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, DiffMap, DiffMapSnapshot};
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 git::project_diff::init(cx);
331}
332
333pub struct SearchWithinRange;
334
335trait InvalidationRegion {
336 fn ranges(&self) -> &[Range<Anchor>];
337}
338
339#[derive(Clone, Debug, PartialEq)]
340pub enum SelectPhase {
341 Begin {
342 position: DisplayPoint,
343 add: bool,
344 click_count: usize,
345 },
346 BeginColumnar {
347 position: DisplayPoint,
348 reset: bool,
349 goal_column: u32,
350 },
351 Extend {
352 position: DisplayPoint,
353 click_count: usize,
354 },
355 Update {
356 position: DisplayPoint,
357 goal_column: u32,
358 scroll_delta: gpui::Point<f32>,
359 },
360 End,
361}
362
363#[derive(Clone, Debug)]
364pub enum SelectMode {
365 Character,
366 Word(Range<Anchor>),
367 Line(Range<Anchor>),
368 All,
369}
370
371#[derive(Copy, Clone, PartialEq, Eq, Debug)]
372pub enum EditorMode {
373 SingleLine { auto_width: bool },
374 AutoHeight { max_lines: usize },
375 Full,
376}
377
378#[derive(Copy, Clone, Debug)]
379pub enum SoftWrap {
380 /// Prefer not to wrap at all.
381 ///
382 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
383 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
384 GitDiff,
385 /// Prefer a single line generally, unless an overly long line is encountered.
386 None,
387 /// Soft wrap lines that exceed the editor width.
388 EditorWidth,
389 /// Soft wrap lines at the preferred line length.
390 Column(u32),
391 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
392 Bounded(u32),
393}
394
395#[derive(Clone)]
396pub struct EditorStyle {
397 pub background: Hsla,
398 pub local_player: PlayerColor,
399 pub text: TextStyle,
400 pub scrollbar_width: Pixels,
401 pub syntax: Arc<SyntaxTheme>,
402 pub status: StatusColors,
403 pub inlay_hints_style: HighlightStyle,
404 pub suggestions_style: HighlightStyle,
405 pub unnecessary_code_fade: f32,
406}
407
408impl Default for EditorStyle {
409 fn default() -> Self {
410 Self {
411 background: Hsla::default(),
412 local_player: PlayerColor::default(),
413 text: TextStyle::default(),
414 scrollbar_width: Pixels::default(),
415 syntax: Default::default(),
416 // HACK: Status colors don't have a real default.
417 // We should look into removing the status colors from the editor
418 // style and retrieve them directly from the theme.
419 status: StatusColors::dark(),
420 inlay_hints_style: HighlightStyle::default(),
421 suggestions_style: HighlightStyle::default(),
422 unnecessary_code_fade: Default::default(),
423 }
424 }
425}
426
427pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
428 let show_background = language_settings::language_settings(None, None, cx)
429 .inlay_hints
430 .show_background;
431
432 HighlightStyle {
433 color: Some(cx.theme().status().hint),
434 background_color: show_background.then(|| cx.theme().status().hint_background),
435 ..HighlightStyle::default()
436 }
437}
438
439type CompletionId = usize;
440
441#[derive(Clone, Debug)]
442struct CompletionState {
443 // render_inlay_ids represents the inlay hints that are inserted
444 // for rendering the inline completions. They may be discontinuous
445 // in the event that the completion provider returns some intersection
446 // with the existing content.
447 render_inlay_ids: Vec<InlayId>,
448 // text is the resulting rope that is inserted when the user accepts a completion.
449 text: Rope,
450 // position is the position of the cursor when the completion was triggered.
451 position: multi_buffer::Anchor,
452 // delete_range is the range of text that this completion state covers.
453 // if the completion is accepted, this range should be deleted.
454 delete_range: Option<Range<multi_buffer::Anchor>>,
455}
456
457#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
458struct EditorActionId(usize);
459
460impl EditorActionId {
461 pub fn post_inc(&mut self) -> Self {
462 let answer = self.0;
463
464 *self = Self(answer + 1);
465
466 Self(answer)
467 }
468}
469
470// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
471// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
472
473type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
474type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
475
476#[derive(Default)]
477struct ScrollbarMarkerState {
478 scrollbar_size: Size<Pixels>,
479 dirty: bool,
480 markers: Arc<[PaintQuad]>,
481 pending_refresh: Option<Task<Result<()>>>,
482}
483
484impl ScrollbarMarkerState {
485 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
486 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
487 }
488}
489
490#[derive(Clone, Debug)]
491struct RunnableTasks {
492 templates: Vec<(TaskSourceKind, TaskTemplate)>,
493 offset: MultiBufferOffset,
494 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
495 column: u32,
496 // Values of all named captures, including those starting with '_'
497 extra_variables: HashMap<String, String>,
498 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
499 context_range: Range<BufferOffset>,
500}
501
502impl RunnableTasks {
503 fn resolve<'a>(
504 &'a self,
505 cx: &'a task::TaskContext,
506 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
507 self.templates.iter().filter_map(|(kind, template)| {
508 template
509 .resolve_task(&kind.to_id_base(), cx)
510 .map(|task| (kind.clone(), task))
511 })
512 }
513}
514
515#[derive(Clone)]
516struct ResolvedTasks {
517 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
518 position: Anchor,
519}
520#[derive(Copy, Clone, Debug)]
521struct MultiBufferOffset(usize);
522#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
523struct BufferOffset(usize);
524
525// Addons allow storing per-editor state in other crates (e.g. Vim)
526pub trait Addon: 'static {
527 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
528
529 fn to_any(&self) -> &dyn std::any::Any;
530}
531
532#[derive(Debug, Copy, Clone, PartialEq, Eq)]
533pub enum IsVimMode {
534 Yes,
535 No,
536}
537
538/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
539///
540/// See the [module level documentation](self) for more information.
541pub struct Editor {
542 focus_handle: FocusHandle,
543 last_focused_descendant: Option<WeakFocusHandle>,
544 /// The text buffer being edited
545 buffer: Model<MultiBuffer>,
546 /// Map of how text in the buffer should be displayed.
547 /// Handles soft wraps, folds, fake inlay text insertions, etc.
548 pub display_map: Model<DisplayMap>,
549 pub selections: SelectionsCollection,
550 pub scroll_manager: ScrollManager,
551 /// When inline assist editors are linked, they all render cursors because
552 /// typing enters text into each of them, even the ones that aren't focused.
553 pub(crate) show_cursor_when_unfocused: bool,
554 columnar_selection_tail: Option<Anchor>,
555 add_selections_state: Option<AddSelectionsState>,
556 select_next_state: Option<SelectNextState>,
557 select_prev_state: Option<SelectNextState>,
558 selection_history: SelectionHistory,
559 autoclose_regions: Vec<AutocloseRegion>,
560 snippet_stack: InvalidationStack<SnippetState>,
561 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
562 ime_transaction: Option<TransactionId>,
563 active_diagnostics: Option<ActiveDiagnosticGroup>,
564 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
565
566 project: Option<Model<Project>>,
567 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
568 completion_provider: Option<Box<dyn CompletionProvider>>,
569 collaboration_hub: Option<Box<dyn CollaborationHub>>,
570 blink_manager: Model<BlinkManager>,
571 show_cursor_names: bool,
572 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
573 pub show_local_selections: bool,
574 mode: EditorMode,
575 show_breadcrumbs: bool,
576 show_gutter: bool,
577 show_line_numbers: Option<bool>,
578 use_relative_line_numbers: Option<bool>,
579 show_git_diff_gutter: Option<bool>,
580 show_code_actions: Option<bool>,
581 show_runnables: Option<bool>,
582 show_wrap_guides: Option<bool>,
583 show_indent_guides: Option<bool>,
584 placeholder_text: Option<Arc<str>>,
585 highlight_order: usize,
586 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
587 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
588 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
589 scrollbar_marker_state: ScrollbarMarkerState,
590 active_indent_guides_state: ActiveIndentGuidesState,
591 nav_history: Option<ItemNavHistory>,
592 context_menu: RwLock<Option<ContextMenu>>,
593 mouse_context_menu: Option<MouseContextMenu>,
594 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
595 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
596 signature_help_state: SignatureHelpState,
597 auto_signature_help: Option<bool>,
598 find_all_references_task_sources: Vec<Anchor>,
599 next_completion_id: CompletionId,
600 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
601 code_actions_task: Option<Task<Result<()>>>,
602 document_highlights_task: Option<Task<()>>,
603 linked_editing_range_task: Option<Task<Option<()>>>,
604 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
605 pending_rename: Option<RenameState>,
606 searchable: bool,
607 cursor_shape: CursorShape,
608 current_line_highlight: Option<CurrentLineHighlight>,
609 collapse_matches: bool,
610 autoindent_mode: Option<AutoindentMode>,
611 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
612 input_enabled: bool,
613 use_modal_editing: bool,
614 read_only: bool,
615 leader_peer_id: Option<PeerId>,
616 remote_id: Option<ViewId>,
617 hover_state: HoverState,
618 gutter_hovered: bool,
619 hovered_link_state: Option<HoveredLinkState>,
620 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
621 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
622 active_inline_completion: Option<CompletionState>,
623 // enable_inline_completions is a switch that Vim can use to disable
624 // inline completions based on its mode.
625 enable_inline_completions: bool,
626 show_inline_completions_override: Option<bool>,
627 inlay_hint_cache: InlayHintCache,
628 diff_map: DiffMap,
629 next_inlay_id: usize,
630 _subscriptions: Vec<Subscription>,
631 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
632 gutter_dimensions: GutterDimensions,
633 style: Option<EditorStyle>,
634 text_style_refinement: Option<TextStyleRefinement>,
635 next_editor_action_id: EditorActionId,
636 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
637 use_autoclose: bool,
638 use_auto_surround: bool,
639 auto_replace_emoji_shortcode: bool,
640 show_git_blame_gutter: bool,
641 show_git_blame_inline: bool,
642 show_git_blame_inline_delay_task: Option<Task<()>>,
643 git_blame_inline_enabled: bool,
644 serialize_dirty_buffers: bool,
645 show_selection_menu: Option<bool>,
646 blame: Option<Model<GitBlame>>,
647 blame_subscription: Option<Subscription>,
648 custom_context_menu: Option<
649 Box<
650 dyn 'static
651 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
652 >,
653 >,
654 last_bounds: Option<Bounds<Pixels>>,
655 expect_bounds_change: Option<Bounds<Pixels>>,
656 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
657 tasks_update_task: Option<Task<()>>,
658 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
659 breadcrumb_header: Option<String>,
660 focused_block: Option<FocusedBlock>,
661 next_scroll_position: NextScrollCursorCenterTopBottom,
662 addons: HashMap<TypeId, Box<dyn Addon>>,
663 _scroll_cursor_center_top_bottom_task: Task<()>,
664}
665
666#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
667enum NextScrollCursorCenterTopBottom {
668 #[default]
669 Center,
670 Top,
671 Bottom,
672}
673
674impl NextScrollCursorCenterTopBottom {
675 fn next(&self) -> Self {
676 match self {
677 Self::Center => Self::Top,
678 Self::Top => Self::Bottom,
679 Self::Bottom => Self::Center,
680 }
681 }
682}
683
684#[derive(Clone)]
685pub struct EditorSnapshot {
686 pub mode: EditorMode,
687 show_gutter: bool,
688 show_line_numbers: Option<bool>,
689 show_git_diff_gutter: Option<bool>,
690 show_code_actions: Option<bool>,
691 show_runnables: Option<bool>,
692 git_blame_gutter_max_author_length: Option<usize>,
693 pub display_snapshot: DisplaySnapshot,
694 pub placeholder_text: Option<Arc<str>>,
695 diff_map: DiffMapSnapshot,
696 is_focused: bool,
697 scroll_anchor: ScrollAnchor,
698 ongoing_scroll: OngoingScroll,
699 current_line_highlight: CurrentLineHighlight,
700 gutter_hovered: bool,
701}
702
703const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
704
705#[derive(Default, Debug, Clone, Copy)]
706pub struct GutterDimensions {
707 pub left_padding: Pixels,
708 pub right_padding: Pixels,
709 pub width: Pixels,
710 pub margin: Pixels,
711 pub git_blame_entries_width: Option<Pixels>,
712}
713
714impl GutterDimensions {
715 /// The full width of the space taken up by the gutter.
716 pub fn full_width(&self) -> Pixels {
717 self.margin + self.width
718 }
719
720 /// The width of the space reserved for the fold indicators,
721 /// use alongside 'justify_end' and `gutter_width` to
722 /// right align content with the line numbers
723 pub fn fold_area_width(&self) -> Pixels {
724 self.margin + self.right_padding
725 }
726}
727
728#[derive(Debug)]
729pub struct RemoteSelection {
730 pub replica_id: ReplicaId,
731 pub selection: Selection<Anchor>,
732 pub cursor_shape: CursorShape,
733 pub peer_id: PeerId,
734 pub line_mode: bool,
735 pub participant_index: Option<ParticipantIndex>,
736 pub user_name: Option<SharedString>,
737}
738
739#[derive(Clone, Debug)]
740struct SelectionHistoryEntry {
741 selections: Arc<[Selection<Anchor>]>,
742 select_next_state: Option<SelectNextState>,
743 select_prev_state: Option<SelectNextState>,
744 add_selections_state: Option<AddSelectionsState>,
745}
746
747enum SelectionHistoryMode {
748 Normal,
749 Undoing,
750 Redoing,
751}
752
753#[derive(Clone, PartialEq, Eq, Hash)]
754struct HoveredCursor {
755 replica_id: u16,
756 selection_id: usize,
757}
758
759impl Default for SelectionHistoryMode {
760 fn default() -> Self {
761 Self::Normal
762 }
763}
764
765#[derive(Default)]
766struct SelectionHistory {
767 #[allow(clippy::type_complexity)]
768 selections_by_transaction:
769 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
770 mode: SelectionHistoryMode,
771 undo_stack: VecDeque<SelectionHistoryEntry>,
772 redo_stack: VecDeque<SelectionHistoryEntry>,
773}
774
775impl SelectionHistory {
776 fn insert_transaction(
777 &mut self,
778 transaction_id: TransactionId,
779 selections: Arc<[Selection<Anchor>]>,
780 ) {
781 self.selections_by_transaction
782 .insert(transaction_id, (selections, None));
783 }
784
785 #[allow(clippy::type_complexity)]
786 fn transaction(
787 &self,
788 transaction_id: TransactionId,
789 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
790 self.selections_by_transaction.get(&transaction_id)
791 }
792
793 #[allow(clippy::type_complexity)]
794 fn transaction_mut(
795 &mut self,
796 transaction_id: TransactionId,
797 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
798 self.selections_by_transaction.get_mut(&transaction_id)
799 }
800
801 fn push(&mut self, entry: SelectionHistoryEntry) {
802 if !entry.selections.is_empty() {
803 match self.mode {
804 SelectionHistoryMode::Normal => {
805 self.push_undo(entry);
806 self.redo_stack.clear();
807 }
808 SelectionHistoryMode::Undoing => self.push_redo(entry),
809 SelectionHistoryMode::Redoing => self.push_undo(entry),
810 }
811 }
812 }
813
814 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
815 if self
816 .undo_stack
817 .back()
818 .map_or(true, |e| e.selections != entry.selections)
819 {
820 self.undo_stack.push_back(entry);
821 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
822 self.undo_stack.pop_front();
823 }
824 }
825 }
826
827 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
828 if self
829 .redo_stack
830 .back()
831 .map_or(true, |e| e.selections != entry.selections)
832 {
833 self.redo_stack.push_back(entry);
834 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
835 self.redo_stack.pop_front();
836 }
837 }
838 }
839}
840
841struct RowHighlight {
842 index: usize,
843 range: Range<Anchor>,
844 color: Hsla,
845 should_autoscroll: bool,
846}
847
848#[derive(Clone, Debug)]
849struct AddSelectionsState {
850 above: bool,
851 stack: Vec<usize>,
852}
853
854#[derive(Clone)]
855struct SelectNextState {
856 query: AhoCorasick,
857 wordwise: bool,
858 done: bool,
859}
860
861impl std::fmt::Debug for SelectNextState {
862 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
863 f.debug_struct(std::any::type_name::<Self>())
864 .field("wordwise", &self.wordwise)
865 .field("done", &self.done)
866 .finish()
867 }
868}
869
870#[derive(Debug)]
871struct AutocloseRegion {
872 selection_id: usize,
873 range: Range<Anchor>,
874 pair: BracketPair,
875}
876
877#[derive(Debug)]
878struct SnippetState {
879 ranges: Vec<Vec<Range<Anchor>>>,
880 active_index: usize,
881 choices: Vec<Option<Vec<String>>>,
882}
883
884#[doc(hidden)]
885pub struct RenameState {
886 pub range: Range<Anchor>,
887 pub old_name: Arc<str>,
888 pub editor: View<Editor>,
889 block_id: CustomBlockId,
890}
891
892struct InvalidationStack<T>(Vec<T>);
893
894struct RegisteredInlineCompletionProvider {
895 provider: Arc<dyn InlineCompletionProviderHandle>,
896 _subscription: Subscription,
897}
898
899enum ContextMenu {
900 Completions(CompletionsMenu),
901 CodeActions(CodeActionsMenu),
902}
903
904impl ContextMenu {
905 fn select_first(
906 &mut self,
907 provider: Option<&dyn CompletionProvider>,
908 cx: &mut ViewContext<Editor>,
909 ) -> bool {
910 if self.visible() {
911 match self {
912 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
913 ContextMenu::CodeActions(menu) => menu.select_first(cx),
914 }
915 true
916 } else {
917 false
918 }
919 }
920
921 fn select_prev(
922 &mut self,
923 provider: Option<&dyn CompletionProvider>,
924 cx: &mut ViewContext<Editor>,
925 ) -> bool {
926 if self.visible() {
927 match self {
928 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
929 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
930 }
931 true
932 } else {
933 false
934 }
935 }
936
937 fn select_next(
938 &mut self,
939 provider: Option<&dyn CompletionProvider>,
940 cx: &mut ViewContext<Editor>,
941 ) -> bool {
942 if self.visible() {
943 match self {
944 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
945 ContextMenu::CodeActions(menu) => menu.select_next(cx),
946 }
947 true
948 } else {
949 false
950 }
951 }
952
953 fn select_last(
954 &mut self,
955 provider: Option<&dyn CompletionProvider>,
956 cx: &mut ViewContext<Editor>,
957 ) -> bool {
958 if self.visible() {
959 match self {
960 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
961 ContextMenu::CodeActions(menu) => menu.select_last(cx),
962 }
963 true
964 } else {
965 false
966 }
967 }
968
969 fn visible(&self) -> bool {
970 match self {
971 ContextMenu::Completions(menu) => menu.visible(),
972 ContextMenu::CodeActions(menu) => menu.visible(),
973 }
974 }
975
976 fn render(
977 &self,
978 cursor_position: DisplayPoint,
979 style: &EditorStyle,
980 max_height: Pixels,
981 workspace: Option<WeakView<Workspace>>,
982 cx: &mut ViewContext<Editor>,
983 ) -> (ContextMenuOrigin, AnyElement) {
984 match self {
985 ContextMenu::Completions(menu) => (
986 ContextMenuOrigin::EditorPoint(cursor_position),
987 menu.render(style, max_height, workspace, cx),
988 ),
989 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
990 }
991 }
992}
993
994enum ContextMenuOrigin {
995 EditorPoint(DisplayPoint),
996 GutterIndicator(DisplayRow),
997}
998
999#[derive(Clone, Debug)]
1000struct CompletionsMenu {
1001 id: CompletionId,
1002 sort_completions: bool,
1003 initial_position: Anchor,
1004 buffer: Model<Buffer>,
1005 completions: Arc<RwLock<Box<[Completion]>>>,
1006 match_candidates: Arc<[StringMatchCandidate]>,
1007 matches: Arc<[StringMatch]>,
1008 selected_item: usize,
1009 scroll_handle: UniformListScrollHandle,
1010 selected_completion_resolve_debounce: Option<Arc<Mutex<DebouncedDelay>>>,
1011}
1012
1013impl CompletionsMenu {
1014 fn new(
1015 id: CompletionId,
1016 sort_completions: bool,
1017 initial_position: Anchor,
1018 buffer: Model<Buffer>,
1019 completions: Box<[Completion]>,
1020 ) -> Self {
1021 let match_candidates = completions
1022 .iter()
1023 .enumerate()
1024 .map(|(id, completion)| {
1025 StringMatchCandidate::new(
1026 id,
1027 completion.label.text[completion.label.filter_range.clone()].into(),
1028 )
1029 })
1030 .collect();
1031
1032 Self {
1033 id,
1034 sort_completions,
1035 initial_position,
1036 buffer,
1037 completions: Arc::new(RwLock::new(completions)),
1038 match_candidates,
1039 matches: Vec::new().into(),
1040 selected_item: 0,
1041 scroll_handle: UniformListScrollHandle::new(),
1042 selected_completion_resolve_debounce: Some(Arc::new(Mutex::new(DebouncedDelay::new()))),
1043 }
1044 }
1045
1046 fn new_snippet_choices(
1047 id: CompletionId,
1048 sort_completions: bool,
1049 choices: &Vec<String>,
1050 selection: Range<Anchor>,
1051 buffer: Model<Buffer>,
1052 ) -> Self {
1053 let completions = choices
1054 .iter()
1055 .map(|choice| Completion {
1056 old_range: selection.start.text_anchor..selection.end.text_anchor,
1057 new_text: choice.to_string(),
1058 label: CodeLabel {
1059 text: choice.to_string(),
1060 runs: Default::default(),
1061 filter_range: Default::default(),
1062 },
1063 server_id: LanguageServerId(usize::MAX),
1064 documentation: None,
1065 lsp_completion: Default::default(),
1066 confirm: None,
1067 })
1068 .collect();
1069
1070 let match_candidates = choices
1071 .iter()
1072 .enumerate()
1073 .map(|(id, completion)| StringMatchCandidate::new(id, completion.to_string()))
1074 .collect();
1075 let matches = choices
1076 .iter()
1077 .enumerate()
1078 .map(|(id, completion)| StringMatch {
1079 candidate_id: id,
1080 score: 1.,
1081 positions: vec![],
1082 string: completion.clone(),
1083 })
1084 .collect();
1085 Self {
1086 id,
1087 sort_completions,
1088 initial_position: selection.start,
1089 buffer,
1090 completions: Arc::new(RwLock::new(completions)),
1091 match_candidates,
1092 matches,
1093 selected_item: 0,
1094 scroll_handle: UniformListScrollHandle::new(),
1095 selected_completion_resolve_debounce: Some(Arc::new(Mutex::new(DebouncedDelay::new()))),
1096 }
1097 }
1098
1099 fn suppress_documentation_resolution(mut self) -> Self {
1100 self.selected_completion_resolve_debounce.take();
1101 self
1102 }
1103
1104 fn select_first(
1105 &mut self,
1106 provider: Option<&dyn CompletionProvider>,
1107 cx: &mut ViewContext<Editor>,
1108 ) {
1109 self.selected_item = 0;
1110 self.scroll_handle
1111 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1112 self.resolve_selected_completion(provider, cx);
1113 cx.notify();
1114 }
1115
1116 fn select_prev(
1117 &mut self,
1118 provider: Option<&dyn CompletionProvider>,
1119 cx: &mut ViewContext<Editor>,
1120 ) {
1121 if self.selected_item > 0 {
1122 self.selected_item -= 1;
1123 } else {
1124 self.selected_item = self.matches.len() - 1;
1125 }
1126 self.scroll_handle
1127 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1128 self.resolve_selected_completion(provider, cx);
1129 cx.notify();
1130 }
1131
1132 fn select_next(
1133 &mut self,
1134 provider: Option<&dyn CompletionProvider>,
1135 cx: &mut ViewContext<Editor>,
1136 ) {
1137 if self.selected_item + 1 < self.matches.len() {
1138 self.selected_item += 1;
1139 } else {
1140 self.selected_item = 0;
1141 }
1142 self.scroll_handle
1143 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1144 self.resolve_selected_completion(provider, cx);
1145 cx.notify();
1146 }
1147
1148 fn select_last(
1149 &mut self,
1150 provider: Option<&dyn CompletionProvider>,
1151 cx: &mut ViewContext<Editor>,
1152 ) {
1153 self.selected_item = self.matches.len() - 1;
1154 self.scroll_handle
1155 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1156 self.resolve_selected_completion(provider, cx);
1157 cx.notify();
1158 }
1159
1160 fn resolve_selected_completion(
1161 &mut self,
1162 provider: Option<&dyn CompletionProvider>,
1163 cx: &mut ViewContext<Editor>,
1164 ) {
1165 let completion_index = self.matches[self.selected_item].candidate_id;
1166 let Some(provider) = provider else {
1167 return;
1168 };
1169 let Some(completion_resolve) = self.selected_completion_resolve_debounce.as_ref() else {
1170 return;
1171 };
1172
1173 let resolve_task = provider.resolve_completions(
1174 self.buffer.clone(),
1175 vec![completion_index],
1176 self.completions.clone(),
1177 cx,
1178 );
1179
1180 let delay_ms =
1181 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1182 let delay = Duration::from_millis(delay_ms);
1183
1184 completion_resolve.lock().fire_new(delay, cx, |_, cx| {
1185 cx.spawn(move |editor, mut cx| async move {
1186 if let Some(true) = resolve_task.await.log_err() {
1187 editor.update(&mut cx, |_, cx| cx.notify()).ok();
1188 }
1189 })
1190 });
1191 }
1192
1193 fn visible(&self) -> bool {
1194 !self.matches.is_empty()
1195 }
1196
1197 fn render(
1198 &self,
1199 style: &EditorStyle,
1200 max_height: Pixels,
1201 workspace: Option<WeakView<Workspace>>,
1202 cx: &mut ViewContext<Editor>,
1203 ) -> AnyElement {
1204 let settings = EditorSettings::get_global(cx);
1205 let show_completion_documentation = settings.show_completion_documentation;
1206
1207 let widest_completion_ix = self
1208 .matches
1209 .iter()
1210 .enumerate()
1211 .max_by_key(|(_, mat)| {
1212 let completions = self.completions.read();
1213 let completion = &completions[mat.candidate_id];
1214 let documentation = &completion.documentation;
1215
1216 let mut len = completion.label.text.chars().count();
1217 if let Some(Documentation::SingleLine(text)) = documentation {
1218 if show_completion_documentation {
1219 len += text.chars().count();
1220 }
1221 }
1222
1223 len
1224 })
1225 .map(|(ix, _)| ix);
1226
1227 let completions = self.completions.clone();
1228 let matches = self.matches.clone();
1229 let selected_item = self.selected_item;
1230 let style = style.clone();
1231
1232 let multiline_docs = if show_completion_documentation {
1233 let mat = &self.matches[selected_item];
1234 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1235 Some(Documentation::MultiLinePlainText(text)) => {
1236 Some(div().child(SharedString::from(text.clone())))
1237 }
1238 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1239 Some(div().child(render_parsed_markdown(
1240 "completions_markdown",
1241 parsed,
1242 &style,
1243 workspace,
1244 cx,
1245 )))
1246 }
1247 _ => None,
1248 };
1249 multiline_docs.map(|div| {
1250 div.id("multiline_docs")
1251 .max_h(max_height)
1252 .flex_1()
1253 .px_1p5()
1254 .py_1()
1255 .min_w(px(260.))
1256 .max_w(px(640.))
1257 .w(px(500.))
1258 .overflow_y_scroll()
1259 .occlude()
1260 })
1261 } else {
1262 None
1263 };
1264
1265 let list = uniform_list(
1266 cx.view().clone(),
1267 "completions",
1268 matches.len(),
1269 move |_editor, range, cx| {
1270 let start_ix = range.start;
1271 let completions_guard = completions.read();
1272
1273 matches[range]
1274 .iter()
1275 .enumerate()
1276 .map(|(ix, mat)| {
1277 let item_ix = start_ix + ix;
1278 let candidate_id = mat.candidate_id;
1279 let completion = &completions_guard[candidate_id];
1280
1281 let documentation = if show_completion_documentation {
1282 &completion.documentation
1283 } else {
1284 &None
1285 };
1286
1287 let highlights = gpui::combine_highlights(
1288 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1289 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1290 |(range, mut highlight)| {
1291 // Ignore font weight for syntax highlighting, as we'll use it
1292 // for fuzzy matches.
1293 highlight.font_weight = None;
1294
1295 if completion.lsp_completion.deprecated.unwrap_or(false) {
1296 highlight.strikethrough = Some(StrikethroughStyle {
1297 thickness: 1.0.into(),
1298 ..Default::default()
1299 });
1300 highlight.color = Some(cx.theme().colors().text_muted);
1301 }
1302
1303 (range, highlight)
1304 },
1305 ),
1306 );
1307 let completion_label = StyledText::new(completion.label.text.clone())
1308 .with_highlights(&style.text, highlights);
1309 let documentation_label =
1310 if let Some(Documentation::SingleLine(text)) = documentation {
1311 if text.trim().is_empty() {
1312 None
1313 } else {
1314 Some(
1315 Label::new(text.clone())
1316 .ml_4()
1317 .size(LabelSize::Small)
1318 .color(Color::Muted),
1319 )
1320 }
1321 } else {
1322 None
1323 };
1324
1325 let color_swatch = completion
1326 .color()
1327 .map(|color| div().size_4().bg(color).rounded_sm());
1328
1329 div().min_w(px(220.)).max_w(px(540.)).child(
1330 ListItem::new(mat.candidate_id)
1331 .inset(true)
1332 .selected(item_ix == selected_item)
1333 .on_click(cx.listener(move |editor, _event, cx| {
1334 cx.stop_propagation();
1335 if let Some(task) = editor.confirm_completion(
1336 &ConfirmCompletion {
1337 item_ix: Some(item_ix),
1338 },
1339 cx,
1340 ) {
1341 task.detach_and_log_err(cx)
1342 }
1343 }))
1344 .start_slot::<Div>(color_swatch)
1345 .child(h_flex().overflow_hidden().child(completion_label))
1346 .end_slot::<Label>(documentation_label),
1347 )
1348 })
1349 .collect()
1350 },
1351 )
1352 .occlude()
1353 .max_h(max_height)
1354 .track_scroll(self.scroll_handle.clone())
1355 .with_width_from_item(widest_completion_ix)
1356 .with_sizing_behavior(ListSizingBehavior::Infer);
1357
1358 Popover::new()
1359 .child(list)
1360 .when_some(multiline_docs, |popover, multiline_docs| {
1361 popover.aside(multiline_docs)
1362 })
1363 .into_any_element()
1364 }
1365
1366 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1367 let mut matches = if let Some(query) = query {
1368 fuzzy::match_strings(
1369 &self.match_candidates,
1370 query,
1371 query.chars().any(|c| c.is_uppercase()),
1372 100,
1373 &Default::default(),
1374 executor,
1375 )
1376 .await
1377 } else {
1378 self.match_candidates
1379 .iter()
1380 .enumerate()
1381 .map(|(candidate_id, candidate)| StringMatch {
1382 candidate_id,
1383 score: Default::default(),
1384 positions: Default::default(),
1385 string: candidate.string.clone(),
1386 })
1387 .collect()
1388 };
1389
1390 // Remove all candidates where the query's start does not match the start of any word in the candidate
1391 if let Some(query) = query {
1392 if let Some(query_start) = query.chars().next() {
1393 matches.retain(|string_match| {
1394 split_words(&string_match.string).any(|word| {
1395 // Check that the first codepoint of the word as lowercase matches the first
1396 // codepoint of the query as lowercase
1397 word.chars()
1398 .flat_map(|codepoint| codepoint.to_lowercase())
1399 .zip(query_start.to_lowercase())
1400 .all(|(word_cp, query_cp)| word_cp == query_cp)
1401 })
1402 });
1403 }
1404 }
1405
1406 let completions = self.completions.read();
1407 if self.sort_completions {
1408 matches.sort_unstable_by_key(|mat| {
1409 // We do want to strike a balance here between what the language server tells us
1410 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1411 // `Creat` and there is a local variable called `CreateComponent`).
1412 // So what we do is: we bucket all matches into two buckets
1413 // - Strong matches
1414 // - Weak matches
1415 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1416 // and the Weak matches are the rest.
1417 //
1418 // For the strong matches, we sort by our fuzzy-finder score first and for the weak
1419 // matches, we prefer language-server sort_text first.
1420 //
1421 // The thinking behind that: we want to show strong matches first in order of relevance(fuzzy score).
1422 // Rest of the matches(weak) can be sorted as language-server expects.
1423
1424 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1425 enum MatchScore<'a> {
1426 Strong {
1427 score: Reverse<OrderedFloat<f64>>,
1428 sort_text: Option<&'a str>,
1429 sort_key: (usize, &'a str),
1430 },
1431 Weak {
1432 sort_text: Option<&'a str>,
1433 score: Reverse<OrderedFloat<f64>>,
1434 sort_key: (usize, &'a str),
1435 },
1436 }
1437
1438 let completion = &completions[mat.candidate_id];
1439 let sort_key = completion.sort_key();
1440 let sort_text = completion.lsp_completion.sort_text.as_deref();
1441 let score = Reverse(OrderedFloat(mat.score));
1442
1443 if mat.score >= 0.2 {
1444 MatchScore::Strong {
1445 score,
1446 sort_text,
1447 sort_key,
1448 }
1449 } else {
1450 MatchScore::Weak {
1451 sort_text,
1452 score,
1453 sort_key,
1454 }
1455 }
1456 });
1457 }
1458
1459 for mat in &mut matches {
1460 let completion = &completions[mat.candidate_id];
1461 mat.string.clone_from(&completion.label.text);
1462 for position in &mut mat.positions {
1463 *position += completion.label.filter_range.start;
1464 }
1465 }
1466 drop(completions);
1467
1468 self.matches = matches.into();
1469 self.selected_item = 0;
1470 }
1471}
1472
1473#[derive(Clone)]
1474struct AvailableCodeAction {
1475 excerpt_id: ExcerptId,
1476 action: CodeAction,
1477 provider: Arc<dyn CodeActionProvider>,
1478}
1479
1480#[derive(Clone)]
1481struct CodeActionContents {
1482 tasks: Option<Arc<ResolvedTasks>>,
1483 actions: Option<Arc<[AvailableCodeAction]>>,
1484}
1485
1486impl CodeActionContents {
1487 fn len(&self) -> usize {
1488 match (&self.tasks, &self.actions) {
1489 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1490 (Some(tasks), None) => tasks.templates.len(),
1491 (None, Some(actions)) => actions.len(),
1492 (None, None) => 0,
1493 }
1494 }
1495
1496 fn is_empty(&self) -> bool {
1497 match (&self.tasks, &self.actions) {
1498 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1499 (Some(tasks), None) => tasks.templates.is_empty(),
1500 (None, Some(actions)) => actions.is_empty(),
1501 (None, None) => true,
1502 }
1503 }
1504
1505 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1506 self.tasks
1507 .iter()
1508 .flat_map(|tasks| {
1509 tasks
1510 .templates
1511 .iter()
1512 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1513 })
1514 .chain(self.actions.iter().flat_map(|actions| {
1515 actions.iter().map(|available| CodeActionsItem::CodeAction {
1516 excerpt_id: available.excerpt_id,
1517 action: available.action.clone(),
1518 provider: available.provider.clone(),
1519 })
1520 }))
1521 }
1522 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1523 match (&self.tasks, &self.actions) {
1524 (Some(tasks), Some(actions)) => {
1525 if index < tasks.templates.len() {
1526 tasks
1527 .templates
1528 .get(index)
1529 .cloned()
1530 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1531 } else {
1532 actions.get(index - tasks.templates.len()).map(|available| {
1533 CodeActionsItem::CodeAction {
1534 excerpt_id: available.excerpt_id,
1535 action: available.action.clone(),
1536 provider: available.provider.clone(),
1537 }
1538 })
1539 }
1540 }
1541 (Some(tasks), None) => tasks
1542 .templates
1543 .get(index)
1544 .cloned()
1545 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1546 (None, Some(actions)) => {
1547 actions
1548 .get(index)
1549 .map(|available| CodeActionsItem::CodeAction {
1550 excerpt_id: available.excerpt_id,
1551 action: available.action.clone(),
1552 provider: available.provider.clone(),
1553 })
1554 }
1555 (None, None) => None,
1556 }
1557 }
1558}
1559
1560#[allow(clippy::large_enum_variant)]
1561#[derive(Clone)]
1562enum CodeActionsItem {
1563 Task(TaskSourceKind, ResolvedTask),
1564 CodeAction {
1565 excerpt_id: ExcerptId,
1566 action: CodeAction,
1567 provider: Arc<dyn CodeActionProvider>,
1568 },
1569}
1570
1571impl CodeActionsItem {
1572 fn as_task(&self) -> Option<&ResolvedTask> {
1573 let Self::Task(_, task) = self else {
1574 return None;
1575 };
1576 Some(task)
1577 }
1578 fn as_code_action(&self) -> Option<&CodeAction> {
1579 let Self::CodeAction { action, .. } = self else {
1580 return None;
1581 };
1582 Some(action)
1583 }
1584 fn label(&self) -> String {
1585 match self {
1586 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1587 Self::Task(_, task) => task.resolved_label.clone(),
1588 }
1589 }
1590}
1591
1592struct CodeActionsMenu {
1593 actions: CodeActionContents,
1594 buffer: Model<Buffer>,
1595 selected_item: usize,
1596 scroll_handle: UniformListScrollHandle,
1597 deployed_from_indicator: Option<DisplayRow>,
1598}
1599
1600impl CodeActionsMenu {
1601 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1602 self.selected_item = 0;
1603 self.scroll_handle
1604 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1605 cx.notify()
1606 }
1607
1608 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1609 if self.selected_item > 0 {
1610 self.selected_item -= 1;
1611 } else {
1612 self.selected_item = self.actions.len() - 1;
1613 }
1614 self.scroll_handle
1615 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1616 cx.notify();
1617 }
1618
1619 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1620 if self.selected_item + 1 < self.actions.len() {
1621 self.selected_item += 1;
1622 } else {
1623 self.selected_item = 0;
1624 }
1625 self.scroll_handle
1626 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1627 cx.notify();
1628 }
1629
1630 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1631 self.selected_item = self.actions.len() - 1;
1632 self.scroll_handle
1633 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1634 cx.notify()
1635 }
1636
1637 fn visible(&self) -> bool {
1638 !self.actions.is_empty()
1639 }
1640
1641 fn render(
1642 &self,
1643 cursor_position: DisplayPoint,
1644 _style: &EditorStyle,
1645 max_height: Pixels,
1646 cx: &mut ViewContext<Editor>,
1647 ) -> (ContextMenuOrigin, AnyElement) {
1648 let actions = self.actions.clone();
1649 let selected_item = self.selected_item;
1650 let element = uniform_list(
1651 cx.view().clone(),
1652 "code_actions_menu",
1653 self.actions.len(),
1654 move |_this, range, cx| {
1655 actions
1656 .iter()
1657 .skip(range.start)
1658 .take(range.end - range.start)
1659 .enumerate()
1660 .map(|(ix, action)| {
1661 let item_ix = range.start + ix;
1662 let selected = selected_item == item_ix;
1663 let colors = cx.theme().colors();
1664 div()
1665 .px_1()
1666 .rounded_md()
1667 .text_color(colors.text)
1668 .when(selected, |style| {
1669 style
1670 .bg(colors.element_active)
1671 .text_color(colors.text_accent)
1672 })
1673 .hover(|style| {
1674 style
1675 .bg(colors.element_hover)
1676 .text_color(colors.text_accent)
1677 })
1678 .whitespace_nowrap()
1679 .when_some(action.as_code_action(), |this, action| {
1680 this.on_mouse_down(
1681 MouseButton::Left,
1682 cx.listener(move |editor, _, cx| {
1683 cx.stop_propagation();
1684 if let Some(task) = editor.confirm_code_action(
1685 &ConfirmCodeAction {
1686 item_ix: Some(item_ix),
1687 },
1688 cx,
1689 ) {
1690 task.detach_and_log_err(cx)
1691 }
1692 }),
1693 )
1694 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1695 .child(SharedString::from(
1696 action.lsp_action.title.replace("\n", ""),
1697 ))
1698 })
1699 .when_some(action.as_task(), |this, task| {
1700 this.on_mouse_down(
1701 MouseButton::Left,
1702 cx.listener(move |editor, _, cx| {
1703 cx.stop_propagation();
1704 if let Some(task) = editor.confirm_code_action(
1705 &ConfirmCodeAction {
1706 item_ix: Some(item_ix),
1707 },
1708 cx,
1709 ) {
1710 task.detach_and_log_err(cx)
1711 }
1712 }),
1713 )
1714 .child(SharedString::from(task.resolved_label.replace("\n", "")))
1715 })
1716 })
1717 .collect()
1718 },
1719 )
1720 .elevation_1(cx)
1721 .p_1()
1722 .max_h(max_height)
1723 .occlude()
1724 .track_scroll(self.scroll_handle.clone())
1725 .with_width_from_item(
1726 self.actions
1727 .iter()
1728 .enumerate()
1729 .max_by_key(|(_, action)| match action {
1730 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1731 CodeActionsItem::CodeAction { action, .. } => {
1732 action.lsp_action.title.chars().count()
1733 }
1734 })
1735 .map(|(ix, _)| ix),
1736 )
1737 .with_sizing_behavior(ListSizingBehavior::Infer)
1738 .into_any_element();
1739
1740 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1741 ContextMenuOrigin::GutterIndicator(row)
1742 } else {
1743 ContextMenuOrigin::EditorPoint(cursor_position)
1744 };
1745
1746 (cursor_position, element)
1747 }
1748}
1749
1750#[derive(Debug)]
1751struct ActiveDiagnosticGroup {
1752 primary_range: Range<Anchor>,
1753 primary_message: String,
1754 group_id: usize,
1755 blocks: HashMap<CustomBlockId, Diagnostic>,
1756 is_valid: bool,
1757}
1758
1759#[derive(Serialize, Deserialize, Clone, Debug)]
1760pub struct ClipboardSelection {
1761 pub len: usize,
1762 pub is_entire_line: bool,
1763 pub first_line_indent: u32,
1764}
1765
1766#[derive(Debug)]
1767pub(crate) struct NavigationData {
1768 cursor_anchor: Anchor,
1769 cursor_position: Point,
1770 scroll_anchor: ScrollAnchor,
1771 scroll_top_row: u32,
1772}
1773
1774#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1775pub enum GotoDefinitionKind {
1776 Symbol,
1777 Declaration,
1778 Type,
1779 Implementation,
1780}
1781
1782#[derive(Debug, Clone)]
1783enum InlayHintRefreshReason {
1784 Toggle(bool),
1785 SettingsChange(InlayHintSettings),
1786 NewLinesShown,
1787 BufferEdited(HashSet<Arc<Language>>),
1788 RefreshRequested,
1789 ExcerptsRemoved(Vec<ExcerptId>),
1790}
1791
1792impl InlayHintRefreshReason {
1793 fn description(&self) -> &'static str {
1794 match self {
1795 Self::Toggle(_) => "toggle",
1796 Self::SettingsChange(_) => "settings change",
1797 Self::NewLinesShown => "new lines shown",
1798 Self::BufferEdited(_) => "buffer edited",
1799 Self::RefreshRequested => "refresh requested",
1800 Self::ExcerptsRemoved(_) => "excerpts removed",
1801 }
1802 }
1803}
1804
1805pub(crate) struct FocusedBlock {
1806 id: BlockId,
1807 focus_handle: WeakFocusHandle,
1808}
1809
1810#[derive(Clone)]
1811struct JumpData {
1812 excerpt_id: ExcerptId,
1813 position: Point,
1814 anchor: text::Anchor,
1815 path: Option<project::ProjectPath>,
1816 line_offset_from_top: u32,
1817}
1818
1819impl Editor {
1820 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1821 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1822 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1823 Self::new(
1824 EditorMode::SingleLine { auto_width: false },
1825 buffer,
1826 None,
1827 false,
1828 cx,
1829 )
1830 }
1831
1832 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1833 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1834 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1835 Self::new(EditorMode::Full, buffer, None, false, cx)
1836 }
1837
1838 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1839 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1840 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1841 Self::new(
1842 EditorMode::SingleLine { auto_width: true },
1843 buffer,
1844 None,
1845 false,
1846 cx,
1847 )
1848 }
1849
1850 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1851 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1852 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1853 Self::new(
1854 EditorMode::AutoHeight { max_lines },
1855 buffer,
1856 None,
1857 false,
1858 cx,
1859 )
1860 }
1861
1862 pub fn for_buffer(
1863 buffer: Model<Buffer>,
1864 project: Option<Model<Project>>,
1865 cx: &mut ViewContext<Self>,
1866 ) -> Self {
1867 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1868 Self::new(EditorMode::Full, buffer, project, false, cx)
1869 }
1870
1871 pub fn for_multibuffer(
1872 buffer: Model<MultiBuffer>,
1873 project: Option<Model<Project>>,
1874 show_excerpt_controls: bool,
1875 cx: &mut ViewContext<Self>,
1876 ) -> Self {
1877 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1878 }
1879
1880 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1881 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1882 let mut clone = Self::new(
1883 self.mode,
1884 self.buffer.clone(),
1885 self.project.clone(),
1886 show_excerpt_controls,
1887 cx,
1888 );
1889 self.display_map.update(cx, |display_map, cx| {
1890 let snapshot = display_map.snapshot(cx);
1891 clone.display_map.update(cx, |display_map, cx| {
1892 display_map.set_state(&snapshot, cx);
1893 });
1894 });
1895 clone.selections.clone_state(&self.selections);
1896 clone.scroll_manager.clone_state(&self.scroll_manager);
1897 clone.searchable = self.searchable;
1898 clone
1899 }
1900
1901 pub fn new(
1902 mode: EditorMode,
1903 buffer: Model<MultiBuffer>,
1904 project: Option<Model<Project>>,
1905 show_excerpt_controls: bool,
1906 cx: &mut ViewContext<Self>,
1907 ) -> Self {
1908 let style = cx.text_style();
1909 let font_size = style.font_size.to_pixels(cx.rem_size());
1910 let editor = cx.view().downgrade();
1911 let fold_placeholder = FoldPlaceholder {
1912 constrain_width: true,
1913 render: Arc::new(move |fold_id, fold_range, cx| {
1914 let editor = editor.clone();
1915 div()
1916 .id(fold_id)
1917 .bg(cx.theme().colors().ghost_element_background)
1918 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1919 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1920 .rounded_sm()
1921 .size_full()
1922 .cursor_pointer()
1923 .child("⋯")
1924 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1925 .on_click(move |_, cx| {
1926 editor
1927 .update(cx, |editor, cx| {
1928 editor.unfold_ranges(
1929 &[fold_range.start..fold_range.end],
1930 true,
1931 false,
1932 cx,
1933 );
1934 cx.stop_propagation();
1935 })
1936 .ok();
1937 })
1938 .into_any()
1939 }),
1940 merge_adjacent: true,
1941 ..Default::default()
1942 };
1943 let display_map = cx.new_model(|cx| {
1944 DisplayMap::new(
1945 buffer.clone(),
1946 style.font(),
1947 font_size,
1948 None,
1949 show_excerpt_controls,
1950 FILE_HEADER_HEIGHT,
1951 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1952 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1953 fold_placeholder,
1954 cx,
1955 )
1956 });
1957
1958 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1959
1960 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1961
1962 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1963 .then(|| language_settings::SoftWrap::None);
1964
1965 let mut project_subscriptions = Vec::new();
1966 if mode == EditorMode::Full {
1967 if let Some(project) = project.as_ref() {
1968 if buffer.read(cx).is_singleton() {
1969 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1970 cx.emit(EditorEvent::TitleChanged);
1971 }));
1972 }
1973 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1974 if let project::Event::RefreshInlayHints = event {
1975 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1976 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1977 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1978 let focus_handle = editor.focus_handle(cx);
1979 if focus_handle.is_focused(cx) {
1980 let snapshot = buffer.read(cx).snapshot();
1981 for (range, snippet) in snippet_edits {
1982 let editor_range =
1983 language::range_from_lsp(*range).to_offset(&snapshot);
1984 editor
1985 .insert_snippet(&[editor_range], snippet.clone(), cx)
1986 .ok();
1987 }
1988 }
1989 }
1990 }
1991 }));
1992 if let Some(task_inventory) = project
1993 .read(cx)
1994 .task_store()
1995 .read(cx)
1996 .task_inventory()
1997 .cloned()
1998 {
1999 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
2000 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
2001 }));
2002 }
2003 }
2004 }
2005
2006 let buffer_snapshot = buffer.read(cx).snapshot(cx);
2007
2008 let inlay_hint_settings =
2009 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
2010 let focus_handle = cx.focus_handle();
2011 cx.on_focus(&focus_handle, Self::handle_focus).detach();
2012 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
2013 .detach();
2014 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
2015 .detach();
2016 cx.on_blur(&focus_handle, Self::handle_blur).detach();
2017
2018 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
2019 Some(false)
2020 } else {
2021 None
2022 };
2023
2024 let mut code_action_providers = Vec::new();
2025 if let Some(project) = project.clone() {
2026 get_unstaged_changes_for_buffers(&project, buffer.read(cx).all_buffers(), cx);
2027 code_action_providers.push(Arc::new(project) as Arc<_>);
2028 }
2029
2030 let mut this = Self {
2031 focus_handle,
2032 show_cursor_when_unfocused: false,
2033 last_focused_descendant: None,
2034 buffer: buffer.clone(),
2035 display_map: display_map.clone(),
2036 selections,
2037 scroll_manager: ScrollManager::new(cx),
2038 columnar_selection_tail: None,
2039 add_selections_state: None,
2040 select_next_state: None,
2041 select_prev_state: None,
2042 selection_history: Default::default(),
2043 autoclose_regions: Default::default(),
2044 snippet_stack: Default::default(),
2045 select_larger_syntax_node_stack: Vec::new(),
2046 ime_transaction: Default::default(),
2047 active_diagnostics: None,
2048 soft_wrap_mode_override,
2049 completion_provider: project.clone().map(|project| Box::new(project) as _),
2050 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
2051 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
2052 project,
2053 blink_manager: blink_manager.clone(),
2054 show_local_selections: true,
2055 mode,
2056 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
2057 show_gutter: mode == EditorMode::Full,
2058 show_line_numbers: None,
2059 use_relative_line_numbers: None,
2060 show_git_diff_gutter: None,
2061 show_code_actions: None,
2062 show_runnables: None,
2063 show_wrap_guides: None,
2064 show_indent_guides,
2065 placeholder_text: None,
2066 highlight_order: 0,
2067 highlighted_rows: HashMap::default(),
2068 background_highlights: Default::default(),
2069 gutter_highlights: TreeMap::default(),
2070 scrollbar_marker_state: ScrollbarMarkerState::default(),
2071 active_indent_guides_state: ActiveIndentGuidesState::default(),
2072 nav_history: None,
2073 context_menu: RwLock::new(None),
2074 mouse_context_menu: None,
2075 hunk_controls_menu_handle: PopoverMenuHandle::default(),
2076 completion_tasks: Default::default(),
2077 signature_help_state: SignatureHelpState::default(),
2078 auto_signature_help: None,
2079 find_all_references_task_sources: Vec::new(),
2080 next_completion_id: 0,
2081 next_inlay_id: 0,
2082 code_action_providers,
2083 available_code_actions: Default::default(),
2084 code_actions_task: Default::default(),
2085 document_highlights_task: Default::default(),
2086 linked_editing_range_task: Default::default(),
2087 pending_rename: Default::default(),
2088 searchable: true,
2089 cursor_shape: EditorSettings::get_global(cx)
2090 .cursor_shape
2091 .unwrap_or_default(),
2092 current_line_highlight: None,
2093 autoindent_mode: Some(AutoindentMode::EachLine),
2094 collapse_matches: false,
2095 workspace: None,
2096 input_enabled: true,
2097 use_modal_editing: mode == EditorMode::Full,
2098 read_only: false,
2099 use_autoclose: true,
2100 use_auto_surround: true,
2101 auto_replace_emoji_shortcode: false,
2102 leader_peer_id: None,
2103 remote_id: None,
2104 hover_state: Default::default(),
2105 hovered_link_state: Default::default(),
2106 inline_completion_provider: None,
2107 active_inline_completion: None,
2108 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2109 diff_map: DiffMap::default(),
2110 gutter_hovered: false,
2111 pixel_position_of_newest_cursor: None,
2112 last_bounds: None,
2113 expect_bounds_change: None,
2114 gutter_dimensions: GutterDimensions::default(),
2115 style: None,
2116 show_cursor_names: false,
2117 hovered_cursors: Default::default(),
2118 next_editor_action_id: EditorActionId::default(),
2119 editor_actions: Rc::default(),
2120 show_inline_completions_override: None,
2121 enable_inline_completions: true,
2122 custom_context_menu: None,
2123 show_git_blame_gutter: false,
2124 show_git_blame_inline: false,
2125 show_selection_menu: None,
2126 show_git_blame_inline_delay_task: None,
2127 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2128 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2129 .session
2130 .restore_unsaved_buffers,
2131 blame: None,
2132 blame_subscription: None,
2133 tasks: Default::default(),
2134 _subscriptions: vec![
2135 cx.observe(&buffer, Self::on_buffer_changed),
2136 cx.subscribe(&buffer, Self::on_buffer_event),
2137 cx.observe(&display_map, Self::on_display_map_changed),
2138 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2139 cx.observe_global::<SettingsStore>(Self::settings_changed),
2140 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2141 cx.observe_window_activation(|editor, cx| {
2142 let active = cx.is_window_active();
2143 editor.blink_manager.update(cx, |blink_manager, cx| {
2144 if active {
2145 blink_manager.enable(cx);
2146 } else {
2147 blink_manager.disable(cx);
2148 }
2149 });
2150 }),
2151 ],
2152 tasks_update_task: None,
2153 linked_edit_ranges: Default::default(),
2154 previous_search_ranges: None,
2155 breadcrumb_header: None,
2156 focused_block: None,
2157 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2158 addons: HashMap::default(),
2159 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2160 text_style_refinement: None,
2161 };
2162 this.tasks_update_task = Some(this.refresh_runnables(cx));
2163 this._subscriptions.extend(project_subscriptions);
2164
2165 this.end_selection(cx);
2166 this.scroll_manager.show_scrollbar(cx);
2167
2168 if mode == EditorMode::Full {
2169 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2170 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2171
2172 if this.git_blame_inline_enabled {
2173 this.git_blame_inline_enabled = true;
2174 this.start_git_blame_inline(false, cx);
2175 }
2176 }
2177
2178 this.report_editor_event("open", None, cx);
2179 this
2180 }
2181
2182 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2183 self.mouse_context_menu
2184 .as_ref()
2185 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2186 }
2187
2188 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2189 let mut key_context = KeyContext::new_with_defaults();
2190 key_context.add("Editor");
2191 let mode = match self.mode {
2192 EditorMode::SingleLine { .. } => "single_line",
2193 EditorMode::AutoHeight { .. } => "auto_height",
2194 EditorMode::Full => "full",
2195 };
2196
2197 if EditorSettings::jupyter_enabled(cx) {
2198 key_context.add("jupyter");
2199 }
2200
2201 key_context.set("mode", mode);
