1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behavior.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod clangd_ext;
19mod code_context_menus;
20pub mod display_map;
21mod editor_settings;
22mod editor_settings_controls;
23mod element;
24mod git;
25mod highlight_matching_bracket;
26mod hover_links;
27mod hover_popover;
28mod hunk_diff;
29mod indent_guides;
30mod inlay_hint_cache;
31pub mod items;
32mod linked_editing_ranges;
33mod lsp_ext;
34mod mouse_context_menu;
35pub mod movement;
36mod persistence;
37mod proposed_changes_editor;
38mod rust_analyzer_ext;
39pub mod scroll;
40mod selections_collection;
41pub mod tasks;
42
43#[cfg(test)]
44mod editor_tests;
45#[cfg(test)]
46mod inline_completion_tests;
47mod signature_help;
48#[cfg(any(test, feature = "test-support"))]
49pub mod test;
50
51use ::git::diff::DiffHunkStatus;
52pub(crate) use actions::*;
53pub use actions::{OpenExcerpts, OpenExcerptsSplit};
54use aho_corasick::AhoCorasick;
55use anyhow::{anyhow, Context as _, Result};
56use blink_manager::BlinkManager;
57use client::{Collaborator, ParticipantIndex};
58use clock::ReplicaId;
59use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
60use convert_case::{Case, Casing};
61use display_map::*;
62pub use display_map::{DisplayPoint, FoldPlaceholder};
63pub use editor_settings::{
64 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
65};
66pub use editor_settings_controls::*;
67use element::LineWithInvisibles;
68pub use element::{
69 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
70};
71use futures::{future, FutureExt};
72use fuzzy::StringMatchCandidate;
73
74use code_context_menus::{
75 AvailableCodeAction, CodeActionContents, CodeActionsItem, CodeActionsMenu, CodeContextMenu,
76 CompletionsMenu, ContextMenuOrigin,
77};
78use git::blame::GitBlame;
79use gpui::{
80 div, impl_actions, point, prelude::*, px, relative, size, Action, AnyElement, AppContext,
81 AsyncWindowContext, AvailableSpace, Bounds, ClipboardEntry, ClipboardItem, Context,
82 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent, FocusableView, FontId,
83 FontWeight, Global, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, ModelContext,
84 MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString, Size, Styled, StyledText,
85 Subscription, Task, TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle,
86 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle,
87 WeakView, WindowContext,
88};
89use highlight_matching_bracket::refresh_matching_bracket_highlights;
90use hover_popover::{hide_hover, HoverState};
91pub(crate) use hunk_diff::HoveredHunk;
92use hunk_diff::{diff_hunk_to_display, DiffMap, DiffMapSnapshot};
93use indent_guides::ActiveIndentGuidesState;
94use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
95pub use inline_completion::Direction;
96use inline_completion::{InlineCompletionProvider, InlineCompletionProviderHandle};
97pub use items::MAX_TAB_TITLE_LEN;
98use itertools::Itertools;
99use language::{
100 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
101 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
102 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
103 Point, Selection, SelectionGoal, TransactionId,
104};
105use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
106use linked_editing_ranges::refresh_linked_ranges;
107use mouse_context_menu::MouseContextMenu;
108pub use proposed_changes_editor::{
109 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
110};
111use similar::{ChangeTag, TextDiff};
112use std::iter::Peekable;
113use task::{ResolvedTask, TaskTemplate, TaskVariables};
114
115use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
116pub use lsp::CompletionContext;
117use lsp::{
118 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
119 LanguageServerId, LanguageServerName,
120};
121
122use movement::TextLayoutDetails;
123pub use multi_buffer::{
124 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
125 ToPoint,
126};
127use multi_buffer::{
128 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
129};
130use parking_lot::RwLock;
131use project::{
132 lsp_store::{FormatTarget, FormatTrigger},
133 project_settings::{GitGutterSetting, ProjectSettings},
134 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
135 Project, ProjectItem, ProjectTransaction, TaskSourceKind,
136};
137use rand::prelude::*;
138use rpc::{proto::*, ErrorExt};
139use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
140use selections_collection::{
141 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
142};
143use serde::{Deserialize, Serialize};
144use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
145use smallvec::SmallVec;
146use snippet::Snippet;
147use std::{
148 any::TypeId,
149 borrow::Cow,
150 cell::RefCell,
151 cmp::{self, Ordering, Reverse},
152 mem,
153 num::NonZeroU32,
154 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
155 path::{Path, PathBuf},
156 rc::Rc,
157 sync::Arc,
158 time::{Duration, Instant},
159};
160pub use sum_tree::Bias;
161use sum_tree::TreeMap;
162use text::{BufferId, OffsetUtf16, Rope};
163use theme::{
164 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
165 ThemeColors, ThemeSettings,
166};
167use ui::{
168 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
169 PopoverMenuHandle, Tooltip,
170};
171use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
172use workspace::item::{ItemHandle, PreviewTabsSettings};
173use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
174use workspace::{
175 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
176};
177use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
178
179use crate::hover_links::find_url;
180use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
181
182pub const FILE_HEADER_HEIGHT: u32 = 2;
183pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
184pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
185pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
186const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
187const MAX_LINE_LEN: usize = 1024;
188const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
189const MAX_SELECTION_HISTORY_LEN: usize = 1024;
190pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
191#[doc(hidden)]
192pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
193#[doc(hidden)]
194pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
195
196pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
197pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
198
199pub fn render_parsed_markdown(
200 element_id: impl Into<ElementId>,
201 parsed: &language::ParsedMarkdown,
202 editor_style: &EditorStyle,
203 workspace: Option<WeakView<Workspace>>,
204 cx: &mut WindowContext,
205) -> InteractiveText {
206 let code_span_background_color = cx
207 .theme()
208 .colors()
209 .editor_document_highlight_read_background;
210
211 let highlights = gpui::combine_highlights(
212 parsed.highlights.iter().filter_map(|(range, highlight)| {
213 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
214 Some((range.clone(), highlight))
215 }),
216 parsed
217 .regions
218 .iter()
219 .zip(&parsed.region_ranges)
220 .filter_map(|(region, range)| {
221 if region.code {
222 Some((
223 range.clone(),
224 HighlightStyle {
225 background_color: Some(code_span_background_color),
226 ..Default::default()
227 },
228 ))
229 } else {
230 None
231 }
232 }),
233 );
234
235 let mut links = Vec::new();
236 let mut link_ranges = Vec::new();
237 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
238 if let Some(link) = region.link.clone() {
239 links.push(link);
240 link_ranges.push(range.clone());
241 }
242 }
243
244 InteractiveText::new(
245 element_id,
246 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
247 )
248 .on_click(link_ranges, move |clicked_range_ix, cx| {
249 match &links[clicked_range_ix] {
250 markdown::Link::Web { url } => cx.open_url(url),
251 markdown::Link::Path { path } => {
252 if let Some(workspace) = &workspace {
253 _ = workspace.update(cx, |workspace, cx| {
254 workspace.open_abs_path(path.clone(), false, cx).detach();
255 });
256 }
257 }
258 }
259 })
260}
261
262#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
263pub(crate) enum InlayId {
264 Suggestion(usize),
265 Hint(usize),
266}
267
268impl InlayId {
269 fn id(&self) -> usize {
270 match self {
271 Self::Suggestion(id) => *id,
272 Self::Hint(id) => *id,
273 }
274 }
275}
276
277enum DiffRowHighlight {}
278enum DocumentHighlightRead {}
279enum DocumentHighlightWrite {}
280enum InputComposition {}
281
282#[derive(Debug, Copy, Clone, PartialEq, Eq)]
283pub enum Navigated {
284 Yes,
285 No,
286}
287
288impl Navigated {
289 pub fn from_bool(yes: bool) -> Navigated {
290 if yes {
291 Navigated::Yes
292 } else {
293 Navigated::No
294 }
295 }
296}
297
298pub fn init_settings(cx: &mut AppContext) {
299 EditorSettings::register(cx);
300}
301
302pub fn init(cx: &mut AppContext) {
303 init_settings(cx);
304
305 workspace::register_project_item::<Editor>(cx);
306 workspace::FollowableViewRegistry::register::<Editor>(cx);
307 workspace::register_serializable_item::<Editor>(cx);
308
309 cx.observe_new_views(
310 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
311 workspace.register_action(Editor::new_file);
312 workspace.register_action(Editor::new_file_vertical);
313 workspace.register_action(Editor::new_file_horizontal);
314 },
315 )
316 .detach();
317
318 cx.on_action(move |_: &workspace::NewFile, cx| {
319 let app_state = workspace::AppState::global(cx);
320 if let Some(app_state) = app_state.upgrade() {
321 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
322 Editor::new_file(workspace, &Default::default(), cx)
323 })
324 .detach();
325 }
326 });
327 cx.on_action(move |_: &workspace::NewWindow, cx| {
328 let app_state = workspace::AppState::global(cx);
329 if let Some(app_state) = app_state.upgrade() {
330 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
331 Editor::new_file(workspace, &Default::default(), cx)
332 })
333 .detach();
334 }
335 });
336 git::project_diff::init(cx);
337}
338
339pub struct SearchWithinRange;
340
341trait InvalidationRegion {
342 fn ranges(&self) -> &[Range<Anchor>];
343}
344
345#[derive(Clone, Debug, PartialEq)]
346pub enum SelectPhase {
347 Begin {
348 position: DisplayPoint,
349 add: bool,
350 click_count: usize,
351 },
352 BeginColumnar {
353 position: DisplayPoint,
354 reset: bool,
355 goal_column: u32,
356 },
357 Extend {
358 position: DisplayPoint,
359 click_count: usize,
360 },
361 Update {
362 position: DisplayPoint,
363 goal_column: u32,
364 scroll_delta: gpui::Point<f32>,
365 },
366 End,
367}
368
369#[derive(Clone, Debug)]
370pub enum SelectMode {
371 Character,
372 Word(Range<Anchor>),
373 Line(Range<Anchor>),
374 All,
375}
376
377#[derive(Copy, Clone, PartialEq, Eq, Debug)]
378pub enum EditorMode {
379 SingleLine { auto_width: bool },
380 AutoHeight { max_lines: usize },
381 Full,
382}
383
384#[derive(Copy, Clone, Debug)]
385pub enum SoftWrap {
386 /// Prefer not to wrap at all.
387 ///
388 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
389 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
390 GitDiff,
391 /// Prefer a single line generally, unless an overly long line is encountered.
392 None,
393 /// Soft wrap lines that exceed the editor width.
394 EditorWidth,
395 /// Soft wrap lines at the preferred line length.
396 Column(u32),
397 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
398 Bounded(u32),
399}
400
401#[derive(Clone)]
402pub struct EditorStyle {
403 pub background: Hsla,
404 pub local_player: PlayerColor,
405 pub text: TextStyle,
406 pub scrollbar_width: Pixels,
407 pub syntax: Arc<SyntaxTheme>,
408 pub status: StatusColors,
409 pub inlay_hints_style: HighlightStyle,
410 pub suggestions_style: HighlightStyle,
411 pub unnecessary_code_fade: f32,
412}
413
414impl Default for EditorStyle {
415 fn default() -> Self {
416 Self {
417 background: Hsla::default(),
418 local_player: PlayerColor::default(),
419 text: TextStyle::default(),
420 scrollbar_width: Pixels::default(),
421 syntax: Default::default(),
422 // HACK: Status colors don't have a real default.
423 // We should look into removing the status colors from the editor
424 // style and retrieve them directly from the theme.
425 status: StatusColors::dark(),
426 inlay_hints_style: HighlightStyle::default(),
427 suggestions_style: HighlightStyle::default(),
428 unnecessary_code_fade: Default::default(),
429 }
430 }
431}
432
433pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
434 let show_background = language_settings::language_settings(None, None, cx)
435 .inlay_hints
436 .show_background;
437
438 HighlightStyle {
439 color: Some(cx.theme().status().hint),
440 background_color: show_background.then(|| cx.theme().status().hint_background),
441 ..HighlightStyle::default()
442 }
443}
444
445type CompletionId = usize;
446
447enum InlineCompletion {
448 Edit(Vec<(Range<Anchor>, String)>),
449 Move(Anchor),
450}
451
452struct InlineCompletionState {
453 inlay_ids: Vec<InlayId>,
454 completion: InlineCompletion,
455 invalidation_range: Range<Anchor>,
456}
457
458enum InlineCompletionHighlight {}
459
460#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
461struct EditorActionId(usize);
462
463impl EditorActionId {
464 pub fn post_inc(&mut self) -> Self {
465 let answer = self.0;
466
467 *self = Self(answer + 1);
468
469 Self(answer)
470 }
471}
472
473// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
474// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
475
476type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
477type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
478
479#[derive(Default)]
480struct ScrollbarMarkerState {
481 scrollbar_size: Size<Pixels>,
482 dirty: bool,
483 markers: Arc<[PaintQuad]>,
484 pending_refresh: Option<Task<Result<()>>>,
485}
486
487impl ScrollbarMarkerState {
488 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
489 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
490 }
491}
492
493#[derive(Clone, Debug)]
494struct RunnableTasks {
495 templates: Vec<(TaskSourceKind, TaskTemplate)>,
496 offset: MultiBufferOffset,
497 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
498 column: u32,
499 // Values of all named captures, including those starting with '_'
500 extra_variables: HashMap<String, String>,
501 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
502 context_range: Range<BufferOffset>,
503}
504
505impl RunnableTasks {
506 fn resolve<'a>(
507 &'a self,
508 cx: &'a task::TaskContext,
509 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
510 self.templates.iter().filter_map(|(kind, template)| {
511 template
512 .resolve_task(&kind.to_id_base(), cx)
513 .map(|task| (kind.clone(), task))
514 })
515 }
516}
517
518#[derive(Clone)]
519struct ResolvedTasks {
520 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
521 position: Anchor,
522}
523#[derive(Copy, Clone, Debug)]
524struct MultiBufferOffset(usize);
525#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
526struct BufferOffset(usize);
527
528// Addons allow storing per-editor state in other crates (e.g. Vim)
529pub trait Addon: 'static {
530 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
531
532 fn to_any(&self) -> &dyn std::any::Any;
533}
534
535#[derive(Debug, Copy, Clone, PartialEq, Eq)]
536pub enum IsVimMode {
537 Yes,
538 No,
539}
540
541/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
542///
543/// See the [module level documentation](self) for more information.
544pub struct Editor {
545 focus_handle: FocusHandle,
546 last_focused_descendant: Option<WeakFocusHandle>,
547 /// The text buffer being edited
548 buffer: Model<MultiBuffer>,
549 /// Map of how text in the buffer should be displayed.
550 /// Handles soft wraps, folds, fake inlay text insertions, etc.
551 pub display_map: Model<DisplayMap>,
552 pub selections: SelectionsCollection,
553 pub scroll_manager: ScrollManager,
554 /// When inline assist editors are linked, they all render cursors because
555 /// typing enters text into each of them, even the ones that aren't focused.
556 pub(crate) show_cursor_when_unfocused: bool,
557 columnar_selection_tail: Option<Anchor>,
558 add_selections_state: Option<AddSelectionsState>,
559 select_next_state: Option<SelectNextState>,
560 select_prev_state: Option<SelectNextState>,
561 selection_history: SelectionHistory,
562 autoclose_regions: Vec<AutocloseRegion>,
563 snippet_stack: InvalidationStack<SnippetState>,
564 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
565 ime_transaction: Option<TransactionId>,
566 active_diagnostics: Option<ActiveDiagnosticGroup>,
567 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
568
569 project: Option<Model<Project>>,
570 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
571 completion_provider: Option<Box<dyn CompletionProvider>>,
572 collaboration_hub: Option<Box<dyn CollaborationHub>>,
573 blink_manager: Model<BlinkManager>,
574 show_cursor_names: bool,
575 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
576 pub show_local_selections: bool,
577 mode: EditorMode,
578 show_breadcrumbs: bool,
579 show_gutter: bool,
580 show_line_numbers: Option<bool>,
581 use_relative_line_numbers: Option<bool>,
582 show_git_diff_gutter: Option<bool>,
583 show_code_actions: Option<bool>,
584 show_runnables: Option<bool>,
585 show_wrap_guides: Option<bool>,
586 show_indent_guides: Option<bool>,
587 placeholder_text: Option<Arc<str>>,
588 highlight_order: usize,
589 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
590 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
591 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
592 scrollbar_marker_state: ScrollbarMarkerState,
593 active_indent_guides_state: ActiveIndentGuidesState,
594 nav_history: Option<ItemNavHistory>,
595 context_menu: RwLock<Option<CodeContextMenu>>,
596 mouse_context_menu: Option<MouseContextMenu>,
597 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
598 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
599 signature_help_state: SignatureHelpState,
600 auto_signature_help: Option<bool>,
601 find_all_references_task_sources: Vec<Anchor>,
602 next_completion_id: CompletionId,
603 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
604 code_actions_task: Option<Task<Result<()>>>,
605 document_highlights_task: Option<Task<()>>,
606 linked_editing_range_task: Option<Task<Option<()>>>,
607 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
608 pending_rename: Option<RenameState>,
609 searchable: bool,
610 cursor_shape: CursorShape,
611 current_line_highlight: Option<CurrentLineHighlight>,
612 collapse_matches: bool,
613 autoindent_mode: Option<AutoindentMode>,
614 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
615 input_enabled: bool,
616 use_modal_editing: bool,
617 read_only: bool,
618 leader_peer_id: Option<PeerId>,
619 remote_id: Option<ViewId>,
620 hover_state: HoverState,
621 gutter_hovered: bool,
622 hovered_link_state: Option<HoveredLinkState>,
623 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
624 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
625 active_inline_completion: Option<InlineCompletionState>,
626 // enable_inline_completions is a switch that Vim can use to disable
627 // inline completions based on its mode.
628 enable_inline_completions: bool,
629 show_inline_completions_override: Option<bool>,
630 inlay_hint_cache: InlayHintCache,
631 diff_map: DiffMap,
632 next_inlay_id: usize,
633 _subscriptions: Vec<Subscription>,
634 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
635 gutter_dimensions: GutterDimensions,
636 style: Option<EditorStyle>,
637 text_style_refinement: Option<TextStyleRefinement>,
638 next_editor_action_id: EditorActionId,
639 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
640 use_autoclose: bool,
641 use_auto_surround: bool,
642 auto_replace_emoji_shortcode: bool,
643 show_git_blame_gutter: bool,
644 show_git_blame_inline: bool,
645 show_git_blame_inline_delay_task: Option<Task<()>>,
646 git_blame_inline_enabled: bool,
647 serialize_dirty_buffers: bool,
648 show_selection_menu: Option<bool>,
649 blame: Option<Model<GitBlame>>,
650 blame_subscription: Option<Subscription>,
651 custom_context_menu: Option<
652 Box<
653 dyn 'static
654 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
655 >,
656 >,
657 last_bounds: Option<Bounds<Pixels>>,
658 expect_bounds_change: Option<Bounds<Pixels>>,
659 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
660 tasks_update_task: Option<Task<()>>,
661 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
662 breadcrumb_header: Option<String>,
663 focused_block: Option<FocusedBlock>,
664 next_scroll_position: NextScrollCursorCenterTopBottom,
665 addons: HashMap<TypeId, Box<dyn Addon>>,
666 _scroll_cursor_center_top_bottom_task: Task<()>,
667}
668
669#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
670enum NextScrollCursorCenterTopBottom {
671 #[default]
672 Center,
673 Top,
674 Bottom,
675}
676
677impl NextScrollCursorCenterTopBottom {
678 fn next(&self) -> Self {
679 match self {
680 Self::Center => Self::Top,
681 Self::Top => Self::Bottom,
682 Self::Bottom => Self::Center,
683 }
684 }
685}
686
687#[derive(Clone)]
688pub struct EditorSnapshot {
689 pub mode: EditorMode,
690 show_gutter: bool,
691 show_line_numbers: Option<bool>,
692 show_git_diff_gutter: Option<bool>,
693 show_code_actions: Option<bool>,
694 show_runnables: Option<bool>,
695 git_blame_gutter_max_author_length: Option<usize>,
696 pub display_snapshot: DisplaySnapshot,
697 pub placeholder_text: Option<Arc<str>>,
698 diff_map: DiffMapSnapshot,
699 is_focused: bool,
700 scroll_anchor: ScrollAnchor,
701 ongoing_scroll: OngoingScroll,
702 current_line_highlight: CurrentLineHighlight,
703 gutter_hovered: bool,
704}
705
706const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
707
708#[derive(Default, Debug, Clone, Copy)]
709pub struct GutterDimensions {
710 pub left_padding: Pixels,
711 pub right_padding: Pixels,
712 pub width: Pixels,
713 pub margin: Pixels,
714 pub git_blame_entries_width: Option<Pixels>,
715}
716
717impl GutterDimensions {
718 /// The full width of the space taken up by the gutter.
719 pub fn full_width(&self) -> Pixels {
720 self.margin + self.width
721 }
722
723 /// The width of the space reserved for the fold indicators,
724 /// use alongside 'justify_end' and `gutter_width` to
725 /// right align content with the line numbers
726 pub fn fold_area_width(&self) -> Pixels {
727 self.margin + self.right_padding
728 }
729}
730
731#[derive(Debug)]
732pub struct RemoteSelection {
733 pub replica_id: ReplicaId,
734 pub selection: Selection<Anchor>,
735 pub cursor_shape: CursorShape,
736 pub peer_id: PeerId,
737 pub line_mode: bool,
738 pub participant_index: Option<ParticipantIndex>,
739 pub user_name: Option<SharedString>,
740}
741
742#[derive(Clone, Debug)]
743struct SelectionHistoryEntry {
744 selections: Arc<[Selection<Anchor>]>,
745 select_next_state: Option<SelectNextState>,
746 select_prev_state: Option<SelectNextState>,
747 add_selections_state: Option<AddSelectionsState>,
748}
749
750enum SelectionHistoryMode {
751 Normal,
752 Undoing,
753 Redoing,
754}
755
756#[derive(Clone, PartialEq, Eq, Hash)]
757struct HoveredCursor {
758 replica_id: u16,
759 selection_id: usize,
760}
761
762impl Default for SelectionHistoryMode {
763 fn default() -> Self {
764 Self::Normal
765 }
766}
767
768#[derive(Default)]
769struct SelectionHistory {
770 #[allow(clippy::type_complexity)]
771 selections_by_transaction:
772 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
773 mode: SelectionHistoryMode,
774 undo_stack: VecDeque<SelectionHistoryEntry>,
775 redo_stack: VecDeque<SelectionHistoryEntry>,
776}
777
778impl SelectionHistory {
779 fn insert_transaction(
780 &mut self,
781 transaction_id: TransactionId,
782 selections: Arc<[Selection<Anchor>]>,
783 ) {
784 self.selections_by_transaction
785 .insert(transaction_id, (selections, None));
786 }
787
788 #[allow(clippy::type_complexity)]
789 fn transaction(
790 &self,
791 transaction_id: TransactionId,
792 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
793 self.selections_by_transaction.get(&transaction_id)
794 }
795
796 #[allow(clippy::type_complexity)]
797 fn transaction_mut(
798 &mut self,
799 transaction_id: TransactionId,
800 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
801 self.selections_by_transaction.get_mut(&transaction_id)
802 }
803
804 fn push(&mut self, entry: SelectionHistoryEntry) {
805 if !entry.selections.is_empty() {
806 match self.mode {
807 SelectionHistoryMode::Normal => {
808 self.push_undo(entry);
809 self.redo_stack.clear();
810 }
811 SelectionHistoryMode::Undoing => self.push_redo(entry),
812 SelectionHistoryMode::Redoing => self.push_undo(entry),
813 }
814 }
815 }
816
817 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
818 if self
819 .undo_stack
820 .back()
821 .map_or(true, |e| e.selections != entry.selections)
822 {
823 self.undo_stack.push_back(entry);
824 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
825 self.undo_stack.pop_front();
826 }
827 }
828 }
829
830 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
831 if self
832 .redo_stack
833 .back()
834 .map_or(true, |e| e.selections != entry.selections)
835 {
836 self.redo_stack.push_back(entry);
837 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
838 self.redo_stack.pop_front();
839 }
840 }
841 }
842}
843
844struct RowHighlight {
845 index: usize,
846 range: Range<Anchor>,
847 color: Hsla,
848 should_autoscroll: bool,
849}
850
851#[derive(Clone, Debug)]
852struct AddSelectionsState {
853 above: bool,
854 stack: Vec<usize>,
855}
856
857#[derive(Clone)]
858struct SelectNextState {
859 query: AhoCorasick,
860 wordwise: bool,
861 done: bool,
862}
863
864impl std::fmt::Debug for SelectNextState {
865 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
866 f.debug_struct(std::any::type_name::<Self>())
867 .field("wordwise", &self.wordwise)
868 .field("done", &self.done)
869 .finish()
870 }
871}
872
873#[derive(Debug)]
874struct AutocloseRegion {
875 selection_id: usize,
876 range: Range<Anchor>,
877 pair: BracketPair,
878}
879
880#[derive(Debug)]
881struct SnippetState {
882 ranges: Vec<Vec<Range<Anchor>>>,
883 active_index: usize,
884 choices: Vec<Option<Vec<String>>>,
885}
886
887#[doc(hidden)]
888pub struct RenameState {
889 pub range: Range<Anchor>,
890 pub old_name: Arc<str>,
891 pub editor: View<Editor>,
892 block_id: CustomBlockId,
893}
894
895struct InvalidationStack<T>(Vec<T>);
896
897struct RegisteredInlineCompletionProvider {
898 provider: Arc<dyn InlineCompletionProviderHandle>,
899 _subscription: Subscription,
900}
901
902#[derive(Debug)]
903struct ActiveDiagnosticGroup {
904 primary_range: Range<Anchor>,
905 primary_message: String,
906 group_id: usize,
907 blocks: HashMap<CustomBlockId, Diagnostic>,
908 is_valid: bool,
909}
910
911#[derive(Serialize, Deserialize, Clone, Debug)]
912pub struct ClipboardSelection {
913 pub len: usize,
914 pub is_entire_line: bool,
915 pub first_line_indent: u32,
916}
917
918#[derive(Debug)]
919pub(crate) struct NavigationData {
920 cursor_anchor: Anchor,
921 cursor_position: Point,
922 scroll_anchor: ScrollAnchor,
923 scroll_top_row: u32,
924}
925
926#[derive(Debug, Clone, Copy, PartialEq, Eq)]
927pub enum GotoDefinitionKind {
928 Symbol,
929 Declaration,
930 Type,
931 Implementation,
932}
933
934#[derive(Debug, Clone)]
935enum InlayHintRefreshReason {
936 Toggle(bool),
937 SettingsChange(InlayHintSettings),
938 NewLinesShown,
939 BufferEdited(HashSet<Arc<Language>>),
940 RefreshRequested,
941 ExcerptsRemoved(Vec<ExcerptId>),
942}
943
944impl InlayHintRefreshReason {
945 fn description(&self) -> &'static str {
946 match self {
947 Self::Toggle(_) => "toggle",
948 Self::SettingsChange(_) => "settings change",
949 Self::NewLinesShown => "new lines shown",
950 Self::BufferEdited(_) => "buffer edited",
951 Self::RefreshRequested => "refresh requested",
952 Self::ExcerptsRemoved(_) => "excerpts removed",
953 }
954 }
955}
956
957pub(crate) struct FocusedBlock {
958 id: BlockId,
959 focus_handle: WeakFocusHandle,
960}
961
962#[derive(Clone)]
963struct JumpData {
964 excerpt_id: ExcerptId,
965 position: Point,
966 anchor: text::Anchor,
967 path: Option<project::ProjectPath>,
968 line_offset_from_top: u32,
969}
970
971impl Editor {
972 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
973 let buffer = cx.new_model(|cx| Buffer::local("", cx));
974 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
975 Self::new(
976 EditorMode::SingleLine { auto_width: false },
977 buffer,
978 None,
979 false,
980 cx,
981 )
982 }
983
984 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
985 let buffer = cx.new_model(|cx| Buffer::local("", cx));
986 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
987 Self::new(EditorMode::Full, buffer, None, false, cx)
988 }
989
990 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
991 let buffer = cx.new_model(|cx| Buffer::local("", cx));
992 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
993 Self::new(
994 EditorMode::SingleLine { auto_width: true },
995 buffer,
996 None,
997 false,
998 cx,
999 )
1000 }
1001
1002 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1003 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1004 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1005 Self::new(
1006 EditorMode::AutoHeight { max_lines },
1007 buffer,
1008 None,
1009 false,
1010 cx,
1011 )
1012 }
1013
1014 pub fn for_buffer(
1015 buffer: Model<Buffer>,
1016 project: Option<Model<Project>>,
1017 cx: &mut ViewContext<Self>,
1018 ) -> Self {
1019 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1020 Self::new(EditorMode::Full, buffer, project, false, cx)
1021 }
1022
1023 pub fn for_multibuffer(
1024 buffer: Model<MultiBuffer>,
1025 project: Option<Model<Project>>,
1026 show_excerpt_controls: bool,
1027 cx: &mut ViewContext<Self>,
1028 ) -> Self {
1029 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1030 }
1031
1032 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1033 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1034 let mut clone = Self::new(
1035 self.mode,
1036 self.buffer.clone(),
1037 self.project.clone(),
1038 show_excerpt_controls,
1039 cx,
1040 );
1041 self.display_map.update(cx, |display_map, cx| {
1042 let snapshot = display_map.snapshot(cx);
1043 clone.display_map.update(cx, |display_map, cx| {
1044 display_map.set_state(&snapshot, cx);
1045 });
1046 });
1047 clone.selections.clone_state(&self.selections);
1048 clone.scroll_manager.clone_state(&self.scroll_manager);
1049 clone.searchable = self.searchable;
1050 clone
1051 }
1052
1053 pub fn new(
1054 mode: EditorMode,
1055 buffer: Model<MultiBuffer>,
1056 project: Option<Model<Project>>,
1057 show_excerpt_controls: bool,
1058 cx: &mut ViewContext<Self>,
1059 ) -> Self {
1060 let style = cx.text_style();
1061 let font_size = style.font_size.to_pixels(cx.rem_size());
1062 let editor = cx.view().downgrade();
1063 let fold_placeholder = FoldPlaceholder {
1064 constrain_width: true,
1065 render: Arc::new(move |fold_id, fold_range, cx| {
1066 let editor = editor.clone();
1067 div()
1068 .id(fold_id)
1069 .bg(cx.theme().colors().ghost_element_background)
1070 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1071 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1072 .rounded_sm()
1073 .size_full()
1074 .cursor_pointer()
1075 .child("⋯")
1076 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1077 .on_click(move |_, cx| {
1078 editor
1079 .update(cx, |editor, cx| {
1080 editor.unfold_ranges(
1081 &[fold_range.start..fold_range.end],
1082 true,
1083 false,
1084 cx,
1085 );
1086 cx.stop_propagation();
1087 })
1088 .ok();
1089 })
1090 .into_any()
1091 }),
1092 merge_adjacent: true,
1093 ..Default::default()
1094 };
1095 let display_map = cx.new_model(|cx| {
1096 DisplayMap::new(
1097 buffer.clone(),
1098 style.font(),
1099 font_size,
1100 None,
1101 show_excerpt_controls,
1102 FILE_HEADER_HEIGHT,
1103 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1104 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1105 fold_placeholder,
1106 cx,
1107 )
1108 });
1109
1110 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1111
1112 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1113
1114 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1115 .then(|| language_settings::SoftWrap::None);
1116
1117 let mut project_subscriptions = Vec::new();
1118 if mode == EditorMode::Full {
1119 if let Some(project) = project.as_ref() {
1120 if buffer.read(cx).is_singleton() {
1121 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1122 cx.emit(EditorEvent::TitleChanged);
1123 }));
1124 }
1125 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1126 if let project::Event::RefreshInlayHints = event {
1127 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1128 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1129 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1130 let focus_handle = editor.focus_handle(cx);
1131 if focus_handle.is_focused(cx) {
1132 let snapshot = buffer.read(cx).snapshot();
1133 for (range, snippet) in snippet_edits {
1134 let editor_range =
1135 language::range_from_lsp(*range).to_offset(&snapshot);
1136 editor
1137 .insert_snippet(&[editor_range], snippet.clone(), cx)
1138 .ok();
1139 }
1140 }
1141 }
1142 }
1143 }));
1144 if let Some(task_inventory) = project
1145 .read(cx)
1146 .task_store()
1147 .read(cx)
1148 .task_inventory()
1149 .cloned()
1150 {
1151 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1152 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1153 }));
1154 }
1155 }
1156 }
1157
1158 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1159
1160 let inlay_hint_settings =
1161 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1162 let focus_handle = cx.focus_handle();
1163 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1164 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1165 .detach();
1166 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1167 .detach();
1168 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1169
1170 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1171 Some(false)
1172 } else {
1173 None
1174 };
1175
1176 let mut code_action_providers = Vec::new();
1177 if let Some(project) = project.clone() {
1178 get_unstaged_changes_for_buffers(&project, buffer.read(cx).all_buffers(), cx);
1179 code_action_providers.push(Arc::new(project) as Arc<_>);
1180 }
1181
1182 let mut this = Self {
1183 focus_handle,
1184 show_cursor_when_unfocused: false,
1185 last_focused_descendant: None,
1186 buffer: buffer.clone(),
1187 display_map: display_map.clone(),
1188 selections,
1189 scroll_manager: ScrollManager::new(cx),
1190 columnar_selection_tail: None,
1191 add_selections_state: None,
1192 select_next_state: None,
1193 select_prev_state: None,
1194 selection_history: Default::default(),
1195 autoclose_regions: Default::default(),
1196 snippet_stack: Default::default(),
1197 select_larger_syntax_node_stack: Vec::new(),
1198 ime_transaction: Default::default(),
1199 active_diagnostics: None,
1200 soft_wrap_mode_override,
1201 completion_provider: project.clone().map(|project| Box::new(project) as _),
1202 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1203 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1204 project,
1205 blink_manager: blink_manager.clone(),
1206 show_local_selections: true,
1207 mode,
1208 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1209 show_gutter: mode == EditorMode::Full,
1210 show_line_numbers: None,
1211 use_relative_line_numbers: None,
1212 show_git_diff_gutter: None,
1213 show_code_actions: None,
1214 show_runnables: None,
1215 show_wrap_guides: None,
1216 show_indent_guides,
1217 placeholder_text: None,
1218 highlight_order: 0,
1219 highlighted_rows: HashMap::default(),
1220 background_highlights: Default::default(),
1221 gutter_highlights: TreeMap::default(),
1222 scrollbar_marker_state: ScrollbarMarkerState::default(),
1223 active_indent_guides_state: ActiveIndentGuidesState::default(),
1224 nav_history: None,
1225 context_menu: RwLock::new(None),
1226 mouse_context_menu: None,
1227 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1228 completion_tasks: Default::default(),
1229 signature_help_state: SignatureHelpState::default(),
1230 auto_signature_help: None,
1231 find_all_references_task_sources: Vec::new(),
1232 next_completion_id: 0,
1233 next_inlay_id: 0,
1234 code_action_providers,
1235 available_code_actions: Default::default(),
1236 code_actions_task: Default::default(),
1237 document_highlights_task: Default::default(),
1238 linked_editing_range_task: Default::default(),
1239 pending_rename: Default::default(),
1240 searchable: true,
1241 cursor_shape: EditorSettings::get_global(cx)
1242 .cursor_shape
1243 .unwrap_or_default(),
1244 current_line_highlight: None,
1245 autoindent_mode: Some(AutoindentMode::EachLine),
1246 collapse_matches: false,
1247 workspace: None,
1248 input_enabled: true,
1249 use_modal_editing: mode == EditorMode::Full,
1250 read_only: false,
1251 use_autoclose: true,
1252 use_auto_surround: true,
1253 auto_replace_emoji_shortcode: false,
1254 leader_peer_id: None,
1255 remote_id: None,
1256 hover_state: Default::default(),
1257 hovered_link_state: Default::default(),
1258 inline_completion_provider: None,
1259 active_inline_completion: None,
1260 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1261 diff_map: DiffMap::default(),
1262 gutter_hovered: false,
1263 pixel_position_of_newest_cursor: None,
1264 last_bounds: None,
1265 expect_bounds_change: None,
1266 gutter_dimensions: GutterDimensions::default(),
1267 style: None,
1268 show_cursor_names: false,
1269 hovered_cursors: Default::default(),
1270 next_editor_action_id: EditorActionId::default(),
1271 editor_actions: Rc::default(),
1272 show_inline_completions_override: None,
1273 enable_inline_completions: true,
1274 custom_context_menu: None,
1275 show_git_blame_gutter: false,
1276 show_git_blame_inline: false,
1277 show_selection_menu: None,
1278 show_git_blame_inline_delay_task: None,
1279 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1280 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1281 .session
1282 .restore_unsaved_buffers,
1283 blame: None,
1284 blame_subscription: None,
1285 tasks: Default::default(),
1286 _subscriptions: vec![
1287 cx.observe(&buffer, Self::on_buffer_changed),
1288 cx.subscribe(&buffer, Self::on_buffer_event),
1289 cx.observe(&display_map, Self::on_display_map_changed),
1290 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1291 cx.observe_global::<SettingsStore>(Self::settings_changed),
1292 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1293 cx.observe_window_activation(|editor, cx| {
1294 let active = cx.is_window_active();
1295 editor.blink_manager.update(cx, |blink_manager, cx| {
1296 if active {
1297 blink_manager.enable(cx);
1298 } else {
1299 blink_manager.disable(cx);
1300 }
1301 });
1302 }),
1303 ],
1304 tasks_update_task: None,
1305 linked_edit_ranges: Default::default(),
1306 previous_search_ranges: None,
1307 breadcrumb_header: None,
1308 focused_block: None,
1309 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1310 addons: HashMap::default(),
1311 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1312 text_style_refinement: None,
1313 };
1314 this.tasks_update_task = Some(this.refresh_runnables(cx));
1315 this._subscriptions.extend(project_subscriptions);
1316
1317 this.end_selection(cx);
1318 this.scroll_manager.show_scrollbar(cx);
1319
1320 if mode == EditorMode::Full {
1321 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1322 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1323
1324 if this.git_blame_inline_enabled {
1325 this.git_blame_inline_enabled = true;
1326 this.start_git_blame_inline(false, cx);
1327 }
1328 }
1329
1330 this.report_editor_event("open", None, cx);
1331 this
1332 }
1333
1334 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1335 self.mouse_context_menu
1336 .as_ref()
1337 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1338 }
1339
1340 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1341 let mut key_context = KeyContext::new_with_defaults();
1342 key_context.add("Editor");
1343 let mode = match self.mode {
1344 EditorMode::SingleLine { .. } => "single_line",
1345 EditorMode::AutoHeight { .. } => "auto_height",
1346 EditorMode::Full => "full",
1347 };
1348
1349 if EditorSettings::jupyter_enabled(cx) {
1350 key_context.add("jupyter");
1351 }
1352
1353 key_context.set("mode", mode);
1354 if self.pending_rename.is_some() {
1355 key_context.add("renaming");
1356 }
1357 if self.context_menu_visible() {
1358 match self.context_menu.read().as_ref() {
1359 Some(CodeContextMenu::Completions(_)) => {
1360 key_context.add("menu");
1361 key_context.add("showing_completions")
1362 }
1363 Some(CodeContextMenu::CodeActions(_)) => {
1364 key_context.add("menu");
1365 key_context.add("showing_code_actions")
1366 }
1367 None => {}
1368 }
1369 }
1370
1371 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1372 if !self.focus_handle(cx).contains_focused(cx)
1373 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
1374 {
1375 for addon in self.addons.values() {
1376 addon.extend_key_context(&mut key_context, cx)
1377 }
1378 }
1379
1380 if let Some(extension) = self
1381 .buffer
1382 .read(cx)
1383 .as_singleton()
1384 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1385 {
1386 key_context.set("extension", extension.to_string());
1387 }
1388
1389 if self.has_active_inline_completion() {
1390 key_context.add("copilot_suggestion");
1391 key_context.add("inline_completion");
1392 }
1393
1394 key_context
1395 }
1396
1397 pub fn new_file(
1398 workspace: &mut Workspace,
1399 _: &workspace::NewFile,
1400 cx: &mut ViewContext<Workspace>,
1401 ) {
1402 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1403 "Failed to create buffer",
1404 cx,
1405 |e, _| match e.error_code() {
1406 ErrorCode::RemoteUpgradeRequired => Some(format!(
1407 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1408 e.error_tag("required").unwrap_or("the latest version")
1409 )),
1410 _ => None,
1411 },
1412 );
1413 }
1414
1415 pub fn new_in_workspace(
1416 workspace: &mut Workspace,
1417 cx: &mut ViewContext<Workspace>,
1418 ) -> Task<Result<View<Editor>>> {
1419 let project = workspace.project().clone();
1420 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1421
1422 cx.spawn(|workspace, mut cx| async move {
1423 let buffer = create.await?;
1424 workspace.update(&mut cx, |workspace, cx| {
1425 let editor =
1426 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
1427 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
1428 editor
1429 })
1430 })
1431 }
1432
1433 fn new_file_vertical(
1434 workspace: &mut Workspace,
1435 _: &workspace::NewFileSplitVertical,
1436 cx: &mut ViewContext<Workspace>,
1437 ) {
1438 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
1439 }
1440
1441 fn new_file_horizontal(
1442 workspace: &mut Workspace,
1443 _: &workspace::NewFileSplitHorizontal,
1444 cx: &mut ViewContext<Workspace>,
1445 ) {
1446 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
1447 }
1448
1449 fn new_file_in_direction(
1450 workspace: &mut Workspace,
1451 direction: SplitDirection,
1452 cx: &mut ViewContext<Workspace>,
1453 ) {
1454 let project = workspace.project().clone();
1455 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1456
1457 cx.spawn(|workspace, mut cx| async move {
1458 let buffer = create.await?;
1459 workspace.update(&mut cx, move |workspace, cx| {
1460 workspace.split_item(
1461 direction,
1462 Box::new(
1463 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1464 ),
1465 cx,
1466 )
1467 })?;
1468 anyhow::Ok(())
1469 })
1470 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1471 ErrorCode::RemoteUpgradeRequired => Some(format!(
1472 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1473 e.error_tag("required").unwrap_or("the latest version")
1474 )),
1475 _ => None,
1476 });
1477 }
1478
1479 pub fn leader_peer_id(&self) -> Option<PeerId> {
1480 self.leader_peer_id
1481 }
1482
1483 pub fn buffer(&self) -> &Model<MultiBuffer> {
1484 &self.buffer
1485 }
1486
1487 pub fn workspace(&self) -> Option<View<Workspace>> {
1488 self.workspace.as_ref()?.0.upgrade()
1489 }
1490
1491 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1492 self.buffer().read(cx).title(cx)
1493 }
1494
1495 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1496 let git_blame_gutter_max_author_length = self
1497 .render_git_blame_gutter(cx)
1498 .then(|| {
1499 if let Some(blame) = self.blame.as_ref() {
1500 let max_author_length =
1501 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1502 Some(max_author_length)
1503 } else {
1504 None
1505 }
1506 })
1507 .flatten();
1508
1509 EditorSnapshot {
1510 mode: self.mode,
1511 show_gutter: self.show_gutter,
1512 show_line_numbers: self.show_line_numbers,
1513 show_git_diff_gutter: self.show_git_diff_gutter,
1514 show_code_actions: self.show_code_actions,
1515 show_runnables: self.show_runnables,
1516 git_blame_gutter_max_author_length,
1517 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1518 scroll_anchor: self.scroll_manager.anchor(),
1519 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1520 placeholder_text: self.placeholder_text.clone(),
1521 diff_map: self.diff_map.snapshot(),
1522 is_focused: self.focus_handle.is_focused(cx),
1523 current_line_highlight: self
1524 .current_line_highlight
1525 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1526 gutter_hovered: self.gutter_hovered,
1527 }
1528 }
1529
1530 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1531 self.buffer.read(cx).language_at(point, cx)
1532 }
1533
1534 pub fn file_at<T: ToOffset>(
1535 &self,
1536 point: T,
1537 cx: &AppContext,
1538 ) -> Option<Arc<dyn language::File>> {
1539 self.buffer.read(cx).read(cx).file_at(point).cloned()
1540 }
1541
1542 pub fn active_excerpt(
1543 &self,
1544 cx: &AppContext,
1545 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1546 self.buffer
1547 .read(cx)
1548 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1549 }
1550
1551 pub fn mode(&self) -> EditorMode {
1552 self.mode
1553 }
1554
1555 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1556 self.collaboration_hub.as_deref()
1557 }
1558
1559 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1560 self.collaboration_hub = Some(hub);
1561 }
1562
1563 pub fn set_custom_context_menu(
1564 &mut self,
1565 f: impl 'static
1566 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1567 ) {
1568 self.custom_context_menu = Some(Box::new(f))
1569 }
1570
1571 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1572 self.completion_provider = provider;
1573 }
1574
1575 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1576 self.semantics_provider.clone()
1577 }
1578
1579 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1580 self.semantics_provider = provider;
1581 }
1582
1583 pub fn set_inline_completion_provider<T>(
1584 &mut self,
1585 provider: Option<Model<T>>,
1586 cx: &mut ViewContext<Self>,
1587 ) where
1588 T: InlineCompletionProvider,
1589 {
1590 self.inline_completion_provider =
1591 provider.map(|provider| RegisteredInlineCompletionProvider {
1592 _subscription: cx.observe(&provider, |this, _, cx| {
1593 if this.focus_handle.is_focused(cx) {
1594 this.update_visible_inline_completion(cx);
1595 }
1596 }),
1597 provider: Arc::new(provider),
1598 });
1599 self.refresh_inline_completion(false, false, cx);
1600 }
1601
1602 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
1603 self.placeholder_text.as_deref()
1604 }
1605
1606 pub fn set_placeholder_text(
1607 &mut self,
1608 placeholder_text: impl Into<Arc<str>>,
1609 cx: &mut ViewContext<Self>,
1610 ) {
1611 let placeholder_text = Some(placeholder_text.into());
1612 if self.placeholder_text != placeholder_text {
1613 self.placeholder_text = placeholder_text;
1614 cx.notify();
1615 }
1616 }
1617
1618 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1619 self.cursor_shape = cursor_shape;
1620
1621 // Disrupt blink for immediate user feedback that the cursor shape has changed
1622 self.blink_manager.update(cx, BlinkManager::show_cursor);
1623
1624 cx.notify();
1625 }
1626
1627 pub fn set_current_line_highlight(
1628 &mut self,
1629 current_line_highlight: Option<CurrentLineHighlight>,
1630 ) {
1631 self.current_line_highlight = current_line_highlight;
1632 }
1633
1634 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1635 self.collapse_matches = collapse_matches;
1636 }
1637
1638 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1639 if self.collapse_matches {
1640 return range.start..range.start;
1641 }
1642 range.clone()
1643 }
1644
1645 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1646 if self.display_map.read(cx).clip_at_line_ends != clip {
1647 self.display_map
1648 .update(cx, |map, _| map.clip_at_line_ends = clip);
1649 }
1650 }
1651
1652 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1653 self.input_enabled = input_enabled;
1654 }
1655
1656 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
1657 self.enable_inline_completions = enabled;
1658 }
1659
1660 pub fn set_autoindent(&mut self, autoindent: bool) {
1661 if autoindent {
1662 self.autoindent_mode = Some(AutoindentMode::EachLine);
1663 } else {
1664 self.autoindent_mode = None;
1665 }
1666 }
1667
1668 pub fn read_only(&self, cx: &AppContext) -> bool {
1669 self.read_only || self.buffer.read(cx).read_only()
1670 }
1671
1672 pub fn set_read_only(&mut self, read_only: bool) {
1673 self.read_only = read_only;
1674 }
1675
1676 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1677 self.use_autoclose = autoclose;
1678 }
1679
1680 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1681 self.use_auto_surround = auto_surround;
1682 }
1683
1684 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1685 self.auto_replace_emoji_shortcode = auto_replace;
1686 }
1687
1688 pub fn toggle_inline_completions(
1689 &mut self,
1690 _: &ToggleInlineCompletions,
1691 cx: &mut ViewContext<Self>,
1692 ) {
1693 if self.show_inline_completions_override.is_some() {
1694 self.set_show_inline_completions(None, cx);
1695 } else {
1696 let cursor = self.selections.newest_anchor().head();
1697 if let Some((buffer, cursor_buffer_position)) =
1698 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1699 {
1700 let show_inline_completions =
1701 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
1702 self.set_show_inline_completions(Some(show_inline_completions), cx);
1703 }
1704 }
1705 }
1706
1707 pub fn set_show_inline_completions(
1708 &mut self,
1709 show_inline_completions: Option<bool>,
1710 cx: &mut ViewContext<Self>,
1711 ) {
1712 self.show_inline_completions_override = show_inline_completions;
1713 self.refresh_inline_completion(false, true, cx);
1714 }
1715
1716 fn should_show_inline_completions(
1717 &self,
1718 buffer: &Model<Buffer>,
1719 buffer_position: language::Anchor,
1720 cx: &AppContext,
1721 ) -> bool {
1722 if !self.snippet_stack.is_empty() {
1723 return false;
1724 }
1725
1726 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1727 return false;
1728 }
1729
1730 if let Some(provider) = self.inline_completion_provider() {
1731 if let Some(show_inline_completions) = self.show_inline_completions_override {
1732 show_inline_completions
1733 } else {
1734 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1735 }
1736 } else {
1737 false
1738 }
1739 }
1740
1741 fn inline_completions_disabled_in_scope(
1742 &self,
1743 buffer: &Model<Buffer>,
1744 buffer_position: language::Anchor,
1745 cx: &AppContext,
1746 ) -> bool {
1747 let snapshot = buffer.read(cx).snapshot();
1748 let settings = snapshot.settings_at(buffer_position, cx);
1749
1750 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1751 return false;
1752 };
1753
1754 scope.override_name().map_or(false, |scope_name| {
1755 settings
1756 .inline_completions_disabled_in
1757 .iter()
1758 .any(|s| s == scope_name)
1759 })
1760 }
1761
1762 pub fn set_use_modal_editing(&mut self, to: bool) {
1763 self.use_modal_editing = to;
1764 }
1765
1766 pub fn use_modal_editing(&self) -> bool {
1767 self.use_modal_editing
1768 }
1769
1770 fn selections_did_change(
1771 &mut self,
