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 =
5275 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5276 };
5277
5278 (start_point..end_point, empty_str.clone())
5279 })
5280 .sorted_by_key(|(range, _)| range.start)
5281 .collect::<Vec<_>>();
5282 buffer.update(cx, |this, cx| {
5283 this.edit(edits, None, cx);
5284 })
5285 }
5286 this.refresh_inline_completion(true, false, cx);
5287 linked_editing_ranges::refresh_linked_ranges(this, cx);
5288 });
5289 }
5290
5291 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5292 self.transact(cx, |this, cx| {
5293 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5294 let line_mode = s.line_mode;
5295 s.move_with(|map, selection| {
5296 if selection.is_empty() && !line_mode {
5297 let cursor = movement::right(map, selection.head());
5298 selection.end = cursor;
5299 selection.reversed = true;
5300 selection.goal = SelectionGoal::None;
5301 }
5302 })
5303 });
5304 this.insert("", cx);
5305 this.refresh_inline_completion(true, false, cx);
5306 });
5307 }
5308
5309 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5310 if self.move_to_prev_snippet_tabstop(cx) {
5311 return;
5312 }
5313
5314 self.outdent(&Outdent, cx);
5315 }
5316
5317 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5318 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5319 return;
5320 }
5321
5322 let mut selections = self.selections.all_adjusted(cx);
5323 let buffer = self.buffer.read(cx);
5324 let snapshot = buffer.snapshot(cx);
5325 let rows_iter = selections.iter().map(|s| s.head().row);
5326 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5327
5328 let mut edits = Vec::new();
5329 let mut prev_edited_row = 0;
5330 let mut row_delta = 0;
5331 for selection in &mut selections {
5332 if selection.start.row != prev_edited_row {
5333 row_delta = 0;
5334 }
5335 prev_edited_row = selection.end.row;
5336
5337 // If the selection is non-empty, then increase the indentation of the selected lines.
5338 if !selection.is_empty() {
5339 row_delta =
5340 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5341 continue;
5342 }
5343
5344 // If the selection is empty and the cursor is in the leading whitespace before the
5345 // suggested indentation, then auto-indent the line.
5346 let cursor = selection.head();
5347 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5348 if let Some(suggested_indent) =
5349 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5350 {
5351 if cursor.column < suggested_indent.len
5352 && cursor.column <= current_indent.len
5353 && current_indent.len <= suggested_indent.len
5354 {
5355 selection.start = Point::new(cursor.row, suggested_indent.len);
5356 selection.end = selection.start;
5357 if row_delta == 0 {
5358 edits.extend(Buffer::edit_for_indent_size_adjustment(
5359 cursor.row,
5360 current_indent,
5361 suggested_indent,
5362 ));
5363 row_delta = suggested_indent.len - current_indent.len;
5364 }
5365 continue;
5366 }
5367 }
5368
5369 // Otherwise, insert a hard or soft tab.
5370 let settings = buffer.settings_at(cursor, cx);
5371 let tab_size = if settings.hard_tabs {
5372 IndentSize::tab()
5373 } else {
5374 let tab_size = settings.tab_size.get();
5375 let char_column = snapshot
5376 .text_for_range(Point::new(cursor.row, 0)..cursor)
5377 .flat_map(str::chars)
5378 .count()
5379 + row_delta as usize;
5380 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5381 IndentSize::spaces(chars_to_next_tab_stop)
5382 };
5383 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5384 selection.end = selection.start;
5385 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5386 row_delta += tab_size.len;
5387 }
5388
5389 self.transact(cx, |this, cx| {
5390 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5391 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5392 this.refresh_inline_completion(true, false, cx);
5393 });
5394 }
5395
5396 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5397 if self.read_only(cx) {
5398 return;
5399 }
5400 let mut selections = self.selections.all::<Point>(cx);
5401 let mut prev_edited_row = 0;
5402 let mut row_delta = 0;
5403 let mut edits = Vec::new();
5404 let buffer = self.buffer.read(cx);
5405 let snapshot = buffer.snapshot(cx);
5406 for selection in &mut selections {
5407 if selection.start.row != prev_edited_row {
5408 row_delta = 0;
5409 }
5410 prev_edited_row = selection.end.row;
5411
5412 row_delta =
5413 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5414 }
5415
5416 self.transact(cx, |this, cx| {
5417 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5418 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5419 });
5420 }
5421
5422 fn indent_selection(
5423 buffer: &MultiBuffer,
5424 snapshot: &MultiBufferSnapshot,
5425 selection: &mut Selection<Point>,
5426 edits: &mut Vec<(Range<Point>, String)>,
5427 delta_for_start_row: u32,
5428 cx: &AppContext,
5429 ) -> u32 {
5430 let settings = buffer.settings_at(selection.start, cx);
5431 let tab_size = settings.tab_size.get();
5432 let indent_kind = if settings.hard_tabs {
5433 IndentKind::Tab
5434 } else {
5435 IndentKind::Space
5436 };
5437 let mut start_row = selection.start.row;
5438 let mut end_row = selection.end.row + 1;
5439
5440 // If a selection ends at the beginning of a line, don't indent
5441 // that last line.
5442 if selection.end.column == 0 && selection.end.row > selection.start.row {
5443 end_row -= 1;
5444 }
5445
5446 // Avoid re-indenting a row that has already been indented by a
5447 // previous selection, but still update this selection's column
5448 // to reflect that indentation.
5449 if delta_for_start_row > 0 {
5450 start_row += 1;
5451 selection.start.column += delta_for_start_row;
5452 if selection.end.row == selection.start.row {
5453 selection.end.column += delta_for_start_row;
5454 }
5455 }
5456
5457 let mut delta_for_end_row = 0;
5458 let has_multiple_rows = start_row + 1 != end_row;
5459 for row in start_row..end_row {
5460 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5461 let indent_delta = match (current_indent.kind, indent_kind) {
5462 (IndentKind::Space, IndentKind::Space) => {
5463 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5464 IndentSize::spaces(columns_to_next_tab_stop)
5465 }
5466 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5467 (_, IndentKind::Tab) => IndentSize::tab(),
5468 };
5469
5470 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5471 0
5472 } else {
5473 selection.start.column
5474 };
5475 let row_start = Point::new(row, start);
5476 edits.push((
5477 row_start..row_start,
5478 indent_delta.chars().collect::<String>(),
5479 ));
5480
5481 // Update this selection's endpoints to reflect the indentation.
5482 if row == selection.start.row {
5483 selection.start.column += indent_delta.len;
5484 }
5485 if row == selection.end.row {
5486 selection.end.column += indent_delta.len;
5487 delta_for_end_row = indent_delta.len;
5488 }
5489 }
5490
5491 if selection.start.row == selection.end.row {
5492 delta_for_start_row + delta_for_end_row
5493 } else {
5494 delta_for_end_row
5495 }
5496 }
5497
5498 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5499 if self.read_only(cx) {
5500 return;
5501 }
5502 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5503 let selections = self.selections.all::<Point>(cx);
5504 let mut deletion_ranges = Vec::new();
5505 let mut last_outdent = None;
5506 {
5507 let buffer = self.buffer.read(cx);
5508 let snapshot = buffer.snapshot(cx);
5509 for selection in &selections {
5510 let settings = buffer.settings_at(selection.start, cx);
5511 let tab_size = settings.tab_size.get();
5512 let mut rows = selection.spanned_rows(false, &display_map);
5513
5514 // Avoid re-outdenting a row that has already been outdented by a
5515 // previous selection.
