
9493
9494 if let Some(url) = url {
9495 editor.update(&mut cx, |_, cx| {
9496 cx.open_url(&url);
9497 })
9498 } else {
9499 Ok(())
9500 }
9501 });
9502
9503 url_finder.detach();
9504 }
9505
9506 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9507 let Some(workspace) = self.workspace() else {
9508 return;
9509 };
9510
9511 let position = self.selections.newest_anchor().head();
9512
9513 let Some((buffer, buffer_position)) =
9514 self.buffer.read(cx).text_anchor_for_position(position, cx)
9515 else {
9516 return;
9517 };
9518
9519 let project = self.project.clone();
9520
9521 cx.spawn(|_, mut cx| async move {
9522 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9523
9524 if let Some((_, path)) = result {
9525 workspace
9526 .update(&mut cx, |workspace, cx| {
9527 workspace.open_resolved_path(path, cx)
9528 })?
9529 .await?;
9530 }
9531 anyhow::Ok(())
9532 })
9533 .detach();
9534 }
9535
9536 pub(crate) fn navigate_to_hover_links(
9537 &mut self,
9538 kind: Option<GotoDefinitionKind>,
9539 mut definitions: Vec<HoverLink>,
9540 split: bool,
9541 cx: &mut ViewContext<Editor>,
9542 ) -> Task<Result<Navigated>> {
9543 // If there is one definition, just open it directly
9544 if definitions.len() == 1 {
9545 let definition = definitions.pop().unwrap();
9546
9547 enum TargetTaskResult {
9548 Location(Option<Location>),
9549 AlreadyNavigated,
9550 }
9551
9552 let target_task = match definition {
9553 HoverLink::Text(link) => {
9554 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9555 }
9556 HoverLink::InlayHint(lsp_location, server_id) => {
9557 let computation = self.compute_target_location(lsp_location, server_id, cx);
9558 cx.background_executor().spawn(async move {
9559 let location = computation.await?;
9560 Ok(TargetTaskResult::Location(location))
9561 })
9562 }
9563 HoverLink::Url(url) => {
9564 cx.open_url(&url);
9565 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9566 }
9567 HoverLink::File(path) => {
9568 if let Some(workspace) = self.workspace() {
9569 cx.spawn(|_, mut cx| async move {
9570 workspace
9571 .update(&mut cx, |workspace, cx| {
9572 workspace.open_resolved_path(path, cx)
9573 })?
9574 .await
9575 .map(|_| TargetTaskResult::AlreadyNavigated)
9576 })
9577 } else {
9578 Task::ready(Ok(TargetTaskResult::Location(None)))
9579 }
9580 }
9581 };
9582 cx.spawn(|editor, mut cx| async move {
9583 let target = match target_task.await.context("target resolution task")? {
9584 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9585 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9586 TargetTaskResult::Location(Some(target)) => target,
9587 };
9588
9589 editor.update(&mut cx, |editor, cx| {
9590 let Some(workspace) = editor.workspace() else {
9591 return Navigated::No;
9592 };
9593 let pane = workspace.read(cx).active_pane().clone();
9594
9595 let range = target.range.to_offset(target.buffer.read(cx));
9596 let range = editor.range_for_match(&range);
9597
9598 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9599 let buffer = target.buffer.read(cx);
9600 let range = check_multiline_range(buffer, range);
9601 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9602 s.select_ranges([range]);
9603 });
9604 } else {
9605 cx.window_context().defer(move |cx| {
9606 let target_editor: View<Self> =
9607 workspace.update(cx, |workspace, cx| {
9608 let pane = if split {
9609 workspace.adjacent_pane(cx)
9610 } else {
9611 workspace.active_pane().clone()
9612 };
9613
9614 workspace.open_project_item(
9615 pane,
9616 target.buffer.clone(),
9617 true,
9618 true,
9619 cx,
9620 )
9621 });
9622 target_editor.update(cx, |target_editor, cx| {
9623 // When selecting a definition in a different buffer, disable the nav history
9624 // to avoid creating a history entry at the previous cursor location.
9625 pane.update(cx, |pane, _| pane.disable_history());
9626 let buffer = target.buffer.read(cx);
9627 let range = check_multiline_range(buffer, range);
9628 target_editor.change_selections(
9629 Some(Autoscroll::focused()),
9630 cx,
9631 |s| {
9632 s.select_ranges([range]);
9633 },
9634 );
9635 pane.update(cx, |pane, _| pane.enable_history());
9636 });
9637 });
9638 }
9639 Navigated::Yes
9640 })
9641 })
9642 } else if !definitions.is_empty() {
9643 cx.spawn(|editor, mut cx| async move {
9644 let (title, location_tasks, workspace) = editor
9645 .update(&mut cx, |editor, cx| {
9646 let tab_kind = match kind {
9647 Some(GotoDefinitionKind::Implementation) => "Implementations",
9648 _ => "Definitions",
9649 };
9650 let title = definitions
9651 .iter()
9652 .find_map(|definition| match definition {
9653 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9654 let buffer = origin.buffer.read(cx);
9655 format!(
9656 "{} for {}",
9657 tab_kind,
9658 buffer
9659 .text_for_range(origin.range.clone())
9660 .collect::<String>()
9661 )
9662 }),
9663 HoverLink::InlayHint(_, _) => None,
9664 HoverLink::Url(_) => None,
9665 HoverLink::File(_) => None,
9666 })
9667 .unwrap_or(tab_kind.to_string());
9668 let location_tasks = definitions
9669 .into_iter()
9670 .map(|definition| match definition {
9671 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9672 HoverLink::InlayHint(lsp_location, server_id) => {
9673 editor.compute_target_location(lsp_location, server_id, cx)
9674 }
9675 HoverLink::Url(_) => Task::ready(Ok(None)),
9676 HoverLink::File(_) => Task::ready(Ok(None)),
9677 })
9678 .collect::<Vec<_>>();
9679 (title, location_tasks, editor.workspace().clone())
9680 })
9681 .context("location tasks preparation")?;
9682
9683 let locations = future::join_all(location_tasks)
9684 .await
9685 .into_iter()
9686 .filter_map(|location| location.transpose())
9687 .collect::<Result<_>>()
9688 .context("location tasks")?;
9689
9690 let Some(workspace) = workspace else {
9691 return Ok(Navigated::No);
9692 };
9693 let opened = workspace
9694 .update(&mut cx, |workspace, cx| {
9695 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9696 })
9697 .ok();
9698
9699 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9700 })
9701 } else {
9702 Task::ready(Ok(Navigated::No))
9703 }
9704 }
9705
9706 fn compute_target_location(
9707 &self,
9708 lsp_location: lsp::Location,
9709 server_id: LanguageServerId,
9710 cx: &mut ViewContext<Self>,
9711 ) -> Task<anyhow::Result<Option<Location>>> {
9712 let Some(project) = self.project.clone() else {
9713 return Task::ready(Ok(None));
9714 };
9715
9716 cx.spawn(move |editor, mut cx| async move {
9717 let location_task = editor.update(&mut cx, |_, cx| {
9718 project.update(cx, |project, cx| {
9719 let language_server_name = project
9720 .language_server_statuses(cx)
9721 .find(|(id, _)| server_id == *id)
9722 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9723 language_server_name.map(|language_server_name| {
9724 project.open_local_buffer_via_lsp(
9725 lsp_location.uri.clone(),
9726 server_id,
9727 language_server_name,
9728 cx,
9729 )
9730 })
9731 })
9732 })?;
9733 let location = match location_task {
9734 Some(task) => Some({
9735 let target_buffer_handle = task.await.context("open local buffer")?;
9736 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9737 let target_start = target_buffer
9738 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9739 let target_end = target_buffer
9740 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9741 target_buffer.anchor_after(target_start)
9742 ..target_buffer.anchor_before(target_end)
9743 })?;
9744 Location {
9745 buffer: target_buffer_handle,
9746 range,
9747 }
9748 }),
9749 None => None,
9750 };
9751 Ok(location)
9752 })
9753 }
9754
9755 pub fn find_all_references(
9756 &mut self,
9757 _: &FindAllReferences,
9758 cx: &mut ViewContext<Self>,
9759 ) -> Option<Task<Result<Navigated>>> {
9760 let selection = self.selections.newest::<usize>(cx);
9761 let multi_buffer = self.buffer.read(cx);
9762 let head = selection.head();
9763
9764 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9765 let head_anchor = multi_buffer_snapshot.anchor_at(
9766 head,
9767 if head < selection.tail() {
9768 Bias::Right
9769 } else {
9770 Bias::Left
9771 },
9772 );
9773
9774 match self
9775 .find_all_references_task_sources
9776 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9777 {
9778 Ok(_) => {
9779 log::info!(
9780 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9781 );
9782 return None;
9783 }
9784 Err(i) => {
9785 self.find_all_references_task_sources.insert(i, head_anchor);
9786 }
9787 }
9788
9789 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9790 let workspace = self.workspace()?;
9791 let project = workspace.read(cx).project().clone();
9792 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9793 Some(cx.spawn(|editor, mut cx| async move {
9794 let _cleanup = defer({
9795 let mut cx = cx.clone();
9796 move || {
9797 let _ = editor.update(&mut cx, |editor, _| {
9798 if let Ok(i) =
9799 editor
9800 .find_all_references_task_sources
9801 .binary_search_by(|anchor| {
9802 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9803 })
9804 {
9805 editor.find_all_references_task_sources.remove(i);
9806 }
9807 });
9808 }
9809 });
9810
9811 let locations = references.await?;
9812 if locations.is_empty() {
9813 return anyhow::Ok(Navigated::No);
9814 }
9815
9816 workspace.update(&mut cx, |workspace, cx| {
9817 let title = locations
9818 .first()
9819 .as_ref()
9820 .map(|location| {
9821 let buffer = location.buffer.read(cx);
9822 format!(
9823 "References to `{}`",
9824 buffer
9825 .text_for_range(location.range.clone())
9826 .collect::<String>()
9827 )
9828 })
9829 .unwrap();
9830 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9831 Navigated::Yes
9832 })
9833 }))
9834 }
9835
9836 /// Opens a multibuffer with the given project locations in it
9837 pub fn open_locations_in_multibuffer(
9838 workspace: &mut Workspace,
9839 mut locations: Vec<Location>,
9840 title: String,
9841 split: bool,
9842 cx: &mut ViewContext<Workspace>,
9843 ) {
9844 // If there are multiple definitions, open them in a multibuffer
9845 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9846 let mut locations = locations.into_iter().peekable();
9847 let mut ranges_to_highlight = Vec::new();
9848 let capability = workspace.project().read(cx).capability();
9849
9850 let excerpt_buffer = cx.new_model(|cx| {
9851 let mut multibuffer = MultiBuffer::new(capability);
9852 while let Some(location) = locations.next() {
9853 let buffer = location.buffer.read(cx);
9854 let mut ranges_for_buffer = Vec::new();
9855 let range = location.range.to_offset(buffer);
9856 ranges_for_buffer.push(range.clone());
9857
9858 while let Some(next_location) = locations.peek() {
9859 if next_location.buffer == location.buffer {
9860 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9861 locations.next();
9862 } else {
9863 break;
9864 }
9865 }
9866
9867 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9868 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9869 location.buffer.clone(),
9870 ranges_for_buffer,
9871 DEFAULT_MULTIBUFFER_CONTEXT,
9872 cx,
9873 ))
9874 }
9875
9876 multibuffer.with_title(title)
9877 });
9878
9879 let editor = cx.new_view(|cx| {
9880 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9881 });
9882 editor.update(cx, |editor, cx| {
9883 if let Some(first_range) = ranges_to_highlight.first() {
9884 editor.change_selections(None, cx, |selections| {
9885 selections.clear_disjoint();
9886 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9887 });
9888 }
9889 editor.highlight_background::<Self>(
9890 &ranges_to_highlight,
9891 |theme| theme.editor_highlighted_line_background,
9892 cx,
9893 );
9894 editor.register_buffers_with_language_servers(cx);
9895 });
9896
9897 let item = Box::new(editor);
9898 let item_id = item.item_id();
9899
9900 if split {
9901 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9902 } else {
9903 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9904 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9905 pane.close_current_preview_item(cx)
9906 } else {
9907 None
9908 }
9909 });
9910 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9911 }
9912 workspace.active_pane().update(cx, |pane, cx| {
9913 pane.set_preview_item_id(Some(item_id), cx);
9914 });
9915 }
9916
9917 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9918 use language::ToOffset as _;
9919
9920 let provider = self.semantics_provider.clone()?;
9921 let selection = self.selections.newest_anchor().clone();
9922 let (cursor_buffer, cursor_buffer_position) = self
9923 .buffer
9924 .read(cx)
9925 .text_anchor_for_position(selection.head(), cx)?;
9926 let (tail_buffer, cursor_buffer_position_end) = self
9927 .buffer
9928 .read(cx)
9929 .text_anchor_for_position(selection.tail(), cx)?;
9930 if tail_buffer != cursor_buffer {
9931 return None;
9932 }
9933
9934 let snapshot = cursor_buffer.read(cx).snapshot();
9935 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9936 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9937 let prepare_rename = provider
9938 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9939 .unwrap_or_else(|| Task::ready(Ok(None)));
9940 drop(snapshot);
9941
9942 Some(cx.spawn(|this, mut cx| async move {
9943 let rename_range = if let Some(range) = prepare_rename.await? {
9944 Some(range)
9945 } else {
9946 this.update(&mut cx, |this, cx| {
9947 let buffer = this.buffer.read(cx).snapshot(cx);
9948 let mut buffer_highlights = this
9949 .document_highlights_for_position(selection.head(), &buffer)
9950 .filter(|highlight| {
9951 highlight.start.excerpt_id == selection.head().excerpt_id
9952 && highlight.end.excerpt_id == selection.head().excerpt_id
9953 });
9954 buffer_highlights
9955 .next()
9956 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9957 })?
9958 };
9959 if let Some(rename_range) = rename_range {
9960 this.update(&mut cx, |this, cx| {
9961 let snapshot = cursor_buffer.read(cx).snapshot();
9962 let rename_buffer_range = rename_range.to_offset(&snapshot);
9963 let cursor_offset_in_rename_range =
9964 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9965 let cursor_offset_in_rename_range_end =
9966 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9967
9968 this.take_rename(false, cx);
9969 let buffer = this.buffer.read(cx).read(cx);
9970 let cursor_offset = selection.head().to_offset(&buffer);
9971 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9972 let rename_end = rename_start + rename_buffer_range.len();
9973 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9974 let mut old_highlight_id = None;
9975 let old_name: Arc<str> = buffer
9976 .chunks(rename_start..rename_end, true)
9977 .map(|chunk| {
9978 if old_highlight_id.is_none() {
9979 old_highlight_id = chunk.syntax_highlight_id;
9980 }
9981 chunk.text
9982 })
9983 .collect::<String>()
9984 .into();
9985
9986 drop(buffer);
9987
9988 // Position the selection in the rename editor so that it matches the current selection.
9989 this.show_local_selections = false;
9990 let rename_editor = cx.new_view(|cx| {
9991 let mut editor = Editor::single_line(cx);
9992 editor.buffer.update(cx, |buffer, cx| {
9993 buffer.edit([(0..0, old_name.clone())], None, cx)
9994 });
9995 let rename_selection_range = match cursor_offset_in_rename_range
9996 .cmp(&cursor_offset_in_rename_range_end)
9997 {
9998 Ordering::Equal => {
9999 editor.select_all(&SelectAll, cx);
10000 return editor;
10001 }
10002 Ordering::Less => {
10003 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10004 }
10005 Ordering::Greater => {
10006 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10007 }
10008 };
10009 if rename_selection_range.end > old_name.len() {
10010 editor.select_all(&SelectAll, cx);
10011 } else {
10012 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10013 s.select_ranges([rename_selection_range]);
10014 });
10015 }
10016 editor
10017 });
10018 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10019 if e == &EditorEvent::Focused {
10020 cx.emit(EditorEvent::FocusedIn)
10021 }
10022 })
10023 .detach();
10024
10025 let write_highlights =
10026 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10027 let read_highlights =
10028 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10029 let ranges = write_highlights
10030 .iter()
10031 .flat_map(|(_, ranges)| ranges.iter())
10032 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10033 .cloned()
10034 .collect();
10035
10036 this.highlight_text::<Rename>(
10037 ranges,
10038 HighlightStyle {
10039 fade_out: Some(0.6),
10040 ..Default::default()
10041 },
10042 cx,
10043 );
10044 let rename_focus_handle = rename_editor.focus_handle(cx);
10045 cx.focus(&rename_focus_handle);
10046 let block_id = this.insert_blocks(
10047 [BlockProperties {
10048 style: BlockStyle::Flex,
10049 placement: BlockPlacement::Below(range.start),
10050 height: 1,
10051 render: Arc::new({
10052 let rename_editor = rename_editor.clone();
10053 move |cx: &mut BlockContext| {
10054 let mut text_style = cx.editor_style.text.clone();
10055 if let Some(highlight_style) = old_highlight_id
10056 .and_then(|h| h.style(&cx.editor_style.syntax))
10057 {
10058 text_style = text_style.highlight(highlight_style);
10059 }
10060 div()
10061 .block_mouse_down()
10062 .pl(cx.anchor_x)
10063 .child(EditorElement::new(
10064 &rename_editor,
10065 EditorStyle {
10066 background: cx.theme().system().transparent,
10067 local_player: cx.editor_style.local_player,
10068 text: text_style,
10069 scrollbar_width: cx.editor_style.scrollbar_width,
10070 syntax: cx.editor_style.syntax.clone(),
10071 status: cx.editor_style.status.clone(),
10072 inlay_hints_style: HighlightStyle {
10073 font_weight: Some(FontWeight::BOLD),
10074 ..make_inlay_hints_style(cx)
10075 },
10076 inline_completion_styles: make_suggestion_styles(
10077 cx,
10078 ),
10079 ..EditorStyle::default()
10080 },
10081 ))
10082 .into_any_element()
10083 }
10084 }),
10085 priority: 0,
10086 }],
10087 Some(Autoscroll::fit()),
10088 cx,
10089 )[0];
10090 this.pending_rename = Some(RenameState {
10091 range,
10092 old_name,
10093 editor: rename_editor,
10094 block_id,
10095 });
10096 })?;
10097 }
10098
10099 Ok(())
10100 }))
10101 }
10102
10103 pub fn confirm_rename(
10104 &mut self,
10105 _: &ConfirmRename,
10106 cx: &mut ViewContext<Self>,
10107 ) -> Option<Task<Result<()>>> {
10108 let rename = self.take_rename(false, cx)?;
10109 let workspace = self.workspace()?.downgrade();
10110 let (buffer, start) = self
10111 .buffer
10112 .read(cx)
10113 .text_anchor_for_position(rename.range.start, cx)?;
10114 let (end_buffer, _) = self
10115 .buffer
10116 .read(cx)
10117 .text_anchor_for_position(rename.range.end, cx)?;
10118 if buffer != end_buffer {
10119 return None;
10120 }
10121
10122 let old_name = rename.old_name;
10123 let new_name = rename.editor.read(cx).text(cx);
10124
10125 let rename = self.semantics_provider.as_ref()?.perform_rename(
10126 &buffer,
10127 start,
10128 new_name.clone(),
10129 cx,
10130 )?;
10131
10132 Some(cx.spawn(|editor, mut cx| async move {
10133 let project_transaction = rename.await?;
10134 Self::open_project_transaction(
10135 &editor,
10136 workspace,
10137 project_transaction,
10138 format!("Rename: {} → {}", old_name, new_name),
10139 cx.clone(),
10140 )
10141 .await?;
10142
10143 editor.update(&mut cx, |editor, cx| {
10144 editor.refresh_document_highlights(cx);
10145 })?;
10146 Ok(())
10147 }))
10148 }
10149
10150 fn take_rename(
10151 &mut self,
10152 moving_cursor: bool,
10153 cx: &mut ViewContext<Self>,
10154 ) -> Option<RenameState> {
10155 let rename = self.pending_rename.take()?;
10156 if rename.editor.focus_handle(cx).is_focused(cx) {
10157 cx.focus(&self.focus_handle);
10158 }
10159
10160 self.remove_blocks(
10161 [rename.block_id].into_iter().collect(),
10162 Some(Autoscroll::fit()),
10163 cx,
10164 );
10165 self.clear_highlights::<Rename>(cx);
10166 self.show_local_selections = true;
10167
10168 if moving_cursor {
10169 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10170 editor.selections.newest::<usize>(cx).head()
10171 });
10172
10173 // Update the selection to match the position of the selection inside
10174 // the rename editor.