1772 local: bool,
1773 old_cursor_position: &Anchor,
1774 show_completions: bool,
1775 cx: &mut ViewContext<Self>,
1776 ) {
1777 cx.invalidate_character_coordinates();
1778
1779 // Copy selections to primary selection buffer
1780 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1781 if local {
1782 let selections = self.selections.all::<usize>(cx);
1783 let buffer_handle = self.buffer.read(cx).read(cx);
1784
1785 let mut text = String::new();
1786 for (index, selection) in selections.iter().enumerate() {
1787 let text_for_selection = buffer_handle
1788 .text_for_range(selection.start..selection.end)
1789 .collect::<String>();
1790
1791 text.push_str(&text_for_selection);
1792 if index != selections.len() - 1 {
1793 text.push('\n');
1794 }
1795 }
1796
1797 if !text.is_empty() {
1798 cx.write_to_primary(ClipboardItem::new_string(text));
1799 }
1800 }
1801
1802 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1803 self.buffer.update(cx, |buffer, cx| {
1804 buffer.set_active_selections(
1805 &self.selections.disjoint_anchors(),
1806 self.selections.line_mode,
1807 self.cursor_shape,
1808 cx,
1809 )
1810 });
1811 }
1812 let display_map = self
1813 .display_map
1814 .update(cx, |display_map, cx| display_map.snapshot(cx));
1815 let buffer = &display_map.buffer_snapshot;
1816 self.add_selections_state = None;
1817 self.select_next_state = None;
1818 self.select_prev_state = None;
1819 self.select_larger_syntax_node_stack.clear();
1820 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1821 self.snippet_stack
1822 .invalidate(&self.selections.disjoint_anchors(), buffer);
1823 self.take_rename(false, cx);
1824
1825 let new_cursor_position = self.selections.newest_anchor().head();
1826
1827 self.push_to_nav_history(
1828 *old_cursor_position,
1829 Some(new_cursor_position.to_point(buffer)),
1830 cx,
1831 );
1832
1833 if local {
1834 let new_cursor_position = self.selections.newest_anchor().head();
1835 let mut context_menu = self.context_menu.write();
1836 let completion_menu = match context_menu.as_ref() {
1837 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1838
1839 _ => {
1840 *context_menu = None;
1841 None
1842 }
1843 };
1844
1845 if let Some(completion_menu) = completion_menu {
1846 let cursor_position = new_cursor_position.to_offset(buffer);
1847 let (word_range, kind) =
1848 buffer.surrounding_word(completion_menu.initial_position, true);
1849 if kind == Some(CharKind::Word)
1850 && word_range.to_inclusive().contains(&cursor_position)
1851 {
1852 let mut completion_menu = completion_menu.clone();
1853 drop(context_menu);
1854
1855 let query = Self::completion_query(buffer, cursor_position);
1856 cx.spawn(move |this, mut cx| async move {
1857 completion_menu
1858 .filter(query.as_deref(), cx.background_executor().clone())
1859 .await;
1860
1861 this.update(&mut cx, |this, cx| {
1862 let mut context_menu = this.context_menu.write();
1863 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1864 else {
1865 return;
1866 };
1867
1868 if menu.id > completion_menu.id {
1869 return;
1870 }
1871
1872 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1873 drop(context_menu);
1874 cx.notify();
1875 })
1876 })
1877 .detach();
1878
1879 if show_completions {
1880 self.show_completions(&ShowCompletions { trigger: None }, cx);
1881 }
1882 } else {
1883 drop(context_menu);
1884 self.hide_context_menu(cx);
1885 }
1886 } else {
1887 drop(context_menu);
1888 }
1889
1890 hide_hover(self, cx);
1891
1892 if old_cursor_position.to_display_point(&display_map).row()
1893 != new_cursor_position.to_display_point(&display_map).row()
1894 {
1895 self.available_code_actions.take();
1896 }
1897 self.refresh_code_actions(cx);
1898 self.refresh_document_highlights(cx);
1899 refresh_matching_bracket_highlights(self, cx);
1900 self.update_visible_inline_completion(cx);
1901 linked_editing_ranges::refresh_linked_ranges(self, cx);
1902 if self.git_blame_inline_enabled {
1903 self.start_inline_blame_timer(cx);
1904 }
1905 }
1906
1907 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1908 cx.emit(EditorEvent::SelectionsChanged { local });
1909
1910 if self.selections.disjoint_anchors().len() == 1 {
1911 cx.emit(SearchEvent::ActiveMatchChanged)
1912 }
1913 cx.notify();
1914 }
1915
1916 pub fn change_selections<R>(
1917 &mut self,
1918 autoscroll: Option<Autoscroll>,
1919 cx: &mut ViewContext<Self>,
1920 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1921 ) -> R {
1922 self.change_selections_inner(autoscroll, true, cx, change)
1923 }
1924
1925 pub fn change_selections_inner<R>(
1926 &mut self,
1927 autoscroll: Option<Autoscroll>,
1928 request_completions: bool,
1929 cx: &mut ViewContext<Self>,
1930 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1931 ) -> R {
1932 let old_cursor_position = self.selections.newest_anchor().head();
1933 self.push_to_selection_history();
1934
1935 let (changed, result) = self.selections.change_with(cx, change);
1936
1937 if changed {
1938 if let Some(autoscroll) = autoscroll {
1939 self.request_autoscroll(autoscroll, cx);
1940 }
1941 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
1942
1943 if self.should_open_signature_help_automatically(
1944 &old_cursor_position,
1945 self.signature_help_state.backspace_pressed(),
1946 cx,
1947 ) {
1948 self.show_signature_help(&ShowSignatureHelp, cx);
1949 }
1950 self.signature_help_state.set_backspace_pressed(false);
1951 }
1952
1953 result
1954 }
1955
1956 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1957 where
1958 I: IntoIterator<Item = (Range<S>, T)>,
1959 S: ToOffset,
1960 T: Into<Arc<str>>,
1961 {
1962 if self.read_only(cx) {
1963 return;
1964 }
1965
1966 self.buffer
1967 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
1968 }
1969
1970 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1971 where
1972 I: IntoIterator<Item = (Range<S>, T)>,
1973 S: ToOffset,
1974 T: Into<Arc<str>>,
1975 {
1976 if self.read_only(cx) {
1977 return;
1978 }
1979
1980 self.buffer.update(cx, |buffer, cx| {
1981 buffer.edit(edits, self.autoindent_mode.clone(), cx)
1982 });
1983 }
1984
1985 pub fn edit_with_block_indent<I, S, T>(
1986 &mut self,
1987 edits: I,
1988 original_indent_columns: Vec<u32>,
1989 cx: &mut ViewContext<Self>,
1990 ) where
1991 I: IntoIterator<Item = (Range<S>, T)>,
1992 S: ToOffset,
1993 T: Into<Arc<str>>,
1994 {
1995 if self.read_only(cx) {
1996 return;
1997 }
1998
1999 self.buffer.update(cx, |buffer, cx| {
2000 buffer.edit(
2001 edits,
2002 Some(AutoindentMode::Block {
2003 original_indent_columns,
2004 }),
2005 cx,
2006 )
2007 });
2008 }
2009
2010 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2011 self.hide_context_menu(cx);
2012
2013 match phase {
2014 SelectPhase::Begin {
2015 position,
2016 add,
2017 click_count,
2018 } => self.begin_selection(position, add, click_count, cx),
2019 SelectPhase::BeginColumnar {
2020 position,
2021 goal_column,
2022 reset,
2023 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2024 SelectPhase::Extend {
2025 position,
2026 click_count,
2027 } => self.extend_selection(position, click_count, cx),
2028 SelectPhase::Update {
2029 position,
2030 goal_column,
2031 scroll_delta,
2032 } => self.update_selection(position, goal_column, scroll_delta, cx),
2033 SelectPhase::End => self.end_selection(cx),
2034 }
2035 }
2036
2037 fn extend_selection(
2038 &mut self,
2039 position: DisplayPoint,
2040 click_count: usize,
2041 cx: &mut ViewContext<Self>,
2042 ) {
2043 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2044 let tail = self.selections.newest::<usize>(cx).tail();
2045 self.begin_selection(position, false, click_count, cx);
2046
2047 let position = position.to_offset(&display_map, Bias::Left);
2048 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2049
2050 let mut pending_selection = self
2051 .selections
2052 .pending_anchor()
2053 .expect("extend_selection not called with pending selection");
2054 if position >= tail {
2055 pending_selection.start = tail_anchor;
2056 } else {
2057 pending_selection.end = tail_anchor;
2058 pending_selection.reversed = true;
2059 }
2060
2061 let mut pending_mode = self.selections.pending_mode().unwrap();
2062 match &mut pending_mode {
2063 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2064 _ => {}
2065 }
2066
2067 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2068 s.set_pending(pending_selection, pending_mode)
2069 });
2070 }
2071
2072 fn begin_selection(
2073 &mut self,
2074 position: DisplayPoint,
2075 add: bool,
2076 click_count: usize,
2077 cx: &mut ViewContext<Self>,
2078 ) {
2079 if !self.focus_handle.is_focused(cx) {
2080 self.last_focused_descendant = None;
2081 cx.focus(&self.focus_handle);
2082 }
2083
2084 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2085 let buffer = &display_map.buffer_snapshot;
2086 let newest_selection = self.selections.newest_anchor().clone();
2087 let position = display_map.clip_point(position, Bias::Left);
2088
2089 let start;
2090 let end;
2091 let mode;
2092 let mut auto_scroll;
2093 match click_count {
2094 1 => {
2095 start = buffer.anchor_before(position.to_point(&display_map));
2096 end = start;
2097 mode = SelectMode::Character;
2098 auto_scroll = true;
2099 }
2100 2 => {
2101 let range = movement::surrounding_word(&display_map, position);
2102 start = buffer.anchor_before(range.start.to_point(&display_map));
2103 end = buffer.anchor_before(range.end.to_point(&display_map));
2104 mode = SelectMode::Word(start..end);
2105 auto_scroll = true;
2106 }
2107 3 => {
2108 let position = display_map
2109 .clip_point(position, Bias::Left)
2110 .to_point(&display_map);
2111 let line_start = display_map.prev_line_boundary(position).0;
2112 let next_line_start = buffer.clip_point(
2113 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2114 Bias::Left,
2115 );
2116 start = buffer.anchor_before(line_start);
2117 end = buffer.anchor_before(next_line_start);
2118 mode = SelectMode::Line(start..end);
2119 auto_scroll = true;
2120 }
2121 _ => {
2122 start = buffer.anchor_before(0);
2123 end = buffer.anchor_before(buffer.len());
2124 mode = SelectMode::All;
2125 auto_scroll = false;
2126 }
2127 }
2128 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2129
2130 let point_to_delete: Option<usize> = {
2131 let selected_points: Vec<Selection<Point>> =
2132 self.selections.disjoint_in_range(start..end, cx);
2133
2134 if !add || click_count > 1 {
2135 None
2136 } else if !selected_points.is_empty() {
2137 Some(selected_points[0].id)
2138 } else {
2139 let clicked_point_already_selected =
2140 self.selections.disjoint.iter().find(|selection| {
2141 selection.start.to_point(buffer) == start.to_point(buffer)
2142 || selection.end.to_point(buffer) == end.to_point(buffer)
2143 });
2144
2145 clicked_point_already_selected.map(|selection| selection.id)
2146 }
2147 };
2148
2149 let selections_count = self.selections.count();
2150
2151 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2152 if let Some(point_to_delete) = point_to_delete {
2153 s.delete(point_to_delete);
2154
2155 if selections_count == 1 {
2156 s.set_pending_anchor_range(start..end, mode);
2157 }
2158 } else {
2159 if !add {
2160 s.clear_disjoint();
2161 } else if click_count > 1 {
2162 s.delete(newest_selection.id)
2163 }
2164
2165 s.set_pending_anchor_range(start..end, mode);
2166 }
2167 });
2168 }
2169
2170 fn begin_columnar_selection(
2171 &mut self,
2172 position: DisplayPoint,
2173 goal_column: u32,
2174 reset: bool,
2175 cx: &mut ViewContext<Self>,
2176 ) {
2177 if !self.focus_handle.is_focused(cx) {
2178 self.last_focused_descendant = None;
2179 cx.focus(&self.focus_handle);
2180 }
2181
2182 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2183
2184 if reset {
2185 let pointer_position = display_map
2186 .buffer_snapshot
2187 .anchor_before(position.to_point(&display_map));
2188
2189 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2190 s.clear_disjoint();
2191 s.set_pending_anchor_range(
2192 pointer_position..pointer_position,
2193 SelectMode::Character,
2194 );
2195 });
2196 }
2197
2198 let tail = self.selections.newest::<Point>(cx).tail();
2199 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2200
2201 if !reset {
2202 self.select_columns(
2203 tail.to_display_point(&display_map),
2204 position,
2205 goal_column,
2206 &display_map,
2207 cx,
2208 );
2209 }
2210 }
2211
2212 fn update_selection(
2213 &mut self,
2214 position: DisplayPoint,
2215 goal_column: u32,
2216 scroll_delta: gpui::Point<f32>,
2217 cx: &mut ViewContext<Self>,
2218 ) {
2219 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2220
2221 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2222 let tail = tail.to_display_point(&display_map);
2223 self.select_columns(tail, position, goal_column, &display_map, cx);
2224 } else if let Some(mut pending) = self.selections.pending_anchor() {
2225 let buffer = self.buffer.read(cx).snapshot(cx);
2226 let head;
2227 let tail;
2228 let mode = self.selections.pending_mode().unwrap();
2229 match &mode {
2230 SelectMode::Character => {
2231 head = position.to_point(&display_map);
2232 tail = pending.tail().to_point(&buffer);
2233 }
2234 SelectMode::Word(original_range) => {
2235 let original_display_range = original_range.start.to_display_point(&display_map)
2236 ..original_range.end.to_display_point(&display_map);
2237 let original_buffer_range = original_display_range.start.to_point(&display_map)
2238 ..original_display_range.end.to_point(&display_map);
2239 if movement::is_inside_word(&display_map, position)
2240 || original_display_range.contains(&position)
2241 {
2242 let word_range = movement::surrounding_word(&display_map, position);
2243 if word_range.start < original_display_range.start {
2244 head = word_range.start.to_point(&display_map);
2245 } else {
2246 head = word_range.end.to_point(&display_map);
2247 }
2248 } else {
2249 head = position.to_point(&display_map);
2250 }
2251
2252 if head <= original_buffer_range.start {
2253 tail = original_buffer_range.end;
2254 } else {
2255 tail = original_buffer_range.start;
2256 }
2257 }
2258 SelectMode::Line(original_range) => {
2259 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2260
2261 let position = display_map
2262 .clip_point(position, Bias::Left)
2263 .to_point(&display_map);
2264 let line_start = display_map.prev_line_boundary(position).0;
2265 let next_line_start = buffer.clip_point(
2266 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2267 Bias::Left,
2268 );
2269
2270 if line_start < original_range.start {
2271 head = line_start
2272 } else {
2273 head = next_line_start
2274 }
2275
2276 if head <= original_range.start {
2277 tail = original_range.end;
2278 } else {
2279 tail = original_range.start;
2280 }
2281 }
2282 SelectMode::All => {
2283 return;
2284 }
2285 };
2286
2287 if head < tail {
2288 pending.start = buffer.anchor_before(head);
2289 pending.end = buffer.anchor_before(tail);
2290 pending.reversed = true;
2291 } else {
2292 pending.start = buffer.anchor_before(tail);
2293 pending.end = buffer.anchor_before(head);
2294 pending.reversed = false;
2295 }
2296
2297 self.change_selections(None, cx, |s| {
2298 s.set_pending(pending, mode);
2299 });
2300 } else {
2301 log::error!("update_selection dispatched with no pending selection");
2302 return;
2303 }
2304
2305 self.apply_scroll_delta(scroll_delta, cx);
2306 cx.notify();
2307 }
2308
2309 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2310 self.columnar_selection_tail.take();
2311 if self.selections.pending_anchor().is_some() {
2312 let selections = self.selections.all::<usize>(cx);
2313 self.change_selections(None, cx, |s| {
2314 s.select(selections);
2315 s.clear_pending();
2316 });
2317 }
2318 }
2319
2320 fn select_columns(
2321 &mut self,
2322 tail: DisplayPoint,
2323 head: DisplayPoint,
2324 goal_column: u32,
2325 display_map: &DisplaySnapshot,
2326 cx: &mut ViewContext<Self>,
2327 ) {
2328 let start_row = cmp::min(tail.row(), head.row());
2329 let end_row = cmp::max(tail.row(), head.row());
2330 let start_column = cmp::min(tail.column(), goal_column);
2331 let end_column = cmp::max(tail.column(), goal_column);
2332 let reversed = start_column < tail.column();
2333
2334 let selection_ranges = (start_row.0..=end_row.0)
2335 .map(DisplayRow)
2336 .filter_map(|row| {
2337 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2338 let start = display_map
2339 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2340 .to_point(display_map);
2341 let end = display_map
2342 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2343 .to_point(display_map);
2344 if reversed {
2345 Some(end..start)
2346 } else {
2347 Some(start..end)
2348 }
2349 } else {
2350 None
2351 }
2352 })
2353 .collect::<Vec<_>>();
2354
2355 self.change_selections(None, cx, |s| {
2356 s.select_ranges(selection_ranges);
2357 });
2358 cx.notify();
2359 }
2360
2361 pub fn has_pending_nonempty_selection(&self) -> bool {
2362 let pending_nonempty_selection = match self.selections.pending_anchor() {
2363 Some(Selection { start, end, .. }) => start != end,
2364 None => false,
2365 };
2366
2367 pending_nonempty_selection
2368 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2369 }
2370
2371 pub fn has_pending_selection(&self) -> bool {
2372 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2373 }
2374
2375 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2376 if self.clear_expanded_diff_hunks(cx) {
2377 cx.notify();
2378 return;
2379 }
2380 if self.dismiss_menus_and_popups(true, cx) {
2381 return;
2382 }
2383
2384 if self.mode == EditorMode::Full
2385 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2386 {
2387 return;
2388 }
2389
2390 cx.propagate();
2391 }
2392
2393 pub fn dismiss_menus_and_popups(
2394 &mut self,
2395 should_report_inline_completion_event: bool,
2396 cx: &mut ViewContext<Self>,
2397 ) -> bool {
2398 if self.take_rename(false, cx).is_some() {
2399 return true;
2400 }
2401
2402 if hide_hover(self, cx) {
2403 return true;
2404 }
2405
2406 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2407 return true;
2408 }
2409
2410 if self.hide_context_menu(cx).is_some() {
2411 return true;
2412 }
2413
2414 if self.mouse_context_menu.take().is_some() {
2415 return true;
2416 }
2417
2418 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2419 return true;
2420 }
2421
2422 if self.snippet_stack.pop().is_some() {
2423 return true;
2424 }
2425
2426 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2427 self.dismiss_diagnostics(cx);
2428 return true;
2429 }
2430
2431 false
2432 }
2433
2434 fn linked_editing_ranges_for(
2435 &self,
2436 selection: Range<text::Anchor>,
2437 cx: &AppContext,
2438 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2439 if self.linked_edit_ranges.is_empty() {
2440 return None;
2441 }
2442 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2443 selection.end.buffer_id.and_then(|end_buffer_id| {
2444 if selection.start.buffer_id != Some(end_buffer_id) {
2445 return None;
2446 }
2447 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2448 let snapshot = buffer.read(cx).snapshot();
2449 self.linked_edit_ranges
2450 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2451 .map(|ranges| (ranges, snapshot, buffer))
2452 })?;
2453 use text::ToOffset as TO;
2454 // find offset from the start of current range to current cursor position
2455 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2456
2457 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2458 let start_difference = start_offset - start_byte_offset;
2459 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2460 let end_difference = end_offset - start_byte_offset;
2461 // Current range has associated linked ranges.
2462 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2463 for range in linked_ranges.iter() {
2464 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2465 let end_offset = start_offset + end_difference;
2466 let start_offset = start_offset + start_difference;
2467 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2468 continue;
2469 }
2470 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
2471 if s.start.buffer_id != selection.start.buffer_id
2472 || s.end.buffer_id != selection.end.buffer_id
2473 {
2474 return false;
2475 }
2476 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2477 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2478 }) {
2479 continue;
2480 }
2481 let start = buffer_snapshot.anchor_after(start_offset);
2482 let end = buffer_snapshot.anchor_after(end_offset);
2483 linked_edits
2484 .entry(buffer.clone())
2485 .or_default()
2486 .push(start..end);
2487 }
2488 Some(linked_edits)
2489 }
2490
2491 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2492 let text: Arc<str> = text.into();
2493
2494 if self.read_only(cx) {
2495 return;
2496 }
2497
2498 let selections = self.selections.all_adjusted(cx);
2499 let mut bracket_inserted = false;
2500 let mut edits = Vec::new();
2501 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2502 let mut new_selections = Vec::with_capacity(selections.len());
2503 let mut new_autoclose_regions = Vec::new();
2504 let snapshot = self.buffer.read(cx).read(cx);
2505
2506 for (selection, autoclose_region) in
2507 self.selections_with_autoclose_regions(selections, &snapshot)
2508 {
2509 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2510 // Determine if the inserted text matches the opening or closing
2511 // bracket of any of this language's bracket pairs.
2512 let mut bracket_pair = None;
2513 let mut is_bracket_pair_start = false;
2514 let mut is_bracket_pair_end = false;
2515 if !text.is_empty() {
2516 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2517 // and they are removing the character that triggered IME popup.
2518 for (pair, enabled) in scope.brackets() {
2519 if !pair.close && !pair.surround {
2520 continue;
2521 }
2522
2523 if enabled && pair.start.ends_with(text.as_ref()) {
2524 let prefix_len = pair.start.len() - text.len();
2525 let preceding_text_matches_prefix = prefix_len == 0
2526 || (selection.start.column >= (prefix_len as u32)
2527 && snapshot.contains_str_at(
2528 Point::new(
2529 selection.start.row,
2530 selection.start.column - (prefix_len as u32),
2531 ),
2532 &pair.start[..prefix_len],
2533 ));
2534 if preceding_text_matches_prefix {
2535 bracket_pair = Some(pair.clone());
2536 is_bracket_pair_start = true;
2537 break;
2538 }
2539 }
2540 if pair.end.as_str() == text.as_ref() {
2541 bracket_pair = Some(pair.clone());
2542 is_bracket_pair_end = true;
2543 break;
2544 }
2545 }
2546 }
2547
2548 if let Some(bracket_pair) = bracket_pair {
2549 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2550 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2551 let auto_surround =
2552 self.use_auto_surround && snapshot_settings.use_auto_surround;
2553 if selection.is_empty() {
2554 if is_bracket_pair_start {
2555 // If the inserted text is a suffix of an opening bracket and the
2556 // selection is preceded by the rest of the opening bracket, then
2557 // insert the closing bracket.
2558 let following_text_allows_autoclose = snapshot
2559 .chars_at(selection.start)
2560 .next()
2561 .map_or(true, |c| scope.should_autoclose_before(c));
2562
2563 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2564 && bracket_pair.start.len() == 1
2565 {
2566 let target = bracket_pair.start.chars().next().unwrap();
2567 let current_line_count = snapshot
2568 .reversed_chars_at(selection.start)
2569 .take_while(|&c| c != '\n')
2570 .filter(|&c| c == target)
2571 .count();
2572 current_line_count % 2 == 1
2573 } else {
2574 false
2575 };
2576
2577 if autoclose
2578 && bracket_pair.close
2579 && following_text_allows_autoclose
2580 && !is_closing_quote
2581 {
2582 let anchor = snapshot.anchor_before(selection.end);
2583 new_selections.push((selection.map(|_| anchor), text.len()));
2584 new_autoclose_regions.push((
2585 anchor,
2586 text.len(),
2587 selection.id,
2588 bracket_pair.clone(),
2589 ));
2590 edits.push((
2591 selection.range(),
2592 format!("{}{}", text, bracket_pair.end).into(),
2593 ));
2594 bracket_inserted = true;
2595 continue;
2596 }
2597 }
2598
2599 if let Some(region) = autoclose_region {
2600 // If the selection is followed by an auto-inserted closing bracket,
2601 // then don't insert that closing bracket again; just move the selection
2602 // past the closing bracket.
2603 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2604 && text.as_ref() == region.pair.end.as_str();
2605 if should_skip {
2606 let anchor = snapshot.anchor_after(selection.end);
2607 new_selections
2608 .push((selection.map(|_| anchor), region.pair.end.len()));
2609 continue;
2610 }
2611 }
2612
2613 let always_treat_brackets_as_autoclosed = snapshot
2614 .settings_at(selection.start, cx)
2615 .always_treat_brackets_as_autoclosed;
2616 if always_treat_brackets_as_autoclosed
2617 && is_bracket_pair_end
2618 && snapshot.contains_str_at(selection.end, text.as_ref())
2619 {
2620 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2621 // and the inserted text is a closing bracket and the selection is followed
2622 // by the closing bracket then move the selection past the closing bracket.
2623 let anchor = snapshot.anchor_after(selection.end);
2624 new_selections.push((selection.map(|_| anchor), text.len()));
2625 continue;
2626 }
2627 }
2628 // If an opening bracket is 1 character long and is typed while
2629 // text is selected, then surround that text with the bracket pair.
2630 else if auto_surround
2631 && bracket_pair.surround
2632 && is_bracket_pair_start
2633 && bracket_pair.start.chars().count() == 1
2634 {
2635 edits.push((selection.start..selection.start, text.clone()));
2636 edits.push((
2637 selection.end..selection.end,
2638 bracket_pair.end.as_str().into(),
2639 ));
2640 bracket_inserted = true;
2641 new_selections.push((
2642 Selection {
2643 id: selection.id,
2644 start: snapshot.anchor_after(selection.start),
2645 end: snapshot.anchor_before(selection.end),
2646 reversed: selection.reversed,
2647 goal: selection.goal,
2648 },
2649 0,
2650 ));
2651 continue;
2652 }
2653 }
2654 }
2655
2656 if self.auto_replace_emoji_shortcode
2657 && selection.is_empty()
2658 && text.as_ref().ends_with(':')
2659 {
2660 if let Some(possible_emoji_short_code) =
2661 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2662 {
2663 if !possible_emoji_short_code.is_empty() {
2664 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2665 let emoji_shortcode_start = Point::new(
2666 selection.start.row,
2667 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2668 );
2669
2670 // Remove shortcode from buffer
2671 edits.push((
2672 emoji_shortcode_start..selection.start,
2673 "".to_string().into(),
2674 ));
2675 new_selections.push((
2676 Selection {
2677 id: selection.id,
2678 start: snapshot.anchor_after(emoji_shortcode_start),
2679 end: snapshot.anchor_before(selection.start),
2680 reversed: selection.reversed,
2681 goal: selection.goal,
2682 },
2683 0,
2684 ));
2685
2686 // Insert emoji
2687 let selection_start_anchor = snapshot.anchor_after(selection.start);
2688 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2689 edits.push((selection.start..selection.end, emoji.to_string().into()));
2690
2691 continue;
2692 }
2693 }
2694 }
2695 }
2696
2697 // If not handling any auto-close operation, then just replace the selected
2698 // text with the given input and move the selection to the end of the
2699 // newly inserted text.
2700 let anchor = snapshot.anchor_after(selection.end);
2701 if !self.linked_edit_ranges.is_empty() {
2702 let start_anchor = snapshot.anchor_before(selection.start);
2703
2704 let is_word_char = text.chars().next().map_or(true, |char| {
2705 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2706 classifier.is_word(char)
2707 });
2708
2709 if is_word_char {
2710 if let Some(ranges) = self
2711 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2712 {
2713 for (buffer, edits) in ranges {
2714 linked_edits
2715 .entry(buffer.clone())
2716 .or_default()
2717 .extend(edits.into_iter().map(|range| (range, text.clone())));
2718 }
2719 }
2720 }
2721 }
2722
2723 new_selections.push((selection.map(|_| anchor), 0));
2724 edits.push((selection.start..selection.end, text.clone()));
2725 }
2726
2727 drop(snapshot);
2728
2729 self.transact(cx, |this, cx| {
2730 this.buffer.update(cx, |buffer, cx| {
2731 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2732 });
2733 for (buffer, edits) in linked_edits {
2734 buffer.update(cx, |buffer, cx| {
2735 let snapshot = buffer.snapshot();
2736 let edits = edits
2737 .into_iter()
2738 .map(|(range, text)| {
2739 use text::ToPoint as TP;
2740 let end_point = TP::to_point(&range.end, &snapshot);
2741 let start_point = TP::to_point(&range.start, &snapshot);
2742 (start_point..end_point, text)
2743 })
2744 .sorted_by_key(|(range, _)| range.start)
2745 .collect::<Vec<_>>();
2746 buffer.edit(edits, None, cx);
2747 })
2748 }
2749 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2750 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2751 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2752 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2753 .zip(new_selection_deltas)
2754 .map(|(selection, delta)| Selection {
2755 id: selection.id,
2756 start: selection.start + delta,
2757 end: selection.end + delta,
2758 reversed: selection.reversed,
2759 goal: SelectionGoal::None,
2760 })
2761 .collect::<Vec<_>>();
2762
2763 let mut i = 0;
2764 for (position, delta, selection_id, pair) in new_autoclose_regions {
2765 let position = position.to_offset(&map.buffer_snapshot) + delta;
2766 let start = map.buffer_snapshot.anchor_before(position);
2767 let end = map.buffer_snapshot.anchor_after(position);
2768 while let Some(existing_state) = this.autoclose_regions.get(i) {
2769 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2770 Ordering::Less => i += 1,
2771 Ordering::Greater => break,
2772 Ordering::Equal => {
2773 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2774 Ordering::Less => i += 1,
2775 Ordering::Equal => break,
2776 Ordering::Greater => break,
2777 }
2778 }
2779 }
2780 }
2781 this.autoclose_regions.insert(
2782 i,
2783 AutocloseRegion {
2784 selection_id,
2785 range: start..end,
2786 pair,
2787 },
2788 );
2789 }
2790
2791 let had_active_inline_completion = this.has_active_inline_completion();
2792 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2793 s.select(new_selections)
2794 });
2795
2796 if !bracket_inserted {
2797 if let Some(on_type_format_task) =
2798 this.trigger_on_type_formatting(text.to_string(), cx)
2799 {
2800 on_type_format_task.detach_and_log_err(cx);
2801 }
2802 }
2803
2804 let editor_settings = EditorSettings::get_global(cx);
2805 if bracket_inserted
2806 && (editor_settings.auto_signature_help
2807 || editor_settings.show_signature_help_after_edits)
2808 {
2809 this.show_signature_help(&ShowSignatureHelp, cx);
2810 }
2811
2812 let trigger_in_words = !had_active_inline_completion;
2813 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2814 linked_editing_ranges::refresh_linked_ranges(this, cx);
2815 this.refresh_inline_completion(true, false, cx);
2816 });
2817 }
2818
2819 fn find_possible_emoji_shortcode_at_position(
2820 snapshot: &MultiBufferSnapshot,
2821 position: Point,
2822 ) -> Option<String> {
2823 let mut chars = Vec::new();
2824 let mut found_colon = false;
2825 for char in snapshot.reversed_chars_at(position).take(100) {
2826 // Found a possible emoji shortcode in the middle of the buffer
2827 if found_colon {
2828 if char.is_whitespace() {
2829 chars.reverse();
2830 return Some(chars.iter().collect());
2831 }
2832 // If the previous character is not a whitespace, we are in the middle of a word
2833 // and we only want to complete the shortcode if the word is made up of other emojis
2834 let mut containing_word = String::new();
2835 for ch in snapshot
2836 .reversed_chars_at(position)
2837 .skip(chars.len() + 1)
2838 .take(100)
2839 {
2840 if ch.is_whitespace() {
2841 break;
2842 }
2843 containing_word.push(ch);
2844 }
2845 let containing_word = containing_word.chars().rev().collect::<String>();
2846 if util::word_consists_of_emojis(containing_word.as_str()) {
2847 chars.reverse();
2848 return Some(chars.iter().collect());
2849 }
2850 }
2851
2852 if char.is_whitespace() || !char.is_ascii() {
2853 return None;
2854 }
2855 if char == ':' {
2856 found_colon = true;
2857 } else {
2858 chars.push(char);
2859 }
2860 }
2861 // Found a possible emoji shortcode at the beginning of the buffer
2862 chars.reverse();
2863 Some(chars.iter().collect())
2864 }
2865
2866 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2867 self.transact(cx, |this, cx| {
2868 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2869 let selections = this.selections.all::<usize>(cx);
2870 let multi_buffer = this.buffer.read(cx);
2871 let buffer = multi_buffer.snapshot(cx);
2872 selections
2873 .iter()
2874 .map(|selection| {
2875 let start_point = selection.start.to_point(&buffer);
2876 let mut indent =
2877 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2878 indent.len = cmp::min(indent.len, start_point.column);
2879 let start = selection.start;
2880 let end = selection.end;
2881 let selection_is_empty = start == end;
2882 let language_scope = buffer.language_scope_at(start);
2883 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2884 &language_scope
2885 {
2886 let leading_whitespace_len = buffer
2887 .reversed_chars_at(start)
2888 .take_while(|c| c.is_whitespace() && *c != '\n')
2889 .map(|c| c.len_utf8())
2890 .sum::<usize>();
2891
2892 let trailing_whitespace_len = buffer
2893 .chars_at(end)
2894 .take_while(|c| c.is_whitespace() && *c != '\n')
2895 .map(|c| c.len_utf8())
2896 .sum::<usize>();
2897
2898 let insert_extra_newline =
2899 language.brackets().any(|(pair, enabled)| {
2900 let pair_start = pair.start.trim_end();
2901 let pair_end = pair.end.trim_start();
2902
2903 enabled
2904 && pair.newline
2905 && buffer.contains_str_at(
2906 end + trailing_whitespace_len,
2907 pair_end,
2908 )
2909 && buffer.contains_str_at(
2910 (start - leading_whitespace_len)
2911 .saturating_sub(pair_start.len()),
2912 pair_start,
2913 )
2914 });
2915
2916 // Comment extension on newline is allowed only for cursor selections
2917 let comment_delimiter = maybe!({
2918 if !selection_is_empty {
2919 return None;
2920 }
2921
2922 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
2923 return None;
2924 }
2925
2926 let delimiters = language.line_comment_prefixes();
2927 let max_len_of_delimiter =
2928 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2929 let (snapshot, range) =
2930 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
2931
2932 let mut index_of_first_non_whitespace = 0;
2933 let comment_candidate = snapshot
2934 .chars_for_range(range)
2935 .skip_while(|c| {
2936 let should_skip = c.is_whitespace();
2937 if should_skip {
2938 index_of_first_non_whitespace += 1;
2939 }
2940 should_skip
2941 })
2942 .take(max_len_of_delimiter)
2943 .collect::<String>();
2944 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2945 comment_candidate.starts_with(comment_prefix.as_ref())
2946 })?;
2947 let cursor_is_placed_after_comment_marker =
2948 index_of_first_non_whitespace + comment_prefix.len()
2949 <= start_point.column as usize;
2950 if cursor_is_placed_after_comment_marker {
2951 Some(comment_prefix.clone())
2952 } else {
2953 None
2954 }
2955 });
2956 (comment_delimiter, insert_extra_newline)
2957 } else {
2958 (None, false)
2959 };
2960
2961 let capacity_for_delimiter = comment_delimiter
2962 .as_deref()
2963 .map(str::len)
2964 .unwrap_or_default();
2965 let mut new_text =
2966 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2967 new_text.push('\n');
2968 new_text.extend(indent.chars());
2969 if let Some(delimiter) = &comment_delimiter {
2970 new_text.push_str(delimiter);
2971 }
2972 if insert_extra_newline {
2973 new_text = new_text.repeat(2);
2974 }
2975
2976 let anchor = buffer.anchor_after(end);
2977 let new_selection = selection.map(|_| anchor);
2978 (
2979 (start..end, new_text),
2980 (insert_extra_newline, new_selection),
2981 )
2982 })
2983 .unzip()
2984 };
2985
2986 this.edit_with_autoindent(edits, cx);
2987 let buffer = this.buffer.read(cx).snapshot(cx);
2988 let new_selections = selection_fixup_info
2989 .into_iter()
2990 .map(|(extra_newline_inserted, new_selection)| {
2991 let mut cursor = new_selection.end.to_point(&buffer);
2992 if extra_newline_inserted {
2993 cursor.row -= 1;
2994 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
2995 }
2996 new_selection.map(|_| cursor)
2997 })
2998 .collect();
2999
3000 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3001 this.refresh_inline_completion(true, false, cx);
3002 });
3003 }
3004
3005 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3006 let buffer = self.buffer.read(cx);
3007 let snapshot = buffer.snapshot(cx);
3008
3009 let mut edits = Vec::new();
3010 let mut rows = Vec::new();
3011
3012 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3013 let cursor = selection.head();
3014 let row = cursor.row;
3015
3016 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3017
3018 let newline = "\n".to_string();
3019 edits.push((start_of_line..start_of_line, newline));
3020
3021 rows.push(row + rows_inserted as u32);
3022 }
3023
3024 self.transact(cx, |editor, cx| {
3025 editor.edit(edits, cx);
3026
3027 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3028 let mut index = 0;
3029 s.move_cursors_with(|map, _, _| {
3030 let row = rows[index];
3031 index += 1;
3032
3033 let point = Point::new(row, 0);
3034 let boundary = map.next_line_boundary(point).1;
3035 let clipped = map.clip_point(boundary, Bias::Left);
3036
3037 (clipped, SelectionGoal::None)
3038 });
3039 });
3040
3041 let mut indent_edits = Vec::new();
3042 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3043 for row in rows {
3044 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3045 for (row, indent) in indents {
3046 if indent.len == 0 {
3047 continue;
3048 }
3049
3050 let text = match indent.kind {
3051 IndentKind::Space => " ".repeat(indent.len as usize),
3052 IndentKind::Tab => "\t".repeat(indent.len as usize),
3053 };
3054 let point = Point::new(row.0, 0);
3055 indent_edits.push((point..point, text));
3056 }
3057 }
3058 editor.edit(indent_edits, cx);
3059 });
3060 }
3061
3062 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3063 let buffer = self.buffer.read(cx);
3064 let snapshot = buffer.snapshot(cx);
3065
3066 let mut edits = Vec::new();
3067 let mut rows = Vec::new();
3068 let mut rows_inserted = 0;
3069
3070 for selection in self.selections.all_adjusted(cx) {
3071 let cursor = selection.head();
3072 let row = cursor.row;
3073
3074 let point = Point::new(row + 1, 0);
3075 let start_of_line = snapshot.clip_point(point, Bias::Left);
3076
3077 let newline = "\n".to_string();
3078 edits.push((start_of_line..start_of_line, newline));
3079
3080 rows_inserted += 1;
3081 rows.push(row + rows_inserted);
3082 }
3083
3084 self.transact(cx, |editor, cx| {
3085 editor.edit(edits, cx);
3086
3087 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3088 let mut index = 0;
3089 s.move_cursors_with(|map, _, _| {
3090 let row = rows[index];
3091 index += 1;
3092
3093 let point = Point::new(row, 0);
3094 let boundary = map.next_line_boundary(point).1;
3095 let clipped = map.clip_point(boundary, Bias::Left);
3096
3097 (clipped, SelectionGoal::None)
3098 });
3099 });
3100
3101 let mut indent_edits = Vec::new();
3102 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3103 for row in rows {
3104 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3105 for (row, indent) in indents {
3106 if indent.len == 0 {
3107 continue;
3108 }
3109
3110 let text = match indent.kind {
3111 IndentKind::Space => " ".repeat(indent.len as usize),
3112 IndentKind::Tab => "\t".repeat(indent.len as usize),
3113 };
3114 let point = Point::new(row.0, 0);
3115 indent_edits.push((point..point, text));
3116 }
3117 }
3118 editor.edit(indent_edits, cx);
3119 });
3120 }
3121
3122 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3123 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3124 original_indent_columns: Vec::new(),
3125 });
3126 self.insert_with_autoindent_mode(text, autoindent, cx);
3127 }
3128
3129 fn insert_with_autoindent_mode(
3130 &mut self,
3131 text: &str,
3132 autoindent_mode: Option<AutoindentMode>,
3133 cx: &mut ViewContext<Self>,
3134 ) {
3135 if self.read_only(cx) {
3136 return;
3137 }
3138
3139 let text: Arc<str> = text.into();
3140 self.transact(cx, |this, cx| {
3141 let old_selections = this.selections.all_adjusted(cx);
3142 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3143 let anchors = {
3144 let snapshot = buffer.read(cx);
3145 old_selections
3146 .iter()
3147 .map(|s| {
3148 let anchor = snapshot.anchor_after(s.head());
3149 s.map(|_| anchor)
3150 })
3151 .collect::<Vec<_>>()
3152 };
3153 buffer.edit(
3154 old_selections
3155 .iter()
3156 .map(|s| (s.start..s.end, text.clone())),
3157 autoindent_mode,
3158 cx,
3159 );
3160 anchors
3161 });
3162
3163 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3164 s.select_anchors(selection_anchors);
3165 })
3166 });
3167 }
3168
3169 fn trigger_completion_on_input(
3170 &mut self,
3171 text: &str,
3172 trigger_in_words: bool,
3173 cx: &mut ViewContext<Self>,
3174 ) {
3175 if self.is_completion_trigger(text, trigger_in_words, cx) {
3176 self.show_completions(
3177 &ShowCompletions {
3178 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3179 },
3180 cx,
3181 );
3182 } else {
3183 self.hide_context_menu(cx);
3184 }
3185 }
3186
3187 fn is_completion_trigger(
3188 &self,
3189 text: &str,
3190 trigger_in_words: bool,
3191 cx: &mut ViewContext<Self>,
3192 ) -> bool {
3193 let position = self.selections.newest_anchor().head();
3194 let multibuffer = self.buffer.read(cx);
3195 let Some(buffer) = position
3196 .buffer_id
3197 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3198 else {
3199 return false;
3200 };
3201
3202 if let Some(completion_provider) = &self.completion_provider {
3203 completion_provider.is_completion_trigger(
3204 &buffer,
3205 position.text_anchor,
3206 text,
3207 trigger_in_words,
3208 cx,
3209 )
3210 } else {
3211 false
3212 }
3213 }
3214
3215 /// If any empty selections is touching the start of its innermost containing autoclose
3216 /// region, expand it to select the brackets.
3217 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3218 let selections = self.selections.all::<usize>(cx);
3219 let buffer = self.buffer.read(cx).read(cx);
3220 let new_selections = self
3221 .selections_with_autoclose_regions(selections, &buffer)
3222 .map(|(mut selection, region)| {
3223 if !selection.is_empty() {
3224 return selection;
3225 }
3226
3227 if let Some(region) = region {
3228 let mut range = region.range.to_offset(&buffer);
3229 if selection.start == range.start && range.start >= region.pair.start.len() {
3230 range.start -= region.pair.start.len();
3231 if buffer.contains_str_at(range.start, ®ion.pair.start)
3232 && buffer.contains_str_at(range.end, ®ion.pair.end)
3233 {
3234 range.end += region.pair.end.len();
3235 selection.start = range.start;
3236 selection.end = range.end;
3237
3238 return selection;
3239 }
3240 }
3241 }
3242
3243 let always_treat_brackets_as_autoclosed = buffer
3244 .settings_at(selection.start, cx)
3245 .always_treat_brackets_as_autoclosed;
3246
3247 if !always_treat_brackets_as_autoclosed {
3248 return selection;
3249 }
3250
3251 if let Some(scope) = buffer.language_scope_at(selection.start) {
3252 for (pair, enabled) in scope.brackets() {
3253 if !enabled || !pair.close {
3254 continue;
3255 }
3256
3257 if buffer.contains_str_at(selection.start, &pair.end) {
3258 let pair_start_len = pair.start.len();
3259 if buffer.contains_str_at(
3260 selection.start.saturating_sub(pair_start_len),
3261 &pair.start,
3262 ) {
3263 selection.start -= pair_start_len;
3264 selection.end += pair.end.len();
3265
3266 return selection;
3267 }
3268 }
3269 }
3270 }
3271
3272 selection
3273 })
3274 .collect();
3275
3276 drop(buffer);
3277 self.change_selections(None, cx, |selections| selections.select(new_selections));
3278 }
3279
3280 /// Iterate the given selections, and for each one, find the smallest surrounding
3281 /// autoclose region. This uses the ordering of the selections and the autoclose
3282 /// regions to avoid repeated comparisons.
3283 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3284 &'a self,
3285 selections: impl IntoIterator<Item = Selection<D>>,
3286 buffer: &'a MultiBufferSnapshot,
3287 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3288 let mut i = 0;
3289 let mut regions = self.autoclose_regions.as_slice();
3290 selections.into_iter().map(move |selection| {
3291 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3292
3293 let mut enclosing = None;
3294 while let Some(pair_state) = regions.get(i) {
3295 if pair_state.range.end.to_offset(buffer) < range.start {
3296 regions = ®ions[i + 1..];
3297 i = 0;
3298 } else if pair_state.range.start.to_offset(buffer) > range.end {
3299 break;
3300 } else {
3301 if pair_state.selection_id == selection.id {
3302 enclosing = Some(pair_state);
3303 }
3304 i += 1;
3305 }
3306 }
3307
3308 (selection, enclosing)
3309 })
3310 }
3311
3312 /// Remove any autoclose regions that no longer contain their selection.
3313 fn invalidate_autoclose_regions(
3314 &mut self,
3315 mut selections: &[Selection<Anchor>],
3316 buffer: &MultiBufferSnapshot,
3317 ) {
3318 self.autoclose_regions.retain(|state| {
3319 let mut i = 0;
3320 while let Some(selection) = selections.get(i) {
3321 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3322 selections = &selections[1..];
3323 continue;
3324 }
3325 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3326 break;
3327 }
3328 if selection.id == state.selection_id {
3329 return true;
3330 } else {
3331 i += 1;
3332 }
3333 }
3334 false
3335 });
3336 }
3337
3338 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3339 let offset = position.to_offset(buffer);
3340 let (word_range, kind) = buffer.surrounding_word(offset, true);
3341 if offset > word_range.start && kind == Some(CharKind::Word) {
3342 Some(
3343 buffer
3344 .text_for_range(word_range.start..offset)
3345 .collect::<String>(),
3346 )
3347 } else {
3348 None
3349 }
3350 }
3351
3352 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3353 self.refresh_inlay_hints(
3354 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3355 cx,
3356 );
3357 }
3358
3359 pub fn inlay_hints_enabled(&self) -> bool {
3360 self.inlay_hint_cache.enabled
3361 }
3362
3363 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3364 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3365 return;
3366 }
3367
3368 let reason_description = reason.description();
3369 let ignore_debounce = matches!(
3370 reason,
3371 InlayHintRefreshReason::SettingsChange(_)
3372 | InlayHintRefreshReason::Toggle(_)
3373 | InlayHintRefreshReason::ExcerptsRemoved(_)
3374 );
3375 let (invalidate_cache, required_languages) = match reason {
3376 InlayHintRefreshReason::Toggle(enabled) => {
3377 self.inlay_hint_cache.enabled = enabled;
3378 if enabled {
3379 (InvalidationStrategy::RefreshRequested, None)
3380 } else {
3381 self.inlay_hint_cache.clear();
3382 self.splice_inlays(
3383 self.visible_inlay_hints(cx)
3384 .iter()
3385 .map(|inlay| inlay.id)
3386 .collect(),
3387 Vec::new(),
3388 cx,
3389 );
3390 return;
3391 }
3392 }
3393 InlayHintRefreshReason::SettingsChange(new_settings) => {
3394 match self.inlay_hint_cache.update_settings(
3395 &self.buffer,
3396 new_settings,
3397 self.visible_inlay_hints(cx),
3398 cx,
3399 ) {
3400 ControlFlow::Break(Some(InlaySplice {
3401 to_remove,
3402 to_insert,
3403 })) => {
3404 self.splice_inlays(to_remove, to_insert, cx);
3405 return;
3406 }
3407 ControlFlow::Break(None) => return,
3408 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3409 }
3410 }
3411 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3412 if let Some(InlaySplice {
3413 to_remove,
3414 to_insert,
3415 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3416 {
3417 self.splice_inlays(to_remove, to_insert, cx);
3418 }
3419 return;
3420 }
3421 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3422 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3423 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3424 }
3425 InlayHintRefreshReason::RefreshRequested => {
3426 (InvalidationStrategy::RefreshRequested, None)
3427 }
3428 };
3429
3430 if let Some(InlaySplice {
3431 to_remove,
3432 to_insert,
3433 }) = self.inlay_hint_cache.spawn_hint_refresh(
3434 reason_description,
3435 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3436 invalidate_cache,
3437 ignore_debounce,
3438 cx,
3439 ) {
3440 self.splice_inlays(to_remove, to_insert, cx);
3441 }
3442 }
3443
3444 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3445 self.display_map
3446 .read(cx)
3447 .current_inlays()
3448 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3449 .cloned()
3450 .collect()
3451 }
3452
3453 pub fn excerpts_for_inlay_hints_query(
3454 &self,
3455 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3456 cx: &mut ViewContext<Editor>,
3457 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3458 let Some(project) = self.project.as_ref() else {
3459 return HashMap::default();
3460 };
3461 let project = project.read(cx);
3462 let multi_buffer = self.buffer().read(cx);
3463 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3464 let multi_buffer_visible_start = self
3465 .scroll_manager
3466 .anchor()
3467 .anchor
3468 .to_point(&multi_buffer_snapshot);
3469 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3470 multi_buffer_visible_start
3471 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3472 Bias::Left,
3473 );
3474 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3475 multi_buffer
3476 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3477 .into_iter()
3478 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3479 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3480 let buffer = buffer_handle.read(cx);
3481 let buffer_file = project::File::from_dyn(buffer.file())?;
3482 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3483 let worktree_entry = buffer_worktree
3484 .read(cx)
3485 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3486 if worktree_entry.is_ignored {
3487 return None;
3488 }
3489
3490 let language = buffer.language()?;
3491 if let Some(restrict_to_languages) = restrict_to_languages {
3492 if !restrict_to_languages.contains(language) {
3493 return None;
3494 }
3495 }
3496 Some((
3497 excerpt_id,
3498 (
3499 buffer_handle,
3500 buffer.version().clone(),
3501 excerpt_visible_range,
3502 ),
3503 ))
3504 })
3505 .collect()
3506 }
3507
3508 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3509 TextLayoutDetails {
3510 text_system: cx.text_system().clone(),
3511 editor_style: self.style.clone().unwrap(),
3512 rem_size: cx.rem_size(),
3513 scroll_anchor: self.scroll_manager.anchor(),
3514 visible_rows: self.visible_line_count(),
3515 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3516 }
3517 }
3518
3519 fn splice_inlays(
3520 &self,
3521 to_remove: Vec<InlayId>,
3522 to_insert: Vec<Inlay>,
3523 cx: &mut ViewContext<Self>,
3524 ) {
3525 self.display_map.update(cx, |display_map, cx| {
3526 display_map.splice_inlays(to_remove, to_insert, cx)
3527 });
3528 cx.notify();
3529 }
3530
3531 fn trigger_on_type_formatting(
3532 &self,
3533 input: String,
3534 cx: &mut ViewContext<Self>,
3535 ) -> Option<Task<Result<()>>> {
3536 if input.len() != 1 {
3537 return None;
3538 }
3539
3540 let project = self.project.as_ref()?;
3541 let position = self.selections.newest_anchor().head();
3542 let (buffer, buffer_position) = self
3543 .buffer
3544 .read(cx)
3545 .text_anchor_for_position(position, cx)?;
3546
3547 let settings = language_settings::language_settings(
3548 buffer
3549 .read(cx)
3550 .language_at(buffer_position)
3551 .map(|l| l.name()),
3552 buffer.read(cx).file(),
3553 cx,
3554 );
3555 if !settings.use_on_type_format {
3556 return None;
3557 }
3558
3559 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3560 // hence we do LSP request & edit on host side only — add formats to host's history.
3561 let push_to_lsp_host_history = true;
3562 // If this is not the host, append its history with new edits.
