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 debounced_delay;
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;
45mod signature_help;
46#[cfg(any(test, feature = "test-support"))]
47pub mod test;
48
49use ::git::diff::DiffHunkStatus;
50pub(crate) use actions::*;
51pub use actions::{OpenExcerpts, OpenExcerptsSplit};
52use aho_corasick::AhoCorasick;
53use anyhow::{anyhow, Context as _, Result};
54use blink_manager::BlinkManager;
55use client::{Collaborator, ParticipantIndex};
56use clock::ReplicaId;
57use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
58use convert_case::{Case, Casing};
59use debounced_delay::DebouncedDelay;
60use display_map::*;
61pub use display_map::{DisplayPoint, FoldPlaceholder};
62pub use editor_settings::{
63 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
64};
65pub use editor_settings_controls::*;
66use element::LineWithInvisibles;
67pub use element::{
68 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
69};
70use futures::{future, FutureExt};
71use fuzzy::{StringMatch, StringMatchCandidate};
72use git::blame::GitBlame;
73use gpui::{
74 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
75 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
76 ClipboardItem, Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent,
77 FocusableView, FontId, FontWeight, Global, HighlightStyle, Hsla, InteractiveText, KeyContext,
78 ListSizingBehavior, Model, ModelContext, MouseButton, PaintQuad, ParentElement, Pixels, Render,
79 ScrollStrategy, SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task,
80 TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle, UniformListScrollHandle, View,
81 ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle, WeakView, WindowContext,
82};
83use highlight_matching_bracket::refresh_matching_bracket_highlights;
84use hover_popover::{hide_hover, HoverState};
85pub(crate) use hunk_diff::HoveredHunk;
86use hunk_diff::{diff_hunk_to_display, ExpandedHunks};
87use indent_guides::ActiveIndentGuidesState;
88use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
89pub use inline_completion::Direction;
90use inline_completion::{InlayProposal, InlineCompletionProvider, InlineCompletionProviderHandle};
91pub use items::MAX_TAB_TITLE_LEN;
92use itertools::Itertools;
93use language::{
94 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
95 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
96 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
97 Point, Selection, SelectionGoal, TransactionId,
98};
99use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
100use linked_editing_ranges::refresh_linked_ranges;
101pub use proposed_changes_editor::{
102 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
103};
104use similar::{ChangeTag, TextDiff};
105use std::iter::Peekable;
106use task::{ResolvedTask, TaskTemplate, TaskVariables};
107
108use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
109pub use lsp::CompletionContext;
110use lsp::{
111 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
112 LanguageServerId, LanguageServerName,
113};
114use mouse_context_menu::MouseContextMenu;
115use movement::TextLayoutDetails;
116pub use multi_buffer::{
117 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
118 ToPoint,
119};
120use multi_buffer::{
121 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
122};
123use ordered_float::OrderedFloat;
124use parking_lot::{Mutex, RwLock};
125use project::{
126 lsp_store::{FormatTarget, FormatTrigger},
127 project_settings::{GitGutterSetting, ProjectSettings},
128 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
129 Project, ProjectItem, ProjectTransaction, TaskSourceKind,
130};
131use rand::prelude::*;
132use rpc::{proto::*, ErrorExt};
133use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
134use selections_collection::{
135 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
136};
137use serde::{Deserialize, Serialize};
138use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
139use smallvec::SmallVec;
140use snippet::Snippet;
141use std::{
142 any::TypeId,
143 borrow::Cow,
144 cell::RefCell,
145 cmp::{self, Ordering, Reverse},
146 mem,
147 num::NonZeroU32,
148 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
149 path::{Path, PathBuf},
150 rc::Rc,
151 sync::Arc,
152 time::{Duration, Instant},
153};
154pub use sum_tree::Bias;
155use sum_tree::TreeMap;
156use text::{BufferId, OffsetUtf16, Rope};
157use theme::{
158 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
159 ThemeColors, ThemeSettings,
160};
161use ui::{
162 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
163 ListItem, Popover, PopoverMenuHandle, Tooltip,
164};
165use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
166use workspace::item::{ItemHandle, PreviewTabsSettings};
167use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
168use workspace::{
169 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
170};
171use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
172
173use crate::hover_links::find_url;
174use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
175
176pub const FILE_HEADER_HEIGHT: u32 = 2;
177pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
178pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
179pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
180const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
181const MAX_LINE_LEN: usize = 1024;
182const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
183const MAX_SELECTION_HISTORY_LEN: usize = 1024;
184pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
185#[doc(hidden)]
186pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
187#[doc(hidden)]
188pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
189
190pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
191pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
192
193pub fn render_parsed_markdown(
194 element_id: impl Into<ElementId>,
195 parsed: &language::ParsedMarkdown,
196 editor_style: &EditorStyle,
197 workspace: Option<WeakView<Workspace>>,
198 cx: &mut WindowContext,
199) -> InteractiveText {
200 let code_span_background_color = cx
201 .theme()
202 .colors()
203 .editor_document_highlight_read_background;
204
205 let highlights = gpui::combine_highlights(
206 parsed.highlights.iter().filter_map(|(range, highlight)| {
207 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
208 Some((range.clone(), highlight))
209 }),
210 parsed
211 .regions
212 .iter()
213 .zip(&parsed.region_ranges)
214 .filter_map(|(region, range)| {
215 if region.code {
216 Some((
217 range.clone(),
218 HighlightStyle {
219 background_color: Some(code_span_background_color),
220 ..Default::default()
221 },
222 ))
223 } else {
224 None
225 }
226 }),
227 );
228
229 let mut links = Vec::new();
230 let mut link_ranges = Vec::new();
231 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
232 if let Some(link) = region.link.clone() {
233 links.push(link);
234 link_ranges.push(range.clone());
235 }
236 }
237
238 InteractiveText::new(
239 element_id,
240 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
241 )
242 .on_click(link_ranges, move |clicked_range_ix, cx| {
243 match &links[clicked_range_ix] {
244 markdown::Link::Web { url } => cx.open_url(url),
245 markdown::Link::Path { path } => {
246 if let Some(workspace) = &workspace {
247 _ = workspace.update(cx, |workspace, cx| {
248 workspace.open_abs_path(path.clone(), false, cx).detach();
249 });
250 }
251 }
252 }
253 })
254}
255
256#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
257pub(crate) enum InlayId {
258 Suggestion(usize),
259 Hint(usize),
260}
261
262impl InlayId {
263 fn id(&self) -> usize {
264 match self {
265 Self::Suggestion(id) => *id,
266 Self::Hint(id) => *id,
267 }
268 }
269}
270
271enum DiffRowHighlight {}
272enum DocumentHighlightRead {}
273enum DocumentHighlightWrite {}
274enum InputComposition {}
275
276#[derive(Debug, Copy, Clone, PartialEq, Eq)]
277pub enum Navigated {
278 Yes,
279 No,
280}
281
282impl Navigated {
283 pub fn from_bool(yes: bool) -> Navigated {
284 if yes {
285 Navigated::Yes
286 } else {
287 Navigated::No
288 }
289 }
290}
291
292pub fn init_settings(cx: &mut AppContext) {
293 EditorSettings::register(cx);
294}
295
296pub fn init(cx: &mut AppContext) {
297 init_settings(cx);
298
299 workspace::register_project_item::<Editor>(cx);
300 workspace::FollowableViewRegistry::register::<Editor>(cx);
301 workspace::register_serializable_item::<Editor>(cx);
302
303 cx.observe_new_views(
304 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
305 workspace.register_action(Editor::new_file);
306 workspace.register_action(Editor::new_file_vertical);
307 workspace.register_action(Editor::new_file_horizontal);
308 },
309 )
310 .detach();
311
312 cx.on_action(move |_: &workspace::NewFile, cx| {
313 let app_state = workspace::AppState::global(cx);
314 if let Some(app_state) = app_state.upgrade() {
315 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
316 Editor::new_file(workspace, &Default::default(), cx)
317 })
318 .detach();
319 }
320 });
321 cx.on_action(move |_: &workspace::NewWindow, cx| {
322 let app_state = workspace::AppState::global(cx);
323 if let Some(app_state) = app_state.upgrade() {
324 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
325 Editor::new_file(workspace, &Default::default(), cx)
326 })
327 .detach();
328 }
329 });
330}
331
332pub struct SearchWithinRange;
333
334trait InvalidationRegion {
335 fn ranges(&self) -> &[Range<Anchor>];
336}
337
338#[derive(Clone, Debug, PartialEq)]
339pub enum SelectPhase {
340 Begin {
341 position: DisplayPoint,
342 add: bool,
343 click_count: usize,
344 },
345 BeginColumnar {
346 position: DisplayPoint,
347 reset: bool,
348 goal_column: u32,
349 },
350 Extend {
351 position: DisplayPoint,
352 click_count: usize,
353 },
354 Update {
355 position: DisplayPoint,
356 goal_column: u32,
357 scroll_delta: gpui::Point<f32>,
358 },
359 End,
360}
361
362#[derive(Clone, Debug)]
363pub enum SelectMode {
364 Character,
365 Word(Range<Anchor>),
366 Line(Range<Anchor>),
367 All,
368}
369
370#[derive(Copy, Clone, PartialEq, Eq, Debug)]
371pub enum EditorMode {
372 SingleLine { auto_width: bool },
373 AutoHeight { max_lines: usize },
374 Full,
375}
376
377#[derive(Copy, Clone, Debug)]
378pub enum SoftWrap {
379 /// Prefer not to wrap at all.
380 ///
381 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
382 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
383 GitDiff,
384 /// Prefer a single line generally, unless an overly long line is encountered.
385 None,
386 /// Soft wrap lines that exceed the editor width.
387 EditorWidth,
388 /// Soft wrap lines at the preferred line length.
389 Column(u32),
390 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
391 Bounded(u32),
392}
393
394#[derive(Clone)]
395pub struct EditorStyle {
396 pub background: Hsla,
397 pub local_player: PlayerColor,
398 pub text: TextStyle,
399 pub scrollbar_width: Pixels,
400 pub syntax: Arc<SyntaxTheme>,
401 pub status: StatusColors,
402 pub inlay_hints_style: HighlightStyle,
403 pub suggestions_style: HighlightStyle,
404 pub unnecessary_code_fade: f32,
405}
406
407impl Default for EditorStyle {
408 fn default() -> Self {
409 Self {
410 background: Hsla::default(),
411 local_player: PlayerColor::default(),
412 text: TextStyle::default(),
413 scrollbar_width: Pixels::default(),
414 syntax: Default::default(),
415 // HACK: Status colors don't have a real default.
416 // We should look into removing the status colors from the editor
417 // style and retrieve them directly from the theme.
418 status: StatusColors::dark(),
419 inlay_hints_style: HighlightStyle::default(),
420 suggestions_style: HighlightStyle::default(),
421 unnecessary_code_fade: Default::default(),
422 }
423 }
424}
425
426pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
427 let show_background = language_settings::language_settings(None, None, cx)
428 .inlay_hints
429 .show_background;
430
431 HighlightStyle {
432 color: Some(cx.theme().status().hint),
433 background_color: show_background.then(|| cx.theme().status().hint_background),
434 ..HighlightStyle::default()
435 }
436}
437
438type CompletionId = usize;
439
440#[derive(Clone, Debug)]
441struct CompletionState {
442 // render_inlay_ids represents the inlay hints that are inserted
443 // for rendering the inline completions. They may be discontinuous
444 // in the event that the completion provider returns some intersection
445 // with the existing content.
446 render_inlay_ids: Vec<InlayId>,
447 // text is the resulting rope that is inserted when the user accepts a completion.
448 text: Rope,
449 // position is the position of the cursor when the completion was triggered.
450 position: multi_buffer::Anchor,
451 // delete_range is the range of text that this completion state covers.
452 // if the completion is accepted, this range should be deleted.
453 delete_range: Option<Range<multi_buffer::Anchor>>,
454}
455
456#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
457struct EditorActionId(usize);
458
459impl EditorActionId {
460 pub fn post_inc(&mut self) -> Self {
461 let answer = self.0;
462
463 *self = Self(answer + 1);
464
465 Self(answer)
466 }
467}
468
469// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
470// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
471
472type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
473type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
474
475#[derive(Default)]
476struct ScrollbarMarkerState {
477 scrollbar_size: Size<Pixels>,
478 dirty: bool,
479 markers: Arc<[PaintQuad]>,
480 pending_refresh: Option<Task<Result<()>>>,
481}
482
483impl ScrollbarMarkerState {
484 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
485 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
486 }
487}
488
489#[derive(Clone, Debug)]
490struct RunnableTasks {
491 templates: Vec<(TaskSourceKind, TaskTemplate)>,
492 offset: MultiBufferOffset,
493 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
494 column: u32,
495 // Values of all named captures, including those starting with '_'
496 extra_variables: HashMap<String, String>,
497 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
498 context_range: Range<BufferOffset>,
499}
500
501impl RunnableTasks {
502 fn resolve<'a>(
503 &'a self,
504 cx: &'a task::TaskContext,
505 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
506 self.templates.iter().filter_map(|(kind, template)| {
507 template
508 .resolve_task(&kind.to_id_base(), cx)
509 .map(|task| (kind.clone(), task))
510 })
511 }
512}
513
514#[derive(Clone)]
515struct ResolvedTasks {
516 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
517 position: Anchor,
518}
519#[derive(Copy, Clone, Debug)]
520struct MultiBufferOffset(usize);
521#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
522struct BufferOffset(usize);
523
524// Addons allow storing per-editor state in other crates (e.g. Vim)
525pub trait Addon: 'static {
526 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
527
528 fn to_any(&self) -> &dyn std::any::Any;
529}
530
531#[derive(Debug, Copy, Clone, PartialEq, Eq)]
532pub enum IsVimMode {
533 Yes,
534 No,
535}
536
537/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
538///
539/// See the [module level documentation](self) for more information.
540pub struct Editor {
541 focus_handle: FocusHandle,
542 last_focused_descendant: Option<WeakFocusHandle>,
543 /// The text buffer being edited
544 buffer: Model<MultiBuffer>,
545 /// Map of how text in the buffer should be displayed.
546 /// Handles soft wraps, folds, fake inlay text insertions, etc.
547 pub display_map: Model<DisplayMap>,
548 pub selections: SelectionsCollection,
549 pub scroll_manager: ScrollManager,
550 /// When inline assist editors are linked, they all render cursors because
551 /// typing enters text into each of them, even the ones that aren't focused.
552 pub(crate) show_cursor_when_unfocused: bool,
553 columnar_selection_tail: Option<Anchor>,
554 add_selections_state: Option<AddSelectionsState>,
555 select_next_state: Option<SelectNextState>,
556 select_prev_state: Option<SelectNextState>,
557 selection_history: SelectionHistory,
558 autoclose_regions: Vec<AutocloseRegion>,
559 snippet_stack: InvalidationStack<SnippetState>,
560 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
561 ime_transaction: Option<TransactionId>,
562 active_diagnostics: Option<ActiveDiagnosticGroup>,
563 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
564
565 project: Option<Model<Project>>,
566 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
567 completion_provider: Option<Box<dyn CompletionProvider>>,
568 collaboration_hub: Option<Box<dyn CollaborationHub>>,
569 blink_manager: Model<BlinkManager>,
570 show_cursor_names: bool,
571 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
572 pub show_local_selections: bool,
573 mode: EditorMode,
574 show_breadcrumbs: bool,
575 show_gutter: bool,
576 show_line_numbers: Option<bool>,
577 use_relative_line_numbers: Option<bool>,
578 show_git_diff_gutter: Option<bool>,
579 show_code_actions: Option<bool>,
580 show_runnables: Option<bool>,
581 show_wrap_guides: Option<bool>,
582 show_indent_guides: Option<bool>,
583 placeholder_text: Option<Arc<str>>,
584 highlight_order: usize,
585 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
586 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
587 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
588 scrollbar_marker_state: ScrollbarMarkerState,
589 active_indent_guides_state: ActiveIndentGuidesState,
590 nav_history: Option<ItemNavHistory>,
591 context_menu: RwLock<Option<ContextMenu>>,
592 mouse_context_menu: Option<MouseContextMenu>,
593 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
594 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
595 signature_help_state: SignatureHelpState,
596 auto_signature_help: Option<bool>,
597 find_all_references_task_sources: Vec<Anchor>,
598 next_completion_id: CompletionId,
599 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
600 code_actions_task: Option<Task<Result<()>>>,
601 document_highlights_task: Option<Task<()>>,
602 linked_editing_range_task: Option<Task<Option<()>>>,
603 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
604 pending_rename: Option<RenameState>,
605 searchable: bool,
606 cursor_shape: CursorShape,
607 current_line_highlight: Option<CurrentLineHighlight>,
608 collapse_matches: bool,
609 autoindent_mode: Option<AutoindentMode>,
610 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
611 input_enabled: bool,
612 use_modal_editing: bool,
613 read_only: bool,
614 leader_peer_id: Option<PeerId>,
615 remote_id: Option<ViewId>,
616 hover_state: HoverState,
617 gutter_hovered: bool,
618 hovered_link_state: Option<HoveredLinkState>,
619 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
620 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
621 active_inline_completion: Option<CompletionState>,
622 // enable_inline_completions is a switch that Vim can use to disable
623 // inline completions based on its mode.
624 enable_inline_completions: bool,
625 show_inline_completions_override: Option<bool>,
626 inlay_hint_cache: InlayHintCache,
627 expanded_hunks: ExpandedHunks,
628 next_inlay_id: usize,
629 _subscriptions: Vec<Subscription>,
630 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
631 gutter_dimensions: GutterDimensions,
632 style: Option<EditorStyle>,
633 text_style_refinement: Option<TextStyleRefinement>,
634 next_editor_action_id: EditorActionId,
635 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
636 use_autoclose: bool,
637 use_auto_surround: bool,
638 auto_replace_emoji_shortcode: bool,
639 show_git_blame_gutter: bool,
640 show_git_blame_inline: bool,
641 show_git_blame_inline_delay_task: Option<Task<()>>,
642 git_blame_inline_enabled: bool,
643 serialize_dirty_buffers: bool,
644 show_selection_menu: Option<bool>,
645 blame: Option<Model<GitBlame>>,
646 blame_subscription: Option<Subscription>,
647 custom_context_menu: Option<
648 Box<
649 dyn 'static
650 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
651 >,
652 >,
653 last_bounds: Option<Bounds<Pixels>>,
654 expect_bounds_change: Option<Bounds<Pixels>>,
655 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
656 tasks_update_task: Option<Task<()>>,
657 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
658 breadcrumb_header: Option<String>,
659 focused_block: Option<FocusedBlock>,
660 next_scroll_position: NextScrollCursorCenterTopBottom,
661 addons: HashMap<TypeId, Box<dyn Addon>>,
662 _scroll_cursor_center_top_bottom_task: Task<()>,
663}
664
665#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
666enum NextScrollCursorCenterTopBottom {
667 #[default]
668 Center,
669 Top,
670 Bottom,
671}
672
673impl NextScrollCursorCenterTopBottom {
674 fn next(&self) -> Self {
675 match self {
676 Self::Center => Self::Top,
677 Self::Top => Self::Bottom,
678 Self::Bottom => Self::Center,
679 }
680 }
681}
682
683#[derive(Clone)]
684pub struct EditorSnapshot {
685 pub mode: EditorMode,
686 show_gutter: bool,
687 show_line_numbers: Option<bool>,
688 show_git_diff_gutter: Option<bool>,
689 show_code_actions: Option<bool>,
690 show_runnables: Option<bool>,
691 git_blame_gutter_max_author_length: Option<usize>,
692 pub display_snapshot: DisplaySnapshot,
693 pub placeholder_text: Option<Arc<str>>,
694 is_focused: bool,
695 scroll_anchor: ScrollAnchor,
696 ongoing_scroll: OngoingScroll,
697 current_line_highlight: CurrentLineHighlight,
698 gutter_hovered: bool,
699}
700
701const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
702
703#[derive(Default, Debug, Clone, Copy)]
704pub struct GutterDimensions {
705 pub left_padding: Pixels,
706 pub right_padding: Pixels,
707 pub width: Pixels,
708 pub margin: Pixels,
709 pub git_blame_entries_width: Option<Pixels>,
710}
711
712impl GutterDimensions {
713 /// The full width of the space taken up by the gutter.
714 pub fn full_width(&self) -> Pixels {
715 self.margin + self.width
716 }
717
718 /// The width of the space reserved for the fold indicators,
719 /// use alongside 'justify_end' and `gutter_width` to
720 /// right align content with the line numbers
721 pub fn fold_area_width(&self) -> Pixels {
722 self.margin + self.right_padding
723 }
724}
725
726#[derive(Debug)]
727pub struct RemoteSelection {
728 pub replica_id: ReplicaId,
729 pub selection: Selection<Anchor>,
730 pub cursor_shape: CursorShape,
731 pub peer_id: PeerId,
732 pub line_mode: bool,
733 pub participant_index: Option<ParticipantIndex>,
734 pub user_name: Option<SharedString>,
735}
736
737#[derive(Clone, Debug)]
738struct SelectionHistoryEntry {
739 selections: Arc<[Selection<Anchor>]>,
740 select_next_state: Option<SelectNextState>,
741 select_prev_state: Option<SelectNextState>,
742 add_selections_state: Option<AddSelectionsState>,
743}
744
745enum SelectionHistoryMode {
746 Normal,
747 Undoing,
748 Redoing,
749}
750
751#[derive(Clone, PartialEq, Eq, Hash)]
752struct HoveredCursor {
753 replica_id: u16,
754 selection_id: usize,
755}
756
757impl Default for SelectionHistoryMode {
758 fn default() -> Self {
759 Self::Normal
760 }
761}
762
763#[derive(Default)]
764struct SelectionHistory {
765 #[allow(clippy::type_complexity)]
766 selections_by_transaction:
767 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
768 mode: SelectionHistoryMode,
769 undo_stack: VecDeque<SelectionHistoryEntry>,
770 redo_stack: VecDeque<SelectionHistoryEntry>,
771}
772
773impl SelectionHistory {
774 fn insert_transaction(
775 &mut self,
776 transaction_id: TransactionId,
777 selections: Arc<[Selection<Anchor>]>,
778 ) {
779 self.selections_by_transaction
780 .insert(transaction_id, (selections, None));
781 }
782
783 #[allow(clippy::type_complexity)]
784 fn transaction(
785 &self,
786 transaction_id: TransactionId,
787 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
788 self.selections_by_transaction.get(&transaction_id)
789 }
790
791 #[allow(clippy::type_complexity)]
792 fn transaction_mut(
793 &mut self,
794 transaction_id: TransactionId,
795 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
796 self.selections_by_transaction.get_mut(&transaction_id)
797 }
798
799 fn push(&mut self, entry: SelectionHistoryEntry) {
800 if !entry.selections.is_empty() {
801 match self.mode {
802 SelectionHistoryMode::Normal => {
803 self.push_undo(entry);
804 self.redo_stack.clear();
805 }
806 SelectionHistoryMode::Undoing => self.push_redo(entry),
807 SelectionHistoryMode::Redoing => self.push_undo(entry),
808 }
809 }
810 }
811
812 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
813 if self
814 .undo_stack
815 .back()
816 .map_or(true, |e| e.selections != entry.selections)
817 {
818 self.undo_stack.push_back(entry);
819 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
820 self.undo_stack.pop_front();
821 }
822 }
823 }
824
825 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
826 if self
827 .redo_stack
828 .back()
829 .map_or(true, |e| e.selections != entry.selections)
830 {
831 self.redo_stack.push_back(entry);
832 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
833 self.redo_stack.pop_front();
834 }
835 }
836 }
837}
838
839struct RowHighlight {
840 index: usize,
841 range: Range<Anchor>,
842 color: Hsla,
843 should_autoscroll: bool,
844}
845
846#[derive(Clone, Debug)]
847struct AddSelectionsState {
848 above: bool,
849 stack: Vec<usize>,
850}
851
852#[derive(Clone)]
853struct SelectNextState {
854 query: AhoCorasick,
855 wordwise: bool,
856 done: bool,
857}
858
859impl std::fmt::Debug for SelectNextState {
860 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
861 f.debug_struct(std::any::type_name::<Self>())
862 .field("wordwise", &self.wordwise)
863 .field("done", &self.done)
864 .finish()
865 }
866}
867
868#[derive(Debug)]
869struct AutocloseRegion {
870 selection_id: usize,
871 range: Range<Anchor>,
872 pair: BracketPair,
873}
874
875#[derive(Debug)]
876struct SnippetState {
877 ranges: Vec<Vec<Range<Anchor>>>,
878 active_index: usize,
879 choices: Vec<Option<Vec<String>>>,
880}
881
882#[doc(hidden)]
883pub struct RenameState {
884 pub range: Range<Anchor>,
885 pub old_name: Arc<str>,
886 pub editor: View<Editor>,
887 block_id: CustomBlockId,
888}
889
890struct InvalidationStack<T>(Vec<T>);
891
892struct RegisteredInlineCompletionProvider {
893 provider: Arc<dyn InlineCompletionProviderHandle>,
894 _subscription: Subscription,
895}
896
897enum ContextMenu {
898 Completions(CompletionsMenu),
899 CodeActions(CodeActionsMenu),
900}
901
902impl ContextMenu {
903 fn select_first(
904 &mut self,
905 provider: Option<&dyn CompletionProvider>,
906 cx: &mut ViewContext<Editor>,
907 ) -> bool {
908 if self.visible() {
909 match self {
910 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
911 ContextMenu::CodeActions(menu) => menu.select_first(cx),
912 }
913 true
914 } else {
915 false
916 }
917 }
918
919 fn select_prev(
920 &mut self,
921 provider: Option<&dyn CompletionProvider>,
922 cx: &mut ViewContext<Editor>,
923 ) -> bool {
924 if self.visible() {
925 match self {
926 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
927 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
928 }
929 true
930 } else {
931 false
932 }
933 }
934
935 fn select_next(
936 &mut self,
937 provider: Option<&dyn CompletionProvider>,
938 cx: &mut ViewContext<Editor>,
939 ) -> bool {
940 if self.visible() {
941 match self {
942 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
943 ContextMenu::CodeActions(menu) => menu.select_next(cx),
944 }
945 true
946 } else {
947 false
948 }
949 }
950
951 fn select_last(
952 &mut self,
953 provider: Option<&dyn CompletionProvider>,
954 cx: &mut ViewContext<Editor>,
955 ) -> bool {
956 if self.visible() {
957 match self {
958 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
959 ContextMenu::CodeActions(menu) => menu.select_last(cx),
960 }
961 true
962 } else {
963 false
964 }
965 }
966
967 fn visible(&self) -> bool {
968 match self {
969 ContextMenu::Completions(menu) => menu.visible(),
970 ContextMenu::CodeActions(menu) => menu.visible(),
971 }
972 }
973
974 fn render(
975 &self,
976 cursor_position: DisplayPoint,
977 style: &EditorStyle,
978 max_height: Pixels,
979 workspace: Option<WeakView<Workspace>>,
980 cx: &mut ViewContext<Editor>,
981 ) -> (ContextMenuOrigin, AnyElement) {
982 match self {
983 ContextMenu::Completions(menu) => (
984 ContextMenuOrigin::EditorPoint(cursor_position),
985 menu.render(style, max_height, workspace, cx),
986 ),
987 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
988 }
989 }
990}
991
992enum ContextMenuOrigin {
993 EditorPoint(DisplayPoint),
994 GutterIndicator(DisplayRow),
995}
996
997#[derive(Clone, Debug)]
998struct CompletionsMenu {
999 id: CompletionId,
1000 sort_completions: bool,
1001 initial_position: Anchor,
1002 buffer: Model<Buffer>,
1003 completions: Arc<RwLock<Box<[Completion]>>>,
1004 match_candidates: Arc<[StringMatchCandidate]>,
1005 matches: Arc<[StringMatch]>,
1006 selected_item: usize,
1007 scroll_handle: UniformListScrollHandle,
1008 selected_completion_resolve_debounce: Option<Arc<Mutex<DebouncedDelay>>>,
1009}
1010
1011impl CompletionsMenu {
1012 fn new(
1013 id: CompletionId,
1014 sort_completions: bool,
1015 initial_position: Anchor,
1016 buffer: Model<Buffer>,
1017 completions: Box<[Completion]>,
1018 ) -> Self {
1019 let match_candidates = completions
1020 .iter()
1021 .enumerate()
1022 .map(|(id, completion)| {
1023 StringMatchCandidate::new(
1024 id,
1025 completion.label.text[completion.label.filter_range.clone()].into(),
1026 )
1027 })
1028 .collect();
1029
1030 Self {
1031 id,
1032 sort_completions,
1033 initial_position,
1034 buffer,
1035 completions: Arc::new(RwLock::new(completions)),
1036 match_candidates,
1037 matches: Vec::new().into(),
1038 selected_item: 0,
1039 scroll_handle: UniformListScrollHandle::new(),
1040 selected_completion_resolve_debounce: Some(Arc::new(Mutex::new(DebouncedDelay::new()))),
1041 }
1042 }
1043
1044 fn new_snippet_choices(
1045 id: CompletionId,
1046 sort_completions: bool,
1047 choices: &Vec<String>,
1048 selection: Range<Anchor>,
1049 buffer: Model<Buffer>,
1050 ) -> Self {
1051 let completions = choices
1052 .iter()
1053 .map(|choice| Completion {
1054 old_range: selection.start.text_anchor..selection.end.text_anchor,
1055 new_text: choice.to_string(),
1056 label: CodeLabel {
1057 text: choice.to_string(),
1058 runs: Default::default(),
1059 filter_range: Default::default(),
1060 },
1061 server_id: LanguageServerId(usize::MAX),
1062 documentation: None,
1063 lsp_completion: Default::default(),
1064 confirm: None,
1065 })
1066 .collect();
1067
1068 let match_candidates = choices
1069 .iter()
1070 .enumerate()
1071 .map(|(id, completion)| StringMatchCandidate::new(id, completion.to_string()))
1072 .collect();
1073 let matches = choices
1074 .iter()
1075 .enumerate()
1076 .map(|(id, completion)| StringMatch {
1077 candidate_id: id,
1078 score: 1.,
1079 positions: vec![],
1080 string: completion.clone(),
1081 })
1082 .collect();
1083 Self {
1084 id,
1085 sort_completions,
1086 initial_position: selection.start,
1087 buffer,
1088 completions: Arc::new(RwLock::new(completions)),
1089 match_candidates,
1090 matches,
1091 selected_item: 0,
1092 scroll_handle: UniformListScrollHandle::new(),
1093 selected_completion_resolve_debounce: Some(Arc::new(Mutex::new(DebouncedDelay::new()))),
1094 }
1095 }
1096
1097 fn suppress_documentation_resolution(mut self) -> Self {
1098 self.selected_completion_resolve_debounce.take();
1099 self
1100 }
1101
1102 fn select_first(
1103 &mut self,
1104 provider: Option<&dyn CompletionProvider>,
1105 cx: &mut ViewContext<Editor>,
1106 ) {
1107 self.selected_item = 0;
1108 self.scroll_handle
1109 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1110 self.resolve_selected_completion(provider, cx);
1111 cx.notify();
1112 }
1113
1114 fn select_prev(
1115 &mut self,
1116 provider: Option<&dyn CompletionProvider>,
1117 cx: &mut ViewContext<Editor>,
1118 ) {
1119 if self.selected_item > 0 {
1120 self.selected_item -= 1;
1121 } else {
1122 self.selected_item = self.matches.len() - 1;
1123 }
1124 self.scroll_handle
1125 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1126 self.resolve_selected_completion(provider, cx);
1127 cx.notify();
1128 }
1129
1130 fn select_next(
1131 &mut self,
1132 provider: Option<&dyn CompletionProvider>,
1133 cx: &mut ViewContext<Editor>,
1134 ) {
1135 if self.selected_item + 1 < self.matches.len() {
1136 self.selected_item += 1;
1137 } else {
1138 self.selected_item = 0;
1139 }
1140 self.scroll_handle
1141 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1142 self.resolve_selected_completion(provider, cx);
1143 cx.notify();
1144 }
1145
1146 fn select_last(
1147 &mut self,
1148 provider: Option<&dyn CompletionProvider>,
1149 cx: &mut ViewContext<Editor>,
1150 ) {
1151 self.selected_item = self.matches.len() - 1;
1152 self.scroll_handle
1153 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1154 self.resolve_selected_completion(provider, cx);
1155 cx.notify();
1156 }
1157
1158 fn resolve_selected_completion(
1159 &mut self,
1160 provider: Option<&dyn CompletionProvider>,
1161 cx: &mut ViewContext<Editor>,
1162 ) {
1163 let completion_index = self.matches[self.selected_item].candidate_id;
1164 let Some(provider) = provider else {
1165 return;
1166 };
1167 let Some(completion_resolve) = self.selected_completion_resolve_debounce.as_ref() else {
1168 return;
1169 };
1170
1171 let resolve_task = provider.resolve_completions(
1172 self.buffer.clone(),
1173 vec![completion_index],
1174 self.completions.clone(),
1175 cx,
1176 );
1177
1178 let delay_ms =
1179 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1180 let delay = Duration::from_millis(delay_ms);
1181
1182 completion_resolve.lock().fire_new(delay, cx, |_, cx| {
1183 cx.spawn(move |this, mut cx| async move {
1184 if let Some(true) = resolve_task.await.log_err() {
1185 this.update(&mut cx, |_, cx| cx.notify()).ok();
1186 }
1187 })
1188 });
1189 }
1190
1191 fn visible(&self) -> bool {
1192 !self.matches.is_empty()
1193 }
1194
1195 fn render(
1196 &self,
1197 style: &EditorStyle,
1198 max_height: Pixels,
1199 workspace: Option<WeakView<Workspace>>,
1200 cx: &mut ViewContext<Editor>,
1201 ) -> AnyElement {
1202 let settings = EditorSettings::get_global(cx);
1203 let show_completion_documentation = settings.show_completion_documentation;
1204
1205 let widest_completion_ix = self
1206 .matches
1207 .iter()
1208 .enumerate()
1209 .max_by_key(|(_, mat)| {
1210 let completions = self.completions.read();
1211 let completion = &completions[mat.candidate_id];
1212 let documentation = &completion.documentation;
1213
1214 let mut len = completion.label.text.chars().count();
1215 if let Some(Documentation::SingleLine(text)) = documentation {
1216 if show_completion_documentation {
1217 len += text.chars().count();
1218 }
1219 }
1220
1221 len
1222 })
1223 .map(|(ix, _)| ix);
1224
1225 let completions = self.completions.clone();
1226 let matches = self.matches.clone();
1227 let selected_item = self.selected_item;
1228 let style = style.clone();
1229
1230 let multiline_docs = if show_completion_documentation {
1231 let mat = &self.matches[selected_item];
1232 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1233 Some(Documentation::MultiLinePlainText(text)) => {
1234 Some(div().child(SharedString::from(text.clone())))
1235 }
1236 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1237 Some(div().child(render_parsed_markdown(
1238 "completions_markdown",
1239 parsed,
1240 &style,
1241 workspace,
1242 cx,
1243 )))
1244 }
1245 _ => None,
1246 };
1247 multiline_docs.map(|div| {
1248 div.id("multiline_docs")
1249 .max_h(max_height)
1250 .flex_1()
1251 .px_1p5()
1252 .py_1()
1253 .min_w(px(260.))
1254 .max_w(px(640.))
1255 .w(px(500.))
1256 .overflow_y_scroll()
1257 .occlude()
1258 })
1259 } else {
1260 None
1261 };
1262
1263 let list = uniform_list(
1264 cx.view().clone(),
1265 "completions",
1266 matches.len(),
1267 move |_editor, range, cx| {
1268 let start_ix = range.start;
1269 let completions_guard = completions.read();
1270
1271 matches[range]
1272 .iter()
1273 .enumerate()
1274 .map(|(ix, mat)| {
1275 let item_ix = start_ix + ix;
1276 let candidate_id = mat.candidate_id;
1277 let completion = &completions_guard[candidate_id];
1278
1279 let documentation = if show_completion_documentation {
1280 &completion.documentation
1281 } else {
1282 &None
1283 };
1284
1285 let highlights = gpui::combine_highlights(
1286 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1287 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1288 |(range, mut highlight)| {
1289 // Ignore font weight for syntax highlighting, as we'll use it
1290 // for fuzzy matches.
1291 highlight.font_weight = None;
1292
1293 if completion.lsp_completion.deprecated.unwrap_or(false) {
1294 highlight.strikethrough = Some(StrikethroughStyle {
1295 thickness: 1.0.into(),
1296 ..Default::default()
1297 });
1298 highlight.color = Some(cx.theme().colors().text_muted);
1299 }
1300
1301 (range, highlight)
1302 },
1303 ),
1304 );
1305 let completion_label = StyledText::new(completion.label.text.clone())
1306 .with_highlights(&style.text, highlights);
1307 let documentation_label =
1308 if let Some(Documentation::SingleLine(text)) = documentation {
1309 if text.trim().is_empty() {
1310 None
1311 } else {
1312 Some(
1313 Label::new(text.clone())
1314 .ml_4()
1315 .size(LabelSize::Small)
1316 .color(Color::Muted),
1317 )
1318 }
1319 } else {
1320 None
1321 };
1322
1323 let color_swatch = completion
1324 .color()
1325 .map(|color| div().size_4().bg(color).rounded_sm());
1326
1327 div().min_w(px(220.)).max_w(px(540.)).child(
1328 ListItem::new(mat.candidate_id)
1329 .inset(true)
1330 .selected(item_ix == selected_item)
1331 .on_click(cx.listener(move |editor, _event, cx| {
1332 cx.stop_propagation();
1333 if let Some(task) = editor.confirm_completion(
1334 &ConfirmCompletion {
1335 item_ix: Some(item_ix),
1336 },
1337 cx,
1338 ) {
1339 task.detach_and_log_err(cx)
1340 }
1341 }))
1342 .start_slot::<Div>(color_swatch)
1343 .child(h_flex().overflow_hidden().child(completion_label))
1344 .end_slot::<Label>(documentation_label),
1345 )
1346 })
1347 .collect()
1348 },
1349 )
1350 .occlude()
1351 .max_h(max_height)
1352 .track_scroll(self.scroll_handle.clone())
1353 .with_width_from_item(widest_completion_ix)
1354 .with_sizing_behavior(ListSizingBehavior::Infer);
1355
1356 Popover::new()
1357 .child(list)
1358 .when_some(multiline_docs, |popover, multiline_docs| {
1359 popover.aside(multiline_docs)
1360 })
1361 .into_any_element()
1362 }
1363
1364 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1365 let mut matches = if let Some(query) = query {
1366 fuzzy::match_strings(
1367 &self.match_candidates,
1368 query,
1369 query.chars().any(|c| c.is_uppercase()),
1370 100,
1371 &Default::default(),
1372 executor,
1373 )
1374 .await
1375 } else {
1376 self.match_candidates
1377 .iter()
1378 .enumerate()
1379 .map(|(candidate_id, candidate)| StringMatch {
1380 candidate_id,
1381 score: Default::default(),
1382 positions: Default::default(),
1383 string: candidate.string.clone(),
1384 })
1385 .collect()
1386 };
1387
1388 // Remove all candidates where the query's start does not match the start of any word in the candidate
1389 if let Some(query) = query {
1390 if let Some(query_start) = query.chars().next() {
1391 matches.retain(|string_match| {
1392 split_words(&string_match.string).any(|word| {
1393 // Check that the first codepoint of the word as lowercase matches the first
1394 // codepoint of the query as lowercase
1395 word.chars()
1396 .flat_map(|codepoint| codepoint.to_lowercase())
1397 .zip(query_start.to_lowercase())
1398 .all(|(word_cp, query_cp)| word_cp == query_cp)
1399 })
1400 });
1401 }
1402 }
1403
1404 let completions = self.completions.read();
1405 if self.sort_completions {
1406 matches.sort_unstable_by_key(|mat| {
1407 // We do want to strike a balance here between what the language server tells us
1408 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1409 // `Creat` and there is a local variable called `CreateComponent`).
1410 // So what we do is: we bucket all matches into two buckets
1411 // - Strong matches
1412 // - Weak matches
1413 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1414 // and the Weak matches are the rest.
1415 //
1416 // For the strong matches, we sort by our fuzzy-finder score first and for the weak
1417 // matches, we prefer language-server sort_text first.
1418 //
1419 // The thinking behind that: we want to show strong matches first in order of relevance(fuzzy score).
1420 // Rest of the matches(weak) can be sorted as language-server expects.