2202 if self.pending_rename.is_some() {
2203 key_context.add("renaming");
2204 }
2205 if self.context_menu_visible() {
2206 match self.context_menu.read().as_ref() {
2207 Some(ContextMenu::Completions(_)) => {
2208 key_context.add("menu");
2209 key_context.add("showing_completions")
2210 }
2211 Some(ContextMenu::CodeActions(_)) => {
2212 key_context.add("menu");
2213 key_context.add("showing_code_actions")
2214 }
2215 None => {}
2216 }
2217 }
2218
2219 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2220 if !self.focus_handle(cx).contains_focused(cx)
2221 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2222 {
2223 for addon in self.addons.values() {
2224 addon.extend_key_context(&mut key_context, cx)
2225 }
2226 }
2227
2228 if let Some(extension) = self
2229 .buffer
2230 .read(cx)
2231 .as_singleton()
2232 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2233 {
2234 key_context.set("extension", extension.to_string());
2235 }
2236
2237 if self.has_active_inline_completion(cx) {
2238 key_context.add("copilot_suggestion");
2239 key_context.add("inline_completion");
2240 }
2241
2242 key_context
2243 }
2244
2245 pub fn new_file(
2246 workspace: &mut Workspace,
2247 _: &workspace::NewFile,
2248 cx: &mut ViewContext<Workspace>,
2249 ) {
2250 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2251 "Failed to create buffer",
2252 cx,
2253 |e, _| match e.error_code() {
2254 ErrorCode::RemoteUpgradeRequired => Some(format!(
2255 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2256 e.error_tag("required").unwrap_or("the latest version")
2257 )),
2258 _ => None,
2259 },
2260 );
2261 }
2262
2263 pub fn new_in_workspace(
2264 workspace: &mut Workspace,
2265 cx: &mut ViewContext<Workspace>,
2266 ) -> Task<Result<View<Editor>>> {
2267 let project = workspace.project().clone();
2268 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2269
2270 cx.spawn(|workspace, mut cx| async move {
2271 let buffer = create.await?;
2272 workspace.update(&mut cx, |workspace, cx| {
2273 let editor =
2274 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2275 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2276 editor
2277 })
2278 })
2279 }
2280
2281 fn new_file_vertical(
2282 workspace: &mut Workspace,
2283 _: &workspace::NewFileSplitVertical,
2284 cx: &mut ViewContext<Workspace>,
2285 ) {
2286 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2287 }
2288
2289 fn new_file_horizontal(
2290 workspace: &mut Workspace,
2291 _: &workspace::NewFileSplitHorizontal,
2292 cx: &mut ViewContext<Workspace>,
2293 ) {
2294 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2295 }
2296
2297 fn new_file_in_direction(
2298 workspace: &mut Workspace,
2299 direction: SplitDirection,
2300 cx: &mut ViewContext<Workspace>,
2301 ) {
2302 let project = workspace.project().clone();
2303 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2304
2305 cx.spawn(|workspace, mut cx| async move {
2306 let buffer = create.await?;
2307 workspace.update(&mut cx, move |workspace, cx| {
2308 workspace.split_item(
2309 direction,
2310 Box::new(
2311 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2312 ),
2313 cx,
2314 )
2315 })?;
2316 anyhow::Ok(())
2317 })
2318 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2319 ErrorCode::RemoteUpgradeRequired => Some(format!(
2320 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2321 e.error_tag("required").unwrap_or("the latest version")
2322 )),
2323 _ => None,
2324 });
2325 }
2326
2327 pub fn leader_peer_id(&self) -> Option<PeerId> {
2328 self.leader_peer_id
2329 }
2330
2331 pub fn buffer(&self) -> &Model<MultiBuffer> {
2332 &self.buffer
2333 }
2334
2335 pub fn workspace(&self) -> Option<View<Workspace>> {
2336 self.workspace.as_ref()?.0.upgrade()
2337 }
2338
2339 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2340 self.buffer().read(cx).title(cx)
2341 }
2342
2343 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2344 let git_blame_gutter_max_author_length = self
2345 .render_git_blame_gutter(cx)
2346 .then(|| {
2347 if let Some(blame) = self.blame.as_ref() {
2348 let max_author_length =
2349 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2350 Some(max_author_length)
2351 } else {
2352 None
2353 }
2354 })
2355 .flatten();
2356
2357 EditorSnapshot {
2358 mode: self.mode,
2359 show_gutter: self.show_gutter,
2360 show_line_numbers: self.show_line_numbers,
2361 show_git_diff_gutter: self.show_git_diff_gutter,
2362 show_code_actions: self.show_code_actions,
2363 show_runnables: self.show_runnables,
2364 git_blame_gutter_max_author_length,
2365 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2366 scroll_anchor: self.scroll_manager.anchor(),
2367 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2368 placeholder_text: self.placeholder_text.clone(),
2369 diff_map: self.diff_map.snapshot(),
2370 is_focused: self.focus_handle.is_focused(cx),
2371 current_line_highlight: self
2372 .current_line_highlight
2373 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2374 gutter_hovered: self.gutter_hovered,
2375 }
2376 }
2377
2378 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2379 self.buffer.read(cx).language_at(point, cx)
2380 }
2381
2382 pub fn file_at<T: ToOffset>(
2383 &self,
2384 point: T,
2385 cx: &AppContext,
2386 ) -> Option<Arc<dyn language::File>> {
2387 self.buffer.read(cx).read(cx).file_at(point).cloned()
2388 }
2389
2390 pub fn active_excerpt(
2391 &self,
2392 cx: &AppContext,
2393 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2394 self.buffer
2395 .read(cx)
2396 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2397 }
2398
2399 pub fn mode(&self) -> EditorMode {
2400 self.mode
2401 }
2402
2403 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2404 self.collaboration_hub.as_deref()
2405 }
2406
2407 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2408 self.collaboration_hub = Some(hub);
2409 }
2410
2411 pub fn set_custom_context_menu(
2412 &mut self,
2413 f: impl 'static
2414 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2415 ) {
2416 self.custom_context_menu = Some(Box::new(f))
2417 }
2418
2419 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2420 self.completion_provider = provider;
2421 }
2422
2423 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2424 self.semantics_provider.clone()
2425 }
2426
2427 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2428 self.semantics_provider = provider;
2429 }
2430
2431 pub fn set_inline_completion_provider<T>(
2432 &mut self,
2433 provider: Option<Model<T>>,
2434 cx: &mut ViewContext<Self>,
2435 ) where
2436 T: InlineCompletionProvider,
2437 {
2438 self.inline_completion_provider =
2439 provider.map(|provider| RegisteredInlineCompletionProvider {
2440 _subscription: cx.observe(&provider, |this, _, cx| {
2441 if this.focus_handle.is_focused(cx) {
2442 this.update_visible_inline_completion(cx);
2443 }
2444 }),
2445 provider: Arc::new(provider),
2446 });
2447 self.refresh_inline_completion(false, false, cx);
2448 }
2449
2450 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2451 self.placeholder_text.as_deref()
2452 }
2453
2454 pub fn set_placeholder_text(
2455 &mut self,
2456 placeholder_text: impl Into<Arc<str>>,
2457 cx: &mut ViewContext<Self>,
2458 ) {
2459 let placeholder_text = Some(placeholder_text.into());
2460 if self.placeholder_text != placeholder_text {
2461 self.placeholder_text = placeholder_text;
2462 cx.notify();
2463 }
2464 }
2465
2466 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2467 self.cursor_shape = cursor_shape;
2468
2469 // Disrupt blink for immediate user feedback that the cursor shape has changed
2470 self.blink_manager.update(cx, BlinkManager::show_cursor);
2471
2472 cx.notify();
2473 }
2474
2475 pub fn set_current_line_highlight(
2476 &mut self,
2477 current_line_highlight: Option<CurrentLineHighlight>,
2478 ) {
2479 self.current_line_highlight = current_line_highlight;
2480 }
2481
2482 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2483 self.collapse_matches = collapse_matches;
2484 }
2485
2486 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2487 if self.collapse_matches {
2488 return range.start..range.start;
2489 }
2490 range.clone()
2491 }
2492
2493 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2494 if self.display_map.read(cx).clip_at_line_ends != clip {
2495 self.display_map
2496 .update(cx, |map, _| map.clip_at_line_ends = clip);
2497 }
2498 }
2499
2500 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2501 self.input_enabled = input_enabled;
2502 }
2503
2504 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2505 self.enable_inline_completions = enabled;
2506 }
2507
2508 pub fn set_autoindent(&mut self, autoindent: bool) {
2509 if autoindent {
2510 self.autoindent_mode = Some(AutoindentMode::EachLine);
2511 } else {
2512 self.autoindent_mode = None;
2513 }
2514 }
2515
2516 pub fn read_only(&self, cx: &AppContext) -> bool {
2517 self.read_only || self.buffer.read(cx).read_only()
2518 }
2519
2520 pub fn set_read_only(&mut self, read_only: bool) {
2521 self.read_only = read_only;
2522 }
2523
2524 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2525 self.use_autoclose = autoclose;
2526 }
2527
2528 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2529 self.use_auto_surround = auto_surround;
2530 }
2531
2532 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2533 self.auto_replace_emoji_shortcode = auto_replace;
2534 }
2535
2536 pub fn toggle_inline_completions(
2537 &mut self,
2538 _: &ToggleInlineCompletions,
2539 cx: &mut ViewContext<Self>,
2540 ) {
2541 if self.show_inline_completions_override.is_some() {
2542 self.set_show_inline_completions(None, cx);
2543 } else {
2544 let cursor = self.selections.newest_anchor().head();
2545 if let Some((buffer, cursor_buffer_position)) =
2546 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2547 {
2548 let show_inline_completions =
2549 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2550 self.set_show_inline_completions(Some(show_inline_completions), cx);
2551 }
2552 }
2553 }
2554
2555 pub fn set_show_inline_completions(
2556 &mut self,
2557 show_inline_completions: Option<bool>,
2558 cx: &mut ViewContext<Self>,
2559 ) {
2560 self.show_inline_completions_override = show_inline_completions;
2561 self.refresh_inline_completion(false, true, cx);
2562 }
2563
2564 fn should_show_inline_completions(
2565 &self,
2566 buffer: &Model<Buffer>,
2567 buffer_position: language::Anchor,
2568 cx: &AppContext,
2569 ) -> bool {
2570 if !self.snippet_stack.is_empty() {
2571 return false;
2572 }
2573
2574 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
2575 return false;
2576 }
2577
2578 if let Some(provider) = self.inline_completion_provider() {
2579 if let Some(show_inline_completions) = self.show_inline_completions_override {
2580 show_inline_completions
2581 } else {
2582 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2583 }
2584 } else {
2585 false
2586 }
2587 }
2588
2589 fn inline_completions_disabled_in_scope(
2590 &self,
2591 buffer: &Model<Buffer>,
2592 buffer_position: language::Anchor,
2593 cx: &AppContext,
2594 ) -> bool {
2595 let snapshot = buffer.read(cx).snapshot();
2596 let settings = snapshot.settings_at(buffer_position, cx);
2597
2598 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
2599 return false;
2600 };
2601
2602 scope.override_name().map_or(false, |scope_name| {
2603 settings
2604 .inline_completions_disabled_in
2605 .iter()
2606 .any(|s| s == scope_name)
2607 })
2608 }
2609
2610 pub fn set_use_modal_editing(&mut self, to: bool) {
2611 self.use_modal_editing = to;
2612 }
2613
2614 pub fn use_modal_editing(&self) -> bool {
2615 self.use_modal_editing
2616 }
2617
2618 fn selections_did_change(
2619 &mut self,
2620 local: bool,
2621 old_cursor_position: &Anchor,
2622 show_completions: bool,
2623 cx: &mut ViewContext<Self>,
2624 ) {
2625 cx.invalidate_character_coordinates();
2626
2627 // Copy selections to primary selection buffer
2628 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
2629 if local {
2630 let selections = self.selections.all::<usize>(cx);
2631 let buffer_handle = self.buffer.read(cx).read(cx);
2632
2633 let mut text = String::new();
2634 for (index, selection) in selections.iter().enumerate() {
2635 let text_for_selection = buffer_handle
2636 .text_for_range(selection.start..selection.end)
2637 .collect::<String>();
2638
2639 text.push_str(&text_for_selection);
2640 if index != selections.len() - 1 {
2641 text.push('\n');
2642 }
2643 }
2644
2645 if !text.is_empty() {
2646 cx.write_to_primary(ClipboardItem::new_string(text));
2647 }
2648 }
2649
2650 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2651 self.buffer.update(cx, |buffer, cx| {
2652 buffer.set_active_selections(
2653 &self.selections.disjoint_anchors(),
2654 self.selections.line_mode,
2655 self.cursor_shape,
2656 cx,
2657 )
2658 });
2659 }
2660 let display_map = self
2661 .display_map
2662 .update(cx, |display_map, cx| display_map.snapshot(cx));
2663 let buffer = &display_map.buffer_snapshot;
2664 self.add_selections_state = None;
2665 self.select_next_state = None;
2666 self.select_prev_state = None;
2667 self.select_larger_syntax_node_stack.clear();
2668 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2669 self.snippet_stack
2670 .invalidate(&self.selections.disjoint_anchors(), buffer);
2671 self.take_rename(false, cx);
2672
2673 let new_cursor_position = self.selections.newest_anchor().head();
2674
2675 self.push_to_nav_history(
2676 *old_cursor_position,
2677 Some(new_cursor_position.to_point(buffer)),
2678 cx,
2679 );
2680
2681 if local {
2682 let new_cursor_position = self.selections.newest_anchor().head();
2683 let mut context_menu = self.context_menu.write();
2684 let completion_menu = match context_menu.as_ref() {
2685 Some(ContextMenu::Completions(menu)) => Some(menu),
2686
2687 _ => {
2688 *context_menu = None;
2689 None
2690 }
2691 };
2692
2693 if let Some(completion_menu) = completion_menu {
2694 let cursor_position = new_cursor_position.to_offset(buffer);
2695 let (word_range, kind) =
2696 buffer.surrounding_word(completion_menu.initial_position, true);
2697 if kind == Some(CharKind::Word)
2698 && word_range.to_inclusive().contains(&cursor_position)
2699 {
2700 let mut completion_menu = completion_menu.clone();
2701 drop(context_menu);
2702
2703 let query = Self::completion_query(buffer, cursor_position);
2704 cx.spawn(move |this, mut cx| async move {
2705 completion_menu
2706 .filter(query.as_deref(), cx.background_executor().clone())
2707 .await;
2708
2709 this.update(&mut cx, |this, cx| {
2710 let mut context_menu = this.context_menu.write();
2711 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2712 return;
2713 };
2714
2715 if menu.id > completion_menu.id {
2716 return;
2717 }
2718
2719 *context_menu = Some(ContextMenu::Completions(completion_menu));
2720 drop(context_menu);
2721 cx.notify();
2722 })
2723 })
2724 .detach();
2725
2726 if show_completions {
2727 self.show_completions(&ShowCompletions { trigger: None }, cx);
2728 }
2729 } else {
2730 drop(context_menu);
2731 self.hide_context_menu(cx);
2732 }
2733 } else {
2734 drop(context_menu);
2735 }
2736
2737 hide_hover(self, cx);
2738
2739 if old_cursor_position.to_display_point(&display_map).row()
2740 != new_cursor_position.to_display_point(&display_map).row()
2741 {
2742 self.available_code_actions.take();
2743 }
2744 self.refresh_code_actions(cx);
2745 self.refresh_document_highlights(cx);
2746 refresh_matching_bracket_highlights(self, cx);
2747 self.discard_inline_completion(false, cx);
2748 linked_editing_ranges::refresh_linked_ranges(self, cx);
2749 if self.git_blame_inline_enabled {
2750 self.start_inline_blame_timer(cx);
2751 }
2752 }
2753
2754 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2755 cx.emit(EditorEvent::SelectionsChanged { local });
2756
2757 if self.selections.disjoint_anchors().len() == 1 {
2758 cx.emit(SearchEvent::ActiveMatchChanged)
2759 }
2760 cx.notify();
2761 }
2762
2763 pub fn change_selections<R>(
2764 &mut self,
2765 autoscroll: Option<Autoscroll>,
2766 cx: &mut ViewContext<Self>,
2767 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2768 ) -> R {
2769 self.change_selections_inner(autoscroll, true, cx, change)
2770 }
2771
2772 pub fn change_selections_inner<R>(
2773 &mut self,
2774 autoscroll: Option<Autoscroll>,
2775 request_completions: bool,
2776 cx: &mut ViewContext<Self>,
2777 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2778 ) -> R {
2779 let old_cursor_position = self.selections.newest_anchor().head();
2780 self.push_to_selection_history();
2781
2782 let (changed, result) = self.selections.change_with(cx, change);
2783
2784 if changed {
2785 if let Some(autoscroll) = autoscroll {
2786 self.request_autoscroll(autoscroll, cx);
2787 }
2788 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2789
2790 if self.should_open_signature_help_automatically(
2791 &old_cursor_position,
2792 self.signature_help_state.backspace_pressed(),
2793 cx,
2794 ) {
2795 self.show_signature_help(&ShowSignatureHelp, cx);
2796 }
2797 self.signature_help_state.set_backspace_pressed(false);
2798 }
2799
2800 result
2801 }
2802
2803 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2804 where
2805 I: IntoIterator<Item = (Range<S>, T)>,
2806 S: ToOffset,
2807 T: Into<Arc<str>>,
2808 {
2809 if self.read_only(cx) {
2810 return;
2811 }
2812
2813 self.buffer
2814 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2815 }
2816
2817 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2818 where
2819 I: IntoIterator<Item = (Range<S>, T)>,
2820 S: ToOffset,
2821 T: Into<Arc<str>>,
2822 {
2823 if self.read_only(cx) {
2824 return;
2825 }
2826
2827 self.buffer.update(cx, |buffer, cx| {
2828 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2829 });
2830 }
2831
2832 pub fn edit_with_block_indent<I, S, T>(
2833 &mut self,
2834 edits: I,
2835 original_indent_columns: Vec<u32>,
2836 cx: &mut ViewContext<Self>,
2837 ) where
2838 I: IntoIterator<Item = (Range<S>, T)>,
2839 S: ToOffset,
2840 T: Into<Arc<str>>,
2841 {
2842 if self.read_only(cx) {
2843 return;
2844 }
2845
2846 self.buffer.update(cx, |buffer, cx| {
2847 buffer.edit(
2848 edits,
2849 Some(AutoindentMode::Block {
2850 original_indent_columns,
2851 }),
2852 cx,
2853 )
2854 });
2855 }
2856
2857 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2858 self.hide_context_menu(cx);
2859
2860 match phase {
2861 SelectPhase::Begin {
2862 position,
2863 add,
2864 click_count,
2865 } => self.begin_selection(position, add, click_count, cx),
2866 SelectPhase::BeginColumnar {
2867 position,
2868 goal_column,
2869 reset,
2870 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2871 SelectPhase::Extend {
2872 position,
2873 click_count,
2874 } => self.extend_selection(position, click_count, cx),
2875 SelectPhase::Update {
2876 position,
2877 goal_column,
2878 scroll_delta,
2879 } => self.update_selection(position, goal_column, scroll_delta, cx),
2880 SelectPhase::End => self.end_selection(cx),
2881 }
2882 }
2883
2884 fn extend_selection(
2885 &mut self,
2886 position: DisplayPoint,
2887 click_count: usize,
2888 cx: &mut ViewContext<Self>,
2889 ) {
2890 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2891 let tail = self.selections.newest::<usize>(cx).tail();
2892 self.begin_selection(position, false, click_count, cx);
2893
2894 let position = position.to_offset(&display_map, Bias::Left);
2895 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2896
2897 let mut pending_selection = self
2898 .selections
2899 .pending_anchor()
2900 .expect("extend_selection not called with pending selection");
2901 if position >= tail {
2902 pending_selection.start = tail_anchor;
2903 } else {
2904 pending_selection.end = tail_anchor;
2905 pending_selection.reversed = true;
2906 }
2907
2908 let mut pending_mode = self.selections.pending_mode().unwrap();
2909 match &mut pending_mode {
2910 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2911 _ => {}
2912 }
2913
2914 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2915 s.set_pending(pending_selection, pending_mode)
2916 });
2917 }
2918
2919 fn begin_selection(
2920 &mut self,
2921 position: DisplayPoint,
2922 add: bool,
2923 click_count: usize,
2924 cx: &mut ViewContext<Self>,
2925 ) {
2926 if !self.focus_handle.is_focused(cx) {
2927 self.last_focused_descendant = None;
2928 cx.focus(&self.focus_handle);
2929 }
2930
2931 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2932 let buffer = &display_map.buffer_snapshot;
2933 let newest_selection = self.selections.newest_anchor().clone();
2934 let position = display_map.clip_point(position, Bias::Left);
2935
2936 let start;
2937 let end;
2938 let mode;
2939 let mut auto_scroll;
2940 match click_count {
2941 1 => {
2942 start = buffer.anchor_before(position.to_point(&display_map));
2943 end = start;
2944 mode = SelectMode::Character;
2945 auto_scroll = true;
2946 }
2947 2 => {
2948 let range = movement::surrounding_word(&display_map, position);
2949 start = buffer.anchor_before(range.start.to_point(&display_map));
2950 end = buffer.anchor_before(range.end.to_point(&display_map));
2951 mode = SelectMode::Word(start..end);
2952 auto_scroll = true;
2953 }
2954 3 => {
2955 let position = display_map
2956 .clip_point(position, Bias::Left)
2957 .to_point(&display_map);
2958 let line_start = display_map.prev_line_boundary(position).0;
2959 let next_line_start = buffer.clip_point(
2960 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2961 Bias::Left,
2962 );
2963 start = buffer.anchor_before(line_start);
2964 end = buffer.anchor_before(next_line_start);
2965 mode = SelectMode::Line(start..end);
2966 auto_scroll = true;
2967 }
2968 _ => {
2969 start = buffer.anchor_before(0);
2970 end = buffer.anchor_before(buffer.len());
2971 mode = SelectMode::All;
2972 auto_scroll = false;
2973 }
2974 }
2975 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2976
2977 let point_to_delete: Option<usize> = {
2978 let selected_points: Vec<Selection<Point>> =
2979 self.selections.disjoint_in_range(start..end, cx);
2980
2981 if !add || click_count > 1 {
2982 None
2983 } else if !selected_points.is_empty() {
2984 Some(selected_points[0].id)
2985 } else {
2986 let clicked_point_already_selected =
2987 self.selections.disjoint.iter().find(|selection| {
2988 selection.start.to_point(buffer) == start.to_point(buffer)
2989 || selection.end.to_point(buffer) == end.to_point(buffer)
2990 });
2991
2992 clicked_point_already_selected.map(|selection| selection.id)
2993 }
2994 };
2995
2996 let selections_count = self.selections.count();
2997
2998 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2999 if let Some(point_to_delete) = point_to_delete {
3000 s.delete(point_to_delete);
3001
3002 if selections_count == 1 {
3003 s.set_pending_anchor_range(start..end, mode);
3004 }
3005 } else {
3006 if !add {
3007 s.clear_disjoint();
3008 } else if click_count > 1 {
3009 s.delete(newest_selection.id)
3010 }
3011
3012 s.set_pending_anchor_range(start..end, mode);
3013 }
3014 });
3015 }
3016
3017 fn begin_columnar_selection(
3018 &mut self,
3019 position: DisplayPoint,
3020 goal_column: u32,
3021 reset: bool,
3022 cx: &mut ViewContext<Self>,
3023 ) {
3024 if !self.focus_handle.is_focused(cx) {
3025 self.last_focused_descendant = None;
3026 cx.focus(&self.focus_handle);
3027 }
3028
3029 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3030
3031 if reset {
3032 let pointer_position = display_map
3033 .buffer_snapshot
3034 .anchor_before(position.to_point(&display_map));
3035
3036 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
3037 s.clear_disjoint();
3038 s.set_pending_anchor_range(
3039 pointer_position..pointer_position,
3040 SelectMode::Character,
3041 );
3042 });
3043 }
3044
3045 let tail = self.selections.newest::<Point>(cx).tail();
3046 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
3047
3048 if !reset {
3049 self.select_columns(
3050 tail.to_display_point(&display_map),
3051 position,
3052 goal_column,
3053 &display_map,
3054 cx,
3055 );
3056 }
3057 }
3058
3059 fn update_selection(
3060 &mut self,
3061 position: DisplayPoint,
3062 goal_column: u32,
3063 scroll_delta: gpui::Point<f32>,
3064 cx: &mut ViewContext<Self>,
3065 ) {
3066 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3067
3068 if let Some(tail) = self.columnar_selection_tail.as_ref() {
3069 let tail = tail.to_display_point(&display_map);
3070 self.select_columns(tail, position, goal_column, &display_map, cx);
3071 } else if let Some(mut pending) = self.selections.pending_anchor() {
3072 let buffer = self.buffer.read(cx).snapshot(cx);
3073 let head;
3074 let tail;
3075 let mode = self.selections.pending_mode().unwrap();
3076 match &mode {
3077 SelectMode::Character => {
3078 head = position.to_point(&display_map);
3079 tail = pending.tail().to_point(&buffer);
3080 }
3081 SelectMode::Word(original_range) => {
3082 let original_display_range = original_range.start.to_display_point(&display_map)
3083 ..original_range.end.to_display_point(&display_map);
3084 let original_buffer_range = original_display_range.start.to_point(&display_map)
3085 ..original_display_range.end.to_point(&display_map);
3086 if movement::is_inside_word(&display_map, position)
3087 || original_display_range.contains(&position)
3088 {
3089 let word_range = movement::surrounding_word(&display_map, position);
3090 if word_range.start < original_display_range.start {
3091 head = word_range.start.to_point(&display_map);
3092 } else {
3093 head = word_range.end.to_point(&display_map);
3094 }
3095 } else {
3096 head = position.to_point(&display_map);
3097 }
3098
3099 if head <= original_buffer_range.start {
3100 tail = original_buffer_range.end;
3101 } else {
3102 tail = original_buffer_range.start;
3103 }
3104 }
3105 SelectMode::Line(original_range) => {
3106 let original_range = original_range.to_point(&display_map.buffer_snapshot);
3107
3108 let position = display_map
3109 .clip_point(position, Bias::Left)
3110 .to_point(&display_map);
3111 let line_start = display_map.prev_line_boundary(position).0;
3112 let next_line_start = buffer.clip_point(
3113 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3114 Bias::Left,
3115 );
3116
3117 if line_start < original_range.start {
3118 head = line_start
3119 } else {
3120 head = next_line_start
3121 }
3122
3123 if head <= original_range.start {
3124 tail = original_range.end;
3125 } else {
3126 tail = original_range.start;
3127 }
3128 }
3129 SelectMode::All => {
3130 return;
3131 }
3132 };
3133
3134 if head < tail {
3135 pending.start = buffer.anchor_before(head);
3136 pending.end = buffer.anchor_before(tail);
3137 pending.reversed = true;
3138 } else {
3139 pending.start = buffer.anchor_before(tail);
3140 pending.end = buffer.anchor_before(head);
3141 pending.reversed = false;
3142 }
3143
3144 self.change_selections(None, cx, |s| {
3145 s.set_pending(pending, mode);
3146 });
3147 } else {
3148 log::error!("update_selection dispatched with no pending selection");
3149 return;
3150 }
3151
3152 self.apply_scroll_delta(scroll_delta, cx);
3153 cx.notify();
3154 }
3155
3156 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3157 self.columnar_selection_tail.take();
3158 if self.selections.pending_anchor().is_some() {
3159 let selections = self.selections.all::<usize>(cx);
3160 self.change_selections(None, cx, |s| {
3161 s.select(selections);
3162 s.clear_pending();
3163 });
3164 }
3165 }
3166
3167 fn select_columns(
3168 &mut self,
3169 tail: DisplayPoint,
3170 head: DisplayPoint,
3171 goal_column: u32,
3172 display_map: &DisplaySnapshot,
3173 cx: &mut ViewContext<Self>,
3174 ) {
3175 let start_row = cmp::min(tail.row(), head.row());
3176 let end_row = cmp::max(tail.row(), head.row());
3177 let start_column = cmp::min(tail.column(), goal_column);
3178 let end_column = cmp::max(tail.column(), goal_column);
3179 let reversed = start_column < tail.column();
3180
3181 let selection_ranges = (start_row.0..=end_row.0)
3182 .map(DisplayRow)
3183 .filter_map(|row| {
3184 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3185 let start = display_map
3186 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3187 .to_point(display_map);
3188 let end = display_map
3189 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3190 .to_point(display_map);
3191 if reversed {
3192 Some(end..start)
3193 } else {
3194 Some(start..end)
3195 }
3196 } else {
3197 None
3198 }
3199 })
3200 .collect::<Vec<_>>();
3201
3202 self.change_selections(None, cx, |s| {
3203 s.select_ranges(selection_ranges);
3204 });
3205 cx.notify();
3206 }
3207
3208 pub fn has_pending_nonempty_selection(&self) -> bool {
3209 let pending_nonempty_selection = match self.selections.pending_anchor() {
3210 Some(Selection { start, end, .. }) => start != end,
3211 None => false,
3212 };
3213
3214 pending_nonempty_selection
3215 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3216 }
3217
3218 pub fn has_pending_selection(&self) -> bool {
3219 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3220 }
3221
3222 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3223 if self.clear_expanded_diff_hunks(cx) {
3224 cx.notify();
3225 return;
3226 }
3227 if self.dismiss_menus_and_popups(true, cx) {
3228 return;
3229 }
3230
3231 if self.mode == EditorMode::Full
3232 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3233 {
3234 return;
3235 }
3236
3237 cx.propagate();
3238 }
3239
3240 pub fn dismiss_menus_and_popups(
3241 &mut self,
3242 should_report_inline_completion_event: bool,
3243 cx: &mut ViewContext<Self>,
3244 ) -> bool {
3245 if self.take_rename(false, cx).is_some() {
3246 return true;
3247 }
3248
3249 if hide_hover(self, cx) {
3250 return true;
3251 }
3252
3253 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3254 return true;
3255 }
3256
3257 if self.hide_context_menu(cx).is_some() {
3258 return true;
3259 }
3260
3261 if self.mouse_context_menu.take().is_some() {
3262 return true;
3263 }
3264
3265 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3266 return true;
3267 }
3268
3269 if self.snippet_stack.pop().is_some() {
3270 return true;
3271 }
3272
3273 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3274 self.dismiss_diagnostics(cx);
3275 return true;
3276 }
3277
3278 false
3279 }
3280
3281 fn linked_editing_ranges_for(
3282 &self,
3283 selection: Range<text::Anchor>,
3284 cx: &AppContext,
3285 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3286 if self.linked_edit_ranges.is_empty() {
3287 return None;
3288 }
3289 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3290 selection.end.buffer_id.and_then(|end_buffer_id| {
3291 if selection.start.buffer_id != Some(end_buffer_id) {
3292 return None;
3293 }
3294 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3295 let snapshot = buffer.read(cx).snapshot();
3296 self.linked_edit_ranges
3297 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3298 .map(|ranges| (ranges, snapshot, buffer))
3299 })?;
3300 use text::ToOffset as TO;
3301 // find offset from the start of current range to current cursor position
3302 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3303
3304 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3305 let start_difference = start_offset - start_byte_offset;
3306 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3307 let end_difference = end_offset - start_byte_offset;
3308 // Current range has associated linked ranges.
3309 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3310 for range in linked_ranges.iter() {
3311 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3312 let end_offset = start_offset + end_difference;
3313 let start_offset = start_offset + start_difference;
3314 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3315 continue;
3316 }
3317 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3318 if s.start.buffer_id != selection.start.buffer_id
3319 || s.end.buffer_id != selection.end.buffer_id
3320 {
3321 return false;
3322 }
3323 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3324 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3325 }) {
3326 continue;
3327 }
3328 let start = buffer_snapshot.anchor_after(start_offset);
3329 let end = buffer_snapshot.anchor_after(end_offset);
3330 linked_edits
3331 .entry(buffer.clone())
3332 .or_default()
3333 .push(start..end);
3334 }
3335 Some(linked_edits)
3336 }
3337
3338 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3339 let text: Arc<str> = text.into();
3340
3341 if self.read_only(cx) {
3342 return;
3343 }
3344
3345 let selections = self.selections.all_adjusted(cx);
3346 let mut bracket_inserted = false;
3347 let mut edits = Vec::new();
3348 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3349 let mut new_selections = Vec::with_capacity(selections.len());
3350 let mut new_autoclose_regions = Vec::new();
3351 let snapshot = self.buffer.read(cx).read(cx);
3352
3353 for (selection, autoclose_region) in
3354 self.selections_with_autoclose_regions(selections, &snapshot)
3355 {
3356 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3357 // Determine if the inserted text matches the opening or closing
3358 // bracket of any of this language's bracket pairs.
3359 let mut bracket_pair = None;
3360 let mut is_bracket_pair_start = false;
3361 let mut is_bracket_pair_end = false;
3362 if !text.is_empty() {
3363 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3364 // and they are removing the character that triggered IME popup.
3365 for (pair, enabled) in scope.brackets() {
3366 if !pair.close && !pair.surround {
3367 continue;
3368 }
3369
3370 if enabled && pair.start.ends_with(text.as_ref()) {
3371 let prefix_len = pair.start.len() - text.len();
3372 let preceding_text_matches_prefix = prefix_len == 0
3373 || (selection.start.column >= (prefix_len as u32)
3374 && snapshot.contains_str_at(
3375 Point::new(
3376 selection.start.row,
3377 selection.start.column - (prefix_len as u32),
3378 ),
3379 &pair.start[..prefix_len],
3380 ));
3381 if preceding_text_matches_prefix {
3382 bracket_pair = Some(pair.clone());
3383 is_bracket_pair_start = true;
3384 break;
3385 }
3386 }
3387 if pair.end.as_str() == text.as_ref() {
3388 bracket_pair = Some(pair.clone());
3389 is_bracket_pair_end = true;
3390 break;
3391 }
3392 }
3393 }
3394
3395 if let Some(bracket_pair) = bracket_pair {
3396 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3397 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3398 let auto_surround =
3399 self.use_auto_surround && snapshot_settings.use_auto_surround;
3400 if selection.is_empty() {
3401 if is_bracket_pair_start {
3402 // If the inserted text is a suffix of an opening bracket and the
3403 // selection is preceded by the rest of the opening bracket, then
3404 // insert the closing bracket.
3405 let following_text_allows_autoclose = snapshot
3406 .chars_at(selection.start)
3407 .next()
3408 .map_or(true, |c| scope.should_autoclose_before(c));
3409
3410 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3411 && bracket_pair.start.len() == 1
3412 {
3413 let target = bracket_pair.start.chars().next().unwrap();
3414 let current_line_count = snapshot
3415 .reversed_chars_at(selection.start)
3416 .take_while(|&c| c != '\n')
3417 .filter(|&c| c == target)
3418 .count();
3419 current_line_count % 2 == 1
3420 } else {
3421 false
3422 };
3423
3424 if autoclose
3425 && bracket_pair.close
3426 && following_text_allows_autoclose
3427 && !is_closing_quote
3428 {
3429 let anchor = snapshot.anchor_before(selection.end);
3430 new_selections.push((selection.map(|_| anchor), text.len()));
3431 new_autoclose_regions.push((
3432 anchor,
3433 text.len(),
3434 selection.id,
3435 bracket_pair.clone(),
3436 ));
3437 edits.push((
3438 selection.range(),
3439 format!("{}{}", text, bracket_pair.end).into(),
3440 ));
3441 bracket_inserted = true;
3442 continue;
3443 }
3444 }
3445
3446 if let Some(region) = autoclose_region {
3447 // If the selection is followed by an auto-inserted closing bracket,
3448 // then don't insert that closing bracket again; just move the selection
3449 // past the closing bracket.
3450 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3451 && text.as_ref() == region.pair.end.as_str();
3452 if should_skip {
3453 let anchor = snapshot.anchor_after(selection.end);
3454 new_selections
3455 .push((selection.map(|_| anchor), region.pair.end.len()));
3456 continue;
3457 }
3458 }
3459
3460 let always_treat_brackets_as_autoclosed = snapshot
3461 .settings_at(selection.start, cx)
3462 .always_treat_brackets_as_autoclosed;
3463 if always_treat_brackets_as_autoclosed
3464 && is_bracket_pair_end
3465 && snapshot.contains_str_at(selection.end, text.as_ref())
3466 {
3467 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3468 // and the inserted text is a closing bracket and the selection is followed
3469 // by the closing bracket then move the selection past the closing bracket.
3470 let anchor = snapshot.anchor_after(selection.end);
3471 new_selections.push((selection.map(|_| anchor), text.len()));
3472 continue;
3473 }
3474 }
3475 // If an opening bracket is 1 character long and is typed while
3476 // text is selected, then surround that text with the bracket pair.
3477 else if auto_surround
3478 && bracket_pair.surround
3479 && is_bracket_pair_start
3480 && bracket_pair.start.chars().count() == 1
3481 {
3482 edits.push((selection.start..selection.start, text.clone()));
3483 edits.push((
3484 selection.end..selection.end,
3485 bracket_pair.end.as_str().into(),
3486 ));
3487 bracket_inserted = true;
3488 new_selections.push((
3489 Selection {
3490 id: selection.id,
3491 start: snapshot.anchor_after(selection.start),
3492 end: snapshot.anchor_before(selection.end),
3493 reversed: selection.reversed,
3494 goal: selection.goal,
3495 },
3496 0,
3497 ));
3498 continue;
3499 }
3500 }
3501 }
3502
3503 if self.auto_replace_emoji_shortcode
3504 && selection.is_empty()
3505 && text.as_ref().ends_with(':')
3506 {
3507 if let Some(possible_emoji_short_code) =
3508 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3509 {
3510 if !possible_emoji_short_code.is_empty() {
3511 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3512 let emoji_shortcode_start = Point::new(
3513 selection.start.row,
3514 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3515 );
3516
3517 // Remove shortcode from buffer
3518 edits.push((
3519 emoji_shortcode_start..selection.start,
3520 "".to_string().into(),
3521 ));
3522 new_selections.push((
3523 Selection {
3524 id: selection.id,
3525 start: snapshot.anchor_after(emoji_shortcode_start),
3526 end: snapshot.anchor_before(selection.start),
3527 reversed: selection.reversed,
3528 goal: selection.goal,
3529 },
3530 0,
3531 ));
3532
3533 // Insert emoji
3534 let selection_start_anchor = snapshot.anchor_after(selection.start);
3535 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3536 edits.push((selection.start..selection.end, emoji.to_string().into()));
3537
3538 continue;
3539 }
3540 }
3541 }
3542 }
3543
3544 // If not handling any auto-close operation, then just replace the selected
3545 // text with the given input and move the selection to the end of the
3546 // newly inserted text.
3547 let anchor = snapshot.anchor_after(selection.end);
3548 if !self.linked_edit_ranges.is_empty() {
3549 let start_anchor = snapshot.anchor_before(selection.start);
3550
3551 let is_word_char = text.chars().next().map_or(true, |char| {
3552 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3553 classifier.is_word(char)
3554 });
3555
3556 if is_word_char {
3557 if let Some(ranges) = self
3558 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3559 {
3560 for (buffer, edits) in ranges {
3561 linked_edits
3562 .entry(buffer.clone())
3563 .or_default()
3564 .extend(edits.into_iter().map(|range| (range, text.clone())));
3565 }
3566 }
3567 }
3568 }
3569
3570 new_selections.push((selection.map(|_| anchor), 0));
3571 edits.push((selection.start..selection.end, text.clone()));
3572 }
3573
3574 drop(snapshot);
3575
3576 self.transact(cx, |this, cx| {
3577 this.buffer.update(cx, |buffer, cx| {
3578 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3579 });
3580 for (buffer, edits) in linked_edits {
3581 buffer.update(cx, |buffer, cx| {
3582 let snapshot = buffer.snapshot();
3583 let edits = edits
3584 .into_iter()
3585 .map(|(range, text)| {
3586 use text::ToPoint as TP;
3587 let end_point = TP::to_point(&range.end, &snapshot);
3588 let start_point = TP::to_point(&range.start, &snapshot);
3589 (start_point..end_point, text)
3590 })
3591 .sorted_by_key(|(range, _)| range.start)
3592 .collect::<Vec<_>>();
3593 buffer.edit(edits, None, cx);
3594 })
3595 }
3596 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3597 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3598 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
3599 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
3600 .zip(new_selection_deltas)
3601 .map(|(selection, delta)| Selection {
3602 id: selection.id,
3603 start: selection.start + delta,
3604 end: selection.end + delta,
3605 reversed: selection.reversed,
3606 goal: SelectionGoal::None,
3607 })
3608 .collect::<Vec<_>>();
3609
3610 let mut i = 0;
3611 for (position, delta, selection_id, pair) in new_autoclose_regions {
3612 let position = position.to_offset(&map.buffer_snapshot) + delta;
3613 let start = map.buffer_snapshot.anchor_before(position);
3614 let end = map.buffer_snapshot.anchor_after(position);
3615 while let Some(existing_state) = this.autoclose_regions.get(i) {
3616 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
3617 Ordering::Less => i += 1,
3618 Ordering::Greater => break,
3619 Ordering::Equal => {
3620 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
3621 Ordering::Less => i += 1,
3622 Ordering::Equal => break,
3623 Ordering::Greater => break,
3624 }
3625 }
3626 }
3627 }
3628 this.autoclose_regions.insert(
3629 i,
3630 AutocloseRegion {
3631 selection_id,
3632 range: start..end,
3633 pair,
3634 },
3635 );
3636 }
3637
3638 let had_active_inline_completion = this.has_active_inline_completion(cx);
3639 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3640 s.select(new_selections)
3641 });
3642
3643 if !bracket_inserted {
3644 if let Some(on_type_format_task) =
3645 this.trigger_on_type_formatting(text.to_string(), cx)
3646 {
3647 on_type_format_task.detach_and_log_err(cx);
3648 }
3649 }
3650
3651 let editor_settings = EditorSettings::get_global(cx);
3652 if bracket_inserted
3653 && (editor_settings.auto_signature_help
3654 || editor_settings.show_signature_help_after_edits)
3655 {
3656 this.show_signature_help(&ShowSignatureHelp, cx);
3657 }
3658
3659 let trigger_in_words = !had_active_inline_completion;
3660 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3661 linked_editing_ranges::refresh_linked_ranges(this, cx);
3662 this.refresh_inline_completion(true, false, cx);
3663 });
3664 }
3665
3666 fn find_possible_emoji_shortcode_at_position(
3667 snapshot: &MultiBufferSnapshot,
3668 position: Point,
3669 ) -> Option<String> {
3670 let mut chars = Vec::new();
3671 let mut found_colon = false;
3672 for char in snapshot.reversed_chars_at(position).take(100) {
3673 // Found a possible emoji shortcode in the middle of the buffer
3674 if found_colon {
3675 if char.is_whitespace() {
3676 chars.reverse();
3677 return Some(chars.iter().collect());
3678 }
3679 // If the previous character is not a whitespace, we are in the middle of a word
3680 // and we only want to complete the shortcode if the word is made up of other emojis
3681 let mut containing_word = String::new();
3682 for ch in snapshot
3683 .reversed_chars_at(position)
3684 .skip(chars.len() + 1)
3685 .take(100)
3686 {
3687 if ch.is_whitespace() {
3688 break;
3689 }
3690 containing_word.push(ch);
3691 }
3692 let containing_word = containing_word.chars().rev().collect::<String>();
3693 if util::word_consists_of_emojis(containing_word.as_str()) {
3694 chars.reverse();
3695 return Some(chars.iter().collect());
3696 }
3697 }
3698
3699 if char.is_whitespace() || !char.is_ascii() {
3700 return None;
3701 }
3702 if char == ':' {
3703 found_colon = true;
3704 } else {
3705 chars.push(char);
3706 }
3707 }
3708 // Found a possible emoji shortcode at the beginning of the buffer
3709 chars.reverse();
3710 Some(chars.iter().collect())
3711 }
3712
3713 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3714 self.transact(cx, |this, cx| {
3715 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3716 let selections = this.selections.all::<usize>(cx);
3717 let multi_buffer = this.buffer.read(cx);
3718 let buffer = multi_buffer.snapshot(cx);
3719 selections
3720 .iter()
3721 .map(|selection| {
3722 let start_point = selection.start.to_point(&buffer);
3723 let mut indent =
3724 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3725 indent.len = cmp::min(indent.len, start_point.column);
3726 let start = selection.start;
3727 let end = selection.end;
3728 let selection_is_empty = start == end;
3729 let language_scope = buffer.language_scope_at(start);
3730 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3731 &language_scope
3732 {
3733 let leading_whitespace_len = buffer
3734 .reversed_chars_at(start)
3735 .take_while(|c| c.is_whitespace() && *c != '\n')
3736 .map(|c| c.len_utf8())
3737 .sum::<usize>();
3738
3739 let trailing_whitespace_len = buffer
3740 .chars_at(end)
3741 .take_while(|c| c.is_whitespace() && *c != '\n')
3742 .map(|c| c.len_utf8())
3743 .sum::<usize>();
3744
3745 let insert_extra_newline =
3746 language.brackets().any(|(pair, enabled)| {
3747 let pair_start = pair.start.trim_end();
3748 let pair_end = pair.end.trim_start();
3749
3750 enabled
3751 && pair.newline
3752 && buffer.contains_str_at(
3753 end + trailing_whitespace_len,
3754 pair_end,
3755 )
3756 && buffer.contains_str_at(
3757 (start - leading_whitespace_len)
3758 .saturating_sub(pair_start.len()),
3759 pair_start,
3760 )
3761 });
3762
3763 // Comment extension on newline is allowed only for cursor selections
3764 let comment_delimiter = maybe!({
3765 if !selection_is_empty {
3766 return None;
3767 }
3768
3769 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3770 return None;
3771 }
3772
3773 let delimiters = language.line_comment_prefixes();
3774 let max_len_of_delimiter =
3775 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3776 let (snapshot, range) =
3777 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3778
3779 let mut index_of_first_non_whitespace = 0;
3780 let comment_candidate = snapshot
3781 .chars_for_range(range)
3782 .skip_while(|c| {
3783 let should_skip = c.is_whitespace();
3784 if should_skip {
3785 index_of_first_non_whitespace += 1;
3786 }
3787 should_skip
3788 })
3789 .take(max_len_of_delimiter)
3790 .collect::<String>();
3791 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3792 comment_candidate.starts_with(comment_prefix.as_ref())
3793 })?;
3794 let cursor_is_placed_after_comment_marker =
3795 index_of_first_non_whitespace + comment_prefix.len()
3796 <= start_point.column as usize;
3797 if cursor_is_placed_after_comment_marker {
3798 Some(comment_prefix.clone())
3799 } else {
3800 None
3801 }
3802 });
3803 (comment_delimiter, insert_extra_newline)
3804 } else {
3805 (None, false)
3806 };
3807
3808 let capacity_for_delimiter = comment_delimiter
3809 .as_deref()
3810 .map(str::len)
3811 .unwrap_or_default();
3812 let mut new_text =
3813 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3814 new_text.push('\n');
3815 new_text.extend(indent.chars());
3816 if let Some(delimiter) = &comment_delimiter {
3817 new_text.push_str(delimiter);
3818 }
3819 if insert_extra_newline {
3820 new_text = new_text.repeat(2);
3821 }
3822
3823 let anchor = buffer.anchor_after(end);
3824 let new_selection = selection.map(|_| anchor);
3825 (
3826 (start..end, new_text),
3827 (insert_extra_newline, new_selection),
3828 )
3829 })
3830 .unzip()
3831 };
3832
3833 this.edit_with_autoindent(edits, cx);
3834 let buffer = this.buffer.read(cx).snapshot(cx);
3835 let new_selections = selection_fixup_info
3836 .into_iter()
3837 .map(|(extra_newline_inserted, new_selection)| {
3838 let mut cursor = new_selection.end.to_point(&buffer);
3839 if extra_newline_inserted {
3840 cursor.row -= 1;
3841 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3842 }
3843 new_selection.map(|_| cursor)
3844 })
3845 .collect();
3846
3847 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3848 this.refresh_inline_completion(true, false, cx);
3849 });
3850 }
3851
3852 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3853 let buffer = self.buffer.read(cx);
3854 let snapshot = buffer.snapshot(cx);
3855
3856 let mut edits = Vec::new();
3857 let mut rows = Vec::new();
3858
3859 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3860 let cursor = selection.head();
3861 let row = cursor.row;
3862
3863 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3864
3865 let newline = "\n".to_string();
3866 edits.push((start_of_line..start_of_line, newline));
3867
3868 rows.push(row + rows_inserted as u32);
3869 }
3870
3871 self.transact(cx, |editor, cx| {
3872 editor.edit(edits, cx);
3873
3874 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3875 let mut index = 0;
3876 s.move_cursors_with(|map, _, _| {
3877 let row = rows[index];
3878 index += 1;
3879
3880 let point = Point::new(row, 0);
3881 let boundary = map.next_line_boundary(point).1;
3882 let clipped = map.clip_point(boundary, Bias::Left);
3883
3884 (clipped, SelectionGoal::None)
3885 });
3886 });
3887
3888 let mut indent_edits = Vec::new();
3889 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3890 for row in rows {
3891 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3892 for (row, indent) in indents {
3893 if indent.len == 0 {
3894 continue;
3895 }
3896
3897 let text = match indent.kind {
3898 IndentKind::Space => " ".repeat(indent.len as usize),
3899 IndentKind::Tab => "\t".repeat(indent.len as usize),
3900 };
3901 let point = Point::new(row.0, 0);
3902 indent_edits.push((point..point, text));
3903 }
3904 }
3905 editor.edit(indent_edits, cx);
3906 });
3907 }
3908
3909 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3910 let buffer = self.buffer.read(cx);
3911 let snapshot = buffer.snapshot(cx);
3912
3913 let mut edits = Vec::new();
3914 let mut rows = Vec::new();
3915 let mut rows_inserted = 0;
3916
3917 for selection in self.selections.all_adjusted(cx) {
3918 let cursor = selection.head();
3919 let row = cursor.row;
3920
3921 let point = Point::new(row + 1, 0);
3922 let start_of_line = snapshot.clip_point(point, Bias::Left);
3923
3924 let newline = "\n".to_string();
3925 edits.push((start_of_line..start_of_line, newline));
3926
3927 rows_inserted += 1;
3928 rows.push(row + rows_inserted);
3929 }
3930
3931 self.transact(cx, |editor, cx| {
3932 editor.edit(edits, cx);
3933
3934 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3935 let mut index = 0;
3936 s.move_cursors_with(|map, _, _| {
3937 let row = rows[index];
3938 index += 1;
3939
3940 let point = Point::new(row, 0);
3941 let boundary = map.next_line_boundary(point).1;
3942 let clipped = map.clip_point(boundary, Bias::Left);
3943
3944 (clipped, SelectionGoal::None)
3945 });
3946 });
3947
3948 let mut indent_edits = Vec::new();
3949 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3950 for row in rows {
3951 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3952 for (row, indent) in indents {
3953 if indent.len == 0 {
3954 continue;
3955 }
3956
3957 let text = match indent.kind {
3958 IndentKind::Space => " ".repeat(indent.len as usize),
3959 IndentKind::Tab => "\t".repeat(indent.len as usize),
3960 };
3961 let point = Point::new(row.0, 0);
3962 indent_edits.push((point..point, text));
3963 }
3964 }
3965 editor.edit(indent_edits, cx);
3966 });
3967 }
3968
3969 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3970 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3971 original_indent_columns: Vec::new(),
3972 });
3973 self.insert_with_autoindent_mode(text, autoindent, cx);
3974 }
3975
3976 fn insert_with_autoindent_mode(
3977 &mut self,
3978 text: &str,
3979 autoindent_mode: Option<AutoindentMode>,
3980 cx: &mut ViewContext<Self>,
3981 ) {
3982 if self.read_only(cx) {
3983 return;
3984 }
3985
3986 let text: Arc<str> = text.into();
3987 self.transact(cx, |this, cx| {
3988 let old_selections = this.selections.all_adjusted(cx);
3989 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3990 let anchors = {
3991 let snapshot = buffer.read(cx);
3992 old_selections
3993 .iter()
3994 .map(|s| {
3995 let anchor = snapshot.anchor_after(s.head());
3996 s.map(|_| anchor)
3997 })
3998 .collect::<Vec<_>>()
3999 };
4000 buffer.edit(
4001 old_selections
4002 .iter()
4003 .map(|s| (s.start..s.end, text.clone())),
4004 autoindent_mode,
4005 cx,
4006 );
4007 anchors
4008 });
4009
4010 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4011 s.select_anchors(selection_anchors);
4012 })
4013 });
4014 }
4015
4016 fn trigger_completion_on_input(
4017 &mut self,
4018 text: &str,
4019 trigger_in_words: bool,
4020 cx: &mut ViewContext<Self>,
4021 ) {
4022 if self.is_completion_trigger(text, trigger_in_words, cx) {
4023 self.show_completions(
4024 &ShowCompletions {
4025 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
4026 },
4027 cx,
4028 );
4029 } else {
4030 self.hide_context_menu(cx);
4031 }
4032 }
4033
4034 fn is_completion_trigger(
4035 &self,
4036 text: &str,
4037 trigger_in_words: bool,
4038 cx: &mut ViewContext<Self>,
4039 ) -> bool {
4040 let position = self.selections.newest_anchor().head();
4041 let multibuffer = self.buffer.read(cx);
4042 let Some(buffer) = position
4043 .buffer_id
4044 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
4045 else {
4046 return false;
4047 };
4048
4049 if let Some(completion_provider) = &self.completion_provider {
4050 completion_provider.is_completion_trigger(
4051 &buffer,
4052 position.text_anchor,
4053 text,
4054 trigger_in_words,
4055 cx,
4056 )
4057 } else {
4058 false
4059 }
4060 }
4061
4062 /// If any empty selections is touching the start of its innermost containing autoclose
4063 /// region, expand it to select the brackets.