3563 let push_to_client_history = project.read(cx).is_via_collab();
3564
3565 let on_type_formatting = project.update(cx, |project, cx| {
3566 project.on_type_format(
3567 buffer.clone(),
3568 buffer_position,
3569 input,
3570 push_to_lsp_host_history,
3571 cx,
3572 )
3573 });
3574 Some(cx.spawn(|editor, mut cx| async move {
3575 if let Some(transaction) = on_type_formatting.await? {
3576 if push_to_client_history {
3577 buffer
3578 .update(&mut cx, |buffer, _| {
3579 buffer.push_transaction(transaction, Instant::now());
3580 })
3581 .ok();
3582 }
3583 editor.update(&mut cx, |editor, cx| {
3584 editor.refresh_document_highlights(cx);
3585 })?;
3586 }
3587 Ok(())
3588 }))
3589 }
3590
3591 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3592 if self.pending_rename.is_some() {
3593 return;
3594 }
3595
3596 let Some(provider) = self.completion_provider.as_ref() else {
3597 return;
3598 };
3599
3600 if !self.snippet_stack.is_empty() && self.context_menu.read().as_ref().is_some() {
3601 return;
3602 }
3603
3604 let position = self.selections.newest_anchor().head();
3605 let (buffer, buffer_position) =
3606 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3607 output
3608 } else {
3609 return;
3610 };
3611 let show_completion_documentation = buffer
3612 .read(cx)
3613 .snapshot()
3614 .settings_at(buffer_position, cx)
3615 .show_completion_documentation;
3616
3617 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3618
3619 let aside_was_displayed = match self.context_menu.read().deref() {
3620 Some(CodeContextMenu::Completions(menu)) => menu.aside_was_displayed.get(),
3621 _ => false,
3622 };
3623 let trigger_kind = match &options.trigger {
3624 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3625 CompletionTriggerKind::TRIGGER_CHARACTER
3626 }
3627 _ => CompletionTriggerKind::INVOKED,
3628 };
3629 let completion_context = CompletionContext {
3630 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3631 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3632 Some(String::from(trigger))
3633 } else {
3634 None
3635 }
3636 }),
3637 trigger_kind,
3638 };
3639 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3640 let sort_completions = provider.sort_completions();
3641
3642 let id = post_inc(&mut self.next_completion_id);
3643 let task = cx.spawn(|editor, mut cx| {
3644 async move {
3645 editor.update(&mut cx, |this, _| {
3646 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3647 })?;
3648 let completions = completions.await.log_err();
3649 let menu = if let Some(completions) = completions {
3650 let mut menu = CompletionsMenu::new(
3651 id,
3652 sort_completions,
3653 show_completion_documentation,
3654 position,
3655 buffer.clone(),
3656 completions.into(),
3657 aside_was_displayed,
3658 );
3659 menu.filter(query.as_deref(), cx.background_executor().clone())
3660 .await;
3661
3662 if menu.matches.is_empty() {
3663 None
3664 } else {
3665 Some(menu)
3666 }
3667 } else {
3668 None
3669 };
3670
3671 editor.update(&mut cx, |editor, cx| {
3672 let mut context_menu = editor.context_menu.write();
3673 match context_menu.as_ref() {
3674 None => {}
3675
3676 Some(CodeContextMenu::Completions(prev_menu)) => {
3677 if prev_menu.id > id {
3678 return;
3679 }
3680 }
3681
3682 _ => return,
3683 }
3684
3685 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3686 let mut menu = menu.unwrap();
3687 menu.resolve_selected_completion(editor.completion_provider.as_deref(), cx);
3688 *context_menu = Some(CodeContextMenu::Completions(menu));
3689 drop(context_menu);
3690 editor.discard_inline_completion(false, cx);
3691 cx.notify();
3692 } else if editor.completion_tasks.len() <= 1 {
3693 // If there are no more completion tasks and the last menu was
3694 // empty, we should hide it. If it was already hidden, we should
3695 // also show the copilot completion when available.
3696 drop(context_menu);
3697 if editor.hide_context_menu(cx).is_none() {
3698 editor.update_visible_inline_completion(cx);
3699 }
3700 }
3701 })?;
3702
3703 Ok::<_, anyhow::Error>(())
3704 }
3705 .log_err()
3706 });
3707
3708 self.completion_tasks.push((id, task));
3709 }
3710
3711 pub fn confirm_completion(
3712 &mut self,
3713 action: &ConfirmCompletion,
3714 cx: &mut ViewContext<Self>,
3715 ) -> Option<Task<Result<()>>> {
3716 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3717 }
3718
3719 pub fn compose_completion(
3720 &mut self,
3721 action: &ComposeCompletion,
3722 cx: &mut ViewContext<Self>,
3723 ) -> Option<Task<Result<()>>> {
3724 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3725 }
3726
3727 fn do_completion(
3728 &mut self,
3729 item_ix: Option<usize>,
3730 intent: CompletionIntent,
3731 cx: &mut ViewContext<Editor>,
3732 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3733 use language::ToOffset as _;
3734
3735 let completions_menu =
3736 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3737 menu
3738 } else {
3739 return None;
3740 };
3741
3742 let mat = completions_menu
3743 .matches
3744 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
3745 let buffer_handle = completions_menu.buffer;
3746 let completions = completions_menu.completions.read();
3747 let completion = completions.get(mat.candidate_id)?;
3748 cx.stop_propagation();
3749
3750 let snippet;
3751 let text;
3752
3753 if completion.is_snippet() {
3754 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3755 text = snippet.as_ref().unwrap().text.clone();
3756 } else {
3757 snippet = None;
3758 text = completion.new_text.clone();
3759 };
3760 let selections = self.selections.all::<usize>(cx);
3761 let buffer = buffer_handle.read(cx);
3762 let old_range = completion.old_range.to_offset(buffer);
3763 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3764
3765 let newest_selection = self.selections.newest_anchor();
3766 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3767 return None;
3768 }
3769
3770 let lookbehind = newest_selection
3771 .start
3772 .text_anchor
3773 .to_offset(buffer)
3774 .saturating_sub(old_range.start);
3775 let lookahead = old_range
3776 .end
3777 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3778 let mut common_prefix_len = old_text
3779 .bytes()
3780 .zip(text.bytes())
3781 .take_while(|(a, b)| a == b)
3782 .count();
3783
3784 let snapshot = self.buffer.read(cx).snapshot(cx);
3785 let mut range_to_replace: Option<Range<isize>> = None;
3786 let mut ranges = Vec::new();
3787 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3788 for selection in &selections {
3789 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3790 let start = selection.start.saturating_sub(lookbehind);
3791 let end = selection.end + lookahead;
3792 if selection.id == newest_selection.id {
3793 range_to_replace = Some(
3794 ((start + common_prefix_len) as isize - selection.start as isize)
3795 ..(end as isize - selection.start as isize),
3796 );
3797 }
3798 ranges.push(start + common_prefix_len..end);
3799 } else {
3800 common_prefix_len = 0;
3801 ranges.clear();
3802 ranges.extend(selections.iter().map(|s| {
3803 if s.id == newest_selection.id {
3804 range_to_replace = Some(
3805 old_range.start.to_offset_utf16(&snapshot).0 as isize
3806 - selection.start as isize
3807 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3808 - selection.start as isize,
3809 );
3810 old_range.clone()
3811 } else {
3812 s.start..s.end
3813 }
3814 }));
3815 break;
3816 }
3817 if !self.linked_edit_ranges.is_empty() {
3818 let start_anchor = snapshot.anchor_before(selection.head());
3819 let end_anchor = snapshot.anchor_after(selection.tail());
3820 if let Some(ranges) = self
3821 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
3822 {
3823 for (buffer, edits) in ranges {
3824 linked_edits.entry(buffer.clone()).or_default().extend(
3825 edits
3826 .into_iter()
3827 .map(|range| (range, text[common_prefix_len..].to_owned())),
3828 );
3829 }
3830 }
3831 }
3832 }
3833 let text = &text[common_prefix_len..];
3834
3835 cx.emit(EditorEvent::InputHandled {
3836 utf16_range_to_replace: range_to_replace,
3837 text: text.into(),
3838 });
3839
3840 self.transact(cx, |this, cx| {
3841 if let Some(mut snippet) = snippet {
3842 snippet.text = text.to_string();
3843 for tabstop in snippet
3844 .tabstops
3845 .iter_mut()
3846 .flat_map(|tabstop| tabstop.ranges.iter_mut())
3847 {
3848 tabstop.start -= common_prefix_len as isize;
3849 tabstop.end -= common_prefix_len as isize;
3850 }
3851
3852 this.insert_snippet(&ranges, snippet, cx).log_err();
3853 } else {
3854 this.buffer.update(cx, |buffer, cx| {
3855 buffer.edit(
3856 ranges.iter().map(|range| (range.clone(), text)),
3857 this.autoindent_mode.clone(),
3858 cx,
3859 );
3860 });
3861 }
3862 for (buffer, edits) in linked_edits {
3863 buffer.update(cx, |buffer, cx| {
3864 let snapshot = buffer.snapshot();
3865 let edits = edits
3866 .into_iter()
3867 .map(|(range, text)| {
3868 use text::ToPoint as TP;
3869 let end_point = TP::to_point(&range.end, &snapshot);
3870 let start_point = TP::to_point(&range.start, &snapshot);
3871 (start_point..end_point, text)
3872 })
3873 .sorted_by_key(|(range, _)| range.start)
3874 .collect::<Vec<_>>();
3875 buffer.edit(edits, None, cx);
3876 })
3877 }
3878
3879 this.refresh_inline_completion(true, false, cx);
3880 });
3881
3882 let show_new_completions_on_confirm = completion
3883 .confirm
3884 .as_ref()
3885 .map_or(false, |confirm| confirm(intent, cx));
3886 if show_new_completions_on_confirm {
3887 self.show_completions(&ShowCompletions { trigger: None }, cx);
3888 }
3889
3890 let provider = self.completion_provider.as_ref()?;
3891 let apply_edits = provider.apply_additional_edits_for_completion(
3892 buffer_handle,
3893 completion.clone(),
3894 true,
3895 cx,
3896 );
3897
3898 let editor_settings = EditorSettings::get_global(cx);
3899 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
3900 // After the code completion is finished, users often want to know what signatures are needed.
3901 // so we should automatically call signature_help
3902 self.show_signature_help(&ShowSignatureHelp, cx);
3903 }
3904
3905 Some(cx.foreground_executor().spawn(async move {
3906 apply_edits.await?;
3907 Ok(())
3908 }))
3909 }
3910
3911 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3912 let mut context_menu = self.context_menu.write();
3913 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
3914 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
3915 // Toggle if we're selecting the same one
3916 *context_menu = None;
3917 cx.notify();
3918 return;
3919 } else {
3920 // Otherwise, clear it and start a new one
3921 *context_menu = None;
3922 cx.notify();
3923 }
3924 }
3925 drop(context_menu);
3926 let snapshot = self.snapshot(cx);
3927 let deployed_from_indicator = action.deployed_from_indicator;
3928 let mut task = self.code_actions_task.take();
3929 let action = action.clone();
3930 cx.spawn(|editor, mut cx| async move {
3931 while let Some(prev_task) = task {
3932 prev_task.await.log_err();
3933 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
3934 }
3935
3936 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
3937 if editor.focus_handle.is_focused(cx) {
3938 let multibuffer_point = action
3939 .deployed_from_indicator
3940 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
3941 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
3942 let (buffer, buffer_row) = snapshot
3943 .buffer_snapshot
3944 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
3945 .and_then(|(buffer_snapshot, range)| {
3946 editor
3947 .buffer
3948 .read(cx)
3949 .buffer(buffer_snapshot.remote_id())
3950 .map(|buffer| (buffer, range.start.row))
3951 })?;
3952 let (_, code_actions) = editor
3953 .available_code_actions
3954 .clone()
3955 .and_then(|(location, code_actions)| {
3956 let snapshot = location.buffer.read(cx).snapshot();
3957 let point_range = location.range.to_point(&snapshot);
3958 let point_range = point_range.start.row..=point_range.end.row;
3959 if point_range.contains(&buffer_row) {
3960 Some((location, code_actions))
3961 } else {
3962 None
3963 }
3964 })
3965 .unzip();
3966 let buffer_id = buffer.read(cx).remote_id();
3967 let tasks = editor
3968 .tasks
3969 .get(&(buffer_id, buffer_row))
3970 .map(|t| Arc::new(t.to_owned()));
3971 if tasks.is_none() && code_actions.is_none() {
3972 return None;
3973 }
3974
3975 editor.completion_tasks.clear();
3976 editor.discard_inline_completion(false, cx);
3977 let task_context =
3978 tasks
3979 .as_ref()
3980 .zip(editor.project.clone())
3981 .map(|(tasks, project)| {
3982 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
3983 });
3984
3985 Some(cx.spawn(|editor, mut cx| async move {
3986 let task_context = match task_context {
3987 Some(task_context) => task_context.await,
3988 None => None,
3989 };
3990 let resolved_tasks =
3991 tasks.zip(task_context).map(|(tasks, task_context)| {
3992 Arc::new(ResolvedTasks {
3993 templates: tasks.resolve(&task_context).collect(),
3994 position: snapshot.buffer_snapshot.anchor_before(Point::new(
3995 multibuffer_point.row,
3996 tasks.column,
3997 )),
3998 })
3999 });
4000 let spawn_straight_away = resolved_tasks
4001 .as_ref()
4002 .map_or(false, |tasks| tasks.templates.len() == 1)
4003 && code_actions
4004 .as_ref()
4005 .map_or(true, |actions| actions.is_empty());
4006 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4007 *editor.context_menu.write() =
4008 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4009 buffer,
4010 actions: CodeActionContents {
4011 tasks: resolved_tasks,
4012 actions: code_actions,
4013 },
4014 selected_item: Default::default(),
4015 scroll_handle: UniformListScrollHandle::default(),
4016 deployed_from_indicator,
4017 }));
4018 if spawn_straight_away {
4019 if let Some(task) = editor.confirm_code_action(
4020 &ConfirmCodeAction { item_ix: Some(0) },
4021 cx,
4022 ) {
4023 cx.notify();
4024 return task;
4025 }
4026 }
4027 cx.notify();
4028 Task::ready(Ok(()))
4029 }) {
4030 task.await
4031 } else {
4032 Ok(())
4033 }
4034 }))
4035 } else {
4036 Some(Task::ready(Ok(())))
4037 }
4038 })?;
4039 if let Some(task) = spawned_test_task {
4040 task.await?;
4041 }
4042
4043 Ok::<_, anyhow::Error>(())
4044 })
4045 .detach_and_log_err(cx);
4046 }
4047
4048 pub fn confirm_code_action(
4049 &mut self,
4050 action: &ConfirmCodeAction,
4051 cx: &mut ViewContext<Self>,
4052 ) -> Option<Task<Result<()>>> {
4053 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4054 menu
4055 } else {
4056 return None;
4057 };
4058 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4059 let action = actions_menu.actions.get(action_ix)?;
4060 let title = action.label();
4061 let buffer = actions_menu.buffer;
4062 let workspace = self.workspace()?;
4063
4064 match action {
4065 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4066 workspace.update(cx, |workspace, cx| {
4067 workspace::tasks::schedule_resolved_task(
4068 workspace,
4069 task_source_kind,
4070 resolved_task,
4071 false,
4072 cx,
4073 );
4074
4075 Some(Task::ready(Ok(())))
4076 })
4077 }
4078 CodeActionsItem::CodeAction {
4079 excerpt_id,
4080 action,
4081 provider,
4082 } => {
4083 let apply_code_action =
4084 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4085 let workspace = workspace.downgrade();
4086 Some(cx.spawn(|editor, cx| async move {
4087 let project_transaction = apply_code_action.await?;
4088 Self::open_project_transaction(
4089 &editor,
4090 workspace,
4091 project_transaction,
4092 title,
4093 cx,
4094 )
4095 .await
4096 }))
4097 }
4098 }
4099 }
4100
4101 pub async fn open_project_transaction(
4102 this: &WeakView<Editor>,
4103 workspace: WeakView<Workspace>,
4104 transaction: ProjectTransaction,
4105 title: String,
4106 mut cx: AsyncWindowContext,
4107 ) -> Result<()> {
4108 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4109 cx.update(|cx| {
4110 entries.sort_unstable_by_key(|(buffer, _)| {
4111 buffer.read(cx).file().map(|f| f.path().clone())
4112 });
4113 })?;
4114
4115 // If the project transaction's edits are all contained within this editor, then
4116 // avoid opening a new editor to display them.
4117
4118 if let Some((buffer, transaction)) = entries.first() {
4119 if entries.len() == 1 {
4120 let excerpt = this.update(&mut cx, |editor, cx| {
4121 editor
4122 .buffer()
4123 .read(cx)
4124 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4125 })?;
4126 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4127 if excerpted_buffer == *buffer {
4128 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4129 let excerpt_range = excerpt_range.to_offset(buffer);
4130 buffer
4131 .edited_ranges_for_transaction::<usize>(transaction)
4132 .all(|range| {
4133 excerpt_range.start <= range.start
4134 && excerpt_range.end >= range.end
4135 })
4136 })?;
4137
4138 if all_edits_within_excerpt {
4139 return Ok(());
4140 }
4141 }
4142 }
4143 }
4144 } else {
4145 return Ok(());
4146 }
4147
4148 let mut ranges_to_highlight = Vec::new();
4149 let excerpt_buffer = cx.new_model(|cx| {
4150 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4151 for (buffer_handle, transaction) in &entries {
4152 let buffer = buffer_handle.read(cx);
4153 ranges_to_highlight.extend(
4154 multibuffer.push_excerpts_with_context_lines(
4155 buffer_handle.clone(),
4156 buffer
4157 .edited_ranges_for_transaction::<usize>(transaction)
4158 .collect(),
4159 DEFAULT_MULTIBUFFER_CONTEXT,
4160 cx,
4161 ),
4162 );
4163 }
4164 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4165 multibuffer
4166 })?;
4167
4168 workspace.update(&mut cx, |workspace, cx| {
4169 let project = workspace.project().clone();
4170 let editor =
4171 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4172 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4173 editor.update(cx, |editor, cx| {
4174 editor.highlight_background::<Self>(
4175 &ranges_to_highlight,
4176 |theme| theme.editor_highlighted_line_background,
4177 cx,
4178 );
4179 });
4180 })?;
4181
4182 Ok(())
4183 }
4184
4185 pub fn clear_code_action_providers(&mut self) {
4186 self.code_action_providers.clear();
4187 self.available_code_actions.take();
4188 }
4189
4190 pub fn push_code_action_provider(
4191 &mut self,
4192 provider: Arc<dyn CodeActionProvider>,
4193 cx: &mut ViewContext<Self>,
4194 ) {
4195 self.code_action_providers.push(provider);
4196 self.refresh_code_actions(cx);
4197 }
4198
4199 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4200 let buffer = self.buffer.read(cx);
4201 let newest_selection = self.selections.newest_anchor().clone();
4202 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4203 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4204 if start_buffer != end_buffer {
4205 return None;
4206 }
4207
4208 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4209 cx.background_executor()
4210 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4211 .await;
4212
4213 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4214 let providers = this.code_action_providers.clone();
4215 let tasks = this
4216 .code_action_providers
4217 .iter()
4218 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4219 .collect::<Vec<_>>();
4220 (providers, tasks)
4221 })?;
4222
4223 let mut actions = Vec::new();
4224 for (provider, provider_actions) in
4225 providers.into_iter().zip(future::join_all(tasks).await)
4226 {
4227 if let Some(provider_actions) = provider_actions.log_err() {
4228 actions.extend(provider_actions.into_iter().map(|action| {
4229 AvailableCodeAction {
4230 excerpt_id: newest_selection.start.excerpt_id,
4231 action,
4232 provider: provider.clone(),
4233 }
4234 }));
4235 }
4236 }
4237
4238 this.update(&mut cx, |this, cx| {
4239 this.available_code_actions = if actions.is_empty() {
4240 None
4241 } else {
4242 Some((
4243 Location {
4244 buffer: start_buffer,
4245 range: start..end,
4246 },
4247 actions.into(),
4248 ))
4249 };
4250 cx.notify();
4251 })
4252 }));
4253 None
4254 }
4255
4256 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4257 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4258 self.show_git_blame_inline = false;
4259
4260 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4261 cx.background_executor().timer(delay).await;
4262
4263 this.update(&mut cx, |this, cx| {
4264 this.show_git_blame_inline = true;
4265 cx.notify();
4266 })
4267 .log_err();
4268 }));
4269 }
4270 }
4271
4272 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4273 if self.pending_rename.is_some() {
4274 return None;
4275 }
4276
4277 let provider = self.semantics_provider.clone()?;
4278 let buffer = self.buffer.read(cx);
4279 let newest_selection = self.selections.newest_anchor().clone();
4280 let cursor_position = newest_selection.head();
4281 let (cursor_buffer, cursor_buffer_position) =
4282 buffer.text_anchor_for_position(cursor_position, cx)?;
4283 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4284 if cursor_buffer != tail_buffer {
4285 return None;
4286 }
4287
4288 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4289 cx.background_executor()
4290 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4291 .await;
4292
4293 let highlights = if let Some(highlights) = cx
4294 .update(|cx| {
4295 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4296 })
4297 .ok()
4298 .flatten()
4299 {
4300 highlights.await.log_err()
4301 } else {
4302 None
4303 };
4304
4305 if let Some(highlights) = highlights {
4306 this.update(&mut cx, |this, cx| {
4307 if this.pending_rename.is_some() {
4308 return;
4309 }
4310
4311 let buffer_id = cursor_position.buffer_id;
4312 let buffer = this.buffer.read(cx);
4313 if !buffer
4314 .text_anchor_for_position(cursor_position, cx)
4315 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4316 {
4317 return;
4318 }
4319
4320 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4321 let mut write_ranges = Vec::new();
4322 let mut read_ranges = Vec::new();
4323 for highlight in highlights {
4324 for (excerpt_id, excerpt_range) in
4325 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4326 {
4327 let start = highlight
4328 .range
4329 .start
4330 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4331 let end = highlight
4332 .range
4333 .end
4334 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4335 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4336 continue;
4337 }
4338
4339 let range = Anchor {
4340 buffer_id,
4341 excerpt_id,
4342 text_anchor: start,
4343 }..Anchor {
4344 buffer_id,
4345 excerpt_id,
4346 text_anchor: end,
4347 };
4348 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4349 write_ranges.push(range);
4350 } else {
4351 read_ranges.push(range);
4352 }
4353 }
4354 }
4355
4356 this.highlight_background::<DocumentHighlightRead>(
4357 &read_ranges,
4358 |theme| theme.editor_document_highlight_read_background,
4359 cx,
4360 );
4361 this.highlight_background::<DocumentHighlightWrite>(
4362 &write_ranges,
4363 |theme| theme.editor_document_highlight_write_background,
4364 cx,
4365 );
4366 cx.notify();
4367 })
4368 .log_err();
4369 }
4370 }));
4371 None
4372 }
4373
4374 pub fn refresh_inline_completion(
4375 &mut self,
4376 debounce: bool,
4377 user_requested: bool,
4378 cx: &mut ViewContext<Self>,
4379 ) -> Option<()> {
4380 let provider = self.inline_completion_provider()?;
4381 let cursor = self.selections.newest_anchor().head();
4382 let (buffer, cursor_buffer_position) =
4383 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4384
4385 if !user_requested
4386 && (!self.enable_inline_completions
4387 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4388 || !self.is_focused(cx))
4389 {
4390 self.discard_inline_completion(false, cx);
4391 return None;
4392 }
4393
4394 self.update_visible_inline_completion(cx);
4395 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4396 Some(())
4397 }
4398
4399 fn cycle_inline_completion(
4400 &mut self,
4401 direction: Direction,
4402 cx: &mut ViewContext<Self>,
4403 ) -> Option<()> {
4404 let provider = self.inline_completion_provider()?;
4405 let cursor = self.selections.newest_anchor().head();
4406 let (buffer, cursor_buffer_position) =
4407 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4408 if !self.enable_inline_completions
4409 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4410 {
4411 return None;
4412 }
4413
4414 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4415 self.update_visible_inline_completion(cx);
4416
4417 Some(())
4418 }
4419
4420 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4421 if !self.has_active_inline_completion() {
4422 self.refresh_inline_completion(false, true, cx);
4423 return;
4424 }
4425
4426 self.update_visible_inline_completion(cx);
4427 }
4428
4429 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4430 self.show_cursor_names(cx);
4431 }
4432
4433 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4434 self.show_cursor_names = true;
4435 cx.notify();
4436 cx.spawn(|this, mut cx| async move {
4437 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4438 this.update(&mut cx, |this, cx| {
4439 this.show_cursor_names = false;
4440 cx.notify()
4441 })
4442 .ok()
4443 })
4444 .detach();
4445 }
4446
4447 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4448 if self.has_active_inline_completion() {
4449 self.cycle_inline_completion(Direction::Next, cx);
4450 } else {
4451 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4452 if is_copilot_disabled {
4453 cx.propagate();
4454 }
4455 }
4456 }
4457
4458 pub fn previous_inline_completion(
4459 &mut self,
4460 _: &PreviousInlineCompletion,
4461 cx: &mut ViewContext<Self>,
4462 ) {
4463 if self.has_active_inline_completion() {
4464 self.cycle_inline_completion(Direction::Prev, cx);
4465 } else {
4466 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4467 if is_copilot_disabled {
4468 cx.propagate();
4469 }
4470 }
4471 }
4472
4473 pub fn accept_inline_completion(
4474 &mut self,
4475 _: &AcceptInlineCompletion,
4476 cx: &mut ViewContext<Self>,
4477 ) {
4478 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4479 return;
4480 };
4481
4482 self.report_inline_completion_event(true, cx);
4483
4484 match &active_inline_completion.completion {
4485 InlineCompletion::Move(position) => {
4486 let position = *position;
4487 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4488 selections.select_anchor_ranges([position..position]);
4489 });
4490 }
4491 InlineCompletion::Edit(edits) => {
4492 if let Some(provider) = self.inline_completion_provider() {
4493 provider.accept(cx);
4494 }
4495
4496 let snapshot = self.buffer.read(cx).snapshot(cx);
4497 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4498
4499 self.buffer.update(cx, |buffer, cx| {
4500 buffer.edit(edits.iter().cloned(), None, cx)
4501 });
4502
4503 self.change_selections(None, cx, |s| {
4504 s.select_anchor_ranges([last_edit_end..last_edit_end])
4505 });
4506
4507 self.update_visible_inline_completion(cx);
4508 if self.active_inline_completion.is_none() {
4509 self.refresh_inline_completion(true, true, cx);
4510 }
4511
4512 cx.notify();
4513 }
4514 }
4515 }
4516
4517 pub fn accept_partial_inline_completion(
4518 &mut self,
4519 _: &AcceptPartialInlineCompletion,
4520 cx: &mut ViewContext<Self>,
4521 ) {
4522 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4523 return;
4524 };
4525 if self.selections.count() != 1 {
4526 return;
4527 }
4528
4529 self.report_inline_completion_event(true, cx);
4530
4531 match &active_inline_completion.completion {
4532 InlineCompletion::Move(position) => {
4533 let position = *position;
4534 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4535 selections.select_anchor_ranges([position..position]);
4536 });
4537 }
4538 InlineCompletion::Edit(edits) => {
4539 if edits.len() == 1 && edits[0].0.start == edits[0].0.end {
4540 let text = edits[0].1.as_str();
4541 let mut partial_completion = text
4542 .chars()
4543 .by_ref()
4544 .take_while(|c| c.is_alphabetic())
4545 .collect::<String>();
4546 if partial_completion.is_empty() {
4547 partial_completion = text
4548 .chars()
4549 .by_ref()
4550 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4551 .collect::<String>();
4552 }
4553
4554 cx.emit(EditorEvent::InputHandled {
4555 utf16_range_to_replace: None,
4556 text: partial_completion.clone().into(),
4557 });
4558
4559 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4560
4561 self.refresh_inline_completion(true, true, cx);
4562 cx.notify();
4563 }
4564 }
4565 }
4566 }
4567
4568 fn discard_inline_completion(
4569 &mut self,
4570 should_report_inline_completion_event: bool,
4571 cx: &mut ViewContext<Self>,
4572 ) -> bool {
4573 if should_report_inline_completion_event {
4574 self.report_inline_completion_event(false, cx);
4575 }
4576
4577 if let Some(provider) = self.inline_completion_provider() {
4578 provider.discard(cx);
4579 }
4580
4581 self.take_active_inline_completion(cx).is_some()
4582 }
4583
4584 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4585 let Some(provider) = self.inline_completion_provider() else {
4586 return;
4587 };
4588 let Some(project) = self.project.as_ref() else {
4589 return;
4590 };
4591 let Some((_, buffer, _)) = self
4592 .buffer
4593 .read(cx)
4594 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4595 else {
4596 return;
4597 };
4598
4599 let project = project.read(cx);
4600 let extension = buffer
4601 .read(cx)
4602 .file()
4603 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4604 project.client().telemetry().report_inline_completion_event(
4605 provider.name().into(),
4606 accepted,
4607 extension,
4608 );
4609 }
4610
4611 pub fn has_active_inline_completion(&self) -> bool {
4612 self.active_inline_completion.is_some()
4613 }
4614
4615 fn take_active_inline_completion(
4616 &mut self,
4617 cx: &mut ViewContext<Self>,
4618 ) -> Option<InlineCompletion> {
4619 let active_inline_completion = self.active_inline_completion.take()?;
4620 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4621 self.clear_highlights::<InlineCompletionHighlight>(cx);
4622 Some(active_inline_completion.completion)
4623 }
4624
4625 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4626 let selection = self.selections.newest_anchor();
4627 let cursor = selection.head();
4628 let multibuffer = self.buffer.read(cx).snapshot(cx);
4629 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4630 let excerpt_id = cursor.excerpt_id;
4631
4632 if self.context_menu.read().is_some()
4633 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion())
4634 || !offset_selection.is_empty()
4635 || self
4636 .active_inline_completion
4637 .as_ref()
4638 .map_or(false, |completion| {
4639 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4640 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4641 !invalidation_range.contains(&offset_selection.head())
4642 })
4643 {
4644 self.discard_inline_completion(false, cx);
4645 return None;
4646 }
4647
4648 self.take_active_inline_completion(cx);
4649 let provider = self.inline_completion_provider()?;
4650
4651 let (buffer, cursor_buffer_position) =
4652 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4653
4654 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4655 let edits = completion
4656 .edits
4657 .into_iter()
4658 .map(|(range, new_text)| {
4659 (
4660 multibuffer
4661 .anchor_in_excerpt(excerpt_id, range.start)
4662 .unwrap()
4663 ..multibuffer
4664 .anchor_in_excerpt(excerpt_id, range.end)
4665 .unwrap(),
4666 new_text,
4667 )
4668 })
4669 .collect::<Vec<_>>();
4670 if edits.is_empty() {
4671 return None;
4672 }
4673
4674 let first_edit_start = edits.first().unwrap().0.start;
4675 let edit_start_row = first_edit_start
4676 .to_point(&multibuffer)
4677 .row
4678 .saturating_sub(2);
4679
4680 let last_edit_end = edits.last().unwrap().0.end;
4681 let edit_end_row = cmp::min(
4682 multibuffer.max_point().row,
4683 last_edit_end.to_point(&multibuffer).row + 2,
4684 );
4685
4686 let cursor_row = cursor.to_point(&multibuffer).row;
4687
4688 let mut inlay_ids = Vec::new();
4689 let invalidation_row_range;
4690 let completion;
4691 if cursor_row < edit_start_row {
4692 invalidation_row_range = cursor_row..edit_end_row;
4693 completion = InlineCompletion::Move(first_edit_start);
4694 } else if cursor_row > edit_end_row {
4695 invalidation_row_range = edit_start_row..cursor_row;
4696 completion = InlineCompletion::Move(first_edit_start);
4697 } else {
4698 if edits
4699 .iter()
4700 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4701 {
4702 let mut inlays = Vec::new();
4703 for (range, new_text) in &edits {
4704 let inlay = Inlay::suggestion(
4705 post_inc(&mut self.next_inlay_id),
4706 range.start,
4707 new_text.as_str(),
4708 );
4709 inlay_ids.push(inlay.id);
4710 inlays.push(inlay);
4711 }
4712
4713 self.splice_inlays(vec![], inlays, cx);
4714 } else {
4715 let background_color = cx.theme().status().deleted_background;
4716 self.highlight_text::<InlineCompletionHighlight>(
4717 edits.iter().map(|(range, _)| range.clone()).collect(),
4718 HighlightStyle {
4719 background_color: Some(background_color),
4720 ..Default::default()
4721 },
4722 cx,
4723 );
4724 }
4725
4726 invalidation_row_range = edit_start_row..edit_end_row;
4727 completion = InlineCompletion::Edit(edits);
4728 };
4729
4730 let invalidation_range = multibuffer
4731 .anchor_before(Point::new(invalidation_row_range.start, 0))
4732 ..multibuffer.anchor_after(Point::new(
4733 invalidation_row_range.end,
4734 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4735 ));
4736
4737 self.active_inline_completion = Some(InlineCompletionState {
4738 inlay_ids,
4739 completion,
4740 invalidation_range,
4741 });
4742 cx.notify();
4743
4744 Some(())
4745 }
4746
4747 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4748 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4749 }
4750
4751 fn render_code_actions_indicator(
4752 &self,
4753 _style: &EditorStyle,
4754 row: DisplayRow,
4755 is_active: bool,
4756 cx: &mut ViewContext<Self>,
4757 ) -> Option<IconButton> {
4758 if self.available_code_actions.is_some() {
4759 Some(
4760 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4761 .shape(ui::IconButtonShape::Square)
4762 .icon_size(IconSize::XSmall)
4763 .icon_color(Color::Muted)
4764 .selected(is_active)
4765 .tooltip({
4766 let focus_handle = self.focus_handle.clone();
4767 move |cx| {
4768 Tooltip::for_action_in(
4769 "Toggle Code Actions",
4770 &ToggleCodeActions {
4771 deployed_from_indicator: None,
4772 },
4773 &focus_handle,
4774 cx,
4775 )
4776 }
4777 })
4778 .on_click(cx.listener(move |editor, _e, cx| {
4779 editor.focus(cx);
4780 editor.toggle_code_actions(
4781 &ToggleCodeActions {
4782 deployed_from_indicator: Some(row),
4783 },
4784 cx,
4785 );
4786 })),
4787 )
4788 } else {
4789 None
4790 }
4791 }
4792
4793 fn clear_tasks(&mut self) {
4794 self.tasks.clear()
4795 }
4796
4797 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4798 if self.tasks.insert(key, value).is_some() {
4799 // This case should hopefully be rare, but just in case...
4800 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4801 }
4802 }
4803
4804 fn build_tasks_context(
4805 project: &Model<Project>,
4806 buffer: &Model<Buffer>,
4807 buffer_row: u32,
4808 tasks: &Arc<RunnableTasks>,
4809 cx: &mut ViewContext<Self>,
4810 ) -> Task<Option<task::TaskContext>> {
4811 let position = Point::new(buffer_row, tasks.column);
4812 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4813 let location = Location {
4814 buffer: buffer.clone(),
4815 range: range_start..range_start,
4816 };
4817 // Fill in the environmental variables from the tree-sitter captures
4818 let mut captured_task_variables = TaskVariables::default();
4819 for (capture_name, value) in tasks.extra_variables.clone() {
4820 captured_task_variables.insert(
4821 task::VariableName::Custom(capture_name.into()),
4822 value.clone(),
4823 );
4824 }
4825 project.update(cx, |project, cx| {
4826 project.task_store().update(cx, |task_store, cx| {
4827 task_store.task_context_for_location(captured_task_variables, location, cx)
4828 })
4829 })
4830 }
4831
4832 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
4833 let Some((workspace, _)) = self.workspace.clone() else {
4834 return;
4835 };
4836 let Some(project) = self.project.clone() else {
4837 return;
4838 };
4839
4840 // Try to find a closest, enclosing node using tree-sitter that has a
4841 // task
4842 let Some((buffer, buffer_row, tasks)) = self
4843 .find_enclosing_node_task(cx)
4844 // Or find the task that's closest in row-distance.
4845 .or_else(|| self.find_closest_task(cx))
4846 else {
4847 return;
4848 };
4849
4850 let reveal_strategy = action.reveal;
4851 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
4852 cx.spawn(|_, mut cx| async move {
4853 let context = task_context.await?;
4854 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
4855
4856 let resolved = resolved_task.resolved.as_mut()?;
4857 resolved.reveal = reveal_strategy;
4858
4859 workspace
4860 .update(&mut cx, |workspace, cx| {
4861 workspace::tasks::schedule_resolved_task(
4862 workspace,
4863 task_source_kind,
4864 resolved_task,
4865 false,
4866 cx,
4867 );
4868 })
4869 .ok()
4870 })
4871 .detach();
4872 }
4873
4874 fn find_closest_task(
4875 &mut self,
4876 cx: &mut ViewContext<Self>,
4877 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
4878 let cursor_row = self.selections.newest_adjusted(cx).head().row;
4879
4880 let ((buffer_id, row), tasks) = self
4881 .tasks
4882 .iter()
4883 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
4884
4885 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
4886 let tasks = Arc::new(tasks.to_owned());
4887 Some((buffer, *row, tasks))
4888 }
4889
4890 fn find_enclosing_node_task(
4891 &mut self,
4892 cx: &mut ViewContext<Self>,
4893 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
4894 let snapshot = self.buffer.read(cx).snapshot(cx);
4895 let offset = self.selections.newest::<usize>(cx).head();
4896 let excerpt = snapshot.excerpt_containing(offset..offset)?;
4897 let buffer_id = excerpt.buffer().remote_id();
4898
4899 let layer = excerpt.buffer().syntax_layer_at(offset)?;
4900 let mut cursor = layer.node().walk();
4901
4902 while cursor.goto_first_child_for_byte(offset).is_some() {
4903 if cursor.node().end_byte() == offset {
4904 cursor.goto_next_sibling();
4905 }
4906 }
4907
4908 // Ascend to the smallest ancestor that contains the range and has a task.
4909 loop {
4910 let node = cursor.node();
4911 let node_range = node.byte_range();
4912 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
4913
4914 // Check if this node contains our offset
4915 if node_range.start <= offset && node_range.end >= offset {
4916 // If it contains offset, check for task
4917 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
4918 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
4919 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
4920 }
4921 }
4922
4923 if !cursor.goto_parent() {
4924 break;
4925 }
4926 }
4927 None
4928 }
4929
4930 fn render_run_indicator(
4931 &self,
4932 _style: &EditorStyle,
4933 is_active: bool,
4934 row: DisplayRow,
4935 cx: &mut ViewContext<Self>,
4936 ) -> IconButton {
4937 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
4938 .shape(ui::IconButtonShape::Square)
4939 .icon_size(IconSize::XSmall)
4940 .icon_color(Color::Muted)
4941 .selected(is_active)
4942 .on_click(cx.listener(move |editor, _e, cx| {
4943 editor.focus(cx);
4944 editor.toggle_code_actions(
4945 &ToggleCodeActions {
4946 deployed_from_indicator: Some(row),
4947 },
4948 cx,
4949 );
4950 }))
4951 }
4952
4953 pub fn context_menu_visible(&self) -> bool {
4954 self.context_menu
4955 .read()
4956 .as_ref()
4957 .map_or(false, |menu| menu.visible())
4958 }
4959
4960 fn render_context_menu(
4961 &self,
4962 cursor_position: DisplayPoint,
4963 style: &EditorStyle,
4964 max_height: Pixels,
4965 cx: &mut ViewContext<Editor>,
4966 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4967 self.context_menu.read().as_ref().map(|menu| {
4968 menu.render(
4969 cursor_position,
4970 style,
4971 max_height,
4972 self.workspace.as_ref().map(|(w, _)| w.clone()),
4973 cx,
4974 )
4975 })
4976 }
4977
4978 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
4979 cx.notify();
4980 self.completion_tasks.clear();
4981 let context_menu = self.context_menu.write().take();
4982 if context_menu.is_some() {
4983 self.update_visible_inline_completion(cx);
4984 }
4985 context_menu
4986 }
4987
4988 fn show_snippet_choices(
4989 &mut self,
4990 choices: &Vec<String>,
4991 selection: Range<Anchor>,
4992 cx: &mut ViewContext<Self>,
4993 ) {
4994 if selection.start.buffer_id.is_none() {
4995 return;
4996 }
4997 let buffer_id = selection.start.buffer_id.unwrap();
4998 let buffer = self.buffer().read(cx).buffer(buffer_id);
4999 let id = post_inc(&mut self.next_completion_id);
5000
5001 if let Some(buffer) = buffer {
5002 *self.context_menu.write() = Some(CodeContextMenu::Completions(
5003 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5004 ));
5005 }
5006 }
5007
5008 pub fn insert_snippet(
5009 &mut self,
5010 insertion_ranges: &[Range<usize>],
5011 snippet: Snippet,
5012 cx: &mut ViewContext<Self>,
5013 ) -> Result<()> {
5014 struct Tabstop<T> {
5015 is_end_tabstop: bool,
5016 ranges: Vec<Range<T>>,
5017 choices: Option<Vec<String>>,
5018 }
5019
5020 let tabstops = self.buffer.update(cx, |buffer, cx| {
5021 let snippet_text: Arc<str> = snippet.text.clone().into();
5022 buffer.edit(
5023 insertion_ranges
5024 .iter()
5025 .cloned()
5026 .map(|range| (range, snippet_text.clone())),
5027 Some(AutoindentMode::EachLine),
5028 cx,
5029 );
5030
5031 let snapshot = &*buffer.read(cx);
5032 let snippet = &snippet;
5033 snippet
5034 .tabstops
5035 .iter()
5036 .map(|tabstop| {
5037 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5038 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5039 });
5040 let mut tabstop_ranges = tabstop
5041 .ranges
5042 .iter()
5043 .flat_map(|tabstop_range| {
5044 let mut delta = 0_isize;
5045 insertion_ranges.iter().map(move |insertion_range| {
5046 let insertion_start = insertion_range.start as isize + delta;
5047 delta +=
5048 snippet.text.len() as isize - insertion_range.len() as isize;
5049
5050 let start = ((insertion_start + tabstop_range.start) as usize)
5051 .min(snapshot.len());
5052 let end = ((insertion_start + tabstop_range.end) as usize)
5053 .min(snapshot.len());
5054 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5055 })
5056 })
5057 .collect::<Vec<_>>();
5058 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5059
5060 Tabstop {
5061 is_end_tabstop,
5062 ranges: tabstop_ranges,
5063 choices: tabstop.choices.clone(),
5064 }
5065 })
5066 .collect::<Vec<_>>()
5067 });
5068 if let Some(tabstop) = tabstops.first() {
5069 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5070 s.select_ranges(tabstop.ranges.iter().cloned());
5071 });
5072
5073 if let Some(choices) = &tabstop.choices {
5074 if let Some(selection) = tabstop.ranges.first() {
5075 self.show_snippet_choices(choices, selection.clone(), cx)
5076 }
5077 }
5078
5079 // If we're already at the last tabstop and it's at the end of the snippet,
5080 // we're done, we don't need to keep the state around.
5081 if !tabstop.is_end_tabstop {
5082 let choices = tabstops
5083 .iter()
5084 .map(|tabstop| tabstop.choices.clone())
5085 .collect();
5086
5087 let ranges = tabstops
5088 .into_iter()
5089 .map(|tabstop| tabstop.ranges)
5090 .collect::<Vec<_>>();
5091
5092 self.snippet_stack.push(SnippetState {
5093 active_index: 0,
5094 ranges,
5095 choices,
5096 });
5097 }
5098
5099 // Check whether the just-entered snippet ends with an auto-closable bracket.
5100 if self.autoclose_regions.is_empty() {
5101 let snapshot = self.buffer.read(cx).snapshot(cx);
5102 for selection in &mut self.selections.all::<Point>(cx) {
5103 let selection_head = selection.head();
5104 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5105 continue;
5106 };
5107
5108 let mut bracket_pair = None;
5109 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5110 let prev_chars = snapshot
5111 .reversed_chars_at(selection_head)
5112 .collect::<String>();
5113 for (pair, enabled) in scope.brackets() {
5114 if enabled
5115 && pair.close
5116 && prev_chars.starts_with(pair.start.as_str())
5117 && next_chars.starts_with(pair.end.as_str())
5118 {
5119 bracket_pair = Some(pair.clone());
5120 break;
5121 }
5122 }
5123 if let Some(pair) = bracket_pair {
5124 let start = snapshot.anchor_after(selection_head);
5125 let end = snapshot.anchor_after(selection_head);
5126 self.autoclose_regions.push(AutocloseRegion {
5127 selection_id: selection.id,
5128 range: start..end,
5129 pair,
5130 });
5131 }
5132 }
5133 }
5134 }
5135 Ok(())
5136 }
5137
5138 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5139 self.move_to_snippet_tabstop(Bias::Right, cx)
5140 }
5141
5142 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5143 self.move_to_snippet_tabstop(Bias::Left, cx)
5144 }
5145
5146 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5147 if let Some(mut snippet) = self.snippet_stack.pop() {
5148 match bias {
5149 Bias::Left => {
5150 if snippet.active_index > 0 {
5151 snippet.active_index -= 1;
5152 } else {
5153 self.snippet_stack.push(snippet);
5154 return false;
5155 }
5156 }
5157 Bias::Right => {
5158 if snippet.active_index + 1 < snippet.ranges.len() {
5159 snippet.active_index += 1;
5160 } else {
5161 self.snippet_stack.push(snippet);
5162 return false;
5163 }
5164 }
5165 }
5166 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5167 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5168 s.select_anchor_ranges(current_ranges.iter().cloned())
5169 });
5170
5171 if let Some(choices) = &snippet.choices[snippet.active_index] {
5172 if let Some(selection) = current_ranges.first() {
5173 self.show_snippet_choices(&choices, selection.clone(), cx);
5174 }
5175 }
5176
5177 // If snippet state is not at the last tabstop, push it back on the stack
5178 if snippet.active_index + 1 < snippet.ranges.len() {
5179 self.snippet_stack.push(snippet);
5180 }
5181 return true;
5182 }
5183 }
5184
5185 false
5186 }
5187
5188 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5189 self.transact(cx, |this, cx| {
5190 this.select_all(&SelectAll, cx);
5191 this.insert("", cx);
5192 });
5193 }
5194
5195 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5196 self.transact(cx, |this, cx| {
5197 this.select_autoclose_pair(cx);
5198 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5199 if !this.linked_edit_ranges.is_empty() {
5200 let selections = this.selections.all::<MultiBufferPoint>(cx);
5201 let snapshot = this.buffer.read(cx).snapshot(cx);
5202
5203 for selection in selections.iter() {
5204 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5205 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5206 if selection_start.buffer_id != selection_end.buffer_id {
5207 continue;
5208 }
5209 if let Some(ranges) =
5210 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5211 {
5212 for (buffer, entries) in ranges {
5213 linked_ranges.entry(buffer).or_default().extend(entries);
5214 }
5215 }
5216 }
5217 }
5218
5219 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5220 if !this.selections.line_mode {
5221 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5222 for selection in &mut selections {
5223 if selection.is_empty() {
5224 let old_head = selection.head();
5225 let mut new_head =
5226 movement::left(&display_map, old_head.to_display_point(&display_map))
5227 .to_point(&display_map);
5228 if let Some((buffer, line_buffer_range)) = display_map
5229 .buffer_snapshot
5230 .buffer_line_for_row(MultiBufferRow(old_head.row))
5231 {
5232 let indent_size =
5233 buffer.indent_size_for_line(line_buffer_range.start.row);
5234 let indent_len = match indent_size.kind {
5235 IndentKind::Space => {
5236 buffer.settings_at(line_buffer_range.start, cx).tab_size
5237 }
5238 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5239 };
5240 if old_head.column <= indent_size.len && old_head.column > 0 {
5241 let indent_len = indent_len.get();
5242 new_head = cmp::min(
5243 new_head,
5244 MultiBufferPoint::new(
5245 old_head.row,
5246 ((old_head.column - 1) / indent_len) * indent_len,
5247 ),
5248 );
5249 }
5250 }
5251
5252 selection.set_head(new_head, SelectionGoal::None);
5253 }
5254 }
5255 }
5256
5257 this.signature_help_state.set_backspace_pressed(true);
5258 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5259 this.insert("", cx);
5260 let empty_str: Arc<str> = Arc::from("");
5261 for (buffer, edits) in linked_ranges {
5262 let snapshot = buffer.read(cx).snapshot();
5263 use text::ToPoint as TP;
5264
5265 let edits = edits
5266 .into_iter()
5267 .map(|range| {
5268 let end_point = TP::to_point(&range.end, &snapshot);
5269 let mut start_point = TP::to_point(&range.start, &snapshot);
5270
5271 if end_point == start_point {
5272 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5273 .saturating_sub(1);
5274 start_point = TP::to_point(&offset, &snapshot);
5275 };
5276
5277 (start_point..end_point, empty_str.clone())
5278 })
5279 .sorted_by_key(|(range, _)| range.start)
5280 .collect::<Vec<_>>();
5281 buffer.update(cx, |this, cx| {
5282 this.edit(edits, None, cx);
5283 })
5284 }
5285 this.refresh_inline_completion(true, false, cx);
5286 linked_editing_ranges::refresh_linked_ranges(this, cx);
5287 });
5288 }
5289
5290 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5291 self.transact(cx, |this, cx| {
5292 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5293 let line_mode = s.line_mode;
5294 s.move_with(|map, selection| {
5295 if selection.is_empty() && !line_mode {
5296 let cursor = movement::right(map, selection.head());
5297 selection.end = cursor;
5298 selection.reversed = true;
5299 selection.goal = SelectionGoal::None;
5300 }
5301 })
5302 });
5303 this.insert("", cx);
5304 this.refresh_inline_completion(true, false, cx);
5305 });
5306 }
5307
5308 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5309 if self.move_to_prev_snippet_tabstop(cx) {
5310 return;
5311 }
5312
5313 self.outdent(&Outdent, cx);
5314 }
5315
5316 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5317 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5318 return;
5319 }
5320
5321 let mut selections = self.selections.all_adjusted(cx);
5322 let buffer = self.buffer.read(cx);
5323 let snapshot = buffer.snapshot(cx);
5324 let rows_iter = selections.iter().map(|s| s.head().row);
5325 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5326
5327 let mut edits = Vec::new();
5328 let mut prev_edited_row = 0;
5329 let mut row_delta = 0;
5330 for selection in &mut selections {
5331 if selection.start.row != prev_edited_row {
5332 row_delta = 0;
5333 }
5334 prev_edited_row = selection.end.row;
5335
5336 // If the selection is non-empty, then increase the indentation of the selected lines.
5337 if !selection.is_empty() {
5338 row_delta =
5339 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5340 continue;
5341 }
5342
5343 // If the selection is empty and the cursor is in the leading whitespace before the
5344 // suggested indentation, then auto-indent the line.
5345 let cursor = selection.head();
5346 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5347 if let Some(suggested_indent) =
5348 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5349 {
5350 if cursor.column < suggested_indent.len
5351 && cursor.column <= current_indent.len
5352 && current_indent.len <= suggested_indent.len
5353 {
5354 selection.start = Point::new(cursor.row, suggested_indent.len);
5355 selection.end = selection.start;
5356 if row_delta == 0 {
5357 edits.extend(Buffer::edit_for_indent_size_adjustment(
5358 cursor.row,
5359 current_indent,
5360 suggested_indent,
5361 ));
5362 row_delta = suggested_indent.len - current_indent.len;
5363 }
5364 continue;
5365 }
5366 }
5367
5368 // Otherwise, insert a hard or soft tab.
5369 let settings = buffer.settings_at(cursor, cx);
5370 let tab_size = if settings.hard_tabs {
5371 IndentSize::tab()
5372 } else {
5373 let tab_size = settings.tab_size.get();
5374 let char_column = snapshot
5375 .text_for_range(Point::new(cursor.row, 0)..cursor)
5376 .flat_map(str::chars)
5377 .count()
5378 + row_delta as usize;
5379 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5380 IndentSize::spaces(chars_to_next_tab_stop)
5381 };
5382 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5383 selection.end = selection.start;
5384 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5385 row_delta += tab_size.len;
5386 }
5387
5388 self.transact(cx, |this, cx| {
5389 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5390 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5391 this.refresh_inline_completion(true, false, cx);
5392 });
5393 }
5394
5395 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5396 if self.read_only(cx) {
5397 return;
5398 }
5399 let mut selections = self.selections.all::<Point>(cx);
5400 let mut prev_edited_row = 0;
5401 let mut row_delta = 0;
5402 let mut edits = Vec::new();
5403 let buffer = self.buffer.read(cx);
5404 let snapshot = buffer.snapshot(cx);
5405 for selection in &mut selections {
5406 if selection.start.row != prev_edited_row {
5407 row_delta = 0;
5408 }
5409 prev_edited_row = selection.end.row;
5410
5411 row_delta =
5412 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5413 }
5414
5415 self.transact(cx, |this, cx| {
5416 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5417 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5418 });
5419 }
5420
5421 fn indent_selection(
5422 buffer: &MultiBuffer,
5423 snapshot: &MultiBufferSnapshot,
5424 selection: &mut Selection<Point>,
5425 edits: &mut Vec<(Range<Point>, String)>,
5426 delta_for_start_row: u32,
5427 cx: &AppContext,
5428 ) -> u32 {
5429 let settings = buffer.settings_at(selection.start, cx);
5430 let tab_size = settings.tab_size.get();
5431 let indent_kind = if settings.hard_tabs {
5432 IndentKind::Tab
5433 } else {
5434 IndentKind::Space
5435 };
5436 let mut start_row = selection.start.row;
5437 let mut end_row = selection.end.row + 1;
5438
5439 // If a selection ends at the beginning of a line, don't indent
5440 // that last line.