1421
1422 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1423 enum MatchScore<'a> {
1424 Strong {
1425 score: Reverse<OrderedFloat<f64>>,
1426 sort_text: Option<&'a str>,
1427 sort_key: (usize, &'a str),
1428 },
1429 Weak {
1430 sort_text: Option<&'a str>,
1431 score: Reverse<OrderedFloat<f64>>,
1432 sort_key: (usize, &'a str),
1433 },
1434 }
1435
1436 let completion = &completions[mat.candidate_id];
1437 let sort_key = completion.sort_key();
1438 let sort_text = completion.lsp_completion.sort_text.as_deref();
1439 let score = Reverse(OrderedFloat(mat.score));
1440
1441 if mat.score >= 0.2 {
1442 MatchScore::Strong {
1443 score,
1444 sort_text,
1445 sort_key,
1446 }
1447 } else {
1448 MatchScore::Weak {
1449 sort_text,
1450 score,
1451 sort_key,
1452 }
1453 }
1454 });
1455 }
1456
1457 for mat in &mut matches {
1458 let completion = &completions[mat.candidate_id];
1459 mat.string.clone_from(&completion.label.text);
1460 for position in &mut mat.positions {
1461 *position += completion.label.filter_range.start;
1462 }
1463 }
1464 drop(completions);
1465
1466 self.matches = matches.into();
1467 self.selected_item = 0;
1468 }
1469}
1470
1471#[derive(Clone)]
1472struct AvailableCodeAction {
1473 excerpt_id: ExcerptId,
1474 action: CodeAction,
1475 provider: Arc<dyn CodeActionProvider>,
1476}
1477
1478#[derive(Clone)]
1479struct CodeActionContents {
1480 tasks: Option<Arc<ResolvedTasks>>,
1481 actions: Option<Arc<[AvailableCodeAction]>>,
1482}
1483
1484impl CodeActionContents {
1485 fn len(&self) -> usize {
1486 match (&self.tasks, &self.actions) {
1487 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1488 (Some(tasks), None) => tasks.templates.len(),
1489 (None, Some(actions)) => actions.len(),
1490 (None, None) => 0,
1491 }
1492 }
1493
1494 fn is_empty(&self) -> bool {
1495 match (&self.tasks, &self.actions) {
1496 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1497 (Some(tasks), None) => tasks.templates.is_empty(),
1498 (None, Some(actions)) => actions.is_empty(),
1499 (None, None) => true,
1500 }
1501 }
1502
1503 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1504 self.tasks
1505 .iter()
1506 .flat_map(|tasks| {
1507 tasks
1508 .templates
1509 .iter()
1510 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1511 })
1512 .chain(self.actions.iter().flat_map(|actions| {
1513 actions.iter().map(|available| CodeActionsItem::CodeAction {
1514 excerpt_id: available.excerpt_id,
1515 action: available.action.clone(),
1516 provider: available.provider.clone(),
1517 })
1518 }))
1519 }
1520 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1521 match (&self.tasks, &self.actions) {
1522 (Some(tasks), Some(actions)) => {
1523 if index < tasks.templates.len() {
1524 tasks
1525 .templates
1526 .get(index)
1527 .cloned()
1528 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1529 } else {
1530 actions.get(index - tasks.templates.len()).map(|available| {
1531 CodeActionsItem::CodeAction {
1532 excerpt_id: available.excerpt_id,
1533 action: available.action.clone(),
1534 provider: available.provider.clone(),
1535 }
1536 })
1537 }
1538 }
1539 (Some(tasks), None) => tasks
1540 .templates
1541 .get(index)
1542 .cloned()
1543 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1544 (None, Some(actions)) => {
1545 actions
1546 .get(index)
1547 .map(|available| CodeActionsItem::CodeAction {
1548 excerpt_id: available.excerpt_id,
1549 action: available.action.clone(),
1550 provider: available.provider.clone(),
1551 })
1552 }
1553 (None, None) => None,
1554 }
1555 }
1556}
1557
1558#[allow(clippy::large_enum_variant)]
1559#[derive(Clone)]
1560enum CodeActionsItem {
1561 Task(TaskSourceKind, ResolvedTask),
1562 CodeAction {
1563 excerpt_id: ExcerptId,
1564 action: CodeAction,
1565 provider: Arc<dyn CodeActionProvider>,
1566 },
1567}
1568
1569impl CodeActionsItem {
1570 fn as_task(&self) -> Option<&ResolvedTask> {
1571 let Self::Task(_, task) = self else {
1572 return None;
1573 };
1574 Some(task)
1575 }
1576 fn as_code_action(&self) -> Option<&CodeAction> {
1577 let Self::CodeAction { action, .. } = self else {
1578 return None;
1579 };
1580 Some(action)
1581 }
1582 fn label(&self) -> String {
1583 match self {
1584 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1585 Self::Task(_, task) => task.resolved_label.clone(),
1586 }
1587 }
1588}
1589
1590struct CodeActionsMenu {
1591 actions: CodeActionContents,
1592 buffer: Model<Buffer>,
1593 selected_item: usize,
1594 scroll_handle: UniformListScrollHandle,
1595 deployed_from_indicator: Option<DisplayRow>,
1596}
1597
1598impl CodeActionsMenu {
1599 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1600 self.selected_item = 0;
1601 self.scroll_handle
1602 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1603 cx.notify()
1604 }
1605
1606 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1607 if self.selected_item > 0 {
1608 self.selected_item -= 1;
1609 } else {
1610 self.selected_item = self.actions.len() - 1;
1611 }
1612 self.scroll_handle
1613 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1614 cx.notify();
1615 }
1616
1617 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1618 if self.selected_item + 1 < self.actions.len() {
1619 self.selected_item += 1;
1620 } else {
1621 self.selected_item = 0;
1622 }
1623 self.scroll_handle
1624 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1625 cx.notify();
1626 }
1627
1628 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1629 self.selected_item = self.actions.len() - 1;
1630 self.scroll_handle
1631 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1632 cx.notify()
1633 }
1634
1635 fn visible(&self) -> bool {
1636 !self.actions.is_empty()
1637 }
1638
1639 fn render(
1640 &self,
1641 cursor_position: DisplayPoint,
1642 _style: &EditorStyle,
1643 max_height: Pixels,
1644 cx: &mut ViewContext<Editor>,
1645 ) -> (ContextMenuOrigin, AnyElement) {
1646 let actions = self.actions.clone();
1647 let selected_item = self.selected_item;
1648 let element = uniform_list(
1649 cx.view().clone(),
1650 "code_actions_menu",
1651 self.actions.len(),
1652 move |_this, range, cx| {
1653 actions
1654 .iter()
1655 .skip(range.start)
1656 .take(range.end - range.start)
1657 .enumerate()
1658 .map(|(ix, action)| {
1659 let item_ix = range.start + ix;
1660 let selected = selected_item == item_ix;
1661 let colors = cx.theme().colors();
1662 div()
1663 .px_1()
1664 .rounded_md()
1665 .text_color(colors.text)
1666 .when(selected, |style| {
1667 style
1668 .bg(colors.element_active)
1669 .text_color(colors.text_accent)
1670 })
1671 .hover(|style| {
1672 style
1673 .bg(colors.element_hover)
1674 .text_color(colors.text_accent)
1675 })
1676 .whitespace_nowrap()
1677 .when_some(action.as_code_action(), |this, action| {
1678 this.on_mouse_down(
1679 MouseButton::Left,
1680 cx.listener(move |editor, _, cx| {
1681 cx.stop_propagation();
1682 if let Some(task) = editor.confirm_code_action(
1683 &ConfirmCodeAction {
1684 item_ix: Some(item_ix),
1685 },
1686 cx,
1687 ) {
1688 task.detach_and_log_err(cx)
1689 }
1690 }),
1691 )
1692 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1693 .child(SharedString::from(action.lsp_action.title.clone()))
1694 })
1695 .when_some(action.as_task(), |this, task| {
1696 this.on_mouse_down(
1697 MouseButton::Left,
1698 cx.listener(move |editor, _, cx| {
1699 cx.stop_propagation();
1700 if let Some(task) = editor.confirm_code_action(
1701 &ConfirmCodeAction {
1702 item_ix: Some(item_ix),
1703 },
1704 cx,
1705 ) {
1706 task.detach_and_log_err(cx)
1707 }
1708 }),
1709 )
1710 .child(SharedString::from(task.resolved_label.clone()))
1711 })
1712 })
1713 .collect()
1714 },
1715 )
1716 .elevation_1(cx)
1717 .p_1()
1718 .max_h(max_height)
1719 .occlude()
1720 .track_scroll(self.scroll_handle.clone())
1721 .with_width_from_item(
1722 self.actions
1723 .iter()
1724 .enumerate()
1725 .max_by_key(|(_, action)| match action {
1726 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1727 CodeActionsItem::CodeAction { action, .. } => {
1728 action.lsp_action.title.chars().count()
1729 }
1730 })
1731 .map(|(ix, _)| ix),
1732 )
1733 .with_sizing_behavior(ListSizingBehavior::Infer)
1734 .into_any_element();
1735
1736 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1737 ContextMenuOrigin::GutterIndicator(row)
1738 } else {
1739 ContextMenuOrigin::EditorPoint(cursor_position)
1740 };
1741
1742 (cursor_position, element)
1743 }
1744}
1745
1746#[derive(Debug)]
1747struct ActiveDiagnosticGroup {
1748 primary_range: Range<Anchor>,
1749 primary_message: String,
1750 group_id: usize,
1751 blocks: HashMap<CustomBlockId, Diagnostic>,
1752 is_valid: bool,
1753}
1754
1755#[derive(Serialize, Deserialize, Clone, Debug)]
1756pub struct ClipboardSelection {
1757 pub len: usize,
1758 pub is_entire_line: bool,
1759 pub first_line_indent: u32,
1760}
1761
1762#[derive(Debug)]
1763pub(crate) struct NavigationData {
1764 cursor_anchor: Anchor,
1765 cursor_position: Point,
1766 scroll_anchor: ScrollAnchor,
1767 scroll_top_row: u32,
1768}
1769
1770#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1771pub enum GotoDefinitionKind {
1772 Symbol,
1773 Declaration,
1774 Type,
1775 Implementation,
1776}
1777
1778#[derive(Debug, Clone)]
1779enum InlayHintRefreshReason {
1780 Toggle(bool),
1781 SettingsChange(InlayHintSettings),
1782 NewLinesShown,
1783 BufferEdited(HashSet<Arc<Language>>),
1784 RefreshRequested,
1785 ExcerptsRemoved(Vec<ExcerptId>),
1786}
1787
1788impl InlayHintRefreshReason {
1789 fn description(&self) -> &'static str {
1790 match self {
1791 Self::Toggle(_) => "toggle",
1792 Self::SettingsChange(_) => "settings change",
1793 Self::NewLinesShown => "new lines shown",
1794 Self::BufferEdited(_) => "buffer edited",
1795 Self::RefreshRequested => "refresh requested",
1796 Self::ExcerptsRemoved(_) => "excerpts removed",
1797 }
1798 }
1799}
1800
1801pub(crate) struct FocusedBlock {
1802 id: BlockId,
1803 focus_handle: WeakFocusHandle,
1804}
1805
1806#[derive(Clone)]
1807struct JumpData {
1808 excerpt_id: ExcerptId,
1809 position: Point,
1810 anchor: text::Anchor,
1811 path: Option<project::ProjectPath>,
1812 line_offset_from_top: u32,
1813}
1814
1815impl Editor {
1816 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1817 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1818 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1819 Self::new(
1820 EditorMode::SingleLine { auto_width: false },
1821 buffer,
1822 None,
1823 false,
1824 cx,
1825 )
1826 }
1827
1828 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1829 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1830 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1831 Self::new(EditorMode::Full, buffer, None, false, cx)
1832 }
1833
1834 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1835 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1836 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1837 Self::new(
1838 EditorMode::SingleLine { auto_width: true },
1839 buffer,
1840 None,
1841 false,
1842 cx,
1843 )
1844 }
1845
1846 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1847 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1848 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1849 Self::new(
1850 EditorMode::AutoHeight { max_lines },
1851 buffer,
1852 None,
1853 false,
1854 cx,
1855 )
1856 }
1857
1858 pub fn for_buffer(
1859 buffer: Model<Buffer>,
1860 project: Option<Model<Project>>,
1861 cx: &mut ViewContext<Self>,
1862 ) -> Self {
1863 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1864 Self::new(EditorMode::Full, buffer, project, false, cx)
1865 }
1866
1867 pub fn for_multibuffer(
1868 buffer: Model<MultiBuffer>,
1869 project: Option<Model<Project>>,
1870 show_excerpt_controls: bool,
1871 cx: &mut ViewContext<Self>,
1872 ) -> Self {
1873 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1874 }
1875
1876 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1877 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1878 let mut clone = Self::new(
1879 self.mode,
1880 self.buffer.clone(),
1881 self.project.clone(),
1882 show_excerpt_controls,
1883 cx,
1884 );
1885 self.display_map.update(cx, |display_map, cx| {
1886 let snapshot = display_map.snapshot(cx);
1887 clone.display_map.update(cx, |display_map, cx| {
1888 display_map.set_state(&snapshot, cx);
1889 });
1890 });
1891 clone.selections.clone_state(&self.selections);
1892 clone.scroll_manager.clone_state(&self.scroll_manager);
1893 clone.searchable = self.searchable;
1894 clone
1895 }
1896
1897 pub fn new(
1898 mode: EditorMode,
1899 buffer: Model<MultiBuffer>,
1900 project: Option<Model<Project>>,
1901 show_excerpt_controls: bool,
1902 cx: &mut ViewContext<Self>,
1903 ) -> Self {
1904 let style = cx.text_style();
1905 let font_size = style.font_size.to_pixels(cx.rem_size());
1906 let editor = cx.view().downgrade();
1907 let fold_placeholder = FoldPlaceholder {
1908 constrain_width: true,
1909 render: Arc::new(move |fold_id, fold_range, cx| {
1910 let editor = editor.clone();
1911 div()
1912 .id(fold_id)
1913 .bg(cx.theme().colors().ghost_element_background)
1914 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1915 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1916 .rounded_sm()
1917 .size_full()
1918 .cursor_pointer()
1919 .child("⋯")
1920 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1921 .on_click(move |_, cx| {
1922 editor
1923 .update(cx, |editor, cx| {
1924 editor.unfold_ranges(
1925 &[fold_range.start..fold_range.end],
1926 true,
1927 false,
1928 cx,
1929 );
1930 cx.stop_propagation();
1931 })
1932 .ok();
1933 })
1934 .into_any()
1935 }),
1936 merge_adjacent: true,
1937 ..Default::default()
1938 };
1939 let display_map = cx.new_model(|cx| {
1940 DisplayMap::new(
1941 buffer.clone(),
1942 style.font(),
1943 font_size,
1944 None,
1945 show_excerpt_controls,
1946 FILE_HEADER_HEIGHT,
1947 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1948 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1949 fold_placeholder,
1950 cx,
1951 )
1952 });
1953
1954 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1955
1956 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1957
1958 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1959 .then(|| language_settings::SoftWrap::None);
1960
1961 let mut project_subscriptions = Vec::new();
1962 if mode == EditorMode::Full {
1963 if let Some(project) = project.as_ref() {
1964 if buffer.read(cx).is_singleton() {
1965 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1966 cx.emit(EditorEvent::TitleChanged);
1967 }));
1968 }
1969 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1970 if let project::Event::RefreshInlayHints = event {
1971 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1972 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1973 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1974 let focus_handle = editor.focus_handle(cx);
1975 if focus_handle.is_focused(cx) {
1976 let snapshot = buffer.read(cx).snapshot();
1977 for (range, snippet) in snippet_edits {
1978 let editor_range =
1979 language::range_from_lsp(*range).to_offset(&snapshot);
1980 editor
1981 .insert_snippet(&[editor_range], snippet.clone(), cx)
1982 .ok();
1983 }
1984 }
1985 }
1986 }
1987 }));
1988 if let Some(task_inventory) = project
1989 .read(cx)
1990 .task_store()
1991 .read(cx)
1992 .task_inventory()
1993 .cloned()
1994 {
1995 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1996 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1997 }));
1998 }
1999 }
2000 }
2001
2002 let inlay_hint_settings = inlay_hint_settings(
2003 selections.newest_anchor().head(),
2004 &buffer.read(cx).snapshot(cx),
2005 cx,
2006 );
2007 let focus_handle = cx.focus_handle();
2008 cx.on_focus(&focus_handle, Self::handle_focus).detach();
2009 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
2010 .detach();
2011 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
2012 .detach();
2013 cx.on_blur(&focus_handle, Self::handle_blur).detach();
2014
2015 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
2016 Some(false)
2017 } else {
2018 None
2019 };
2020
2021 let mut code_action_providers = Vec::new();
2022 if let Some(project) = project.clone() {
2023 code_action_providers.push(Arc::new(project) as Arc<_>);
2024 }
2025
2026 let mut this = Self {
2027 focus_handle,
2028 show_cursor_when_unfocused: false,
2029 last_focused_descendant: None,
2030 buffer: buffer.clone(),
2031 display_map: display_map.clone(),
2032 selections,
2033 scroll_manager: ScrollManager::new(cx),
2034 columnar_selection_tail: None,
2035 add_selections_state: None,
2036 select_next_state: None,
2037 select_prev_state: None,
2038 selection_history: Default::default(),
2039 autoclose_regions: Default::default(),
2040 snippet_stack: Default::default(),
2041 select_larger_syntax_node_stack: Vec::new(),
2042 ime_transaction: Default::default(),
2043 active_diagnostics: None,
2044 soft_wrap_mode_override,
2045 completion_provider: project.clone().map(|project| Box::new(project) as _),
2046 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
2047 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
2048 project,
2049 blink_manager: blink_manager.clone(),
2050 show_local_selections: true,
2051 mode,
2052 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
2053 show_gutter: mode == EditorMode::Full,
2054 show_line_numbers: None,
2055 use_relative_line_numbers: None,
2056 show_git_diff_gutter: None,
2057 show_code_actions: None,
2058 show_runnables: None,
2059 show_wrap_guides: None,
2060 show_indent_guides,
2061 placeholder_text: None,
2062 highlight_order: 0,
2063 highlighted_rows: HashMap::default(),
2064 background_highlights: Default::default(),
2065 gutter_highlights: TreeMap::default(),
2066 scrollbar_marker_state: ScrollbarMarkerState::default(),
2067 active_indent_guides_state: ActiveIndentGuidesState::default(),
2068 nav_history: None,
2069 context_menu: RwLock::new(None),
2070 mouse_context_menu: None,
2071 hunk_controls_menu_handle: PopoverMenuHandle::default(),
2072 completion_tasks: Default::default(),
2073 signature_help_state: SignatureHelpState::default(),
2074 auto_signature_help: None,
2075 find_all_references_task_sources: Vec::new(),
2076 next_completion_id: 0,
2077 next_inlay_id: 0,
2078 code_action_providers,
2079 available_code_actions: Default::default(),
2080 code_actions_task: Default::default(),
2081 document_highlights_task: Default::default(),
2082 linked_editing_range_task: Default::default(),
2083 pending_rename: Default::default(),
2084 searchable: true,
2085 cursor_shape: EditorSettings::get_global(cx)
2086 .cursor_shape
2087 .unwrap_or_default(),
2088 current_line_highlight: None,
2089 autoindent_mode: Some(AutoindentMode::EachLine),
2090 collapse_matches: false,
2091 workspace: None,
2092 input_enabled: true,
2093 use_modal_editing: mode == EditorMode::Full,
2094 read_only: false,
2095 use_autoclose: true,
2096 use_auto_surround: true,
2097 auto_replace_emoji_shortcode: false,
2098 leader_peer_id: None,
2099 remote_id: None,
2100 hover_state: Default::default(),
2101 hovered_link_state: Default::default(),
2102 inline_completion_provider: None,
2103 active_inline_completion: None,
2104 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2105 expanded_hunks: ExpandedHunks::default(),
2106 gutter_hovered: false,
2107 pixel_position_of_newest_cursor: None,
2108 last_bounds: None,
2109 expect_bounds_change: None,
2110 gutter_dimensions: GutterDimensions::default(),
2111 style: None,
2112 show_cursor_names: false,
2113 hovered_cursors: Default::default(),
2114 next_editor_action_id: EditorActionId::default(),
2115 editor_actions: Rc::default(),
2116 show_inline_completions_override: None,
2117 enable_inline_completions: true,
2118 custom_context_menu: None,
2119 show_git_blame_gutter: false,
2120 show_git_blame_inline: false,
2121 show_selection_menu: None,
2122 show_git_blame_inline_delay_task: None,
2123 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2124 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2125 .session
2126 .restore_unsaved_buffers,
2127 blame: None,
2128 blame_subscription: None,
2129 tasks: Default::default(),
2130 _subscriptions: vec![
2131 cx.observe(&buffer, Self::on_buffer_changed),
2132 cx.subscribe(&buffer, Self::on_buffer_event),
2133 cx.observe(&display_map, Self::on_display_map_changed),
2134 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2135 cx.observe_global::<SettingsStore>(Self::settings_changed),
2136 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2137 cx.observe_window_activation(|editor, cx| {
2138 let active = cx.is_window_active();
2139 editor.blink_manager.update(cx, |blink_manager, cx| {
2140 if active {
2141 blink_manager.enable(cx);
2142 } else {
2143 blink_manager.disable(cx);
2144 }
2145 });
2146 }),
2147 ],
2148 tasks_update_task: None,
2149 linked_edit_ranges: Default::default(),
2150 previous_search_ranges: None,
2151 breadcrumb_header: None,
2152 focused_block: None,
2153 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2154 addons: HashMap::default(),
2155 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2156 text_style_refinement: None,
2157 };
2158 this.tasks_update_task = Some(this.refresh_runnables(cx));
2159 this._subscriptions.extend(project_subscriptions);
2160
2161 this.end_selection(cx);
2162 this.scroll_manager.show_scrollbar(cx);
2163
2164 if mode == EditorMode::Full {
2165 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2166 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2167
2168 if this.git_blame_inline_enabled {
2169 this.git_blame_inline_enabled = true;
2170 this.start_git_blame_inline(false, cx);
2171 }
2172 }
2173
2174 this.report_editor_event("open", None, cx);
2175 this
2176 }
2177
2178 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2179 self.mouse_context_menu
2180 .as_ref()
2181 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2182 }
2183
2184 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2185 let mut key_context = KeyContext::new_with_defaults();
2186 key_context.add("Editor");
2187 let mode = match self.mode {
2188 EditorMode::SingleLine { .. } => "single_line",
2189 EditorMode::AutoHeight { .. } => "auto_height",
2190 EditorMode::Full => "full",
2191 };
2192
2193 if EditorSettings::jupyter_enabled(cx) {
2194 key_context.add("jupyter");
2195 }
2196
2197 key_context.set("mode", mode);
2198 if self.pending_rename.is_some() {
2199 key_context.add("renaming");
2200 }
2201 if self.context_menu_visible() {
2202 match self.context_menu.read().as_ref() {
2203 Some(ContextMenu::Completions(_)) => {
2204 key_context.add("menu");
2205 key_context.add("showing_completions")
2206 }
2207 Some(ContextMenu::CodeActions(_)) => {
2208 key_context.add("menu");
2209 key_context.add("showing_code_actions")
2210 }
2211 None => {}
2212 }
2213 }
2214
2215 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2216 if !self.focus_handle(cx).contains_focused(cx)
2217 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2218 {
2219 for addon in self.addons.values() {
2220 addon.extend_key_context(&mut key_context, cx)
2221 }
2222 }
2223
2224 if let Some(extension) = self
2225 .buffer
2226 .read(cx)
2227 .as_singleton()
2228 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2229 {
2230 key_context.set("extension", extension.to_string());
2231 }
2232
2233 if self.has_active_inline_completion(cx) {
2234 key_context.add("copilot_suggestion");
2235 key_context.add("inline_completion");
2236 }
2237
2238 key_context
2239 }
2240
2241 pub fn new_file(
2242 workspace: &mut Workspace,
2243 _: &workspace::NewFile,
2244 cx: &mut ViewContext<Workspace>,
2245 ) {
2246 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2247 "Failed to create buffer",
2248 cx,
2249 |e, _| match e.error_code() {
2250 ErrorCode::RemoteUpgradeRequired => Some(format!(
2251 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2252 e.error_tag("required").unwrap_or("the latest version")
2253 )),
2254 _ => None,
2255 },
2256 );
2257 }
2258
2259 pub fn new_in_workspace(
2260 workspace: &mut Workspace,
2261 cx: &mut ViewContext<Workspace>,
2262 ) -> Task<Result<View<Editor>>> {
2263 let project = workspace.project().clone();
2264 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2265
2266 cx.spawn(|workspace, mut cx| async move {
2267 let buffer = create.await?;
2268 workspace.update(&mut cx, |workspace, cx| {
2269 let editor =
2270 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2271 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2272 editor
2273 })
2274 })
2275 }
2276
2277 fn new_file_vertical(
2278 workspace: &mut Workspace,
2279 _: &workspace::NewFileSplitVertical,
2280 cx: &mut ViewContext<Workspace>,
2281 ) {
2282 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2283 }
2284
2285 fn new_file_horizontal(
2286 workspace: &mut Workspace,
2287 _: &workspace::NewFileSplitHorizontal,
2288 cx: &mut ViewContext<Workspace>,
2289 ) {
2290 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2291 }
2292
2293 fn new_file_in_direction(
2294 workspace: &mut Workspace,
2295 direction: SplitDirection,
2296 cx: &mut ViewContext<Workspace>,
2297 ) {
2298 let project = workspace.project().clone();
2299 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2300
2301 cx.spawn(|workspace, mut cx| async move {
2302 let buffer = create.await?;
2303 workspace.update(&mut cx, move |workspace, cx| {
2304 workspace.split_item(
2305 direction,
2306 Box::new(
2307 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2308 ),
2309 cx,
2310 )
2311 })?;
2312 anyhow::Ok(())
2313 })
2314 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2315 ErrorCode::RemoteUpgradeRequired => Some(format!(
2316 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2317 e.error_tag("required").unwrap_or("the latest version")
2318 )),
2319 _ => None,
2320 });
2321 }
2322
2323 pub fn leader_peer_id(&self) -> Option<PeerId> {
2324 self.leader_peer_id
2325 }
2326
2327 pub fn buffer(&self) -> &Model<MultiBuffer> {
2328 &self.buffer
2329 }
2330
2331 pub fn workspace(&self) -> Option<View<Workspace>> {
2332 self.workspace.as_ref()?.0.upgrade()
2333 }
2334
2335 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2336 self.buffer().read(cx).title(cx)
2337 }
2338
2339 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2340 let git_blame_gutter_max_author_length = self
2341 .render_git_blame_gutter(cx)
2342 .then(|| {
2343 if let Some(blame) = self.blame.as_ref() {
2344 let max_author_length =
2345 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2346 Some(max_author_length)
2347 } else {
2348 None
2349 }
2350 })
2351 .flatten();
2352
2353 EditorSnapshot {
2354 mode: self.mode,
2355 show_gutter: self.show_gutter,
2356 show_line_numbers: self.show_line_numbers,
2357 show_git_diff_gutter: self.show_git_diff_gutter,
2358 show_code_actions: self.show_code_actions,
2359 show_runnables: self.show_runnables,
2360 git_blame_gutter_max_author_length,
2361 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2362 scroll_anchor: self.scroll_manager.anchor(),
2363 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2364 placeholder_text: self.placeholder_text.clone(),
2365 is_focused: self.focus_handle.is_focused(cx),
2366 current_line_highlight: self
2367 .current_line_highlight
2368 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2369 gutter_hovered: self.gutter_hovered,
2370 }
2371 }
2372
2373 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2374 self.buffer.read(cx).language_at(point, cx)
2375 }
2376
2377 pub fn file_at<T: ToOffset>(
2378 &self,
2379 point: T,
2380 cx: &AppContext,
2381 ) -> Option<Arc<dyn language::File>> {
2382 self.buffer.read(cx).read(cx).file_at(point).cloned()
2383 }
2384
2385 pub fn active_excerpt(
2386 &self,
2387 cx: &AppContext,
2388 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2389 self.buffer
2390 .read(cx)
2391 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2392 }
2393
2394 pub fn mode(&self) -> EditorMode {
2395 self.mode
2396 }
2397
2398 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2399 self.collaboration_hub.as_deref()
2400 }
2401
2402 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2403 self.collaboration_hub = Some(hub);
2404 }
2405
2406 pub fn set_custom_context_menu(
2407 &mut self,
2408 f: impl 'static
2409 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2410 ) {
2411 self.custom_context_menu = Some(Box::new(f))
2412 }
2413
2414 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2415 self.completion_provider = provider;
2416 }
2417
2418 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2419 self.semantics_provider.clone()
2420 }
2421
2422 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2423 self.semantics_provider = provider;
2424 }
2425
2426 pub fn set_inline_completion_provider<T>(
2427 &mut self,
2428 provider: Option<Model<T>>,
2429 cx: &mut ViewContext<Self>,
2430 ) where
2431 T: InlineCompletionProvider,
2432 {
2433 self.inline_completion_provider =
2434 provider.map(|provider| RegisteredInlineCompletionProvider {
2435 _subscription: cx.observe(&provider, |this, _, cx| {
2436 if this.focus_handle.is_focused(cx) {
2437 this.update_visible_inline_completion(cx);
2438 }
2439 }),
2440 provider: Arc::new(provider),
2441 });
2442 self.refresh_inline_completion(false, false, cx);
2443 }
2444
2445 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2446 self.placeholder_text.as_deref()
2447 }
2448
2449 pub fn set_placeholder_text(
2450 &mut self,
2451 placeholder_text: impl Into<Arc<str>>,
2452 cx: &mut ViewContext<Self>,
2453 ) {
2454 let placeholder_text = Some(placeholder_text.into());
2455 if self.placeholder_text != placeholder_text {
2456 self.placeholder_text = placeholder_text;
2457 cx.notify();
2458 }
2459 }
2460
2461 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2462 self.cursor_shape = cursor_shape;
2463
2464 // Disrupt blink for immediate user feedback that the cursor shape has changed
2465 self.blink_manager.update(cx, BlinkManager::show_cursor);
2466
2467 cx.notify();
2468 }
2469
2470 pub fn set_current_line_highlight(
2471 &mut self,
2472 current_line_highlight: Option<CurrentLineHighlight>,
2473 ) {
2474 self.current_line_highlight = current_line_highlight;
2475 }
2476
2477 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2478 self.collapse_matches = collapse_matches;
2479 }
2480
2481 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2482 if self.collapse_matches {
2483 return range.start..range.start;
2484 }
2485 range.clone()
2486 }
2487
2488 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2489 if self.display_map.read(cx).clip_at_line_ends != clip {
2490 self.display_map
2491 .update(cx, |map, _| map.clip_at_line_ends = clip);
2492 }
2493 }
2494
2495 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2496 self.input_enabled = input_enabled;
2497 }
2498
2499 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2500 self.enable_inline_completions = enabled;
2501 }
2502
2503 pub fn set_autoindent(&mut self, autoindent: bool) {
2504 if autoindent {
2505 self.autoindent_mode = Some(AutoindentMode::EachLine);
2506 } else {
2507 self.autoindent_mode = None;
2508 }
2509 }
2510
2511 pub fn read_only(&self, cx: &AppContext) -> bool {
2512 self.read_only || self.buffer.read(cx).read_only()
2513 }
2514
2515 pub fn set_read_only(&mut self, read_only: bool) {
2516 self.read_only = read_only;
2517 }
2518
2519 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2520 self.use_autoclose = autoclose;
2521 }
2522
2523 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2524 self.use_auto_surround = auto_surround;
2525 }
2526
2527 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2528 self.auto_replace_emoji_shortcode = auto_replace;
2529 }
2530
2531 pub fn toggle_inline_completions(
2532 &mut self,
2533 _: &ToggleInlineCompletions,
2534 cx: &mut ViewContext<Self>,
2535 ) {
2536 if self.show_inline_completions_override.is_some() {
2537 self.set_show_inline_completions(None, cx);
2538 } else {
2539 let cursor = self.selections.newest_anchor().head();
2540 if let Some((buffer, cursor_buffer_position)) =
2541 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2542 {
2543 let show_inline_completions =
2544 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2545 self.set_show_inline_completions(Some(show_inline_completions), cx);
2546 }
2547 }
2548 }
2549
2550 pub fn set_show_inline_completions(
2551 &mut self,
2552 show_inline_completions: Option<bool>,
2553 cx: &mut ViewContext<Self>,
2554 ) {
2555 self.show_inline_completions_override = show_inline_completions;
2556 self.refresh_inline_completion(false, true, cx);
2557 }
2558
2559 fn should_show_inline_completions(
2560 &self,
2561 buffer: &Model<Buffer>,
2562 buffer_position: language::Anchor,
2563 cx: &AppContext,
2564 ) -> bool {
2565 if !self.snippet_stack.is_empty() {
2566 return false;
2567 }
2568
2569 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
2570 return false;
2571 }
2572
2573 if let Some(provider) = self.inline_completion_provider() {
2574 if let Some(show_inline_completions) = self.show_inline_completions_override {
2575 show_inline_completions
2576 } else {
2577 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2578 }
2579 } else {
2580 false
2581 }
2582 }
2583
2584 fn inline_completions_disabled_in_scope(
2585 &self,
2586 buffer: &Model<Buffer>,
2587 buffer_position: language::Anchor,
2588 cx: &AppContext,
2589 ) -> bool {
2590 let snapshot = buffer.read(cx).snapshot();
2591 let settings = snapshot.settings_at(buffer_position, cx);
2592
2593 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
2594 return false;
2595 };
2596
2597 scope.override_name().map_or(false, |scope_name| {
2598 settings
2599 .inline_completions_disabled_in
2600 .iter()
2601 .any(|s| s == scope_name)
2602 })
2603 }
2604
2605 pub fn set_use_modal_editing(&mut self, to: bool) {
2606 self.use_modal_editing = to;
2607 }
2608
2609 pub fn use_modal_editing(&self) -> bool {
2610 self.use_modal_editing
2611 }
2612
2613 fn selections_did_change(
2614 &mut self,
2615 local: bool,
2616 old_cursor_position: &Anchor,
2617 show_completions: bool,
2618 cx: &mut ViewContext<Self>,
2619 ) {
2620 cx.invalidate_character_coordinates();
2621
2622 // Copy selections to primary selection buffer
2623 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
2624 if local {
2625 let selections = self.selections.all::<usize>(cx);
2626 let buffer_handle = self.buffer.read(cx).read(cx);
2627
2628 let mut text = String::new();
2629 for (index, selection) in selections.iter().enumerate() {
2630 let text_for_selection = buffer_handle
2631 .text_for_range(selection.start..selection.end)
2632 .collect::<String>();
2633
2634 text.push_str(&text_for_selection);
2635 if index != selections.len() - 1 {
2636 text.push('\n');
2637 }
2638 }
2639
2640 if !text.is_empty() {
2641 cx.write_to_primary(ClipboardItem::new_string(text));
2642 }
2643 }
2644
2645 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2646 self.buffer.update(cx, |buffer, cx| {
2647 buffer.set_active_selections(
2648 &self.selections.disjoint_anchors(),
2649 self.selections.line_mode,
2650 self.cursor_shape,
2651 cx,
2652 )
2653 });
2654 }
2655 let display_map = self
2656 .display_map
2657 .update(cx, |display_map, cx| display_map.snapshot(cx));
2658 let buffer = &display_map.buffer_snapshot;
2659 self.add_selections_state = None;
2660 self.select_next_state = None;
2661 self.select_prev_state = None;
2662 self.select_larger_syntax_node_stack.clear();
2663 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2664 self.snippet_stack
2665 .invalidate(&self.selections.disjoint_anchors(), buffer);
2666 self.take_rename(false, cx);
2667
2668 let new_cursor_position = self.selections.newest_anchor().head();
2669
2670 self.push_to_nav_history(
2671 *old_cursor_position,
2672 Some(new_cursor_position.to_point(buffer)),
2673 cx,
2674 );
2675
2676 if local {
2677 let new_cursor_position = self.selections.newest_anchor().head();
2678 let mut context_menu = self.context_menu.write();
2679 let completion_menu = match context_menu.as_ref() {
2680 Some(ContextMenu::Completions(menu)) => Some(menu),
2681
2682 _ => {
2683 *context_menu = None;
2684 None
2685 }
2686 };
2687
2688 if let Some(completion_menu) = completion_menu {
2689 let cursor_position = new_cursor_position.to_offset(buffer);
2690 let (word_range, kind) =
2691 buffer.surrounding_word(completion_menu.initial_position, true);
2692 if kind == Some(CharKind::Word)
2693 && word_range.to_inclusive().contains(&cursor_position)
2694 {
2695 let mut completion_menu = completion_menu.clone();
2696 drop(context_menu);
2697
2698 let query = Self::completion_query(buffer, cursor_position);
2699 cx.spawn(move |this, mut cx| async move {
2700 completion_menu
2701 .filter(query.as_deref(), cx.background_executor().clone())
2702 .await;
2703
2704 this.update(&mut cx, |this, cx| {
2705 let mut context_menu = this.context_menu.write();
2706 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2707 return;
2708 };
2709
2710 if menu.id > completion_menu.id {
2711 return;
2712 }
2713
2714 *context_menu = Some(ContextMenu::Completions(completion_menu));
2715 drop(context_menu);
2716 cx.notify();
2717 })
2718 })
2719 .detach();
2720
2721 if show_completions {
2722 self.show_completions(&ShowCompletions { trigger: None }, cx);
2723 }
2724 } else {
2725 drop(context_menu);
2726 self.hide_context_menu(cx);
2727 }
2728 } else {
2729 drop(context_menu);
2730 }
2731
2732 hide_hover(self, cx);
2733
2734 if old_cursor_position.to_display_point(&display_map).row()
2735 != new_cursor_position.to_display_point(&display_map).row()
2736 {
2737 self.available_code_actions.take();
2738 }
2739 self.refresh_code_actions(cx);
2740 self.refresh_document_highlights(cx);
2741 refresh_matching_bracket_highlights(self, cx);
2742 self.discard_inline_completion(false, cx);
2743 linked_editing_ranges::refresh_linked_ranges(self, cx);
2744 if self.git_blame_inline_enabled {
2745 self.start_inline_blame_timer(cx);
2746 }
2747 }
2748
2749 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2750 cx.emit(EditorEvent::SelectionsChanged { local });
2751
2752 if self.selections.disjoint_anchors().len() == 1 {
2753 cx.emit(SearchEvent::ActiveMatchChanged)
2754 }
2755 cx.notify();
2756 }
2757
2758 pub fn change_selections<R>(
2759 &mut self,
2760 autoscroll: Option<Autoscroll>,
2761 cx: &mut ViewContext<Self>,
2762 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2763 ) -> R {
2764 self.change_selections_inner(autoscroll, true, cx, change)
2765 }
2766
2767 pub fn change_selections_inner<R>(
2768 &mut self,
2769 autoscroll: Option<Autoscroll>,
2770 request_completions: bool,
2771 cx: &mut ViewContext<Self>,
2772 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2773 ) -> R {
2774 let old_cursor_position = self.selections.newest_anchor().head();
2775 self.push_to_selection_history();
2776
2777 let (changed, result) = self.selections.change_with(cx, change);
2778
2779 if changed {
2780 if let Some(autoscroll) = autoscroll {
2781 self.request_autoscroll(autoscroll, cx);
2782 }
2783 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2784
2785 if self.should_open_signature_help_automatically(
2786 &old_cursor_position,
2787 self.signature_help_state.backspace_pressed(),
2788 cx,
2789 ) {
2790 self.show_signature_help(&ShowSignatureHelp, cx);
2791 }
2792 self.signature_help_state.set_backspace_pressed(false);
2793 }
2794
2795 result
2796 }
2797
2798 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2799 where
2800 I: IntoIterator<Item = (Range<S>, T)>,
2801 S: ToOffset,
2802 T: Into<Arc<str>>,
2803 {
2804 if self.read_only(cx) {
2805 return;
2806 }
2807
2808 self.buffer
2809 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2810 }
2811
2812 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2813 where
2814 I: IntoIterator<Item = (Range<S>, T)>,
2815 S: ToOffset,
2816 T: Into<Arc<str>>,
2817 {
2818 if self.read_only(cx) {
2819 return;
2820 }
2821
2822 self.buffer.update(cx, |buffer, cx| {
2823 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2824 });
2825 }
2826
2827 pub fn edit_with_block_indent<I, S, T>(
2828 &mut self,
2829 edits: I,
2830 original_indent_columns: Vec<u32>,
2831 cx: &mut ViewContext<Self>,
2832 ) where
2833 I: IntoIterator<Item = (Range<S>, T)>,
2834 S: ToOffset,
2835 T: Into<Arc<str>>,
2836 {
2837 if self.read_only(cx) {
2838 return;
2839 }
2840
2841 self.buffer.update(cx, |buffer, cx| {
2842 buffer.edit(
2843 edits,
2844 Some(AutoindentMode::Block {
2845 original_indent_columns,
2846 }),
2847 cx,
2848 )
2849 });
2850 }
2851
2852 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2853 self.hide_context_menu(cx);
2854
2855 match phase {
2856 SelectPhase::Begin {
2857 position,
2858 add,
2859 click_count,
2860 } => self.begin_selection(position, add, click_count, cx),
2861 SelectPhase::BeginColumnar {
2862 position,
2863 goal_column,
2864 reset,
2865 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2866 SelectPhase::Extend {
2867 position,
2868 click_count,
2869 } => self.extend_selection(position, click_count, cx),
2870 SelectPhase::Update {
2871 position,
2872 goal_column,
2873 scroll_delta,
2874 } => self.update_selection(position, goal_column, scroll_delta, cx),
2875 SelectPhase::End => self.end_selection(cx),
2876 }
2877 }
2878
2879 fn extend_selection(
2880 &mut self,
2881 position: DisplayPoint,
2882 click_count: usize,
2883 cx: &mut ViewContext<Self>,
2884 ) {
2885 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2886 let tail = self.selections.newest::<usize>(cx).tail();
2887 self.begin_selection(position, false, click_count, cx);
2888
2889 let position = position.to_offset(&display_map, Bias::Left);
2890 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2891
2892 let mut pending_selection = self
2893 .selections
2894 .pending_anchor()
2895 .expect("extend_selection not called with pending selection");
2896 if position >= tail {
2897 pending_selection.start = tail_anchor;
2898 } else {
2899 pending_selection.end = tail_anchor;
2900 pending_selection.reversed = true;
2901 }
2902
2903 let mut pending_mode = self.selections.pending_mode().unwrap();
2904 match &mut pending_mode {
2905 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2906 _ => {}
2907 }
2908
2909 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2910 s.set_pending(pending_selection, pending_mode)
2911 });
2912 }
2913
2914 fn begin_selection(
2915 &mut self,
2916 position: DisplayPoint,
2917 add: bool,
2918 click_count: usize,
2919 cx: &mut ViewContext<Self>,
2920 ) {
2921 if !self.focus_handle.is_focused(cx) {
2922 self.last_focused_descendant = None;
2923 cx.focus(&self.focus_handle);
2924 }
2925
2926 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2927 let buffer = &display_map.buffer_snapshot;
2928 let newest_selection = self.selections.newest_anchor().clone();
2929 let position = display_map.clip_point(position, Bias::Left);
2930
2931 let start;
2932 let end;
2933 let mode;
2934 let mut auto_scroll;
2935 match click_count {
2936 1 => {
2937 start = buffer.anchor_before(position.to_point(&display_map));
2938 end = start;
2939 mode = SelectMode::Character;
2940 auto_scroll = true;
2941 }
2942 2 => {
2943 let range = movement::surrounding_word(&display_map, position);
2944 start = buffer.anchor_before(range.start.to_point(&display_map));
2945 end = buffer.anchor_before(range.end.to_point(&display_map));
2946 mode = SelectMode::Word(start..end);
2947 auto_scroll = true;
2948 }
2949 3 => {
2950 let position = display_map
2951 .clip_point(position, Bias::Left)
2952 .to_point(&display_map);
2953 let line_start = display_map.prev_line_boundary(position).0;
2954 let next_line_start = buffer.clip_point(
2955 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2956 Bias::Left,
2957 );
2958 start = buffer.anchor_before(line_start);
2959 end = buffer.anchor_before(next_line_start);
2960 mode = SelectMode::Line(start..end);
2961 auto_scroll = true;
2962 }
2963 _ => {
2964 start = buffer.anchor_before(0);
2965 end = buffer.anchor_before(buffer.len());
2966 mode = SelectMode::All;
2967 auto_scroll = false;
2968 }
2969 }
2970 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2971
2972 let point_to_delete: Option<usize> = {
2973 let selected_points: Vec<Selection<Point>> =
2974 self.selections.disjoint_in_range(start..end, cx);
2975
2976 if !add || click_count > 1 {
2977 None
2978 } else if !selected_points.is_empty() {
2979 Some(selected_points[0].id)
2980 } else {
2981 let clicked_point_already_selected =
2982 self.selections.disjoint.iter().find(|selection| {
2983 selection.start.to_point(buffer) == start.to_point(buffer)
2984 || selection.end.to_point(buffer) == end.to_point(buffer)
2985 });
2986
2987 clicked_point_already_selected.map(|selection| selection.id)
2988 }
2989 };
2990
2991 let selections_count = self.selections.count();
2992
2993 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2994 if let Some(point_to_delete) = point_to_delete {
2995 s.delete(point_to_delete);
2996
2997 if selections_count == 1 {
2998 s.set_pending_anchor_range(start..end, mode);
2999 }
3000 } else {
3001 if !add {
3002 s.clear_disjoint();
3003 } else if click_count > 1 {
3004 s.delete(newest_selection.id)
3005 }
3006
3007 s.set_pending_anchor_range(start..end, mode);
3008 }
3009 });
3010 }
3011
3012 fn begin_columnar_selection(
3013 &mut self,
3014 position: DisplayPoint,
3015 goal_column: u32,
3016 reset: bool,
3017 cx: &mut ViewContext<Self>,
3018 ) {
3019 if !self.focus_handle.is_focused(cx) {
3020 self.last_focused_descendant = None;
3021 cx.focus(&self.focus_handle);
3022 }
3023
3024 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3025
3026 if reset {
3027 let pointer_position = display_map
3028 .buffer_snapshot
3029 .anchor_before(position.to_point(&display_map));
3030
3031 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
3032 s.clear_disjoint();
3033 s.set_pending_anchor_range(
3034 pointer_position..pointer_position,
3035 SelectMode::Character,
3036 );
3037 });
3038 }
3039
3040 let tail = self.selections.newest::<Point>(cx).tail();
3041 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
3042
3043 if !reset {
3044 self.select_columns(
3045 tail.to_display_point(&display_map),
3046 position,
3047 goal_column,
3048 &display_map,
3049 cx,
3050 );
3051 }
3052 }
3053
3054 fn update_selection(
3055 &mut self,
3056 position: DisplayPoint,
3057 goal_column: u32,
3058 scroll_delta: gpui::Point<f32>,
3059 cx: &mut ViewContext<Self>,
3060 ) {
3061 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3062
3063 if let Some(tail) = self.columnar_selection_tail.as_ref() {
3064 let tail = tail.to_display_point(&display_map);
3065 self.select_columns(tail, position, goal_column, &display_map, cx);
3066 } else if let Some(mut pending) = self.selections.pending_anchor() {
3067 let buffer = self.buffer.read(cx).snapshot(cx);
3068 let head;
3069 let tail;
3070 let mode = self.selections.pending_mode().unwrap();
3071 match &mode {
3072 SelectMode::Character => {
3073 head = position.to_point(&display_map);
3074 tail = pending.tail().to_point(&buffer);
3075 }
3076 SelectMode::Word(original_range) => {
3077 let original_display_range = original_range.start.to_display_point(&display_map)
3078 ..original_range.end.to_display_point(&display_map);
3079 let original_buffer_range = original_display_range.start.to_point(&display_map)
3080 ..original_display_range.end.to_point(&display_map);
3081 if movement::is_inside_word(&display_map, position)
3082 || original_display_range.contains(&position)
3083 {
3084 let word_range = movement::surrounding_word(&display_map, position);
3085 if word_range.start < original_display_range.start {
3086 head = word_range.start.to_point(&display_map);
3087 } else {
3088 head = word_range.end.to_point(&display_map);
3089 }
3090 } else {
3091 head = position.to_point(&display_map);
3092 }
3093
3094 if head <= original_buffer_range.start {
3095 tail = original_buffer_range.end;
3096 } else {
3097 tail = original_buffer_range.start;
3098 }
3099 }
3100 SelectMode::Line(original_range) => {
3101 let original_range = original_range.to_point(&display_map.buffer_snapshot);
3102
3103 let position = display_map
3104 .clip_point(position, Bias::Left)
3105 .to_point(&display_map);
3106 let line_start = display_map.prev_line_boundary(position).0;
3107 let next_line_start = buffer.clip_point(
3108 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3109 Bias::Left,
3110 );
3111
3112 if line_start < original_range.start {
3113 head = line_start
3114 } else {
3115 head = next_line_start
3116 }
3117
3118 if head <= original_range.start {
3119 tail = original_range.end;
3120 } else {
3121 tail = original_range.start;
3122 }
3123 }
3124 SelectMode::All => {
3125 return;
3126 }
3127 };
3128
3129 if head < tail {
3130 pending.start = buffer.anchor_before(head);
3131 pending.end = buffer.anchor_before(tail);
3132 pending.reversed = true;
3133 } else {
3134 pending.start = buffer.anchor_before(tail);
3135 pending.end = buffer.anchor_before(head);
3136 pending.reversed = false;
3137 }
3138
3139 self.change_selections(None, cx, |s| {
3140 s.set_pending(pending, mode);
3141 });
3142 } else {
3143 log::error!("update_selection dispatched with no pending selection");
3144 return;
3145 }
3146
3147 self.apply_scroll_delta(scroll_delta, cx);
3148 cx.notify();
3149 }
3150
3151 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3152 self.columnar_selection_tail.take();
3153 if self.selections.pending_anchor().is_some() {
3154 let selections = self.selections.all::<usize>(cx);
3155 self.change_selections(None, cx, |s| {
3156 s.select(selections);
3157 s.clear_pending();
3158 });
3159 }
3160 }
3161
3162 fn select_columns(
3163 &mut self,
3164 tail: DisplayPoint,
3165 head: DisplayPoint,
3166 goal_column: u32,
3167 display_map: &DisplaySnapshot,
3168 cx: &mut ViewContext<Self>,
3169 ) {
3170 let start_row = cmp::min(tail.row(), head.row());
3171 let end_row = cmp::max(tail.row(), head.row());
3172 let start_column = cmp::min(tail.column(), goal_column);
3173 let end_column = cmp::max(tail.column(), goal_column);
3174 let reversed = start_column < tail.column();
3175
3176 let selection_ranges = (start_row.0..=end_row.0)
3177 .map(DisplayRow)
3178 .filter_map(|row| {
3179 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3180 let start = display_map
3181 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3182 .to_point(display_map);
3183 let end = display_map
3184 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3185 .to_point(display_map);
3186 if reversed {
3187 Some(end..start)
3188 } else {
3189 Some(start..end)
3190 }
3191 } else {
3192 None
3193 }
3194 })
3195 .collect::<Vec<_>>();
3196
3197 self.change_selections(None, cx, |s| {
3198 s.select_ranges(selection_ranges);
3199 });
3200 cx.notify();
3201 }
3202
3203 pub fn has_pending_nonempty_selection(&self) -> bool {
3204 let pending_nonempty_selection = match self.selections.pending_anchor() {
3205 Some(Selection { start, end, .. }) => start != end,
3206 None => false,
3207 };
3208
3209 pending_nonempty_selection
3210 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3211 }
3212
3213 pub fn has_pending_selection(&self) -> bool {
3214 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3215 }
3216
3217 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3218 if self.clear_expanded_diff_hunks(cx) {
3219 cx.notify();
3220 return;
3221 }
3222 if self.dismiss_menus_and_popups(true, cx) {
3223 return;
3224 }
3225
3226 if self.mode == EditorMode::Full
3227 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3228 {
3229 return;
3230 }
3231
3232 cx.propagate();
3233 }
3234
3235 pub fn dismiss_menus_and_popups(
3236 &mut self,
3237 should_report_inline_completion_event: bool,
3238 cx: &mut ViewContext<Self>,
3239 ) -> bool {
3240 if self.take_rename(false, cx).is_some() {
3241 return true;
3242 }
3243
3244 if hide_hover(self, cx) {
3245 return true;
3246 }
3247
3248 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3249 return true;
3250 }
3251
3252 if self.hide_context_menu(cx).is_some() {
3253 return true;
3254 }
3255
3256 if self.mouse_context_menu.take().is_some() {
3257 return true;
3258 }
3259
3260 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3261 return true;
3262 }
3263
3264 if self.snippet_stack.pop().is_some() {
3265 return true;
3266 }
3267
3268 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3269 self.dismiss_diagnostics(cx);
3270 return true;
3271 }
3272
3273 false
3274 }
3275
3276 fn linked_editing_ranges_for(
3277 &self,
3278 selection: Range<text::Anchor>,
3279 cx: &AppContext,
3280 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3281 if self.linked_edit_ranges.is_empty() {
3282 return None;
3283 }
3284 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3285 selection.end.buffer_id.and_then(|end_buffer_id| {
3286 if selection.start.buffer_id != Some(end_buffer_id) {
3287 return None;
3288 }
3289 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3290 let snapshot = buffer.read(cx).snapshot();
3291 self.linked_edit_ranges
3292 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3293 .map(|ranges| (ranges, snapshot, buffer))
3294 })?;
3295 use text::ToOffset as TO;
3296 // find offset from the start of current range to current cursor position
3297 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3298
3299 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3300 let start_difference = start_offset - start_byte_offset;
3301 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3302 let end_difference = end_offset - start_byte_offset;
3303 // Current range has associated linked ranges.
3304 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3305 for range in linked_ranges.iter() {
3306 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3307 let end_offset = start_offset + end_difference;
3308 let start_offset = start_offset + start_difference;
3309 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3310 continue;
3311 }
3312 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3313 if s.start.buffer_id != selection.start.buffer_id
3314 || s.end.buffer_id != selection.end.buffer_id
3315 {
3316 return false;
3317 }
3318 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3319 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3320 }) {
3321 continue;
3322 }
3323 let start = buffer_snapshot.anchor_after(start_offset);
3324 let end = buffer_snapshot.anchor_after(end_offset);
3325 linked_edits
3326 .entry(buffer.clone())
3327 .or_default()
3328 .push(start..end);
3329 }
3330 Some(linked_edits)
3331 }
3332
3333 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3334 let text: Arc<str> = text.into();
3335
3336 if self.read_only(cx) {
3337 return;
3338 }
3339
3340 let selections = self.selections.all_adjusted(cx);
3341 let mut bracket_inserted = false;
3342 let mut edits = Vec::new();
3343 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3344 let mut new_selections = Vec::with_capacity(selections.len());
3345 let mut new_autoclose_regions = Vec::new();
3346 let snapshot = self.buffer.read(cx).read(cx);
3347
3348 for (selection, autoclose_region) in
3349 self.selections_with_autoclose_regions(selections, &snapshot)
3350 {
3351 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3352 // Determine if the inserted text matches the opening or closing
3353 // bracket of any of this language's bracket pairs.
3354 let mut bracket_pair = None;
3355 let mut is_bracket_pair_start = false;
3356 let mut is_bracket_pair_end = false;
3357 if !text.is_empty() {
3358 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3359 // and they are removing the character that triggered IME popup.
3360 for (pair, enabled) in scope.brackets() {
3361 if !pair.close && !pair.surround {
3362 continue;
3363 }
3364
3365 if enabled && pair.start.ends_with(text.as_ref()) {
3366 let prefix_len = pair.start.len() - text.len();
3367 let preceding_text_matches_prefix = prefix_len == 0
3368 || (selection.start.column >= (prefix_len as u32)
3369 && snapshot.contains_str_at(
3370 Point::new(
3371 selection.start.row,
3372 selection.start.column - (prefix_len as u32),
3373 ),
3374 &pair.start[..prefix_len],
3375 ));
3376 if preceding_text_matches_prefix {
3377 bracket_pair = Some(pair.clone());
3378 is_bracket_pair_start = true;
3379 break;
3380 }
3381 }
3382 if pair.end.as_str() == text.as_ref() {
3383 bracket_pair = Some(pair.clone());
3384 is_bracket_pair_end = true;
3385 break;
3386 }
3387 }
3388 }
3389
3390 if let Some(bracket_pair) = bracket_pair {
3391 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3392 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3393 let auto_surround =
3394 self.use_auto_surround && snapshot_settings.use_auto_surround;
3395 if selection.is_empty() {
3396 if is_bracket_pair_start {
3397 // If the inserted text is a suffix of an opening bracket and the
3398 // selection is preceded by the rest of the opening bracket, then
3399 // insert the closing bracket.
3400 let following_text_allows_autoclose = snapshot
3401 .chars_at(selection.start)
3402 .next()
3403 .map_or(true, |c| scope.should_autoclose_before(c));
3404
3405 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3406 && bracket_pair.start.len() == 1
3407 {
3408 let target = bracket_pair.start.chars().next().unwrap();
3409 let current_line_count = snapshot
3410 .reversed_chars_at(selection.start)
3411 .take_while(|&c| c != '\n')
3412 .filter(|&c| c == target)
3413 .count();
3414 current_line_count % 2 == 1
3415 } else {
3416 false
3417 };
3418
3419 if autoclose
3420 && bracket_pair.close
3421 && following_text_allows_autoclose
3422 && !is_closing_quote
3423 {
3424 let anchor = snapshot.anchor_before(selection.end);
3425 new_selections.push((selection.map(|_| anchor), text.len()));
3426 new_autoclose_regions.push((
3427 anchor,
3428 text.len(),
3429 selection.id,
3430 bracket_pair.clone(),
3431 ));
3432 edits.push((
3433 selection.range(),
3434 format!("{}{}", text, bracket_pair.end).into(),
3435 ));
3436 bracket_inserted = true;
3437 continue;
3438 }
3439 }
3440
3441 if let Some(region) = autoclose_region {
3442 // If the selection is followed by an auto-inserted closing bracket,
3443 // then don't insert that closing bracket again; just move the selection
3444 // past the closing bracket.
3445 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3446 && text.as_ref() == region.pair.end.as_str();
3447 if should_skip {
3448 let anchor = snapshot.anchor_after(selection.end);
3449 new_selections
3450 .push((selection.map(|_| anchor), region.pair.end.len()));
3451 continue;
3452 }
3453 }
3454
3455 let always_treat_brackets_as_autoclosed = snapshot
3456 .settings_at(selection.start, cx)
3457 .always_treat_brackets_as_autoclosed;
3458 if always_treat_brackets_as_autoclosed
3459 && is_bracket_pair_end
3460 && snapshot.contains_str_at(selection.end, text.as_ref())
3461 {
3462 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3463 // and the inserted text is a closing bracket and the selection is followed
3464 // by the closing bracket then move the selection past the closing bracket.
3465 let anchor = snapshot.anchor_after(selection.end);
3466 new_selections.push((selection.map(|_| anchor), text.len()));
3467 continue;
3468 }
3469 }
3470 // If an opening bracket is 1 character long and is typed while
3471 // text is selected, then surround that text with the bracket pair.
3472 else if auto_surround
3473 && bracket_pair.surround
3474 && is_bracket_pair_start
3475 && bracket_pair.start.chars().count() == 1
3476 {
3477 edits.push((selection.start..selection.start, text.clone()));
3478 edits.push((
3479 selection.end..selection.end,
3480 bracket_pair.end.as_str().into(),
3481 ));
3482 bracket_inserted = true;
3483 new_selections.push((
3484 Selection {
3485 id: selection.id,
3486 start: snapshot.anchor_after(selection.start),
3487 end: snapshot.anchor_before(selection.end),
3488 reversed: selection.reversed,
3489 goal: selection.goal,
3490 },
3491 0,
3492 ));
3493 continue;
3494 }
3495 }
3496 }
3497
3498 if self.auto_replace_emoji_shortcode
3499 && selection.is_empty()
3500 && text.as_ref().ends_with(':')
3501 {
3502 if let Some(possible_emoji_short_code) =
3503 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3504 {
3505 if !possible_emoji_short_code.is_empty() {
3506 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3507 let emoji_shortcode_start = Point::new(
3508 selection.start.row,
3509 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3510 );
3511
3512 // Remove shortcode from buffer
3513 edits.push((
3514 emoji_shortcode_start..selection.start,
3515 "".to_string().into(),
3516 ));
3517 new_selections.push((
3518 Selection {
3519 id: selection.id,
3520 start: snapshot.anchor_after(emoji_shortcode_start),
3521 end: snapshot.anchor_before(selection.start),
3522 reversed: selection.reversed,
3523 goal: selection.goal,
3524 },
3525 0,
3526 ));
3527
3528 // Insert emoji
3529 let selection_start_anchor = snapshot.anchor_after(selection.start);
3530 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3531 edits.push((selection.start..selection.end, emoji.to_string().into()));
3532
3533 continue;
3534 }
3535 }
3536 }
3537 }
3538
3539 // If not handling any auto-close operation, then just replace the selected
3540 // text with the given input and move the selection to the end of the
3541 // newly inserted text.