4064 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
4065 let selections = self.selections.all::<usize>(cx);
4066 let buffer = self.buffer.read(cx).read(cx);
4067 let new_selections = self
4068 .selections_with_autoclose_regions(selections, &buffer)
4069 .map(|(mut selection, region)| {
4070 if !selection.is_empty() {
4071 return selection;
4072 }
4073
4074 if let Some(region) = region {
4075 let mut range = region.range.to_offset(&buffer);
4076 if selection.start == range.start && range.start >= region.pair.start.len() {
4077 range.start -= region.pair.start.len();
4078 if buffer.contains_str_at(range.start, ®ion.pair.start)
4079 && buffer.contains_str_at(range.end, ®ion.pair.end)
4080 {
4081 range.end += region.pair.end.len();
4082 selection.start = range.start;
4083 selection.end = range.end;
4084
4085 return selection;
4086 }
4087 }
4088 }
4089
4090 let always_treat_brackets_as_autoclosed = buffer
4091 .settings_at(selection.start, cx)
4092 .always_treat_brackets_as_autoclosed;
4093
4094 if !always_treat_brackets_as_autoclosed {
4095 return selection;
4096 }
4097
4098 if let Some(scope) = buffer.language_scope_at(selection.start) {
4099 for (pair, enabled) in scope.brackets() {
4100 if !enabled || !pair.close {
4101 continue;
4102 }
4103
4104 if buffer.contains_str_at(selection.start, &pair.end) {
4105 let pair_start_len = pair.start.len();
4106 if buffer.contains_str_at(
4107 selection.start.saturating_sub(pair_start_len),
4108 &pair.start,
4109 ) {
4110 selection.start -= pair_start_len;
4111 selection.end += pair.end.len();
4112
4113 return selection;
4114 }
4115 }
4116 }
4117 }
4118
4119 selection
4120 })
4121 .collect();
4122
4123 drop(buffer);
4124 self.change_selections(None, cx, |selections| selections.select(new_selections));
4125 }
4126
4127 /// Iterate the given selections, and for each one, find the smallest surrounding
4128 /// autoclose region. This uses the ordering of the selections and the autoclose
4129 /// regions to avoid repeated comparisons.
4130 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4131 &'a self,
4132 selections: impl IntoIterator<Item = Selection<D>>,
4133 buffer: &'a MultiBufferSnapshot,
4134 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4135 let mut i = 0;
4136 let mut regions = self.autoclose_regions.as_slice();
4137 selections.into_iter().map(move |selection| {
4138 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4139
4140 let mut enclosing = None;
4141 while let Some(pair_state) = regions.get(i) {
4142 if pair_state.range.end.to_offset(buffer) < range.start {
4143 regions = ®ions[i + 1..];
4144 i = 0;
4145 } else if pair_state.range.start.to_offset(buffer) > range.end {
4146 break;
4147 } else {
4148 if pair_state.selection_id == selection.id {
4149 enclosing = Some(pair_state);
4150 }
4151 i += 1;
4152 }
4153 }
4154
4155 (selection, enclosing)
4156 })
4157 }
4158
4159 /// Remove any autoclose regions that no longer contain their selection.
4160 fn invalidate_autoclose_regions(
4161 &mut self,
4162 mut selections: &[Selection<Anchor>],
4163 buffer: &MultiBufferSnapshot,
4164 ) {
4165 self.autoclose_regions.retain(|state| {
4166 let mut i = 0;
4167 while let Some(selection) = selections.get(i) {
4168 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4169 selections = &selections[1..];
4170 continue;
4171 }
4172 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4173 break;
4174 }
4175 if selection.id == state.selection_id {
4176 return true;
4177 } else {
4178 i += 1;
4179 }
4180 }
4181 false
4182 });
4183 }
4184
4185 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4186 let offset = position.to_offset(buffer);
4187 let (word_range, kind) = buffer.surrounding_word(offset, true);
4188 if offset > word_range.start && kind == Some(CharKind::Word) {
4189 Some(
4190 buffer
4191 .text_for_range(word_range.start..offset)
4192 .collect::<String>(),
4193 )
4194 } else {
4195 None
4196 }
4197 }
4198
4199 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4200 self.refresh_inlay_hints(
4201 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4202 cx,
4203 );
4204 }
4205
4206 pub fn inlay_hints_enabled(&self) -> bool {
4207 self.inlay_hint_cache.enabled
4208 }
4209
4210 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4211 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4212 return;
4213 }
4214
4215 let reason_description = reason.description();
4216 let ignore_debounce = matches!(
4217 reason,
4218 InlayHintRefreshReason::SettingsChange(_)
4219 | InlayHintRefreshReason::Toggle(_)
4220 | InlayHintRefreshReason::ExcerptsRemoved(_)
4221 );
4222 let (invalidate_cache, required_languages) = match reason {
4223 InlayHintRefreshReason::Toggle(enabled) => {
4224 self.inlay_hint_cache.enabled = enabled;
4225 if enabled {
4226 (InvalidationStrategy::RefreshRequested, None)
4227 } else {
4228 self.inlay_hint_cache.clear();
4229 self.splice_inlays(
4230 self.visible_inlay_hints(cx)
4231 .iter()
4232 .map(|inlay| inlay.id)
4233 .collect(),
4234 Vec::new(),
4235 cx,
4236 );
4237 return;
4238 }
4239 }
4240 InlayHintRefreshReason::SettingsChange(new_settings) => {
4241 match self.inlay_hint_cache.update_settings(
4242 &self.buffer,
4243 new_settings,
4244 self.visible_inlay_hints(cx),
4245 cx,
4246 ) {
4247 ControlFlow::Break(Some(InlaySplice {
4248 to_remove,
4249 to_insert,
4250 })) => {
4251 self.splice_inlays(to_remove, to_insert, cx);
4252 return;
4253 }
4254 ControlFlow::Break(None) => return,
4255 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4256 }
4257 }
4258 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4259 if let Some(InlaySplice {
4260 to_remove,
4261 to_insert,
4262 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4263 {
4264 self.splice_inlays(to_remove, to_insert, cx);
4265 }
4266 return;
4267 }
4268 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4269 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4270 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4271 }
4272 InlayHintRefreshReason::RefreshRequested => {
4273 (InvalidationStrategy::RefreshRequested, None)
4274 }
4275 };
4276
4277 if let Some(InlaySplice {
4278 to_remove,
4279 to_insert,
4280 }) = self.inlay_hint_cache.spawn_hint_refresh(
4281 reason_description,
4282 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4283 invalidate_cache,
4284 ignore_debounce,
4285 cx,
4286 ) {
4287 self.splice_inlays(to_remove, to_insert, cx);
4288 }
4289 }
4290
4291 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4292 self.display_map
4293 .read(cx)
4294 .current_inlays()
4295 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4296 .cloned()
4297 .collect()
4298 }
4299
4300 pub fn excerpts_for_inlay_hints_query(
4301 &self,
4302 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4303 cx: &mut ViewContext<Editor>,
4304 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4305 let Some(project) = self.project.as_ref() else {
4306 return HashMap::default();
4307 };
4308 let project = project.read(cx);
4309 let multi_buffer = self.buffer().read(cx);
4310 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4311 let multi_buffer_visible_start = self
4312 .scroll_manager
4313 .anchor()
4314 .anchor
4315 .to_point(&multi_buffer_snapshot);
4316 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4317 multi_buffer_visible_start
4318 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4319 Bias::Left,
4320 );
4321 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4322 multi_buffer
4323 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4324 .into_iter()
4325 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4326 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4327 let buffer = buffer_handle.read(cx);
4328 let buffer_file = project::File::from_dyn(buffer.file())?;
4329 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4330 let worktree_entry = buffer_worktree
4331 .read(cx)
4332 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4333 if worktree_entry.is_ignored {
4334 return None;
4335 }
4336
4337 let language = buffer.language()?;
4338 if let Some(restrict_to_languages) = restrict_to_languages {
4339 if !restrict_to_languages.contains(language) {
4340 return None;
4341 }
4342 }
4343 Some((
4344 excerpt_id,
4345 (
4346 buffer_handle,
4347 buffer.version().clone(),
4348 excerpt_visible_range,
4349 ),
4350 ))
4351 })
4352 .collect()
4353 }
4354
4355 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4356 TextLayoutDetails {
4357 text_system: cx.text_system().clone(),
4358 editor_style: self.style.clone().unwrap(),
4359 rem_size: cx.rem_size(),
4360 scroll_anchor: self.scroll_manager.anchor(),
4361 visible_rows: self.visible_line_count(),
4362 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4363 }
4364 }
4365
4366 fn splice_inlays(
4367 &self,
4368 to_remove: Vec<InlayId>,
4369 to_insert: Vec<Inlay>,
4370 cx: &mut ViewContext<Self>,
4371 ) {
4372 self.display_map.update(cx, |display_map, cx| {
4373 display_map.splice_inlays(to_remove, to_insert, cx);
4374 });
4375 cx.notify();
4376 }
4377
4378 fn trigger_on_type_formatting(
4379 &self,
4380 input: String,
4381 cx: &mut ViewContext<Self>,
4382 ) -> Option<Task<Result<()>>> {
4383 if input.len() != 1 {
4384 return None;
4385 }
4386
4387 let project = self.project.as_ref()?;
4388 let position = self.selections.newest_anchor().head();
4389 let (buffer, buffer_position) = self
4390 .buffer
4391 .read(cx)
4392 .text_anchor_for_position(position, cx)?;
4393
4394 let settings = language_settings::language_settings(
4395 buffer
4396 .read(cx)
4397 .language_at(buffer_position)
4398 .map(|l| l.name()),
4399 buffer.read(cx).file(),
4400 cx,
4401 );
4402 if !settings.use_on_type_format {
4403 return None;
4404 }
4405
4406 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4407 // hence we do LSP request & edit on host side only — add formats to host's history.
4408 let push_to_lsp_host_history = true;
4409 // If this is not the host, append its history with new edits.
4410 let push_to_client_history = project.read(cx).is_via_collab();
4411
4412 let on_type_formatting = project.update(cx, |project, cx| {
4413 project.on_type_format(
4414 buffer.clone(),
4415 buffer_position,
4416 input,
4417 push_to_lsp_host_history,
4418 cx,
4419 )
4420 });
4421 Some(cx.spawn(|editor, mut cx| async move {
4422 if let Some(transaction) = on_type_formatting.await? {
4423 if push_to_client_history {
4424 buffer
4425 .update(&mut cx, |buffer, _| {
4426 buffer.push_transaction(transaction, Instant::now());
4427 })
4428 .ok();
4429 }
4430 editor.update(&mut cx, |editor, cx| {
4431 editor.refresh_document_highlights(cx);
4432 })?;
4433 }
4434 Ok(())
4435 }))
4436 }
4437
4438 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4439 if self.pending_rename.is_some() {
4440 return;
4441 }
4442
4443 let Some(provider) = self.completion_provider.as_ref() else {
4444 return;
4445 };
4446
4447 if !self.snippet_stack.is_empty() && self.context_menu.read().as_ref().is_some() {
4448 return;
4449 }
4450
4451 let position = self.selections.newest_anchor().head();
4452 let (buffer, buffer_position) =
4453 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4454 output
4455 } else {
4456 return;
4457 };
4458
4459 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4460 let is_followup_invoke = {
4461 let context_menu_state = self.context_menu.read();
4462 matches!(
4463 context_menu_state.deref(),
4464 Some(ContextMenu::Completions(_))
4465 )
4466 };
4467 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4468 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4469 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4470 CompletionTriggerKind::TRIGGER_CHARACTER
4471 }
4472
4473 _ => CompletionTriggerKind::INVOKED,
4474 };
4475 let completion_context = CompletionContext {
4476 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4477 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4478 Some(String::from(trigger))
4479 } else {
4480 None
4481 }
4482 }),
4483 trigger_kind,
4484 };
4485 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4486 let sort_completions = provider.sort_completions();
4487
4488 let id = post_inc(&mut self.next_completion_id);
4489 let task = cx.spawn(|editor, mut cx| {
4490 async move {
4491 editor.update(&mut cx, |this, _| {
4492 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4493 })?;
4494 let completions = completions.await.log_err();
4495 let menu = if let Some(completions) = completions {
4496 let mut menu = CompletionsMenu::new(
4497 id,
4498 sort_completions,
4499 position,
4500 buffer.clone(),
4501 completions.into(),
4502 );
4503 menu.filter(query.as_deref(), cx.background_executor().clone())
4504 .await;
4505
4506 if menu.matches.is_empty() {
4507 None
4508 } else {
4509 Some(menu)
4510 }
4511 } else {
4512 None
4513 };
4514
4515 editor.update(&mut cx, |editor, cx| {
4516 let mut context_menu = editor.context_menu.write();
4517 match context_menu.as_ref() {
4518 None => {}
4519
4520 Some(ContextMenu::Completions(prev_menu)) => {
4521 if prev_menu.id > id {
4522 return;
4523 }
4524 }
4525
4526 _ => return,
4527 }
4528
4529 if editor.focus_handle.is_focused(cx) && menu.is_some() {
4530 let mut menu = menu.unwrap();
4531 menu.resolve_selected_completion(editor.completion_provider.as_deref(), cx);
4532 *context_menu = Some(ContextMenu::Completions(menu));
4533 drop(context_menu);
4534 editor.discard_inline_completion(false, cx);
4535 cx.notify();
4536 } else if editor.completion_tasks.len() <= 1 {
4537 // If there are no more completion tasks and the last menu was
4538 // empty, we should hide it. If it was already hidden, we should
4539 // also show the copilot completion when available.
4540 drop(context_menu);
4541 if editor.hide_context_menu(cx).is_none() {
4542 editor.update_visible_inline_completion(cx);
4543 }
4544 }
4545 })?;
4546
4547 Ok::<_, anyhow::Error>(())
4548 }
4549 .log_err()
4550 });
4551
4552 self.completion_tasks.push((id, task));
4553 }
4554
4555 pub fn confirm_completion(
4556 &mut self,
4557 action: &ConfirmCompletion,
4558 cx: &mut ViewContext<Self>,
4559 ) -> Option<Task<Result<()>>> {
4560 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4561 }
4562
4563 pub fn compose_completion(
4564 &mut self,
4565 action: &ComposeCompletion,
4566 cx: &mut ViewContext<Self>,
4567 ) -> Option<Task<Result<()>>> {
4568 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4569 }
4570
4571 fn do_completion(
4572 &mut self,
4573 item_ix: Option<usize>,
4574 intent: CompletionIntent,
4575 cx: &mut ViewContext<Editor>,
4576 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4577 use language::ToOffset as _;
4578
4579 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4580 menu
4581 } else {
4582 return None;
4583 };
4584
4585 let mat = completions_menu
4586 .matches
4587 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4588 let buffer_handle = completions_menu.buffer;
4589 let completions = completions_menu.completions.read();
4590 let completion = completions.get(mat.candidate_id)?;
4591 cx.stop_propagation();
4592
4593 let snippet;
4594 let text;
4595
4596 if completion.is_snippet() {
4597 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4598 text = snippet.as_ref().unwrap().text.clone();
4599 } else {
4600 snippet = None;
4601 text = completion.new_text.clone();
4602 };
4603 let selections = self.selections.all::<usize>(cx);
4604 let buffer = buffer_handle.read(cx);
4605 let old_range = completion.old_range.to_offset(buffer);
4606 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4607
4608 let newest_selection = self.selections.newest_anchor();
4609 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4610 return None;
4611 }
4612
4613 let lookbehind = newest_selection
4614 .start
4615 .text_anchor
4616 .to_offset(buffer)
4617 .saturating_sub(old_range.start);
4618 let lookahead = old_range
4619 .end
4620 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4621 let mut common_prefix_len = old_text
4622 .bytes()
4623 .zip(text.bytes())
4624 .take_while(|(a, b)| a == b)
4625 .count();
4626
4627 let snapshot = self.buffer.read(cx).snapshot(cx);
4628 let mut range_to_replace: Option<Range<isize>> = None;
4629 let mut ranges = Vec::new();
4630 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4631 for selection in &selections {
4632 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4633 let start = selection.start.saturating_sub(lookbehind);
4634 let end = selection.end + lookahead;
4635 if selection.id == newest_selection.id {
4636 range_to_replace = Some(
4637 ((start + common_prefix_len) as isize - selection.start as isize)
4638 ..(end as isize - selection.start as isize),
4639 );
4640 }
4641 ranges.push(start + common_prefix_len..end);
4642 } else {
4643 common_prefix_len = 0;
4644 ranges.clear();
4645 ranges.extend(selections.iter().map(|s| {
4646 if s.id == newest_selection.id {
4647 range_to_replace = Some(
4648 old_range.start.to_offset_utf16(&snapshot).0 as isize
4649 - selection.start as isize
4650 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4651 - selection.start as isize,
4652 );
4653 old_range.clone()
4654 } else {
4655 s.start..s.end
4656 }
4657 }));
4658 break;
4659 }
4660 if !self.linked_edit_ranges.is_empty() {
4661 let start_anchor = snapshot.anchor_before(selection.head());
4662 let end_anchor = snapshot.anchor_after(selection.tail());
4663 if let Some(ranges) = self
4664 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4665 {
4666 for (buffer, edits) in ranges {
4667 linked_edits.entry(buffer.clone()).or_default().extend(
4668 edits
4669 .into_iter()
4670 .map(|range| (range, text[common_prefix_len..].to_owned())),
4671 );
4672 }
4673 }
4674 }
4675 }
4676 let text = &text[common_prefix_len..];
4677
4678 cx.emit(EditorEvent::InputHandled {
4679 utf16_range_to_replace: range_to_replace,
4680 text: text.into(),
4681 });
4682
4683 self.transact(cx, |this, cx| {
4684 if let Some(mut snippet) = snippet {
4685 snippet.text = text.to_string();
4686 for tabstop in snippet
4687 .tabstops
4688 .iter_mut()
4689 .flat_map(|tabstop| tabstop.ranges.iter_mut())
4690 {
4691 tabstop.start -= common_prefix_len as isize;
4692 tabstop.end -= common_prefix_len as isize;
4693 }
4694
4695 this.insert_snippet(&ranges, snippet, cx).log_err();
4696 } else {
4697 this.buffer.update(cx, |buffer, cx| {
4698 buffer.edit(
4699 ranges.iter().map(|range| (range.clone(), text)),
4700 this.autoindent_mode.clone(),
4701 cx,
4702 );
4703 });
4704 }
4705 for (buffer, edits) in linked_edits {
4706 buffer.update(cx, |buffer, cx| {
4707 let snapshot = buffer.snapshot();
4708 let edits = edits
4709 .into_iter()
4710 .map(|(range, text)| {
4711 use text::ToPoint as TP;
4712 let end_point = TP::to_point(&range.end, &snapshot);
4713 let start_point = TP::to_point(&range.start, &snapshot);
4714 (start_point..end_point, text)
4715 })
4716 .sorted_by_key(|(range, _)| range.start)
4717 .collect::<Vec<_>>();
4718 buffer.edit(edits, None, cx);
4719 })
4720 }
4721
4722 this.refresh_inline_completion(true, false, cx);
4723 });
4724
4725 let show_new_completions_on_confirm = completion
4726 .confirm
4727 .as_ref()
4728 .map_or(false, |confirm| confirm(intent, cx));
4729 if show_new_completions_on_confirm {
4730 self.show_completions(&ShowCompletions { trigger: None }, cx);
4731 }
4732
4733 let provider = self.completion_provider.as_ref()?;
4734 let apply_edits = provider.apply_additional_edits_for_completion(
4735 buffer_handle,
4736 completion.clone(),
4737 true,
4738 cx,
4739 );
4740
4741 let editor_settings = EditorSettings::get_global(cx);
4742 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4743 // After the code completion is finished, users often want to know what signatures are needed.
4744 // so we should automatically call signature_help
4745 self.show_signature_help(&ShowSignatureHelp, cx);
4746 }
4747
4748 Some(cx.foreground_executor().spawn(async move {
4749 apply_edits.await?;
4750 Ok(())
4751 }))
4752 }
4753
4754 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4755 let mut context_menu = self.context_menu.write();
4756 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4757 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4758 // Toggle if we're selecting the same one
4759 *context_menu = None;
4760 cx.notify();
4761 return;
4762 } else {
4763 // Otherwise, clear it and start a new one
4764 *context_menu = None;
4765 cx.notify();
4766 }
4767 }
4768 drop(context_menu);
4769 let snapshot = self.snapshot(cx);
4770 let deployed_from_indicator = action.deployed_from_indicator;
4771 let mut task = self.code_actions_task.take();
4772 let action = action.clone();
4773 cx.spawn(|editor, mut cx| async move {
4774 while let Some(prev_task) = task {
4775 prev_task.await.log_err();
4776 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4777 }
4778
4779 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4780 if editor.focus_handle.is_focused(cx) {
4781 let multibuffer_point = action
4782 .deployed_from_indicator
4783 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4784 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4785 let (buffer, buffer_row) = snapshot
4786 .buffer_snapshot
4787 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4788 .and_then(|(buffer_snapshot, range)| {
4789 editor
4790 .buffer
4791 .read(cx)
4792 .buffer(buffer_snapshot.remote_id())
4793 .map(|buffer| (buffer, range.start.row))
4794 })?;
4795 let (_, code_actions) = editor
4796 .available_code_actions
4797 .clone()
4798 .and_then(|(location, code_actions)| {
4799 let snapshot = location.buffer.read(cx).snapshot();
4800 let point_range = location.range.to_point(&snapshot);
4801 let point_range = point_range.start.row..=point_range.end.row;
4802 if point_range.contains(&buffer_row) {
4803 Some((location, code_actions))
4804 } else {
4805 None
4806 }
4807 })
4808 .unzip();
4809 let buffer_id = buffer.read(cx).remote_id();
4810 let tasks = editor
4811 .tasks
4812 .get(&(buffer_id, buffer_row))
4813 .map(|t| Arc::new(t.to_owned()));
4814 if tasks.is_none() && code_actions.is_none() {
4815 return None;
4816 }
4817
4818 editor.completion_tasks.clear();
4819 editor.discard_inline_completion(false, cx);
4820 let task_context =
4821 tasks
4822 .as_ref()
4823 .zip(editor.project.clone())
4824 .map(|(tasks, project)| {
4825 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4826 });
4827
4828 Some(cx.spawn(|editor, mut cx| async move {
4829 let task_context = match task_context {
4830 Some(task_context) => task_context.await,
4831 None => None,
4832 };
4833 let resolved_tasks =
4834 tasks.zip(task_context).map(|(tasks, task_context)| {
4835 Arc::new(ResolvedTasks {
4836 templates: tasks.resolve(&task_context).collect(),
4837 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4838 multibuffer_point.row,
4839 tasks.column,
4840 )),
4841 })
4842 });
4843 let spawn_straight_away = resolved_tasks
4844 .as_ref()
4845 .map_or(false, |tasks| tasks.templates.len() == 1)
4846 && code_actions
4847 .as_ref()
4848 .map_or(true, |actions| actions.is_empty());
4849 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4850 *editor.context_menu.write() =
4851 Some(ContextMenu::CodeActions(CodeActionsMenu {
4852 buffer,
4853 actions: CodeActionContents {
4854 tasks: resolved_tasks,
4855 actions: code_actions,
4856 },
4857 selected_item: Default::default(),
4858 scroll_handle: UniformListScrollHandle::default(),
4859 deployed_from_indicator,
4860 }));
4861 if spawn_straight_away {
4862 if let Some(task) = editor.confirm_code_action(
4863 &ConfirmCodeAction { item_ix: Some(0) },
4864 cx,
4865 ) {
4866 cx.notify();
4867 return task;
4868 }
4869 }
4870 cx.notify();
4871 Task::ready(Ok(()))
4872 }) {
4873 task.await
4874 } else {
4875 Ok(())
4876 }
4877 }))
4878 } else {
4879 Some(Task::ready(Ok(())))
4880 }
4881 })?;
4882 if let Some(task) = spawned_test_task {
4883 task.await?;
4884 }
4885
4886 Ok::<_, anyhow::Error>(())
4887 })
4888 .detach_and_log_err(cx);
4889 }
4890
4891 pub fn confirm_code_action(
4892 &mut self,
4893 action: &ConfirmCodeAction,
4894 cx: &mut ViewContext<Self>,
4895 ) -> Option<Task<Result<()>>> {
4896 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4897 menu
4898 } else {
4899 return None;
4900 };
4901 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4902 let action = actions_menu.actions.get(action_ix)?;
4903 let title = action.label();
4904 let buffer = actions_menu.buffer;
4905 let workspace = self.workspace()?;
4906
4907 match action {
4908 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4909 workspace.update(cx, |workspace, cx| {
4910 workspace::tasks::schedule_resolved_task(
4911 workspace,
4912 task_source_kind,
4913 resolved_task,
4914 false,
4915 cx,
4916 );
4917
4918 Some(Task::ready(Ok(())))
4919 })
4920 }
4921 CodeActionsItem::CodeAction {
4922 excerpt_id,
4923 action,
4924 provider,
4925 } => {
4926 let apply_code_action =
4927 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4928 let workspace = workspace.downgrade();
4929 Some(cx.spawn(|editor, cx| async move {
4930 let project_transaction = apply_code_action.await?;
4931 Self::open_project_transaction(
4932 &editor,
4933 workspace,
4934 project_transaction,
4935 title,
4936 cx,
4937 )
4938 .await
4939 }))
4940 }
4941 }
4942 }
4943
4944 pub async fn open_project_transaction(
4945 this: &WeakView<Editor>,
4946 workspace: WeakView<Workspace>,
4947 transaction: ProjectTransaction,
4948 title: String,
4949 mut cx: AsyncWindowContext,
4950 ) -> Result<()> {
4951 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4952 cx.update(|cx| {
4953 entries.sort_unstable_by_key(|(buffer, _)| {
4954 buffer.read(cx).file().map(|f| f.path().clone())
4955 });
4956 })?;
4957
4958 // If the project transaction's edits are all contained within this editor, then
4959 // avoid opening a new editor to display them.
4960
4961 if let Some((buffer, transaction)) = entries.first() {
4962 if entries.len() == 1 {
4963 let excerpt = this.update(&mut cx, |editor, cx| {
4964 editor
4965 .buffer()
4966 .read(cx)
4967 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4968 })?;
4969 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4970 if excerpted_buffer == *buffer {
4971 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4972 let excerpt_range = excerpt_range.to_offset(buffer);
4973 buffer
4974 .edited_ranges_for_transaction::<usize>(transaction)
4975 .all(|range| {
4976 excerpt_range.start <= range.start
4977 && excerpt_range.end >= range.end
4978 })
4979 })?;
4980
4981 if all_edits_within_excerpt {
4982 return Ok(());
4983 }
4984 }
4985 }
4986 }
4987 } else {
4988 return Ok(());
4989 }
4990
4991 let mut ranges_to_highlight = Vec::new();
4992 let excerpt_buffer = cx.new_model(|cx| {
4993 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4994 for (buffer_handle, transaction) in &entries {
4995 let buffer = buffer_handle.read(cx);
4996 ranges_to_highlight.extend(
4997 multibuffer.push_excerpts_with_context_lines(
4998 buffer_handle.clone(),
4999 buffer
5000 .edited_ranges_for_transaction::<usize>(transaction)
5001 .collect(),
5002 DEFAULT_MULTIBUFFER_CONTEXT,
5003 cx,
5004 ),
5005 );
5006 }
5007 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
5008 multibuffer
5009 })?;
5010
5011 workspace.update(&mut cx, |workspace, cx| {
5012 let project = workspace.project().clone();
5013 let editor =
5014 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
5015 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
5016 editor.update(cx, |editor, cx| {
5017 editor.highlight_background::<Self>(
5018 &ranges_to_highlight,
5019 |theme| theme.editor_highlighted_line_background,
5020 cx,
5021 );
5022 });
5023 })?;
5024
5025 Ok(())
5026 }
5027
5028 pub fn clear_code_action_providers(&mut self) {
5029 self.code_action_providers.clear();
5030 self.available_code_actions.take();
5031 }
5032
5033 pub fn push_code_action_provider(
5034 &mut self,
5035 provider: Arc<dyn CodeActionProvider>,
5036 cx: &mut ViewContext<Self>,
5037 ) {
5038 self.code_action_providers.push(provider);
5039 self.refresh_code_actions(cx);
5040 }
5041
5042 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5043 let buffer = self.buffer.read(cx);
5044 let newest_selection = self.selections.newest_anchor().clone();
5045 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
5046 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
5047 if start_buffer != end_buffer {
5048 return None;
5049 }
5050
5051 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
5052 cx.background_executor()
5053 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
5054 .await;
5055
5056 let (providers, tasks) = this.update(&mut cx, |this, cx| {
5057 let providers = this.code_action_providers.clone();
5058 let tasks = this
5059 .code_action_providers
5060 .iter()
5061 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
5062 .collect::<Vec<_>>();
5063 (providers, tasks)
5064 })?;
5065
5066 let mut actions = Vec::new();
5067 for (provider, provider_actions) in
5068 providers.into_iter().zip(future::join_all(tasks).await)
5069 {
5070 if let Some(provider_actions) = provider_actions.log_err() {
5071 actions.extend(provider_actions.into_iter().map(|action| {
5072 AvailableCodeAction {
5073 excerpt_id: newest_selection.start.excerpt_id,
5074 action,
5075 provider: provider.clone(),
5076 }
5077 }));
5078 }
5079 }
5080
5081 this.update(&mut cx, |this, cx| {
5082 this.available_code_actions = if actions.is_empty() {
5083 None
5084 } else {
5085 Some((
5086 Location {
5087 buffer: start_buffer,
5088 range: start..end,
5089 },
5090 actions.into(),
5091 ))
5092 };
5093 cx.notify();
5094 })
5095 }));
5096 None
5097 }
5098
5099 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5100 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5101 self.show_git_blame_inline = false;
5102
5103 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5104 cx.background_executor().timer(delay).await;
5105
5106 this.update(&mut cx, |this, cx| {
5107 this.show_git_blame_inline = true;
5108 cx.notify();
5109 })
5110 .log_err();
5111 }));
5112 }
5113 }
5114
5115 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5116 if self.pending_rename.is_some() {
5117 return None;
5118 }
5119
5120 let provider = self.semantics_provider.clone()?;
5121 let buffer = self.buffer.read(cx);
5122 let newest_selection = self.selections.newest_anchor().clone();
5123 let cursor_position = newest_selection.head();
5124 let (cursor_buffer, cursor_buffer_position) =
5125 buffer.text_anchor_for_position(cursor_position, cx)?;
5126 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5127 if cursor_buffer != tail_buffer {
5128 return None;
5129 }
5130
5131 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5132 cx.background_executor()
5133 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5134 .await;
5135
5136 let highlights = if let Some(highlights) = cx
5137 .update(|cx| {
5138 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5139 })
5140 .ok()
5141 .flatten()
5142 {
5143 highlights.await.log_err()
5144 } else {
5145 None
5146 };
5147
5148 if let Some(highlights) = highlights {
5149 this.update(&mut cx, |this, cx| {
5150 if this.pending_rename.is_some() {
5151 return;
5152 }
5153
5154 let buffer_id = cursor_position.buffer_id;
5155 let buffer = this.buffer.read(cx);
5156 if !buffer
5157 .text_anchor_for_position(cursor_position, cx)
5158 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5159 {
5160 return;
5161 }
5162
5163 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5164 let mut write_ranges = Vec::new();
5165 let mut read_ranges = Vec::new();
5166 for highlight in highlights {
5167 for (excerpt_id, excerpt_range) in
5168 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5169 {
5170 let start = highlight
5171 .range
5172 .start
5173 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5174 let end = highlight
5175 .range
5176 .end
5177 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5178 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5179 continue;
5180 }
5181
5182 let range = Anchor {
5183 buffer_id,
5184 excerpt_id,
5185 text_anchor: start,
5186 }..Anchor {
5187 buffer_id,
5188 excerpt_id,
5189 text_anchor: end,
5190 };
5191 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5192 write_ranges.push(range);
5193 } else {
5194 read_ranges.push(range);
5195 }
5196 }
5197 }
5198
5199 this.highlight_background::<DocumentHighlightRead>(
5200 &read_ranges,
5201 |theme| theme.editor_document_highlight_read_background,
5202 cx,
5203 );
5204 this.highlight_background::<DocumentHighlightWrite>(
5205 &write_ranges,
5206 |theme| theme.editor_document_highlight_write_background,
5207 cx,
5208 );
5209 cx.notify();
5210 })
5211 .log_err();
5212 }
5213 }));
5214 None
5215 }
5216
5217 pub fn refresh_inline_completion(
5218 &mut self,
5219 debounce: bool,
5220 user_requested: bool,
5221 cx: &mut ViewContext<Self>,
5222 ) -> Option<()> {
5223 let provider = self.inline_completion_provider()?;
5224 let cursor = self.selections.newest_anchor().head();
5225 let (buffer, cursor_buffer_position) =
5226 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5227
5228 if !user_requested
5229 && (!self.enable_inline_completions
5230 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5231 {
5232 self.discard_inline_completion(false, cx);
5233 return None;
5234 }
5235
5236 self.update_visible_inline_completion(cx);
5237 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5238 Some(())
5239 }
5240
5241 fn cycle_inline_completion(
5242 &mut self,
5243 direction: Direction,
5244 cx: &mut ViewContext<Self>,
5245 ) -> Option<()> {
5246 let provider = self.inline_completion_provider()?;
5247 let cursor = self.selections.newest_anchor().head();
5248 let (buffer, cursor_buffer_position) =
5249 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5250 if !self.enable_inline_completions
5251 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5252 {
5253 return None;
5254 }
5255
5256 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5257 self.update_visible_inline_completion(cx);
5258
5259 Some(())
5260 }
5261
5262 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5263 if !self.has_active_inline_completion(cx) {
5264 self.refresh_inline_completion(false, true, cx);
5265 return;
5266 }
5267
5268 self.update_visible_inline_completion(cx);
5269 }
5270
5271 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5272 self.show_cursor_names(cx);
5273 }
5274
5275 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5276 self.show_cursor_names = true;
5277 cx.notify();
5278 cx.spawn(|this, mut cx| async move {
5279 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5280 this.update(&mut cx, |this, cx| {
5281 this.show_cursor_names = false;
5282 cx.notify()
5283 })
5284 .ok()
5285 })
5286 .detach();
5287 }
5288
5289 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5290 if self.has_active_inline_completion(cx) {
5291 self.cycle_inline_completion(Direction::Next, cx);
5292 } else {
5293 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5294 if is_copilot_disabled {
5295 cx.propagate();
5296 }
5297 }
5298 }
5299
5300 pub fn previous_inline_completion(
5301 &mut self,
5302 _: &PreviousInlineCompletion,
5303 cx: &mut ViewContext<Self>,
5304 ) {
5305 if self.has_active_inline_completion(cx) {
5306 self.cycle_inline_completion(Direction::Prev, cx);
5307 } else {
5308 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5309 if is_copilot_disabled {
5310 cx.propagate();
5311 }
5312 }
5313 }
5314
5315 pub fn accept_inline_completion(
5316 &mut self,
5317 _: &AcceptInlineCompletion,
5318 cx: &mut ViewContext<Self>,
5319 ) {
5320 let Some(completion) = self.take_active_inline_completion(cx) else {
5321 return;
5322 };
5323 if let Some(provider) = self.inline_completion_provider() {
5324 provider.accept(cx);
5325 }
5326
5327 cx.emit(EditorEvent::InputHandled {
5328 utf16_range_to_replace: None,
5329 text: completion.text.to_string().into(),
5330 });
5331
5332 if let Some(range) = completion.delete_range {
5333 self.change_selections(None, cx, |s| s.select_ranges([range]))
5334 }
5335 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5336 self.refresh_inline_completion(true, true, cx);
5337 cx.notify();
5338 }
5339
5340 pub fn accept_partial_inline_completion(
5341 &mut self,
5342 _: &AcceptPartialInlineCompletion,
5343 cx: &mut ViewContext<Self>,
5344 ) {
5345 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5346 if let Some(completion) = self.take_active_inline_completion(cx) {
5347 let mut partial_completion = completion
5348 .text
5349 .chars()
5350 .by_ref()
5351 .take_while(|c| c.is_alphabetic())
5352 .collect::<String>();
5353 if partial_completion.is_empty() {
5354 partial_completion = completion
5355 .text
5356 .chars()
5357 .by_ref()
5358 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5359 .collect::<String>();
5360 }
5361
5362 cx.emit(EditorEvent::InputHandled {
5363 utf16_range_to_replace: None,
5364 text: partial_completion.clone().into(),
5365 });
5366
5367 if let Some(range) = completion.delete_range {
5368 self.change_selections(None, cx, |s| s.select_ranges([range]))
5369 }
5370 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5371
5372 self.refresh_inline_completion(true, true, cx);
5373 cx.notify();
5374 }
5375 }
5376 }
5377
5378 fn discard_inline_completion(
5379 &mut self,
5380 should_report_inline_completion_event: bool,
5381 cx: &mut ViewContext<Self>,
5382 ) -> bool {
5383 if let Some(provider) = self.inline_completion_provider() {
5384 provider.discard(should_report_inline_completion_event, cx);
5385 }
5386
5387 self.take_active_inline_completion(cx).is_some()
5388 }
5389
5390 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5391 if let Some(completion) = self.active_inline_completion.as_ref() {
5392 let buffer = self.buffer.read(cx).read(cx);
5393 completion.position.is_valid(&buffer)
5394 } else {
5395 false
5396 }
5397 }
5398
5399 fn take_active_inline_completion(
5400 &mut self,
5401 cx: &mut ViewContext<Self>,
5402 ) -> Option<CompletionState> {
5403 let completion = self.active_inline_completion.take()?;
5404 let render_inlay_ids = completion.render_inlay_ids.clone();
5405 self.display_map.update(cx, |map, cx| {
5406 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5407 });
5408 let buffer = self.buffer.read(cx).read(cx);
5409
5410 if completion.position.is_valid(&buffer) {
5411 Some(completion)
5412 } else {
5413 None
5414 }
5415 }
5416
5417 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5418 let selection = self.selections.newest_anchor();
5419 let cursor = selection.head();
5420
5421 let excerpt_id = cursor.excerpt_id;
5422
5423 if self.context_menu.read().is_none()
5424 && self.completion_tasks.is_empty()
5425 && selection.start == selection.end
5426 {
5427 if let Some(provider) = self.inline_completion_provider() {
5428 if let Some((buffer, cursor_buffer_position)) =
5429 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5430 {
5431 if let Some(proposal) =
5432 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5433 {
5434 let mut to_remove = Vec::new();
5435 if let Some(completion) = self.active_inline_completion.take() {
5436 to_remove.extend(completion.render_inlay_ids.iter());
5437 }
5438
5439 let to_add = proposal
5440 .inlays
5441 .iter()
5442 .filter_map(|inlay| {
5443 let snapshot = self.buffer.read(cx).snapshot(cx);
5444 let id = post_inc(&mut self.next_inlay_id);
5445 match inlay {
5446 InlayProposal::Hint(position, hint) => {
5447 let position =
5448 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5449 Some(Inlay::hint(id, position, hint))
5450 }
5451 InlayProposal::Suggestion(position, text) => {
5452 let position =
5453 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5454 Some(Inlay::suggestion(id, position, text.clone()))
5455 }
5456 }
5457 })
5458 .collect_vec();
5459
5460 self.active_inline_completion = Some(CompletionState {
5461 position: cursor,
5462 text: proposal.text,
5463 delete_range: proposal.delete_range.and_then(|range| {
5464 let snapshot = self.buffer.read(cx).snapshot(cx);
5465 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5466 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5467 Some(start?..end?)
5468 }),
5469 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5470 });
5471
5472 self.display_map
5473 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5474
5475 cx.notify();
5476 return;
5477 }
5478 }
5479 }
5480 }
5481
5482 self.discard_inline_completion(false, cx);
5483 }
5484
5485 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5486 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5487 }
5488
5489 fn render_code_actions_indicator(
5490 &self,
5491 _style: &EditorStyle,
5492 row: DisplayRow,
5493 is_active: bool,
5494 cx: &mut ViewContext<Self>,
5495 ) -> Option<IconButton> {
5496 if self.available_code_actions.is_some() {
5497 Some(
5498 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5499 .shape(ui::IconButtonShape::Square)
5500 .icon_size(IconSize::XSmall)
5501 .icon_color(Color::Muted)
5502 .selected(is_active)
5503 .tooltip({
5504 let focus_handle = self.focus_handle.clone();
5505 move |cx| {
5506 Tooltip::for_action_in(
5507 "Toggle Code Actions",
5508 &ToggleCodeActions {
5509 deployed_from_indicator: None,
5510 },
5511 &focus_handle,
5512 cx,
5513 )
5514 }
5515 })
5516 .on_click(cx.listener(move |editor, _e, cx| {
5517 editor.focus(cx);
5518 editor.toggle_code_actions(
5519 &ToggleCodeActions {
5520 deployed_from_indicator: Some(row),
5521 },
5522 cx,
5523 );
5524 })),
5525 )
5526 } else {
5527 None
5528 }
5529 }
5530
5531 fn clear_tasks(&mut self) {
5532 self.tasks.clear()
5533 }
5534
5535 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5536 if self.tasks.insert(key, value).is_some() {
5537 // This case should hopefully be rare, but just in case...
5538 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5539 }
5540 }
5541
5542 fn build_tasks_context(
5543 project: &Model<Project>,
5544 buffer: &Model<Buffer>,
5545 buffer_row: u32,
5546 tasks: &Arc<RunnableTasks>,
5547 cx: &mut ViewContext<Self>,
5548 ) -> Task<Option<task::TaskContext>> {
5549 let position = Point::new(buffer_row, tasks.column);
5550 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5551 let location = Location {
5552 buffer: buffer.clone(),
5553 range: range_start..range_start,
5554 };
5555 // Fill in the environmental variables from the tree-sitter captures
5556 let mut captured_task_variables = TaskVariables::default();
5557 for (capture_name, value) in tasks.extra_variables.clone() {
5558 captured_task_variables.insert(
5559 task::VariableName::Custom(capture_name.into()),
5560 value.clone(),
5561 );
5562 }
5563 project.update(cx, |project, cx| {
5564 project.task_store().update(cx, |task_store, cx| {
5565 task_store.task_context_for_location(captured_task_variables, location, cx)
5566 })
5567 })
5568 }
5569
5570 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5571 let Some((workspace, _)) = self.workspace.clone() else {
5572 return;
5573 };
5574 let Some(project) = self.project.clone() else {
5575 return;
5576 };
5577
5578 // Try to find a closest, enclosing node using tree-sitter that has a
5579 // task
5580 let Some((buffer, buffer_row, tasks)) = self
5581 .find_enclosing_node_task(cx)
5582 // Or find the task that's closest in row-distance.
5583 .or_else(|| self.find_closest_task(cx))
5584 else {
5585 return;
5586 };
5587
5588 let reveal_strategy = action.reveal;
5589 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5590 cx.spawn(|_, mut cx| async move {
5591 let context = task_context.await?;
5592 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5593
5594 let resolved = resolved_task.resolved.as_mut()?;
5595 resolved.reveal = reveal_strategy;
5596
5597 workspace
5598 .update(&mut cx, |workspace, cx| {
5599 workspace::tasks::schedule_resolved_task(
5600 workspace,
5601 task_source_kind,
5602 resolved_task,
5603 false,
5604 cx,
5605 );
5606 })
5607 .ok()
5608 })
5609 .detach();
5610 }
5611
5612 fn find_closest_task(
5613 &mut self,
5614 cx: &mut ViewContext<Self>,
5615 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5616 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5617
5618 let ((buffer_id, row), tasks) = self
5619 .tasks
5620 .iter()
5621 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5622
5623 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5624 let tasks = Arc::new(tasks.to_owned());
5625 Some((buffer, *row, tasks))
5626 }
5627
5628 fn find_enclosing_node_task(
5629 &mut self,
5630 cx: &mut ViewContext<Self>,
5631 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5632 let snapshot = self.buffer.read(cx).snapshot(cx);
5633 let offset = self.selections.newest::<usize>(cx).head();
5634 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5635 let buffer_id = excerpt.buffer().remote_id();
5636
5637 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5638 let mut cursor = layer.node().walk();
5639
5640 while cursor.goto_first_child_for_byte(offset).is_some() {
5641 if cursor.node().end_byte() == offset {
5642 cursor.goto_next_sibling();
5643 }
5644 }
5645
5646 // Ascend to the smallest ancestor that contains the range and has a task.
5647 loop {
5648 let node = cursor.node();
5649 let node_range = node.byte_range();
5650 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5651
5652 // Check if this node contains our offset
5653 if node_range.start <= offset && node_range.end >= offset {
5654 // If it contains offset, check for task
5655 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5656 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5657 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5658 }
5659 }
5660
5661 if !cursor.goto_parent() {
5662 break;
5663 }
5664 }
5665 None
5666 }
5667
5668 fn render_run_indicator(
5669 &self,
5670 _style: &EditorStyle,
5671 is_active: bool,
5672 row: DisplayRow,
5673 cx: &mut ViewContext<Self>,
5674 ) -> IconButton {
5675 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5676 .shape(ui::IconButtonShape::Square)
5677 .icon_size(IconSize::XSmall)
5678 .icon_color(Color::Muted)
5679 .selected(is_active)
5680 .on_click(cx.listener(move |editor, _e, cx| {
5681 editor.focus(cx);
5682 editor.toggle_code_actions(
5683 &ToggleCodeActions {
5684 deployed_from_indicator: Some(row),
5685 },
5686 cx,
5687 );
5688 }))
5689 }
5690
5691 pub fn context_menu_visible(&self) -> bool {
5692 self.context_menu
5693 .read()
5694 .as_ref()
5695 .map_or(false, |menu| menu.visible())
5696 }
5697
5698 fn render_context_menu(
5699 &self,
5700 cursor_position: DisplayPoint,
5701 style: &EditorStyle,
5702 max_height: Pixels,
5703 cx: &mut ViewContext<Editor>,
5704 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5705 self.context_menu.read().as_ref().map(|menu| {
5706 menu.render(
5707 cursor_position,
5708 style,
5709 max_height,
5710 self.workspace.as_ref().map(|(w, _)| w.clone()),
5711 cx,
5712 )
5713 })
5714 }
5715
5716 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5717 cx.notify();
5718 self.completion_tasks.clear();
5719 let context_menu = self.context_menu.write().take();
5720 if context_menu.is_some() {
5721 self.update_visible_inline_completion(cx);
5722 }
5723 context_menu
5724 }
5725
5726 fn show_snippet_choices(
5727 &mut self,
5728 choices: &Vec<String>,
5729 selection: Range<Anchor>,
5730 cx: &mut ViewContext<Self>,
5731 ) {
5732 if selection.start.buffer_id.is_none() {
5733 return;
5734 }
5735 let buffer_id = selection.start.buffer_id.unwrap();
5736 let buffer = self.buffer().read(cx).buffer(buffer_id);
5737 let id = post_inc(&mut self.next_completion_id);
5738
5739 if let Some(buffer) = buffer {
5740 *self.context_menu.write() = Some(ContextMenu::Completions(
5741 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer)
5742 .suppress_documentation_resolution(),
5743 ));
5744 }
5745 }
5746
5747 pub fn insert_snippet(
5748 &mut self,
5749 insertion_ranges: &[Range<usize>],
5750 snippet: Snippet,
5751 cx: &mut ViewContext<Self>,
5752 ) -> Result<()> {
5753 struct Tabstop<T> {
5754 is_end_tabstop: bool,
5755 ranges: Vec<Range<T>>,
5756 choices: Option<Vec<String>>,
5757 }
5758
5759 let tabstops = self.buffer.update(cx, |buffer, cx| {
5760 let snippet_text: Arc<str> = snippet.text.clone().into();
5761 buffer.edit(
5762 insertion_ranges
5763 .iter()
5764 .cloned()
5765 .map(|range| (range, snippet_text.clone())),
5766 Some(AutoindentMode::EachLine),
5767 cx,
5768 );
5769
5770 let snapshot = &*buffer.read(cx);
5771 let snippet = &snippet;
5772 snippet
5773 .tabstops
5774 .iter()
5775 .map(|tabstop| {
5776 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5777 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5778 });
5779 let mut tabstop_ranges = tabstop
5780 .ranges
5781 .iter()
5782 .flat_map(|tabstop_range| {
5783 let mut delta = 0_isize;
5784 insertion_ranges.iter().map(move |insertion_range| {
5785 let insertion_start = insertion_range.start as isize + delta;
5786 delta +=
5787 snippet.text.len() as isize - insertion_range.len() as isize;
5788
5789 let start = ((insertion_start + tabstop_range.start) as usize)
5790 .min(snapshot.len());
5791 let end = ((insertion_start + tabstop_range.end) as usize)
5792 .min(snapshot.len());
5793 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5794 })
5795 })
5796 .collect::<Vec<_>>();
5797 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5798
5799 Tabstop {
5800 is_end_tabstop,
5801 ranges: tabstop_ranges,
5802 choices: tabstop.choices.clone(),
5803 }
5804 })
5805 .collect::<Vec<_>>()
5806 });
5807 if let Some(tabstop) = tabstops.first() {
5808 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5809 s.select_ranges(tabstop.ranges.iter().cloned());
5810 });
5811
5812 if let Some(choices) = &tabstop.choices {
5813 if let Some(selection) = tabstop.ranges.first() {
5814 self.show_snippet_choices(choices, selection.clone(), cx)
5815 }
5816 }
5817
5818 // If we're already at the last tabstop and it's at the end of the snippet,
5819 // we're done, we don't need to keep the state around.
5820 if !tabstop.is_end_tabstop {
5821 let choices = tabstops
5822 .iter()
5823 .map(|tabstop| tabstop.choices.clone())
5824 .collect();
5825
5826 let ranges = tabstops
5827 .into_iter()
5828 .map(|tabstop| tabstop.ranges)
5829 .collect::<Vec<_>>();
5830
5831 self.snippet_stack.push(SnippetState {
5832 active_index: 0,
5833 ranges,
5834 choices,
5835 });
5836 }
5837
5838 // Check whether the just-entered snippet ends with an auto-closable bracket.