5441 if selection.end.column == 0 && selection.end.row > selection.start.row {
5442 end_row -= 1;
5443 }
5444
5445 // Avoid re-indenting a row that has already been indented by a
5446 // previous selection, but still update this selection's column
5447 // to reflect that indentation.
5448 if delta_for_start_row > 0 {
5449 start_row += 1;
5450 selection.start.column += delta_for_start_row;
5451 if selection.end.row == selection.start.row {
5452 selection.end.column += delta_for_start_row;
5453 }
5454 }
5455
5456 let mut delta_for_end_row = 0;
5457 let has_multiple_rows = start_row + 1 != end_row;
5458 for row in start_row..end_row {
5459 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5460 let indent_delta = match (current_indent.kind, indent_kind) {
5461 (IndentKind::Space, IndentKind::Space) => {
5462 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5463 IndentSize::spaces(columns_to_next_tab_stop)
5464 }
5465 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5466 (_, IndentKind::Tab) => IndentSize::tab(),
5467 };
5468
5469 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5470 0
5471 } else {
5472 selection.start.column
5473 };
5474 let row_start = Point::new(row, start);
5475 edits.push((
5476 row_start..row_start,
5477 indent_delta.chars().collect::<String>(),
5478 ));
5479
5480 // Update this selection's endpoints to reflect the indentation.
5481 if row == selection.start.row {
5482 selection.start.column += indent_delta.len;
5483 }
5484 if row == selection.end.row {
5485 selection.end.column += indent_delta.len;
5486 delta_for_end_row = indent_delta.len;
5487 }
5488 }
5489
5490 if selection.start.row == selection.end.row {
5491 delta_for_start_row + delta_for_end_row
5492 } else {
5493 delta_for_end_row
5494 }
5495 }
5496
5497 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5498 if self.read_only(cx) {
5499 return;
5500 }
5501 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5502 let selections = self.selections.all::<Point>(cx);
5503 let mut deletion_ranges = Vec::new();
5504 let mut last_outdent = None;
5505 {
5506 let buffer = self.buffer.read(cx);
5507 let snapshot = buffer.snapshot(cx);
5508 for selection in &selections {
5509 let settings = buffer.settings_at(selection.start, cx);
5510 let tab_size = settings.tab_size.get();
5511 let mut rows = selection.spanned_rows(false, &display_map);
5512
5513 // Avoid re-outdenting a row that has already been outdented by a
5514 // previous selection.
5515 if let Some(last_row) = last_outdent {
5516 if last_row == rows.start {
5517 rows.start = rows.start.next_row();
5518 }
5519 }
5520 let has_multiple_rows = rows.len() > 1;
5521 for row in rows.iter_rows() {
5522 let indent_size = snapshot.indent_size_for_line(row);
5523 if indent_size.len > 0 {
5524 let deletion_len = match indent_size.kind {
5525 IndentKind::Space => {
5526 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5527 if columns_to_prev_tab_stop == 0 {
5528 tab_size
5529 } else {
5530 columns_to_prev_tab_stop
5531 }
5532 }
5533 IndentKind::Tab => 1,
5534 };
5535 let start = if has_multiple_rows
5536 || deletion_len > selection.start.column
5537 || indent_size.len < selection.start.column
5538 {
5539 0
5540 } else {
5541 selection.start.column - deletion_len
5542 };
5543 deletion_ranges.push(
5544 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5545 );
5546 last_outdent = Some(row);
5547 }
5548 }
5549 }
5550 }
5551
5552 self.transact(cx, |this, cx| {
5553 this.buffer.update(cx, |buffer, cx| {
5554 let empty_str: Arc<str> = Arc::default();
5555 buffer.edit(
5556 deletion_ranges
5557 .into_iter()
5558 .map(|range| (range, empty_str.clone())),
5559 None,
5560 cx,
5561 );
5562 });
5563 let selections = this.selections.all::<usize>(cx);
5564 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5565 });
5566 }
5567
5568 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5569 if self.read_only(cx) {
5570 return;
5571 }
5572 let selections = self
5573 .selections
5574 .all::<usize>(cx)
5575 .into_iter()
5576 .map(|s| s.range());
5577
5578 self.transact(cx, |this, cx| {
5579 this.buffer.update(cx, |buffer, cx| {
5580 buffer.autoindent_ranges(selections, cx);
5581 });
5582 let selections = this.selections.all::<usize>(cx);
5583 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5584 });
5585 }
5586
5587 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5588 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5589 let selections = self.selections.all::<Point>(cx);
5590
5591 let mut new_cursors = Vec::new();
5592 let mut edit_ranges = Vec::new();
5593 let mut selections = selections.iter().peekable();
5594 while let Some(selection) = selections.next() {
5595 let mut rows = selection.spanned_rows(false, &display_map);
5596 let goal_display_column = selection.head().to_display_point(&display_map).column();
5597
5598 // Accumulate contiguous regions of rows that we want to delete.
5599 while let Some(next_selection) = selections.peek() {
5600 let next_rows = next_selection.spanned_rows(false, &display_map);
5601 if next_rows.start <= rows.end {
5602 rows.end = next_rows.end;
5603 selections.next().unwrap();
5604 } else {
5605 break;
5606 }
5607 }
5608
5609 let buffer = &display_map.buffer_snapshot;
5610 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5611 let edit_end;
5612 let cursor_buffer_row;
5613 if buffer.max_point().row >= rows.end.0 {
5614 // If there's a line after the range, delete the \n from the end of the row range
5615 // and position the cursor on the next line.
5616 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5617 cursor_buffer_row = rows.end;
5618 } else {
5619 // If there isn't a line after the range, delete the \n from the line before the
5620 // start of the row range and position the cursor there.
5621 edit_start = edit_start.saturating_sub(1);
5622 edit_end = buffer.len();
5623 cursor_buffer_row = rows.start.previous_row();
5624 }
5625
5626 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5627 *cursor.column_mut() =
5628 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5629
5630 new_cursors.push((
5631 selection.id,
5632 buffer.anchor_after(cursor.to_point(&display_map)),
5633 ));
5634 edit_ranges.push(edit_start..edit_end);
5635 }
5636
5637 self.transact(cx, |this, cx| {
5638 let buffer = this.buffer.update(cx, |buffer, cx| {
5639 let empty_str: Arc<str> = Arc::default();
5640 buffer.edit(
5641 edit_ranges
5642 .into_iter()
5643 .map(|range| (range, empty_str.clone())),
5644 None,
5645 cx,
5646 );
5647 buffer.snapshot(cx)
5648 });
5649 let new_selections = new_cursors
5650 .into_iter()
5651 .map(|(id, cursor)| {
5652 let cursor = cursor.to_point(&buffer);
5653 Selection {
5654 id,
5655 start: cursor,
5656 end: cursor,
5657 reversed: false,
5658 goal: SelectionGoal::None,
5659 }
5660 })
5661 .collect();
5662
5663 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5664 s.select(new_selections);
5665 });
5666 });
5667 }
5668
5669 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5670 if self.read_only(cx) {
5671 return;
5672 }
5673 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5674 for selection in self.selections.all::<Point>(cx) {
5675 let start = MultiBufferRow(selection.start.row);
5676 // Treat single line selections as if they include the next line. Otherwise this action
5677 // would do nothing for single line selections individual cursors.
5678 let end = if selection.start.row == selection.end.row {
5679 MultiBufferRow(selection.start.row + 1)
5680 } else {
5681 MultiBufferRow(selection.end.row)
5682 };
5683
5684 if let Some(last_row_range) = row_ranges.last_mut() {
5685 if start <= last_row_range.end {
5686 last_row_range.end = end;
5687 continue;
5688 }
5689 }
5690 row_ranges.push(start..end);
5691 }
5692
5693 let snapshot = self.buffer.read(cx).snapshot(cx);
5694 let mut cursor_positions = Vec::new();
5695 for row_range in &row_ranges {
5696 let anchor = snapshot.anchor_before(Point::new(
5697 row_range.end.previous_row().0,
5698 snapshot.line_len(row_range.end.previous_row()),
5699 ));
5700 cursor_positions.push(anchor..anchor);
5701 }
5702
5703 self.transact(cx, |this, cx| {
5704 for row_range in row_ranges.into_iter().rev() {
5705 for row in row_range.iter_rows().rev() {
5706 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5707 let next_line_row = row.next_row();
5708 let indent = snapshot.indent_size_for_line(next_line_row);
5709 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5710
5711 let replace = if snapshot.line_len(next_line_row) > indent.len {
5712 " "
5713 } else {
5714 ""
5715 };
5716
5717 this.buffer.update(cx, |buffer, cx| {
5718 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5719 });
5720 }
5721 }
5722
5723 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5724 s.select_anchor_ranges(cursor_positions)
5725 });
5726 });
5727 }
5728
5729 pub fn sort_lines_case_sensitive(
5730 &mut self,
5731 _: &SortLinesCaseSensitive,
5732 cx: &mut ViewContext<Self>,
5733 ) {
5734 self.manipulate_lines(cx, |lines| lines.sort())
5735 }
5736
5737 pub fn sort_lines_case_insensitive(
5738 &mut self,
5739 _: &SortLinesCaseInsensitive,
5740 cx: &mut ViewContext<Self>,
5741 ) {
5742 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5743 }
5744
5745 pub fn unique_lines_case_insensitive(
5746 &mut self,
5747 _: &UniqueLinesCaseInsensitive,
5748 cx: &mut ViewContext<Self>,
5749 ) {
5750 self.manipulate_lines(cx, |lines| {
5751 let mut seen = HashSet::default();
5752 lines.retain(|line| seen.insert(line.to_lowercase()));
5753 })
5754 }
5755
5756 pub fn unique_lines_case_sensitive(
5757 &mut self,
5758 _: &UniqueLinesCaseSensitive,
5759 cx: &mut ViewContext<Self>,
5760 ) {
5761 self.manipulate_lines(cx, |lines| {
5762 let mut seen = HashSet::default();
5763 lines.retain(|line| seen.insert(*line));
5764 })
5765 }
5766
5767 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
5768 let mut revert_changes = HashMap::default();
5769 let snapshot = self.snapshot(cx);
5770 for hunk in hunks_for_ranges(
5771 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
5772 &snapshot,
5773 ) {
5774 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5775 }
5776 if !revert_changes.is_empty() {
5777 self.transact(cx, |editor, cx| {
5778 editor.revert(revert_changes, cx);
5779 });
5780 }
5781 }
5782
5783 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
5784 let Some(project) = self.project.clone() else {
5785 return;
5786 };
5787 self.reload(project, cx).detach_and_notify_err(cx);
5788 }
5789
5790 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5791 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
5792 if !revert_changes.is_empty() {
5793 self.transact(cx, |editor, cx| {
5794 editor.revert(revert_changes, cx);
5795 });
5796 }
5797 }
5798
5799 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
5800 let snapshot = self.buffer.read(cx).read(cx);
5801 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
5802 drop(snapshot);
5803 let mut revert_changes = HashMap::default();
5804 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5805 if !revert_changes.is_empty() {
5806 self.revert(revert_changes, cx)
5807 }
5808 }
5809 }
5810
5811 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5812 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5813 let project_path = buffer.read(cx).project_path(cx)?;
5814 let project = self.project.as_ref()?.read(cx);
5815 let entry = project.entry_for_path(&project_path, cx)?;
5816 let parent = match &entry.canonical_path {
5817 Some(canonical_path) => canonical_path.to_path_buf(),
5818 None => project.absolute_path(&project_path, cx)?,
5819 }
5820 .parent()?
5821 .to_path_buf();
5822 Some(parent)
5823 }) {
5824 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5825 }
5826 }
5827
5828 fn gather_revert_changes(
5829 &mut self,
5830 selections: &[Selection<Point>],
5831 cx: &mut ViewContext<'_, Editor>,
5832 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5833 let mut revert_changes = HashMap::default();
5834 let snapshot = self.snapshot(cx);
5835 for hunk in hunks_for_selections(&snapshot, selections) {
5836 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5837 }
5838 revert_changes
5839 }
5840
5841 pub fn prepare_revert_change(
5842 &mut self,
5843 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5844 hunk: &MultiBufferDiffHunk,
5845 cx: &AppContext,
5846 ) -> Option<()> {
5847 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
5848 let buffer = buffer.read(cx);
5849 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
5850 let original_text = change_set
5851 .read(cx)
5852 .base_text
5853 .as_ref()?
5854 .read(cx)
5855 .as_rope()
5856 .slice(hunk.diff_base_byte_range.clone());
5857 let buffer_snapshot = buffer.snapshot();
5858 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5859 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5860 probe
5861 .0
5862 .start
5863 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5864 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5865 }) {
5866 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5867 Some(())
5868 } else {
5869 None
5870 }
5871 }
5872
5873 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5874 self.manipulate_lines(cx, |lines| lines.reverse())
5875 }
5876
5877 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5878 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5879 }
5880
5881 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5882 where
5883 Fn: FnMut(&mut Vec<&str>),
5884 {
5885 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5886 let buffer = self.buffer.read(cx).snapshot(cx);
5887
5888 let mut edits = Vec::new();
5889
5890 let selections = self.selections.all::<Point>(cx);
5891 let mut selections = selections.iter().peekable();
5892 let mut contiguous_row_selections = Vec::new();
5893 let mut new_selections = Vec::new();
5894 let mut added_lines = 0;
5895 let mut removed_lines = 0;
5896
5897 while let Some(selection) = selections.next() {
5898 let (start_row, end_row) = consume_contiguous_rows(
5899 &mut contiguous_row_selections,
5900 selection,
5901 &display_map,
5902 &mut selections,
5903 );
5904
5905 let start_point = Point::new(start_row.0, 0);
5906 let end_point = Point::new(
5907 end_row.previous_row().0,
5908 buffer.line_len(end_row.previous_row()),
5909 );
5910 let text = buffer
5911 .text_for_range(start_point..end_point)
5912 .collect::<String>();
5913
5914 let mut lines = text.split('\n').collect_vec();
5915
5916 let lines_before = lines.len();
5917 callback(&mut lines);
5918 let lines_after = lines.len();
5919
5920 edits.push((start_point..end_point, lines.join("\n")));
5921
5922 // Selections must change based on added and removed line count
5923 let start_row =
5924 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5925 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5926 new_selections.push(Selection {
5927 id: selection.id,
5928 start: start_row,
5929 end: end_row,
5930 goal: SelectionGoal::None,
5931 reversed: selection.reversed,
5932 });
5933
5934 if lines_after > lines_before {
5935 added_lines += lines_after - lines_before;
5936 } else if lines_before > lines_after {
5937 removed_lines += lines_before - lines_after;
5938 }
5939 }
5940
5941 self.transact(cx, |this, cx| {
5942 let buffer = this.buffer.update(cx, |buffer, cx| {
5943 buffer.edit(edits, None, cx);
5944 buffer.snapshot(cx)
5945 });
5946
5947 // Recalculate offsets on newly edited buffer
5948 let new_selections = new_selections
5949 .iter()
5950 .map(|s| {
5951 let start_point = Point::new(s.start.0, 0);
5952 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5953 Selection {
5954 id: s.id,
5955 start: buffer.point_to_offset(start_point),
5956 end: buffer.point_to_offset(end_point),
5957 goal: s.goal,
5958 reversed: s.reversed,
5959 }
5960 })
5961 .collect();
5962
5963 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5964 s.select(new_selections);
5965 });
5966
5967 this.request_autoscroll(Autoscroll::fit(), cx);
5968 });
5969 }
5970
5971 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5972 self.manipulate_text(cx, |text| text.to_uppercase())
5973 }
5974
5975 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5976 self.manipulate_text(cx, |text| text.to_lowercase())
5977 }
5978
5979 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5980 self.manipulate_text(cx, |text| {
5981 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5982 // https://github.com/rutrum/convert-case/issues/16
5983 text.split('\n')
5984 .map(|line| line.to_case(Case::Title))
5985 .join("\n")
5986 })
5987 }
5988
5989 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5990 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5991 }
5992
5993 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5994 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5995 }
5996
5997 pub fn convert_to_upper_camel_case(
5998 &mut self,
5999 _: &ConvertToUpperCamelCase,
6000 cx: &mut ViewContext<Self>,
6001 ) {
6002 self.manipulate_text(cx, |text| {
6003 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6004 // https://github.com/rutrum/convert-case/issues/16
6005 text.split('\n')
6006 .map(|line| line.to_case(Case::UpperCamel))
6007 .join("\n")
6008 })
6009 }
6010
6011 pub fn convert_to_lower_camel_case(
6012 &mut self,
6013 _: &ConvertToLowerCamelCase,
6014 cx: &mut ViewContext<Self>,
6015 ) {
6016 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6017 }
6018
6019 pub fn convert_to_opposite_case(
6020 &mut self,
6021 _: &ConvertToOppositeCase,
6022 cx: &mut ViewContext<Self>,
6023 ) {
6024 self.manipulate_text(cx, |text| {
6025 text.chars()
6026 .fold(String::with_capacity(text.len()), |mut t, c| {
6027 if c.is_uppercase() {
6028 t.extend(c.to_lowercase());
6029 } else {
6030 t.extend(c.to_uppercase());
6031 }
6032 t
6033 })
6034 })
6035 }
6036
6037 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6038 where
6039 Fn: FnMut(&str) -> String,
6040 {
6041 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6042 let buffer = self.buffer.read(cx).snapshot(cx);
6043
6044 let mut new_selections = Vec::new();
6045 let mut edits = Vec::new();
6046 let mut selection_adjustment = 0i32;
6047
6048 for selection in self.selections.all::<usize>(cx) {
6049 let selection_is_empty = selection.is_empty();
6050
6051 let (start, end) = if selection_is_empty {
6052 let word_range = movement::surrounding_word(
6053 &display_map,
6054 selection.start.to_display_point(&display_map),
6055 );
6056 let start = word_range.start.to_offset(&display_map, Bias::Left);
6057 let end = word_range.end.to_offset(&display_map, Bias::Left);
6058 (start, end)
6059 } else {
6060 (selection.start, selection.end)
6061 };
6062
6063 let text = buffer.text_for_range(start..end).collect::<String>();
6064 let old_length = text.len() as i32;
6065 let text = callback(&text);
6066
6067 new_selections.push(Selection {
6068 start: (start as i32 - selection_adjustment) as usize,
6069 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6070 goal: SelectionGoal::None,
6071 ..selection
6072 });
6073
6074 selection_adjustment += old_length - text.len() as i32;
6075
6076 edits.push((start..end, text));
6077 }
6078
6079 self.transact(cx, |this, cx| {
6080 this.buffer.update(cx, |buffer, cx| {
6081 buffer.edit(edits, None, cx);
6082 });
6083
6084 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6085 s.select(new_selections);
6086 });
6087
6088 this.request_autoscroll(Autoscroll::fit(), cx);
6089 });
6090 }
6091
6092 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6093 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6094 let buffer = &display_map.buffer_snapshot;
6095 let selections = self.selections.all::<Point>(cx);
6096
6097 let mut edits = Vec::new();
6098 let mut selections_iter = selections.iter().peekable();
6099 while let Some(selection) = selections_iter.next() {
6100 // Avoid duplicating the same lines twice.
6101 let mut rows = selection.spanned_rows(false, &display_map);
6102
6103 while let Some(next_selection) = selections_iter.peek() {
6104 let next_rows = next_selection.spanned_rows(false, &display_map);
6105 if next_rows.start < rows.end {
6106 rows.end = next_rows.end;
6107 selections_iter.next().unwrap();
6108 } else {
6109 break;
6110 }
6111 }
6112
6113 // Copy the text from the selected row region and splice it either at the start
6114 // or end of the region.
6115 let start = Point::new(rows.start.0, 0);
6116 let end = Point::new(
6117 rows.end.previous_row().0,
6118 buffer.line_len(rows.end.previous_row()),
6119 );
6120 let text = buffer
6121 .text_for_range(start..end)
6122 .chain(Some("\n"))
6123 .collect::<String>();
6124 let insert_location = if upwards {
6125 Point::new(rows.end.0, 0)
6126 } else {
6127 start
6128 };
6129 edits.push((insert_location..insert_location, text));
6130 }
6131
6132 self.transact(cx, |this, cx| {
6133 this.buffer.update(cx, |buffer, cx| {
6134 buffer.edit(edits, None, cx);
6135 });
6136
6137 this.request_autoscroll(Autoscroll::fit(), cx);
6138 });
6139 }
6140
6141 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6142 self.duplicate_line(true, cx);
6143 }
6144
6145 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6146 self.duplicate_line(false, cx);
6147 }
6148
6149 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6150 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6151 let buffer = self.buffer.read(cx).snapshot(cx);
6152
6153 let mut edits = Vec::new();
6154 let mut unfold_ranges = Vec::new();
6155 let mut refold_creases = Vec::new();
6156
6157 let selections = self.selections.all::<Point>(cx);
6158 let mut selections = selections.iter().peekable();
6159 let mut contiguous_row_selections = Vec::new();
6160 let mut new_selections = Vec::new();
6161
6162 while let Some(selection) = selections.next() {
6163 // Find all the selections that span a contiguous row range
6164 let (start_row, end_row) = consume_contiguous_rows(
6165 &mut contiguous_row_selections,
6166 selection,
6167 &display_map,
6168 &mut selections,
6169 );
6170
6171 // Move the text spanned by the row range to be before the line preceding the row range
6172 if start_row.0 > 0 {
6173 let range_to_move = Point::new(
6174 start_row.previous_row().0,
6175 buffer.line_len(start_row.previous_row()),
6176 )
6177 ..Point::new(
6178 end_row.previous_row().0,
6179 buffer.line_len(end_row.previous_row()),
6180 );
6181 let insertion_point = display_map
6182 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6183 .0;
6184
6185 // Don't move lines across excerpts
6186 if buffer
6187 .excerpt_boundaries_in_range((
6188 Bound::Excluded(insertion_point),
6189 Bound::Included(range_to_move.end),
6190 ))
6191 .next()
6192 .is_none()
6193 {
6194 let text = buffer
6195 .text_for_range(range_to_move.clone())
6196 .flat_map(|s| s.chars())
6197 .skip(1)
6198 .chain(['\n'])
6199 .collect::<String>();
6200
6201 edits.push((
6202 buffer.anchor_after(range_to_move.start)
6203 ..buffer.anchor_before(range_to_move.end),
6204 String::new(),
6205 ));
6206 let insertion_anchor = buffer.anchor_after(insertion_point);
6207 edits.push((insertion_anchor..insertion_anchor, text));
6208
6209 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6210
6211 // Move selections up
6212 new_selections.extend(contiguous_row_selections.drain(..).map(
6213 |mut selection| {
6214 selection.start.row -= row_delta;
6215 selection.end.row -= row_delta;
6216 selection
6217 },
6218 ));
6219
6220 // Move folds up
6221 unfold_ranges.push(range_to_move.clone());
6222 for fold in display_map.folds_in_range(
6223 buffer.anchor_before(range_to_move.start)
6224 ..buffer.anchor_after(range_to_move.end),
6225 ) {
6226 let mut start = fold.range.start.to_point(&buffer);
6227 let mut end = fold.range.end.to_point(&buffer);
6228 start.row -= row_delta;
6229 end.row -= row_delta;
6230 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6231 }
6232 }
6233 }
6234
6235 // If we didn't move line(s), preserve the existing selections
6236 new_selections.append(&mut contiguous_row_selections);
6237 }
6238
6239 self.transact(cx, |this, cx| {
6240 this.unfold_ranges(&unfold_ranges, true, true, cx);
6241 this.buffer.update(cx, |buffer, cx| {
6242 for (range, text) in edits {
6243 buffer.edit([(range, text)], None, cx);
6244 }
6245 });
6246 this.fold_creases(refold_creases, true, cx);
6247 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6248 s.select(new_selections);
6249 })
6250 });
6251 }
6252
6253 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6254 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6255 let buffer = self.buffer.read(cx).snapshot(cx);
6256
6257 let mut edits = Vec::new();
6258 let mut unfold_ranges = Vec::new();
6259 let mut refold_creases = Vec::new();
6260
6261 let selections = self.selections.all::<Point>(cx);
6262 let mut selections = selections.iter().peekable();
6263 let mut contiguous_row_selections = Vec::new();
6264 let mut new_selections = Vec::new();
6265
6266 while let Some(selection) = selections.next() {
6267 // Find all the selections that span a contiguous row range
6268 let (start_row, end_row) = consume_contiguous_rows(
6269 &mut contiguous_row_selections,
6270 selection,
6271 &display_map,
6272 &mut selections,
6273 );
6274
6275 // Move the text spanned by the row range to be after the last line of the row range
6276 if end_row.0 <= buffer.max_point().row {
6277 let range_to_move =
6278 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6279 let insertion_point = display_map
6280 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6281 .0;
6282
6283 // Don't move lines across excerpt boundaries
6284 if buffer
6285 .excerpt_boundaries_in_range((
6286 Bound::Excluded(range_to_move.start),
6287 Bound::Included(insertion_point),
6288 ))
6289 .next()
6290 .is_none()
6291 {
6292 let mut text = String::from("\n");
6293 text.extend(buffer.text_for_range(range_to_move.clone()));
6294 text.pop(); // Drop trailing newline
6295 edits.push((
6296 buffer.anchor_after(range_to_move.start)
6297 ..buffer.anchor_before(range_to_move.end),
6298 String::new(),
6299 ));
6300 let insertion_anchor = buffer.anchor_after(insertion_point);
6301 edits.push((insertion_anchor..insertion_anchor, text));
6302
6303 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6304
6305 // Move selections down
6306 new_selections.extend(contiguous_row_selections.drain(..).map(
6307 |mut selection| {
6308 selection.start.row += row_delta;
6309 selection.end.row += row_delta;
6310 selection
6311 },
6312 ));
6313
6314 // Move folds down
6315 unfold_ranges.push(range_to_move.clone());
6316 for fold in display_map.folds_in_range(
6317 buffer.anchor_before(range_to_move.start)
6318 ..buffer.anchor_after(range_to_move.end),
6319 ) {
6320 let mut start = fold.range.start.to_point(&buffer);
6321 let mut end = fold.range.end.to_point(&buffer);
6322 start.row += row_delta;
6323 end.row += row_delta;
6324 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6325 }
6326 }
6327 }
6328
6329 // If we didn't move line(s), preserve the existing selections
6330 new_selections.append(&mut contiguous_row_selections);
6331 }
6332
6333 self.transact(cx, |this, cx| {
6334 this.unfold_ranges(&unfold_ranges, true, true, cx);
6335 this.buffer.update(cx, |buffer, cx| {
6336 for (range, text) in edits {
6337 buffer.edit([(range, text)], None, cx);
6338 }
6339 });
6340 this.fold_creases(refold_creases, true, cx);
6341 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6342 });
6343 }
6344
6345 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6346 let text_layout_details = &self.text_layout_details(cx);
6347 self.transact(cx, |this, cx| {
6348 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6349 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6350 let line_mode = s.line_mode;
6351 s.move_with(|display_map, selection| {
6352 if !selection.is_empty() || line_mode {
6353 return;
6354 }
6355
6356 let mut head = selection.head();
6357 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6358 if head.column() == display_map.line_len(head.row()) {
6359 transpose_offset = display_map
6360 .buffer_snapshot
6361 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6362 }
6363
6364 if transpose_offset == 0 {
6365 return;
6366 }
6367
6368 *head.column_mut() += 1;
6369 head = display_map.clip_point(head, Bias::Right);
6370 let goal = SelectionGoal::HorizontalPosition(
6371 display_map
6372 .x_for_display_point(head, text_layout_details)
6373 .into(),
6374 );
6375 selection.collapse_to(head, goal);
6376
6377 let transpose_start = display_map
6378 .buffer_snapshot
6379 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6380 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6381 let transpose_end = display_map
6382 .buffer_snapshot
6383 .clip_offset(transpose_offset + 1, Bias::Right);
6384 if let Some(ch) =
6385 display_map.buffer_snapshot.chars_at(transpose_start).next()
6386 {
6387 edits.push((transpose_start..transpose_offset, String::new()));
6388 edits.push((transpose_end..transpose_end, ch.to_string()));
6389 }
6390 }
6391 });
6392 edits
6393 });
6394 this.buffer
6395 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6396 let selections = this.selections.all::<usize>(cx);
6397 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6398 s.select(selections);
6399 });
6400 });
6401 }
6402
6403 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6404 self.rewrap_impl(IsVimMode::No, cx)
6405 }
6406
6407 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6408 let buffer = self.buffer.read(cx).snapshot(cx);
6409 let selections = self.selections.all::<Point>(cx);
6410 let mut selections = selections.iter().peekable();
6411
6412 let mut edits = Vec::new();
6413 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6414
6415 while let Some(selection) = selections.next() {
6416 let mut start_row = selection.start.row;
6417 let mut end_row = selection.end.row;
6418
6419 // Skip selections that overlap with a range that has already been rewrapped.
6420 let selection_range = start_row..end_row;
6421 if rewrapped_row_ranges
6422 .iter()
6423 .any(|range| range.overlaps(&selection_range))
6424 {
6425 continue;
6426 }
6427
6428 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6429
6430 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6431 match language_scope.language_name().0.as_ref() {
6432 "Markdown" | "Plain Text" => {
6433 should_rewrap = true;
6434 }
6435 _ => {}
6436 }
6437 }
6438
6439 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6440
6441 // Since not all lines in the selection may be at the same indent
6442 // level, choose the indent size that is the most common between all
6443 // of the lines.
6444 //
6445 // If there is a tie, we use the deepest indent.
6446 let (indent_size, indent_end) = {
6447 let mut indent_size_occurrences = HashMap::default();
6448 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6449
6450 for row in start_row..=end_row {
6451 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6452 rows_by_indent_size.entry(indent).or_default().push(row);
6453 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6454 }
6455
6456 let indent_size = indent_size_occurrences
6457 .into_iter()
6458 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6459 .map(|(indent, _)| indent)
6460 .unwrap_or_default();
6461 let row = rows_by_indent_size[&indent_size][0];
6462 let indent_end = Point::new(row, indent_size.len);
6463
6464 (indent_size, indent_end)
6465 };
6466
6467 let mut line_prefix = indent_size.chars().collect::<String>();
6468
6469 if let Some(comment_prefix) =
6470 buffer
6471 .language_scope_at(selection.head())
6472 .and_then(|language| {
6473 language
6474 .line_comment_prefixes()
6475 .iter()
6476 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6477 .cloned()
6478 })
6479 {
6480 line_prefix.push_str(&comment_prefix);
6481 should_rewrap = true;
6482 }
6483
6484 if !should_rewrap {
6485 continue;
6486 }
6487
6488 if selection.is_empty() {
6489 'expand_upwards: while start_row > 0 {
6490 let prev_row = start_row - 1;
6491 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6492 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6493 {
6494 start_row = prev_row;
6495 } else {
6496 break 'expand_upwards;
6497 }
6498 }
6499
6500 'expand_downwards: while end_row < buffer.max_point().row {
6501 let next_row = end_row + 1;
6502 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6503 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6504 {
6505 end_row = next_row;
6506 } else {
6507 break 'expand_downwards;
6508 }
6509 }
6510 }
6511
6512 let start = Point::new(start_row, 0);
6513 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6514 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6515 let Some(lines_without_prefixes) = selection_text
6516 .lines()
6517 .map(|line| {
6518 line.strip_prefix(&line_prefix)
6519 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6520 .ok_or_else(|| {
6521 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6522 })
6523 })
6524 .collect::<Result<Vec<_>, _>>()
6525 .log_err()
6526 else {
6527 continue;
6528 };
6529
6530 let wrap_column = buffer
6531 .settings_at(Point::new(start_row, 0), cx)
6532 .preferred_line_length as usize;
6533 let wrapped_text = wrap_with_prefix(
6534 line_prefix,
6535 lines_without_prefixes.join(" "),
6536 wrap_column,
6537 tab_size,
6538 );
6539
6540 // TODO: should always use char-based diff while still supporting cursor behavior that
6541 // matches vim.
6542 let diff = match is_vim_mode {
6543 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6544 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6545 };
6546 let mut offset = start.to_offset(&buffer);
6547 let mut moved_since_edit = true;
6548
6549 for change in diff.iter_all_changes() {
6550 let value = change.value();
6551 match change.tag() {
6552 ChangeTag::Equal => {
6553 offset += value.len();
6554 moved_since_edit = true;
6555 }
6556 ChangeTag::Delete => {
6557 let start = buffer.anchor_after(offset);
6558 let end = buffer.anchor_before(offset + value.len());
6559
6560 if moved_since_edit {
6561 edits.push((start..end, String::new()));
6562 } else {
6563 edits.last_mut().unwrap().0.end = end;
6564 }
6565
6566 offset += value.len();
6567 moved_since_edit = false;
6568 }
6569 ChangeTag::Insert => {
6570 if moved_since_edit {
6571 let anchor = buffer.anchor_after(offset);
6572 edits.push((anchor..anchor, value.to_string()));
6573 } else {
6574 edits.last_mut().unwrap().1.push_str(value);
6575 }
6576
6577 moved_since_edit = false;
6578 }
6579 }
6580 }
6581
6582 rewrapped_row_ranges.push(start_row..=end_row);
6583 }
6584
6585 self.buffer
6586 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6587 }
6588
6589 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6590 let mut text = String::new();
6591 let buffer = self.buffer.read(cx).snapshot(cx);
6592 let mut selections = self.selections.all::<Point>(cx);
6593 let mut clipboard_selections = Vec::with_capacity(selections.len());
6594 {
6595 let max_point = buffer.max_point();
6596 let mut is_first = true;
6597 for selection in &mut selections {
6598 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6599 if is_entire_line {
6600 selection.start = Point::new(selection.start.row, 0);
6601 if !selection.is_empty() && selection.end.column == 0 {
6602 selection.end = cmp::min(max_point, selection.end);
6603 } else {
6604 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6605 }
6606 selection.goal = SelectionGoal::None;
6607 }
6608 if is_first {
6609 is_first = false;
6610 } else {
6611 text += "\n";
6612 }
6613 let mut len = 0;
6614 for chunk in buffer.text_for_range(selection.start..selection.end) {
6615 text.push_str(chunk);
6616 len += chunk.len();
6617 }
6618 clipboard_selections.push(ClipboardSelection {
6619 len,
6620 is_entire_line,
6621 first_line_indent: buffer
6622 .indent_size_for_line(MultiBufferRow(selection.start.row))
6623 .len,
6624 });
6625 }
6626 }
6627
6628 self.transact(cx, |this, cx| {
6629 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6630 s.select(selections);
6631 });
6632 this.insert("", cx);
6633 });
6634 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6635 }
6636
6637 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6638 let item = self.cut_common(cx);
6639 cx.write_to_clipboard(item);
6640 }
6641
6642 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6643 self.change_selections(None, cx, |s| {
6644 s.move_with(|snapshot, sel| {
6645 if sel.is_empty() {
6646 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6647 }
6648 });
6649 });
6650 let item = self.cut_common(cx);
6651 cx.set_global(KillRing(item))
6652 }
6653
6654 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6655 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6656 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6657 (kill_ring.text().to_string(), kill_ring.metadata_json())
6658 } else {
6659 return;
6660 }
6661 } else {
6662 return;
6663 };
6664 self.do_paste(&text, metadata, false, cx);
6665 }
6666
6667 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6668 let selections = self.selections.all::<Point>(cx);
6669 let buffer = self.buffer.read(cx).read(cx);
6670 let mut text = String::new();
6671
6672 let mut clipboard_selections = Vec::with_capacity(selections.len());
6673 {
6674 let max_point = buffer.max_point();
6675 let mut is_first = true;
6676 for selection in selections.iter() {
6677 let mut start = selection.start;
6678 let mut end = selection.end;
6679 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6680 if is_entire_line {
6681 start = Point::new(start.row, 0);
6682 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6683 }
6684 if is_first {
6685 is_first = false;
6686 } else {
6687 text += "\n";
6688 }
6689 let mut len = 0;
6690 for chunk in buffer.text_for_range(start..end) {
6691 text.push_str(chunk);
6692 len += chunk.len();
6693 }
6694 clipboard_selections.push(ClipboardSelection {
6695 len,
6696 is_entire_line,
6697 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6698 });
6699 }
6700 }
6701
6702 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6703 text,
6704 clipboard_selections,
6705 ));
6706 }
6707
6708 pub fn do_paste(
6709 &mut self,
6710 text: &String,
6711 clipboard_selections: Option<Vec<ClipboardSelection>>,
6712 handle_entire_lines: bool,
6713 cx: &mut ViewContext<Self>,
6714 ) {
6715 if self.read_only(cx) {
6716 return;
6717 }
6718
6719 let clipboard_text = Cow::Borrowed(text);
6720
6721 self.transact(cx, |this, cx| {
6722 if let Some(mut clipboard_selections) = clipboard_selections {
6723 let old_selections = this.selections.all::<usize>(cx);
6724 let all_selections_were_entire_line =
6725 clipboard_selections.iter().all(|s| s.is_entire_line);
6726 let first_selection_indent_column =
6727 clipboard_selections.first().map(|s| s.first_line_indent);
6728 if clipboard_selections.len() != old_selections.len() {
6729 clipboard_selections.drain(..);
6730 }
6731 let cursor_offset = this.selections.last::<usize>(cx).head();
6732 let mut auto_indent_on_paste = true;
6733
6734 this.buffer.update(cx, |buffer, cx| {
6735 let snapshot = buffer.read(cx);
6736 auto_indent_on_paste =
6737 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6738
6739 let mut start_offset = 0;
6740 let mut edits = Vec::new();
6741 let mut original_indent_columns = Vec::new();
6742 for (ix, selection) in old_selections.iter().enumerate() {
6743 let to_insert;
6744 let entire_line;
6745 let original_indent_column;
6746 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6747 let end_offset = start_offset + clipboard_selection.len;
6748 to_insert = &clipboard_text[start_offset..end_offset];
6749 entire_line = clipboard_selection.is_entire_line;
6750 start_offset = end_offset + 1;
6751 original_indent_column = Some(clipboard_selection.first_line_indent);
6752 } else {
6753 to_insert = clipboard_text.as_str();
6754 entire_line = all_selections_were_entire_line;
6755 original_indent_column = first_selection_indent_column
6756 }
6757
6758 // If the corresponding selection was empty when this slice of the
6759 // clipboard text was written, then the entire line containing the
6760 // selection was copied. If this selection is also currently empty,
6761 // then paste the line before the current line of the buffer.
6762 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6763 let column = selection.start.to_point(&snapshot).column as usize;
6764 let line_start = selection.start - column;
6765 line_start..line_start
6766 } else {
6767 selection.range()
6768 };
6769
6770 edits.push((range, to_insert));
6771 original_indent_columns.extend(original_indent_column);
6772 }
6773 drop(snapshot);
6774
6775 buffer.edit(
6776 edits,
6777 if auto_indent_on_paste {
6778 Some(AutoindentMode::Block {
6779 original_indent_columns,
6780 })
6781 } else {
6782 None
6783 },
6784 cx,
6785 );
6786 });
6787
6788 let selections = this.selections.all::<usize>(cx);
6789 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6790 } else {
6791 this.insert(&clipboard_text, cx);
6792 }
6793 });
6794 }
6795
6796 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6797 if let Some(item) = cx.read_from_clipboard() {
6798 let entries = item.entries();
6799
6800 match entries.first() {
6801 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
6802 // of all the pasted entries.