10175 let snapshot = self.buffer.read(cx).read(cx);
10176 let rename_range = rename.range.to_offset(&snapshot);
10177 let cursor_in_editor = snapshot
10178 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10179 .min(rename_range.end);
10180 drop(snapshot);
10181
10182 self.change_selections(None, cx, |s| {
10183 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10184 });
10185 } else {
10186 self.refresh_document_highlights(cx);
10187 }
10188
10189 Some(rename)
10190 }
10191
10192 pub fn pending_rename(&self) -> Option<&RenameState> {
10193 self.pending_rename.as_ref()
10194 }
10195
10196 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10197 let project = match &self.project {
10198 Some(project) => project.clone(),
10199 None => return None,
10200 };
10201
10202 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10203 }
10204
10205 fn format_selections(
10206 &mut self,
10207 _: &FormatSelections,
10208 cx: &mut ViewContext<Self>,
10209 ) -> Option<Task<Result<()>>> {
10210 let project = match &self.project {
10211 Some(project) => project.clone(),
10212 None => return None,
10213 };
10214
10215 let selections = self
10216 .selections
10217 .all_adjusted(cx)
10218 .into_iter()
10219 .filter(|s| !s.is_empty())
10220 .collect_vec();
10221
10222 Some(self.perform_format(
10223 project,
10224 FormatTrigger::Manual,
10225 FormatTarget::Ranges(selections),
10226 cx,
10227 ))
10228 }
10229
10230 fn perform_format(
10231 &mut self,
10232 project: Model<Project>,
10233 trigger: FormatTrigger,
10234 target: FormatTarget,
10235 cx: &mut ViewContext<Self>,
10236 ) -> Task<Result<()>> {
10237 let buffer = self.buffer().clone();
10238 let mut buffers = buffer.read(cx).all_buffers();
10239 if trigger == FormatTrigger::Save {
10240 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10241 }
10242
10243 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10244 let format = project.update(cx, |project, cx| {
10245 project.format(buffers, true, trigger, target, cx)
10246 });
10247
10248 cx.spawn(|_, mut cx| async move {
10249 let transaction = futures::select_biased! {
10250 () = timeout => {
10251 log::warn!("timed out waiting for formatting");
10252 None
10253 }
10254 transaction = format.log_err().fuse() => transaction,
10255 };
10256
10257 buffer
10258 .update(&mut cx, |buffer, cx| {
10259 if let Some(transaction) = transaction {
10260 if !buffer.is_singleton() {
10261 buffer.push_transaction(&transaction.0, cx);
10262 }
10263 }
10264
10265 cx.notify();
10266 })
10267 .ok();
10268
10269 Ok(())
10270 })
10271 }
10272
10273 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10274 if let Some(project) = self.project.clone() {
10275 self.buffer.update(cx, |multi_buffer, cx| {
10276 project.update(cx, |project, cx| {
10277 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10278 });
10279 })
10280 }
10281 }
10282
10283 fn cancel_language_server_work(
10284 &mut self,
10285 _: &actions::CancelLanguageServerWork,
10286 cx: &mut ViewContext<Self>,
10287 ) {
10288 if let Some(project) = self.project.clone() {
10289 self.buffer.update(cx, |multi_buffer, cx| {
10290 project.update(cx, |project, cx| {
10291 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10292 });
10293 })
10294 }
10295 }
10296
10297 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10298 cx.show_character_palette();
10299 }
10300
10301 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10302 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10303 let buffer = self.buffer.read(cx).snapshot(cx);
10304 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10305 let is_valid = buffer
10306 .diagnostics_in_range(active_diagnostics.primary_range.clone(), false)
10307 .any(|entry| {
10308 let range = entry.range.to_offset(&buffer);
10309 entry.diagnostic.is_primary
10310 && !range.is_empty()
10311 && range.start == primary_range_start
10312 && entry.diagnostic.message == active_diagnostics.primary_message
10313 });
10314
10315 if is_valid != active_diagnostics.is_valid {
10316 active_diagnostics.is_valid = is_valid;
10317 let mut new_styles = HashMap::default();
10318 for (block_id, diagnostic) in &active_diagnostics.blocks {
10319 new_styles.insert(
10320 *block_id,
10321 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10322 );
10323 }
10324 self.display_map.update(cx, |display_map, _cx| {
10325 display_map.replace_blocks(new_styles)
10326 });
10327 }
10328 }
10329 }
10330
10331 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) {
10332 self.dismiss_diagnostics(cx);
10333 let snapshot = self.snapshot(cx);
10334 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10335 let buffer = self.buffer.read(cx).snapshot(cx);
10336
10337 let mut primary_range = None;
10338 let mut primary_message = None;
10339 let mut group_end = Point::zero();
10340 let diagnostic_group = buffer
10341 .diagnostic_group(group_id)
10342 .filter_map(|entry| {
10343 let start = entry.range.start.to_point(&buffer);
10344 let end = entry.range.end.to_point(&buffer);
10345 if snapshot.is_line_folded(MultiBufferRow(start.row))
10346 && (start.row == end.row
10347 || snapshot.is_line_folded(MultiBufferRow(end.row)))
10348 {
10349 return None;
10350 }
10351 if end > group_end {
10352 group_end = end;
10353 }
10354 if entry.diagnostic.is_primary {
10355 primary_range = Some(entry.range.clone());
10356 primary_message = Some(entry.diagnostic.message.clone());
10357 }
10358 Some(entry)
10359 })
10360 .collect::<Vec<_>>();
10361 let primary_range = primary_range?;
10362 let primary_message = primary_message?;
10363
10364 let blocks = display_map
10365 .insert_blocks(
10366 diagnostic_group.iter().map(|entry| {
10367 let diagnostic = entry.diagnostic.clone();
10368 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10369 BlockProperties {
10370 style: BlockStyle::Fixed,
10371 placement: BlockPlacement::Below(
10372 buffer.anchor_after(entry.range.start),
10373 ),
10374 height: message_height,
10375 render: diagnostic_block_renderer(diagnostic, None, true, true),
10376 priority: 0,
10377 }
10378 }),
10379 cx,
10380 )
10381 .into_iter()
10382 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10383 .collect();
10384
10385 Some(ActiveDiagnosticGroup {
10386 primary_range,
10387 primary_message,
10388 group_id,
10389 blocks,
10390 is_valid: true,
10391 })
10392 });
10393 }
10394
10395 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10396 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10397 self.display_map.update(cx, |display_map, cx| {
10398 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10399 });
10400 cx.notify();
10401 }
10402 }
10403
10404 pub fn set_selections_from_remote(
10405 &mut self,
10406 selections: Vec<Selection<Anchor>>,
10407 pending_selection: Option<Selection<Anchor>>,
10408 cx: &mut ViewContext<Self>,
10409 ) {
10410 let old_cursor_position = self.selections.newest_anchor().head();
10411 self.selections.change_with(cx, |s| {
10412 s.select_anchors(selections);
10413 if let Some(pending_selection) = pending_selection {
10414 s.set_pending(pending_selection, SelectMode::Character);
10415 } else {
10416 s.clear_pending();
10417 }
10418 });
10419 self.selections_did_change(false, &old_cursor_position, true, cx);
10420 }
10421
10422 fn push_to_selection_history(&mut self) {
10423 self.selection_history.push(SelectionHistoryEntry {
10424 selections: self.selections.disjoint_anchors(),
10425 select_next_state: self.select_next_state.clone(),
10426 select_prev_state: self.select_prev_state.clone(),
10427 add_selections_state: self.add_selections_state.clone(),
10428 });
10429 }
10430
10431 pub fn transact(
10432 &mut self,
10433 cx: &mut ViewContext<Self>,
10434 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10435 ) -> Option<TransactionId> {
10436 self.start_transaction_at(Instant::now(), cx);
10437 update(self, cx);
10438 self.end_transaction_at(Instant::now(), cx)
10439 }
10440
10441 pub fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10442 self.end_selection(cx);
10443 if let Some(tx_id) = self
10444 .buffer
10445 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10446 {
10447 self.selection_history
10448 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10449 cx.emit(EditorEvent::TransactionBegun {
10450 transaction_id: tx_id,
10451 })
10452 }
10453 }
10454
10455 pub fn end_transaction_at(
10456 &mut self,
10457 now: Instant,
10458 cx: &mut ViewContext<Self>,
10459 ) -> Option<TransactionId> {
10460 if let Some(transaction_id) = self
10461 .buffer
10462 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10463 {
10464 if let Some((_, end_selections)) =
10465 self.selection_history.transaction_mut(transaction_id)
10466 {
10467 *end_selections = Some(self.selections.disjoint_anchors());
10468 } else {
10469 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10470 }
10471
10472 cx.emit(EditorEvent::Edited { transaction_id });
10473 Some(transaction_id)
10474 } else {
10475 None
10476 }
10477 }
10478
10479 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10480 if self.is_singleton(cx) {
10481 let selection = self.selections.newest::<Point>(cx);
10482
10483 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10484 let range = if selection.is_empty() {
10485 let point = selection.head().to_display_point(&display_map);
10486 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10487 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10488 .to_point(&display_map);
10489 start..end
10490 } else {
10491 selection.range()
10492 };
10493 if display_map.folds_in_range(range).next().is_some() {
10494 self.unfold_lines(&Default::default(), cx)
10495 } else {
10496 self.fold(&Default::default(), cx)
10497 }
10498 } else {
10499 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10500 let mut toggled_buffers = HashSet::default();
10501 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10502 self.selections
10503 .disjoint_anchors()
10504 .into_iter()
10505 .map(|selection| selection.range()),
10506 ) {
10507 let buffer_id = buffer_snapshot.remote_id();
10508 if toggled_buffers.insert(buffer_id) {
10509 if self.buffer_folded(buffer_id, cx) {
10510 self.unfold_buffer(buffer_id, cx);
10511 } else {
10512 self.fold_buffer(buffer_id, cx);
10513 }
10514 }
10515 }
10516 }
10517 }
10518
10519 pub fn toggle_fold_recursive(
10520 &mut self,
10521 _: &actions::ToggleFoldRecursive,
10522 cx: &mut ViewContext<Self>,
10523 ) {
10524 let selection = self.selections.newest::<Point>(cx);
10525
10526 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10527 let range = if selection.is_empty() {
10528 let point = selection.head().to_display_point(&display_map);
10529 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10530 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10531 .to_point(&display_map);
10532 start..end
10533 } else {
10534 selection.range()
10535 };
10536 if display_map.folds_in_range(range).next().is_some() {
10537 self.unfold_recursive(&Default::default(), cx)
10538 } else {
10539 self.fold_recursive(&Default::default(), cx)
10540 }
10541 }
10542
10543 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10544 if self.is_singleton(cx) {
10545 let mut to_fold = Vec::new();
10546 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10547 let selections = self.selections.all_adjusted(cx);
10548
10549 for selection in selections {
10550 let range = selection.range().sorted();
10551 let buffer_start_row = range.start.row;
10552
10553 if range.start.row != range.end.row {
10554 let mut found = false;
10555 let mut row = range.start.row;
10556 while row <= range.end.row {
10557 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10558 {
10559 found = true;
10560 row = crease.range().end.row + 1;
10561 to_fold.push(crease);
10562 } else {
10563 row += 1
10564 }
10565 }
10566 if found {
10567 continue;
10568 }
10569 }
10570
10571 for row in (0..=range.start.row).rev() {
10572 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10573 if crease.range().end.row >= buffer_start_row {
10574 to_fold.push(crease);
10575 if row <= range.start.row {
10576 break;
10577 }
10578 }
10579 }
10580 }
10581 }
10582
10583 self.fold_creases(to_fold, true, cx);
10584 } else {
10585 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10586 let mut folded_buffers = HashSet::default();
10587 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10588 self.selections
10589 .disjoint_anchors()
10590 .into_iter()
10591 .map(|selection| selection.range()),
10592 ) {
10593 let buffer_id = buffer_snapshot.remote_id();
10594 if folded_buffers.insert(buffer_id) {
10595 self.fold_buffer(buffer_id, cx);
10596 }
10597 }
10598 }
10599 }
10600
10601 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10602 if !self.buffer.read(cx).is_singleton() {
10603 return;
10604 }
10605
10606 let fold_at_level = fold_at.level;
10607 let snapshot = self.buffer.read(cx).snapshot(cx);
10608 let mut to_fold = Vec::new();
10609 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10610
10611 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10612 while start_row < end_row {
10613 match self
10614 .snapshot(cx)
10615 .crease_for_buffer_row(MultiBufferRow(start_row))
10616 {
10617 Some(crease) => {
10618 let nested_start_row = crease.range().start.row + 1;
10619 let nested_end_row = crease.range().end.row;
10620
10621 if current_level < fold_at_level {
10622 stack.push((nested_start_row, nested_end_row, current_level + 1));
10623 } else if current_level == fold_at_level {
10624 to_fold.push(crease);
10625 }
10626
10627 start_row = nested_end_row + 1;
10628 }
10629 None => start_row += 1,
10630 }
10631 }
10632 }
10633
10634 self.fold_creases(to_fold, true, cx);
10635 }
10636
10637 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10638 if self.buffer.read(cx).is_singleton() {
10639 let mut fold_ranges = Vec::new();
10640 let snapshot = self.buffer.read(cx).snapshot(cx);
10641
10642 for row in 0..snapshot.max_row().0 {
10643 if let Some(foldable_range) =
10644 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10645 {
10646 fold_ranges.push(foldable_range);
10647 }
10648 }
10649
10650 self.fold_creases(fold_ranges, true, cx);
10651 } else {
10652 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10653 editor
10654 .update(&mut cx, |editor, cx| {
10655 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10656 editor.fold_buffer(buffer_id, cx);
10657 }
10658 })
10659 .ok();
10660 });
10661 }
10662 }
10663
10664 pub fn fold_function_bodies(
10665 &mut self,
10666 _: &actions::FoldFunctionBodies,
10667 cx: &mut ViewContext<Self>,
10668 ) {
10669 let snapshot = self.buffer.read(cx).snapshot(cx);
10670 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10671 return;
10672 };
10673 let creases = buffer
10674 .function_body_fold_ranges(0..buffer.len())
10675 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10676 .collect();
10677
10678 self.fold_creases(creases, true, cx);
10679 }
10680
10681 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10682 let mut to_fold = Vec::new();
10683 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10684 let selections = self.selections.all_adjusted(cx);
10685
10686 for selection in selections {
10687 let range = selection.range().sorted();
10688 let buffer_start_row = range.start.row;
10689
10690 if range.start.row != range.end.row {
10691 let mut found = false;
10692 for row in range.start.row..=range.end.row {
10693 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10694 found = true;
10695 to_fold.push(crease);
10696 }
10697 }
10698 if found {
10699 continue;
10700 }
10701 }
10702
10703 for row in (0..=range.start.row).rev() {
10704 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10705 if crease.range().end.row >= buffer_start_row {
10706 to_fold.push(crease);
10707 } else {
10708 break;
10709 }
10710 }
10711 }
10712 }
10713
10714 self.fold_creases(to_fold, true, cx);
10715 }
10716
10717 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10718 let buffer_row = fold_at.buffer_row;
10719 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10720
10721 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10722 let autoscroll = self
10723 .selections
10724 .all::<Point>(cx)
10725 .iter()
10726 .any(|selection| crease.range().overlaps(&selection.range()));
10727
10728 self.fold_creases(vec![crease], autoscroll, cx);
10729 }
10730 }
10731
10732 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10733 if self.is_singleton(cx) {
10734 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10735 let buffer = &display_map.buffer_snapshot;
10736 let selections = self.selections.all::<Point>(cx);
10737 let ranges = selections
10738 .iter()
10739 .map(|s| {
10740 let range = s.display_range(&display_map).sorted();
10741 let mut start = range.start.to_point(&display_map);
10742 let mut end = range.end.to_point(&display_map);
10743 start.column = 0;
10744 end.column = buffer.line_len(MultiBufferRow(end.row));
10745 start..end
10746 })
10747 .collect::<Vec<_>>();
10748
10749 self.unfold_ranges(&ranges, true, true, cx);
10750 } else {
10751 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10752 let mut unfolded_buffers = HashSet::default();
10753 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10754 self.selections
10755 .disjoint_anchors()
10756 .into_iter()
10757 .map(|selection| selection.range()),
10758 ) {
10759 let buffer_id = buffer_snapshot.remote_id();
10760 if unfolded_buffers.insert(buffer_id) {
10761 self.unfold_buffer(buffer_id, cx);
10762 }
10763 }
10764 }
10765 }
10766
10767 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10768 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10769 let selections = self.selections.all::<Point>(cx);
10770 let ranges = selections
10771 .iter()
10772 .map(|s| {
10773 let mut range = s.display_range(&display_map).sorted();
10774 *range.start.column_mut() = 0;
10775 *range.end.column_mut() = display_map.line_len(range.end.row());
10776 let start = range.start.to_point(&display_map);
10777 let end = range.end.to_point(&display_map);
10778 start..end
10779 })
10780 .collect::<Vec<_>>();
10781
10782 self.unfold_ranges(&ranges, true, true, cx);
10783 }
10784
10785 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10786 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10787
10788 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10789 ..Point::new(
10790 unfold_at.buffer_row.0,
10791 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10792 );
10793
10794 let autoscroll = self
10795 .selections
10796 .all::<Point>(cx)
10797 .iter()
10798 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10799
10800 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10801 }
10802
10803 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10804 if self.buffer.read(cx).is_singleton() {
10805 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10806 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10807 } else {
10808 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10809 editor
10810 .update(&mut cx, |editor, cx| {
10811 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10812 editor.unfold_buffer(buffer_id, cx);
10813 }
10814 })
10815 .ok();
10816 });
10817 }
10818 }
10819
10820 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10821 let selections = self.selections.all::<Point>(cx);
10822 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10823 let line_mode = self.selections.line_mode;
10824 let ranges = selections
10825 .into_iter()
10826 .map(|s| {
10827 if line_mode {
10828 let start = Point::new(s.start.row, 0);
10829 let end = Point::new(
10830 s.end.row,
10831 display_map
10832 .buffer_snapshot
10833 .line_len(MultiBufferRow(s.end.row)),
10834 );
10835 Crease::simple(start..end, display_map.fold_placeholder.clone())
10836 } else {
10837 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10838 }
10839 })
10840 .collect::<Vec<_>>();
10841 self.fold_creases(ranges, true, cx);
10842 }
10843
10844 pub fn fold_creases<T: ToOffset + Clone>(
10845 &mut self,
10846 creases: Vec<Crease<T>>,
10847 auto_scroll: bool,
10848 cx: &mut ViewContext<Self>,
10849 ) {
10850 if creases.is_empty() {
10851 return;
10852 }
10853
10854 let mut buffers_affected = HashSet::default();
10855 let multi_buffer = self.buffer().read(cx);
10856 for crease in &creases {
10857 if let Some((_, buffer, _)) =
10858 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10859 {
10860 buffers_affected.insert(buffer.read(cx).remote_id());
10861 };
10862 }
10863
10864 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10865
10866 if auto_scroll {
10867 self.request_autoscroll(Autoscroll::fit(), cx);
10868 }
10869
10870 for buffer_id in buffers_affected {
10871 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10872 }
10873
10874 cx.notify();
10875
10876 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10877 // Clear diagnostics block when folding a range that contains it.