3542 let anchor = snapshot.anchor_after(selection.end);
3543 if !self.linked_edit_ranges.is_empty() {
3544 let start_anchor = snapshot.anchor_before(selection.start);
3545
3546 let is_word_char = text.chars().next().map_or(true, |char| {
3547 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3548 classifier.is_word(char)
3549 });
3550
3551 if is_word_char {
3552 if let Some(ranges) = self
3553 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3554 {
3555 for (buffer, edits) in ranges {
3556 linked_edits
3557 .entry(buffer.clone())
3558 .or_default()
3559 .extend(edits.into_iter().map(|range| (range, text.clone())));
3560 }
3561 }
3562 }
3563 }
3564
3565 new_selections.push((selection.map(|_| anchor), 0));
3566 edits.push((selection.start..selection.end, text.clone()));
3567 }
3568
3569 drop(snapshot);
3570
3571 self.transact(cx, |this, cx| {
3572 this.buffer.update(cx, |buffer, cx| {
3573 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3574 });
3575 for (buffer, edits) in linked_edits {
3576 buffer.update(cx, |buffer, cx| {
3577 let snapshot = buffer.snapshot();
3578 let edits = edits
3579 .into_iter()
3580 .map(|(range, text)| {
3581 use text::ToPoint as TP;
3582 let end_point = TP::to_point(&range.end, &snapshot);
3583 let start_point = TP::to_point(&range.start, &snapshot);
3584 (start_point..end_point, text)
3585 })
3586 .sorted_by_key(|(range, _)| range.start)
3587 .collect::<Vec<_>>();
3588 buffer.edit(edits, None, cx);
3589 })
3590 }
3591 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3592 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3593 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
3594 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
3595 .zip(new_selection_deltas)
3596 .map(|(selection, delta)| Selection {
3597 id: selection.id,
3598 start: selection.start + delta,
3599 end: selection.end + delta,
3600 reversed: selection.reversed,
3601 goal: SelectionGoal::None,
3602 })
3603 .collect::<Vec<_>>();
3604
3605 let mut i = 0;
3606 for (position, delta, selection_id, pair) in new_autoclose_regions {
3607 let position = position.to_offset(&map.buffer_snapshot) + delta;
3608 let start = map.buffer_snapshot.anchor_before(position);
3609 let end = map.buffer_snapshot.anchor_after(position);
3610 while let Some(existing_state) = this.autoclose_regions.get(i) {
3611 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
3612 Ordering::Less => i += 1,
3613 Ordering::Greater => break,
3614 Ordering::Equal => {
3615 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
3616 Ordering::Less => i += 1,
3617 Ordering::Equal => break,
3618 Ordering::Greater => break,
3619 }
3620 }
3621 }
3622 }
3623 this.autoclose_regions.insert(
3624 i,
3625 AutocloseRegion {
3626 selection_id,
3627 range: start..end,
3628 pair,
3629 },
3630 );
3631 }
3632
3633 let had_active_inline_completion = this.has_active_inline_completion(cx);
3634 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3635 s.select(new_selections)
3636 });
3637
3638 if !bracket_inserted {
3639 if let Some(on_type_format_task) =
3640 this.trigger_on_type_formatting(text.to_string(), cx)
3641 {
3642 on_type_format_task.detach_and_log_err(cx);
3643 }
3644 }
3645
3646 let editor_settings = EditorSettings::get_global(cx);
3647 if bracket_inserted
3648 && (editor_settings.auto_signature_help
3649 || editor_settings.show_signature_help_after_edits)
3650 {
3651 this.show_signature_help(&ShowSignatureHelp, cx);
3652 }
3653
3654 let trigger_in_words = !had_active_inline_completion;
3655 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3656 linked_editing_ranges::refresh_linked_ranges(this, cx);
3657 this.refresh_inline_completion(true, false, cx);
3658 });
3659 }
3660
3661 fn find_possible_emoji_shortcode_at_position(
3662 snapshot: &MultiBufferSnapshot,
3663 position: Point,
3664 ) -> Option<String> {
3665 let mut chars = Vec::new();
3666 let mut found_colon = false;
3667 for char in snapshot.reversed_chars_at(position).take(100) {
3668 // Found a possible emoji shortcode in the middle of the buffer
3669 if found_colon {
3670 if char.is_whitespace() {
3671 chars.reverse();
3672 return Some(chars.iter().collect());
3673 }
3674 // If the previous character is not a whitespace, we are in the middle of a word
3675 // and we only want to complete the shortcode if the word is made up of other emojis
3676 let mut containing_word = String::new();
3677 for ch in snapshot
3678 .reversed_chars_at(position)
3679 .skip(chars.len() + 1)
3680 .take(100)
3681 {
3682 if ch.is_whitespace() {
3683 break;
3684 }
3685 containing_word.push(ch);
3686 }
3687 let containing_word = containing_word.chars().rev().collect::<String>();
3688 if util::word_consists_of_emojis(containing_word.as_str()) {
3689 chars.reverse();
3690 return Some(chars.iter().collect());
3691 }
3692 }
3693
3694 if char.is_whitespace() || !char.is_ascii() {
3695 return None;
3696 }
3697 if char == ':' {
3698 found_colon = true;
3699 } else {
3700 chars.push(char);
3701 }
3702 }
3703 // Found a possible emoji shortcode at the beginning of the buffer
3704 chars.reverse();
3705 Some(chars.iter().collect())
3706 }
3707
3708 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3709 self.transact(cx, |this, cx| {
3710 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3711 let selections = this.selections.all::<usize>(cx);
3712 let multi_buffer = this.buffer.read(cx);
3713 let buffer = multi_buffer.snapshot(cx);
3714 selections
3715 .iter()
3716 .map(|selection| {
3717 let start_point = selection.start.to_point(&buffer);
3718 let mut indent =
3719 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3720 indent.len = cmp::min(indent.len, start_point.column);
3721 let start = selection.start;
3722 let end = selection.end;
3723 let selection_is_empty = start == end;
3724 let language_scope = buffer.language_scope_at(start);
3725 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3726 &language_scope
3727 {
3728 let leading_whitespace_len = buffer
3729 .reversed_chars_at(start)
3730 .take_while(|c| c.is_whitespace() && *c != '\n')
3731 .map(|c| c.len_utf8())
3732 .sum::<usize>();
3733
3734 let trailing_whitespace_len = buffer
3735 .chars_at(end)
3736 .take_while(|c| c.is_whitespace() && *c != '\n')
3737 .map(|c| c.len_utf8())
3738 .sum::<usize>();
3739
3740 let insert_extra_newline =
3741 language.brackets().any(|(pair, enabled)| {
3742 let pair_start = pair.start.trim_end();
3743 let pair_end = pair.end.trim_start();
3744
3745 enabled
3746 && pair.newline
3747 && buffer.contains_str_at(
3748 end + trailing_whitespace_len,
3749 pair_end,
3750 )
3751 && buffer.contains_str_at(
3752 (start - leading_whitespace_len)
3753 .saturating_sub(pair_start.len()),
3754 pair_start,
3755 )
3756 });
3757
3758 // Comment extension on newline is allowed only for cursor selections
3759 let comment_delimiter = maybe!({
3760 if !selection_is_empty {
3761 return None;
3762 }
3763
3764 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3765 return None;
3766 }
3767
3768 let delimiters = language.line_comment_prefixes();
3769 let max_len_of_delimiter =
3770 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3771 let (snapshot, range) =
3772 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3773
3774 let mut index_of_first_non_whitespace = 0;
3775 let comment_candidate = snapshot
3776 .chars_for_range(range)
3777 .skip_while(|c| {
3778 let should_skip = c.is_whitespace();
3779 if should_skip {
3780 index_of_first_non_whitespace += 1;
3781 }
3782 should_skip
3783 })
3784 .take(max_len_of_delimiter)
3785 .collect::<String>();
3786 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3787 comment_candidate.starts_with(comment_prefix.as_ref())
3788 })?;
3789 let cursor_is_placed_after_comment_marker =
3790 index_of_first_non_whitespace + comment_prefix.len()
3791 <= start_point.column as usize;
3792 if cursor_is_placed_after_comment_marker {
3793 Some(comment_prefix.clone())
3794 } else {
3795 None
3796 }
3797 });
3798 (comment_delimiter, insert_extra_newline)
3799 } else {
3800 (None, false)
3801 };
3802
3803 let capacity_for_delimiter = comment_delimiter
3804 .as_deref()
3805 .map(str::len)
3806 .unwrap_or_default();
3807 let mut new_text =
3808 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3809 new_text.push('\n');
3810 new_text.extend(indent.chars());
3811 if let Some(delimiter) = &comment_delimiter {
3812 new_text.push_str(delimiter);
3813 }
3814 if insert_extra_newline {
3815 new_text = new_text.repeat(2);
3816 }
3817
3818 let anchor = buffer.anchor_after(end);
3819 let new_selection = selection.map(|_| anchor);
3820 (
3821 (start..end, new_text),
3822 (insert_extra_newline, new_selection),
3823 )
3824 })
3825 .unzip()
3826 };
3827
3828 this.edit_with_autoindent(edits, cx);
3829 let buffer = this.buffer.read(cx).snapshot(cx);
3830 let new_selections = selection_fixup_info
3831 .into_iter()
3832 .map(|(extra_newline_inserted, new_selection)| {
3833 let mut cursor = new_selection.end.to_point(&buffer);
3834 if extra_newline_inserted {
3835 cursor.row -= 1;
3836 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3837 }
3838 new_selection.map(|_| cursor)
3839 })
3840 .collect();
3841
3842 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3843 this.refresh_inline_completion(true, false, cx);
3844 });
3845 }
3846
3847 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3848 let buffer = self.buffer.read(cx);
3849 let snapshot = buffer.snapshot(cx);
3850
3851 let mut edits = Vec::new();
3852 let mut rows = Vec::new();
3853
3854 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3855 let cursor = selection.head();
3856 let row = cursor.row;
3857
3858 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3859
3860 let newline = "\n".to_string();
3861 edits.push((start_of_line..start_of_line, newline));
3862
3863 rows.push(row + rows_inserted as u32);
3864 }
3865
3866 self.transact(cx, |editor, cx| {
3867 editor.edit(edits, cx);
3868
3869 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3870 let mut index = 0;
3871 s.move_cursors_with(|map, _, _| {
3872 let row = rows[index];
3873 index += 1;
3874
3875 let point = Point::new(row, 0);
3876 let boundary = map.next_line_boundary(point).1;
3877 let clipped = map.clip_point(boundary, Bias::Left);
3878
3879 (clipped, SelectionGoal::None)
3880 });
3881 });
3882
3883 let mut indent_edits = Vec::new();
3884 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3885 for row in rows {
3886 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3887 for (row, indent) in indents {
3888 if indent.len == 0 {
3889 continue;
3890 }
3891
3892 let text = match indent.kind {
3893 IndentKind::Space => " ".repeat(indent.len as usize),
3894 IndentKind::Tab => "\t".repeat(indent.len as usize),
3895 };
3896 let point = Point::new(row.0, 0);
3897 indent_edits.push((point..point, text));
3898 }
3899 }
3900 editor.edit(indent_edits, cx);
3901 });
3902 }
3903
3904 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3905 let buffer = self.buffer.read(cx);
3906 let snapshot = buffer.snapshot(cx);
3907
3908 let mut edits = Vec::new();
3909 let mut rows = Vec::new();
3910 let mut rows_inserted = 0;
3911
3912 for selection in self.selections.all_adjusted(cx) {
3913 let cursor = selection.head();
3914 let row = cursor.row;
3915
3916 let point = Point::new(row + 1, 0);
3917 let start_of_line = snapshot.clip_point(point, Bias::Left);
3918
3919 let newline = "\n".to_string();
3920 edits.push((start_of_line..start_of_line, newline));
3921
3922 rows_inserted += 1;
3923 rows.push(row + rows_inserted);
3924 }
3925
3926 self.transact(cx, |editor, cx| {
3927 editor.edit(edits, cx);
3928
3929 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3930 let mut index = 0;
3931 s.move_cursors_with(|map, _, _| {
3932 let row = rows[index];
3933 index += 1;
3934
3935 let point = Point::new(row, 0);
3936 let boundary = map.next_line_boundary(point).1;
3937 let clipped = map.clip_point(boundary, Bias::Left);
3938
3939 (clipped, SelectionGoal::None)
3940 });
3941 });
3942
3943 let mut indent_edits = Vec::new();
3944 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3945 for row in rows {
3946 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3947 for (row, indent) in indents {
3948 if indent.len == 0 {
3949 continue;
3950 }
3951
3952 let text = match indent.kind {
3953 IndentKind::Space => " ".repeat(indent.len as usize),
3954 IndentKind::Tab => "\t".repeat(indent.len as usize),
3955 };
3956 let point = Point::new(row.0, 0);
3957 indent_edits.push((point..point, text));
3958 }
3959 }
3960 editor.edit(indent_edits, cx);
3961 });
3962 }
3963
3964 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3965 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3966 original_indent_columns: Vec::new(),
3967 });
3968 self.insert_with_autoindent_mode(text, autoindent, cx);
3969 }
3970
3971 fn insert_with_autoindent_mode(
3972 &mut self,
3973 text: &str,
3974 autoindent_mode: Option<AutoindentMode>,
3975 cx: &mut ViewContext<Self>,
3976 ) {
3977 if self.read_only(cx) {
3978 return;
3979 }
3980
3981 let text: Arc<str> = text.into();
3982 self.transact(cx, |this, cx| {
3983 let old_selections = this.selections.all_adjusted(cx);
3984 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3985 let anchors = {
3986 let snapshot = buffer.read(cx);
3987 old_selections
3988 .iter()
3989 .map(|s| {
3990 let anchor = snapshot.anchor_after(s.head());
3991 s.map(|_| anchor)
3992 })
3993 .collect::<Vec<_>>()
3994 };
3995 buffer.edit(
3996 old_selections
3997 .iter()
3998 .map(|s| (s.start..s.end, text.clone())),
3999 autoindent_mode,
4000 cx,
4001 );
4002 anchors
4003 });
4004
4005 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4006 s.select_anchors(selection_anchors);
4007 })
4008 });
4009 }
4010
4011 fn trigger_completion_on_input(
4012 &mut self,
4013 text: &str,
4014 trigger_in_words: bool,
4015 cx: &mut ViewContext<Self>,
4016 ) {
4017 if self.is_completion_trigger(text, trigger_in_words, cx) {
4018 self.show_completions(
4019 &ShowCompletions {
4020 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
4021 },
4022 cx,
4023 );
4024 } else {
4025 self.hide_context_menu(cx);
4026 }
4027 }
4028
4029 fn is_completion_trigger(
4030 &self,
4031 text: &str,
4032 trigger_in_words: bool,
4033 cx: &mut ViewContext<Self>,
4034 ) -> bool {
4035 let position = self.selections.newest_anchor().head();
4036 let multibuffer = self.buffer.read(cx);
4037 let Some(buffer) = position
4038 .buffer_id
4039 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
4040 else {
4041 return false;
4042 };
4043
4044 if let Some(completion_provider) = &self.completion_provider {
4045 completion_provider.is_completion_trigger(
4046 &buffer,
4047 position.text_anchor,
4048 text,
4049 trigger_in_words,
4050 cx,
4051 )
4052 } else {
4053 false
4054 }
4055 }
4056
4057 /// If any empty selections is touching the start of its innermost containing autoclose
4058 /// region, expand it to select the brackets.
4059 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
4060 let selections = self.selections.all::<usize>(cx);
4061 let buffer = self.buffer.read(cx).read(cx);
4062 let new_selections = self
4063 .selections_with_autoclose_regions(selections, &buffer)
4064 .map(|(mut selection, region)| {
4065 if !selection.is_empty() {
4066 return selection;
4067 }
4068
4069 if let Some(region) = region {
4070 let mut range = region.range.to_offset(&buffer);
4071 if selection.start == range.start && range.start >= region.pair.start.len() {
4072 range.start -= region.pair.start.len();
4073 if buffer.contains_str_at(range.start, ®ion.pair.start)
4074 && buffer.contains_str_at(range.end, ®ion.pair.end)
4075 {
4076 range.end += region.pair.end.len();
4077 selection.start = range.start;
4078 selection.end = range.end;
4079
4080 return selection;
4081 }
4082 }
4083 }
4084
4085 let always_treat_brackets_as_autoclosed = buffer
4086 .settings_at(selection.start, cx)
4087 .always_treat_brackets_as_autoclosed;
4088
4089 if !always_treat_brackets_as_autoclosed {
4090 return selection;
4091 }
4092
4093 if let Some(scope) = buffer.language_scope_at(selection.start) {
4094 for (pair, enabled) in scope.brackets() {
4095 if !enabled || !pair.close {
4096 continue;
4097 }
4098
4099 if buffer.contains_str_at(selection.start, &pair.end) {
4100 let pair_start_len = pair.start.len();
4101 if buffer.contains_str_at(
4102 selection.start.saturating_sub(pair_start_len),
4103 &pair.start,
4104 ) {
4105 selection.start -= pair_start_len;
4106 selection.end += pair.end.len();
4107
4108 return selection;
4109 }
4110 }
4111 }
4112 }
4113
4114 selection
4115 })
4116 .collect();
4117
4118 drop(buffer);
4119 self.change_selections(None, cx, |selections| selections.select(new_selections));
4120 }
4121
4122 /// Iterate the given selections, and for each one, find the smallest surrounding
4123 /// autoclose region. This uses the ordering of the selections and the autoclose
4124 /// regions to avoid repeated comparisons.
4125 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4126 &'a self,
4127 selections: impl IntoIterator<Item = Selection<D>>,
4128 buffer: &'a MultiBufferSnapshot,
4129 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4130 let mut i = 0;
4131 let mut regions = self.autoclose_regions.as_slice();
4132 selections.into_iter().map(move |selection| {
4133 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4134
4135 let mut enclosing = None;
4136 while let Some(pair_state) = regions.get(i) {
4137 if pair_state.range.end.to_offset(buffer) < range.start {
4138 regions = ®ions[i + 1..];
4139 i = 0;
4140 } else if pair_state.range.start.to_offset(buffer) > range.end {
4141 break;
4142 } else {
4143 if pair_state.selection_id == selection.id {
4144 enclosing = Some(pair_state);
4145 }
4146 i += 1;
4147 }
4148 }
4149
4150 (selection, enclosing)
4151 })
4152 }
4153
4154 /// Remove any autoclose regions that no longer contain their selection.
4155 fn invalidate_autoclose_regions(
4156 &mut self,
4157 mut selections: &[Selection<Anchor>],
4158 buffer: &MultiBufferSnapshot,
4159 ) {
4160 self.autoclose_regions.retain(|state| {
4161 let mut i = 0;
4162 while let Some(selection) = selections.get(i) {
4163 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4164 selections = &selections[1..];
4165 continue;
4166 }
4167 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4168 break;
4169 }
4170 if selection.id == state.selection_id {
4171 return true;
4172 } else {
4173 i += 1;
4174 }
4175 }
4176 false
4177 });
4178 }
4179
4180 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4181 let offset = position.to_offset(buffer);
4182 let (word_range, kind) = buffer.surrounding_word(offset, true);
4183 if offset > word_range.start && kind == Some(CharKind::Word) {
4184 Some(
4185 buffer
4186 .text_for_range(word_range.start..offset)
4187 .collect::<String>(),
4188 )
4189 } else {
4190 None
4191 }
4192 }
4193
4194 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4195 self.refresh_inlay_hints(
4196 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4197 cx,
4198 );
4199 }
4200
4201 pub fn inlay_hints_enabled(&self) -> bool {
4202 self.inlay_hint_cache.enabled
4203 }
4204
4205 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4206 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4207 return;
4208 }
4209
4210 let reason_description = reason.description();
4211 let ignore_debounce = matches!(
4212 reason,
4213 InlayHintRefreshReason::SettingsChange(_)
4214 | InlayHintRefreshReason::Toggle(_)
4215 | InlayHintRefreshReason::ExcerptsRemoved(_)
4216 );
4217 let (invalidate_cache, required_languages) = match reason {
4218 InlayHintRefreshReason::Toggle(enabled) => {
4219 self.inlay_hint_cache.enabled = enabled;
4220 if enabled {
4221 (InvalidationStrategy::RefreshRequested, None)
4222 } else {
4223 self.inlay_hint_cache.clear();
4224 self.splice_inlays(
4225 self.visible_inlay_hints(cx)
4226 .iter()
4227 .map(|inlay| inlay.id)
4228 .collect(),
4229 Vec::new(),
4230 cx,
4231 );
4232 return;
4233 }
4234 }
4235 InlayHintRefreshReason::SettingsChange(new_settings) => {
4236 match self.inlay_hint_cache.update_settings(
4237 &self.buffer,
4238 new_settings,
4239 self.visible_inlay_hints(cx),
4240 cx,
4241 ) {
4242 ControlFlow::Break(Some(InlaySplice {
4243 to_remove,
4244 to_insert,
4245 })) => {
4246 self.splice_inlays(to_remove, to_insert, cx);
4247 return;
4248 }
4249 ControlFlow::Break(None) => return,
4250 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4251 }
4252 }
4253 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4254 if let Some(InlaySplice {
4255 to_remove,
4256 to_insert,
4257 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4258 {
4259 self.splice_inlays(to_remove, to_insert, cx);
4260 }
4261 return;
4262 }
4263 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4264 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4265 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4266 }
4267 InlayHintRefreshReason::RefreshRequested => {
4268 (InvalidationStrategy::RefreshRequested, None)
4269 }
4270 };
4271
4272 if let Some(InlaySplice {
4273 to_remove,
4274 to_insert,
4275 }) = self.inlay_hint_cache.spawn_hint_refresh(
4276 reason_description,
4277 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4278 invalidate_cache,
4279 ignore_debounce,
4280 cx,
4281 ) {
4282 self.splice_inlays(to_remove, to_insert, cx);
4283 }
4284 }
4285
4286 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4287 self.display_map
4288 .read(cx)
4289 .current_inlays()
4290 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4291 .cloned()
4292 .collect()
4293 }
4294
4295 pub fn excerpts_for_inlay_hints_query(
4296 &self,
4297 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4298 cx: &mut ViewContext<Editor>,
4299 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4300 let Some(project) = self.project.as_ref() else {
4301 return HashMap::default();
4302 };
4303 let project = project.read(cx);
4304 let multi_buffer = self.buffer().read(cx);
4305 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4306 let multi_buffer_visible_start = self
4307 .scroll_manager
4308 .anchor()
4309 .anchor
4310 .to_point(&multi_buffer_snapshot);
4311 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4312 multi_buffer_visible_start
4313 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4314 Bias::Left,
4315 );
4316 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4317 multi_buffer
4318 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4319 .into_iter()
4320 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4321 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4322 let buffer = buffer_handle.read(cx);
4323 let buffer_file = project::File::from_dyn(buffer.file())?;
4324 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4325 let worktree_entry = buffer_worktree
4326 .read(cx)
4327 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4328 if worktree_entry.is_ignored {
4329 return None;
4330 }
4331
4332 let language = buffer.language()?;
4333 if let Some(restrict_to_languages) = restrict_to_languages {
4334 if !restrict_to_languages.contains(language) {
4335 return None;
4336 }
4337 }
4338 Some((
4339 excerpt_id,
4340 (
4341 buffer_handle,
4342 buffer.version().clone(),
4343 excerpt_visible_range,
4344 ),
4345 ))
4346 })
4347 .collect()
4348 }
4349
4350 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4351 TextLayoutDetails {
4352 text_system: cx.text_system().clone(),
4353 editor_style: self.style.clone().unwrap(),
4354 rem_size: cx.rem_size(),
4355 scroll_anchor: self.scroll_manager.anchor(),
4356 visible_rows: self.visible_line_count(),
4357 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4358 }
4359 }
4360
4361 fn splice_inlays(
4362 &self,
4363 to_remove: Vec<InlayId>,
4364 to_insert: Vec<Inlay>,
4365 cx: &mut ViewContext<Self>,
4366 ) {
4367 self.display_map.update(cx, |display_map, cx| {
4368 display_map.splice_inlays(to_remove, to_insert, cx);
4369 });
4370 cx.notify();
4371 }
4372
4373 fn trigger_on_type_formatting(
4374 &self,
4375 input: String,
4376 cx: &mut ViewContext<Self>,
4377 ) -> Option<Task<Result<()>>> {
4378 if input.len() != 1 {
4379 return None;
4380 }
4381
4382 let project = self.project.as_ref()?;
4383 let position = self.selections.newest_anchor().head();
4384 let (buffer, buffer_position) = self
4385 .buffer
4386 .read(cx)
4387 .text_anchor_for_position(position, cx)?;
4388
4389 let settings = language_settings::language_settings(
4390 buffer
4391 .read(cx)
4392 .language_at(buffer_position)
4393 .map(|l| l.name()),
4394 buffer.read(cx).file(),
4395 cx,
4396 );
4397 if !settings.use_on_type_format {
4398 return None;
4399 }
4400
4401 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4402 // hence we do LSP request & edit on host side only — add formats to host's history.
4403 let push_to_lsp_host_history = true;
4404 // If this is not the host, append its history with new edits.
4405 let push_to_client_history = project.read(cx).is_via_collab();
4406
4407 let on_type_formatting = project.update(cx, |project, cx| {
4408 project.on_type_format(
4409 buffer.clone(),
4410 buffer_position,
4411 input,
4412 push_to_lsp_host_history,
4413 cx,
4414 )
4415 });
4416 Some(cx.spawn(|editor, mut cx| async move {
4417 if let Some(transaction) = on_type_formatting.await? {
4418 if push_to_client_history {
4419 buffer
4420 .update(&mut cx, |buffer, _| {
4421 buffer.push_transaction(transaction, Instant::now());
4422 })
4423 .ok();
4424 }
4425 editor.update(&mut cx, |editor, cx| {
4426 editor.refresh_document_highlights(cx);
4427 })?;
4428 }
4429 Ok(())
4430 }))
4431 }
4432
4433 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4434 if self.pending_rename.is_some() {
4435 return;
4436 }
4437
4438 let Some(provider) = self.completion_provider.as_ref() else {
4439 return;
4440 };
4441
4442 if !self.snippet_stack.is_empty() && self.context_menu.read().as_ref().is_some() {
4443 return;
4444 }
4445
4446 let position = self.selections.newest_anchor().head();
4447 let (buffer, buffer_position) =
4448 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4449 output
4450 } else {
4451 return;
4452 };
4453
4454 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4455 let trigger_kind = match &options.trigger {
4456 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
4457 CompletionTriggerKind::TRIGGER_CHARACTER
4458 }
4459 _ => CompletionTriggerKind::INVOKED,
4460 };
4461 let completion_context = CompletionContext {
4462 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4463 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4464 Some(String::from(trigger))
4465 } else {
4466 None
4467 }
4468 }),
4469 trigger_kind,
4470 };
4471 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4472 let sort_completions = provider.sort_completions();
4473
4474 let id = post_inc(&mut self.next_completion_id);
4475 let task = cx.spawn(|editor, mut cx| {
4476 async move {
4477 editor.update(&mut cx, |this, _| {
4478 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4479 })?;
4480 let completions = completions.await.log_err();
4481 let menu = if let Some(completions) = completions {
4482 let mut menu = CompletionsMenu::new(
4483 id,
4484 sort_completions,
4485 position,
4486 buffer.clone(),
4487 completions.into(),
4488 );
4489 menu.filter(query.as_deref(), cx.background_executor().clone())
4490 .await;
4491
4492 if menu.matches.is_empty() {
4493 None
4494 } else {
4495 Some(menu)
4496 }
4497 } else {
4498 None
4499 };
4500
4501 editor.update(&mut cx, |editor, cx| {
4502 let mut context_menu = editor.context_menu.write();
4503 match context_menu.as_ref() {
4504 None => {}
4505
4506 Some(ContextMenu::Completions(prev_menu)) => {
4507 if prev_menu.id > id {
4508 return;
4509 }
4510 }
4511
4512 _ => return,
4513 }
4514
4515 if editor.focus_handle.is_focused(cx) && menu.is_some() {
4516 let mut menu = menu.unwrap();
4517 menu.resolve_selected_completion(editor.completion_provider.as_deref(), cx);
4518 *context_menu = Some(ContextMenu::Completions(menu));
4519 drop(context_menu);
4520 editor.discard_inline_completion(false, cx);
4521 cx.notify();
4522 } else if editor.completion_tasks.len() <= 1 {
4523 // If there are no more completion tasks and the last menu was
4524 // empty, we should hide it. If it was already hidden, we should
4525 // also show the copilot completion when available.
4526 drop(context_menu);
4527 if editor.hide_context_menu(cx).is_none() {
4528 editor.update_visible_inline_completion(cx);
4529 }
4530 }
4531 })?;
4532
4533 Ok::<_, anyhow::Error>(())
4534 }
4535 .log_err()
4536 });
4537
4538 self.completion_tasks.push((id, task));
4539 }
4540
4541 pub fn confirm_completion(
4542 &mut self,
4543 action: &ConfirmCompletion,
4544 cx: &mut ViewContext<Self>,
4545 ) -> Option<Task<Result<()>>> {
4546 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4547 }
4548
4549 pub fn compose_completion(
4550 &mut self,
4551 action: &ComposeCompletion,
4552 cx: &mut ViewContext<Self>,
4553 ) -> Option<Task<Result<()>>> {
4554 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4555 }
4556
4557 fn do_completion(
4558 &mut self,
4559 item_ix: Option<usize>,
4560 intent: CompletionIntent,
4561 cx: &mut ViewContext<Editor>,
4562 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4563 use language::ToOffset as _;
4564
4565 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4566 menu
4567 } else {
4568 return None;
4569 };
4570
4571 let mat = completions_menu
4572 .matches
4573 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4574 let buffer_handle = completions_menu.buffer;
4575 let completions = completions_menu.completions.read();
4576 let completion = completions.get(mat.candidate_id)?;
4577 cx.stop_propagation();
4578
4579 let snippet;
4580 let text;
4581
4582 if completion.is_snippet() {
4583 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4584 text = snippet.as_ref().unwrap().text.clone();
4585 } else {
4586 snippet = None;
4587 text = completion.new_text.clone();
4588 };
4589 let selections = self.selections.all::<usize>(cx);
4590 let buffer = buffer_handle.read(cx);
4591 let old_range = completion.old_range.to_offset(buffer);
4592 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4593
4594 let newest_selection = self.selections.newest_anchor();
4595 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4596 return None;
4597 }
4598
4599 let lookbehind = newest_selection
4600 .start
4601 .text_anchor
4602 .to_offset(buffer)
4603 .saturating_sub(old_range.start);
4604 let lookahead = old_range
4605 .end
4606 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4607 let mut common_prefix_len = old_text
4608 .bytes()
4609 .zip(text.bytes())
4610 .take_while(|(a, b)| a == b)
4611 .count();
4612
4613 let snapshot = self.buffer.read(cx).snapshot(cx);
4614 let mut range_to_replace: Option<Range<isize>> = None;
4615 let mut ranges = Vec::new();
4616 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4617 for selection in &selections {
4618 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4619 let start = selection.start.saturating_sub(lookbehind);
4620 let end = selection.end + lookahead;
4621 if selection.id == newest_selection.id {
4622 range_to_replace = Some(
4623 ((start + common_prefix_len) as isize - selection.start as isize)
4624 ..(end as isize - selection.start as isize),
4625 );
4626 }
4627 ranges.push(start + common_prefix_len..end);
4628 } else {
4629 common_prefix_len = 0;
4630 ranges.clear();
4631 ranges.extend(selections.iter().map(|s| {
4632 if s.id == newest_selection.id {
4633 range_to_replace = Some(
4634 old_range.start.to_offset_utf16(&snapshot).0 as isize
4635 - selection.start as isize
4636 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4637 - selection.start as isize,
4638 );
4639 old_range.clone()
4640 } else {
4641 s.start..s.end
4642 }
4643 }));
4644 break;
4645 }
4646 if !self.linked_edit_ranges.is_empty() {
4647 let start_anchor = snapshot.anchor_before(selection.head());
4648 let end_anchor = snapshot.anchor_after(selection.tail());
4649 if let Some(ranges) = self
4650 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4651 {
4652 for (buffer, edits) in ranges {
4653 linked_edits.entry(buffer.clone()).or_default().extend(
4654 edits
4655 .into_iter()
4656 .map(|range| (range, text[common_prefix_len..].to_owned())),
4657 );
4658 }
4659 }
4660 }
4661 }
4662 let text = &text[common_prefix_len..];
4663
4664 cx.emit(EditorEvent::InputHandled {
4665 utf16_range_to_replace: range_to_replace,
4666 text: text.into(),
4667 });
4668
4669 self.transact(cx, |this, cx| {
4670 if let Some(mut snippet) = snippet {
4671 snippet.text = text.to_string();
4672 for tabstop in snippet
4673 .tabstops
4674 .iter_mut()
4675 .flat_map(|tabstop| tabstop.ranges.iter_mut())
4676 {
4677 tabstop.start -= common_prefix_len as isize;
4678 tabstop.end -= common_prefix_len as isize;
4679 }
4680
4681 this.insert_snippet(&ranges, snippet, cx).log_err();
4682 } else {
4683 this.buffer.update(cx, |buffer, cx| {
4684 buffer.edit(
4685 ranges.iter().map(|range| (range.clone(), text)),
4686 this.autoindent_mode.clone(),
4687 cx,
4688 );
4689 });
4690 }
4691 for (buffer, edits) in linked_edits {
4692 buffer.update(cx, |buffer, cx| {
4693 let snapshot = buffer.snapshot();
4694 let edits = edits
4695 .into_iter()
4696 .map(|(range, text)| {
4697 use text::ToPoint as TP;
4698 let end_point = TP::to_point(&range.end, &snapshot);
4699 let start_point = TP::to_point(&range.start, &snapshot);
4700 (start_point..end_point, text)
4701 })
4702 .sorted_by_key(|(range, _)| range.start)
4703 .collect::<Vec<_>>();
4704 buffer.edit(edits, None, cx);
4705 })
4706 }
4707
4708 this.refresh_inline_completion(true, false, cx);
4709 });
4710
4711 let show_new_completions_on_confirm = completion
4712 .confirm
4713 .as_ref()
4714 .map_or(false, |confirm| confirm(intent, cx));
4715 if show_new_completions_on_confirm {
4716 self.show_completions(&ShowCompletions { trigger: None }, cx);
4717 }
4718
4719 let provider = self.completion_provider.as_ref()?;
4720 let apply_edits = provider.apply_additional_edits_for_completion(
4721 buffer_handle,
4722 completion.clone(),
4723 true,
4724 cx,
4725 );
4726
4727 let editor_settings = EditorSettings::get_global(cx);
4728 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4729 // After the code completion is finished, users often want to know what signatures are needed.
4730 // so we should automatically call signature_help
4731 self.show_signature_help(&ShowSignatureHelp, cx);
4732 }
4733
4734 Some(cx.foreground_executor().spawn(async move {
4735 apply_edits.await?;
4736 Ok(())
4737 }))
4738 }
4739
4740 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4741 let mut context_menu = self.context_menu.write();
4742 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4743 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4744 // Toggle if we're selecting the same one
4745 *context_menu = None;
4746 cx.notify();
4747 return;
4748 } else {
4749 // Otherwise, clear it and start a new one
4750 *context_menu = None;
4751 cx.notify();
4752 }
4753 }
4754 drop(context_menu);
4755 let snapshot = self.snapshot(cx);
4756 let deployed_from_indicator = action.deployed_from_indicator;
4757 let mut task = self.code_actions_task.take();
4758 let action = action.clone();
4759 cx.spawn(|editor, mut cx| async move {
4760 while let Some(prev_task) = task {
4761 prev_task.await.log_err();
4762 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4763 }
4764
4765 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4766 if editor.focus_handle.is_focused(cx) {
4767 let multibuffer_point = action
4768 .deployed_from_indicator
4769 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4770 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4771 let (buffer, buffer_row) = snapshot
4772 .buffer_snapshot
4773 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4774 .and_then(|(buffer_snapshot, range)| {
4775 editor
4776 .buffer
4777 .read(cx)
4778 .buffer(buffer_snapshot.remote_id())
4779 .map(|buffer| (buffer, range.start.row))
4780 })?;
4781 let (_, code_actions) = editor
4782 .available_code_actions
4783 .clone()
4784 .and_then(|(location, code_actions)| {
4785 let snapshot = location.buffer.read(cx).snapshot();
4786 let point_range = location.range.to_point(&snapshot);
4787 let point_range = point_range.start.row..=point_range.end.row;
4788 if point_range.contains(&buffer_row) {
4789 Some((location, code_actions))
4790 } else {
4791 None
4792 }
4793 })
4794 .unzip();
4795 let buffer_id = buffer.read(cx).remote_id();
4796 let tasks = editor
4797 .tasks
4798 .get(&(buffer_id, buffer_row))
4799 .map(|t| Arc::new(t.to_owned()));
4800 if tasks.is_none() && code_actions.is_none() {
4801 return None;
4802 }
4803
4804 editor.completion_tasks.clear();
4805 editor.discard_inline_completion(false, cx);
4806 let task_context =
4807 tasks
4808 .as_ref()
4809 .zip(editor.project.clone())
4810 .map(|(tasks, project)| {
4811 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4812 });
4813
4814 Some(cx.spawn(|editor, mut cx| async move {
4815 let task_context = match task_context {
4816 Some(task_context) => task_context.await,
4817 None => None,
4818 };
4819 let resolved_tasks =
4820 tasks.zip(task_context).map(|(tasks, task_context)| {
4821 Arc::new(ResolvedTasks {
4822 templates: tasks.resolve(&task_context).collect(),
4823 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4824 multibuffer_point.row,
4825 tasks.column,
4826 )),
4827 })
4828 });
4829 let spawn_straight_away = resolved_tasks
4830 .as_ref()
4831 .map_or(false, |tasks| tasks.templates.len() == 1)
4832 && code_actions
4833 .as_ref()
4834 .map_or(true, |actions| actions.is_empty());
4835 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4836 *editor.context_menu.write() =
4837 Some(ContextMenu::CodeActions(CodeActionsMenu {
4838 buffer,
4839 actions: CodeActionContents {
4840 tasks: resolved_tasks,
4841 actions: code_actions,
4842 },
4843 selected_item: Default::default(),
4844 scroll_handle: UniformListScrollHandle::default(),
4845 deployed_from_indicator,
4846 }));
4847 if spawn_straight_away {
4848 if let Some(task) = editor.confirm_code_action(
4849 &ConfirmCodeAction { item_ix: Some(0) },
4850 cx,
4851 ) {
4852 cx.notify();
4853 return task;
4854 }
4855 }
4856 cx.notify();
4857 Task::ready(Ok(()))
4858 }) {
4859 task.await
4860 } else {
4861 Ok(())
4862 }
4863 }))
4864 } else {
4865 Some(Task::ready(Ok(())))
4866 }
4867 })?;
4868 if let Some(task) = spawned_test_task {
4869 task.await?;
4870 }
4871
4872 Ok::<_, anyhow::Error>(())
4873 })
4874 .detach_and_log_err(cx);
4875 }
4876
4877 pub fn confirm_code_action(
4878 &mut self,
4879 action: &ConfirmCodeAction,
4880 cx: &mut ViewContext<Self>,
4881 ) -> Option<Task<Result<()>>> {
4882 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4883 menu
4884 } else {
4885 return None;
4886 };
4887 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4888 let action = actions_menu.actions.get(action_ix)?;
4889 let title = action.label();
4890 let buffer = actions_menu.buffer;
4891 let workspace = self.workspace()?;
4892
4893 match action {
4894 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4895 workspace.update(cx, |workspace, cx| {
4896 workspace::tasks::schedule_resolved_task(
4897 workspace,
4898 task_source_kind,
4899 resolved_task,
4900 false,
4901 cx,
4902 );
4903
4904 Some(Task::ready(Ok(())))
4905 })
4906 }
4907 CodeActionsItem::CodeAction {
4908 excerpt_id,
4909 action,
4910 provider,
4911 } => {
4912 let apply_code_action =
4913 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4914 let workspace = workspace.downgrade();
4915 Some(cx.spawn(|editor, cx| async move {
4916 let project_transaction = apply_code_action.await?;
4917 Self::open_project_transaction(
4918 &editor,
4919 workspace,
4920 project_transaction,
4921 title,
4922 cx,
4923 )
4924 .await
4925 }))
4926 }
4927 }
4928 }
4929
4930 pub async fn open_project_transaction(
4931 this: &WeakView<Editor>,
4932 workspace: WeakView<Workspace>,
4933 transaction: ProjectTransaction,
4934 title: String,
4935 mut cx: AsyncWindowContext,
4936 ) -> Result<()> {
4937 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4938 cx.update(|cx| {
4939 entries.sort_unstable_by_key(|(buffer, _)| {
4940 buffer.read(cx).file().map(|f| f.path().clone())
4941 });
4942 })?;
4943
4944 // If the project transaction's edits are all contained within this editor, then
4945 // avoid opening a new editor to display them.
4946
4947 if let Some((buffer, transaction)) = entries.first() {
4948 if entries.len() == 1 {
4949 let excerpt = this.update(&mut cx, |editor, cx| {
4950 editor
4951 .buffer()
4952 .read(cx)
4953 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4954 })?;
4955 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4956 if excerpted_buffer == *buffer {
4957 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4958 let excerpt_range = excerpt_range.to_offset(buffer);
4959 buffer
4960 .edited_ranges_for_transaction::<usize>(transaction)
4961 .all(|range| {
4962 excerpt_range.start <= range.start
4963 && excerpt_range.end >= range.end
4964 })
4965 })?;
4966
4967 if all_edits_within_excerpt {
4968 return Ok(());
4969 }
4970 }
4971 }
4972 }
4973 } else {
4974 return Ok(());
4975 }
4976
4977 let mut ranges_to_highlight = Vec::new();
4978 let excerpt_buffer = cx.new_model(|cx| {
4979 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4980 for (buffer_handle, transaction) in &entries {
4981 let buffer = buffer_handle.read(cx);
4982 ranges_to_highlight.extend(
4983 multibuffer.push_excerpts_with_context_lines(
4984 buffer_handle.clone(),
4985 buffer
4986 .edited_ranges_for_transaction::<usize>(transaction)
4987 .collect(),
4988 DEFAULT_MULTIBUFFER_CONTEXT,
4989 cx,
4990 ),
4991 );
4992 }
4993 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4994 multibuffer
4995 })?;
4996
4997 workspace.update(&mut cx, |workspace, cx| {
4998 let project = workspace.project().clone();
4999 let editor =
5000 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
5001 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
5002 editor.update(cx, |editor, cx| {
5003 editor.highlight_background::<Self>(
5004 &ranges_to_highlight,
5005 |theme| theme.editor_highlighted_line_background,
5006 cx,
5007 );
5008 });
5009 })?;
5010
5011 Ok(())
5012 }
5013
5014 pub fn clear_code_action_providers(&mut self) {
5015 self.code_action_providers.clear();
5016 self.available_code_actions.take();
5017 }
5018
5019 pub fn push_code_action_provider(
5020 &mut self,
5021 provider: Arc<dyn CodeActionProvider>,
5022 cx: &mut ViewContext<Self>,
5023 ) {
5024 self.code_action_providers.push(provider);
5025 self.refresh_code_actions(cx);
5026 }
5027
5028 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5029 let buffer = self.buffer.read(cx);
5030 let newest_selection = self.selections.newest_anchor().clone();
5031 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
5032 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
5033 if start_buffer != end_buffer {
5034 return None;
5035 }
5036
5037 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
5038 cx.background_executor()
5039 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
5040 .await;
5041
5042 let (providers, tasks) = this.update(&mut cx, |this, cx| {
5043 let providers = this.code_action_providers.clone();
5044 let tasks = this
5045 .code_action_providers
5046 .iter()
5047 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
5048 .collect::<Vec<_>>();
5049 (providers, tasks)
5050 })?;
5051
5052 let mut actions = Vec::new();
5053 for (provider, provider_actions) in
5054 providers.into_iter().zip(future::join_all(tasks).await)
5055 {
5056 if let Some(provider_actions) = provider_actions.log_err() {
5057 actions.extend(provider_actions.into_iter().map(|action| {
5058 AvailableCodeAction {
5059 excerpt_id: newest_selection.start.excerpt_id,
5060 action,
5061 provider: provider.clone(),
5062 }
5063 }));
5064 }
5065 }
5066
5067 this.update(&mut cx, |this, cx| {
5068 this.available_code_actions = if actions.is_empty() {
5069 None
5070 } else {
5071 Some((
5072 Location {
5073 buffer: start_buffer,
5074 range: start..end,
5075 },
5076 actions.into(),
5077 ))
5078 };
5079 cx.notify();
5080 })
5081 }));
5082 None
5083 }
5084
5085 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5086 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5087 self.show_git_blame_inline = false;
5088
5089 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5090 cx.background_executor().timer(delay).await;
5091
5092 this.update(&mut cx, |this, cx| {
5093 this.show_git_blame_inline = true;
5094 cx.notify();
5095 })
5096 .log_err();
5097 }));
5098 }
5099 }
5100
5101 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5102 if self.pending_rename.is_some() {
5103 return None;
5104 }
5105
5106 let provider = self.semantics_provider.clone()?;
5107 let buffer = self.buffer.read(cx);
5108 let newest_selection = self.selections.newest_anchor().clone();
5109 let cursor_position = newest_selection.head();
5110 let (cursor_buffer, cursor_buffer_position) =
5111 buffer.text_anchor_for_position(cursor_position, cx)?;
5112 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5113 if cursor_buffer != tail_buffer {
5114 return None;
5115 }
5116
5117 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5118 cx.background_executor()
5119 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5120 .await;
5121
5122 let highlights = if let Some(highlights) = cx
5123 .update(|cx| {
5124 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5125 })
5126 .ok()
5127 .flatten()
5128 {
5129 highlights.await.log_err()
5130 } else {
5131 None
5132 };
5133
5134 if let Some(highlights) = highlights {
5135 this.update(&mut cx, |this, cx| {
5136 if this.pending_rename.is_some() {
5137 return;
5138 }
5139
5140 let buffer_id = cursor_position.buffer_id;
5141 let buffer = this.buffer.read(cx);
5142 if !buffer
5143 .text_anchor_for_position(cursor_position, cx)
5144 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5145 {
5146 return;
5147 }
5148
5149 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5150 let mut write_ranges = Vec::new();
5151 let mut read_ranges = Vec::new();
5152 for highlight in highlights {
5153 for (excerpt_id, excerpt_range) in
5154 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5155 {
5156 let start = highlight
5157 .range
5158 .start
5159 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5160 let end = highlight
5161 .range
5162 .end
5163 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5164 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5165 continue;
5166 }
5167
5168 let range = Anchor {
5169 buffer_id,
5170 excerpt_id,
5171 text_anchor: start,
5172 }..Anchor {
5173 buffer_id,
5174 excerpt_id,
5175 text_anchor: end,
5176 };
5177 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5178 write_ranges.push(range);
5179 } else {
5180 read_ranges.push(range);
5181 }
5182 }
5183 }
5184
5185 this.highlight_background::<DocumentHighlightRead>(
5186 &read_ranges,
5187 |theme| theme.editor_document_highlight_read_background,
5188 cx,
5189 );
5190 this.highlight_background::<DocumentHighlightWrite>(
5191 &write_ranges,
5192 |theme| theme.editor_document_highlight_write_background,
5193 cx,
5194 );
5195 cx.notify();
5196 })
5197 .log_err();
5198 }
5199 }));
5200 None
5201 }
5202
5203 pub fn refresh_inline_completion(
5204 &mut self,
5205 debounce: bool,
5206 user_requested: bool,
5207 cx: &mut ViewContext<Self>,
5208 ) -> Option<()> {
5209 let provider = self.inline_completion_provider()?;
5210 let cursor = self.selections.newest_anchor().head();
5211 let (buffer, cursor_buffer_position) =
5212 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5213
5214 if !user_requested
5215 && (!self.enable_inline_completions
5216 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5217 {
5218 self.discard_inline_completion(false, cx);
5219 return None;
5220 }
5221
5222 self.update_visible_inline_completion(cx);
5223 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5224 Some(())
5225 }
5226
5227 fn cycle_inline_completion(
5228 &mut self,
5229 direction: Direction,
5230 cx: &mut ViewContext<Self>,
5231 ) -> Option<()> {
5232 let provider = self.inline_completion_provider()?;
5233 let cursor = self.selections.newest_anchor().head();
5234 let (buffer, cursor_buffer_position) =
5235 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5236 if !self.enable_inline_completions
5237 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5238 {
5239 return None;
5240 }
5241
5242 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5243 self.update_visible_inline_completion(cx);
5244
5245 Some(())
5246 }
5247
5248 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5249 if !self.has_active_inline_completion(cx) {
5250 self.refresh_inline_completion(false, true, cx);
5251 return;
5252 }
5253
5254 self.update_visible_inline_completion(cx);
5255 }
5256
5257 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5258 self.show_cursor_names(cx);
5259 }
5260
5261 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5262 self.show_cursor_names = true;
5263 cx.notify();
5264 cx.spawn(|this, mut cx| async move {
5265 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5266 this.update(&mut cx, |this, cx| {
5267 this.show_cursor_names = false;
5268 cx.notify()
5269 })
5270 .ok()
5271 })
5272 .detach();
5273 }
5274
5275 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5276 if self.has_active_inline_completion(cx) {
5277 self.cycle_inline_completion(Direction::Next, cx);
5278 } else {
5279 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5280 if is_copilot_disabled {
5281 cx.propagate();
5282 }
5283 }
5284 }
5285
5286 pub fn previous_inline_completion(
5287 &mut self,
5288 _: &PreviousInlineCompletion,
5289 cx: &mut ViewContext<Self>,
5290 ) {
5291 if self.has_active_inline_completion(cx) {
5292 self.cycle_inline_completion(Direction::Prev, cx);
5293 } else {
5294 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5295 if is_copilot_disabled {
5296 cx.propagate();
5297 }
5298 }
5299 }
5300
5301 pub fn accept_inline_completion(
5302 &mut self,
5303 _: &AcceptInlineCompletion,
5304 cx: &mut ViewContext<Self>,
5305 ) {
5306 let Some(completion) = self.take_active_inline_completion(cx) else {
5307 return;
5308 };
5309 if let Some(provider) = self.inline_completion_provider() {
5310 provider.accept(cx);
5311 }
5312
5313 cx.emit(EditorEvent::InputHandled {
5314 utf16_range_to_replace: None,
5315 text: completion.text.to_string().into(),
5316 });
5317
5318 if let Some(range) = completion.delete_range {
5319 self.change_selections(None, cx, |s| s.select_ranges([range]))
5320 }
5321 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5322 self.refresh_inline_completion(true, true, cx);
5323 cx.notify();
5324 }
5325
5326 pub fn accept_partial_inline_completion(
5327 &mut self,
5328 _: &AcceptPartialInlineCompletion,
5329 cx: &mut ViewContext<Self>,
5330 ) {
5331 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5332 if let Some(completion) = self.take_active_inline_completion(cx) {
5333 let mut partial_completion = completion
5334 .text
5335 .chars()
5336 .by_ref()
5337 .take_while(|c| c.is_alphabetic())
5338 .collect::<String>();
5339 if partial_completion.is_empty() {
5340 partial_completion = completion
5341 .text
5342 .chars()
5343 .by_ref()
5344 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5345 .collect::<String>();
5346 }
5347
5348 cx.emit(EditorEvent::InputHandled {
5349 utf16_range_to_replace: None,
5350 text: partial_completion.clone().into(),
5351 });
5352
5353 if let Some(range) = completion.delete_range {
5354 self.change_selections(None, cx, |s| s.select_ranges([range]))
5355 }
5356 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5357
5358 self.refresh_inline_completion(true, true, cx);
5359 cx.notify();
5360 }
5361 }
5362 }
5363
5364 fn discard_inline_completion(
5365 &mut self,
5366 should_report_inline_completion_event: bool,
5367 cx: &mut ViewContext<Self>,
5368 ) -> bool {
5369 if let Some(provider) = self.inline_completion_provider() {
5370 provider.discard(should_report_inline_completion_event, cx);
5371 }
5372
5373 self.take_active_inline_completion(cx).is_some()
5374 }
5375
5376 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5377 if let Some(completion) = self.active_inline_completion.as_ref() {
5378 let buffer = self.buffer.read(cx).read(cx);
5379 completion.position.is_valid(&buffer)
5380 } else {
5381 false
5382 }
5383 }
5384
5385 fn take_active_inline_completion(
5386 &mut self,
5387 cx: &mut ViewContext<Self>,
5388 ) -> Option<CompletionState> {
5389 let completion = self.active_inline_completion.take()?;
5390 let render_inlay_ids = completion.render_inlay_ids.clone();
5391 self.display_map.update(cx, |map, cx| {
5392 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5393 });
5394 let buffer = self.buffer.read(cx).read(cx);
5395
5396 if completion.position.is_valid(&buffer) {
5397 Some(completion)
5398 } else {
5399 None
5400 }
5401 }
5402
5403 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5404 let selection = self.selections.newest_anchor();
5405 let cursor = selection.head();
5406
5407 let excerpt_id = cursor.excerpt_id;
5408
5409 if self.context_menu.read().is_none()
5410 && self.completion_tasks.is_empty()
5411 && selection.start == selection.end
5412 {
5413 if let Some(provider) = self.inline_completion_provider() {
5414 if let Some((buffer, cursor_buffer_position)) =
5415 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5416 {
5417 if let Some(proposal) =
5418 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5419 {
5420 let mut to_remove = Vec::new();
5421 if let Some(completion) = self.active_inline_completion.take() {
5422 to_remove.extend(completion.render_inlay_ids.iter());
5423 }
5424
5425 let to_add = proposal
5426 .inlays
5427 .iter()
5428 .filter_map(|inlay| {
5429 let snapshot = self.buffer.read(cx).snapshot(cx);
5430 let id = post_inc(&mut self.next_inlay_id);
5431 match inlay {
5432 InlayProposal::Hint(position, hint) => {
5433 let position =
5434 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5435 Some(Inlay::hint(id, position, hint))
5436 }
5437 InlayProposal::Suggestion(position, text) => {
5438 let position =
5439 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5440 Some(Inlay::suggestion(id, position, text.clone()))
5441 }
5442 }
5443 })
5444 .collect_vec();
5445
5446 self.active_inline_completion = Some(CompletionState {
5447 position: cursor,
5448 text: proposal.text,
5449 delete_range: proposal.delete_range.and_then(|range| {
5450 let snapshot = self.buffer.read(cx).snapshot(cx);
5451 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5452 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5453 Some(start?..end?)
5454 }),
5455 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5456 });
5457
5458 self.display_map
5459 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5460
5461 cx.notify();
5462 return;
5463 }
5464 }
5465 }
5466 }
5467
5468 self.discard_inline_completion(false, cx);
5469 }
5470
5471 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5472 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5473 }
5474
5475 fn render_code_actions_indicator(
5476 &self,
5477 _style: &EditorStyle,
5478 row: DisplayRow,
5479 is_active: bool,
5480 cx: &mut ViewContext<Self>,
5481 ) -> Option<IconButton> {
5482 if self.available_code_actions.is_some() {
5483 Some(
5484 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5485 .shape(ui::IconButtonShape::Square)
5486 .icon_size(IconSize::XSmall)
5487 .icon_color(Color::Muted)
5488 .selected(is_active)
5489 .tooltip({
5490 let focus_handle = self.focus_handle.clone();
5491 move |cx| {
5492 Tooltip::for_action_in(
5493 "Toggle Code Actions",
5494 &ToggleCodeActions {
5495 deployed_from_indicator: None,
5496 },
5497 &focus_handle,
5498 cx,
5499 )
5500 }
5501 })
5502 .on_click(cx.listener(move |editor, _e, cx| {
5503 editor.focus(cx);
5504 editor.toggle_code_actions(
5505 &ToggleCodeActions {
5506 deployed_from_indicator: Some(row),
5507 },
5508 cx,
5509 );
5510 })),
5511 )
5512 } else {
5513 None
5514 }
5515 }
5516
5517 fn clear_tasks(&mut self) {
5518 self.tasks.clear()
5519 }
5520
5521 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5522 if self.tasks.insert(key, value).is_some() {
5523 // This case should hopefully be rare, but just in case...
5524 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5525 }
5526 }
5527
5528 fn build_tasks_context(
5529 project: &Model<Project>,
5530 buffer: &Model<Buffer>,
5531 buffer_row: u32,
5532 tasks: &Arc<RunnableTasks>,
5533 cx: &mut ViewContext<Self>,
5534 ) -> Task<Option<task::TaskContext>> {
5535 let position = Point::new(buffer_row, tasks.column);
5536 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5537 let location = Location {
5538 buffer: buffer.clone(),
5539 range: range_start..range_start,
5540 };
5541 // Fill in the environmental variables from the tree-sitter captures
5542 let mut captured_task_variables = TaskVariables::default();
5543 for (capture_name, value) in tasks.extra_variables.clone() {
5544 captured_task_variables.insert(
5545 task::VariableName::Custom(capture_name.into()),
5546 value.clone(),
5547 );
5548 }
5549 project.update(cx, |project, cx| {
5550 project.task_store().update(cx, |task_store, cx| {
5551 task_store.task_context_for_location(captured_task_variables, location, cx)
5552 })
5553 })
5554 }
5555
5556 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5557 let Some((workspace, _)) = self.workspace.clone() else {
5558 return;
5559 };
5560 let Some(project) = self.project.clone() else {
5561 return;
5562 };
5563
5564 // Try to find a closest, enclosing node using tree-sitter that has a
5565 // task
5566 let Some((buffer, buffer_row, tasks)) = self
5567 .find_enclosing_node_task(cx)
5568 // Or find the task that's closest in row-distance.
5569 .or_else(|| self.find_closest_task(cx))
5570 else {
5571 return;
5572 };
5573
5574 let reveal_strategy = action.reveal;
5575 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5576 cx.spawn(|_, mut cx| async move {
5577 let context = task_context.await?;
5578 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5579
5580 let resolved = resolved_task.resolved.as_mut()?;
5581 resolved.reveal = reveal_strategy;
5582
5583 workspace
5584 .update(&mut cx, |workspace, cx| {
5585 workspace::tasks::schedule_resolved_task(
5586 workspace,
5587 task_source_kind,
5588 resolved_task,
5589 false,
5590 cx,
5591 );
5592 })
5593 .ok()
5594 })
5595 .detach();
5596 }
5597
5598 fn find_closest_task(
5599 &mut self,
5600 cx: &mut ViewContext<Self>,
5601 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5602 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5603
5604 let ((buffer_id, row), tasks) = self
5605 .tasks
5606 .iter()
5607 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5608
5609 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5610 let tasks = Arc::new(tasks.to_owned());
5611 Some((buffer, *row, tasks))
5612 }
5613
5614 fn find_enclosing_node_task(
5615 &mut self,
5616 cx: &mut ViewContext<Self>,
5617 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5618 let snapshot = self.buffer.read(cx).snapshot(cx);
5619 let offset = self.selections.newest::<usize>(cx).head();
5620 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5621 let buffer_id = excerpt.buffer().remote_id();
5622
5623 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5624 let mut cursor = layer.node().walk();
5625
5626 while cursor.goto_first_child_for_byte(offset).is_some() {
5627 if cursor.node().end_byte() == offset {
5628 cursor.goto_next_sibling();
5629 }
5630 }
5631
5632 // Ascend to the smallest ancestor that contains the range and has a task.