5839 if self.autoclose_regions.is_empty() {
5840 let snapshot = self.buffer.read(cx).snapshot(cx);
5841 for selection in &mut self.selections.all::<Point>(cx) {
5842 let selection_head = selection.head();
5843 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5844 continue;
5845 };
5846
5847 let mut bracket_pair = None;
5848 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5849 let prev_chars = snapshot
5850 .reversed_chars_at(selection_head)
5851 .collect::<String>();
5852 for (pair, enabled) in scope.brackets() {
5853 if enabled
5854 && pair.close
5855 && prev_chars.starts_with(pair.start.as_str())
5856 && next_chars.starts_with(pair.end.as_str())
5857 {
5858 bracket_pair = Some(pair.clone());
5859 break;
5860 }
5861 }
5862 if let Some(pair) = bracket_pair {
5863 let start = snapshot.anchor_after(selection_head);
5864 let end = snapshot.anchor_after(selection_head);
5865 self.autoclose_regions.push(AutocloseRegion {
5866 selection_id: selection.id,
5867 range: start..end,
5868 pair,
5869 });
5870 }
5871 }
5872 }
5873 }
5874 Ok(())
5875 }
5876
5877 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5878 self.move_to_snippet_tabstop(Bias::Right, cx)
5879 }
5880
5881 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5882 self.move_to_snippet_tabstop(Bias::Left, cx)
5883 }
5884
5885 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5886 if let Some(mut snippet) = self.snippet_stack.pop() {
5887 match bias {
5888 Bias::Left => {
5889 if snippet.active_index > 0 {
5890 snippet.active_index -= 1;
5891 } else {
5892 self.snippet_stack.push(snippet);
5893 return false;
5894 }
5895 }
5896 Bias::Right => {
5897 if snippet.active_index + 1 < snippet.ranges.len() {
5898 snippet.active_index += 1;
5899 } else {
5900 self.snippet_stack.push(snippet);
5901 return false;
5902 }
5903 }
5904 }
5905 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5906 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5907 s.select_anchor_ranges(current_ranges.iter().cloned())
5908 });
5909
5910 if let Some(choices) = &snippet.choices[snippet.active_index] {
5911 if let Some(selection) = current_ranges.first() {
5912 self.show_snippet_choices(&choices, selection.clone(), cx);
5913 }
5914 }
5915
5916 // If snippet state is not at the last tabstop, push it back on the stack
5917 if snippet.active_index + 1 < snippet.ranges.len() {
5918 self.snippet_stack.push(snippet);
5919 }
5920 return true;
5921 }
5922 }
5923
5924 false
5925 }
5926
5927 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5928 self.transact(cx, |this, cx| {
5929 this.select_all(&SelectAll, cx);
5930 this.insert("", cx);
5931 });
5932 }
5933
5934 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5935 self.transact(cx, |this, cx| {
5936 this.select_autoclose_pair(cx);
5937 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5938 if !this.linked_edit_ranges.is_empty() {
5939 let selections = this.selections.all::<MultiBufferPoint>(cx);
5940 let snapshot = this.buffer.read(cx).snapshot(cx);
5941
5942 for selection in selections.iter() {
5943 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5944 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5945 if selection_start.buffer_id != selection_end.buffer_id {
5946 continue;
5947 }
5948 if let Some(ranges) =
5949 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5950 {
5951 for (buffer, entries) in ranges {
5952 linked_ranges.entry(buffer).or_default().extend(entries);
5953 }
5954 }
5955 }
5956 }
5957
5958 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5959 if !this.selections.line_mode {
5960 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5961 for selection in &mut selections {
5962 if selection.is_empty() {
5963 let old_head = selection.head();
5964 let mut new_head =
5965 movement::left(&display_map, old_head.to_display_point(&display_map))
5966 .to_point(&display_map);
5967 if let Some((buffer, line_buffer_range)) = display_map
5968 .buffer_snapshot
5969 .buffer_line_for_row(MultiBufferRow(old_head.row))
5970 {
5971 let indent_size =
5972 buffer.indent_size_for_line(line_buffer_range.start.row);
5973 let indent_len = match indent_size.kind {
5974 IndentKind::Space => {
5975 buffer.settings_at(line_buffer_range.start, cx).tab_size
5976 }
5977 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5978 };
5979 if old_head.column <= indent_size.len && old_head.column > 0 {
5980 let indent_len = indent_len.get();
5981 new_head = cmp::min(
5982 new_head,
5983 MultiBufferPoint::new(
5984 old_head.row,
5985 ((old_head.column - 1) / indent_len) * indent_len,
5986 ),
5987 );
5988 }
5989 }
5990
5991 selection.set_head(new_head, SelectionGoal::None);
5992 }
5993 }
5994 }
5995
5996 this.signature_help_state.set_backspace_pressed(true);
5997 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5998 this.insert("", cx);
5999 let empty_str: Arc<str> = Arc::from("");
6000 for (buffer, edits) in linked_ranges {
6001 let snapshot = buffer.read(cx).snapshot();
6002 use text::ToPoint as TP;
6003
6004 let edits = edits
6005 .into_iter()
6006 .map(|range| {
6007 let end_point = TP::to_point(&range.end, &snapshot);
6008 let mut start_point = TP::to_point(&range.start, &snapshot);
6009
6010 if end_point == start_point {
6011 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
6012 .saturating_sub(1);
6013 start_point = TP::to_point(&offset, &snapshot);
6014 };
6015
6016 (start_point..end_point, empty_str.clone())
6017 })
6018 .sorted_by_key(|(range, _)| range.start)
6019 .collect::<Vec<_>>();
6020 buffer.update(cx, |this, cx| {
6021 this.edit(edits, None, cx);
6022 })
6023 }
6024 this.refresh_inline_completion(true, false, cx);
6025 linked_editing_ranges::refresh_linked_ranges(this, cx);
6026 });
6027 }
6028
6029 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
6030 self.transact(cx, |this, cx| {
6031 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6032 let line_mode = s.line_mode;
6033 s.move_with(|map, selection| {
6034 if selection.is_empty() && !line_mode {
6035 let cursor = movement::right(map, selection.head());
6036 selection.end = cursor;
6037 selection.reversed = true;
6038 selection.goal = SelectionGoal::None;
6039 }
6040 })
6041 });
6042 this.insert("", cx);
6043 this.refresh_inline_completion(true, false, cx);
6044 });
6045 }
6046
6047 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
6048 if self.move_to_prev_snippet_tabstop(cx) {
6049 return;
6050 }
6051
6052 self.outdent(&Outdent, cx);
6053 }
6054
6055 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
6056 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
6057 return;
6058 }
6059
6060 let mut selections = self.selections.all_adjusted(cx);
6061 let buffer = self.buffer.read(cx);
6062 let snapshot = buffer.snapshot(cx);
6063 let rows_iter = selections.iter().map(|s| s.head().row);
6064 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
6065
6066 let mut edits = Vec::new();
6067 let mut prev_edited_row = 0;
6068 let mut row_delta = 0;
6069 for selection in &mut selections {
6070 if selection.start.row != prev_edited_row {
6071 row_delta = 0;
6072 }
6073 prev_edited_row = selection.end.row;
6074
6075 // If the selection is non-empty, then increase the indentation of the selected lines.
6076 if !selection.is_empty() {
6077 row_delta =
6078 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6079 continue;
6080 }
6081
6082 // If the selection is empty and the cursor is in the leading whitespace before the
6083 // suggested indentation, then auto-indent the line.
6084 let cursor = selection.head();
6085 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
6086 if let Some(suggested_indent) =
6087 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
6088 {
6089 if cursor.column < suggested_indent.len
6090 && cursor.column <= current_indent.len
6091 && current_indent.len <= suggested_indent.len
6092 {
6093 selection.start = Point::new(cursor.row, suggested_indent.len);
6094 selection.end = selection.start;
6095 if row_delta == 0 {
6096 edits.extend(Buffer::edit_for_indent_size_adjustment(
6097 cursor.row,
6098 current_indent,
6099 suggested_indent,
6100 ));
6101 row_delta = suggested_indent.len - current_indent.len;
6102 }
6103 continue;
6104 }
6105 }
6106
6107 // Otherwise, insert a hard or soft tab.
6108 let settings = buffer.settings_at(cursor, cx);
6109 let tab_size = if settings.hard_tabs {
6110 IndentSize::tab()
6111 } else {
6112 let tab_size = settings.tab_size.get();
6113 let char_column = snapshot
6114 .text_for_range(Point::new(cursor.row, 0)..cursor)
6115 .flat_map(str::chars)
6116 .count()
6117 + row_delta as usize;
6118 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
6119 IndentSize::spaces(chars_to_next_tab_stop)
6120 };
6121 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
6122 selection.end = selection.start;
6123 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
6124 row_delta += tab_size.len;
6125 }
6126
6127 self.transact(cx, |this, cx| {
6128 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6129 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6130 this.refresh_inline_completion(true, false, cx);
6131 });
6132 }
6133
6134 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
6135 if self.read_only(cx) {
6136 return;
6137 }
6138 let mut selections = self.selections.all::<Point>(cx);
6139 let mut prev_edited_row = 0;
6140 let mut row_delta = 0;
6141 let mut edits = Vec::new();
6142 let buffer = self.buffer.read(cx);
6143 let snapshot = buffer.snapshot(cx);
6144 for selection in &mut selections {
6145 if selection.start.row != prev_edited_row {
6146 row_delta = 0;
6147 }
6148 prev_edited_row = selection.end.row;
6149
6150 row_delta =
6151 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6152 }
6153
6154 self.transact(cx, |this, cx| {
6155 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6156 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6157 });
6158 }
6159
6160 fn indent_selection(
6161 buffer: &MultiBuffer,
6162 snapshot: &MultiBufferSnapshot,
6163 selection: &mut Selection<Point>,
6164 edits: &mut Vec<(Range<Point>, String)>,
6165 delta_for_start_row: u32,
6166 cx: &AppContext,
6167 ) -> u32 {
6168 let settings = buffer.settings_at(selection.start, cx);
6169 let tab_size = settings.tab_size.get();
6170 let indent_kind = if settings.hard_tabs {
6171 IndentKind::Tab
6172 } else {
6173 IndentKind::Space
6174 };
6175 let mut start_row = selection.start.row;
6176 let mut end_row = selection.end.row + 1;
6177
6178 // If a selection ends at the beginning of a line, don't indent
6179 // that last line.
6180 if selection.end.column == 0 && selection.end.row > selection.start.row {
6181 end_row -= 1;
6182 }
6183
6184 // Avoid re-indenting a row that has already been indented by a
6185 // previous selection, but still update this selection's column
6186 // to reflect that indentation.
6187 if delta_for_start_row > 0 {
6188 start_row += 1;
6189 selection.start.column += delta_for_start_row;
6190 if selection.end.row == selection.start.row {
6191 selection.end.column += delta_for_start_row;
6192 }
6193 }
6194
6195 let mut delta_for_end_row = 0;
6196 let has_multiple_rows = start_row + 1 != end_row;
6197 for row in start_row..end_row {
6198 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6199 let indent_delta = match (current_indent.kind, indent_kind) {
6200 (IndentKind::Space, IndentKind::Space) => {
6201 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6202 IndentSize::spaces(columns_to_next_tab_stop)
6203 }
6204 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6205 (_, IndentKind::Tab) => IndentSize::tab(),
6206 };
6207
6208 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6209 0
6210 } else {
6211 selection.start.column
6212 };
6213 let row_start = Point::new(row, start);
6214 edits.push((
6215 row_start..row_start,
6216 indent_delta.chars().collect::<String>(),
6217 ));
6218
6219 // Update this selection's endpoints to reflect the indentation.
6220 if row == selection.start.row {
6221 selection.start.column += indent_delta.len;
6222 }
6223 if row == selection.end.row {
6224 selection.end.column += indent_delta.len;
6225 delta_for_end_row = indent_delta.len;
6226 }
6227 }
6228
6229 if selection.start.row == selection.end.row {
6230 delta_for_start_row + delta_for_end_row
6231 } else {
6232 delta_for_end_row
6233 }
6234 }
6235
6236 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6237 if self.read_only(cx) {
6238 return;
6239 }
6240 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6241 let selections = self.selections.all::<Point>(cx);
6242 let mut deletion_ranges = Vec::new();
6243 let mut last_outdent = None;
6244 {
6245 let buffer = self.buffer.read(cx);
6246 let snapshot = buffer.snapshot(cx);
6247 for selection in &selections {
6248 let settings = buffer.settings_at(selection.start, cx);
6249 let tab_size = settings.tab_size.get();
6250 let mut rows = selection.spanned_rows(false, &display_map);
6251
6252 // Avoid re-outdenting a row that has already been outdented by a
6253 // previous selection.
6254 if let Some(last_row) = last_outdent {
6255 if last_row == rows.start {
6256 rows.start = rows.start.next_row();
6257 }
6258 }
6259 let has_multiple_rows = rows.len() > 1;
6260 for row in rows.iter_rows() {
6261 let indent_size = snapshot.indent_size_for_line(row);
6262 if indent_size.len > 0 {
6263 let deletion_len = match indent_size.kind {
6264 IndentKind::Space => {
6265 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6266 if columns_to_prev_tab_stop == 0 {
6267 tab_size
6268 } else {
6269 columns_to_prev_tab_stop
6270 }
6271 }
6272 IndentKind::Tab => 1,
6273 };
6274 let start = if has_multiple_rows
6275 || deletion_len > selection.start.column
6276 || indent_size.len < selection.start.column
6277 {
6278 0
6279 } else {
6280 selection.start.column - deletion_len
6281 };
6282 deletion_ranges.push(
6283 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6284 );
6285 last_outdent = Some(row);
6286 }
6287 }
6288 }
6289 }
6290
6291 self.transact(cx, |this, cx| {
6292 this.buffer.update(cx, |buffer, cx| {
6293 let empty_str: Arc<str> = Arc::default();
6294 buffer.edit(
6295 deletion_ranges
6296 .into_iter()
6297 .map(|range| (range, empty_str.clone())),
6298 None,
6299 cx,
6300 );
6301 });
6302 let selections = this.selections.all::<usize>(cx);
6303 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6304 });
6305 }
6306
6307 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
6308 if self.read_only(cx) {
6309 return;
6310 }
6311 let selections = self
6312 .selections
6313 .all::<usize>(cx)
6314 .into_iter()
6315 .map(|s| s.range());
6316
6317 self.transact(cx, |this, cx| {
6318 this.buffer.update(cx, |buffer, cx| {
6319 buffer.autoindent_ranges(selections, cx);
6320 });
6321 let selections = this.selections.all::<usize>(cx);
6322 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6323 });
6324 }
6325
6326 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6327 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6328 let selections = self.selections.all::<Point>(cx);
6329
6330 let mut new_cursors = Vec::new();
6331 let mut edit_ranges = Vec::new();
6332 let mut selections = selections.iter().peekable();
6333 while let Some(selection) = selections.next() {
6334 let mut rows = selection.spanned_rows(false, &display_map);
6335 let goal_display_column = selection.head().to_display_point(&display_map).column();
6336
6337 // Accumulate contiguous regions of rows that we want to delete.
6338 while let Some(next_selection) = selections.peek() {
6339 let next_rows = next_selection.spanned_rows(false, &display_map);
6340 if next_rows.start <= rows.end {
6341 rows.end = next_rows.end;
6342 selections.next().unwrap();
6343 } else {
6344 break;
6345 }
6346 }
6347
6348 let buffer = &display_map.buffer_snapshot;
6349 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6350 let edit_end;
6351 let cursor_buffer_row;
6352 if buffer.max_point().row >= rows.end.0 {
6353 // If there's a line after the range, delete the \n from the end of the row range
6354 // and position the cursor on the next line.
6355 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6356 cursor_buffer_row = rows.end;
6357 } else {
6358 // If there isn't a line after the range, delete the \n from the line before the
6359 // start of the row range and position the cursor there.
6360 edit_start = edit_start.saturating_sub(1);
6361 edit_end = buffer.len();
6362 cursor_buffer_row = rows.start.previous_row();
6363 }
6364
6365 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6366 *cursor.column_mut() =
6367 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6368
6369 new_cursors.push((
6370 selection.id,
6371 buffer.anchor_after(cursor.to_point(&display_map)),
6372 ));
6373 edit_ranges.push(edit_start..edit_end);
6374 }
6375
6376 self.transact(cx, |this, cx| {
6377 let buffer = this.buffer.update(cx, |buffer, cx| {
6378 let empty_str: Arc<str> = Arc::default();
6379 buffer.edit(
6380 edit_ranges
6381 .into_iter()
6382 .map(|range| (range, empty_str.clone())),
6383 None,
6384 cx,
6385 );
6386 buffer.snapshot(cx)
6387 });
6388 let new_selections = new_cursors
6389 .into_iter()
6390 .map(|(id, cursor)| {
6391 let cursor = cursor.to_point(&buffer);
6392 Selection {
6393 id,
6394 start: cursor,
6395 end: cursor,
6396 reversed: false,
6397 goal: SelectionGoal::None,
6398 }
6399 })
6400 .collect();
6401
6402 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6403 s.select(new_selections);
6404 });
6405 });
6406 }
6407
6408 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6409 if self.read_only(cx) {
6410 return;
6411 }
6412 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6413 for selection in self.selections.all::<Point>(cx) {
6414 let start = MultiBufferRow(selection.start.row);
6415 // Treat single line selections as if they include the next line. Otherwise this action
6416 // would do nothing for single line selections individual cursors.
6417 let end = if selection.start.row == selection.end.row {
6418 MultiBufferRow(selection.start.row + 1)
6419 } else {
6420 MultiBufferRow(selection.end.row)
6421 };
6422
6423 if let Some(last_row_range) = row_ranges.last_mut() {
6424 if start <= last_row_range.end {
6425 last_row_range.end = end;
6426 continue;
6427 }
6428 }
6429 row_ranges.push(start..end);
6430 }
6431
6432 let snapshot = self.buffer.read(cx).snapshot(cx);
6433 let mut cursor_positions = Vec::new();
6434 for row_range in &row_ranges {
6435 let anchor = snapshot.anchor_before(Point::new(
6436 row_range.end.previous_row().0,
6437 snapshot.line_len(row_range.end.previous_row()),
6438 ));
6439 cursor_positions.push(anchor..anchor);
6440 }
6441
6442 self.transact(cx, |this, cx| {
6443 for row_range in row_ranges.into_iter().rev() {
6444 for row in row_range.iter_rows().rev() {
6445 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6446 let next_line_row = row.next_row();
6447 let indent = snapshot.indent_size_for_line(next_line_row);
6448 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6449
6450 let replace = if snapshot.line_len(next_line_row) > indent.len {
6451 " "
6452 } else {
6453 ""
6454 };
6455
6456 this.buffer.update(cx, |buffer, cx| {
6457 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6458 });
6459 }
6460 }
6461
6462 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6463 s.select_anchor_ranges(cursor_positions)
6464 });
6465 });
6466 }
6467
6468 pub fn sort_lines_case_sensitive(
6469 &mut self,
6470 _: &SortLinesCaseSensitive,
6471 cx: &mut ViewContext<Self>,
6472 ) {
6473 self.manipulate_lines(cx, |lines| lines.sort())
6474 }
6475
6476 pub fn sort_lines_case_insensitive(
6477 &mut self,
6478 _: &SortLinesCaseInsensitive,
6479 cx: &mut ViewContext<Self>,
6480 ) {
6481 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6482 }
6483
6484 pub fn unique_lines_case_insensitive(
6485 &mut self,
6486 _: &UniqueLinesCaseInsensitive,
6487 cx: &mut ViewContext<Self>,
6488 ) {
6489 self.manipulate_lines(cx, |lines| {
6490 let mut seen = HashSet::default();
6491 lines.retain(|line| seen.insert(line.to_lowercase()));
6492 })
6493 }
6494
6495 pub fn unique_lines_case_sensitive(
6496 &mut self,
6497 _: &UniqueLinesCaseSensitive,
6498 cx: &mut ViewContext<Self>,
6499 ) {
6500 self.manipulate_lines(cx, |lines| {
6501 let mut seen = HashSet::default();
6502 lines.retain(|line| seen.insert(*line));
6503 })
6504 }
6505
6506 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6507 let mut revert_changes = HashMap::default();
6508 let snapshot = self.snapshot(cx);
6509 for hunk in hunks_for_ranges(
6510 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
6511 &snapshot,
6512 ) {
6513 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6514 }
6515 if !revert_changes.is_empty() {
6516 self.transact(cx, |editor, cx| {
6517 editor.revert(revert_changes, cx);
6518 });
6519 }
6520 }
6521
6522 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6523 let Some(project) = self.project.clone() else {
6524 return;
6525 };
6526 self.reload(project, cx).detach_and_notify_err(cx);
6527 }
6528
6529 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6530 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
6531 if !revert_changes.is_empty() {
6532 self.transact(cx, |editor, cx| {
6533 editor.revert(revert_changes, cx);
6534 });
6535 }
6536 }
6537
6538 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
6539 let snapshot = self.buffer.read(cx).read(cx);
6540 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
6541 drop(snapshot);
6542 let mut revert_changes = HashMap::default();
6543 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6544 if !revert_changes.is_empty() {
6545 self.revert(revert_changes, cx)
6546 }
6547 }
6548 }
6549
6550 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6551 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6552 let project_path = buffer.read(cx).project_path(cx)?;
6553 let project = self.project.as_ref()?.read(cx);
6554 let entry = project.entry_for_path(&project_path, cx)?;
6555 let parent = match &entry.canonical_path {
6556 Some(canonical_path) => canonical_path.to_path_buf(),
6557 None => project.absolute_path(&project_path, cx)?,
6558 }
6559 .parent()?
6560 .to_path_buf();
6561 Some(parent)
6562 }) {
6563 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6564 }
6565 }
6566
6567 fn gather_revert_changes(
6568 &mut self,
6569 selections: &[Selection<Point>],
6570 cx: &mut ViewContext<'_, Editor>,
6571 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6572 let mut revert_changes = HashMap::default();
6573 let snapshot = self.snapshot(cx);
6574 for hunk in hunks_for_selections(&snapshot, selections) {
6575 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6576 }
6577 revert_changes
6578 }
6579
6580 pub fn prepare_revert_change(
6581 &mut self,
6582 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6583 hunk: &MultiBufferDiffHunk,
6584 cx: &AppContext,
6585 ) -> Option<()> {
6586 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6587 let buffer = buffer.read(cx);
6588 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6589 let original_text = change_set
6590 .read(cx)
6591 .base_text
6592 .as_ref()?
6593 .read(cx)
6594 .as_rope()
6595 .slice(hunk.diff_base_byte_range.clone());
6596 let buffer_snapshot = buffer.snapshot();
6597 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6598 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6599 probe
6600 .0
6601 .start
6602 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6603 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6604 }) {
6605 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6606 Some(())
6607 } else {
6608 None
6609 }
6610 }
6611
6612 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6613 self.manipulate_lines(cx, |lines| lines.reverse())
6614 }
6615
6616 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6617 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6618 }
6619
6620 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6621 where
6622 Fn: FnMut(&mut Vec<&str>),
6623 {
6624 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6625 let buffer = self.buffer.read(cx).snapshot(cx);
6626
6627 let mut edits = Vec::new();
6628
6629 let selections = self.selections.all::<Point>(cx);
6630 let mut selections = selections.iter().peekable();
6631 let mut contiguous_row_selections = Vec::new();
6632 let mut new_selections = Vec::new();
6633 let mut added_lines = 0;
6634 let mut removed_lines = 0;
6635
6636 while let Some(selection) = selections.next() {
6637 let (start_row, end_row) = consume_contiguous_rows(
6638 &mut contiguous_row_selections,
6639 selection,
6640 &display_map,
6641 &mut selections,
6642 );
6643
6644 let start_point = Point::new(start_row.0, 0);
6645 let end_point = Point::new(
6646 end_row.previous_row().0,
6647 buffer.line_len(end_row.previous_row()),
6648 );
6649 let text = buffer
6650 .text_for_range(start_point..end_point)
6651 .collect::<String>();
6652
6653 let mut lines = text.split('\n').collect_vec();
6654
6655 let lines_before = lines.len();
6656 callback(&mut lines);
6657 let lines_after = lines.len();
6658
6659 edits.push((start_point..end_point, lines.join("\n")));
6660
6661 // Selections must change based on added and removed line count
6662 let start_row =
6663 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6664 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6665 new_selections.push(Selection {
6666 id: selection.id,
6667 start: start_row,
6668 end: end_row,
6669 goal: SelectionGoal::None,
6670 reversed: selection.reversed,
6671 });
6672
6673 if lines_after > lines_before {
6674 added_lines += lines_after - lines_before;
6675 } else if lines_before > lines_after {
6676 removed_lines += lines_before - lines_after;
6677 }
6678 }
6679
6680 self.transact(cx, |this, cx| {
6681 let buffer = this.buffer.update(cx, |buffer, cx| {
6682 buffer.edit(edits, None, cx);
6683 buffer.snapshot(cx)
6684 });
6685
6686 // Recalculate offsets on newly edited buffer
6687 let new_selections = new_selections
6688 .iter()
6689 .map(|s| {
6690 let start_point = Point::new(s.start.0, 0);
6691 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6692 Selection {
6693 id: s.id,
6694 start: buffer.point_to_offset(start_point),
6695 end: buffer.point_to_offset(end_point),
6696 goal: s.goal,
6697 reversed: s.reversed,
6698 }
6699 })
6700 .collect();
6701
6702 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6703 s.select(new_selections);
6704 });
6705
6706 this.request_autoscroll(Autoscroll::fit(), cx);
6707 });
6708 }
6709
6710 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6711 self.manipulate_text(cx, |text| text.to_uppercase())
6712 }
6713
6714 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6715 self.manipulate_text(cx, |text| text.to_lowercase())
6716 }
6717
6718 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6719 self.manipulate_text(cx, |text| {
6720 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6721 // https://github.com/rutrum/convert-case/issues/16
6722 text.split('\n')
6723 .map(|line| line.to_case(Case::Title))
6724 .join("\n")
6725 })
6726 }
6727
6728 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6729 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6730 }
6731
6732 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6733 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6734 }
6735
6736 pub fn convert_to_upper_camel_case(
6737 &mut self,
6738 _: &ConvertToUpperCamelCase,
6739 cx: &mut ViewContext<Self>,
6740 ) {
6741 self.manipulate_text(cx, |text| {
6742 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6743 // https://github.com/rutrum/convert-case/issues/16
6744 text.split('\n')
6745 .map(|line| line.to_case(Case::UpperCamel))
6746 .join("\n")
6747 })
6748 }
6749
6750 pub fn convert_to_lower_camel_case(
6751 &mut self,
6752 _: &ConvertToLowerCamelCase,
6753 cx: &mut ViewContext<Self>,
6754 ) {
6755 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6756 }
6757
6758 pub fn convert_to_opposite_case(
6759 &mut self,
6760 _: &ConvertToOppositeCase,
6761 cx: &mut ViewContext<Self>,
6762 ) {
6763 self.manipulate_text(cx, |text| {
6764 text.chars()
6765 .fold(String::with_capacity(text.len()), |mut t, c| {
6766 if c.is_uppercase() {
6767 t.extend(c.to_lowercase());
6768 } else {
6769 t.extend(c.to_uppercase());
6770 }
6771 t
6772 })
6773 })
6774 }
6775
6776 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6777 where
6778 Fn: FnMut(&str) -> String,
6779 {
6780 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6781 let buffer = self.buffer.read(cx).snapshot(cx);
6782
6783 let mut new_selections = Vec::new();
6784 let mut edits = Vec::new();
6785 let mut selection_adjustment = 0i32;
6786
6787 for selection in self.selections.all::<usize>(cx) {
6788 let selection_is_empty = selection.is_empty();
6789
6790 let (start, end) = if selection_is_empty {
6791 let word_range = movement::surrounding_word(
6792 &display_map,
6793 selection.start.to_display_point(&display_map),
6794 );
6795 let start = word_range.start.to_offset(&display_map, Bias::Left);
6796 let end = word_range.end.to_offset(&display_map, Bias::Left);
6797 (start, end)
6798 } else {
6799 (selection.start, selection.end)
6800 };
6801
6802 let text = buffer.text_for_range(start..end).collect::<String>();
6803 let old_length = text.len() as i32;
6804 let text = callback(&text);
6805
6806 new_selections.push(Selection {
6807 start: (start as i32 - selection_adjustment) as usize,
6808 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6809 goal: SelectionGoal::None,
6810 ..selection
6811 });
6812
6813 selection_adjustment += old_length - text.len() as i32;
6814
6815 edits.push((start..end, text));
6816 }
6817
6818 self.transact(cx, |this, cx| {
6819 this.buffer.update(cx, |buffer, cx| {
6820 buffer.edit(edits, None, cx);
6821 });
6822
6823 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6824 s.select(new_selections);
6825 });
6826
6827 this.request_autoscroll(Autoscroll::fit(), cx);
6828 });
6829 }
6830
6831 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6832 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6833 let buffer = &display_map.buffer_snapshot;
6834 let selections = self.selections.all::<Point>(cx);
6835
6836 let mut edits = Vec::new();
6837 let mut selections_iter = selections.iter().peekable();
6838 while let Some(selection) = selections_iter.next() {
6839 // Avoid duplicating the same lines twice.
6840 let mut rows = selection.spanned_rows(false, &display_map);
6841
6842 while let Some(next_selection) = selections_iter.peek() {
6843 let next_rows = next_selection.spanned_rows(false, &display_map);
6844 if next_rows.start < rows.end {
6845 rows.end = next_rows.end;
6846 selections_iter.next().unwrap();
6847 } else {
6848 break;
6849 }
6850 }
6851
6852 // Copy the text from the selected row region and splice it either at the start
6853 // or end of the region.
6854 let start = Point::new(rows.start.0, 0);
6855 let end = Point::new(
6856 rows.end.previous_row().0,
6857 buffer.line_len(rows.end.previous_row()),
6858 );
6859 let text = buffer
6860 .text_for_range(start..end)
6861 .chain(Some("\n"))
6862 .collect::<String>();
6863 let insert_location = if upwards {
6864 Point::new(rows.end.0, 0)
6865 } else {
6866 start
6867 };
6868 edits.push((insert_location..insert_location, text));
6869 }
6870
6871 self.transact(cx, |this, cx| {
6872 this.buffer.update(cx, |buffer, cx| {
6873 buffer.edit(edits, None, cx);
6874 });
6875
6876 this.request_autoscroll(Autoscroll::fit(), cx);
6877 });
6878 }
6879
6880 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6881 self.duplicate_line(true, cx);
6882 }
6883
6884 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6885 self.duplicate_line(false, cx);
6886 }
6887
6888 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6889 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6890 let buffer = self.buffer.read(cx).snapshot(cx);
6891
6892 let mut edits = Vec::new();
6893 let mut unfold_ranges = Vec::new();
6894 let mut refold_creases = Vec::new();
6895
6896 let selections = self.selections.all::<Point>(cx);
6897 let mut selections = selections.iter().peekable();
6898 let mut contiguous_row_selections = Vec::new();
6899 let mut new_selections = Vec::new();
6900
6901 while let Some(selection) = selections.next() {
6902 // Find all the selections that span a contiguous row range
6903 let (start_row, end_row) = consume_contiguous_rows(
6904 &mut contiguous_row_selections,
6905 selection,
6906 &display_map,
6907 &mut selections,
6908 );
6909
6910 // Move the text spanned by the row range to be before the line preceding the row range
6911 if start_row.0 > 0 {
6912 let range_to_move = Point::new(
6913 start_row.previous_row().0,
6914 buffer.line_len(start_row.previous_row()),
6915 )
6916 ..Point::new(
6917 end_row.previous_row().0,
6918 buffer.line_len(end_row.previous_row()),
6919 );
6920 let insertion_point = display_map
6921 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6922 .0;
6923
6924 // Don't move lines across excerpts
6925 if buffer
6926 .excerpt_boundaries_in_range((
6927 Bound::Excluded(insertion_point),
6928 Bound::Included(range_to_move.end),
6929 ))
6930 .next()
6931 .is_none()
6932 {
6933 let text = buffer
6934 .text_for_range(range_to_move.clone())
6935 .flat_map(|s| s.chars())
6936 .skip(1)
6937 .chain(['\n'])
6938 .collect::<String>();
6939
6940 edits.push((
6941 buffer.anchor_after(range_to_move.start)
6942 ..buffer.anchor_before(range_to_move.end),
6943 String::new(),
6944 ));
6945 let insertion_anchor = buffer.anchor_after(insertion_point);
6946 edits.push((insertion_anchor..insertion_anchor, text));
6947
6948 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6949
6950 // Move selections up
6951 new_selections.extend(contiguous_row_selections.drain(..).map(
6952 |mut selection| {
6953 selection.start.row -= row_delta;
6954 selection.end.row -= row_delta;
6955 selection
6956 },
6957 ));
6958
6959 // Move folds up
6960 unfold_ranges.push(range_to_move.clone());
6961 for fold in display_map.folds_in_range(
6962 buffer.anchor_before(range_to_move.start)
6963 ..buffer.anchor_after(range_to_move.end),
6964 ) {
6965 let mut start = fold.range.start.to_point(&buffer);
6966 let mut end = fold.range.end.to_point(&buffer);
6967 start.row -= row_delta;
6968 end.row -= row_delta;
6969 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6970 }
6971 }
6972 }
6973
6974 // If we didn't move line(s), preserve the existing selections
6975 new_selections.append(&mut contiguous_row_selections);
6976 }
6977
6978 self.transact(cx, |this, cx| {
6979 this.unfold_ranges(&unfold_ranges, true, true, cx);
6980 this.buffer.update(cx, |buffer, cx| {
6981 for (range, text) in edits {
6982 buffer.edit([(range, text)], None, cx);
6983 }
6984 });
6985 this.fold_creases(refold_creases, true, cx);
6986 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6987 s.select(new_selections);
6988 })
6989 });
6990 }
6991
6992 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6993 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6994 let buffer = self.buffer.read(cx).snapshot(cx);
6995
6996 let mut edits = Vec::new();
6997 let mut unfold_ranges = Vec::new();
6998 let mut refold_creases = Vec::new();
6999
7000 let selections = self.selections.all::<Point>(cx);
7001 let mut selections = selections.iter().peekable();
7002 let mut contiguous_row_selections = Vec::new();
7003 let mut new_selections = Vec::new();
7004
7005 while let Some(selection) = selections.next() {
7006 // Find all the selections that span a contiguous row range
7007 let (start_row, end_row) = consume_contiguous_rows(
7008 &mut contiguous_row_selections,
7009 selection,
7010 &display_map,
7011 &mut selections,
7012 );
7013
7014 // Move the text spanned by the row range to be after the last line of the row range
7015 if end_row.0 <= buffer.max_point().row {
7016 let range_to_move =
7017 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
7018 let insertion_point = display_map
7019 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
7020 .0;
7021
7022 // Don't move lines across excerpt boundaries
7023 if buffer
7024 .excerpt_boundaries_in_range((
7025 Bound::Excluded(range_to_move.start),
7026 Bound::Included(insertion_point),
7027 ))
7028 .next()
7029 .is_none()
7030 {
7031 let mut text = String::from("\n");
7032 text.extend(buffer.text_for_range(range_to_move.clone()));
7033 text.pop(); // Drop trailing newline
7034 edits.push((
7035 buffer.anchor_after(range_to_move.start)
7036 ..buffer.anchor_before(range_to_move.end),
7037 String::new(),
7038 ));
7039 let insertion_anchor = buffer.anchor_after(insertion_point);
7040 edits.push((insertion_anchor..insertion_anchor, text));
7041
7042 let row_delta = insertion_point.row - range_to_move.end.row + 1;
7043
7044 // Move selections down
7045 new_selections.extend(contiguous_row_selections.drain(..).map(
7046 |mut selection| {
7047 selection.start.row += row_delta;
7048 selection.end.row += row_delta;
7049 selection
7050 },
7051 ));
7052
7053 // Move folds down
7054 unfold_ranges.push(range_to_move.clone());
7055 for fold in display_map.folds_in_range(
7056 buffer.anchor_before(range_to_move.start)
7057 ..buffer.anchor_after(range_to_move.end),
7058 ) {
7059 let mut start = fold.range.start.to_point(&buffer);
7060 let mut end = fold.range.end.to_point(&buffer);
7061 start.row += row_delta;
7062 end.row += row_delta;
7063 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
7064 }
7065 }
7066 }
7067
7068 // If we didn't move line(s), preserve the existing selections
7069 new_selections.append(&mut contiguous_row_selections);
7070 }
7071
7072 self.transact(cx, |this, cx| {
7073 this.unfold_ranges(&unfold_ranges, true, true, cx);
7074 this.buffer.update(cx, |buffer, cx| {
7075 for (range, text) in edits {
7076 buffer.edit([(range, text)], None, cx);
7077 }
7078 });
7079 this.fold_creases(refold_creases, true, cx);
7080 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
7081 });
7082 }
7083
7084 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
7085 let text_layout_details = &self.text_layout_details(cx);
7086 self.transact(cx, |this, cx| {
7087 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7088 let mut edits: Vec<(Range<usize>, String)> = Default::default();
7089 let line_mode = s.line_mode;
7090 s.move_with(|display_map, selection| {
7091 if !selection.is_empty() || line_mode {
7092 return;
7093 }
7094
7095 let mut head = selection.head();
7096 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
7097 if head.column() == display_map.line_len(head.row()) {
7098 transpose_offset = display_map
7099 .buffer_snapshot
7100 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7101 }
7102
7103 if transpose_offset == 0 {
7104 return;
7105 }
7106
7107 *head.column_mut() += 1;
7108 head = display_map.clip_point(head, Bias::Right);
7109 let goal = SelectionGoal::HorizontalPosition(
7110 display_map
7111 .x_for_display_point(head, text_layout_details)
7112 .into(),
7113 );
7114 selection.collapse_to(head, goal);
7115
7116 let transpose_start = display_map
7117 .buffer_snapshot
7118 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7119 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
7120 let transpose_end = display_map
7121 .buffer_snapshot
7122 .clip_offset(transpose_offset + 1, Bias::Right);
7123 if let Some(ch) =
7124 display_map.buffer_snapshot.chars_at(transpose_start).next()
7125 {
7126 edits.push((transpose_start..transpose_offset, String::new()));
7127 edits.push((transpose_end..transpose_end, ch.to_string()));
7128 }
7129 }
7130 });
7131 edits
7132 });
7133 this.buffer
7134 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7135 let selections = this.selections.all::<usize>(cx);
7136 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7137 s.select(selections);
7138 });
7139 });
7140 }
7141
7142 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
7143 self.rewrap_impl(IsVimMode::No, cx)
7144 }
7145
7146 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
7147 let buffer = self.buffer.read(cx).snapshot(cx);
7148 let selections = self.selections.all::<Point>(cx);
7149 let mut selections = selections.iter().peekable();
7150
7151 let mut edits = Vec::new();
7152 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
7153
7154 while let Some(selection) = selections.next() {
7155 let mut start_row = selection.start.row;
7156 let mut end_row = selection.end.row;
7157
7158 // Skip selections that overlap with a range that has already been rewrapped.
7159 let selection_range = start_row..end_row;
7160 if rewrapped_row_ranges
7161 .iter()
7162 .any(|range| range.overlaps(&selection_range))
7163 {
7164 continue;
7165 }
7166
7167 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
7168
7169 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7170 match language_scope.language_name().0.as_ref() {
7171 "Markdown" | "Plain Text" => {
7172 should_rewrap = true;
7173 }
7174 _ => {}
7175 }
7176 }
7177
7178 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
7179
7180 // Since not all lines in the selection may be at the same indent
7181 // level, choose the indent size that is the most common between all
7182 // of the lines.
7183 //
7184 // If there is a tie, we use the deepest indent.
7185 let (indent_size, indent_end) = {
7186 let mut indent_size_occurrences = HashMap::default();
7187 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7188
7189 for row in start_row..=end_row {
7190 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7191 rows_by_indent_size.entry(indent).or_default().push(row);
7192 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7193 }
7194
7195 let indent_size = indent_size_occurrences
7196 .into_iter()
7197 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
7198 .map(|(indent, _)| indent)
7199 .unwrap_or_default();
7200 let row = rows_by_indent_size[&indent_size][0];
7201 let indent_end = Point::new(row, indent_size.len);
7202
7203 (indent_size, indent_end)
7204 };
7205
7206 let mut line_prefix = indent_size.chars().collect::<String>();
7207
7208 if let Some(comment_prefix) =
7209 buffer
7210 .language_scope_at(selection.head())
7211 .and_then(|language| {
7212 language
7213 .line_comment_prefixes()
7214 .iter()
7215 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7216 .cloned()
7217 })
7218 {
7219 line_prefix.push_str(&comment_prefix);
7220 should_rewrap = true;
7221 }
7222
7223 if !should_rewrap {
7224 continue;
7225 }
7226
7227 if selection.is_empty() {
7228 'expand_upwards: while start_row > 0 {
7229 let prev_row = start_row - 1;
7230 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7231 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7232 {
7233 start_row = prev_row;
7234 } else {
7235 break 'expand_upwards;
7236 }
7237 }
7238
7239 'expand_downwards: while end_row < buffer.max_point().row {
7240 let next_row = end_row + 1;
7241 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7242 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7243 {
7244 end_row = next_row;
7245 } else {
7246 break 'expand_downwards;
7247 }
7248 }
7249 }
7250
7251 let start = Point::new(start_row, 0);
7252 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7253 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7254 let Some(lines_without_prefixes) = selection_text
7255 .lines()
7256 .map(|line| {
7257 line.strip_prefix(&line_prefix)
7258 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7259 .ok_or_else(|| {
7260 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7261 })
7262 })
7263 .collect::<Result<Vec<_>, _>>()
7264 .log_err()
7265 else {
7266 continue;
7267 };
7268
7269 let wrap_column = buffer
7270 .settings_at(Point::new(start_row, 0), cx)
7271 .preferred_line_length as usize;
7272 let wrapped_text = wrap_with_prefix(
7273 line_prefix,
7274 lines_without_prefixes.join(" "),
7275 wrap_column,
7276 tab_size,
7277 );
7278
7279 // TODO: should always use char-based diff while still supporting cursor behavior that
7280 // matches vim.
7281 let diff = match is_vim_mode {
7282 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
7283 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
7284 };
7285 let mut offset = start.to_offset(&buffer);
7286 let mut moved_since_edit = true;
7287
7288 for change in diff.iter_all_changes() {
7289 let value = change.value();
7290 match change.tag() {
7291 ChangeTag::Equal => {
7292 offset += value.len();
7293 moved_since_edit = true;
7294 }
7295 ChangeTag::Delete => {
7296 let start = buffer.anchor_after(offset);
7297 let end = buffer.anchor_before(offset + value.len());
7298
7299 if moved_since_edit {
7300 edits.push((start..end, String::new()));
7301 } else {
7302 edits.last_mut().unwrap().0.end = end;
7303 }
7304
7305 offset += value.len();
7306 moved_since_edit = false;
7307 }
7308 ChangeTag::Insert => {
7309 if moved_since_edit {
7310 let anchor = buffer.anchor_after(offset);
7311 edits.push((anchor..anchor, value.to_string()));
7312 } else {
7313 edits.last_mut().unwrap().1.push_str(value);
7314 }
7315
7316 moved_since_edit = false;
7317 }
7318 }
7319 }
7320
7321 rewrapped_row_ranges.push(start_row..=end_row);
7322 }
7323
7324 self.buffer
7325 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7326 }
7327
7328 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
7329 let mut text = String::new();
7330 let buffer = self.buffer.read(cx).snapshot(cx);
7331 let mut selections = self.selections.all::<Point>(cx);
7332 let mut clipboard_selections = Vec::with_capacity(selections.len());
7333 {
7334 let max_point = buffer.max_point();
7335 let mut is_first = true;
7336 for selection in &mut selections {
7337 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7338 if is_entire_line {
7339 selection.start = Point::new(selection.start.row, 0);
7340 if !selection.is_empty() && selection.end.column == 0 {
7341 selection.end = cmp::min(max_point, selection.end);
7342 } else {
7343 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7344 }
7345 selection.goal = SelectionGoal::None;
7346 }
7347 if is_first {
7348 is_first = false;
7349 } else {
7350 text += "\n";
7351 }
7352 let mut len = 0;
7353 for chunk in buffer.text_for_range(selection.start..selection.end) {
7354 text.push_str(chunk);
7355 len += chunk.len();
7356 }
7357 clipboard_selections.push(ClipboardSelection {
7358 len,
7359 is_entire_line,
7360 first_line_indent: buffer
7361 .indent_size_for_line(MultiBufferRow(selection.start.row))
7362 .len,
7363 });
7364 }
7365 }
7366
7367 self.transact(cx, |this, cx| {
7368 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7369 s.select(selections);
7370 });
7371 this.insert("", cx);
7372 });
7373 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
7374 }
7375
7376 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7377 let item = self.cut_common(cx);
7378 cx.write_to_clipboard(item);
7379 }
7380
7381 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
7382 self.change_selections(None, cx, |s| {
7383 s.move_with(|snapshot, sel| {
7384 if sel.is_empty() {
7385 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
7386 }
7387 });
7388 });
7389 let item = self.cut_common(cx);
7390 cx.set_global(KillRing(item))
7391 }
7392
7393 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
7394 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
7395 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
7396 (kill_ring.text().to_string(), kill_ring.metadata_json())
7397 } else {
7398 return;
7399 }
7400 } else {
7401 return;
7402 };
7403 self.do_paste(&text, metadata, false, cx);
7404 }
7405
7406 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7407 let selections = self.selections.all::<Point>(cx);
7408 let buffer = self.buffer.read(cx).read(cx);
7409 let mut text = String::new();
7410
7411 let mut clipboard_selections = Vec::with_capacity(selections.len());
7412 {
7413 let max_point = buffer.max_point();
7414 let mut is_first = true;
7415 for selection in selections.iter() {
7416 let mut start = selection.start;
7417 let mut end = selection.end;
7418 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7419 if is_entire_line {
7420 start = Point::new(start.row, 0);
7421 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7422 }
7423 if is_first {
7424 is_first = false;
7425 } else {
7426 text += "\n";
7427 }
7428 let mut len = 0;
7429 for chunk in buffer.text_for_range(start..end) {
7430 text.push_str(chunk);
7431 len += chunk.len();
7432 }
7433 clipboard_selections.push(ClipboardSelection {
7434 len,
7435 is_entire_line,
7436 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7437 });
7438 }
7439 }
7440
7441 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7442 text,
7443 clipboard_selections,
7444 ));
7445 }
7446
7447 pub fn do_paste(
7448 &mut self,
7449 text: &String,
7450 clipboard_selections: Option<Vec<ClipboardSelection>>,
7451 handle_entire_lines: bool,
7452 cx: &mut ViewContext<Self>,
7453 ) {
7454 if self.read_only(cx) {
7455 return;
7456 }
7457
7458 let clipboard_text = Cow::Borrowed(text);
7459
7460 self.transact(cx, |this, cx| {
7461 if let Some(mut clipboard_selections) = clipboard_selections {
7462 let old_selections = this.selections.all::<usize>(cx);
7463 let all_selections_were_entire_line =
7464 clipboard_selections.iter().all(|s| s.is_entire_line);
7465 let first_selection_indent_column =
7466 clipboard_selections.first().map(|s| s.first_line_indent);
7467 if clipboard_selections.len() != old_selections.len() {
7468 clipboard_selections.drain(..);
7469 }
7470 let cursor_offset = this.selections.last::<usize>(cx).head();
7471 let mut auto_indent_on_paste = true;
7472
7473 this.buffer.update(cx, |buffer, cx| {
7474 let snapshot = buffer.read(cx);
7475 auto_indent_on_paste =
7476 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7477
7478 let mut start_offset = 0;
7479 let mut edits = Vec::new();
7480 let mut original_indent_columns = Vec::new();
7481 for (ix, selection) in old_selections.iter().enumerate() {
7482 let to_insert;
7483 let entire_line;
7484 let original_indent_column;
7485 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7486 let end_offset = start_offset + clipboard_selection.len;
7487 to_insert = &clipboard_text[start_offset..end_offset];
7488 entire_line = clipboard_selection.is_entire_line;
7489 start_offset = end_offset + 1;
7490 original_indent_column = Some(clipboard_selection.first_line_indent);
7491 } else {
7492 to_insert = clipboard_text.as_str();
7493 entire_line = all_selections_were_entire_line;
7494 original_indent_column = first_selection_indent_column
7495 }
7496
7497 // If the corresponding selection was empty when this slice of the
7498 // clipboard text was written, then the entire line containing the
7499 // selection was copied. If this selection is also currently empty,
7500 // then paste the line before the current line of the buffer.
7501 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7502 let column = selection.start.to_point(&snapshot).column as usize;
7503 let line_start = selection.start - column;
7504 line_start..line_start
7505 } else {
7506 selection.range()
7507 };
7508
7509 edits.push((range, to_insert));
7510 original_indent_columns.extend(original_indent_column);
7511 }
7512 drop(snapshot);
7513
7514 buffer.edit(
7515 edits,
7516 if auto_indent_on_paste {
7517 Some(AutoindentMode::Block {
7518 original_indent_columns,
7519 })
7520 } else {
7521 None
7522 },
7523 cx,
7524 );
7525 });
7526
7527 let selections = this.selections.all::<usize>(cx);
7528 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7529 } else {
7530 this.insert(&clipboard_text, cx);
7531 }
7532 });
7533 }
7534
7535 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7536 if let Some(item) = cx.read_from_clipboard() {
7537 let entries = item.entries();
7538
7539 match entries.first() {
7540 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7541 // of all the pasted entries.