5516 if let Some(last_row) = last_outdent {
5517 if last_row == rows.start {
5518 rows.start = rows.start.next_row();
5519 }
5520 }
5521 let has_multiple_rows = rows.len() > 1;
5522 for row in rows.iter_rows() {
5523 let indent_size = snapshot.indent_size_for_line(row);
5524 if indent_size.len > 0 {
5525 let deletion_len = match indent_size.kind {
5526 IndentKind::Space => {
5527 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5528 if columns_to_prev_tab_stop == 0 {
5529 tab_size
5530 } else {
5531 columns_to_prev_tab_stop
5532 }
5533 }
5534 IndentKind::Tab => 1,
5535 };
5536 let start = if has_multiple_rows
5537 || deletion_len > selection.start.column
5538 || indent_size.len < selection.start.column
5539 {
5540 0
5541 } else {
5542 selection.start.column - deletion_len
5543 };
5544 deletion_ranges.push(
5545 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5546 );
5547 last_outdent = Some(row);
5548 }
5549 }
5550 }
5551 }
5552
5553 self.transact(cx, |this, cx| {
5554 this.buffer.update(cx, |buffer, cx| {
5555 let empty_str: Arc<str> = Arc::default();
5556 buffer.edit(
5557 deletion_ranges
5558 .into_iter()
5559 .map(|range| (range, empty_str.clone())),
5560 None,
5561 cx,
5562 );
5563 });
5564 let selections = this.selections.all::<usize>(cx);
5565 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5566 });
5567 }
5568
5569 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5570 if self.read_only(cx) {
5571 return;
5572 }
5573 let selections = self
5574 .selections
5575 .all::<usize>(cx)
5576 .into_iter()
5577 .map(|s| s.range());
5578
5579 self.transact(cx, |this, cx| {
5580 this.buffer.update(cx, |buffer, cx| {
5581 buffer.autoindent_ranges(selections, cx);
5582 });
5583 let selections = this.selections.all::<usize>(cx);
5584 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5585 });
5586 }
5587
5588 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5589 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5590 let selections = self.selections.all::<Point>(cx);
5591
5592 let mut new_cursors = Vec::new();
5593 let mut edit_ranges = Vec::new();
5594 let mut selections = selections.iter().peekable();
5595 while let Some(selection) = selections.next() {
5596 let mut rows = selection.spanned_rows(false, &display_map);
5597 let goal_display_column = selection.head().to_display_point(&display_map).column();
5598
5599 // Accumulate contiguous regions of rows that we want to delete.
5600 while let Some(next_selection) = selections.peek() {
5601 let next_rows = next_selection.spanned_rows(false, &display_map);
5602 if next_rows.start <= rows.end {
5603 rows.end = next_rows.end;
5604 selections.next().unwrap();
5605 } else {
5606 break;
5607 }
5608 }
5609
5610 let buffer = &display_map.buffer_snapshot;
5611 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5612 let edit_end;
5613 let cursor_buffer_row;
5614 if buffer.max_point().row >= rows.end.0 {
5615 // If there's a line after the range, delete the \n from the end of the row range
5616 // and position the cursor on the next line.
5617 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5618 cursor_buffer_row = rows.end;
5619 } else {
5620 // If there isn't a line after the range, delete the \n from the line before the
5621 // start of the row range and position the cursor there.
5622 edit_start = edit_start.saturating_sub(1);
5623 edit_end = buffer.len();
5624 cursor_buffer_row = rows.start.previous_row();
5625 }
5626
5627 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5628 *cursor.column_mut() =
5629 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5630
5631 new_cursors.push((
5632 selection.id,
5633 buffer.anchor_after(cursor.to_point(&display_map)),
5634 ));
5635 edit_ranges.push(edit_start..edit_end);
5636 }
5637
5638 self.transact(cx, |this, cx| {
5639 let buffer = this.buffer.update(cx, |buffer, cx| {
5640 let empty_str: Arc<str> = Arc::default();
5641 buffer.edit(
5642 edit_ranges
5643 .into_iter()
5644 .map(|range| (range, empty_str.clone())),
5645 None,
5646 cx,
5647 );
5648 buffer.snapshot(cx)
5649 });
5650 let new_selections = new_cursors
5651 .into_iter()
5652 .map(|(id, cursor)| {
5653 let cursor = cursor.to_point(&buffer);
5654 Selection {
5655 id,
5656 start: cursor,
5657 end: cursor,
5658 reversed: false,
5659 goal: SelectionGoal::None,
5660 }
5661 })
5662 .collect();
5663
5664 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5665 s.select(new_selections);
5666 });
5667 });
5668 }
5669
5670 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5671 if self.read_only(cx) {
5672 return;
5673 }
5674 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5675 for selection in self.selections.all::<Point>(cx) {
5676 let start = MultiBufferRow(selection.start.row);
5677 // Treat single line selections as if they include the next line. Otherwise this action
5678 // would do nothing for single line selections individual cursors.
5679 let end = if selection.start.row == selection.end.row {
5680 MultiBufferRow(selection.start.row + 1)
5681 } else {
5682 MultiBufferRow(selection.end.row)
5683 };
5684
5685 if let Some(last_row_range) = row_ranges.last_mut() {
5686 if start <= last_row_range.end {
5687 last_row_range.end = end;
5688 continue;
5689 }
5690 }
5691 row_ranges.push(start..end);
5692 }
5693
5694 let snapshot = self.buffer.read(cx).snapshot(cx);
5695 let mut cursor_positions = Vec::new();
5696 for row_range in &row_ranges {
5697 let anchor = snapshot.anchor_before(Point::new(
5698 row_range.end.previous_row().0,
5699 snapshot.line_len(row_range.end.previous_row()),
5700 ));
5701 cursor_positions.push(anchor..anchor);
5702 }
5703
5704 self.transact(cx, |this, cx| {
5705 for row_range in row_ranges.into_iter().rev() {
5706 for row in row_range.iter_rows().rev() {
5707 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5708 let next_line_row = row.next_row();
5709 let indent = snapshot.indent_size_for_line(next_line_row);
5710 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5711
5712 let replace = if snapshot.line_len(next_line_row) > indent.len {
5713 " "
5714 } else {
5715 ""
5716 };
5717
5718 this.buffer.update(cx, |buffer, cx| {
5719 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5720 });
5721 }
5722 }
5723
5724 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5725 s.select_anchor_ranges(cursor_positions)
5726 });
5727 });
5728 }
5729
5730 pub fn sort_lines_case_sensitive(
5731 &mut self,
5732 _: &SortLinesCaseSensitive,
5733 cx: &mut ViewContext<Self>,
5734 ) {
5735 self.manipulate_lines(cx, |lines| lines.sort())
5736 }
5737
5738 pub fn sort_lines_case_insensitive(
5739 &mut self,
5740 _: &SortLinesCaseInsensitive,
5741 cx: &mut ViewContext<Self>,
5742 ) {
5743 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5744 }
5745
5746 pub fn unique_lines_case_insensitive(
5747 &mut self,
5748 _: &UniqueLinesCaseInsensitive,
5749 cx: &mut ViewContext<Self>,
5750 ) {
5751 self.manipulate_lines(cx, |lines| {
5752 let mut seen = HashSet::default();
5753 lines.retain(|line| seen.insert(line.to_lowercase()));
5754 })
5755 }
5756
5757 pub fn unique_lines_case_sensitive(
5758 &mut self,
5759 _: &UniqueLinesCaseSensitive,
5760 cx: &mut ViewContext<Self>,
5761 ) {
5762 self.manipulate_lines(cx, |lines| {
5763 let mut seen = HashSet::default();
5764 lines.retain(|line| seen.insert(*line));
5765 })
5766 }
5767
5768 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
5769 let mut revert_changes = HashMap::default();
5770 let snapshot = self.snapshot(cx);
5771 for hunk in hunks_for_ranges(
5772 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
5773 &snapshot,
5774 ) {
5775 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5776 }
5777 if !revert_changes.is_empty() {
5778 self.transact(cx, |editor, cx| {
5779 editor.revert(revert_changes, cx);
5780 });
5781 }
5782 }
5783
5784 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
5785 let Some(project) = self.project.clone() else {
5786 return;
5787 };
5788 self.reload(project, cx).detach_and_notify_err(cx);
5789 }
5790
5791 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5792 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
5793 if !revert_changes.is_empty() {
5794 self.transact(cx, |editor, cx| {
5795 editor.revert(revert_changes, cx);
5796 });
5797 }
5798 }
5799
5800 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
5801 let snapshot = self.buffer.read(cx).read(cx);
5802 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
5803 drop(snapshot);
5804 let mut revert_changes = HashMap::default();
5805 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5806 if !revert_changes.is_empty() {
5807 self.revert(revert_changes, cx)
5808 }
5809 }
5810 }
5811
5812 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5813 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5814 let project_path = buffer.read(cx).project_path(cx)?;
5815 let project = self.project.as_ref()?.read(cx);
5816 let entry = project.entry_for_path(&project_path, cx)?;
5817 let parent = match &entry.canonical_path {
5818 Some(canonical_path) => canonical_path.to_path_buf(),
5819 None => project.absolute_path(&project_path, cx)?,
5820 }
5821 .parent()?
5822 .to_path_buf();
5823 Some(parent)
5824 }) {
5825 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5826 }
5827 }
5828
5829 fn gather_revert_changes(
5830 &mut self,
5831 selections: &[Selection<Point>],
5832 cx: &mut ViewContext<'_, Editor>,
5833 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5834 let mut revert_changes = HashMap::default();
5835 let snapshot = self.snapshot(cx);
5836 for hunk in hunks_for_selections(&snapshot, selections) {
5837 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5838 }
5839 revert_changes
5840 }
5841
5842 pub fn prepare_revert_change(
5843 &mut self,
5844 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5845 hunk: &MultiBufferDiffHunk,
5846 cx: &AppContext,
5847 ) -> Option<()> {
5848 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
5849 let buffer = buffer.read(cx);
5850 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
5851 let original_text = change_set
5852 .read(cx)
5853 .base_text
5854 .as_ref()?