10878 let snapshot = self.snapshot(cx);
10879 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10880 drop(snapshot);
10881 self.active_diagnostics = Some(active_diagnostics);
10882 self.dismiss_diagnostics(cx);
10883 } else {
10884 self.active_diagnostics = Some(active_diagnostics);
10885 }
10886 }
10887
10888 self.scrollbar_marker_state.dirty = true;
10889 }
10890
10891 /// Removes any folds whose ranges intersect any of the given ranges.
10892 pub fn unfold_ranges<T: ToOffset + Clone>(
10893 &mut self,
10894 ranges: &[Range<T>],
10895 inclusive: bool,
10896 auto_scroll: bool,
10897 cx: &mut ViewContext<Self>,
10898 ) {
10899 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10900 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10901 });
10902 }
10903
10904 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10905 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
10906 return;
10907 }
10908 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10909 return;
10910 };
10911 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10912 self.display_map
10913 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
10914 cx.emit(EditorEvent::BufferFoldToggled {
10915 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
10916 folded: true,
10917 });
10918 cx.notify();
10919 }
10920
10921 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10922 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
10923 return;
10924 }
10925 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10926 return;
10927 };
10928 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10929 self.display_map.update(cx, |display_map, cx| {
10930 display_map.unfold_buffer(buffer_id, cx);
10931 });
10932 cx.emit(EditorEvent::BufferFoldToggled {
10933 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
10934 folded: false,
10935 });
10936 cx.notify();
10937 }
10938
10939 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
10940 self.display_map.read(cx).buffer_folded(buffer)
10941 }
10942
10943 /// Removes any folds with the given ranges.
10944 pub fn remove_folds_with_type<T: ToOffset + Clone>(
10945 &mut self,
10946 ranges: &[Range<T>],
10947 type_id: TypeId,
10948 auto_scroll: bool,
10949 cx: &mut ViewContext<Self>,
10950 ) {
10951 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10952 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
10953 });
10954 }
10955
10956 fn remove_folds_with<T: ToOffset + Clone>(
10957 &mut self,
10958 ranges: &[Range<T>],
10959 auto_scroll: bool,
10960 cx: &mut ViewContext<Self>,
10961 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
10962 ) {
10963 if ranges.is_empty() {
10964 return;
10965 }
10966
10967 let mut buffers_affected = HashSet::default();
10968 let multi_buffer = self.buffer().read(cx);
10969 for range in ranges {
10970 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10971 buffers_affected.insert(buffer.read(cx).remote_id());
10972 };
10973 }
10974
10975 self.display_map.update(cx, update);
10976
10977 if auto_scroll {
10978 self.request_autoscroll(Autoscroll::fit(), cx);
10979 }
10980
10981 for buffer_id in buffers_affected {
10982 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10983 }
10984
10985 cx.notify();
10986 self.scrollbar_marker_state.dirty = true;
10987 self.active_indent_guides_state.dirty = true;
10988 }
10989
10990 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10991 self.display_map.read(cx).fold_placeholder.clone()
10992 }
10993
10994 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10995 if hovered != self.gutter_hovered {
10996 self.gutter_hovered = hovered;
10997 cx.notify();
10998 }
10999 }
11000
11001 pub fn insert_blocks(
11002 &mut self,
11003 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11004 autoscroll: Option<Autoscroll>,
11005 cx: &mut ViewContext<Self>,
11006 ) -> Vec<CustomBlockId> {
11007 let blocks = self
11008 .display_map
11009 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11010 if let Some(autoscroll) = autoscroll {
11011 self.request_autoscroll(autoscroll, cx);
11012 }
11013 cx.notify();
11014 blocks
11015 }
11016
11017 pub fn resize_blocks(
11018 &mut self,
11019 heights: HashMap<CustomBlockId, u32>,
11020 autoscroll: Option<Autoscroll>,
11021 cx: &mut ViewContext<Self>,
11022 ) {
11023 self.display_map
11024 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11025 if let Some(autoscroll) = autoscroll {
11026 self.request_autoscroll(autoscroll, cx);
11027 }
11028 cx.notify();
11029 }
11030
11031 pub fn replace_blocks(
11032 &mut self,
11033 renderers: HashMap<CustomBlockId, RenderBlock>,
11034 autoscroll: Option<Autoscroll>,
11035 cx: &mut ViewContext<Self>,
11036 ) {
11037 self.display_map
11038 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11039 if let Some(autoscroll) = autoscroll {
11040 self.request_autoscroll(autoscroll, cx);
11041 }
11042 cx.notify();
11043 }
11044
11045 pub fn remove_blocks(
11046 &mut self,
11047 block_ids: HashSet<CustomBlockId>,
11048 autoscroll: Option<Autoscroll>,
11049 cx: &mut ViewContext<Self>,
11050 ) {
11051 self.display_map.update(cx, |display_map, cx| {
11052 display_map.remove_blocks(block_ids, cx)
11053 });
11054 if let Some(autoscroll) = autoscroll {
11055 self.request_autoscroll(autoscroll, cx);
11056 }
11057 cx.notify();
11058 }
11059
11060 pub fn row_for_block(
11061 &self,
11062 block_id: CustomBlockId,
11063 cx: &mut ViewContext<Self>,
11064 ) -> Option<DisplayRow> {
11065 self.display_map
11066 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11067 }
11068
11069 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11070 self.focused_block = Some(focused_block);
11071 }
11072
11073 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11074 self.focused_block.take()
11075 }
11076
11077 pub fn insert_creases(
11078 &mut self,
11079 creases: impl IntoIterator<Item = Crease<Anchor>>,
11080 cx: &mut ViewContext<Self>,
11081 ) -> Vec<CreaseId> {
11082 self.display_map
11083 .update(cx, |map, cx| map.insert_creases(creases, cx))
11084 }
11085
11086 pub fn remove_creases(
11087 &mut self,
11088 ids: impl IntoIterator<Item = CreaseId>,
11089 cx: &mut ViewContext<Self>,
11090 ) {
11091 self.display_map
11092 .update(cx, |map, cx| map.remove_creases(ids, cx));
11093 }
11094
11095 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11096 self.display_map
11097 .update(cx, |map, cx| map.snapshot(cx))
11098 .longest_row()
11099 }
11100
11101 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11102 self.display_map
11103 .update(cx, |map, cx| map.snapshot(cx))
11104 .max_point()
11105 }
11106
11107 pub fn text(&self, cx: &AppContext) -> String {
11108 self.buffer.read(cx).read(cx).text()
11109 }
11110
11111 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11112 let text = self.text(cx);
11113 let text = text.trim();
11114
11115 if text.is_empty() {
11116 return None;
11117 }
11118
11119 Some(text.to_string())
11120 }
11121
11122 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11123 self.transact(cx, |this, cx| {
11124 this.buffer
11125 .read(cx)
11126 .as_singleton()
11127 .expect("you can only call set_text on editors for singleton buffers")
11128 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11129 });
11130 }
11131
11132 pub fn display_text(&self, cx: &mut AppContext) -> String {
11133 self.display_map
11134 .update(cx, |map, cx| map.snapshot(cx))
11135 .text()
11136 }
11137
11138 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11139 let mut wrap_guides = smallvec::smallvec![];
11140
11141 if self.show_wrap_guides == Some(false) {
11142 return wrap_guides;
11143 }
11144
11145 let settings = self.buffer.read(cx).settings_at(0, cx);
11146 if settings.show_wrap_guides {
11147 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11148 wrap_guides.push((soft_wrap as usize, true));
11149 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11150 wrap_guides.push((soft_wrap as usize, true));
11151 }
11152 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11153 }
11154
11155 wrap_guides
11156 }
11157
11158 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11159 let settings = self.buffer.read(cx).settings_at(0, cx);
11160 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11161 match mode {
11162 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11163 SoftWrap::None
11164 }
11165 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11166 language_settings::SoftWrap::PreferredLineLength => {
11167 SoftWrap::Column(settings.preferred_line_length)
11168 }
11169 language_settings::SoftWrap::Bounded => {
11170 SoftWrap::Bounded(settings.preferred_line_length)
11171 }
11172 }
11173 }
11174
11175 pub fn set_soft_wrap_mode(
11176 &mut self,
11177 mode: language_settings::SoftWrap,
11178 cx: &mut ViewContext<Self>,
11179 ) {
11180 self.soft_wrap_mode_override = Some(mode);
11181 cx.notify();
11182 }
11183
11184 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11185 self.text_style_refinement = Some(style);
11186 }
11187
11188 /// called by the Element so we know what style we were most recently rendered with.
11189 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11190 let rem_size = cx.rem_size();
11191 self.display_map.update(cx, |map, cx| {
11192 map.set_font(
11193 style.text.font(),
11194 style.text.font_size.to_pixels(rem_size),
11195 cx,
11196 )
11197 });
11198 self.style = Some(style);
11199 }
11200
11201 pub fn style(&self) -> Option<&EditorStyle> {
11202 self.style.as_ref()
11203 }
11204
11205 // Called by the element. This method is not designed to be called outside of the editor
11206 // element's layout code because it does not notify when rewrapping is computed synchronously.
11207 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11208 self.display_map
11209 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11210 }
11211
11212 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11213 if self.soft_wrap_mode_override.is_some() {
11214 self.soft_wrap_mode_override.take();
11215 } else {
11216 let soft_wrap = match self.soft_wrap_mode(cx) {
11217 SoftWrap::GitDiff => return,
11218 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11219 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11220 language_settings::SoftWrap::None
11221 }
11222 };
11223 self.soft_wrap_mode_override = Some(soft_wrap);
11224 }
11225 cx.notify();
11226 }
11227
11228 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11229 let Some(workspace) = self.workspace() else {
11230 return;
11231 };
11232 let fs = workspace.read(cx).app_state().fs.clone();
11233 let current_show = TabBarSettings::get_global(cx).show;
11234 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11235 setting.show = Some(!current_show);
11236 });
11237 }
11238
11239 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11240 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11241 self.buffer
11242 .read(cx)
11243 .settings_at(0, cx)
11244 .indent_guides
11245 .enabled
11246 });
11247 self.show_indent_guides = Some(!currently_enabled);
11248 cx.notify();
11249 }
11250
11251 fn should_show_indent_guides(&self) -> Option<bool> {
11252 self.show_indent_guides
11253 }
11254
11255 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11256 let mut editor_settings = EditorSettings::get_global(cx).clone();
11257 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11258 EditorSettings::override_global(editor_settings, cx);
11259 }
11260
11261 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11262 self.use_relative_line_numbers
11263 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11264 }
11265
11266 pub fn toggle_relative_line_numbers(
11267 &mut self,
11268 _: &ToggleRelativeLineNumbers,
11269 cx: &mut ViewContext<Self>,
11270 ) {
11271 let is_relative = self.should_use_relative_line_numbers(cx);
11272 self.set_relative_line_number(Some(!is_relative), cx)
11273 }
11274
11275 pub fn set_relative_line_number(
11276 &mut self,
11277 is_relative: Option<bool>,
11278 cx: &mut ViewContext<Self>,
11279 ) {
11280 self.use_relative_line_numbers = is_relative;
11281 cx.notify();
11282 }
11283
11284 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11285 self.show_gutter = show_gutter;
11286 cx.notify();
11287 }
11288
11289 pub fn set_show_scrollbars(&mut self, show_scrollbars: bool, cx: &mut ViewContext<Self>) {
11290 self.show_scrollbars = show_scrollbars;
11291 cx.notify();
11292 }
11293
11294 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11295 self.show_line_numbers = Some(show_line_numbers);
11296 cx.notify();
11297 }
11298
11299 pub fn set_show_git_diff_gutter(
11300 &mut self,
11301 show_git_diff_gutter: bool,
11302 cx: &mut ViewContext<Self>,
11303 ) {
11304 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11305 cx.notify();
11306 }
11307
11308 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11309 self.show_code_actions = Some(show_code_actions);
11310 cx.notify();
11311 }
11312
11313 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11314 self.show_runnables = Some(show_runnables);
11315 cx.notify();
11316 }
11317
11318 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11319 if self.display_map.read(cx).masked != masked {
11320 self.display_map.update(cx, |map, _| map.masked = masked);
11321 }
11322 cx.notify()
11323 }
11324
11325 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11326 self.show_wrap_guides = Some(show_wrap_guides);
11327 cx.notify();
11328 }
11329
11330 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11331 self.show_indent_guides = Some(show_indent_guides);
11332 cx.notify();
11333 }
11334
11335 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11336 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11337 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11338 if let Some(dir) = file.abs_path(cx).parent() {
11339 return Some(dir.to_owned());
11340 }
11341 }
11342
11343 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11344 return Some(project_path.path.to_path_buf());
11345 }
11346 }
11347
11348 None
11349 }
11350
11351 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11352 self.active_excerpt(cx)?
11353 .1
11354 .read(cx)
11355 .file()
11356 .and_then(|f| f.as_local())
11357 }
11358
11359 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11360 if let Some(target) = self.target_file(cx) {
11361 cx.reveal_path(&target.abs_path(cx));
11362 }
11363 }
11364
11365 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11366 if let Some(file) = self.target_file(cx) {
11367 if let Some(path) = file.abs_path(cx).to_str() {
11368 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11369 }
11370 }
11371 }
11372
11373 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11374 if let Some(file) = self.target_file(cx) {
11375 if let Some(path) = file.path().to_str() {
11376 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11377 }
11378 }
11379 }
11380
11381 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11382 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11383
11384 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11385 self.start_git_blame(true, cx);
11386 }
11387
11388 cx.notify();
11389 }
11390
11391 pub fn toggle_git_blame_inline(
11392 &mut self,
11393 _: &ToggleGitBlameInline,
11394 cx: &mut ViewContext<Self>,
11395 ) {
11396 self.toggle_git_blame_inline_internal(true, cx);
11397 cx.notify();
11398 }
11399
11400 pub fn git_blame_inline_enabled(&self) -> bool {
11401 self.git_blame_inline_enabled
11402 }
11403
11404 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11405 self.show_selection_menu = self
11406 .show_selection_menu
11407 .map(|show_selections_menu| !show_selections_menu)
11408 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11409
11410 cx.notify();
11411 }
11412
11413 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11414 self.show_selection_menu
11415 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11416 }
11417
11418 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11419 if let Some(project) = self.project.as_ref() {
11420 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11421 return;
11422 };
11423
11424 if buffer.read(cx).file().is_none() {
11425 return;
11426 }
11427
11428 let focused = self.focus_handle(cx).contains_focused(cx);
11429
11430 let project = project.clone();
11431 let blame =
11432 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11433 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11434 self.blame = Some(blame);
11435 }
11436 }
11437
11438 fn toggle_git_blame_inline_internal(
11439 &mut self,
11440 user_triggered: bool,
11441 cx: &mut ViewContext<Self>,
11442 ) {
11443 if self.git_blame_inline_enabled {
11444 self.git_blame_inline_enabled = false;
11445 self.show_git_blame_inline = false;
11446 self.show_git_blame_inline_delay_task.take();
11447 } else {
11448 self.git_blame_inline_enabled = true;
11449 self.start_git_blame_inline(user_triggered, cx);
11450 }
11451
11452 cx.notify();
11453 }
11454
11455 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11456 self.start_git_blame(user_triggered, cx);
11457
11458 if ProjectSettings::get_global(cx)
11459 .git
11460 .inline_blame_delay()
11461 .is_some()
11462 {
11463 self.start_inline_blame_timer(cx);
11464 } else {
11465 self.show_git_blame_inline = true
11466 }
11467 }
11468
11469 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11470 self.blame.as_ref()
11471 }
11472
11473 pub fn show_git_blame_gutter(&self) -> bool {
11474 self.show_git_blame_gutter
11475 }
11476
11477 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11478 self.show_git_blame_gutter && self.has_blame_entries(cx)
11479 }
11480
11481 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11482 self.show_git_blame_inline
11483 && self.focus_handle.is_focused(cx)
11484 && !self.newest_selection_head_on_empty_line(cx)
11485 && self.has_blame_entries(cx)
11486 }
11487
11488 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11489 self.blame()
11490 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11491 }
11492
11493 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11494 let cursor_anchor = self.selections.newest_anchor().head();
11495
11496 let snapshot = self.buffer.read(cx).snapshot(cx);
11497 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11498
11499 snapshot.line_len(buffer_row) == 0
11500 }
11501
11502 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11503 let buffer_and_selection = maybe!({
11504 let selection = self.selections.newest::<Point>(cx);
11505 let selection_range = selection.range();
11506
11507 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11508 (buffer, selection_range.start.row..selection_range.end.row)
11509 } else {
11510 let multi_buffer = self.buffer().read(cx);
11511 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
11512 let buffer_ranges = multi_buffer_snapshot.range_to_buffer_ranges(selection_range);
11513
11514 let (excerpt, range) = if selection.reversed {
11515 buffer_ranges.first()
11516 } else {
11517 buffer_ranges.last()
11518 }?;
11519
11520 let snapshot = excerpt.buffer();
11521 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11522 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11523 (
11524 multi_buffer.buffer(excerpt.buffer_id()).unwrap().clone(),
11525 selection,
11526 )
11527 };
11528
11529 Some((buffer, selection))
11530 });
11531
11532 let Some((buffer, selection)) = buffer_and_selection else {
11533 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11534 };
11535
11536 let Some(project) = self.project.as_ref() else {
11537 return Task::ready(Err(anyhow!("editor does not have project")));
11538 };
11539
11540 project.update(cx, |project, cx| {
11541 project.get_permalink_to_line(&buffer, selection, cx)
11542 })
11543 }
11544
11545 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11546 let permalink_task = self.get_permalink_to_line(cx);
11547 let workspace = self.workspace();
11548
11549 cx.spawn(|_, mut cx| async move {
11550 match permalink_task.await {
11551 Ok(permalink) => {
11552 cx.update(|cx| {
11553 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11554 })
11555 .ok();
11556 }
11557 Err(err) => {
11558 let message = format!("Failed to copy permalink: {err}");
11559
11560 Err::<(), anyhow::Error>(err).log_err();
11561
11562 if let Some(workspace) = workspace {
11563 workspace
11564 .update(&mut cx, |workspace, cx| {
11565 struct CopyPermalinkToLine;
11566
11567 workspace.show_toast(
11568 Toast::new(
11569 NotificationId::unique::<CopyPermalinkToLine>(),
11570 message,
11571 ),
11572 cx,
11573 )
11574 })
11575 .ok();
11576 }
11577 }
11578 }
11579 })
11580 .detach();
11581 }
11582
11583 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11584 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11585 if let Some(file) = self.target_file(cx) {
11586 if let Some(path) = file.path().to_str() {
11587 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11588 }
11589 }
11590 }
11591
11592 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11593 let permalink_task = self.get_permalink_to_line(cx);
11594 let workspace = self.workspace();
11595
11596 cx.spawn(|_, mut cx| async move {
11597 match permalink_task.await {
11598 Ok(permalink) => {
11599 cx.update(|cx| {
11600 cx.open_url(permalink.as_ref());
11601 })
11602 .ok();
11603 }
11604 Err(err) => {
11605 let message = format!("Failed to open permalink: {err}");
11606
11607 Err::<(), anyhow::Error>(err).log_err();
11608
11609 if let Some(workspace) = workspace {
11610 workspace
11611 .update(&mut cx, |workspace, cx| {
11612 struct OpenPermalinkToLine;
11613
11614 workspace.show_toast(
11615 Toast::new(
11616 NotificationId::unique::<OpenPermalinkToLine>(),
11617 message,
11618 ),
11619 cx,
11620 )
11621 })
11622 .ok();
11623 }
11624 }
11625 }
11626 })
11627 .detach();
11628 }
11629
11630 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11631 self.insert_uuid(UuidVersion::V4, cx);
11632 }
11633
11634 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11635 self.insert_uuid(UuidVersion::V7, cx);
11636 }
11637
11638 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11639 self.transact(cx, |this, cx| {
11640 let edits = this
11641 .selections
11642 .all::<Point>(cx)
11643 .into_iter()
11644 .map(|selection| {
11645 let uuid = match version {
11646 UuidVersion::V4 => uuid::Uuid::new_v4(),
11647 UuidVersion::V7 => uuid::Uuid::now_v7(),
11648 };
11649
11650 (selection.range(), uuid.to_string())
11651 });
11652 this.edit(edits, cx);
11653 this.refresh_inline_completion(true, false, cx);
11654 });
11655 }
11656
11657 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11658 /// last highlight added will be used.