7542 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7543 .do_paste(
7544 clipboard_string.text(),
7545 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7546 true,
7547 cx,
7548 ),
7549 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7550 }
7551 }
7552 }
7553
7554 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7555 if self.read_only(cx) {
7556 return;
7557 }
7558
7559 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7560 if let Some((selections, _)) =
7561 self.selection_history.transaction(transaction_id).cloned()
7562 {
7563 self.change_selections(None, cx, |s| {
7564 s.select_anchors(selections.to_vec());
7565 });
7566 }
7567 self.request_autoscroll(Autoscroll::fit(), cx);
7568 self.unmark_text(cx);
7569 self.refresh_inline_completion(true, false, cx);
7570 cx.emit(EditorEvent::Edited { transaction_id });
7571 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7572 }
7573 }
7574
7575 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7576 if self.read_only(cx) {
7577 return;
7578 }
7579
7580 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7581 if let Some((_, Some(selections))) =
7582 self.selection_history.transaction(transaction_id).cloned()
7583 {
7584 self.change_selections(None, cx, |s| {
7585 s.select_anchors(selections.to_vec());
7586 });
7587 }
7588 self.request_autoscroll(Autoscroll::fit(), cx);
7589 self.unmark_text(cx);
7590 self.refresh_inline_completion(true, false, cx);
7591 cx.emit(EditorEvent::Edited { transaction_id });
7592 }
7593 }
7594
7595 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7596 self.buffer
7597 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7598 }
7599
7600 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7601 self.buffer
7602 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7603 }
7604
7605 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7606 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7607 let line_mode = s.line_mode;
7608 s.move_with(|map, selection| {
7609 let cursor = if selection.is_empty() && !line_mode {
7610 movement::left(map, selection.start)
7611 } else {
7612 selection.start
7613 };
7614 selection.collapse_to(cursor, SelectionGoal::None);
7615 });
7616 })
7617 }
7618
7619 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7620 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7621 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7622 })
7623 }
7624
7625 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7626 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7627 let line_mode = s.line_mode;
7628 s.move_with(|map, selection| {
7629 let cursor = if selection.is_empty() && !line_mode {
7630 movement::right(map, selection.end)
7631 } else {
7632 selection.end
7633 };
7634 selection.collapse_to(cursor, SelectionGoal::None)
7635 });
7636 })
7637 }
7638
7639 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7640 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7641 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7642 })
7643 }
7644
7645 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7646 if self.take_rename(true, cx).is_some() {
7647 return;
7648 }
7649
7650 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7651 cx.propagate();
7652 return;
7653 }
7654
7655 let text_layout_details = &self.text_layout_details(cx);
7656 let selection_count = self.selections.count();
7657 let first_selection = self.selections.first_anchor();
7658
7659 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7660 let line_mode = s.line_mode;
7661 s.move_with(|map, selection| {
7662 if !selection.is_empty() && !line_mode {
7663 selection.goal = SelectionGoal::None;
7664 }
7665 let (cursor, goal) = movement::up(
7666 map,
7667 selection.start,
7668 selection.goal,
7669 false,
7670 text_layout_details,
7671 );
7672 selection.collapse_to(cursor, goal);
7673 });
7674 });
7675
7676 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7677 {
7678 cx.propagate();
7679 }
7680 }
7681
7682 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7683 if self.take_rename(true, cx).is_some() {
7684 return;
7685 }
7686
7687 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7688 cx.propagate();
7689 return;
7690 }
7691
7692 let text_layout_details = &self.text_layout_details(cx);
7693
7694 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7695 let line_mode = s.line_mode;
7696 s.move_with(|map, selection| {
7697 if !selection.is_empty() && !line_mode {
7698 selection.goal = SelectionGoal::None;
7699 }
7700 let (cursor, goal) = movement::up_by_rows(
7701 map,
7702 selection.start,
7703 action.lines,
7704 selection.goal,
7705 false,
7706 text_layout_details,
7707 );
7708 selection.collapse_to(cursor, goal);
7709 });
7710 })
7711 }
7712
7713 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7714 if self.take_rename(true, cx).is_some() {
7715 return;
7716 }
7717
7718 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7719 cx.propagate();
7720 return;
7721 }
7722
7723 let text_layout_details = &self.text_layout_details(cx);
7724
7725 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7726 let line_mode = s.line_mode;
7727 s.move_with(|map, selection| {
7728 if !selection.is_empty() && !line_mode {
7729 selection.goal = SelectionGoal::None;
7730 }
7731 let (cursor, goal) = movement::down_by_rows(
7732 map,
7733 selection.start,
7734 action.lines,
7735 selection.goal,
7736 false,
7737 text_layout_details,
7738 );
7739 selection.collapse_to(cursor, goal);
7740 });
7741 })
7742 }
7743
7744 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7745 let text_layout_details = &self.text_layout_details(cx);
7746 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7747 s.move_heads_with(|map, head, goal| {
7748 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7749 })
7750 })
7751 }
7752
7753 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7754 let text_layout_details = &self.text_layout_details(cx);
7755 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7756 s.move_heads_with(|map, head, goal| {
7757 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7758 })
7759 })
7760 }
7761
7762 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7763 let Some(row_count) = self.visible_row_count() else {
7764 return;
7765 };
7766
7767 let text_layout_details = &self.text_layout_details(cx);
7768
7769 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7770 s.move_heads_with(|map, head, goal| {
7771 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7772 })
7773 })
7774 }
7775
7776 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7777 if self.take_rename(true, cx).is_some() {
7778 return;
7779 }
7780
7781 if self
7782 .context_menu
7783 .write()
7784 .as_mut()
7785 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7786 .unwrap_or(false)
7787 {
7788 return;
7789 }
7790
7791 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7792 cx.propagate();
7793 return;
7794 }
7795
7796 let Some(row_count) = self.visible_row_count() else {
7797 return;
7798 };
7799
7800 let autoscroll = if action.center_cursor {
7801 Autoscroll::center()
7802 } else {
7803 Autoscroll::fit()
7804 };
7805
7806 let text_layout_details = &self.text_layout_details(cx);
7807
7808 self.change_selections(Some(autoscroll), cx, |s| {
7809 let line_mode = s.line_mode;
7810 s.move_with(|map, selection| {
7811 if !selection.is_empty() && !line_mode {
7812 selection.goal = SelectionGoal::None;
7813 }
7814 let (cursor, goal) = movement::up_by_rows(
7815 map,
7816 selection.end,
7817 row_count,
7818 selection.goal,
7819 false,
7820 text_layout_details,
7821 );
7822 selection.collapse_to(cursor, goal);
7823 });
7824 });
7825 }
7826
7827 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7828 let text_layout_details = &self.text_layout_details(cx);
7829 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7830 s.move_heads_with(|map, head, goal| {
7831 movement::up(map, head, goal, false, text_layout_details)
7832 })
7833 })
7834 }
7835
7836 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7837 self.take_rename(true, cx);
7838
7839 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7840 cx.propagate();
7841 return;
7842 }
7843
7844 let text_layout_details = &self.text_layout_details(cx);
7845 let selection_count = self.selections.count();
7846 let first_selection = self.selections.first_anchor();
7847
7848 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7849 let line_mode = s.line_mode;
7850 s.move_with(|map, selection| {
7851 if !selection.is_empty() && !line_mode {
7852 selection.goal = SelectionGoal::None;
7853 }
7854 let (cursor, goal) = movement::down(
7855 map,
7856 selection.end,
7857 selection.goal,
7858 false,
7859 text_layout_details,
7860 );
7861 selection.collapse_to(cursor, goal);
7862 });
7863 });
7864
7865 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7866 {
7867 cx.propagate();
7868 }
7869 }
7870
7871 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7872 let Some(row_count) = self.visible_row_count() else {
7873 return;
7874 };
7875
7876 let text_layout_details = &self.text_layout_details(cx);
7877
7878 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7879 s.move_heads_with(|map, head, goal| {
7880 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7881 })
7882 })
7883 }
7884
7885 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7886 if self.take_rename(true, cx).is_some() {
7887 return;
7888 }
7889
7890 if self
7891 .context_menu
7892 .write()
7893 .as_mut()
7894 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7895 .unwrap_or(false)
7896 {
7897 return;
7898 }
7899
7900 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7901 cx.propagate();
7902 return;
7903 }
7904
7905 let Some(row_count) = self.visible_row_count() else {
7906 return;
7907 };
7908
7909 let autoscroll = if action.center_cursor {
7910 Autoscroll::center()
7911 } else {
7912 Autoscroll::fit()
7913 };
7914
7915 let text_layout_details = &self.text_layout_details(cx);
7916 self.change_selections(Some(autoscroll), cx, |s| {
7917 let line_mode = s.line_mode;
7918 s.move_with(|map, selection| {
7919 if !selection.is_empty() && !line_mode {
7920 selection.goal = SelectionGoal::None;
7921 }
7922 let (cursor, goal) = movement::down_by_rows(
7923 map,
7924 selection.end,
7925 row_count,
7926 selection.goal,
7927 false,
7928 text_layout_details,
7929 );
7930 selection.collapse_to(cursor, goal);
7931 });
7932 });
7933 }
7934
7935 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7936 let text_layout_details = &self.text_layout_details(cx);
7937 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7938 s.move_heads_with(|map, head, goal| {
7939 movement::down(map, head, goal, false, text_layout_details)
7940 })
7941 });
7942 }
7943
7944 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7945 if let Some(context_menu) = self.context_menu.write().as_mut() {
7946 context_menu.select_first(self.completion_provider.as_deref(), cx);
7947 }
7948 }
7949
7950 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7951 if let Some(context_menu) = self.context_menu.write().as_mut() {
7952 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7953 }
7954 }
7955
7956 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7957 if let Some(context_menu) = self.context_menu.write().as_mut() {
7958 context_menu.select_next(self.completion_provider.as_deref(), cx);
7959 }
7960 }
7961
7962 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7963 if let Some(context_menu) = self.context_menu.write().as_mut() {
7964 context_menu.select_last(self.completion_provider.as_deref(), cx);
7965 }
7966 }
7967
7968 pub fn move_to_previous_word_start(
7969 &mut self,
7970 _: &MoveToPreviousWordStart,
7971 cx: &mut ViewContext<Self>,
7972 ) {
7973 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7974 s.move_cursors_with(|map, head, _| {
7975 (
7976 movement::previous_word_start(map, head),
7977 SelectionGoal::None,
7978 )
7979 });
7980 })
7981 }
7982
7983 pub fn move_to_previous_subword_start(
7984 &mut self,
7985 _: &MoveToPreviousSubwordStart,
7986 cx: &mut ViewContext<Self>,
7987 ) {
7988 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7989 s.move_cursors_with(|map, head, _| {
7990 (
7991 movement::previous_subword_start(map, head),
7992 SelectionGoal::None,
7993 )
7994 });
7995 })
7996 }
7997
7998 pub fn select_to_previous_word_start(
7999 &mut self,
8000 _: &SelectToPreviousWordStart,
8001 cx: &mut ViewContext<Self>,
8002 ) {
8003 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8004 s.move_heads_with(|map, head, _| {
8005 (
8006 movement::previous_word_start(map, head),
8007 SelectionGoal::None,
8008 )
8009 });
8010 })
8011 }
8012
8013 pub fn select_to_previous_subword_start(
8014 &mut self,
8015 _: &SelectToPreviousSubwordStart,
8016 cx: &mut ViewContext<Self>,
8017 ) {
8018 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8019 s.move_heads_with(|map, head, _| {
8020 (
8021 movement::previous_subword_start(map, head),
8022 SelectionGoal::None,
8023 )
8024 });
8025 })
8026 }
8027
8028 pub fn delete_to_previous_word_start(
8029 &mut self,
8030 action: &DeleteToPreviousWordStart,
8031 cx: &mut ViewContext<Self>,
8032 ) {
8033 self.transact(cx, |this, cx| {
8034 this.select_autoclose_pair(cx);
8035 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8036 let line_mode = s.line_mode;
8037 s.move_with(|map, selection| {
8038 if selection.is_empty() && !line_mode {
8039 let cursor = if action.ignore_newlines {
8040 movement::previous_word_start(map, selection.head())
8041 } else {
8042 movement::previous_word_start_or_newline(map, selection.head())
8043 };
8044 selection.set_head(cursor, SelectionGoal::None);
8045 }
8046 });
8047 });
8048 this.insert("", cx);
8049 });
8050 }
8051
8052 pub fn delete_to_previous_subword_start(
8053 &mut self,
8054 _: &DeleteToPreviousSubwordStart,
8055 cx: &mut ViewContext<Self>,
8056 ) {
8057 self.transact(cx, |this, cx| {
8058 this.select_autoclose_pair(cx);
8059 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8060 let line_mode = s.line_mode;
8061 s.move_with(|map, selection| {
8062 if selection.is_empty() && !line_mode {
8063 let cursor = movement::previous_subword_start(map, selection.head());
8064 selection.set_head(cursor, SelectionGoal::None);
8065 }
8066 });
8067 });
8068 this.insert("", cx);
8069 });
8070 }
8071
8072 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
8073 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8074 s.move_cursors_with(|map, head, _| {
8075 (movement::next_word_end(map, head), SelectionGoal::None)
8076 });
8077 })
8078 }
8079
8080 pub fn move_to_next_subword_end(
8081 &mut self,
8082 _: &MoveToNextSubwordEnd,
8083 cx: &mut ViewContext<Self>,
8084 ) {
8085 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8086 s.move_cursors_with(|map, head, _| {
8087 (movement::next_subword_end(map, head), SelectionGoal::None)
8088 });
8089 })
8090 }
8091
8092 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
8093 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8094 s.move_heads_with(|map, head, _| {
8095 (movement::next_word_end(map, head), SelectionGoal::None)
8096 });
8097 })
8098 }
8099
8100 pub fn select_to_next_subword_end(
8101 &mut self,
8102 _: &SelectToNextSubwordEnd,
8103 cx: &mut ViewContext<Self>,
8104 ) {
8105 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8106 s.move_heads_with(|map, head, _| {
8107 (movement::next_subword_end(map, head), SelectionGoal::None)
8108 });
8109 })
8110 }
8111
8112 pub fn delete_to_next_word_end(
8113 &mut self,
8114 action: &DeleteToNextWordEnd,
8115 cx: &mut ViewContext<Self>,
8116 ) {
8117 self.transact(cx, |this, cx| {
8118 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8119 let line_mode = s.line_mode;
8120 s.move_with(|map, selection| {
8121 if selection.is_empty() && !line_mode {
8122 let cursor = if action.ignore_newlines {
8123 movement::next_word_end(map, selection.head())
8124 } else {
8125 movement::next_word_end_or_newline(map, selection.head())
8126 };
8127 selection.set_head(cursor, SelectionGoal::None);
8128 }
8129 });
8130 });
8131 this.insert("", cx);
8132 });
8133 }
8134
8135 pub fn delete_to_next_subword_end(
8136 &mut self,
8137 _: &DeleteToNextSubwordEnd,
8138 cx: &mut ViewContext<Self>,
8139 ) {
8140 self.transact(cx, |this, cx| {
8141 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8142 s.move_with(|map, selection| {
8143 if selection.is_empty() {
8144 let cursor = movement::next_subword_end(map, selection.head());
8145 selection.set_head(cursor, SelectionGoal::None);
8146 }
8147 });
8148 });
8149 this.insert("", cx);
8150 });
8151 }
8152
8153 pub fn move_to_beginning_of_line(
8154 &mut self,
8155 action: &MoveToBeginningOfLine,
8156 cx: &mut ViewContext<Self>,
8157 ) {
8158 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8159 s.move_cursors_with(|map, head, _| {
8160 (
8161 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8162 SelectionGoal::None,
8163 )
8164 });
8165 })
8166 }
8167
8168 pub fn select_to_beginning_of_line(
8169 &mut self,
8170 action: &SelectToBeginningOfLine,
8171 cx: &mut ViewContext<Self>,
8172 ) {
8173 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8174 s.move_heads_with(|map, head, _| {
8175 (
8176 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8177 SelectionGoal::None,
8178 )
8179 });
8180 });
8181 }
8182
8183 pub fn delete_to_beginning_of_line(
8184 &mut self,
8185 _: &DeleteToBeginningOfLine,
8186 cx: &mut ViewContext<Self>,
8187 ) {
8188 self.transact(cx, |this, cx| {
8189 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8190 s.move_with(|_, selection| {
8191 selection.reversed = true;
8192 });
8193 });
8194
8195 this.select_to_beginning_of_line(
8196 &SelectToBeginningOfLine {
8197 stop_at_soft_wraps: false,
8198 },
8199 cx,
8200 );
8201 this.backspace(&Backspace, cx);
8202 });
8203 }
8204
8205 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
8206 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8207 s.move_cursors_with(|map, head, _| {
8208 (
8209 movement::line_end(map, head, action.stop_at_soft_wraps),
8210 SelectionGoal::None,
8211 )
8212 });
8213 })
8214 }
8215
8216 pub fn select_to_end_of_line(
8217 &mut self,
8218 action: &SelectToEndOfLine,
8219 cx: &mut ViewContext<Self>,
8220 ) {
8221 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8222 s.move_heads_with(|map, head, _| {
8223 (
8224 movement::line_end(map, head, action.stop_at_soft_wraps),
8225 SelectionGoal::None,
8226 )
8227 });
8228 })
8229 }
8230
8231 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
8232 self.transact(cx, |this, cx| {
8233 this.select_to_end_of_line(
8234 &SelectToEndOfLine {
8235 stop_at_soft_wraps: false,
8236 },
8237 cx,
8238 );
8239 this.delete(&Delete, cx);
8240 });
8241 }
8242
8243 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
8244 self.transact(cx, |this, cx| {
8245 this.select_to_end_of_line(
8246 &SelectToEndOfLine {
8247 stop_at_soft_wraps: false,
8248 },
8249 cx,
8250 );
8251 this.cut(&Cut, cx);
8252 });
8253 }
8254
8255 pub fn move_to_start_of_paragraph(
8256 &mut self,
8257 _: &MoveToStartOfParagraph,
8258 cx: &mut ViewContext<Self>,
8259 ) {
8260 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8261 cx.propagate();
8262 return;
8263 }
8264
8265 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8266 s.move_with(|map, selection| {
8267 selection.collapse_to(
8268 movement::start_of_paragraph(map, selection.head(), 1),
8269 SelectionGoal::None,
8270 )
8271 });
8272 })
8273 }
8274
8275 pub fn move_to_end_of_paragraph(
8276 &mut self,
8277 _: &MoveToEndOfParagraph,
8278 cx: &mut ViewContext<Self>,
8279 ) {
8280 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8281 cx.propagate();
8282 return;
8283 }
8284
8285 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8286 s.move_with(|map, selection| {
8287 selection.collapse_to(
8288 movement::end_of_paragraph(map, selection.head(), 1),
8289 SelectionGoal::None,
8290 )
8291 });
8292 })
8293 }
8294
8295 pub fn select_to_start_of_paragraph(
8296 &mut self,
8297 _: &SelectToStartOfParagraph,
8298 cx: &mut ViewContext<Self>,
8299 ) {
8300 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8301 cx.propagate();
8302 return;
8303 }
8304
8305 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8306 s.move_heads_with(|map, head, _| {
8307 (
8308 movement::start_of_paragraph(map, head, 1),
8309 SelectionGoal::None,
8310 )
8311 });
8312 })
8313 }
8314
8315 pub fn select_to_end_of_paragraph(
8316 &mut self,
8317 _: &SelectToEndOfParagraph,
8318 cx: &mut ViewContext<Self>,
8319 ) {
8320 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8321 cx.propagate();
8322 return;
8323 }
8324
8325 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8326 s.move_heads_with(|map, head, _| {
8327 (
8328 movement::end_of_paragraph(map, head, 1),
8329 SelectionGoal::None,
8330 )
8331 });
8332 })
8333 }
8334
8335 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8336 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8337 cx.propagate();
8338 return;
8339 }
8340
8341 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8342 s.select_ranges(vec![0..0]);
8343 });
8344 }
8345
8346 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8347 let mut selection = self.selections.last::<Point>(cx);
8348 selection.set_head(Point::zero(), SelectionGoal::None);
8349
8350 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8351 s.select(vec![selection]);
8352 });
8353 }
8354
8355 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8356 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8357 cx.propagate();
8358 return;
8359 }
8360
8361 let cursor = self.buffer.read(cx).read(cx).len();
8362 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8363 s.select_ranges(vec![cursor..cursor])
8364 });
8365 }
8366
8367 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8368 self.nav_history = nav_history;
8369 }
8370
8371 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8372 self.nav_history.as_ref()
8373 }
8374
8375 fn push_to_nav_history(
8376 &mut self,
8377 cursor_anchor: Anchor,
8378 new_position: Option<Point>,
8379 cx: &mut ViewContext<Self>,
8380 ) {
8381 if let Some(nav_history) = self.nav_history.as_mut() {
8382 let buffer = self.buffer.read(cx).read(cx);
8383 let cursor_position = cursor_anchor.to_point(&buffer);
8384 let scroll_state = self.scroll_manager.anchor();
8385 let scroll_top_row = scroll_state.top_row(&buffer);
8386 drop(buffer);
8387
8388 if let Some(new_position) = new_position {
8389 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8390 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8391 return;
8392 }
8393 }
8394
8395 nav_history.push(
8396 Some(NavigationData {
8397 cursor_anchor,
8398 cursor_position,
8399 scroll_anchor: scroll_state,
8400 scroll_top_row,
8401 }),
8402 cx,
8403 );
8404 }
8405 }
8406
8407 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8408 let buffer = self.buffer.read(cx).snapshot(cx);
8409 let mut selection = self.selections.first::<usize>(cx);
8410 selection.set_head(buffer.len(), SelectionGoal::None);
8411 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8412 s.select(vec![selection]);
8413 });
8414 }
8415
8416 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8417 let end = self.buffer.read(cx).read(cx).len();
8418 self.change_selections(None, cx, |s| {
8419 s.select_ranges(vec![0..end]);
8420 });
8421 }
8422
8423 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8424 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8425 let mut selections = self.selections.all::<Point>(cx);
8426 let max_point = display_map.buffer_snapshot.max_point();
8427 for selection in &mut selections {
8428 let rows = selection.spanned_rows(true, &display_map);
8429 selection.start = Point::new(rows.start.0, 0);
8430 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8431 selection.reversed = false;
8432 }
8433 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8434 s.select(selections);
8435 });
8436 }
8437
8438 pub fn split_selection_into_lines(
8439 &mut self,
8440 _: &SplitSelectionIntoLines,
8441 cx: &mut ViewContext<Self>,
8442 ) {
8443 let mut to_unfold = Vec::new();
8444 let mut new_selection_ranges = Vec::new();
8445 {
8446 let selections = self.selections.all::<Point>(cx);
8447 let buffer = self.buffer.read(cx).read(cx);
8448 for selection in selections {
8449 for row in selection.start.row..selection.end.row {
8450 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8451 new_selection_ranges.push(cursor..cursor);
8452 }
8453 new_selection_ranges.push(selection.end..selection.end);
8454 to_unfold.push(selection.start..selection.end);
8455 }
8456 }
8457 self.unfold_ranges(&to_unfold, true, true, cx);
8458 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8459 s.select_ranges(new_selection_ranges);
8460 });
8461 }
8462
8463 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8464 self.add_selection(true, cx);
8465 }
8466
8467 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8468 self.add_selection(false, cx);
8469 }
8470
8471 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8472 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8473 let mut selections = self.selections.all::<Point>(cx);
8474 let text_layout_details = self.text_layout_details(cx);
8475 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8476 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8477 let range = oldest_selection.display_range(&display_map).sorted();
8478
8479 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8480 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8481 let positions = start_x.min(end_x)..start_x.max(end_x);
8482
8483 selections.clear();
8484 let mut stack = Vec::new();
8485 for row in range.start.row().0..=range.end.row().0 {
8486 if let Some(selection) = self.selections.build_columnar_selection(
8487 &display_map,
8488 DisplayRow(row),
8489 &positions,
8490 oldest_selection.reversed,
8491 &text_layout_details,
8492 ) {
8493 stack.push(selection.id);
8494 selections.push(selection);
8495 }
8496 }
8497
8498 if above {
8499 stack.reverse();
8500 }
8501
8502 AddSelectionsState { above, stack }
8503 });
8504
8505 let last_added_selection = *state.stack.last().unwrap();
8506 let mut new_selections = Vec::new();
8507 if above == state.above {
8508 let end_row = if above {
8509 DisplayRow(0)
8510 } else {
8511 display_map.max_point().row()
8512 };
8513
8514 'outer: for selection in selections {
8515 if selection.id == last_added_selection {
8516 let range = selection.display_range(&display_map).sorted();
8517 debug_assert_eq!(range.start.row(), range.end.row());
8518 let mut row = range.start.row();
8519 let positions =
8520 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8521 px(start)..px(end)
8522 } else {
8523 let start_x =
8524 display_map.x_for_display_point(range.start, &text_layout_details);
8525 let end_x =
8526 display_map.x_for_display_point(range.end, &text_layout_details);
8527 start_x.min(end_x)..start_x.max(end_x)
8528 };
8529
8530 while row != end_row {
8531 if above {
8532 row.0 -= 1;
8533 } else {
8534 row.0 += 1;
8535 }
8536
8537 if let Some(new_selection) = self.selections.build_columnar_selection(
8538 &display_map,
8539 row,
8540 &positions,
8541 selection.reversed,
8542 &text_layout_details,
8543 ) {
8544 state.stack.push(new_selection.id);
8545 if above {
8546 new_selections.push(new_selection);
8547 new_selections.push(selection);
8548 } else {
8549 new_selections.push(selection);
8550 new_selections.push(new_selection);
8551 }
8552
8553 continue 'outer;
8554 }
8555 }
8556 }
8557
8558 new_selections.push(selection);
8559 }
8560 } else {
8561 new_selections = selections;
8562 new_selections.retain(|s| s.id != last_added_selection);
8563 state.stack.pop();
8564 }
8565
8566 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8567 s.select(new_selections);
8568 });
8569 if state.stack.len() > 1 {
8570 self.add_selections_state = Some(state);
8571 }
8572 }
8573
8574 pub fn select_next_match_internal(
8575 &mut self,
8576 display_map: &DisplaySnapshot,
8577 replace_newest: bool,
8578 autoscroll: Option<Autoscroll>,
8579 cx: &mut ViewContext<Self>,
8580 ) -> Result<()> {
8581 fn select_next_match_ranges(
8582 this: &mut Editor,
8583 range: Range<usize>,
8584 replace_newest: bool,
8585 auto_scroll: Option<Autoscroll>,
8586 cx: &mut ViewContext<Editor>,
8587 ) {
8588 this.unfold_ranges(&[range.clone()], false, true, cx);
8589 this.change_selections(auto_scroll, cx, |s| {
8590 if replace_newest {
8591 s.delete(s.newest_anchor().id);
8592 }
8593 s.insert_range(range.clone());
8594 });
8595 }
8596
8597 let buffer = &display_map.buffer_snapshot;
8598 let mut selections = self.selections.all::<usize>(cx);
8599 if let Some(mut select_next_state) = self.select_next_state.take() {
8600 let query = &select_next_state.query;
8601 if !select_next_state.done {
8602 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8603 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8604 let mut next_selected_range = None;
8605
8606 let bytes_after_last_selection =
8607 buffer.bytes_in_range(last_selection.end..buffer.len());
8608 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8609 let query_matches = query
8610 .stream_find_iter(bytes_after_last_selection)
8611 .map(|result| (last_selection.end, result))
8612 .chain(
8613 query
8614 .stream_find_iter(bytes_before_first_selection)
8615 .map(|result| (0, result)),
8616 );
8617
8618 for (start_offset, query_match) in query_matches {
8619 let query_match = query_match.unwrap(); // can only fail due to I/O
8620 let offset_range =
8621 start_offset + query_match.start()..start_offset + query_match.end();
8622 let display_range = offset_range.start.to_display_point(display_map)
8623 ..offset_range.end.to_display_point(display_map);
8624
8625 if !select_next_state.wordwise
8626 || (!movement::is_inside_word(display_map, display_range.start)
8627 && !movement::is_inside_word(display_map, display_range.end))
8628 {
8629 // TODO: This is n^2, because we might check all the selections
8630 if !selections
8631 .iter()
8632 .any(|selection| selection.range().overlaps(&offset_range))
8633 {
8634 next_selected_range = Some(offset_range);
8635 break;
8636 }
8637 }
8638 }
8639
8640 if let Some(next_selected_range) = next_selected_range {
8641 select_next_match_ranges(
8642 self,
8643 next_selected_range,
8644 replace_newest,
8645 autoscroll,
8646 cx,
8647 );
8648 } else {
8649 select_next_state.done = true;
8650 }
8651 }
8652
8653 self.select_next_state = Some(select_next_state);
8654 } else {
8655 let mut only_carets = true;
8656 let mut same_text_selected = true;
8657 let mut selected_text = None;
8658
8659 let mut selections_iter = selections.iter().peekable();
8660 while let Some(selection) = selections_iter.next() {
8661 if selection.start != selection.end {
8662 only_carets = false;
8663 }
8664
8665 if same_text_selected {
8666 if selected_text.is_none() {
8667 selected_text =
8668 Some(buffer.text_for_range(selection.range()).collect::<String>());
8669 }
8670
8671 if let Some(next_selection) = selections_iter.peek() {
8672 if next_selection.range().len() == selection.range().len() {
8673 let next_selected_text = buffer
8674 .text_for_range(next_selection.range())
8675 .collect::<String>();
8676 if Some(next_selected_text) != selected_text {
8677 same_text_selected = false;
8678 selected_text = None;
8679 }
8680 } else {
8681 same_text_selected = false;
8682 selected_text = None;
8683 }
8684 }
8685 }
8686 }
8687
8688 if only_carets {
8689 for selection in &mut selections {
8690 let word_range = movement::surrounding_word(
8691 display_map,
8692 selection.start.to_display_point(display_map),
8693 );
8694 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8695 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8696 selection.goal = SelectionGoal::None;
8697 selection.reversed = false;
8698 select_next_match_ranges(
8699 self,
8700 selection.start..selection.end,
8701 replace_newest,
8702 autoscroll,
8703 cx,
8704 );
8705 }
8706
8707 if selections.len() == 1 {
8708 let selection = selections
8709 .last()
8710 .expect("ensured that there's only one selection");
8711 let query = buffer
8712 .text_for_range(selection.start..selection.end)
8713 .collect::<String>();
8714 let is_empty = query.is_empty();
8715 let select_state = SelectNextState {
8716 query: AhoCorasick::new(&[query])?,
8717 wordwise: true,
8718 done: is_empty,
8719 };
8720 self.select_next_state = Some(select_state);
8721 } else {
8722 self.select_next_state = None;
8723 }
8724 } else if let Some(selected_text) = selected_text {
8725 self.select_next_state = Some(SelectNextState {
8726 query: AhoCorasick::new(&[selected_text])?,
8727 wordwise: false,
8728 done: false,
8729 });
8730 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8731 }
8732 }
8733 Ok(())
8734 }
8735
8736 pub fn select_all_matches(
8737 &mut self,
8738 _action: &SelectAllMatches,
8739 cx: &mut ViewContext<Self>,
8740 ) -> Result<()> {
8741 self.push_to_selection_history();
8742 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8743
8744 self.select_next_match_internal(&display_map, false, None, cx)?;
8745 let Some(select_next_state) = self.select_next_state.as_mut() else {
8746 return Ok(());
8747 };
8748 if select_next_state.done {
8749 return Ok(());
8750 }
8751
8752 let mut new_selections = self.selections.all::<usize>(cx);
8753
8754 let buffer = &display_map.buffer_snapshot;
8755 let query_matches = select_next_state
8756 .query
8757 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8758
8759 for query_match in query_matches {
8760 let query_match = query_match.unwrap(); // can only fail due to I/O
8761 let offset_range = query_match.start()..query_match.end();
8762 let display_range = offset_range.start.to_display_point(&display_map)
8763 ..offset_range.end.to_display_point(&display_map);
8764
8765 if !select_next_state.wordwise
8766 || (!movement::is_inside_word(&display_map, display_range.start)
8767 && !movement::is_inside_word(&display_map, display_range.end))
8768 {
8769 self.selections.change_with(cx, |selections| {
8770 new_selections.push(Selection {
8771 id: selections.new_selection_id(),
8772 start: offset_range.start,
8773 end: offset_range.end,
8774 reversed: false,
8775 goal: SelectionGoal::None,
8776 });
8777 });
8778 }
8779 }
8780
8781 new_selections.sort_by_key(|selection| selection.start);
8782 let mut ix = 0;
8783 while ix + 1 < new_selections.len() {
8784 let current_selection = &new_selections[ix];
8785 let next_selection = &new_selections[ix + 1];
8786 if current_selection.range().overlaps(&next_selection.range()) {
8787 if current_selection.id < next_selection.id {
8788 new_selections.remove(ix + 1);
8789 } else {
8790 new_selections.remove(ix);
8791 }
8792 } else {
8793 ix += 1;
8794 }
8795 }
8796
8797 select_next_state.done = true;
8798 self.unfold_ranges(
8799 &new_selections
8800 .iter()
8801 .map(|selection| selection.range())
8802 .collect::<Vec<_>>(),
8803 false,
8804 false,
8805 cx,
8806 );
8807 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8808 selections.select(new_selections)
8809 });
8810
8811 Ok(())
8812 }
8813
8814 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8815 self.push_to_selection_history();
8816 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8817 self.select_next_match_internal(
8818 &display_map,
8819 action.replace_newest,
8820 Some(Autoscroll::newest()),
8821 cx,
8822 )?;
8823 Ok(())
8824 }
8825
8826 pub fn select_previous(
8827 &mut self,
8828 action: &SelectPrevious,
8829 cx: &mut ViewContext<Self>,
8830 ) -> Result<()> {
8831 self.push_to_selection_history();
8832 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8833 let buffer = &display_map.buffer_snapshot;
8834 let mut selections = self.selections.all::<usize>(cx);
8835 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8836 let query = &select_prev_state.query;
8837 if !select_prev_state.done {
8838 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8839 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8840 let mut next_selected_range = None;
8841 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8842 let bytes_before_last_selection =
8843 buffer.reversed_bytes_in_range(0..last_selection.start);
8844 let bytes_after_first_selection =
8845 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8846 let query_matches = query
8847 .stream_find_iter(bytes_before_last_selection)
8848 .map(|result| (last_selection.start, result))
8849 .chain(
8850 query
8851 .stream_find_iter(bytes_after_first_selection)
8852 .map(|result| (buffer.len(), result)),
8853 );
8854 for (end_offset, query_match) in query_matches {
8855 let query_match = query_match.unwrap(); // can only fail due to I/O
8856 let offset_range =
8857 end_offset - query_match.end()..end_offset - query_match.start();
8858 let display_range = offset_range.start.to_display_point(&display_map)
8859 ..offset_range.end.to_display_point(&display_map);
8860
8861 if !select_prev_state.wordwise
8862 || (!movement::is_inside_word(&display_map, display_range.start)
8863 && !movement::is_inside_word(&display_map, display_range.end))
8864 {
8865 next_selected_range = Some(offset_range);
8866 break;
8867 }
8868 }
8869
8870 if let Some(next_selected_range) = next_selected_range {
8871 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8872 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8873 if action.replace_newest {
8874 s.delete(s.newest_anchor().id);
8875 }
8876 s.insert_range(next_selected_range);
8877 });
8878 } else {
8879 select_prev_state.done = true;
8880 }
8881 }
8882
8883 self.select_prev_state = Some(select_prev_state);
8884 } else {
8885 let mut only_carets = true;
8886 let mut same_text_selected = true;
8887 let mut selected_text = None;
8888
8889 let mut selections_iter = selections.iter().peekable();
8890 while let Some(selection) = selections_iter.next() {
8891 if selection.start != selection.end {
8892 only_carets = false;
8893 }
8894
8895 if same_text_selected {
8896 if selected_text.is_none() {
8897 selected_text =
8898 Some(buffer.text_for_range(selection.range()).collect::<String>());
8899 }
8900
8901 if let Some(next_selection) = selections_iter.peek() {
8902 if next_selection.range().len() == selection.range().len() {
8903 let next_selected_text = buffer
8904 .text_for_range(next_selection.range())
8905 .collect::<String>();
8906 if Some(next_selected_text) != selected_text {
8907 same_text_selected = false;
8908 selected_text = None;
8909 }
8910 } else {
8911 same_text_selected = false;
8912 selected_text = None;
8913 }
8914 }
8915 }
8916 }
8917
8918 if only_carets {
8919 for selection in &mut selections {
8920 let word_range = movement::surrounding_word(
8921 &display_map,
8922 selection.start.to_display_point(&display_map),
8923 );
8924 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8925 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8926 selection.goal = SelectionGoal::None;
8927 selection.reversed = false;
8928 }
8929 if selections.len() == 1 {
8930 let selection = selections
8931 .last()
8932 .expect("ensured that there's only one selection");
8933 let query = buffer
8934 .text_for_range(selection.start..selection.end)
8935 .collect::<String>();
8936 let is_empty = query.is_empty();
8937 let select_state = SelectNextState {
8938 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8939 wordwise: true,
8940 done: is_empty,
8941 };
8942 self.select_prev_state = Some(select_state);
8943 } else {
8944 self.select_prev_state = None;
8945 }
8946
8947 self.unfold_ranges(
8948 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8949 false,
8950 true,
8951 cx,
8952 );
8953 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8954 s.select(selections);
8955 });
8956 } else if let Some(selected_text) = selected_text {
8957 self.select_prev_state = Some(SelectNextState {
8958 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8959 wordwise: false,
8960 done: false,
8961 });
8962 self.select_previous(action, cx)?;
8963 }
8964 }
8965 Ok(())
8966 }
8967
8968 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8969 if self.read_only(cx) {
8970 return;
8971 }
8972 let text_layout_details = &self.text_layout_details(cx);
8973 self.transact(cx, |this, cx| {
8974 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8975 let mut edits = Vec::new();
8976 let mut selection_edit_ranges = Vec::new();
8977 let mut last_toggled_row = None;
8978 let snapshot = this.buffer.read(cx).read(cx);
8979 let empty_str: Arc<str> = Arc::default();
8980 let mut suffixes_inserted = Vec::new();
8981 let ignore_indent = action.ignore_indent;
8982
8983 fn comment_prefix_range(
8984 snapshot: &MultiBufferSnapshot,
8985 row: MultiBufferRow,
8986 comment_prefix: &str,
8987 comment_prefix_whitespace: &str,
8988 ignore_indent: bool,
8989 ) -> Range<Point> {
8990 let indent_size = if ignore_indent {
8991 0
8992 } else {
8993 snapshot.indent_size_for_line(row).len
8994 };
8995
8996 let start = Point::new(row.0, indent_size);
8997
8998 let mut line_bytes = snapshot
8999 .bytes_in_range(start..snapshot.max_point())
9000 .flatten()
9001 .copied();
9002
9003 // If this line currently begins with the line comment prefix, then record
9004 // the range containing the prefix.
9005 if line_bytes
9006 .by_ref()
9007 .take(comment_prefix.len())
9008 .eq(comment_prefix.bytes())
9009 {
9010 // Include any whitespace that matches the comment prefix.
9011 let matching_whitespace_len = line_bytes
9012 .zip(comment_prefix_whitespace.bytes())
9013 .take_while(|(a, b)| a == b)
9014 .count() as u32;
9015 let end = Point::new(
9016 start.row,
9017 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
9018 );
9019 start..end
9020 } else {
9021 start..start
9022 }
9023 }
9024
9025 fn comment_suffix_range(
9026 snapshot: &MultiBufferSnapshot,
9027 row: MultiBufferRow,
9028 comment_suffix: &str,
9029 comment_suffix_has_leading_space: bool,
9030 ) -> Range<Point> {
9031 let end = Point::new(row.0, snapshot.line_len(row));
9032 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
9033
9034 let mut line_end_bytes = snapshot
9035 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
9036 .flatten()
9037 .copied();
9038
9039 let leading_space_len = if suffix_start_column > 0
9040 && line_end_bytes.next() == Some(b' ')
9041 && comment_suffix_has_leading_space
9042 {
9043 1
9044 } else {
9045 0
9046 };
9047
9048 // If this line currently begins with the line comment prefix, then record
9049 // the range containing the prefix.
9050 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
9051 let start = Point::new(end.row, suffix_start_column - leading_space_len);
9052 start..end
9053 } else {
9054 end..end
9055 }
9056 }
9057
9058 // TODO: Handle selections that cross excerpts
9059 for selection in &mut selections {
9060 let start_column = snapshot
9061 .indent_size_for_line(MultiBufferRow(selection.start.row))
9062 .len;
9063 let language = if let Some(language) =
9064 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
9065 {
9066 language
9067 } else {
9068 continue;
9069 };
9070
9071 selection_edit_ranges.clear();
9072
9073 // If multiple selections contain a given row, avoid processing that
9074 // row more than once.
9075 let mut start_row = MultiBufferRow(selection.start.row);
9076 if last_toggled_row == Some(start_row) {
9077 start_row = start_row.next_row();
9078 }
9079 let end_row =
9080 if selection.end.row > selection.start.row && selection.end.column == 0 {
9081 MultiBufferRow(selection.end.row - 1)
9082 } else {
9083 MultiBufferRow(selection.end.row)
9084 };
9085 last_toggled_row = Some(end_row);
9086
9087 if start_row > end_row {
9088 continue;
9089 }
9090
9091 // If the language has line comments, toggle those.
9092 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
9093
9094 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
9095 if ignore_indent {
9096 full_comment_prefixes = full_comment_prefixes
9097 .into_iter()
9098 .map(|s| Arc::from(s.trim_end()))
9099 .collect();
9100 }
9101
9102 if !full_comment_prefixes.is_empty() {
9103 let first_prefix = full_comment_prefixes
9104 .first()
9105 .expect("prefixes is non-empty");
9106 let prefix_trimmed_lengths = full_comment_prefixes
9107 .iter()
9108 .map(|p| p.trim_end_matches(' ').len())
9109 .collect::<SmallVec<[usize; 4]>>();
9110
9111 let mut all_selection_lines_are_comments = true;
9112
9113 for row in start_row.0..=end_row.0 {
9114 let row = MultiBufferRow(row);
9115 if start_row < end_row && snapshot.is_line_blank(row) {
9116 continue;
9117 }
9118
9119 let prefix_range = full_comment_prefixes
9120 .iter()
9121 .zip(prefix_trimmed_lengths.iter().copied())
9122 .map(|(prefix, trimmed_prefix_len)| {
9123 comment_prefix_range(
9124 snapshot.deref(),
9125 row,
9126 &prefix[..trimmed_prefix_len],
9127 &prefix[trimmed_prefix_len..],
9128 ignore_indent,
9129 )
9130 })
9131 .max_by_key(|range| range.end.column - range.start.column)
9132 .expect("prefixes is non-empty");
9133
9134 if prefix_range.is_empty() {
9135 all_selection_lines_are_comments = false;
9136 }
9137
9138 selection_edit_ranges.push(prefix_range);
9139 }
9140
9141 if all_selection_lines_are_comments {
9142 edits.extend(
9143 selection_edit_ranges
9144 .iter()
9145 .cloned()
9146 .map(|range| (range, empty_str.clone())),
9147 );
9148 } else {
9149 let min_column = selection_edit_ranges
9150 .iter()
9151 .map(|range| range.start.column)
9152 .min()
9153 .unwrap_or(0);
9154 edits.extend(selection_edit_ranges.iter().map(|range| {
9155 let position = Point::new(range.start.row, min_column);
9156 (position..position, first_prefix.clone())
9157 }));
9158 }
9159 } else if let Some((full_comment_prefix, comment_suffix)) =
9160 language.block_comment_delimiters()
9161 {
9162 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
9163 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
9164 let prefix_range = comment_prefix_range(
9165 snapshot.deref(),
9166 start_row,
9167 comment_prefix,
9168 comment_prefix_whitespace,
9169 ignore_indent,
9170 );
9171 let suffix_range = comment_suffix_range(
9172 snapshot.deref(),
9173 end_row,
9174 comment_suffix.trim_start_matches(' '),
9175 comment_suffix.starts_with(' '),
9176 );
9177
9178 if prefix_range.is_empty() || suffix_range.is_empty() {
9179 edits.push((
9180 prefix_range.start..prefix_range.start,
9181 full_comment_prefix.clone(),
9182 ));
9183 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
9184 suffixes_inserted.push((end_row, comment_suffix.len()));
9185 } else {
9186 edits.push((prefix_range, empty_str.clone()));
9187 edits.push((suffix_range, empty_str.clone()));
9188 }
9189 } else {
9190 continue;
9191 }
9192 }
9193
9194 drop(snapshot);
9195 this.buffer.update(cx, |buffer, cx| {
9196 buffer.edit(edits, None, cx);
9197 });
9198
9199 // Adjust selections so that they end before any comment suffixes that
9200 // were inserted.
9201 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
9202 let mut selections = this.selections.all::<Point>(cx);
9203 let snapshot = this.buffer.read(cx).read(cx);
9204 for selection in &mut selections {
9205 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9206 match row.cmp(&MultiBufferRow(selection.end.row)) {
9207 Ordering::Less => {
9208 suffixes_inserted.next();
9209 continue;
9210 }
9211 Ordering::Greater => break,
9212 Ordering::Equal => {
9213 if selection.end.column == snapshot.line_len(row) {
9214 if selection.is_empty() {
9215 selection.start.column -= suffix_len as u32;
9216 }
9217 selection.end.column -= suffix_len as u32;
9218 }
9219 break;
9220 }
9221 }
9222 }
9223 }
9224
9225 drop(snapshot);
9226 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
9227
9228 let selections = this.selections.all::<Point>(cx);
9229 let selections_on_single_row = selections.windows(2).all(|selections| {
9230 selections[0].start.row == selections[1].start.row
9231 && selections[0].end.row == selections[1].end.row
9232 && selections[0].start.row == selections[0].end.row
9233 });
9234 let selections_selecting = selections
9235 .iter()
9236 .any(|selection| selection.start != selection.end);
9237 let advance_downwards = action.advance_downwards
9238 && selections_on_single_row
9239 && !selections_selecting
9240 && !matches!(this.mode, EditorMode::SingleLine { .. });
9241
9242 if advance_downwards {
9243 let snapshot = this.buffer.read(cx).snapshot(cx);
9244
9245 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
9246 s.move_cursors_with(|display_snapshot, display_point, _| {
9247 let mut point = display_point.to_point(display_snapshot);
9248 point.row += 1;
9249 point = snapshot.clip_point(point, Bias::Left);
9250 let display_point = point.to_display_point(display_snapshot);
9251 let goal = SelectionGoal::HorizontalPosition(
9252 display_snapshot
9253 .x_for_display_point(display_point, text_layout_details)
9254 .into(),
9255 );
9256 (display_point, goal)
9257 })
9258 });
9259 }
9260 });
9261 }
9262
9263 pub fn select_enclosing_symbol(
9264 &mut self,
9265 _: &SelectEnclosingSymbol,
9266 cx: &mut ViewContext<Self>,
9267 ) {
9268 let buffer = self.buffer.read(cx).snapshot(cx);
9269 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9270
9271 fn update_selection(
9272 selection: &Selection<usize>,
9273 buffer_snap: &MultiBufferSnapshot,
9274 ) -> Option<Selection<usize>> {
9275 let cursor = selection.head();
9276 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9277 for symbol in symbols.iter().rev() {
9278 let start = symbol.range.start.to_offset(buffer_snap);
9279 let end = symbol.range.end.to_offset(buffer_snap);
9280 let new_range = start..end;
9281 if start < selection.start || end > selection.end {
9282 return Some(Selection {
9283 id: selection.id,
9284 start: new_range.start,
9285 end: new_range.end,
9286 goal: SelectionGoal::None,
9287 reversed: selection.reversed,
9288 });
9289 }
9290 }
9291 None
9292 }
9293
9294 let mut selected_larger_symbol = false;
9295 let new_selections = old_selections
9296 .iter()
9297 .map(|selection| match update_selection(selection, &buffer) {
9298 Some(new_selection) => {
9299 if new_selection.range() != selection.range() {
9300 selected_larger_symbol = true;
9301 }
9302 new_selection
9303 }
9304 None => selection.clone(),
9305 })
9306 .collect::<Vec<_>>();
9307
9308 if selected_larger_symbol {
9309 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9310 s.select(new_selections);
9311 });
9312 }
9313 }
9314
9315 pub fn select_larger_syntax_node(
9316 &mut self,
9317 _: &SelectLargerSyntaxNode,
9318 cx: &mut ViewContext<Self>,
9319 ) {
9320 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9321 let buffer = self.buffer.read(cx).snapshot(cx);
9322 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9323
9324 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9325 let mut selected_larger_node = false;
9326 let new_selections = old_selections
9327 .iter()
9328 .map(|selection| {
9329 let old_range = selection.start..selection.end;
9330 let mut new_range = old_range.clone();
9331 while let Some(containing_range) =
9332 buffer.range_for_syntax_ancestor(new_range.clone())
9333 {
9334 new_range = containing_range;
9335 if !display_map.intersects_fold(new_range.start)
9336 && !display_map.intersects_fold(new_range.end)
9337 {
9338 break;
9339 }
9340 }
9341
9342 selected_larger_node |= new_range != old_range;
9343 Selection {
9344 id: selection.id,
9345 start: new_range.start,
9346 end: new_range.end,
9347 goal: SelectionGoal::None,
9348 reversed: selection.reversed,
9349 }
9350 })
9351 .collect::<Vec<_>>();
9352
9353 if selected_larger_node {
9354 stack.push(old_selections);
9355 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9356 s.select(new_selections);
9357 });
9358 }
9359 self.select_larger_syntax_node_stack = stack;
9360 }
9361
9362 pub fn select_smaller_syntax_node(
9363 &mut self,
9364 _: &SelectSmallerSyntaxNode,
9365 cx: &mut ViewContext<Self>,
9366 ) {
9367 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9368 if let Some(selections) = stack.pop() {
9369 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9370 s.select(selections.to_vec());
9371 });
9372 }
9373 self.select_larger_syntax_node_stack = stack;
9374 }
9375
9376 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9377 if !EditorSettings::get_global(cx).gutter.runnables {
9378 self.clear_tasks();
9379 return Task::ready(());
9380 }
9381 let project = self.project.as_ref().map(Model::downgrade);
9382 cx.spawn(|this, mut cx| async move {
9383 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
9384 let Some(project) = project.and_then(|p| p.upgrade()) else {
9385 return;
9386 };
9387 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9388 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9389 }) else {
9390 return;
9391 };
9392
9393 let hide_runnables = project
9394 .update(&mut cx, |project, cx| {
9395 // Do not display any test indicators in non-dev server remote projects.
9396 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9397 })
9398 .unwrap_or(true);
9399 if hide_runnables {
9400 return;
9401 }
9402 let new_rows =
9403 cx.background_executor()
9404 .spawn({
9405 let snapshot = display_snapshot.clone();
9406 async move {
9407 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9408 }
9409 })
9410 .await;
9411 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9412
9413 this.update(&mut cx, |this, _| {
9414 this.clear_tasks();
9415 for (key, value) in rows {
9416 this.insert_tasks(key, value);
9417 }
9418 })
9419 .ok();
9420 })
9421 }
9422 fn fetch_runnable_ranges(
9423 snapshot: &DisplaySnapshot,
9424 range: Range<Anchor>,
9425 ) -> Vec<language::RunnableRange> {
9426 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9427 }
9428
9429 fn runnable_rows(
9430 project: Model<Project>,
9431 snapshot: DisplaySnapshot,
9432 runnable_ranges: Vec<RunnableRange>,
9433 mut cx: AsyncWindowContext,
9434 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9435 runnable_ranges
9436 .into_iter()
9437 .filter_map(|mut runnable| {
9438 let tasks = cx
9439 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9440 .ok()?;
9441 if tasks.is_empty() {
9442 return None;
9443 }
9444
9445 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9446
9447 let row = snapshot
9448 .buffer_snapshot
9449 .buffer_line_for_row(MultiBufferRow(point.row))?
9450 .1
9451 .start
9452 .row;
9453
9454 let context_range =
9455 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9456 Some((
9457 (runnable.buffer_id, row),
9458 RunnableTasks {
9459 templates: tasks,
9460 offset: MultiBufferOffset(runnable.run_range.start),
9461 context_range,
9462 column: point.column,
9463 extra_variables: runnable.extra_captures,
9464 },
9465 ))
9466 })
9467 .collect()
9468 }
9469
9470 fn templates_with_tags(
9471 project: &Model<Project>,
9472 runnable: &mut Runnable,
9473 cx: &WindowContext<'_>,
9474 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9475 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9476 let (worktree_id, file) = project
9477 .buffer_for_id(runnable.buffer, cx)
9478 .and_then(|buffer| buffer.read(cx).file())
9479 .map(|file| (file.worktree_id(cx), file.clone()))
9480 .unzip();
9481
9482 (
9483 project.task_store().read(cx).task_inventory().cloned(),
9484 worktree_id,
9485 file,
9486 )
9487 });
9488
9489 let tags = mem::take(&mut runnable.tags);
9490 let mut tags: Vec<_> = tags
9491 .into_iter()
9492 .flat_map(|tag| {
9493 let tag = tag.0.clone();
9494 inventory
9495 .as_ref()
9496 .into_iter()
9497 .flat_map(|inventory| {
9498 inventory.read(cx).list_tasks(
9499 file.clone(),
9500 Some(runnable.language.clone()),
9501 worktree_id,
9502 cx,
9503 )
9504 })
9505 .filter(move |(_, template)| {
9506 template.tags.iter().any(|source_tag| source_tag == &tag)
9507 })
9508 })
9509 .sorted_by_key(|(kind, _)| kind.to_owned())
9510 .collect();
9511 if let Some((leading_tag_source, _)) = tags.first() {
9512 // Strongest source wins; if we have worktree tag binding, prefer that to
9513 // global and language bindings;
9514 // if we have a global binding, prefer that to language binding.
9515 let first_mismatch = tags
9516 .iter()
9517 .position(|(tag_source, _)| tag_source != leading_tag_source);
9518 if let Some(index) = first_mismatch {
9519 tags.truncate(index);
9520 }
9521 }
9522
9523 tags
9524 }
9525
9526 pub fn move_to_enclosing_bracket(
9527 &mut self,
9528 _: &MoveToEnclosingBracket,
9529 cx: &mut ViewContext<Self>,
9530 ) {
9531 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9532 s.move_offsets_with(|snapshot, selection| {
9533 let Some(enclosing_bracket_ranges) =
9534 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9535 else {
9536 return;
9537 };
9538
9539 let mut best_length = usize::MAX;
9540 let mut best_inside = false;
9541 let mut best_in_bracket_range = false;
9542 let mut best_destination = None;
9543 for (open, close) in enclosing_bracket_ranges {
9544 let close = close.to_inclusive();
9545 let length = close.end() - open.start;
9546 let inside = selection.start >= open.end && selection.end <= *close.start();
9547 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9548 || close.contains(&selection.head());
9549
9550 // If best is next to a bracket and current isn't, skip
9551 if !in_bracket_range && best_in_bracket_range {
9552 continue;
9553 }
9554
9555 // Prefer smaller lengths unless best is inside and current isn't
9556 if length > best_length && (best_inside || !inside) {
9557 continue;
9558 }
9559
9560 best_length = length;
9561 best_inside = inside;
9562 best_in_bracket_range = in_bracket_range;
9563 best_destination = Some(
9564 if close.contains(&selection.start) && close.contains(&selection.end) {
9565 if inside {
9566 open.end
9567 } else {
9568 open.start
9569 }
9570 } else if inside {
9571 *close.start()
9572 } else {
9573 *close.end()
9574 },
9575 );
9576 }
9577
9578 if let Some(destination) = best_destination {
9579 selection.collapse_to(destination, SelectionGoal::None);
9580 }
9581 })
9582 });
9583 }
9584
9585 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9586 self.end_selection(cx);
9587 self.selection_history.mode = SelectionHistoryMode::Undoing;
9588 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9589 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9590 self.select_next_state = entry.select_next_state;
9591 self.select_prev_state = entry.select_prev_state;
9592 self.add_selections_state = entry.add_selections_state;
9593 self.request_autoscroll(Autoscroll::newest(), cx);
9594 }
9595 self.selection_history.mode = SelectionHistoryMode::Normal;
9596 }
9597
9598 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9599 self.end_selection(cx);
9600 self.selection_history.mode = SelectionHistoryMode::Redoing;
9601 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9602 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9603 self.select_next_state = entry.select_next_state;
9604 self.select_prev_state = entry.select_prev_state;
9605 self.add_selections_state = entry.add_selections_state;
9606 self.request_autoscroll(Autoscroll::newest(), cx);
9607 }
9608 self.selection_history.mode = SelectionHistoryMode::Normal;
9609 }
9610
9611 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9612 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9613 }
9614
9615 pub fn expand_excerpts_down(
9616 &mut self,
9617 action: &ExpandExcerptsDown,
9618 cx: &mut ViewContext<Self>,
9619 ) {
9620 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9621 }
9622
9623 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9624 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9625 }
9626
9627 pub fn expand_excerpts_for_direction(
9628 &mut self,
9629 lines: u32,
9630 direction: ExpandExcerptDirection,
9631 cx: &mut ViewContext<Self>,
9632 ) {
9633 let selections = self.selections.disjoint_anchors();
9634
9635 let lines = if lines == 0 {
9636 EditorSettings::get_global(cx).expand_excerpt_lines
9637 } else {
9638 lines
9639 };
9640
9641 self.buffer.update(cx, |buffer, cx| {
9642 buffer.expand_excerpts(
9643 selections
9644 .iter()
9645 .map(|selection| selection.head().excerpt_id)
9646 .dedup(),
9647 lines,
9648 direction,
9649 cx,
9650 )
9651 })
9652 }
9653
9654 pub fn expand_excerpt(
9655 &mut self,
9656 excerpt: ExcerptId,
9657 direction: ExpandExcerptDirection,
9658 cx: &mut ViewContext<Self>,
9659 ) {
9660 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9661 self.buffer.update(cx, |buffer, cx| {
9662 buffer.expand_excerpts([excerpt], lines, direction, cx)
9663 })
9664 }
9665
9666 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9667 self.go_to_diagnostic_impl(Direction::Next, cx)
9668 }
9669
9670 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9671 self.go_to_diagnostic_impl(Direction::Prev, cx)
9672 }
9673
9674 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9675 let buffer = self.buffer.read(cx).snapshot(cx);
9676 let selection = self.selections.newest::<usize>(cx);
9677
9678 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9679 if direction == Direction::Next {
9680 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9681 let (group_id, jump_to) = popover.activation_info();
9682 if self.activate_diagnostics(group_id, cx) {
9683 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9684 let mut new_selection = s.newest_anchor().clone();
9685 new_selection.collapse_to(jump_to, SelectionGoal::None);
9686 s.select_anchors(vec![new_selection.clone()]);
9687 });
9688 }
9689 return;
9690 }
9691 }
9692
9693 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9694 active_diagnostics
9695 .primary_range
9696 .to_offset(&buffer)
9697 .to_inclusive()
9698 });
9699 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9700 if active_primary_range.contains(&selection.head()) {
9701 *active_primary_range.start()
9702 } else {
9703 selection.head()
9704 }
9705 } else {
9706 selection.head()
9707 };
9708 let snapshot = self.snapshot(cx);
9709 loop {
9710 let diagnostics = if direction == Direction::Prev {
9711 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9712 } else {
9713 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9714 }
9715 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9716 let group = diagnostics
9717 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9718 // be sorted in a stable way
9719 // skip until we are at current active diagnostic, if it exists
9720 .skip_while(|entry| {
9721 (match direction {
9722 Direction::Prev => entry.range.start >= search_start,
9723 Direction::Next => entry.range.start <= search_start,
9724 }) && self
9725 .active_diagnostics
9726 .as_ref()
9727 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9728 })
9729 .find_map(|entry| {
9730 if entry.diagnostic.is_primary
9731 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9732 && !entry.range.is_empty()
9733 // if we match with the active diagnostic, skip it
9734 && Some(entry.diagnostic.group_id)
9735 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9736 {
9737 Some((entry.range, entry.diagnostic.group_id))
9738 } else {
9739 None
9740 }
9741 });
9742
9743 if let Some((primary_range, group_id)) = group {
9744 if self.activate_diagnostics(group_id, cx) {
9745 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9746 s.select(vec![Selection {
9747 id: selection.id,
9748 start: primary_range.start,
9749 end: primary_range.start,
9750 reversed: false,
9751 goal: SelectionGoal::None,
9752 }]);
9753 });
9754 }
9755 break;
9756 } else {
9757 // Cycle around to the start of the buffer, potentially moving back to the start of
9758 // the currently active diagnostic.