5855 .read(cx)
5856 .as_rope()
5857 .slice(hunk.diff_base_byte_range.clone());
5858 let buffer_snapshot = buffer.snapshot();
5859 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5860 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5861 probe
5862 .0
5863 .start
5864 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5865 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5866 }) {
5867 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5868 Some(())
5869 } else {
5870 None
5871 }
5872 }
5873
5874 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5875 self.manipulate_lines(cx, |lines| lines.reverse())
5876 }
5877
5878 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5879 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5880 }
5881
5882 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5883 where
5884 Fn: FnMut(&mut Vec<&str>),
5885 {
5886 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5887 let buffer = self.buffer.read(cx).snapshot(cx);
5888
5889 let mut edits = Vec::new();
5890
5891 let selections = self.selections.all::<Point>(cx);
5892 let mut selections = selections.iter().peekable();
5893 let mut contiguous_row_selections = Vec::new();
5894 let mut new_selections = Vec::new();
5895 let mut added_lines = 0;
5896 let mut removed_lines = 0;
5897
5898 while let Some(selection) = selections.next() {
5899 let (start_row, end_row) = consume_contiguous_rows(
5900 &mut contiguous_row_selections,
5901 selection,
5902 &display_map,
5903 &mut selections,
5904 );
5905
5906 let start_point = Point::new(start_row.0, 0);
5907 let end_point = Point::new(
5908 end_row.previous_row().0,
5909 buffer.line_len(end_row.previous_row()),
5910 );
5911 let text = buffer
5912 .text_for_range(start_point..end_point)
5913 .collect::<String>();
5914
5915 let mut lines = text.split('\n').collect_vec();
5916
5917 let lines_before = lines.len();
5918 callback(&mut lines);
5919 let lines_after = lines.len();
5920
5921 edits.push((start_point..end_point, lines.join("\n")));
5922
5923 // Selections must change based on added and removed line count
5924 let start_row =
5925 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5926 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5927 new_selections.push(Selection {
5928 id: selection.id,
5929 start: start_row,
5930 end: end_row,
5931 goal: SelectionGoal::None,
5932 reversed: selection.reversed,
5933 });
5934
5935 if lines_after > lines_before {
5936 added_lines += lines_after - lines_before;
5937 } else if lines_before > lines_after {
5938 removed_lines += lines_before - lines_after;
5939 }
5940 }
5941
5942 self.transact(cx, |this, cx| {
5943 let buffer = this.buffer.update(cx, |buffer, cx| {
5944 buffer.edit(edits, None, cx);
5945 buffer.snapshot(cx)
5946 });
5947
5948 // Recalculate offsets on newly edited buffer
5949 let new_selections = new_selections
5950 .iter()
5951 .map(|s| {
5952 let start_point = Point::new(s.start.0, 0);
5953 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5954 Selection {
5955 id: s.id,
5956 start: buffer.point_to_offset(start_point),
5957 end: buffer.point_to_offset(end_point),
5958 goal: s.goal,
5959 reversed: s.reversed,
5960 }
5961 })
5962 .collect();
5963
5964 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5965 s.select(new_selections);
5966 });
5967
5968 this.request_autoscroll(Autoscroll::fit(), cx);
5969 });
5970 }
5971
5972 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5973 self.manipulate_text(cx, |text| text.to_uppercase())
5974 }
5975
5976 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5977 self.manipulate_text(cx, |text| text.to_lowercase())
5978 }
5979
5980 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5981 self.manipulate_text(cx, |text| {
5982 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5983 // https://github.com/rutrum/convert-case/issues/16
5984 text.split('\n')
5985 .map(|line| line.to_case(Case::Title))
5986 .join("\n")
5987 })
5988 }
5989
5990 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5991 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5992 }
5993
5994 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5995 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5996 }
5997
5998 pub fn convert_to_upper_camel_case(
5999 &mut self,
6000 _: &ConvertToUpperCamelCase,
6001 cx: &mut ViewContext<Self>,
6002 ) {
6003 self.manipulate_text(cx, |text| {
6004 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6005 // https://github.com/rutrum/convert-case/issues/16
6006 text.split('\n')
6007 .map(|line| line.to_case(Case::UpperCamel))
6008 .join("\n")
6009 })
6010 }
6011
6012 pub fn convert_to_lower_camel_case(
6013 &mut self,
6014 _: &ConvertToLowerCamelCase,
6015 cx: &mut ViewContext<Self>,
6016 ) {
6017 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6018 }
6019
6020 pub fn convert_to_opposite_case(
6021 &mut self,
6022 _: &ConvertToOppositeCase,
6023 cx: &mut ViewContext<Self>,
6024 ) {
6025 self.manipulate_text(cx, |text| {
6026 text.chars()
6027 .fold(String::with_capacity(text.len()), |mut t, c| {
6028 if c.is_uppercase() {
6029 t.extend(c.to_lowercase());
6030 } else {
6031 t.extend(c.to_uppercase());
6032 }
6033 t
6034 })
6035 })
6036 }
6037
6038 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6039 where
6040 Fn: FnMut(&str) -> String,
6041 {
6042 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6043 let buffer = self.buffer.read(cx).snapshot(cx);
6044
6045 let mut new_selections = Vec::new();
6046 let mut edits = Vec::new();
6047 let mut selection_adjustment = 0i32;
6048
6049 for selection in self.selections.all::<usize>(cx) {
6050 let selection_is_empty = selection.is_empty();
6051
6052 let (start, end) = if selection_is_empty {
6053 let word_range = movement::surrounding_word(
6054 &display_map,
6055 selection.start.to_display_point(&display_map),
6056 );
6057 let start = word_range.start.to_offset(&display_map, Bias::Left);
6058 let end = word_range.end.to_offset(&display_map, Bias::Left);
6059 (start, end)
6060 } else {
6061 (selection.start, selection.end)
6062 };
6063
6064 let text = buffer.text_for_range(start..end).collect::<String>();
6065 let old_length = text.len() as i32;
6066 let text = callback(&text);
6067
6068 new_selections.push(Selection {
6069 start: (start as i32 - selection_adjustment) as usize,
6070 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6071 goal: SelectionGoal::None,
6072 ..selection
6073 });
6074
6075 selection_adjustment += old_length - text.len() as i32;
6076
6077 edits.push((start..end, text));
6078 }
6079
6080 self.transact(cx, |this, cx| {
6081 this.buffer.update(cx, |buffer, cx| {
6082 buffer.edit(edits, None, cx);
6083 });
6084
6085 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6086 s.select(new_selections);
6087 });
6088
6089 this.request_autoscroll(Autoscroll::fit(), cx);
6090 });
6091 }
6092
6093 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6094 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6095 let buffer = &display_map.buffer_snapshot;
6096 let selections = self.selections.all::<Point>(cx);
6097
6098 let mut edits = Vec::new();
6099 let mut selections_iter = selections.iter().peekable();
6100 while let Some(selection) = selections_iter.next() {
6101 // Avoid duplicating the same lines twice.
6102 let mut rows = selection.spanned_rows(false, &display_map);
6103
6104 while let Some(next_selection) = selections_iter.peek() {
6105 let next_rows = next_selection.spanned_rows(false, &display_map);
6106 if next_rows.start < rows.end {
6107 rows.end = next_rows.end;
6108 selections_iter.next().unwrap();
6109 } else {
6110 break;
6111 }
6112 }
6113
6114 // Copy the text from the selected row region and splice it either at the start
6115 // or end of the region.