11659 ///
11660 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11661 pub fn highlight_rows<T: 'static>(
11662 &mut self,
11663 range: Range<Anchor>,
11664 color: Hsla,
11665 should_autoscroll: bool,
11666 cx: &mut ViewContext<Self>,
11667 ) {
11668 let snapshot = self.buffer().read(cx).snapshot(cx);
11669 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11670 let ix = row_highlights.binary_search_by(|highlight| {
11671 Ordering::Equal
11672 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11673 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11674 });
11675
11676 if let Err(mut ix) = ix {
11677 let index = post_inc(&mut self.highlight_order);
11678
11679 // If this range intersects with the preceding highlight, then merge it with
11680 // the preceding highlight. Otherwise insert a new highlight.
11681 let mut merged = false;
11682 if ix > 0 {
11683 let prev_highlight = &mut row_highlights[ix - 1];
11684 if prev_highlight
11685 .range
11686 .end
11687 .cmp(&range.start, &snapshot)
11688 .is_ge()
11689 {
11690 ix -= 1;
11691 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11692 prev_highlight.range.end = range.end;
11693 }
11694 merged = true;
11695 prev_highlight.index = index;
11696 prev_highlight.color = color;
11697 prev_highlight.should_autoscroll = should_autoscroll;
11698 }
11699 }
11700
11701 if !merged {
11702 row_highlights.insert(
11703 ix,
11704 RowHighlight {
11705 range: range.clone(),
11706 index,
11707 color,
11708 should_autoscroll,
11709 },
11710 );
11711 }
11712
11713 // If any of the following highlights intersect with this one, merge them.
11714 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11715 let highlight = &row_highlights[ix];
11716 if next_highlight
11717 .range
11718 .start
11719 .cmp(&highlight.range.end, &snapshot)
11720 .is_le()
11721 {
11722 if next_highlight
11723 .range
11724 .end
11725 .cmp(&highlight.range.end, &snapshot)
11726 .is_gt()
11727 {
11728 row_highlights[ix].range.end = next_highlight.range.end;
11729 }
11730 row_highlights.remove(ix + 1);
11731 } else {
11732 break;
11733 }
11734 }
11735 }
11736 }
11737
11738 /// Remove any highlighted row ranges of the given type that intersect the
11739 /// given ranges.
11740 pub fn remove_highlighted_rows<T: 'static>(
11741 &mut self,
11742 ranges_to_remove: Vec<Range<Anchor>>,
11743 cx: &mut ViewContext<Self>,
11744 ) {
11745 let snapshot = self.buffer().read(cx).snapshot(cx);
11746 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11747 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11748 row_highlights.retain(|highlight| {
11749 while let Some(range_to_remove) = ranges_to_remove.peek() {
11750 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11751 Ordering::Less | Ordering::Equal => {
11752 ranges_to_remove.next();
11753 }
11754 Ordering::Greater => {
11755 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11756 Ordering::Less | Ordering::Equal => {
11757 return false;
11758 }
11759 Ordering::Greater => break,
11760 }
11761 }
11762 }
11763 }
11764
11765 true
11766 })
11767 }
11768
11769 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11770 pub fn clear_row_highlights<T: 'static>(&mut self) {
11771 self.highlighted_rows.remove(&TypeId::of::<T>());
11772 }
11773
11774 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11775 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11776 self.highlighted_rows
11777 .get(&TypeId::of::<T>())
11778 .map_or(&[] as &[_], |vec| vec.as_slice())
11779 .iter()
11780 .map(|highlight| (highlight.range.clone(), highlight.color))
11781 }
11782
11783 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11784 /// Returns a map of display rows that are highlighted and their corresponding highlight color.
11785 /// Allows to ignore certain kinds of highlights.
11786 pub fn highlighted_display_rows(
11787 &mut self,
11788 cx: &mut WindowContext,
11789 ) -> BTreeMap<DisplayRow, Hsla> {
11790 let snapshot = self.snapshot(cx);
11791 let mut used_highlight_orders = HashMap::default();
11792 self.highlighted_rows
11793 .iter()
11794 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11795 .fold(
11796 BTreeMap::<DisplayRow, Hsla>::new(),
11797 |mut unique_rows, highlight| {
11798 let start = highlight.range.start.to_display_point(&snapshot);
11799 let end = highlight.range.end.to_display_point(&snapshot);
11800 let start_row = start.row().0;
11801 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11802 && end.column() == 0
11803 {
11804 end.row().0.saturating_sub(1)
11805 } else {
11806 end.row().0
11807 };
11808 for row in start_row..=end_row {
11809 let used_index =
11810 used_highlight_orders.entry(row).or_insert(highlight.index);
11811 if highlight.index >= *used_index {
11812 *used_index = highlight.index;
11813 unique_rows.insert(DisplayRow(row), highlight.color);
11814 }
11815 }
11816 unique_rows
11817 },
11818 )
11819 }
11820
11821 pub fn highlighted_display_row_for_autoscroll(
11822 &self,
11823 snapshot: &DisplaySnapshot,
11824 ) -> Option<DisplayRow> {
11825 self.highlighted_rows
11826 .values()
11827 .flat_map(|highlighted_rows| highlighted_rows.iter())
11828 .filter_map(|highlight| {
11829 if highlight.should_autoscroll {
11830 Some(highlight.range.start.to_display_point(snapshot).row())
11831 } else {
11832 None
11833 }
11834 })
11835 .min()
11836 }
11837
11838 pub fn set_search_within_ranges(
11839 &mut self,
11840 ranges: &[Range<Anchor>],
11841 cx: &mut ViewContext<Self>,
11842 ) {
11843 self.highlight_background::<SearchWithinRange>(
11844 ranges,
11845 |colors| colors.editor_document_highlight_read_background,
11846 cx,
11847 )
11848 }
11849
11850 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11851 self.breadcrumb_header = Some(new_header);
11852 }
11853
11854 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11855 self.clear_background_highlights::<SearchWithinRange>(cx);
11856 }
11857
11858 pub fn highlight_background<T: 'static>(
11859 &mut self,
11860 ranges: &[Range<Anchor>],
11861 color_fetcher: fn(&ThemeColors) -> Hsla,
11862 cx: &mut ViewContext<Self>,
11863 ) {
11864 self.background_highlights
11865 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11866 self.scrollbar_marker_state.dirty = true;
11867 cx.notify();
11868 }
11869
11870 pub fn clear_background_highlights<T: 'static>(
11871 &mut self,
11872 cx: &mut ViewContext<Self>,
11873 ) -> Option<BackgroundHighlight> {
11874 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11875 if !text_highlights.1.is_empty() {
11876 self.scrollbar_marker_state.dirty = true;
11877 cx.notify();
11878 }
11879 Some(text_highlights)
11880 }
11881
11882 pub fn highlight_gutter<T: 'static>(
11883 &mut self,
11884 ranges: &[Range<Anchor>],
11885 color_fetcher: fn(&AppContext) -> Hsla,
11886 cx: &mut ViewContext<Self>,
11887 ) {
11888 self.gutter_highlights
11889 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11890 cx.notify();
11891 }
11892
11893 pub fn clear_gutter_highlights<T: 'static>(
11894 &mut self,
11895 cx: &mut ViewContext<Self>,
11896 ) -> Option<GutterHighlight> {
11897 cx.notify();
11898 self.gutter_highlights.remove(&TypeId::of::<T>())
11899 }
11900
11901 #[cfg(feature = "test-support")]
11902 pub fn all_text_background_highlights(
11903 &mut self,
11904 cx: &mut ViewContext<Self>,
11905 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11906 let snapshot = self.snapshot(cx);
11907 let buffer = &snapshot.buffer_snapshot;
11908 let start = buffer.anchor_before(0);
11909 let end = buffer.anchor_after(buffer.len());
11910 let theme = cx.theme().colors();
11911 self.background_highlights_in_range(start..end, &snapshot, theme)
11912 }
11913
11914 #[cfg(feature = "test-support")]
11915 pub fn search_background_highlights(
11916 &mut self,
11917 cx: &mut ViewContext<Self>,
11918 ) -> Vec<Range<Point>> {
11919 let snapshot = self.buffer().read(cx).snapshot(cx);
11920
11921 let highlights = self
11922 .background_highlights
11923 .get(&TypeId::of::<items::BufferSearchHighlights>());
11924
11925 if let Some((_color, ranges)) = highlights {
11926 ranges
11927 .iter()
11928 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11929 .collect_vec()
11930 } else {
11931 vec![]
11932 }
11933 }
11934
11935 fn document_highlights_for_position<'a>(
11936 &'a self,
11937 position: Anchor,
11938 buffer: &'a MultiBufferSnapshot,
11939 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11940 let read_highlights = self
11941 .background_highlights
11942 .get(&TypeId::of::<DocumentHighlightRead>())
11943 .map(|h| &h.1);
11944 let write_highlights = self
11945 .background_highlights
11946 .get(&TypeId::of::<DocumentHighlightWrite>())
11947 .map(|h| &h.1);
11948 let left_position = position.bias_left(buffer);
11949 let right_position = position.bias_right(buffer);
11950 read_highlights
11951 .into_iter()
11952 .chain(write_highlights)
11953 .flat_map(move |ranges| {
11954 let start_ix = match ranges.binary_search_by(|probe| {
11955 let cmp = probe.end.cmp(&left_position, buffer);
11956 if cmp.is_ge() {
11957 Ordering::Greater
11958 } else {
11959 Ordering::Less
11960 }
11961 }) {
11962 Ok(i) | Err(i) => i,
11963 };
11964
11965 ranges[start_ix..]
11966 .iter()
11967 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11968 })
11969 }
11970
11971 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11972 self.background_highlights
11973 .get(&TypeId::of::<T>())
11974 .map_or(false, |(_, highlights)| !highlights.is_empty())
11975 }
11976
11977 pub fn background_highlights_in_range(
11978 &self,
11979 search_range: Range<Anchor>,
11980 display_snapshot: &DisplaySnapshot,
11981 theme: &ThemeColors,
11982 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11983 let mut results = Vec::new();
11984 for (color_fetcher, ranges) in self.background_highlights.values() {
11985 let color = color_fetcher(theme);
11986 let start_ix = match ranges.binary_search_by(|probe| {
11987 let cmp = probe
11988 .end
11989 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11990 if cmp.is_gt() {
11991 Ordering::Greater
11992 } else {
11993 Ordering::Less
11994 }
11995 }) {
11996 Ok(i) | Err(i) => i,
11997 };
11998 for range in &ranges[start_ix..] {
11999 if range
12000 .start
12001 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12002 .is_ge()
12003 {
12004 break;
12005 }
12006
12007 let start = range.start.to_display_point(display_snapshot);
12008 let end = range.end.to_display_point(display_snapshot);
12009 results.push((start..end, color))
12010 }
12011 }
12012 results
12013 }
12014
12015 pub fn background_highlight_row_ranges<T: 'static>(
12016 &self,
12017 search_range: Range<Anchor>,
12018 display_snapshot: &DisplaySnapshot,
12019 count: usize,
12020 ) -> Vec<RangeInclusive<DisplayPoint>> {
12021 let mut results = Vec::new();
12022 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12023 return vec![];
12024 };
12025
12026 let start_ix = match ranges.binary_search_by(|probe| {
12027 let cmp = probe
12028 .end
12029 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12030 if cmp.is_gt() {
12031 Ordering::Greater
12032 } else {
12033 Ordering::Less
12034 }
12035 }) {
12036 Ok(i) | Err(i) => i,
12037 };
12038 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12039 if let (Some(start_display), Some(end_display)) = (start, end) {
12040 results.push(
12041 start_display.to_display_point(display_snapshot)
12042 ..=end_display.to_display_point(display_snapshot),
12043 );
12044 }
12045 };
12046 let mut start_row: Option<Point> = None;
12047 let mut end_row: Option<Point> = None;
12048 if ranges.len() > count {
12049 return Vec::new();
12050 }
12051 for range in &ranges[start_ix..] {
12052 if range
12053 .start
12054 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12055 .is_ge()
12056 {
12057 break;
12058 }
12059 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12060 if let Some(current_row) = &end_row {
12061 if end.row == current_row.row {
12062 continue;
12063 }
12064 }
12065 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12066 if start_row.is_none() {
12067 assert_eq!(end_row, None);
12068 start_row = Some(start);
12069 end_row = Some(end);
12070 continue;
12071 }
12072 if let Some(current_end) = end_row.as_mut() {
12073 if start.row > current_end.row + 1 {
12074 push_region(start_row, end_row);
12075 start_row = Some(start);
12076 end_row = Some(end);
12077 } else {
12078 // Merge two hunks.
12079 *current_end = end;
12080 }
12081 } else {
12082 unreachable!();
12083 }
12084 }
12085 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12086 push_region(start_row, end_row);
12087 results
12088 }
12089
12090 pub fn gutter_highlights_in_range(
12091 &self,
12092 search_range: Range<Anchor>,
12093 display_snapshot: &DisplaySnapshot,
12094 cx: &AppContext,
12095 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12096 let mut results = Vec::new();
12097 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12098 let color = color_fetcher(cx);
12099 let start_ix = match ranges.binary_search_by(|probe| {
12100 let cmp = probe
12101 .end
12102 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12103 if cmp.is_gt() {
12104 Ordering::Greater
12105 } else {
12106 Ordering::Less
12107 }
12108 }) {
12109 Ok(i) | Err(i) => i,
12110 };
12111 for range in &ranges[start_ix..] {
12112 if range
12113 .start
12114 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12115 .is_ge()
12116 {
12117 break;
12118 }
12119
12120 let start = range.start.to_display_point(display_snapshot);
12121 let end = range.end.to_display_point(display_snapshot);
12122 results.push((start..end, color))
12123 }
12124 }
12125 results
12126 }
12127
12128 /// Get the text ranges corresponding to the redaction query
12129 pub fn redacted_ranges(
12130 &self,
12131 search_range: Range<Anchor>,
12132 display_snapshot: &DisplaySnapshot,
12133 cx: &WindowContext,
12134 ) -> Vec<Range<DisplayPoint>> {
12135 display_snapshot
12136 .buffer_snapshot
12137 .redacted_ranges(search_range, |file| {
12138 if let Some(file) = file {
12139 file.is_private()
12140 && EditorSettings::get(
12141 Some(SettingsLocation {
12142 worktree_id: file.worktree_id(cx),
12143 path: file.path().as_ref(),
12144 }),
12145 cx,
12146 )
12147 .redact_private_values
12148 } else {
12149 false
12150 }
12151 })
12152 .map(|range| {
12153 range.start.to_display_point(display_snapshot)
12154 ..range.end.to_display_point(display_snapshot)
12155 })
12156 .collect()
12157 }
12158
12159 pub fn highlight_text<T: 'static>(
12160 &mut self,
12161 ranges: Vec<Range<Anchor>>,
12162 style: HighlightStyle,
12163 cx: &mut ViewContext<Self>,
12164 ) {
12165 self.display_map.update(cx, |map, _| {
12166 map.highlight_text(TypeId::of::<T>(), ranges, style)
12167 });
12168 cx.notify();
12169 }
12170
12171 pub(crate) fn highlight_inlays<T: 'static>(
12172 &mut self,
12173 highlights: Vec<InlayHighlight>,
12174 style: HighlightStyle,
12175 cx: &mut ViewContext<Self>,
12176 ) {
12177 self.display_map.update(cx, |map, _| {
12178 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12179 });
12180 cx.notify();
12181 }
12182
12183 pub fn text_highlights<'a, T: 'static>(
12184 &'a self,
12185 cx: &'a AppContext,
12186 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12187 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12188 }
12189
12190 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12191 let cleared = self
12192 .display_map
12193 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12194 if cleared {
12195 cx.notify();
12196 }
12197 }
12198
12199 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12200 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12201 && self.focus_handle.is_focused(cx)
12202 }
12203
12204 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12205 self.show_cursor_when_unfocused = is_enabled;
12206 cx.notify();
12207 }
12208
12209 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12210 self.project
12211 .as_ref()
12212 .map(|project| project.read(cx).lsp_store())
12213 }
12214
12215 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12216 cx.notify();
12217 }
12218
12219 fn on_buffer_event(
12220 &mut self,
12221 multibuffer: Model<MultiBuffer>,
12222 event: &multi_buffer::Event,
12223 cx: &mut ViewContext<Self>,
12224 ) {
12225 match event {
12226 multi_buffer::Event::Edited {
12227 singleton_buffer_edited,
12228 edited_buffer: buffer_edited,
12229 } => {
12230 self.scrollbar_marker_state.dirty = true;
12231 self.active_indent_guides_state.dirty = true;
12232 self.refresh_active_diagnostics(cx);
12233 self.refresh_code_actions(cx);
12234 if self.has_active_inline_completion() {
12235 self.update_visible_inline_completion(cx);
12236 }
12237 if let Some(buffer) = buffer_edited {
12238 let buffer_id = buffer.read(cx).remote_id();
12239 if !self.registered_buffers.contains_key(&buffer_id) {
12240 if let Some(lsp_store) = self.lsp_store(cx) {
12241 lsp_store.update(cx, |lsp_store, cx| {
12242 self.registered_buffers.insert(
12243 buffer_id,
12244 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12245 );
12246 })
12247 }
12248 }
12249 }
12250 cx.emit(EditorEvent::BufferEdited);
12251 cx.emit(SearchEvent::MatchesInvalidated);
12252 if *singleton_buffer_edited {
12253 if let Some(project) = &self.project {
12254 let project = project.read(cx);
12255 #[allow(clippy::mutable_key_type)]
12256 let languages_affected = multibuffer
12257 .read(cx)
12258 .all_buffers()
12259 .into_iter()
12260 .filter_map(|buffer| {
12261 let buffer = buffer.read(cx);
12262 let language = buffer.language()?;
12263 if project.is_local()
12264 && project
12265 .language_servers_for_local_buffer(buffer, cx)
12266 .count()
12267 == 0
12268 {
12269 None
12270 } else {
12271 Some(language)
12272 }
12273 })
12274 .cloned()
12275 .collect::<HashSet<_>>();
12276 if !languages_affected.is_empty() {
12277 self.refresh_inlay_hints(
12278 InlayHintRefreshReason::BufferEdited(languages_affected),
12279 cx,
12280 );
12281 }
12282 }
12283 }
12284
12285 let Some(project) = &self.project else { return };
12286 let (telemetry, is_via_ssh) = {
12287 let project = project.read(cx);
12288 let telemetry = project.client().telemetry().clone();
12289 let is_via_ssh = project.is_via_ssh();
12290 (telemetry, is_via_ssh)
12291 };
12292 refresh_linked_ranges(self, cx);
12293 telemetry.log_edit_event("editor", is_via_ssh);
12294 }
12295 multi_buffer::Event::ExcerptsAdded {
12296 buffer,
12297 predecessor,
12298 excerpts,
12299 } => {
12300 self.tasks_update_task = Some(self.refresh_runnables(cx));
12301 let buffer_id = buffer.read(cx).remote_id();
12302 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12303 if let Some(project) = &self.project {
12304 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12305 }
12306 }
12307 cx.emit(EditorEvent::ExcerptsAdded {
12308 buffer: buffer.clone(),
12309 predecessor: *predecessor,
12310 excerpts: excerpts.clone(),
12311 });
12312 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12313 }
12314 multi_buffer::Event::ExcerptsRemoved { ids } => {
12315 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12316 let buffer = self.buffer.read(cx);
12317 self.registered_buffers
12318 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12319 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12320 }
12321 multi_buffer::Event::ExcerptsEdited { ids } => {
12322 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12323 }
12324 multi_buffer::Event::ExcerptsExpanded { ids } => {
12325 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12326 }
12327 multi_buffer::Event::Reparsed(buffer_id) => {
12328 self.tasks_update_task = Some(self.refresh_runnables(cx));
12329
12330 cx.emit(EditorEvent::Reparsed(*buffer_id));
12331 }
12332 multi_buffer::Event::LanguageChanged(buffer_id) => {
12333 linked_editing_ranges::refresh_linked_ranges(self, cx);
12334 cx.emit(EditorEvent::Reparsed(*buffer_id));
12335 cx.notify();
12336 }
12337 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12338 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12339 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12340 cx.emit(EditorEvent::TitleChanged)
12341 }
12342 // multi_buffer::Event::DiffBaseChanged => {
12343 // self.scrollbar_marker_state.dirty = true;
12344 // cx.emit(EditorEvent::DiffBaseChanged);
12345 // cx.notify();
12346 // }
12347 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12348 multi_buffer::Event::DiagnosticsUpdated => {
12349 self.refresh_active_diagnostics(cx);
12350 self.scrollbar_marker_state.dirty = true;
12351 cx.notify();
12352 }
12353 _ => {}
12354 };
12355 }
12356
12357 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12358 cx.notify();
12359 }
12360
12361 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12362 self.tasks_update_task = Some(self.refresh_runnables(cx));
12363 self.refresh_inline_completion(true, false, cx);
12364 self.refresh_inlay_hints(
12365 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12366 self.selections.newest_anchor().head(),
12367 &self.buffer.read(cx).snapshot(cx),
12368 cx,
12369 )),
12370 cx,
12371 );
12372
12373 let old_cursor_shape = self.cursor_shape;
12374
12375 {
12376 let editor_settings = EditorSettings::get_global(cx);
12377 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12378 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12379 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12380 }
12381
12382 if old_cursor_shape != self.cursor_shape {
12383 cx.emit(EditorEvent::CursorShapeChanged);
12384 }
12385
12386 let project_settings = ProjectSettings::get_global(cx);
12387 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12388
12389 if self.mode == EditorMode::Full {
12390 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12391 if self.git_blame_inline_enabled != inline_blame_enabled {