5633 loop {
5634 let node = cursor.node();
5635 let node_range = node.byte_range();
5636 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5637
5638 // Check if this node contains our offset
5639 if node_range.start <= offset && node_range.end >= offset {
5640 // If it contains offset, check for task
5641 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5642 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5643 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5644 }
5645 }
5646
5647 if !cursor.goto_parent() {
5648 break;
5649 }
5650 }
5651 None
5652 }
5653
5654 fn render_run_indicator(
5655 &self,
5656 _style: &EditorStyle,
5657 is_active: bool,
5658 row: DisplayRow,
5659 cx: &mut ViewContext<Self>,
5660 ) -> IconButton {
5661 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5662 .shape(ui::IconButtonShape::Square)
5663 .icon_size(IconSize::XSmall)
5664 .icon_color(Color::Muted)
5665 .selected(is_active)
5666 .on_click(cx.listener(move |editor, _e, cx| {
5667 editor.focus(cx);
5668 editor.toggle_code_actions(
5669 &ToggleCodeActions {
5670 deployed_from_indicator: Some(row),
5671 },
5672 cx,
5673 );
5674 }))
5675 }
5676
5677 pub fn context_menu_visible(&self) -> bool {
5678 self.context_menu
5679 .read()
5680 .as_ref()
5681 .map_or(false, |menu| menu.visible())
5682 }
5683
5684 fn render_context_menu(
5685 &self,
5686 cursor_position: DisplayPoint,
5687 style: &EditorStyle,
5688 max_height: Pixels,
5689 cx: &mut ViewContext<Editor>,
5690 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5691 self.context_menu.read().as_ref().map(|menu| {
5692 menu.render(
5693 cursor_position,
5694 style,
5695 max_height,
5696 self.workspace.as_ref().map(|(w, _)| w.clone()),
5697 cx,
5698 )
5699 })
5700 }
5701
5702 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5703 cx.notify();
5704 self.completion_tasks.clear();
5705 let context_menu = self.context_menu.write().take();
5706 if context_menu.is_some() {
5707 self.update_visible_inline_completion(cx);
5708 }
5709 context_menu
5710 }
5711
5712 fn show_snippet_choices(
5713 &mut self,
5714 choices: &Vec<String>,
5715 selection: Range<Anchor>,
5716 cx: &mut ViewContext<Self>,
5717 ) {
5718 if selection.start.buffer_id.is_none() {
5719 return;
5720 }
5721 let buffer_id = selection.start.buffer_id.unwrap();
5722 let buffer = self.buffer().read(cx).buffer(buffer_id);
5723 let id = post_inc(&mut self.next_completion_id);
5724
5725 if let Some(buffer) = buffer {
5726 *self.context_menu.write() = Some(ContextMenu::Completions(
5727 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer)
5728 .suppress_documentation_resolution(),
5729 ));
5730 }
5731 }
5732
5733 pub fn insert_snippet(
5734 &mut self,
5735 insertion_ranges: &[Range<usize>],
5736 snippet: Snippet,
5737 cx: &mut ViewContext<Self>,
5738 ) -> Result<()> {
5739 struct Tabstop<T> {
5740 is_end_tabstop: bool,
5741 ranges: Vec<Range<T>>,
5742 choices: Option<Vec<String>>,
5743 }
5744
5745 let tabstops = self.buffer.update(cx, |buffer, cx| {
5746 let snippet_text: Arc<str> = snippet.text.clone().into();
5747 buffer.edit(
5748 insertion_ranges
5749 .iter()
5750 .cloned()
5751 .map(|range| (range, snippet_text.clone())),
5752 Some(AutoindentMode::EachLine),
5753 cx,
5754 );
5755
5756 let snapshot = &*buffer.read(cx);
5757 let snippet = &snippet;
5758 snippet
5759 .tabstops
5760 .iter()
5761 .map(|tabstop| {
5762 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5763 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5764 });
5765 let mut tabstop_ranges = tabstop
5766 .ranges
5767 .iter()
5768 .flat_map(|tabstop_range| {
5769 let mut delta = 0_isize;
5770 insertion_ranges.iter().map(move |insertion_range| {
5771 let insertion_start = insertion_range.start as isize + delta;
5772 delta +=
5773 snippet.text.len() as isize - insertion_range.len() as isize;
5774
5775 let start = ((insertion_start + tabstop_range.start) as usize)
5776 .min(snapshot.len());
5777 let end = ((insertion_start + tabstop_range.end) as usize)
5778 .min(snapshot.len());
5779 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5780 })
5781 })
5782 .collect::<Vec<_>>();
5783 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5784
5785 Tabstop {
5786 is_end_tabstop,
5787 ranges: tabstop_ranges,
5788 choices: tabstop.choices.clone(),
5789 }
5790 })
5791 .collect::<Vec<_>>()
5792 });
5793 if let Some(tabstop) = tabstops.first() {
5794 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5795 s.select_ranges(tabstop.ranges.iter().cloned());
5796 });
5797
5798 if let Some(choices) = &tabstop.choices {
5799 if let Some(selection) = tabstop.ranges.first() {
5800 self.show_snippet_choices(choices, selection.clone(), cx)
5801 }
5802 }
5803
5804 // If we're already at the last tabstop and it's at the end of the snippet,
5805 // we're done, we don't need to keep the state around.
5806 if !tabstop.is_end_tabstop {
5807 let choices = tabstops
5808 .iter()
5809 .map(|tabstop| tabstop.choices.clone())
5810 .collect();
5811
5812 let ranges = tabstops
5813 .into_iter()
5814 .map(|tabstop| tabstop.ranges)
5815 .collect::<Vec<_>>();
5816
5817 self.snippet_stack.push(SnippetState {
5818 active_index: 0,
5819 ranges,
5820 choices,
5821 });
5822 }
5823
5824 // Check whether the just-entered snippet ends with an auto-closable bracket.
5825 if self.autoclose_regions.is_empty() {
5826 let snapshot = self.buffer.read(cx).snapshot(cx);
5827 for selection in &mut self.selections.all::<Point>(cx) {
5828 let selection_head = selection.head();
5829 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5830 continue;
5831 };
5832
5833 let mut bracket_pair = None;
5834 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5835 let prev_chars = snapshot
5836 .reversed_chars_at(selection_head)
5837 .collect::<String>();
5838 for (pair, enabled) in scope.brackets() {
5839 if enabled
5840 && pair.close
5841 && prev_chars.starts_with(pair.start.as_str())
5842 && next_chars.starts_with(pair.end.as_str())
5843 {
5844 bracket_pair = Some(pair.clone());
5845 break;
5846 }
5847 }
5848 if let Some(pair) = bracket_pair {
5849 let start = snapshot.anchor_after(selection_head);
5850 let end = snapshot.anchor_after(selection_head);
5851 self.autoclose_regions.push(AutocloseRegion {
5852 selection_id: selection.id,
5853 range: start..end,
5854 pair,
5855 });
5856 }
5857 }
5858 }
5859 }
5860 Ok(())
5861 }
5862
5863 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5864 self.move_to_snippet_tabstop(Bias::Right, cx)
5865 }
5866
5867 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5868 self.move_to_snippet_tabstop(Bias::Left, cx)
5869 }
5870
5871 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5872 if let Some(mut snippet) = self.snippet_stack.pop() {
5873 match bias {
5874 Bias::Left => {
5875 if snippet.active_index > 0 {
5876 snippet.active_index -= 1;
5877 } else {
5878 self.snippet_stack.push(snippet);
5879 return false;
5880 }
5881 }
5882 Bias::Right => {
5883 if snippet.active_index + 1 < snippet.ranges.len() {
5884 snippet.active_index += 1;
5885 } else {
5886 self.snippet_stack.push(snippet);
5887 return false;
5888 }
5889 }
5890 }
5891 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5892 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5893 s.select_anchor_ranges(current_ranges.iter().cloned())
5894 });
5895
5896 if let Some(choices) = &snippet.choices[snippet.active_index] {
5897 if let Some(selection) = current_ranges.first() {
5898 self.show_snippet_choices(&choices, selection.clone(), cx);
5899 }
5900 }
5901
5902 // If snippet state is not at the last tabstop, push it back on the stack
5903 if snippet.active_index + 1 < snippet.ranges.len() {
5904 self.snippet_stack.push(snippet);
5905 }
5906 return true;
5907 }
5908 }
5909
5910 false
5911 }
5912
5913 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5914 self.transact(cx, |this, cx| {
5915 this.select_all(&SelectAll, cx);
5916 this.insert("", cx);
5917 });
5918 }
5919
5920 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5921 self.transact(cx, |this, cx| {
5922 this.select_autoclose_pair(cx);
5923 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5924 if !this.linked_edit_ranges.is_empty() {
5925 let selections = this.selections.all::<MultiBufferPoint>(cx);
5926 let snapshot = this.buffer.read(cx).snapshot(cx);
5927
5928 for selection in selections.iter() {
5929 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5930 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5931 if selection_start.buffer_id != selection_end.buffer_id {
5932 continue;
5933 }
5934 if let Some(ranges) =
5935 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5936 {
5937 for (buffer, entries) in ranges {
5938 linked_ranges.entry(buffer).or_default().extend(entries);
5939 }
5940 }
5941 }
5942 }
5943
5944 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5945 if !this.selections.line_mode {
5946 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5947 for selection in &mut selections {
5948 if selection.is_empty() {
5949 let old_head = selection.head();
5950 let mut new_head =
5951 movement::left(&display_map, old_head.to_display_point(&display_map))
5952 .to_point(&display_map);
5953 if let Some((buffer, line_buffer_range)) = display_map
5954 .buffer_snapshot
5955 .buffer_line_for_row(MultiBufferRow(old_head.row))
5956 {
5957 let indent_size =
5958 buffer.indent_size_for_line(line_buffer_range.start.row);
5959 let indent_len = match indent_size.kind {
5960 IndentKind::Space => {
5961 buffer.settings_at(line_buffer_range.start, cx).tab_size
5962 }
5963 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5964 };
5965 if old_head.column <= indent_size.len && old_head.column > 0 {
5966 let indent_len = indent_len.get();
5967 new_head = cmp::min(
5968 new_head,
5969 MultiBufferPoint::new(
5970 old_head.row,
5971 ((old_head.column - 1) / indent_len) * indent_len,
5972 ),
5973 );
5974 }
5975 }
5976
5977 selection.set_head(new_head, SelectionGoal::None);
5978 }
5979 }
5980 }
5981
5982 this.signature_help_state.set_backspace_pressed(true);
5983 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5984 this.insert("", cx);
5985 let empty_str: Arc<str> = Arc::from("");
5986 for (buffer, edits) in linked_ranges {
5987 let snapshot = buffer.read(cx).snapshot();
5988 use text::ToPoint as TP;
5989
5990 let edits = edits
5991 .into_iter()
5992 .map(|range| {
5993 let end_point = TP::to_point(&range.end, &snapshot);
5994 let mut start_point = TP::to_point(&range.start, &snapshot);
5995
5996 if end_point == start_point {
5997 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5998 .saturating_sub(1);
5999 start_point = TP::to_point(&offset, &snapshot);
6000 };
6001
6002 (start_point..end_point, empty_str.clone())
6003 })
6004 .sorted_by_key(|(range, _)| range.start)
6005 .collect::<Vec<_>>();
6006 buffer.update(cx, |this, cx| {
6007 this.edit(edits, None, cx);
6008 })
6009 }
6010 this.refresh_inline_completion(true, false, cx);
6011 linked_editing_ranges::refresh_linked_ranges(this, cx);
6012 });
6013 }
6014
6015 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
6016 self.transact(cx, |this, cx| {
6017 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6018 let line_mode = s.line_mode;
6019 s.move_with(|map, selection| {
6020 if selection.is_empty() && !line_mode {
6021 let cursor = movement::right(map, selection.head());
6022 selection.end = cursor;
6023 selection.reversed = true;
6024 selection.goal = SelectionGoal::None;
6025 }
6026 })
6027 });
6028 this.insert("", cx);
6029 this.refresh_inline_completion(true, false, cx);
6030 });
6031 }
6032
6033 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
6034 if self.move_to_prev_snippet_tabstop(cx) {
6035 return;
6036 }
6037
6038 self.outdent(&Outdent, cx);
6039 }
6040
6041 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
6042 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
6043 return;
6044 }
6045
6046 let mut selections = self.selections.all_adjusted(cx);
6047 let buffer = self.buffer.read(cx);
6048 let snapshot = buffer.snapshot(cx);
6049 let rows_iter = selections.iter().map(|s| s.head().row);
6050 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
6051
6052 let mut edits = Vec::new();
6053 let mut prev_edited_row = 0;
6054 let mut row_delta = 0;
6055 for selection in &mut selections {
6056 if selection.start.row != prev_edited_row {
6057 row_delta = 0;
6058 }
6059 prev_edited_row = selection.end.row;
6060
6061 // If the selection is non-empty, then increase the indentation of the selected lines.
6062 if !selection.is_empty() {
6063 row_delta =
6064 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6065 continue;
6066 }
6067
6068 // If the selection is empty and the cursor is in the leading whitespace before the
6069 // suggested indentation, then auto-indent the line.
6070 let cursor = selection.head();
6071 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
6072 if let Some(suggested_indent) =
6073 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
6074 {
6075 if cursor.column < suggested_indent.len
6076 && cursor.column <= current_indent.len
6077 && current_indent.len <= suggested_indent.len
6078 {
6079 selection.start = Point::new(cursor.row, suggested_indent.len);
6080 selection.end = selection.start;
6081 if row_delta == 0 {
6082 edits.extend(Buffer::edit_for_indent_size_adjustment(
6083 cursor.row,
6084 current_indent,
6085 suggested_indent,
6086 ));
6087 row_delta = suggested_indent.len - current_indent.len;
6088 }
6089 continue;
6090 }
6091 }
6092
6093 // Otherwise, insert a hard or soft tab.
6094 let settings = buffer.settings_at(cursor, cx);
6095 let tab_size = if settings.hard_tabs {
6096 IndentSize::tab()
6097 } else {
6098 let tab_size = settings.tab_size.get();
6099 let char_column = snapshot
6100 .text_for_range(Point::new(cursor.row, 0)..cursor)
6101 .flat_map(str::chars)
6102 .count()
6103 + row_delta as usize;
6104 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
6105 IndentSize::spaces(chars_to_next_tab_stop)
6106 };
6107 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
6108 selection.end = selection.start;
6109 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
6110 row_delta += tab_size.len;
6111 }
6112
6113 self.transact(cx, |this, cx| {
6114 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6115 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6116 this.refresh_inline_completion(true, false, cx);
6117 });
6118 }
6119
6120 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
6121 if self.read_only(cx) {
6122 return;
6123 }
6124 let mut selections = self.selections.all::<Point>(cx);
6125 let mut prev_edited_row = 0;
6126 let mut row_delta = 0;
6127 let mut edits = Vec::new();
6128 let buffer = self.buffer.read(cx);
6129 let snapshot = buffer.snapshot(cx);
6130 for selection in &mut selections {
6131 if selection.start.row != prev_edited_row {
6132 row_delta = 0;
6133 }
6134 prev_edited_row = selection.end.row;
6135
6136 row_delta =
6137 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6138 }
6139
6140 self.transact(cx, |this, cx| {
6141 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6142 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6143 });
6144 }
6145
6146 fn indent_selection(
6147 buffer: &MultiBuffer,
6148 snapshot: &MultiBufferSnapshot,
6149 selection: &mut Selection<Point>,
6150 edits: &mut Vec<(Range<Point>, String)>,
6151 delta_for_start_row: u32,
6152 cx: &AppContext,
6153 ) -> u32 {
6154 let settings = buffer.settings_at(selection.start, cx);
6155 let tab_size = settings.tab_size.get();
6156 let indent_kind = if settings.hard_tabs {
6157 IndentKind::Tab
6158 } else {
6159 IndentKind::Space
6160 };
6161 let mut start_row = selection.start.row;
6162 let mut end_row = selection.end.row + 1;
6163
6164 // If a selection ends at the beginning of a line, don't indent
6165 // that last line.
6166 if selection.end.column == 0 && selection.end.row > selection.start.row {
6167 end_row -= 1;
6168 }
6169
6170 // Avoid re-indenting a row that has already been indented by a
6171 // previous selection, but still update this selection's column
6172 // to reflect that indentation.
6173 if delta_for_start_row > 0 {
6174 start_row += 1;
6175 selection.start.column += delta_for_start_row;
6176 if selection.end.row == selection.start.row {
6177 selection.end.column += delta_for_start_row;
6178 }
6179 }
6180
6181 let mut delta_for_end_row = 0;
6182 let has_multiple_rows = start_row + 1 != end_row;
6183 for row in start_row..end_row {
6184 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6185 let indent_delta = match (current_indent.kind, indent_kind) {
6186 (IndentKind::Space, IndentKind::Space) => {
6187 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6188 IndentSize::spaces(columns_to_next_tab_stop)
6189 }
6190 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6191 (_, IndentKind::Tab) => IndentSize::tab(),
6192 };
6193
6194 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6195 0
6196 } else {
6197 selection.start.column
6198 };
6199 let row_start = Point::new(row, start);
6200 edits.push((
6201 row_start..row_start,
6202 indent_delta.chars().collect::<String>(),
6203 ));
6204
6205 // Update this selection's endpoints to reflect the indentation.
6206 if row == selection.start.row {
6207 selection.start.column += indent_delta.len;
6208 }
6209 if row == selection.end.row {
6210 selection.end.column += indent_delta.len;
6211 delta_for_end_row = indent_delta.len;
6212 }
6213 }
6214
6215 if selection.start.row == selection.end.row {
6216 delta_for_start_row + delta_for_end_row
6217 } else {
6218 delta_for_end_row
6219 }
6220 }
6221
6222 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6223 if self.read_only(cx) {
6224 return;
6225 }
6226 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6227 let selections = self.selections.all::<Point>(cx);
6228 let mut deletion_ranges = Vec::new();
6229 let mut last_outdent = None;
6230 {
6231 let buffer = self.buffer.read(cx);
6232 let snapshot = buffer.snapshot(cx);
6233 for selection in &selections {
6234 let settings = buffer.settings_at(selection.start, cx);
6235 let tab_size = settings.tab_size.get();
6236 let mut rows = selection.spanned_rows(false, &display_map);
6237
6238 // Avoid re-outdenting a row that has already been outdented by a
6239 // previous selection.
6240 if let Some(last_row) = last_outdent {
6241 if last_row == rows.start {
6242 rows.start = rows.start.next_row();
6243 }
6244 }
6245 let has_multiple_rows = rows.len() > 1;
6246 for row in rows.iter_rows() {
6247 let indent_size = snapshot.indent_size_for_line(row);
6248 if indent_size.len > 0 {
6249 let deletion_len = match indent_size.kind {
6250 IndentKind::Space => {
6251 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6252 if columns_to_prev_tab_stop == 0 {
6253 tab_size
6254 } else {
6255 columns_to_prev_tab_stop
6256 }
6257 }
6258 IndentKind::Tab => 1,
6259 };
6260 let start = if has_multiple_rows
6261 || deletion_len > selection.start.column
6262 || indent_size.len < selection.start.column
6263 {
6264 0
6265 } else {
6266 selection.start.column - deletion_len
6267 };
6268 deletion_ranges.push(
6269 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6270 );
6271 last_outdent = Some(row);
6272 }
6273 }
6274 }
6275 }
6276
6277 self.transact(cx, |this, cx| {
6278 this.buffer.update(cx, |buffer, cx| {
6279 let empty_str: Arc<str> = Arc::default();
6280 buffer.edit(
6281 deletion_ranges
6282 .into_iter()
6283 .map(|range| (range, empty_str.clone())),
6284 None,
6285 cx,
6286 );
6287 });
6288 let selections = this.selections.all::<usize>(cx);
6289 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6290 });
6291 }
6292
6293 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
6294 if self.read_only(cx) {
6295 return;
6296 }
6297 let selections = self
6298 .selections
6299 .all::<usize>(cx)
6300 .into_iter()
6301 .map(|s| s.range());
6302
6303 self.transact(cx, |this, cx| {
6304 this.buffer.update(cx, |buffer, cx| {
6305 buffer.autoindent_ranges(selections, cx);
6306 });
6307 let selections = this.selections.all::<usize>(cx);
6308 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6309 });
6310 }
6311
6312 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6313 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6314 let selections = self.selections.all::<Point>(cx);
6315
6316 let mut new_cursors = Vec::new();
6317 let mut edit_ranges = Vec::new();
6318 let mut selections = selections.iter().peekable();
6319 while let Some(selection) = selections.next() {
6320 let mut rows = selection.spanned_rows(false, &display_map);
6321 let goal_display_column = selection.head().to_display_point(&display_map).column();
6322
6323 // Accumulate contiguous regions of rows that we want to delete.
6324 while let Some(next_selection) = selections.peek() {
6325 let next_rows = next_selection.spanned_rows(false, &display_map);
6326 if next_rows.start <= rows.end {
6327 rows.end = next_rows.end;
6328 selections.next().unwrap();
6329 } else {
6330 break;
6331 }
6332 }
6333
6334 let buffer = &display_map.buffer_snapshot;
6335 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6336 let edit_end;
6337 let cursor_buffer_row;
6338 if buffer.max_point().row >= rows.end.0 {
6339 // If there's a line after the range, delete the \n from the end of the row range
6340 // and position the cursor on the next line.
6341 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6342 cursor_buffer_row = rows.end;
6343 } else {
6344 // If there isn't a line after the range, delete the \n from the line before the
6345 // start of the row range and position the cursor there.
6346 edit_start = edit_start.saturating_sub(1);
6347 edit_end = buffer.len();
6348 cursor_buffer_row = rows.start.previous_row();
6349 }
6350
6351 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6352 *cursor.column_mut() =
6353 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6354
6355 new_cursors.push((
6356 selection.id,
6357 buffer.anchor_after(cursor.to_point(&display_map)),
6358 ));
6359 edit_ranges.push(edit_start..edit_end);
6360 }
6361
6362 self.transact(cx, |this, cx| {
6363 let buffer = this.buffer.update(cx, |buffer, cx| {
6364 let empty_str: Arc<str> = Arc::default();
6365 buffer.edit(
6366 edit_ranges
6367 .into_iter()
6368 .map(|range| (range, empty_str.clone())),
6369 None,
6370 cx,
6371 );
6372 buffer.snapshot(cx)
6373 });
6374 let new_selections = new_cursors
6375 .into_iter()
6376 .map(|(id, cursor)| {
6377 let cursor = cursor.to_point(&buffer);
6378 Selection {
6379 id,
6380 start: cursor,
6381 end: cursor,
6382 reversed: false,
6383 goal: SelectionGoal::None,
6384 }
6385 })
6386 .collect();
6387
6388 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6389 s.select(new_selections);
6390 });
6391 });
6392 }
6393
6394 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6395 if self.read_only(cx) {
6396 return;
6397 }
6398 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6399 for selection in self.selections.all::<Point>(cx) {
6400 let start = MultiBufferRow(selection.start.row);
6401 // Treat single line selections as if they include the next line. Otherwise this action
6402 // would do nothing for single line selections individual cursors.
6403 let end = if selection.start.row == selection.end.row {
6404 MultiBufferRow(selection.start.row + 1)
6405 } else {
6406 MultiBufferRow(selection.end.row)
6407 };
6408
6409 if let Some(last_row_range) = row_ranges.last_mut() {
6410 if start <= last_row_range.end {
6411 last_row_range.end = end;
6412 continue;
6413 }
6414 }
6415 row_ranges.push(start..end);
6416 }
6417
6418 let snapshot = self.buffer.read(cx).snapshot(cx);
6419 let mut cursor_positions = Vec::new();
6420 for row_range in &row_ranges {
6421 let anchor = snapshot.anchor_before(Point::new(
6422 row_range.end.previous_row().0,
6423 snapshot.line_len(row_range.end.previous_row()),
6424 ));
6425 cursor_positions.push(anchor..anchor);
6426 }
6427
6428 self.transact(cx, |this, cx| {
6429 for row_range in row_ranges.into_iter().rev() {
6430 for row in row_range.iter_rows().rev() {
6431 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6432 let next_line_row = row.next_row();
6433 let indent = snapshot.indent_size_for_line(next_line_row);
6434 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6435
6436 let replace = if snapshot.line_len(next_line_row) > indent.len {
6437 " "
6438 } else {
6439 ""
6440 };
6441
6442 this.buffer.update(cx, |buffer, cx| {
6443 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6444 });
6445 }
6446 }
6447
6448 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6449 s.select_anchor_ranges(cursor_positions)
6450 });
6451 });
6452 }
6453
6454 pub fn sort_lines_case_sensitive(
6455 &mut self,
6456 _: &SortLinesCaseSensitive,
6457 cx: &mut ViewContext<Self>,
6458 ) {
6459 self.manipulate_lines(cx, |lines| lines.sort())
6460 }
6461
6462 pub fn sort_lines_case_insensitive(
6463 &mut self,
6464 _: &SortLinesCaseInsensitive,
6465 cx: &mut ViewContext<Self>,
6466 ) {
6467 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6468 }
6469
6470 pub fn unique_lines_case_insensitive(
6471 &mut self,
6472 _: &UniqueLinesCaseInsensitive,
6473 cx: &mut ViewContext<Self>,
6474 ) {
6475 self.manipulate_lines(cx, |lines| {
6476 let mut seen = HashSet::default();
6477 lines.retain(|line| seen.insert(line.to_lowercase()));
6478 })
6479 }
6480
6481 pub fn unique_lines_case_sensitive(
6482 &mut self,
6483 _: &UniqueLinesCaseSensitive,
6484 cx: &mut ViewContext<Self>,
6485 ) {
6486 self.manipulate_lines(cx, |lines| {
6487 let mut seen = HashSet::default();
6488 lines.retain(|line| seen.insert(*line));
6489 })
6490 }
6491
6492 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6493 let mut revert_changes = HashMap::default();
6494 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6495 for hunk in hunks_for_rows(
6496 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_row()).into_iter(),
6497 &multi_buffer_snapshot,
6498 ) {
6499 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6500 }
6501 if !revert_changes.is_empty() {
6502 self.transact(cx, |editor, cx| {
6503 editor.revert(revert_changes, cx);
6504 });
6505 }
6506 }
6507
6508 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6509 let Some(project) = self.project.clone() else {
6510 return;
6511 };
6512 self.reload(project, cx).detach_and_notify_err(cx);
6513 }
6514
6515 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6516 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6517 if !revert_changes.is_empty() {
6518 self.transact(cx, |editor, cx| {
6519 editor.revert(revert_changes, cx);
6520 });
6521 }
6522 }
6523
6524 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6525 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6526 let project_path = buffer.read(cx).project_path(cx)?;
6527 let project = self.project.as_ref()?.read(cx);
6528 let entry = project.entry_for_path(&project_path, cx)?;
6529 let parent = match &entry.canonical_path {
6530 Some(canonical_path) => canonical_path.to_path_buf(),
6531 None => project.absolute_path(&project_path, cx)?,
6532 }
6533 .parent()?
6534 .to_path_buf();
6535 Some(parent)
6536 }) {
6537 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6538 }
6539 }
6540
6541 fn gather_revert_changes(
6542 &mut self,
6543 selections: &[Selection<Anchor>],
6544 cx: &mut ViewContext<'_, Editor>,
6545 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6546 let mut revert_changes = HashMap::default();
6547 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6548 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6549 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6550 }
6551 revert_changes
6552 }
6553
6554 pub fn prepare_revert_change(
6555 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6556 multi_buffer: &Model<MultiBuffer>,
6557 hunk: &MultiBufferDiffHunk,
6558 cx: &AppContext,
6559 ) -> Option<()> {
6560 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6561 let buffer = buffer.read(cx);
6562 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6563 let buffer_snapshot = buffer.snapshot();
6564 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6565 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6566 probe
6567 .0
6568 .start
6569 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6570 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6571 }) {
6572 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6573 Some(())
6574 } else {
6575 None
6576 }
6577 }
6578
6579 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6580 self.manipulate_lines(cx, |lines| lines.reverse())
6581 }
6582
6583 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6584 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6585 }
6586
6587 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6588 where
6589 Fn: FnMut(&mut Vec<&str>),
6590 {
6591 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6592 let buffer = self.buffer.read(cx).snapshot(cx);
6593
6594 let mut edits = Vec::new();
6595
6596 let selections = self.selections.all::<Point>(cx);
6597 let mut selections = selections.iter().peekable();
6598 let mut contiguous_row_selections = Vec::new();
6599 let mut new_selections = Vec::new();
6600 let mut added_lines = 0;
6601 let mut removed_lines = 0;
6602
6603 while let Some(selection) = selections.next() {
6604 let (start_row, end_row) = consume_contiguous_rows(
6605 &mut contiguous_row_selections,
6606 selection,
6607 &display_map,
6608 &mut selections,
6609 );
6610
6611 let start_point = Point::new(start_row.0, 0);
6612 let end_point = Point::new(
6613 end_row.previous_row().0,
6614 buffer.line_len(end_row.previous_row()),
6615 );
6616 let text = buffer
6617 .text_for_range(start_point..end_point)
6618 .collect::<String>();
6619
6620 let mut lines = text.split('\n').collect_vec();
6621
6622 let lines_before = lines.len();
6623 callback(&mut lines);
6624 let lines_after = lines.len();
6625
6626 edits.push((start_point..end_point, lines.join("\n")));
6627
6628 // Selections must change based on added and removed line count
6629 let start_row =
6630 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6631 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6632 new_selections.push(Selection {
6633 id: selection.id,
6634 start: start_row,
6635 end: end_row,
6636 goal: SelectionGoal::None,
6637 reversed: selection.reversed,
6638 });
6639
6640 if lines_after > lines_before {
6641 added_lines += lines_after - lines_before;
6642 } else if lines_before > lines_after {
6643 removed_lines += lines_before - lines_after;
6644 }
6645 }
6646
6647 self.transact(cx, |this, cx| {
6648 let buffer = this.buffer.update(cx, |buffer, cx| {
6649 buffer.edit(edits, None, cx);
6650 buffer.snapshot(cx)
6651 });
6652
6653 // Recalculate offsets on newly edited buffer
6654 let new_selections = new_selections
6655 .iter()
6656 .map(|s| {
6657 let start_point = Point::new(s.start.0, 0);
6658 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6659 Selection {
6660 id: s.id,
6661 start: buffer.point_to_offset(start_point),
6662 end: buffer.point_to_offset(end_point),
6663 goal: s.goal,
6664 reversed: s.reversed,
6665 }
6666 })
6667 .collect();
6668
6669 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6670 s.select(new_selections);
6671 });
6672
6673 this.request_autoscroll(Autoscroll::fit(), cx);
6674 });
6675 }
6676
6677 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6678 self.manipulate_text(cx, |text| text.to_uppercase())
6679 }
6680
6681 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6682 self.manipulate_text(cx, |text| text.to_lowercase())
6683 }
6684
6685 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6686 self.manipulate_text(cx, |text| {
6687 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6688 // https://github.com/rutrum/convert-case/issues/16
6689 text.split('\n')
6690 .map(|line| line.to_case(Case::Title))
6691 .join("\n")
6692 })
6693 }
6694
6695 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6696 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6697 }
6698
6699 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6700 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6701 }
6702
6703 pub fn convert_to_upper_camel_case(
6704 &mut self,
6705 _: &ConvertToUpperCamelCase,
6706 cx: &mut ViewContext<Self>,
6707 ) {
6708 self.manipulate_text(cx, |text| {
6709 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6710 // https://github.com/rutrum/convert-case/issues/16
6711 text.split('\n')
6712 .map(|line| line.to_case(Case::UpperCamel))
6713 .join("\n")
6714 })
6715 }
6716
6717 pub fn convert_to_lower_camel_case(
6718 &mut self,
6719 _: &ConvertToLowerCamelCase,
6720 cx: &mut ViewContext<Self>,
6721 ) {
6722 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6723 }
6724
6725 pub fn convert_to_opposite_case(
6726 &mut self,
6727 _: &ConvertToOppositeCase,
6728 cx: &mut ViewContext<Self>,
6729 ) {
6730 self.manipulate_text(cx, |text| {
6731 text.chars()
6732 .fold(String::with_capacity(text.len()), |mut t, c| {
6733 if c.is_uppercase() {
6734 t.extend(c.to_lowercase());
6735 } else {
6736 t.extend(c.to_uppercase());
6737 }
6738 t
6739 })
6740 })
6741 }
6742
6743 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6744 where
6745 Fn: FnMut(&str) -> String,
6746 {
6747 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6748 let buffer = self.buffer.read(cx).snapshot(cx);
6749
6750 let mut new_selections = Vec::new();
6751 let mut edits = Vec::new();
6752 let mut selection_adjustment = 0i32;
6753
6754 for selection in self.selections.all::<usize>(cx) {
6755 let selection_is_empty = selection.is_empty();
6756
6757 let (start, end) = if selection_is_empty {
6758 let word_range = movement::surrounding_word(
6759 &display_map,
6760 selection.start.to_display_point(&display_map),
6761 );
6762 let start = word_range.start.to_offset(&display_map, Bias::Left);
6763 let end = word_range.end.to_offset(&display_map, Bias::Left);
6764 (start, end)
6765 } else {
6766 (selection.start, selection.end)
6767 };
6768
6769 let text = buffer.text_for_range(start..end).collect::<String>();
6770 let old_length = text.len() as i32;
6771 let text = callback(&text);
6772
6773 new_selections.push(Selection {
6774 start: (start as i32 - selection_adjustment) as usize,
6775 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6776 goal: SelectionGoal::None,
6777 ..selection
6778 });
6779
6780 selection_adjustment += old_length - text.len() as i32;
6781
6782 edits.push((start..end, text));
6783 }
6784
6785 self.transact(cx, |this, cx| {
6786 this.buffer.update(cx, |buffer, cx| {
6787 buffer.edit(edits, None, cx);
6788 });
6789
6790 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6791 s.select(new_selections);
6792 });
6793
6794 this.request_autoscroll(Autoscroll::fit(), cx);
6795 });
6796 }
6797
6798 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6799 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6800 let buffer = &display_map.buffer_snapshot;
6801 let selections = self.selections.all::<Point>(cx);
6802
6803 let mut edits = Vec::new();
6804 let mut selections_iter = selections.iter().peekable();
6805 while let Some(selection) = selections_iter.next() {
6806 // Avoid duplicating the same lines twice.
6807 let mut rows = selection.spanned_rows(false, &display_map);
6808
6809 while let Some(next_selection) = selections_iter.peek() {
6810 let next_rows = next_selection.spanned_rows(false, &display_map);
6811 if next_rows.start < rows.end {
6812 rows.end = next_rows.end;
6813 selections_iter.next().unwrap();
6814 } else {
6815 break;
6816 }
6817 }
6818
6819 // Copy the text from the selected row region and splice it either at the start
6820 // or end of the region.
6821 let start = Point::new(rows.start.0, 0);
6822 let end = Point::new(
6823 rows.end.previous_row().0,
6824 buffer.line_len(rows.end.previous_row()),
6825 );
6826 let text = buffer
6827 .text_for_range(start..end)
6828 .chain(Some("\n"))
6829 .collect::<String>();
6830 let insert_location = if upwards {
6831 Point::new(rows.end.0, 0)
6832 } else {
6833 start
6834 };
6835 edits.push((insert_location..insert_location, text));
6836 }
6837
6838 self.transact(cx, |this, cx| {
6839 this.buffer.update(cx, |buffer, cx| {
6840 buffer.edit(edits, None, cx);
6841 });
6842
6843 this.request_autoscroll(Autoscroll::fit(), cx);
6844 });
6845 }
6846
6847 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6848 self.duplicate_line(true, cx);
6849 }
6850
6851 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6852 self.duplicate_line(false, cx);
6853 }
6854
6855 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6856 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6857 let buffer = self.buffer.read(cx).snapshot(cx);
6858
6859 let mut edits = Vec::new();
6860 let mut unfold_ranges = Vec::new();
6861 let mut refold_creases = Vec::new();
6862
6863 let selections = self.selections.all::<Point>(cx);
6864 let mut selections = selections.iter().peekable();
6865 let mut contiguous_row_selections = Vec::new();
6866 let mut new_selections = Vec::new();
6867
6868 while let Some(selection) = selections.next() {
6869 // Find all the selections that span a contiguous row range
6870 let (start_row, end_row) = consume_contiguous_rows(
6871 &mut contiguous_row_selections,
6872 selection,
6873 &display_map,
6874 &mut selections,
6875 );
6876
6877 // Move the text spanned by the row range to be before the line preceding the row range
6878 if start_row.0 > 0 {
6879 let range_to_move = Point::new(
6880 start_row.previous_row().0,
6881 buffer.line_len(start_row.previous_row()),
6882 )
6883 ..Point::new(
6884 end_row.previous_row().0,
6885 buffer.line_len(end_row.previous_row()),
6886 );
6887 let insertion_point = display_map
6888 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6889 .0;
6890
6891 // Don't move lines across excerpts
6892 if buffer
6893 .excerpt_boundaries_in_range((
6894 Bound::Excluded(insertion_point),
6895 Bound::Included(range_to_move.end),
6896 ))
6897 .next()
6898 .is_none()
6899 {
6900 let text = buffer
6901 .text_for_range(range_to_move.clone())
6902 .flat_map(|s| s.chars())
6903 .skip(1)
6904 .chain(['\n'])
6905 .collect::<String>();
6906
6907 edits.push((
6908 buffer.anchor_after(range_to_move.start)
6909 ..buffer.anchor_before(range_to_move.end),
6910 String::new(),
6911 ));
6912 let insertion_anchor = buffer.anchor_after(insertion_point);
6913 edits.push((insertion_anchor..insertion_anchor, text));
6914
6915 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6916
6917 // Move selections up
6918 new_selections.extend(contiguous_row_selections.drain(..).map(
6919 |mut selection| {
6920 selection.start.row -= row_delta;
6921 selection.end.row -= row_delta;
6922 selection
6923 },
6924 ));
6925
6926 // Move folds up
6927 unfold_ranges.push(range_to_move.clone());
6928 for fold in display_map.folds_in_range(
6929 buffer.anchor_before(range_to_move.start)
6930 ..buffer.anchor_after(range_to_move.end),
6931 ) {
6932 let mut start = fold.range.start.to_point(&buffer);
6933 let mut end = fold.range.end.to_point(&buffer);
6934 start.row -= row_delta;
6935 end.row -= row_delta;
6936 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6937 }
6938 }
6939 }
6940
6941 // If we didn't move line(s), preserve the existing selections
6942 new_selections.append(&mut contiguous_row_selections);
6943 }
6944
6945 self.transact(cx, |this, cx| {
6946 this.unfold_ranges(&unfold_ranges, true, true, cx);
6947 this.buffer.update(cx, |buffer, cx| {
6948 for (range, text) in edits {
6949 buffer.edit([(range, text)], None, cx);
6950 }
6951 });
6952 this.fold_creases(refold_creases, true, cx);
6953 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6954 s.select(new_selections);
6955 })
6956 });
6957 }
6958
6959 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6960 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6961 let buffer = self.buffer.read(cx).snapshot(cx);
6962
6963 let mut edits = Vec::new();
6964 let mut unfold_ranges = Vec::new();
6965 let mut refold_creases = Vec::new();
6966
6967 let selections = self.selections.all::<Point>(cx);
6968 let mut selections = selections.iter().peekable();
6969 let mut contiguous_row_selections = Vec::new();
6970 let mut new_selections = Vec::new();
6971
6972 while let Some(selection) = selections.next() {
6973 // Find all the selections that span a contiguous row range
6974 let (start_row, end_row) = consume_contiguous_rows(
6975 &mut contiguous_row_selections,
6976 selection,
6977 &display_map,
6978 &mut selections,
6979 );
6980
6981 // Move the text spanned by the row range to be after the last line of the row range
6982 if end_row.0 <= buffer.max_point().row {
6983 let range_to_move =
6984 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6985 let insertion_point = display_map
6986 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6987 .0;
6988
6989 // Don't move lines across excerpt boundaries
6990 if buffer
6991 .excerpt_boundaries_in_range((
6992 Bound::Excluded(range_to_move.start),
6993 Bound::Included(insertion_point),
6994 ))
6995 .next()
6996 .is_none()
6997 {
6998 let mut text = String::from("\n");
6999 text.extend(buffer.text_for_range(range_to_move.clone()));
7000 text.pop(); // Drop trailing newline
7001 edits.push((
7002 buffer.anchor_after(range_to_move.start)
7003 ..buffer.anchor_before(range_to_move.end),
7004 String::new(),
7005 ));
7006 let insertion_anchor = buffer.anchor_after(insertion_point);
7007 edits.push((insertion_anchor..insertion_anchor, text));
7008
7009 let row_delta = insertion_point.row - range_to_move.end.row + 1;
7010
7011 // Move selections down
7012 new_selections.extend(contiguous_row_selections.drain(..).map(
7013 |mut selection| {
7014 selection.start.row += row_delta;
7015 selection.end.row += row_delta;
7016 selection
7017 },
7018 ));
7019
7020 // Move folds down
7021 unfold_ranges.push(range_to_move.clone());
7022 for fold in display_map.folds_in_range(
7023 buffer.anchor_before(range_to_move.start)
7024 ..buffer.anchor_after(range_to_move.end),
7025 ) {
7026 let mut start = fold.range.start.to_point(&buffer);
7027 let mut end = fold.range.end.to_point(&buffer);
7028 start.row += row_delta;
7029 end.row += row_delta;
7030 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
7031 }
7032 }
7033 }
7034
7035 // If we didn't move line(s), preserve the existing selections
7036 new_selections.append(&mut contiguous_row_selections);
7037 }
7038
7039 self.transact(cx, |this, cx| {
7040 this.unfold_ranges(&unfold_ranges, true, true, cx);
7041 this.buffer.update(cx, |buffer, cx| {
7042 for (range, text) in edits {
7043 buffer.edit([(range, text)], None, cx);
7044 }
7045 });
7046 this.fold_creases(refold_creases, true, cx);
7047 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
7048 });
7049 }
7050
7051 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
7052 let text_layout_details = &self.text_layout_details(cx);
7053 self.transact(cx, |this, cx| {
7054 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7055 let mut edits: Vec<(Range<usize>, String)> = Default::default();
7056 let line_mode = s.line_mode;
7057 s.move_with(|display_map, selection| {
7058 if !selection.is_empty() || line_mode {
7059 return;
7060 }
7061
7062 let mut head = selection.head();
7063 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
7064 if head.column() == display_map.line_len(head.row()) {
7065 transpose_offset = display_map
7066 .buffer_snapshot
7067 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7068 }
7069
7070 if transpose_offset == 0 {
7071 return;
7072 }
7073
7074 *head.column_mut() += 1;
7075 head = display_map.clip_point(head, Bias::Right);
7076 let goal = SelectionGoal::HorizontalPosition(
7077 display_map
7078 .x_for_display_point(head, text_layout_details)
7079 .into(),
7080 );
7081 selection.collapse_to(head, goal);
7082
7083 let transpose_start = display_map
7084 .buffer_snapshot
7085 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7086 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
7087 let transpose_end = display_map
7088 .buffer_snapshot
7089 .clip_offset(transpose_offset + 1, Bias::Right);
7090 if let Some(ch) =
7091 display_map.buffer_snapshot.chars_at(transpose_start).next()
7092 {
7093 edits.push((transpose_start..transpose_offset, String::new()));
7094 edits.push((transpose_end..transpose_end, ch.to_string()));
7095 }
7096 }
7097 });
7098 edits
7099 });
7100 this.buffer
7101 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7102 let selections = this.selections.all::<usize>(cx);
7103 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7104 s.select(selections);
7105 });
7106 });
7107 }
7108
7109 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
7110 self.rewrap_impl(IsVimMode::No, cx)
7111 }
7112
7113 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
7114 let buffer = self.buffer.read(cx).snapshot(cx);
7115 let selections = self.selections.all::<Point>(cx);
7116 let mut selections = selections.iter().peekable();
7117
7118 let mut edits = Vec::new();
7119 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
7120
7121 while let Some(selection) = selections.next() {
7122 let mut start_row = selection.start.row;
7123 let mut end_row = selection.end.row;
7124
7125 // Skip selections that overlap with a range that has already been rewrapped.
7126 let selection_range = start_row..end_row;
7127 if rewrapped_row_ranges
7128 .iter()
7129 .any(|range| range.overlaps(&selection_range))
7130 {
7131 continue;
7132 }
7133
7134 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
7135
7136 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7137 match language_scope.language_name().0.as_ref() {
7138 "Markdown" | "Plain Text" => {
7139 should_rewrap = true;
7140 }
7141 _ => {}
7142 }
7143 }
7144
7145 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
7146
7147 // Since not all lines in the selection may be at the same indent
7148 // level, choose the indent size that is the most common between all
7149 // of the lines.
7150 //
7151 // If there is a tie, we use the deepest indent.
7152 let (indent_size, indent_end) = {
7153 let mut indent_size_occurrences = HashMap::default();
7154 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7155
7156 for row in start_row..=end_row {
7157 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7158 rows_by_indent_size.entry(indent).or_default().push(row);
7159 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7160 }
7161
7162 let indent_size = indent_size_occurrences
7163 .into_iter()
7164 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
7165 .map(|(indent, _)| indent)
7166 .unwrap_or_default();
7167 let row = rows_by_indent_size[&indent_size][0];
7168 let indent_end = Point::new(row, indent_size.len);
7169
7170 (indent_size, indent_end)
7171 };
7172
7173 let mut line_prefix = indent_size.chars().collect::<String>();
7174
7175 if let Some(comment_prefix) =
7176 buffer
7177 .language_scope_at(selection.head())
7178 .and_then(|language| {
7179 language
7180 .line_comment_prefixes()
7181 .iter()
7182 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7183 .cloned()
7184 })
7185 {
7186 line_prefix.push_str(&comment_prefix);
7187 should_rewrap = true;
7188 }
7189
7190 if !should_rewrap {
7191 continue;
7192 }
7193
7194 if selection.is_empty() {
7195 'expand_upwards: while start_row > 0 {
7196 let prev_row = start_row - 1;
7197 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7198 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7199 {
7200 start_row = prev_row;
7201 } else {
7202 break 'expand_upwards;
7203 }
7204 }
7205
7206 'expand_downwards: while end_row < buffer.max_point().row {
7207 let next_row = end_row + 1;
7208 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7209 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7210 {
7211 end_row = next_row;
7212 } else {
7213 break 'expand_downwards;
7214 }
7215 }
7216 }
7217
7218 let start = Point::new(start_row, 0);
7219 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7220 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7221 let Some(lines_without_prefixes) = selection_text
7222 .lines()
7223 .map(|line| {
7224 line.strip_prefix(&line_prefix)
7225 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7226 .ok_or_else(|| {
7227 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7228 })
7229 })
7230 .collect::<Result<Vec<_>, _>>()
7231 .log_err()
7232 else {
7233 continue;
7234 };
7235
7236 let wrap_column = buffer
7237 .settings_at(Point::new(start_row, 0), cx)
7238 .preferred_line_length as usize;
7239 let wrapped_text = wrap_with_prefix(
7240 line_prefix,
7241 lines_without_prefixes.join(" "),
7242 wrap_column,
7243 tab_size,
7244 );
7245
7246 // TODO: should always use char-based diff while still supporting cursor behavior that
7247 // matches vim.
7248 let diff = match is_vim_mode {
7249 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
7250 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
7251 };
7252 let mut offset = start.to_offset(&buffer);
7253 let mut moved_since_edit = true;
7254
7255 for change in diff.iter_all_changes() {
7256 let value = change.value();
7257 match change.tag() {
7258 ChangeTag::Equal => {
7259 offset += value.len();
7260 moved_since_edit = true;
7261 }
7262 ChangeTag::Delete => {
7263 let start = buffer.anchor_after(offset);
7264 let end = buffer.anchor_before(offset + value.len());
7265
7266 if moved_since_edit {
7267 edits.push((start..end, String::new()));
7268 } else {
7269 edits.last_mut().unwrap().0.end = end;
7270 }
7271
7272 offset += value.len();
7273 moved_since_edit = false;
7274 }
7275 ChangeTag::Insert => {
7276 if moved_since_edit {
7277 let anchor = buffer.anchor_after(offset);
7278 edits.push((anchor..anchor, value.to_string()));
7279 } else {
7280 edits.last_mut().unwrap().1.push_str(value);
7281 }
7282
7283 moved_since_edit = false;
7284 }
7285 }
7286 }
7287
7288 rewrapped_row_ranges.push(start_row..=end_row);
7289 }
7290
7291 self.buffer
7292 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7293 }
7294
7295 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
7296 let mut text = String::new();
7297 let buffer = self.buffer.read(cx).snapshot(cx);
7298 let mut selections = self.selections.all::<Point>(cx);
7299 let mut clipboard_selections = Vec::with_capacity(selections.len());
7300 {
7301 let max_point = buffer.max_point();
7302 let mut is_first = true;
7303 for selection in &mut selections {
7304 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7305 if is_entire_line {
7306 selection.start = Point::new(selection.start.row, 0);
7307 if !selection.is_empty() && selection.end.column == 0 {
7308 selection.end = cmp::min(max_point, selection.end);
7309 } else {
7310 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7311 }
7312 selection.goal = SelectionGoal::None;
7313 }
7314 if is_first {
7315 is_first = false;
7316 } else {
7317 text += "\n";
7318 }
7319 let mut len = 0;
7320 for chunk in buffer.text_for_range(selection.start..selection.end) {
7321 text.push_str(chunk);
7322 len += chunk.len();
7323 }
7324 clipboard_selections.push(ClipboardSelection {
7325 len,
7326 is_entire_line,
7327 first_line_indent: buffer
7328 .indent_size_for_line(MultiBufferRow(selection.start.row))
7329 .len,
7330 });
7331 }
7332 }
7333
7334 self.transact(cx, |this, cx| {
7335 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7336 s.select(selections);
7337 });
7338 this.insert("", cx);
7339 });
7340 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
7341 }
7342
7343 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7344 let item = self.cut_common(cx);
7345 cx.write_to_clipboard(item);
7346 }
7347
7348 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
7349 self.change_selections(None, cx, |s| {
7350 s.move_with(|snapshot, sel| {
7351 if sel.is_empty() {
7352 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
7353 }
7354 });
7355 });
7356 let item = self.cut_common(cx);
7357 cx.set_global(KillRing(item))
7358 }
7359
7360 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
7361 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
7362 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
7363 (kill_ring.text().to_string(), kill_ring.metadata_json())
7364 } else {
7365 return;
7366 }
7367 } else {
7368 return;
7369 };
7370 self.do_paste(&text, metadata, false, cx);
7371 }
7372
7373 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7374 let selections = self.selections.all::<Point>(cx);
7375 let buffer = self.buffer.read(cx).read(cx);
7376 let mut text = String::new();
7377
7378 let mut clipboard_selections = Vec::with_capacity(selections.len());
7379 {
7380 let max_point = buffer.max_point();
7381 let mut is_first = true;
7382 for selection in selections.iter() {
7383 let mut start = selection.start;
7384 let mut end = selection.end;
7385 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7386 if is_entire_line {
7387 start = Point::new(start.row, 0);
7388 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7389 }
7390 if is_first {
7391 is_first = false;
7392 } else {
7393 text += "\n";
7394 }
7395 let mut len = 0;
7396 for chunk in buffer.text_for_range(start..end) {
7397 text.push_str(chunk);
7398 len += chunk.len();
7399 }
7400 clipboard_selections.push(ClipboardSelection {
7401 len,
7402 is_entire_line,
7403 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7404 });
7405 }
7406 }
7407
7408 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7409 text,
7410 clipboard_selections,
7411 ));
7412 }
7413
7414 pub fn do_paste(
7415 &mut self,
7416 text: &String,
7417 clipboard_selections: Option<Vec<ClipboardSelection>>,
7418 handle_entire_lines: bool,
7419 cx: &mut ViewContext<Self>,
7420 ) {
7421 if self.read_only(cx) {
7422 return;
7423 }
7424
7425 let clipboard_text = Cow::Borrowed(text);
7426
7427 self.transact(cx, |this, cx| {
7428 if let Some(mut clipboard_selections) = clipboard_selections {
7429 let old_selections = this.selections.all::<usize>(cx);
7430 let all_selections_were_entire_line =
7431 clipboard_selections.iter().all(|s| s.is_entire_line);
7432 let first_selection_indent_column =
7433 clipboard_selections.first().map(|s| s.first_line_indent);
7434 if clipboard_selections.len() != old_selections.len() {
7435 clipboard_selections.drain(..);
7436 }
7437 let cursor_offset = this.selections.last::<usize>(cx).head();
7438 let mut auto_indent_on_paste = true;
7439
7440 this.buffer.update(cx, |buffer, cx| {
7441 let snapshot = buffer.read(cx);
7442 auto_indent_on_paste =
7443 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7444
7445 let mut start_offset = 0;
7446 let mut edits = Vec::new();
7447 let mut original_indent_columns = Vec::new();
7448 for (ix, selection) in old_selections.iter().enumerate() {
7449 let to_insert;
7450 let entire_line;
7451 let original_indent_column;
7452 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7453 let end_offset = start_offset + clipboard_selection.len;
7454 to_insert = &clipboard_text[start_offset..end_offset];
7455 entire_line = clipboard_selection.is_entire_line;
7456 start_offset = end_offset + 1;
7457 original_indent_column = Some(clipboard_selection.first_line_indent);
7458 } else {
7459 to_insert = clipboard_text.as_str();
7460 entire_line = all_selections_were_entire_line;
7461 original_indent_column = first_selection_indent_column
7462 }
7463
7464 // If the corresponding selection was empty when this slice of the
7465 // clipboard text was written, then the entire line containing the
7466 // selection was copied. If this selection is also currently empty,
7467 // then paste the line before the current line of the buffer.
7468 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7469 let column = selection.start.to_point(&snapshot).column as usize;
7470 let line_start = selection.start - column;
7471 line_start..line_start
7472 } else {
7473 selection.range()
7474 };
7475
7476 edits.push((range, to_insert));
7477 original_indent_columns.extend(original_indent_column);
7478 }
7479 drop(snapshot);
7480
7481 buffer.edit(
7482 edits,
7483 if auto_indent_on_paste {
7484 Some(AutoindentMode::Block {
7485 original_indent_columns,
7486 })
7487 } else {
7488 None
7489 },
7490 cx,
7491 );
7492 });
7493
7494 let selections = this.selections.all::<usize>(cx);
7495 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7496 } else {
7497 this.insert(&clipboard_text, cx);
7498 }
7499 });
7500 }
7501
7502 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7503 if let Some(item) = cx.read_from_clipboard() {
7504 let entries = item.entries();
7505
7506 match entries.first() {
7507 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7508 // of all the pasted entries.