6116 let start = Point::new(rows.start.0, 0);
6117 let end = Point::new(
6118 rows.end.previous_row().0,
6119 buffer.line_len(rows.end.previous_row()),
6120 );
6121 let text = buffer
6122 .text_for_range(start..end)
6123 .chain(Some("\n"))
6124 .collect::<String>();
6125 let insert_location = if upwards {
6126 Point::new(rows.end.0, 0)
6127 } else {
6128 start
6129 };
6130 edits.push((insert_location..insert_location, text));
6131 }
6132
6133 self.transact(cx, |this, cx| {
6134 this.buffer.update(cx, |buffer, cx| {
6135 buffer.edit(edits, None, cx);
6136 });
6137
6138 this.request_autoscroll(Autoscroll::fit(), cx);
6139 });
6140 }
6141
6142 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6143 self.duplicate_line(true, cx);
6144 }
6145
6146 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6147 self.duplicate_line(false, cx);
6148 }
6149
6150 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6151 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6152 let buffer = self.buffer.read(cx).snapshot(cx);
6153
6154 let mut edits = Vec::new();
6155 let mut unfold_ranges = Vec::new();
6156 let mut refold_creases = Vec::new();
6157
6158 let selections = self.selections.all::<Point>(cx);
6159 let mut selections = selections.iter().peekable();
6160 let mut contiguous_row_selections = Vec::new();
6161 let mut new_selections = Vec::new();
6162
6163 while let Some(selection) = selections.next() {
6164 // Find all the selections that span a contiguous row range
6165 let (start_row, end_row) = consume_contiguous_rows(
6166 &mut contiguous_row_selections,
6167 selection,
6168 &display_map,
6169 &mut selections,
6170 );
6171
6172 // Move the text spanned by the row range to be before the line preceding the row range
6173 if start_row.0 > 0 {
6174 let range_to_move = Point::new(
6175 start_row.previous_row().0,
6176 buffer.line_len(start_row.previous_row()),
6177 )
6178 ..Point::new(
6179 end_row.previous_row().0,
6180 buffer.line_len(end_row.previous_row()),
6181 );
6182 let insertion_point = display_map
6183 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6184 .0;
6185
6186 // Don't move lines across excerpts
6187 if buffer
6188 .excerpt_boundaries_in_range((
6189 Bound::Excluded(insertion_point),
6190 Bound::Included(range_to_move.end),
6191 ))
6192 .next()
6193 .is_none()
6194 {
6195 let text = buffer
6196 .text_for_range(range_to_move.clone())
6197 .flat_map(|s| s.chars())
6198 .skip(1)
6199 .chain(['\n'])
6200 .collect::<String>();
6201
6202 edits.push((
6203 buffer.anchor_after(range_to_move.start)
6204 ..buffer.anchor_before(range_to_move.end),
6205 String::new(),
6206 ));
6207 let insertion_anchor = buffer.anchor_after(insertion_point);
6208 edits.push((insertion_anchor..insertion_anchor, text));
6209
6210 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6211
6212 // Move selections up
6213 new_selections.extend(contiguous_row_selections.drain(..).map(
6214 |mut selection| {
6215 selection.start.row -= row_delta;
6216 selection.end.row -= row_delta;
6217 selection
6218 },
6219 ));
6220
6221 // Move folds up
6222 unfold_ranges.push(range_to_move.clone());
6223 for fold in display_map.folds_in_range(
6224 buffer.anchor_before(range_to_move.start)
6225 ..buffer.anchor_after(range_to_move.end),
6226 ) {
6227 let mut start = fold.range.start.to_point(&buffer);
6228 let mut end = fold.range.end.to_point(&buffer);
6229 start.row -= row_delta;
6230 end.row -= row_delta;
6231 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6232 }
6233 }
6234 }
6235
6236 // If we didn't move line(s), preserve the existing selections
6237 new_selections.append(&mut contiguous_row_selections);
6238 }
6239
6240 self.transact(cx, |this, cx| {
6241 this.unfold_ranges(&unfold_ranges, true, true, cx);
6242 this.buffer.update(cx, |buffer, cx| {
6243 for (range, text) in edits {
6244 buffer.edit([(range, text)], None, cx);
6245 }
6246 });
6247 this.fold_creases(refold_creases, true, cx);
6248 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6249 s.select(new_selections);
6250 })
6251 });
6252 }
6253
6254 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6255 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6256 let buffer = self.buffer.read(cx).snapshot(cx);
6257
6258 let mut edits = Vec::new();
6259 let mut unfold_ranges = Vec::new();
6260 let mut refold_creases = Vec::new();
6261
6262 let selections = self.selections.all::<Point>(cx);
6263 let mut selections = selections.iter().peekable();
6264 let mut contiguous_row_selections = Vec::new();
6265 let mut new_selections = Vec::new();
6266
6267 while let Some(selection) = selections.next() {
6268 // Find all the selections that span a contiguous row range
6269 let (start_row, end_row) = consume_contiguous_rows(
6270 &mut contiguous_row_selections,
6271 selection,
6272 &display_map,
6273 &mut selections,
6274 );
6275
6276 // Move the text spanned by the row range to be after the last line of the row range
6277 if end_row.0 <= buffer.max_point().row {
6278 let range_to_move =
6279 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6280 let insertion_point = display_map
6281 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6282 .0;
6283
6284 // Don't move lines across excerpt boundaries
6285 if buffer
6286 .excerpt_boundaries_in_range((
6287 Bound::Excluded(range_to_move.start),
6288 Bound::Included(insertion_point),
6289 ))
6290 .next()
6291 .is_none()
6292 {
6293 let mut text = String::from("\n");
6294 text.extend(buffer.text_for_range(range_to_move.clone()));
6295 text.pop(); // Drop trailing newline
6296 edits.push((
6297 buffer.anchor_after(range_to_move.start)
6298 ..buffer.anchor_before(range_to_move.end),
6299 String::new(),
6300 ));
6301 let insertion_anchor = buffer.anchor_after(insertion_point);
6302 edits.push((insertion_anchor..insertion_anchor, text));
6303
6304 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6305
6306 // Move selections down
6307 new_selections.extend(contiguous_row_selections.drain(..).map(
6308 |mut selection| {
6309 selection.start.row += row_delta;
6310 selection.end.row += row_delta;
6311 selection
6312 },
6313 ));
6314
6315 // Move folds down
6316 unfold_ranges.push(range_to_move.clone());
6317 for fold in display_map.folds_in_range(
6318 buffer.anchor_before(range_to_move.start)
6319 ..buffer.anchor_after(range_to_move.end),
6320 ) {
6321 let mut start = fold.range.start.to_point(&buffer);
6322 let mut end = fold.range.end.to_point(&buffer);
6323 start.row += row_delta;
6324 end.row += row_delta;
6325 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6326 }
6327 }
6328 }
6329
6330 // If we didn't move line(s), preserve the existing selections
6331 new_selections.append(&mut contiguous_row_selections);
6332 }
6333
6334 self.transact(cx, |this, cx| {
6335 this.unfold_ranges(&unfold_ranges, true, true, cx);
6336 this.buffer.update(cx, |buffer, cx| {
6337 for (range, text) in edits {
6338 buffer.edit([(range, text)], None, cx);
6339 }
6340 });
6341 this.fold_creases(refold_creases, true, cx);
6342 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6343 });
6344 }
6345
6346 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6347 let text_layout_details = &self.text_layout_details(cx);
6348 self.transact(cx, |this, cx| {
6349 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6350 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6351 let line_mode = s.line_mode;
6352 s.move_with(|display_map, selection| {
6353 if !selection.is_empty() || line_mode {
6354 return;
6355 }
6356
6357 let mut head = selection.head();
6358 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6359 if head.column() == display_map.line_len(head.row()) {
6360 transpose_offset = display_map
6361 .buffer_snapshot
6362 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6363 }
6364
6365 if transpose_offset == 0 {
6366 return;
6367 }
6368
6369 *head.column_mut() += 1;
6370 head = display_map.clip_point(head, Bias::Right);
6371 let goal = SelectionGoal::HorizontalPosition(
6372 display_map
6373 .x_for_display_point(head, text_layout_details)
6374 .into(),
6375 );
6376 selection.collapse_to(head, goal);
6377
6378 let transpose_start = display_map
6379 .buffer_snapshot
6380 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6381 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6382 let transpose_end = display_map
6383 .buffer_snapshot
6384 .clip_offset(transpose_offset + 1, Bias::Right);
6385 if let Some(ch) =
6386 display_map.buffer_snapshot.chars_at(transpose_start).next()
6387 {
6388 edits.push((transpose_start..transpose_offset, String::new()));
6389 edits.push((transpose_end..transpose_end, ch.to_string()));
6390 }
6391 }
6392 });
6393 edits
6394 });
6395 this.buffer
6396 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6397 let selections = this.selections.all::<usize>(cx);
6398 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6399 s.select(selections);
6400 });
6401 });
6402 }
6403
6404 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6405 self.rewrap_impl(IsVimMode::No, cx)
6406 }
6407
6408 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6409 let buffer = self.buffer.read(cx).snapshot(cx);
6410 let selections = self.selections.all::<Point>(cx);
6411 let mut selections = selections.iter().peekable();
6412
6413 let mut edits = Vec::new();
6414 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6415
6416 while let Some(selection) = selections.next() {
6417 let mut start_row = selection.start.row;
6418 let mut end_row = selection.end.row;
6419
6420 // Skip selections that overlap with a range that has already been rewrapped.