6803 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
6804 .do_paste(
6805 clipboard_string.text(),
6806 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
6807 true,
6808 cx,
6809 ),
6810 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
6811 }
6812 }
6813 }
6814
6815 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6816 if self.read_only(cx) {
6817 return;
6818 }
6819
6820 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6821 if let Some((selections, _)) =
6822 self.selection_history.transaction(transaction_id).cloned()
6823 {
6824 self.change_selections(None, cx, |s| {
6825 s.select_anchors(selections.to_vec());
6826 });
6827 }
6828 self.request_autoscroll(Autoscroll::fit(), cx);
6829 self.unmark_text(cx);
6830 self.refresh_inline_completion(true, false, cx);
6831 cx.emit(EditorEvent::Edited { transaction_id });
6832 cx.emit(EditorEvent::TransactionUndone { transaction_id });
6833 }
6834 }
6835
6836 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6837 if self.read_only(cx) {
6838 return;
6839 }
6840
6841 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6842 if let Some((_, Some(selections))) =
6843 self.selection_history.transaction(transaction_id).cloned()
6844 {
6845 self.change_selections(None, cx, |s| {
6846 s.select_anchors(selections.to_vec());
6847 });
6848 }
6849 self.request_autoscroll(Autoscroll::fit(), cx);
6850 self.unmark_text(cx);
6851 self.refresh_inline_completion(true, false, cx);
6852 cx.emit(EditorEvent::Edited { transaction_id });
6853 }
6854 }
6855
6856 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6857 self.buffer
6858 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6859 }
6860
6861 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6862 self.buffer
6863 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6864 }
6865
6866 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6867 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6868 let line_mode = s.line_mode;
6869 s.move_with(|map, selection| {
6870 let cursor = if selection.is_empty() && !line_mode {
6871 movement::left(map, selection.start)
6872 } else {
6873 selection.start
6874 };
6875 selection.collapse_to(cursor, SelectionGoal::None);
6876 });
6877 })
6878 }
6879
6880 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6881 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6882 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6883 })
6884 }
6885
6886 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6887 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6888 let line_mode = s.line_mode;
6889 s.move_with(|map, selection| {
6890 let cursor = if selection.is_empty() && !line_mode {
6891 movement::right(map, selection.end)
6892 } else {
6893 selection.end
6894 };
6895 selection.collapse_to(cursor, SelectionGoal::None)
6896 });
6897 })
6898 }
6899
6900 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6901 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6902 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6903 })
6904 }
6905
6906 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6907 if self.take_rename(true, cx).is_some() {
6908 return;
6909 }
6910
6911 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6912 cx.propagate();
6913 return;
6914 }
6915
6916 let text_layout_details = &self.text_layout_details(cx);
6917 let selection_count = self.selections.count();
6918 let first_selection = self.selections.first_anchor();
6919
6920 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6921 let line_mode = s.line_mode;
6922 s.move_with(|map, selection| {
6923 if !selection.is_empty() && !line_mode {
6924 selection.goal = SelectionGoal::None;
6925 }
6926 let (cursor, goal) = movement::up(
6927 map,
6928 selection.start,
6929 selection.goal,
6930 false,
6931 text_layout_details,
6932 );
6933 selection.collapse_to(cursor, goal);
6934 });
6935 });
6936
6937 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6938 {
6939 cx.propagate();
6940 }
6941 }
6942
6943 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6944 if self.take_rename(true, cx).is_some() {
6945 return;
6946 }
6947
6948 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6949 cx.propagate();
6950 return;
6951 }
6952
6953 let text_layout_details = &self.text_layout_details(cx);
6954
6955 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6956 let line_mode = s.line_mode;
6957 s.move_with(|map, selection| {
6958 if !selection.is_empty() && !line_mode {
6959 selection.goal = SelectionGoal::None;
6960 }
6961 let (cursor, goal) = movement::up_by_rows(
6962 map,
6963 selection.start,
6964 action.lines,
6965 selection.goal,
6966 false,
6967 text_layout_details,
6968 );
6969 selection.collapse_to(cursor, goal);
6970 });
6971 })
6972 }
6973
6974 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6975 if self.take_rename(true, cx).is_some() {
6976 return;
6977 }
6978
6979 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6980 cx.propagate();
6981 return;
6982 }
6983
6984 let text_layout_details = &self.text_layout_details(cx);
6985
6986 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6987 let line_mode = s.line_mode;
6988 s.move_with(|map, selection| {
6989 if !selection.is_empty() && !line_mode {
6990 selection.goal = SelectionGoal::None;
6991 }
6992 let (cursor, goal) = movement::down_by_rows(
6993 map,
6994 selection.start,
6995 action.lines,
6996 selection.goal,
6997 false,
6998 text_layout_details,
6999 );
7000 selection.collapse_to(cursor, goal);
7001 });
7002 })
7003 }
7004
7005 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7006 let text_layout_details = &self.text_layout_details(cx);
7007 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7008 s.move_heads_with(|map, head, goal| {
7009 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7010 })
7011 })
7012 }
7013
7014 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7015 let text_layout_details = &self.text_layout_details(cx);
7016 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7017 s.move_heads_with(|map, head, goal| {
7018 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7019 })
7020 })
7021 }
7022
7023 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7024 let Some(row_count) = self.visible_row_count() else {
7025 return;
7026 };
7027
7028 let text_layout_details = &self.text_layout_details(cx);
7029
7030 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7031 s.move_heads_with(|map, head, goal| {
7032 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7033 })
7034 })
7035 }
7036
7037 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7038 if self.take_rename(true, cx).is_some() {
7039 return;
7040 }
7041
7042 if self
7043 .context_menu
7044 .write()
7045 .as_mut()
7046 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7047 .unwrap_or(false)
7048 {
7049 return;
7050 }
7051
7052 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7053 cx.propagate();
7054 return;
7055 }
7056
7057 let Some(row_count) = self.visible_row_count() else {
7058 return;
7059 };
7060
7061 let autoscroll = if action.center_cursor {
7062 Autoscroll::center()
7063 } else {
7064 Autoscroll::fit()
7065 };
7066
7067 let text_layout_details = &self.text_layout_details(cx);
7068
7069 self.change_selections(Some(autoscroll), cx, |s| {
7070 let line_mode = s.line_mode;
7071 s.move_with(|map, selection| {
7072 if !selection.is_empty() && !line_mode {
7073 selection.goal = SelectionGoal::None;
7074 }
7075 let (cursor, goal) = movement::up_by_rows(
7076 map,
7077 selection.end,
7078 row_count,
7079 selection.goal,
7080 false,
7081 text_layout_details,
7082 );
7083 selection.collapse_to(cursor, goal);
7084 });
7085 });
7086 }
7087
7088 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7089 let text_layout_details = &self.text_layout_details(cx);
7090 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7091 s.move_heads_with(|map, head, goal| {
7092 movement::up(map, head, goal, false, text_layout_details)
7093 })
7094 })
7095 }
7096
7097 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7098 self.take_rename(true, cx);
7099
7100 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7101 cx.propagate();
7102 return;
7103 }
7104
7105 let text_layout_details = &self.text_layout_details(cx);
7106 let selection_count = self.selections.count();
7107 let first_selection = self.selections.first_anchor();
7108
7109 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7110 let line_mode = s.line_mode;
7111 s.move_with(|map, selection| {
7112 if !selection.is_empty() && !line_mode {
7113 selection.goal = SelectionGoal::None;
7114 }
7115 let (cursor, goal) = movement::down(
7116 map,
7117 selection.end,
7118 selection.goal,
7119 false,
7120 text_layout_details,
7121 );
7122 selection.collapse_to(cursor, goal);
7123 });
7124 });
7125
7126 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7127 {
7128 cx.propagate();
7129 }
7130 }
7131
7132 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7133 let Some(row_count) = self.visible_row_count() else {
7134 return;
7135 };
7136
7137 let text_layout_details = &self.text_layout_details(cx);
7138
7139 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7140 s.move_heads_with(|map, head, goal| {
7141 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7142 })
7143 })
7144 }
7145
7146 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7147 if self.take_rename(true, cx).is_some() {
7148 return;
7149 }
7150
7151 if self
7152 .context_menu
7153 .write()
7154 .as_mut()
7155 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7156 .unwrap_or(false)
7157 {
7158 return;
7159 }
7160
7161 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7162 cx.propagate();
7163 return;
7164 }
7165
7166 let Some(row_count) = self.visible_row_count() else {
7167 return;
7168 };
7169
7170 let autoscroll = if action.center_cursor {
7171 Autoscroll::center()
7172 } else {
7173 Autoscroll::fit()
7174 };
7175
7176 let text_layout_details = &self.text_layout_details(cx);
7177 self.change_selections(Some(autoscroll), cx, |s| {
7178 let line_mode = s.line_mode;
7179 s.move_with(|map, selection| {
7180 if !selection.is_empty() && !line_mode {
7181 selection.goal = SelectionGoal::None;
7182 }
7183 let (cursor, goal) = movement::down_by_rows(
7184 map,
7185 selection.end,
7186 row_count,
7187 selection.goal,
7188 false,
7189 text_layout_details,
7190 );
7191 selection.collapse_to(cursor, goal);
7192 });
7193 });
7194 }
7195
7196 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7197 let text_layout_details = &self.text_layout_details(cx);
7198 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7199 s.move_heads_with(|map, head, goal| {
7200 movement::down(map, head, goal, false, text_layout_details)
7201 })
7202 });
7203 }
7204
7205 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7206 if let Some(context_menu) = self.context_menu.write().as_mut() {
7207 context_menu.select_first(self.completion_provider.as_deref(), cx);
7208 }
7209 }
7210
7211 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7212 if let Some(context_menu) = self.context_menu.write().as_mut() {
7213 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7214 }
7215 }
7216
7217 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7218 if let Some(context_menu) = self.context_menu.write().as_mut() {
7219 context_menu.select_next(self.completion_provider.as_deref(), cx);
7220 }
7221 }
7222
7223 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7224 if let Some(context_menu) = self.context_menu.write().as_mut() {
7225 context_menu.select_last(self.completion_provider.as_deref(), cx);
7226 }
7227 }
7228
7229 pub fn move_to_previous_word_start(
7230 &mut self,
7231 _: &MoveToPreviousWordStart,
7232 cx: &mut ViewContext<Self>,
7233 ) {
7234 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7235 s.move_cursors_with(|map, head, _| {
7236 (
7237 movement::previous_word_start(map, head),
7238 SelectionGoal::None,
7239 )
7240 });
7241 })
7242 }
7243
7244 pub fn move_to_previous_subword_start(
7245 &mut self,
7246 _: &MoveToPreviousSubwordStart,
7247 cx: &mut ViewContext<Self>,
7248 ) {
7249 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7250 s.move_cursors_with(|map, head, _| {
7251 (
7252 movement::previous_subword_start(map, head),
7253 SelectionGoal::None,
7254 )
7255 });
7256 })
7257 }
7258
7259 pub fn select_to_previous_word_start(
7260 &mut self,
7261 _: &SelectToPreviousWordStart,
7262 cx: &mut ViewContext<Self>,
7263 ) {
7264 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7265 s.move_heads_with(|map, head, _| {
7266 (
7267 movement::previous_word_start(map, head),
7268 SelectionGoal::None,
7269 )
7270 });
7271 })
7272 }
7273
7274 pub fn select_to_previous_subword_start(
7275 &mut self,
7276 _: &SelectToPreviousSubwordStart,
7277 cx: &mut ViewContext<Self>,
7278 ) {
7279 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7280 s.move_heads_with(|map, head, _| {
7281 (
7282 movement::previous_subword_start(map, head),
7283 SelectionGoal::None,
7284 )
7285 });
7286 })
7287 }
7288
7289 pub fn delete_to_previous_word_start(
7290 &mut self,
7291 action: &DeleteToPreviousWordStart,
7292 cx: &mut ViewContext<Self>,
7293 ) {
7294 self.transact(cx, |this, cx| {
7295 this.select_autoclose_pair(cx);
7296 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7297 let line_mode = s.line_mode;
7298 s.move_with(|map, selection| {
7299 if selection.is_empty() && !line_mode {
7300 let cursor = if action.ignore_newlines {
7301 movement::previous_word_start(map, selection.head())
7302 } else {
7303 movement::previous_word_start_or_newline(map, selection.head())
7304 };
7305 selection.set_head(cursor, SelectionGoal::None);
7306 }
7307 });
7308 });
7309 this.insert("", cx);
7310 });
7311 }
7312
7313 pub fn delete_to_previous_subword_start(
7314 &mut self,
7315 _: &DeleteToPreviousSubwordStart,
7316 cx: &mut ViewContext<Self>,
7317 ) {
7318 self.transact(cx, |this, cx| {
7319 this.select_autoclose_pair(cx);
7320 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7321 let line_mode = s.line_mode;
7322 s.move_with(|map, selection| {
7323 if selection.is_empty() && !line_mode {
7324 let cursor = movement::previous_subword_start(map, selection.head());
7325 selection.set_head(cursor, SelectionGoal::None);
7326 }
7327 });
7328 });
7329 this.insert("", cx);
7330 });
7331 }
7332
7333 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7334 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7335 s.move_cursors_with(|map, head, _| {
7336 (movement::next_word_end(map, head), SelectionGoal::None)
7337 });
7338 })
7339 }
7340
7341 pub fn move_to_next_subword_end(
7342 &mut self,
7343 _: &MoveToNextSubwordEnd,
7344 cx: &mut ViewContext<Self>,
7345 ) {
7346 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7347 s.move_cursors_with(|map, head, _| {
7348 (movement::next_subword_end(map, head), SelectionGoal::None)
7349 });
7350 })
7351 }
7352
7353 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7354 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7355 s.move_heads_with(|map, head, _| {
7356 (movement::next_word_end(map, head), SelectionGoal::None)
7357 });
7358 })
7359 }
7360
7361 pub fn select_to_next_subword_end(
7362 &mut self,
7363 _: &SelectToNextSubwordEnd,
7364 cx: &mut ViewContext<Self>,
7365 ) {
7366 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7367 s.move_heads_with(|map, head, _| {
7368 (movement::next_subword_end(map, head), SelectionGoal::None)
7369 });
7370 })
7371 }
7372
7373 pub fn delete_to_next_word_end(
7374 &mut self,
7375 action: &DeleteToNextWordEnd,
7376 cx: &mut ViewContext<Self>,
7377 ) {
7378 self.transact(cx, |this, cx| {
7379 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7380 let line_mode = s.line_mode;
7381 s.move_with(|map, selection| {
7382 if selection.is_empty() && !line_mode {
7383 let cursor = if action.ignore_newlines {
7384 movement::next_word_end(map, selection.head())
7385 } else {
7386 movement::next_word_end_or_newline(map, selection.head())
7387 };
7388 selection.set_head(cursor, SelectionGoal::None);
7389 }
7390 });
7391 });
7392 this.insert("", cx);
7393 });
7394 }
7395
7396 pub fn delete_to_next_subword_end(
7397 &mut self,
7398 _: &DeleteToNextSubwordEnd,
7399 cx: &mut ViewContext<Self>,
7400 ) {
7401 self.transact(cx, |this, cx| {
7402 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7403 s.move_with(|map, selection| {
7404 if selection.is_empty() {
7405 let cursor = movement::next_subword_end(map, selection.head());
7406 selection.set_head(cursor, SelectionGoal::None);
7407 }
7408 });
7409 });
7410 this.insert("", cx);
7411 });
7412 }
7413
7414 pub fn move_to_beginning_of_line(
7415 &mut self,
7416 action: &MoveToBeginningOfLine,
7417 cx: &mut ViewContext<Self>,
7418 ) {
7419 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7420 s.move_cursors_with(|map, head, _| {
7421 (
7422 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7423 SelectionGoal::None,
7424 )
7425 });
7426 })
7427 }
7428
7429 pub fn select_to_beginning_of_line(
7430 &mut self,
7431 action: &SelectToBeginningOfLine,
7432 cx: &mut ViewContext<Self>,
7433 ) {
7434 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7435 s.move_heads_with(|map, head, _| {
7436 (
7437 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7438 SelectionGoal::None,
7439 )
7440 });
7441 });
7442 }
7443
7444 pub fn delete_to_beginning_of_line(
7445 &mut self,
7446 _: &DeleteToBeginningOfLine,
7447 cx: &mut ViewContext<Self>,
7448 ) {
7449 self.transact(cx, |this, cx| {
7450 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7451 s.move_with(|_, selection| {
7452 selection.reversed = true;
7453 });
7454 });
7455
7456 this.select_to_beginning_of_line(
7457 &SelectToBeginningOfLine {
7458 stop_at_soft_wraps: false,
7459 },
7460 cx,
7461 );
7462 this.backspace(&Backspace, cx);
7463 });
7464 }
7465
7466 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7467 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7468 s.move_cursors_with(|map, head, _| {
7469 (
7470 movement::line_end(map, head, action.stop_at_soft_wraps),
7471 SelectionGoal::None,
7472 )
7473 });
7474 })
7475 }
7476
7477 pub fn select_to_end_of_line(
7478 &mut self,
7479 action: &SelectToEndOfLine,
7480 cx: &mut ViewContext<Self>,
7481 ) {
7482 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7483 s.move_heads_with(|map, head, _| {
7484 (
7485 movement::line_end(map, head, action.stop_at_soft_wraps),
7486 SelectionGoal::None,
7487 )
7488 });
7489 })
7490 }
7491
7492 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7493 self.transact(cx, |this, cx| {
7494 this.select_to_end_of_line(
7495 &SelectToEndOfLine {
7496 stop_at_soft_wraps: false,
7497 },
7498 cx,
7499 );
7500 this.delete(&Delete, cx);
7501 });
7502 }
7503
7504 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7505 self.transact(cx, |this, cx| {
7506 this.select_to_end_of_line(
7507 &SelectToEndOfLine {
7508 stop_at_soft_wraps: false,
7509 },
7510 cx,
7511 );
7512 this.cut(&Cut, cx);
7513 });
7514 }
7515
7516 pub fn move_to_start_of_paragraph(
7517 &mut self,
7518 _: &MoveToStartOfParagraph,
7519 cx: &mut ViewContext<Self>,
7520 ) {
7521 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7522 cx.propagate();
7523 return;
7524 }
7525
7526 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7527 s.move_with(|map, selection| {
7528 selection.collapse_to(
7529 movement::start_of_paragraph(map, selection.head(), 1),
7530 SelectionGoal::None,
7531 )
7532 });
7533 })
7534 }
7535
7536 pub fn move_to_end_of_paragraph(
7537 &mut self,
7538 _: &MoveToEndOfParagraph,
7539 cx: &mut ViewContext<Self>,
7540 ) {
7541 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7542 cx.propagate();
7543 return;
7544 }
7545
7546 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7547 s.move_with(|map, selection| {
7548 selection.collapse_to(
7549 movement::end_of_paragraph(map, selection.head(), 1),
7550 SelectionGoal::None,
7551 )
7552 });
7553 })
7554 }
7555
7556 pub fn select_to_start_of_paragraph(
7557 &mut self,
7558 _: &SelectToStartOfParagraph,
7559 cx: &mut ViewContext<Self>,
7560 ) {
7561 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7562 cx.propagate();
7563 return;
7564 }
7565
7566 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7567 s.move_heads_with(|map, head, _| {
7568 (
7569 movement::start_of_paragraph(map, head, 1),
7570 SelectionGoal::None,
7571 )
7572 });
7573 })
7574 }
7575
7576 pub fn select_to_end_of_paragraph(
7577 &mut self,
7578 _: &SelectToEndOfParagraph,
7579 cx: &mut ViewContext<Self>,
7580 ) {
7581 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7582 cx.propagate();
7583 return;
7584 }
7585
7586 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7587 s.move_heads_with(|map, head, _| {
7588 (
7589 movement::end_of_paragraph(map, head, 1),
7590 SelectionGoal::None,
7591 )
7592 });
7593 })
7594 }
7595
7596 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7597 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7598 cx.propagate();
7599 return;
7600 }
7601
7602 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7603 s.select_ranges(vec![0..0]);
7604 });
7605 }
7606
7607 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7608 let mut selection = self.selections.last::<Point>(cx);
7609 selection.set_head(Point::zero(), SelectionGoal::None);
7610
7611 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7612 s.select(vec![selection]);
7613 });
7614 }
7615
7616 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7617 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7618 cx.propagate();
7619 return;
7620 }
7621
7622 let cursor = self.buffer.read(cx).read(cx).len();
7623 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7624 s.select_ranges(vec![cursor..cursor])
7625 });
7626 }
7627
7628 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7629 self.nav_history = nav_history;
7630 }
7631
7632 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7633 self.nav_history.as_ref()
7634 }
7635
7636 fn push_to_nav_history(
7637 &mut self,
7638 cursor_anchor: Anchor,
7639 new_position: Option<Point>,
7640 cx: &mut ViewContext<Self>,
7641 ) {
7642 if let Some(nav_history) = self.nav_history.as_mut() {
7643 let buffer = self.buffer.read(cx).read(cx);
7644 let cursor_position = cursor_anchor.to_point(&buffer);
7645 let scroll_state = self.scroll_manager.anchor();
7646 let scroll_top_row = scroll_state.top_row(&buffer);
7647 drop(buffer);
7648
7649 if let Some(new_position) = new_position {
7650 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7651 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7652 return;
7653 }
7654 }
7655
7656 nav_history.push(
7657 Some(NavigationData {
7658 cursor_anchor,
7659 cursor_position,
7660 scroll_anchor: scroll_state,
7661 scroll_top_row,
7662 }),
7663 cx,
7664 );
7665 }
7666 }
7667
7668 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7669 let buffer = self.buffer.read(cx).snapshot(cx);
7670 let mut selection = self.selections.first::<usize>(cx);
7671 selection.set_head(buffer.len(), SelectionGoal::None);
7672 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7673 s.select(vec![selection]);
7674 });
7675 }
7676
7677 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7678 let end = self.buffer.read(cx).read(cx).len();
7679 self.change_selections(None, cx, |s| {
7680 s.select_ranges(vec![0..end]);
7681 });
7682 }
7683
7684 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7685 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7686 let mut selections = self.selections.all::<Point>(cx);
7687 let max_point = display_map.buffer_snapshot.max_point();
7688 for selection in &mut selections {
7689 let rows = selection.spanned_rows(true, &display_map);
7690 selection.start = Point::new(rows.start.0, 0);
7691 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7692 selection.reversed = false;
7693 }
7694 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7695 s.select(selections);
7696 });
7697 }
7698
7699 pub fn split_selection_into_lines(
7700 &mut self,
7701 _: &SplitSelectionIntoLines,
7702 cx: &mut ViewContext<Self>,
7703 ) {
7704 let mut to_unfold = Vec::new();
7705 let mut new_selection_ranges = Vec::new();
7706 {
7707 let selections = self.selections.all::<Point>(cx);
7708 let buffer = self.buffer.read(cx).read(cx);
7709 for selection in selections {
7710 for row in selection.start.row..selection.end.row {
7711 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7712 new_selection_ranges.push(cursor..cursor);
7713 }
7714 new_selection_ranges.push(selection.end..selection.end);
7715 to_unfold.push(selection.start..selection.end);
7716 }
7717 }
7718 self.unfold_ranges(&to_unfold, true, true, cx);
7719 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7720 s.select_ranges(new_selection_ranges);
7721 });
7722 }
7723
7724 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7725 self.add_selection(true, cx);
7726 }
7727
7728 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7729 self.add_selection(false, cx);
7730 }
7731
7732 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7733 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7734 let mut selections = self.selections.all::<Point>(cx);
7735 let text_layout_details = self.text_layout_details(cx);
7736 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7737 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7738 let range = oldest_selection.display_range(&display_map).sorted();
7739
7740 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7741 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7742 let positions = start_x.min(end_x)..start_x.max(end_x);
7743
7744 selections.clear();
7745 let mut stack = Vec::new();
7746 for row in range.start.row().0..=range.end.row().0 {
7747 if let Some(selection) = self.selections.build_columnar_selection(
7748 &display_map,
7749 DisplayRow(row),
7750 &positions,
7751 oldest_selection.reversed,
7752 &text_layout_details,
7753 ) {
7754 stack.push(selection.id);
7755 selections.push(selection);
7756 }
7757 }
7758
7759 if above {
7760 stack.reverse();
7761 }
7762
7763 AddSelectionsState { above, stack }
7764 });
7765
7766 let last_added_selection = *state.stack.last().unwrap();
7767 let mut new_selections = Vec::new();
7768 if above == state.above {
7769 let end_row = if above {
7770 DisplayRow(0)
7771 } else {
7772 display_map.max_point().row()
7773 };
7774
7775 'outer: for selection in selections {
7776 if selection.id == last_added_selection {
7777 let range = selection.display_range(&display_map).sorted();
7778 debug_assert_eq!(range.start.row(), range.end.row());
7779 let mut row = range.start.row();
7780 let positions =
7781 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7782 px(start)..px(end)
7783 } else {
7784 let start_x =
7785 display_map.x_for_display_point(range.start, &text_layout_details);
7786 let end_x =
7787 display_map.x_for_display_point(range.end, &text_layout_details);
7788 start_x.min(end_x)..start_x.max(end_x)
7789 };
7790
7791 while row != end_row {
7792 if above {
7793 row.0 -= 1;
7794 } else {
7795 row.0 += 1;
7796 }
7797
7798 if let Some(new_selection) = self.selections.build_columnar_selection(
7799 &display_map,
7800 row,
7801 &positions,
7802 selection.reversed,
7803 &text_layout_details,
7804 ) {
7805 state.stack.push(new_selection.id);
7806 if above {
7807 new_selections.push(new_selection);
7808 new_selections.push(selection);
7809 } else {
7810 new_selections.push(selection);
7811 new_selections.push(new_selection);
7812 }
7813
7814 continue 'outer;
7815 }
7816 }
7817 }
7818
7819 new_selections.push(selection);
7820 }
7821 } else {
7822 new_selections = selections;
7823 new_selections.retain(|s| s.id != last_added_selection);
7824 state.stack.pop();
7825 }
7826
7827 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7828 s.select(new_selections);
7829 });
7830 if state.stack.len() > 1 {
7831 self.add_selections_state = Some(state);
7832 }
7833 }
7834
7835 pub fn select_next_match_internal(
7836 &mut self,
7837 display_map: &DisplaySnapshot,
7838 replace_newest: bool,
7839 autoscroll: Option<Autoscroll>,
7840 cx: &mut ViewContext<Self>,
7841 ) -> Result<()> {
7842 fn select_next_match_ranges(
7843 this: &mut Editor,
7844 range: Range<usize>,
7845 replace_newest: bool,
7846 auto_scroll: Option<Autoscroll>,
7847 cx: &mut ViewContext<Editor>,
7848 ) {
7849 this.unfold_ranges(&[range.clone()], false, true, cx);
7850 this.change_selections(auto_scroll, cx, |s| {
7851 if replace_newest {
7852 s.delete(s.newest_anchor().id);
7853 }
7854 s.insert_range(range.clone());
7855 });
7856 }
7857
7858 let buffer = &display_map.buffer_snapshot;
7859 let mut selections = self.selections.all::<usize>(cx);
7860 if let Some(mut select_next_state) = self.select_next_state.take() {
7861 let query = &select_next_state.query;
7862 if !select_next_state.done {
7863 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7864 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7865 let mut next_selected_range = None;
7866
7867 let bytes_after_last_selection =
7868 buffer.bytes_in_range(last_selection.end..buffer.len());
7869 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7870 let query_matches = query
7871 .stream_find_iter(bytes_after_last_selection)
7872 .map(|result| (last_selection.end, result))
7873 .chain(
7874 query
7875 .stream_find_iter(bytes_before_first_selection)
7876 .map(|result| (0, result)),
7877 );
7878
7879 for (start_offset, query_match) in query_matches {
7880 let query_match = query_match.unwrap(); // can only fail due to I/O
7881 let offset_range =
7882 start_offset + query_match.start()..start_offset + query_match.end();
7883 let display_range = offset_range.start.to_display_point(display_map)
7884 ..offset_range.end.to_display_point(display_map);
7885
7886 if !select_next_state.wordwise
7887 || (!movement::is_inside_word(display_map, display_range.start)
7888 && !movement::is_inside_word(display_map, display_range.end))
7889 {
7890 // TODO: This is n^2, because we might check all the selections
7891 if !selections
7892 .iter()
7893 .any(|selection| selection.range().overlaps(&offset_range))
7894 {
7895 next_selected_range = Some(offset_range);
7896 break;
7897 }
7898 }
7899 }
7900
7901 if let Some(next_selected_range) = next_selected_range {
7902 select_next_match_ranges(
7903 self,
7904 next_selected_range,
7905 replace_newest,
7906 autoscroll,
7907 cx,
7908 );
7909 } else {
7910 select_next_state.done = true;
7911 }
7912 }
7913
7914 self.select_next_state = Some(select_next_state);
7915 } else {
7916 let mut only_carets = true;
7917 let mut same_text_selected = true;
7918 let mut selected_text = None;
7919
7920 let mut selections_iter = selections.iter().peekable();
7921 while let Some(selection) = selections_iter.next() {
7922 if selection.start != selection.end {
7923 only_carets = false;
7924 }
7925
7926 if same_text_selected {
7927 if selected_text.is_none() {
7928 selected_text =
7929 Some(buffer.text_for_range(selection.range()).collect::<String>());
7930 }
7931
7932 if let Some(next_selection) = selections_iter.peek() {
7933 if next_selection.range().len() == selection.range().len() {
7934 let next_selected_text = buffer
7935 .text_for_range(next_selection.range())
7936 .collect::<String>();
7937 if Some(next_selected_text) != selected_text {
7938 same_text_selected = false;
7939 selected_text = None;
7940 }
7941 } else {
7942 same_text_selected = false;
7943 selected_text = None;
7944 }
7945 }
7946 }
7947 }
7948
7949 if only_carets {
7950 for selection in &mut selections {
7951 let word_range = movement::surrounding_word(
7952 display_map,
7953 selection.start.to_display_point(display_map),
7954 );
7955 selection.start = word_range.start.to_offset(display_map, Bias::Left);
7956 selection.end = word_range.end.to_offset(display_map, Bias::Left);
7957 selection.goal = SelectionGoal::None;
7958 selection.reversed = false;
7959 select_next_match_ranges(
7960 self,
7961 selection.start..selection.end,
7962 replace_newest,
7963 autoscroll,
7964 cx,
7965 );
7966 }
7967
7968 if selections.len() == 1 {
7969 let selection = selections
7970 .last()
7971 .expect("ensured that there's only one selection");
7972 let query = buffer
7973 .text_for_range(selection.start..selection.end)
7974 .collect::<String>();
7975 let is_empty = query.is_empty();
7976 let select_state = SelectNextState {
7977 query: AhoCorasick::new(&[query])?,
7978 wordwise: true,
7979 done: is_empty,
7980 };
7981 self.select_next_state = Some(select_state);
7982 } else {
7983 self.select_next_state = None;
7984 }
7985 } else if let Some(selected_text) = selected_text {
7986 self.select_next_state = Some(SelectNextState {
7987 query: AhoCorasick::new(&[selected_text])?,
7988 wordwise: false,
7989 done: false,
7990 });
7991 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7992 }
7993 }
7994 Ok(())
7995 }
7996
7997 pub fn select_all_matches(
7998 &mut self,
7999 _action: &SelectAllMatches,
8000 cx: &mut ViewContext<Self>,
8001 ) -> Result<()> {
8002 self.push_to_selection_history();
8003 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8004
8005 self.select_next_match_internal(&display_map, false, None, cx)?;
8006 let Some(select_next_state) = self.select_next_state.as_mut() else {
8007 return Ok(());
8008 };
8009 if select_next_state.done {
8010 return Ok(());
8011 }
8012
8013 let mut new_selections = self.selections.all::<usize>(cx);
8014
8015 let buffer = &display_map.buffer_snapshot;
8016 let query_matches = select_next_state
8017 .query
8018 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8019
8020 for query_match in query_matches {
8021 let query_match = query_match.unwrap(); // can only fail due to I/O
8022 let offset_range = query_match.start()..query_match.end();
8023 let display_range = offset_range.start.to_display_point(&display_map)
8024 ..offset_range.end.to_display_point(&display_map);
8025
8026 if !select_next_state.wordwise
8027 || (!movement::is_inside_word(&display_map, display_range.start)
8028 && !movement::is_inside_word(&display_map, display_range.end))
8029 {
8030 self.selections.change_with(cx, |selections| {
8031 new_selections.push(Selection {
8032 id: selections.new_selection_id(),
8033 start: offset_range.start,
8034 end: offset_range.end,
8035 reversed: false,
8036 goal: SelectionGoal::None,
8037 });
8038 });
8039 }
8040 }
8041
8042 new_selections.sort_by_key(|selection| selection.start);
8043 let mut ix = 0;
8044 while ix + 1 < new_selections.len() {
8045 let current_selection = &new_selections[ix];
8046 let next_selection = &new_selections[ix + 1];
8047 if current_selection.range().overlaps(&next_selection.range()) {
8048 if current_selection.id < next_selection.id {
8049 new_selections.remove(ix + 1);
8050 } else {
8051 new_selections.remove(ix);
8052 }
8053 } else {
8054 ix += 1;
8055 }
8056 }
8057
8058 select_next_state.done = true;
8059 self.unfold_ranges(
8060 &new_selections
8061 .iter()
8062 .map(|selection| selection.range())
8063 .collect::<Vec<_>>(),
8064 false,
8065 false,
8066 cx,
8067 );
8068 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8069 selections.select(new_selections)
8070 });
8071
8072 Ok(())
8073 }
8074
8075 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8076 self.push_to_selection_history();
8077 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8078 self.select_next_match_internal(
8079 &display_map,
8080 action.replace_newest,
8081 Some(Autoscroll::newest()),
8082 cx,
8083 )?;
8084 Ok(())
8085 }
8086
8087 pub fn select_previous(
8088 &mut self,
8089 action: &SelectPrevious,
8090 cx: &mut ViewContext<Self>,
8091 ) -> Result<()> {
8092 self.push_to_selection_history();
8093 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8094 let buffer = &display_map.buffer_snapshot;
8095 let mut selections = self.selections.all::<usize>(cx);
8096 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8097 let query = &select_prev_state.query;
8098 if !select_prev_state.done {
8099 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8100 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8101 let mut next_selected_range = None;
8102 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8103 let bytes_before_last_selection =
8104 buffer.reversed_bytes_in_range(0..last_selection.start);
8105 let bytes_after_first_selection =
8106 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8107 let query_matches = query
8108 .stream_find_iter(bytes_before_last_selection)
8109 .map(|result| (last_selection.start, result))
8110 .chain(
8111 query
8112 .stream_find_iter(bytes_after_first_selection)
8113 .map(|result| (buffer.len(), result)),
8114 );
8115 for (end_offset, query_match) in query_matches {
8116 let query_match = query_match.unwrap(); // can only fail due to I/O
8117 let offset_range =
8118 end_offset - query_match.end()..end_offset - query_match.start();
8119 let display_range = offset_range.start.to_display_point(&display_map)
8120 ..offset_range.end.to_display_point(&display_map);
8121
8122 if !select_prev_state.wordwise
8123 || (!movement::is_inside_word(&display_map, display_range.start)
8124 && !movement::is_inside_word(&display_map, display_range.end))
8125 {
8126 next_selected_range = Some(offset_range);
8127 break;
8128 }
8129 }
8130
8131 if let Some(next_selected_range) = next_selected_range {
8132 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8133 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8134 if action.replace_newest {
8135 s.delete(s.newest_anchor().id);
8136 }
8137 s.insert_range(next_selected_range);
8138 });
8139 } else {
8140 select_prev_state.done = true;
8141 }
8142 }
8143
8144 self.select_prev_state = Some(select_prev_state);
8145 } else {
8146 let mut only_carets = true;
8147 let mut same_text_selected = true;
8148 let mut selected_text = None;
8149
8150 let mut selections_iter = selections.iter().peekable();
8151 while let Some(selection) = selections_iter.next() {
8152 if selection.start != selection.end {
8153 only_carets = false;
8154 }
8155
8156 if same_text_selected {
8157 if selected_text.is_none() {
8158 selected_text =
8159 Some(buffer.text_for_range(selection.range()).collect::<String>());
8160 }
8161
8162 if let Some(next_selection) = selections_iter.peek() {
8163 if next_selection.range().len() == selection.range().len() {
8164 let next_selected_text = buffer
8165 .text_for_range(next_selection.range())
8166 .collect::<String>();
8167 if Some(next_selected_text) != selected_text {
8168 same_text_selected = false;
8169 selected_text = None;
8170 }
8171 } else {
8172 same_text_selected = false;
8173 selected_text = None;
8174 }
8175 }
8176 }
8177 }
8178
8179 if only_carets {
8180 for selection in &mut selections {
8181 let word_range = movement::surrounding_word(
8182 &display_map,
8183 selection.start.to_display_point(&display_map),
8184 );
8185 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8186 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8187 selection.goal = SelectionGoal::None;
8188 selection.reversed = false;
8189 }
8190 if selections.len() == 1 {
8191 let selection = selections
8192 .last()
8193 .expect("ensured that there's only one selection");
8194 let query = buffer
8195 .text_for_range(selection.start..selection.end)
8196 .collect::<String>();
8197 let is_empty = query.is_empty();
8198 let select_state = SelectNextState {
8199 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8200 wordwise: true,
8201 done: is_empty,
8202 };
8203 self.select_prev_state = Some(select_state);
8204 } else {
8205 self.select_prev_state = None;
8206 }
8207
8208 self.unfold_ranges(
8209 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8210 false,
8211 true,
8212 cx,
8213 );
8214 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8215 s.select(selections);
8216 });
8217 } else if let Some(selected_text) = selected_text {
8218 self.select_prev_state = Some(SelectNextState {
8219 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8220 wordwise: false,
8221 done: false,
8222 });
8223 self.select_previous(action, cx)?;
8224 }
8225 }
8226 Ok(())
8227 }
8228
8229 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8230 if self.read_only(cx) {
8231 return;
8232 }
8233 let text_layout_details = &self.text_layout_details(cx);
8234 self.transact(cx, |this, cx| {
8235 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8236 let mut edits = Vec::new();
8237 let mut selection_edit_ranges = Vec::new();
8238 let mut last_toggled_row = None;
8239 let snapshot = this.buffer.read(cx).read(cx);
8240 let empty_str: Arc<str> = Arc::default();
8241 let mut suffixes_inserted = Vec::new();
8242 let ignore_indent = action.ignore_indent;
8243
8244 fn comment_prefix_range(
8245 snapshot: &MultiBufferSnapshot,
8246 row: MultiBufferRow,
8247 comment_prefix: &str,
8248 comment_prefix_whitespace: &str,
8249 ignore_indent: bool,
8250 ) -> Range<Point> {
8251 let indent_size = if ignore_indent {
8252 0
8253 } else {
8254 snapshot.indent_size_for_line(row).len
8255 };
8256
8257 let start = Point::new(row.0, indent_size);
8258
8259 let mut line_bytes = snapshot
8260 .bytes_in_range(start..snapshot.max_point())
8261 .flatten()
8262 .copied();
8263
8264 // If this line currently begins with the line comment prefix, then record
8265 // the range containing the prefix.
8266 if line_bytes
8267 .by_ref()
8268 .take(comment_prefix.len())
8269 .eq(comment_prefix.bytes())
8270 {
8271 // Include any whitespace that matches the comment prefix.
8272 let matching_whitespace_len = line_bytes
8273 .zip(comment_prefix_whitespace.bytes())
8274 .take_while(|(a, b)| a == b)
8275 .count() as u32;
8276 let end = Point::new(
8277 start.row,
8278 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8279 );
8280 start..end
8281 } else {
8282 start..start
8283 }
8284 }
8285
8286 fn comment_suffix_range(
8287 snapshot: &MultiBufferSnapshot,
8288 row: MultiBufferRow,
8289 comment_suffix: &str,
8290 comment_suffix_has_leading_space: bool,
8291 ) -> Range<Point> {
8292 let end = Point::new(row.0, snapshot.line_len(row));
8293 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8294
8295 let mut line_end_bytes = snapshot
8296 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8297 .flatten()
8298 .copied();
8299
8300 let leading_space_len = if suffix_start_column > 0
8301 && line_end_bytes.next() == Some(b' ')
8302 && comment_suffix_has_leading_space
8303 {
8304 1
8305 } else {
8306 0
8307 };
8308
8309 // If this line currently begins with the line comment prefix, then record
8310 // the range containing the prefix.
8311 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8312 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8313 start..end
8314 } else {
8315 end..end
8316 }
8317 }
8318
8319 // TODO: Handle selections that cross excerpts
8320 for selection in &mut selections {
8321 let start_column = snapshot
8322 .indent_size_for_line(MultiBufferRow(selection.start.row))
8323 .len;
8324 let language = if let Some(language) =
8325 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8326 {
8327 language
8328 } else {
8329 continue;
8330 };
8331
8332 selection_edit_ranges.clear();
8333
8334 // If multiple selections contain a given row, avoid processing that
8335 // row more than once.
8336 let mut start_row = MultiBufferRow(selection.start.row);
8337 if last_toggled_row == Some(start_row) {
8338 start_row = start_row.next_row();
8339 }
8340 let end_row =
8341 if selection.end.row > selection.start.row && selection.end.column == 0 {
8342 MultiBufferRow(selection.end.row - 1)
8343 } else {
8344 MultiBufferRow(selection.end.row)
8345 };
8346 last_toggled_row = Some(end_row);
8347
8348 if start_row > end_row {
8349 continue;
8350 }
8351
8352 // If the language has line comments, toggle those.
8353 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8354
8355 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8356 if ignore_indent {
8357 full_comment_prefixes = full_comment_prefixes
8358 .into_iter()
8359 .map(|s| Arc::from(s.trim_end()))
8360 .collect();
8361 }
8362
8363 if !full_comment_prefixes.is_empty() {
8364 let first_prefix = full_comment_prefixes
8365 .first()
8366 .expect("prefixes is non-empty");
8367 let prefix_trimmed_lengths = full_comment_prefixes
8368 .iter()
8369 .map(|p| p.trim_end_matches(' ').len())
8370 .collect::<SmallVec<[usize; 4]>>();
8371
8372 let mut all_selection_lines_are_comments = true;
8373
8374 for row in start_row.0..=end_row.0 {
8375 let row = MultiBufferRow(row);
8376 if start_row < end_row && snapshot.is_line_blank(row) {
8377 continue;
8378 }
8379
8380 let prefix_range = full_comment_prefixes
8381 .iter()
8382 .zip(prefix_trimmed_lengths.iter().copied())
8383 .map(|(prefix, trimmed_prefix_len)| {
8384 comment_prefix_range(
8385 snapshot.deref(),
8386 row,
8387 &prefix[..trimmed_prefix_len],
8388 &prefix[trimmed_prefix_len..],
8389 ignore_indent,
8390 )
8391 })
8392 .max_by_key(|range| range.end.column - range.start.column)
8393 .expect("prefixes is non-empty");
8394
8395 if prefix_range.is_empty() {
8396 all_selection_lines_are_comments = false;
8397 }
8398
8399 selection_edit_ranges.push(prefix_range);
8400 }
8401
8402 if all_selection_lines_are_comments {
8403 edits.extend(
8404 selection_edit_ranges
8405 .iter()
8406 .cloned()
8407 .map(|range| (range, empty_str.clone())),
8408 );
8409 } else {
8410 let min_column = selection_edit_ranges
8411 .iter()
8412 .map(|range| range.start.column)
8413 .min()
8414 .unwrap_or(0);
8415 edits.extend(selection_edit_ranges.iter().map(|range| {
8416 let position = Point::new(range.start.row, min_column);
8417 (position..position, first_prefix.clone())
8418 }));
8419 }
8420 } else if let Some((full_comment_prefix, comment_suffix)) =
8421 language.block_comment_delimiters()
8422 {
8423 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8424 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8425 let prefix_range = comment_prefix_range(
8426 snapshot.deref(),
8427 start_row,
8428 comment_prefix,
8429 comment_prefix_whitespace,
8430 ignore_indent,
8431 );
8432 let suffix_range = comment_suffix_range(
8433 snapshot.deref(),
8434 end_row,
8435 comment_suffix.trim_start_matches(' '),
8436 comment_suffix.starts_with(' '),
8437 );
8438
8439 if prefix_range.is_empty() || suffix_range.is_empty() {
8440 edits.push((
8441 prefix_range.start..prefix_range.start,
8442 full_comment_prefix.clone(),
8443 ));
8444 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8445 suffixes_inserted.push((end_row, comment_suffix.len()));
8446 } else {
8447 edits.push((prefix_range, empty_str.clone()));
8448 edits.push((suffix_range, empty_str.clone()));
8449 }
8450 } else {
8451 continue;
8452 }
8453 }
8454
8455 drop(snapshot);
8456 this.buffer.update(cx, |buffer, cx| {
8457 buffer.edit(edits, None, cx);
8458 });
8459
8460 // Adjust selections so that they end before any comment suffixes that
8461 // were inserted.
8462 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8463 let mut selections = this.selections.all::<Point>(cx);
8464 let snapshot = this.buffer.read(cx).read(cx);
8465 for selection in &mut selections {
8466 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8467 match row.cmp(&MultiBufferRow(selection.end.row)) {
8468 Ordering::Less => {
8469 suffixes_inserted.next();
8470 continue;
8471 }
8472 Ordering::Greater => break,
8473 Ordering::Equal => {
8474 if selection.end.column == snapshot.line_len(row) {
8475 if selection.is_empty() {
8476 selection.start.column -= suffix_len as u32;
8477 }
8478 selection.end.column -= suffix_len as u32;
8479 }
8480 break;
8481 }
8482 }
8483 }
8484 }
8485
8486 drop(snapshot);
8487 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8488
8489 let selections = this.selections.all::<Point>(cx);
8490 let selections_on_single_row = selections.windows(2).all(|selections| {
8491 selections[0].start.row == selections[1].start.row
8492 && selections[0].end.row == selections[1].end.row
8493 && selections[0].start.row == selections[0].end.row
8494 });
8495 let selections_selecting = selections
8496 .iter()
8497 .any(|selection| selection.start != selection.end);
8498 let advance_downwards = action.advance_downwards
8499 && selections_on_single_row
8500 && !selections_selecting
8501 && !matches!(this.mode, EditorMode::SingleLine { .. });
8502
8503 if advance_downwards {
8504 let snapshot = this.buffer.read(cx).snapshot(cx);
8505
8506 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8507 s.move_cursors_with(|display_snapshot, display_point, _| {
8508 let mut point = display_point.to_point(display_snapshot);
8509 point.row += 1;
8510 point = snapshot.clip_point(point, Bias::Left);
8511 let display_point = point.to_display_point(display_snapshot);
8512 let goal = SelectionGoal::HorizontalPosition(
8513 display_snapshot
8514 .x_for_display_point(display_point, text_layout_details)
8515 .into(),
8516 );
8517 (display_point, goal)
8518 })
8519 });
8520 }
8521 });
8522 }
8523
8524 pub fn select_enclosing_symbol(
8525 &mut self,
8526 _: &SelectEnclosingSymbol,
8527 cx: &mut ViewContext<Self>,
8528 ) {
8529 let buffer = self.buffer.read(cx).snapshot(cx);
8530 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8531
8532 fn update_selection(
8533 selection: &Selection<usize>,
8534 buffer_snap: &MultiBufferSnapshot,
8535 ) -> Option<Selection<usize>> {
8536 let cursor = selection.head();
8537 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8538 for symbol in symbols.iter().rev() {
8539 let start = symbol.range.start.to_offset(buffer_snap);
8540 let end = symbol.range.end.to_offset(buffer_snap);
8541 let new_range = start..end;
8542 if start < selection.start || end > selection.end {
8543 return Some(Selection {
8544 id: selection.id,
8545 start: new_range.start,
8546 end: new_range.end,
8547 goal: SelectionGoal::None,
8548 reversed: selection.reversed,
8549 });
8550 }
8551 }
8552 None
8553 }
8554
8555 let mut selected_larger_symbol = false;
8556 let new_selections = old_selections
8557 .iter()
8558 .map(|selection| match update_selection(selection, &buffer) {
8559 Some(new_selection) => {
8560 if new_selection.range() != selection.range() {
8561 selected_larger_symbol = true;
8562 }
8563 new_selection
8564 }
8565 None => selection.clone(),
8566 })
8567 .collect::<Vec<_>>();
8568
8569 if selected_larger_symbol {
8570 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8571 s.select(new_selections);
8572 });
8573 }
8574 }
8575
8576 pub fn select_larger_syntax_node(
8577 &mut self,
8578 _: &SelectLargerSyntaxNode,
8579 cx: &mut ViewContext<Self>,
8580 ) {
8581 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8582 let buffer = self.buffer.read(cx).snapshot(cx);
8583 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8584
8585 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8586 let mut selected_larger_node = false;
8587 let new_selections = old_selections
8588 .iter()
8589 .map(|selection| {
8590 let old_range = selection.start..selection.end;
8591 let mut new_range = old_range.clone();
8592 while let Some(containing_range) =
8593 buffer.range_for_syntax_ancestor(new_range.clone())
8594 {
8595 new_range = containing_range;
8596 if !display_map.intersects_fold(new_range.start)
8597 && !display_map.intersects_fold(new_range.end)
8598 {
8599 break;
8600 }
8601 }
8602
8603 selected_larger_node |= new_range != old_range;
8604 Selection {
8605 id: selection.id,
8606 start: new_range.start,
8607 end: new_range.end,
8608 goal: SelectionGoal::None,
8609 reversed: selection.reversed,
8610 }
8611 })
8612 .collect::<Vec<_>>();
8613
8614 if selected_larger_node {
8615 stack.push(old_selections);
8616 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8617 s.select(new_selections);
8618 });
8619 }
8620 self.select_larger_syntax_node_stack = stack;
8621 }
8622
8623 pub fn select_smaller_syntax_node(
8624 &mut self,
8625 _: &SelectSmallerSyntaxNode,
8626 cx: &mut ViewContext<Self>,
8627 ) {
8628 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8629 if let Some(selections) = stack.pop() {
8630 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8631 s.select(selections.to_vec());
8632 });
8633 }
8634 self.select_larger_syntax_node_stack = stack;
8635 }
8636
8637 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8638 if !EditorSettings::get_global(cx).gutter.runnables {
8639 self.clear_tasks();
8640 return Task::ready(());
8641 }
8642 let project = self.project.as_ref().map(Model::downgrade);
8643 cx.spawn(|this, mut cx| async move {
8644 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8645 let Some(project) = project.and_then(|p| p.upgrade()) else {
8646 return;
8647 };
8648 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8649 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8650 }) else {
8651 return;
8652 };
8653
8654 let hide_runnables = project
8655 .update(&mut cx, |project, cx| {
8656 // Do not display any test indicators in non-dev server remote projects.
8657 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8658 })
8659 .unwrap_or(true);
8660 if hide_runnables {
8661 return;
8662 }
8663 let new_rows =
8664 cx.background_executor()
8665 .spawn({
8666 let snapshot = display_snapshot.clone();
8667 async move {
8668 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8669 }
8670 })
8671 .await;
8672 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8673
8674 this.update(&mut cx, |this, _| {
8675 this.clear_tasks();
8676 for (key, value) in rows {
8677 this.insert_tasks(key, value);
8678 }
8679 })
8680 .ok();
8681 })
8682 }
8683 fn fetch_runnable_ranges(
8684 snapshot: &DisplaySnapshot,
8685 range: Range<Anchor>,
8686 ) -> Vec<language::RunnableRange> {
8687 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8688 }
8689
8690 fn runnable_rows(
8691 project: Model<Project>,
8692 snapshot: DisplaySnapshot,
8693 runnable_ranges: Vec<RunnableRange>,
8694 mut cx: AsyncWindowContext,
8695 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8696 runnable_ranges
8697 .into_iter()
8698 .filter_map(|mut runnable| {
8699 let tasks = cx
8700 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8701 .ok()?;
8702 if tasks.is_empty() {
8703 return None;
8704 }
8705
8706 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8707
8708 let row = snapshot
8709 .buffer_snapshot
8710 .buffer_line_for_row(MultiBufferRow(point.row))?
8711 .1
8712 .start
8713 .row;
8714
8715 let context_range =
8716 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8717 Some((
8718 (runnable.buffer_id, row),
8719 RunnableTasks {
8720 templates: tasks,
8721 offset: MultiBufferOffset(runnable.run_range.start),
8722 context_range,
8723 column: point.column,
8724 extra_variables: runnable.extra_captures,
8725 },
8726 ))
8727 })
8728 .collect()
8729 }
8730
8731 fn templates_with_tags(
8732 project: &Model<Project>,
8733 runnable: &mut Runnable,
8734 cx: &WindowContext<'_>,
8735 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8736 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8737 let (worktree_id, file) = project
8738 .buffer_for_id(runnable.buffer, cx)
8739 .and_then(|buffer| buffer.read(cx).file())
8740 .map(|file| (file.worktree_id(cx), file.clone()))
8741 .unzip();
8742
8743 (
8744 project.task_store().read(cx).task_inventory().cloned(),
8745 worktree_id,
8746 file,
8747 )
8748 });
8749
8750 let tags = mem::take(&mut runnable.tags);
8751 let mut tags: Vec<_> = tags
8752 .into_iter()
8753 .flat_map(|tag| {
8754 let tag = tag.0.clone();
8755 inventory
8756 .as_ref()
8757 .into_iter()
8758 .flat_map(|inventory| {
8759 inventory.read(cx).list_tasks(
8760 file.clone(),
8761 Some(runnable.language.clone()),
8762 worktree_id,
8763 cx,
8764 )
8765 })
8766 .filter(move |(_, template)| {
8767 template.tags.iter().any(|source_tag| source_tag == &tag)
8768 })
8769 })
8770 .sorted_by_key(|(kind, _)| kind.to_owned())
8771 .collect();
8772 if let Some((leading_tag_source, _)) = tags.first() {
8773 // Strongest source wins; if we have worktree tag binding, prefer that to
8774 // global and language bindings;
8775 // if we have a global binding, prefer that to language binding.
8776 let first_mismatch = tags
8777 .iter()
8778 .position(|(tag_source, _)| tag_source != leading_tag_source);
8779 if let Some(index) = first_mismatch {
8780 tags.truncate(index);
8781 }
8782 }
8783
8784 tags
8785 }
8786
8787 pub fn move_to_enclosing_bracket(
8788 &mut self,
8789 _: &MoveToEnclosingBracket,
8790 cx: &mut ViewContext<Self>,
8791 ) {
8792 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8793 s.move_offsets_with(|snapshot, selection| {
8794 let Some(enclosing_bracket_ranges) =
8795 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8796 else {
8797 return;
8798 };
8799
8800 let mut best_length = usize::MAX;
8801 let mut best_inside = false;
8802 let mut best_in_bracket_range = false;
8803 let mut best_destination = None;
8804 for (open, close) in enclosing_bracket_ranges {
8805 let close = close.to_inclusive();
8806 let length = close.end() - open.start;
8807 let inside = selection.start >= open.end && selection.end <= *close.start();
8808 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8809 || close.contains(&selection.head());
8810
8811 // If best is next to a bracket and current isn't, skip
8812 if !in_bracket_range && best_in_bracket_range {
8813 continue;
8814 }
8815
8816 // Prefer smaller lengths unless best is inside and current isn't
8817 if length > best_length && (best_inside || !inside) {
8818 continue;
8819 }
8820
8821 best_length = length;
8822 best_inside = inside;
8823 best_in_bracket_range = in_bracket_range;
8824 best_destination = Some(
8825 if close.contains(&selection.start) && close.contains(&selection.end) {
8826 if inside {
8827 open.end
8828 } else {
8829 open.start
8830 }
8831 } else if inside {
8832 *close.start()
8833 } else {
8834 *close.end()
8835 },
8836 );
8837 }
8838
8839 if let Some(destination) = best_destination {
8840 selection.collapse_to(destination, SelectionGoal::None);
8841 }
8842 })
8843 });
8844 }
8845
8846 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8847 self.end_selection(cx);
8848 self.selection_history.mode = SelectionHistoryMode::Undoing;
8849 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8850 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8851 self.select_next_state = entry.select_next_state;
8852 self.select_prev_state = entry.select_prev_state;
8853 self.add_selections_state = entry.add_selections_state;
8854 self.request_autoscroll(Autoscroll::newest(), cx);
8855 }
8856 self.selection_history.mode = SelectionHistoryMode::Normal;
8857 }
8858
8859 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8860 self.end_selection(cx);
8861 self.selection_history.mode = SelectionHistoryMode::Redoing;
8862 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8863 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8864 self.select_next_state = entry.select_next_state;
8865 self.select_prev_state = entry.select_prev_state;
8866 self.add_selections_state = entry.add_selections_state;
8867 self.request_autoscroll(Autoscroll::newest(), cx);
8868 }
8869 self.selection_history.mode = SelectionHistoryMode::Normal;
8870 }
8871
8872 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8873 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8874 }
8875
8876 pub fn expand_excerpts_down(
8877 &mut self,
8878 action: &ExpandExcerptsDown,
8879 cx: &mut ViewContext<Self>,
8880 ) {
8881 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8882 }
8883
8884 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8885 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8886 }
8887
8888 pub fn expand_excerpts_for_direction(
8889 &mut self,
8890 lines: u32,
8891 direction: ExpandExcerptDirection,
8892 cx: &mut ViewContext<Self>,
8893 ) {
8894 let selections = self.selections.disjoint_anchors();
8895
8896 let lines = if lines == 0 {
8897 EditorSettings::get_global(cx).expand_excerpt_lines
8898 } else {
8899 lines
8900 };
8901
8902 self.buffer.update(cx, |buffer, cx| {
8903 buffer.expand_excerpts(
8904 selections
8905 .iter()
8906 .map(|selection| selection.head().excerpt_id)
8907 .dedup(),
8908 lines,
8909 direction,
8910 cx,
8911 )
8912 })
8913 }
8914
8915 pub fn expand_excerpt(
8916 &mut self,
8917 excerpt: ExcerptId,
8918 direction: ExpandExcerptDirection,
8919 cx: &mut ViewContext<Self>,
8920 ) {
8921 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8922 self.buffer.update(cx, |buffer, cx| {
8923 buffer.expand_excerpts([excerpt], lines, direction, cx)
8924 })
8925 }
8926
8927 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8928 self.go_to_diagnostic_impl(Direction::Next, cx)
8929 }
8930
8931 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8932 self.go_to_diagnostic_impl(Direction::Prev, cx)
8933 }
8934
8935 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8936 let buffer = self.buffer.read(cx).snapshot(cx);
8937 let selection = self.selections.newest::<usize>(cx);
8938
8939 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8940 if direction == Direction::Next {
8941 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8942 let (group_id, jump_to) = popover.activation_info();
8943 if self.activate_diagnostics(group_id, cx) {
8944 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8945 let mut new_selection = s.newest_anchor().clone();
8946 new_selection.collapse_to(jump_to, SelectionGoal::None);
8947 s.select_anchors(vec![new_selection.clone()]);
8948 });
8949 }
8950 return;
8951 }
8952 }
8953
8954 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8955 active_diagnostics
8956 .primary_range
8957 .to_offset(&buffer)
8958 .to_inclusive()
8959 });
8960 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8961 if active_primary_range.contains(&selection.head()) {
8962 *active_primary_range.start()
8963 } else {
8964 selection.head()
8965 }
8966 } else {
8967 selection.head()
8968 };
8969 let snapshot = self.snapshot(cx);
8970 loop {
8971 let diagnostics = if direction == Direction::Prev {
8972 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8973 } else {
8974 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8975 }
8976 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8977 let group = diagnostics
8978 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8979 // be sorted in a stable way
8980 // skip until we are at current active diagnostic, if it exists
8981 .skip_while(|entry| {
8982 (match direction {
8983 Direction::Prev => entry.range.start >= search_start,
8984 Direction::Next => entry.range.start <= search_start,
8985 }) && self
8986 .active_diagnostics
8987 .as_ref()
8988 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8989 })
8990 .find_map(|entry| {
8991 if entry.diagnostic.is_primary
8992 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8993 && !entry.range.is_empty()
8994 // if we match with the active diagnostic, skip it
8995 && Some(entry.diagnostic.group_id)
8996 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8997 {
8998 Some((entry.range, entry.diagnostic.group_id))
8999 } else {
9000 None
9001 }
9002 });
9003
9004 if let Some((primary_range, group_id)) = group {
9005 if self.activate_diagnostics(group_id, cx) {
9006 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9007 s.select(vec![Selection {
9008 id: selection.id,
9009 start: primary_range.start,
9010 end: primary_range.start,
9011 reversed: false,
9012 goal: SelectionGoal::None,
9013 }]);
9014 });
9015 }
9016 break;
9017 } else {
9018 // Cycle around to the start of the buffer, potentially moving back to the start of
9019 // the currently active diagnostic.