7509 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7510 .do_paste(
7511 clipboard_string.text(),
7512 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7513 true,
7514 cx,
7515 ),
7516 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7517 }
7518 }
7519 }
7520
7521 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7522 if self.read_only(cx) {
7523 return;
7524 }
7525
7526 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7527 if let Some((selections, _)) =
7528 self.selection_history.transaction(transaction_id).cloned()
7529 {
7530 self.change_selections(None, cx, |s| {
7531 s.select_anchors(selections.to_vec());
7532 });
7533 }
7534 self.request_autoscroll(Autoscroll::fit(), cx);
7535 self.unmark_text(cx);
7536 self.refresh_inline_completion(true, false, cx);
7537 cx.emit(EditorEvent::Edited { transaction_id });
7538 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7539 }
7540 }
7541
7542 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7543 if self.read_only(cx) {
7544 return;
7545 }
7546
7547 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7548 if let Some((_, Some(selections))) =
7549 self.selection_history.transaction(transaction_id).cloned()
7550 {
7551 self.change_selections(None, cx, |s| {
7552 s.select_anchors(selections.to_vec());
7553 });
7554 }
7555 self.request_autoscroll(Autoscroll::fit(), cx);
7556 self.unmark_text(cx);
7557 self.refresh_inline_completion(true, false, cx);
7558 cx.emit(EditorEvent::Edited { transaction_id });
7559 }
7560 }
7561
7562 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7563 self.buffer
7564 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7565 }
7566
7567 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7568 self.buffer
7569 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7570 }
7571
7572 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7573 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7574 let line_mode = s.line_mode;
7575 s.move_with(|map, selection| {
7576 let cursor = if selection.is_empty() && !line_mode {
7577 movement::left(map, selection.start)
7578 } else {
7579 selection.start
7580 };
7581 selection.collapse_to(cursor, SelectionGoal::None);
7582 });
7583 })
7584 }
7585
7586 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7587 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7588 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7589 })
7590 }
7591
7592 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7593 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7594 let line_mode = s.line_mode;
7595 s.move_with(|map, selection| {
7596 let cursor = if selection.is_empty() && !line_mode {
7597 movement::right(map, selection.end)
7598 } else {
7599 selection.end
7600 };
7601 selection.collapse_to(cursor, SelectionGoal::None)
7602 });
7603 })
7604 }
7605
7606 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7607 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7608 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7609 })
7610 }
7611
7612 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7613 if self.take_rename(true, cx).is_some() {
7614 return;
7615 }
7616
7617 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7618 cx.propagate();
7619 return;
7620 }
7621
7622 let text_layout_details = &self.text_layout_details(cx);
7623 let selection_count = self.selections.count();
7624 let first_selection = self.selections.first_anchor();
7625
7626 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7627 let line_mode = s.line_mode;
7628 s.move_with(|map, selection| {
7629 if !selection.is_empty() && !line_mode {
7630 selection.goal = SelectionGoal::None;
7631 }
7632 let (cursor, goal) = movement::up(
7633 map,
7634 selection.start,
7635 selection.goal,
7636 false,
7637 text_layout_details,
7638 );
7639 selection.collapse_to(cursor, goal);
7640 });
7641 });
7642
7643 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7644 {
7645 cx.propagate();
7646 }
7647 }
7648
7649 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7650 if self.take_rename(true, cx).is_some() {
7651 return;
7652 }
7653
7654 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7655 cx.propagate();
7656 return;
7657 }
7658
7659 let text_layout_details = &self.text_layout_details(cx);
7660
7661 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7662 let line_mode = s.line_mode;
7663 s.move_with(|map, selection| {
7664 if !selection.is_empty() && !line_mode {
7665 selection.goal = SelectionGoal::None;
7666 }
7667 let (cursor, goal) = movement::up_by_rows(
7668 map,
7669 selection.start,
7670 action.lines,
7671 selection.goal,
7672 false,
7673 text_layout_details,
7674 );
7675 selection.collapse_to(cursor, goal);
7676 });
7677 })
7678 }
7679
7680 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7681 if self.take_rename(true, cx).is_some() {
7682 return;
7683 }
7684
7685 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7686 cx.propagate();
7687 return;
7688 }
7689
7690 let text_layout_details = &self.text_layout_details(cx);
7691
7692 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7693 let line_mode = s.line_mode;
7694 s.move_with(|map, selection| {
7695 if !selection.is_empty() && !line_mode {
7696 selection.goal = SelectionGoal::None;
7697 }
7698 let (cursor, goal) = movement::down_by_rows(
7699 map,
7700 selection.start,
7701 action.lines,
7702 selection.goal,
7703 false,
7704 text_layout_details,
7705 );
7706 selection.collapse_to(cursor, goal);
7707 });
7708 })
7709 }
7710
7711 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7712 let text_layout_details = &self.text_layout_details(cx);
7713 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7714 s.move_heads_with(|map, head, goal| {
7715 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7716 })
7717 })
7718 }
7719
7720 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7721 let text_layout_details = &self.text_layout_details(cx);
7722 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7723 s.move_heads_with(|map, head, goal| {
7724 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7725 })
7726 })
7727 }
7728
7729 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7730 let Some(row_count) = self.visible_row_count() else {
7731 return;
7732 };
7733
7734 let text_layout_details = &self.text_layout_details(cx);
7735
7736 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7737 s.move_heads_with(|map, head, goal| {
7738 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7739 })
7740 })
7741 }
7742
7743 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7744 if self.take_rename(true, cx).is_some() {
7745 return;
7746 }
7747
7748 if self
7749 .context_menu
7750 .write()
7751 .as_mut()
7752 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7753 .unwrap_or(false)
7754 {
7755 return;
7756 }
7757
7758 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7759 cx.propagate();
7760 return;
7761 }
7762
7763 let Some(row_count) = self.visible_row_count() else {
7764 return;
7765 };
7766
7767 let autoscroll = if action.center_cursor {
7768 Autoscroll::center()
7769 } else {
7770 Autoscroll::fit()
7771 };
7772
7773 let text_layout_details = &self.text_layout_details(cx);
7774
7775 self.change_selections(Some(autoscroll), cx, |s| {
7776 let line_mode = s.line_mode;
7777 s.move_with(|map, selection| {
7778 if !selection.is_empty() && !line_mode {
7779 selection.goal = SelectionGoal::None;
7780 }
7781 let (cursor, goal) = movement::up_by_rows(
7782 map,
7783 selection.end,
7784 row_count,
7785 selection.goal,
7786 false,
7787 text_layout_details,
7788 );
7789 selection.collapse_to(cursor, goal);
7790 });
7791 });
7792 }
7793
7794 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7795 let text_layout_details = &self.text_layout_details(cx);
7796 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7797 s.move_heads_with(|map, head, goal| {
7798 movement::up(map, head, goal, false, text_layout_details)
7799 })
7800 })
7801 }
7802
7803 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7804 self.take_rename(true, cx);
7805
7806 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7807 cx.propagate();
7808 return;
7809 }
7810
7811 let text_layout_details = &self.text_layout_details(cx);
7812 let selection_count = self.selections.count();
7813 let first_selection = self.selections.first_anchor();
7814
7815 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7816 let line_mode = s.line_mode;
7817 s.move_with(|map, selection| {
7818 if !selection.is_empty() && !line_mode {
7819 selection.goal = SelectionGoal::None;
7820 }
7821 let (cursor, goal) = movement::down(
7822 map,
7823 selection.end,
7824 selection.goal,
7825 false,
7826 text_layout_details,
7827 );
7828 selection.collapse_to(cursor, goal);
7829 });
7830 });
7831
7832 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7833 {
7834 cx.propagate();
7835 }
7836 }
7837
7838 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7839 let Some(row_count) = self.visible_row_count() else {
7840 return;
7841 };
7842
7843 let text_layout_details = &self.text_layout_details(cx);
7844
7845 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7846 s.move_heads_with(|map, head, goal| {
7847 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7848 })
7849 })
7850 }
7851
7852 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7853 if self.take_rename(true, cx).is_some() {
7854 return;
7855 }
7856
7857 if self
7858 .context_menu
7859 .write()
7860 .as_mut()
7861 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7862 .unwrap_or(false)
7863 {
7864 return;
7865 }
7866
7867 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7868 cx.propagate();
7869 return;
7870 }
7871
7872 let Some(row_count) = self.visible_row_count() else {
7873 return;
7874 };
7875
7876 let autoscroll = if action.center_cursor {
7877 Autoscroll::center()
7878 } else {
7879 Autoscroll::fit()
7880 };
7881
7882 let text_layout_details = &self.text_layout_details(cx);
7883 self.change_selections(Some(autoscroll), cx, |s| {
7884 let line_mode = s.line_mode;
7885 s.move_with(|map, selection| {
7886 if !selection.is_empty() && !line_mode {
7887 selection.goal = SelectionGoal::None;
7888 }
7889 let (cursor, goal) = movement::down_by_rows(
7890 map,
7891 selection.end,
7892 row_count,
7893 selection.goal,
7894 false,
7895 text_layout_details,
7896 );
7897 selection.collapse_to(cursor, goal);
7898 });
7899 });
7900 }
7901
7902 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7903 let text_layout_details = &self.text_layout_details(cx);
7904 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7905 s.move_heads_with(|map, head, goal| {
7906 movement::down(map, head, goal, false, text_layout_details)
7907 })
7908 });
7909 }
7910
7911 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7912 if let Some(context_menu) = self.context_menu.write().as_mut() {
7913 context_menu.select_first(self.completion_provider.as_deref(), cx);
7914 }
7915 }
7916
7917 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7918 if let Some(context_menu) = self.context_menu.write().as_mut() {
7919 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7920 }
7921 }
7922
7923 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7924 if let Some(context_menu) = self.context_menu.write().as_mut() {
7925 context_menu.select_next(self.completion_provider.as_deref(), cx);
7926 }
7927 }
7928
7929 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7930 if let Some(context_menu) = self.context_menu.write().as_mut() {
7931 context_menu.select_last(self.completion_provider.as_deref(), cx);
7932 }
7933 }
7934
7935 pub fn move_to_previous_word_start(
7936 &mut self,
7937 _: &MoveToPreviousWordStart,
7938 cx: &mut ViewContext<Self>,
7939 ) {
7940 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7941 s.move_cursors_with(|map, head, _| {
7942 (
7943 movement::previous_word_start(map, head),
7944 SelectionGoal::None,
7945 )
7946 });
7947 })
7948 }
7949
7950 pub fn move_to_previous_subword_start(
7951 &mut self,
7952 _: &MoveToPreviousSubwordStart,
7953 cx: &mut ViewContext<Self>,
7954 ) {
7955 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7956 s.move_cursors_with(|map, head, _| {
7957 (
7958 movement::previous_subword_start(map, head),
7959 SelectionGoal::None,
7960 )
7961 });
7962 })
7963 }
7964
7965 pub fn select_to_previous_word_start(
7966 &mut self,
7967 _: &SelectToPreviousWordStart,
7968 cx: &mut ViewContext<Self>,
7969 ) {
7970 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7971 s.move_heads_with(|map, head, _| {
7972 (
7973 movement::previous_word_start(map, head),
7974 SelectionGoal::None,
7975 )
7976 });
7977 })
7978 }
7979
7980 pub fn select_to_previous_subword_start(
7981 &mut self,
7982 _: &SelectToPreviousSubwordStart,
7983 cx: &mut ViewContext<Self>,
7984 ) {
7985 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7986 s.move_heads_with(|map, head, _| {
7987 (
7988 movement::previous_subword_start(map, head),
7989 SelectionGoal::None,
7990 )
7991 });
7992 })
7993 }
7994
7995 pub fn delete_to_previous_word_start(
7996 &mut self,
7997 action: &DeleteToPreviousWordStart,
7998 cx: &mut ViewContext<Self>,
7999 ) {
8000 self.transact(cx, |this, cx| {
8001 this.select_autoclose_pair(cx);
8002 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8003 let line_mode = s.line_mode;
8004 s.move_with(|map, selection| {
8005 if selection.is_empty() && !line_mode {
8006 let cursor = if action.ignore_newlines {
8007 movement::previous_word_start(map, selection.head())
8008 } else {
8009 movement::previous_word_start_or_newline(map, selection.head())
8010 };
8011 selection.set_head(cursor, SelectionGoal::None);
8012 }
8013 });
8014 });
8015 this.insert("", cx);
8016 });
8017 }
8018
8019 pub fn delete_to_previous_subword_start(
8020 &mut self,
8021 _: &DeleteToPreviousSubwordStart,
8022 cx: &mut ViewContext<Self>,
8023 ) {
8024 self.transact(cx, |this, cx| {
8025 this.select_autoclose_pair(cx);
8026 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8027 let line_mode = s.line_mode;
8028 s.move_with(|map, selection| {
8029 if selection.is_empty() && !line_mode {
8030 let cursor = movement::previous_subword_start(map, selection.head());
8031 selection.set_head(cursor, SelectionGoal::None);
8032 }
8033 });
8034 });
8035 this.insert("", cx);
8036 });
8037 }
8038
8039 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
8040 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8041 s.move_cursors_with(|map, head, _| {
8042 (movement::next_word_end(map, head), SelectionGoal::None)
8043 });
8044 })
8045 }
8046
8047 pub fn move_to_next_subword_end(
8048 &mut self,
8049 _: &MoveToNextSubwordEnd,
8050 cx: &mut ViewContext<Self>,
8051 ) {
8052 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8053 s.move_cursors_with(|map, head, _| {
8054 (movement::next_subword_end(map, head), SelectionGoal::None)
8055 });
8056 })
8057 }
8058
8059 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
8060 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8061 s.move_heads_with(|map, head, _| {
8062 (movement::next_word_end(map, head), SelectionGoal::None)
8063 });
8064 })
8065 }
8066
8067 pub fn select_to_next_subword_end(
8068 &mut self,
8069 _: &SelectToNextSubwordEnd,
8070 cx: &mut ViewContext<Self>,
8071 ) {
8072 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8073 s.move_heads_with(|map, head, _| {
8074 (movement::next_subword_end(map, head), SelectionGoal::None)
8075 });
8076 })
8077 }
8078
8079 pub fn delete_to_next_word_end(
8080 &mut self,
8081 action: &DeleteToNextWordEnd,
8082 cx: &mut ViewContext<Self>,
8083 ) {
8084 self.transact(cx, |this, cx| {
8085 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8086 let line_mode = s.line_mode;
8087 s.move_with(|map, selection| {
8088 if selection.is_empty() && !line_mode {
8089 let cursor = if action.ignore_newlines {
8090 movement::next_word_end(map, selection.head())
8091 } else {
8092 movement::next_word_end_or_newline(map, selection.head())
8093 };
8094 selection.set_head(cursor, SelectionGoal::None);
8095 }
8096 });
8097 });
8098 this.insert("", cx);
8099 });
8100 }
8101
8102 pub fn delete_to_next_subword_end(
8103 &mut self,
8104 _: &DeleteToNextSubwordEnd,
8105 cx: &mut ViewContext<Self>,
8106 ) {
8107 self.transact(cx, |this, cx| {
8108 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8109 s.move_with(|map, selection| {
8110 if selection.is_empty() {
8111 let cursor = movement::next_subword_end(map, selection.head());
8112 selection.set_head(cursor, SelectionGoal::None);
8113 }
8114 });
8115 });
8116 this.insert("", cx);
8117 });
8118 }
8119
8120 pub fn move_to_beginning_of_line(
8121 &mut self,
8122 action: &MoveToBeginningOfLine,
8123 cx: &mut ViewContext<Self>,
8124 ) {
8125 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8126 s.move_cursors_with(|map, head, _| {
8127 (
8128 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8129 SelectionGoal::None,
8130 )
8131 });
8132 })
8133 }
8134
8135 pub fn select_to_beginning_of_line(
8136 &mut self,
8137 action: &SelectToBeginningOfLine,
8138 cx: &mut ViewContext<Self>,
8139 ) {
8140 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8141 s.move_heads_with(|map, head, _| {
8142 (
8143 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8144 SelectionGoal::None,
8145 )
8146 });
8147 });
8148 }
8149
8150 pub fn delete_to_beginning_of_line(
8151 &mut self,
8152 _: &DeleteToBeginningOfLine,
8153 cx: &mut ViewContext<Self>,
8154 ) {
8155 self.transact(cx, |this, cx| {
8156 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8157 s.move_with(|_, selection| {
8158 selection.reversed = true;
8159 });
8160 });
8161
8162 this.select_to_beginning_of_line(
8163 &SelectToBeginningOfLine {
8164 stop_at_soft_wraps: false,
8165 },
8166 cx,
8167 );
8168 this.backspace(&Backspace, cx);
8169 });
8170 }
8171
8172 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
8173 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8174 s.move_cursors_with(|map, head, _| {
8175 (
8176 movement::line_end(map, head, action.stop_at_soft_wraps),
8177 SelectionGoal::None,
8178 )
8179 });
8180 })
8181 }
8182
8183 pub fn select_to_end_of_line(
8184 &mut self,
8185 action: &SelectToEndOfLine,
8186 cx: &mut ViewContext<Self>,
8187 ) {
8188 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8189 s.move_heads_with(|map, head, _| {
8190 (
8191 movement::line_end(map, head, action.stop_at_soft_wraps),
8192 SelectionGoal::None,
8193 )
8194 });
8195 })
8196 }
8197
8198 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
8199 self.transact(cx, |this, cx| {
8200 this.select_to_end_of_line(
8201 &SelectToEndOfLine {
8202 stop_at_soft_wraps: false,
8203 },
8204 cx,
8205 );
8206 this.delete(&Delete, cx);
8207 });
8208 }
8209
8210 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
8211 self.transact(cx, |this, cx| {
8212 this.select_to_end_of_line(
8213 &SelectToEndOfLine {
8214 stop_at_soft_wraps: false,
8215 },
8216 cx,
8217 );
8218 this.cut(&Cut, cx);
8219 });
8220 }
8221
8222 pub fn move_to_start_of_paragraph(
8223 &mut self,
8224 _: &MoveToStartOfParagraph,
8225 cx: &mut ViewContext<Self>,
8226 ) {
8227 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8228 cx.propagate();
8229 return;
8230 }
8231
8232 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8233 s.move_with(|map, selection| {
8234 selection.collapse_to(
8235 movement::start_of_paragraph(map, selection.head(), 1),
8236 SelectionGoal::None,
8237 )
8238 });
8239 })
8240 }
8241
8242 pub fn move_to_end_of_paragraph(
8243 &mut self,
8244 _: &MoveToEndOfParagraph,
8245 cx: &mut ViewContext<Self>,
8246 ) {
8247 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8248 cx.propagate();
8249 return;
8250 }
8251
8252 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8253 s.move_with(|map, selection| {
8254 selection.collapse_to(
8255 movement::end_of_paragraph(map, selection.head(), 1),
8256 SelectionGoal::None,
8257 )
8258 });
8259 })
8260 }
8261
8262 pub fn select_to_start_of_paragraph(
8263 &mut self,
8264 _: &SelectToStartOfParagraph,
8265 cx: &mut ViewContext<Self>,
8266 ) {
8267 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8268 cx.propagate();
8269 return;
8270 }
8271
8272 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8273 s.move_heads_with(|map, head, _| {
8274 (
8275 movement::start_of_paragraph(map, head, 1),
8276 SelectionGoal::None,
8277 )
8278 });
8279 })
8280 }
8281
8282 pub fn select_to_end_of_paragraph(
8283 &mut self,
8284 _: &SelectToEndOfParagraph,
8285 cx: &mut ViewContext<Self>,
8286 ) {
8287 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8288 cx.propagate();
8289 return;
8290 }
8291
8292 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8293 s.move_heads_with(|map, head, _| {
8294 (
8295 movement::end_of_paragraph(map, head, 1),
8296 SelectionGoal::None,
8297 )
8298 });
8299 })
8300 }
8301
8302 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8303 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8304 cx.propagate();
8305 return;
8306 }
8307
8308 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8309 s.select_ranges(vec![0..0]);
8310 });
8311 }
8312
8313 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8314 let mut selection = self.selections.last::<Point>(cx);
8315 selection.set_head(Point::zero(), SelectionGoal::None);
8316
8317 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8318 s.select(vec![selection]);
8319 });
8320 }
8321
8322 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8323 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8324 cx.propagate();
8325 return;
8326 }
8327
8328 let cursor = self.buffer.read(cx).read(cx).len();
8329 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8330 s.select_ranges(vec![cursor..cursor])
8331 });
8332 }
8333
8334 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8335 self.nav_history = nav_history;
8336 }
8337
8338 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8339 self.nav_history.as_ref()
8340 }
8341
8342 fn push_to_nav_history(
8343 &mut self,
8344 cursor_anchor: Anchor,
8345 new_position: Option<Point>,
8346 cx: &mut ViewContext<Self>,
8347 ) {
8348 if let Some(nav_history) = self.nav_history.as_mut() {
8349 let buffer = self.buffer.read(cx).read(cx);
8350 let cursor_position = cursor_anchor.to_point(&buffer);
8351 let scroll_state = self.scroll_manager.anchor();
8352 let scroll_top_row = scroll_state.top_row(&buffer);
8353 drop(buffer);
8354
8355 if let Some(new_position) = new_position {
8356 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8357 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8358 return;
8359 }
8360 }
8361
8362 nav_history.push(
8363 Some(NavigationData {
8364 cursor_anchor,
8365 cursor_position,
8366 scroll_anchor: scroll_state,
8367 scroll_top_row,
8368 }),
8369 cx,
8370 );
8371 }
8372 }
8373
8374 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8375 let buffer = self.buffer.read(cx).snapshot(cx);
8376 let mut selection = self.selections.first::<usize>(cx);
8377 selection.set_head(buffer.len(), SelectionGoal::None);
8378 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8379 s.select(vec![selection]);
8380 });
8381 }
8382
8383 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8384 let end = self.buffer.read(cx).read(cx).len();
8385 self.change_selections(None, cx, |s| {
8386 s.select_ranges(vec![0..end]);
8387 });
8388 }
8389
8390 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8391 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8392 let mut selections = self.selections.all::<Point>(cx);
8393 let max_point = display_map.buffer_snapshot.max_point();
8394 for selection in &mut selections {
8395 let rows = selection.spanned_rows(true, &display_map);
8396 selection.start = Point::new(rows.start.0, 0);
8397 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8398 selection.reversed = false;
8399 }
8400 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8401 s.select(selections);
8402 });
8403 }
8404
8405 pub fn split_selection_into_lines(
8406 &mut self,
8407 _: &SplitSelectionIntoLines,
8408 cx: &mut ViewContext<Self>,
8409 ) {
8410 let mut to_unfold = Vec::new();
8411 let mut new_selection_ranges = Vec::new();
8412 {
8413 let selections = self.selections.all::<Point>(cx);
8414 let buffer = self.buffer.read(cx).read(cx);
8415 for selection in selections {
8416 for row in selection.start.row..selection.end.row {
8417 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8418 new_selection_ranges.push(cursor..cursor);
8419 }
8420 new_selection_ranges.push(selection.end..selection.end);
8421 to_unfold.push(selection.start..selection.end);
8422 }
8423 }
8424 self.unfold_ranges(&to_unfold, true, true, cx);
8425 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8426 s.select_ranges(new_selection_ranges);
8427 });
8428 }
8429
8430 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8431 self.add_selection(true, cx);
8432 }
8433
8434 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8435 self.add_selection(false, cx);
8436 }
8437
8438 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8439 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8440 let mut selections = self.selections.all::<Point>(cx);
8441 let text_layout_details = self.text_layout_details(cx);
8442 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8443 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8444 let range = oldest_selection.display_range(&display_map).sorted();
8445
8446 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8447 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8448 let positions = start_x.min(end_x)..start_x.max(end_x);
8449
8450 selections.clear();
8451 let mut stack = Vec::new();
8452 for row in range.start.row().0..=range.end.row().0 {
8453 if let Some(selection) = self.selections.build_columnar_selection(
8454 &display_map,
8455 DisplayRow(row),
8456 &positions,
8457 oldest_selection.reversed,
8458 &text_layout_details,
8459 ) {
8460 stack.push(selection.id);
8461 selections.push(selection);
8462 }
8463 }
8464
8465 if above {
8466 stack.reverse();
8467 }
8468
8469 AddSelectionsState { above, stack }
8470 });
8471
8472 let last_added_selection = *state.stack.last().unwrap();
8473 let mut new_selections = Vec::new();
8474 if above == state.above {
8475 let end_row = if above {
8476 DisplayRow(0)
8477 } else {
8478 display_map.max_point().row()
8479 };
8480
8481 'outer: for selection in selections {
8482 if selection.id == last_added_selection {
8483 let range = selection.display_range(&display_map).sorted();
8484 debug_assert_eq!(range.start.row(), range.end.row());
8485 let mut row = range.start.row();
8486 let positions =
8487 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8488 px(start)..px(end)
8489 } else {
8490 let start_x =
8491 display_map.x_for_display_point(range.start, &text_layout_details);
8492 let end_x =
8493 display_map.x_for_display_point(range.end, &text_layout_details);
8494 start_x.min(end_x)..start_x.max(end_x)
8495 };
8496
8497 while row != end_row {
8498 if above {
8499 row.0 -= 1;
8500 } else {
8501 row.0 += 1;
8502 }
8503
8504 if let Some(new_selection) = self.selections.build_columnar_selection(
8505 &display_map,
8506 row,
8507 &positions,
8508 selection.reversed,
8509 &text_layout_details,
8510 ) {
8511 state.stack.push(new_selection.id);
8512 if above {
8513 new_selections.push(new_selection);
8514 new_selections.push(selection);
8515 } else {
8516 new_selections.push(selection);
8517 new_selections.push(new_selection);
8518 }
8519
8520 continue 'outer;
8521 }
8522 }
8523 }
8524
8525 new_selections.push(selection);
8526 }
8527 } else {
8528 new_selections = selections;
8529 new_selections.retain(|s| s.id != last_added_selection);
8530 state.stack.pop();
8531 }
8532
8533 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8534 s.select(new_selections);
8535 });
8536 if state.stack.len() > 1 {
8537 self.add_selections_state = Some(state);
8538 }
8539 }
8540
8541 pub fn select_next_match_internal(
8542 &mut self,
8543 display_map: &DisplaySnapshot,
8544 replace_newest: bool,
8545 autoscroll: Option<Autoscroll>,
8546 cx: &mut ViewContext<Self>,
8547 ) -> Result<()> {
8548 fn select_next_match_ranges(
8549 this: &mut Editor,
8550 range: Range<usize>,
8551 replace_newest: bool,
8552 auto_scroll: Option<Autoscroll>,
8553 cx: &mut ViewContext<Editor>,
8554 ) {
8555 this.unfold_ranges(&[range.clone()], false, true, cx);
8556 this.change_selections(auto_scroll, cx, |s| {
8557 if replace_newest {
8558 s.delete(s.newest_anchor().id);
8559 }
8560 s.insert_range(range.clone());
8561 });
8562 }
8563
8564 let buffer = &display_map.buffer_snapshot;
8565 let mut selections = self.selections.all::<usize>(cx);
8566 if let Some(mut select_next_state) = self.select_next_state.take() {
8567 let query = &select_next_state.query;
8568 if !select_next_state.done {
8569 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8570 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8571 let mut next_selected_range = None;
8572
8573 let bytes_after_last_selection =
8574 buffer.bytes_in_range(last_selection.end..buffer.len());
8575 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8576 let query_matches = query
8577 .stream_find_iter(bytes_after_last_selection)
8578 .map(|result| (last_selection.end, result))
8579 .chain(
8580 query
8581 .stream_find_iter(bytes_before_first_selection)
8582 .map(|result| (0, result)),
8583 );
8584
8585 for (start_offset, query_match) in query_matches {
8586 let query_match = query_match.unwrap(); // can only fail due to I/O
8587 let offset_range =
8588 start_offset + query_match.start()..start_offset + query_match.end();
8589 let display_range = offset_range.start.to_display_point(display_map)
8590 ..offset_range.end.to_display_point(display_map);
8591
8592 if !select_next_state.wordwise
8593 || (!movement::is_inside_word(display_map, display_range.start)
8594 && !movement::is_inside_word(display_map, display_range.end))
8595 {
8596 // TODO: This is n^2, because we might check all the selections
8597 if !selections
8598 .iter()
8599 .any(|selection| selection.range().overlaps(&offset_range))
8600 {
8601 next_selected_range = Some(offset_range);
8602 break;
8603 }
8604 }
8605 }
8606
8607 if let Some(next_selected_range) = next_selected_range {
8608 select_next_match_ranges(
8609 self,
8610 next_selected_range,
8611 replace_newest,
8612 autoscroll,
8613 cx,
8614 );
8615 } else {
8616 select_next_state.done = true;
8617 }
8618 }
8619
8620 self.select_next_state = Some(select_next_state);
8621 } else {
8622 let mut only_carets = true;
8623 let mut same_text_selected = true;
8624 let mut selected_text = None;
8625
8626 let mut selections_iter = selections.iter().peekable();
8627 while let Some(selection) = selections_iter.next() {
8628 if selection.start != selection.end {
8629 only_carets = false;
8630 }
8631
8632 if same_text_selected {
8633 if selected_text.is_none() {
8634 selected_text =
8635 Some(buffer.text_for_range(selection.range()).collect::<String>());
8636 }
8637
8638 if let Some(next_selection) = selections_iter.peek() {
8639 if next_selection.range().len() == selection.range().len() {
8640 let next_selected_text = buffer
8641 .text_for_range(next_selection.range())
8642 .collect::<String>();
8643 if Some(next_selected_text) != selected_text {
8644 same_text_selected = false;
8645 selected_text = None;
8646 }
8647 } else {
8648 same_text_selected = false;
8649 selected_text = None;
8650 }
8651 }
8652 }
8653 }
8654
8655 if only_carets {
8656 for selection in &mut selections {
8657 let word_range = movement::surrounding_word(
8658 display_map,
8659 selection.start.to_display_point(display_map),
8660 );
8661 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8662 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8663 selection.goal = SelectionGoal::None;
8664 selection.reversed = false;
8665 select_next_match_ranges(
8666 self,
8667 selection.start..selection.end,
8668 replace_newest,
8669 autoscroll,
8670 cx,
8671 );
8672 }
8673
8674 if selections.len() == 1 {
8675 let selection = selections
8676 .last()
8677 .expect("ensured that there's only one selection");
8678 let query = buffer
8679 .text_for_range(selection.start..selection.end)
8680 .collect::<String>();
8681 let is_empty = query.is_empty();
8682 let select_state = SelectNextState {
8683 query: AhoCorasick::new(&[query])?,
8684 wordwise: true,
8685 done: is_empty,
8686 };
8687 self.select_next_state = Some(select_state);
8688 } else {
8689 self.select_next_state = None;
8690 }
8691 } else if let Some(selected_text) = selected_text {
8692 self.select_next_state = Some(SelectNextState {
8693 query: AhoCorasick::new(&[selected_text])?,
8694 wordwise: false,
8695 done: false,
8696 });
8697 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8698 }
8699 }
8700 Ok(())
8701 }
8702
8703 pub fn select_all_matches(
8704 &mut self,
8705 _action: &SelectAllMatches,
8706 cx: &mut ViewContext<Self>,
8707 ) -> Result<()> {
8708 self.push_to_selection_history();
8709 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8710
8711 self.select_next_match_internal(&display_map, false, None, cx)?;
8712 let Some(select_next_state) = self.select_next_state.as_mut() else {
8713 return Ok(());
8714 };
8715 if select_next_state.done {
8716 return Ok(());
8717 }
8718
8719 let mut new_selections = self.selections.all::<usize>(cx);
8720
8721 let buffer = &display_map.buffer_snapshot;
8722 let query_matches = select_next_state
8723 .query
8724 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8725
8726 for query_match in query_matches {
8727 let query_match = query_match.unwrap(); // can only fail due to I/O
8728 let offset_range = query_match.start()..query_match.end();
8729 let display_range = offset_range.start.to_display_point(&display_map)
8730 ..offset_range.end.to_display_point(&display_map);
8731
8732 if !select_next_state.wordwise
8733 || (!movement::is_inside_word(&display_map, display_range.start)
8734 && !movement::is_inside_word(&display_map, display_range.end))
8735 {
8736 self.selections.change_with(cx, |selections| {
8737 new_selections.push(Selection {
8738 id: selections.new_selection_id(),
8739 start: offset_range.start,
8740 end: offset_range.end,
8741 reversed: false,
8742 goal: SelectionGoal::None,
8743 });
8744 });
8745 }
8746 }
8747
8748 new_selections.sort_by_key(|selection| selection.start);
8749 let mut ix = 0;
8750 while ix + 1 < new_selections.len() {
8751 let current_selection = &new_selections[ix];
8752 let next_selection = &new_selections[ix + 1];
8753 if current_selection.range().overlaps(&next_selection.range()) {
8754 if current_selection.id < next_selection.id {
8755 new_selections.remove(ix + 1);
8756 } else {
8757 new_selections.remove(ix);
8758 }
8759 } else {
8760 ix += 1;
8761 }
8762 }
8763
8764 select_next_state.done = true;
8765 self.unfold_ranges(
8766 &new_selections
8767 .iter()
8768 .map(|selection| selection.range())
8769 .collect::<Vec<_>>(),
8770 false,
8771 false,
8772 cx,
8773 );
8774 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8775 selections.select(new_selections)
8776 });
8777
8778 Ok(())
8779 }
8780
8781 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8782 self.push_to_selection_history();
8783 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8784 self.select_next_match_internal(
8785 &display_map,
8786 action.replace_newest,
8787 Some(Autoscroll::newest()),
8788 cx,
8789 )?;
8790 Ok(())
8791 }
8792
8793 pub fn select_previous(
8794 &mut self,
8795 action: &SelectPrevious,
8796 cx: &mut ViewContext<Self>,
8797 ) -> Result<()> {
8798 self.push_to_selection_history();
8799 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8800 let buffer = &display_map.buffer_snapshot;
8801 let mut selections = self.selections.all::<usize>(cx);
8802 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8803 let query = &select_prev_state.query;
8804 if !select_prev_state.done {
8805 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8806 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8807 let mut next_selected_range = None;
8808 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8809 let bytes_before_last_selection =
8810 buffer.reversed_bytes_in_range(0..last_selection.start);
8811 let bytes_after_first_selection =
8812 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8813 let query_matches = query
8814 .stream_find_iter(bytes_before_last_selection)
8815 .map(|result| (last_selection.start, result))
8816 .chain(
8817 query
8818 .stream_find_iter(bytes_after_first_selection)
8819 .map(|result| (buffer.len(), result)),
8820 );
8821 for (end_offset, query_match) in query_matches {
8822 let query_match = query_match.unwrap(); // can only fail due to I/O
8823 let offset_range =
8824 end_offset - query_match.end()..end_offset - query_match.start();
8825 let display_range = offset_range.start.to_display_point(&display_map)
8826 ..offset_range.end.to_display_point(&display_map);
8827
8828 if !select_prev_state.wordwise
8829 || (!movement::is_inside_word(&display_map, display_range.start)
8830 && !movement::is_inside_word(&display_map, display_range.end))
8831 {
8832 next_selected_range = Some(offset_range);
8833 break;
8834 }
8835 }
8836
8837 if let Some(next_selected_range) = next_selected_range {
8838 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8839 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8840 if action.replace_newest {
8841 s.delete(s.newest_anchor().id);
8842 }
8843 s.insert_range(next_selected_range);
8844 });
8845 } else {
8846 select_prev_state.done = true;
8847 }
8848 }
8849
8850 self.select_prev_state = Some(select_prev_state);
8851 } else {
8852 let mut only_carets = true;
8853 let mut same_text_selected = true;
8854 let mut selected_text = None;
8855
8856 let mut selections_iter = selections.iter().peekable();
8857 while let Some(selection) = selections_iter.next() {
8858 if selection.start != selection.end {
8859 only_carets = false;
8860 }
8861
8862 if same_text_selected {
8863 if selected_text.is_none() {
8864 selected_text =
8865 Some(buffer.text_for_range(selection.range()).collect::<String>());
8866 }
8867
8868 if let Some(next_selection) = selections_iter.peek() {
8869 if next_selection.range().len() == selection.range().len() {
8870 let next_selected_text = buffer
8871 .text_for_range(next_selection.range())
8872 .collect::<String>();
8873 if Some(next_selected_text) != selected_text {
8874 same_text_selected = false;
8875 selected_text = None;
8876 }
8877 } else {
8878 same_text_selected = false;
8879 selected_text = None;
8880 }
8881 }
8882 }
8883 }
8884
8885 if only_carets {
8886 for selection in &mut selections {
8887 let word_range = movement::surrounding_word(
8888 &display_map,
8889 selection.start.to_display_point(&display_map),
8890 );
8891 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8892 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8893 selection.goal = SelectionGoal::None;
8894 selection.reversed = false;
8895 }
8896 if selections.len() == 1 {
8897 let selection = selections
8898 .last()
8899 .expect("ensured that there's only one selection");
8900 let query = buffer
8901 .text_for_range(selection.start..selection.end)
8902 .collect::<String>();
8903 let is_empty = query.is_empty();
8904 let select_state = SelectNextState {
8905 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8906 wordwise: true,
8907 done: is_empty,
8908 };
8909 self.select_prev_state = Some(select_state);
8910 } else {
8911 self.select_prev_state = None;
8912 }
8913
8914 self.unfold_ranges(
8915 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8916 false,
8917 true,
8918 cx,
8919 );
8920 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8921 s.select(selections);
8922 });
8923 } else if let Some(selected_text) = selected_text {
8924 self.select_prev_state = Some(SelectNextState {
8925 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8926 wordwise: false,
8927 done: false,
8928 });
8929 self.select_previous(action, cx)?;
8930 }
8931 }
8932 Ok(())
8933 }
8934
8935 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8936 if self.read_only(cx) {
8937 return;
8938 }
8939 let text_layout_details = &self.text_layout_details(cx);
8940 self.transact(cx, |this, cx| {
8941 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8942 let mut edits = Vec::new();
8943 let mut selection_edit_ranges = Vec::new();
8944 let mut last_toggled_row = None;
8945 let snapshot = this.buffer.read(cx).read(cx);
8946 let empty_str: Arc<str> = Arc::default();
8947 let mut suffixes_inserted = Vec::new();
8948 let ignore_indent = action.ignore_indent;
8949
8950 fn comment_prefix_range(
8951 snapshot: &MultiBufferSnapshot,
8952 row: MultiBufferRow,
8953 comment_prefix: &str,
8954 comment_prefix_whitespace: &str,
8955 ignore_indent: bool,
8956 ) -> Range<Point> {
8957 let indent_size = if ignore_indent {
8958 0
8959 } else {
8960 snapshot.indent_size_for_line(row).len
8961 };
8962
8963 let start = Point::new(row.0, indent_size);
8964
8965 let mut line_bytes = snapshot
8966 .bytes_in_range(start..snapshot.max_point())
8967 .flatten()
8968 .copied();
8969
8970 // If this line currently begins with the line comment prefix, then record
8971 // the range containing the prefix.
8972 if line_bytes
8973 .by_ref()
8974 .take(comment_prefix.len())
8975 .eq(comment_prefix.bytes())
8976 {
8977 // Include any whitespace that matches the comment prefix.
8978 let matching_whitespace_len = line_bytes
8979 .zip(comment_prefix_whitespace.bytes())
8980 .take_while(|(a, b)| a == b)
8981 .count() as u32;
8982 let end = Point::new(
8983 start.row,
8984 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8985 );
8986 start..end
8987 } else {
8988 start..start
8989 }
8990 }
8991
8992 fn comment_suffix_range(
8993 snapshot: &MultiBufferSnapshot,
8994 row: MultiBufferRow,
8995 comment_suffix: &str,
8996 comment_suffix_has_leading_space: bool,
8997 ) -> Range<Point> {
8998 let end = Point::new(row.0, snapshot.line_len(row));
8999 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
9000
9001 let mut line_end_bytes = snapshot
9002 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
9003 .flatten()
9004 .copied();
9005
9006 let leading_space_len = if suffix_start_column > 0
9007 && line_end_bytes.next() == Some(b' ')
9008 && comment_suffix_has_leading_space
9009 {
9010 1
9011 } else {
9012 0
9013 };
9014
9015 // If this line currently begins with the line comment prefix, then record
9016 // the range containing the prefix.
9017 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
9018 let start = Point::new(end.row, suffix_start_column - leading_space_len);
9019 start..end
9020 } else {
9021 end..end
9022 }
9023 }
9024
9025 // TODO: Handle selections that cross excerpts
9026 for selection in &mut selections {
9027 let start_column = snapshot
9028 .indent_size_for_line(MultiBufferRow(selection.start.row))
9029 .len;
9030 let language = if let Some(language) =
9031 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
9032 {
9033 language
9034 } else {
9035 continue;
9036 };
9037
9038 selection_edit_ranges.clear();
9039
9040 // If multiple selections contain a given row, avoid processing that
9041 // row more than once.
9042 let mut start_row = MultiBufferRow(selection.start.row);
9043 if last_toggled_row == Some(start_row) {
9044 start_row = start_row.next_row();
9045 }
9046 let end_row =
9047 if selection.end.row > selection.start.row && selection.end.column == 0 {
9048 MultiBufferRow(selection.end.row - 1)
9049 } else {
9050 MultiBufferRow(selection.end.row)
9051 };
9052 last_toggled_row = Some(end_row);
9053
9054 if start_row > end_row {
9055 continue;
9056 }
9057
9058 // If the language has line comments, toggle those.
9059 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
9060
9061 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
9062 if ignore_indent {
9063 full_comment_prefixes = full_comment_prefixes
9064 .into_iter()
9065 .map(|s| Arc::from(s.trim_end()))
9066 .collect();
9067 }
9068
9069 if !full_comment_prefixes.is_empty() {
9070 let first_prefix = full_comment_prefixes
9071 .first()
9072 .expect("prefixes is non-empty");
9073 let prefix_trimmed_lengths = full_comment_prefixes
9074 .iter()
9075 .map(|p| p.trim_end_matches(' ').len())
9076 .collect::<SmallVec<[usize; 4]>>();
9077
9078 let mut all_selection_lines_are_comments = true;
9079
9080 for row in start_row.0..=end_row.0 {
9081 let row = MultiBufferRow(row);
9082 if start_row < end_row && snapshot.is_line_blank(row) {
9083 continue;
9084 }
9085
9086 let prefix_range = full_comment_prefixes
9087 .iter()
9088 .zip(prefix_trimmed_lengths.iter().copied())
9089 .map(|(prefix, trimmed_prefix_len)| {
9090 comment_prefix_range(
9091 snapshot.deref(),
9092 row,
9093 &prefix[..trimmed_prefix_len],
9094 &prefix[trimmed_prefix_len..],
9095 ignore_indent,
9096 )
9097 })
9098 .max_by_key(|range| range.end.column - range.start.column)
9099 .expect("prefixes is non-empty");
9100
9101 if prefix_range.is_empty() {
9102 all_selection_lines_are_comments = false;
9103 }
9104
9105 selection_edit_ranges.push(prefix_range);
9106 }
9107
9108 if all_selection_lines_are_comments {
9109 edits.extend(
9110 selection_edit_ranges
9111 .iter()
9112 .cloned()
9113 .map(|range| (range, empty_str.clone())),
9114 );
9115 } else {
9116 let min_column = selection_edit_ranges
9117 .iter()
9118 .map(|range| range.start.column)
9119 .min()
9120 .unwrap_or(0);
9121 edits.extend(selection_edit_ranges.iter().map(|range| {
9122 let position = Point::new(range.start.row, min_column);
9123 (position..position, first_prefix.clone())
9124 }));
9125 }
9126 } else if let Some((full_comment_prefix, comment_suffix)) =
9127 language.block_comment_delimiters()
9128 {
9129 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
9130 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
9131 let prefix_range = comment_prefix_range(
9132 snapshot.deref(),
9133 start_row,
9134 comment_prefix,
9135 comment_prefix_whitespace,
9136 ignore_indent,
9137 );
9138 let suffix_range = comment_suffix_range(
9139 snapshot.deref(),
9140 end_row,
9141 comment_suffix.trim_start_matches(' '),
9142 comment_suffix.starts_with(' '),
9143 );
9144
9145 if prefix_range.is_empty() || suffix_range.is_empty() {
9146 edits.push((
9147 prefix_range.start..prefix_range.start,
9148 full_comment_prefix.clone(),
9149 ));
9150 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
9151 suffixes_inserted.push((end_row, comment_suffix.len()));
9152 } else {
9153 edits.push((prefix_range, empty_str.clone()));
9154 edits.push((suffix_range, empty_str.clone()));
9155 }
9156 } else {
9157 continue;
9158 }
9159 }
9160
9161 drop(snapshot);
9162 this.buffer.update(cx, |buffer, cx| {
9163 buffer.edit(edits, None, cx);
9164 });
9165
9166 // Adjust selections so that they end before any comment suffixes that
9167 // were inserted.
9168 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
9169 let mut selections = this.selections.all::<Point>(cx);
9170 let snapshot = this.buffer.read(cx).read(cx);
9171 for selection in &mut selections {
9172 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9173 match row.cmp(&MultiBufferRow(selection.end.row)) {
9174 Ordering::Less => {
9175 suffixes_inserted.next();
9176 continue;
9177 }
9178 Ordering::Greater => break,
9179 Ordering::Equal => {
9180 if selection.end.column == snapshot.line_len(row) {
9181 if selection.is_empty() {
9182 selection.start.column -= suffix_len as u32;
9183 }
9184 selection.end.column -= suffix_len as u32;
9185 }
9186 break;
9187 }
9188 }
9189 }
9190 }
9191
9192 drop(snapshot);
9193 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
9194
9195 let selections = this.selections.all::<Point>(cx);
9196 let selections_on_single_row = selections.windows(2).all(|selections| {
9197 selections[0].start.row == selections[1].start.row
9198 && selections[0].end.row == selections[1].end.row
9199 && selections[0].start.row == selections[0].end.row
9200 });
9201 let selections_selecting = selections
9202 .iter()
9203 .any(|selection| selection.start != selection.end);
9204 let advance_downwards = action.advance_downwards
9205 && selections_on_single_row
9206 && !selections_selecting
9207 && !matches!(this.mode, EditorMode::SingleLine { .. });
9208
9209 if advance_downwards {
9210 let snapshot = this.buffer.read(cx).snapshot(cx);
9211
9212 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
9213 s.move_cursors_with(|display_snapshot, display_point, _| {
9214 let mut point = display_point.to_point(display_snapshot);
9215 point.row += 1;
9216 point = snapshot.clip_point(point, Bias::Left);
9217 let display_point = point.to_display_point(display_snapshot);
9218 let goal = SelectionGoal::HorizontalPosition(
9219 display_snapshot
9220 .x_for_display_point(display_point, text_layout_details)
9221 .into(),
9222 );
9223 (display_point, goal)
9224 })
9225 });
9226 }
9227 });
9228 }
9229
9230 pub fn select_enclosing_symbol(
9231 &mut self,
9232 _: &SelectEnclosingSymbol,
9233 cx: &mut ViewContext<Self>,
9234 ) {
9235 let buffer = self.buffer.read(cx).snapshot(cx);
9236 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9237
9238 fn update_selection(
9239 selection: &Selection<usize>,
9240 buffer_snap: &MultiBufferSnapshot,
9241 ) -> Option<Selection<usize>> {
9242 let cursor = selection.head();
9243 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9244 for symbol in symbols.iter().rev() {
9245 let start = symbol.range.start.to_offset(buffer_snap);
9246 let end = symbol.range.end.to_offset(buffer_snap);
9247 let new_range = start..end;
9248 if start < selection.start || end > selection.end {
9249 return Some(Selection {
9250 id: selection.id,
9251 start: new_range.start,
9252 end: new_range.end,
9253 goal: SelectionGoal::None,
9254 reversed: selection.reversed,
9255 });
9256 }
9257 }
9258 None
9259 }
9260
9261 let mut selected_larger_symbol = false;
9262 let new_selections = old_selections
9263 .iter()
9264 .map(|selection| match update_selection(selection, &buffer) {
9265 Some(new_selection) => {
9266 if new_selection.range() != selection.range() {
9267 selected_larger_symbol = true;
9268 }
9269 new_selection
9270 }
9271 None => selection.clone(),
9272 })
9273 .collect::<Vec<_>>();
9274
9275 if selected_larger_symbol {
9276 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9277 s.select(new_selections);
9278 });
9279 }
9280 }
9281
9282 pub fn select_larger_syntax_node(
9283 &mut self,
9284 _: &SelectLargerSyntaxNode,
9285 cx: &mut ViewContext<Self>,
9286 ) {
9287 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9288 let buffer = self.buffer.read(cx).snapshot(cx);
9289 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9290
9291 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9292 let mut selected_larger_node = false;
9293 let new_selections = old_selections
9294 .iter()
9295 .map(|selection| {
9296 let old_range = selection.start..selection.end;
9297 let mut new_range = old_range.clone();
9298 while let Some(containing_range) =
9299 buffer.range_for_syntax_ancestor(new_range.clone())
9300 {
9301 new_range = containing_range;
9302 if !display_map.intersects_fold(new_range.start)
9303 && !display_map.intersects_fold(new_range.end)
9304 {
9305 break;
9306 }
9307 }
9308
9309 selected_larger_node |= new_range != old_range;
9310 Selection {
9311 id: selection.id,
9312 start: new_range.start,
9313 end: new_range.end,
9314 goal: SelectionGoal::None,
9315 reversed: selection.reversed,
9316 }
9317 })
9318 .collect::<Vec<_>>();
9319
9320 if selected_larger_node {
9321 stack.push(old_selections);
9322 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9323 s.select(new_selections);
9324 });
9325 }
9326 self.select_larger_syntax_node_stack = stack;
9327 }
9328
9329 pub fn select_smaller_syntax_node(
9330 &mut self,
9331 _: &SelectSmallerSyntaxNode,
9332 cx: &mut ViewContext<Self>,
9333 ) {
9334 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9335 if let Some(selections) = stack.pop() {
9336 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9337 s.select(selections.to_vec());
9338 });
9339 }
9340 self.select_larger_syntax_node_stack = stack;
9341 }
9342
9343 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9344 if !EditorSettings::get_global(cx).gutter.runnables {
9345 self.clear_tasks();
9346 return Task::ready(());
9347 }
9348 let project = self.project.as_ref().map(Model::downgrade);
9349 cx.spawn(|this, mut cx| async move {
9350 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
9351 let Some(project) = project.and_then(|p| p.upgrade()) else {
9352 return;
9353 };
9354 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9355 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9356 }) else {
9357 return;
9358 };
9359
9360 let hide_runnables = project
9361 .update(&mut cx, |project, cx| {
9362 // Do not display any test indicators in non-dev server remote projects.
9363 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9364 })
9365 .unwrap_or(true);
9366 if hide_runnables {
9367 return;
9368 }
9369 let new_rows =
9370 cx.background_executor()
9371 .spawn({
9372 let snapshot = display_snapshot.clone();
9373 async move {
9374 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9375 }
9376 })
9377 .await;
9378 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9379
9380 this.update(&mut cx, |this, _| {
9381 this.clear_tasks();
9382 for (key, value) in rows {
9383 this.insert_tasks(key, value);
9384 }
9385 })
9386 .ok();
9387 })
9388 }
9389 fn fetch_runnable_ranges(
9390 snapshot: &DisplaySnapshot,
9391 range: Range<Anchor>,
9392 ) -> Vec<language::RunnableRange> {
9393 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9394 }
9395
9396 fn runnable_rows(
9397 project: Model<Project>,
9398 snapshot: DisplaySnapshot,
9399 runnable_ranges: Vec<RunnableRange>,
9400 mut cx: AsyncWindowContext,
9401 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9402 runnable_ranges
9403 .into_iter()
9404 .filter_map(|mut runnable| {
9405 let tasks = cx
9406 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9407 .ok()?;
9408 if tasks.is_empty() {
9409 return None;
9410 }
9411
9412 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9413
9414 let row = snapshot
9415 .buffer_snapshot
9416 .buffer_line_for_row(MultiBufferRow(point.row))?
9417 .1
9418 .start
9419 .row;
9420
9421 let context_range =
9422 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9423 Some((
9424 (runnable.buffer_id, row),
9425 RunnableTasks {
9426 templates: tasks,
9427 offset: MultiBufferOffset(runnable.run_range.start),
9428 context_range,
9429 column: point.column,
9430 extra_variables: runnable.extra_captures,
9431 },
9432 ))
9433 })
9434 .collect()
9435 }
9436
9437 fn templates_with_tags(
9438 project: &Model<Project>,
9439 runnable: &mut Runnable,
9440 cx: &WindowContext<'_>,
9441 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9442 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9443 let (worktree_id, file) = project
9444 .buffer_for_id(runnable.buffer, cx)
9445 .and_then(|buffer| buffer.read(cx).file())
9446 .map(|file| (file.worktree_id(cx), file.clone()))
9447 .unzip();
9448
9449 (
9450 project.task_store().read(cx).task_inventory().cloned(),
9451 worktree_id,
9452 file,
9453 )
9454 });
9455
9456 let tags = mem::take(&mut runnable.tags);
9457 let mut tags: Vec<_> = tags
9458 .into_iter()
9459 .flat_map(|tag| {
9460 let tag = tag.0.clone();
9461 inventory
9462 .as_ref()
9463 .into_iter()
9464 .flat_map(|inventory| {
9465 inventory.read(cx).list_tasks(
9466 file.clone(),
9467 Some(runnable.language.clone()),
9468 worktree_id,
9469 cx,
9470 )
9471 })
9472 .filter(move |(_, template)| {
9473 template.tags.iter().any(|source_tag| source_tag == &tag)
9474 })
9475 })
9476 .sorted_by_key(|(kind, _)| kind.to_owned())
9477 .collect();
9478 if let Some((leading_tag_source, _)) = tags.first() {
9479 // Strongest source wins; if we have worktree tag binding, prefer that to
9480 // global and language bindings;
9481 // if we have a global binding, prefer that to language binding.