6421 let selection_range = start_row..end_row;
6422 if rewrapped_row_ranges
6423 .iter()
6424 .any(|range| range.overlaps(&selection_range))
6425 {
6426 continue;
6427 }
6428
6429 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6430
6431 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6432 match language_scope.language_name().0.as_ref() {
6433 "Markdown" | "Plain Text" => {
6434 should_rewrap = true;
6435 }
6436 _ => {}
6437 }
6438 }
6439
6440 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6441
6442 // Since not all lines in the selection may be at the same indent
6443 // level, choose the indent size that is the most common between all
6444 // of the lines.
6445 //
6446 // If there is a tie, we use the deepest indent.
6447 let (indent_size, indent_end) = {
6448 let mut indent_size_occurrences = HashMap::default();
6449 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6450
6451 for row in start_row..=end_row {
6452 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6453 rows_by_indent_size.entry(indent).or_default().push(row);
6454 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6455 }
6456
6457 let indent_size = indent_size_occurrences
6458 .into_iter()
6459 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6460 .map(|(indent, _)| indent)
6461 .unwrap_or_default();
6462 let row = rows_by_indent_size[&indent_size][0];
6463 let indent_end = Point::new(row, indent_size.len);
6464
6465 (indent_size, indent_end)
6466 };
6467
6468 let mut line_prefix = indent_size.chars().collect::<String>();
6469
6470 if let Some(comment_prefix) =
6471 buffer
6472 .language_scope_at(selection.head())
6473 .and_then(|language| {
6474 language
6475 .line_comment_prefixes()
6476 .iter()
6477 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6478 .cloned()
6479 })
6480 {
6481 line_prefix.push_str(&comment_prefix);
6482 should_rewrap = true;
6483 }
6484
6485 if !should_rewrap {
6486 continue;
6487 }
6488
6489 if selection.is_empty() {
6490 'expand_upwards: while start_row > 0 {
6491 let prev_row = start_row - 1;
6492 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6493 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6494 {
6495 start_row = prev_row;
6496 } else {
6497 break 'expand_upwards;
6498 }
6499 }
6500
6501 'expand_downwards: while end_row < buffer.max_point().row {
6502 let next_row = end_row + 1;
6503 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6504 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6505 {
6506 end_row = next_row;
6507 } else {
6508 break 'expand_downwards;
6509 }
6510 }
6511 }
6512
6513 let start = Point::new(start_row, 0);
6514 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6515 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6516 let Some(lines_without_prefixes) = selection_text
6517 .lines()
6518 .map(|line| {
6519 line.strip_prefix(&line_prefix)
6520 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6521 .ok_or_else(|| {
6522 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6523 })
6524 })
6525 .collect::<Result<Vec<_>, _>>()
6526 .log_err()
6527 else {
6528 continue;
6529 };
6530
6531 let wrap_column = buffer
6532 .settings_at(Point::new(start_row, 0), cx)
6533 .preferred_line_length as usize;
6534 let wrapped_text = wrap_with_prefix(
6535 line_prefix,
6536 lines_without_prefixes.join(" "),
6537 wrap_column,
6538 tab_size,
6539 );
6540
6541 // TODO: should always use char-based diff while still supporting cursor behavior that
6542 // matches vim.
6543 let diff = match is_vim_mode {
6544 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6545 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6546 };
6547 let mut offset = start.to_offset(&buffer);
6548 let mut moved_since_edit = true;
6549
6550 for change in diff.iter_all_changes() {
6551 let value = change.value();
6552 match change.tag() {
6553 ChangeTag::Equal => {
6554 offset += value.len();
6555 moved_since_edit = true;
6556 }
6557 ChangeTag::Delete => {
6558 let start = buffer.anchor_after(offset);
6559 let end = buffer.anchor_before(offset + value.len());
6560
6561 if moved_since_edit {
6562 edits.push((start..end, String::new()));
6563 } else {
6564 edits.last_mut().unwrap().0.end = end;
6565 }
6566
6567 offset += value.len();
6568 moved_since_edit = false;
6569 }
6570 ChangeTag::Insert => {
6571 if moved_since_edit {
6572 let anchor = buffer.anchor_after(offset);
6573 edits.push((anchor..anchor, value.to_string()));
6574 } else {
6575 edits.last_mut().unwrap().1.push_str(value);
6576 }
6577
6578 moved_since_edit = false;
6579 }
6580 }
6581 }
6582
6583 rewrapped_row_ranges.push(start_row..=end_row);
6584 }
6585
6586 self.buffer
6587 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6588 }
6589
6590 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6591 let mut text = String::new();
6592 let buffer = self.buffer.read(cx).snapshot(cx);
6593 let mut selections = self.selections.all::<Point>(cx);
6594 let mut clipboard_selections = Vec::with_capacity(selections.len());
6595 {
6596 let max_point = buffer.max_point();
6597 let mut is_first = true;
6598 for selection in &mut selections {
6599 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6600 if is_entire_line {
6601 selection.start = Point::new(selection.start.row, 0);
6602 if !selection.is_empty() && selection.end.column == 0 {
6603 selection.end = cmp::min(max_point, selection.end);
6604 } else {
6605 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6606 }
6607 selection.goal = SelectionGoal::None;
6608 }
6609 if is_first {
6610 is_first = false;
6611 } else {
6612 text += "\n";
6613 }
6614 let mut len = 0;
6615 for chunk in buffer.text_for_range(selection.start..selection.end) {
6616 text.push_str(chunk);
6617 len += chunk.len();
6618 }
6619 clipboard_selections.push(ClipboardSelection {
6620 len,
6621 is_entire_line,
6622 first_line_indent: buffer
6623 .indent_size_for_line(MultiBufferRow(selection.start.row))
6624 .len,
6625 });
6626 }
6627 }
6628
6629 self.transact(cx, |this, cx| {
6630 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6631 s.select(selections);
6632 });
6633 this.insert("", cx);
6634 });
6635 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6636 }
6637
6638 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6639 let item = self.cut_common(cx);
6640 cx.write_to_clipboard(item);
6641 }
6642
6643 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6644 self.change_selections(None, cx, |s| {
6645 s.move_with(|snapshot, sel| {
6646 if sel.is_empty() {
6647 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6648 }
6649 });
6650 });
6651 let item = self.cut_common(cx);
6652 cx.set_global(KillRing(item))
6653 }
6654
6655 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6656 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6657 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6658 (kill_ring.text().to_string(), kill_ring.metadata_json())
6659 } else {
6660 return;
6661 }
6662 } else {
6663 return;
6664 };
6665 self.do_paste(&text, metadata, false, cx);
6666 }
6667
6668 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6669 let selections = self.selections.all::<Point>(cx);
6670 let buffer = self.buffer.read(cx).read(cx);
6671 let mut text = String::new();
6672
6673 let mut clipboard_selections = Vec::with_capacity(selections.len());
6674 {
6675 let max_point = buffer.max_point();
6676 let mut is_first = true;
6677 for selection in selections.iter() {
6678 let mut start = selection.start;
6679 let mut end = selection.end;
6680 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6681 if is_entire_line {
6682 start = Point::new(start.row, 0);
6683 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6684 }
6685 if is_first {
6686 is_first = false;
6687 } else {
6688 text += "\n";
6689 }
6690 let mut len = 0;
6691 for chunk in buffer.text_for_range(start..end) {
6692 text.push_str(chunk);
6693 len += chunk.len();
6694 }
6695 clipboard_selections.push(ClipboardSelection {
6696 len,
6697 is_entire_line,
6698 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6699 });
6700 }
6701 }
6702
6703 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6704 text,
6705 clipboard_selections,
6706 ));
6707 }
6708
6709 pub fn do_paste(
6710 &mut self,
6711 text: &String,
6712 clipboard_selections: Option<Vec<ClipboardSelection>>,
6713 handle_entire_lines: bool,
6714 cx: &mut ViewContext<Self>,
6715 ) {
6716 if self.read_only(cx) {
6717 return;
6718 }
6719
6720 let clipboard_text = Cow::Borrowed(text);
6721
6722 self.transact(cx, |this, cx| {
6723 if let Some(mut clipboard_selections) = clipboard_selections {
6724 let old_selections = this.selections.all::<usize>(cx);
6725 let all_selections_were_entire_line =
6726 clipboard_selections.iter().all(|s| s.is_entire_line);
6727 let first_selection_indent_column =
6728 clipboard_selections.first().map(|s| s.first_line_indent);
6729 if clipboard_selections.len() != old_selections.len() {
6730 clipboard_selections.drain(..);
6731 }
6732 let cursor_offset = this.selections.last::<usize>(cx).head();
6733 let mut auto_indent_on_paste = true;
6734
6735 this.buffer.update(cx, |buffer, cx| {
6736 let snapshot = buffer.read(cx);
6737 auto_indent_on_paste =
6738 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6739
6740 let mut start_offset = 0;
6741 let mut edits = Vec::new();
6742 let mut original_indent_columns = Vec::new();
6743 for (ix, selection) in old_selections.iter().enumerate() {
6744 let to_insert;
6745 let entire_line;
6746 let original_indent_column;
6747 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6748 let end_offset = start_offset + clipboard_selection.len;
6749 to_insert = &clipboard_text[start_offset..end_offset];
6750 entire_line = clipboard_selection.is_entire_line;
6751 start_offset = end_offset + 1;
6752 original_indent_column = Some(clipboard_selection.first_line_indent);
6753 } else {
6754 to_insert = clipboard_text.as_str();
6755 entire_line = all_selections_were_entire_line;
6756 original_indent_column = first_selection_indent_column
6757 }
6758
6759 // If the corresponding selection was empty when this slice of the
6760 // clipboard text was written, then the entire line containing the
6761 // selection was copied. If this selection is also currently empty,
6762 // then paste the line before the current line of the buffer.