9020 active_primary_range.take();
9021 if direction == Direction::Prev {
9022 if search_start == buffer.len() {
9023 break;
9024 } else {
9025 search_start = buffer.len();
9026 }
9027 } else if search_start == 0 {
9028 break;
9029 } else {
9030 search_start = 0;
9031 }
9032 }
9033 }
9034 }
9035
9036 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9037 let snapshot = self.snapshot(cx);
9038 let selection = self.selections.newest::<Point>(cx);
9039 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9040 }
9041
9042 fn go_to_hunk_after_position(
9043 &mut self,
9044 snapshot: &EditorSnapshot,
9045 position: Point,
9046 cx: &mut ViewContext<'_, Editor>,
9047 ) -> Option<MultiBufferDiffHunk> {
9048 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9049 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9050 snapshot,
9051 position,
9052 ix > 0,
9053 snapshot.diff_map.diff_hunks_in_range(
9054 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9055 &snapshot.buffer_snapshot,
9056 ),
9057 cx,
9058 ) {
9059 return Some(hunk);
9060 }
9061 }
9062 None
9063 }
9064
9065 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9066 let snapshot = self.snapshot(cx);
9067 let selection = self.selections.newest::<Point>(cx);
9068 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9069 }
9070
9071 fn go_to_hunk_before_position(
9072 &mut self,
9073 snapshot: &EditorSnapshot,
9074 position: Point,
9075 cx: &mut ViewContext<'_, Editor>,
9076 ) -> Option<MultiBufferDiffHunk> {
9077 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9078 .into_iter()
9079 .enumerate()
9080 {
9081 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9082 snapshot,
9083 position,
9084 ix > 0,
9085 snapshot
9086 .diff_map
9087 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9088 cx,
9089 ) {
9090 return Some(hunk);
9091 }
9092 }
9093 None
9094 }
9095
9096 fn go_to_next_hunk_in_direction(
9097 &mut self,
9098 snapshot: &DisplaySnapshot,
9099 initial_point: Point,
9100 is_wrapped: bool,
9101 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9102 cx: &mut ViewContext<Editor>,
9103 ) -> Option<MultiBufferDiffHunk> {
9104 let display_point = initial_point.to_display_point(snapshot);
9105 let mut hunks = hunks
9106 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9107 .filter(|(display_hunk, _)| {
9108 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9109 })
9110 .dedup();
9111
9112 if let Some((display_hunk, hunk)) = hunks.next() {
9113 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9114 let row = display_hunk.start_display_row();
9115 let point = DisplayPoint::new(row, 0);
9116 s.select_display_ranges([point..point]);
9117 });
9118
9119 Some(hunk)
9120 } else {
9121 None
9122 }
9123 }
9124
9125 pub fn go_to_definition(
9126 &mut self,
9127 _: &GoToDefinition,
9128 cx: &mut ViewContext<Self>,
9129 ) -> Task<Result<Navigated>> {
9130 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9131 cx.spawn(|editor, mut cx| async move {
9132 if definition.await? == Navigated::Yes {
9133 return Ok(Navigated::Yes);
9134 }
9135 match editor.update(&mut cx, |editor, cx| {
9136 editor.find_all_references(&FindAllReferences, cx)
9137 })? {
9138 Some(references) => references.await,
9139 None => Ok(Navigated::No),
9140 }
9141 })
9142 }
9143
9144 pub fn go_to_declaration(
9145 &mut self,
9146 _: &GoToDeclaration,
9147 cx: &mut ViewContext<Self>,
9148 ) -> Task<Result<Navigated>> {
9149 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9150 }
9151
9152 pub fn go_to_declaration_split(
9153 &mut self,
9154 _: &GoToDeclaration,
9155 cx: &mut ViewContext<Self>,
9156 ) -> Task<Result<Navigated>> {
9157 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9158 }
9159
9160 pub fn go_to_implementation(
9161 &mut self,
9162 _: &GoToImplementation,
9163 cx: &mut ViewContext<Self>,
9164 ) -> Task<Result<Navigated>> {
9165 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9166 }
9167
9168 pub fn go_to_implementation_split(
9169 &mut self,
9170 _: &GoToImplementationSplit,
9171 cx: &mut ViewContext<Self>,
9172 ) -> Task<Result<Navigated>> {
9173 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9174 }
9175
9176 pub fn go_to_type_definition(
9177 &mut self,
9178 _: &GoToTypeDefinition,
9179 cx: &mut ViewContext<Self>,
9180 ) -> Task<Result<Navigated>> {
9181 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9182 }
9183
9184 pub fn go_to_definition_split(
9185 &mut self,
9186 _: &GoToDefinitionSplit,
9187 cx: &mut ViewContext<Self>,
9188 ) -> Task<Result<Navigated>> {
9189 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9190 }
9191
9192 pub fn go_to_type_definition_split(
9193 &mut self,
9194 _: &GoToTypeDefinitionSplit,
9195 cx: &mut ViewContext<Self>,
9196 ) -> Task<Result<Navigated>> {
9197 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9198 }
9199
9200 fn go_to_definition_of_kind(
9201 &mut self,
9202 kind: GotoDefinitionKind,
9203 split: bool,
9204 cx: &mut ViewContext<Self>,
9205 ) -> Task<Result<Navigated>> {
9206 let Some(provider) = self.semantics_provider.clone() else {
9207 return Task::ready(Ok(Navigated::No));
9208 };
9209 let head = self.selections.newest::<usize>(cx).head();
9210 let buffer = self.buffer.read(cx);
9211 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9212 text_anchor
9213 } else {
9214 return Task::ready(Ok(Navigated::No));
9215 };
9216
9217 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9218 return Task::ready(Ok(Navigated::No));
9219 };
9220
9221 cx.spawn(|editor, mut cx| async move {
9222 let definitions = definitions.await?;
9223 let navigated = editor
9224 .update(&mut cx, |editor, cx| {
9225 editor.navigate_to_hover_links(
9226 Some(kind),
9227 definitions
9228 .into_iter()
9229 .filter(|location| {
9230 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9231 })
9232 .map(HoverLink::Text)
9233 .collect::<Vec<_>>(),
9234 split,
9235 cx,
9236 )
9237 })?
9238 .await?;
9239 anyhow::Ok(navigated)
9240 })
9241 }
9242
9243 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9244 let position = self.selections.newest_anchor().head();
9245 let Some((buffer, buffer_position)) =
9246 self.buffer.read(cx).text_anchor_for_position(position, cx)
9247 else {
9248 return;
9249 };
9250
9251 cx.spawn(|editor, mut cx| async move {
9252 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9253 editor.update(&mut cx, |_, cx| {
9254 cx.open_url(&url);
9255 })
9256 } else {
9257 Ok(())
9258 }
9259 })
9260 .detach();
9261 }
9262
9263 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9264 let Some(workspace) = self.workspace() else {
9265 return;
9266 };
9267
9268 let position = self.selections.newest_anchor().head();
9269
9270 let Some((buffer, buffer_position)) =
9271 self.buffer.read(cx).text_anchor_for_position(position, cx)
9272 else {
9273 return;
9274 };
9275
9276 let project = self.project.clone();
9277
9278 cx.spawn(|_, mut cx| async move {
9279 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9280
9281 if let Some((_, path)) = result {
9282 workspace
9283 .update(&mut cx, |workspace, cx| {
9284 workspace.open_resolved_path(path, cx)
9285 })?
9286 .await?;
9287 }
9288 anyhow::Ok(())
9289 })
9290 .detach();
9291 }
9292
9293 pub(crate) fn navigate_to_hover_links(
9294 &mut self,
9295 kind: Option<GotoDefinitionKind>,
9296 mut definitions: Vec<HoverLink>,
9297 split: bool,
9298 cx: &mut ViewContext<Editor>,
9299 ) -> Task<Result<Navigated>> {
9300 // If there is one definition, just open it directly
9301 if definitions.len() == 1 {
9302 let definition = definitions.pop().unwrap();
9303
9304 enum TargetTaskResult {
9305 Location(Option<Location>),
9306 AlreadyNavigated,
9307 }
9308
9309 let target_task = match definition {
9310 HoverLink::Text(link) => {
9311 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9312 }
9313 HoverLink::InlayHint(lsp_location, server_id) => {
9314 let computation = self.compute_target_location(lsp_location, server_id, cx);
9315 cx.background_executor().spawn(async move {
9316 let location = computation.await?;
9317 Ok(TargetTaskResult::Location(location))
9318 })
9319 }
9320 HoverLink::Url(url) => {
9321 cx.open_url(&url);
9322 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9323 }
9324 HoverLink::File(path) => {
9325 if let Some(workspace) = self.workspace() {
9326 cx.spawn(|_, mut cx| async move {
9327 workspace
9328 .update(&mut cx, |workspace, cx| {
9329 workspace.open_resolved_path(path, cx)
9330 })?
9331 .await
9332 .map(|_| TargetTaskResult::AlreadyNavigated)
9333 })
9334 } else {
9335 Task::ready(Ok(TargetTaskResult::Location(None)))
9336 }
9337 }
9338 };
9339 cx.spawn(|editor, mut cx| async move {
9340 let target = match target_task.await.context("target resolution task")? {
9341 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9342 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9343 TargetTaskResult::Location(Some(target)) => target,
9344 };
9345
9346 editor.update(&mut cx, |editor, cx| {
9347 let Some(workspace) = editor.workspace() else {
9348 return Navigated::No;
9349 };
9350 let pane = workspace.read(cx).active_pane().clone();
9351
9352 let range = target.range.to_offset(target.buffer.read(cx));
9353 let range = editor.range_for_match(&range);
9354
9355 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9356 let buffer = target.buffer.read(cx);
9357 let range = check_multiline_range(buffer, range);
9358 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9359 s.select_ranges([range]);
9360 });
9361 } else {
9362 cx.window_context().defer(move |cx| {
9363 let target_editor: View<Self> =
9364 workspace.update(cx, |workspace, cx| {
9365 let pane = if split {
9366 workspace.adjacent_pane(cx)
9367 } else {
9368 workspace.active_pane().clone()
9369 };
9370
9371 workspace.open_project_item(
9372 pane,
9373 target.buffer.clone(),
9374 true,
9375 true,
9376 cx,
9377 )
9378 });
9379 target_editor.update(cx, |target_editor, cx| {
9380 // When selecting a definition in a different buffer, disable the nav history
9381 // to avoid creating a history entry at the previous cursor location.
9382 pane.update(cx, |pane, _| pane.disable_history());
9383 let buffer = target.buffer.read(cx);
9384 let range = check_multiline_range(buffer, range);
9385 target_editor.change_selections(
9386 Some(Autoscroll::focused()),
9387 cx,
9388 |s| {
9389 s.select_ranges([range]);
9390 },
9391 );
9392 pane.update(cx, |pane, _| pane.enable_history());
9393 });
9394 });
9395 }
9396 Navigated::Yes
9397 })
9398 })
9399 } else if !definitions.is_empty() {
9400 cx.spawn(|editor, mut cx| async move {
9401 let (title, location_tasks, workspace) = editor
9402 .update(&mut cx, |editor, cx| {
9403 let tab_kind = match kind {
9404 Some(GotoDefinitionKind::Implementation) => "Implementations",
9405 _ => "Definitions",
9406 };
9407 let title = definitions
9408 .iter()
9409 .find_map(|definition| match definition {
9410 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9411 let buffer = origin.buffer.read(cx);
9412 format!(
9413 "{} for {}",
9414 tab_kind,
9415 buffer
9416 .text_for_range(origin.range.clone())
9417 .collect::<String>()
9418 )
9419 }),
9420 HoverLink::InlayHint(_, _) => None,
9421 HoverLink::Url(_) => None,
9422 HoverLink::File(_) => None,
9423 })
9424 .unwrap_or(tab_kind.to_string());
9425 let location_tasks = definitions
9426 .into_iter()
9427 .map(|definition| match definition {
9428 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9429 HoverLink::InlayHint(lsp_location, server_id) => {
9430 editor.compute_target_location(lsp_location, server_id, cx)
9431 }
9432 HoverLink::Url(_) => Task::ready(Ok(None)),
9433 HoverLink::File(_) => Task::ready(Ok(None)),
9434 })
9435 .collect::<Vec<_>>();
9436 (title, location_tasks, editor.workspace().clone())
9437 })
9438 .context("location tasks preparation")?;
9439
9440 let locations = future::join_all(location_tasks)
9441 .await
9442 .into_iter()
9443 .filter_map(|location| location.transpose())
9444 .collect::<Result<_>>()
9445 .context("location tasks")?;
9446
9447 let Some(workspace) = workspace else {
9448 return Ok(Navigated::No);
9449 };
9450 let opened = workspace
9451 .update(&mut cx, |workspace, cx| {
9452 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9453 })
9454 .ok();
9455
9456 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9457 })
9458 } else {
9459 Task::ready(Ok(Navigated::No))
9460 }
9461 }
9462
9463 fn compute_target_location(
9464 &self,
9465 lsp_location: lsp::Location,
9466 server_id: LanguageServerId,
9467 cx: &mut ViewContext<Self>,
9468 ) -> Task<anyhow::Result<Option<Location>>> {
9469 let Some(project) = self.project.clone() else {
9470 return Task::Ready(Some(Ok(None)));
9471 };
9472
9473 cx.spawn(move |editor, mut cx| async move {
9474 let location_task = editor.update(&mut cx, |_, cx| {
9475 project.update(cx, |project, cx| {
9476 let language_server_name = project
9477 .language_server_statuses(cx)
9478 .find(|(id, _)| server_id == *id)
9479 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9480 language_server_name.map(|language_server_name| {
9481 project.open_local_buffer_via_lsp(
9482 lsp_location.uri.clone(),
9483 server_id,
9484 language_server_name,
9485 cx,
9486 )
9487 })
9488 })
9489 })?;
9490 let location = match location_task {
9491 Some(task) => Some({
9492 let target_buffer_handle = task.await.context("open local buffer")?;
9493 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9494 let target_start = target_buffer
9495 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9496 let target_end = target_buffer
9497 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9498 target_buffer.anchor_after(target_start)
9499 ..target_buffer.anchor_before(target_end)
9500 })?;
9501 Location {
9502 buffer: target_buffer_handle,
9503 range,
9504 }
9505 }),
9506 None => None,
9507 };
9508 Ok(location)
9509 })
9510 }
9511
9512 pub fn find_all_references(
9513 &mut self,
9514 _: &FindAllReferences,
9515 cx: &mut ViewContext<Self>,
9516 ) -> Option<Task<Result<Navigated>>> {
9517 let selection = self.selections.newest::<usize>(cx);
9518 let multi_buffer = self.buffer.read(cx);
9519 let head = selection.head();
9520
9521 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9522 let head_anchor = multi_buffer_snapshot.anchor_at(
9523 head,
9524 if head < selection.tail() {
9525 Bias::Right
9526 } else {
9527 Bias::Left
9528 },
9529 );
9530
9531 match self
9532 .find_all_references_task_sources
9533 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9534 {
9535 Ok(_) => {
9536 log::info!(
9537 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9538 );
9539 return None;
9540 }
9541 Err(i) => {
9542 self.find_all_references_task_sources.insert(i, head_anchor);
9543 }
9544 }
9545
9546 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9547 let workspace = self.workspace()?;
9548 let project = workspace.read(cx).project().clone();
9549 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9550 Some(cx.spawn(|editor, mut cx| async move {
9551 let _cleanup = defer({
9552 let mut cx = cx.clone();
9553 move || {
9554 let _ = editor.update(&mut cx, |editor, _| {
9555 if let Ok(i) =
9556 editor
9557 .find_all_references_task_sources
9558 .binary_search_by(|anchor| {
9559 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9560 })
9561 {
9562 editor.find_all_references_task_sources.remove(i);
9563 }
9564 });
9565 }
9566 });
9567
9568 let locations = references.await?;
9569 if locations.is_empty() {
9570 return anyhow::Ok(Navigated::No);
9571 }
9572
9573 workspace.update(&mut cx, |workspace, cx| {
9574 let title = locations
9575 .first()
9576 .as_ref()
9577 .map(|location| {
9578 let buffer = location.buffer.read(cx);
9579 format!(
9580 "References to `{}`",
9581 buffer
9582 .text_for_range(location.range.clone())
9583 .collect::<String>()
9584 )
9585 })
9586 .unwrap();
9587 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9588 Navigated::Yes
9589 })
9590 }))
9591 }
9592
9593 /// Opens a multibuffer with the given project locations in it
9594 pub fn open_locations_in_multibuffer(
9595 workspace: &mut Workspace,
9596 mut locations: Vec<Location>,
9597 title: String,
9598 split: bool,
9599 cx: &mut ViewContext<Workspace>,
9600 ) {
9601 // If there are multiple definitions, open them in a multibuffer
9602 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9603 let mut locations = locations.into_iter().peekable();
9604 let mut ranges_to_highlight = Vec::new();
9605 let capability = workspace.project().read(cx).capability();
9606
9607 let excerpt_buffer = cx.new_model(|cx| {
9608 let mut multibuffer = MultiBuffer::new(capability);
9609 while let Some(location) = locations.next() {
9610 let buffer = location.buffer.read(cx);
9611 let mut ranges_for_buffer = Vec::new();
9612 let range = location.range.to_offset(buffer);
9613 ranges_for_buffer.push(range.clone());
9614
9615 while let Some(next_location) = locations.peek() {
9616 if next_location.buffer == location.buffer {
9617 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9618 locations.next();
9619 } else {
9620 break;
9621 }
9622 }
9623
9624 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9625 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9626 location.buffer.clone(),
9627 ranges_for_buffer,
9628 DEFAULT_MULTIBUFFER_CONTEXT,
9629 cx,
9630 ))
9631 }
9632
9633 multibuffer.with_title(title)
9634 });
9635
9636 let editor = cx.new_view(|cx| {
9637 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9638 });
9639 editor.update(cx, |editor, cx| {
9640 if let Some(first_range) = ranges_to_highlight.first() {
9641 editor.change_selections(None, cx, |selections| {
9642 selections.clear_disjoint();
9643 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9644 });
9645 }
9646 editor.highlight_background::<Self>(
9647 &ranges_to_highlight,
9648 |theme| theme.editor_highlighted_line_background,
9649 cx,
9650 );
9651 });
9652
9653 let item = Box::new(editor);
9654 let item_id = item.item_id();
9655
9656 if split {
9657 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9658 } else {
9659 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9660 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9661 pane.close_current_preview_item(cx)
9662 } else {
9663 None
9664 }
9665 });
9666 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9667 }
9668 workspace.active_pane().update(cx, |pane, cx| {
9669 pane.set_preview_item_id(Some(item_id), cx);
9670 });
9671 }
9672
9673 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9674 use language::ToOffset as _;
9675
9676 let provider = self.semantics_provider.clone()?;
9677 let selection = self.selections.newest_anchor().clone();
9678 let (cursor_buffer, cursor_buffer_position) = self
9679 .buffer
9680 .read(cx)
9681 .text_anchor_for_position(selection.head(), cx)?;
9682 let (tail_buffer, cursor_buffer_position_end) = self
9683 .buffer
9684 .read(cx)
9685 .text_anchor_for_position(selection.tail(), cx)?;
9686 if tail_buffer != cursor_buffer {
9687 return None;
9688 }
9689
9690 let snapshot = cursor_buffer.read(cx).snapshot();
9691 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9692 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9693 let prepare_rename = provider
9694 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9695 .unwrap_or_else(|| Task::ready(Ok(None)));
9696 drop(snapshot);
9697
9698 Some(cx.spawn(|this, mut cx| async move {
9699 let rename_range = if let Some(range) = prepare_rename.await? {
9700 Some(range)
9701 } else {
9702 this.update(&mut cx, |this, cx| {
9703 let buffer = this.buffer.read(cx).snapshot(cx);
9704 let mut buffer_highlights = this
9705 .document_highlights_for_position(selection.head(), &buffer)
9706 .filter(|highlight| {
9707 highlight.start.excerpt_id == selection.head().excerpt_id
9708 && highlight.end.excerpt_id == selection.head().excerpt_id
9709 });
9710 buffer_highlights
9711 .next()
9712 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9713 })?
9714 };
9715 if let Some(rename_range) = rename_range {
9716 this.update(&mut cx, |this, cx| {
9717 let snapshot = cursor_buffer.read(cx).snapshot();
9718 let rename_buffer_range = rename_range.to_offset(&snapshot);
9719 let cursor_offset_in_rename_range =
9720 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9721 let cursor_offset_in_rename_range_end =
9722 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9723
9724 this.take_rename(false, cx);
9725 let buffer = this.buffer.read(cx).read(cx);
9726 let cursor_offset = selection.head().to_offset(&buffer);
9727 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9728 let rename_end = rename_start + rename_buffer_range.len();
9729 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9730 let mut old_highlight_id = None;
9731 let old_name: Arc<str> = buffer
9732 .chunks(rename_start..rename_end, true)
9733 .map(|chunk| {
9734 if old_highlight_id.is_none() {
9735 old_highlight_id = chunk.syntax_highlight_id;
9736 }
9737 chunk.text
9738 })
9739 .collect::<String>()
9740 .into();
9741
9742 drop(buffer);
9743
9744 // Position the selection in the rename editor so that it matches the current selection.
9745 this.show_local_selections = false;
9746 let rename_editor = cx.new_view(|cx| {
9747 let mut editor = Editor::single_line(cx);
9748 editor.buffer.update(cx, |buffer, cx| {
9749 buffer.edit([(0..0, old_name.clone())], None, cx)
9750 });
9751 let rename_selection_range = match cursor_offset_in_rename_range
9752 .cmp(&cursor_offset_in_rename_range_end)
9753 {
9754 Ordering::Equal => {
9755 editor.select_all(&SelectAll, cx);
9756 return editor;
9757 }
9758 Ordering::Less => {
9759 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9760 }
9761 Ordering::Greater => {
9762 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9763 }
9764 };
9765 if rename_selection_range.end > old_name.len() {
9766 editor.select_all(&SelectAll, cx);
9767 } else {
9768 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9769 s.select_ranges([rename_selection_range]);
9770 });
9771 }
9772 editor
9773 });
9774 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
9775 if e == &EditorEvent::Focused {
9776 cx.emit(EditorEvent::FocusedIn)
9777 }
9778 })
9779 .detach();
9780
9781 let write_highlights =
9782 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9783 let read_highlights =
9784 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9785 let ranges = write_highlights
9786 .iter()
9787 .flat_map(|(_, ranges)| ranges.iter())
9788 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9789 .cloned()
9790 .collect();
9791
9792 this.highlight_text::<Rename>(
9793 ranges,
9794 HighlightStyle {
9795 fade_out: Some(0.6),
9796 ..Default::default()
9797 },
9798 cx,
9799 );
9800 let rename_focus_handle = rename_editor.focus_handle(cx);
9801 cx.focus(&rename_focus_handle);
9802 let block_id = this.insert_blocks(
9803 [BlockProperties {
9804 style: BlockStyle::Flex,
9805 placement: BlockPlacement::Below(range.start),
9806 height: 1,
9807 render: Arc::new({
9808 let rename_editor = rename_editor.clone();
9809 move |cx: &mut BlockContext| {
9810 let mut text_style = cx.editor_style.text.clone();
9811 if let Some(highlight_style) = old_highlight_id
9812 .and_then(|h| h.style(&cx.editor_style.syntax))
9813 {
9814 text_style = text_style.highlight(highlight_style);
9815 }
9816 div()
9817 .block_mouse_down()
9818 .pl(cx.anchor_x)
9819 .child(EditorElement::new(
9820 &rename_editor,
9821 EditorStyle {
9822 background: cx.theme().system().transparent,
9823 local_player: cx.editor_style.local_player,
9824 text: text_style,
9825 scrollbar_width: cx.editor_style.scrollbar_width,
9826 syntax: cx.editor_style.syntax.clone(),
9827 status: cx.editor_style.status.clone(),
9828 inlay_hints_style: HighlightStyle {
9829 font_weight: Some(FontWeight::BOLD),
9830 ..make_inlay_hints_style(cx)
9831 },
9832 suggestions_style: HighlightStyle {
9833 color: Some(cx.theme().status().predictive),
9834 ..HighlightStyle::default()
9835 },
9836 ..EditorStyle::default()
9837 },
9838 ))
9839 .into_any_element()
9840 }
9841 }),
9842 priority: 0,
9843 }],
9844 Some(Autoscroll::fit()),
9845 cx,
9846 )[0];
9847 this.pending_rename = Some(RenameState {
9848 range,
9849 old_name,
9850 editor: rename_editor,
9851 block_id,
9852 });
9853 })?;
9854 }
9855
9856 Ok(())
9857 }))
9858 }
9859
9860 pub fn confirm_rename(
9861 &mut self,
9862 _: &ConfirmRename,
9863 cx: &mut ViewContext<Self>,
9864 ) -> Option<Task<Result<()>>> {
9865 let rename = self.take_rename(false, cx)?;
9866 let workspace = self.workspace()?.downgrade();
9867 let (buffer, start) = self
9868 .buffer
9869 .read(cx)
9870 .text_anchor_for_position(rename.range.start, cx)?;
9871 let (end_buffer, _) = self
9872 .buffer
9873 .read(cx)
9874 .text_anchor_for_position(rename.range.end, cx)?;
9875 if buffer != end_buffer {
9876 return None;
9877 }
9878
9879 let old_name = rename.old_name;
9880 let new_name = rename.editor.read(cx).text(cx);
9881
9882 let rename = self.semantics_provider.as_ref()?.perform_rename(
9883 &buffer,
9884 start,
9885 new_name.clone(),
9886 cx,
9887 )?;
9888
9889 Some(cx.spawn(|editor, mut cx| async move {
9890 let project_transaction = rename.await?;
9891 Self::open_project_transaction(
9892 &editor,
9893 workspace,
9894 project_transaction,
9895 format!("Rename: {} → {}", old_name, new_name),
9896 cx.clone(),
9897 )
9898 .await?;
9899
9900 editor.update(&mut cx, |editor, cx| {
9901 editor.refresh_document_highlights(cx);
9902 })?;
9903 Ok(())
9904 }))
9905 }
9906
9907 fn take_rename(
9908 &mut self,
9909 moving_cursor: bool,
9910 cx: &mut ViewContext<Self>,
9911 ) -> Option<RenameState> {
9912 let rename = self.pending_rename.take()?;
9913 if rename.editor.focus_handle(cx).is_focused(cx) {
9914 cx.focus(&self.focus_handle);
9915 }
9916
9917 self.remove_blocks(
9918 [rename.block_id].into_iter().collect(),
9919 Some(Autoscroll::fit()),
9920 cx,
9921 );
9922 self.clear_highlights::<Rename>(cx);
9923 self.show_local_selections = true;
9924
9925 if moving_cursor {
9926 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
9927 editor.selections.newest::<usize>(cx).head()
9928 });
9929
9930 // Update the selection to match the position of the selection inside
9931 // the rename editor.
9932 let snapshot = self.buffer.read(cx).read(cx);
9933 let rename_range = rename.range.to_offset(&snapshot);
9934 let cursor_in_editor = snapshot
9935 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9936 .min(rename_range.end);
9937 drop(snapshot);
9938
9939 self.change_selections(None, cx, |s| {
9940 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9941 });
9942 } else {
9943 self.refresh_document_highlights(cx);
9944 }
9945
9946 Some(rename)
9947 }
9948
9949 pub fn pending_rename(&self) -> Option<&RenameState> {
9950 self.pending_rename.as_ref()
9951 }
9952
9953 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9954 let project = match &self.project {
9955 Some(project) => project.clone(),
9956 None => return None,
9957 };
9958
9959 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
9960 }
9961
9962 fn format_selections(
9963 &mut self,
9964 _: &FormatSelections,
9965 cx: &mut ViewContext<Self>,
9966 ) -> Option<Task<Result<()>>> {
9967 let project = match &self.project {
9968 Some(project) => project.clone(),
9969 None => return None,
9970 };
9971
9972 let selections = self
9973 .selections
9974 .all_adjusted(cx)
9975 .into_iter()
9976 .filter(|s| !s.is_empty())
9977 .collect_vec();
9978
9979 Some(self.perform_format(
9980 project,
9981 FormatTrigger::Manual,
9982 FormatTarget::Ranges(selections),
9983 cx,
9984 ))
9985 }
9986
9987 fn perform_format(
9988 &mut self,
9989 project: Model<Project>,
9990 trigger: FormatTrigger,
9991 target: FormatTarget,
9992 cx: &mut ViewContext<Self>,
9993 ) -> Task<Result<()>> {
9994 let buffer = self.buffer().clone();
9995 let mut buffers = buffer.read(cx).all_buffers();
9996 if trigger == FormatTrigger::Save {
9997 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9998 }
9999
10000 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10001 let format = project.update(cx, |project, cx| {
10002 project.format(buffers, true, trigger, target, cx)
10003 });
10004
10005 cx.spawn(|_, mut cx| async move {
10006 let transaction = futures::select_biased! {
10007 () = timeout => {
10008 log::warn!("timed out waiting for formatting");
10009 None
10010 }
10011 transaction = format.log_err().fuse() => transaction,
10012 };
10013
10014 buffer
10015 .update(&mut cx, |buffer, cx| {
10016 if let Some(transaction) = transaction {
10017 if !buffer.is_singleton() {
10018 buffer.push_transaction(&transaction.0, cx);
10019 }
10020 }
10021
10022 cx.notify();
10023 })
10024 .ok();
10025
10026 Ok(())
10027 })
10028 }
10029
10030 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10031 if let Some(project) = self.project.clone() {
10032 self.buffer.update(cx, |multi_buffer, cx| {
10033 project.update(cx, |project, cx| {
10034 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10035 });
10036 })
10037 }
10038 }
10039
10040 fn cancel_language_server_work(
10041 &mut self,
10042 _: &actions::CancelLanguageServerWork,
10043 cx: &mut ViewContext<Self>,
10044 ) {
10045 if let Some(project) = self.project.clone() {
10046 self.buffer.update(cx, |multi_buffer, cx| {
10047 project.update(cx, |project, cx| {
10048 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10049 });
10050 })
10051 }
10052 }
10053
10054 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10055 cx.show_character_palette();
10056 }
10057
10058 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10059 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10060 let buffer = self.buffer.read(cx).snapshot(cx);
10061 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10062 let is_valid = buffer
10063 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10064 .any(|entry| {
10065 entry.diagnostic.is_primary
10066 && !entry.range.is_empty()
10067 && entry.range.start == primary_range_start
10068 && entry.diagnostic.message == active_diagnostics.primary_message
10069 });
10070
10071 if is_valid != active_diagnostics.is_valid {
10072 active_diagnostics.is_valid = is_valid;
10073 let mut new_styles = HashMap::default();
10074 for (block_id, diagnostic) in &active_diagnostics.blocks {
10075 new_styles.insert(
10076 *block_id,
10077 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10078 );
10079 }
10080 self.display_map.update(cx, |display_map, _cx| {
10081 display_map.replace_blocks(new_styles)
10082 });
10083 }
10084 }
10085 }
10086
10087 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10088 self.dismiss_diagnostics(cx);
10089 let snapshot = self.snapshot(cx);
10090 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10091 let buffer = self.buffer.read(cx).snapshot(cx);
10092
10093 let mut primary_range = None;
10094 let mut primary_message = None;
10095 let mut group_end = Point::zero();
10096 let diagnostic_group = buffer
10097 .diagnostic_group::<MultiBufferPoint>(group_id)
10098 .filter_map(|entry| {
10099 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10100 && (entry.range.start.row == entry.range.end.row
10101 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10102 {
10103 return None;
10104 }
10105 if entry.range.end > group_end {
10106 group_end = entry.range.end;
10107 }
10108 if entry.diagnostic.is_primary {
10109 primary_range = Some(entry.range.clone());
10110 primary_message = Some(entry.diagnostic.message.clone());
10111 }
10112 Some(entry)
10113 })
10114 .collect::<Vec<_>>();
10115 let primary_range = primary_range?;
10116 let primary_message = primary_message?;
10117 let primary_range =
10118 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10119
10120 let blocks = display_map
10121 .insert_blocks(
10122 diagnostic_group.iter().map(|entry| {
10123 let diagnostic = entry.diagnostic.clone();
10124 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10125 BlockProperties {
10126 style: BlockStyle::Fixed,
10127 placement: BlockPlacement::Below(
10128 buffer.anchor_after(entry.range.start),
10129 ),
10130 height: message_height,
10131 render: diagnostic_block_renderer(diagnostic, None, true, true),
10132 priority: 0,
10133 }
10134 }),
10135 cx,
10136 )
10137 .into_iter()
10138 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10139 .collect();
10140
10141 Some(ActiveDiagnosticGroup {
10142 primary_range,
10143 primary_message,
10144 group_id,
10145 blocks,
10146 is_valid: true,
10147 })
10148 });
10149 self.active_diagnostics.is_some()
10150 }
10151
10152 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10153 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10154 self.display_map.update(cx, |display_map, cx| {
10155 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10156 });
10157 cx.notify();
10158 }
10159 }
10160
10161 pub fn set_selections_from_remote(
10162 &mut self,
10163 selections: Vec<Selection<Anchor>>,
10164 pending_selection: Option<Selection<Anchor>>,
10165 cx: &mut ViewContext<Self>,
10166 ) {
10167 let old_cursor_position = self.selections.newest_anchor().head();
10168 self.selections.change_with(cx, |s| {
10169 s.select_anchors(selections);
10170 if let Some(pending_selection) = pending_selection {
10171 s.set_pending(pending_selection, SelectMode::Character);
10172 } else {
10173 s.clear_pending();
10174 }
10175 });
10176 self.selections_did_change(false, &old_cursor_position, true, cx);
10177 }
10178
10179 fn push_to_selection_history(&mut self) {
10180 self.selection_history.push(SelectionHistoryEntry {
10181 selections: self.selections.disjoint_anchors(),
10182 select_next_state: self.select_next_state.clone(),
10183 select_prev_state: self.select_prev_state.clone(),
10184 add_selections_state: self.add_selections_state.clone(),
10185 });
10186 }
10187
10188 pub fn transact(
10189 &mut self,
10190 cx: &mut ViewContext<Self>,
10191 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10192 ) -> Option<TransactionId> {
10193 self.start_transaction_at(Instant::now(), cx);
10194 update(self, cx);
10195 self.end_transaction_at(Instant::now(), cx)
10196 }
10197
10198 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10199 self.end_selection(cx);
10200 if let Some(tx_id) = self
10201 .buffer
10202 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10203 {
10204 self.selection_history
10205 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10206 cx.emit(EditorEvent::TransactionBegun {
10207 transaction_id: tx_id,
10208 })
10209 }
10210 }
10211
10212 fn end_transaction_at(
10213 &mut self,
10214 now: Instant,
10215 cx: &mut ViewContext<Self>,
10216 ) -> Option<TransactionId> {
10217 if let Some(transaction_id) = self
10218 .buffer
10219 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10220 {
10221 if let Some((_, end_selections)) =
10222 self.selection_history.transaction_mut(transaction_id)
10223 {
10224 *end_selections = Some(self.selections.disjoint_anchors());
10225 } else {
10226 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10227 }
10228
10229 cx.emit(EditorEvent::Edited { transaction_id });
10230 Some(transaction_id)
10231 } else {
10232 None
10233 }
10234 }
10235
10236 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10237 let selection = self.selections.newest::<Point>(cx);
10238
10239 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10240 let range = if selection.is_empty() {
10241 let point = selection.head().to_display_point(&display_map);
10242 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10243 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10244 .to_point(&display_map);
10245 start..end
10246 } else {
10247 selection.range()
10248 };
10249 if display_map.folds_in_range(range).next().is_some() {
10250 self.unfold_lines(&Default::default(), cx)
10251 } else {
10252 self.fold(&Default::default(), cx)
10253 }
10254 }
10255
10256 pub fn toggle_fold_recursive(
10257 &mut self,
10258 _: &actions::ToggleFoldRecursive,
10259 cx: &mut ViewContext<Self>,
10260 ) {
10261 let selection = self.selections.newest::<Point>(cx);
10262
10263 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10264 let range = if selection.is_empty() {
10265 let point = selection.head().to_display_point(&display_map);
10266 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10267 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10268 .to_point(&display_map);
10269 start..end
10270 } else {
10271 selection.range()
10272 };
10273 if display_map.folds_in_range(range).next().is_some() {
10274 self.unfold_recursive(&Default::default(), cx)
10275 } else {
10276 self.fold_recursive(&Default::default(), cx)
10277 }
10278 }
10279
10280 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10281 let mut to_fold = Vec::new();
10282 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10283 let selections = self.selections.all_adjusted(cx);
10284
10285 for selection in selections {
10286 let range = selection.range().sorted();
10287 let buffer_start_row = range.start.row;
10288
10289 if range.start.row != range.end.row {
10290 let mut found = false;
10291 let mut row = range.start.row;
10292 while row <= range.end.row {
10293 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10294 found = true;
10295 row = crease.range().end.row + 1;
10296 to_fold.push(crease);
10297 } else {
10298 row += 1
10299 }
10300 }
10301 if found {
10302 continue;
10303 }
10304 }
10305
10306 for row in (0..=range.start.row).rev() {
10307 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10308 if crease.range().end.row >= buffer_start_row {
10309 to_fold.push(crease);
10310 if row <= range.start.row {
10311 break;
10312 }
10313 }
10314 }
10315 }
10316 }
10317
10318 self.fold_creases(to_fold, true, cx);
10319 }
10320
10321 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10322 if !self.buffer.read(cx).is_singleton() {
10323 return;
10324 }
10325
10326 let fold_at_level = fold_at.level;
10327 let snapshot = self.buffer.read(cx).snapshot(cx);
10328 let mut to_fold = Vec::new();
10329 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10330
10331 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10332 while start_row < end_row {
10333 match self
10334 .snapshot(cx)
10335 .crease_for_buffer_row(MultiBufferRow(start_row))
10336 {
10337 Some(crease) => {
10338 let nested_start_row = crease.range().start.row + 1;
10339 let nested_end_row = crease.range().end.row;
10340
10341 if current_level < fold_at_level {
10342 stack.push((nested_start_row, nested_end_row, current_level + 1));
10343 } else if current_level == fold_at_level {
10344 to_fold.push(crease);
10345 }
10346
10347 start_row = nested_end_row + 1;
10348 }
10349 None => start_row += 1,
10350 }
10351 }
10352 }
10353
10354 self.fold_creases(to_fold, true, cx);
10355 }
10356
10357 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10358 if !self.buffer.read(cx).is_singleton() {
10359 return;
10360 }
10361
10362 let mut fold_ranges = Vec::new();
10363 let snapshot = self.buffer.read(cx).snapshot(cx);
10364
10365 for row in 0..snapshot.max_row().0 {
10366 if let Some(foldable_range) =
10367 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10368 {
10369 fold_ranges.push(foldable_range);
10370 }
10371 }
10372
10373 self.fold_creases(fold_ranges, true, cx);
10374 }
10375
10376 pub fn fold_function_bodies(
10377 &mut self,
10378 _: &actions::FoldFunctionBodies,
10379 cx: &mut ViewContext<Self>,
10380 ) {
10381 let snapshot = self.buffer.read(cx).snapshot(cx);
10382 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10383 return;
10384 };
10385 let creases = buffer
10386 .function_body_fold_ranges(0..buffer.len())
10387 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10388 .collect();
10389
10390 self.fold_creases(creases, true, cx);
10391 }
10392
10393 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10394 let mut to_fold = Vec::new();
10395 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10396 let selections = self.selections.all_adjusted(cx);
10397
10398 for selection in selections {
10399 let range = selection.range().sorted();
10400 let buffer_start_row = range.start.row;
10401
10402 if range.start.row != range.end.row {
10403 let mut found = false;
10404 for row in range.start.row..=range.end.row {
10405 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10406 found = true;
10407 to_fold.push(crease);
10408 }
10409 }
10410 if found {
10411 continue;
10412 }
10413 }
10414
10415 for row in (0..=range.start.row).rev() {
10416 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10417 if crease.range().end.row >= buffer_start_row {
10418 to_fold.push(crease);
10419 } else {
10420 break;
10421 }
10422 }
10423 }
10424 }
10425
10426 self.fold_creases(to_fold, true, cx);
10427 }
10428
10429 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10430 let buffer_row = fold_at.buffer_row;
10431 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10432
10433 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10434 let autoscroll = self
10435 .selections
10436 .all::<Point>(cx)
10437 .iter()
10438 .any(|selection| crease.range().overlaps(&selection.range()));
10439
10440 self.fold_creases(vec![crease], autoscroll, cx);
10441 }
10442 }
10443
10444 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10445 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10446 let buffer = &display_map.buffer_snapshot;
10447 let selections = self.selections.all::<Point>(cx);
10448 let ranges = selections
10449 .iter()
10450 .map(|s| {
10451 let range = s.display_range(&display_map).sorted();
10452 let mut start = range.start.to_point(&display_map);
10453 let mut end = range.end.to_point(&display_map);
10454 start.column = 0;
10455 end.column = buffer.line_len(MultiBufferRow(end.row));
10456 start..end
10457 })
10458 .collect::<Vec<_>>();
10459
10460 self.unfold_ranges(&ranges, true, true, cx);
10461 }
10462
10463 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10464 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10465 let selections = self.selections.all::<Point>(cx);
10466 let ranges = selections
10467 .iter()
10468 .map(|s| {
10469 let mut range = s.display_range(&display_map).sorted();
10470 *range.start.column_mut() = 0;
10471 *range.end.column_mut() = display_map.line_len(range.end.row());
10472 let start = range.start.to_point(&display_map);
10473 let end = range.end.to_point(&display_map);
10474 start..end
10475 })
10476 .collect::<Vec<_>>();
10477
10478 self.unfold_ranges(&ranges, true, true, cx);
10479 }
10480
10481 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10482 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10483
10484 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10485 ..Point::new(
10486 unfold_at.buffer_row.0,
10487 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10488 );
10489
10490 let autoscroll = self
10491 .selections
10492 .all::<Point>(cx)
10493 .iter()
10494 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10495
10496 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10497 }
10498
10499 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10500 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10501 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10502 }
10503
10504 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10505 let selections = self.selections.all::<Point>(cx);
10506 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10507 let line_mode = self.selections.line_mode;
10508 let ranges = selections
10509 .into_iter()
10510 .map(|s| {
10511 if line_mode {
10512 let start = Point::new(s.start.row, 0);
10513 let end = Point::new(
10514 s.end.row,
10515 display_map
10516 .buffer_snapshot
10517 .line_len(MultiBufferRow(s.end.row)),
10518 );
10519 Crease::simple(start..end, display_map.fold_placeholder.clone())
10520 } else {
10521 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10522 }
10523 })
10524 .collect::<Vec<_>>();
10525 self.fold_creases(ranges, true, cx);
10526 }
10527
10528 pub fn fold_creases<T: ToOffset + Clone>(
10529 &mut self,
10530 creases: Vec<Crease<T>>,
10531 auto_scroll: bool,
10532 cx: &mut ViewContext<Self>,
10533 ) {
10534 if creases.is_empty() {
10535 return;
10536 }
10537
10538 let mut buffers_affected = HashSet::default();
10539 let multi_buffer = self.buffer().read(cx);
10540 for crease in &creases {
10541 if let Some((_, buffer, _)) =
10542 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10543 {
10544 buffers_affected.insert(buffer.read(cx).remote_id());
10545 };
10546 }
10547
10548 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10549
10550 if auto_scroll {
10551 self.request_autoscroll(Autoscroll::fit(), cx);
10552 }
10553
10554 for buffer_id in buffers_affected {
10555 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10556 }
10557
10558 cx.notify();
10559
10560 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10561 // Clear diagnostics block when folding a range that contains it.
10562 let snapshot = self.snapshot(cx);
10563 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10564 drop(snapshot);
10565 self.active_diagnostics = Some(active_diagnostics);
10566 self.dismiss_diagnostics(cx);
10567 } else {
10568 self.active_diagnostics = Some(active_diagnostics);
10569 }
10570 }
10571
10572 self.scrollbar_marker_state.dirty = true;
10573 }
10574
10575 /// Removes any folds whose ranges intersect any of the given ranges.
10576 pub fn unfold_ranges<T: ToOffset + Clone>(
10577 &mut self,
10578 ranges: &[Range<T>],
10579 inclusive: bool,
10580 auto_scroll: bool,
10581 cx: &mut ViewContext<Self>,
10582 ) {
10583 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10584 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10585 });
10586 }
10587
10588 /// Removes any folds with the given ranges.
10589 pub fn remove_folds_with_type<T: ToOffset + Clone>(
10590 &mut self,
10591 ranges: &[Range<T>],
10592 type_id: TypeId,
10593 auto_scroll: bool,
10594 cx: &mut ViewContext<Self>,
10595 ) {
10596 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10597 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
10598 });
10599 }
10600
10601 fn remove_folds_with<T: ToOffset + Clone>(
10602 &mut self,
10603 ranges: &[Range<T>],
10604 auto_scroll: bool,
10605 cx: &mut ViewContext<Self>,
10606 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
10607 ) {
10608 if ranges.is_empty() {
10609 return;
10610 }
10611
10612 let mut buffers_affected = HashSet::default();
10613 let multi_buffer = self.buffer().read(cx);
10614 for range in ranges {
10615 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10616 buffers_affected.insert(buffer.read(cx).remote_id());
10617 };
10618 }
10619
10620 self.display_map.update(cx, update);
10621
10622 if auto_scroll {
10623 self.request_autoscroll(Autoscroll::fit(), cx);
10624 }
10625
10626 for buffer_id in buffers_affected {
10627 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10628 }
10629
10630 cx.notify();
10631 self.scrollbar_marker_state.dirty = true;
10632 self.active_indent_guides_state.dirty = true;
10633 }
10634
10635 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10636 self.display_map.read(cx).fold_placeholder.clone()
10637 }
10638
10639 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10640 if hovered != self.gutter_hovered {
10641 self.gutter_hovered = hovered;
10642 cx.notify();
10643 }
10644 }
10645
10646 pub fn insert_blocks(
10647 &mut self,
10648 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10649 autoscroll: Option<Autoscroll>,
10650 cx: &mut ViewContext<Self>,
10651 ) -> Vec<CustomBlockId> {
10652 let blocks = self
10653 .display_map
10654 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10655 if let Some(autoscroll) = autoscroll {
10656 self.request_autoscroll(autoscroll, cx);
10657 }
10658 cx.notify();
10659 blocks
10660 }
10661
10662 pub fn resize_blocks(
10663 &mut self,
10664 heights: HashMap<CustomBlockId, u32>,
10665 autoscroll: Option<Autoscroll>,
10666 cx: &mut ViewContext<Self>,
10667 ) {
10668 self.display_map
10669 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
10670 if let Some(autoscroll) = autoscroll {
10671 self.request_autoscroll(autoscroll, cx);
10672 }
10673 cx.notify();
10674 }
10675
10676 pub fn replace_blocks(
10677 &mut self,
10678 renderers: HashMap<CustomBlockId, RenderBlock>,
10679 autoscroll: Option<Autoscroll>,
10680 cx: &mut ViewContext<Self>,
10681 ) {
10682 self.display_map
10683 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
10684 if let Some(autoscroll) = autoscroll {
10685 self.request_autoscroll(autoscroll, cx);
10686 }
10687 cx.notify();
10688 }
10689
10690 pub fn remove_blocks(
10691 &mut self,
10692 block_ids: HashSet<CustomBlockId>,
10693 autoscroll: Option<Autoscroll>,
10694 cx: &mut ViewContext<Self>,
10695 ) {
10696 self.display_map.update(cx, |display_map, cx| {
10697 display_map.remove_blocks(block_ids, cx)
10698 });
10699 if let Some(autoscroll) = autoscroll {
10700 self.request_autoscroll(autoscroll, cx);
10701 }
10702 cx.notify();
10703 }
10704
10705 pub fn row_for_block(
10706 &self,
10707 block_id: CustomBlockId,
10708 cx: &mut ViewContext<Self>,
10709 ) -> Option<DisplayRow> {
10710 self.display_map
10711 .update(cx, |map, cx| map.row_for_block(block_id, cx))
10712 }
10713
10714 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
10715 self.focused_block = Some(focused_block);
10716 }
10717
10718 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
10719 self.focused_block.take()
10720 }
10721
10722 pub fn insert_creases(
10723 &mut self,
10724 creases: impl IntoIterator<Item = Crease<Anchor>>,
10725 cx: &mut ViewContext<Self>,
10726 ) -> Vec<CreaseId> {
10727 self.display_map
10728 .update(cx, |map, cx| map.insert_creases(creases, cx))
10729 }
10730
10731 pub fn remove_creases(
10732 &mut self,
10733 ids: impl IntoIterator<Item = CreaseId>,
10734 cx: &mut ViewContext<Self>,
10735 ) {
10736 self.display_map
10737 .update(cx, |map, cx| map.remove_creases(ids, cx));
10738 }
10739
10740 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
10741 self.display_map
10742 .update(cx, |map, cx| map.snapshot(cx))
10743 .longest_row()
10744 }
10745
10746 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
10747 self.display_map
10748 .update(cx, |map, cx| map.snapshot(cx))
10749 .max_point()
10750 }
10751
10752 pub fn text(&self, cx: &AppContext) -> String {
10753 self.buffer.read(cx).read(cx).text()
10754 }
10755
10756 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
10757 let text = self.text(cx);
10758 let text = text.trim();
10759
10760 if text.is_empty() {
10761 return None;
10762 }
10763
10764 Some(text.to_string())
10765 }
10766
10767 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
10768 self.transact(cx, |this, cx| {
10769 this.buffer
10770 .read(cx)
10771 .as_singleton()
10772 .expect("you can only call set_text on editors for singleton buffers")
10773 .update(cx, |buffer, cx| buffer.set_text(text, cx));
10774 });
10775 }
10776
10777 pub fn display_text(&self, cx: &mut AppContext) -> String {
10778 self.display_map
10779 .update(cx, |map, cx| map.snapshot(cx))
10780 .text()
10781 }
10782
10783 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
10784 let mut wrap_guides = smallvec::smallvec![];
10785
10786 if self.show_wrap_guides == Some(false) {
10787 return wrap_guides;
10788 }
10789
10790 let settings = self.buffer.read(cx).settings_at(0, cx);
10791 if settings.show_wrap_guides {
10792 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
10793 wrap_guides.push((soft_wrap as usize, true));
10794 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
10795 wrap_guides.push((soft_wrap as usize, true));
10796 }
10797 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
10798 }
10799
10800 wrap_guides
10801 }
10802
10803 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
10804 let settings = self.buffer.read(cx).settings_at(0, cx);
10805 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
10806 match mode {
10807 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
10808 SoftWrap::None
10809 }
10810 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
10811 language_settings::SoftWrap::PreferredLineLength => {
10812 SoftWrap::Column(settings.preferred_line_length)
10813 }
10814 language_settings::SoftWrap::Bounded => {
10815 SoftWrap::Bounded(settings.preferred_line_length)
10816 }
10817 }
10818 }
10819
10820 pub fn set_soft_wrap_mode(
10821 &mut self,
10822 mode: language_settings::SoftWrap,
10823 cx: &mut ViewContext<Self>,
10824 ) {
10825 self.soft_wrap_mode_override = Some(mode);
10826 cx.notify();
10827 }
10828
10829 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
10830 self.text_style_refinement = Some(style);
10831 }
10832
10833 /// called by the Element so we know what style we were most recently rendered with.
10834 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
10835 let rem_size = cx.rem_size();
10836 self.display_map.update(cx, |map, cx| {
10837 map.set_font(
10838 style.text.font(),
10839 style.text.font_size.to_pixels(rem_size),
10840 cx,
10841 )
10842 });
10843 self.style = Some(style);
10844 }
10845
10846 pub fn style(&self) -> Option<&EditorStyle> {
10847 self.style.as_ref()
10848 }
10849
10850 // Called by the element. This method is not designed to be called outside of the editor
10851 // element's layout code because it does not notify when rewrapping is computed synchronously.
10852 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
10853 self.display_map
10854 .update(cx, |map, cx| map.set_wrap_width(width, cx))
10855 }
10856
10857 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
10858 if self.soft_wrap_mode_override.is_some() {
10859 self.soft_wrap_mode_override.take();
10860 } else {
10861 let soft_wrap = match self.soft_wrap_mode(cx) {
10862 SoftWrap::GitDiff => return,
10863 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
10864 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
10865 language_settings::SoftWrap::None
10866 }
10867 };
10868 self.soft_wrap_mode_override = Some(soft_wrap);
10869 }
10870 cx.notify();
10871 }
10872
10873 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
10874 let Some(workspace) = self.workspace() else {
10875 return;
10876 };
10877 let fs = workspace.read(cx).app_state().fs.clone();
10878 let current_show = TabBarSettings::get_global(cx).show;
10879 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
10880 setting.show = Some(!current_show);
10881 });
10882 }
10883
10884 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
10885 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
10886 self.buffer
10887 .read(cx)
10888 .settings_at(0, cx)
10889 .indent_guides
10890 .enabled
10891 });
10892 self.show_indent_guides = Some(!currently_enabled);
10893 cx.notify();
10894 }
10895
10896 fn should_show_indent_guides(&self) -> Option<bool> {
10897 self.show_indent_guides
10898 }
10899
10900 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
10901 let mut editor_settings = EditorSettings::get_global(cx).clone();
10902 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
10903 EditorSettings::override_global(editor_settings, cx);
10904 }
10905
10906 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
10907 self.use_relative_line_numbers
10908 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
10909 }
10910
10911 pub fn toggle_relative_line_numbers(
10912 &mut self,
10913 _: &ToggleRelativeLineNumbers,
10914 cx: &mut ViewContext<Self>,
10915 ) {
10916 let is_relative = self.should_use_relative_line_numbers(cx);
10917 self.set_relative_line_number(Some(!is_relative), cx)
10918 }
10919
10920 pub fn set_relative_line_number(
10921 &mut self,
10922 is_relative: Option<bool>,
10923 cx: &mut ViewContext<Self>,
10924 ) {
10925 self.use_relative_line_numbers = is_relative;
10926 cx.notify();
10927 }
10928
10929 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
10930 self.show_gutter = show_gutter;
10931 cx.notify();
10932 }
10933
10934 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
10935 self.show_line_numbers = Some(show_line_numbers);
10936 cx.notify();
10937 }
10938
10939 pub fn set_show_git_diff_gutter(
10940 &mut self,
10941 show_git_diff_gutter: bool,
10942 cx: &mut ViewContext<Self>,
10943 ) {
10944 self.show_git_diff_gutter = Some(show_git_diff_gutter);
10945 cx.notify();
10946 }
10947
10948 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
10949 self.show_code_actions = Some(show_code_actions);
10950 cx.notify();
10951 }
10952
10953 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
10954 self.show_runnables = Some(show_runnables);
10955 cx.notify();
10956 }
10957
10958 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
10959 if self.display_map.read(cx).masked != masked {
10960 self.display_map.update(cx, |map, _| map.masked = masked);
10961 }
10962 cx.notify()
10963 }
10964
10965 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
10966 self.show_wrap_guides = Some(show_wrap_guides);
10967 cx.notify();
10968 }
10969
10970 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
10971 self.show_indent_guides = Some(show_indent_guides);
10972 cx.notify();
10973 }
10974
10975 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
10976 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10977 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10978 if let Some(dir) = file.abs_path(cx).parent() {
10979 return Some(dir.to_owned());
10980 }
10981 }
10982
10983 if let Some(project_path) = buffer.read(cx).project_path(cx) {
10984 return Some(project_path.path.to_path_buf());
10985 }
10986 }
10987
10988 None
10989 }
10990
10991 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
10992 self.active_excerpt(cx)?