9482 let first_mismatch = tags
9483 .iter()
9484 .position(|(tag_source, _)| tag_source != leading_tag_source);
9485 if let Some(index) = first_mismatch {
9486 tags.truncate(index);
9487 }
9488 }
9489
9490 tags
9491 }
9492
9493 pub fn move_to_enclosing_bracket(
9494 &mut self,
9495 _: &MoveToEnclosingBracket,
9496 cx: &mut ViewContext<Self>,
9497 ) {
9498 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9499 s.move_offsets_with(|snapshot, selection| {
9500 let Some(enclosing_bracket_ranges) =
9501 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9502 else {
9503 return;
9504 };
9505
9506 let mut best_length = usize::MAX;
9507 let mut best_inside = false;
9508 let mut best_in_bracket_range = false;
9509 let mut best_destination = None;
9510 for (open, close) in enclosing_bracket_ranges {
9511 let close = close.to_inclusive();
9512 let length = close.end() - open.start;
9513 let inside = selection.start >= open.end && selection.end <= *close.start();
9514 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9515 || close.contains(&selection.head());
9516
9517 // If best is next to a bracket and current isn't, skip
9518 if !in_bracket_range && best_in_bracket_range {
9519 continue;
9520 }
9521
9522 // Prefer smaller lengths unless best is inside and current isn't
9523 if length > best_length && (best_inside || !inside) {
9524 continue;
9525 }
9526
9527 best_length = length;
9528 best_inside = inside;
9529 best_in_bracket_range = in_bracket_range;
9530 best_destination = Some(
9531 if close.contains(&selection.start) && close.contains(&selection.end) {
9532 if inside {
9533 open.end
9534 } else {
9535 open.start
9536 }
9537 } else if inside {
9538 *close.start()
9539 } else {
9540 *close.end()
9541 },
9542 );
9543 }
9544
9545 if let Some(destination) = best_destination {
9546 selection.collapse_to(destination, SelectionGoal::None);
9547 }
9548 })
9549 });
9550 }
9551
9552 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9553 self.end_selection(cx);
9554 self.selection_history.mode = SelectionHistoryMode::Undoing;
9555 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9556 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9557 self.select_next_state = entry.select_next_state;
9558 self.select_prev_state = entry.select_prev_state;
9559 self.add_selections_state = entry.add_selections_state;
9560 self.request_autoscroll(Autoscroll::newest(), cx);
9561 }
9562 self.selection_history.mode = SelectionHistoryMode::Normal;
9563 }
9564
9565 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9566 self.end_selection(cx);
9567 self.selection_history.mode = SelectionHistoryMode::Redoing;
9568 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9569 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9570 self.select_next_state = entry.select_next_state;
9571 self.select_prev_state = entry.select_prev_state;
9572 self.add_selections_state = entry.add_selections_state;
9573 self.request_autoscroll(Autoscroll::newest(), cx);
9574 }
9575 self.selection_history.mode = SelectionHistoryMode::Normal;
9576 }
9577
9578 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9579 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9580 }
9581
9582 pub fn expand_excerpts_down(
9583 &mut self,
9584 action: &ExpandExcerptsDown,
9585 cx: &mut ViewContext<Self>,
9586 ) {
9587 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9588 }
9589
9590 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9591 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9592 }
9593
9594 pub fn expand_excerpts_for_direction(
9595 &mut self,
9596 lines: u32,
9597 direction: ExpandExcerptDirection,
9598 cx: &mut ViewContext<Self>,
9599 ) {
9600 let selections = self.selections.disjoint_anchors();
9601
9602 let lines = if lines == 0 {
9603 EditorSettings::get_global(cx).expand_excerpt_lines
9604 } else {
9605 lines
9606 };
9607
9608 self.buffer.update(cx, |buffer, cx| {
9609 buffer.expand_excerpts(
9610 selections
9611 .iter()
9612 .map(|selection| selection.head().excerpt_id)
9613 .dedup(),
9614 lines,
9615 direction,
9616 cx,
9617 )
9618 })
9619 }
9620
9621 pub fn expand_excerpt(
9622 &mut self,
9623 excerpt: ExcerptId,
9624 direction: ExpandExcerptDirection,
9625 cx: &mut ViewContext<Self>,
9626 ) {
9627 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9628 self.buffer.update(cx, |buffer, cx| {
9629 buffer.expand_excerpts([excerpt], lines, direction, cx)
9630 })
9631 }
9632
9633 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9634 self.go_to_diagnostic_impl(Direction::Next, cx)
9635 }
9636
9637 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9638 self.go_to_diagnostic_impl(Direction::Prev, cx)
9639 }
9640
9641 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9642 let buffer = self.buffer.read(cx).snapshot(cx);
9643 let selection = self.selections.newest::<usize>(cx);
9644
9645 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9646 if direction == Direction::Next {
9647 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9648 let (group_id, jump_to) = popover.activation_info();
9649 if self.activate_diagnostics(group_id, cx) {
9650 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9651 let mut new_selection = s.newest_anchor().clone();
9652 new_selection.collapse_to(jump_to, SelectionGoal::None);
9653 s.select_anchors(vec![new_selection.clone()]);
9654 });
9655 }
9656 return;
9657 }
9658 }
9659
9660 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9661 active_diagnostics
9662 .primary_range
9663 .to_offset(&buffer)
9664 .to_inclusive()
9665 });
9666 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9667 if active_primary_range.contains(&selection.head()) {
9668 *active_primary_range.start()
9669 } else {
9670 selection.head()
9671 }
9672 } else {
9673 selection.head()
9674 };
9675 let snapshot = self.snapshot(cx);
9676 loop {
9677 let diagnostics = if direction == Direction::Prev {
9678 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9679 } else {
9680 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9681 }
9682 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9683 let group = diagnostics
9684 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9685 // be sorted in a stable way
9686 // skip until we are at current active diagnostic, if it exists
9687 .skip_while(|entry| {
9688 (match direction {
9689 Direction::Prev => entry.range.start >= search_start,
9690 Direction::Next => entry.range.start <= search_start,
9691 }) && self
9692 .active_diagnostics
9693 .as_ref()
9694 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9695 })
9696 .find_map(|entry| {
9697 if entry.diagnostic.is_primary
9698 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9699 && !entry.range.is_empty()
9700 // if we match with the active diagnostic, skip it
9701 && Some(entry.diagnostic.group_id)
9702 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9703 {
9704 Some((entry.range, entry.diagnostic.group_id))
9705 } else {
9706 None
9707 }
9708 });
9709
9710 if let Some((primary_range, group_id)) = group {
9711 if self.activate_diagnostics(group_id, cx) {
9712 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9713 s.select(vec![Selection {
9714 id: selection.id,
9715 start: primary_range.start,
9716 end: primary_range.start,
9717 reversed: false,
9718 goal: SelectionGoal::None,
9719 }]);
9720 });
9721 }
9722 break;
9723 } else {
9724 // Cycle around to the start of the buffer, potentially moving back to the start of
9725 // the currently active diagnostic.
9726 active_primary_range.take();
9727 if direction == Direction::Prev {
9728 if search_start == buffer.len() {
9729 break;
9730 } else {
9731 search_start = buffer.len();
9732 }
9733 } else if search_start == 0 {
9734 break;
9735 } else {
9736 search_start = 0;
9737 }
9738 }
9739 }
9740 }
9741
9742 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9743 let snapshot = self
9744 .display_map
9745 .update(cx, |display_map, cx| display_map.snapshot(cx));
9746 let selection = self.selections.newest::<Point>(cx);
9747 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9748 }
9749
9750 fn go_to_hunk_after_position(
9751 &mut self,
9752 snapshot: &DisplaySnapshot,
9753 position: Point,
9754 cx: &mut ViewContext<'_, Editor>,
9755 ) -> Option<MultiBufferDiffHunk> {
9756 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9757 snapshot,
9758 position,
9759 false,
9760 snapshot
9761 .buffer_snapshot
9762 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9763 cx,
9764 ) {
9765 return Some(hunk);
9766 }
9767
9768 let wrapped_point = Point::zero();
9769 self.go_to_next_hunk_in_direction(
9770 snapshot,
9771 wrapped_point,
9772 true,
9773 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9774 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9775 ),
9776 cx,
9777 )
9778 }
9779
9780 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9781 let snapshot = self
9782 .display_map
9783 .update(cx, |display_map, cx| display_map.snapshot(cx));
9784 let selection = self.selections.newest::<Point>(cx);
9785
9786 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9787 }
9788
9789 fn go_to_hunk_before_position(
9790 &mut self,
9791 snapshot: &DisplaySnapshot,
9792 position: Point,
9793 cx: &mut ViewContext<'_, Editor>,
9794 ) -> Option<MultiBufferDiffHunk> {
9795 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9796 snapshot,
9797 position,
9798 false,
9799 snapshot
9800 .buffer_snapshot
9801 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9802 cx,
9803 ) {
9804 return Some(hunk);
9805 }
9806
9807 let wrapped_point = snapshot.buffer_snapshot.max_point();
9808 self.go_to_next_hunk_in_direction(
9809 snapshot,
9810 wrapped_point,
9811 true,
9812 snapshot
9813 .buffer_snapshot
9814 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9815 cx,
9816 )
9817 }
9818
9819 fn go_to_next_hunk_in_direction(
9820 &mut self,
9821 snapshot: &DisplaySnapshot,
9822 initial_point: Point,
9823 is_wrapped: bool,
9824 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9825 cx: &mut ViewContext<Editor>,
9826 ) -> Option<MultiBufferDiffHunk> {
9827 let display_point = initial_point.to_display_point(snapshot);
9828 let mut hunks = hunks
9829 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9830 .filter(|(display_hunk, _)| {
9831 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9832 })
9833 .dedup();
9834
9835 if let Some((display_hunk, hunk)) = hunks.next() {
9836 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9837 let row = display_hunk.start_display_row();
9838 let point = DisplayPoint::new(row, 0);
9839 s.select_display_ranges([point..point]);
9840 });
9841
9842 Some(hunk)
9843 } else {
9844 None
9845 }
9846 }
9847
9848 pub fn go_to_definition(
9849 &mut self,
9850 _: &GoToDefinition,
9851 cx: &mut ViewContext<Self>,
9852 ) -> Task<Result<Navigated>> {
9853 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9854 cx.spawn(|editor, mut cx| async move {
9855 if definition.await? == Navigated::Yes {
9856 return Ok(Navigated::Yes);
9857 }
9858 match editor.update(&mut cx, |editor, cx| {
9859 editor.find_all_references(&FindAllReferences, cx)
9860 })? {
9861 Some(references) => references.await,
9862 None => Ok(Navigated::No),
9863 }
9864 })
9865 }
9866
9867 pub fn go_to_declaration(
9868 &mut self,
9869 _: &GoToDeclaration,
9870 cx: &mut ViewContext<Self>,
9871 ) -> Task<Result<Navigated>> {
9872 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9873 }
9874
9875 pub fn go_to_declaration_split(
9876 &mut self,
9877 _: &GoToDeclaration,
9878 cx: &mut ViewContext<Self>,
9879 ) -> Task<Result<Navigated>> {
9880 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9881 }
9882
9883 pub fn go_to_implementation(
9884 &mut self,
9885 _: &GoToImplementation,
9886 cx: &mut ViewContext<Self>,
9887 ) -> Task<Result<Navigated>> {
9888 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9889 }
9890
9891 pub fn go_to_implementation_split(
9892 &mut self,
9893 _: &GoToImplementationSplit,
9894 cx: &mut ViewContext<Self>,
9895 ) -> Task<Result<Navigated>> {
9896 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9897 }
9898
9899 pub fn go_to_type_definition(
9900 &mut self,
9901 _: &GoToTypeDefinition,
9902 cx: &mut ViewContext<Self>,
9903 ) -> Task<Result<Navigated>> {
9904 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9905 }
9906
9907 pub fn go_to_definition_split(
9908 &mut self,
9909 _: &GoToDefinitionSplit,
9910 cx: &mut ViewContext<Self>,
9911 ) -> Task<Result<Navigated>> {
9912 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9913 }
9914
9915 pub fn go_to_type_definition_split(
9916 &mut self,
9917 _: &GoToTypeDefinitionSplit,
9918 cx: &mut ViewContext<Self>,
9919 ) -> Task<Result<Navigated>> {
9920 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9921 }
9922
9923 fn go_to_definition_of_kind(
9924 &mut self,
9925 kind: GotoDefinitionKind,
9926 split: bool,
9927 cx: &mut ViewContext<Self>,
9928 ) -> Task<Result<Navigated>> {
9929 let Some(provider) = self.semantics_provider.clone() else {
9930 return Task::ready(Ok(Navigated::No));
9931 };
9932 let head = self.selections.newest::<usize>(cx).head();
9933 let buffer = self.buffer.read(cx);
9934 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9935 text_anchor
9936 } else {
9937 return Task::ready(Ok(Navigated::No));
9938 };
9939
9940 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9941 return Task::ready(Ok(Navigated::No));
9942 };
9943
9944 cx.spawn(|editor, mut cx| async move {
9945 let definitions = definitions.await?;
9946 let navigated = editor
9947 .update(&mut cx, |editor, cx| {
9948 editor.navigate_to_hover_links(
9949 Some(kind),
9950 definitions
9951 .into_iter()
9952 .filter(|location| {
9953 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9954 })
9955 .map(HoverLink::Text)
9956 .collect::<Vec<_>>(),
9957 split,
9958 cx,
9959 )
9960 })?
9961 .await?;
9962 anyhow::Ok(navigated)
9963 })
9964 }
9965
9966 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9967 let position = self.selections.newest_anchor().head();
9968 let Some((buffer, buffer_position)) =
9969 self.buffer.read(cx).text_anchor_for_position(position, cx)
9970 else {
9971 return;
9972 };
9973
9974 cx.spawn(|editor, mut cx| async move {
9975 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9976 editor.update(&mut cx, |_, cx| {
9977 cx.open_url(&url);
9978 })
9979 } else {
9980 Ok(())
9981 }
9982 })
9983 .detach();
9984 }
9985
9986 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9987 let Some(workspace) = self.workspace() else {
9988 return;
9989 };
9990
9991 let position = self.selections.newest_anchor().head();
9992
9993 let Some((buffer, buffer_position)) =
9994 self.buffer.read(cx).text_anchor_for_position(position, cx)
9995 else {
9996 return;
9997 };
9998
9999 let project = self.project.clone();
10000
10001 cx.spawn(|_, mut cx| async move {
10002 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
10003
10004 if let Some((_, path)) = result {
10005 workspace
10006 .update(&mut cx, |workspace, cx| {
10007 workspace.open_resolved_path(path, cx)
10008 })?
10009 .await?;
10010 }
10011 anyhow::Ok(())
10012 })
10013 .detach();
10014 }
10015
10016 pub(crate) fn navigate_to_hover_links(
10017 &mut self,
10018 kind: Option<GotoDefinitionKind>,
10019 mut definitions: Vec<HoverLink>,
10020 split: bool,
10021 cx: &mut ViewContext<Editor>,
10022 ) -> Task<Result<Navigated>> {
10023 // If there is one definition, just open it directly
10024 if definitions.len() == 1 {
10025 let definition = definitions.pop().unwrap();
10026
10027 enum TargetTaskResult {
10028 Location(Option<Location>),
10029 AlreadyNavigated,
10030 }
10031
10032 let target_task = match definition {
10033 HoverLink::Text(link) => {
10034 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
10035 }
10036 HoverLink::InlayHint(lsp_location, server_id) => {
10037 let computation = self.compute_target_location(lsp_location, server_id, cx);
10038 cx.background_executor().spawn(async move {
10039 let location = computation.await?;
10040 Ok(TargetTaskResult::Location(location))
10041 })
10042 }
10043 HoverLink::Url(url) => {
10044 cx.open_url(&url);
10045 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
10046 }
10047 HoverLink::File(path) => {
10048 if let Some(workspace) = self.workspace() {
10049 cx.spawn(|_, mut cx| async move {
10050 workspace
10051 .update(&mut cx, |workspace, cx| {
10052 workspace.open_resolved_path(path, cx)
10053 })?
10054 .await
10055 .map(|_| TargetTaskResult::AlreadyNavigated)
10056 })
10057 } else {
10058 Task::ready(Ok(TargetTaskResult::Location(None)))
10059 }
10060 }
10061 };
10062 cx.spawn(|editor, mut cx| async move {
10063 let target = match target_task.await.context("target resolution task")? {
10064 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
10065 TargetTaskResult::Location(None) => return Ok(Navigated::No),
10066 TargetTaskResult::Location(Some(target)) => target,
10067 };
10068
10069 editor.update(&mut cx, |editor, cx| {
10070 let Some(workspace) = editor.workspace() else {
10071 return Navigated::No;
10072 };
10073 let pane = workspace.read(cx).active_pane().clone();
10074
10075 let range = target.range.to_offset(target.buffer.read(cx));
10076 let range = editor.range_for_match(&range);
10077
10078 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
10079 let buffer = target.buffer.read(cx);
10080 let range = check_multiline_range(buffer, range);
10081 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10082 s.select_ranges([range]);
10083 });
10084 } else {
10085 cx.window_context().defer(move |cx| {
10086 let target_editor: View<Self> =
10087 workspace.update(cx, |workspace, cx| {
10088 let pane = if split {
10089 workspace.adjacent_pane(cx)
10090 } else {
10091 workspace.active_pane().clone()
10092 };
10093
10094 workspace.open_project_item(
10095 pane,
10096 target.buffer.clone(),
10097 true,
10098 true,
10099 cx,
10100 )
10101 });
10102 target_editor.update(cx, |target_editor, cx| {
10103 // When selecting a definition in a different buffer, disable the nav history
10104 // to avoid creating a history entry at the previous cursor location.
10105 pane.update(cx, |pane, _| pane.disable_history());
10106 let buffer = target.buffer.read(cx);
10107 let range = check_multiline_range(buffer, range);
10108 target_editor.change_selections(
10109 Some(Autoscroll::focused()),
10110 cx,
10111 |s| {
10112 s.select_ranges([range]);
10113 },
10114 );
10115 pane.update(cx, |pane, _| pane.enable_history());
10116 });
10117 });
10118 }
10119 Navigated::Yes
10120 })
10121 })
10122 } else if !definitions.is_empty() {
10123 cx.spawn(|editor, mut cx| async move {
10124 let (title, location_tasks, workspace) = editor
10125 .update(&mut cx, |editor, cx| {
10126 let tab_kind = match kind {
10127 Some(GotoDefinitionKind::Implementation) => "Implementations",
10128 _ => "Definitions",
10129 };
10130 let title = definitions
10131 .iter()
10132 .find_map(|definition| match definition {
10133 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
10134 let buffer = origin.buffer.read(cx);
10135 format!(
10136 "{} for {}",
10137 tab_kind,
10138 buffer
10139 .text_for_range(origin.range.clone())
10140 .collect::<String>()
10141 )
10142 }),
10143 HoverLink::InlayHint(_, _) => None,
10144 HoverLink::Url(_) => None,
10145 HoverLink::File(_) => None,
10146 })
10147 .unwrap_or(tab_kind.to_string());
10148 let location_tasks = definitions
10149 .into_iter()
10150 .map(|definition| match definition {
10151 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
10152 HoverLink::InlayHint(lsp_location, server_id) => {
10153 editor.compute_target_location(lsp_location, server_id, cx)
10154 }
10155 HoverLink::Url(_) => Task::ready(Ok(None)),
10156 HoverLink::File(_) => Task::ready(Ok(None)),
10157 })
10158 .collect::<Vec<_>>();
10159 (title, location_tasks, editor.workspace().clone())
10160 })
10161 .context("location tasks preparation")?;
10162
10163 let locations = future::join_all(location_tasks)
10164 .await
10165 .into_iter()
10166 .filter_map(|location| location.transpose())
10167 .collect::<Result<_>>()
10168 .context("location tasks")?;
10169
10170 let Some(workspace) = workspace else {
10171 return Ok(Navigated::No);
10172 };
10173 let opened = workspace
10174 .update(&mut cx, |workspace, cx| {
10175 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
10176 })
10177 .ok();
10178
10179 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10180 })
10181 } else {
10182 Task::ready(Ok(Navigated::No))
10183 }
10184 }
10185
10186 fn compute_target_location(
10187 &self,
10188 lsp_location: lsp::Location,
10189 server_id: LanguageServerId,
10190 cx: &mut ViewContext<Self>,
10191 ) -> Task<anyhow::Result<Option<Location>>> {
10192 let Some(project) = self.project.clone() else {
10193 return Task::Ready(Some(Ok(None)));
10194 };
10195
10196 cx.spawn(move |editor, mut cx| async move {
10197 let location_task = editor.update(&mut cx, |_, cx| {
10198 project.update(cx, |project, cx| {
10199 let language_server_name = project
10200 .language_server_statuses(cx)
10201 .find(|(id, _)| server_id == *id)
10202 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10203 language_server_name.map(|language_server_name| {
10204 project.open_local_buffer_via_lsp(
10205 lsp_location.uri.clone(),
10206 server_id,
10207 language_server_name,
10208 cx,
10209 )
10210 })
10211 })
10212 })?;
10213 let location = match location_task {
10214 Some(task) => Some({
10215 let target_buffer_handle = task.await.context("open local buffer")?;
10216 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
10217 let target_start = target_buffer
10218 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
10219 let target_end = target_buffer
10220 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
10221 target_buffer.anchor_after(target_start)
10222 ..target_buffer.anchor_before(target_end)
10223 })?;
10224 Location {
10225 buffer: target_buffer_handle,
10226 range,
10227 }
10228 }),
10229 None => None,
10230 };
10231 Ok(location)
10232 })
10233 }
10234
10235 pub fn find_all_references(
10236 &mut self,
10237 _: &FindAllReferences,
10238 cx: &mut ViewContext<Self>,
10239 ) -> Option<Task<Result<Navigated>>> {
10240 let selection = self.selections.newest::<usize>(cx);
10241 let multi_buffer = self.buffer.read(cx);
10242 let head = selection.head();
10243
10244 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
10245 let head_anchor = multi_buffer_snapshot.anchor_at(
10246 head,
10247 if head < selection.tail() {
10248 Bias::Right
10249 } else {
10250 Bias::Left
10251 },
10252 );
10253
10254 match self
10255 .find_all_references_task_sources
10256 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
10257 {
10258 Ok(_) => {
10259 log::info!(
10260 "Ignoring repeated FindAllReferences invocation with the position of already running task"
10261 );
10262 return None;
10263 }
10264 Err(i) => {
10265 self.find_all_references_task_sources.insert(i, head_anchor);
10266 }
10267 }
10268
10269 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
10270 let workspace = self.workspace()?;
10271 let project = workspace.read(cx).project().clone();
10272 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
10273 Some(cx.spawn(|editor, mut cx| async move {
10274 let _cleanup = defer({
10275 let mut cx = cx.clone();
10276 move || {
10277 let _ = editor.update(&mut cx, |editor, _| {
10278 if let Ok(i) =
10279 editor
10280 .find_all_references_task_sources
10281 .binary_search_by(|anchor| {
10282 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
10283 })
10284 {
10285 editor.find_all_references_task_sources.remove(i);
10286 }
10287 });
10288 }
10289 });
10290
10291 let locations = references.await?;
10292 if locations.is_empty() {
10293 return anyhow::Ok(Navigated::No);
10294 }
10295
10296 workspace.update(&mut cx, |workspace, cx| {
10297 let title = locations
10298 .first()
10299 .as_ref()
10300 .map(|location| {
10301 let buffer = location.buffer.read(cx);
10302 format!(
10303 "References to `{}`",
10304 buffer
10305 .text_for_range(location.range.clone())
10306 .collect::<String>()
10307 )
10308 })
10309 .unwrap();
10310 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10311 Navigated::Yes
10312 })
10313 }))
10314 }
10315
10316 /// Opens a multibuffer with the given project locations in it
10317 pub fn open_locations_in_multibuffer(
10318 workspace: &mut Workspace,
10319 mut locations: Vec<Location>,
10320 title: String,
10321 split: bool,
10322 cx: &mut ViewContext<Workspace>,
10323 ) {
10324 // If there are multiple definitions, open them in a multibuffer
10325 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10326 let mut locations = locations.into_iter().peekable();
10327 let mut ranges_to_highlight = Vec::new();
10328 let capability = workspace.project().read(cx).capability();
10329
10330 let excerpt_buffer = cx.new_model(|cx| {
10331 let mut multibuffer = MultiBuffer::new(capability);
10332 while let Some(location) = locations.next() {
10333 let buffer = location.buffer.read(cx);
10334 let mut ranges_for_buffer = Vec::new();
10335 let range = location.range.to_offset(buffer);
10336 ranges_for_buffer.push(range.clone());
10337
10338 while let Some(next_location) = locations.peek() {
10339 if next_location.buffer == location.buffer {
10340 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10341 locations.next();
10342 } else {
10343 break;
10344 }
10345 }
10346
10347 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10348 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10349 location.buffer.clone(),
10350 ranges_for_buffer,
10351 DEFAULT_MULTIBUFFER_CONTEXT,
10352 cx,
10353 ))
10354 }
10355
10356 multibuffer.with_title(title)
10357 });
10358
10359 let editor = cx.new_view(|cx| {
10360 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10361 });
10362 editor.update(cx, |editor, cx| {
10363 if let Some(first_range) = ranges_to_highlight.first() {
10364 editor.change_selections(None, cx, |selections| {
10365 selections.clear_disjoint();
10366 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10367 });
10368 }
10369 editor.highlight_background::<Self>(
10370 &ranges_to_highlight,
10371 |theme| theme.editor_highlighted_line_background,
10372 cx,
10373 );
10374 });
10375
10376 let item = Box::new(editor);
10377 let item_id = item.item_id();
10378
10379 if split {
10380 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10381 } else {
10382 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10383 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10384 pane.close_current_preview_item(cx)
10385 } else {
10386 None
10387 }
10388 });
10389 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10390 }
10391 workspace.active_pane().update(cx, |pane, cx| {
10392 pane.set_preview_item_id(Some(item_id), cx);
10393 });
10394 }
10395
10396 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10397 use language::ToOffset as _;
10398
10399 let provider = self.semantics_provider.clone()?;
10400 let selection = self.selections.newest_anchor().clone();
10401 let (cursor_buffer, cursor_buffer_position) = self
10402 .buffer
10403 .read(cx)
10404 .text_anchor_for_position(selection.head(), cx)?;
10405 let (tail_buffer, cursor_buffer_position_end) = self
10406 .buffer
10407 .read(cx)
10408 .text_anchor_for_position(selection.tail(), cx)?;
10409 if tail_buffer != cursor_buffer {
10410 return None;
10411 }
10412
10413 let snapshot = cursor_buffer.read(cx).snapshot();
10414 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10415 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10416 let prepare_rename = provider
10417 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10418 .unwrap_or_else(|| Task::ready(Ok(None)));
10419 drop(snapshot);
10420
10421 Some(cx.spawn(|this, mut cx| async move {
10422 let rename_range = if let Some(range) = prepare_rename.await? {
10423 Some(range)
10424 } else {
10425 this.update(&mut cx, |this, cx| {
10426 let buffer = this.buffer.read(cx).snapshot(cx);
10427 let mut buffer_highlights = this
10428 .document_highlights_for_position(selection.head(), &buffer)
10429 .filter(|highlight| {
10430 highlight.start.excerpt_id == selection.head().excerpt_id
10431 && highlight.end.excerpt_id == selection.head().excerpt_id
10432 });
10433 buffer_highlights
10434 .next()
10435 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10436 })?
10437 };
10438 if let Some(rename_range) = rename_range {
10439 this.update(&mut cx, |this, cx| {
10440 let snapshot = cursor_buffer.read(cx).snapshot();
10441 let rename_buffer_range = rename_range.to_offset(&snapshot);
10442 let cursor_offset_in_rename_range =
10443 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10444 let cursor_offset_in_rename_range_end =
10445 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10446
10447 this.take_rename(false, cx);
10448 let buffer = this.buffer.read(cx).read(cx);
10449 let cursor_offset = selection.head().to_offset(&buffer);
10450 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10451 let rename_end = rename_start + rename_buffer_range.len();
10452 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10453 let mut old_highlight_id = None;
10454 let old_name: Arc<str> = buffer
10455 .chunks(rename_start..rename_end, true)
10456 .map(|chunk| {
10457 if old_highlight_id.is_none() {
10458 old_highlight_id = chunk.syntax_highlight_id;
10459 }
10460 chunk.text
10461 })
10462 .collect::<String>()
10463 .into();
10464
10465 drop(buffer);
10466
10467 // Position the selection in the rename editor so that it matches the current selection.
10468 this.show_local_selections = false;
10469 let rename_editor = cx.new_view(|cx| {
10470 let mut editor = Editor::single_line(cx);
10471 editor.buffer.update(cx, |buffer, cx| {
10472 buffer.edit([(0..0, old_name.clone())], None, cx)
10473 });
10474 let rename_selection_range = match cursor_offset_in_rename_range
10475 .cmp(&cursor_offset_in_rename_range_end)
10476 {
10477 Ordering::Equal => {
10478 editor.select_all(&SelectAll, cx);
10479 return editor;
10480 }
10481 Ordering::Less => {
10482 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10483 }
10484 Ordering::Greater => {
10485 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10486 }
10487 };
10488 if rename_selection_range.end > old_name.len() {
10489 editor.select_all(&SelectAll, cx);
10490 } else {
10491 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10492 s.select_ranges([rename_selection_range]);
10493 });
10494 }
10495 editor
10496 });
10497 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10498 if e == &EditorEvent::Focused {
10499 cx.emit(EditorEvent::FocusedIn)
10500 }
10501 })
10502 .detach();
10503
10504 let write_highlights =
10505 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10506 let read_highlights =
10507 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10508 let ranges = write_highlights
10509 .iter()
10510 .flat_map(|(_, ranges)| ranges.iter())
10511 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10512 .cloned()
10513 .collect();
10514
10515 this.highlight_text::<Rename>(
10516 ranges,
10517 HighlightStyle {
10518 fade_out: Some(0.6),
10519 ..Default::default()
10520 },
10521 cx,
10522 );
10523 let rename_focus_handle = rename_editor.focus_handle(cx);
10524 cx.focus(&rename_focus_handle);
10525 let block_id = this.insert_blocks(
10526 [BlockProperties {
10527 style: BlockStyle::Flex,
10528 placement: BlockPlacement::Below(range.start),
10529 height: 1,
10530 render: Arc::new({
10531 let rename_editor = rename_editor.clone();
10532 move |cx: &mut BlockContext| {
10533 let mut text_style = cx.editor_style.text.clone();
10534 if let Some(highlight_style) = old_highlight_id
10535 .and_then(|h| h.style(&cx.editor_style.syntax))
10536 {
10537 text_style = text_style.highlight(highlight_style);
10538 }
10539 div()
10540 .block_mouse_down()
10541 .pl(cx.anchor_x)
10542 .child(EditorElement::new(
10543 &rename_editor,
10544 EditorStyle {
10545 background: cx.theme().system().transparent,
10546 local_player: cx.editor_style.local_player,
10547 text: text_style,
10548 scrollbar_width: cx.editor_style.scrollbar_width,
10549 syntax: cx.editor_style.syntax.clone(),
10550 status: cx.editor_style.status.clone(),
10551 inlay_hints_style: HighlightStyle {
10552 font_weight: Some(FontWeight::BOLD),
10553 ..make_inlay_hints_style(cx)
10554 },
10555 suggestions_style: HighlightStyle {
10556 color: Some(cx.theme().status().predictive),
10557 ..HighlightStyle::default()
10558 },
10559 ..EditorStyle::default()
10560 },
10561 ))
10562 .into_any_element()
10563 }
10564 }),
10565 priority: 0,
10566 }],
10567 Some(Autoscroll::fit()),
10568 cx,
10569 )[0];
10570 this.pending_rename = Some(RenameState {
10571 range,
10572 old_name,
10573 editor: rename_editor,
10574 block_id,
10575 });
10576 })?;
10577 }
10578
10579 Ok(())
10580 }))
10581 }
10582
10583 pub fn confirm_rename(
10584 &mut self,
10585 _: &ConfirmRename,
10586 cx: &mut ViewContext<Self>,
10587 ) -> Option<Task<Result<()>>> {
10588 let rename = self.take_rename(false, cx)?;
10589 let workspace = self.workspace()?.downgrade();
10590 let (buffer, start) = self
10591 .buffer
10592 .read(cx)
10593 .text_anchor_for_position(rename.range.start, cx)?;
10594 let (end_buffer, _) = self
10595 .buffer
10596 .read(cx)
10597 .text_anchor_for_position(rename.range.end, cx)?;
10598 if buffer != end_buffer {
10599 return None;
10600 }
10601
10602 let old_name = rename.old_name;
10603 let new_name = rename.editor.read(cx).text(cx);
10604
10605 let rename = self.semantics_provider.as_ref()?.perform_rename(
10606 &buffer,
10607 start,
10608 new_name.clone(),
10609 cx,
10610 )?;
10611
10612 Some(cx.spawn(|editor, mut cx| async move {
10613 let project_transaction = rename.await?;
10614 Self::open_project_transaction(
10615 &editor,
10616 workspace,
10617 project_transaction,
10618 format!("Rename: {} → {}", old_name, new_name),
10619 cx.clone(),
10620 )
10621 .await?;
10622
10623 editor.update(&mut cx, |editor, cx| {
10624 editor.refresh_document_highlights(cx);
10625 })?;
10626 Ok(())
10627 }))
10628 }
10629
10630 fn take_rename(
10631 &mut self,
10632 moving_cursor: bool,
10633 cx: &mut ViewContext<Self>,
10634 ) -> Option<RenameState> {
10635 let rename = self.pending_rename.take()?;
10636 if rename.editor.focus_handle(cx).is_focused(cx) {
10637 cx.focus(&self.focus_handle);
10638 }
10639
10640 self.remove_blocks(
10641 [rename.block_id].into_iter().collect(),
10642 Some(Autoscroll::fit()),
10643 cx,
10644 );
10645 self.clear_highlights::<Rename>(cx);
10646 self.show_local_selections = true;
10647
10648 if moving_cursor {
10649 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10650 editor.selections.newest::<usize>(cx).head()
10651 });
10652
10653 // Update the selection to match the position of the selection inside
10654 // the rename editor.
10655 let snapshot = self.buffer.read(cx).read(cx);
10656 let rename_range = rename.range.to_offset(&snapshot);
10657 let cursor_in_editor = snapshot
10658 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10659 .min(rename_range.end);
10660 drop(snapshot);
10661
10662 self.change_selections(None, cx, |s| {
10663 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10664 });
10665 } else {
10666 self.refresh_document_highlights(cx);
10667 }
10668
10669 Some(rename)
10670 }
10671
10672 pub fn pending_rename(&self) -> Option<&RenameState> {
10673 self.pending_rename.as_ref()
10674 }
10675
10676 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10677 let project = match &self.project {
10678 Some(project) => project.clone(),
10679 None => return None,
10680 };
10681
10682 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10683 }
10684
10685 fn format_selections(
10686 &mut self,
10687 _: &FormatSelections,
10688 cx: &mut ViewContext<Self>,
10689 ) -> Option<Task<Result<()>>> {
10690 let project = match &self.project {
10691 Some(project) => project.clone(),
10692 None => return None,
10693 };
10694
10695 let selections = self
10696 .selections
10697 .all_adjusted(cx)
10698 .into_iter()
10699 .filter(|s| !s.is_empty())
10700 .collect_vec();
10701
10702 Some(self.perform_format(
10703 project,
10704 FormatTrigger::Manual,
10705 FormatTarget::Ranges(selections),
10706 cx,
10707 ))
10708 }
10709
10710 fn perform_format(
10711 &mut self,
10712 project: Model<Project>,
10713 trigger: FormatTrigger,
10714 target: FormatTarget,
10715 cx: &mut ViewContext<Self>,
10716 ) -> Task<Result<()>> {
10717 let buffer = self.buffer().clone();
10718 let mut buffers = buffer.read(cx).all_buffers();
10719 if trigger == FormatTrigger::Save {
10720 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10721 }
10722
10723 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10724 let format = project.update(cx, |project, cx| {
10725 project.format(buffers, true, trigger, target, cx)
10726 });
10727
10728 cx.spawn(|_, mut cx| async move {
10729 let transaction = futures::select_biased! {
10730 () = timeout => {
10731 log::warn!("timed out waiting for formatting");
10732 None
10733 }
10734 transaction = format.log_err().fuse() => transaction,
10735 };
10736
10737 buffer
10738 .update(&mut cx, |buffer, cx| {
10739 if let Some(transaction) = transaction {
10740 if !buffer.is_singleton() {
10741 buffer.push_transaction(&transaction.0, cx);
10742 }
10743 }
10744
10745 cx.notify();
10746 })
10747 .ok();
10748
10749 Ok(())
10750 })
10751 }
10752
10753 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10754 if let Some(project) = self.project.clone() {
10755 self.buffer.update(cx, |multi_buffer, cx| {
10756 project.update(cx, |project, cx| {
10757 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10758 });
10759 })
10760 }
10761 }
10762
10763 fn cancel_language_server_work(
10764 &mut self,
10765 _: &actions::CancelLanguageServerWork,
10766 cx: &mut ViewContext<Self>,
10767 ) {
10768 if let Some(project) = self.project.clone() {
10769 self.buffer.update(cx, |multi_buffer, cx| {
10770 project.update(cx, |project, cx| {
10771 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10772 });
10773 })
10774 }
10775 }
10776
10777 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10778 cx.show_character_palette();
10779 }
10780
10781 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10782 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10783 let buffer = self.buffer.read(cx).snapshot(cx);
10784 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10785 let is_valid = buffer
10786 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10787 .any(|entry| {
10788 entry.diagnostic.is_primary
10789 && !entry.range.is_empty()
10790 && entry.range.start == primary_range_start
10791 && entry.diagnostic.message == active_diagnostics.primary_message
10792 });
10793
10794 if is_valid != active_diagnostics.is_valid {
10795 active_diagnostics.is_valid = is_valid;
10796 let mut new_styles = HashMap::default();
10797 for (block_id, diagnostic) in &active_diagnostics.blocks {
10798 new_styles.insert(
10799 *block_id,
10800 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10801 );
10802 }
10803 self.display_map.update(cx, |display_map, _cx| {
10804 display_map.replace_blocks(new_styles)
10805 });
10806 }
10807 }
10808 }
10809
10810 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10811 self.dismiss_diagnostics(cx);
10812 let snapshot = self.snapshot(cx);
10813 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10814 let buffer = self.buffer.read(cx).snapshot(cx);
10815
10816 let mut primary_range = None;
10817 let mut primary_message = None;
10818 let mut group_end = Point::zero();
10819 let diagnostic_group = buffer
10820 .diagnostic_group::<MultiBufferPoint>(group_id)
10821 .filter_map(|entry| {
10822 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10823 && (entry.range.start.row == entry.range.end.row
10824 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10825 {
10826 return None;
10827 }
10828 if entry.range.end > group_end {
10829 group_end = entry.range.end;
10830 }
10831 if entry.diagnostic.is_primary {
10832 primary_range = Some(entry.range.clone());
10833 primary_message = Some(entry.diagnostic.message.clone());
10834 }
10835 Some(entry)
10836 })
10837 .collect::<Vec<_>>();
10838 let primary_range = primary_range?;
10839 let primary_message = primary_message?;
10840 let primary_range =
10841 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10842
10843 let blocks = display_map
10844 .insert_blocks(
10845 diagnostic_group.iter().map(|entry| {
10846 let diagnostic = entry.diagnostic.clone();
10847 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10848 BlockProperties {
10849 style: BlockStyle::Fixed,
10850 placement: BlockPlacement::Below(
10851 buffer.anchor_after(entry.range.start),
10852 ),
10853 height: message_height,
10854 render: diagnostic_block_renderer(diagnostic, None, true, true),
10855 priority: 0,
10856 }
10857 }),
10858 cx,
10859 )
10860 .into_iter()
10861 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10862 .collect();
10863
10864 Some(ActiveDiagnosticGroup {
10865 primary_range,
10866 primary_message,
10867 group_id,
10868 blocks,
10869 is_valid: true,
10870 })
10871 });
10872 self.active_diagnostics.is_some()
10873 }
10874
10875 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10876 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10877 self.display_map.update(cx, |display_map, cx| {
10878 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10879 });
10880 cx.notify();
10881 }
10882 }
10883
10884 pub fn set_selections_from_remote(
10885 &mut self,
10886 selections: Vec<Selection<Anchor>>,
10887 pending_selection: Option<Selection<Anchor>>,
10888 cx: &mut ViewContext<Self>,
10889 ) {
10890 let old_cursor_position = self.selections.newest_anchor().head();
10891 self.selections.change_with(cx, |s| {
10892 s.select_anchors(selections);
10893 if let Some(pending_selection) = pending_selection {
10894 s.set_pending(pending_selection, SelectMode::Character);
10895 } else {
10896 s.clear_pending();
10897 }
10898 });
10899 self.selections_did_change(false, &old_cursor_position, true, cx);
10900 }
10901
10902 fn push_to_selection_history(&mut self) {
10903 self.selection_history.push(SelectionHistoryEntry {
10904 selections: self.selections.disjoint_anchors(),
10905 select_next_state: self.select_next_state.clone(),
10906 select_prev_state: self.select_prev_state.clone(),
10907 add_selections_state: self.add_selections_state.clone(),
10908 });
10909 }
10910
10911 pub fn transact(
10912 &mut self,
10913 cx: &mut ViewContext<Self>,
10914 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10915 ) -> Option<TransactionId> {
10916 self.start_transaction_at(Instant::now(), cx);
10917 update(self, cx);
10918 self.end_transaction_at(Instant::now(), cx)
10919 }
10920
10921 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10922 self.end_selection(cx);
10923 if let Some(tx_id) = self
10924 .buffer
10925 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10926 {
10927 self.selection_history
10928 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10929 cx.emit(EditorEvent::TransactionBegun {
10930 transaction_id: tx_id,
10931 })
10932 }
10933 }
10934
10935 fn end_transaction_at(
10936 &mut self,
10937 now: Instant,
10938 cx: &mut ViewContext<Self>,
10939 ) -> Option<TransactionId> {
10940 if let Some(transaction_id) = self
10941 .buffer
10942 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10943 {
10944 if let Some((_, end_selections)) =
10945 self.selection_history.transaction_mut(transaction_id)
10946 {
10947 *end_selections = Some(self.selections.disjoint_anchors());
10948 } else {
10949 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10950 }
10951
10952 cx.emit(EditorEvent::Edited { transaction_id });
10953 Some(transaction_id)
10954 } else {
10955 None
10956 }
10957 }
10958
10959 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10960 let selection = self.selections.newest::<Point>(cx);
10961
10962 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10963 let range = if selection.is_empty() {
10964 let point = selection.head().to_display_point(&display_map);
10965 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10966 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10967 .to_point(&display_map);
10968 start..end
10969 } else {
10970 selection.range()
10971 };
10972 if display_map.folds_in_range(range).next().is_some() {
10973 self.unfold_lines(&Default::default(), cx)
10974 } else {
10975 self.fold(&Default::default(), cx)
10976 }
10977 }
10978
10979 pub fn toggle_fold_recursive(
10980 &mut self,
10981 _: &actions::ToggleFoldRecursive,
10982 cx: &mut ViewContext<Self>,
10983 ) {
10984 let selection = self.selections.newest::<Point>(cx);
10985
10986 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10987 let range = if selection.is_empty() {
10988 let point = selection.head().to_display_point(&display_map);
10989 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10990 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10991 .to_point(&display_map);
10992 start..end
10993 } else {
10994 selection.range()
10995 };
10996 if display_map.folds_in_range(range).next().is_some() {
10997 self.unfold_recursive(&Default::default(), cx)
10998 } else {
10999 self.fold_recursive(&Default::default(), cx)
11000 }
11001 }
11002
11003 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
11004 let mut to_fold = Vec::new();
11005 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11006 let selections = self.selections.all_adjusted(cx);
11007
11008 for selection in selections {
11009 let range = selection.range().sorted();
11010 let buffer_start_row = range.start.row;
11011
11012 if range.start.row != range.end.row {
11013 let mut found = false;
11014 let mut row = range.start.row;
11015 while row <= range.end.row {
11016 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11017 found = true;
11018 row = crease.range().end.row + 1;
11019 to_fold.push(crease);
11020 } else {
11021 row += 1
11022 }
11023 }
11024 if found {
11025 continue;
11026 }
11027 }
11028
11029 for row in (0..=range.start.row).rev() {
11030 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11031 if crease.range().end.row >= buffer_start_row {
11032 to_fold.push(crease);
11033 if row <= range.start.row {
11034 break;
11035 }
11036 }
11037 }
11038 }
11039 }
11040
11041 self.fold_creases(to_fold, true, cx);
11042 }
11043
11044 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
11045 if !self.buffer.read(cx).is_singleton() {
11046 return;
11047 }
11048
11049 let fold_at_level = fold_at.level;
11050 let snapshot = self.buffer.read(cx).snapshot(cx);
11051 let mut to_fold = Vec::new();
11052 let mut stack = vec![(0, snapshot.max_row().0, 1)];
11053
11054 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
11055 while start_row < end_row {
11056 match self
11057 .snapshot(cx)
11058 .crease_for_buffer_row(MultiBufferRow(start_row))
11059 {
11060 Some(crease) => {
11061 let nested_start_row = crease.range().start.row + 1;
11062 let nested_end_row = crease.range().end.row;
11063
11064 if current_level < fold_at_level {
11065 stack.push((nested_start_row, nested_end_row, current_level + 1));
11066 } else if current_level == fold_at_level {
11067 to_fold.push(crease);
11068 }
11069
11070 start_row = nested_end_row + 1;
11071 }
11072 None => start_row += 1,
11073 }
11074 }
11075 }
11076
11077 self.fold_creases(to_fold, true, cx);
11078 }
11079
11080 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
11081 if !self.buffer.read(cx).is_singleton() {
11082 return;
11083 }
11084
11085 let mut fold_ranges = Vec::new();
11086 let snapshot = self.buffer.read(cx).snapshot(cx);
11087
11088 for row in 0..snapshot.max_row().0 {
11089 if let Some(foldable_range) =
11090 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
11091 {
11092 fold_ranges.push(foldable_range);
11093 }
11094 }
11095
11096 self.fold_creases(fold_ranges, true, cx);
11097 }
11098
11099 pub fn fold_function_bodies(
11100 &mut self,
11101 _: &actions::FoldFunctionBodies,
11102 cx: &mut ViewContext<Self>,
11103 ) {
11104 let snapshot = self.buffer.read(cx).snapshot(cx);
11105 let Some((_, _, buffer)) = snapshot.as_singleton() else {
11106 return;
11107 };
11108 let creases = buffer
11109 .function_body_fold_ranges(0..buffer.len())
11110 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
11111 .collect();
11112
11113 self.fold_creases(creases, true, cx);
11114 }
11115
11116 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
11117 let mut to_fold = Vec::new();
11118 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11119 let selections = self.selections.all_adjusted(cx);
11120
11121 for selection in selections {
11122 let range = selection.range().sorted();
11123 let buffer_start_row = range.start.row;
11124
11125 if range.start.row != range.end.row {
11126 let mut found = false;
11127 for row in range.start.row..=range.end.row {
11128 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11129 found = true;
11130 to_fold.push(crease);
11131 }
11132 }
11133 if found {
11134 continue;
11135 }
11136 }
11137
11138 for row in (0..=range.start.row).rev() {
11139 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11140 if crease.range().end.row >= buffer_start_row {
11141 to_fold.push(crease);
11142 } else {
11143 break;
11144 }
11145 }
11146 }
11147 }
11148
11149 self.fold_creases(to_fold, true, cx);
11150 }
11151
11152 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
11153 let buffer_row = fold_at.buffer_row;
11154 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11155
11156 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
11157 let autoscroll = self
11158 .selections
11159 .all::<Point>(cx)
11160 .iter()
11161 .any(|selection| crease.range().overlaps(&selection.range()));
11162
11163 self.fold_creases(vec![crease], autoscroll, cx);
11164 }
11165 }
11166
11167 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
11168 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11169 let buffer = &display_map.buffer_snapshot;
11170 let selections = self.selections.all::<Point>(cx);
11171 let ranges = selections
11172 .iter()
11173 .map(|s| {
11174 let range = s.display_range(&display_map).sorted();
11175 let mut start = range.start.to_point(&display_map);
11176 let mut end = range.end.to_point(&display_map);
11177 start.column = 0;
11178 end.column = buffer.line_len(MultiBufferRow(end.row));
11179 start..end
11180 })
11181 .collect::<Vec<_>>();
11182
11183 self.unfold_ranges(&ranges, true, true, cx);
11184 }
11185
11186 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
11187 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11188 let selections = self.selections.all::<Point>(cx);
11189 let ranges = selections
11190 .iter()
11191 .map(|s| {
11192 let mut range = s.display_range(&display_map).sorted();
11193 *range.start.column_mut() = 0;
11194 *range.end.column_mut() = display_map.line_len(range.end.row());
11195 let start = range.start.to_point(&display_map);
11196 let end = range.end.to_point(&display_map);
11197 start..end
11198 })
11199 .collect::<Vec<_>>();
11200
11201 self.unfold_ranges(&ranges, true, true, cx);
11202 }
11203
11204 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
11205 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11206
11207 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
11208 ..Point::new(
11209 unfold_at.buffer_row.0,
11210 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
11211 );
11212
11213 let autoscroll = self
11214 .selections
11215 .all::<Point>(cx)
11216 .iter()
11217 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
11218
11219 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
11220 }
11221
11222 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11223 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11224 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
11225 }
11226
11227 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11228 let selections = self.selections.all::<Point>(cx);
11229 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11230 let line_mode = self.selections.line_mode;
11231 let ranges = selections
11232 .into_iter()
11233 .map(|s| {
11234 if line_mode {
11235 let start = Point::new(s.start.row, 0);
11236 let end = Point::new(
11237 s.end.row,
11238 display_map
11239 .buffer_snapshot
11240 .line_len(MultiBufferRow(s.end.row)),
11241 );
11242 Crease::simple(start..end, display_map.fold_placeholder.clone())
11243 } else {
11244 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
11245 }
11246 })
11247 .collect::<Vec<_>>();
11248 self.fold_creases(ranges, true, cx);
11249 }
11250
11251 pub fn fold_creases<T: ToOffset + Clone>(
11252 &mut self,
11253 creases: Vec<Crease<T>>,
11254 auto_scroll: bool,
11255 cx: &mut ViewContext<Self>,
11256 ) {
11257 if creases.is_empty() {
11258 return;
11259 }
11260
11261 let mut buffers_affected = HashMap::default();
11262 let multi_buffer = self.buffer().read(cx);
11263 for crease in &creases {
11264 if let Some((_, buffer, _)) =
11265 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
11266 {
11267 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11268 };
11269 }
11270
11271 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
11272
11273 if auto_scroll {
11274 self.request_autoscroll(Autoscroll::fit(), cx);
11275 }
11276
11277 for buffer in buffers_affected.into_values() {
11278 self.sync_expanded_diff_hunks(buffer, cx);
11279 }
11280
11281 cx.notify();
11282
11283 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11284 // Clear diagnostics block when folding a range that contains it.
11285 let snapshot = self.snapshot(cx);
11286 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11287 drop(snapshot);
11288 self.active_diagnostics = Some(active_diagnostics);
11289 self.dismiss_diagnostics(cx);
11290 } else {
11291 self.active_diagnostics = Some(active_diagnostics);
11292 }
11293 }
11294
11295 self.scrollbar_marker_state.dirty = true;
11296 }
11297
11298 /// Removes any folds whose ranges intersect any of the given ranges.
11299 pub fn unfold_ranges<T: ToOffset + Clone>(
11300 &mut self,
11301 ranges: &[Range<T>],
11302 inclusive: bool,
11303 auto_scroll: bool,
11304 cx: &mut ViewContext<Self>,
11305 ) {
11306 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11307 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
11308 });
11309 }
11310
11311 /// Removes any folds with the given ranges.