6763 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6764 let column = selection.start.to_point(&snapshot).column as usize;
6765 let line_start = selection.start - column;
6766 line_start..line_start
6767 } else {
6768 selection.range()
6769 };
6770
6771 edits.push((range, to_insert));
6772 original_indent_columns.extend(original_indent_column);
6773 }
6774 drop(snapshot);
6775
6776 buffer.edit(
6777 edits,
6778 if auto_indent_on_paste {
6779 Some(AutoindentMode::Block {
6780 original_indent_columns,
6781 })
6782 } else {
6783 None
6784 },
6785 cx,
6786 );
6787 });
6788
6789 let selections = this.selections.all::<usize>(cx);
6790 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6791 } else {
6792 this.insert(&clipboard_text, cx);
6793 }
6794 });
6795 }
6796
6797 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6798 if let Some(item) = cx.read_from_clipboard() {
6799 let entries = item.entries();
6800
6801 match entries.first() {
6802 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
6803 // of all the pasted entries.
6804 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
6805 .do_paste(
6806 clipboard_string.text(),
6807 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
6808 true,
6809 cx,
6810 ),
6811 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
6812 }
6813 }
6814 }
6815
6816 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6817 if self.read_only(cx) {
6818 return;
6819 }
6820
6821 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6822 if let Some((selections, _)) =
6823 self.selection_history.transaction(transaction_id).cloned()
6824 {
6825 self.change_selections(None, cx, |s| {
6826 s.select_anchors(selections.to_vec());
6827 });
6828 }
6829 self.request_autoscroll(Autoscroll::fit(), cx);
6830 self.unmark_text(cx);
6831 self.refresh_inline_completion(true, false, cx);
6832 cx.emit(EditorEvent::Edited { transaction_id });
6833 cx.emit(EditorEvent::TransactionUndone { transaction_id });
6834 }
6835 }
6836
6837 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6838 if self.read_only(cx) {
6839 return;
6840 }
6841
6842 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6843 if let Some((_, Some(selections))) =
6844 self.selection_history.transaction(transaction_id).cloned()
6845 {
6846 self.change_selections(None, cx, |s| {
6847 s.select_anchors(selections.to_vec());
6848 });
6849 }
6850 self.request_autoscroll(Autoscroll::fit(), cx);
6851 self.unmark_text(cx);
6852 self.refresh_inline_completion(true, false, cx);
6853 cx.emit(EditorEvent::Edited { transaction_id });
6854 }
6855 }
6856
6857 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6858 self.buffer
6859 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6860 }
6861
6862 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6863 self.buffer
6864 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6865 }
6866
6867 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6868 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6869 let line_mode = s.line_mode;
6870 s.move_with(|map, selection| {
6871 let cursor = if selection.is_empty() && !line_mode {
6872 movement::left(map, selection.start)
6873 } else {
6874 selection.start
6875 };
6876 selection.collapse_to(cursor, SelectionGoal::None);
6877 });
6878 })
6879 }
6880
6881 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6882 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6883 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6884 })
6885 }
6886
6887 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6888 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6889 let line_mode = s.line_mode;
6890 s.move_with(|map, selection| {
6891 let cursor = if selection.is_empty() && !line_mode {
6892 movement::right(map, selection.end)
6893 } else {
6894 selection.end
6895 };
6896 selection.collapse_to(cursor, SelectionGoal::None)
6897 });
6898 })
6899 }
6900
6901 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6902 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6903 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6904 })
6905 }
6906
6907 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6908 if self.take_rename(true, cx).is_some() {
6909 return;
6910 }
6911
6912 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6913 cx.propagate();
6914 return;
6915 }
6916
6917 let text_layout_details = &self.text_layout_details(cx);
6918 let selection_count = self.selections.count();
6919 let first_selection = self.selections.first_anchor();
6920
6921 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6922 let line_mode = s.line_mode;
6923 s.move_with(|map, selection| {
6924 if !selection.is_empty() && !line_mode {
6925 selection.goal = SelectionGoal::None;
6926 }
6927 let (cursor, goal) = movement::up(
6928 map,
6929 selection.start,
6930 selection.goal,
6931 false,
6932 text_layout_details,
6933 );
6934 selection.collapse_to(cursor, goal);
6935 });
6936 });
6937
6938 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6939 {
6940 cx.propagate();
6941 }
6942 }
6943
6944 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6945 if self.take_rename(true, cx).is_some() {
6946 return;
6947 }
6948
6949 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6950 cx.propagate();
6951 return;
6952 }
6953
6954 let text_layout_details = &self.text_layout_details(cx);
6955
6956 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6957 let line_mode = s.line_mode;
6958 s.move_with(|map, selection| {
6959 if !selection.is_empty() && !line_mode {
6960 selection.goal = SelectionGoal::None;
6961 }
6962 let (cursor, goal) = movement::up_by_rows(
6963 map,
6964 selection.start,
6965 action.lines,
6966 selection.goal,
6967 false,
6968 text_layout_details,
6969 );
6970 selection.collapse_to(cursor, goal);
6971 });
6972 })
6973 }
6974
6975 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6976 if self.take_rename(true, cx).is_some() {
6977 return;
6978 }
6979
6980 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6981 cx.propagate();
6982 return;
6983 }
6984
6985 let text_layout_details = &self.text_layout_details(cx);
6986
6987 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6988 let line_mode = s.line_mode;
6989 s.move_with(|map, selection| {
6990 if !selection.is_empty() && !line_mode {
6991 selection.goal = SelectionGoal::None;
6992 }
6993 let (cursor, goal) = movement::down_by_rows(
6994 map,
6995 selection.start,
6996 action.lines,
6997 selection.goal,
6998 false,
6999 text_layout_details,
7000 );
7001 selection.collapse_to(cursor, goal);
7002 });
7003 })
7004 }
7005
7006 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7007 let text_layout_details = &self.text_layout_details(cx);
7008 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7009 s.move_heads_with(|map, head, goal| {
7010 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7011 })
7012 })
7013 }
7014
7015 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7016 let text_layout_details = &self.text_layout_details(cx);
7017 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7018 s.move_heads_with(|map, head, goal| {
7019 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7020 })
7021 })
7022 }
7023
7024 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7025 let Some(row_count) = self.visible_row_count() else {
7026 return;
7027 };
7028
7029 let text_layout_details = &self.text_layout_details(cx);
7030
7031 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7032 s.move_heads_with(|map, head, goal| {
7033 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7034 })
7035 })
7036 }
7037
7038 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7039 if self.take_rename(true, cx).is_some() {
7040 return;
7041 }
7042
7043 if self
7044 .context_menu
7045 .write()
7046 .as_mut()
7047 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7048 .unwrap_or(false)
7049 {
7050 return;
7051 }
7052
7053 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7054 cx.propagate();
7055 return;
7056 }
7057
7058 let Some(row_count) = self.visible_row_count() else {
7059 return;
7060 };
7061
7062 let autoscroll = if action.center_cursor {
7063 Autoscroll::center()
7064 } else {
7065 Autoscroll::fit()
7066 };
7067
7068 let text_layout_details = &self.text_layout_details(cx);
7069
7070 self.change_selections(Some(autoscroll), cx, |s| {
7071 let line_mode = s.line_mode;
7072 s.move_with(|map, selection| {
7073 if !selection.is_empty() && !line_mode {
7074 selection.goal = SelectionGoal::None;
7075 }
7076 let (cursor, goal) = movement::up_by_rows(
7077 map,
7078 selection.end,
7079 row_count,
7080 selection.goal,
7081 false,
7082 text_layout_details,
7083 );
7084 selection.collapse_to(cursor, goal);
7085 });