10993 .1
10994 .read(cx)
10995 .file()
10996 .and_then(|f| f.as_local())
10997 }
10998
10999 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11000 if let Some(target) = self.target_file(cx) {
11001 cx.reveal_path(&target.abs_path(cx));
11002 }
11003 }
11004
11005 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11006 if let Some(file) = self.target_file(cx) {
11007 if let Some(path) = file.abs_path(cx).to_str() {
11008 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11009 }
11010 }
11011 }
11012
11013 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11014 if let Some(file) = self.target_file(cx) {
11015 if let Some(path) = file.path().to_str() {
11016 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11017 }
11018 }
11019 }
11020
11021 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11022 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11023
11024 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11025 self.start_git_blame(true, cx);
11026 }
11027
11028 cx.notify();
11029 }
11030
11031 pub fn toggle_git_blame_inline(
11032 &mut self,
11033 _: &ToggleGitBlameInline,
11034 cx: &mut ViewContext<Self>,
11035 ) {
11036 self.toggle_git_blame_inline_internal(true, cx);
11037 cx.notify();
11038 }
11039
11040 pub fn git_blame_inline_enabled(&self) -> bool {
11041 self.git_blame_inline_enabled
11042 }
11043
11044 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11045 self.show_selection_menu = self
11046 .show_selection_menu
11047 .map(|show_selections_menu| !show_selections_menu)
11048 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11049
11050 cx.notify();
11051 }
11052
11053 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11054 self.show_selection_menu
11055 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11056 }
11057
11058 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11059 if let Some(project) = self.project.as_ref() {
11060 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11061 return;
11062 };
11063
11064 if buffer.read(cx).file().is_none() {
11065 return;
11066 }
11067
11068 let focused = self.focus_handle(cx).contains_focused(cx);
11069
11070 let project = project.clone();
11071 let blame =
11072 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11073 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11074 self.blame = Some(blame);
11075 }
11076 }
11077
11078 fn toggle_git_blame_inline_internal(
11079 &mut self,
11080 user_triggered: bool,
11081 cx: &mut ViewContext<Self>,
11082 ) {
11083 if self.git_blame_inline_enabled {
11084 self.git_blame_inline_enabled = false;
11085 self.show_git_blame_inline = false;
11086 self.show_git_blame_inline_delay_task.take();
11087 } else {
11088 self.git_blame_inline_enabled = true;
11089 self.start_git_blame_inline(user_triggered, cx);
11090 }
11091
11092 cx.notify();
11093 }
11094
11095 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11096 self.start_git_blame(user_triggered, cx);
11097
11098 if ProjectSettings::get_global(cx)
11099 .git
11100 .inline_blame_delay()
11101 .is_some()
11102 {
11103 self.start_inline_blame_timer(cx);
11104 } else {
11105 self.show_git_blame_inline = true
11106 }
11107 }
11108
11109 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11110 self.blame.as_ref()
11111 }
11112
11113 pub fn show_git_blame_gutter(&self) -> bool {
11114 self.show_git_blame_gutter
11115 }
11116
11117 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11118 self.show_git_blame_gutter && self.has_blame_entries(cx)
11119 }
11120
11121 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11122 self.show_git_blame_inline
11123 && self.focus_handle.is_focused(cx)
11124 && !self.newest_selection_head_on_empty_line(cx)
11125 && self.has_blame_entries(cx)
11126 }
11127
11128 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11129 self.blame()
11130 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11131 }
11132
11133 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11134 let cursor_anchor = self.selections.newest_anchor().head();
11135
11136 let snapshot = self.buffer.read(cx).snapshot(cx);
11137 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11138
11139 snapshot.line_len(buffer_row) == 0
11140 }
11141
11142 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11143 let buffer_and_selection = maybe!({
11144 let selection = self.selections.newest::<Point>(cx);
11145 let selection_range = selection.range();
11146
11147 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11148 (buffer, selection_range.start.row..selection_range.end.row)
11149 } else {
11150 let buffer_ranges = self
11151 .buffer()
11152 .read(cx)
11153 .range_to_buffer_ranges(selection_range, cx);
11154
11155 let (buffer, range, _) = if selection.reversed {
11156 buffer_ranges.first()
11157 } else {
11158 buffer_ranges.last()
11159 }?;
11160
11161 let snapshot = buffer.read(cx).snapshot();
11162 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11163 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11164 (buffer.clone(), selection)
11165 };
11166
11167 Some((buffer, selection))
11168 });
11169
11170 let Some((buffer, selection)) = buffer_and_selection else {
11171 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11172 };
11173
11174 let Some(project) = self.project.as_ref() else {
11175 return Task::ready(Err(anyhow!("editor does not have project")));
11176 };
11177
11178 project.update(cx, |project, cx| {
11179 project.get_permalink_to_line(&buffer, selection, cx)
11180 })
11181 }
11182
11183 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11184 let permalink_task = self.get_permalink_to_line(cx);
11185 let workspace = self.workspace();
11186
11187 cx.spawn(|_, mut cx| async move {
11188 match permalink_task.await {
11189 Ok(permalink) => {
11190 cx.update(|cx| {
11191 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11192 })
11193 .ok();
11194 }
11195 Err(err) => {
11196 let message = format!("Failed to copy permalink: {err}");
11197
11198 Err::<(), anyhow::Error>(err).log_err();
11199
11200 if let Some(workspace) = workspace {
11201 workspace
11202 .update(&mut cx, |workspace, cx| {
11203 struct CopyPermalinkToLine;
11204
11205 workspace.show_toast(
11206 Toast::new(
11207 NotificationId::unique::<CopyPermalinkToLine>(),
11208 message,
11209 ),
11210 cx,
11211 )
11212 })
11213 .ok();
11214 }
11215 }
11216 }
11217 })
11218 .detach();
11219 }
11220
11221 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11222 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11223 if let Some(file) = self.target_file(cx) {
11224 if let Some(path) = file.path().to_str() {
11225 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11226 }
11227 }
11228 }
11229
11230 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11231 let permalink_task = self.get_permalink_to_line(cx);
11232 let workspace = self.workspace();
11233
11234 cx.spawn(|_, mut cx| async move {
11235 match permalink_task.await {
11236 Ok(permalink) => {
11237 cx.update(|cx| {
11238 cx.open_url(permalink.as_ref());
11239 })
11240 .ok();
11241 }
11242 Err(err) => {
11243 let message = format!("Failed to open permalink: {err}");
11244
11245 Err::<(), anyhow::Error>(err).log_err();
11246
11247 if let Some(workspace) = workspace {
11248 workspace
11249 .update(&mut cx, |workspace, cx| {
11250 struct OpenPermalinkToLine;
11251
11252 workspace.show_toast(
11253 Toast::new(
11254 NotificationId::unique::<OpenPermalinkToLine>(),
11255 message,
11256 ),
11257 cx,
11258 )
11259 })
11260 .ok();
11261 }
11262 }
11263 }
11264 })
11265 .detach();
11266 }
11267
11268 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11269 self.insert_uuid(UuidVersion::V4, cx);
11270 }
11271
11272 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11273 self.insert_uuid(UuidVersion::V7, cx);
11274 }
11275
11276 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11277 self.transact(cx, |this, cx| {
11278 let edits = this
11279 .selections
11280 .all::<Point>(cx)
11281 .into_iter()
11282 .map(|selection| {
11283 let uuid = match version {
11284 UuidVersion::V4 => uuid::Uuid::new_v4(),
11285 UuidVersion::V7 => uuid::Uuid::now_v7(),
11286 };
11287
11288 (selection.range(), uuid.to_string())
11289 });
11290 this.edit(edits, cx);
11291 this.refresh_inline_completion(true, false, cx);
11292 });
11293 }
11294
11295 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11296 /// last highlight added will be used.
11297 ///
11298 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11299 pub fn highlight_rows<T: 'static>(
11300 &mut self,
11301 range: Range<Anchor>,
11302 color: Hsla,
11303 should_autoscroll: bool,
11304 cx: &mut ViewContext<Self>,
11305 ) {
11306 let snapshot = self.buffer().read(cx).snapshot(cx);
11307 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11308 let ix = row_highlights.binary_search_by(|highlight| {
11309 Ordering::Equal
11310 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11311 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11312 });
11313
11314 if let Err(mut ix) = ix {
11315 let index = post_inc(&mut self.highlight_order);
11316
11317 // If this range intersects with the preceding highlight, then merge it with
11318 // the preceding highlight. Otherwise insert a new highlight.
11319 let mut merged = false;
11320 if ix > 0 {
11321 let prev_highlight = &mut row_highlights[ix - 1];
11322 if prev_highlight
11323 .range
11324 .end
11325 .cmp(&range.start, &snapshot)
11326 .is_ge()
11327 {
11328 ix -= 1;
11329 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11330 prev_highlight.range.end = range.end;
11331 }
11332 merged = true;
11333 prev_highlight.index = index;
11334 prev_highlight.color = color;
11335 prev_highlight.should_autoscroll = should_autoscroll;
11336 }
11337 }
11338
11339 if !merged {
11340 row_highlights.insert(
11341 ix,
11342 RowHighlight {
11343 range: range.clone(),
11344 index,
11345 color,
11346 should_autoscroll,
11347 },
11348 );
11349 }
11350
11351 // If any of the following highlights intersect with this one, merge them.
11352 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11353 let highlight = &row_highlights[ix];
11354 if next_highlight
11355 .range
11356 .start
11357 .cmp(&highlight.range.end, &snapshot)
11358 .is_le()
11359 {
11360 if next_highlight
11361 .range
11362 .end
11363 .cmp(&highlight.range.end, &snapshot)
11364 .is_gt()
11365 {
11366 row_highlights[ix].range.end = next_highlight.range.end;
11367 }
11368 row_highlights.remove(ix + 1);
11369 } else {
11370 break;
11371 }
11372 }
11373 }
11374 }
11375
11376 /// Remove any highlighted row ranges of the given type that intersect the
11377 /// given ranges.
11378 pub fn remove_highlighted_rows<T: 'static>(
11379 &mut self,
11380 ranges_to_remove: Vec<Range<Anchor>>,
11381 cx: &mut ViewContext<Self>,
11382 ) {
11383 let snapshot = self.buffer().read(cx).snapshot(cx);
11384 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11385 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11386 row_highlights.retain(|highlight| {
11387 while let Some(range_to_remove) = ranges_to_remove.peek() {
11388 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11389 Ordering::Less | Ordering::Equal => {
11390 ranges_to_remove.next();
11391 }
11392 Ordering::Greater => {
11393 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11394 Ordering::Less | Ordering::Equal => {
11395 return false;
11396 }
11397 Ordering::Greater => break,
11398 }
11399 }
11400 }
11401 }
11402
11403 true
11404 })
11405 }
11406
11407 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11408 pub fn clear_row_highlights<T: 'static>(&mut self) {
11409 self.highlighted_rows.remove(&TypeId::of::<T>());
11410 }
11411
11412 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11413 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11414 self.highlighted_rows
11415 .get(&TypeId::of::<T>())
11416 .map_or(&[] as &[_], |vec| vec.as_slice())
11417 .iter()
11418 .map(|highlight| (highlight.range.clone(), highlight.color))
11419 }
11420
11421 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11422 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11423 /// Allows to ignore certain kinds of highlights.
11424 pub fn highlighted_display_rows(
11425 &mut self,
11426 cx: &mut WindowContext,
11427 ) -> BTreeMap<DisplayRow, Hsla> {
11428 let snapshot = self.snapshot(cx);
11429 let mut used_highlight_orders = HashMap::default();
11430 self.highlighted_rows
11431 .iter()
11432 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11433 .fold(
11434 BTreeMap::<DisplayRow, Hsla>::new(),
11435 |mut unique_rows, highlight| {
11436 let start = highlight.range.start.to_display_point(&snapshot);
11437 let end = highlight.range.end.to_display_point(&snapshot);
11438 let start_row = start.row().0;
11439 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11440 && end.column() == 0
11441 {
11442 end.row().0.saturating_sub(1)
11443 } else {
11444 end.row().0
11445 };
11446 for row in start_row..=end_row {
11447 let used_index =
11448 used_highlight_orders.entry(row).or_insert(highlight.index);
11449 if highlight.index >= *used_index {
11450 *used_index = highlight.index;
11451 unique_rows.insert(DisplayRow(row), highlight.color);
11452 }
11453 }
11454 unique_rows
11455 },
11456 )
11457 }
11458
11459 pub fn highlighted_display_row_for_autoscroll(
11460 &self,
11461 snapshot: &DisplaySnapshot,
11462 ) -> Option<DisplayRow> {
11463 self.highlighted_rows
11464 .values()
11465 .flat_map(|highlighted_rows| highlighted_rows.iter())
11466 .filter_map(|highlight| {
11467 if highlight.should_autoscroll {
11468 Some(highlight.range.start.to_display_point(snapshot).row())
11469 } else {
11470 None
11471 }
11472 })
11473 .min()
11474 }
11475
11476 pub fn set_search_within_ranges(
11477 &mut self,
11478 ranges: &[Range<Anchor>],
11479 cx: &mut ViewContext<Self>,
11480 ) {
11481 self.highlight_background::<SearchWithinRange>(
11482 ranges,
11483 |colors| colors.editor_document_highlight_read_background,
11484 cx,
11485 )
11486 }
11487
11488 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11489 self.breadcrumb_header = Some(new_header);
11490 }
11491
11492 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11493 self.clear_background_highlights::<SearchWithinRange>(cx);
11494 }
11495
11496 pub fn highlight_background<T: 'static>(
11497 &mut self,
11498 ranges: &[Range<Anchor>],
11499 color_fetcher: fn(&ThemeColors) -> Hsla,
11500 cx: &mut ViewContext<Self>,
11501 ) {
11502 self.background_highlights
11503 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11504 self.scrollbar_marker_state.dirty = true;
11505 cx.notify();
11506 }
11507
11508 pub fn clear_background_highlights<T: 'static>(
11509 &mut self,
11510 cx: &mut ViewContext<Self>,
11511 ) -> Option<BackgroundHighlight> {
11512 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11513 if !text_highlights.1.is_empty() {
11514 self.scrollbar_marker_state.dirty = true;
11515 cx.notify();
11516 }
11517 Some(text_highlights)
11518 }
11519
11520 pub fn highlight_gutter<T: 'static>(
11521 &mut self,
11522 ranges: &[Range<Anchor>],
11523 color_fetcher: fn(&AppContext) -> Hsla,
11524 cx: &mut ViewContext<Self>,
11525 ) {
11526 self.gutter_highlights
11527 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11528 cx.notify();
11529 }
11530
11531 pub fn clear_gutter_highlights<T: 'static>(
11532 &mut self,
11533 cx: &mut ViewContext<Self>,
11534 ) -> Option<GutterHighlight> {
11535 cx.notify();
11536 self.gutter_highlights.remove(&TypeId::of::<T>())
11537 }
11538
11539 #[cfg(feature = "test-support")]
11540 pub fn all_text_background_highlights(
11541 &mut self,
11542 cx: &mut ViewContext<Self>,
11543 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11544 let snapshot = self.snapshot(cx);
11545 let buffer = &snapshot.buffer_snapshot;
11546 let start = buffer.anchor_before(0);
11547 let end = buffer.anchor_after(buffer.len());
11548 let theme = cx.theme().colors();
11549 self.background_highlights_in_range(start..end, &snapshot, theme)
11550 }
11551
11552 #[cfg(feature = "test-support")]
11553 pub fn search_background_highlights(
11554 &mut self,
11555 cx: &mut ViewContext<Self>,
11556 ) -> Vec<Range<Point>> {
11557 let snapshot = self.buffer().read(cx).snapshot(cx);
11558
11559 let highlights = self
11560 .background_highlights
11561 .get(&TypeId::of::<items::BufferSearchHighlights>());
11562
11563 if let Some((_color, ranges)) = highlights {
11564 ranges
11565 .iter()
11566 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11567 .collect_vec()
11568 } else {
11569 vec![]
11570 }
11571 }
11572
11573 fn document_highlights_for_position<'a>(
11574 &'a self,
11575 position: Anchor,
11576 buffer: &'a MultiBufferSnapshot,
11577 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11578 let read_highlights = self
11579 .background_highlights
11580 .get(&TypeId::of::<DocumentHighlightRead>())
11581 .map(|h| &h.1);
11582 let write_highlights = self
11583 .background_highlights
11584 .get(&TypeId::of::<DocumentHighlightWrite>())
11585 .map(|h| &h.1);
11586 let left_position = position.bias_left(buffer);
11587 let right_position = position.bias_right(buffer);
11588 read_highlights
11589 .into_iter()
11590 .chain(write_highlights)
11591 .flat_map(move |ranges| {
11592 let start_ix = match ranges.binary_search_by(|probe| {
11593 let cmp = probe.end.cmp(&left_position, buffer);
11594 if cmp.is_ge() {
11595 Ordering::Greater
11596 } else {
11597 Ordering::Less
11598 }
11599 }) {
11600 Ok(i) | Err(i) => i,
11601 };
11602
11603 ranges[start_ix..]
11604 .iter()
11605 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11606 })
11607 }
11608
11609 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11610 self.background_highlights
11611 .get(&TypeId::of::<T>())
11612 .map_or(false, |(_, highlights)| !highlights.is_empty())
11613 }
11614
11615 pub fn background_highlights_in_range(
11616 &self,
11617 search_range: Range<Anchor>,
11618 display_snapshot: &DisplaySnapshot,
11619 theme: &ThemeColors,
11620 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11621 let mut results = Vec::new();
11622 for (color_fetcher, ranges) in self.background_highlights.values() {
11623 let color = color_fetcher(theme);
11624 let start_ix = match ranges.binary_search_by(|probe| {
11625 let cmp = probe
11626 .end
11627 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11628 if cmp.is_gt() {
11629 Ordering::Greater
11630 } else {
11631 Ordering::Less
11632 }
11633 }) {
11634 Ok(i) | Err(i) => i,
11635 };
11636 for range in &ranges[start_ix..] {
11637 if range
11638 .start
11639 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11640 .is_ge()
11641 {
11642 break;
11643 }
11644
11645 let start = range.start.to_display_point(display_snapshot);
11646 let end = range.end.to_display_point(display_snapshot);
11647 results.push((start..end, color))
11648 }
11649 }
11650 results
11651 }
11652
11653 pub fn background_highlight_row_ranges<T: 'static>(
11654 &self,
11655 search_range: Range<Anchor>,
11656 display_snapshot: &DisplaySnapshot,
11657 count: usize,
11658 ) -> Vec<RangeInclusive<DisplayPoint>> {
11659 let mut results = Vec::new();
11660 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11661 return vec![];
11662 };
11663
11664 let start_ix = match ranges.binary_search_by(|probe| {
11665 let cmp = probe
11666 .end
11667 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11668 if cmp.is_gt() {
11669 Ordering::Greater
11670 } else {
11671 Ordering::Less
11672 }
11673 }) {
11674 Ok(i) | Err(i) => i,
11675 };
11676 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11677 if let (Some(start_display), Some(end_display)) = (start, end) {
11678 results.push(
11679 start_display.to_display_point(display_snapshot)
11680 ..=end_display.to_display_point(display_snapshot),
11681 );
11682 }
11683 };
11684 let mut start_row: Option<Point> = None;
11685 let mut end_row: Option<Point> = None;
11686 if ranges.len() > count {
11687 return Vec::new();
11688 }
11689 for range in &ranges[start_ix..] {
11690 if range
11691 .start
11692 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11693 .is_ge()
11694 {
11695 break;
11696 }
11697 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
11698 if let Some(current_row) = &end_row {
11699 if end.row == current_row.row {
11700 continue;
11701 }
11702 }
11703 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
11704 if start_row.is_none() {
11705 assert_eq!(end_row, None);
11706 start_row = Some(start);
11707 end_row = Some(end);
11708 continue;
11709 }
11710 if let Some(current_end) = end_row.as_mut() {
11711 if start.row > current_end.row + 1 {
11712 push_region(start_row, end_row);
11713 start_row = Some(start);
11714 end_row = Some(end);
11715 } else {
11716 // Merge two hunks.
11717 *current_end = end;
11718 }
11719 } else {
11720 unreachable!();
11721 }
11722 }
11723 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
11724 push_region(start_row, end_row);
11725 results
11726 }
11727
11728 pub fn gutter_highlights_in_range(
11729 &self,
11730 search_range: Range<Anchor>,
11731 display_snapshot: &DisplaySnapshot,
11732 cx: &AppContext,
11733 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11734 let mut results = Vec::new();
11735 for (color_fetcher, ranges) in self.gutter_highlights.values() {
11736 let color = color_fetcher(cx);
11737 let start_ix = match ranges.binary_search_by(|probe| {
11738 let cmp = probe
11739 .end
11740 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11741 if cmp.is_gt() {
11742 Ordering::Greater
11743 } else {
11744 Ordering::Less
11745 }
11746 }) {
11747 Ok(i) | Err(i) => i,
11748 };
11749 for range in &ranges[start_ix..] {
11750 if range
11751 .start
11752 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11753 .is_ge()
11754 {
11755 break;
11756 }
11757
11758 let start = range.start.to_display_point(display_snapshot);
11759 let end = range.end.to_display_point(display_snapshot);
11760 results.push((start..end, color))
11761 }
11762 }
11763 results
11764 }
11765
11766 /// Get the text ranges corresponding to the redaction query
11767 pub fn redacted_ranges(
11768 &self,
11769 search_range: Range<Anchor>,
11770 display_snapshot: &DisplaySnapshot,
11771 cx: &WindowContext,
11772 ) -> Vec<Range<DisplayPoint>> {
11773 display_snapshot
11774 .buffer_snapshot
11775 .redacted_ranges(search_range, |file| {
11776 if let Some(file) = file {
11777 file.is_private()
11778 && EditorSettings::get(
11779 Some(SettingsLocation {
11780 worktree_id: file.worktree_id(cx),
11781 path: file.path().as_ref(),
11782 }),
11783 cx,
11784 )
11785 .redact_private_values
11786 } else {
11787 false
11788 }
11789 })
11790 .map(|range| {
11791 range.start.to_display_point(display_snapshot)
11792 ..range.end.to_display_point(display_snapshot)
11793 })
11794 .collect()
11795 }
11796
11797 pub fn highlight_text<T: 'static>(
11798 &mut self,
11799 ranges: Vec<Range<Anchor>>,
11800 style: HighlightStyle,
11801 cx: &mut ViewContext<Self>,
11802 ) {
11803 self.display_map.update(cx, |map, _| {
11804 map.highlight_text(TypeId::of::<T>(), ranges, style)
11805 });
11806 cx.notify();
11807 }
11808
11809 pub(crate) fn highlight_inlays<T: 'static>(
11810 &mut self,
11811 highlights: Vec<InlayHighlight>,
11812 style: HighlightStyle,
11813 cx: &mut ViewContext<Self>,
11814 ) {
11815 self.display_map.update(cx, |map, _| {
11816 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
11817 });
11818 cx.notify();
11819 }
11820
11821 pub fn text_highlights<'a, T: 'static>(
11822 &'a self,
11823 cx: &'a AppContext,
11824 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
11825 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
11826 }
11827
11828 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
11829 let cleared = self
11830 .display_map
11831 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
11832 if cleared {
11833 cx.notify();
11834 }
11835 }
11836
11837 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
11838 (self.read_only(cx) || self.blink_manager.read(cx).visible())
11839 && self.focus_handle.is_focused(cx)
11840 }
11841
11842 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
11843 self.show_cursor_when_unfocused = is_enabled;
11844 cx.notify();
11845 }
11846
11847 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
11848 cx.notify();
11849 }
11850
11851 fn on_buffer_event(
11852 &mut self,
11853 multibuffer: Model<MultiBuffer>,
11854 event: &multi_buffer::Event,
11855 cx: &mut ViewContext<Self>,
11856 ) {
11857 match event {
11858 multi_buffer::Event::Edited {
11859 singleton_buffer_edited,
11860 } => {
11861 self.scrollbar_marker_state.dirty = true;
11862 self.active_indent_guides_state.dirty = true;
11863 self.refresh_active_diagnostics(cx);
11864 self.refresh_code_actions(cx);
11865 if self.has_active_inline_completion() {
11866 self.update_visible_inline_completion(cx);
11867 }
11868 cx.emit(EditorEvent::BufferEdited);
11869 cx.emit(SearchEvent::MatchesInvalidated);
11870 if *singleton_buffer_edited {
11871 if let Some(project) = &self.project {
11872 let project = project.read(cx);
11873 #[allow(clippy::mutable_key_type)]
11874 let languages_affected = multibuffer
11875 .read(cx)
11876 .all_buffers()
11877 .into_iter()
11878 .filter_map(|buffer| {
11879 let buffer = buffer.read(cx);
11880 let language = buffer.language()?;
11881 if project.is_local()
11882 && project
11883 .language_servers_for_local_buffer(buffer, cx)
11884 .count()
11885 == 0
11886 {
11887 None
11888 } else {
11889 Some(language)
11890 }
11891 })
11892 .cloned()
11893 .collect::<HashSet<_>>();
11894 if !languages_affected.is_empty() {
11895 self.refresh_inlay_hints(
11896 InlayHintRefreshReason::BufferEdited(languages_affected),
11897 cx,
11898 );
11899 }
11900 }
11901 }
11902
11903 let Some(project) = &self.project else { return };
11904 let (telemetry, is_via_ssh) = {
11905 let project = project.read(cx);
11906 let telemetry = project.client().telemetry().clone();
11907 let is_via_ssh = project.is_via_ssh();
11908 (telemetry, is_via_ssh)
11909 };
11910 refresh_linked_ranges(self, cx);
11911 telemetry.log_edit_event("editor", is_via_ssh);
11912 }
11913 multi_buffer::Event::ExcerptsAdded {
11914 buffer,
11915 predecessor,
11916 excerpts,
11917 } => {
11918 self.tasks_update_task = Some(self.refresh_runnables(cx));
11919 let buffer_id = buffer.read(cx).remote_id();
11920 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
11921 if let Some(project) = &self.project {
11922 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
11923 }
11924 }
11925 cx.emit(EditorEvent::ExcerptsAdded {
11926 buffer: buffer.clone(),
11927 predecessor: *predecessor,
11928 excerpts: excerpts.clone(),
11929 });
11930 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
11931 }
11932 multi_buffer::Event::ExcerptsRemoved { ids } => {
11933 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
11934 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
11935 }
11936 multi_buffer::Event::ExcerptsEdited { ids } => {
11937 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
11938 }
11939 multi_buffer::Event::ExcerptsExpanded { ids } => {
11940 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
11941 }
11942 multi_buffer::Event::Reparsed(buffer_id) => {
11943 self.tasks_update_task = Some(self.refresh_runnables(cx));
11944
11945 cx.emit(EditorEvent::Reparsed(*buffer_id));
11946 }
11947 multi_buffer::Event::LanguageChanged(buffer_id) => {
11948 linked_editing_ranges::refresh_linked_ranges(self, cx);
11949 cx.emit(EditorEvent::Reparsed(*buffer_id));
11950 cx.notify();
11951 }
11952 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
11953 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
11954 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
11955 cx.emit(EditorEvent::TitleChanged)
11956 }
11957 // multi_buffer::Event::DiffBaseChanged => {
11958 // self.scrollbar_marker_state.dirty = true;
11959 // cx.emit(EditorEvent::DiffBaseChanged);
11960 // cx.notify();
11961 // }
11962 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
11963 multi_buffer::Event::DiagnosticsUpdated => {
11964 self.refresh_active_diagnostics(cx);
11965 self.scrollbar_marker_state.dirty = true;
11966 cx.notify();
11967 }
11968 _ => {}
11969 };
11970 }
11971
11972 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
11973 cx.notify();
11974 }
11975
11976 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
11977 self.tasks_update_task = Some(self.refresh_runnables(cx));
11978 self.refresh_inline_completion(true, false, cx);
11979 self.refresh_inlay_hints(
11980 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
11981 self.selections.newest_anchor().head(),
11982 &self.buffer.read(cx).snapshot(cx),
11983 cx,
11984 )),
11985 cx,
11986 );
11987
11988 let old_cursor_shape = self.cursor_shape;
11989
11990 {
11991 let editor_settings = EditorSettings::get_global(cx);
11992 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
11993 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
11994 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
11995 }
11996
11997 if old_cursor_shape != self.cursor_shape {
11998 cx.emit(EditorEvent::CursorShapeChanged);
11999 }
12000
12001 let project_settings = ProjectSettings::get_global(cx);
12002 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12003
12004 if self.mode == EditorMode::Full {
12005 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12006 if self.git_blame_inline_enabled != inline_blame_enabled {
12007 self.toggle_git_blame_inline_internal(false, cx);
12008 }
12009 }
12010
12011 cx.notify();
12012 }
12013
12014 pub fn set_searchable(&mut self, searchable: bool) {
12015 self.searchable = searchable;
12016 }
12017
12018 pub fn searchable(&self) -> bool {
12019 self.searchable
12020 }
12021
12022 fn open_proposed_changes_editor(
12023 &mut self,
12024 _: &OpenProposedChangesEditor,
12025 cx: &mut ViewContext<Self>,
12026 ) {
12027 let Some(workspace) = self.workspace() else {
12028 cx.propagate();
12029 return;
12030 };
12031
12032 let selections = self.selections.all::<usize>(cx);
12033 let buffer = self.buffer.read(cx);
12034 let mut new_selections_by_buffer = HashMap::default();
12035 for selection in selections {
12036 for (buffer, range, _) in
12037 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12038 {
12039 let mut range = range.to_point(buffer.read(cx));
12040 range.start.column = 0;
12041 range.end.column = buffer.read(cx).line_len(range.end.row);
12042 new_selections_by_buffer
12043 .entry(buffer)
12044 .or_insert(Vec::new())
12045 .push(range)
12046 }
12047 }
12048
12049 let proposed_changes_buffers = new_selections_by_buffer
12050 .into_iter()
12051 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12052 .collect::<Vec<_>>();
12053 let proposed_changes_editor = cx.new_view(|cx| {
12054 ProposedChangesEditor::new(
12055 "Proposed changes",
12056 proposed_changes_buffers,
12057 self.project.clone(),
12058 cx,
12059 )
12060 });
12061
12062 cx.window_context().defer(move |cx| {
12063 workspace.update(cx, |workspace, cx| {
12064 workspace.active_pane().update(cx, |pane, cx| {
12065 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12066 });
12067 });
12068 });
12069 }
12070
12071 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12072 self.open_excerpts_common(None, true, cx)
12073 }
12074
12075 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12076 self.open_excerpts_common(None, false, cx)
12077 }
12078
12079 fn open_excerpts_common(
12080 &mut self,
12081 jump_data: Option<JumpData>,
12082 split: bool,
12083 cx: &mut ViewContext<Self>,
12084 ) {
12085 let Some(workspace) = self.workspace() else {
12086 cx.propagate();
12087 return;
12088 };
12089
12090 if self.buffer.read(cx).is_singleton() {
12091 cx.propagate();
12092 return;
12093 }
12094
12095 let mut new_selections_by_buffer = HashMap::default();
12096 match &jump_data {
12097 Some(jump_data) => {
12098 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12099 if let Some(buffer) = multi_buffer_snapshot
12100 .buffer_id_for_excerpt(jump_data.excerpt_id)
12101 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12102 {
12103 let buffer_snapshot = buffer.read(cx).snapshot();
12104 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12105 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12106 } else {
12107 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12108 };
12109 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12110 new_selections_by_buffer.insert(
12111 buffer,
12112 (
12113 vec![jump_to_offset..jump_to_offset],
12114 Some(jump_data.line_offset_from_top),
12115 ),
12116 );
12117 }
12118 }
12119 None => {
12120 let selections = self.selections.all::<usize>(cx);
12121 let buffer = self.buffer.read(cx);
12122 for selection in selections {
12123 for (mut buffer_handle, mut range, _) in
12124 buffer.range_to_buffer_ranges(selection.range(), cx)
12125 {
12126 // When editing branch buffers, jump to the corresponding location
12127 // in their base buffer.
12128 let buffer = buffer_handle.read(cx);
12129 if let Some(base_buffer) = buffer.base_buffer() {
12130 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12131 buffer_handle = base_buffer;
12132 }
12133
12134 if selection.reversed {
12135 mem::swap(&mut range.start, &mut range.end);
12136 }
12137 new_selections_by_buffer
12138 .entry(buffer_handle)
12139 .or_insert((Vec::new(), None))
12140 .0
12141 .push(range)
12142 }
12143 }
12144 }
12145 }
12146
12147 if new_selections_by_buffer.is_empty() {
12148 return;
12149 }
12150
12151 // We defer the pane interaction because we ourselves are a workspace item
12152 // and activating a new item causes the pane to call a method on us reentrantly,
12153 // which panics if we're on the stack.
12154 cx.window_context().defer(move |cx| {
12155 workspace.update(cx, |workspace, cx| {
12156 let pane = if split {
12157 workspace.adjacent_pane(cx)
12158 } else {
12159 workspace.active_pane().clone()
12160 };
12161
12162 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12163 let editor = buffer
12164 .read(cx)
12165 .file()
12166 .is_none()
12167 .then(|| {
12168 // Handle file-less buffers separately: those are not really the project items, so won't have a paroject path or entity id,
12169 // so `workspace.open_project_item` will never find them, always opening a new editor.
12170 // Instead, we try to activate the existing editor in the pane first.
12171 let (editor, pane_item_index) =
12172 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12173 let editor = item.downcast::<Editor>()?;
12174 let singleton_buffer =
12175 editor.read(cx).buffer().read(cx).as_singleton()?;
12176 if singleton_buffer == buffer {
12177 Some((editor, i))
12178 } else {
12179 None
12180 }
12181 })?;
12182 pane.update(cx, |pane, cx| {
12183 pane.activate_item(pane_item_index, true, true, cx)
12184 });
12185 Some(editor)
12186 })
12187 .flatten()
12188 .unwrap_or_else(|| {
12189 workspace.open_project_item::<Self>(
12190 pane.clone(),
12191 buffer,
12192 true,
12193 true,
12194 cx,
12195 )
12196 });
12197
12198 editor.update(cx, |editor, cx| {
12199 let autoscroll = match scroll_offset {
12200 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12201 None => Autoscroll::newest(),
12202 };
12203 let nav_history = editor.nav_history.take();
12204 editor.change_selections(Some(autoscroll), cx, |s| {
12205 s.select_ranges(ranges);
12206 });
12207 editor.nav_history = nav_history;
12208 });
12209 }
12210 })
12211 });
12212 }
12213
12214 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12215 let snapshot = self.buffer.read(cx).read(cx);
12216 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12217 Some(
12218 ranges
12219 .iter()
12220 .map(move |range| {
12221 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12222 })
12223 .collect(),
12224 )
12225 }
12226
12227 fn selection_replacement_ranges(
12228 &self,
12229 range: Range<OffsetUtf16>,
12230 cx: &mut AppContext,
12231 ) -> Vec<Range<OffsetUtf16>> {
12232 let selections = self.selections.all::<OffsetUtf16>(cx);
12233 let newest_selection = selections
12234 .iter()
12235 .max_by_key(|selection| selection.id)
12236 .unwrap();
12237 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12238 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12239 let snapshot = self.buffer.read(cx).read(cx);
12240 selections
12241 .into_iter()
12242 .map(|mut selection| {
12243 selection.start.0 =
12244 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12245 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12246 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12247 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12248 })
12249 .collect()
12250 }
12251
12252 fn report_editor_event(
12253 &self,
12254 operation: &'static str,
12255 file_extension: Option<String>,
12256 cx: &AppContext,
12257 ) {
12258 if cfg!(any(test, feature = "test-support")) {
12259 return;
12260 }
12261
12262 let Some(project) = &self.project else { return };
12263
12264 // If None, we are in a file without an extension
12265 let file = self
12266 .buffer
12267 .read(cx)
12268 .as_singleton()
12269 .and_then(|b| b.read(cx).file());
12270 let file_extension = file_extension.or(file
12271 .as_ref()
12272 .and_then(|file| Path::new(file.file_name(cx)).extension())
12273 .and_then(|e| e.to_str())
12274 .map(|a| a.to_string()));
12275
12276 let vim_mode = cx
12277 .global::<SettingsStore>()
12278 .raw_user_settings()
12279 .get("vim_mode")
12280 == Some(&serde_json::Value::Bool(true));
12281
12282 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12283 == language::language_settings::InlineCompletionProvider::Copilot;
12284 let copilot_enabled_for_language = self
12285 .buffer
12286 .read(cx)
12287 .settings_at(0, cx)
12288 .show_inline_completions;
12289
12290 let project = project.read(cx);
12291 let telemetry = project.client().telemetry().clone();
12292 telemetry.report_editor_event(
12293 file_extension,
12294 vim_mode,
12295 operation,
12296 copilot_enabled,
12297 copilot_enabled_for_language,
12298 project.is_via_ssh(),
12299 )
12300 }
12301
12302 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12303 /// with each line being an array of {text, highlight} objects.
12304 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12305 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12306 return;
12307 };
12308
12309 #[derive(Serialize)]
12310 struct Chunk<'a> {
12311 text: String,
12312 highlight: Option<&'a str>,
12313 }
12314
12315 let snapshot = buffer.read(cx).snapshot();
12316 let range = self
12317 .selected_text_range(false, cx)
12318 .and_then(|selection| {
12319 if selection.range.is_empty() {
12320 None
12321 } else {
12322 Some(selection.range)
12323 }
12324 })
12325 .unwrap_or_else(|| 0..snapshot.len());
12326
12327 let chunks = snapshot.chunks(range, true);
12328 let mut lines = Vec::new();
12329 let mut line: VecDeque<Chunk> = VecDeque::new();
12330
12331 let Some(style) = self.style.as_ref() else {
12332 return;
12333 };
12334
12335 for chunk in chunks {
12336 let highlight = chunk
12337 .syntax_highlight_id
12338 .and_then(|id| id.name(&style.syntax));
12339 let mut chunk_lines = chunk.text.split('\n').peekable();
12340 while let Some(text) = chunk_lines.next() {
12341 let mut merged_with_last_token = false;
12342 if let Some(last_token) = line.back_mut() {
12343 if last_token.highlight == highlight {
12344 last_token.text.push_str(text);
12345 merged_with_last_token = true;
12346 }
12347 }
12348
12349 if !merged_with_last_token {
12350 line.push_back(Chunk {
12351 text: text.into(),
12352 highlight,
12353 });
12354 }
12355
12356 if chunk_lines.peek().is_some() {
12357 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12358 line.pop_front();
12359 }
12360 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12361 line.pop_back();
12362 }
12363
12364 lines.push(mem::take(&mut line));
12365 }
12366 }
12367 }
12368
12369 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12370 return;
12371 };
12372 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12373 }
12374
12375 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12376 self.request_autoscroll(Autoscroll::newest(), cx);
12377 let position = self.selections.newest_display(cx).start;
12378 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12379 }
12380
12381 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12382 &self.inlay_hint_cache
12383 }
12384
12385 pub fn replay_insert_event(
12386 &mut self,
12387 text: &str,
12388 relative_utf16_range: Option<Range<isize>>,
12389 cx: &mut ViewContext<Self>,
12390 ) {
12391 if !self.input_enabled {
12392 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12393 return;
12394 }
12395 if let Some(relative_utf16_range) = relative_utf16_range {
12396 let selections = self.selections.all::<OffsetUtf16>(cx);
12397 self.change_selections(None, cx, |s| {
12398 let new_ranges = selections.into_iter().map(|range| {
12399 let start = OffsetUtf16(
12400 range
12401 .head()
12402 .0
12403 .saturating_add_signed(relative_utf16_range.start),
12404 );
12405 let end = OffsetUtf16(
12406 range
12407 .head()
12408 .0
12409 .saturating_add_signed(relative_utf16_range.end),
12410 );
12411 start..end
12412 });
12413 s.select_ranges(new_ranges);
12414 });
12415 }
12416
12417 self.handle_input(text, cx);
12418 }
12419
12420 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12421 let Some(provider) = self.semantics_provider.as_ref() else {
12422 return false;
12423 };
12424
12425 let mut supports = false;
12426 self.buffer().read(cx).for_each_buffer(|buffer| {
12427 supports |= provider.supports_inlay_hints(buffer, cx);
12428 });
12429 supports
12430 }
12431
12432 pub fn focus(&self, cx: &mut WindowContext) {
12433 cx.focus(&self.focus_handle)
12434 }
12435
12436 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12437 self.focus_handle.is_focused(cx)
12438 }
12439
12440 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12441 cx.emit(EditorEvent::Focused);
12442
12443 if let Some(descendant) = self
12444 .last_focused_descendant
12445 .take()
12446 .and_then(|descendant| descendant.upgrade())
12447 {
12448 cx.focus(&descendant);
12449 } else {
12450 if let Some(blame) = self.blame.as_ref() {
12451 blame.update(cx, GitBlame::focus)
12452 }
12453
12454 self.blink_manager.update(cx, BlinkManager::enable);
12455 self.show_cursor_names(cx);
12456 self.buffer.update(cx, |buffer, cx| {
12457 buffer.finalize_last_transaction(cx);
12458 if self.leader_peer_id.is_none() {
12459 buffer.set_active_selections(
12460 &self.selections.disjoint_anchors(),
12461 self.selections.line_mode,
12462 self.cursor_shape,
12463 cx,
12464 );
12465 }
12466 });
12467 }
12468 }
12469
12470 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12471 cx.emit(EditorEvent::FocusedIn)
12472 }
12473
12474 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12475 if event.blurred != self.focus_handle {
12476 self.last_focused_descendant = Some(event.blurred);
12477 }
12478 }
12479
12480 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12481 self.blink_manager.update(cx, BlinkManager::disable);
12482 self.buffer
12483 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12484
12485 if let Some(blame) = self.blame.as_ref() {
12486 blame.update(cx, GitBlame::blur)
12487 }
12488 if !self.hover_state.focused(cx) {
12489 hide_hover(self, cx);
12490 }
12491
12492 self.hide_context_menu(cx);
12493 cx.emit(EditorEvent::Blurred);
12494 cx.notify();
12495 }
12496
12497 pub fn register_action<A: Action>(
12498 &mut self,
12499 listener: impl Fn(&A, &mut WindowContext) + 'static,
12500 ) -> Subscription {
12501 let id = self.next_editor_action_id.post_inc();
12502 let listener = Arc::new(listener);
12503 self.editor_actions.borrow_mut().insert(
12504 id,
12505 Box::new(move |cx| {
12506 let cx = cx.window_context();
12507 let listener = listener.clone();
12508 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12509 let action = action.downcast_ref().unwrap();
12510 if phase == DispatchPhase::Bubble {
12511 listener(action, cx)
12512 }
12513 })
12514 }),
12515 );
12516
12517 let editor_actions = self.editor_actions.clone();
12518 Subscription::new(move || {
12519 editor_actions.borrow_mut().remove(&id);
12520 })
12521 }
12522
12523 pub fn file_header_size(&self) -> u32 {
12524 FILE_HEADER_HEIGHT
12525 }
12526
12527 pub fn revert(
12528 &mut self,
12529 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12530 cx: &mut ViewContext<Self>,
12531 ) {
12532 self.buffer().update(cx, |multi_buffer, cx| {
12533 for (buffer_id, changes) in revert_changes {
12534 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12535 buffer.update(cx, |buffer, cx| {
12536 buffer.edit(
12537 changes.into_iter().map(|(range, text)| {
12538 (range, text.to_string().map(Arc::<str>::from))
12539 }),
12540 None,
12541 cx,
12542 );
12543 });
12544 }
12545 }
12546 });
12547 self.change_selections(None, cx, |selections| selections.refresh());
12548 }
12549
12550 pub fn to_pixel_point(
12551 &mut self,
12552 source: multi_buffer::Anchor,
12553 editor_snapshot: &EditorSnapshot,
12554 cx: &mut ViewContext<Self>,
12555 ) -> Option<gpui::Point<Pixels>> {
12556 let source_point = source.to_display_point(editor_snapshot);
12557 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12558 }
12559
12560 pub fn display_to_pixel_point(
12561 &self,
12562 source: DisplayPoint,
12563 editor_snapshot: &EditorSnapshot,
12564 cx: &WindowContext,
12565 ) -> Option<gpui::Point<Pixels>> {
12566 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12567 let text_layout_details = self.text_layout_details(cx);
12568 let scroll_top = text_layout_details
12569 .scroll_anchor
12570 .scroll_position(editor_snapshot)
12571 .y;
12572
12573 if source.row().as_f32() < scroll_top.floor() {
12574 return None;
12575 }
12576 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12577 let source_y = line_height * (source.row().as_f32() - scroll_top);
12578 Some(gpui::Point::new(source_x, source_y))
12579 }
12580
12581 pub fn has_active_completions_menu(&self) -> bool {
12582 self.context_menu.read().as_ref().map_or(false, |menu| {
12583 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
12584 })
12585 }
12586
12587 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12588 self.addons
12589 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12590 }
12591
12592 pub fn unregister_addon<T: Addon>(&mut self) {
12593 self.addons.remove(&std::any::TypeId::of::<T>());
12594 }
12595
12596 pub fn addon<T: Addon>(&self) -> Option<&T> {
12597 let type_id = std::any::TypeId::of::<T>();
12598 self.addons
12599 .get(&type_id)
12600 .and_then(|item| item.to_any().downcast_ref::<T>())
12601 }
12602
12603 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
12604 let text_layout_details = self.text_layout_details(cx);
12605 let style = &text_layout_details.editor_style;
12606 let font_id = cx.text_system().resolve_font(&style.text.font());
12607 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12608 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12609
12610 let em_width = cx
12611 .text_system()
12612 .typographic_bounds(font_id, font_size, 'm')
12613 .unwrap()
12614 .size
12615 .width;
12616
12617 gpui::Point::new(em_width, line_height)
12618 }
12619}
12620
12621fn get_unstaged_changes_for_buffers(
12622 project: &Model<Project>,
12623 buffers: impl IntoIterator<Item = Model<Buffer>>,
12624 cx: &mut ViewContext<Editor>,
12625) {
12626 let mut tasks = Vec::new();
12627 project.update(cx, |project, cx| {
12628 for buffer in buffers {
12629 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
12630 }
12631 });
12632 cx.spawn(|this, mut cx| async move {
12633 let change_sets = futures::future::join_all(tasks).await;
12634 this.update(&mut cx, |this, cx| {
12635 for change_set in change_sets {
12636 if let Some(change_set) = change_set.log_err() {
12637 this.diff_map.add_change_set(change_set, cx);
12638 }
12639 }
12640 })
12641 .ok();
12642 })
12643 .detach();
12644}
12645
12646fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
12647 let tab_size = tab_size.get() as usize;
12648 let mut width = offset;
12649
12650 for ch in text.chars() {
12651 width += if ch == '\t' {
12652 tab_size - (width % tab_size)
12653 } else {
12654 1
12655 };
12656 }
12657
12658 width - offset
12659}
12660
12661#[cfg(test)]
12662mod tests {
12663 use super::*;
12664
12665 #[test]
12666 fn test_string_size_with_expanded_tabs() {
12667 let nz = |val| NonZeroU32::new(val).unwrap();
12668 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
12669 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
12670 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
12671 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
12672 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
12673 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
12674 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
12675 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
12676 }
12677}
12678
12679/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
12680struct WordBreakingTokenizer<'a> {
12681 input: &'a str,
12682}
12683
12684impl<'a> WordBreakingTokenizer<'a> {
12685 fn new(input: &'a str) -> Self {
12686 Self { input }
12687 }
12688}
12689
12690fn is_char_ideographic(ch: char) -> bool {
12691 use unicode_script::Script::*;
12692 use unicode_script::UnicodeScript;
12693 matches!(ch.script(), Han | Tangut | Yi)
12694}
12695
12696fn is_grapheme_ideographic(text: &str) -> bool {
12697 text.chars().any(is_char_ideographic)
12698}
12699
12700fn is_grapheme_whitespace(text: &str) -> bool {
12701 text.chars().any(|x| x.is_whitespace())
12702}
12703
12704fn should_stay_with_preceding_ideograph(text: &str) -> bool {
12705 text.chars().next().map_or(false, |ch| {
12706 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
12707 })
12708}
12709
12710#[derive(PartialEq, Eq, Debug, Clone, Copy)]
12711struct WordBreakToken<'a> {
12712 token: &'a str,
12713 grapheme_len: usize,
12714 is_whitespace: bool,
12715}
12716
12717impl<'a> Iterator for WordBreakingTokenizer<'a> {
12718 /// Yields a span, the count of graphemes in the token, and whether it was
12719 /// whitespace. Note that it also breaks at word boundaries.