11312 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11313 &mut self,
11314 ranges: &[Range<T>],
11315 type_id: TypeId,
11316 auto_scroll: bool,
11317 cx: &mut ViewContext<Self>,
11318 ) {
11319 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11320 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11321 });
11322 }
11323
11324 fn remove_folds_with<T: ToOffset + Clone>(
11325 &mut self,
11326 ranges: &[Range<T>],
11327 auto_scroll: bool,
11328 cx: &mut ViewContext<Self>,
11329 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11330 ) {
11331 if ranges.is_empty() {
11332 return;
11333 }
11334
11335 let mut buffers_affected = HashMap::default();
11336 let multi_buffer = self.buffer().read(cx);
11337 for range in ranges {
11338 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11339 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11340 };
11341 }
11342
11343 self.display_map.update(cx, update);
11344
11345 if auto_scroll {
11346 self.request_autoscroll(Autoscroll::fit(), cx);
11347 }
11348
11349 for buffer in buffers_affected.into_values() {
11350 self.sync_expanded_diff_hunks(buffer, cx);
11351 }
11352
11353 cx.notify();
11354 self.scrollbar_marker_state.dirty = true;
11355 self.active_indent_guides_state.dirty = true;
11356 }
11357
11358 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11359 self.display_map.read(cx).fold_placeholder.clone()
11360 }
11361
11362 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11363 if hovered != self.gutter_hovered {
11364 self.gutter_hovered = hovered;
11365 cx.notify();
11366 }
11367 }
11368
11369 pub fn insert_blocks(
11370 &mut self,
11371 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11372 autoscroll: Option<Autoscroll>,
11373 cx: &mut ViewContext<Self>,
11374 ) -> Vec<CustomBlockId> {
11375 let blocks = self
11376 .display_map
11377 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11378 if let Some(autoscroll) = autoscroll {
11379 self.request_autoscroll(autoscroll, cx);
11380 }
11381 cx.notify();
11382 blocks
11383 }
11384
11385 pub fn resize_blocks(
11386 &mut self,
11387 heights: HashMap<CustomBlockId, u32>,
11388 autoscroll: Option<Autoscroll>,
11389 cx: &mut ViewContext<Self>,
11390 ) {
11391 self.display_map
11392 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11393 if let Some(autoscroll) = autoscroll {
11394 self.request_autoscroll(autoscroll, cx);
11395 }
11396 cx.notify();
11397 }
11398
11399 pub fn replace_blocks(
11400 &mut self,
11401 renderers: HashMap<CustomBlockId, RenderBlock>,
11402 autoscroll: Option<Autoscroll>,
11403 cx: &mut ViewContext<Self>,
11404 ) {
11405 self.display_map
11406 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11407 if let Some(autoscroll) = autoscroll {
11408 self.request_autoscroll(autoscroll, cx);
11409 }
11410 cx.notify();
11411 }
11412
11413 pub fn remove_blocks(
11414 &mut self,
11415 block_ids: HashSet<CustomBlockId>,
11416 autoscroll: Option<Autoscroll>,
11417 cx: &mut ViewContext<Self>,
11418 ) {
11419 self.display_map.update(cx, |display_map, cx| {
11420 display_map.remove_blocks(block_ids, cx)
11421 });
11422 if let Some(autoscroll) = autoscroll {
11423 self.request_autoscroll(autoscroll, cx);
11424 }
11425 cx.notify();
11426 }
11427
11428 pub fn row_for_block(
11429 &self,
11430 block_id: CustomBlockId,
11431 cx: &mut ViewContext<Self>,
11432 ) -> Option<DisplayRow> {
11433 self.display_map
11434 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11435 }
11436
11437 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11438 self.focused_block = Some(focused_block);
11439 }
11440
11441 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11442 self.focused_block.take()
11443 }
11444
11445 pub fn insert_creases(
11446 &mut self,
11447 creases: impl IntoIterator<Item = Crease<Anchor>>,
11448 cx: &mut ViewContext<Self>,
11449 ) -> Vec<CreaseId> {
11450 self.display_map
11451 .update(cx, |map, cx| map.insert_creases(creases, cx))
11452 }
11453
11454 pub fn remove_creases(
11455 &mut self,
11456 ids: impl IntoIterator<Item = CreaseId>,
11457 cx: &mut ViewContext<Self>,
11458 ) {
11459 self.display_map
11460 .update(cx, |map, cx| map.remove_creases(ids, cx));
11461 }
11462
11463 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11464 self.display_map
11465 .update(cx, |map, cx| map.snapshot(cx))
11466 .longest_row()
11467 }
11468
11469 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11470 self.display_map
11471 .update(cx, |map, cx| map.snapshot(cx))
11472 .max_point()
11473 }
11474
11475 pub fn text(&self, cx: &AppContext) -> String {
11476 self.buffer.read(cx).read(cx).text()
11477 }
11478
11479 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11480 let text = self.text(cx);
11481 let text = text.trim();
11482
11483 if text.is_empty() {
11484 return None;
11485 }
11486
11487 Some(text.to_string())
11488 }
11489
11490 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11491 self.transact(cx, |this, cx| {
11492 this.buffer
11493 .read(cx)
11494 .as_singleton()
11495 .expect("you can only call set_text on editors for singleton buffers")
11496 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11497 });
11498 }
11499
11500 pub fn display_text(&self, cx: &mut AppContext) -> String {
11501 self.display_map
11502 .update(cx, |map, cx| map.snapshot(cx))
11503 .text()
11504 }
11505
11506 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11507 let mut wrap_guides = smallvec::smallvec![];
11508
11509 if self.show_wrap_guides == Some(false) {
11510 return wrap_guides;
11511 }
11512
11513 let settings = self.buffer.read(cx).settings_at(0, cx);
11514 if settings.show_wrap_guides {
11515 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11516 wrap_guides.push((soft_wrap as usize, true));
11517 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11518 wrap_guides.push((soft_wrap as usize, true));
11519 }
11520 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11521 }
11522
11523 wrap_guides
11524 }
11525
11526 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11527 let settings = self.buffer.read(cx).settings_at(0, cx);
11528 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11529 match mode {
11530 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11531 SoftWrap::None
11532 }
11533 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11534 language_settings::SoftWrap::PreferredLineLength => {
11535 SoftWrap::Column(settings.preferred_line_length)
11536 }
11537 language_settings::SoftWrap::Bounded => {
11538 SoftWrap::Bounded(settings.preferred_line_length)
11539 }
11540 }
11541 }
11542
11543 pub fn set_soft_wrap_mode(
11544 &mut self,
11545 mode: language_settings::SoftWrap,
11546 cx: &mut ViewContext<Self>,
11547 ) {
11548 self.soft_wrap_mode_override = Some(mode);
11549 cx.notify();
11550 }
11551
11552 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11553 self.text_style_refinement = Some(style);
11554 }
11555
11556 /// called by the Element so we know what style we were most recently rendered with.
11557 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11558 let rem_size = cx.rem_size();
11559 self.display_map.update(cx, |map, cx| {
11560 map.set_font(
11561 style.text.font(),
11562 style.text.font_size.to_pixels(rem_size),
11563 cx,
11564 )
11565 });
11566 self.style = Some(style);
11567 }
11568
11569 pub fn style(&self) -> Option<&EditorStyle> {
11570 self.style.as_ref()
11571 }
11572
11573 // Called by the element. This method is not designed to be called outside of the editor
11574 // element's layout code because it does not notify when rewrapping is computed synchronously.
11575 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11576 self.display_map
11577 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11578 }
11579
11580 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11581 if self.soft_wrap_mode_override.is_some() {
11582 self.soft_wrap_mode_override.take();
11583 } else {
11584 let soft_wrap = match self.soft_wrap_mode(cx) {
11585 SoftWrap::GitDiff => return,
11586 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11587 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11588 language_settings::SoftWrap::None
11589 }
11590 };
11591 self.soft_wrap_mode_override = Some(soft_wrap);
11592 }
11593 cx.notify();
11594 }
11595
11596 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11597 let Some(workspace) = self.workspace() else {
11598 return;
11599 };
11600 let fs = workspace.read(cx).app_state().fs.clone();
11601 let current_show = TabBarSettings::get_global(cx).show;
11602 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11603 setting.show = Some(!current_show);
11604 });
11605 }
11606
11607 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11608 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11609 self.buffer
11610 .read(cx)
11611 .settings_at(0, cx)
11612 .indent_guides
11613 .enabled
11614 });
11615 self.show_indent_guides = Some(!currently_enabled);
11616 cx.notify();
11617 }
11618
11619 fn should_show_indent_guides(&self) -> Option<bool> {
11620 self.show_indent_guides
11621 }
11622
11623 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11624 let mut editor_settings = EditorSettings::get_global(cx).clone();
11625 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11626 EditorSettings::override_global(editor_settings, cx);
11627 }
11628
11629 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11630 self.use_relative_line_numbers
11631 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11632 }
11633
11634 pub fn toggle_relative_line_numbers(
11635 &mut self,
11636 _: &ToggleRelativeLineNumbers,
11637 cx: &mut ViewContext<Self>,
11638 ) {
11639 let is_relative = self.should_use_relative_line_numbers(cx);
11640 self.set_relative_line_number(Some(!is_relative), cx)
11641 }
11642
11643 pub fn set_relative_line_number(
11644 &mut self,
11645 is_relative: Option<bool>,
11646 cx: &mut ViewContext<Self>,
11647 ) {
11648 self.use_relative_line_numbers = is_relative;
11649 cx.notify();
11650 }
11651
11652 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11653 self.show_gutter = show_gutter;
11654 cx.notify();
11655 }
11656
11657 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11658 self.show_line_numbers = Some(show_line_numbers);
11659 cx.notify();
11660 }
11661
11662 pub fn set_show_git_diff_gutter(
11663 &mut self,
11664 show_git_diff_gutter: bool,
11665 cx: &mut ViewContext<Self>,
11666 ) {
11667 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11668 cx.notify();
11669 }
11670
11671 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11672 self.show_code_actions = Some(show_code_actions);
11673 cx.notify();
11674 }
11675
11676 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11677 self.show_runnables = Some(show_runnables);
11678 cx.notify();
11679 }
11680
11681 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11682 if self.display_map.read(cx).masked != masked {
11683 self.display_map.update(cx, |map, _| map.masked = masked);
11684 }
11685 cx.notify()
11686 }
11687
11688 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11689 self.show_wrap_guides = Some(show_wrap_guides);
11690 cx.notify();
11691 }
11692
11693 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11694 self.show_indent_guides = Some(show_indent_guides);
11695 cx.notify();
11696 }
11697
11698 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11699 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11700 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11701 if let Some(dir) = file.abs_path(cx).parent() {
11702 return Some(dir.to_owned());
11703 }
11704 }
11705
11706 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11707 return Some(project_path.path.to_path_buf());
11708 }
11709 }
11710
11711 None
11712 }
11713
11714 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11715 self.active_excerpt(cx)?
11716 .1
11717 .read(cx)
11718 .file()
11719 .and_then(|f| f.as_local())
11720 }
11721
11722 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11723 if let Some(target) = self.target_file(cx) {
11724 cx.reveal_path(&target.abs_path(cx));
11725 }
11726 }
11727
11728 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11729 if let Some(file) = self.target_file(cx) {
11730 if let Some(path) = file.abs_path(cx).to_str() {
11731 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11732 }
11733 }
11734 }
11735
11736 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11737 if let Some(file) = self.target_file(cx) {
11738 if let Some(path) = file.path().to_str() {
11739 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11740 }
11741 }
11742 }
11743
11744 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11745 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11746
11747 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11748 self.start_git_blame(true, cx);
11749 }
11750
11751 cx.notify();
11752 }
11753
11754 pub fn toggle_git_blame_inline(
11755 &mut self,
11756 _: &ToggleGitBlameInline,
11757 cx: &mut ViewContext<Self>,
11758 ) {
11759 self.toggle_git_blame_inline_internal(true, cx);
11760 cx.notify();
11761 }
11762
11763 pub fn git_blame_inline_enabled(&self) -> bool {
11764 self.git_blame_inline_enabled
11765 }
11766
11767 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11768 self.show_selection_menu = self
11769 .show_selection_menu
11770 .map(|show_selections_menu| !show_selections_menu)
11771 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11772
11773 cx.notify();
11774 }
11775
11776 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11777 self.show_selection_menu
11778 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11779 }
11780
11781 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11782 if let Some(project) = self.project.as_ref() {
11783 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11784 return;
11785 };
11786
11787 if buffer.read(cx).file().is_none() {
11788 return;
11789 }
11790
11791 let focused = self.focus_handle(cx).contains_focused(cx);
11792
11793 let project = project.clone();
11794 let blame =
11795 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11796 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11797 self.blame = Some(blame);
11798 }
11799 }
11800
11801 fn toggle_git_blame_inline_internal(
11802 &mut self,
11803 user_triggered: bool,
11804 cx: &mut ViewContext<Self>,
11805 ) {
11806 if self.git_blame_inline_enabled {
11807 self.git_blame_inline_enabled = false;
11808 self.show_git_blame_inline = false;
11809 self.show_git_blame_inline_delay_task.take();
11810 } else {
11811 self.git_blame_inline_enabled = true;
11812 self.start_git_blame_inline(user_triggered, cx);
11813 }
11814
11815 cx.notify();
11816 }
11817
11818 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11819 self.start_git_blame(user_triggered, cx);
11820
11821 if ProjectSettings::get_global(cx)
11822 .git
11823 .inline_blame_delay()
11824 .is_some()
11825 {
11826 self.start_inline_blame_timer(cx);
11827 } else {
11828 self.show_git_blame_inline = true
11829 }
11830 }
11831
11832 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11833 self.blame.as_ref()
11834 }
11835
11836 pub fn show_git_blame_gutter(&self) -> bool {
11837 self.show_git_blame_gutter
11838 }
11839
11840 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11841 self.show_git_blame_gutter && self.has_blame_entries(cx)
11842 }
11843
11844 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11845 self.show_git_blame_inline
11846 && self.focus_handle.is_focused(cx)
11847 && !self.newest_selection_head_on_empty_line(cx)
11848 && self.has_blame_entries(cx)
11849 }
11850
11851 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11852 self.blame()
11853 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11854 }
11855
11856 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11857 let cursor_anchor = self.selections.newest_anchor().head();
11858
11859 let snapshot = self.buffer.read(cx).snapshot(cx);
11860 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11861
11862 snapshot.line_len(buffer_row) == 0
11863 }
11864
11865 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11866 let buffer_and_selection = maybe!({
11867 let selection = self.selections.newest::<Point>(cx);
11868 let selection_range = selection.range();
11869
11870 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11871 (buffer, selection_range.start.row..selection_range.end.row)
11872 } else {
11873 let buffer_ranges = self
11874 .buffer()
11875 .read(cx)
11876 .range_to_buffer_ranges(selection_range, cx);
11877
11878 let (buffer, range, _) = if selection.reversed {
11879 buffer_ranges.first()
11880 } else {
11881 buffer_ranges.last()
11882 }?;
11883
11884 let snapshot = buffer.read(cx).snapshot();
11885 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11886 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11887 (buffer.clone(), selection)
11888 };
11889
11890 Some((buffer, selection))
11891 });
11892
11893 let Some((buffer, selection)) = buffer_and_selection else {
11894 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11895 };
11896
11897 let Some(project) = self.project.as_ref() else {
11898 return Task::ready(Err(anyhow!("editor does not have project")));
11899 };
11900
11901 project.update(cx, |project, cx| {
11902 project.get_permalink_to_line(&buffer, selection, cx)
11903 })
11904 }
11905
11906 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11907 let permalink_task = self.get_permalink_to_line(cx);
11908 let workspace = self.workspace();
11909
11910 cx.spawn(|_, mut cx| async move {
11911 match permalink_task.await {
11912 Ok(permalink) => {
11913 cx.update(|cx| {
11914 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11915 })
11916 .ok();
11917 }
11918 Err(err) => {
11919 let message = format!("Failed to copy permalink: {err}");
11920
11921 Err::<(), anyhow::Error>(err).log_err();
11922
11923 if let Some(workspace) = workspace {
11924 workspace
11925 .update(&mut cx, |workspace, cx| {
11926 struct CopyPermalinkToLine;
11927
11928 workspace.show_toast(
11929 Toast::new(
11930 NotificationId::unique::<CopyPermalinkToLine>(),
11931 message,
11932 ),
11933 cx,
11934 )
11935 })
11936 .ok();
11937 }
11938 }
11939 }
11940 })
11941 .detach();
11942 }
11943
11944 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11945 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11946 if let Some(file) = self.target_file(cx) {
11947 if let Some(path) = file.path().to_str() {
11948 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11949 }
11950 }
11951 }
11952
11953 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11954 let permalink_task = self.get_permalink_to_line(cx);
11955 let workspace = self.workspace();
11956
11957 cx.spawn(|_, mut cx| async move {
11958 match permalink_task.await {
11959 Ok(permalink) => {
11960 cx.update(|cx| {
11961 cx.open_url(permalink.as_ref());
11962 })
11963 .ok();
11964 }
11965 Err(err) => {
11966 let message = format!("Failed to open permalink: {err}");
11967
11968 Err::<(), anyhow::Error>(err).log_err();
11969
11970 if let Some(workspace) = workspace {
11971 workspace
11972 .update(&mut cx, |workspace, cx| {
11973 struct OpenPermalinkToLine;
11974
11975 workspace.show_toast(
11976 Toast::new(
11977 NotificationId::unique::<OpenPermalinkToLine>(),
11978 message,
11979 ),
11980 cx,
11981 )
11982 })
11983 .ok();
11984 }
11985 }
11986 }
11987 })
11988 .detach();
11989 }
11990
11991 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11992 /// last highlight added will be used.
11993 ///
11994 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11995 pub fn highlight_rows<T: 'static>(
11996 &mut self,
11997 range: Range<Anchor>,
11998 color: Hsla,
11999 should_autoscroll: bool,
12000 cx: &mut ViewContext<Self>,
12001 ) {
12002 let snapshot = self.buffer().read(cx).snapshot(cx);
12003 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12004 let ix = row_highlights.binary_search_by(|highlight| {
12005 Ordering::Equal
12006 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
12007 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
12008 });
12009
12010 if let Err(mut ix) = ix {
12011 let index = post_inc(&mut self.highlight_order);
12012
12013 // If this range intersects with the preceding highlight, then merge it with
12014 // the preceding highlight. Otherwise insert a new highlight.
12015 let mut merged = false;
12016 if ix > 0 {
12017 let prev_highlight = &mut row_highlights[ix - 1];
12018 if prev_highlight
12019 .range
12020 .end
12021 .cmp(&range.start, &snapshot)
12022 .is_ge()
12023 {
12024 ix -= 1;
12025 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
12026 prev_highlight.range.end = range.end;
12027 }
12028 merged = true;
12029 prev_highlight.index = index;
12030 prev_highlight.color = color;
12031 prev_highlight.should_autoscroll = should_autoscroll;
12032 }
12033 }
12034
12035 if !merged {
12036 row_highlights.insert(
12037 ix,
12038 RowHighlight {
12039 range: range.clone(),
12040 index,
12041 color,
12042 should_autoscroll,
12043 },
12044 );
12045 }
12046
12047 // If any of the following highlights intersect with this one, merge them.
12048 while let Some(next_highlight) = row_highlights.get(ix + 1) {
12049 let highlight = &row_highlights[ix];
12050 if next_highlight
12051 .range
12052 .start
12053 .cmp(&highlight.range.end, &snapshot)
12054 .is_le()
12055 {
12056 if next_highlight
12057 .range
12058 .end
12059 .cmp(&highlight.range.end, &snapshot)
12060 .is_gt()
12061 {
12062 row_highlights[ix].range.end = next_highlight.range.end;
12063 }
12064 row_highlights.remove(ix + 1);
12065 } else {
12066 break;
12067 }
12068 }
12069 }
12070 }
12071
12072 /// Remove any highlighted row ranges of the given type that intersect the
12073 /// given ranges.
12074 pub fn remove_highlighted_rows<T: 'static>(
12075 &mut self,
12076 ranges_to_remove: Vec<Range<Anchor>>,
12077 cx: &mut ViewContext<Self>,
12078 ) {
12079 let snapshot = self.buffer().read(cx).snapshot(cx);
12080 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12081 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
12082 row_highlights.retain(|highlight| {
12083 while let Some(range_to_remove) = ranges_to_remove.peek() {
12084 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
12085 Ordering::Less | Ordering::Equal => {
12086 ranges_to_remove.next();
12087 }
12088 Ordering::Greater => {
12089 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
12090 Ordering::Less | Ordering::Equal => {
12091 return false;
12092 }
12093 Ordering::Greater => break,
12094 }
12095 }
12096 }
12097 }
12098
12099 true
12100 })
12101 }
12102
12103 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
12104 pub fn clear_row_highlights<T: 'static>(&mut self) {
12105 self.highlighted_rows.remove(&TypeId::of::<T>());
12106 }
12107
12108 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
12109 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
12110 self.highlighted_rows
12111 .get(&TypeId::of::<T>())
12112 .map_or(&[] as &[_], |vec| vec.as_slice())
12113 .iter()
12114 .map(|highlight| (highlight.range.clone(), highlight.color))
12115 }
12116
12117 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
12118 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
12119 /// Allows to ignore certain kinds of highlights.
12120 pub fn highlighted_display_rows(
12121 &mut self,
12122 cx: &mut WindowContext,
12123 ) -> BTreeMap<DisplayRow, Hsla> {
12124 let snapshot = self.snapshot(cx);
12125 let mut used_highlight_orders = HashMap::default();
12126 self.highlighted_rows
12127 .iter()
12128 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
12129 .fold(
12130 BTreeMap::<DisplayRow, Hsla>::new(),
12131 |mut unique_rows, highlight| {
12132 let start = highlight.range.start.to_display_point(&snapshot);
12133 let end = highlight.range.end.to_display_point(&snapshot);
12134 let start_row = start.row().0;
12135 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
12136 && end.column() == 0
12137 {
12138 end.row().0.saturating_sub(1)
12139 } else {
12140 end.row().0
12141 };
12142 for row in start_row..=end_row {
12143 let used_index =
12144 used_highlight_orders.entry(row).or_insert(highlight.index);
12145 if highlight.index >= *used_index {
12146 *used_index = highlight.index;
12147 unique_rows.insert(DisplayRow(row), highlight.color);
12148 }
12149 }
12150 unique_rows
12151 },
12152 )
12153 }
12154
12155 pub fn highlighted_display_row_for_autoscroll(
12156 &self,
12157 snapshot: &DisplaySnapshot,
12158 ) -> Option<DisplayRow> {
12159 self.highlighted_rows
12160 .values()
12161 .flat_map(|highlighted_rows| highlighted_rows.iter())
12162 .filter_map(|highlight| {
12163 if highlight.should_autoscroll {
12164 Some(highlight.range.start.to_display_point(snapshot).row())
12165 } else {
12166 None
12167 }
12168 })
12169 .min()
12170 }
12171
12172 pub fn set_search_within_ranges(
12173 &mut self,
12174 ranges: &[Range<Anchor>],
12175 cx: &mut ViewContext<Self>,
12176 ) {
12177 self.highlight_background::<SearchWithinRange>(
12178 ranges,
12179 |colors| colors.editor_document_highlight_read_background,
12180 cx,
12181 )
12182 }
12183
12184 pub fn set_breadcrumb_header(&mut self, new_header: String) {
12185 self.breadcrumb_header = Some(new_header);
12186 }
12187
12188 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12189 self.clear_background_highlights::<SearchWithinRange>(cx);
12190 }
12191
12192 pub fn highlight_background<T: 'static>(
12193 &mut self,
12194 ranges: &[Range<Anchor>],
12195 color_fetcher: fn(&ThemeColors) -> Hsla,
12196 cx: &mut ViewContext<Self>,
12197 ) {
12198 self.background_highlights
12199 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12200 self.scrollbar_marker_state.dirty = true;
12201 cx.notify();
12202 }
12203
12204 pub fn clear_background_highlights<T: 'static>(
12205 &mut self,
12206 cx: &mut ViewContext<Self>,
12207 ) -> Option<BackgroundHighlight> {
12208 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12209 if !text_highlights.1.is_empty() {
12210 self.scrollbar_marker_state.dirty = true;
12211 cx.notify();
12212 }
12213 Some(text_highlights)
12214 }
12215
12216 pub fn highlight_gutter<T: 'static>(
12217 &mut self,
12218 ranges: &[Range<Anchor>],
12219 color_fetcher: fn(&AppContext) -> Hsla,
12220 cx: &mut ViewContext<Self>,
12221 ) {
12222 self.gutter_highlights
12223 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12224 cx.notify();
12225 }
12226
12227 pub fn clear_gutter_highlights<T: 'static>(
12228 &mut self,
12229 cx: &mut ViewContext<Self>,
12230 ) -> Option<GutterHighlight> {
12231 cx.notify();
12232 self.gutter_highlights.remove(&TypeId::of::<T>())
12233 }
12234
12235 #[cfg(feature = "test-support")]
12236 pub fn all_text_background_highlights(
12237 &mut self,
12238 cx: &mut ViewContext<Self>,
12239 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12240 let snapshot = self.snapshot(cx);
12241 let buffer = &snapshot.buffer_snapshot;
12242 let start = buffer.anchor_before(0);
12243 let end = buffer.anchor_after(buffer.len());
12244 let theme = cx.theme().colors();
12245 self.background_highlights_in_range(start..end, &snapshot, theme)
12246 }
12247
12248 #[cfg(feature = "test-support")]
12249 pub fn search_background_highlights(
12250 &mut self,
12251 cx: &mut ViewContext<Self>,
12252 ) -> Vec<Range<Point>> {
12253 let snapshot = self.buffer().read(cx).snapshot(cx);
12254
12255 let highlights = self
12256 .background_highlights
12257 .get(&TypeId::of::<items::BufferSearchHighlights>());
12258
12259 if let Some((_color, ranges)) = highlights {
12260 ranges
12261 .iter()
12262 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12263 .collect_vec()
12264 } else {
12265 vec![]
12266 }
12267 }
12268
12269 fn document_highlights_for_position<'a>(
12270 &'a self,
12271 position: Anchor,
12272 buffer: &'a MultiBufferSnapshot,
12273 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12274 let read_highlights = self
12275 .background_highlights
12276 .get(&TypeId::of::<DocumentHighlightRead>())
12277 .map(|h| &h.1);
12278 let write_highlights = self
12279 .background_highlights
12280 .get(&TypeId::of::<DocumentHighlightWrite>())
12281 .map(|h| &h.1);
12282 let left_position = position.bias_left(buffer);
12283 let right_position = position.bias_right(buffer);
12284 read_highlights
12285 .into_iter()
12286 .chain(write_highlights)
12287 .flat_map(move |ranges| {
12288 let start_ix = match ranges.binary_search_by(|probe| {
12289 let cmp = probe.end.cmp(&left_position, buffer);
12290 if cmp.is_ge() {
12291 Ordering::Greater
12292 } else {
12293 Ordering::Less
12294 }
12295 }) {
12296 Ok(i) | Err(i) => i,
12297 };
12298
12299 ranges[start_ix..]
12300 .iter()
12301 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12302 })
12303 }
12304
12305 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12306 self.background_highlights
12307 .get(&TypeId::of::<T>())
12308 .map_or(false, |(_, highlights)| !highlights.is_empty())
12309 }
12310
12311 pub fn background_highlights_in_range(
12312 &self,
12313 search_range: Range<Anchor>,
12314 display_snapshot: &DisplaySnapshot,
12315 theme: &ThemeColors,
12316 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12317 let mut results = Vec::new();
12318 for (color_fetcher, ranges) in self.background_highlights.values() {
12319 let color = color_fetcher(theme);
12320 let start_ix = match ranges.binary_search_by(|probe| {
12321 let cmp = probe
12322 .end
12323 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12324 if cmp.is_gt() {
12325 Ordering::Greater
12326 } else {
12327 Ordering::Less
12328 }
12329 }) {
12330 Ok(i) | Err(i) => i,
12331 };
12332 for range in &ranges[start_ix..] {
12333 if range
12334 .start
12335 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12336 .is_ge()
12337 {
12338 break;
12339 }
12340
12341 let start = range.start.to_display_point(display_snapshot);
12342 let end = range.end.to_display_point(display_snapshot);
12343 results.push((start..end, color))
12344 }
12345 }
12346 results
12347 }
12348
12349 pub fn background_highlight_row_ranges<T: 'static>(
12350 &self,
12351 search_range: Range<Anchor>,
12352 display_snapshot: &DisplaySnapshot,
12353 count: usize,
12354 ) -> Vec<RangeInclusive<DisplayPoint>> {
12355 let mut results = Vec::new();
12356 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12357 return vec![];
12358 };
12359
12360 let start_ix = match ranges.binary_search_by(|probe| {
12361 let cmp = probe
12362 .end
12363 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12364 if cmp.is_gt() {
12365 Ordering::Greater
12366 } else {
12367 Ordering::Less
12368 }
12369 }) {
12370 Ok(i) | Err(i) => i,
12371 };
12372 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12373 if let (Some(start_display), Some(end_display)) = (start, end) {
12374 results.push(
12375 start_display.to_display_point(display_snapshot)
12376 ..=end_display.to_display_point(display_snapshot),
12377 );
12378 }
12379 };
12380 let mut start_row: Option<Point> = None;
12381 let mut end_row: Option<Point> = None;
12382 if ranges.len() > count {
12383 return Vec::new();
12384 }
12385 for range in &ranges[start_ix..] {
12386 if range
12387 .start
12388 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12389 .is_ge()
12390 {
12391 break;
12392 }
12393 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12394 if let Some(current_row) = &end_row {
12395 if end.row == current_row.row {
12396 continue;
12397 }
12398 }
12399 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12400 if start_row.is_none() {
12401 assert_eq!(end_row, None);
12402 start_row = Some(start);
12403 end_row = Some(end);
12404 continue;
12405 }
12406 if let Some(current_end) = end_row.as_mut() {
12407 if start.row > current_end.row + 1 {
12408 push_region(start_row, end_row);
12409 start_row = Some(start);
12410 end_row = Some(end);
12411 } else {
12412 // Merge two hunks.
12413 *current_end = end;
12414 }
12415 } else {
12416 unreachable!();
12417 }
12418 }
12419 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12420 push_region(start_row, end_row);
12421 results
12422 }
12423
12424 pub fn gutter_highlights_in_range(
12425 &self,
12426 search_range: Range<Anchor>,
12427 display_snapshot: &DisplaySnapshot,
12428 cx: &AppContext,
12429 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12430 let mut results = Vec::new();
12431 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12432 let color = color_fetcher(cx);
12433 let start_ix = match ranges.binary_search_by(|probe| {
12434 let cmp = probe
12435 .end
12436 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12437 if cmp.is_gt() {
12438 Ordering::Greater
12439 } else {
12440 Ordering::Less
12441 }
12442 }) {
12443 Ok(i) | Err(i) => i,
12444 };
12445 for range in &ranges[start_ix..] {
12446 if range
12447 .start
12448 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12449 .is_ge()
12450 {
12451 break;
12452 }
12453
12454 let start = range.start.to_display_point(display_snapshot);
12455 let end = range.end.to_display_point(display_snapshot);
12456 results.push((start..end, color))
12457 }
12458 }
12459 results
12460 }
12461
12462 /// Get the text ranges corresponding to the redaction query
12463 pub fn redacted_ranges(
12464 &self,
12465 search_range: Range<Anchor>,
12466 display_snapshot: &DisplaySnapshot,
12467 cx: &WindowContext,
12468 ) -> Vec<Range<DisplayPoint>> {
12469 display_snapshot
12470 .buffer_snapshot
12471 .redacted_ranges(search_range, |file| {
12472 if let Some(file) = file {
12473 file.is_private()
12474 && EditorSettings::get(
12475 Some(SettingsLocation {
12476 worktree_id: file.worktree_id(cx),
12477 path: file.path().as_ref(),
12478 }),
12479 cx,
12480 )
12481 .redact_private_values
12482 } else {
12483 false
12484 }
12485 })
12486 .map(|range| {
12487 range.start.to_display_point(display_snapshot)
12488 ..range.end.to_display_point(display_snapshot)
12489 })
12490 .collect()
12491 }
12492
12493 pub fn highlight_text<T: 'static>(
12494 &mut self,
12495 ranges: Vec<Range<Anchor>>,
12496 style: HighlightStyle,
12497 cx: &mut ViewContext<Self>,
12498 ) {
12499 self.display_map.update(cx, |map, _| {
12500 map.highlight_text(TypeId::of::<T>(), ranges, style)
12501 });
12502 cx.notify();
12503 }
12504
12505 pub(crate) fn highlight_inlays<T: 'static>(
12506 &mut self,
12507 highlights: Vec<InlayHighlight>,
12508 style: HighlightStyle,
12509 cx: &mut ViewContext<Self>,
12510 ) {
12511 self.display_map.update(cx, |map, _| {
12512 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12513 });
12514 cx.notify();
12515 }
12516
12517 pub fn text_highlights<'a, T: 'static>(
12518 &'a self,
12519 cx: &'a AppContext,
12520 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12521 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12522 }
12523
12524 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12525 let cleared = self
12526 .display_map
12527 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12528 if cleared {
12529 cx.notify();
12530 }
12531 }
12532
12533 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12534 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12535 && self.focus_handle.is_focused(cx)
12536 }
12537
12538 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12539 self.show_cursor_when_unfocused = is_enabled;
12540 cx.notify();
12541 }
12542
12543 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12544 cx.notify();
12545 }
12546
12547 fn on_buffer_event(
12548 &mut self,
12549 multibuffer: Model<MultiBuffer>,
12550 event: &multi_buffer::Event,
12551 cx: &mut ViewContext<Self>,
12552 ) {
12553 match event {
12554 multi_buffer::Event::Edited {
12555 singleton_buffer_edited,
12556 } => {
12557 self.scrollbar_marker_state.dirty = true;
12558 self.active_indent_guides_state.dirty = true;
12559 self.refresh_active_diagnostics(cx);
12560 self.refresh_code_actions(cx);
12561 if self.has_active_inline_completion(cx) {
12562 self.update_visible_inline_completion(cx);
12563 }
12564 cx.emit(EditorEvent::BufferEdited);
12565 cx.emit(SearchEvent::MatchesInvalidated);
12566 if *singleton_buffer_edited {
12567 if let Some(project) = &self.project {
12568 let project = project.read(cx);
12569 #[allow(clippy::mutable_key_type)]
12570 let languages_affected = multibuffer
12571 .read(cx)
12572 .all_buffers()
12573 .into_iter()
12574 .filter_map(|buffer| {
12575 let buffer = buffer.read(cx);
12576 let language = buffer.language()?;
12577 if project.is_local()
12578 && project.language_servers_for_buffer(buffer, cx).count() == 0
12579 {
12580 None
12581 } else {
12582 Some(language)
12583 }
12584 })
12585 .cloned()
12586 .collect::<HashSet<_>>();
12587 if !languages_affected.is_empty() {
12588 self.refresh_inlay_hints(
12589 InlayHintRefreshReason::BufferEdited(languages_affected),
12590 cx,
12591 );
12592 }
12593 }
12594 }
12595
12596 let Some(project) = &self.project else { return };
12597 let (telemetry, is_via_ssh) = {
12598 let project = project.read(cx);
12599 let telemetry = project.client().telemetry().clone();
12600 let is_via_ssh = project.is_via_ssh();
12601 (telemetry, is_via_ssh)
12602 };
12603 refresh_linked_ranges(self, cx);
12604 telemetry.log_edit_event("editor", is_via_ssh);
12605 }
12606 multi_buffer::Event::ExcerptsAdded {
12607 buffer,
12608 predecessor,
12609 excerpts,
12610 } => {
12611 self.tasks_update_task = Some(self.refresh_runnables(cx));
12612 cx.emit(EditorEvent::ExcerptsAdded {
12613 buffer: buffer.clone(),
12614 predecessor: *predecessor,
12615 excerpts: excerpts.clone(),
12616 });
12617 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12618 }
12619 multi_buffer::Event::ExcerptsRemoved { ids } => {
12620 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12621 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12622 }
12623 multi_buffer::Event::ExcerptsEdited { ids } => {
12624 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12625 }
12626 multi_buffer::Event::ExcerptsExpanded { ids } => {
12627 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12628 }
12629 multi_buffer::Event::Reparsed(buffer_id) => {
12630 self.tasks_update_task = Some(self.refresh_runnables(cx));
12631
12632 cx.emit(EditorEvent::Reparsed(*buffer_id));
12633 }
12634 multi_buffer::Event::LanguageChanged(buffer_id) => {
12635 linked_editing_ranges::refresh_linked_ranges(self, cx);
12636 cx.emit(EditorEvent::Reparsed(*buffer_id));
12637 cx.notify();
12638 }
12639 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12640 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12641 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12642 cx.emit(EditorEvent::TitleChanged)
12643 }
12644 multi_buffer::Event::DiffBaseChanged => {
12645 self.scrollbar_marker_state.dirty = true;
12646 cx.emit(EditorEvent::DiffBaseChanged);
12647 cx.notify();
12648 }
12649 multi_buffer::Event::DiffUpdated { buffer } => {
12650 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12651 cx.notify();
12652 }
12653 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12654 multi_buffer::Event::DiagnosticsUpdated => {
12655 self.refresh_active_diagnostics(cx);
12656 self.scrollbar_marker_state.dirty = true;
12657 cx.notify();
12658 }
12659 _ => {}
12660 };
12661 }
12662
12663 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12664 cx.notify();
12665 }
12666
12667 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12668 self.tasks_update_task = Some(self.refresh_runnables(cx));
12669 self.refresh_inline_completion(true, false, cx);
12670 self.refresh_inlay_hints(
12671 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12672 self.selections.newest_anchor().head(),
12673 &self.buffer.read(cx).snapshot(cx),
12674 cx,
12675 )),
12676 cx,
12677 );
12678
12679 let old_cursor_shape = self.cursor_shape;
12680
12681 {
12682 let editor_settings = EditorSettings::get_global(cx);
12683 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12684 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12685 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12686 }
12687
12688 if old_cursor_shape != self.cursor_shape {
12689 cx.emit(EditorEvent::CursorShapeChanged);
12690 }
12691
12692 let project_settings = ProjectSettings::get_global(cx);
12693 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12694
12695 if self.mode == EditorMode::Full {
12696 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12697 if self.git_blame_inline_enabled != inline_blame_enabled {
12698 self.toggle_git_blame_inline_internal(false, cx);
12699 }
12700 }
12701
12702 cx.notify();
12703 }
12704
12705 pub fn set_searchable(&mut self, searchable: bool) {
12706 self.searchable = searchable;
12707 }
12708
12709 pub fn searchable(&self) -> bool {
12710 self.searchable
12711 }
12712
12713 fn open_proposed_changes_editor(
12714 &mut self,
12715 _: &OpenProposedChangesEditor,
12716 cx: &mut ViewContext<Self>,
12717 ) {
12718 let Some(workspace) = self.workspace() else {
12719 cx.propagate();
12720 return;
12721 };
12722
12723 let selections = self.selections.all::<usize>(cx);
12724 let buffer = self.buffer.read(cx);
12725 let mut new_selections_by_buffer = HashMap::default();
12726 for selection in selections {
12727 for (buffer, range, _) in
12728 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12729 {
12730 let mut range = range.to_point(buffer.read(cx));
12731 range.start.column = 0;
12732 range.end.column = buffer.read(cx).line_len(range.end.row);
12733 new_selections_by_buffer
12734 .entry(buffer)
12735 .or_insert(Vec::new())
12736 .push(range)
12737 }
12738 }
12739
12740 let proposed_changes_buffers = new_selections_by_buffer
12741 .into_iter()
12742 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12743 .collect::<Vec<_>>();
12744 let proposed_changes_editor = cx.new_view(|cx| {
12745 ProposedChangesEditor::new(
12746 "Proposed changes",
12747 proposed_changes_buffers,
12748 self.project.clone(),
12749 cx,
12750 )
12751 });
12752
12753 cx.window_context().defer(move |cx| {
12754 workspace.update(cx, |workspace, cx| {
12755 workspace.active_pane().update(cx, |pane, cx| {
12756 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12757 });
12758 });
12759 });
12760 }
12761
12762 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12763 self.open_excerpts_common(None, true, cx)
12764 }
12765
12766 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12767 self.open_excerpts_common(None, false, cx)
12768 }
12769
12770 fn open_excerpts_common(
12771 &mut self,
12772 jump_data: Option<JumpData>,
12773 split: bool,
12774 cx: &mut ViewContext<Self>,
12775 ) {
12776 let Some(workspace) = self.workspace() else {
12777 cx.propagate();
12778 return;
12779 };
12780
12781 if self.buffer.read(cx).is_singleton() {
12782 cx.propagate();
12783 return;
12784 }
12785
12786 let mut new_selections_by_buffer = HashMap::default();
12787 match &jump_data {
12788 Some(jump_data) => {
12789 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12790 if let Some(buffer) = multi_buffer_snapshot
12791 .buffer_id_for_excerpt(jump_data.excerpt_id)
12792 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12793 {
12794 let buffer_snapshot = buffer.read(cx).snapshot();
12795 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12796 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12797 } else {
12798 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12799 };
12800 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12801 new_selections_by_buffer.insert(
12802 buffer,
12803 (
12804 vec![jump_to_offset..jump_to_offset],
12805 Some(jump_data.line_offset_from_top),
12806 ),
12807 );
12808 }
12809 }
12810 None => {
12811 let selections = self.selections.all::<usize>(cx);
12812 let buffer = self.buffer.read(cx);
12813 for selection in selections {
12814 for (mut buffer_handle, mut range, _) in
12815 buffer.range_to_buffer_ranges(selection.range(), cx)
12816 {
12817 // When editing branch buffers, jump to the corresponding location
12818 // in their base buffer.
12819 let buffer = buffer_handle.read(cx);
12820 if let Some(base_buffer) = buffer.diff_base_buffer() {
12821 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12822 buffer_handle = base_buffer;
12823 }
12824
12825 if selection.reversed {
12826 mem::swap(&mut range.start, &mut range.end);
12827 }
12828 new_selections_by_buffer
12829 .entry(buffer_handle)
12830 .or_insert((Vec::new(), None))
12831 .0
12832 .push(range)
12833 }
12834 }
12835 }
12836 }
12837
12838 if new_selections_by_buffer.is_empty() {
12839 return;
12840 }
12841
12842 // We defer the pane interaction because we ourselves are a workspace item
12843 // and activating a new item causes the pane to call a method on us reentrantly,
12844 // which panics if we're on the stack.
12845 cx.window_context().defer(move |cx| {
12846 workspace.update(cx, |workspace, cx| {
12847 let pane = if split {
12848 workspace.adjacent_pane(cx)
12849 } else {
12850 workspace.active_pane().clone()
12851 };
12852
12853 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12854 let editor = buffer
12855 .read(cx)
12856 .file()
12857 .is_none()
12858 .then(|| {
12859 // Handle file-less buffers separately: those are not really the project items, so won't have a paroject path or entity id,
12860 // so `workspace.open_project_item` will never find them, always opening a new editor.
12861 // Instead, we try to activate the existing editor in the pane first.
12862 let (editor, pane_item_index) =
12863 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12864 let editor = item.downcast::<Editor>()?;
12865 let singleton_buffer =
12866 editor.read(cx).buffer().read(cx).as_singleton()?;
12867 if singleton_buffer == buffer {
12868 Some((editor, i))
12869 } else {
12870 None
12871 }
12872 })?;
12873 pane.update(cx, |pane, cx| {
12874 pane.activate_item(pane_item_index, true, true, cx)
12875 });
12876 Some(editor)
12877 })
12878 .flatten()
12879 .unwrap_or_else(|| {
12880 workspace.open_project_item::<Self>(
12881 pane.clone(),
12882 buffer,
12883 true,
12884 true,
12885 cx,
12886 )
12887 });
12888
12889 editor.update(cx, |editor, cx| {
12890 let autoscroll = match scroll_offset {
12891 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12892 None => Autoscroll::newest(),
12893 };
12894 let nav_history = editor.nav_history.take();
12895 editor.change_selections(Some(autoscroll), cx, |s| {
12896 s.select_ranges(ranges);
12897 });
12898 editor.nav_history = nav_history;
12899 });
12900 }
12901 })
12902 });
12903 }
12904
12905 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12906 let snapshot = self.buffer.read(cx).read(cx);
12907 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12908 Some(
12909 ranges
12910 .iter()
12911 .map(move |range| {
12912 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12913 })
12914 .collect(),
12915 )
12916 }
12917
12918 fn selection_replacement_ranges(
12919 &self,
12920 range: Range<OffsetUtf16>,
12921 cx: &mut AppContext,
12922 ) -> Vec<Range<OffsetUtf16>> {
12923 let selections = self.selections.all::<OffsetUtf16>(cx);
12924 let newest_selection = selections
12925 .iter()
12926 .max_by_key(|selection| selection.id)
12927 .unwrap();
12928 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12929 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12930 let snapshot = self.buffer.read(cx).read(cx);
12931 selections
12932 .into_iter()
12933 .map(|mut selection| {
12934 selection.start.0 =
12935 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12936 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12937 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12938 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12939 })
12940 .collect()
12941 }
12942
12943 fn report_editor_event(
12944 &self,
12945 operation: &'static str,
12946 file_extension: Option<String>,
12947 cx: &AppContext,
12948 ) {
12949 if cfg!(any(test, feature = "test-support")) {
12950 return;
12951 }
12952
12953 let Some(project) = &self.project else { return };
12954
12955 // If None, we are in a file without an extension
12956 let file = self
12957 .buffer
12958 .read(cx)
12959 .as_singleton()
12960 .and_then(|b| b.read(cx).file());
12961 let file_extension = file_extension.or(file
12962 .as_ref()
12963 .and_then(|file| Path::new(file.file_name(cx)).extension())
12964 .and_then(|e| e.to_str())
12965 .map(|a| a.to_string()));
12966
12967 let vim_mode = cx
12968 .global::<SettingsStore>()
12969 .raw_user_settings()
12970 .get("vim_mode")
12971 == Some(&serde_json::Value::Bool(true));
12972
12973 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12974 == language::language_settings::InlineCompletionProvider::Copilot;
12975 let copilot_enabled_for_language = self
12976 .buffer
12977 .read(cx)
12978 .settings_at(0, cx)
12979 .show_inline_completions;
12980
12981 let project = project.read(cx);
12982 let telemetry = project.client().telemetry().clone();
12983 telemetry.report_editor_event(
12984 file_extension,
12985 vim_mode,
12986 operation,
12987 copilot_enabled,
12988 copilot_enabled_for_language,
12989 project.is_via_ssh(),
12990 )
12991 }
12992
12993 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12994 /// with each line being an array of {text, highlight} objects.
12995 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12996 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12997 return;
12998 };
12999
13000 #[derive(Serialize)]
13001 struct Chunk<'a> {
13002 text: String,
13003 highlight: Option<&'a str>,
13004 }
13005
13006 let snapshot = buffer.read(cx).snapshot();
13007 let range = self
13008 .selected_text_range(false, cx)
13009 .and_then(|selection| {
13010 if selection.range.is_empty() {
13011 None
13012 } else {
13013 Some(selection.range)
13014 }
13015 })
13016 .unwrap_or_else(|| 0..snapshot.len());
13017
13018 let chunks = snapshot.chunks(range, true);
13019 let mut lines = Vec::new();
13020 let mut line: VecDeque<Chunk> = VecDeque::new();
13021
13022 let Some(style) = self.style.as_ref() else {
13023 return;
13024 };
13025
13026 for chunk in chunks {
13027 let highlight = chunk
13028 .syntax_highlight_id
13029 .and_then(|id| id.name(&style.syntax));
13030 let mut chunk_lines = chunk.text.split('\n').peekable();
13031 while let Some(text) = chunk_lines.next() {
13032 let mut merged_with_last_token = false;
13033 if let Some(last_token) = line.back_mut() {
13034 if last_token.highlight == highlight {
13035 last_token.text.push_str(text);
13036 merged_with_last_token = true;
13037 }
13038 }
13039
13040 if !merged_with_last_token {
13041 line.push_back(Chunk {
13042 text: text.into(),
13043 highlight,
13044 });
13045 }
13046
13047 if chunk_lines.peek().is_some() {
13048 if line.len() > 1 && line.front().unwrap().text.is_empty() {
13049 line.pop_front();
13050 }
13051 if line.len() > 1 && line.back().unwrap().text.is_empty() {
13052 line.pop_back();
13053 }
13054
13055 lines.push(mem::take(&mut line));
13056 }
13057 }
13058 }
13059
13060 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
13061 return;
13062 };
13063 cx.write_to_clipboard(ClipboardItem::new_string(lines));
13064 }
13065
13066 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
13067 &self.inlay_hint_cache
13068 }
13069
13070 pub fn replay_insert_event(
13071 &mut self,
13072 text: &str,
13073 relative_utf16_range: Option<Range<isize>>,
13074 cx: &mut ViewContext<Self>,
13075 ) {
13076 if !self.input_enabled {
13077 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13078 return;
13079 }
13080 if let Some(relative_utf16_range) = relative_utf16_range {
13081 let selections = self.selections.all::<OffsetUtf16>(cx);
13082 self.change_selections(None, cx, |s| {
13083 let new_ranges = selections.into_iter().map(|range| {
13084 let start = OffsetUtf16(
13085 range
13086 .head()
13087 .0
13088 .saturating_add_signed(relative_utf16_range.start),
13089 );
13090 let end = OffsetUtf16(
13091 range
13092 .head()
13093 .0
13094 .saturating_add_signed(relative_utf16_range.end),
13095 );
13096 start..end
13097 });
13098 s.select_ranges(new_ranges);
13099 });
13100 }
13101
13102 self.handle_input(text, cx);
13103 }
13104
13105 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
13106 let Some(provider) = self.semantics_provider.as_ref() else {
13107 return false;
13108 };
13109
13110 let mut supports = false;
13111 self.buffer().read(cx).for_each_buffer(|buffer| {
13112 supports |= provider.supports_inlay_hints(buffer, cx);
13113 });
13114 supports
13115 }
13116
13117 pub fn focus(&self, cx: &mut WindowContext) {
13118 cx.focus(&self.focus_handle)
13119 }
13120
13121 pub fn is_focused(&self, cx: &WindowContext) -> bool {
13122 self.focus_handle.is_focused(cx)
13123 }
13124
13125 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
13126 cx.emit(EditorEvent::Focused);
13127
13128 if let Some(descendant) = self
13129 .last_focused_descendant
13130 .take()
13131 .and_then(|descendant| descendant.upgrade())
13132 {
13133 cx.focus(&descendant);
13134 } else {
13135 if let Some(blame) = self.blame.as_ref() {
13136 blame.update(cx, GitBlame::focus)
13137 }
13138
13139 self.blink_manager.update(cx, BlinkManager::enable);
13140 self.show_cursor_names(cx);
13141 self.buffer.update(cx, |buffer, cx| {
13142 buffer.finalize_last_transaction(cx);
13143 if self.leader_peer_id.is_none() {
13144 buffer.set_active_selections(
13145 &self.selections.disjoint_anchors(),
13146 self.selections.line_mode,
13147 self.cursor_shape,
13148 cx,
13149 );
13150 }
13151 });
13152 }
13153 }
13154
13155 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
13156 cx.emit(EditorEvent::FocusedIn)
13157 }
13158
13159 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
13160 if event.blurred != self.focus_handle {
13161 self.last_focused_descendant = Some(event.blurred);
13162 }
13163 }
13164
13165 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
13166 self.blink_manager.update(cx, BlinkManager::disable);
13167 self.buffer
13168 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
13169
13170 if let Some(blame) = self.blame.as_ref() {
13171 blame.update(cx, GitBlame::blur)
13172 }
13173 if !self.hover_state.focused(cx) {
13174 hide_hover(self, cx);
13175 }
13176
13177 self.hide_context_menu(cx);
13178 cx.emit(EditorEvent::Blurred);
13179 cx.notify();
13180 }
13181
13182 pub fn register_action<A: Action>(
13183 &mut self,
13184 listener: impl Fn(&A, &mut WindowContext) + 'static,
13185 ) -> Subscription {
13186 let id = self.next_editor_action_id.post_inc();
13187 let listener = Arc::new(listener);
13188 self.editor_actions.borrow_mut().insert(
13189 id,
13190 Box::new(move |cx| {
13191 let cx = cx.window_context();
13192 let listener = listener.clone();
13193 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
13194 let action = action.downcast_ref().unwrap();
13195 if phase == DispatchPhase::Bubble {
13196 listener(action, cx)
13197 }
13198 })
13199 }),
13200 );
13201
13202 let editor_actions = self.editor_actions.clone();
13203 Subscription::new(move || {
13204 editor_actions.borrow_mut().remove(&id);
13205 })
13206 }
13207
13208 pub fn file_header_size(&self) -> u32 {
13209 FILE_HEADER_HEIGHT
13210 }
13211
13212 pub fn revert(
13213 &mut self,
13214 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13215 cx: &mut ViewContext<Self>,
13216 ) {
13217 self.buffer().update(cx, |multi_buffer, cx| {
13218 for (buffer_id, changes) in revert_changes {
13219 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13220 buffer.update(cx, |buffer, cx| {
13221 buffer.edit(
13222 changes.into_iter().map(|(range, text)| {
13223 (range, text.to_string().map(Arc::<str>::from))
13224 }),
13225 None,
13226 cx,
13227 );
13228 });
13229 }
13230 }
13231 });
13232 self.change_selections(None, cx, |selections| selections.refresh());
13233 }
13234
13235 pub fn to_pixel_point(
13236 &mut self,
13237 source: multi_buffer::Anchor,
13238 editor_snapshot: &EditorSnapshot,
13239 cx: &mut ViewContext<Self>,
13240 ) -> Option<gpui::Point<Pixels>> {
13241 let source_point = source.to_display_point(editor_snapshot);
13242 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13243 }
13244
13245 pub fn display_to_pixel_point(
13246 &mut self,
13247 source: DisplayPoint,
13248 editor_snapshot: &EditorSnapshot,
13249 cx: &mut ViewContext<Self>,
13250 ) -> Option<gpui::Point<Pixels>> {
13251 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13252 let text_layout_details = self.text_layout_details(cx);
13253 let scroll_top = text_layout_details
13254 .scroll_anchor
13255 .scroll_position(editor_snapshot)
13256 .y;
13257
13258 if source.row().as_f32() < scroll_top.floor() {
13259 return None;
13260 }
13261 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13262 let source_y = line_height * (source.row().as_f32() - scroll_top);
13263 Some(gpui::Point::new(source_x, source_y))
13264 }
13265
13266 pub fn has_active_completions_menu(&self) -> bool {
13267 self.context_menu.read().as_ref().map_or(false, |menu| {
13268 menu.visible() && matches!(menu, ContextMenu::Completions(_))
13269 })
13270 }
13271
13272 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13273 self.addons
13274 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13275 }
13276
13277 pub fn unregister_addon<T: Addon>(&mut self) {
13278 self.addons.remove(&std::any::TypeId::of::<T>());
13279 }
13280
13281 pub fn addon<T: Addon>(&self) -> Option<&T> {
13282 let type_id = std::any::TypeId::of::<T>();
13283 self.addons
13284 .get(&type_id)
13285 .and_then(|item| item.to_any().downcast_ref::<T>())
13286 }
13287}
13288
13289fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13290 let tab_size = tab_size.get() as usize;
13291 let mut width = offset;
13292
13293 for ch in text.chars() {
13294 width += if ch == '\t' {
13295 tab_size - (width % tab_size)
13296 } else {
13297 1
13298 };
13299 }
13300
13301 width - offset
13302}
13303
13304#[cfg(test)]
13305mod tests {
13306 use super::*;
13307
13308 #[test]
13309 fn test_string_size_with_expanded_tabs() {
13310 let nz = |val| NonZeroU32::new(val).unwrap();
13311 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13312 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13313 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13314 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13315 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13316 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13317 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13318 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13319 }
13320}
13321
13322/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13323struct WordBreakingTokenizer<'a> {
13324 input: &'a str,
13325}
13326
13327impl<'a> WordBreakingTokenizer<'a> {
13328 fn new(input: &'a str) -> Self {
13329 Self { input }
13330 }
13331}
13332
13333fn is_char_ideographic(ch: char) -> bool {
13334 use unicode_script::Script::*;
13335 use unicode_script::UnicodeScript;
13336 matches!(ch.script(), Han | Tangut | Yi)
13337}
13338
13339fn is_grapheme_ideographic(text: &str) -> bool {
13340 text.chars().any(is_char_ideographic)
13341}
13342
13343fn is_grapheme_whitespace(text: &str) -> bool {
13344 text.chars().any(|x| x.is_whitespace())
13345}
13346
13347fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13348 text.chars().next().map_or(false, |ch| {
13349 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13350 })
13351}
13352
13353#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13354struct WordBreakToken<'a> {
13355 token: &'a str,
13356 grapheme_len: usize,
13357 is_whitespace: bool,
13358}
13359
13360impl<'a> Iterator for WordBreakingTokenizer<'a> {
13361 /// Yields a span, the count of graphemes in the token, and whether it was
13362 /// whitespace. Note that it also breaks at word boundaries.