7086 });
7087 }
7088
7089 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7090 let text_layout_details = &self.text_layout_details(cx);
7091 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7092 s.move_heads_with(|map, head, goal| {
7093 movement::up(map, head, goal, false, text_layout_details)
7094 })
7095 })
7096 }
7097
7098 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7099 self.take_rename(true, cx);
7100
7101 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7102 cx.propagate();
7103 return;
7104 }
7105
7106 let text_layout_details = &self.text_layout_details(cx);
7107 let selection_count = self.selections.count();
7108 let first_selection = self.selections.first_anchor();
7109
7110 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7111 let line_mode = s.line_mode;
7112 s.move_with(|map, selection| {
7113 if !selection.is_empty() && !line_mode {
7114 selection.goal = SelectionGoal::None;
7115 }
7116 let (cursor, goal) = movement::down(
7117 map,
7118 selection.end,
7119 selection.goal,
7120 false,
7121 text_layout_details,
7122 );
7123 selection.collapse_to(cursor, goal);
7124 });
7125 });
7126
7127 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7128 {
7129 cx.propagate();
7130 }
7131 }
7132
7133 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7134 let Some(row_count) = self.visible_row_count() else {
7135 return;
7136 };
7137
7138 let text_layout_details = &self.text_layout_details(cx);
7139
7140 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7141 s.move_heads_with(|map, head, goal| {
7142 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7143 })
7144 })
7145 }
7146
7147 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7148 if self.take_rename(true, cx).is_some() {
7149 return;
7150 }
7151
7152 if self
7153 .context_menu
7154 .write()
7155 .as_mut()
7156 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7157 .unwrap_or(false)
7158 {
7159 return;
7160 }
7161
7162 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7163 cx.propagate();
7164 return;
7165 }
7166
7167 let Some(row_count) = self.visible_row_count() else {
7168 return;
7169 };
7170
7171 let autoscroll = if action.center_cursor {
7172 Autoscroll::center()
7173 } else {
7174 Autoscroll::fit()
7175 };
7176
7177 let text_layout_details = &self.text_layout_details(cx);
7178 self.change_selections(Some(autoscroll), cx, |s| {
7179 let line_mode = s.line_mode;
7180 s.move_with(|map, selection| {
7181 if !selection.is_empty() && !line_mode {
7182 selection.goal = SelectionGoal::None;
7183 }
7184 let (cursor, goal) = movement::down_by_rows(
7185 map,
7186 selection.end,
7187 row_count,
7188 selection.goal,
7189 false,
7190 text_layout_details,
7191 );
7192 selection.collapse_to(cursor, goal);
7193 });
7194 });
7195 }
7196
7197 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7198 let text_layout_details = &self.text_layout_details(cx);
7199 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7200 s.move_heads_with(|map, head, goal| {
7201 movement::down(map, head, goal, false, text_layout_details)
7202 })
7203 });
7204 }
7205
7206 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7207 if let Some(context_menu) = self.context_menu.write().as_mut() {
7208 context_menu.select_first(self.completion_provider.as_deref(), cx);
7209 }
7210 }
7211
7212 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7213 if let Some(context_menu) = self.context_menu.write().as_mut() {
7214 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7215 }
7216 }
7217
7218 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7219 if let Some(context_menu) = self.context_menu.write().as_mut() {
7220 context_menu.select_next(self.completion_provider.as_deref(), cx);
7221 }
7222 }
7223
7224 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7225 if let Some(context_menu) = self.context_menu.write().as_mut() {
7226 context_menu.select_last(self.completion_provider.as_deref(), cx);
7227 }
7228 }
7229
7230 pub fn move_to_previous_word_start(
7231 &mut self,
7232 _: &MoveToPreviousWordStart,
7233 cx: &mut ViewContext<Self>,
7234 ) {
7235 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7236 s.move_cursors_with(|map, head, _| {
7237 (
7238 movement::previous_word_start(map, head),
7239 SelectionGoal::None,
7240 )
7241 });
7242 })
7243 }
7244
7245 pub fn move_to_previous_subword_start(
7246 &mut self,
7247 _: &MoveToPreviousSubwordStart,
7248 cx: &mut ViewContext<Self>,
7249 ) {
7250 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7251 s.move_cursors_with(|map, head, _| {
7252 (
7253 movement::previous_subword_start(map, head),
7254 SelectionGoal::None,
7255 )
7256 });
7257 })
7258 }
7259
7260 pub fn select_to_previous_word_start(
7261 &mut self,
7262 _: &SelectToPreviousWordStart,
7263 cx: &mut ViewContext<Self>,
7264 ) {
7265 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7266 s.move_heads_with(|map, head, _| {
7267 (
7268 movement::previous_word_start(map, head),
7269 SelectionGoal::None,
7270 )
7271 });
7272 })
7273 }
7274
7275 pub fn select_to_previous_subword_start(
7276 &mut self,
7277 _: &SelectToPreviousSubwordStart,
7278 cx: &mut ViewContext<Self>,
7279 ) {
7280 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7281 s.move_heads_with(|map, head, _| {
7282 (
7283 movement::previous_subword_start(map, head),
7284 SelectionGoal::None,
7285 )
7286 });
7287 })
7288 }
7289
7290 pub fn delete_to_previous_word_start(
7291 &mut self,
7292 action: &DeleteToPreviousWordStart,
7293 cx: &mut ViewContext<Self>,
7294 ) {
7295 self.transact(cx, |this, cx| {
7296 this.select_autoclose_pair(cx);
7297 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7298 let line_mode = s.line_mode;
7299 s.move_with(|map, selection| {
7300 if selection.is_empty() && !line_mode {
7301 let cursor = if action.ignore_newlines {
7302 movement::previous_word_start(map, selection.head())
7303 } else {
7304 movement::previous_word_start_or_newline(map, selection.head())
7305 };
7306 selection.set_head(cursor, SelectionGoal::None);
7307 }
7308 });
7309 });
7310 this.insert("", cx);
7311 });
7312 }
7313
7314 pub fn delete_to_previous_subword_start(
7315 &mut self,
7316 _: &DeleteToPreviousSubwordStart,
7317 cx: &mut ViewContext<Self>,
7318 ) {
7319 self.transact(cx, |this, cx| {
7320 this.select_autoclose_pair(cx);
7321 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7322 let line_mode = s.line_mode;
7323 s.move_with(|map, selection| {
7324 if selection.is_empty() && !line_mode {
7325 let cursor = movement::previous_subword_start(map, selection.head());
7326 selection.set_head(cursor, SelectionGoal::None);
7327 }
7328 });
7329 });
7330 this.insert("", cx);
7331 });
7332 }
7333
7334 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7335 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7336 s.move_cursors_with(|map, head, _| {
7337 (movement::next_word_end(map, head), SelectionGoal::None)
7338 });
7339 })
7340 }
7341
7342 pub fn move_to_next_subword_end(
7343 &mut self,
7344 _: &MoveToNextSubwordEnd,
7345 cx: &mut ViewContext<Self>,
7346 ) {
7347 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7348 s.move_cursors_with(|map, head, _| {
7349 (movement::next_subword_end(map, head), SelectionGoal::None)
7350 });
7351 })
7352 }
7353
7354 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7355 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7356 s.move_heads_with(|map, head, _| {
7357 (movement::next_word_end(map, head), SelectionGoal::None)
7358 });
7359 })
7360 }
7361
7362 pub fn select_to_next_subword_end(
7363 &mut self,
7364 _: &SelectToNextSubwordEnd,
7365 cx: &mut ViewContext<Self>,
7366 ) {
7367 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7368 s.move_heads_with(|map, head, _| {
7369 (movement::next_subword_end(map, head), SelectionGoal::None)
7370 });
7371 })
7372 }
7373
7374 pub fn delete_to_next_word_end(
7375 &mut self,
7376 action: &DeleteToNextWordEnd,
7377 cx: &mut ViewContext<Self>,
7378 ) {
7379 self.transact(cx, |this, cx| {
7380 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7381 let line_mode = s.line_mode;
7382 s.move_with(|map, selection| {
7383 if selection.is_empty() && !line_mode {
7384 let cursor = if action.ignore_newlines {
7385 movement::next_word_end(map, selection.head())
7386 } else {
7387 movement::next_word_end_or_newline(map, selection.head())
7388 };
7389 selection.set_head(cursor, SelectionGoal::None);
7390 }
7391 });
7392 });
7393 this.insert("", cx);
7394 });
7395 }
7396
7397 pub fn delete_to_next_subword_end(
7398 &mut self,
7399 _: &DeleteToNextSubwordEnd,
7400 cx: &mut ViewContext<Self>,
7401 ) {
7402 self.transact(cx, |this, cx| {