12720 type Item = WordBreakToken<'a>;
12721
12722 fn next(&mut self) -> Option<Self::Item> {
12723 use unicode_segmentation::UnicodeSegmentation;
12724 if self.input.is_empty() {
12725 return None;
12726 }
12727
12728 let mut iter = self.input.graphemes(true).peekable();
12729 let mut offset = 0;
12730 let mut graphemes = 0;
12731 if let Some(first_grapheme) = iter.next() {
12732 let is_whitespace = is_grapheme_whitespace(first_grapheme);
12733 offset += first_grapheme.len();
12734 graphemes += 1;
12735 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
12736 if let Some(grapheme) = iter.peek().copied() {
12737 if should_stay_with_preceding_ideograph(grapheme) {
12738 offset += grapheme.len();
12739 graphemes += 1;
12740 }
12741 }
12742 } else {
12743 let mut words = self.input[offset..].split_word_bound_indices().peekable();
12744 let mut next_word_bound = words.peek().copied();
12745 if next_word_bound.map_or(false, |(i, _)| i == 0) {
12746 next_word_bound = words.next();
12747 }
12748 while let Some(grapheme) = iter.peek().copied() {
12749 if next_word_bound.map_or(false, |(i, _)| i == offset) {
12750 break;
12751 };
12752 if is_grapheme_whitespace(grapheme) != is_whitespace {
12753 break;
12754 };
12755 offset += grapheme.len();
12756 graphemes += 1;
12757 iter.next();
12758 }
12759 }
12760 let token = &self.input[..offset];
12761 self.input = &self.input[offset..];
12762 if is_whitespace {
12763 Some(WordBreakToken {
12764 token: " ",
12765 grapheme_len: 1,
12766 is_whitespace: true,
12767 })
12768 } else {
12769 Some(WordBreakToken {
12770 token,
12771 grapheme_len: graphemes,
12772 is_whitespace: false,
12773 })
12774 }
12775 } else {
12776 None
12777 }
12778 }
12779}
12780
12781#[test]
12782fn test_word_breaking_tokenizer() {
12783 let tests: &[(&str, &[(&str, usize, bool)])] = &[
12784 ("", &[]),
12785 (" ", &[(" ", 1, true)]),
12786 ("Ʒ", &[("Ʒ", 1, false)]),
12787 ("Ǽ", &[("Ǽ", 1, false)]),
12788 ("⋑", &[("⋑", 1, false)]),
12789 ("⋑⋑", &[("⋑⋑", 2, false)]),
12790 (
12791 "原理，进而",
12792 &[
12793 ("原", 1, false),
12794 ("理，", 2, false),
12795 ("进", 1, false),
12796 ("而", 1, false),
12797 ],
12798 ),
12799 (
12800 "hello world",
12801 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
12802 ),
12803 (
12804 "hello, world",
12805 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
12806 ),
12807 (
12808 " hello world",
12809 &[
12810 (" ", 1, true),
12811 ("hello", 5, false),
12812 (" ", 1, true),
12813 ("world", 5, false),
12814 ],
12815 ),
12816 (
12817 "这是什么 \n 钢笔",
12818 &[
12819 ("这", 1, false),
12820 ("是", 1, false),
12821 ("什", 1, false),
12822 ("么", 1, false),
12823 (" ", 1, true),
12824 ("钢", 1, false),
12825 ("笔", 1, false),
12826 ],
12827 ),
12828 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
12829 ];
12830
12831 for (input, result) in tests {
12832 assert_eq!(
12833 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
12834 result
12835 .iter()
12836 .copied()
12837 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
12838 token,
12839 grapheme_len,
12840 is_whitespace,
12841 })
12842 .collect::<Vec<_>>()
12843 );
12844 }
12845}
12846
12847fn wrap_with_prefix(
12848 line_prefix: String,
12849 unwrapped_text: String,
12850 wrap_column: usize,
12851 tab_size: NonZeroU32,
12852) -> String {
12853 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
12854 let mut wrapped_text = String::new();
12855 let mut current_line = line_prefix.clone();
12856
12857 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
12858 let mut current_line_len = line_prefix_len;
12859 for WordBreakToken {
12860 token,
12861 grapheme_len,
12862 is_whitespace,
12863 } in tokenizer
12864 {
12865 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
12866 wrapped_text.push_str(current_line.trim_end());
12867 wrapped_text.push('\n');
12868 current_line.truncate(line_prefix.len());
12869 current_line_len = line_prefix_len;
12870 if !is_whitespace {
12871 current_line.push_str(token);
12872 current_line_len += grapheme_len;
12873 }
12874 } else if !is_whitespace {
12875 current_line.push_str(token);
12876 current_line_len += grapheme_len;
12877 } else if current_line_len != line_prefix_len {
12878 current_line.push(' ');
12879 current_line_len += 1;
12880 }
12881 }
12882
12883 if !current_line.is_empty() {
12884 wrapped_text.push_str(¤t_line);
12885 }
12886 wrapped_text
12887}
12888
12889#[test]
12890fn test_wrap_with_prefix() {
12891 assert_eq!(
12892 wrap_with_prefix(
12893 "# ".to_string(),
12894 "abcdefg".to_string(),
12895 4,
12896 NonZeroU32::new(4).unwrap()
12897 ),
12898 "# abcdefg"
12899 );
12900 assert_eq!(
12901 wrap_with_prefix(
12902 "".to_string(),
12903 "\thello world".to_string(),
12904 8,
12905 NonZeroU32::new(4).unwrap()
12906 ),
12907 "hello\nworld"
12908 );
12909 assert_eq!(
12910 wrap_with_prefix(
12911 "// ".to_string(),
12912 "xx \nyy zz aa bb cc".to_string(),
12913 12,
12914 NonZeroU32::new(4).unwrap()
12915 ),
12916 "// xx yy zz\n// aa bb cc"
12917 );
12918 assert_eq!(
12919 wrap_with_prefix(
12920 String::new(),
12921 "这是什么 \n 钢笔".to_string(),
12922 3,
12923 NonZeroU32::new(4).unwrap()
12924 ),
12925 "这是什\n么 钢\n笔"
12926 );
12927}
12928
12929fn hunks_for_selections(
12930 snapshot: &EditorSnapshot,
12931 selections: &[Selection<Point>],
12932) -> Vec<MultiBufferDiffHunk> {
12933 hunks_for_ranges(
12934 selections.iter().map(|selection| selection.range()),
12935 snapshot,
12936 )
12937}
12938
12939pub fn hunks_for_ranges(
12940 ranges: impl Iterator<Item = Range<Point>>,
12941 snapshot: &EditorSnapshot,
12942) -> Vec<MultiBufferDiffHunk> {
12943 let mut hunks = Vec::new();
12944 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
12945 HashMap::default();
12946 for query_range in ranges {
12947 let query_rows =
12948 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
12949 for hunk in snapshot.diff_map.diff_hunks_in_range(
12950 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
12951 &snapshot.buffer_snapshot,
12952 ) {
12953 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
12954 // when the caret is just above or just below the deleted hunk.
12955 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
12956 let related_to_selection = if allow_adjacent {
12957 hunk.row_range.overlaps(&query_rows)
12958 || hunk.row_range.start == query_rows.end
12959 || hunk.row_range.end == query_rows.start
12960 } else {
12961 hunk.row_range.overlaps(&query_rows)
12962 };
12963 if related_to_selection {
12964 if !processed_buffer_rows
12965 .entry(hunk.buffer_id)
12966 .or_default()
12967 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
12968 {
12969 continue;
12970 }
12971 hunks.push(hunk);
12972 }
12973 }
12974 }
12975
12976 hunks
12977}
12978
12979pub trait CollaborationHub {
12980 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
12981 fn user_participant_indices<'a>(
12982 &self,
12983 cx: &'a AppContext,
12984 ) -> &'a HashMap<u64, ParticipantIndex>;
12985 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
12986}
12987
12988impl CollaborationHub for Model<Project> {
12989 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
12990 self.read(cx).collaborators()
12991 }
12992
12993 fn user_participant_indices<'a>(
12994 &self,
12995 cx: &'a AppContext,
12996 ) -> &'a HashMap<u64, ParticipantIndex> {
12997 self.read(cx).user_store().read(cx).participant_indices()
12998 }
12999
13000 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13001 let this = self.read(cx);
13002 let user_ids = this.collaborators().values().map(|c| c.user_id);
13003 this.user_store().read_with(cx, |user_store, cx| {
13004 user_store.participant_names(user_ids, cx)
13005 })
13006 }
13007}
13008
13009pub trait SemanticsProvider {
13010 fn hover(
13011 &self,
13012 buffer: &Model<Buffer>,
13013 position: text::Anchor,
13014 cx: &mut AppContext,
13015 ) -> Option<Task<Vec<project::Hover>>>;
13016
13017 fn inlay_hints(
13018 &self,
13019 buffer_handle: Model<Buffer>,
13020 range: Range<text::Anchor>,
13021 cx: &mut AppContext,
13022 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13023
13024 fn resolve_inlay_hint(
13025 &self,
13026 hint: InlayHint,
13027 buffer_handle: Model<Buffer>,
13028 server_id: LanguageServerId,
13029 cx: &mut AppContext,
13030 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13031
13032 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13033
13034 fn document_highlights(
13035 &self,
13036 buffer: &Model<Buffer>,
13037 position: text::Anchor,
13038 cx: &mut AppContext,
13039 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13040
13041 fn definitions(
13042 &self,
13043 buffer: &Model<Buffer>,
13044 position: text::Anchor,
13045 kind: GotoDefinitionKind,
13046 cx: &mut AppContext,
13047 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13048
13049 fn range_for_rename(
13050 &self,
13051 buffer: &Model<Buffer>,
13052 position: text::Anchor,
13053 cx: &mut AppContext,
13054 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13055
13056 fn perform_rename(
13057 &self,
13058 buffer: &Model<Buffer>,
13059 position: text::Anchor,
13060 new_name: String,
13061 cx: &mut AppContext,
13062 ) -> Option<Task<Result<ProjectTransaction>>>;
13063}
13064
13065pub trait CompletionProvider {
13066 fn completions(
13067 &self,
13068 buffer: &Model<Buffer>,
13069 buffer_position: text::Anchor,
13070 trigger: CompletionContext,
13071 cx: &mut ViewContext<Editor>,
13072 ) -> Task<Result<Vec<Completion>>>;
13073
13074 fn resolve_completions(
13075 &self,
13076 buffer: Model<Buffer>,
13077 completion_indices: Vec<usize>,
13078 completions: Arc<RwLock<Box<[Completion]>>>,
13079 cx: &mut ViewContext<Editor>,
13080 ) -> Task<Result<bool>>;
13081
13082 fn apply_additional_edits_for_completion(
13083 &self,
13084 buffer: Model<Buffer>,
13085 completion: Completion,
13086 push_to_history: bool,
13087 cx: &mut ViewContext<Editor>,
13088 ) -> Task<Result<Option<language::Transaction>>>;
13089
13090 fn is_completion_trigger(
13091 &self,
13092 buffer: &Model<Buffer>,
13093 position: language::Anchor,
13094 text: &str,
13095 trigger_in_words: bool,
13096 cx: &mut ViewContext<Editor>,
13097 ) -> bool;
13098
13099 fn sort_completions(&self) -> bool {
13100 true
13101 }
13102}
13103
13104pub trait CodeActionProvider {
13105 fn code_actions(
13106 &self,
13107 buffer: &Model<Buffer>,
13108 range: Range<text::Anchor>,
13109 cx: &mut WindowContext,
13110 ) -> Task<Result<Vec<CodeAction>>>;
13111
13112 fn apply_code_action(
13113 &self,
13114 buffer_handle: Model<Buffer>,
13115 action: CodeAction,
13116 excerpt_id: ExcerptId,
13117 push_to_history: bool,
13118 cx: &mut WindowContext,
13119 ) -> Task<Result<ProjectTransaction>>;
13120}
13121
13122impl CodeActionProvider for Model<Project> {
13123 fn code_actions(
13124 &self,
13125 buffer: &Model<Buffer>,
13126 range: Range<text::Anchor>,
13127 cx: &mut WindowContext,
13128 ) -> Task<Result<Vec<CodeAction>>> {
13129 self.update(cx, |project, cx| {
13130 project.code_actions(buffer, range, None, cx)
13131 })
13132 }
13133
13134 fn apply_code_action(
13135 &self,
13136 buffer_handle: Model<Buffer>,
13137 action: CodeAction,
13138 _excerpt_id: ExcerptId,
13139 push_to_history: bool,
13140 cx: &mut WindowContext,
13141 ) -> Task<Result<ProjectTransaction>> {
13142 self.update(cx, |project, cx| {
13143 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13144 })
13145 }
13146}
13147
13148fn snippet_completions(
13149 project: &Project,
13150 buffer: &Model<Buffer>,
13151 buffer_position: text::Anchor,
13152 cx: &mut AppContext,
13153) -> Task<Result<Vec<Completion>>> {
13154 let language = buffer.read(cx).language_at(buffer_position);
13155 let language_name = language.as_ref().map(|language| language.lsp_id());
13156 let snippet_store = project.snippets().read(cx);
13157 let snippets = snippet_store.snippets_for(language_name, cx);
13158
13159 if snippets.is_empty() {
13160 return Task::ready(Ok(vec![]));
13161 }
13162 let snapshot = buffer.read(cx).text_snapshot();
13163 let chars: String = snapshot
13164 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13165 .collect();
13166
13167 let scope = language.map(|language| language.default_scope());
13168 let executor = cx.background_executor().clone();
13169
13170 cx.background_executor().spawn(async move {
13171 let classifier = CharClassifier::new(scope).for_completion(true);
13172 let mut last_word = chars
13173 .chars()
13174 .take_while(|c| classifier.is_word(*c))
13175 .collect::<String>();
13176 last_word = last_word.chars().rev().collect();
13177
13178 if last_word.is_empty() {
13179 return Ok(vec![]);
13180 }
13181
13182 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13183 let to_lsp = |point: &text::Anchor| {
13184 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13185 point_to_lsp(end)
13186 };
13187 let lsp_end = to_lsp(&buffer_position);
13188
13189 let candidates = snippets
13190 .iter()
13191 .enumerate()
13192 .flat_map(|(ix, snippet)| {
13193 snippet
13194 .prefix
13195 .iter()
13196 .map(move |prefix| StringMatchCandidate::new(ix, prefix.clone()))
13197 })
13198 .collect::<Vec<StringMatchCandidate>>();
13199
13200 let mut matches = fuzzy::match_strings(
13201 &candidates,
13202 &last_word,
13203 last_word.chars().any(|c| c.is_uppercase()),
13204 100,
13205 &Default::default(),
13206 executor,
13207 )
13208 .await;
13209
13210 // Remove all candidates where the query's start does not match the start of any word in the candidate
13211 if let Some(query_start) = last_word.chars().next() {
13212 matches.retain(|string_match| {
13213 split_words(&string_match.string).any(|word| {
13214 // Check that the first codepoint of the word as lowercase matches the first
13215 // codepoint of the query as lowercase
13216 word.chars()
13217 .flat_map(|codepoint| codepoint.to_lowercase())
13218 .zip(query_start.to_lowercase())
13219 .all(|(word_cp, query_cp)| word_cp == query_cp)
13220 })
13221 });
13222 }
13223
13224 let matched_strings = matches
13225 .into_iter()
13226 .map(|m| m.string)
13227 .collect::<HashSet<_>>();
13228
13229 let result: Vec<Completion> = snippets
13230 .into_iter()
13231 .filter_map(|snippet| {
13232 let matching_prefix = snippet
13233 .prefix
13234 .iter()
13235 .find(|prefix| matched_strings.contains(*prefix))?;
13236 let start = as_offset - last_word.len();
13237 let start = snapshot.anchor_before(start);
13238 let range = start..buffer_position;
13239 let lsp_start = to_lsp(&start);
13240 let lsp_range = lsp::Range {
13241 start: lsp_start,
13242 end: lsp_end,
13243 };
13244 Some(Completion {
13245 old_range: range,
13246 new_text: snippet.body.clone(),
13247 label: CodeLabel {
13248 text: matching_prefix.clone(),
13249 runs: vec![],
13250 filter_range: 0..matching_prefix.len(),
13251 },
13252 server_id: LanguageServerId(usize::MAX),
13253 documentation: snippet.description.clone().map(Documentation::SingleLine),
13254 lsp_completion: lsp::CompletionItem {
13255 label: snippet.prefix.first().unwrap().clone(),
13256 kind: Some(CompletionItemKind::SNIPPET),
13257 label_details: snippet.description.as_ref().map(|description| {
13258 lsp::CompletionItemLabelDetails {
13259 detail: Some(description.clone()),
13260 description: None,
13261 }
13262 }),
13263 insert_text_format: Some(InsertTextFormat::SNIPPET),
13264 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13265 lsp::InsertReplaceEdit {
13266 new_text: snippet.body.clone(),
13267 insert: lsp_range,
13268 replace: lsp_range,
13269 },
13270 )),
13271 filter_text: Some(snippet.body.clone()),
13272 sort_text: Some(char::MAX.to_string()),
13273 ..Default::default()
13274 },
13275 confirm: None,
13276 })
13277 })
13278 .collect();
13279
13280 Ok(result)
13281 })
13282}
13283
13284impl CompletionProvider for Model<Project> {
13285 fn completions(
13286 &self,
13287 buffer: &Model<Buffer>,
13288 buffer_position: text::Anchor,
13289 options: CompletionContext,
13290 cx: &mut ViewContext<Editor>,
13291 ) -> Task<Result<Vec<Completion>>> {
13292 self.update(cx, |project, cx| {
13293 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13294 let project_completions = project.completions(buffer, buffer_position, options, cx);
13295 cx.background_executor().spawn(async move {
13296 let mut completions = project_completions.await?;
13297 let snippets_completions = snippets.await?;
13298 completions.extend(snippets_completions);
13299 Ok(completions)
13300 })
13301 })
13302 }
13303
13304 fn resolve_completions(
13305 &self,
13306 buffer: Model<Buffer>,
13307 completion_indices: Vec<usize>,
13308 completions: Arc<RwLock<Box<[Completion]>>>,
13309 cx: &mut ViewContext<Editor>,
13310 ) -> Task<Result<bool>> {
13311 self.update(cx, |project, cx| {
13312 project.resolve_completions(buffer, completion_indices, completions, cx)
13313 })
13314 }
13315
13316 fn apply_additional_edits_for_completion(
13317 &self,
13318 buffer: Model<Buffer>,
13319 completion: Completion,
13320 push_to_history: bool,
13321 cx: &mut ViewContext<Editor>,
13322 ) -> Task<Result<Option<language::Transaction>>> {
13323 self.update(cx, |project, cx| {
13324 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13325 })
13326 }
13327
13328 fn is_completion_trigger(
13329 &self,
13330 buffer: &Model<Buffer>,
13331 position: language::Anchor,
13332 text: &str,
13333 trigger_in_words: bool,
13334 cx: &mut ViewContext<Editor>,
13335 ) -> bool {
13336 let mut chars = text.chars();
13337 let char = if let Some(char) = chars.next() {
13338 char
13339 } else {
13340 return false;
13341 };
13342 if chars.next().is_some() {
13343 return false;
13344 }
13345
13346 let buffer = buffer.read(cx);
13347 let snapshot = buffer.snapshot();
13348 if !snapshot.settings_at(position, cx).show_completions_on_input {
13349 return false;
13350 }
13351 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13352 if trigger_in_words && classifier.is_word(char) {
13353 return true;
13354 }
13355
13356 buffer.completion_triggers().contains(text)
13357 }
13358}
13359
13360impl SemanticsProvider for Model<Project> {
13361 fn hover(
13362 &self,
13363 buffer: &Model<Buffer>,
13364 position: text::Anchor,
13365 cx: &mut AppContext,
13366 ) -> Option<Task<Vec<project::Hover>>> {
13367 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13368 }
13369
13370 fn document_highlights(
13371 &self,
13372 buffer: &Model<Buffer>,
13373 position: text::Anchor,
13374 cx: &mut AppContext,
13375 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13376 Some(self.update(cx, |project, cx| {
13377 project.document_highlights(buffer, position, cx)
13378 }))
13379 }
13380
13381 fn definitions(
13382 &self,
13383 buffer: &Model<Buffer>,
13384 position: text::Anchor,
13385 kind: GotoDefinitionKind,
13386 cx: &mut AppContext,
13387 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13388 Some(self.update(cx, |project, cx| match kind {
13389 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13390 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13391 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13392 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13393 }))
13394 }
13395
13396 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13397 // TODO: make this work for remote projects
13398 self.read(cx)
13399 .language_servers_for_local_buffer(buffer.read(cx), cx)
13400 .any(
13401 |(_, server)| match server.capabilities().inlay_hint_provider {
13402 Some(lsp::OneOf::Left(enabled)) => enabled,
13403 Some(lsp::OneOf::Right(_)) => true,
13404 None => false,
13405 },
13406 )
13407 }
13408
13409 fn inlay_hints(
13410 &self,
13411 buffer_handle: Model<Buffer>,
13412 range: Range<text::Anchor>,
13413 cx: &mut AppContext,
13414 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13415 Some(self.update(cx, |project, cx| {
13416 project.inlay_hints(buffer_handle, range, cx)
13417 }))
13418 }
13419
13420 fn resolve_inlay_hint(
13421 &self,
13422 hint: InlayHint,
13423 buffer_handle: Model<Buffer>,
13424 server_id: LanguageServerId,
13425 cx: &mut AppContext,
13426 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13427 Some(self.update(cx, |project, cx| {
13428 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13429 }))
13430 }
13431
13432 fn range_for_rename(
13433 &self,
13434 buffer: &Model<Buffer>,
13435 position: text::Anchor,
13436 cx: &mut AppContext,
13437 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13438 Some(self.update(cx, |project, cx| {
13439 project.prepare_rename(buffer.clone(), position, cx)
13440 }))
13441 }
13442
13443 fn perform_rename(
13444 &self,
13445 buffer: &Model<Buffer>,
13446 position: text::Anchor,
13447 new_name: String,
13448 cx: &mut AppContext,
13449 ) -> Option<Task<Result<ProjectTransaction>>> {
13450 Some(self.update(cx, |project, cx| {
13451 project.perform_rename(buffer.clone(), position, new_name, cx)
13452 }))
13453 }
13454}
13455
13456fn inlay_hint_settings(
13457 location: Anchor,
13458 snapshot: &MultiBufferSnapshot,
13459 cx: &mut ViewContext<'_, Editor>,
13460) -> InlayHintSettings {
13461 let file = snapshot.file_at(location);
13462 let language = snapshot.language_at(location).map(|l| l.name());
13463 language_settings(language, file, cx).inlay_hints
13464}
13465
13466fn consume_contiguous_rows(
13467 contiguous_row_selections: &mut Vec<Selection<Point>>,
13468 selection: &Selection<Point>,
13469 display_map: &DisplaySnapshot,
13470 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13471) -> (MultiBufferRow, MultiBufferRow) {
13472 contiguous_row_selections.push(selection.clone());
13473 let start_row = MultiBufferRow(selection.start.row);
13474 let mut end_row = ending_row(selection, display_map);
13475
13476 while let Some(next_selection) = selections.peek() {
13477 if next_selection.start.row <= end_row.0 {
13478 end_row = ending_row(next_selection, display_map);
13479 contiguous_row_selections.push(selections.next().unwrap().clone());
13480 } else {
13481 break;
13482 }
13483 }
13484 (start_row, end_row)
13485}
13486
13487fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13488 if next_selection.end.column > 0 || next_selection.is_empty() {
13489 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13490 } else {
13491 MultiBufferRow(next_selection.end.row)
13492 }
13493}
13494
13495impl EditorSnapshot {
13496 pub fn remote_selections_in_range<'a>(
13497 &'a self,
13498 range: &'a Range<Anchor>,
13499 collaboration_hub: &dyn CollaborationHub,
13500 cx: &'a AppContext,
13501 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13502 let participant_names = collaboration_hub.user_names(cx);
13503 let participant_indices = collaboration_hub.user_participant_indices(cx);
13504 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13505 let collaborators_by_replica_id = collaborators_by_peer_id
13506 .iter()
13507 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13508 .collect::<HashMap<_, _>>();
13509 self.buffer_snapshot
13510 .selections_in_range(range, false)
13511 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13512 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13513 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13514 let user_name = participant_names.get(&collaborator.user_id).cloned();
13515 Some(RemoteSelection {
13516 replica_id,
13517 selection,
13518 cursor_shape,
13519 line_mode,
13520 participant_index,
13521 peer_id: collaborator.peer_id,
13522 user_name,
13523 })
13524 })
13525 }
13526
13527 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13528 self.display_snapshot.buffer_snapshot.language_at(position)
13529 }
13530
13531 pub fn is_focused(&self) -> bool {
13532 self.is_focused
13533 }
13534
13535 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13536 self.placeholder_text.as_ref()
13537 }
13538
13539 pub fn scroll_position(&self) -> gpui::Point<f32> {
13540 self.scroll_anchor.scroll_position(&self.display_snapshot)
13541 }
13542
13543 fn gutter_dimensions(
13544 &self,
13545 font_id: FontId,
13546 font_size: Pixels,
13547 em_width: Pixels,
13548 em_advance: Pixels,
13549 max_line_number_width: Pixels,
13550 cx: &AppContext,
13551 ) -> GutterDimensions {
13552 if !self.show_gutter {
13553 return GutterDimensions::default();
13554 }
13555 let descent = cx.text_system().descent(font_id, font_size);
13556
13557 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13558 matches!(
13559 ProjectSettings::get_global(cx).git.git_gutter,
13560 Some(GitGutterSetting::TrackedFiles)
13561 )
13562 });
13563 let gutter_settings = EditorSettings::get_global(cx).gutter;
13564 let show_line_numbers = self
13565 .show_line_numbers
13566 .unwrap_or(gutter_settings.line_numbers);
13567 let line_gutter_width = if show_line_numbers {
13568 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13569 let min_width_for_number_on_gutter = em_advance * 4.0;
13570 max_line_number_width.max(min_width_for_number_on_gutter)
13571 } else {
13572 0.0.into()
13573 };
13574
13575 let show_code_actions = self
13576 .show_code_actions
13577 .unwrap_or(gutter_settings.code_actions);
13578
13579 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13580
13581 let git_blame_entries_width =
13582 self.git_blame_gutter_max_author_length
13583 .map(|max_author_length| {
13584 // Length of the author name, but also space for the commit hash,
13585 // the spacing and the timestamp.
13586 let max_char_count = max_author_length
13587 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13588 + 7 // length of commit sha
13589 + 14 // length of max relative timestamp ("60 minutes ago")
13590 + 4; // gaps and margins
13591
13592 em_advance * max_char_count
13593 });
13594
13595 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13596 left_padding += if show_code_actions || show_runnables {
13597 em_width * 3.0
13598 } else if show_git_gutter && show_line_numbers {
13599 em_width * 2.0
13600 } else if show_git_gutter || show_line_numbers {
13601 em_width
13602 } else {
13603 px(0.)
13604 };
13605
13606 let right_padding = if gutter_settings.folds && show_line_numbers {
13607 em_width * 4.0
13608 } else if gutter_settings.folds {
13609 em_width * 3.0
13610 } else if show_line_numbers {
13611 em_width
13612 } else {
13613 px(0.)
13614 };
13615
13616 GutterDimensions {
13617 left_padding,
13618 right_padding,
13619 width: line_gutter_width + left_padding + right_padding,
13620 margin: -descent,
13621 git_blame_entries_width,
13622 }
13623 }
13624
13625 pub fn render_crease_toggle(
13626 &self,
13627 buffer_row: MultiBufferRow,
13628 row_contains_cursor: bool,
13629 editor: View<Editor>,
13630 cx: &mut WindowContext,
13631 ) -> Option<AnyElement> {
13632 let folded = self.is_line_folded(buffer_row);
13633 let mut is_foldable = false;
13634
13635 if let Some(crease) = self
13636 .crease_snapshot
13637 .query_row(buffer_row, &self.buffer_snapshot)
13638 {
13639 is_foldable = true;
13640 match crease {
13641 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
13642 if let Some(render_toggle) = render_toggle {
13643 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13644 if folded {
13645 editor.update(cx, |editor, cx| {
13646 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13647 });
13648 } else {
13649 editor.update(cx, |editor, cx| {
13650 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13651 });
13652 }
13653 });
13654 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
13655 }
13656 }
13657 }
13658 }
13659
13660 is_foldable |= self.starts_indent(buffer_row);
13661
13662 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
13663 Some(
13664 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
13665 .selected(folded)
13666 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13667 if folded {
13668 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13669 } else {
13670 this.fold_at(&FoldAt { buffer_row }, cx);
13671 }
13672 }))
13673 .into_any_element(),
13674 )
13675 } else {
13676 None
13677 }
13678 }
13679
13680 pub fn render_crease_trailer(
13681 &self,
13682 buffer_row: MultiBufferRow,
13683 cx: &mut WindowContext,
13684 ) -> Option<AnyElement> {
13685 let folded = self.is_line_folded(buffer_row);
13686 if let Crease::Inline { render_trailer, .. } = self
13687 .crease_snapshot
13688 .query_row(buffer_row, &self.buffer_snapshot)?
13689 {
13690 let render_trailer = render_trailer.as_ref()?;
13691 Some(render_trailer(buffer_row, folded, cx))
13692 } else {
13693 None
13694 }
13695 }
13696}
13697
13698impl Deref for EditorSnapshot {
13699 type Target = DisplaySnapshot;
13700
13701 fn deref(&self) -> &Self::Target {
13702 &self.display_snapshot
13703 }
13704}
13705
13706#[derive(Clone, Debug, PartialEq, Eq)]
13707pub enum EditorEvent {
13708 InputIgnored {
13709 text: Arc<str>,
13710 },
13711 InputHandled {
13712 utf16_range_to_replace: Option<Range<isize>>,
13713 text: Arc<str>,
13714 },
13715 ExcerptsAdded {
13716 buffer: Model<Buffer>,
13717 predecessor: ExcerptId,
13718 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
13719 },
13720 ExcerptsRemoved {
13721 ids: Vec<ExcerptId>,
13722 },
13723 ExcerptsEdited {
13724 ids: Vec<ExcerptId>,
13725 },
13726 ExcerptsExpanded {
13727 ids: Vec<ExcerptId>,
13728 },
13729 BufferEdited,
13730 Edited {
13731 transaction_id: clock::Lamport,
13732 },
13733 Reparsed(BufferId),
13734 Focused,
13735 FocusedIn,
13736 Blurred,
13737 DirtyChanged,
13738 Saved,
13739 TitleChanged,
13740 DiffBaseChanged,
13741 SelectionsChanged {
13742 local: bool,
13743 },
13744 ScrollPositionChanged {
13745 local: bool,
13746 autoscroll: bool,
13747 },
13748 Closed,
13749 TransactionUndone {
13750 transaction_id: clock::Lamport,
13751 },
13752 TransactionBegun {
13753 transaction_id: clock::Lamport,
13754 },
13755 Reloaded,
13756 CursorShapeChanged,
13757}
13758
13759impl EventEmitter<EditorEvent> for Editor {}
13760
13761impl FocusableView for Editor {
13762 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
13763 self.focus_handle.clone()
13764 }
13765}
13766
13767impl Render for Editor {
13768 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
13769 let settings = ThemeSettings::get_global(cx);
13770
13771 let mut text_style = match self.mode {
13772 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
13773 color: cx.theme().colors().editor_foreground,
13774 font_family: settings.ui_font.family.clone(),
13775 font_features: settings.ui_font.features.clone(),
13776 font_fallbacks: settings.ui_font.fallbacks.clone(),
13777 font_size: rems(0.875).into(),
13778 font_weight: settings.ui_font.weight,
13779 line_height: relative(settings.buffer_line_height.value()),
13780 ..Default::default()
13781 },
13782 EditorMode::Full => TextStyle {
13783 color: cx.theme().colors().editor_foreground,
13784 font_family: settings.buffer_font.family.clone(),
13785 font_features: settings.buffer_font.features.clone(),
13786 font_fallbacks: settings.buffer_font.fallbacks.clone(),
13787 font_size: settings.buffer_font_size(cx).into(),
13788 font_weight: settings.buffer_font.weight,
13789 line_height: relative(settings.buffer_line_height.value()),
13790 ..Default::default()
13791 },
13792 };
13793 if let Some(text_style_refinement) = &self.text_style_refinement {
13794 text_style.refine(text_style_refinement)
13795 }
13796
13797 let background = match self.mode {
13798 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
13799 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
13800 EditorMode::Full => cx.theme().colors().editor_background,
13801 };
13802
13803 EditorElement::new(
13804 cx.view(),
13805 EditorStyle {
13806 background,
13807 local_player: cx.theme().players().local(),
13808 text: text_style,
13809 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
13810 syntax: cx.theme().syntax().clone(),
13811 status: cx.theme().status().clone(),
13812 inlay_hints_style: make_inlay_hints_style(cx),
13813 suggestions_style: HighlightStyle {
13814 color: Some(cx.theme().status().predictive),
13815 ..HighlightStyle::default()
13816 },
13817 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
13818 },
13819 )
13820 }
13821}
13822
13823impl ViewInputHandler for Editor {
13824 fn text_for_range(
13825 &mut self,
13826 range_utf16: Range<usize>,
13827 adjusted_range: &mut Option<Range<usize>>,
13828 cx: &mut ViewContext<Self>,
13829 ) -> Option<String> {
13830 let snapshot = self.buffer.read(cx).read(cx);
13831 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
13832 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
13833 if (start.0..end.0) != range_utf16 {
13834 adjusted_range.replace(start.0..end.0);
13835 }
13836 Some(snapshot.text_for_range(start..end).collect())
13837 }
13838
13839 fn selected_text_range(
13840 &mut self,
13841 ignore_disabled_input: bool,
13842 cx: &mut ViewContext<Self>,
13843 ) -> Option<UTF16Selection> {
13844 // Prevent the IME menu from appearing when holding down an alphabetic key
13845 // while input is disabled.
13846 if !ignore_disabled_input && !self.input_enabled {
13847 return None;
13848 }
13849
13850 let selection = self.selections.newest::<OffsetUtf16>(cx);
13851 let range = selection.range();
13852
13853 Some(UTF16Selection {
13854 range: range.start.0..range.end.0,
13855 reversed: selection.reversed,
13856 })
13857 }
13858
13859 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
13860 let snapshot = self.buffer.read(cx).read(cx);
13861 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
13862 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
13863 }
13864
13865 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
13866 self.clear_highlights::<InputComposition>(cx);
13867 self.ime_transaction.take();
13868 }
13869
13870 fn replace_text_in_range(
13871 &mut self,
13872 range_utf16: Option<Range<usize>>,
13873 text: &str,
13874 cx: &mut ViewContext<Self>,
13875 ) {
13876 if !self.input_enabled {
13877 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13878 return;
13879 }
13880
13881 self.transact(cx, |this, cx| {
13882 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
13883 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13884 Some(this.selection_replacement_ranges(range_utf16, cx))
13885 } else {
13886 this.marked_text_ranges(cx)
13887 };
13888
13889 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
13890 let newest_selection_id = this.selections.newest_anchor().id;
13891 this.selections
13892 .all::<OffsetUtf16>(cx)
13893 .iter()
13894 .zip(ranges_to_replace.iter())
13895 .find_map(|(selection, range)| {
13896 if selection.id == newest_selection_id {
13897 Some(
13898 (range.start.0 as isize - selection.head().0 as isize)
13899 ..(range.end.0 as isize - selection.head().0 as isize),
13900 )
13901 } else {
13902 None
13903 }
13904 })
13905 });
13906
13907 cx.emit(EditorEvent::InputHandled {
13908 utf16_range_to_replace: range_to_replace,
13909 text: text.into(),
13910 });
13911
13912 if let Some(new_selected_ranges) = new_selected_ranges {
13913 this.change_selections(None, cx, |selections| {
13914 selections.select_ranges(new_selected_ranges)
13915 });
13916 this.backspace(&Default::default(), cx);
13917 }
13918
13919 this.handle_input(text, cx);
13920 });
13921
13922 if let Some(transaction) = self.ime_transaction {
13923 self.buffer.update(cx, |buffer, cx| {
13924 buffer.group_until_transaction(transaction, cx);
13925 });
13926 }
13927
13928 self.unmark_text(cx);
13929 }
13930
13931 fn replace_and_mark_text_in_range(
13932 &mut self,
13933 range_utf16: Option<Range<usize>>,
13934 text: &str,
13935 new_selected_range_utf16: Option<Range<usize>>,
13936 cx: &mut ViewContext<Self>,
13937 ) {
13938 if !self.input_enabled {
13939 return;
13940 }
13941
13942 let transaction = self.transact(cx, |this, cx| {
13943 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
13944 let snapshot = this.buffer.read(cx).read(cx);
13945 if let Some(relative_range_utf16) = range_utf16.as_ref() {
13946 for marked_range in &mut marked_ranges {
13947 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
13948 marked_range.start.0 += relative_range_utf16.start;
13949 marked_range.start =
13950 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
13951 marked_range.end =
13952 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
13953 }
13954 }
13955 Some(marked_ranges)
13956 } else if let Some(range_utf16) = range_utf16 {
13957 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13958 Some(this.selection_replacement_ranges(range_utf16, cx))
13959 } else {
13960 None
13961 };
13962
13963 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
13964 let newest_selection_id = this.selections.newest_anchor().id;
13965 this.selections
13966 .all::<OffsetUtf16>(cx)
13967 .iter()
13968 .zip(ranges_to_replace.iter())
13969 .find_map(|(selection, range)| {
13970 if selection.id == newest_selection_id {
13971 Some(
13972 (range.start.0 as isize - selection.head().0 as isize)
13973 ..(range.end.0 as isize - selection.head().0 as isize),
13974 )
13975 } else {
13976 None
13977 }
13978 })
13979 });
13980
13981 cx.emit(EditorEvent::InputHandled {
13982 utf16_range_to_replace: range_to_replace,
13983 text: text.into(),
13984 });
13985
13986 if let Some(ranges) = ranges_to_replace {
13987 this.change_selections(None, cx, |s| s.select_ranges(ranges));
13988 }
13989
13990 let marked_ranges = {
13991 let snapshot = this.buffer.read(cx).read(cx);
13992 this.selections
13993 .disjoint_anchors()
13994 .iter()
13995 .map(|selection| {
13996 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
13997 })
13998 .collect::<Vec<_>>()
13999 };
14000
14001 if text.is_empty() {
14002 this.unmark_text(cx);
14003 } else {
14004 this.highlight_text::<InputComposition>(
14005 marked_ranges.clone(),
14006 HighlightStyle {
14007 underline: Some(UnderlineStyle {
14008 thickness: px(1.),
14009 color: None,
14010 wavy: false,
14011 }),
14012 ..Default::default()
14013 },
14014 cx,
14015 );
14016 }
14017
14018 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14019 let use_autoclose = this.use_autoclose;
14020 let use_auto_surround = this.use_auto_surround;
14021 this.set_use_autoclose(false);
14022 this.set_use_auto_surround(false);
14023 this.handle_input(text, cx);
14024 this.set_use_autoclose(use_autoclose);
14025 this.set_use_auto_surround(use_auto_surround);
14026
14027 if let Some(new_selected_range) = new_selected_range_utf16 {
14028 let snapshot = this.buffer.read(cx).read(cx);
14029 let new_selected_ranges = marked_ranges
14030 .into_iter()
14031 .map(|marked_range| {
14032 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14033 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14034 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14035 snapshot.clip_offset_utf16(new_start, Bias::Left)
14036 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14037 })
14038 .collect::<Vec<_>>();
14039
14040 drop(snapshot);
14041 this.change_selections(None, cx, |selections| {
14042 selections.select_ranges(new_selected_ranges)
14043 });
14044 }
14045 });
14046
14047 self.ime_transaction = self.ime_transaction.or(transaction);
14048 if let Some(transaction) = self.ime_transaction {
14049 self.buffer.update(cx, |buffer, cx| {
14050 buffer.group_until_transaction(transaction, cx);
14051 });
14052 }
14053
14054 if self.text_highlights::<InputComposition>(cx).is_none() {
14055 self.ime_transaction.take();
14056 }
14057 }
14058
14059 fn bounds_for_range(
14060 &mut self,
14061 range_utf16: Range<usize>,
14062 element_bounds: gpui::Bounds<Pixels>,
14063 cx: &mut ViewContext<Self>,
14064 ) -> Option<gpui::Bounds<Pixels>> {
14065 let text_layout_details = self.text_layout_details(cx);
14066 let gpui::Point {
14067 x: em_width,
14068 y: line_height,
14069 } = self.character_size(cx);
14070
14071 let snapshot = self.snapshot(cx);
14072 let scroll_position = snapshot.scroll_position();
14073 let scroll_left = scroll_position.x * em_width;
14074
14075 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14076 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14077 + self.gutter_dimensions.width
14078 + self.gutter_dimensions.margin;
14079 let y = line_height * (start.row().as_f32() - scroll_position.y);
14080
14081 Some(Bounds {
14082 origin: element_bounds.origin + point(x, y),
14083 size: size(em_width, line_height),
14084 })
14085 }
14086}
14087
14088trait SelectionExt {
14089 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14090 fn spanned_rows(
14091 &self,
14092 include_end_if_at_line_start: bool,
14093 map: &DisplaySnapshot,
14094 ) -> Range<MultiBufferRow>;
14095}
14096
14097impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14098 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14099 let start = self
14100 .start
14101 .to_point(&map.buffer_snapshot)
14102 .to_display_point(map);
14103 let end = self
14104 .end
14105 .to_point(&map.buffer_snapshot)
14106 .to_display_point(map);
14107 if self.reversed {
14108 end..start
14109 } else {
14110 start..end
14111 }
14112 }
14113
14114 fn spanned_rows(
14115 &self,
14116 include_end_if_at_line_start: bool,
14117 map: &DisplaySnapshot,
14118 ) -> Range<MultiBufferRow> {
14119 let start = self.start.to_point(&map.buffer_snapshot);
14120 let mut end = self.end.to_point(&map.buffer_snapshot);
14121 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14122 end.row -= 1;
14123 }
14124
14125 let buffer_start = map.prev_line_boundary(start).0;
14126 let buffer_end = map.next_line_boundary(end).0;
14127 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14128 }
14129}
14130
14131impl<T: InvalidationRegion> InvalidationStack<T> {
14132 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14133 where
14134 S: Clone + ToOffset,
14135 {
14136 while let Some(region) = self.last() {
14137 let all_selections_inside_invalidation_ranges =
14138 if selections.len() == region.ranges().len() {
14139 selections
14140 .iter()
14141 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14142 .all(|(selection, invalidation_range)| {
14143 let head = selection.head().to_offset(buffer);
14144 invalidation_range.start <= head && invalidation_range.end >= head
14145 })
14146 } else {
14147 false
14148 };
14149
14150 if all_selections_inside_invalidation_ranges {
14151 break;
14152 } else {
14153 self.pop();
14154 }
14155 }
14156 }
14157}
14158
14159impl<T> Default for InvalidationStack<T> {
14160 fn default() -> Self {
14161 Self(Default::default())
14162 }
14163}
14164
14165impl<T> Deref for InvalidationStack<T> {
14166 type Target = Vec<T>;
14167
14168 fn deref(&self) -> &Self::Target {
14169 &self.0
14170 }
14171}
14172
14173impl<T> DerefMut for InvalidationStack<T> {
14174 fn deref_mut(&mut self) -> &mut Self::Target {
14175 &mut self.0
14176 }
14177}
14178
14179impl InvalidationRegion for SnippetState {
14180 fn ranges(&self) -> &[Range<Anchor>] {
14181 &self.ranges[self.active_index]
14182 }
14183}
14184
14185pub fn diagnostic_block_renderer(
14186 diagnostic: Diagnostic,
14187 max_message_rows: Option<u8>,
14188 allow_closing: bool,
14189 _is_valid: bool,
14190) -> RenderBlock {
14191 let (text_without_backticks, code_ranges) =
14192 highlight_diagnostic_message(&diagnostic, max_message_rows);
14193
14194 Arc::new(move |cx: &mut BlockContext| {
14195 let group_id: SharedString = cx.block_id.to_string().into();
14196
14197 let mut text_style = cx.text_style().clone();
14198 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14199 let theme_settings = ThemeSettings::get_global(cx);
14200 text_style.font_family = theme_settings.buffer_font.family.clone();
14201 text_style.font_style = theme_settings.buffer_font.style;
14202 text_style.font_features = theme_settings.buffer_font.features.clone();
14203 text_style.font_weight = theme_settings.buffer_font.weight;
14204
14205 let multi_line_diagnostic = diagnostic.message.contains('\n');
14206
14207 let buttons = |diagnostic: &Diagnostic| {
14208 if multi_line_diagnostic {
14209 v_flex()
14210 } else {
14211 h_flex()
14212 }
14213 .when(allow_closing, |div| {
14214 div.children(diagnostic.is_primary.then(|| {
14215 IconButton::new("close-block", IconName::XCircle)
14216 .icon_color(Color::Muted)
14217 .size(ButtonSize::Compact)
14218 .style(ButtonStyle::Transparent)
14219 .visible_on_hover(group_id.clone())
14220 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14221 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14222 }))
14223 })
14224 .child(
14225 IconButton::new("copy-block", IconName::Copy)
14226 .icon_color(Color::Muted)
14227 .size(ButtonSize::Compact)
14228 .style(ButtonStyle::Transparent)
14229 .visible_on_hover(group_id.clone())
14230 .on_click({
14231 let message = diagnostic.message.clone();
14232 move |_click, cx| {
14233 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14234 }
14235 })
14236 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14237 )
14238 };
14239
14240 let icon_size = buttons(&diagnostic)
14241 .into_any_element()
14242 .layout_as_root(AvailableSpace::min_size(), cx);
14243
14244 h_flex()
14245 .id(cx.block_id)
14246 .group(group_id.clone())
14247 .relative()
14248 .size_full()
14249 .block_mouse_down()
14250 .pl(cx.gutter_dimensions.width)
14251 .w(cx.max_width - cx.gutter_dimensions.full_width())
14252 .child(
14253 div()
14254 .flex()
14255 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14256 .flex_shrink(),
14257 )
14258 .child(buttons(&diagnostic))
14259 .child(div().flex().flex_shrink_0().child(
14260 StyledText::new(text_without_backticks.clone()).with_highlights(
14261 &text_style,
14262 code_ranges.iter().map(|range| {
14263 (
14264 range.clone(),
14265 HighlightStyle {
14266 font_weight: Some(FontWeight::BOLD),
14267 ..Default::default()
14268 },
14269 )
14270 }),
14271 ),
14272 ))
14273 .into_any_element()
14274 })
14275}
14276
14277pub fn highlight_diagnostic_message(
14278 diagnostic: &Diagnostic,
14279 mut max_message_rows: Option<u8>,
14280) -> (SharedString, Vec<Range<usize>>) {
14281 let mut text_without_backticks = String::new();
14282 let mut code_ranges = Vec::new();
14283
14284 if let Some(source) = &diagnostic.source {
14285 text_without_backticks.push_str(source);
14286 code_ranges.push(0..source.len());
14287 text_without_backticks.push_str(": ");
14288 }
14289
14290 let mut prev_offset = 0;
14291 let mut in_code_block = false;
14292 let has_row_limit = max_message_rows.is_some();
14293 let mut newline_indices = diagnostic
14294 .message
14295 .match_indices('\n')
14296 .filter(|_| has_row_limit)
14297 .map(|(ix, _)| ix)
14298 .fuse()
14299 .peekable();
14300
14301 for (quote_ix, _) in diagnostic
14302 .message
14303 .match_indices('`')
14304 .chain([(diagnostic.message.len(), "")])
14305 {
14306 let mut first_newline_ix = None;
14307 let mut last_newline_ix = None;
14308 while let Some(newline_ix) = newline_indices.peek() {
14309 if *newline_ix < quote_ix {
14310 if first_newline_ix.is_none() {
14311 first_newline_ix = Some(*newline_ix);
14312 }
14313 last_newline_ix = Some(*newline_ix);
14314
14315 if let Some(rows_left) = &mut max_message_rows {
14316 if *rows_left == 0 {
14317 break;
14318 } else {
14319 *rows_left -= 1;
14320 }
14321 }
14322 let _ = newline_indices.next();
14323 } else {
14324 break;
14325 }
14326 }
14327 let prev_len = text_without_backticks.len();
14328 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14329 text_without_backticks.push_str(new_text);
14330 if in_code_block {
14331 code_ranges.push(prev_len..text_without_backticks.len());
14332 }
14333 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14334 in_code_block = !in_code_block;
14335 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14336 text_without_backticks.push_str("...");
14337 break;
14338 }
14339 }
14340
14341 (text_without_backticks.into(), code_ranges)
14342}
14343
14344fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14345 match severity {
14346 DiagnosticSeverity::ERROR => colors.error,
14347 DiagnosticSeverity::WARNING => colors.warning,
14348 DiagnosticSeverity::INFORMATION => colors.info,
14349 DiagnosticSeverity::HINT => colors.info,
14350 _ => colors.ignored,
14351 }
14352}
14353
14354pub fn styled_runs_for_code_label<'a>(
14355 label: &'a CodeLabel,
14356 syntax_theme: &'a theme::SyntaxTheme,
14357) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14358 let fade_out = HighlightStyle {
14359 fade_out: Some(0.35),
14360 ..Default::default()
14361 };
14362
14363 let mut prev_end = label.filter_range.end;
14364 label
14365 .runs
14366 .iter()
14367 .enumerate()
14368 .flat_map(move |(ix, (range, highlight_id))| {
14369 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14370 style
14371 } else {
14372 return Default::default();
14373 };
14374 let mut muted_style = style;
14375 muted_style.highlight(fade_out);
14376
14377 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14378 if range.start >= label.filter_range.end {
14379 if range.start > prev_end {
14380 runs.push((prev_end..range.start, fade_out));
14381 }
14382 runs.push((range.clone(), muted_style));
14383 } else if range.end <= label.filter_range.end {
14384 runs.push((range.clone(), style));
14385 } else {
14386 runs.push((range.start..label.filter_range.end, style));
14387 runs.push((label.filter_range.end..range.end, muted_style));
14388 }
14389 prev_end = cmp::max(prev_end, range.end);
14390
14391 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14392 runs.push((prev_end..label.text.len(), fade_out));
14393 }
14394
14395 runs
14396 })
14397}
14398
14399pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14400 let mut prev_index = 0;
14401 let mut prev_codepoint: Option<char> = None;
14402 text.char_indices()
14403 .chain([(text.len(), '\0')])
14404 .filter_map(move |(index, codepoint)| {
14405 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14406 let is_boundary = index == text.len()
14407 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14408 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14409 if is_boundary {
14410 let chunk = &text[prev_index..index];
14411 prev_index = index;
14412 Some(chunk)
14413 } else {
14414 None
14415 }
14416 })
14417}
14418
14419pub trait RangeToAnchorExt: Sized {
14420 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14421
14422 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14423 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14424 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14425 }
14426}
14427
14428impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14429 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14430 let start_offset = self.start.to_offset(snapshot);
14431 let end_offset = self.end.to_offset(snapshot);
14432 if start_offset == end_offset {
14433 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14434 } else {
14435 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14436 }
14437 }
14438}
14439
14440pub trait RowExt {
14441 fn as_f32(&self) -> f32;
14442
14443 fn next_row(&self) -> Self;
14444
14445 fn previous_row(&self) -> Self;
14446
14447 fn minus(&self, other: Self) -> u32;
14448}
14449
14450impl RowExt for DisplayRow {
14451 fn as_f32(&self) -> f32 {
14452 self.0 as f32
14453 }
14454
14455 fn next_row(&self) -> Self {
14456 Self(self.0 + 1)
14457 }
14458
14459 fn previous_row(&self) -> Self {
14460 Self(self.0.saturating_sub(1))
14461 }
14462
14463 fn minus(&self, other: Self) -> u32 {
14464 self.0 - other.0
14465 }
14466}
14467
14468impl RowExt for MultiBufferRow {
14469 fn as_f32(&self) -> f32 {
14470 self.0 as f32
14471 }
14472
14473 fn next_row(&self) -> Self {
14474 Self(self.0 + 1)
14475 }
14476
14477 fn previous_row(&self) -> Self {
14478 Self(self.0.saturating_sub(1))
14479 }
14480
14481 fn minus(&self, other: Self) -> u32 {
14482 self.0 - other.0
14483 }
14484}
14485
14486trait RowRangeExt {
14487 type Row;
14488
14489 fn len(&self) -> usize;
14490
14491 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14492}
14493
14494impl RowRangeExt for Range<MultiBufferRow> {
14495 type Row = MultiBufferRow;
14496
14497 fn len(&self) -> usize {
14498 (self.end.0 - self.start.0) as usize
14499 }
14500
14501 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14502 (self.start.0..self.end.0).map(MultiBufferRow)
14503 }
14504}
14505
14506impl RowRangeExt for Range<DisplayRow> {
14507 type Row = DisplayRow;
14508
14509 fn len(&self) -> usize {
14510 (self.end.0 - self.start.0) as usize
14511 }
14512
14513 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14514 (self.start.0..self.end.0).map(DisplayRow)
14515 }
14516}
14517
14518fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14519 if hunk.diff_base_byte_range.is_empty() {
14520 DiffHunkStatus::Added
14521 } else if hunk.row_range.is_empty() {
14522 DiffHunkStatus::Removed
14523 } else {
14524 DiffHunkStatus::Modified
14525 }
14526}
14527
14528/// If select range has more than one line, we
14529/// just point the cursor to range.start.
14530fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14531 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14532 range
14533 } else {
14534 range.start..range.start
14535 }
14536}
14537
14538pub struct KillRing(ClipboardItem);
14539impl Global for KillRing {}
14540
14541const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);