12392 self.toggle_git_blame_inline_internal(false, cx);
12393 }
12394 }
12395
12396 cx.notify();
12397 }
12398
12399 pub fn set_searchable(&mut self, searchable: bool) {
12400 self.searchable = searchable;
12401 }
12402
12403 pub fn searchable(&self) -> bool {
12404 self.searchable
12405 }
12406
12407 fn open_proposed_changes_editor(
12408 &mut self,
12409 _: &OpenProposedChangesEditor,
12410 cx: &mut ViewContext<Self>,
12411 ) {
12412 let Some(workspace) = self.workspace() else {
12413 cx.propagate();
12414 return;
12415 };
12416
12417 let selections = self.selections.all::<usize>(cx);
12418 let multi_buffer = self.buffer.read(cx);
12419 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
12420 let mut new_selections_by_buffer = HashMap::default();
12421 for selection in selections {
12422 for (excerpt, range) in
12423 multi_buffer_snapshot.range_to_buffer_ranges(selection.start..selection.end)
12424 {
12425 let mut range = range.to_point(excerpt.buffer());
12426 range.start.column = 0;
12427 range.end.column = excerpt.buffer().line_len(range.end.row);
12428 new_selections_by_buffer
12429 .entry(multi_buffer.buffer(excerpt.buffer_id()).unwrap())
12430 .or_insert(Vec::new())
12431 .push(range)
12432 }
12433 }
12434
12435 let proposed_changes_buffers = new_selections_by_buffer
12436 .into_iter()
12437 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12438 .collect::<Vec<_>>();
12439 let proposed_changes_editor = cx.new_view(|cx| {
12440 ProposedChangesEditor::new(
12441 "Proposed changes",
12442 proposed_changes_buffers,
12443 self.project.clone(),
12444 cx,
12445 )
12446 });
12447
12448 cx.window_context().defer(move |cx| {
12449 workspace.update(cx, |workspace, cx| {
12450 workspace.active_pane().update(cx, |pane, cx| {
12451 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12452 });
12453 });
12454 });
12455 }
12456
12457 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12458 self.open_excerpts_common(None, true, cx)
12459 }
12460
12461 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12462 self.open_excerpts_common(None, false, cx)
12463 }
12464
12465 fn open_excerpts_common(
12466 &mut self,
12467 jump_data: Option<JumpData>,
12468 split: bool,
12469 cx: &mut ViewContext<Self>,
12470 ) {
12471 let Some(workspace) = self.workspace() else {
12472 cx.propagate();
12473 return;
12474 };
12475
12476 if self.buffer.read(cx).is_singleton() {
12477 cx.propagate();
12478 return;
12479 }
12480
12481 let mut new_selections_by_buffer = HashMap::default();
12482 match &jump_data {
12483 Some(JumpData::MultiBufferPoint {
12484 excerpt_id,
12485 position,
12486 anchor,
12487 line_offset_from_top,
12488 }) => {
12489 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12490 if let Some(buffer) = multi_buffer_snapshot
12491 .buffer_id_for_excerpt(*excerpt_id)
12492 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12493 {
12494 let buffer_snapshot = buffer.read(cx).snapshot();
12495 let jump_to_point = if buffer_snapshot.can_resolve(anchor) {
12496 language::ToPoint::to_point(anchor, &buffer_snapshot)
12497 } else {
12498 buffer_snapshot.clip_point(*position, Bias::Left)
12499 };
12500 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12501 new_selections_by_buffer.insert(
12502 buffer,
12503 (
12504 vec![jump_to_offset..jump_to_offset],
12505 Some(*line_offset_from_top),
12506 ),
12507 );
12508 }
12509 }
12510 Some(JumpData::MultiBufferRow {
12511 row,
12512 line_offset_from_top,
12513 }) => {
12514 let point = MultiBufferPoint::new(row.0, 0);
12515 if let Some((buffer, buffer_point, _)) =
12516 self.buffer.read(cx).point_to_buffer_point(point, cx)
12517 {
12518 let buffer_offset = buffer.read(cx).point_to_offset(buffer_point);
12519 new_selections_by_buffer
12520 .entry(buffer)
12521 .or_insert((Vec::new(), Some(*line_offset_from_top)))
12522 .0
12523 .push(buffer_offset..buffer_offset)
12524 }
12525 }
12526 None => {
12527 let selections = self.selections.all::<usize>(cx);
12528 let multi_buffer = self.buffer.read(cx);
12529 for selection in selections {
12530 for (excerpt, mut range) in multi_buffer
12531 .snapshot(cx)
12532 .range_to_buffer_ranges(selection.range())
12533 {
12534 // When editing branch buffers, jump to the corresponding location
12535 // in their base buffer.
12536 let mut buffer_handle = multi_buffer.buffer(excerpt.buffer_id()).unwrap();
12537 let buffer = buffer_handle.read(cx);
12538 if let Some(base_buffer) = buffer.base_buffer() {
12539 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12540 buffer_handle = base_buffer;
12541 }
12542
12543 if selection.reversed {
12544 mem::swap(&mut range.start, &mut range.end);
12545 }
12546 new_selections_by_buffer
12547 .entry(buffer_handle)
12548 .or_insert((Vec::new(), None))
12549 .0
12550 .push(range)
12551 }
12552 }
12553 }
12554 }
12555
12556 if new_selections_by_buffer.is_empty() {
12557 return;
12558 }
12559
12560 // We defer the pane interaction because we ourselves are a workspace item
12561 // and activating a new item causes the pane to call a method on us reentrantly,
12562 // which panics if we're on the stack.
12563 cx.window_context().defer(move |cx| {
12564 workspace.update(cx, |workspace, cx| {
12565 let pane = if split {
12566 workspace.adjacent_pane(cx)
12567 } else {
12568 workspace.active_pane().clone()
12569 };
12570
12571 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12572 let editor = buffer
12573 .read(cx)
12574 .file()
12575 .is_none()
12576 .then(|| {
12577 // Handle file-less buffers separately: those are not really the project items, so won't have a project path or entity id,
12578 // so `workspace.open_project_item` will never find them, always opening a new editor.
12579 // Instead, we try to activate the existing editor in the pane first.
12580 let (editor, pane_item_index) =
12581 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12582 let editor = item.downcast::<Editor>()?;
12583 let singleton_buffer =
12584 editor.read(cx).buffer().read(cx).as_singleton()?;
12585 if singleton_buffer == buffer {
12586 Some((editor, i))
12587 } else {
12588 None
12589 }
12590 })?;
12591 pane.update(cx, |pane, cx| {
12592 pane.activate_item(pane_item_index, true, true, cx)
12593 });
12594 Some(editor)
12595 })
12596 .flatten()
12597 .unwrap_or_else(|| {
12598 workspace.open_project_item::<Self>(
12599 pane.clone(),
12600 buffer,
12601 true,
12602 true,
12603 cx,
12604 )
12605 });
12606
12607 editor.update(cx, |editor, cx| {
12608 let autoscroll = match scroll_offset {
12609 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12610 None => Autoscroll::newest(),
12611 };
12612 let nav_history = editor.nav_history.take();
12613 editor.change_selections(Some(autoscroll), cx, |s| {
12614 s.select_ranges(ranges);
12615 });
12616 editor.nav_history = nav_history;
12617 });
12618 }
12619 })
12620 });
12621 }
12622
12623 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12624 let snapshot = self.buffer.read(cx).read(cx);
12625 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12626 Some(
12627 ranges
12628 .iter()
12629 .map(move |range| {
12630 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12631 })
12632 .collect(),
12633 )
12634 }
12635
12636 fn selection_replacement_ranges(
12637 &self,
12638 range: Range<OffsetUtf16>,
12639 cx: &mut AppContext,
12640 ) -> Vec<Range<OffsetUtf16>> {
12641 let selections = self.selections.all::<OffsetUtf16>(cx);
12642 let newest_selection = selections
12643 .iter()
12644 .max_by_key(|selection| selection.id)
12645 .unwrap();
12646 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12647 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12648 let snapshot = self.buffer.read(cx).read(cx);
12649 selections
12650 .into_iter()
12651 .map(|mut selection| {
12652 selection.start.0 =
12653 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12654 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12655 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12656 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12657 })
12658 .collect()
12659 }
12660
12661 fn report_editor_event(
12662 &self,
12663 event_type: &'static str,
12664 file_extension: Option<String>,
12665 cx: &AppContext,
12666 ) {
12667 if cfg!(any(test, feature = "test-support")) {
12668 return;
12669 }
12670
12671 let Some(project) = &self.project else { return };
12672
12673 // If None, we are in a file without an extension
12674 let file = self
12675 .buffer
12676 .read(cx)
12677 .as_singleton()
12678 .and_then(|b| b.read(cx).file());
12679 let file_extension = file_extension.or(file
12680 .as_ref()
12681 .and_then(|file| Path::new(file.file_name(cx)).extension())
12682 .and_then(|e| e.to_str())
12683 .map(|a| a.to_string()));
12684
12685 let vim_mode = cx
12686 .global::<SettingsStore>()
12687 .raw_user_settings()
12688 .get("vim_mode")
12689 == Some(&serde_json::Value::Bool(true));
12690
12691 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12692 == language::language_settings::InlineCompletionProvider::Copilot;
12693 let copilot_enabled_for_language = self
12694 .buffer
12695 .read(cx)
12696 .settings_at(0, cx)
12697 .show_inline_completions;
12698
12699 let project = project.read(cx);
12700 telemetry::event!(
12701 event_type,
12702 file_extension,
12703 vim_mode,
12704 copilot_enabled,
12705 copilot_enabled_for_language,
12706 is_via_ssh = project.is_via_ssh(),
12707 );
12708 }
12709
12710 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12711 /// with each line being an array of {text, highlight} objects.
12712 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12713 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12714 return;
12715 };
12716
12717 #[derive(Serialize)]
12718 struct Chunk<'a> {
12719 text: String,
12720 highlight: Option<&'a str>,
12721 }
12722
12723 let snapshot = buffer.read(cx).snapshot();
12724 let range = self
12725 .selected_text_range(false, cx)
12726 .and_then(|selection| {
12727 if selection.range.is_empty() {
12728 None
12729 } else {
12730 Some(selection.range)
12731 }
12732 })
12733 .unwrap_or_else(|| 0..snapshot.len());
12734
12735 let chunks = snapshot.chunks(range, true);
12736 let mut lines = Vec::new();
12737 let mut line: VecDeque<Chunk> = VecDeque::new();
12738
12739 let Some(style) = self.style.as_ref() else {
12740 return;
12741 };
12742
12743 for chunk in chunks {
12744 let highlight = chunk
12745 .syntax_highlight_id
12746 .and_then(|id| id.name(&style.syntax));
12747 let mut chunk_lines = chunk.text.split('\n').peekable();
12748 while let Some(text) = chunk_lines.next() {
12749 let mut merged_with_last_token = false;
12750 if let Some(last_token) = line.back_mut() {
12751 if last_token.highlight == highlight {
12752 last_token.text.push_str(text);
12753 merged_with_last_token = true;
12754 }
12755 }
12756
12757 if !merged_with_last_token {
12758 line.push_back(Chunk {
12759 text: text.into(),
12760 highlight,
12761 });
12762 }
12763
12764 if chunk_lines.peek().is_some() {
12765 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12766 line.pop_front();
12767 }
12768 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12769 line.pop_back();
12770 }
12771
12772 lines.push(mem::take(&mut line));
12773 }
12774 }
12775 }
12776
12777 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12778 return;
12779 };
12780 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12781 }
12782
12783 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12784 self.request_autoscroll(Autoscroll::newest(), cx);
12785 let position = self.selections.newest_display(cx).start;
12786 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12787 }
12788
12789 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12790 &self.inlay_hint_cache
12791 }
12792
12793 pub fn replay_insert_event(
12794 &mut self,
12795 text: &str,
12796 relative_utf16_range: Option<Range<isize>>,
12797 cx: &mut ViewContext<Self>,
12798 ) {
12799 if !self.input_enabled {
12800 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12801 return;
12802 }
12803 if let Some(relative_utf16_range) = relative_utf16_range {
12804 let selections = self.selections.all::<OffsetUtf16>(cx);
12805 self.change_selections(None, cx, |s| {
12806 let new_ranges = selections.into_iter().map(|range| {
12807 let start = OffsetUtf16(
12808 range
12809 .head()
12810 .0
12811 .saturating_add_signed(relative_utf16_range.start),
12812 );
12813 let end = OffsetUtf16(
12814 range
12815 .head()
12816 .0
12817 .saturating_add_signed(relative_utf16_range.end),
12818 );
12819 start..end
12820 });
12821 s.select_ranges(new_ranges);
12822 });
12823 }
12824
12825 self.handle_input(text, cx);
12826 }
12827
12828 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12829 let Some(provider) = self.semantics_provider.as_ref() else {
12830 return false;
12831 };
12832
12833 let mut supports = false;
12834 self.buffer().read(cx).for_each_buffer(|buffer| {
12835 supports |= provider.supports_inlay_hints(buffer, cx);
12836 });
12837 supports
12838 }
12839
12840 pub fn focus(&self, cx: &mut WindowContext) {
12841 cx.focus(&self.focus_handle)
12842 }
12843
12844 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12845 self.focus_handle.is_focused(cx)
12846 }
12847
12848 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12849 cx.emit(EditorEvent::Focused);
12850
12851 if let Some(descendant) = self
12852 .last_focused_descendant
12853 .take()
12854 .and_then(|descendant| descendant.upgrade())
12855 {
12856 cx.focus(&descendant);
12857 } else {
12858 if let Some(blame) = self.blame.as_ref() {
12859 blame.update(cx, GitBlame::focus)
12860 }
12861
12862 self.blink_manager.update(cx, BlinkManager::enable);
12863 self.show_cursor_names(cx);
12864 self.buffer.update(cx, |buffer, cx| {
12865 buffer.finalize_last_transaction(cx);
12866 if self.leader_peer_id.is_none() {
12867 buffer.set_active_selections(
12868 &self.selections.disjoint_anchors(),
12869 self.selections.line_mode,
12870 self.cursor_shape,
12871 cx,
12872 );
12873 }
12874 });
12875 }
12876 }
12877
12878 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12879 cx.emit(EditorEvent::FocusedIn)
12880 }
12881
12882 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12883 if event.blurred != self.focus_handle {
12884 self.last_focused_descendant = Some(event.blurred);
12885 }
12886 }
12887
12888 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12889 self.blink_manager.update(cx, BlinkManager::disable);
12890 self.buffer
12891 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12892
12893 if let Some(blame) = self.blame.as_ref() {
12894 blame.update(cx, GitBlame::blur)
12895 }
12896 if !self.hover_state.focused(cx) {
12897 hide_hover(self, cx);
12898 }
12899
12900 self.hide_context_menu(cx);
12901 cx.emit(EditorEvent::Blurred);
12902 cx.notify();
12903 }
12904
12905 pub fn register_action<A: Action>(
12906 &mut self,
12907 listener: impl Fn(&A, &mut WindowContext) + 'static,
12908 ) -> Subscription {
12909 let id = self.next_editor_action_id.post_inc();
12910 let listener = Arc::new(listener);
12911 self.editor_actions.borrow_mut().insert(
12912 id,
12913 Box::new(move |cx| {
12914 let cx = cx.window_context();
12915 let listener = listener.clone();
12916 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12917 let action = action.downcast_ref().unwrap();
12918 if phase == DispatchPhase::Bubble {
12919 listener(action, cx)
12920 }
12921 })
12922 }),
12923 );
12924
12925 let editor_actions = self.editor_actions.clone();
12926 Subscription::new(move || {
12927 editor_actions.borrow_mut().remove(&id);
12928 })
12929 }
12930
12931 pub fn file_header_size(&self) -> u32 {
12932 FILE_HEADER_HEIGHT
12933 }
12934
12935 pub fn revert(
12936 &mut self,
12937 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12938 cx: &mut ViewContext<Self>,
12939 ) {
12940 self.buffer().update(cx, |multi_buffer, cx| {
12941 for (buffer_id, changes) in revert_changes {
12942 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12943 buffer.update(cx, |buffer, cx| {
12944 buffer.edit(
12945 changes.into_iter().map(|(range, text)| {
12946 (range, text.to_string().map(Arc::<str>::from))
12947 }),
12948 None,
12949 cx,
12950 );
12951 });
12952 }
12953 }
12954 });
12955 self.change_selections(None, cx, |selections| selections.refresh());
12956 }
12957
12958 pub fn to_pixel_point(
12959 &mut self,
12960 source: multi_buffer::Anchor,
12961 editor_snapshot: &EditorSnapshot,
12962 cx: &mut ViewContext<Self>,
12963 ) -> Option<gpui::Point<Pixels>> {
12964 let source_point = source.to_display_point(editor_snapshot);
12965 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12966 }
12967
12968 pub fn display_to_pixel_point(
12969 &self,
12970 source: DisplayPoint,
12971 editor_snapshot: &EditorSnapshot,
12972 cx: &WindowContext,
12973 ) -> Option<gpui::Point<Pixels>> {
12974 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12975 let text_layout_details = self.text_layout_details(cx);
12976 let scroll_top = text_layout_details
12977 .scroll_anchor
12978 .scroll_position(editor_snapshot)
12979 .y;
12980
12981 if source.row().as_f32() < scroll_top.floor() {
12982 return None;
12983 }
12984 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12985 let source_y = line_height * (source.row().as_f32() - scroll_top);
12986 Some(gpui::Point::new(source_x, source_y))
12987 }
12988
12989 pub fn has_active_completions_menu(&self) -> bool {
12990 self.context_menu.borrow().as_ref().map_or(false, |menu| {
12991 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
12992 })
12993 }
12994
12995 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12996 self.addons
12997 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12998 }
12999
13000 pub fn unregister_addon<T: Addon>(&mut self) {
13001 self.addons.remove(&std::any::TypeId::of::<T>());
13002 }
13003
13004 pub fn addon<T: Addon>(&self) -> Option<&T> {
13005 let type_id = std::any::TypeId::of::<T>();
13006 self.addons
13007 .get(&type_id)
13008 .and_then(|item| item.to_any().downcast_ref::<T>())
13009 }
13010
13011 pub fn add_change_set(
13012 &mut self,
13013 change_set: Model<BufferChangeSet>,
13014 cx: &mut ViewContext<Self>,
13015 ) {
13016 self.diff_map.add_change_set(change_set, cx);
13017 }
13018
13019 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
13020 let text_layout_details = self.text_layout_details(cx);
13021 let style = &text_layout_details.editor_style;
13022 let font_id = cx.text_system().resolve_font(&style.text.font());
13023 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13024 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13025
13026 let em_width = cx
13027 .text_system()
13028 .typographic_bounds(font_id, font_size, 'm')
13029 .unwrap()
13030 .size
13031 .width;
13032
13033 gpui::Point::new(em_width, line_height)
13034 }
13035}
13036
13037fn get_unstaged_changes_for_buffers(
13038 project: &Model<Project>,
13039 buffers: impl IntoIterator<Item = Model<Buffer>>,
13040 cx: &mut ViewContext<Editor>,
13041) {
13042 let mut tasks = Vec::new();
13043 project.update(cx, |project, cx| {
13044 for buffer in buffers {
13045 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
13046 }
13047 });
13048 cx.spawn(|this, mut cx| async move {
13049 let change_sets = futures::future::join_all(tasks).await;
13050 this.update(&mut cx, |this, cx| {
13051 for change_set in change_sets {
13052 if let Some(change_set) = change_set.log_err() {
13053 this.diff_map.add_change_set(change_set, cx);
13054 }
13055 }
13056 })
13057 .ok();
13058 })
13059 .detach();
13060}
13061
13062fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13063 let tab_size = tab_size.get() as usize;
13064 let mut width = offset;
13065
13066 for ch in text.chars() {
13067 width += if ch == '\t' {
13068 tab_size - (width % tab_size)
13069 } else {
13070 1
13071 };
13072 }
13073
13074 width - offset
13075}
13076
13077#[cfg(test)]
13078mod tests {
13079 use super::*;
13080
13081 #[test]
13082 fn test_string_size_with_expanded_tabs() {
13083 let nz = |val| NonZeroU32::new(val).unwrap();
13084 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13085 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13086 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13087 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13088 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13089 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13090 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13091 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13092 }
13093}
13094
13095/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13096struct WordBreakingTokenizer<'a> {
13097 input: &'a str,
13098}
13099
13100impl<'a> WordBreakingTokenizer<'a> {
13101 fn new(input: &'a str) -> Self {
13102 Self { input }
13103 }
13104}
13105
13106fn is_char_ideographic(ch: char) -> bool {
13107 use unicode_script::Script::*;
13108 use unicode_script::UnicodeScript;
13109 matches!(ch.script(), Han | Tangut | Yi)
13110}
13111
13112fn is_grapheme_ideographic(text: &str) -> bool {
13113 text.chars().any(is_char_ideographic)
13114}
13115
13116fn is_grapheme_whitespace(text: &str) -> bool {
13117 text.chars().any(|x| x.is_whitespace())
13118}
13119
13120fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13121 text.chars().next().map_or(false, |ch| {
13122 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13123 })
13124}
13125
13126#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13127struct WordBreakToken<'a> {
13128 token: &'a str,
13129 grapheme_len: usize,
13130 is_whitespace: bool,
13131}
13132
13133impl<'a> Iterator for WordBreakingTokenizer<'a> {
13134 /// Yields a span, the count of graphemes in the token, and whether it was
13135 /// whitespace. Note that it also breaks at word boundaries.