9759 active_primary_range.take();
9760 if direction == Direction::Prev {
9761 if search_start == buffer.len() {
9762 break;
9763 } else {
9764 search_start = buffer.len();
9765 }
9766 } else if search_start == 0 {
9767 break;
9768 } else {
9769 search_start = 0;
9770 }
9771 }
9772 }
9773 }
9774
9775 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9776 let snapshot = self.snapshot(cx);
9777 let selection = self.selections.newest::<Point>(cx);
9778 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9779 }
9780
9781 fn go_to_hunk_after_position(
9782 &mut self,
9783 snapshot: &EditorSnapshot,
9784 position: Point,
9785 cx: &mut ViewContext<'_, Editor>,
9786 ) -> Option<MultiBufferDiffHunk> {
9787 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9788 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9789 snapshot,
9790 position,
9791 ix > 0,
9792 snapshot.diff_map.diff_hunks_in_range(
9793 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9794 &snapshot.buffer_snapshot,
9795 ),
9796 cx,
9797 ) {
9798 return Some(hunk);
9799 }
9800 }
9801 None
9802 }
9803
9804 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9805 let snapshot = self.snapshot(cx);
9806 let selection = self.selections.newest::<Point>(cx);
9807 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9808 }
9809
9810 fn go_to_hunk_before_position(
9811 &mut self,
9812 snapshot: &EditorSnapshot,
9813 position: Point,
9814 cx: &mut ViewContext<'_, Editor>,
9815 ) -> Option<MultiBufferDiffHunk> {
9816 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9817 .into_iter()
9818 .enumerate()
9819 {
9820 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9821 snapshot,
9822 position,
9823 ix > 0,
9824 snapshot
9825 .diff_map
9826 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9827 cx,
9828 ) {
9829 return Some(hunk);
9830 }
9831 }
9832 None
9833 }
9834
9835 fn go_to_next_hunk_in_direction(
9836 &mut self,
9837 snapshot: &DisplaySnapshot,
9838 initial_point: Point,
9839 is_wrapped: bool,
9840 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9841 cx: &mut ViewContext<Editor>,
9842 ) -> Option<MultiBufferDiffHunk> {
9843 let display_point = initial_point.to_display_point(snapshot);
9844 let mut hunks = hunks
9845 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9846 .filter(|(display_hunk, _)| {
9847 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9848 })
9849 .dedup();
9850
9851 if let Some((display_hunk, hunk)) = hunks.next() {
9852 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9853 let row = display_hunk.start_display_row();
9854 let point = DisplayPoint::new(row, 0);
9855 s.select_display_ranges([point..point]);
9856 });
9857
9858 Some(hunk)
9859 } else {
9860 None
9861 }
9862 }
9863
9864 pub fn go_to_definition(
9865 &mut self,
9866 _: &GoToDefinition,
9867 cx: &mut ViewContext<Self>,
9868 ) -> Task<Result<Navigated>> {
9869 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9870 cx.spawn(|editor, mut cx| async move {
9871 if definition.await? == Navigated::Yes {
9872 return Ok(Navigated::Yes);
9873 }
9874 match editor.update(&mut cx, |editor, cx| {
9875 editor.find_all_references(&FindAllReferences, cx)
9876 })? {
9877 Some(references) => references.await,
9878 None => Ok(Navigated::No),
9879 }
9880 })
9881 }
9882
9883 pub fn go_to_declaration(
9884 &mut self,
9885 _: &GoToDeclaration,
9886 cx: &mut ViewContext<Self>,
9887 ) -> Task<Result<Navigated>> {
9888 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9889 }
9890
9891 pub fn go_to_declaration_split(
9892 &mut self,
9893 _: &GoToDeclaration,
9894 cx: &mut ViewContext<Self>,
9895 ) -> Task<Result<Navigated>> {
9896 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9897 }
9898
9899 pub fn go_to_implementation(
9900 &mut self,
9901 _: &GoToImplementation,
9902 cx: &mut ViewContext<Self>,
9903 ) -> Task<Result<Navigated>> {
9904 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9905 }
9906
9907 pub fn go_to_implementation_split(
9908 &mut self,
9909 _: &GoToImplementationSplit,
9910 cx: &mut ViewContext<Self>,
9911 ) -> Task<Result<Navigated>> {
9912 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9913 }
9914
9915 pub fn go_to_type_definition(
9916 &mut self,
9917 _: &GoToTypeDefinition,
9918 cx: &mut ViewContext<Self>,
9919 ) -> Task<Result<Navigated>> {
9920 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9921 }
9922
9923 pub fn go_to_definition_split(
9924 &mut self,
9925 _: &GoToDefinitionSplit,
9926 cx: &mut ViewContext<Self>,
9927 ) -> Task<Result<Navigated>> {
9928 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9929 }
9930
9931 pub fn go_to_type_definition_split(
9932 &mut self,
9933 _: &GoToTypeDefinitionSplit,
9934 cx: &mut ViewContext<Self>,
9935 ) -> Task<Result<Navigated>> {
9936 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9937 }
9938
9939 fn go_to_definition_of_kind(
9940 &mut self,
9941 kind: GotoDefinitionKind,
9942 split: bool,
9943 cx: &mut ViewContext<Self>,
9944 ) -> Task<Result<Navigated>> {
9945 let Some(provider) = self.semantics_provider.clone() else {
9946 return Task::ready(Ok(Navigated::No));
9947 };
9948 let head = self.selections.newest::<usize>(cx).head();
9949 let buffer = self.buffer.read(cx);
9950 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9951 text_anchor
9952 } else {
9953 return Task::ready(Ok(Navigated::No));
9954 };
9955
9956 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9957 return Task::ready(Ok(Navigated::No));
9958 };
9959
9960 cx.spawn(|editor, mut cx| async move {
9961 let definitions = definitions.await?;
9962 let navigated = editor
9963 .update(&mut cx, |editor, cx| {
9964 editor.navigate_to_hover_links(
9965 Some(kind),
9966 definitions
9967 .into_iter()
9968 .filter(|location| {
9969 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9970 })
9971 .map(HoverLink::Text)
9972 .collect::<Vec<_>>(),
9973 split,
9974 cx,
9975 )
9976 })?
9977 .await?;
9978 anyhow::Ok(navigated)
9979 })
9980 }
9981
9982 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9983 let position = self.selections.newest_anchor().head();
9984 let Some((buffer, buffer_position)) =
9985 self.buffer.read(cx).text_anchor_for_position(position, cx)
9986 else {
9987 return;
9988 };
9989
9990 cx.spawn(|editor, mut cx| async move {
9991 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9992 editor.update(&mut cx, |_, cx| {
9993 cx.open_url(&url);
9994 })
9995 } else {
9996 Ok(())
9997 }
9998 })
9999 .detach();
10000 }
10001
10002 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
10003 let Some(workspace) = self.workspace() else {
10004 return;
10005 };
10006
10007 let position = self.selections.newest_anchor().head();
10008
10009 let Some((buffer, buffer_position)) =
10010 self.buffer.read(cx).text_anchor_for_position(position, cx)
10011 else {
10012 return;
10013 };
10014
10015 let project = self.project.clone();
10016
10017 cx.spawn(|_, mut cx| async move {
10018 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
10019
10020 if let Some((_, path)) = result {
10021 workspace
10022 .update(&mut cx, |workspace, cx| {
10023 workspace.open_resolved_path(path, cx)
10024 })?
10025 .await?;
10026 }
10027 anyhow::Ok(())
10028 })
10029 .detach();
10030 }
10031
10032 pub(crate) fn navigate_to_hover_links(
10033 &mut self,
10034 kind: Option<GotoDefinitionKind>,
10035 mut definitions: Vec<HoverLink>,
10036 split: bool,
10037 cx: &mut ViewContext<Editor>,
10038 ) -> Task<Result<Navigated>> {
10039 // If there is one definition, just open it directly
10040 if definitions.len() == 1 {
10041 let definition = definitions.pop().unwrap();
10042
10043 enum TargetTaskResult {
10044 Location(Option<Location>),
10045 AlreadyNavigated,
10046 }
10047
10048 let target_task = match definition {
10049 HoverLink::Text(link) => {
10050 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
10051 }
10052 HoverLink::InlayHint(lsp_location, server_id) => {
10053 let computation = self.compute_target_location(lsp_location, server_id, cx);
10054 cx.background_executor().spawn(async move {
10055 let location = computation.await?;
10056 Ok(TargetTaskResult::Location(location))
10057 })
10058 }
10059 HoverLink::Url(url) => {
10060 cx.open_url(&url);
10061 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
10062 }
10063 HoverLink::File(path) => {
10064 if let Some(workspace) = self.workspace() {
10065 cx.spawn(|_, mut cx| async move {
10066 workspace
10067 .update(&mut cx, |workspace, cx| {
10068 workspace.open_resolved_path(path, cx)
10069 })?
10070 .await
10071 .map(|_| TargetTaskResult::AlreadyNavigated)
10072 })
10073 } else {
10074 Task::ready(Ok(TargetTaskResult::Location(None)))
10075 }
10076 }
10077 };
10078 cx.spawn(|editor, mut cx| async move {
10079 let target = match target_task.await.context("target resolution task")? {
10080 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
10081 TargetTaskResult::Location(None) => return Ok(Navigated::No),
10082 TargetTaskResult::Location(Some(target)) => target,
10083 };
10084
10085 editor.update(&mut cx, |editor, cx| {
10086 let Some(workspace) = editor.workspace() else {
10087 return Navigated::No;
10088 };
10089 let pane = workspace.read(cx).active_pane().clone();
10090
10091 let range = target.range.to_offset(target.buffer.read(cx));
10092 let range = editor.range_for_match(&range);
10093
10094 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
10095 let buffer = target.buffer.read(cx);
10096 let range = check_multiline_range(buffer, range);
10097 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10098 s.select_ranges([range]);
10099 });
10100 } else {
10101 cx.window_context().defer(move |cx| {
10102 let target_editor: View<Self> =
10103 workspace.update(cx, |workspace, cx| {
10104 let pane = if split {
10105 workspace.adjacent_pane(cx)
10106 } else {
10107 workspace.active_pane().clone()
10108 };
10109
10110 workspace.open_project_item(
10111 pane,
10112 target.buffer.clone(),
10113 true,
10114 true,
10115 cx,
10116 )
10117 });
10118 target_editor.update(cx, |target_editor, cx| {
10119 // When selecting a definition in a different buffer, disable the nav history
10120 // to avoid creating a history entry at the previous cursor location.
10121 pane.update(cx, |pane, _| pane.disable_history());
10122 let buffer = target.buffer.read(cx);
10123 let range = check_multiline_range(buffer, range);
10124 target_editor.change_selections(
10125 Some(Autoscroll::focused()),
10126 cx,
10127 |s| {
10128 s.select_ranges([range]);
10129 },
10130 );
10131 pane.update(cx, |pane, _| pane.enable_history());
10132 });
10133 });
10134 }
10135 Navigated::Yes
10136 })
10137 })
10138 } else if !definitions.is_empty() {
10139 cx.spawn(|editor, mut cx| async move {
10140 let (title, location_tasks, workspace) = editor
10141 .update(&mut cx, |editor, cx| {
10142 let tab_kind = match kind {
10143 Some(GotoDefinitionKind::Implementation) => "Implementations",
10144 _ => "Definitions",
10145 };
10146 let title = definitions
10147 .iter()
10148 .find_map(|definition| match definition {
10149 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
10150 let buffer = origin.buffer.read(cx);
10151 format!(
10152 "{} for {}",
10153 tab_kind,
10154 buffer
10155 .text_for_range(origin.range.clone())
10156 .collect::<String>()
10157 )
10158 }),
10159 HoverLink::InlayHint(_, _) => None,
10160 HoverLink::Url(_) => None,
10161 HoverLink::File(_) => None,
10162 })
10163 .unwrap_or(tab_kind.to_string());
10164 let location_tasks = definitions
10165 .into_iter()
10166 .map(|definition| match definition {
10167 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
10168 HoverLink::InlayHint(lsp_location, server_id) => {
10169 editor.compute_target_location(lsp_location, server_id, cx)
10170 }
10171 HoverLink::Url(_) => Task::ready(Ok(None)),
10172 HoverLink::File(_) => Task::ready(Ok(None)),
10173 })
10174 .collect::<Vec<_>>();
10175 (title, location_tasks, editor.workspace().clone())
10176 })
10177 .context("location tasks preparation")?;
10178
10179 let locations = future::join_all(location_tasks)
10180 .await
10181 .into_iter()
10182 .filter_map(|location| location.transpose())
10183 .collect::<Result<_>>()
10184 .context("location tasks")?;
10185
10186 let Some(workspace) = workspace else {
10187 return Ok(Navigated::No);
10188 };
10189 let opened = workspace
10190 .update(&mut cx, |workspace, cx| {
10191 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
10192 })
10193 .ok();
10194
10195 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10196 })
10197 } else {
10198 Task::ready(Ok(Navigated::No))
10199 }
10200 }
10201
10202 fn compute_target_location(
10203 &self,
10204 lsp_location: lsp::Location,
10205 server_id: LanguageServerId,
10206 cx: &mut ViewContext<Self>,
10207 ) -> Task<anyhow::Result<Option<Location>>> {
10208 let Some(project) = self.project.clone() else {
10209 return Task::Ready(Some(Ok(None)));
10210 };
10211
10212 cx.spawn(move |editor, mut cx| async move {
10213 let location_task = editor.update(&mut cx, |_, cx| {
10214 project.update(cx, |project, cx| {
10215 let language_server_name = project
10216 .language_server_statuses(cx)
10217 .find(|(id, _)| server_id == *id)
10218 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10219 language_server_name.map(|language_server_name| {
10220 project.open_local_buffer_via_lsp(
10221 lsp_location.uri.clone(),
10222 server_id,
10223 language_server_name,
10224 cx,
10225 )
10226 })
10227 })
10228 })?;
10229 let location = match location_task {
10230 Some(task) => Some({
10231 let target_buffer_handle = task.await.context("open local buffer")?;
10232 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
10233 let target_start = target_buffer
10234 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
10235 let target_end = target_buffer
10236 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
10237 target_buffer.anchor_after(target_start)
10238 ..target_buffer.anchor_before(target_end)
10239 })?;
10240 Location {
10241 buffer: target_buffer_handle,
10242 range,
10243 }
10244 }),
10245 None => None,
10246 };
10247 Ok(location)
10248 })
10249 }
10250
10251 pub fn find_all_references(
10252 &mut self,
10253 _: &FindAllReferences,
10254 cx: &mut ViewContext<Self>,
10255 ) -> Option<Task<Result<Navigated>>> {
10256 let selection = self.selections.newest::<usize>(cx);
10257 let multi_buffer = self.buffer.read(cx);
10258 let head = selection.head();
10259
10260 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
10261 let head_anchor = multi_buffer_snapshot.anchor_at(
10262 head,
10263 if head < selection.tail() {
10264 Bias::Right
10265 } else {
10266 Bias::Left
10267 },
10268 );
10269
10270 match self
10271 .find_all_references_task_sources
10272 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
10273 {
10274 Ok(_) => {
10275 log::info!(
10276 "Ignoring repeated FindAllReferences invocation with the position of already running task"
10277 );
10278 return None;
10279 }
10280 Err(i) => {
10281 self.find_all_references_task_sources.insert(i, head_anchor);
10282 }
10283 }
10284
10285 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
10286 let workspace = self.workspace()?;
10287 let project = workspace.read(cx).project().clone();
10288 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
10289 Some(cx.spawn(|editor, mut cx| async move {
10290 let _cleanup = defer({
10291 let mut cx = cx.clone();
10292 move || {
10293 let _ = editor.update(&mut cx, |editor, _| {
10294 if let Ok(i) =
10295 editor
10296 .find_all_references_task_sources
10297 .binary_search_by(|anchor| {
10298 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
10299 })
10300 {
10301 editor.find_all_references_task_sources.remove(i);
10302 }
10303 });
10304 }
10305 });
10306
10307 let locations = references.await?;
10308 if locations.is_empty() {
10309 return anyhow::Ok(Navigated::No);
10310 }
10311
10312 workspace.update(&mut cx, |workspace, cx| {
10313 let title = locations
10314 .first()
10315 .as_ref()
10316 .map(|location| {
10317 let buffer = location.buffer.read(cx);
10318 format!(
10319 "References to `{}`",
10320 buffer
10321 .text_for_range(location.range.clone())
10322 .collect::<String>()
10323 )
10324 })
10325 .unwrap();
10326 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10327 Navigated::Yes
10328 })
10329 }))
10330 }
10331
10332 /// Opens a multibuffer with the given project locations in it
10333 pub fn open_locations_in_multibuffer(
10334 workspace: &mut Workspace,
10335 mut locations: Vec<Location>,
10336 title: String,
10337 split: bool,
10338 cx: &mut ViewContext<Workspace>,
10339 ) {
10340 // If there are multiple definitions, open them in a multibuffer
10341 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10342 let mut locations = locations.into_iter().peekable();
10343 let mut ranges_to_highlight = Vec::new();
10344 let capability = workspace.project().read(cx).capability();
10345
10346 let excerpt_buffer = cx.new_model(|cx| {
10347 let mut multibuffer = MultiBuffer::new(capability);
10348 while let Some(location) = locations.next() {
10349 let buffer = location.buffer.read(cx);
10350 let mut ranges_for_buffer = Vec::new();
10351 let range = location.range.to_offset(buffer);
10352 ranges_for_buffer.push(range.clone());
10353
10354 while let Some(next_location) = locations.peek() {
10355 if next_location.buffer == location.buffer {
10356 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10357 locations.next();
10358 } else {
10359 break;
10360 }
10361 }
10362
10363 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10364 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10365 location.buffer.clone(),
10366 ranges_for_buffer,
10367 DEFAULT_MULTIBUFFER_CONTEXT,
10368 cx,
10369 ))
10370 }
10371
10372 multibuffer.with_title(title)
10373 });
10374
10375 let editor = cx.new_view(|cx| {
10376 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10377 });
10378 editor.update(cx, |editor, cx| {
10379 if let Some(first_range) = ranges_to_highlight.first() {
10380 editor.change_selections(None, cx, |selections| {
10381 selections.clear_disjoint();
10382 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10383 });
10384 }
10385 editor.highlight_background::<Self>(
10386 &ranges_to_highlight,
10387 |theme| theme.editor_highlighted_line_background,
10388 cx,
10389 );
10390 });
10391
10392 let item = Box::new(editor);
10393 let item_id = item.item_id();
10394
10395 if split {
10396 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10397 } else {
10398 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10399 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10400 pane.close_current_preview_item(cx)
10401 } else {
10402 None
10403 }
10404 });
10405 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10406 }
10407 workspace.active_pane().update(cx, |pane, cx| {
10408 pane.set_preview_item_id(Some(item_id), cx);
10409 });
10410 }
10411
10412 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10413 use language::ToOffset as _;
10414
10415 let provider = self.semantics_provider.clone()?;
10416 let selection = self.selections.newest_anchor().clone();
10417 let (cursor_buffer, cursor_buffer_position) = self
10418 .buffer
10419 .read(cx)
10420 .text_anchor_for_position(selection.head(), cx)?;
10421 let (tail_buffer, cursor_buffer_position_end) = self
10422 .buffer
10423 .read(cx)
10424 .text_anchor_for_position(selection.tail(), cx)?;
10425 if tail_buffer != cursor_buffer {
10426 return None;
10427 }
10428
10429 let snapshot = cursor_buffer.read(cx).snapshot();
10430 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10431 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10432 let prepare_rename = provider
10433 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10434 .unwrap_or_else(|| Task::ready(Ok(None)));
10435 drop(snapshot);
10436
10437 Some(cx.spawn(|this, mut cx| async move {
10438 let rename_range = if let Some(range) = prepare_rename.await? {
10439 Some(range)
10440 } else {
10441 this.update(&mut cx, |this, cx| {
10442 let buffer = this.buffer.read(cx).snapshot(cx);
10443 let mut buffer_highlights = this
10444 .document_highlights_for_position(selection.head(), &buffer)
10445 .filter(|highlight| {
10446 highlight.start.excerpt_id == selection.head().excerpt_id
10447 && highlight.end.excerpt_id == selection.head().excerpt_id
10448 });
10449 buffer_highlights
10450 .next()
10451 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10452 })?
10453 };
10454 if let Some(rename_range) = rename_range {
10455 this.update(&mut cx, |this, cx| {
10456 let snapshot = cursor_buffer.read(cx).snapshot();
10457 let rename_buffer_range = rename_range.to_offset(&snapshot);
10458 let cursor_offset_in_rename_range =
10459 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10460 let cursor_offset_in_rename_range_end =
10461 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10462
10463 this.take_rename(false, cx);
10464 let buffer = this.buffer.read(cx).read(cx);
10465 let cursor_offset = selection.head().to_offset(&buffer);
10466 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10467 let rename_end = rename_start + rename_buffer_range.len();
10468 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10469 let mut old_highlight_id = None;
10470 let old_name: Arc<str> = buffer
10471 .chunks(rename_start..rename_end, true)
10472 .map(|chunk| {
10473 if old_highlight_id.is_none() {
10474 old_highlight_id = chunk.syntax_highlight_id;
10475 }
10476 chunk.text
10477 })
10478 .collect::<String>()
10479 .into();
10480
10481 drop(buffer);
10482
10483 // Position the selection in the rename editor so that it matches the current selection.
10484 this.show_local_selections = false;
10485 let rename_editor = cx.new_view(|cx| {
10486 let mut editor = Editor::single_line(cx);
10487 editor.buffer.update(cx, |buffer, cx| {
10488 buffer.edit([(0..0, old_name.clone())], None, cx)
10489 });
10490 let rename_selection_range = match cursor_offset_in_rename_range
10491 .cmp(&cursor_offset_in_rename_range_end)
10492 {
10493 Ordering::Equal => {
10494 editor.select_all(&SelectAll, cx);
10495 return editor;
10496 }
10497 Ordering::Less => {
10498 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10499 }
10500 Ordering::Greater => {
10501 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10502 }
10503 };
10504 if rename_selection_range.end > old_name.len() {
10505 editor.select_all(&SelectAll, cx);
10506 } else {
10507 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10508 s.select_ranges([rename_selection_range]);
10509 });
10510 }
10511 editor
10512 });
10513 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10514 if e == &EditorEvent::Focused {
10515 cx.emit(EditorEvent::FocusedIn)
10516 }
10517 })
10518 .detach();
10519
10520 let write_highlights =
10521 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10522 let read_highlights =
10523 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10524 let ranges = write_highlights
10525 .iter()
10526 .flat_map(|(_, ranges)| ranges.iter())
10527 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10528 .cloned()
10529 .collect();
10530
10531 this.highlight_text::<Rename>(
10532 ranges,
10533 HighlightStyle {
10534 fade_out: Some(0.6),
10535 ..Default::default()
10536 },
10537 cx,
10538 );
10539 let rename_focus_handle = rename_editor.focus_handle(cx);
10540 cx.focus(&rename_focus_handle);
10541 let block_id = this.insert_blocks(
10542 [BlockProperties {
10543 style: BlockStyle::Flex,
10544 placement: BlockPlacement::Below(range.start),
10545 height: 1,
10546 render: Arc::new({
10547 let rename_editor = rename_editor.clone();
10548 move |cx: &mut BlockContext| {
10549 let mut text_style = cx.editor_style.text.clone();
10550 if let Some(highlight_style) = old_highlight_id
10551 .and_then(|h| h.style(&cx.editor_style.syntax))
10552 {
10553 text_style = text_style.highlight(highlight_style);
10554 }
10555 div()
10556 .block_mouse_down()
10557 .pl(cx.anchor_x)
10558 .child(EditorElement::new(
10559 &rename_editor,
10560 EditorStyle {
10561 background: cx.theme().system().transparent,
10562 local_player: cx.editor_style.local_player,
10563 text: text_style,
10564 scrollbar_width: cx.editor_style.scrollbar_width,
10565 syntax: cx.editor_style.syntax.clone(),
10566 status: cx.editor_style.status.clone(),
10567 inlay_hints_style: HighlightStyle {
10568 font_weight: Some(FontWeight::BOLD),
10569 ..make_inlay_hints_style(cx)
10570 },
10571 suggestions_style: HighlightStyle {
10572 color: Some(cx.theme().status().predictive),
10573 ..HighlightStyle::default()
10574 },
10575 ..EditorStyle::default()
10576 },
10577 ))
10578 .into_any_element()
10579 }
10580 }),
10581 priority: 0,
10582 }],
10583 Some(Autoscroll::fit()),
10584 cx,
10585 )[0];
10586 this.pending_rename = Some(RenameState {
10587 range,
10588 old_name,
10589 editor: rename_editor,
10590 block_id,
10591 });
10592 })?;
10593 }
10594
10595 Ok(())
10596 }))
10597 }
10598
10599 pub fn confirm_rename(
10600 &mut self,
10601 _: &ConfirmRename,
10602 cx: &mut ViewContext<Self>,
10603 ) -> Option<Task<Result<()>>> {
10604 let rename = self.take_rename(false, cx)?;
10605 let workspace = self.workspace()?.downgrade();
10606 let (buffer, start) = self
10607 .buffer
10608 .read(cx)
10609 .text_anchor_for_position(rename.range.start, cx)?;
10610 let (end_buffer, _) = self
10611 .buffer
10612 .read(cx)
10613 .text_anchor_for_position(rename.range.end, cx)?;
10614 if buffer != end_buffer {
10615 return None;
10616 }
10617
10618 let old_name = rename.old_name;
10619 let new_name = rename.editor.read(cx).text(cx);
10620
10621 let rename = self.semantics_provider.as_ref()?.perform_rename(
10622 &buffer,
10623 start,
10624 new_name.clone(),
10625 cx,
10626 )?;
10627
10628 Some(cx.spawn(|editor, mut cx| async move {
10629 let project_transaction = rename.await?;
10630 Self::open_project_transaction(
10631 &editor,
10632 workspace,
10633 project_transaction,
10634 format!("Rename: {} → {}", old_name, new_name),
10635 cx.clone(),
10636 )
10637 .await?;
10638
10639 editor.update(&mut cx, |editor, cx| {
10640 editor.refresh_document_highlights(cx);
10641 })?;
10642 Ok(())
10643 }))
10644 }
10645
10646 fn take_rename(
10647 &mut self,
10648 moving_cursor: bool,
10649 cx: &mut ViewContext<Self>,
10650 ) -> Option<RenameState> {
10651 let rename = self.pending_rename.take()?;
10652 if rename.editor.focus_handle(cx).is_focused(cx) {
10653 cx.focus(&self.focus_handle);
10654 }
10655
10656 self.remove_blocks(
10657 [rename.block_id].into_iter().collect(),
10658 Some(Autoscroll::fit()),
10659 cx,
10660 );
10661 self.clear_highlights::<Rename>(cx);
10662 self.show_local_selections = true;
10663
10664 if moving_cursor {
10665 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10666 editor.selections.newest::<usize>(cx).head()
10667 });
10668
10669 // Update the selection to match the position of the selection inside
10670 // the rename editor.
10671 let snapshot = self.buffer.read(cx).read(cx);
10672 let rename_range = rename.range.to_offset(&snapshot);
10673 let cursor_in_editor = snapshot
10674 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10675 .min(rename_range.end);
10676 drop(snapshot);
10677
10678 self.change_selections(None, cx, |s| {
10679 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10680 });
10681 } else {
10682 self.refresh_document_highlights(cx);
10683 }
10684
10685 Some(rename)
10686 }
10687
10688 pub fn pending_rename(&self) -> Option<&RenameState> {
10689 self.pending_rename.as_ref()
10690 }
10691
10692 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10693 let project = match &self.project {
10694 Some(project) => project.clone(),
10695 None => return None,
10696 };
10697
10698 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10699 }
10700
10701 fn format_selections(
10702 &mut self,
10703 _: &FormatSelections,
10704 cx: &mut ViewContext<Self>,
10705 ) -> Option<Task<Result<()>>> {
10706 let project = match &self.project {
10707 Some(project) => project.clone(),
10708 None => return None,
10709 };
10710
10711 let selections = self
10712 .selections
10713 .all_adjusted(cx)
10714 .into_iter()
10715 .filter(|s| !s.is_empty())
10716 .collect_vec();
10717
10718 Some(self.perform_format(
10719 project,
10720 FormatTrigger::Manual,
10721 FormatTarget::Ranges(selections),
10722 cx,
10723 ))
10724 }
10725
10726 fn perform_format(
10727 &mut self,
10728 project: Model<Project>,
10729 trigger: FormatTrigger,
10730 target: FormatTarget,
10731 cx: &mut ViewContext<Self>,
10732 ) -> Task<Result<()>> {
10733 let buffer = self.buffer().clone();
10734 let mut buffers = buffer.read(cx).all_buffers();
10735 if trigger == FormatTrigger::Save {
10736 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10737 }
10738
10739 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10740 let format = project.update(cx, |project, cx| {
10741 project.format(buffers, true, trigger, target, cx)
10742 });
10743
10744 cx.spawn(|_, mut cx| async move {
10745 let transaction = futures::select_biased! {
10746 () = timeout => {
10747 log::warn!("timed out waiting for formatting");
10748 None
10749 }
10750 transaction = format.log_err().fuse() => transaction,
10751 };
10752
10753 buffer
10754 .update(&mut cx, |buffer, cx| {
10755 if let Some(transaction) = transaction {
10756 if !buffer.is_singleton() {
10757 buffer.push_transaction(&transaction.0, cx);
10758 }
10759 }
10760
10761 cx.notify();
10762 })
10763 .ok();
10764
10765 Ok(())
10766 })
10767 }
10768
10769 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10770 if let Some(project) = self.project.clone() {
10771 self.buffer.update(cx, |multi_buffer, cx| {
10772 project.update(cx, |project, cx| {
10773 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10774 });
10775 })
10776 }
10777 }
10778
10779 fn cancel_language_server_work(
10780 &mut self,
10781 _: &actions::CancelLanguageServerWork,
10782 cx: &mut ViewContext<Self>,
10783 ) {
10784 if let Some(project) = self.project.clone() {
10785 self.buffer.update(cx, |multi_buffer, cx| {
10786 project.update(cx, |project, cx| {
10787 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10788 });
10789 })
10790 }
10791 }
10792
10793 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10794 cx.show_character_palette();
10795 }
10796
10797 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10798 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10799 let buffer = self.buffer.read(cx).snapshot(cx);
10800 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10801 let is_valid = buffer
10802 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10803 .any(|entry| {
10804 entry.diagnostic.is_primary
10805 && !entry.range.is_empty()
10806 && entry.range.start == primary_range_start
10807 && entry.diagnostic.message == active_diagnostics.primary_message
10808 });
10809
10810 if is_valid != active_diagnostics.is_valid {
10811 active_diagnostics.is_valid = is_valid;
10812 let mut new_styles = HashMap::default();
10813 for (block_id, diagnostic) in &active_diagnostics.blocks {
10814 new_styles.insert(
10815 *block_id,
10816 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10817 );
10818 }
10819 self.display_map.update(cx, |display_map, _cx| {
10820 display_map.replace_blocks(new_styles)
10821 });
10822 }
10823 }
10824 }
10825
10826 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10827 self.dismiss_diagnostics(cx);
10828 let snapshot = self.snapshot(cx);
10829 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10830 let buffer = self.buffer.read(cx).snapshot(cx);
10831
10832 let mut primary_range = None;
10833 let mut primary_message = None;
10834 let mut group_end = Point::zero();
10835 let diagnostic_group = buffer
10836 .diagnostic_group::<MultiBufferPoint>(group_id)
10837 .filter_map(|entry| {
10838 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10839 && (entry.range.start.row == entry.range.end.row
10840 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10841 {
10842 return None;
10843 }
10844 if entry.range.end > group_end {
10845 group_end = entry.range.end;
10846 }
10847 if entry.diagnostic.is_primary {
10848 primary_range = Some(entry.range.clone());
10849 primary_message = Some(entry.diagnostic.message.clone());
10850 }
10851 Some(entry)
10852 })
10853 .collect::<Vec<_>>();
10854 let primary_range = primary_range?;
10855 let primary_message = primary_message?;
10856 let primary_range =
10857 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10858
10859 let blocks = display_map
10860 .insert_blocks(
10861 diagnostic_group.iter().map(|entry| {
10862 let diagnostic = entry.diagnostic.clone();
10863 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10864 BlockProperties {
10865 style: BlockStyle::Fixed,
10866 placement: BlockPlacement::Below(
10867 buffer.anchor_after(entry.range.start),
10868 ),
10869 height: message_height,
10870 render: diagnostic_block_renderer(diagnostic, None, true, true),
10871 priority: 0,
10872 }
10873 }),
10874 cx,
10875 )
10876 .into_iter()
10877 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10878 .collect();
10879
10880 Some(ActiveDiagnosticGroup {
10881 primary_range,
10882 primary_message,
10883 group_id,
10884 blocks,
10885 is_valid: true,
10886 })
10887 });
10888 self.active_diagnostics.is_some()
10889 }
10890
10891 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10892 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10893 self.display_map.update(cx, |display_map, cx| {
10894 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10895 });
10896 cx.notify();
10897 }
10898 }
10899
10900 pub fn set_selections_from_remote(
10901 &mut self,
10902 selections: Vec<Selection<Anchor>>,
10903 pending_selection: Option<Selection<Anchor>>,
10904 cx: &mut ViewContext<Self>,
10905 ) {
10906 let old_cursor_position = self.selections.newest_anchor().head();
10907 self.selections.change_with(cx, |s| {
10908 s.select_anchors(selections);
10909 if let Some(pending_selection) = pending_selection {
10910 s.set_pending(pending_selection, SelectMode::Character);
10911 } else {
10912 s.clear_pending();
10913 }
10914 });
10915 self.selections_did_change(false, &old_cursor_position, true, cx);
10916 }
10917
10918 fn push_to_selection_history(&mut self) {
10919 self.selection_history.push(SelectionHistoryEntry {
10920 selections: self.selections.disjoint_anchors(),
10921 select_next_state: self.select_next_state.clone(),
10922 select_prev_state: self.select_prev_state.clone(),
10923 add_selections_state: self.add_selections_state.clone(),
10924 });
10925 }
10926
10927 pub fn transact(
10928 &mut self,
10929 cx: &mut ViewContext<Self>,
10930 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10931 ) -> Option<TransactionId> {
10932 self.start_transaction_at(Instant::now(), cx);
10933 update(self, cx);
10934 self.end_transaction_at(Instant::now(), cx)
10935 }
10936
10937 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10938 self.end_selection(cx);
10939 if let Some(tx_id) = self
10940 .buffer
10941 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10942 {
10943 self.selection_history
10944 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10945 cx.emit(EditorEvent::TransactionBegun {
10946 transaction_id: tx_id,
10947 })
10948 }
10949 }
10950
10951 fn end_transaction_at(
10952 &mut self,
10953 now: Instant,
10954 cx: &mut ViewContext<Self>,
10955 ) -> Option<TransactionId> {
10956 if let Some(transaction_id) = self
10957 .buffer
10958 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10959 {
10960 if let Some((_, end_selections)) =
10961 self.selection_history.transaction_mut(transaction_id)
10962 {
10963 *end_selections = Some(self.selections.disjoint_anchors());
10964 } else {
10965 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10966 }
10967
10968 cx.emit(EditorEvent::Edited { transaction_id });
10969 Some(transaction_id)
10970 } else {
10971 None
10972 }
10973 }
10974
10975 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10976 let selection = self.selections.newest::<Point>(cx);
10977
10978 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10979 let range = if selection.is_empty() {
10980 let point = selection.head().to_display_point(&display_map);
10981 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10982 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10983 .to_point(&display_map);
10984 start..end
10985 } else {
10986 selection.range()
10987 };
10988 if display_map.folds_in_range(range).next().is_some() {
10989 self.unfold_lines(&Default::default(), cx)
10990 } else {
10991 self.fold(&Default::default(), cx)
10992 }
10993 }
10994
10995 pub fn toggle_fold_recursive(
10996 &mut self,
10997 _: &actions::ToggleFoldRecursive,
10998 cx: &mut ViewContext<Self>,
10999 ) {
11000 let selection = self.selections.newest::<Point>(cx);
11001
11002 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11003 let range = if selection.is_empty() {
11004 let point = selection.head().to_display_point(&display_map);
11005 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
11006 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
11007 .to_point(&display_map);
11008 start..end
11009 } else {
11010 selection.range()
11011 };
11012 if display_map.folds_in_range(range).next().is_some() {
11013 self.unfold_recursive(&Default::default(), cx)
11014 } else {
11015 self.fold_recursive(&Default::default(), cx)
11016 }
11017 }
11018
11019 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
11020 let mut to_fold = Vec::new();
11021 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11022 let selections = self.selections.all_adjusted(cx);
11023
11024 for selection in selections {
11025 let range = selection.range().sorted();
11026 let buffer_start_row = range.start.row;
11027
11028 if range.start.row != range.end.row {
11029 let mut found = false;
11030 let mut row = range.start.row;
11031 while row <= range.end.row {
11032 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11033 found = true;
11034 row = crease.range().end.row + 1;
11035 to_fold.push(crease);
11036 } else {
11037 row += 1
11038 }
11039 }
11040 if found {
11041 continue;
11042 }
11043 }
11044
11045 for row in (0..=range.start.row).rev() {
11046 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11047 if crease.range().end.row >= buffer_start_row {
11048 to_fold.push(crease);
11049 if row <= range.start.row {
11050 break;
11051 }
11052 }
11053 }
11054 }
11055 }
11056
11057 self.fold_creases(to_fold, true, cx);
11058 }
11059
11060 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
11061 if !self.buffer.read(cx).is_singleton() {
11062 return;
11063 }
11064
11065 let fold_at_level = fold_at.level;
11066 let snapshot = self.buffer.read(cx).snapshot(cx);
11067 let mut to_fold = Vec::new();
11068 let mut stack = vec![(0, snapshot.max_row().0, 1)];
11069
11070 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
11071 while start_row < end_row {
11072 match self
11073 .snapshot(cx)
11074 .crease_for_buffer_row(MultiBufferRow(start_row))
11075 {
11076 Some(crease) => {
11077 let nested_start_row = crease.range().start.row + 1;
11078 let nested_end_row = crease.range().end.row;
11079
11080 if current_level < fold_at_level {
11081 stack.push((nested_start_row, nested_end_row, current_level + 1));
11082 } else if current_level == fold_at_level {
11083 to_fold.push(crease);
11084 }
11085
11086 start_row = nested_end_row + 1;
11087 }
11088 None => start_row += 1,
11089 }
11090 }
11091 }
11092
11093 self.fold_creases(to_fold, true, cx);
11094 }
11095
11096 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
11097 if !self.buffer.read(cx).is_singleton() {
11098 return;
11099 }
11100
11101 let mut fold_ranges = Vec::new();
11102 let snapshot = self.buffer.read(cx).snapshot(cx);
11103
11104 for row in 0..snapshot.max_row().0 {
11105 if let Some(foldable_range) =
11106 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
11107 {
11108 fold_ranges.push(foldable_range);
11109 }
11110 }
11111
11112 self.fold_creases(fold_ranges, true, cx);
11113 }
11114
11115 pub fn fold_function_bodies(
11116 &mut self,
11117 _: &actions::FoldFunctionBodies,
11118 cx: &mut ViewContext<Self>,
11119 ) {
11120 let snapshot = self.buffer.read(cx).snapshot(cx);
11121 let Some((_, _, buffer)) = snapshot.as_singleton() else {
11122 return;
11123 };
11124 let creases = buffer
11125 .function_body_fold_ranges(0..buffer.len())
11126 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
11127 .collect();
11128
11129 self.fold_creases(creases, true, cx);
11130 }
11131
11132 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
11133 let mut to_fold = Vec::new();
11134 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11135 let selections = self.selections.all_adjusted(cx);
11136
11137 for selection in selections {
11138 let range = selection.range().sorted();
11139 let buffer_start_row = range.start.row;
11140
11141 if range.start.row != range.end.row {
11142 let mut found = false;
11143 for row in range.start.row..=range.end.row {
11144 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11145 found = true;
11146 to_fold.push(crease);
11147 }
11148 }
11149 if found {
11150 continue;
11151 }
11152 }
11153
11154 for row in (0..=range.start.row).rev() {
11155 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11156 if crease.range().end.row >= buffer_start_row {
11157 to_fold.push(crease);
11158 } else {
11159 break;
11160 }
11161 }
11162 }
11163 }
11164
11165 self.fold_creases(to_fold, true, cx);
11166 }
11167
11168 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
11169 let buffer_row = fold_at.buffer_row;
11170 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11171
11172 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
11173 let autoscroll = self
11174 .selections
11175 .all::<Point>(cx)
11176 .iter()
11177 .any(|selection| crease.range().overlaps(&selection.range()));
11178
11179 self.fold_creases(vec![crease], autoscroll, cx);
11180 }
11181 }
11182
11183 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
11184 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11185 let buffer = &display_map.buffer_snapshot;
11186 let selections = self.selections.all::<Point>(cx);
11187 let ranges = selections
11188 .iter()
11189 .map(|s| {
11190 let range = s.display_range(&display_map).sorted();
11191 let mut start = range.start.to_point(&display_map);
11192 let mut end = range.end.to_point(&display_map);
11193 start.column = 0;
11194 end.column = buffer.line_len(MultiBufferRow(end.row));
11195 start..end
11196 })
11197 .collect::<Vec<_>>();
11198
11199 self.unfold_ranges(&ranges, true, true, cx);
11200 }
11201
11202 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
11203 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11204 let selections = self.selections.all::<Point>(cx);
11205 let ranges = selections
11206 .iter()
11207 .map(|s| {
11208 let mut range = s.display_range(&display_map).sorted();
11209 *range.start.column_mut() = 0;
11210 *range.end.column_mut() = display_map.line_len(range.end.row());
11211 let start = range.start.to_point(&display_map);
11212 let end = range.end.to_point(&display_map);
11213 start..end
11214 })
11215 .collect::<Vec<_>>();
11216
11217 self.unfold_ranges(&ranges, true, true, cx);
11218 }
11219
11220 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
11221 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11222
11223 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
11224 ..Point::new(
11225 unfold_at.buffer_row.0,
11226 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
11227 );
11228
11229 let autoscroll = self
11230 .selections
11231 .all::<Point>(cx)
11232 .iter()
11233 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
11234
11235 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
11236 }
11237
11238 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11239 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11240 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
11241 }
11242
11243 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11244 let selections = self.selections.all::<Point>(cx);
11245 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11246 let line_mode = self.selections.line_mode;
11247 let ranges = selections
11248 .into_iter()
11249 .map(|s| {
11250 if line_mode {
11251 let start = Point::new(s.start.row, 0);
11252 let end = Point::new(
11253 s.end.row,
11254 display_map
11255 .buffer_snapshot
11256 .line_len(MultiBufferRow(s.end.row)),
11257 );
11258 Crease::simple(start..end, display_map.fold_placeholder.clone())
11259 } else {
11260 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
11261 }
11262 })
11263 .collect::<Vec<_>>();
11264 self.fold_creases(ranges, true, cx);
11265 }
11266
11267 pub fn fold_creases<T: ToOffset + Clone>(
11268 &mut self,
11269 creases: Vec<Crease<T>>,
11270 auto_scroll: bool,
11271 cx: &mut ViewContext<Self>,
11272 ) {
11273 if creases.is_empty() {
11274 return;
11275 }
11276
11277 let mut buffers_affected = HashSet::default();
11278 let multi_buffer = self.buffer().read(cx);
11279 for crease in &creases {
11280 if let Some((_, buffer, _)) =
11281 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
11282 {
11283 buffers_affected.insert(buffer.read(cx).remote_id());
11284 };
11285 }
11286
11287 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
11288
11289 if auto_scroll {
11290 self.request_autoscroll(Autoscroll::fit(), cx);
11291 }
11292
11293 for buffer_id in buffers_affected {
11294 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
11295 }
11296
11297 cx.notify();
11298
11299 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11300 // Clear diagnostics block when folding a range that contains it.
11301 let snapshot = self.snapshot(cx);
11302 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11303 drop(snapshot);
11304 self.active_diagnostics = Some(active_diagnostics);
11305 self.dismiss_diagnostics(cx);
11306 } else {
11307 self.active_diagnostics = Some(active_diagnostics);
11308 }
11309 }
11310
11311 self.scrollbar_marker_state.dirty = true;
11312 }
11313
11314 /// Removes any folds whose ranges intersect any of the given ranges.
11315 pub fn unfold_ranges<T: ToOffset + Clone>(
11316 &mut self,
11317 ranges: &[Range<T>],
11318 inclusive: bool,
11319 auto_scroll: bool,
11320 cx: &mut ViewContext<Self>,
11321 ) {
11322 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11323 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
11324 });
11325 }
11326
11327 /// Removes any folds with the given ranges.
11328 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11329 &mut self,
11330 ranges: &[Range<T>],
11331 type_id: TypeId,
11332 auto_scroll: bool,
11333 cx: &mut ViewContext<Self>,
11334 ) {
11335 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11336 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11337 });
11338 }
11339
11340 fn remove_folds_with<T: ToOffset + Clone>(
11341 &mut self,
11342 ranges: &[Range<T>],
11343 auto_scroll: bool,
11344 cx: &mut ViewContext<Self>,
11345 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11346 ) {
11347 if ranges.is_empty() {
11348 return;
11349 }
11350
11351 let mut buffers_affected = HashSet::default();
11352 let multi_buffer = self.buffer().read(cx);
11353 for range in ranges {
11354 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11355 buffers_affected.insert(buffer.read(cx).remote_id());
11356 };
11357 }
11358
11359 self.display_map.update(cx, update);
11360
11361 if auto_scroll {
11362 self.request_autoscroll(Autoscroll::fit(), cx);
11363 }
11364
11365 for buffer_id in buffers_affected {
11366 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
11367 }
11368
11369 cx.notify();
11370 self.scrollbar_marker_state.dirty = true;
11371 self.active_indent_guides_state.dirty = true;
11372 }
11373
11374 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11375 self.display_map.read(cx).fold_placeholder.clone()
11376 }
11377
11378 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11379 if hovered != self.gutter_hovered {
11380 self.gutter_hovered = hovered;
11381 cx.notify();
11382 }
11383 }
11384
11385 pub fn insert_blocks(
11386 &mut self,
11387 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11388 autoscroll: Option<Autoscroll>,
11389 cx: &mut ViewContext<Self>,
11390 ) -> Vec<CustomBlockId> {
11391 let blocks = self
11392 .display_map
11393 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11394 if let Some(autoscroll) = autoscroll {
11395 self.request_autoscroll(autoscroll, cx);
11396 }
11397 cx.notify();
11398 blocks
11399 }
11400
11401 pub fn resize_blocks(
11402 &mut self,
11403 heights: HashMap<CustomBlockId, u32>,
11404 autoscroll: Option<Autoscroll>,
11405 cx: &mut ViewContext<Self>,
11406 ) {
11407 self.display_map
11408 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11409 if let Some(autoscroll) = autoscroll {
11410 self.request_autoscroll(autoscroll, cx);
11411 }
11412 cx.notify();
11413 }
11414
11415 pub fn replace_blocks(
11416 &mut self,
11417 renderers: HashMap<CustomBlockId, RenderBlock>,
11418 autoscroll: Option<Autoscroll>,
11419 cx: &mut ViewContext<Self>,
11420 ) {
11421 self.display_map
11422 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11423 if let Some(autoscroll) = autoscroll {
11424 self.request_autoscroll(autoscroll, cx);
11425 }
11426 cx.notify();
11427 }
11428
11429 pub fn remove_blocks(
11430 &mut self,
11431 block_ids: HashSet<CustomBlockId>,
11432 autoscroll: Option<Autoscroll>,
11433 cx: &mut ViewContext<Self>,
11434 ) {
11435 self.display_map.update(cx, |display_map, cx| {
11436 display_map.remove_blocks(block_ids, cx)
11437 });
11438 if let Some(autoscroll) = autoscroll {
11439 self.request_autoscroll(autoscroll, cx);
11440 }
11441 cx.notify();
11442 }
11443
11444 pub fn row_for_block(
11445 &self,
11446 block_id: CustomBlockId,
11447 cx: &mut ViewContext<Self>,
11448 ) -> Option<DisplayRow> {
11449 self.display_map
11450 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11451 }
11452
11453 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11454 self.focused_block = Some(focused_block);
11455 }
11456
11457 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11458 self.focused_block.take()
11459 }
11460
11461 pub fn insert_creases(
11462 &mut self,
11463 creases: impl IntoIterator<Item = Crease<Anchor>>,
11464 cx: &mut ViewContext<Self>,
11465 ) -> Vec<CreaseId> {
11466 self.display_map
11467 .update(cx, |map, cx| map.insert_creases(creases, cx))
11468 }
11469
11470 pub fn remove_creases(
11471 &mut self,
11472 ids: impl IntoIterator<Item = CreaseId>,
11473 cx: &mut ViewContext<Self>,
11474 ) {
11475 self.display_map
11476 .update(cx, |map, cx| map.remove_creases(ids, cx));
11477 }
11478
11479 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11480 self.display_map
11481 .update(cx, |map, cx| map.snapshot(cx))
11482 .longest_row()
11483 }
11484
11485 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11486 self.display_map
11487 .update(cx, |map, cx| map.snapshot(cx))
11488 .max_point()
11489 }
11490
11491 pub fn text(&self, cx: &AppContext) -> String {
11492 self.buffer.read(cx).read(cx).text()
11493 }
11494
11495 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11496 let text = self.text(cx);
11497 let text = text.trim();
11498
11499 if text.is_empty() {
11500 return None;
11501 }
11502
11503 Some(text.to_string())
11504 }
11505
11506 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11507 self.transact(cx, |this, cx| {
11508 this.buffer
11509 .read(cx)
11510 .as_singleton()
11511 .expect("you can only call set_text on editors for singleton buffers")
11512 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11513 });
11514 }
11515
11516 pub fn display_text(&self, cx: &mut AppContext) -> String {
11517 self.display_map
11518 .update(cx, |map, cx| map.snapshot(cx))
11519 .text()
11520 }
11521
11522 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11523 let mut wrap_guides = smallvec::smallvec![];
11524
11525 if self.show_wrap_guides == Some(false) {
11526 return wrap_guides;
11527 }
11528
11529 let settings = self.buffer.read(cx).settings_at(0, cx);
11530 if settings.show_wrap_guides {
11531 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11532 wrap_guides.push((soft_wrap as usize, true));
11533 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11534 wrap_guides.push((soft_wrap as usize, true));
11535 }
11536 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11537 }
11538
11539 wrap_guides
11540 }
11541
11542 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11543 let settings = self.buffer.read(cx).settings_at(0, cx);
11544 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11545 match mode {
11546 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11547 SoftWrap::None
11548 }
11549 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11550 language_settings::SoftWrap::PreferredLineLength => {
11551 SoftWrap::Column(settings.preferred_line_length)
11552 }
11553 language_settings::SoftWrap::Bounded => {
11554 SoftWrap::Bounded(settings.preferred_line_length)
11555 }
11556 }
11557 }
11558
11559 pub fn set_soft_wrap_mode(
11560 &mut self,
11561 mode: language_settings::SoftWrap,
11562 cx: &mut ViewContext<Self>,
11563 ) {
11564 self.soft_wrap_mode_override = Some(mode);
11565 cx.notify();
11566 }
11567
11568 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11569 self.text_style_refinement = Some(style);
11570 }
11571
11572 /// called by the Element so we know what style we were most recently rendered with.