13363 type Item = WordBreakToken<'a>;
13364
13365 fn next(&mut self) -> Option<Self::Item> {
13366 use unicode_segmentation::UnicodeSegmentation;
13367 if self.input.is_empty() {
13368 return None;
13369 }
13370
13371 let mut iter = self.input.graphemes(true).peekable();
13372 let mut offset = 0;
13373 let mut graphemes = 0;
13374 if let Some(first_grapheme) = iter.next() {
13375 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13376 offset += first_grapheme.len();
13377 graphemes += 1;
13378 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13379 if let Some(grapheme) = iter.peek().copied() {
13380 if should_stay_with_preceding_ideograph(grapheme) {
13381 offset += grapheme.len();
13382 graphemes += 1;
13383 }
13384 }
13385 } else {
13386 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13387 let mut next_word_bound = words.peek().copied();
13388 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13389 next_word_bound = words.next();
13390 }
13391 while let Some(grapheme) = iter.peek().copied() {
13392 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13393 break;
13394 };
13395 if is_grapheme_whitespace(grapheme) != is_whitespace {
13396 break;
13397 };
13398 offset += grapheme.len();
13399 graphemes += 1;
13400 iter.next();
13401 }
13402 }
13403 let token = &self.input[..offset];
13404 self.input = &self.input[offset..];
13405 if is_whitespace {
13406 Some(WordBreakToken {
13407 token: " ",
13408 grapheme_len: 1,
13409 is_whitespace: true,
13410 })
13411 } else {
13412 Some(WordBreakToken {
13413 token,
13414 grapheme_len: graphemes,
13415 is_whitespace: false,
13416 })
13417 }
13418 } else {
13419 None
13420 }
13421 }
13422}
13423
13424#[test]
13425fn test_word_breaking_tokenizer() {
13426 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13427 ("", &[]),
13428 (" ", &[(" ", 1, true)]),
13429 ("Ʒ", &[("Ʒ", 1, false)]),
13430 ("Ǽ", &[("Ǽ", 1, false)]),
13431 ("⋑", &[("⋑", 1, false)]),
13432 ("⋑⋑", &[("⋑⋑", 2, false)]),
13433 (
13434 "原理，进而",
13435 &[
13436 ("原", 1, false),
13437 ("理，", 2, false),
13438 ("进", 1, false),
13439 ("而", 1, false),
13440 ],
13441 ),
13442 (
13443 "hello world",
13444 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13445 ),
13446 (
13447 "hello, world",
13448 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13449 ),
13450 (
13451 " hello world",
13452 &[
13453 (" ", 1, true),
13454 ("hello", 5, false),
13455 (" ", 1, true),
13456 ("world", 5, false),
13457 ],
13458 ),
13459 (
13460 "这是什么 \n 钢笔",
13461 &[
13462 ("这", 1, false),
13463 ("是", 1, false),
13464 ("什", 1, false),
13465 ("么", 1, false),
13466 (" ", 1, true),
13467 ("钢", 1, false),
13468 ("笔", 1, false),
13469 ],
13470 ),
13471 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13472 ];
13473
13474 for (input, result) in tests {
13475 assert_eq!(
13476 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13477 result
13478 .iter()
13479 .copied()
13480 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13481 token,
13482 grapheme_len,
13483 is_whitespace,
13484 })
13485 .collect::<Vec<_>>()
13486 );
13487 }
13488}
13489
13490fn wrap_with_prefix(
13491 line_prefix: String,
13492 unwrapped_text: String,
13493 wrap_column: usize,
13494 tab_size: NonZeroU32,
13495) -> String {
13496 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13497 let mut wrapped_text = String::new();
13498 let mut current_line = line_prefix.clone();
13499
13500 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13501 let mut current_line_len = line_prefix_len;
13502 for WordBreakToken {
13503 token,
13504 grapheme_len,
13505 is_whitespace,
13506 } in tokenizer
13507 {
13508 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13509 wrapped_text.push_str(current_line.trim_end());
13510 wrapped_text.push('\n');
13511 current_line.truncate(line_prefix.len());
13512 current_line_len = line_prefix_len;
13513 if !is_whitespace {
13514 current_line.push_str(token);
13515 current_line_len += grapheme_len;
13516 }
13517 } else if !is_whitespace {
13518 current_line.push_str(token);
13519 current_line_len += grapheme_len;
13520 } else if current_line_len != line_prefix_len {
13521 current_line.push(' ');
13522 current_line_len += 1;
13523 }
13524 }
13525
13526 if !current_line.is_empty() {
13527 wrapped_text.push_str(¤t_line);
13528 }
13529 wrapped_text
13530}
13531
13532#[test]
13533fn test_wrap_with_prefix() {
13534 assert_eq!(
13535 wrap_with_prefix(
13536 "# ".to_string(),
13537 "abcdefg".to_string(),
13538 4,
13539 NonZeroU32::new(4).unwrap()
13540 ),
13541 "# abcdefg"
13542 );
13543 assert_eq!(
13544 wrap_with_prefix(
13545 "".to_string(),
13546 "\thello world".to_string(),
13547 8,
13548 NonZeroU32::new(4).unwrap()
13549 ),
13550 "hello\nworld"
13551 );
13552 assert_eq!(
13553 wrap_with_prefix(
13554 "// ".to_string(),
13555 "xx \nyy zz aa bb cc".to_string(),
13556 12,
13557 NonZeroU32::new(4).unwrap()
13558 ),
13559 "// xx yy zz\n// aa bb cc"
13560 );
13561 assert_eq!(
13562 wrap_with_prefix(
13563 String::new(),
13564 "这是什么 \n 钢笔".to_string(),
13565 3,
13566 NonZeroU32::new(4).unwrap()
13567 ),
13568 "这是什\n么 钢\n笔"
13569 );
13570}
13571
13572fn hunks_for_selections(
13573 multi_buffer_snapshot: &MultiBufferSnapshot,
13574 selections: &[Selection<Anchor>],
13575) -> Vec<MultiBufferDiffHunk> {
13576 let buffer_rows_for_selections = selections.iter().map(|selection| {
13577 let head = selection.head();
13578 let tail = selection.tail();
13579 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
13580 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
13581 if start > end {
13582 end..start
13583 } else {
13584 start..end
13585 }
13586 });
13587
13588 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
13589}
13590
13591pub fn hunks_for_rows(
13592 rows: impl Iterator<Item = Range<MultiBufferRow>>,
13593 multi_buffer_snapshot: &MultiBufferSnapshot,
13594) -> Vec<MultiBufferDiffHunk> {
13595 let mut hunks = Vec::new();
13596 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13597 HashMap::default();
13598 for selected_multi_buffer_rows in rows {
13599 let query_rows =
13600 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
13601 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
13602 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13603 // when the caret is just above or just below the deleted hunk.
13604 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13605 let related_to_selection = if allow_adjacent {
13606 hunk.row_range.overlaps(&query_rows)
13607 || hunk.row_range.start == query_rows.end
13608 || hunk.row_range.end == query_rows.start
13609 } else {
13610 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
13611 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
13612 hunk.row_range.overlaps(&selected_multi_buffer_rows)
13613 || selected_multi_buffer_rows.end == hunk.row_range.start
13614 };
13615 if related_to_selection {
13616 if !processed_buffer_rows
13617 .entry(hunk.buffer_id)
13618 .or_default()
13619 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13620 {
13621 continue;
13622 }
13623 hunks.push(hunk);
13624 }
13625 }
13626 }
13627
13628 hunks
13629}
13630
13631pub trait CollaborationHub {
13632 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13633 fn user_participant_indices<'a>(
13634 &self,
13635 cx: &'a AppContext,
13636 ) -> &'a HashMap<u64, ParticipantIndex>;
13637 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13638}
13639
13640impl CollaborationHub for Model<Project> {
13641 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13642 self.read(cx).collaborators()
13643 }
13644
13645 fn user_participant_indices<'a>(
13646 &self,
13647 cx: &'a AppContext,
13648 ) -> &'a HashMap<u64, ParticipantIndex> {
13649 self.read(cx).user_store().read(cx).participant_indices()
13650 }
13651
13652 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13653 let this = self.read(cx);
13654 let user_ids = this.collaborators().values().map(|c| c.user_id);
13655 this.user_store().read_with(cx, |user_store, cx| {
13656 user_store.participant_names(user_ids, cx)
13657 })
13658 }
13659}
13660
13661pub trait SemanticsProvider {
13662 fn hover(
13663 &self,
13664 buffer: &Model<Buffer>,
13665 position: text::Anchor,
13666 cx: &mut AppContext,
13667 ) -> Option<Task<Vec<project::Hover>>>;
13668
13669 fn inlay_hints(
13670 &self,
13671 buffer_handle: Model<Buffer>,
13672 range: Range<text::Anchor>,
13673 cx: &mut AppContext,
13674 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13675
13676 fn resolve_inlay_hint(
13677 &self,
13678 hint: InlayHint,
13679 buffer_handle: Model<Buffer>,
13680 server_id: LanguageServerId,
13681 cx: &mut AppContext,
13682 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13683
13684 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13685
13686 fn document_highlights(
13687 &self,
13688 buffer: &Model<Buffer>,
13689 position: text::Anchor,
13690 cx: &mut AppContext,
13691 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13692
13693 fn definitions(
13694 &self,
13695 buffer: &Model<Buffer>,
13696 position: text::Anchor,
13697 kind: GotoDefinitionKind,
13698 cx: &mut AppContext,
13699 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13700
13701 fn range_for_rename(
13702 &self,
13703 buffer: &Model<Buffer>,
13704 position: text::Anchor,
13705 cx: &mut AppContext,
13706 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13707
13708 fn perform_rename(
13709 &self,
13710 buffer: &Model<Buffer>,
13711 position: text::Anchor,
13712 new_name: String,
13713 cx: &mut AppContext,
13714 ) -> Option<Task<Result<ProjectTransaction>>>;
13715}
13716
13717pub trait CompletionProvider {
13718 fn completions(
13719 &self,
13720 buffer: &Model<Buffer>,
13721 buffer_position: text::Anchor,
13722 trigger: CompletionContext,
13723 cx: &mut ViewContext<Editor>,
13724 ) -> Task<Result<Vec<Completion>>>;
13725
13726 fn resolve_completions(
13727 &self,
13728 buffer: Model<Buffer>,
13729 completion_indices: Vec<usize>,
13730 completions: Arc<RwLock<Box<[Completion]>>>,
13731 cx: &mut ViewContext<Editor>,
13732 ) -> Task<Result<bool>>;
13733
13734 fn apply_additional_edits_for_completion(
13735 &self,
13736 buffer: Model<Buffer>,
13737 completion: Completion,
13738 push_to_history: bool,
13739 cx: &mut ViewContext<Editor>,
13740 ) -> Task<Result<Option<language::Transaction>>>;
13741
13742 fn is_completion_trigger(
13743 &self,
13744 buffer: &Model<Buffer>,
13745 position: language::Anchor,
13746 text: &str,
13747 trigger_in_words: bool,
13748 cx: &mut ViewContext<Editor>,
13749 ) -> bool;
13750
13751 fn sort_completions(&self) -> bool {
13752 true
13753 }
13754}
13755
13756pub trait CodeActionProvider {
13757 fn code_actions(
13758 &self,
13759 buffer: &Model<Buffer>,
13760 range: Range<text::Anchor>,
13761 cx: &mut WindowContext,
13762 ) -> Task<Result<Vec<CodeAction>>>;
13763
13764 fn apply_code_action(
13765 &self,
13766 buffer_handle: Model<Buffer>,
13767 action: CodeAction,
13768 excerpt_id: ExcerptId,
13769 push_to_history: bool,
13770 cx: &mut WindowContext,
13771 ) -> Task<Result<ProjectTransaction>>;
13772}
13773
13774impl CodeActionProvider for Model<Project> {
13775 fn code_actions(
13776 &self,
13777 buffer: &Model<Buffer>,
13778 range: Range<text::Anchor>,
13779 cx: &mut WindowContext,
13780 ) -> Task<Result<Vec<CodeAction>>> {
13781 self.update(cx, |project, cx| {
13782 project.code_actions(buffer, range, None, cx)
13783 })
13784 }
13785
13786 fn apply_code_action(
13787 &self,
13788 buffer_handle: Model<Buffer>,
13789 action: CodeAction,
13790 _excerpt_id: ExcerptId,
13791 push_to_history: bool,
13792 cx: &mut WindowContext,
13793 ) -> Task<Result<ProjectTransaction>> {
13794 self.update(cx, |project, cx| {
13795 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13796 })
13797 }
13798}
13799
13800fn snippet_completions(
13801 project: &Project,
13802 buffer: &Model<Buffer>,
13803 buffer_position: text::Anchor,
13804 cx: &mut AppContext,
13805) -> Task<Result<Vec<Completion>>> {
13806 let language = buffer.read(cx).language_at(buffer_position);
13807 let language_name = language.as_ref().map(|language| language.lsp_id());
13808 let snippet_store = project.snippets().read(cx);
13809 let snippets = snippet_store.snippets_for(language_name, cx);
13810
13811 if snippets.is_empty() {
13812 return Task::ready(Ok(vec![]));
13813 }
13814 let snapshot = buffer.read(cx).text_snapshot();
13815 let chars: String = snapshot
13816 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13817 .collect();
13818
13819 let scope = language.map(|language| language.default_scope());
13820 let executor = cx.background_executor().clone();
13821
13822 cx.background_executor().spawn(async move {
13823 let classifier = CharClassifier::new(scope).for_completion(true);
13824 let mut last_word = chars
13825 .chars()
13826 .take_while(|c| classifier.is_word(*c))
13827 .collect::<String>();
13828 last_word = last_word.chars().rev().collect();
13829
13830 if last_word.is_empty() {
13831 return Ok(vec![]);
13832 }
13833
13834 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13835 let to_lsp = |point: &text::Anchor| {
13836 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13837 point_to_lsp(end)
13838 };
13839 let lsp_end = to_lsp(&buffer_position);
13840
13841 let candidates = snippets
13842 .iter()
13843 .enumerate()
13844 .flat_map(|(ix, snippet)| {
13845 snippet
13846 .prefix
13847 .iter()
13848 .map(move |prefix| StringMatchCandidate::new(ix, prefix.clone()))
13849 })
13850 .collect::<Vec<StringMatchCandidate>>();
13851
13852 let mut matches = fuzzy::match_strings(
13853 &candidates,
13854 &last_word,
13855 last_word.chars().any(|c| c.is_uppercase()),
13856 100,
13857 &Default::default(),
13858 executor,
13859 )
13860 .await;
13861
13862 // Remove all candidates where the query's start does not match the start of any word in the candidate
13863 if let Some(query_start) = last_word.chars().next() {
13864 matches.retain(|string_match| {
13865 split_words(&string_match.string).any(|word| {
13866 // Check that the first codepoint of the word as lowercase matches the first
13867 // codepoint of the query as lowercase
13868 word.chars()
13869 .flat_map(|codepoint| codepoint.to_lowercase())
13870 .zip(query_start.to_lowercase())
13871 .all(|(word_cp, query_cp)| word_cp == query_cp)
13872 })
13873 });
13874 }
13875
13876 let matched_strings = matches
13877 .into_iter()
13878 .map(|m| m.string)
13879 .collect::<HashSet<_>>();
13880
13881 let result: Vec<Completion> = snippets
13882 .into_iter()
13883 .filter_map(|snippet| {
13884 let matching_prefix = snippet
13885 .prefix
13886 .iter()
13887 .find(|prefix| matched_strings.contains(*prefix))?;
13888 let start = as_offset - last_word.len();
13889 let start = snapshot.anchor_before(start);
13890 let range = start..buffer_position;
13891 let lsp_start = to_lsp(&start);
13892 let lsp_range = lsp::Range {
13893 start: lsp_start,
13894 end: lsp_end,
13895 };
13896 Some(Completion {
13897 old_range: range,
13898 new_text: snippet.body.clone(),
13899 label: CodeLabel {
13900 text: matching_prefix.clone(),
13901 runs: vec![],
13902 filter_range: 0..matching_prefix.len(),
13903 },
13904 server_id: LanguageServerId(usize::MAX),
13905 documentation: snippet.description.clone().map(Documentation::SingleLine),
13906 lsp_completion: lsp::CompletionItem {
13907 label: snippet.prefix.first().unwrap().clone(),
13908 kind: Some(CompletionItemKind::SNIPPET),
13909 label_details: snippet.description.as_ref().map(|description| {
13910 lsp::CompletionItemLabelDetails {
13911 detail: Some(description.clone()),
13912 description: None,
13913 }
13914 }),
13915 insert_text_format: Some(InsertTextFormat::SNIPPET),
13916 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13917 lsp::InsertReplaceEdit {
13918 new_text: snippet.body.clone(),
13919 insert: lsp_range,
13920 replace: lsp_range,
13921 },
13922 )),
13923 filter_text: Some(snippet.body.clone()),
13924 sort_text: Some(char::MAX.to_string()),
13925 ..Default::default()
13926 },
13927 confirm: None,
13928 })
13929 })
13930 .collect();
13931
13932 Ok(result)
13933 })
13934}
13935
13936impl CompletionProvider for Model<Project> {
13937 fn completions(
13938 &self,
13939 buffer: &Model<Buffer>,
13940 buffer_position: text::Anchor,
13941 options: CompletionContext,
13942 cx: &mut ViewContext<Editor>,
13943 ) -> Task<Result<Vec<Completion>>> {
13944 self.update(cx, |project, cx| {
13945 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13946 let project_completions = project.completions(buffer, buffer_position, options, cx);
13947 cx.background_executor().spawn(async move {
13948 let mut completions = project_completions.await?;
13949 let snippets_completions = snippets.await?;
13950 completions.extend(snippets_completions);
13951 Ok(completions)
13952 })
13953 })
13954 }
13955
13956 fn resolve_completions(
13957 &self,
13958 buffer: Model<Buffer>,
13959 completion_indices: Vec<usize>,
13960 completions: Arc<RwLock<Box<[Completion]>>>,
13961 cx: &mut ViewContext<Editor>,
13962 ) -> Task<Result<bool>> {
13963 self.update(cx, |project, cx| {
13964 project.resolve_completions(buffer, completion_indices, completions, cx)
13965 })
13966 }
13967
13968 fn apply_additional_edits_for_completion(
13969 &self,
13970 buffer: Model<Buffer>,
13971 completion: Completion,
13972 push_to_history: bool,
13973 cx: &mut ViewContext<Editor>,
13974 ) -> Task<Result<Option<language::Transaction>>> {
13975 self.update(cx, |project, cx| {
13976 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13977 })
13978 }
13979
13980 fn is_completion_trigger(
13981 &self,
13982 buffer: &Model<Buffer>,
13983 position: language::Anchor,
13984 text: &str,
13985 trigger_in_words: bool,
13986 cx: &mut ViewContext<Editor>,
13987 ) -> bool {
13988 if !EditorSettings::get_global(cx).show_completions_on_input {
13989 return false;
13990 }
13991
13992 let mut chars = text.chars();
13993 let char = if let Some(char) = chars.next() {
13994 char
13995 } else {
13996 return false;
13997 };
13998 if chars.next().is_some() {
13999 return false;
14000 }
14001
14002 let buffer = buffer.read(cx);
14003 let classifier = buffer
14004 .snapshot()
14005 .char_classifier_at(position)
14006 .for_completion(true);
14007 if trigger_in_words && classifier.is_word(char) {
14008 return true;
14009 }
14010
14011 buffer.completion_triggers().contains(text)
14012 }
14013}
14014
14015impl SemanticsProvider for Model<Project> {
14016 fn hover(
14017 &self,
14018 buffer: &Model<Buffer>,
14019 position: text::Anchor,
14020 cx: &mut AppContext,
14021 ) -> Option<Task<Vec<project::Hover>>> {
14022 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
14023 }
14024
14025 fn document_highlights(
14026 &self,
14027 buffer: &Model<Buffer>,
14028 position: text::Anchor,
14029 cx: &mut AppContext,
14030 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
14031 Some(self.update(cx, |project, cx| {
14032 project.document_highlights(buffer, position, cx)
14033 }))
14034 }
14035
14036 fn definitions(
14037 &self,
14038 buffer: &Model<Buffer>,
14039 position: text::Anchor,
14040 kind: GotoDefinitionKind,
14041 cx: &mut AppContext,
14042 ) -> Option<Task<Result<Vec<LocationLink>>>> {
14043 Some(self.update(cx, |project, cx| match kind {
14044 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
14045 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
14046 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
14047 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
14048 }))
14049 }
14050
14051 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
14052 // TODO: make this work for remote projects
14053 self.read(cx)
14054 .language_servers_for_buffer(buffer.read(cx), cx)
14055 .any(
14056 |(_, server)| match server.capabilities().inlay_hint_provider {
14057 Some(lsp::OneOf::Left(enabled)) => enabled,
14058 Some(lsp::OneOf::Right(_)) => true,
14059 None => false,
14060 },
14061 )
14062 }
14063
14064 fn inlay_hints(
14065 &self,
14066 buffer_handle: Model<Buffer>,
14067 range: Range<text::Anchor>,
14068 cx: &mut AppContext,
14069 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
14070 Some(self.update(cx, |project, cx| {
14071 project.inlay_hints(buffer_handle, range, cx)
14072 }))
14073 }
14074
14075 fn resolve_inlay_hint(
14076 &self,
14077 hint: InlayHint,
14078 buffer_handle: Model<Buffer>,
14079 server_id: LanguageServerId,
14080 cx: &mut AppContext,
14081 ) -> Option<Task<anyhow::Result<InlayHint>>> {
14082 Some(self.update(cx, |project, cx| {
14083 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
14084 }))
14085 }
14086
14087 fn range_for_rename(
14088 &self,
14089 buffer: &Model<Buffer>,
14090 position: text::Anchor,
14091 cx: &mut AppContext,
14092 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
14093 Some(self.update(cx, |project, cx| {
14094 project.prepare_rename(buffer.clone(), position, cx)
14095 }))
14096 }
14097
14098 fn perform_rename(
14099 &self,
14100 buffer: &Model<Buffer>,
14101 position: text::Anchor,
14102 new_name: String,
14103 cx: &mut AppContext,
14104 ) -> Option<Task<Result<ProjectTransaction>>> {
14105 Some(self.update(cx, |project, cx| {
14106 project.perform_rename(buffer.clone(), position, new_name, cx)
14107 }))
14108 }
14109}
14110
14111fn inlay_hint_settings(
14112 location: Anchor,
14113 snapshot: &MultiBufferSnapshot,
14114 cx: &mut ViewContext<'_, Editor>,
14115) -> InlayHintSettings {
14116 let file = snapshot.file_at(location);
14117 let language = snapshot.language_at(location).map(|l| l.name());
14118 language_settings(language, file, cx).inlay_hints
14119}
14120
14121fn consume_contiguous_rows(
14122 contiguous_row_selections: &mut Vec<Selection<Point>>,
14123 selection: &Selection<Point>,
14124 display_map: &DisplaySnapshot,
14125 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
14126) -> (MultiBufferRow, MultiBufferRow) {
14127 contiguous_row_selections.push(selection.clone());
14128 let start_row = MultiBufferRow(selection.start.row);
14129 let mut end_row = ending_row(selection, display_map);
14130
14131 while let Some(next_selection) = selections.peek() {
14132 if next_selection.start.row <= end_row.0 {
14133 end_row = ending_row(next_selection, display_map);
14134 contiguous_row_selections.push(selections.next().unwrap().clone());
14135 } else {
14136 break;
14137 }
14138 }
14139 (start_row, end_row)
14140}
14141
14142fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
14143 if next_selection.end.column > 0 || next_selection.is_empty() {
14144 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
14145 } else {
14146 MultiBufferRow(next_selection.end.row)
14147 }
14148}
14149
14150impl EditorSnapshot {
14151 pub fn remote_selections_in_range<'a>(
14152 &'a self,
14153 range: &'a Range<Anchor>,
14154 collaboration_hub: &dyn CollaborationHub,
14155 cx: &'a AppContext,
14156 ) -> impl 'a + Iterator<Item = RemoteSelection> {
14157 let participant_names = collaboration_hub.user_names(cx);
14158 let participant_indices = collaboration_hub.user_participant_indices(cx);
14159 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
14160 let collaborators_by_replica_id = collaborators_by_peer_id
14161 .iter()
14162 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
14163 .collect::<HashMap<_, _>>();
14164 self.buffer_snapshot
14165 .selections_in_range(range, false)
14166 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
14167 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
14168 let participant_index = participant_indices.get(&collaborator.user_id).copied();
14169 let user_name = participant_names.get(&collaborator.user_id).cloned();
14170 Some(RemoteSelection {
14171 replica_id,
14172 selection,
14173 cursor_shape,
14174 line_mode,
14175 participant_index,
14176 peer_id: collaborator.peer_id,
14177 user_name,
14178 })
14179 })
14180 }
14181
14182 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
14183 self.display_snapshot.buffer_snapshot.language_at(position)
14184 }
14185
14186 pub fn is_focused(&self) -> bool {
14187 self.is_focused
14188 }
14189
14190 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14191 self.placeholder_text.as_ref()
14192 }
14193
14194 pub fn scroll_position(&self) -> gpui::Point<f32> {
14195 self.scroll_anchor.scroll_position(&self.display_snapshot)
14196 }
14197
14198 fn gutter_dimensions(
14199 &self,
14200 font_id: FontId,
14201 font_size: Pixels,
14202 em_width: Pixels,
14203 em_advance: Pixels,
14204 max_line_number_width: Pixels,
14205 cx: &AppContext,
14206 ) -> GutterDimensions {
14207 if !self.show_gutter {
14208 return GutterDimensions::default();
14209 }
14210 let descent = cx.text_system().descent(font_id, font_size);
14211
14212 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14213 matches!(
14214 ProjectSettings::get_global(cx).git.git_gutter,
14215 Some(GitGutterSetting::TrackedFiles)
14216 )
14217 });
14218 let gutter_settings = EditorSettings::get_global(cx).gutter;
14219 let show_line_numbers = self
14220 .show_line_numbers
14221 .unwrap_or(gutter_settings.line_numbers);
14222 let line_gutter_width = if show_line_numbers {
14223 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14224 let min_width_for_number_on_gutter = em_advance * 4.0;
14225 max_line_number_width.max(min_width_for_number_on_gutter)
14226 } else {
14227 0.0.into()
14228 };
14229
14230 let show_code_actions = self
14231 .show_code_actions
14232 .unwrap_or(gutter_settings.code_actions);
14233
14234 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14235
14236 let git_blame_entries_width =
14237 self.git_blame_gutter_max_author_length
14238 .map(|max_author_length| {
14239 // Length of the author name, but also space for the commit hash,
14240 // the spacing and the timestamp.
14241 let max_char_count = max_author_length
14242 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14243 + 7 // length of commit sha
14244 + 14 // length of max relative timestamp ("60 minutes ago")
14245 + 4; // gaps and margins
14246
14247 em_advance * max_char_count
14248 });
14249
14250 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14251 left_padding += if show_code_actions || show_runnables {
14252 em_width * 3.0
14253 } else if show_git_gutter && show_line_numbers {
14254 em_width * 2.0
14255 } else if show_git_gutter || show_line_numbers {
14256 em_width
14257 } else {
14258 px(0.)
14259 };
14260
14261 let right_padding = if gutter_settings.folds && show_line_numbers {
14262 em_width * 4.0
14263 } else if gutter_settings.folds {
14264 em_width * 3.0
14265 } else if show_line_numbers {
14266 em_width
14267 } else {
14268 px(0.)
14269 };
14270
14271 GutterDimensions {
14272 left_padding,
14273 right_padding,
14274 width: line_gutter_width + left_padding + right_padding,
14275 margin: -descent,
14276 git_blame_entries_width,
14277 }
14278 }
14279
14280 pub fn render_crease_toggle(
14281 &self,
14282 buffer_row: MultiBufferRow,
14283 row_contains_cursor: bool,
14284 editor: View<Editor>,
14285 cx: &mut WindowContext,
14286 ) -> Option<AnyElement> {
14287 let folded = self.is_line_folded(buffer_row);
14288 let mut is_foldable = false;
14289
14290 if let Some(crease) = self
14291 .crease_snapshot
14292 .query_row(buffer_row, &self.buffer_snapshot)
14293 {
14294 is_foldable = true;
14295 match crease {
14296 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14297 if let Some(render_toggle) = render_toggle {
14298 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14299 if folded {
14300 editor.update(cx, |editor, cx| {
14301 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14302 });
14303 } else {
14304 editor.update(cx, |editor, cx| {
14305 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14306 });
14307 }
14308 });
14309 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14310 }
14311 }
14312 }
14313 }
14314
14315 is_foldable |= self.starts_indent(buffer_row);
14316
14317 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14318 Some(
14319 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14320 .selected(folded)
14321 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14322 if folded {
14323 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14324 } else {
14325 this.fold_at(&FoldAt { buffer_row }, cx);
14326 }
14327 }))
14328 .into_any_element(),
14329 )
14330 } else {
14331 None
14332 }
14333 }
14334
14335 pub fn render_crease_trailer(
14336 &self,
14337 buffer_row: MultiBufferRow,
14338 cx: &mut WindowContext,
14339 ) -> Option<AnyElement> {
14340 let folded = self.is_line_folded(buffer_row);
14341 if let Crease::Inline { render_trailer, .. } = self
14342 .crease_snapshot
14343 .query_row(buffer_row, &self.buffer_snapshot)?
14344 {
14345 let render_trailer = render_trailer.as_ref()?;
14346 Some(render_trailer(buffer_row, folded, cx))
14347 } else {
14348 None
14349 }
14350 }
14351}
14352
14353impl Deref for EditorSnapshot {
14354 type Target = DisplaySnapshot;
14355
14356 fn deref(&self) -> &Self::Target {
14357 &self.display_snapshot
14358 }
14359}
14360
14361#[derive(Clone, Debug, PartialEq, Eq)]
14362pub enum EditorEvent {
14363 InputIgnored {
14364 text: Arc<str>,
14365 },
14366 InputHandled {
14367 utf16_range_to_replace: Option<Range<isize>>,
14368 text: Arc<str>,
14369 },
14370 ExcerptsAdded {
14371 buffer: Model<Buffer>,
14372 predecessor: ExcerptId,
14373 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14374 },
14375 ExcerptsRemoved {
14376 ids: Vec<ExcerptId>,
14377 },
14378 ExcerptsEdited {
14379 ids: Vec<ExcerptId>,
14380 },
14381 ExcerptsExpanded {
14382 ids: Vec<ExcerptId>,
14383 },
14384 BufferEdited,
14385 Edited {
14386 transaction_id: clock::Lamport,
14387 },
14388 Reparsed(BufferId),
14389 Focused,
14390 FocusedIn,
14391 Blurred,
14392 DirtyChanged,
14393 Saved,
14394 TitleChanged,
14395 DiffBaseChanged,
14396 SelectionsChanged {
14397 local: bool,
14398 },
14399 ScrollPositionChanged {
14400 local: bool,
14401 autoscroll: bool,
14402 },
14403 Closed,
14404 TransactionUndone {
14405 transaction_id: clock::Lamport,
14406 },
14407 TransactionBegun {
14408 transaction_id: clock::Lamport,
14409 },
14410 Reloaded,
14411 CursorShapeChanged,
14412}
14413
14414impl EventEmitter<EditorEvent> for Editor {}
14415
14416impl FocusableView for Editor {
14417 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14418 self.focus_handle.clone()
14419 }
14420}
14421
14422impl Render for Editor {
14423 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14424 let settings = ThemeSettings::get_global(cx);
14425
14426 let mut text_style = match self.mode {
14427 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14428 color: cx.theme().colors().editor_foreground,
14429 font_family: settings.ui_font.family.clone(),
14430 font_features: settings.ui_font.features.clone(),
14431 font_fallbacks: settings.ui_font.fallbacks.clone(),
14432 font_size: rems(0.875).into(),
14433 font_weight: settings.ui_font.weight,
14434 line_height: relative(settings.buffer_line_height.value()),
14435 ..Default::default()
14436 },
14437 EditorMode::Full => TextStyle {
14438 color: cx.theme().colors().editor_foreground,
14439 font_family: settings.buffer_font.family.clone(),
14440 font_features: settings.buffer_font.features.clone(),
14441 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14442 font_size: settings.buffer_font_size(cx).into(),
14443 font_weight: settings.buffer_font.weight,
14444 line_height: relative(settings.buffer_line_height.value()),
14445 ..Default::default()
14446 },
14447 };
14448 if let Some(text_style_refinement) = &self.text_style_refinement {
14449 text_style.refine(text_style_refinement)
14450 }
14451
14452 let background = match self.mode {
14453 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14454 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14455 EditorMode::Full => cx.theme().colors().editor_background,
14456 };
14457
14458 EditorElement::new(
14459 cx.view(),
14460 EditorStyle {
14461 background,
14462 local_player: cx.theme().players().local(),
14463 text: text_style,
14464 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14465 syntax: cx.theme().syntax().clone(),
14466 status: cx.theme().status().clone(),
14467 inlay_hints_style: make_inlay_hints_style(cx),
14468 suggestions_style: HighlightStyle {
14469 color: Some(cx.theme().status().predictive),
14470 ..HighlightStyle::default()
14471 },
14472 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14473 },
14474 )
14475 }
14476}
14477
14478impl ViewInputHandler for Editor {
14479 fn text_for_range(
14480 &mut self,
14481 range_utf16: Range<usize>,
14482 adjusted_range: &mut Option<Range<usize>>,
14483 cx: &mut ViewContext<Self>,
14484 ) -> Option<String> {
14485 let snapshot = self.buffer.read(cx).read(cx);
14486 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14487 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14488 if (start.0..end.0) != range_utf16 {
14489 adjusted_range.replace(start.0..end.0);
14490 }
14491 Some(snapshot.text_for_range(start..end).collect())
14492 }
14493
14494 fn selected_text_range(
14495 &mut self,
14496 ignore_disabled_input: bool,
14497 cx: &mut ViewContext<Self>,
14498 ) -> Option<UTF16Selection> {
14499 // Prevent the IME menu from appearing when holding down an alphabetic key
14500 // while input is disabled.
14501 if !ignore_disabled_input && !self.input_enabled {
14502 return None;
14503 }
14504
14505 let selection = self.selections.newest::<OffsetUtf16>(cx);
14506 let range = selection.range();
14507
14508 Some(UTF16Selection {
14509 range: range.start.0..range.end.0,
14510 reversed: selection.reversed,
14511 })
14512 }
14513
14514 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14515 let snapshot = self.buffer.read(cx).read(cx);
14516 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14517 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14518 }
14519
14520 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14521 self.clear_highlights::<InputComposition>(cx);
14522 self.ime_transaction.take();
14523 }
14524
14525 fn replace_text_in_range(
14526 &mut self,
14527 range_utf16: Option<Range<usize>>,
14528 text: &str,
14529 cx: &mut ViewContext<Self>,
14530 ) {
14531 if !self.input_enabled {
14532 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14533 return;
14534 }
14535
14536 self.transact(cx, |this, cx| {
14537 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14538 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14539 Some(this.selection_replacement_ranges(range_utf16, cx))
14540 } else {
14541 this.marked_text_ranges(cx)
14542 };
14543
14544 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14545 let newest_selection_id = this.selections.newest_anchor().id;
14546 this.selections
14547 .all::<OffsetUtf16>(cx)
14548 .iter()
14549 .zip(ranges_to_replace.iter())
14550 .find_map(|(selection, range)| {
14551 if selection.id == newest_selection_id {
14552 Some(
14553 (range.start.0 as isize - selection.head().0 as isize)
14554 ..(range.end.0 as isize - selection.head().0 as isize),
14555 )
14556 } else {
14557 None
14558 }
14559 })
14560 });
14561
14562 cx.emit(EditorEvent::InputHandled {
14563 utf16_range_to_replace: range_to_replace,
14564 text: text.into(),
14565 });
14566
14567 if let Some(new_selected_ranges) = new_selected_ranges {
14568 this.change_selections(None, cx, |selections| {
14569 selections.select_ranges(new_selected_ranges)
14570 });
14571 this.backspace(&Default::default(), cx);
14572 }
14573
14574 this.handle_input(text, cx);
14575 });
14576
14577 if let Some(transaction) = self.ime_transaction {
14578 self.buffer.update(cx, |buffer, cx| {
14579 buffer.group_until_transaction(transaction, cx);
14580 });
14581 }
14582
14583 self.unmark_text(cx);
14584 }
14585
14586 fn replace_and_mark_text_in_range(
14587 &mut self,
14588 range_utf16: Option<Range<usize>>,
14589 text: &str,
14590 new_selected_range_utf16: Option<Range<usize>>,
14591 cx: &mut ViewContext<Self>,
14592 ) {
14593 if !self.input_enabled {
14594 return;
14595 }
14596
14597 let transaction = self.transact(cx, |this, cx| {
14598 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14599 let snapshot = this.buffer.read(cx).read(cx);
14600 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14601 for marked_range in &mut marked_ranges {
14602 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14603 marked_range.start.0 += relative_range_utf16.start;
14604 marked_range.start =
14605 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14606 marked_range.end =
14607 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14608 }
14609 }
14610 Some(marked_ranges)
14611 } else if let Some(range_utf16) = range_utf16 {
14612 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14613 Some(this.selection_replacement_ranges(range_utf16, cx))
14614 } else {
14615 None
14616 };
14617
14618 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14619 let newest_selection_id = this.selections.newest_anchor().id;
14620 this.selections
14621 .all::<OffsetUtf16>(cx)
14622 .iter()
14623 .zip(ranges_to_replace.iter())
14624 .find_map(|(selection, range)| {
14625 if selection.id == newest_selection_id {
14626 Some(
14627 (range.start.0 as isize - selection.head().0 as isize)
14628 ..(range.end.0 as isize - selection.head().0 as isize),
14629 )
14630 } else {
14631 None
14632 }
14633 })
14634 });
14635
14636 cx.emit(EditorEvent::InputHandled {
14637 utf16_range_to_replace: range_to_replace,
14638 text: text.into(),
14639 });
14640
14641 if let Some(ranges) = ranges_to_replace {
14642 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14643 }
14644
14645 let marked_ranges = {
14646 let snapshot = this.buffer.read(cx).read(cx);
14647 this.selections
14648 .disjoint_anchors()
14649 .iter()
14650 .map(|selection| {
14651 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14652 })
14653 .collect::<Vec<_>>()
14654 };
14655
14656 if text.is_empty() {
14657 this.unmark_text(cx);
14658 } else {
14659 this.highlight_text::<InputComposition>(
14660 marked_ranges.clone(),
14661 HighlightStyle {
14662 underline: Some(UnderlineStyle {
14663 thickness: px(1.),
14664 color: None,
14665 wavy: false,
14666 }),
14667 ..Default::default()
14668 },
14669 cx,
14670 );
14671 }
14672
14673 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14674 let use_autoclose = this.use_autoclose;
14675 let use_auto_surround = this.use_auto_surround;
14676 this.set_use_autoclose(false);
14677 this.set_use_auto_surround(false);
14678 this.handle_input(text, cx);
14679 this.set_use_autoclose(use_autoclose);
14680 this.set_use_auto_surround(use_auto_surround);
14681
14682 if let Some(new_selected_range) = new_selected_range_utf16 {
14683 let snapshot = this.buffer.read(cx).read(cx);
14684 let new_selected_ranges = marked_ranges
14685 .into_iter()
14686 .map(|marked_range| {
14687 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14688 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14689 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14690 snapshot.clip_offset_utf16(new_start, Bias::Left)
14691 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14692 })
14693 .collect::<Vec<_>>();
14694
14695 drop(snapshot);
14696 this.change_selections(None, cx, |selections| {
14697 selections.select_ranges(new_selected_ranges)
14698 });
14699 }
14700 });
14701
14702 self.ime_transaction = self.ime_transaction.or(transaction);
14703 if let Some(transaction) = self.ime_transaction {
14704 self.buffer.update(cx, |buffer, cx| {
14705 buffer.group_until_transaction(transaction, cx);
14706 });
14707 }
14708
14709 if self.text_highlights::<InputComposition>(cx).is_none() {
14710 self.ime_transaction.take();
14711 }
14712 }
14713
14714 fn bounds_for_range(
14715 &mut self,
14716 range_utf16: Range<usize>,
14717 element_bounds: gpui::Bounds<Pixels>,
14718 cx: &mut ViewContext<Self>,
14719 ) -> Option<gpui::Bounds<Pixels>> {
14720 let text_layout_details = self.text_layout_details(cx);
14721 let style = &text_layout_details.editor_style;
14722 let font_id = cx.text_system().resolve_font(&style.text.font());
14723 let font_size = style.text.font_size.to_pixels(cx.rem_size());
14724 let line_height = style.text.line_height_in_pixels(cx.rem_size());
14725
14726 let em_width = cx
14727 .text_system()
14728 .typographic_bounds(font_id, font_size, 'm')
14729 .unwrap()
14730 .size
14731 .width;
14732
14733 let snapshot = self.snapshot(cx);
14734 let scroll_position = snapshot.scroll_position();
14735 let scroll_left = scroll_position.x * em_width;
14736
14737 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14738 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14739 + self.gutter_dimensions.width
14740 + self.gutter_dimensions.margin;
14741 let y = line_height * (start.row().as_f32() - scroll_position.y);
14742
14743 Some(Bounds {
14744 origin: element_bounds.origin + point(x, y),
14745 size: size(em_width, line_height),
14746 })
14747 }
14748}
14749
14750trait SelectionExt {
14751 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14752 fn spanned_rows(
14753 &self,
14754 include_end_if_at_line_start: bool,
14755 map: &DisplaySnapshot,
14756 ) -> Range<MultiBufferRow>;
14757}
14758
14759impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14760 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14761 let start = self
14762 .start
14763 .to_point(&map.buffer_snapshot)
14764 .to_display_point(map);
14765 let end = self
14766 .end
14767 .to_point(&map.buffer_snapshot)
14768 .to_display_point(map);
14769 if self.reversed {
14770 end..start
14771 } else {
14772 start..end
14773 }
14774 }
14775
14776 fn spanned_rows(
14777 &self,
14778 include_end_if_at_line_start: bool,
14779 map: &DisplaySnapshot,
14780 ) -> Range<MultiBufferRow> {
14781 let start = self.start.to_point(&map.buffer_snapshot);
14782 let mut end = self.end.to_point(&map.buffer_snapshot);
14783 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14784 end.row -= 1;
14785 }
14786
14787 let buffer_start = map.prev_line_boundary(start).0;
14788 let buffer_end = map.next_line_boundary(end).0;
14789 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14790 }
14791}
14792
14793impl<T: InvalidationRegion> InvalidationStack<T> {
14794 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14795 where
14796 S: Clone + ToOffset,
14797 {
14798 while let Some(region) = self.last() {
14799 let all_selections_inside_invalidation_ranges =
14800 if selections.len() == region.ranges().len() {
14801 selections
14802 .iter()
14803 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14804 .all(|(selection, invalidation_range)| {
14805 let head = selection.head().to_offset(buffer);
14806 invalidation_range.start <= head && invalidation_range.end >= head
14807 })
14808 } else {
14809 false
14810 };
14811
14812 if all_selections_inside_invalidation_ranges {
14813 break;
14814 } else {
14815 self.pop();
14816 }
14817 }
14818 }
14819}
14820
14821impl<T> Default for InvalidationStack<T> {
14822 fn default() -> Self {
14823 Self(Default::default())
14824 }
14825}
14826
14827impl<T> Deref for InvalidationStack<T> {
14828 type Target = Vec<T>;
14829
14830 fn deref(&self) -> &Self::Target {
14831 &self.0
14832 }
14833}
14834
14835impl<T> DerefMut for InvalidationStack<T> {
14836 fn deref_mut(&mut self) -> &mut Self::Target {
14837 &mut self.0
14838 }
14839}
14840
14841impl InvalidationRegion for SnippetState {
14842 fn ranges(&self) -> &[Range<Anchor>] {
14843 &self.ranges[self.active_index]
14844 }
14845}
14846
14847pub fn diagnostic_block_renderer(
14848 diagnostic: Diagnostic,
14849 max_message_rows: Option<u8>,
14850 allow_closing: bool,
14851 _is_valid: bool,
14852) -> RenderBlock {
14853 let (text_without_backticks, code_ranges) =
14854 highlight_diagnostic_message(&diagnostic, max_message_rows);
14855
14856 Arc::new(move |cx: &mut BlockContext| {
14857 let group_id: SharedString = cx.block_id.to_string().into();
14858
14859 let mut text_style = cx.text_style().clone();
14860 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14861 let theme_settings = ThemeSettings::get_global(cx);
14862 text_style.font_family = theme_settings.buffer_font.family.clone();
14863 text_style.font_style = theme_settings.buffer_font.style;
14864 text_style.font_features = theme_settings.buffer_font.features.clone();
14865 text_style.font_weight = theme_settings.buffer_font.weight;
14866
14867 let multi_line_diagnostic = diagnostic.message.contains('\n');
14868
14869 let buttons = |diagnostic: &Diagnostic| {
14870 if multi_line_diagnostic {
14871 v_flex()
14872 } else {
14873 h_flex()
14874 }
14875 .when(allow_closing, |div| {
14876 div.children(diagnostic.is_primary.then(|| {
14877 IconButton::new("close-block", IconName::XCircle)
14878 .icon_color(Color::Muted)
14879 .size(ButtonSize::Compact)
14880 .style(ButtonStyle::Transparent)
14881 .visible_on_hover(group_id.clone())
14882 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14883 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14884 }))
14885 })
14886 .child(
14887 IconButton::new("copy-block", IconName::Copy)
14888 .icon_color(Color::Muted)
14889 .size(ButtonSize::Compact)
14890 .style(ButtonStyle::Transparent)
14891 .visible_on_hover(group_id.clone())
14892 .on_click({
14893 let message = diagnostic.message.clone();
14894 move |_click, cx| {
14895 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14896 }
14897 })
14898 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14899 )
14900 };
14901
14902 let icon_size = buttons(&diagnostic)
14903 .into_any_element()
14904 .layout_as_root(AvailableSpace::min_size(), cx);
14905
14906 h_flex()
14907 .id(cx.block_id)
14908 .group(group_id.clone())
14909 .relative()
14910 .size_full()
14911 .block_mouse_down()
14912 .pl(cx.gutter_dimensions.width)
14913 .w(cx.max_width - cx.gutter_dimensions.full_width())
14914 .child(
14915 div()
14916 .flex()
14917 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14918 .flex_shrink(),
14919 )
14920 .child(buttons(&diagnostic))
14921 .child(div().flex().flex_shrink_0().child(
14922 StyledText::new(text_without_backticks.clone()).with_highlights(
14923 &text_style,
14924 code_ranges.iter().map(|range| {
14925 (
14926 range.clone(),
14927 HighlightStyle {
14928 font_weight: Some(FontWeight::BOLD),
14929 ..Default::default()
14930 },
14931 )
14932 }),
14933 ),
14934 ))
14935 .into_any_element()
14936 })
14937}
14938
14939pub fn highlight_diagnostic_message(
14940 diagnostic: &Diagnostic,
14941 mut max_message_rows: Option<u8>,
14942) -> (SharedString, Vec<Range<usize>>) {
14943 let mut text_without_backticks = String::new();
14944 let mut code_ranges = Vec::new();
14945
14946 if let Some(source) = &diagnostic.source {
14947 text_without_backticks.push_str(source);
14948 code_ranges.push(0..source.len());
14949 text_without_backticks.push_str(": ");
14950 }
14951
14952 let mut prev_offset = 0;
14953 let mut in_code_block = false;
14954 let has_row_limit = max_message_rows.is_some();
14955 let mut newline_indices = diagnostic
14956 .message
14957 .match_indices('\n')
14958 .filter(|_| has_row_limit)
14959 .map(|(ix, _)| ix)
14960 .fuse()
14961 .peekable();
14962
14963 for (quote_ix, _) in diagnostic
14964 .message
14965 .match_indices('`')
14966 .chain([(diagnostic.message.len(), "")])
14967 {
14968 let mut first_newline_ix = None;
14969 let mut last_newline_ix = None;
14970 while let Some(newline_ix) = newline_indices.peek() {
14971 if *newline_ix < quote_ix {
14972 if first_newline_ix.is_none() {
14973 first_newline_ix = Some(*newline_ix);
14974 }
14975 last_newline_ix = Some(*newline_ix);
14976
14977 if let Some(rows_left) = &mut max_message_rows {
14978 if *rows_left == 0 {
14979 break;
14980 } else {
14981 *rows_left -= 1;
14982 }
14983 }
14984 let _ = newline_indices.next();
14985 } else {
14986 break;
14987 }
14988 }
14989 let prev_len = text_without_backticks.len();
14990 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14991 text_without_backticks.push_str(new_text);
14992 if in_code_block {
14993 code_ranges.push(prev_len..text_without_backticks.len());
14994 }
14995 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14996 in_code_block = !in_code_block;
14997 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14998 text_without_backticks.push_str("...");
14999 break;
15000 }
15001 }
15002
15003 (text_without_backticks.into(), code_ranges)
15004}
15005
15006fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
15007 match severity {
15008 DiagnosticSeverity::ERROR => colors.error,
15009 DiagnosticSeverity::WARNING => colors.warning,
15010 DiagnosticSeverity::INFORMATION => colors.info,
15011 DiagnosticSeverity::HINT => colors.info,
15012 _ => colors.ignored,
15013 }
15014}
15015
15016pub fn styled_runs_for_code_label<'a>(
15017 label: &'a CodeLabel,
15018 syntax_theme: &'a theme::SyntaxTheme,
15019) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
15020 let fade_out = HighlightStyle {
15021 fade_out: Some(0.35),
15022 ..Default::default()
15023 };
15024
15025 let mut prev_end = label.filter_range.end;
15026 label
15027 .runs
15028 .iter()
15029 .enumerate()
15030 .flat_map(move |(ix, (range, highlight_id))| {
15031 let style = if let Some(style) = highlight_id.style(syntax_theme) {
15032 style
15033 } else {
15034 return Default::default();
15035 };
15036 let mut muted_style = style;
15037 muted_style.highlight(fade_out);
15038
15039 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
15040 if range.start >= label.filter_range.end {
15041 if range.start > prev_end {
15042 runs.push((prev_end..range.start, fade_out));
15043 }
15044 runs.push((range.clone(), muted_style));
15045 } else if range.end <= label.filter_range.end {
15046 runs.push((range.clone(), style));
15047 } else {
15048 runs.push((range.start..label.filter_range.end, style));
15049 runs.push((label.filter_range.end..range.end, muted_style));
15050 }
15051 prev_end = cmp::max(prev_end, range.end);
15052
15053 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
15054 runs.push((prev_end..label.text.len(), fade_out));
15055 }
15056
15057 runs
15058 })
15059}
15060
15061pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
15062 let mut prev_index = 0;
15063 let mut prev_codepoint: Option<char> = None;
15064 text.char_indices()
15065 .chain([(text.len(), '\0')])
15066 .filter_map(move |(index, codepoint)| {
15067 let prev_codepoint = prev_codepoint.replace(codepoint)?;
15068 let is_boundary = index == text.len()
15069 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
15070 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
15071 if is_boundary {
15072 let chunk = &text[prev_index..index];
15073 prev_index = index;
15074 Some(chunk)
15075 } else {
15076 None
15077 }
15078 })
15079}
15080
15081pub trait RangeToAnchorExt: Sized {
15082 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
15083
15084 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
15085 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
15086 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
15087 }
15088}
15089
15090impl<T: ToOffset> RangeToAnchorExt for Range<T> {
15091 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
15092 let start_offset = self.start.to_offset(snapshot);
15093 let end_offset = self.end.to_offset(snapshot);
15094 if start_offset == end_offset {
15095 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
15096 } else {
15097 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
15098 }
15099 }
15100}
15101
15102pub trait RowExt {
15103 fn as_f32(&self) -> f32;
15104
15105 fn next_row(&self) -> Self;
15106
15107 fn previous_row(&self) -> Self;
15108
15109 fn minus(&self, other: Self) -> u32;
15110}
15111
15112impl RowExt for DisplayRow {
15113 fn as_f32(&self) -> f32 {
15114 self.0 as f32
15115 }
15116
15117 fn next_row(&self) -> Self {
15118 Self(self.0 + 1)
15119 }
15120
15121 fn previous_row(&self) -> Self {
15122 Self(self.0.saturating_sub(1))
15123 }
15124
15125 fn minus(&self, other: Self) -> u32 {
15126 self.0 - other.0
15127 }
15128}
15129
15130impl RowExt for MultiBufferRow {
15131 fn as_f32(&self) -> f32 {
15132 self.0 as f32
15133 }
15134
15135 fn next_row(&self) -> Self {
15136 Self(self.0 + 1)
15137 }
15138
15139 fn previous_row(&self) -> Self {
15140 Self(self.0.saturating_sub(1))
15141 }
15142
15143 fn minus(&self, other: Self) -> u32 {
15144 self.0 - other.0
15145 }
15146}
15147
15148trait RowRangeExt {
15149 type Row;
15150
15151 fn len(&self) -> usize;
15152
15153 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15154}
15155
15156impl RowRangeExt for Range<MultiBufferRow> {
15157 type Row = MultiBufferRow;
15158
15159 fn len(&self) -> usize {
15160 (self.end.0 - self.start.0) as usize
15161 }
15162
15163 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15164 (self.start.0..self.end.0).map(MultiBufferRow)
15165 }
15166}
15167
15168impl RowRangeExt for Range<DisplayRow> {
15169 type Row = DisplayRow;
15170
15171 fn len(&self) -> usize {
15172 (self.end.0 - self.start.0) as usize
15173 }
15174
15175 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15176 (self.start.0..self.end.0).map(DisplayRow)
15177 }
15178}
15179
15180fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15181 if hunk.diff_base_byte_range.is_empty() {
15182 DiffHunkStatus::Added
15183 } else if hunk.row_range.is_empty() {
15184 DiffHunkStatus::Removed
15185 } else {
15186 DiffHunkStatus::Modified
15187 }
15188}
15189
15190/// If select range has more than one line, we
15191/// just point the cursor to range.start.
15192fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15193 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15194 range
15195 } else {
15196 range.start..range.start
15197 }
15198}
15199
15200pub struct KillRing(ClipboardItem);
15201impl Global for KillRing {}
15202
15203const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);