13136 type Item = WordBreakToken<'a>;
13137
13138 fn next(&mut self) -> Option<Self::Item> {
13139 use unicode_segmentation::UnicodeSegmentation;
13140 if self.input.is_empty() {
13141 return None;
13142 }
13143
13144 let mut iter = self.input.graphemes(true).peekable();
13145 let mut offset = 0;
13146 let mut graphemes = 0;
13147 if let Some(first_grapheme) = iter.next() {
13148 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13149 offset += first_grapheme.len();
13150 graphemes += 1;
13151 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13152 if let Some(grapheme) = iter.peek().copied() {
13153 if should_stay_with_preceding_ideograph(grapheme) {
13154 offset += grapheme.len();
13155 graphemes += 1;
13156 }
13157 }
13158 } else {
13159 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13160 let mut next_word_bound = words.peek().copied();
13161 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13162 next_word_bound = words.next();
13163 }
13164 while let Some(grapheme) = iter.peek().copied() {
13165 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13166 break;
13167 };
13168 if is_grapheme_whitespace(grapheme) != is_whitespace {
13169 break;
13170 };
13171 offset += grapheme.len();
13172 graphemes += 1;
13173 iter.next();
13174 }
13175 }
13176 let token = &self.input[..offset];
13177 self.input = &self.input[offset..];
13178 if is_whitespace {
13179 Some(WordBreakToken {
13180 token: " ",
13181 grapheme_len: 1,
13182 is_whitespace: true,
13183 })
13184 } else {
13185 Some(WordBreakToken {
13186 token,
13187 grapheme_len: graphemes,
13188 is_whitespace: false,
13189 })
13190 }
13191 } else {
13192 None
13193 }
13194 }
13195}
13196
13197#[test]
13198fn test_word_breaking_tokenizer() {
13199 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13200 ("", &[]),
13201 (" ", &[(" ", 1, true)]),
13202 ("Ʒ", &[("Ʒ", 1, false)]),
13203 ("Ǽ", &[("Ǽ", 1, false)]),
13204 ("⋑", &[("⋑", 1, false)]),
13205 ("⋑⋑", &[("⋑⋑", 2, false)]),
13206 (
13207 "原理，进而",
13208 &[
13209 ("原", 1, false),
13210 ("理，", 2, false),
13211 ("进", 1, false),
13212 ("而", 1, false),
13213 ],
13214 ),
13215 (
13216 "hello world",
13217 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13218 ),
13219 (
13220 "hello, world",
13221 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13222 ),
13223 (
13224 " hello world",
13225 &[
13226 (" ", 1, true),
13227 ("hello", 5, false),
13228 (" ", 1, true),
13229 ("world", 5, false),
13230 ],
13231 ),
13232 (
13233 "这是什么 \n 钢笔",
13234 &[
13235 ("这", 1, false),
13236 ("是", 1, false),
13237 ("什", 1, false),
13238 ("么", 1, false),
13239 (" ", 1, true),
13240 ("钢", 1, false),
13241 ("笔", 1, false),
13242 ],
13243 ),
13244 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13245 ];
13246
13247 for (input, result) in tests {
13248 assert_eq!(
13249 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13250 result
13251 .iter()
13252 .copied()
13253 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13254 token,
13255 grapheme_len,
13256 is_whitespace,
13257 })
13258 .collect::<Vec<_>>()
13259 );
13260 }
13261}
13262
13263fn wrap_with_prefix(
13264 line_prefix: String,
13265 unwrapped_text: String,
13266 wrap_column: usize,
13267 tab_size: NonZeroU32,
13268) -> String {
13269 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13270 let mut wrapped_text = String::new();
13271 let mut current_line = line_prefix.clone();
13272
13273 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13274 let mut current_line_len = line_prefix_len;
13275 for WordBreakToken {
13276 token,
13277 grapheme_len,
13278 is_whitespace,
13279 } in tokenizer
13280 {
13281 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13282 wrapped_text.push_str(current_line.trim_end());
13283 wrapped_text.push('\n');
13284 current_line.truncate(line_prefix.len());
13285 current_line_len = line_prefix_len;
13286 if !is_whitespace {
13287 current_line.push_str(token);
13288 current_line_len += grapheme_len;
13289 }
13290 } else if !is_whitespace {
13291 current_line.push_str(token);
13292 current_line_len += grapheme_len;
13293 } else if current_line_len != line_prefix_len {
13294 current_line.push(' ');
13295 current_line_len += 1;
13296 }
13297 }
13298
13299 if !current_line.is_empty() {
13300 wrapped_text.push_str(¤t_line);
13301 }
13302 wrapped_text
13303}
13304
13305#[test]
13306fn test_wrap_with_prefix() {
13307 assert_eq!(
13308 wrap_with_prefix(
13309 "# ".to_string(),
13310 "abcdefg".to_string(),
13311 4,
13312 NonZeroU32::new(4).unwrap()
13313 ),
13314 "# abcdefg"
13315 );
13316 assert_eq!(
13317 wrap_with_prefix(
13318 "".to_string(),
13319 "\thello world".to_string(),
13320 8,
13321 NonZeroU32::new(4).unwrap()
13322 ),
13323 "hello\nworld"
13324 );
13325 assert_eq!(
13326 wrap_with_prefix(
13327 "// ".to_string(),
13328 "xx \nyy zz aa bb cc".to_string(),
13329 12,
13330 NonZeroU32::new(4).unwrap()
13331 ),
13332 "// xx yy zz\n// aa bb cc"
13333 );
13334 assert_eq!(
13335 wrap_with_prefix(
13336 String::new(),
13337 "这是什么 \n 钢笔".to_string(),
13338 3,
13339 NonZeroU32::new(4).unwrap()
13340 ),
13341 "这是什\n么 钢\n笔"
13342 );
13343}
13344
13345fn hunks_for_selections(
13346 snapshot: &EditorSnapshot,
13347 selections: &[Selection<Point>],
13348) -> Vec<MultiBufferDiffHunk> {
13349 hunks_for_ranges(
13350 selections.iter().map(|selection| selection.range()),
13351 snapshot,
13352 )
13353}
13354
13355pub fn hunks_for_ranges(
13356 ranges: impl Iterator<Item = Range<Point>>,
13357 snapshot: &EditorSnapshot,
13358) -> Vec<MultiBufferDiffHunk> {
13359 let mut hunks = Vec::new();
13360 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13361 HashMap::default();
13362 for query_range in ranges {
13363 let query_rows =
13364 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13365 for hunk in snapshot.diff_map.diff_hunks_in_range(
13366 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13367 &snapshot.buffer_snapshot,
13368 ) {
13369 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13370 // when the caret is just above or just below the deleted hunk.
13371 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13372 let related_to_selection = if allow_adjacent {
13373 hunk.row_range.overlaps(&query_rows)
13374 || hunk.row_range.start == query_rows.end
13375 || hunk.row_range.end == query_rows.start
13376 } else {
13377 hunk.row_range.overlaps(&query_rows)
13378 };
13379 if related_to_selection {
13380 if !processed_buffer_rows
13381 .entry(hunk.buffer_id)
13382 .or_default()
13383 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13384 {
13385 continue;
13386 }
13387 hunks.push(hunk);
13388 }
13389 }
13390 }
13391
13392 hunks
13393}
13394
13395pub trait CollaborationHub {
13396 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13397 fn user_participant_indices<'a>(
13398 &self,
13399 cx: &'a AppContext,
13400 ) -> &'a HashMap<u64, ParticipantIndex>;
13401 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13402}
13403
13404impl CollaborationHub for Model<Project> {
13405 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13406 self.read(cx).collaborators()
13407 }
13408
13409 fn user_participant_indices<'a>(
13410 &self,
13411 cx: &'a AppContext,
13412 ) -> &'a HashMap<u64, ParticipantIndex> {
13413 self.read(cx).user_store().read(cx).participant_indices()
13414 }
13415
13416 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13417 let this = self.read(cx);
13418 let user_ids = this.collaborators().values().map(|c| c.user_id);
13419 this.user_store().read_with(cx, |user_store, cx| {
13420 user_store.participant_names(user_ids, cx)
13421 })
13422 }
13423}
13424
13425pub trait SemanticsProvider {
13426 fn hover(
13427 &self,
13428 buffer: &Model<Buffer>,
13429 position: text::Anchor,
13430 cx: &mut AppContext,
13431 ) -> Option<Task<Vec<project::Hover>>>;
13432
13433 fn inlay_hints(
13434 &self,
13435 buffer_handle: Model<Buffer>,
13436 range: Range<text::Anchor>,
13437 cx: &mut AppContext,
13438 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13439
13440 fn resolve_inlay_hint(
13441 &self,
13442 hint: InlayHint,
13443 buffer_handle: Model<Buffer>,
13444 server_id: LanguageServerId,
13445 cx: &mut AppContext,
13446 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13447
13448 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13449
13450 fn document_highlights(
13451 &self,
13452 buffer: &Model<Buffer>,
13453 position: text::Anchor,
13454 cx: &mut AppContext,
13455 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13456
13457 fn definitions(
13458 &self,
13459 buffer: &Model<Buffer>,
13460 position: text::Anchor,
13461 kind: GotoDefinitionKind,
13462 cx: &mut AppContext,
13463 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13464
13465 fn range_for_rename(
13466 &self,
13467 buffer: &Model<Buffer>,
13468 position: text::Anchor,
13469 cx: &mut AppContext,
13470 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13471
13472 fn perform_rename(
13473 &self,
13474 buffer: &Model<Buffer>,
13475 position: text::Anchor,
13476 new_name: String,
13477 cx: &mut AppContext,
13478 ) -> Option<Task<Result<ProjectTransaction>>>;
13479}
13480
13481pub trait CompletionProvider {
13482 fn completions(
13483 &self,
13484 buffer: &Model<Buffer>,
13485 buffer_position: text::Anchor,
13486 trigger: CompletionContext,
13487 cx: &mut ViewContext<Editor>,
13488 ) -> Task<Result<Vec<Completion>>>;
13489
13490 fn resolve_completions(
13491 &self,
13492 buffer: Model<Buffer>,
13493 completion_indices: Vec<usize>,
13494 completions: Rc<RefCell<Box<[Completion]>>>,
13495 cx: &mut ViewContext<Editor>,
13496 ) -> Task<Result<bool>>;
13497
13498 fn apply_additional_edits_for_completion(
13499 &self,
13500 _buffer: Model<Buffer>,
13501 _completions: Rc<RefCell<Box<[Completion]>>>,
13502 _completion_index: usize,
13503 _push_to_history: bool,
13504 _cx: &mut ViewContext<Editor>,
13505 ) -> Task<Result<Option<language::Transaction>>> {
13506 Task::ready(Ok(None))
13507 }
13508
13509 fn is_completion_trigger(
13510 &self,
13511 buffer: &Model<Buffer>,
13512 position: language::Anchor,
13513 text: &str,
13514 trigger_in_words: bool,
13515 cx: &mut ViewContext<Editor>,
13516 ) -> bool;
13517
13518 fn sort_completions(&self) -> bool {
13519 true
13520 }
13521}
13522
13523pub trait CodeActionProvider {
13524 fn code_actions(
13525 &self,
13526 buffer: &Model<Buffer>,
13527 range: Range<text::Anchor>,
13528 cx: &mut WindowContext,
13529 ) -> Task<Result<Vec<CodeAction>>>;
13530
13531 fn apply_code_action(
13532 &self,
13533 buffer_handle: Model<Buffer>,
13534 action: CodeAction,
13535 excerpt_id: ExcerptId,
13536 push_to_history: bool,
13537 cx: &mut WindowContext,
13538 ) -> Task<Result<ProjectTransaction>>;
13539}
13540
13541impl CodeActionProvider for Model<Project> {
13542 fn code_actions(
13543 &self,
13544 buffer: &Model<Buffer>,
13545 range: Range<text::Anchor>,
13546 cx: &mut WindowContext,
13547 ) -> Task<Result<Vec<CodeAction>>> {
13548 self.update(cx, |project, cx| {
13549 project.code_actions(buffer, range, None, cx)
13550 })
13551 }
13552
13553 fn apply_code_action(
13554 &self,
13555 buffer_handle: Model<Buffer>,
13556 action: CodeAction,
13557 _excerpt_id: ExcerptId,
13558 push_to_history: bool,
13559 cx: &mut WindowContext,
13560 ) -> Task<Result<ProjectTransaction>> {
13561 self.update(cx, |project, cx| {
13562 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13563 })
13564 }
13565}
13566
13567fn snippet_completions(
13568 project: &Project,
13569 buffer: &Model<Buffer>,
13570 buffer_position: text::Anchor,
13571 cx: &mut AppContext,
13572) -> Task<Result<Vec<Completion>>> {
13573 let language = buffer.read(cx).language_at(buffer_position);
13574 let language_name = language.as_ref().map(|language| language.lsp_id());
13575 let snippet_store = project.snippets().read(cx);
13576 let snippets = snippet_store.snippets_for(language_name, cx);
13577
13578 if snippets.is_empty() {
13579 return Task::ready(Ok(vec![]));
13580 }
13581 let snapshot = buffer.read(cx).text_snapshot();
13582 let chars: String = snapshot
13583 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13584 .collect();
13585
13586 let scope = language.map(|language| language.default_scope());
13587 let executor = cx.background_executor().clone();
13588
13589 cx.background_executor().spawn(async move {
13590 let classifier = CharClassifier::new(scope).for_completion(true);
13591 let mut last_word = chars
13592 .chars()
13593 .take_while(|c| classifier.is_word(*c))
13594 .collect::<String>();
13595 last_word = last_word.chars().rev().collect();
13596
13597 if last_word.is_empty() {
13598 return Ok(vec![]);
13599 }
13600
13601 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13602 let to_lsp = |point: &text::Anchor| {
13603 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13604 point_to_lsp(end)
13605 };
13606 let lsp_end = to_lsp(&buffer_position);
13607
13608 let candidates = snippets
13609 .iter()
13610 .enumerate()
13611 .flat_map(|(ix, snippet)| {
13612 snippet
13613 .prefix
13614 .iter()
13615 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13616 })
13617 .collect::<Vec<StringMatchCandidate>>();
13618
13619 let mut matches = fuzzy::match_strings(
13620 &candidates,
13621 &last_word,
13622 last_word.chars().any(|c| c.is_uppercase()),
13623 100,
13624 &Default::default(),
13625 executor,
13626 )
13627 .await;
13628
13629 // Remove all candidates where the query's start does not match the start of any word in the candidate
13630 if let Some(query_start) = last_word.chars().next() {
13631 matches.retain(|string_match| {
13632 split_words(&string_match.string).any(|word| {
13633 // Check that the first codepoint of the word as lowercase matches the first
13634 // codepoint of the query as lowercase
13635 word.chars()
13636 .flat_map(|codepoint| codepoint.to_lowercase())
13637 .zip(query_start.to_lowercase())
13638 .all(|(word_cp, query_cp)| word_cp == query_cp)
13639 })
13640 });
13641 }
13642
13643 let matched_strings = matches
13644 .into_iter()
13645 .map(|m| m.string)
13646 .collect::<HashSet<_>>();
13647
13648 let result: Vec<Completion> = snippets
13649 .into_iter()
13650 .filter_map(|snippet| {
13651 let matching_prefix = snippet
13652 .prefix
13653 .iter()
13654 .find(|prefix| matched_strings.contains(*prefix))?;
13655 let start = as_offset - last_word.len();
13656 let start = snapshot.anchor_before(start);
13657 let range = start..buffer_position;
13658 let lsp_start = to_lsp(&start);
13659 let lsp_range = lsp::Range {
13660 start: lsp_start,
13661 end: lsp_end,
13662 };
13663 Some(Completion {
13664 old_range: range,
13665 new_text: snippet.body.clone(),
13666 resolved: false,
13667 label: CodeLabel {
13668 text: matching_prefix.clone(),
13669 runs: vec![],
13670 filter_range: 0..matching_prefix.len(),
13671 },
13672 server_id: LanguageServerId(usize::MAX),
13673 documentation: snippet.description.clone().map(Documentation::SingleLine),
13674 lsp_completion: lsp::CompletionItem {
13675 label: snippet.prefix.first().unwrap().clone(),
13676 kind: Some(CompletionItemKind::SNIPPET),
13677 label_details: snippet.description.as_ref().map(|description| {
13678 lsp::CompletionItemLabelDetails {
13679 detail: Some(description.clone()),
13680 description: None,
13681 }
13682 }),
13683 insert_text_format: Some(InsertTextFormat::SNIPPET),
13684 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13685 lsp::InsertReplaceEdit {
13686 new_text: snippet.body.clone(),
13687 insert: lsp_range,
13688 replace: lsp_range,
13689 },
13690 )),
13691 filter_text: Some(snippet.body.clone()),
13692 sort_text: Some(char::MAX.to_string()),
13693 ..Default::default()
13694 },
13695 confirm: None,
13696 })
13697 })
13698 .collect();
13699
13700 Ok(result)
13701 })
13702}
13703
13704impl CompletionProvider for Model<Project> {
13705 fn completions(
13706 &self,
13707 buffer: &Model<Buffer>,
13708 buffer_position: text::Anchor,
13709 options: CompletionContext,
13710 cx: &mut ViewContext<Editor>,
13711 ) -> Task<Result<Vec<Completion>>> {
13712 self.update(cx, |project, cx| {
13713 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13714 let project_completions = project.completions(buffer, buffer_position, options, cx);
13715 cx.background_executor().spawn(async move {
13716 let mut completions = project_completions.await?;
13717 let snippets_completions = snippets.await?;
13718 completions.extend(snippets_completions);
13719 Ok(completions)
13720 })
13721 })
13722 }
13723
13724 fn resolve_completions(
13725 &self,
13726 buffer: Model<Buffer>,
13727 completion_indices: Vec<usize>,