11573 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11574 let rem_size = cx.rem_size();
11575 self.display_map.update(cx, |map, cx| {
11576 map.set_font(
11577 style.text.font(),
11578 style.text.font_size.to_pixels(rem_size),
11579 cx,
11580 )
11581 });
11582 self.style = Some(style);
11583 }
11584
11585 pub fn style(&self) -> Option<&EditorStyle> {
11586 self.style.as_ref()
11587 }
11588
11589 // Called by the element. This method is not designed to be called outside of the editor
11590 // element's layout code because it does not notify when rewrapping is computed synchronously.
11591 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11592 self.display_map
11593 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11594 }
11595
11596 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11597 if self.soft_wrap_mode_override.is_some() {
11598 self.soft_wrap_mode_override.take();
11599 } else {
11600 let soft_wrap = match self.soft_wrap_mode(cx) {
11601 SoftWrap::GitDiff => return,
11602 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11603 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11604 language_settings::SoftWrap::None
11605 }
11606 };
11607 self.soft_wrap_mode_override = Some(soft_wrap);
11608 }
11609 cx.notify();
11610 }
11611
11612 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11613 let Some(workspace) = self.workspace() else {
11614 return;
11615 };
11616 let fs = workspace.read(cx).app_state().fs.clone();
11617 let current_show = TabBarSettings::get_global(cx).show;
11618 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11619 setting.show = Some(!current_show);
11620 });
11621 }
11622
11623 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11624 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11625 self.buffer
11626 .read(cx)
11627 .settings_at(0, cx)
11628 .indent_guides
11629 .enabled
11630 });
11631 self.show_indent_guides = Some(!currently_enabled);
11632 cx.notify();
11633 }
11634
11635 fn should_show_indent_guides(&self) -> Option<bool> {
11636 self.show_indent_guides
11637 }
11638
11639 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11640 let mut editor_settings = EditorSettings::get_global(cx).clone();
11641 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11642 EditorSettings::override_global(editor_settings, cx);
11643 }
11644
11645 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11646 self.use_relative_line_numbers
11647 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11648 }
11649
11650 pub fn toggle_relative_line_numbers(
11651 &mut self,
11652 _: &ToggleRelativeLineNumbers,
11653 cx: &mut ViewContext<Self>,
11654 ) {
11655 let is_relative = self.should_use_relative_line_numbers(cx);
11656 self.set_relative_line_number(Some(!is_relative), cx)
11657 }
11658
11659 pub fn set_relative_line_number(
11660 &mut self,
11661 is_relative: Option<bool>,
11662 cx: &mut ViewContext<Self>,
11663 ) {
11664 self.use_relative_line_numbers = is_relative;
11665 cx.notify();
11666 }
11667
11668 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11669 self.show_gutter = show_gutter;
11670 cx.notify();
11671 }
11672
11673 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11674 self.show_line_numbers = Some(show_line_numbers);
11675 cx.notify();
11676 }
11677
11678 pub fn set_show_git_diff_gutter(
11679 &mut self,
11680 show_git_diff_gutter: bool,
11681 cx: &mut ViewContext<Self>,
11682 ) {
11683 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11684 cx.notify();
11685 }
11686
11687 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11688 self.show_code_actions = Some(show_code_actions);
11689 cx.notify();
11690 }
11691
11692 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11693 self.show_runnables = Some(show_runnables);
11694 cx.notify();
11695 }
11696
11697 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11698 if self.display_map.read(cx).masked != masked {
11699 self.display_map.update(cx, |map, _| map.masked = masked);
11700 }
11701 cx.notify()
11702 }
11703
11704 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11705 self.show_wrap_guides = Some(show_wrap_guides);
11706 cx.notify();
11707 }
11708
11709 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11710 self.show_indent_guides = Some(show_indent_guides);
11711 cx.notify();
11712 }
11713
11714 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11715 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11716 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11717 if let Some(dir) = file.abs_path(cx).parent() {
11718 return Some(dir.to_owned());
11719 }
11720 }
11721
11722 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11723 return Some(project_path.path.to_path_buf());
11724 }
11725 }
11726
11727 None
11728 }
11729
11730 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11731 self.active_excerpt(cx)?
11732 .1
11733 .read(cx)
11734 .file()
11735 .and_then(|f| f.as_local())
11736 }
11737
11738 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11739 if let Some(target) = self.target_file(cx) {
11740 cx.reveal_path(&target.abs_path(cx));
11741 }
11742 }
11743
11744 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11745 if let Some(file) = self.target_file(cx) {
11746 if let Some(path) = file.abs_path(cx).to_str() {
11747 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11748 }
11749 }
11750 }
11751
11752 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11753 if let Some(file) = self.target_file(cx) {
11754 if let Some(path) = file.path().to_str() {
11755 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11756 }
11757 }
11758 }
11759
11760 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11761 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11762
11763 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11764 self.start_git_blame(true, cx);
11765 }
11766
11767 cx.notify();
11768 }
11769
11770 pub fn toggle_git_blame_inline(
11771 &mut self,
11772 _: &ToggleGitBlameInline,
11773 cx: &mut ViewContext<Self>,
11774 ) {
11775 self.toggle_git_blame_inline_internal(true, cx);
11776 cx.notify();
11777 }
11778
11779 pub fn git_blame_inline_enabled(&self) -> bool {
11780 self.git_blame_inline_enabled
11781 }
11782
11783 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11784 self.show_selection_menu = self
11785 .show_selection_menu
11786 .map(|show_selections_menu| !show_selections_menu)
11787 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11788
11789 cx.notify();
11790 }
11791
11792 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11793 self.show_selection_menu
11794 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11795 }
11796
11797 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11798 if let Some(project) = self.project.as_ref() {
11799 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11800 return;
11801 };
11802
11803 if buffer.read(cx).file().is_none() {
11804 return;
11805 }
11806
11807 let focused = self.focus_handle(cx).contains_focused(cx);
11808
11809 let project = project.clone();
11810 let blame =
11811 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11812 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11813 self.blame = Some(blame);
11814 }
11815 }
11816
11817 fn toggle_git_blame_inline_internal(
11818 &mut self,
11819 user_triggered: bool,
11820 cx: &mut ViewContext<Self>,
11821 ) {
11822 if self.git_blame_inline_enabled {
11823 self.git_blame_inline_enabled = false;
11824 self.show_git_blame_inline = false;
11825 self.show_git_blame_inline_delay_task.take();
11826 } else {
11827 self.git_blame_inline_enabled = true;
11828 self.start_git_blame_inline(user_triggered, cx);
11829 }
11830
11831 cx.notify();
11832 }
11833
11834 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11835 self.start_git_blame(user_triggered, cx);
11836
11837 if ProjectSettings::get_global(cx)
11838 .git
11839 .inline_blame_delay()
11840 .is_some()
11841 {
11842 self.start_inline_blame_timer(cx);
11843 } else {
11844 self.show_git_blame_inline = true
11845 }
11846 }
11847
11848 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11849 self.blame.as_ref()
11850 }
11851
11852 pub fn show_git_blame_gutter(&self) -> bool {
11853 self.show_git_blame_gutter
11854 }
11855
11856 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11857 self.show_git_blame_gutter && self.has_blame_entries(cx)
11858 }
11859
11860 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11861 self.show_git_blame_inline
11862 && self.focus_handle.is_focused(cx)
11863 && !self.newest_selection_head_on_empty_line(cx)
11864 && self.has_blame_entries(cx)
11865 }
11866
11867 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11868 self.blame()
11869 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11870 }
11871
11872 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11873 let cursor_anchor = self.selections.newest_anchor().head();
11874
11875 let snapshot = self.buffer.read(cx).snapshot(cx);
11876 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11877
11878 snapshot.line_len(buffer_row) == 0
11879 }
11880
11881 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11882 let buffer_and_selection = maybe!({
11883 let selection = self.selections.newest::<Point>(cx);
11884 let selection_range = selection.range();
11885
11886 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11887 (buffer, selection_range.start.row..selection_range.end.row)
11888 } else {
11889 let buffer_ranges = self
11890 .buffer()
11891 .read(cx)
11892 .range_to_buffer_ranges(selection_range, cx);
11893
11894 let (buffer, range, _) = if selection.reversed {
11895 buffer_ranges.first()
11896 } else {
11897 buffer_ranges.last()
11898 }?;
11899
11900 let snapshot = buffer.read(cx).snapshot();
11901 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11902 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11903 (buffer.clone(), selection)
11904 };
11905
11906 Some((buffer, selection))
11907 });
11908
11909 let Some((buffer, selection)) = buffer_and_selection else {
11910 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11911 };
11912
11913 let Some(project) = self.project.as_ref() else {
11914 return Task::ready(Err(anyhow!("editor does not have project")));
11915 };
11916
11917 project.update(cx, |project, cx| {
11918 project.get_permalink_to_line(&buffer, selection, cx)
11919 })
11920 }
11921
11922 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11923 let permalink_task = self.get_permalink_to_line(cx);
11924 let workspace = self.workspace();
11925
11926 cx.spawn(|_, mut cx| async move {
11927 match permalink_task.await {
11928 Ok(permalink) => {
11929 cx.update(|cx| {
11930 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11931 })
11932 .ok();
11933 }
11934 Err(err) => {
11935 let message = format!("Failed to copy permalink: {err}");
11936
11937 Err::<(), anyhow::Error>(err).log_err();
11938
11939 if let Some(workspace) = workspace {
11940 workspace
11941 .update(&mut cx, |workspace, cx| {
11942 struct CopyPermalinkToLine;
11943
11944 workspace.show_toast(
11945 Toast::new(
11946 NotificationId::unique::<CopyPermalinkToLine>(),
11947 message,
11948 ),
11949 cx,
11950 )
11951 })
11952 .ok();
11953 }
11954 }
11955 }
11956 })
11957 .detach();
11958 }
11959
11960 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11961 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11962 if let Some(file) = self.target_file(cx) {
11963 if let Some(path) = file.path().to_str() {
11964 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11965 }
11966 }
11967 }
11968
11969 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11970 let permalink_task = self.get_permalink_to_line(cx);
11971 let workspace = self.workspace();
11972
11973 cx.spawn(|_, mut cx| async move {
11974 match permalink_task.await {
11975 Ok(permalink) => {
11976 cx.update(|cx| {
11977 cx.open_url(permalink.as_ref());
11978 })
11979 .ok();
11980 }
11981 Err(err) => {
11982 let message = format!("Failed to open permalink: {err}");
11983
11984 Err::<(), anyhow::Error>(err).log_err();
11985
11986 if let Some(workspace) = workspace {
11987 workspace
11988 .update(&mut cx, |workspace, cx| {
11989 struct OpenPermalinkToLine;
11990
11991 workspace.show_toast(
11992 Toast::new(
11993 NotificationId::unique::<OpenPermalinkToLine>(),
11994 message,
11995 ),
11996 cx,
11997 )
11998 })
11999 .ok();
12000 }
12001 }
12002 }
12003 })
12004 .detach();
12005 }
12006
12007 /// Adds a row highlight for the given range. If a row has multiple highlights, the
12008 /// last highlight added will be used.
12009 ///
12010 /// If the range ends at the beginning of a line, then that line will not be highlighted.
12011 pub fn highlight_rows<T: 'static>(
12012 &mut self,
12013 range: Range<Anchor>,
12014 color: Hsla,
12015 should_autoscroll: bool,
12016 cx: &mut ViewContext<Self>,
12017 ) {
12018 let snapshot = self.buffer().read(cx).snapshot(cx);
12019 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12020 let ix = row_highlights.binary_search_by(|highlight| {
12021 Ordering::Equal
12022 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
12023 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
12024 });
12025
12026 if let Err(mut ix) = ix {
12027 let index = post_inc(&mut self.highlight_order);
12028
12029 // If this range intersects with the preceding highlight, then merge it with
12030 // the preceding highlight. Otherwise insert a new highlight.
12031 let mut merged = false;
12032 if ix > 0 {
12033 let prev_highlight = &mut row_highlights[ix - 1];
12034 if prev_highlight
12035 .range
12036 .end
12037 .cmp(&range.start, &snapshot)
12038 .is_ge()
12039 {
12040 ix -= 1;
12041 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
12042 prev_highlight.range.end = range.end;
12043 }
12044 merged = true;
12045 prev_highlight.index = index;
12046 prev_highlight.color = color;
12047 prev_highlight.should_autoscroll = should_autoscroll;
12048 }
12049 }
12050
12051 if !merged {
12052 row_highlights.insert(
12053 ix,
12054 RowHighlight {
12055 range: range.clone(),
12056 index,
12057 color,
12058 should_autoscroll,
12059 },
12060 );
12061 }
12062
12063 // If any of the following highlights intersect with this one, merge them.
12064 while let Some(next_highlight) = row_highlights.get(ix + 1) {
12065 let highlight = &row_highlights[ix];
12066 if next_highlight
12067 .range
12068 .start
12069 .cmp(&highlight.range.end, &snapshot)
12070 .is_le()
12071 {
12072 if next_highlight
12073 .range
12074 .end
12075 .cmp(&highlight.range.end, &snapshot)
12076 .is_gt()
12077 {
12078 row_highlights[ix].range.end = next_highlight.range.end;
12079 }
12080 row_highlights.remove(ix + 1);
12081 } else {
12082 break;
12083 }
12084 }
12085 }
12086 }
12087
12088 /// Remove any highlighted row ranges of the given type that intersect the
12089 /// given ranges.
12090 pub fn remove_highlighted_rows<T: 'static>(
12091 &mut self,
12092 ranges_to_remove: Vec<Range<Anchor>>,
12093 cx: &mut ViewContext<Self>,
12094 ) {
12095 let snapshot = self.buffer().read(cx).snapshot(cx);
12096 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12097 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
12098 row_highlights.retain(|highlight| {
12099 while let Some(range_to_remove) = ranges_to_remove.peek() {
12100 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
12101 Ordering::Less | Ordering::Equal => {
12102 ranges_to_remove.next();
12103 }
12104 Ordering::Greater => {
12105 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
12106 Ordering::Less | Ordering::Equal => {
12107 return false;
12108 }
12109 Ordering::Greater => break,
12110 }
12111 }
12112 }
12113 }
12114
12115 true
12116 })
12117 }
12118
12119 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
12120 pub fn clear_row_highlights<T: 'static>(&mut self) {
12121 self.highlighted_rows.remove(&TypeId::of::<T>());
12122 }
12123
12124 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
12125 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
12126 self.highlighted_rows
12127 .get(&TypeId::of::<T>())
12128 .map_or(&[] as &[_], |vec| vec.as_slice())
12129 .iter()
12130 .map(|highlight| (highlight.range.clone(), highlight.color))
12131 }
12132
12133 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
12134 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
12135 /// Allows to ignore certain kinds of highlights.
12136 pub fn highlighted_display_rows(
12137 &mut self,
12138 cx: &mut WindowContext,
12139 ) -> BTreeMap<DisplayRow, Hsla> {
12140 let snapshot = self.snapshot(cx);
12141 let mut used_highlight_orders = HashMap::default();
12142 self.highlighted_rows
12143 .iter()
12144 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
12145 .fold(
12146 BTreeMap::<DisplayRow, Hsla>::new(),
12147 |mut unique_rows, highlight| {
12148 let start = highlight.range.start.to_display_point(&snapshot);
12149 let end = highlight.range.end.to_display_point(&snapshot);
12150 let start_row = start.row().0;
12151 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
12152 && end.column() == 0
12153 {
12154 end.row().0.saturating_sub(1)
12155 } else {
12156 end.row().0
12157 };
12158 for row in start_row..=end_row {
12159 let used_index =
12160 used_highlight_orders.entry(row).or_insert(highlight.index);
12161 if highlight.index >= *used_index {
12162 *used_index = highlight.index;
12163 unique_rows.insert(DisplayRow(row), highlight.color);
12164 }
12165 }
12166 unique_rows
12167 },
12168 )
12169 }
12170
12171 pub fn highlighted_display_row_for_autoscroll(
12172 &self,
12173 snapshot: &DisplaySnapshot,
12174 ) -> Option<DisplayRow> {
12175 self.highlighted_rows
12176 .values()
12177 .flat_map(|highlighted_rows| highlighted_rows.iter())
12178 .filter_map(|highlight| {
12179 if highlight.should_autoscroll {
12180 Some(highlight.range.start.to_display_point(snapshot).row())
12181 } else {
12182 None
12183 }
12184 })
12185 .min()
12186 }
12187
12188 pub fn set_search_within_ranges(
12189 &mut self,
12190 ranges: &[Range<Anchor>],
12191 cx: &mut ViewContext<Self>,
12192 ) {
12193 self.highlight_background::<SearchWithinRange>(
12194 ranges,
12195 |colors| colors.editor_document_highlight_read_background,
12196 cx,
12197 )
12198 }
12199
12200 pub fn set_breadcrumb_header(&mut self, new_header: String) {
12201 self.breadcrumb_header = Some(new_header);
12202 }
12203
12204 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12205 self.clear_background_highlights::<SearchWithinRange>(cx);
12206 }
12207
12208 pub fn highlight_background<T: 'static>(
12209 &mut self,
12210 ranges: &[Range<Anchor>],
12211 color_fetcher: fn(&ThemeColors) -> Hsla,
12212 cx: &mut ViewContext<Self>,
12213 ) {
12214 self.background_highlights
12215 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12216 self.scrollbar_marker_state.dirty = true;
12217 cx.notify();
12218 }
12219
12220 pub fn clear_background_highlights<T: 'static>(
12221 &mut self,
12222 cx: &mut ViewContext<Self>,
12223 ) -> Option<BackgroundHighlight> {
12224 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12225 if !text_highlights.1.is_empty() {
12226 self.scrollbar_marker_state.dirty = true;
12227 cx.notify();
12228 }
12229 Some(text_highlights)
12230 }
12231
12232 pub fn highlight_gutter<T: 'static>(
12233 &mut self,
12234 ranges: &[Range<Anchor>],
12235 color_fetcher: fn(&AppContext) -> Hsla,
12236 cx: &mut ViewContext<Self>,
12237 ) {
12238 self.gutter_highlights
12239 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12240 cx.notify();
12241 }
12242
12243 pub fn clear_gutter_highlights<T: 'static>(
12244 &mut self,
12245 cx: &mut ViewContext<Self>,
12246 ) -> Option<GutterHighlight> {
12247 cx.notify();
12248 self.gutter_highlights.remove(&TypeId::of::<T>())
12249 }
12250
12251 #[cfg(feature = "test-support")]
12252 pub fn all_text_background_highlights(
12253 &mut self,
12254 cx: &mut ViewContext<Self>,
12255 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12256 let snapshot = self.snapshot(cx);
12257 let buffer = &snapshot.buffer_snapshot;
12258 let start = buffer.anchor_before(0);
12259 let end = buffer.anchor_after(buffer.len());
12260 let theme = cx.theme().colors();
12261 self.background_highlights_in_range(start..end, &snapshot, theme)
12262 }
12263
12264 #[cfg(feature = "test-support")]
12265 pub fn search_background_highlights(
12266 &mut self,
12267 cx: &mut ViewContext<Self>,
12268 ) -> Vec<Range<Point>> {
12269 let snapshot = self.buffer().read(cx).snapshot(cx);
12270
12271 let highlights = self
12272 .background_highlights
12273 .get(&TypeId::of::<items::BufferSearchHighlights>());
12274
12275 if let Some((_color, ranges)) = highlights {
12276 ranges
12277 .iter()
12278 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12279 .collect_vec()
12280 } else {
12281 vec![]
12282 }
12283 }
12284
12285 fn document_highlights_for_position<'a>(
12286 &'a self,
12287 position: Anchor,
12288 buffer: &'a MultiBufferSnapshot,
12289 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12290 let read_highlights = self
12291 .background_highlights
12292 .get(&TypeId::of::<DocumentHighlightRead>())
12293 .map(|h| &h.1);
12294 let write_highlights = self
12295 .background_highlights
12296 .get(&TypeId::of::<DocumentHighlightWrite>())
12297 .map(|h| &h.1);
12298 let left_position = position.bias_left(buffer);
12299 let right_position = position.bias_right(buffer);
12300 read_highlights
12301 .into_iter()
12302 .chain(write_highlights)
12303 .flat_map(move |ranges| {
12304 let start_ix = match ranges.binary_search_by(|probe| {
12305 let cmp = probe.end.cmp(&left_position, buffer);
12306 if cmp.is_ge() {
12307 Ordering::Greater
12308 } else {
12309 Ordering::Less
12310 }
12311 }) {
12312 Ok(i) | Err(i) => i,
12313 };
12314
12315 ranges[start_ix..]
12316 .iter()
12317 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12318 })
12319 }
12320
12321 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12322 self.background_highlights
12323 .get(&TypeId::of::<T>())
12324 .map_or(false, |(_, highlights)| !highlights.is_empty())
12325 }
12326
12327 pub fn background_highlights_in_range(
12328 &self,
12329 search_range: Range<Anchor>,
12330 display_snapshot: &DisplaySnapshot,
12331 theme: &ThemeColors,
12332 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12333 let mut results = Vec::new();
12334 for (color_fetcher, ranges) in self.background_highlights.values() {
12335 let color = color_fetcher(theme);
12336 let start_ix = match ranges.binary_search_by(|probe| {
12337 let cmp = probe
12338 .end
12339 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12340 if cmp.is_gt() {
12341 Ordering::Greater
12342 } else {
12343 Ordering::Less
12344 }
12345 }) {
12346 Ok(i) | Err(i) => i,
12347 };
12348 for range in &ranges[start_ix..] {
12349 if range
12350 .start
12351 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12352 .is_ge()
12353 {
12354 break;
12355 }
12356
12357 let start = range.start.to_display_point(display_snapshot);
12358 let end = range.end.to_display_point(display_snapshot);
12359 results.push((start..end, color))
12360 }
12361 }
12362 results
12363 }
12364
12365 pub fn background_highlight_row_ranges<T: 'static>(
12366 &self,
12367 search_range: Range<Anchor>,
12368 display_snapshot: &DisplaySnapshot,
12369 count: usize,
12370 ) -> Vec<RangeInclusive<DisplayPoint>> {
12371 let mut results = Vec::new();
12372 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12373 return vec![];
12374 };
12375
12376 let start_ix = match ranges.binary_search_by(|probe| {
12377 let cmp = probe
12378 .end
12379 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12380 if cmp.is_gt() {
12381 Ordering::Greater
12382 } else {
12383 Ordering::Less
12384 }
12385 }) {
12386 Ok(i) | Err(i) => i,
12387 };
12388 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12389 if let (Some(start_display), Some(end_display)) = (start, end) {
12390 results.push(
12391 start_display.to_display_point(display_snapshot)
12392 ..=end_display.to_display_point(display_snapshot),
12393 );
12394 }
12395 };
12396 let mut start_row: Option<Point> = None;
12397 let mut end_row: Option<Point> = None;
12398 if ranges.len() > count {
12399 return Vec::new();
12400 }
12401 for range in &ranges[start_ix..] {
12402 if range
12403 .start
12404 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12405 .is_ge()
12406 {
12407 break;
12408 }
12409 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12410 if let Some(current_row) = &end_row {
12411 if end.row == current_row.row {
12412 continue;
12413 }
12414 }
12415 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12416 if start_row.is_none() {
12417 assert_eq!(end_row, None);
12418 start_row = Some(start);
12419 end_row = Some(end);
12420 continue;
12421 }
12422 if let Some(current_end) = end_row.as_mut() {
12423 if start.row > current_end.row + 1 {
12424 push_region(start_row, end_row);
12425 start_row = Some(start);
12426 end_row = Some(end);
12427 } else {
12428 // Merge two hunks.
12429 *current_end = end;
12430 }
12431 } else {
12432 unreachable!();
12433 }
12434 }
12435 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12436 push_region(start_row, end_row);
12437 results
12438 }
12439
12440 pub fn gutter_highlights_in_range(
12441 &self,
12442 search_range: Range<Anchor>,
12443 display_snapshot: &DisplaySnapshot,
12444 cx: &AppContext,
12445 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12446 let mut results = Vec::new();
12447 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12448 let color = color_fetcher(cx);
12449 let start_ix = match ranges.binary_search_by(|probe| {
12450 let cmp = probe
12451 .end
12452 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12453 if cmp.is_gt() {
12454 Ordering::Greater
12455 } else {
12456 Ordering::Less
12457 }
12458 }) {
12459 Ok(i) | Err(i) => i,
12460 };
12461 for range in &ranges[start_ix..] {
12462 if range
12463 .start
12464 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12465 .is_ge()
12466 {
12467 break;
12468 }
12469
12470 let start = range.start.to_display_point(display_snapshot);
12471 let end = range.end.to_display_point(display_snapshot);
12472 results.push((start..end, color))
12473 }
12474 }
12475 results
12476 }
12477
12478 /// Get the text ranges corresponding to the redaction query
12479 pub fn redacted_ranges(
12480 &self,
12481 search_range: Range<Anchor>,
12482 display_snapshot: &DisplaySnapshot,
12483 cx: &WindowContext,
12484 ) -> Vec<Range<DisplayPoint>> {
12485 display_snapshot
12486 .buffer_snapshot
12487 .redacted_ranges(search_range, |file| {
12488 if let Some(file) = file {
12489 file.is_private()
12490 && EditorSettings::get(
12491 Some(SettingsLocation {
12492 worktree_id: file.worktree_id(cx),
12493 path: file.path().as_ref(),
12494 }),
12495 cx,
12496 )
12497 .redact_private_values
12498 } else {
12499 false
12500 }
12501 })
12502 .map(|range| {
12503 range.start.to_display_point(display_snapshot)
12504 ..range.end.to_display_point(display_snapshot)
12505 })
12506 .collect()
12507 }
12508
12509 pub fn highlight_text<T: 'static>(
12510 &mut self,
12511 ranges: Vec<Range<Anchor>>,
12512 style: HighlightStyle,
12513 cx: &mut ViewContext<Self>,
12514 ) {
12515 self.display_map.update(cx, |map, _| {
12516 map.highlight_text(TypeId::of::<T>(), ranges, style)
12517 });
12518 cx.notify();
12519 }
12520
12521 pub(crate) fn highlight_inlays<T: 'static>(
12522 &mut self,
12523 highlights: Vec<InlayHighlight>,
12524 style: HighlightStyle,
12525 cx: &mut ViewContext<Self>,
12526 ) {
12527 self.display_map.update(cx, |map, _| {
12528 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12529 });
12530 cx.notify();
12531 }
12532
12533 pub fn text_highlights<'a, T: 'static>(
12534 &'a self,
12535 cx: &'a AppContext,
12536 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12537 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12538 }
12539
12540 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12541 let cleared = self
12542 .display_map
12543 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12544 if cleared {
12545 cx.notify();
12546 }
12547 }
12548
12549 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12550 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12551 && self.focus_handle.is_focused(cx)
12552 }
12553
12554 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12555 self.show_cursor_when_unfocused = is_enabled;
12556 cx.notify();
12557 }
12558
12559 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12560 cx.notify();
12561 }
12562
12563 fn on_buffer_event(
12564 &mut self,
12565 multibuffer: Model<MultiBuffer>,
12566 event: &multi_buffer::Event,
12567 cx: &mut ViewContext<Self>,
12568 ) {
12569 match event {
12570 multi_buffer::Event::Edited {
12571 singleton_buffer_edited,
12572 } => {
12573 self.scrollbar_marker_state.dirty = true;
12574 self.active_indent_guides_state.dirty = true;
12575 self.refresh_active_diagnostics(cx);
12576 self.refresh_code_actions(cx);
12577 if self.has_active_inline_completion(cx) {
12578 self.update_visible_inline_completion(cx);
12579 }
12580 cx.emit(EditorEvent::BufferEdited);
12581 cx.emit(SearchEvent::MatchesInvalidated);
12582 if *singleton_buffer_edited {
12583 if let Some(project) = &self.project {
12584 let project = project.read(cx);
12585 #[allow(clippy::mutable_key_type)]
12586 let languages_affected = multibuffer
12587 .read(cx)
12588 .all_buffers()
12589 .into_iter()
12590 .filter_map(|buffer| {
12591 let buffer = buffer.read(cx);
12592 let language = buffer.language()?;
12593 if project.is_local()
12594 && project.language_servers_for_buffer(buffer, cx).count() == 0
12595 {
12596 None
12597 } else {
12598 Some(language)
12599 }
12600 })
12601 .cloned()
12602 .collect::<HashSet<_>>();
12603 if !languages_affected.is_empty() {
12604 self.refresh_inlay_hints(
12605 InlayHintRefreshReason::BufferEdited(languages_affected),
12606 cx,
12607 );
12608 }
12609 }
12610 }
12611
12612 let Some(project) = &self.project else { return };
12613 let (telemetry, is_via_ssh) = {
12614 let project = project.read(cx);
12615 let telemetry = project.client().telemetry().clone();
12616 let is_via_ssh = project.is_via_ssh();
12617 (telemetry, is_via_ssh)
12618 };
12619 refresh_linked_ranges(self, cx);
12620 telemetry.log_edit_event("editor", is_via_ssh);
12621 }
12622 multi_buffer::Event::ExcerptsAdded {
12623 buffer,
12624 predecessor,
12625 excerpts,
12626 } => {
12627 self.tasks_update_task = Some(self.refresh_runnables(cx));
12628 let buffer_id = buffer.read(cx).remote_id();
12629 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12630 if let Some(project) = &self.project {
12631 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12632 }
12633 }
12634 cx.emit(EditorEvent::ExcerptsAdded {
12635 buffer: buffer.clone(),
12636 predecessor: *predecessor,
12637 excerpts: excerpts.clone(),
12638 });
12639 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12640 }
12641 multi_buffer::Event::ExcerptsRemoved { ids } => {
12642 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12643 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12644 }
12645 multi_buffer::Event::ExcerptsEdited { ids } => {
12646 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12647 }
12648 multi_buffer::Event::ExcerptsExpanded { ids } => {
12649 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12650 }
12651 multi_buffer::Event::Reparsed(buffer_id) => {
12652 self.tasks_update_task = Some(self.refresh_runnables(cx));
12653
12654 cx.emit(EditorEvent::Reparsed(*buffer_id));
12655 }
12656 multi_buffer::Event::LanguageChanged(buffer_id) => {
12657 linked_editing_ranges::refresh_linked_ranges(self, cx);
12658 cx.emit(EditorEvent::Reparsed(*buffer_id));
12659 cx.notify();
12660 }
12661 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12662 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12663 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12664 cx.emit(EditorEvent::TitleChanged)
12665 }
12666 // multi_buffer::Event::DiffBaseChanged => {
12667 // self.scrollbar_marker_state.dirty = true;
12668 // cx.emit(EditorEvent::DiffBaseChanged);
12669 // cx.notify();
12670 // }
12671 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12672 multi_buffer::Event::DiagnosticsUpdated => {
12673 self.refresh_active_diagnostics(cx);
12674 self.scrollbar_marker_state.dirty = true;
12675 cx.notify();
12676 }
12677 _ => {}
12678 };
12679 }
12680
12681 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12682 cx.notify();
12683 }
12684
12685 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12686 self.tasks_update_task = Some(self.refresh_runnables(cx));
12687 self.refresh_inline_completion(true, false, cx);
12688 self.refresh_inlay_hints(
12689 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12690 self.selections.newest_anchor().head(),
12691 &self.buffer.read(cx).snapshot(cx),
12692 cx,
12693 )),
12694 cx,
12695 );
12696
12697 let old_cursor_shape = self.cursor_shape;
12698
12699 {
12700 let editor_settings = EditorSettings::get_global(cx);
12701 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12702 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12703 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12704 }
12705
12706 if old_cursor_shape != self.cursor_shape {
12707 cx.emit(EditorEvent::CursorShapeChanged);
12708 }
12709
12710 let project_settings = ProjectSettings::get_global(cx);
12711 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12712
12713 if self.mode == EditorMode::Full {
12714 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12715 if self.git_blame_inline_enabled != inline_blame_enabled {
12716 self.toggle_git_blame_inline_internal(false, cx);
12717 }
12718 }
12719
12720 cx.notify();
12721 }
12722
12723 pub fn set_searchable(&mut self, searchable: bool) {
12724 self.searchable = searchable;
12725 }
12726
12727 pub fn searchable(&self) -> bool {
12728 self.searchable
12729 }
12730
12731 fn open_proposed_changes_editor(
12732 &mut self,
12733 _: &OpenProposedChangesEditor,
12734 cx: &mut ViewContext<Self>,
12735 ) {
12736 let Some(workspace) = self.workspace() else {
12737 cx.propagate();
12738 return;
12739 };
12740
12741 let selections = self.selections.all::<usize>(cx);
12742 let buffer = self.buffer.read(cx);
12743 let mut new_selections_by_buffer = HashMap::default();
12744 for selection in selections {
12745 for (buffer, range, _) in
12746 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12747 {
12748 let mut range = range.to_point(buffer.read(cx));
12749 range.start.column = 0;
12750 range.end.column = buffer.read(cx).line_len(range.end.row);
12751 new_selections_by_buffer
12752 .entry(buffer)
12753 .or_insert(Vec::new())
12754 .push(range)
12755 }
12756 }
12757
12758 let proposed_changes_buffers = new_selections_by_buffer
12759 .into_iter()
12760 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12761 .collect::<Vec<_>>();
12762 let proposed_changes_editor = cx.new_view(|cx| {
12763 ProposedChangesEditor::new(
12764 "Proposed changes",
12765 proposed_changes_buffers,
12766 self.project.clone(),
12767 cx,
12768 )
12769 });
12770
12771 cx.window_context().defer(move |cx| {
12772 workspace.update(cx, |workspace, cx| {
12773 workspace.active_pane().update(cx, |pane, cx| {
12774 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12775 });
12776 });
12777 });
12778 }
12779
12780 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12781 self.open_excerpts_common(None, true, cx)
12782 }
12783
12784 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12785 self.open_excerpts_common(None, false, cx)
12786 }
12787
12788 fn open_excerpts_common(
12789 &mut self,
12790 jump_data: Option<JumpData>,
12791 split: bool,
12792 cx: &mut ViewContext<Self>,
12793 ) {
12794 let Some(workspace) = self.workspace() else {
12795 cx.propagate();
12796 return;
12797 };
12798
12799 if self.buffer.read(cx).is_singleton() {
12800 cx.propagate();
12801 return;
12802 }
12803
12804 let mut new_selections_by_buffer = HashMap::default();
12805 match &jump_data {
12806 Some(jump_data) => {
12807 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12808 if let Some(buffer) = multi_buffer_snapshot
12809 .buffer_id_for_excerpt(jump_data.excerpt_id)
12810 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12811 {
12812 let buffer_snapshot = buffer.read(cx).snapshot();
12813 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12814 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12815 } else {
12816 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12817 };
12818 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12819 new_selections_by_buffer.insert(
12820 buffer,
12821 (
12822 vec![jump_to_offset..jump_to_offset],
12823 Some(jump_data.line_offset_from_top),
12824 ),
12825 );
12826 }
12827 }
12828 None => {
12829 let selections = self.selections.all::<usize>(cx);
12830 let buffer = self.buffer.read(cx);
12831 for selection in selections {
12832 for (mut buffer_handle, mut range, _) in
12833 buffer.range_to_buffer_ranges(selection.range(), cx)
12834 {
12835 // When editing branch buffers, jump to the corresponding location
12836 // in their base buffer.
12837 let buffer = buffer_handle.read(cx);
12838 if let Some(base_buffer) = buffer.base_buffer() {
12839 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12840 buffer_handle = base_buffer;
12841 }
12842
12843 if selection.reversed {
12844 mem::swap(&mut range.start, &mut range.end);
12845 }
12846 new_selections_by_buffer
12847 .entry(buffer_handle)
12848 .or_insert((Vec::new(), None))
12849 .0
12850 .push(range)
12851 }
12852 }
12853 }
12854 }
12855
12856 if new_selections_by_buffer.is_empty() {
12857 return;
12858 }
12859
12860 // We defer the pane interaction because we ourselves are a workspace item
12861 // and activating a new item causes the pane to call a method on us reentrantly,
12862 // which panics if we're on the stack.
12863 cx.window_context().defer(move |cx| {
12864 workspace.update(cx, |workspace, cx| {
12865 let pane = if split {
12866 workspace.adjacent_pane(cx)
12867 } else {
12868 workspace.active_pane().clone()
12869 };
12870
12871 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12872 let editor = buffer
12873 .read(cx)
12874 .file()
12875 .is_none()
12876 .then(|| {
12877 // Handle file-less buffers separately: those are not really the project items, so won't have a paroject path or entity id,
12878 // so `workspace.open_project_item` will never find them, always opening a new editor.
12879 // Instead, we try to activate the existing editor in the pane first.
12880 let (editor, pane_item_index) =
12881 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12882 let editor = item.downcast::<Editor>()?;
12883 let singleton_buffer =
12884 editor.read(cx).buffer().read(cx).as_singleton()?;
12885 if singleton_buffer == buffer {
12886 Some((editor, i))
12887 } else {
12888 None
12889 }
12890 })?;
12891 pane.update(cx, |pane, cx| {
12892 pane.activate_item(pane_item_index, true, true, cx)
12893 });
12894 Some(editor)
12895 })
12896 .flatten()
12897 .unwrap_or_else(|| {
12898 workspace.open_project_item::<Self>(
12899 pane.clone(),
12900 buffer,
12901 true,
12902 true,
12903 cx,
12904 )
12905 });
12906
12907 editor.update(cx, |editor, cx| {
12908 let autoscroll = match scroll_offset {
12909 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12910 None => Autoscroll::newest(),
12911 };
12912 let nav_history = editor.nav_history.take();
12913 editor.change_selections(Some(autoscroll), cx, |s| {
12914 s.select_ranges(ranges);
12915 });
12916 editor.nav_history = nav_history;
12917 });
12918 }
12919 })
12920 });
12921 }
12922
12923 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12924 let snapshot = self.buffer.read(cx).read(cx);
12925 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12926 Some(
12927 ranges
12928 .iter()
12929 .map(move |range| {
12930 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12931 })
12932 .collect(),
12933 )
12934 }
12935
12936 fn selection_replacement_ranges(
12937 &self,
12938 range: Range<OffsetUtf16>,
12939 cx: &mut AppContext,
12940 ) -> Vec<Range<OffsetUtf16>> {
12941 let selections = self.selections.all::<OffsetUtf16>(cx);
12942 let newest_selection = selections
12943 .iter()
12944 .max_by_key(|selection| selection.id)
12945 .unwrap();
12946 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12947 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12948 let snapshot = self.buffer.read(cx).read(cx);
12949 selections
12950 .into_iter()
12951 .map(|mut selection| {
12952 selection.start.0 =
12953 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12954 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12955 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12956 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12957 })
12958 .collect()
12959 }
12960
12961 fn report_editor_event(
12962 &self,
12963 operation: &'static str,
12964 file_extension: Option<String>,
12965 cx: &AppContext,
12966 ) {
12967 if cfg!(any(test, feature = "test-support")) {
12968 return;
12969 }
12970
12971 let Some(project) = &self.project else { return };
12972
12973 // If None, we are in a file without an extension
12974 let file = self
12975 .buffer
12976 .read(cx)
12977 .as_singleton()
12978 .and_then(|b| b.read(cx).file());
12979 let file_extension = file_extension.or(file
12980 .as_ref()
12981 .and_then(|file| Path::new(file.file_name(cx)).extension())
12982 .and_then(|e| e.to_str())
12983 .map(|a| a.to_string()));
12984
12985 let vim_mode = cx
12986 .global::<SettingsStore>()
12987 .raw_user_settings()
12988 .get("vim_mode")
12989 == Some(&serde_json::Value::Bool(true));
12990
12991 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12992 == language::language_settings::InlineCompletionProvider::Copilot;
12993 let copilot_enabled_for_language = self
12994 .buffer
12995 .read(cx)
12996 .settings_at(0, cx)
12997 .show_inline_completions;
12998
12999 let project = project.read(cx);
13000 let telemetry = project.client().telemetry().clone();
13001 telemetry.report_editor_event(
13002 file_extension,
13003 vim_mode,
13004 operation,
13005 copilot_enabled,
13006 copilot_enabled_for_language,
13007 project.is_via_ssh(),
13008 )
13009 }
13010
13011 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
13012 /// with each line being an array of {text, highlight} objects.
13013 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
13014 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
13015 return;
13016 };
13017
13018 #[derive(Serialize)]
13019 struct Chunk<'a> {
13020 text: String,
13021 highlight: Option<&'a str>,
13022 }
13023
13024 let snapshot = buffer.read(cx).snapshot();
13025 let range = self
13026 .selected_text_range(false, cx)
13027 .and_then(|selection| {
13028 if selection.range.is_empty() {
13029 None
13030 } else {
13031 Some(selection.range)
13032 }
13033 })
13034 .unwrap_or_else(|| 0..snapshot.len());
13035
13036 let chunks = snapshot.chunks(range, true);
13037 let mut lines = Vec::new();
13038 let mut line: VecDeque<Chunk> = VecDeque::new();
13039
13040 let Some(style) = self.style.as_ref() else {
13041 return;
13042 };
13043
13044 for chunk in chunks {
13045 let highlight = chunk
13046 .syntax_highlight_id
13047 .and_then(|id| id.name(&style.syntax));
13048 let mut chunk_lines = chunk.text.split('\n').peekable();
13049 while let Some(text) = chunk_lines.next() {
13050 let mut merged_with_last_token = false;
13051 if let Some(last_token) = line.back_mut() {
13052 if last_token.highlight == highlight {
13053 last_token.text.push_str(text);
13054 merged_with_last_token = true;
13055 }
13056 }
13057
13058 if !merged_with_last_token {
13059 line.push_back(Chunk {
13060 text: text.into(),
13061 highlight,
13062 });
13063 }
13064
13065 if chunk_lines.peek().is_some() {
13066 if line.len() > 1 && line.front().unwrap().text.is_empty() {
13067 line.pop_front();
13068 }
13069 if line.len() > 1 && line.back().unwrap().text.is_empty() {
13070 line.pop_back();
13071 }
13072
13073 lines.push(mem::take(&mut line));
13074 }
13075 }
13076 }
13077
13078 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
13079 return;
13080 };
13081 cx.write_to_clipboard(ClipboardItem::new_string(lines));
13082 }
13083
13084 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
13085 self.request_autoscroll(Autoscroll::newest(), cx);
13086 let position = self.selections.newest_display(cx).start;
13087 mouse_context_menu::deploy_context_menu(self, None, position, cx);
13088 }
13089
13090 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
13091 &self.inlay_hint_cache
13092 }
13093
13094 pub fn replay_insert_event(
13095 &mut self,
13096 text: &str,
13097 relative_utf16_range: Option<Range<isize>>,
13098 cx: &mut ViewContext<Self>,
13099 ) {
13100 if !self.input_enabled {
13101 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13102 return;
13103 }
13104 if let Some(relative_utf16_range) = relative_utf16_range {
13105 let selections = self.selections.all::<OffsetUtf16>(cx);
13106 self.change_selections(None, cx, |s| {
13107 let new_ranges = selections.into_iter().map(|range| {
13108 let start = OffsetUtf16(
13109 range
13110 .head()
13111 .0
13112 .saturating_add_signed(relative_utf16_range.start),
13113 );
13114 let end = OffsetUtf16(
13115 range
13116 .head()
13117 .0
13118 .saturating_add_signed(relative_utf16_range.end),
13119 );
13120 start..end
13121 });
13122 s.select_ranges(new_ranges);
13123 });
13124 }
13125
13126 self.handle_input(text, cx);
13127 }
13128
13129 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
13130 let Some(provider) = self.semantics_provider.as_ref() else {
13131 return false;
13132 };
13133
13134 let mut supports = false;
13135 self.buffer().read(cx).for_each_buffer(|buffer| {
13136 supports |= provider.supports_inlay_hints(buffer, cx);
13137 });
13138 supports
13139 }
13140
13141 pub fn focus(&self, cx: &mut WindowContext) {
13142 cx.focus(&self.focus_handle)
13143 }
13144
13145 pub fn is_focused(&self, cx: &WindowContext) -> bool {
13146 self.focus_handle.is_focused(cx)
13147 }
13148
13149 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
13150 cx.emit(EditorEvent::Focused);
13151
13152 if let Some(descendant) = self
13153 .last_focused_descendant
13154 .take()
13155 .and_then(|descendant| descendant.upgrade())
13156 {
13157 cx.focus(&descendant);
13158 } else {
13159 if let Some(blame) = self.blame.as_ref() {
13160 blame.update(cx, GitBlame::focus)
13161 }
13162
13163 self.blink_manager.update(cx, BlinkManager::enable);
13164 self.show_cursor_names(cx);
13165 self.buffer.update(cx, |buffer, cx| {
13166 buffer.finalize_last_transaction(cx);
13167 if self.leader_peer_id.is_none() {
13168 buffer.set_active_selections(
13169 &self.selections.disjoint_anchors(),
13170 self.selections.line_mode,
13171 self.cursor_shape,
13172 cx,
13173 );
13174 }
13175 });
13176 }
13177 }
13178
13179 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
13180 cx.emit(EditorEvent::FocusedIn)
13181 }
13182
13183 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
13184 if event.blurred != self.focus_handle {
13185 self.last_focused_descendant = Some(event.blurred);
13186 }
13187 }
13188
13189 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
13190 self.blink_manager.update(cx, BlinkManager::disable);
13191 self.buffer
13192 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
13193
13194 if let Some(blame) = self.blame.as_ref() {
13195 blame.update(cx, GitBlame::blur)
13196 }
13197 if !self.hover_state.focused(cx) {
13198 hide_hover(self, cx);
13199 }
13200
13201 self.hide_context_menu(cx);
13202 cx.emit(EditorEvent::Blurred);
13203 cx.notify();
13204 }
13205
13206 pub fn register_action<A: Action>(
13207 &mut self,
13208 listener: impl Fn(&A, &mut WindowContext) + 'static,
13209 ) -> Subscription {
13210 let id = self.next_editor_action_id.post_inc();
13211 let listener = Arc::new(listener);
13212 self.editor_actions.borrow_mut().insert(
13213 id,
13214 Box::new(move |cx| {
13215 let cx = cx.window_context();
13216 let listener = listener.clone();
13217 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
13218 let action = action.downcast_ref().unwrap();
13219 if phase == DispatchPhase::Bubble {
13220 listener(action, cx)
13221 }
13222 })
13223 }),
13224 );
13225
13226 let editor_actions = self.editor_actions.clone();
13227 Subscription::new(move || {
13228 editor_actions.borrow_mut().remove(&id);
13229 })
13230 }
13231
13232 pub fn file_header_size(&self) -> u32 {
13233 FILE_HEADER_HEIGHT
13234 }
13235
13236 pub fn revert(
13237 &mut self,
13238 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13239 cx: &mut ViewContext<Self>,
13240 ) {
13241 self.buffer().update(cx, |multi_buffer, cx| {
13242 for (buffer_id, changes) in revert_changes {
13243 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13244 buffer.update(cx, |buffer, cx| {
13245 buffer.edit(
13246 changes.into_iter().map(|(range, text)| {
13247 (range, text.to_string().map(Arc::<str>::from))
13248 }),
13249 None,
13250 cx,
13251 );
13252 });
13253 }
13254 }
13255 });
13256 self.change_selections(None, cx, |selections| selections.refresh());
13257 }
13258
13259 pub fn to_pixel_point(
13260 &mut self,
13261 source: multi_buffer::Anchor,
13262 editor_snapshot: &EditorSnapshot,
13263 cx: &mut ViewContext<Self>,
13264 ) -> Option<gpui::Point<Pixels>> {
13265 let source_point = source.to_display_point(editor_snapshot);
13266 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13267 }
13268
13269 pub fn display_to_pixel_point(
13270 &mut self,
13271 source: DisplayPoint,
13272 editor_snapshot: &EditorSnapshot,
13273 cx: &mut ViewContext<Self>,
13274 ) -> Option<gpui::Point<Pixels>> {
13275 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13276 let text_layout_details = self.text_layout_details(cx);
13277 let scroll_top = text_layout_details
13278 .scroll_anchor
13279 .scroll_position(editor_snapshot)
13280 .y;
13281
13282 if source.row().as_f32() < scroll_top.floor() {
13283 return None;
13284 }
13285 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13286 let source_y = line_height * (source.row().as_f32() - scroll_top);
13287 Some(gpui::Point::new(source_x, source_y))
13288 }
13289
13290 pub fn has_active_completions_menu(&self) -> bool {
13291 self.context_menu.read().as_ref().map_or(false, |menu| {
13292 menu.visible() && matches!(menu, ContextMenu::Completions(_))
13293 })
13294 }
13295
13296 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13297 self.addons
13298 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13299 }
13300
13301 pub fn unregister_addon<T: Addon>(&mut self) {
13302 self.addons.remove(&std::any::TypeId::of::<T>());
13303 }
13304
13305 pub fn addon<T: Addon>(&self) -> Option<&T> {
13306 let type_id = std::any::TypeId::of::<T>();
13307 self.addons
13308 .get(&type_id)
13309 .and_then(|item| item.to_any().downcast_ref::<T>())
13310 }
13311
13312 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
13313 let text_layout_details = self.text_layout_details(cx);
13314 let style = &text_layout_details.editor_style;
13315 let font_id = cx.text_system().resolve_font(&style.text.font());
13316 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13317 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13318
13319 let em_width = cx
13320 .text_system()
13321 .typographic_bounds(font_id, font_size, 'm')
13322 .unwrap()
13323 .size
13324 .width;
13325
13326 gpui::Point::new(em_width, line_height)
13327 }
13328}
13329
13330fn get_unstaged_changes_for_buffers(
13331 project: &Model<Project>,
13332 buffers: impl IntoIterator<Item = Model<Buffer>>,
13333 cx: &mut ViewContext<Editor>,
13334) {
13335 let mut tasks = Vec::new();
13336 project.update(cx, |project, cx| {
13337 for buffer in buffers {
13338 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
13339 }
13340 });
13341 cx.spawn(|this, mut cx| async move {
13342 let change_sets = futures::future::join_all(tasks).await;
13343 this.update(&mut cx, |this, cx| {
13344 for change_set in change_sets {
13345 if let Some(change_set) = change_set.log_err() {
13346 this.diff_map.add_change_set(change_set, cx);
13347 }
13348 }
13349 })
13350 .ok();
13351 })
13352 .detach();
13353}
13354
13355fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13356 let tab_size = tab_size.get() as usize;
13357 let mut width = offset;
13358
13359 for ch in text.chars() {
13360 width += if ch == '\t' {
13361 tab_size - (width % tab_size)
13362 } else {
13363 1
13364 };
13365 }
13366
13367 width - offset
13368}
13369
13370#[cfg(test)]
13371mod tests {
13372 use super::*;
13373
13374 #[test]
13375 fn test_string_size_with_expanded_tabs() {
13376 let nz = |val| NonZeroU32::new(val).unwrap();
13377 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13378 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13379 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13380 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13381 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13382 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13383 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13384 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13385 }
13386}
13387
13388/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13389struct WordBreakingTokenizer<'a> {
13390 input: &'a str,
13391}
13392
13393impl<'a> WordBreakingTokenizer<'a> {
13394 fn new(input: &'a str) -> Self {
13395 Self { input }
13396 }
13397}
13398
13399fn is_char_ideographic(ch: char) -> bool {
13400 use unicode_script::Script::*;
13401 use unicode_script::UnicodeScript;
13402 matches!(ch.script(), Han | Tangut | Yi)
13403}
13404
13405fn is_grapheme_ideographic(text: &str) -> bool {
13406 text.chars().any(is_char_ideographic)
13407}
13408
13409fn is_grapheme_whitespace(text: &str) -> bool {
13410 text.chars().any(|x| x.is_whitespace())
13411}
13412
13413fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13414 text.chars().next().map_or(false, |ch| {
13415 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13416 })
13417}
13418
13419#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13420struct WordBreakToken<'a> {
13421 token: &'a str,
13422 grapheme_len: usize,
13423 is_whitespace: bool,
13424}
13425
13426impl<'a> Iterator for WordBreakingTokenizer<'a> {
13427 /// Yields a span, the count of graphemes in the token, and whether it was
13428 /// whitespace. Note that it also breaks at word boundaries.