13728 completions: Rc<RefCell<Box<[Completion]>>>,
13729 cx: &mut ViewContext<Editor>,
13730 ) -> Task<Result<bool>> {
13731 self.update(cx, |project, cx| {
13732 project.lsp_store().update(cx, |lsp_store, cx| {
13733 lsp_store.resolve_completions(buffer, completion_indices, completions, cx)
13734 })
13735 })
13736 }
13737
13738 fn apply_additional_edits_for_completion(
13739 &self,
13740 buffer: Model<Buffer>,
13741 completions: Rc<RefCell<Box<[Completion]>>>,
13742 completion_index: usize,
13743 push_to_history: bool,
13744 cx: &mut ViewContext<Editor>,
13745 ) -> Task<Result<Option<language::Transaction>>> {
13746 self.update(cx, |project, cx| {
13747 project.lsp_store().update(cx, |lsp_store, cx| {
13748 lsp_store.apply_additional_edits_for_completion(
13749 buffer,
13750 completions,
13751 completion_index,
13752 push_to_history,
13753 cx,
13754 )
13755 })
13756 })
13757 }
13758
13759 fn is_completion_trigger(
13760 &self,
13761 buffer: &Model<Buffer>,
13762 position: language::Anchor,
13763 text: &str,
13764 trigger_in_words: bool,
13765 cx: &mut ViewContext<Editor>,
13766 ) -> bool {
13767 let mut chars = text.chars();
13768 let char = if let Some(char) = chars.next() {
13769 char
13770 } else {
13771 return false;
13772 };
13773 if chars.next().is_some() {
13774 return false;
13775 }
13776
13777 let buffer = buffer.read(cx);
13778 let snapshot = buffer.snapshot();
13779 if !snapshot.settings_at(position, cx).show_completions_on_input {
13780 return false;
13781 }
13782 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13783 if trigger_in_words && classifier.is_word(char) {
13784 return true;
13785 }
13786
13787 buffer.completion_triggers().contains(text)
13788 }
13789}
13790
13791impl SemanticsProvider for Model<Project> {
13792 fn hover(
13793 &self,
13794 buffer: &Model<Buffer>,
13795 position: text::Anchor,
13796 cx: &mut AppContext,
13797 ) -> Option<Task<Vec<project::Hover>>> {
13798 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13799 }
13800
13801 fn document_highlights(
13802 &self,
13803 buffer: &Model<Buffer>,
13804 position: text::Anchor,
13805 cx: &mut AppContext,
13806 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13807 Some(self.update(cx, |project, cx| {
13808 project.document_highlights(buffer, position, cx)
13809 }))
13810 }
13811
13812 fn definitions(
13813 &self,
13814 buffer: &Model<Buffer>,
13815 position: text::Anchor,
13816 kind: GotoDefinitionKind,
13817 cx: &mut AppContext,
13818 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13819 Some(self.update(cx, |project, cx| match kind {
13820 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13821 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13822 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13823 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13824 }))
13825 }
13826
13827 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13828 // TODO: make this work for remote projects
13829 self.read(cx)
13830 .language_servers_for_local_buffer(buffer.read(cx), cx)
13831 .any(
13832 |(_, server)| match server.capabilities().inlay_hint_provider {
13833 Some(lsp::OneOf::Left(enabled)) => enabled,
13834 Some(lsp::OneOf::Right(_)) => true,
13835 None => false,
13836 },
13837 )
13838 }
13839
13840 fn inlay_hints(
13841 &self,
13842 buffer_handle: Model<Buffer>,
13843 range: Range<text::Anchor>,
13844 cx: &mut AppContext,
13845 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13846 Some(self.update(cx, |project, cx| {
13847 project.inlay_hints(buffer_handle, range, cx)
13848 }))
13849 }
13850
13851 fn resolve_inlay_hint(
13852 &self,
13853 hint: InlayHint,
13854 buffer_handle: Model<Buffer>,
13855 server_id: LanguageServerId,
13856 cx: &mut AppContext,
13857 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13858 Some(self.update(cx, |project, cx| {
13859 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13860 }))
13861 }
13862
13863 fn range_for_rename(
13864 &self,
13865 buffer: &Model<Buffer>,
13866 position: text::Anchor,
13867 cx: &mut AppContext,
13868 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13869 Some(self.update(cx, |project, cx| {
13870 project.prepare_rename(buffer.clone(), position, cx)
13871 }))
13872 }
13873
13874 fn perform_rename(
13875 &self,
13876 buffer: &Model<Buffer>,
13877 position: text::Anchor,
13878 new_name: String,
13879 cx: &mut AppContext,
13880 ) -> Option<Task<Result<ProjectTransaction>>> {
13881 Some(self.update(cx, |project, cx| {
13882 project.perform_rename(buffer.clone(), position, new_name, cx)
13883 }))
13884 }
13885}
13886
13887fn inlay_hint_settings(
13888 location: Anchor,
13889 snapshot: &MultiBufferSnapshot,
13890 cx: &mut ViewContext<Editor>,
13891) -> InlayHintSettings {
13892 let file = snapshot.file_at(location);
13893 let language = snapshot.language_at(location).map(|l| l.name());
13894 language_settings(language, file, cx).inlay_hints
13895}
13896
13897fn consume_contiguous_rows(
13898 contiguous_row_selections: &mut Vec<Selection<Point>>,
13899 selection: &Selection<Point>,
13900 display_map: &DisplaySnapshot,
13901 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13902) -> (MultiBufferRow, MultiBufferRow) {
13903 contiguous_row_selections.push(selection.clone());
13904 let start_row = MultiBufferRow(selection.start.row);
13905 let mut end_row = ending_row(selection, display_map);
13906
13907 while let Some(next_selection) = selections.peek() {
13908 if next_selection.start.row <= end_row.0 {
13909 end_row = ending_row(next_selection, display_map);
13910 contiguous_row_selections.push(selections.next().unwrap().clone());
13911 } else {
13912 break;
13913 }
13914 }
13915 (start_row, end_row)
13916}
13917
13918fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13919 if next_selection.end.column > 0 || next_selection.is_empty() {
13920 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13921 } else {
13922 MultiBufferRow(next_selection.end.row)
13923 }
13924}
13925
13926impl EditorSnapshot {
13927 pub fn remote_selections_in_range<'a>(
13928 &'a self,
13929 range: &'a Range<Anchor>,
13930 collaboration_hub: &dyn CollaborationHub,
13931 cx: &'a AppContext,
13932 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13933 let participant_names = collaboration_hub.user_names(cx);
13934 let participant_indices = collaboration_hub.user_participant_indices(cx);
13935 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13936 let collaborators_by_replica_id = collaborators_by_peer_id
13937 .iter()
13938 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13939 .collect::<HashMap<_, _>>();
13940 self.buffer_snapshot
13941 .selections_in_range(range, false)
13942 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13943 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13944 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13945 let user_name = participant_names.get(&collaborator.user_id).cloned();
13946 Some(RemoteSelection {
13947 replica_id,
13948 selection,
13949 cursor_shape,
13950 line_mode,
13951 participant_index,
13952 peer_id: collaborator.peer_id,
13953 user_name,
13954 })
13955 })
13956 }
13957
13958 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13959 self.display_snapshot.buffer_snapshot.language_at(position)
13960 }
13961
13962 pub fn is_focused(&self) -> bool {
13963 self.is_focused
13964 }
13965
13966 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13967 self.placeholder_text.as_ref()
13968 }
13969
13970 pub fn scroll_position(&self) -> gpui::Point<f32> {
13971 self.scroll_anchor.scroll_position(&self.display_snapshot)
13972 }
13973
13974 fn gutter_dimensions(
13975 &self,
13976 font_id: FontId,
13977 font_size: Pixels,
13978 em_width: Pixels,
13979 em_advance: Pixels,
13980 max_line_number_width: Pixels,
13981 cx: &AppContext,
13982 ) -> GutterDimensions {
13983 if !self.show_gutter {
13984 return GutterDimensions::default();
13985 }
13986 let descent = cx.text_system().descent(font_id, font_size);
13987
13988 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13989 matches!(
13990 ProjectSettings::get_global(cx).git.git_gutter,
13991 Some(GitGutterSetting::TrackedFiles)
13992 )
13993 });
13994 let gutter_settings = EditorSettings::get_global(cx).gutter;
13995 let show_line_numbers = self
13996 .show_line_numbers
13997 .unwrap_or(gutter_settings.line_numbers);
13998 let line_gutter_width = if show_line_numbers {
13999 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14000 let min_width_for_number_on_gutter = em_advance * 4.0;
14001 max_line_number_width.max(min_width_for_number_on_gutter)
14002 } else {
14003 0.0.into()
14004 };
14005
14006 let show_code_actions = self
14007 .show_code_actions
14008 .unwrap_or(gutter_settings.code_actions);
14009
14010 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14011
14012 let git_blame_entries_width =
14013 self.git_blame_gutter_max_author_length
14014 .map(|max_author_length| {
14015 // Length of the author name, but also space for the commit hash,
14016 // the spacing and the timestamp.
14017 let max_char_count = max_author_length
14018 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14019 + 7 // length of commit sha
14020 + 14 // length of max relative timestamp ("60 minutes ago")
14021 + 4; // gaps and margins
14022
14023 em_advance * max_char_count
14024 });
14025
14026 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14027 left_padding += if show_code_actions || show_runnables {
14028 em_width * 3.0
14029 } else if show_git_gutter && show_line_numbers {
14030 em_width * 2.0
14031 } else if show_git_gutter || show_line_numbers {
14032 em_width
14033 } else {
14034 px(0.)
14035 };
14036
14037 let right_padding = if gutter_settings.folds && show_line_numbers {
14038 em_width * 4.0
14039 } else if gutter_settings.folds {
14040 em_width * 3.0
14041 } else if show_line_numbers {
14042 em_width
14043 } else {
14044 px(0.)
14045 };
14046
14047 GutterDimensions {
14048 left_padding,
14049 right_padding,
14050 width: line_gutter_width + left_padding + right_padding,
14051 margin: -descent,
14052 git_blame_entries_width,
14053 }
14054 }
14055
14056 pub fn render_crease_toggle(
14057 &self,
14058 buffer_row: MultiBufferRow,
14059 row_contains_cursor: bool,
14060 editor: View<Editor>,
14061 cx: &mut WindowContext,
14062 ) -> Option<AnyElement> {
14063 let folded = self.is_line_folded(buffer_row);
14064 let mut is_foldable = false;
14065
14066 if let Some(crease) = self
14067 .crease_snapshot
14068 .query_row(buffer_row, &self.buffer_snapshot)
14069 {
14070 is_foldable = true;
14071 match crease {
14072 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14073 if let Some(render_toggle) = render_toggle {
14074 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14075 if folded {
14076 editor.update(cx, |editor, cx| {
14077 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14078 });
14079 } else {
14080 editor.update(cx, |editor, cx| {
14081 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14082 });
14083 }
14084 });
14085 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14086 }
14087 }
14088 }
14089 }
14090
14091 is_foldable |= self.starts_indent(buffer_row);
14092
14093 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14094 Some(
14095 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14096 .toggle_state(folded)
14097 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14098 if folded {
14099 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14100 } else {
14101 this.fold_at(&FoldAt { buffer_row }, cx);
14102 }
14103 }))
14104 .into_any_element(),
14105 )
14106 } else {
14107 None
14108 }
14109 }
14110
14111 pub fn render_crease_trailer(
14112 &self,
14113 buffer_row: MultiBufferRow,
14114 cx: &mut WindowContext,
14115 ) -> Option<AnyElement> {
14116 let folded = self.is_line_folded(buffer_row);
14117 if let Crease::Inline { render_trailer, .. } = self
14118 .crease_snapshot
14119 .query_row(buffer_row, &self.buffer_snapshot)?
14120 {
14121 let render_trailer = render_trailer.as_ref()?;
14122 Some(render_trailer(buffer_row, folded, cx))
14123 } else {
14124 None
14125 }
14126 }
14127}
14128
14129impl Deref for EditorSnapshot {
14130 type Target = DisplaySnapshot;
14131
14132 fn deref(&self) -> &Self::Target {
14133 &self.display_snapshot
14134 }
14135}
14136
14137#[derive(Clone, Debug, PartialEq, Eq)]
14138pub enum EditorEvent {
14139 InputIgnored {
14140 text: Arc<str>,
14141 },
14142 InputHandled {
14143 utf16_range_to_replace: Option<Range<isize>>,
14144 text: Arc<str>,
14145 },
14146 ExcerptsAdded {
14147 buffer: Model<Buffer>,
14148 predecessor: ExcerptId,
14149 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14150 },
14151 ExcerptsRemoved {
14152 ids: Vec<ExcerptId>,
14153 },
14154 BufferFoldToggled {
14155 ids: Vec<ExcerptId>,
14156 folded: bool,
14157 },
14158 ExcerptsEdited {
14159 ids: Vec<ExcerptId>,
14160 },
14161 ExcerptsExpanded {
14162 ids: Vec<ExcerptId>,
14163 },
14164 BufferEdited,
14165 Edited {
14166 transaction_id: clock::Lamport,
14167 },
14168 Reparsed(BufferId),
14169 Focused,
14170 FocusedIn,
14171 Blurred,
14172 DirtyChanged,
14173 Saved,
14174 TitleChanged,
14175 DiffBaseChanged,
14176 SelectionsChanged {
14177 local: bool,
14178 },
14179 ScrollPositionChanged {
14180 local: bool,
14181 autoscroll: bool,
14182 },
14183 Closed,
14184 TransactionUndone {
14185 transaction_id: clock::Lamport,
14186 },
14187 TransactionBegun {
14188 transaction_id: clock::Lamport,
14189 },
14190 Reloaded,
14191 CursorShapeChanged,
14192}
14193
14194impl EventEmitter<EditorEvent> for Editor {}
14195
14196impl FocusableView for Editor {
14197 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14198 self.focus_handle.clone()
14199 }
14200}
14201
14202impl Render for Editor {
14203 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14204 let settings = ThemeSettings::get_global(cx);
14205
14206 let mut text_style = match self.mode {
14207 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14208 color: cx.theme().colors().editor_foreground,
14209 font_family: settings.ui_font.family.clone(),
14210 font_features: settings.ui_font.features.clone(),
14211 font_fallbacks: settings.ui_font.fallbacks.clone(),
14212 font_size: rems(0.875).into(),
14213 font_weight: settings.ui_font.weight,
14214 line_height: relative(settings.buffer_line_height.value()),
14215 ..Default::default()
14216 },
14217 EditorMode::Full => TextStyle {
14218 color: cx.theme().colors().editor_foreground,
14219 font_family: settings.buffer_font.family.clone(),
14220 font_features: settings.buffer_font.features.clone(),
14221 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14222 font_size: settings.buffer_font_size(cx).into(),
14223 font_weight: settings.buffer_font.weight,
14224 line_height: relative(settings.buffer_line_height.value()),
14225 ..Default::default()
14226 },
14227 };
14228 if let Some(text_style_refinement) = &self.text_style_refinement {
14229 text_style.refine(text_style_refinement)
14230 }
14231
14232 let background = match self.mode {
14233 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14234 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14235 EditorMode::Full => cx.theme().colors().editor_background,
14236 };
14237
14238 EditorElement::new(
14239 cx.view(),
14240 EditorStyle {
14241 background,
14242 local_player: cx.theme().players().local(),
14243 text: text_style,
14244 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14245 syntax: cx.theme().syntax().clone(),
14246 status: cx.theme().status().clone(),
14247 inlay_hints_style: make_inlay_hints_style(cx),
14248 inline_completion_styles: make_suggestion_styles(cx),
14249 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14250 },
14251 )
14252 }
14253}
14254
14255impl ViewInputHandler for Editor {
14256 fn text_for_range(
14257 &mut self,
14258 range_utf16: Range<usize>,
14259 adjusted_range: &mut Option<Range<usize>>,
14260 cx: &mut ViewContext<Self>,
14261 ) -> Option<String> {
14262 let snapshot = self.buffer.read(cx).read(cx);
14263 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14264 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14265 if (start.0..end.0) != range_utf16 {
14266 adjusted_range.replace(start.0..end.0);
14267 }
14268 Some(snapshot.text_for_range(start..end).collect())
14269 }
14270
14271 fn selected_text_range(
14272 &mut self,
14273 ignore_disabled_input: bool,
14274 cx: &mut ViewContext<Self>,
14275 ) -> Option<UTF16Selection> {
14276 // Prevent the IME menu from appearing when holding down an alphabetic key
14277 // while input is disabled.
14278 if !ignore_disabled_input && !self.input_enabled {
14279 return None;
14280 }
14281
14282 let selection = self.selections.newest::<OffsetUtf16>(cx);
14283 let range = selection.range();
14284
14285 Some(UTF16Selection {
14286 range: range.start.0..range.end.0,
14287 reversed: selection.reversed,
14288 })
14289 }
14290
14291 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14292 let snapshot = self.buffer.read(cx).read(cx);
14293 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14294 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14295 }
14296
14297 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14298 self.clear_highlights::<InputComposition>(cx);
14299 self.ime_transaction.take();
14300 }
14301
14302 fn replace_text_in_range(
14303 &mut self,
14304 range_utf16: Option<Range<usize>>,
14305 text: &str,
14306 cx: &mut ViewContext<Self>,
14307 ) {
14308 if !self.input_enabled {
14309 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14310 return;
14311 }
14312
14313 self.transact(cx, |this, cx| {
14314 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14315 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14316 Some(this.selection_replacement_ranges(range_utf16, cx))
14317 } else {
14318 this.marked_text_ranges(cx)
14319 };
14320
14321 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14322 let newest_selection_id = this.selections.newest_anchor().id;
14323 this.selections
14324 .all::<OffsetUtf16>(cx)
14325 .iter()
14326 .zip(ranges_to_replace.iter())
14327 .find_map(|(selection, range)| {
14328 if selection.id == newest_selection_id {
14329 Some(
14330 (range.start.0 as isize - selection.head().0 as isize)
14331 ..(range.end.0 as isize - selection.head().0 as isize),
14332 )
14333 } else {
14334 None
14335 }
14336 })
14337 });
14338
14339 cx.emit(EditorEvent::InputHandled {
14340 utf16_range_to_replace: range_to_replace,
14341 text: text.into(),
14342 });
14343
14344 if let Some(new_selected_ranges) = new_selected_ranges {
14345 this.change_selections(None, cx, |selections| {
14346 selections.select_ranges(new_selected_ranges)
14347 });
14348 this.backspace(&Default::default(), cx);
14349 }
14350
14351 this.handle_input(text, cx);
14352 });
14353
14354 if let Some(transaction) = self.ime_transaction {
14355 self.buffer.update(cx, |buffer, cx| {
14356 buffer.group_until_transaction(transaction, cx);
14357 });
14358 }
14359
14360 self.unmark_text(cx);
14361 }
14362
14363 fn replace_and_mark_text_in_range(
14364 &mut self,
14365 range_utf16: Option<Range<usize>>,
14366 text: &str,
14367 new_selected_range_utf16: Option<Range<usize>>,
14368 cx: &mut ViewContext<Self>,
14369 ) {
14370 if !self.input_enabled {
14371 return;
14372 }
14373
14374 let transaction = self.transact(cx, |this, cx| {
14375 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14376 let snapshot = this.buffer.read(cx).read(cx);
14377 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14378 for marked_range in &mut marked_ranges {
14379 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14380 marked_range.start.0 += relative_range_utf16.start;
14381 marked_range.start =
14382 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14383 marked_range.end =
14384 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14385 }
14386 }
14387 Some(marked_ranges)
14388 } else if let Some(range_utf16) = range_utf16 {
14389 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14390 Some(this.selection_replacement_ranges(range_utf16, cx))
14391 } else {
14392 None
14393 };
14394
14395 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14396 let newest_selection_id = this.selections.newest_anchor().id;
14397 this.selections
14398 .all::<OffsetUtf16>(cx)
14399 .iter()
14400 .zip(ranges_to_replace.iter())
14401 .find_map(|(selection, range)| {
14402 if selection.id == newest_selection_id {
14403 Some(
14404 (range.start.0 as isize - selection.head().0 as isize)
14405 ..(range.end.0 as isize - selection.head().0 as isize),
14406 )
14407 } else {
14408 None
14409 }
14410 })
14411 });
14412
14413 cx.emit(EditorEvent::InputHandled {
14414 utf16_range_to_replace: range_to_replace,
14415 text: text.into(),
14416 });
14417
14418 if let Some(ranges) = ranges_to_replace {
14419 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14420 }
14421
14422 let marked_ranges = {
14423 let snapshot = this.buffer.read(cx).read(cx);
14424 this.selections
14425 .disjoint_anchors()
14426 .iter()
14427 .map(|selection| {
14428 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14429 })
14430 .collect::<Vec<_>>()
14431 };
14432
14433 if text.is_empty() {
14434 this.unmark_text(cx);
14435 } else {
14436 this.highlight_text::<InputComposition>(
14437 marked_ranges.clone(),
14438 HighlightStyle {
14439 underline: Some(UnderlineStyle {
14440 thickness: px(1.),
14441 color: None,
14442 wavy: false,
14443 }),
14444 ..Default::default()
14445 },
14446 cx,
14447 );
14448 }
14449
14450 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14451 let use_autoclose = this.use_autoclose;
14452 let use_auto_surround = this.use_auto_surround;
14453 this.set_use_autoclose(false);
14454 this.set_use_auto_surround(false);
14455 this.handle_input(text, cx);
14456 this.set_use_autoclose(use_autoclose);
14457 this.set_use_auto_surround(use_auto_surround);
14458
14459 if let Some(new_selected_range) = new_selected_range_utf16 {
14460 let snapshot = this.buffer.read(cx).read(cx);
14461 let new_selected_ranges = marked_ranges
14462 .into_iter()
14463 .map(|marked_range| {
14464 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14465 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14466 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14467 snapshot.clip_offset_utf16(new_start, Bias::Left)
14468 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14469 })
14470 .collect::<Vec<_>>();
14471
14472 drop(snapshot);
14473 this.change_selections(None, cx, |selections| {
14474 selections.select_ranges(new_selected_ranges)
14475 });
14476 }
14477 });
14478
14479 self.ime_transaction = self.ime_transaction.or(transaction);
14480 if let Some(transaction) = self.ime_transaction {
14481 self.buffer.update(cx, |buffer, cx| {
14482 buffer.group_until_transaction(transaction, cx);
14483 });
14484 }
14485
14486 if self.text_highlights::<InputComposition>(cx).is_none() {
14487 self.ime_transaction.take();
14488 }
14489 }
14490
14491 fn bounds_for_range(
14492 &mut self,
14493 range_utf16: Range<usize>,
14494 element_bounds: gpui::Bounds<Pixels>,
14495 cx: &mut ViewContext<Self>,
14496 ) -> Option<gpui::Bounds<Pixels>> {
14497 let text_layout_details = self.text_layout_details(cx);
14498 let gpui::Point {
14499 x: em_width,
14500 y: line_height,
14501 } = self.character_size(cx);
14502
14503 let snapshot = self.snapshot(cx);
14504 let scroll_position = snapshot.scroll_position();
14505 let scroll_left = scroll_position.x * em_width;
14506
14507 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14508 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14509 + self.gutter_dimensions.width
14510 + self.gutter_dimensions.margin;
14511 let y = line_height * (start.row().as_f32() - scroll_position.y);
14512
14513 Some(Bounds {
14514 origin: element_bounds.origin + point(x, y),
14515 size: size(em_width, line_height),
14516 })
14517 }
14518}
14519
14520trait SelectionExt {
14521 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14522 fn spanned_rows(
14523 &self,
14524 include_end_if_at_line_start: bool,
14525 map: &DisplaySnapshot,
14526 ) -> Range<MultiBufferRow>;
14527}
14528
14529impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14530 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14531 let start = self
14532 .start
14533 .to_point(&map.buffer_snapshot)
14534 .to_display_point(map);
14535 let end = self
14536 .end
14537 .to_point(&map.buffer_snapshot)
14538 .to_display_point(map);
14539 if self.reversed {
14540 end..start
14541 } else {
14542 start..end
14543 }
14544 }
14545
14546 fn spanned_rows(
14547 &self,
14548 include_end_if_at_line_start: bool,
14549 map: &DisplaySnapshot,
14550 ) -> Range<MultiBufferRow> {
14551 let start = self.start.to_point(&map.buffer_snapshot);
14552 let mut end = self.end.to_point(&map.buffer_snapshot);
14553 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14554 end.row -= 1;
14555 }
14556
14557 let buffer_start = map.prev_line_boundary(start).0;
14558 let buffer_end = map.next_line_boundary(end).0;
14559 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14560 }
14561}
14562
14563impl<T: InvalidationRegion> InvalidationStack<T> {
14564 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14565 where
14566 S: Clone + ToOffset,
14567 {
14568 while let Some(region) = self.last() {
14569 let all_selections_inside_invalidation_ranges =
14570 if selections.len() == region.ranges().len() {
14571 selections
14572 .iter()
14573 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14574 .all(|(selection, invalidation_range)| {
14575 let head = selection.head().to_offset(buffer);
14576 invalidation_range.start <= head && invalidation_range.end >= head
14577 })
14578 } else {
14579 false
14580 };
14581
14582 if all_selections_inside_invalidation_ranges {
14583 break;
14584 } else {
14585 self.pop();
14586 }
14587 }
14588 }
14589}
14590
14591impl<T> Default for InvalidationStack<T> {
14592 fn default() -> Self {
14593 Self(Default::default())
14594 }
14595}
14596
14597impl<T> Deref for InvalidationStack<T> {
14598 type Target = Vec<T>;
14599
14600 fn deref(&self) -> &Self::Target {
14601 &self.0
14602 }
14603}
14604
14605impl<T> DerefMut for InvalidationStack<T> {
14606 fn deref_mut(&mut self) -> &mut Self::Target {
14607 &mut self.0
14608 }
14609}
14610
14611impl InvalidationRegion for SnippetState {
14612 fn ranges(&self) -> &[Range<Anchor>] {
14613 &self.ranges[self.active_index]
14614 }
14615}
14616
14617pub fn diagnostic_block_renderer(
14618 diagnostic: Diagnostic,
14619 max_message_rows: Option<u8>,
14620 allow_closing: bool,
14621 _is_valid: bool,
14622) -> RenderBlock {
14623 let (text_without_backticks, code_ranges) =
14624 highlight_diagnostic_message(&diagnostic, max_message_rows);
14625
14626 Arc::new(move |cx: &mut BlockContext| {
14627 let group_id: SharedString = cx.block_id.to_string().into();
14628
14629 let mut text_style = cx.text_style().clone();
14630 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14631 let theme_settings = ThemeSettings::get_global(cx);
14632 text_style.font_family = theme_settings.buffer_font.family.clone();
14633 text_style.font_style = theme_settings.buffer_font.style;
14634 text_style.font_features = theme_settings.buffer_font.features.clone();
14635 text_style.font_weight = theme_settings.buffer_font.weight;
14636
14637 let multi_line_diagnostic = diagnostic.message.contains('\n');
14638
14639 let buttons = |diagnostic: &Diagnostic| {
14640 if multi_line_diagnostic {
14641 v_flex()
14642 } else {
14643 h_flex()
14644 }
14645 .when(allow_closing, |div| {
14646 div.children(diagnostic.is_primary.then(|| {
14647 IconButton::new("close-block", IconName::XCircle)
14648 .icon_color(Color::Muted)
14649 .size(ButtonSize::Compact)
14650 .style(ButtonStyle::Transparent)
14651 .visible_on_hover(group_id.clone())
14652 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14653 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14654 }))
14655 })
14656 .child(
14657 IconButton::new("copy-block", IconName::Copy)
14658 .icon_color(Color::Muted)
14659 .size(ButtonSize::Compact)
14660 .style(ButtonStyle::Transparent)
14661 .visible_on_hover(group_id.clone())
14662 .on_click({
14663 let message = diagnostic.message.clone();
14664 move |_click, cx| {
14665 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14666 }
14667 })
14668 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14669 )
14670 };
14671
14672 let icon_size = buttons(&diagnostic)
14673 .into_any_element()
14674 .layout_as_root(AvailableSpace::min_size(), cx);
14675
14676 h_flex()
14677 .id(cx.block_id)
14678 .group(group_id.clone())
14679 .relative()
14680 .size_full()
14681 .block_mouse_down()
14682 .pl(cx.gutter_dimensions.width)
14683 .w(cx.max_width - cx.gutter_dimensions.full_width())
14684 .child(
14685 div()
14686 .flex()
14687 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14688 .flex_shrink(),
14689 )
14690 .child(buttons(&diagnostic))
14691 .child(div().flex().flex_shrink_0().child(
14692 StyledText::new(text_without_backticks.clone()).with_highlights(
14693 &text_style,
14694 code_ranges.iter().map(|range| {
14695 (
14696 range.clone(),
14697 HighlightStyle {
14698 font_weight: Some(FontWeight::BOLD),
14699 ..Default::default()
14700 },
14701 )
14702 }),
14703 ),
14704 ))
14705 .into_any_element()
14706 })
14707}
14708
14709fn inline_completion_edit_text(
14710 editor_snapshot: &EditorSnapshot,
14711 edits: &Vec<(Range<Anchor>, String)>,
14712 include_deletions: bool,
14713 cx: &WindowContext,
14714) -> InlineCompletionText {
14715 let edit_start = edits
14716 .first()
14717 .unwrap()
14718 .0
14719 .start
14720 .to_display_point(editor_snapshot);
14721
14722 let mut text = String::new();
14723 let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
14724 let mut highlights = Vec::new();
14725 for (old_range, new_text) in edits {
14726 let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
14727 text.extend(
14728 editor_snapshot
14729 .buffer_snapshot
14730 .chunks(offset..old_offset_range.start, false)
14731 .map(|chunk| chunk.text),
14732 );
14733 offset = old_offset_range.end;
14734
14735 let start = text.len();
14736 let color = if include_deletions && new_text.is_empty() {
14737 text.extend(
14738 editor_snapshot
14739 .buffer_snapshot
14740 .chunks(old_offset_range.start..offset, false)
14741 .map(|chunk| chunk.text),
14742 );
14743 cx.theme().status().deleted_background
14744 } else {
14745 text.push_str(new_text);
14746 cx.theme().status().created_background
14747 };
14748 let end = text.len();
14749
14750 highlights.push((
14751 start..end,
14752 HighlightStyle {
14753 background_color: Some(color),
14754 ..Default::default()
14755 },
14756 ));
14757 }
14758
14759 let edit_end = edits
14760 .last()
14761 .unwrap()
14762 .0
14763 .end
14764 .to_display_point(editor_snapshot);
14765 let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
14766 .to_offset(editor_snapshot, Bias::Right);
14767 text.extend(
14768 editor_snapshot
14769 .buffer_snapshot
14770 .chunks(offset..end_of_line, false)
14771 .map(|chunk| chunk.text),
14772 );
14773
14774 InlineCompletionText::Edit {
14775 text: text.into(),
14776 highlights,
14777 }
14778}
14779
14780pub fn highlight_diagnostic_message(
14781 diagnostic: &Diagnostic,
14782 mut max_message_rows: Option<u8>,
14783) -> (SharedString, Vec<Range<usize>>) {
14784 let mut text_without_backticks = String::new();
14785 let mut code_ranges = Vec::new();
14786
14787 if let Some(source) = &diagnostic.source {
14788 text_without_backticks.push_str(source);
14789 code_ranges.push(0..source.len());
14790 text_without_backticks.push_str(": ");
14791 }
14792
14793 let mut prev_offset = 0;
14794 let mut in_code_block = false;
14795 let has_row_limit = max_message_rows.is_some();
14796 let mut newline_indices = diagnostic
14797 .message
14798 .match_indices('\n')
14799 .filter(|_| has_row_limit)
14800 .map(|(ix, _)| ix)
14801 .fuse()
14802 .peekable();
14803
14804 for (quote_ix, _) in diagnostic
14805 .message
14806 .match_indices('`')
14807 .chain([(diagnostic.message.len(), "")])
14808 {
14809 let mut first_newline_ix = None;
14810 let mut last_newline_ix = None;
14811 while let Some(newline_ix) = newline_indices.peek() {
14812 if *newline_ix < quote_ix {
14813 if first_newline_ix.is_none() {
14814 first_newline_ix = Some(*newline_ix);
14815 }
14816 last_newline_ix = Some(*newline_ix);
14817
14818 if let Some(rows_left) = &mut max_message_rows {
14819 if *rows_left == 0 {
14820 break;
14821 } else {
14822 *rows_left -= 1;
14823 }
14824 }
14825 let _ = newline_indices.next();
14826 } else {
14827 break;
14828 }
14829 }
14830 let prev_len = text_without_backticks.len();
14831 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14832 text_without_backticks.push_str(new_text);
14833 if in_code_block {
14834 code_ranges.push(prev_len..text_without_backticks.len());
14835 }
14836 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14837 in_code_block = !in_code_block;
14838 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14839 text_without_backticks.push_str("...");
14840 break;
14841 }
14842 }
14843
14844 (text_without_backticks.into(), code_ranges)
14845}
14846
14847fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14848 match severity {
14849 DiagnosticSeverity::ERROR => colors.error,
14850 DiagnosticSeverity::WARNING => colors.warning,
14851 DiagnosticSeverity::INFORMATION => colors.info,
14852 DiagnosticSeverity::HINT => colors.info,
14853 _ => colors.ignored,
14854 }
14855}
14856
14857pub fn styled_runs_for_code_label<'a>(
14858 label: &'a CodeLabel,
14859 syntax_theme: &'a theme::SyntaxTheme,
14860) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14861 let fade_out = HighlightStyle {
14862 fade_out: Some(0.35),
14863 ..Default::default()
14864 };
14865
14866 let mut prev_end = label.filter_range.end;
14867 label
14868 .runs
14869 .iter()
14870 .enumerate()
14871 .flat_map(move |(ix, (range, highlight_id))| {
14872 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14873 style
14874 } else {
14875 return Default::default();
14876 };
14877 let mut muted_style = style;
14878 muted_style.highlight(fade_out);
14879
14880 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14881 if range.start >= label.filter_range.end {
14882 if range.start > prev_end {
14883 runs.push((prev_end..range.start, fade_out));
14884 }
14885 runs.push((range.clone(), muted_style));
14886 } else if range.end <= label.filter_range.end {
14887 runs.push((range.clone(), style));
14888 } else {
14889 runs.push((range.start..label.filter_range.end, style));
14890 runs.push((label.filter_range.end..range.end, muted_style));
14891 }
14892 prev_end = cmp::max(prev_end, range.end);
14893
14894 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14895 runs.push((prev_end..label.text.len(), fade_out));
14896 }
14897
14898 runs
14899 })
14900}
14901
14902pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14903 let mut prev_index = 0;
14904 let mut prev_codepoint: Option<char> = None;
14905 text.char_indices()
14906 .chain([(text.len(), '\0')])
14907 .filter_map(move |(index, codepoint)| {
14908 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14909 let is_boundary = index == text.len()
14910 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14911 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14912 if is_boundary {
14913 let chunk = &text[prev_index..index];
14914 prev_index = index;
14915 Some(chunk)
14916 } else {
14917 None
14918 }
14919 })
14920}
14921
14922pub trait RangeToAnchorExt: Sized {
14923 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14924
14925 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14926 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14927 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14928 }
14929}
14930
14931impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14932 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14933 let start_offset = self.start.to_offset(snapshot);
14934 let end_offset = self.end.to_offset(snapshot);
14935 if start_offset == end_offset {
14936 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14937 } else {
14938 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14939 }
14940 }
14941}
14942
14943pub trait RowExt {
14944 fn as_f32(&self) -> f32;
14945
14946 fn next_row(&self) -> Self;
14947
14948 fn previous_row(&self) -> Self;
14949
14950 fn minus(&self, other: Self) -> u32;
14951}
14952
14953impl RowExt for DisplayRow {
14954 fn as_f32(&self) -> f32 {
14955 self.0 as f32
14956 }
14957
14958 fn next_row(&self) -> Self {
14959 Self(self.0 + 1)
14960 }
14961
14962 fn previous_row(&self) -> Self {
14963 Self(self.0.saturating_sub(1))
14964 }
14965
14966 fn minus(&self, other: Self) -> u32 {
14967 self.0 - other.0
14968 }
14969}
14970
14971impl RowExt for MultiBufferRow {
14972 fn as_f32(&self) -> f32 {
14973 self.0 as f32
14974 }
14975
14976 fn next_row(&self) -> Self {
14977 Self(self.0 + 1)
14978 }
14979
14980 fn previous_row(&self) -> Self {
14981 Self(self.0.saturating_sub(1))
14982 }
14983
14984 fn minus(&self, other: Self) -> u32 {
14985 self.0 - other.0
14986 }
14987}
14988
14989trait RowRangeExt {
14990 type Row;
14991
14992 fn len(&self) -> usize;
14993
14994 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14995}
14996
14997impl RowRangeExt for Range<MultiBufferRow> {
14998 type Row = MultiBufferRow;
14999
15000 fn len(&self) -> usize {
15001 (self.end.0 - self.start.0) as usize
15002 }
15003
15004 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15005 (self.start.0..self.end.0).map(MultiBufferRow)
15006 }
15007}
15008
15009impl RowRangeExt for Range<DisplayRow> {
15010 type Row = DisplayRow;
15011
15012 fn len(&self) -> usize {
15013 (self.end.0 - self.start.0) as usize
15014 }
15015
15016 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15017 (self.start.0..self.end.0).map(DisplayRow)
15018 }
15019}
15020
15021fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15022 if hunk.diff_base_byte_range.is_empty() {
15023 DiffHunkStatus::Added
15024 } else if hunk.row_range.is_empty() {
15025 DiffHunkStatus::Removed
15026 } else {
15027 DiffHunkStatus::Modified
15028 }
15029}
15030
15031/// If select range has more than one line, we
15032/// just point the cursor to range.start.
15033fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15034 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15035 range
15036 } else {
15037 range.start..range.start
15038 }
15039}
15040
15041pub struct KillRing(ClipboardItem);
15042impl Global for KillRing {}
15043
15044const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);