13429 type Item = WordBreakToken<'a>;
13430
13431 fn next(&mut self) -> Option<Self::Item> {
13432 use unicode_segmentation::UnicodeSegmentation;
13433 if self.input.is_empty() {
13434 return None;
13435 }
13436
13437 let mut iter = self.input.graphemes(true).peekable();
13438 let mut offset = 0;
13439 let mut graphemes = 0;
13440 if let Some(first_grapheme) = iter.next() {
13441 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13442 offset += first_grapheme.len();
13443 graphemes += 1;
13444 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13445 if let Some(grapheme) = iter.peek().copied() {
13446 if should_stay_with_preceding_ideograph(grapheme) {
13447 offset += grapheme.len();
13448 graphemes += 1;
13449 }
13450 }
13451 } else {
13452 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13453 let mut next_word_bound = words.peek().copied();
13454 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13455 next_word_bound = words.next();
13456 }
13457 while let Some(grapheme) = iter.peek().copied() {
13458 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13459 break;
13460 };
13461 if is_grapheme_whitespace(grapheme) != is_whitespace {
13462 break;
13463 };
13464 offset += grapheme.len();
13465 graphemes += 1;
13466 iter.next();
13467 }
13468 }
13469 let token = &self.input[..offset];
13470 self.input = &self.input[offset..];
13471 if is_whitespace {
13472 Some(WordBreakToken {
13473 token: " ",
13474 grapheme_len: 1,
13475 is_whitespace: true,
13476 })
13477 } else {
13478 Some(WordBreakToken {
13479 token,
13480 grapheme_len: graphemes,
13481 is_whitespace: false,
13482 })
13483 }
13484 } else {
13485 None
13486 }
13487 }
13488}
13489
13490#[test]
13491fn test_word_breaking_tokenizer() {
13492 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13493 ("", &[]),
13494 (" ", &[(" ", 1, true)]),
13495 ("Ʒ", &[("Ʒ", 1, false)]),
13496 ("Ǽ", &[("Ǽ", 1, false)]),
13497 ("⋑", &[("⋑", 1, false)]),
13498 ("⋑⋑", &[("⋑⋑", 2, false)]),
13499 (
13500 "原理，进而",
13501 &[
13502 ("原", 1, false),
13503 ("理，", 2, false),
13504 ("进", 1, false),
13505 ("而", 1, false),
13506 ],
13507 ),
13508 (
13509 "hello world",
13510 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13511 ),
13512 (
13513 "hello, world",
13514 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13515 ),
13516 (
13517 " hello world",
13518 &[
13519 (" ", 1, true),
13520 ("hello", 5, false),
13521 (" ", 1, true),
13522 ("world", 5, false),
13523 ],
13524 ),
13525 (
13526 "这是什么 \n 钢笔",
13527 &[
13528 ("这", 1, false),
13529 ("是", 1, false),
13530 ("什", 1, false),
13531 ("么", 1, false),
13532 (" ", 1, true),
13533 ("钢", 1, false),
13534 ("笔", 1, false),
13535 ],
13536 ),
13537 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13538 ];
13539
13540 for (input, result) in tests {
13541 assert_eq!(
13542 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13543 result
13544 .iter()
13545 .copied()
13546 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13547 token,
13548 grapheme_len,
13549 is_whitespace,
13550 })
13551 .collect::<Vec<_>>()
13552 );
13553 }
13554}
13555
13556fn wrap_with_prefix(
13557 line_prefix: String,
13558 unwrapped_text: String,
13559 wrap_column: usize,
13560 tab_size: NonZeroU32,
13561) -> String {
13562 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13563 let mut wrapped_text = String::new();
13564 let mut current_line = line_prefix.clone();
13565
13566 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13567 let mut current_line_len = line_prefix_len;
13568 for WordBreakToken {
13569 token,
13570 grapheme_len,
13571 is_whitespace,
13572 } in tokenizer
13573 {
13574 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13575 wrapped_text.push_str(current_line.trim_end());
13576 wrapped_text.push('\n');
13577 current_line.truncate(line_prefix.len());
13578 current_line_len = line_prefix_len;
13579 if !is_whitespace {
13580 current_line.push_str(token);
13581 current_line_len += grapheme_len;
13582 }
13583 } else if !is_whitespace {
13584 current_line.push_str(token);
13585 current_line_len += grapheme_len;
13586 } else if current_line_len != line_prefix_len {
13587 current_line.push(' ');
13588 current_line_len += 1;
13589 }
13590 }
13591
13592 if !current_line.is_empty() {
13593 wrapped_text.push_str(¤t_line);
13594 }
13595 wrapped_text
13596}
13597
13598#[test]
13599fn test_wrap_with_prefix() {
13600 assert_eq!(
13601 wrap_with_prefix(
13602 "# ".to_string(),
13603 "abcdefg".to_string(),
13604 4,
13605 NonZeroU32::new(4).unwrap()
13606 ),
13607 "# abcdefg"
13608 );
13609 assert_eq!(
13610 wrap_with_prefix(
13611 "".to_string(),
13612 "\thello world".to_string(),
13613 8,
13614 NonZeroU32::new(4).unwrap()
13615 ),
13616 "hello\nworld"
13617 );
13618 assert_eq!(
13619 wrap_with_prefix(
13620 "// ".to_string(),
13621 "xx \nyy zz aa bb cc".to_string(),
13622 12,
13623 NonZeroU32::new(4).unwrap()
13624 ),
13625 "// xx yy zz\n// aa bb cc"
13626 );
13627 assert_eq!(
13628 wrap_with_prefix(
13629 String::new(),
13630 "这是什么 \n 钢笔".to_string(),
13631 3,
13632 NonZeroU32::new(4).unwrap()
13633 ),
13634 "这是什\n么 钢\n笔"
13635 );
13636}
13637
13638fn hunks_for_selections(
13639 snapshot: &EditorSnapshot,
13640 selections: &[Selection<Point>],
13641) -> Vec<MultiBufferDiffHunk> {
13642 hunks_for_ranges(
13643 selections.iter().map(|selection| selection.range()),
13644 snapshot,
13645 )
13646}
13647
13648pub fn hunks_for_ranges(
13649 ranges: impl Iterator<Item = Range<Point>>,
13650 snapshot: &EditorSnapshot,
13651) -> Vec<MultiBufferDiffHunk> {
13652 let mut hunks = Vec::new();
13653 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13654 HashMap::default();
13655 for query_range in ranges {
13656 let query_rows =
13657 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13658 for hunk in snapshot.diff_map.diff_hunks_in_range(
13659 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13660 &snapshot.buffer_snapshot,
13661 ) {
13662 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13663 // when the caret is just above or just below the deleted hunk.
13664 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13665 let related_to_selection = if allow_adjacent {
13666 hunk.row_range.overlaps(&query_rows)
13667 || hunk.row_range.start == query_rows.end
13668 || hunk.row_range.end == query_rows.start
13669 } else {
13670 hunk.row_range.overlaps(&query_rows)
13671 };
13672 if related_to_selection {
13673 if !processed_buffer_rows
13674 .entry(hunk.buffer_id)
13675 .or_default()
13676 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13677 {
13678 continue;
13679 }
13680 hunks.push(hunk);
13681 }
13682 }
13683 }
13684
13685 hunks
13686}
13687
13688pub trait CollaborationHub {
13689 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13690 fn user_participant_indices<'a>(
13691 &self,
13692 cx: &'a AppContext,
13693 ) -> &'a HashMap<u64, ParticipantIndex>;
13694 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13695}
13696
13697impl CollaborationHub for Model<Project> {
13698 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13699 self.read(cx).collaborators()
13700 }
13701
13702 fn user_participant_indices<'a>(
13703 &self,
13704 cx: &'a AppContext,
13705 ) -> &'a HashMap<u64, ParticipantIndex> {
13706 self.read(cx).user_store().read(cx).participant_indices()
13707 }
13708
13709 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13710 let this = self.read(cx);
13711 let user_ids = this.collaborators().values().map(|c| c.user_id);
13712 this.user_store().read_with(cx, |user_store, cx| {
13713 user_store.participant_names(user_ids, cx)
13714 })
13715 }
13716}
13717
13718pub trait SemanticsProvider {
13719 fn hover(
13720 &self,
13721 buffer: &Model<Buffer>,
13722 position: text::Anchor,
13723 cx: &mut AppContext,
13724 ) -> Option<Task<Vec<project::Hover>>>;
13725
13726 fn inlay_hints(
13727 &self,
13728 buffer_handle: Model<Buffer>,
13729 range: Range<text::Anchor>,
13730 cx: &mut AppContext,
13731 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13732
13733 fn resolve_inlay_hint(
13734 &self,
13735 hint: InlayHint,
13736 buffer_handle: Model<Buffer>,
13737 server_id: LanguageServerId,
13738 cx: &mut AppContext,
13739 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13740
13741 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13742
13743 fn document_highlights(
13744 &self,
13745 buffer: &Model<Buffer>,
13746 position: text::Anchor,
13747 cx: &mut AppContext,
13748 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13749
13750 fn definitions(
13751 &self,
13752 buffer: &Model<Buffer>,
13753 position: text::Anchor,
13754 kind: GotoDefinitionKind,
13755 cx: &mut AppContext,
13756 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13757
13758 fn range_for_rename(
13759 &self,
13760 buffer: &Model<Buffer>,
13761 position: text::Anchor,
13762 cx: &mut AppContext,
13763 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13764
13765 fn perform_rename(
13766 &self,
13767 buffer: &Model<Buffer>,
13768 position: text::Anchor,
13769 new_name: String,
13770 cx: &mut AppContext,
13771 ) -> Option<Task<Result<ProjectTransaction>>>;
13772}
13773
13774pub trait CompletionProvider {
13775 fn completions(
13776 &self,
13777 buffer: &Model<Buffer>,
13778 buffer_position: text::Anchor,
13779 trigger: CompletionContext,
13780 cx: &mut ViewContext<Editor>,
13781 ) -> Task<Result<Vec<Completion>>>;
13782
13783 fn resolve_completions(
13784 &self,
13785 buffer: Model<Buffer>,
13786 completion_indices: Vec<usize>,
13787 completions: Arc<RwLock<Box<[Completion]>>>,
13788 cx: &mut ViewContext<Editor>,
13789 ) -> Task<Result<bool>>;
13790
13791 fn apply_additional_edits_for_completion(
13792 &self,
13793 buffer: Model<Buffer>,
13794 completion: Completion,
13795 push_to_history: bool,
13796 cx: &mut ViewContext<Editor>,
13797 ) -> Task<Result<Option<language::Transaction>>>;
13798
13799 fn is_completion_trigger(
13800 &self,
13801 buffer: &Model<Buffer>,
13802 position: language::Anchor,
13803 text: &str,
13804 trigger_in_words: bool,
13805 cx: &mut ViewContext<Editor>,
13806 ) -> bool;
13807
13808 fn sort_completions(&self) -> bool {
13809 true
13810 }
13811}
13812
13813pub trait CodeActionProvider {
13814 fn code_actions(
13815 &self,
13816 buffer: &Model<Buffer>,
13817 range: Range<text::Anchor>,
13818 cx: &mut WindowContext,
13819 ) -> Task<Result<Vec<CodeAction>>>;
13820
13821 fn apply_code_action(
13822 &self,
13823 buffer_handle: Model<Buffer>,
13824 action: CodeAction,
13825 excerpt_id: ExcerptId,
13826 push_to_history: bool,
13827 cx: &mut WindowContext,
13828 ) -> Task<Result<ProjectTransaction>>;
13829}
13830
13831impl CodeActionProvider for Model<Project> {
13832 fn code_actions(
13833 &self,
13834 buffer: &Model<Buffer>,
13835 range: Range<text::Anchor>,
13836 cx: &mut WindowContext,
13837 ) -> Task<Result<Vec<CodeAction>>> {
13838 self.update(cx, |project, cx| {
13839 project.code_actions(buffer, range, None, cx)
13840 })
13841 }
13842
13843 fn apply_code_action(
13844 &self,
13845 buffer_handle: Model<Buffer>,
13846 action: CodeAction,
13847 _excerpt_id: ExcerptId,
13848 push_to_history: bool,
13849 cx: &mut WindowContext,
13850 ) -> Task<Result<ProjectTransaction>> {
13851 self.update(cx, |project, cx| {
13852 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13853 })
13854 }
13855}
13856
13857fn snippet_completions(
13858 project: &Project,
13859 buffer: &Model<Buffer>,
13860 buffer_position: text::Anchor,
13861 cx: &mut AppContext,
13862) -> Task<Result<Vec<Completion>>> {
13863 let language = buffer.read(cx).language_at(buffer_position);
13864 let language_name = language.as_ref().map(|language| language.lsp_id());
13865 let snippet_store = project.snippets().read(cx);
13866 let snippets = snippet_store.snippets_for(language_name, cx);
13867
13868 if snippets.is_empty() {
13869 return Task::ready(Ok(vec![]));
13870 }
13871 let snapshot = buffer.read(cx).text_snapshot();
13872 let chars: String = snapshot
13873 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13874 .collect();
13875
13876 let scope = language.map(|language| language.default_scope());
13877 let executor = cx.background_executor().clone();
13878
13879 cx.background_executor().spawn(async move {
13880 let classifier = CharClassifier::new(scope).for_completion(true);
13881 let mut last_word = chars
13882 .chars()
13883 .take_while(|c| classifier.is_word(*c))
13884 .collect::<String>();
13885 last_word = last_word.chars().rev().collect();
13886
13887 if last_word.is_empty() {
13888 return Ok(vec![]);
13889 }
13890
13891 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13892 let to_lsp = |point: &text::Anchor| {
13893 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13894 point_to_lsp(end)
13895 };
13896 let lsp_end = to_lsp(&buffer_position);
13897
13898 let candidates = snippets
13899 .iter()
13900 .enumerate()
13901 .flat_map(|(ix, snippet)| {
13902 snippet
13903 .prefix
13904 .iter()
13905 .map(move |prefix| StringMatchCandidate::new(ix, prefix.clone()))
13906 })
13907 .collect::<Vec<StringMatchCandidate>>();
13908
13909 let mut matches = fuzzy::match_strings(
13910 &candidates,
13911 &last_word,
13912 last_word.chars().any(|c| c.is_uppercase()),
13913 100,
13914 &Default::default(),
13915 executor,
13916 )
13917 .await;
13918
13919 // Remove all candidates where the query's start does not match the start of any word in the candidate
13920 if let Some(query_start) = last_word.chars().next() {
13921 matches.retain(|string_match| {
13922 split_words(&string_match.string).any(|word| {
13923 // Check that the first codepoint of the word as lowercase matches the first
13924 // codepoint of the query as lowercase
13925 word.chars()
13926 .flat_map(|codepoint| codepoint.to_lowercase())
13927 .zip(query_start.to_lowercase())
13928 .all(|(word_cp, query_cp)| word_cp == query_cp)
13929 })
13930 });
13931 }
13932
13933 let matched_strings = matches
13934 .into_iter()
13935 .map(|m| m.string)
13936 .collect::<HashSet<_>>();
13937
13938 let result: Vec<Completion> = snippets
13939 .into_iter()
13940 .filter_map(|snippet| {
13941 let matching_prefix = snippet
13942 .prefix
13943 .iter()
13944 .find(|prefix| matched_strings.contains(*prefix))?;
13945 let start = as_offset - last_word.len();
13946 let start = snapshot.anchor_before(start);
13947 let range = start..buffer_position;
13948 let lsp_start = to_lsp(&start);
13949 let lsp_range = lsp::Range {
13950 start: lsp_start,
13951 end: lsp_end,
13952 };
13953 Some(Completion {
13954 old_range: range,
13955 new_text: snippet.body.clone(),
13956 label: CodeLabel {
13957 text: matching_prefix.clone(),
13958 runs: vec![],
13959 filter_range: 0..matching_prefix.len(),
13960 },
13961 server_id: LanguageServerId(usize::MAX),
13962 documentation: snippet.description.clone().map(Documentation::SingleLine),
13963 lsp_completion: lsp::CompletionItem {
13964 label: snippet.prefix.first().unwrap().clone(),
13965 kind: Some(CompletionItemKind::SNIPPET),
13966 label_details: snippet.description.as_ref().map(|description| {
13967 lsp::CompletionItemLabelDetails {
13968 detail: Some(description.clone()),
13969 description: None,
13970 }
13971 }),
13972 insert_text_format: Some(InsertTextFormat::SNIPPET),
13973 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13974 lsp::InsertReplaceEdit {
13975 new_text: snippet.body.clone(),
13976 insert: lsp_range,
13977 replace: lsp_range,
13978 },
13979 )),
13980 filter_text: Some(snippet.body.clone()),
13981 sort_text: Some(char::MAX.to_string()),
13982 ..Default::default()
13983 },
13984 confirm: None,
13985 })
13986 })
13987 .collect();
13988
13989 Ok(result)
13990 })
13991}
13992
13993impl CompletionProvider for Model<Project> {
13994 fn completions(
13995 &self,
13996 buffer: &Model<Buffer>,
13997 buffer_position: text::Anchor,
13998 options: CompletionContext,
13999 cx: &mut ViewContext<Editor>,
14000 ) -> Task<Result<Vec<Completion>>> {
14001 self.update(cx, |project, cx| {
14002 let snippets = snippet_completions(project, buffer, buffer_position, cx);
14003 let project_completions = project.completions(buffer, buffer_position, options, cx);
14004 cx.background_executor().spawn(async move {
14005 let mut completions = project_completions.await?;
14006 let snippets_completions = snippets.await?;
14007 completions.extend(snippets_completions);
14008 Ok(completions)
14009 })
14010 })
14011 }
14012
14013 fn resolve_completions(
14014 &self,
14015 buffer: Model<Buffer>,
14016 completion_indices: Vec<usize>,
14017 completions: Arc<RwLock<Box<[Completion]>>>,
14018 cx: &mut ViewContext<Editor>,
14019 ) -> Task<Result<bool>> {
14020 self.update(cx, |project, cx| {
14021 project.resolve_completions(buffer, completion_indices, completions, cx)
14022 })
14023 }
14024
14025 fn apply_additional_edits_for_completion(
14026 &self,
14027 buffer: Model<Buffer>,
14028 completion: Completion,
14029 push_to_history: bool,
14030 cx: &mut ViewContext<Editor>,
14031 ) -> Task<Result<Option<language::Transaction>>> {
14032 self.update(cx, |project, cx| {
14033 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
14034 })
14035 }
14036
14037 fn is_completion_trigger(
14038 &self,
14039 buffer: &Model<Buffer>,
14040 position: language::Anchor,
14041 text: &str,
14042 trigger_in_words: bool,
14043 cx: &mut ViewContext<Editor>,
14044 ) -> bool {
14045 if !EditorSettings::get_global(cx).show_completions_on_input {
14046 return false;
14047 }
14048
14049 let mut chars = text.chars();
14050 let char = if let Some(char) = chars.next() {
14051 char
14052 } else {
14053 return false;
14054 };
14055 if chars.next().is_some() {
14056 return false;
14057 }
14058
14059 let buffer = buffer.read(cx);
14060 let classifier = buffer
14061 .snapshot()
14062 .char_classifier_at(position)
14063 .for_completion(true);
14064 if trigger_in_words && classifier.is_word(char) {
14065 return true;
14066 }
14067
14068 buffer.completion_triggers().contains(text)
14069 }
14070}
14071
14072impl SemanticsProvider for Model<Project> {
14073 fn hover(
14074 &self,
14075 buffer: &Model<Buffer>,
14076 position: text::Anchor,
14077 cx: &mut AppContext,
14078 ) -> Option<Task<Vec<project::Hover>>> {
14079 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
14080 }
14081
14082 fn document_highlights(
14083 &self,
14084 buffer: &Model<Buffer>,
14085 position: text::Anchor,
14086 cx: &mut AppContext,
14087 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
14088 Some(self.update(cx, |project, cx| {
14089 project.document_highlights(buffer, position, cx)
14090 }))
14091 }
14092
14093 fn definitions(
14094 &self,
14095 buffer: &Model<Buffer>,
14096 position: text::Anchor,
14097 kind: GotoDefinitionKind,
14098 cx: &mut AppContext,
14099 ) -> Option<Task<Result<Vec<LocationLink>>>> {
14100 Some(self.update(cx, |project, cx| match kind {
14101 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
14102 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
14103 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
14104 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
14105 }))
14106 }
14107
14108 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
14109 // TODO: make this work for remote projects
14110 self.read(cx)
14111 .language_servers_for_buffer(buffer.read(cx), cx)
14112 .any(
14113 |(_, server)| match server.capabilities().inlay_hint_provider {
14114 Some(lsp::OneOf::Left(enabled)) => enabled,
14115 Some(lsp::OneOf::Right(_)) => true,
14116 None => false,
14117 },
14118 )
14119 }
14120
14121 fn inlay_hints(
14122 &self,
14123 buffer_handle: Model<Buffer>,
14124 range: Range<text::Anchor>,
14125 cx: &mut AppContext,
14126 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
14127 Some(self.update(cx, |project, cx| {
14128 project.inlay_hints(buffer_handle, range, cx)
14129 }))
14130 }
14131
14132 fn resolve_inlay_hint(
14133 &self,
14134 hint: InlayHint,
14135 buffer_handle: Model<Buffer>,
14136 server_id: LanguageServerId,
14137 cx: &mut AppContext,
14138 ) -> Option<Task<anyhow::Result<InlayHint>>> {
14139 Some(self.update(cx, |project, cx| {
14140 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
14141 }))
14142 }
14143
14144 fn range_for_rename(
14145 &self,
14146 buffer: &Model<Buffer>,
14147 position: text::Anchor,
14148 cx: &mut AppContext,
14149 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
14150 Some(self.update(cx, |project, cx| {
14151 project.prepare_rename(buffer.clone(), position, cx)
14152 }))
14153 }
14154
14155 fn perform_rename(
14156 &self,
14157 buffer: &Model<Buffer>,
14158 position: text::Anchor,
14159 new_name: String,
14160 cx: &mut AppContext,
14161 ) -> Option<Task<Result<ProjectTransaction>>> {
14162 Some(self.update(cx, |project, cx| {
14163 project.perform_rename(buffer.clone(), position, new_name, cx)
14164 }))
14165 }
14166}
14167
14168fn inlay_hint_settings(
14169 location: Anchor,
14170 snapshot: &MultiBufferSnapshot,
14171 cx: &mut ViewContext<'_, Editor>,
14172) -> InlayHintSettings {
14173 let file = snapshot.file_at(location);
14174 let language = snapshot.language_at(location).map(|l| l.name());
14175 language_settings(language, file, cx).inlay_hints
14176}
14177
14178fn consume_contiguous_rows(
14179 contiguous_row_selections: &mut Vec<Selection<Point>>,
14180 selection: &Selection<Point>,
14181 display_map: &DisplaySnapshot,
14182 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
14183) -> (MultiBufferRow, MultiBufferRow) {
14184 contiguous_row_selections.push(selection.clone());
14185 let start_row = MultiBufferRow(selection.start.row);
14186 let mut end_row = ending_row(selection, display_map);
14187
14188 while let Some(next_selection) = selections.peek() {
14189 if next_selection.start.row <= end_row.0 {
14190 end_row = ending_row(next_selection, display_map);
14191 contiguous_row_selections.push(selections.next().unwrap().clone());
14192 } else {
14193 break;
14194 }
14195 }
14196 (start_row, end_row)
14197}
14198
14199fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
14200 if next_selection.end.column > 0 || next_selection.is_empty() {
14201 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
14202 } else {
14203 MultiBufferRow(next_selection.end.row)
14204 }
14205}
14206
14207impl EditorSnapshot {
14208 pub fn remote_selections_in_range<'a>(
14209 &'a self,
14210 range: &'a Range<Anchor>,
14211 collaboration_hub: &dyn CollaborationHub,
14212 cx: &'a AppContext,
14213 ) -> impl 'a + Iterator<Item = RemoteSelection> {
14214 let participant_names = collaboration_hub.user_names(cx);
14215 let participant_indices = collaboration_hub.user_participant_indices(cx);
14216 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
14217 let collaborators_by_replica_id = collaborators_by_peer_id
14218 .iter()
14219 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
14220 .collect::<HashMap<_, _>>();
14221 self.buffer_snapshot
14222 .selections_in_range(range, false)
14223 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
14224 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
14225 let participant_index = participant_indices.get(&collaborator.user_id).copied();
14226 let user_name = participant_names.get(&collaborator.user_id).cloned();
14227 Some(RemoteSelection {
14228 replica_id,
14229 selection,
14230 cursor_shape,
14231 line_mode,
14232 participant_index,
14233 peer_id: collaborator.peer_id,
14234 user_name,
14235 })
14236 })
14237 }
14238
14239 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
14240 self.display_snapshot.buffer_snapshot.language_at(position)
14241 }
14242
14243 pub fn is_focused(&self) -> bool {
14244 self.is_focused
14245 }
14246
14247 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14248 self.placeholder_text.as_ref()
14249 }
14250
14251 pub fn scroll_position(&self) -> gpui::Point<f32> {
14252 self.scroll_anchor.scroll_position(&self.display_snapshot)
14253 }
14254
14255 fn gutter_dimensions(
14256 &self,
14257 font_id: FontId,
14258 font_size: Pixels,
14259 em_width: Pixels,
14260 em_advance: Pixels,
14261 max_line_number_width: Pixels,
14262 cx: &AppContext,
14263 ) -> GutterDimensions {
14264 if !self.show_gutter {
14265 return GutterDimensions::default();
14266 }
14267 let descent = cx.text_system().descent(font_id, font_size);
14268
14269 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14270 matches!(
14271 ProjectSettings::get_global(cx).git.git_gutter,
14272 Some(GitGutterSetting::TrackedFiles)
14273 )
14274 });
14275 let gutter_settings = EditorSettings::get_global(cx).gutter;
14276 let show_line_numbers = self
14277 .show_line_numbers
14278 .unwrap_or(gutter_settings.line_numbers);
14279 let line_gutter_width = if show_line_numbers {
14280 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14281 let min_width_for_number_on_gutter = em_advance * 4.0;
14282 max_line_number_width.max(min_width_for_number_on_gutter)
14283 } else {
14284 0.0.into()
14285 };
14286
14287 let show_code_actions = self
14288 .show_code_actions
14289 .unwrap_or(gutter_settings.code_actions);
14290
14291 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14292
14293 let git_blame_entries_width =
14294 self.git_blame_gutter_max_author_length
14295 .map(|max_author_length| {
14296 // Length of the author name, but also space for the commit hash,
14297 // the spacing and the timestamp.
14298 let max_char_count = max_author_length
14299 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14300 + 7 // length of commit sha
14301 + 14 // length of max relative timestamp ("60 minutes ago")
14302 + 4; // gaps and margins
14303
14304 em_advance * max_char_count
14305 });
14306
14307 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14308 left_padding += if show_code_actions || show_runnables {
14309 em_width * 3.0
14310 } else if show_git_gutter && show_line_numbers {
14311 em_width * 2.0
14312 } else if show_git_gutter || show_line_numbers {
14313 em_width
14314 } else {
14315 px(0.)
14316 };
14317
14318 let right_padding = if gutter_settings.folds && show_line_numbers {
14319 em_width * 4.0
14320 } else if gutter_settings.folds {
14321 em_width * 3.0
14322 } else if show_line_numbers {
14323 em_width
14324 } else {
14325 px(0.)
14326 };
14327
14328 GutterDimensions {
14329 left_padding,
14330 right_padding,
14331 width: line_gutter_width + left_padding + right_padding,
14332 margin: -descent,
14333 git_blame_entries_width,
14334 }
14335 }
14336
14337 pub fn render_crease_toggle(
14338 &self,
14339 buffer_row: MultiBufferRow,
14340 row_contains_cursor: bool,
14341 editor: View<Editor>,
14342 cx: &mut WindowContext,
14343 ) -> Option<AnyElement> {
14344 let folded = self.is_line_folded(buffer_row);
14345 let mut is_foldable = false;
14346
14347 if let Some(crease) = self
14348 .crease_snapshot
14349 .query_row(buffer_row, &self.buffer_snapshot)
14350 {
14351 is_foldable = true;
14352 match crease {
14353 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14354 if let Some(render_toggle) = render_toggle {
14355 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14356 if folded {
14357 editor.update(cx, |editor, cx| {
14358 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14359 });
14360 } else {
14361 editor.update(cx, |editor, cx| {
14362 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14363 });
14364 }
14365 });
14366 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14367 }
14368 }
14369 }
14370 }
14371
14372 is_foldable |= self.starts_indent(buffer_row);
14373
14374 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14375 Some(
14376 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14377 .selected(folded)
14378 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14379 if folded {
14380 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14381 } else {
14382 this.fold_at(&FoldAt { buffer_row }, cx);
14383 }
14384 }))
14385 .into_any_element(),
14386 )
14387 } else {
14388 None
14389 }
14390 }
14391
14392 pub fn render_crease_trailer(
14393 &self,
14394 buffer_row: MultiBufferRow,
14395 cx: &mut WindowContext,
14396 ) -> Option<AnyElement> {
14397 let folded = self.is_line_folded(buffer_row);
14398 if let Crease::Inline { render_trailer, .. } = self
14399 .crease_snapshot
14400 .query_row(buffer_row, &self.buffer_snapshot)?
14401 {
14402 let render_trailer = render_trailer.as_ref()?;
14403 Some(render_trailer(buffer_row, folded, cx))
14404 } else {
14405 None
14406 }
14407 }
14408}
14409
14410impl Deref for EditorSnapshot {
14411 type Target = DisplaySnapshot;
14412
14413 fn deref(&self) -> &Self::Target {
14414 &self.display_snapshot
14415 }
14416}
14417
14418#[derive(Clone, Debug, PartialEq, Eq)]
14419pub enum EditorEvent {
14420 InputIgnored {
14421 text: Arc<str>,
14422 },
14423 InputHandled {
14424 utf16_range_to_replace: Option<Range<isize>>,
14425 text: Arc<str>,
14426 },
14427 ExcerptsAdded {
14428 buffer: Model<Buffer>,
14429 predecessor: ExcerptId,
14430 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14431 },
14432 ExcerptsRemoved {
14433 ids: Vec<ExcerptId>,
14434 },
14435 ExcerptsEdited {
14436 ids: Vec<ExcerptId>,
14437 },
14438 ExcerptsExpanded {
14439 ids: Vec<ExcerptId>,
14440 },
14441 BufferEdited,
14442 Edited {
14443 transaction_id: clock::Lamport,
14444 },
14445 Reparsed(BufferId),
14446 Focused,
14447 FocusedIn,
14448 Blurred,
14449 DirtyChanged,
14450 Saved,
14451 TitleChanged,
14452 DiffBaseChanged,
14453 SelectionsChanged {
14454 local: bool,
14455 },
14456 ScrollPositionChanged {
14457 local: bool,
14458 autoscroll: bool,
14459 },
14460 Closed,
14461 TransactionUndone {
14462 transaction_id: clock::Lamport,
14463 },
14464 TransactionBegun {
14465 transaction_id: clock::Lamport,
14466 },
14467 Reloaded,
14468 CursorShapeChanged,
14469}
14470
14471impl EventEmitter<EditorEvent> for Editor {}
14472
14473impl FocusableView for Editor {
14474 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14475 self.focus_handle.clone()
14476 }
14477}
14478
14479impl Render for Editor {
14480 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14481 let settings = ThemeSettings::get_global(cx);
14482
14483 let mut text_style = match self.mode {
14484 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14485 color: cx.theme().colors().editor_foreground,
14486 font_family: settings.ui_font.family.clone(),
14487 font_features: settings.ui_font.features.clone(),
14488 font_fallbacks: settings.ui_font.fallbacks.clone(),
14489 font_size: rems(0.875).into(),
14490 font_weight: settings.ui_font.weight,
14491 line_height: relative(settings.buffer_line_height.value()),
14492 ..Default::default()
14493 },
14494 EditorMode::Full => TextStyle {
14495 color: cx.theme().colors().editor_foreground,
14496 font_family: settings.buffer_font.family.clone(),
14497 font_features: settings.buffer_font.features.clone(),
14498 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14499 font_size: settings.buffer_font_size(cx).into(),
14500 font_weight: settings.buffer_font.weight,
14501 line_height: relative(settings.buffer_line_height.value()),
14502 ..Default::default()
14503 },
14504 };
14505 if let Some(text_style_refinement) = &self.text_style_refinement {
14506 text_style.refine(text_style_refinement)
14507 }
14508
14509 let background = match self.mode {
14510 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14511 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14512 EditorMode::Full => cx.theme().colors().editor_background,
14513 };
14514
14515 EditorElement::new(
14516 cx.view(),
14517 EditorStyle {
14518 background,
14519 local_player: cx.theme().players().local(),
14520 text: text_style,
14521 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14522 syntax: cx.theme().syntax().clone(),
14523 status: cx.theme().status().clone(),
14524 inlay_hints_style: make_inlay_hints_style(cx),
14525 suggestions_style: HighlightStyle {
14526 color: Some(cx.theme().status().predictive),
14527 ..HighlightStyle::default()
14528 },
14529 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14530 },
14531 )
14532 }
14533}
14534
14535impl ViewInputHandler for Editor {
14536 fn text_for_range(
14537 &mut self,
14538 range_utf16: Range<usize>,
14539 adjusted_range: &mut Option<Range<usize>>,
14540 cx: &mut ViewContext<Self>,
14541 ) -> Option<String> {
14542 let snapshot = self.buffer.read(cx).read(cx);
14543 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14544 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14545 if (start.0..end.0) != range_utf16 {
14546 adjusted_range.replace(start.0..end.0);
14547 }
14548 Some(snapshot.text_for_range(start..end).collect())
14549 }
14550
14551 fn selected_text_range(
14552 &mut self,
14553 ignore_disabled_input: bool,
14554 cx: &mut ViewContext<Self>,
14555 ) -> Option<UTF16Selection> {
14556 // Prevent the IME menu from appearing when holding down an alphabetic key
14557 // while input is disabled.
14558 if !ignore_disabled_input && !self.input_enabled {
14559 return None;
14560 }
14561
14562 let selection = self.selections.newest::<OffsetUtf16>(cx);
14563 let range = selection.range();
14564
14565 Some(UTF16Selection {
14566 range: range.start.0..range.end.0,
14567 reversed: selection.reversed,
14568 })
14569 }
14570
14571 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14572 let snapshot = self.buffer.read(cx).read(cx);
14573 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14574 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14575 }
14576
14577 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14578 self.clear_highlights::<InputComposition>(cx);
14579 self.ime_transaction.take();
14580 }
14581
14582 fn replace_text_in_range(
14583 &mut self,
14584 range_utf16: Option<Range<usize>>,
14585 text: &str,
14586 cx: &mut ViewContext<Self>,
14587 ) {
14588 if !self.input_enabled {
14589 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14590 return;
14591 }
14592
14593 self.transact(cx, |this, cx| {
14594 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14595 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14596 Some(this.selection_replacement_ranges(range_utf16, cx))
14597 } else {
14598 this.marked_text_ranges(cx)
14599 };
14600
14601 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14602 let newest_selection_id = this.selections.newest_anchor().id;
14603 this.selections
14604 .all::<OffsetUtf16>(cx)
14605 .iter()
14606 .zip(ranges_to_replace.iter())
14607 .find_map(|(selection, range)| {
14608 if selection.id == newest_selection_id {
14609 Some(
14610 (range.start.0 as isize - selection.head().0 as isize)
14611 ..(range.end.0 as isize - selection.head().0 as isize),
14612 )
14613 } else {
14614 None
14615 }
14616 })
14617 });
14618
14619 cx.emit(EditorEvent::InputHandled {
14620 utf16_range_to_replace: range_to_replace,
14621 text: text.into(),
14622 });
14623
14624 if let Some(new_selected_ranges) = new_selected_ranges {
14625 this.change_selections(None, cx, |selections| {
14626 selections.select_ranges(new_selected_ranges)
14627 });
14628 this.backspace(&Default::default(), cx);
14629 }
14630
14631 this.handle_input(text, cx);
14632 });
14633
14634 if let Some(transaction) = self.ime_transaction {
14635 self.buffer.update(cx, |buffer, cx| {
14636 buffer.group_until_transaction(transaction, cx);
14637 });
14638 }
14639
14640 self.unmark_text(cx);
14641 }
14642
14643 fn replace_and_mark_text_in_range(
14644 &mut self,
14645 range_utf16: Option<Range<usize>>,
14646 text: &str,
14647 new_selected_range_utf16: Option<Range<usize>>,
14648 cx: &mut ViewContext<Self>,
14649 ) {
14650 if !self.input_enabled {
14651 return;
14652 }
14653
14654 let transaction = self.transact(cx, |this, cx| {
14655 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14656 let snapshot = this.buffer.read(cx).read(cx);
14657 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14658 for marked_range in &mut marked_ranges {
14659 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14660 marked_range.start.0 += relative_range_utf16.start;
14661 marked_range.start =
14662 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14663 marked_range.end =
14664 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14665 }
14666 }
14667 Some(marked_ranges)
14668 } else if let Some(range_utf16) = range_utf16 {
14669 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14670 Some(this.selection_replacement_ranges(range_utf16, cx))
14671 } else {
14672 None
14673 };
14674
14675 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14676 let newest_selection_id = this.selections.newest_anchor().id;
14677 this.selections
14678 .all::<OffsetUtf16>(cx)
14679 .iter()
14680 .zip(ranges_to_replace.iter())
14681 .find_map(|(selection, range)| {
14682 if selection.id == newest_selection_id {
14683 Some(
14684 (range.start.0 as isize - selection.head().0 as isize)
14685 ..(range.end.0 as isize - selection.head().0 as isize),
14686 )
14687 } else {
14688 None
14689 }
14690 })
14691 });
14692
14693 cx.emit(EditorEvent::InputHandled {
14694 utf16_range_to_replace: range_to_replace,
14695 text: text.into(),
14696 });
14697
14698 if let Some(ranges) = ranges_to_replace {
14699 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14700 }
14701
14702 let marked_ranges = {
14703 let snapshot = this.buffer.read(cx).read(cx);
14704 this.selections
14705 .disjoint_anchors()
14706 .iter()
14707 .map(|selection| {
14708 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14709 })
14710 .collect::<Vec<_>>()
14711 };
14712
14713 if text.is_empty() {
14714 this.unmark_text(cx);
14715 } else {
14716 this.highlight_text::<InputComposition>(
14717 marked_ranges.clone(),
14718 HighlightStyle {
14719 underline: Some(UnderlineStyle {
14720 thickness: px(1.),
14721 color: None,
14722 wavy: false,
14723 }),
14724 ..Default::default()
14725 },
14726 cx,
14727 );
14728 }
14729
14730 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14731 let use_autoclose = this.use_autoclose;
14732 let use_auto_surround = this.use_auto_surround;
14733 this.set_use_autoclose(false);
14734 this.set_use_auto_surround(false);
14735 this.handle_input(text, cx);
14736 this.set_use_autoclose(use_autoclose);
14737 this.set_use_auto_surround(use_auto_surround);
14738
14739 if let Some(new_selected_range) = new_selected_range_utf16 {
14740 let snapshot = this.buffer.read(cx).read(cx);
14741 let new_selected_ranges = marked_ranges
14742 .into_iter()
14743 .map(|marked_range| {
14744 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14745 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14746 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14747 snapshot.clip_offset_utf16(new_start, Bias::Left)
14748 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14749 })
14750 .collect::<Vec<_>>();
14751
14752 drop(snapshot);
14753 this.change_selections(None, cx, |selections| {
14754 selections.select_ranges(new_selected_ranges)
14755 });
14756 }
14757 });
14758
14759 self.ime_transaction = self.ime_transaction.or(transaction);
14760 if let Some(transaction) = self.ime_transaction {
14761 self.buffer.update(cx, |buffer, cx| {
14762 buffer.group_until_transaction(transaction, cx);
14763 });
14764 }
14765
14766 if self.text_highlights::<InputComposition>(cx).is_none() {
14767 self.ime_transaction.take();
14768 }
14769 }
14770
14771 fn bounds_for_range(
14772 &mut self,
14773 range_utf16: Range<usize>,
14774 element_bounds: gpui::Bounds<Pixels>,
14775 cx: &mut ViewContext<Self>,
14776 ) -> Option<gpui::Bounds<Pixels>> {
14777 let text_layout_details = self.text_layout_details(cx);
14778 let gpui::Point {
14779 x: em_width,
14780 y: line_height,
14781 } = self.character_size(cx);
14782
14783 let snapshot = self.snapshot(cx);
14784 let scroll_position = snapshot.scroll_position();
14785 let scroll_left = scroll_position.x * em_width;
14786
14787 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14788 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14789 + self.gutter_dimensions.width
14790 + self.gutter_dimensions.margin;
14791 let y = line_height * (start.row().as_f32() - scroll_position.y);
14792
14793 Some(Bounds {
14794 origin: element_bounds.origin + point(x, y),
14795 size: size(em_width, line_height),
14796 })
14797 }
14798}
14799
14800trait SelectionExt {
14801 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14802 fn spanned_rows(
14803 &self,
14804 include_end_if_at_line_start: bool,
14805 map: &DisplaySnapshot,
14806 ) -> Range<MultiBufferRow>;
14807}
14808
14809impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14810 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14811 let start = self
14812 .start
14813 .to_point(&map.buffer_snapshot)
14814 .to_display_point(map);
14815 let end = self
14816 .end
14817 .to_point(&map.buffer_snapshot)
14818 .to_display_point(map);
14819 if self.reversed {
14820 end..start
14821 } else {
14822 start..end
14823 }
14824 }
14825
14826 fn spanned_rows(
14827 &self,
14828 include_end_if_at_line_start: bool,
14829 map: &DisplaySnapshot,
14830 ) -> Range<MultiBufferRow> {
14831 let start = self.start.to_point(&map.buffer_snapshot);
14832 let mut end = self.end.to_point(&map.buffer_snapshot);
14833 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14834 end.row -= 1;
14835 }
14836
14837 let buffer_start = map.prev_line_boundary(start).0;
14838 let buffer_end = map.next_line_boundary(end).0;
14839 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14840 }
14841}
14842
14843impl<T: InvalidationRegion> InvalidationStack<T> {
14844 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14845 where
14846 S: Clone + ToOffset,
14847 {
14848 while let Some(region) = self.last() {
14849 let all_selections_inside_invalidation_ranges =
14850 if selections.len() == region.ranges().len() {
14851 selections
14852 .iter()
14853 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14854 .all(|(selection, invalidation_range)| {
14855 let head = selection.head().to_offset(buffer);
14856 invalidation_range.start <= head && invalidation_range.end >= head
14857 })
14858 } else {
14859 false
14860 };
14861
14862 if all_selections_inside_invalidation_ranges {
14863 break;
14864 } else {
14865 self.pop();
14866 }
14867 }
14868 }
14869}
14870
14871impl<T> Default for InvalidationStack<T> {
14872 fn default() -> Self {
14873 Self(Default::default())
14874 }
14875}
14876
14877impl<T> Deref for InvalidationStack<T> {
14878 type Target = Vec<T>;
14879
14880 fn deref(&self) -> &Self::Target {
14881 &self.0
14882 }
14883}
14884
14885impl<T> DerefMut for InvalidationStack<T> {
14886 fn deref_mut(&mut self) -> &mut Self::Target {
14887 &mut self.0
14888 }
14889}
14890
14891impl InvalidationRegion for SnippetState {
14892 fn ranges(&self) -> &[Range<Anchor>] {
14893 &self.ranges[self.active_index]
14894 }
14895}
14896
14897pub fn diagnostic_block_renderer(
14898 diagnostic: Diagnostic,
14899 max_message_rows: Option<u8>,
14900 allow_closing: bool,
14901 _is_valid: bool,
14902) -> RenderBlock {
14903 let (text_without_backticks, code_ranges) =
14904 highlight_diagnostic_message(&diagnostic, max_message_rows);
14905
14906 Arc::new(move |cx: &mut BlockContext| {
14907 let group_id: SharedString = cx.block_id.to_string().into();
14908
14909 let mut text_style = cx.text_style().clone();
14910 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14911 let theme_settings = ThemeSettings::get_global(cx);
14912 text_style.font_family = theme_settings.buffer_font.family.clone();
14913 text_style.font_style = theme_settings.buffer_font.style;
14914 text_style.font_features = theme_settings.buffer_font.features.clone();
14915 text_style.font_weight = theme_settings.buffer_font.weight;
14916
14917 let multi_line_diagnostic = diagnostic.message.contains('\n');
14918
14919 let buttons = |diagnostic: &Diagnostic| {
14920 if multi_line_diagnostic {
14921 v_flex()
14922 } else {
14923 h_flex()
14924 }
14925 .when(allow_closing, |div| {
14926 div.children(diagnostic.is_primary.then(|| {
14927 IconButton::new("close-block", IconName::XCircle)
14928 .icon_color(Color::Muted)
14929 .size(ButtonSize::Compact)
14930 .style(ButtonStyle::Transparent)
14931 .visible_on_hover(group_id.clone())
14932 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14933 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14934 }))
14935 })
14936 .child(
14937 IconButton::new("copy-block", IconName::Copy)
14938 .icon_color(Color::Muted)
14939 .size(ButtonSize::Compact)
14940 .style(ButtonStyle::Transparent)
14941 .visible_on_hover(group_id.clone())
14942 .on_click({
14943 let message = diagnostic.message.clone();
14944 move |_click, cx| {
14945 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14946 }
14947 })
14948 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14949 )
14950 };
14951
14952 let icon_size = buttons(&diagnostic)
14953 .into_any_element()
14954 .layout_as_root(AvailableSpace::min_size(), cx);
14955
14956 h_flex()
14957 .id(cx.block_id)
14958 .group(group_id.clone())
14959 .relative()
14960 .size_full()
14961 .block_mouse_down()
14962 .pl(cx.gutter_dimensions.width)
14963 .w(cx.max_width - cx.gutter_dimensions.full_width())
14964 .child(
14965 div()
14966 .flex()
14967 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14968 .flex_shrink(),
14969 )
14970 .child(buttons(&diagnostic))
14971 .child(div().flex().flex_shrink_0().child(
14972 StyledText::new(text_without_backticks.clone()).with_highlights(
14973 &text_style,
14974 code_ranges.iter().map(|range| {
14975 (
14976 range.clone(),
14977 HighlightStyle {
14978 font_weight: Some(FontWeight::BOLD),
14979 ..Default::default()
14980 },
14981 )
14982 }),
14983 ),
14984 ))
14985 .into_any_element()
14986 })
14987}
14988
14989pub fn highlight_diagnostic_message(
14990 diagnostic: &Diagnostic,
14991 mut max_message_rows: Option<u8>,
14992) -> (SharedString, Vec<Range<usize>>) {
14993 let mut text_without_backticks = String::new();
14994 let mut code_ranges = Vec::new();
14995
14996 if let Some(source) = &diagnostic.source {
14997 text_without_backticks.push_str(source);
14998 code_ranges.push(0..source.len());
14999 text_without_backticks.push_str(": ");
15000 }
15001
15002 let mut prev_offset = 0;
15003 let mut in_code_block = false;
15004 let has_row_limit = max_message_rows.is_some();
15005 let mut newline_indices = diagnostic
15006 .message
15007 .match_indices('\n')
15008 .filter(|_| has_row_limit)
15009 .map(|(ix, _)| ix)
15010 .fuse()
15011 .peekable();
15012
15013 for (quote_ix, _) in diagnostic
15014 .message
15015 .match_indices('`')
15016 .chain([(diagnostic.message.len(), "")])
15017 {
15018 let mut first_newline_ix = None;
15019 let mut last_newline_ix = None;
15020 while let Some(newline_ix) = newline_indices.peek() {
15021 if *newline_ix < quote_ix {
15022 if first_newline_ix.is_none() {
15023 first_newline_ix = Some(*newline_ix);
15024 }
15025 last_newline_ix = Some(*newline_ix);
15026
15027 if let Some(rows_left) = &mut max_message_rows {
15028 if *rows_left == 0 {
15029 break;
15030 } else {
15031 *rows_left -= 1;
15032 }
15033 }
15034 let _ = newline_indices.next();
15035 } else {
15036 break;
15037 }
15038 }
15039 let prev_len = text_without_backticks.len();
15040 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
15041 text_without_backticks.push_str(new_text);
15042 if in_code_block {
15043 code_ranges.push(prev_len..text_without_backticks.len());
15044 }
15045 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
15046 in_code_block = !in_code_block;
15047 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
15048 text_without_backticks.push_str("...");
15049 break;
15050 }
15051 }
15052
15053 (text_without_backticks.into(), code_ranges)
15054}
15055
15056fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
15057 match severity {
15058 DiagnosticSeverity::ERROR => colors.error,
15059 DiagnosticSeverity::WARNING => colors.warning,
15060 DiagnosticSeverity::INFORMATION => colors.info,
15061 DiagnosticSeverity::HINT => colors.info,
15062 _ => colors.ignored,
15063 }
15064}
15065
15066pub fn styled_runs_for_code_label<'a>(
15067 label: &'a CodeLabel,
15068 syntax_theme: &'a theme::SyntaxTheme,
15069) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
15070 let fade_out = HighlightStyle {
15071 fade_out: Some(0.35),
15072 ..Default::default()
15073 };
15074
15075 let mut prev_end = label.filter_range.end;
15076 label
15077 .runs
15078 .iter()
15079 .enumerate()
15080 .flat_map(move |(ix, (range, highlight_id))| {
15081 let style = if let Some(style) = highlight_id.style(syntax_theme) {
15082 style
15083 } else {
15084 return Default::default();
15085 };
15086 let mut muted_style = style;
15087 muted_style.highlight(fade_out);
15088
15089 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
15090 if range.start >= label.filter_range.end {
15091 if range.start > prev_end {
15092 runs.push((prev_end..range.start, fade_out));
15093 }
15094 runs.push((range.clone(), muted_style));
15095 } else if range.end <= label.filter_range.end {
15096 runs.push((range.clone(), style));
15097 } else {
15098 runs.push((range.start..label.filter_range.end, style));
15099 runs.push((label.filter_range.end..range.end, muted_style));
15100 }
15101 prev_end = cmp::max(prev_end, range.end);
15102
15103 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
15104 runs.push((prev_end..label.text.len(), fade_out));
15105 }
15106
15107 runs
15108 })
15109}
15110
15111pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
15112 let mut prev_index = 0;
15113 let mut prev_codepoint: Option<char> = None;
15114 text.char_indices()
15115 .chain([(text.len(), '\0')])
15116 .filter_map(move |(index, codepoint)| {
15117 let prev_codepoint = prev_codepoint.replace(codepoint)?;
15118 let is_boundary = index == text.len()
15119 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
15120 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
15121 if is_boundary {
15122 let chunk = &text[prev_index..index];
15123 prev_index = index;
15124 Some(chunk)
15125 } else {
15126 None
15127 }
15128 })
15129}
15130
15131pub trait RangeToAnchorExt: Sized {
15132 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
15133
15134 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
15135 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
15136 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
15137 }
15138}
15139
15140impl<T: ToOffset> RangeToAnchorExt for Range<T> {
15141 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
15142 let start_offset = self.start.to_offset(snapshot);
15143 let end_offset = self.end.to_offset(snapshot);
15144 if start_offset == end_offset {
15145 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
15146 } else {
15147 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
15148 }
15149 }
15150}
15151
15152pub trait RowExt {
15153 fn as_f32(&self) -> f32;
15154
15155 fn next_row(&self) -> Self;
15156
15157 fn previous_row(&self) -> Self;
15158
15159 fn minus(&self, other: Self) -> u32;
15160}
15161
15162impl RowExt for DisplayRow {
15163 fn as_f32(&self) -> f32 {
15164 self.0 as f32
15165 }
15166
15167 fn next_row(&self) -> Self {
15168 Self(self.0 + 1)
15169 }
15170
15171 fn previous_row(&self) -> Self {
15172 Self(self.0.saturating_sub(1))
15173 }
15174
15175 fn minus(&self, other: Self) -> u32 {
15176 self.0 - other.0
15177 }
15178}
15179
15180impl RowExt for MultiBufferRow {
15181 fn as_f32(&self) -> f32 {
15182 self.0 as f32
15183 }
15184
15185 fn next_row(&self) -> Self {
15186 Self(self.0 + 1)
15187 }
15188
15189 fn previous_row(&self) -> Self {
15190 Self(self.0.saturating_sub(1))
15191 }
15192
15193 fn minus(&self, other: Self) -> u32 {
15194 self.0 - other.0
15195 }
15196}
15197
15198trait RowRangeExt {
15199 type Row;
15200
15201 fn len(&self) -> usize;
15202
15203 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15204}
15205
15206impl RowRangeExt for Range<MultiBufferRow> {
15207 type Row = MultiBufferRow;
15208
15209 fn len(&self) -> usize {
15210 (self.end.0 - self.start.0) as usize
15211 }
15212
15213 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15214 (self.start.0..self.end.0).map(MultiBufferRow)
15215 }
15216}
15217
15218impl RowRangeExt for Range<DisplayRow> {
15219 type Row = DisplayRow;
15220
15221 fn len(&self) -> usize {
15222 (self.end.0 - self.start.0) as usize
15223 }
15224
15225 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15226 (self.start.0..self.end.0).map(DisplayRow)
15227 }
15228}
15229
15230fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15231 if hunk.diff_base_byte_range.is_empty() {
15232 DiffHunkStatus::Added
15233 } else if hunk.row_range.is_empty() {
15234 DiffHunkStatus::Removed
15235 } else {
15236 DiffHunkStatus::Modified
15237 }
15238}
15239
15240/// If select range has more than one line, we
15241/// just point the cursor to range.start.
15242fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15243 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15244 range
15245 } else {
15246 range.start..range.start
15247 }
15248}
15249
15250pub struct KillRing(ClipboardItem);
15251impl Global for KillRing {}
15252
15253const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);