7403 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7404 s.move_with(|map, selection| {
7405 if selection.is_empty() {
7406 let cursor = movement::next_subword_end(map, selection.head());
7407 selection.set_head(cursor, SelectionGoal::None);
7408 }
7409 });
7410 });
7411 this.insert("", cx);
7412 });
7413 }
7414
7415 pub fn move_to_beginning_of_line(
7416 &mut self,
7417 action: &MoveToBeginningOfLine,
7418 cx: &mut ViewContext<Self>,
7419 ) {
7420 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7421 s.move_cursors_with(|map, head, _| {
7422 (
7423 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7424 SelectionGoal::None,
7425 )
7426 });
7427 })
7428 }
7429
7430 pub fn select_to_beginning_of_line(
7431 &mut self,
7432 action: &SelectToBeginningOfLine,
7433 cx: &mut ViewContext<Self>,
7434 ) {
7435 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7436 s.move_heads_with(|map, head, _| {
7437 (
7438 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7439 SelectionGoal::None,
7440 )
7441 });
7442 });
7443 }
7444
7445 pub fn delete_to_beginning_of_line(
7446 &mut self,
7447 _: &DeleteToBeginningOfLine,
7448 cx: &mut ViewContext<Self>,
7449 ) {
7450 self.transact(cx, |this, cx| {
7451 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7452 s.move_with(|_, selection| {
7453 selection.reversed = true;
7454 });
7455 });
7456
7457 this.select_to_beginning_of_line(
7458 &SelectToBeginningOfLine {
7459 stop_at_soft_wraps: false,
7460 },
7461 cx,
7462 );
7463 this.backspace(&Backspace, cx);
7464 });
7465 }
7466
7467 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7468 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7469 s.move_cursors_with(|map, head, _| {
7470 (
7471 movement::line_end(map, head, action.stop_at_soft_wraps),
7472 SelectionGoal::None,
7473 )
7474 });
7475 })
7476 }
7477
7478 pub fn select_to_end_of_line(
7479 &mut self,
7480 action: &SelectToEndOfLine,
7481 cx: &mut ViewContext<Self>,
7482 ) {
7483 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7484 s.move_heads_with(|map, head, _| {
7485 (
7486 movement::line_end(map, head, action.stop_at_soft_wraps),
7487 SelectionGoal::None,
7488 )
7489 });
7490 })
7491 }
7492
7493 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7494 self.transact(cx, |this, cx| {
7495 this.select_to_end_of_line(
7496 &SelectToEndOfLine {
7497 stop_at_soft_wraps: false,
7498 },
7499 cx,
7500 );
7501 this.delete(&Delete, cx);
7502 });
7503 }
7504
7505 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7506 self.transact(cx, |this, cx| {
7507 this.select_to_end_of_line(
7508 &SelectToEndOfLine {
7509 stop_at_soft_wraps: false,
7510 },
7511 cx,
7512 );
7513 this.cut(&Cut, cx);
7514 });
7515 }
7516
7517 pub fn move_to_start_of_paragraph(
7518 &mut self,
7519 _: &MoveToStartOfParagraph,
7520 cx: &mut ViewContext<Self>,
7521 ) {
7522 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7523 cx.propagate();
7524 return;
7525 }
7526
7527 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7528 s.move_with(|map, selection| {
7529 selection.collapse_to(
7530 movement::start_of_paragraph(map, selection.head(), 1),
7531 SelectionGoal::None,
7532 )
7533 });
7534 })
7535 }
7536
7537 pub fn move_to_end_of_paragraph(
7538 &mut self,
7539 _: &MoveToEndOfParagraph,
7540 cx: &mut ViewContext<Self>,
7541 ) {
7542 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7543 cx.propagate();
7544 return;
7545 }
7546
7547 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7548 s.move_with(|map, selection| {
7549 selection.collapse_to(
7550 movement::end_of_paragraph(map, selection.head(), 1),
7551 SelectionGoal::None,
7552 )
7553 });
7554 })
7555 }
7556
7557 pub fn select_to_start_of_paragraph(
7558 &mut self,
7559 _: &SelectToStartOfParagraph,
7560 cx: &mut ViewContext<Self>,
7561 ) {
7562 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7563 cx.propagate();
7564 return;
7565 }
7566
7567 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7568 s.move_heads_with(|map, head, _| {
7569 (
7570 movement::start_of_paragraph(map, head, 1),
7571 SelectionGoal::None,
7572 )
7573 });
7574 })
7575 }
7576
7577 pub fn select_to_end_of_paragraph(
7578 &mut self,
7579 _: &SelectToEndOfParagraph,
7580 cx: &mut ViewContext<Self>,
7581 ) {
7582 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7583 cx.propagate();
7584 return;
7585 }
7586
7587 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7588 s.move_heads_with(|map, head, _| {
7589 (
7590 movement::end_of_paragraph(map, head, 1),
7591 SelectionGoal::None,
7592 )
7593 });
7594 })
7595 }
7596
7597 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7598 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7599 cx.propagate();
7600 return;
7601 }
7602
7603 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7604 s.select_ranges(vec![0..0]);
7605 });
7606 }
7607
7608 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7609 let mut selection = self.selections.last::<Point>(cx);
7610 selection.set_head(Point::zero(), SelectionGoal::None);
7611
7612 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7613 s.select(vec![selection]);
7614 });
7615 }
7616
7617 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7618 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7619 cx.propagate();
7620 return;
7621 }
7622
7623 let cursor = self.buffer.read(cx).read(cx).len();
7624 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7625 s.select_ranges(vec![cursor..cursor])
7626 });
7627 }
7628
7629 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7630 self.nav_history = nav_history;
7631 }
7632
7633 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7634 self.nav_history.as_ref()
7635 }
7636
7637 fn push_to_nav_history(
7638 &mut self,
7639 cursor_anchor: Anchor,
7640 new_position: Option<Point>,
7641 cx: &mut ViewContext<Self>,
7642 ) {
7643 if let Some(nav_history) = self.nav_history.as_mut() {
7644 let buffer = self.buffer.read(cx).read(cx);
7645 let cursor_position = cursor_anchor.to_point(&buffer);
7646 let scroll_state = self.scroll_manager.anchor();
7647 let scroll_top_row = scroll_state.top_row(&buffer);
7648 drop(buffer);
7649
7650 if let Some(new_position) = new_position {
7651 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7652 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7653 return;
7654 }
7655 }
7656
7657 nav_history.push(
7658 Some(NavigationData {
7659 cursor_anchor,
7660 cursor_position,
7661 scroll_anchor: scroll_state,
7662 scroll_top_row,
7663 }),
7664 cx,
7665 );
7666 }
7667 }
7668
7669 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7670 let buffer = self.buffer.read(cx).snapshot(cx);
7671 let mut selection = self.selections.first::<usize>(cx);
7672 selection.set_head(buffer.len(), SelectionGoal::None);
7673 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7674 s.select(vec![selection]);
7675 });
7676 }
7677
7678 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7679 let end = self.buffer.read(cx).read(cx).len();
7680 self.change_selections(None, cx, |s| {
7681 s.select_ranges(vec![0..end]);
7682 });
7683 }
7684
7685 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7686 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7687 let mut selections = self.selections.all::<Point>(cx);
7688 let max_point = display_map.buffer_snapshot.max_point();
7689 for selection in &mut selections {
7690 let rows = selection.spanned_rows(true, &display_map);
7691 selection.start = Point::new(rows.start.0, 0);
7692 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7693 selection.reversed = false;
7694 }
7695 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7696 s.select(selections);
7697 });
7698 }
7699
7700 pub fn split_selection_into_lines(
7701 &mut self,
7702 _: &SplitSelectionIntoLines,
7703 cx: &mut ViewContext<Self>,
7704 ) {
7705 let mut to_unfold = Vec::new();
7706 let mut new_selection_ranges = Vec::new();
7707 {
7708 let selections = self.selections.all::<Point>(cx);
7709 let buffer = self.buffer.read(cx).read(cx);
7710 for selection in selections {
7711 for row in selection.start.row..selection.end.row {
7712 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7713 new_selection_ranges.push(cursor..cursor);
7714 }
7715 new_selection_ranges.push(selection.end..selection.end);
7716 to_unfold.push(selection.start..selection.end);
7717 }
7718 }
7719 self.unfold_ranges(&to_unfold, true, true, cx);
7720 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7721 s.select_ranges(new_selection_ranges);
7722 });
7723 }
7724
7725 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7726 self.add_selection(true, cx);
7727 }
7728
7729 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7730 self.add_selection(false, cx);
7731 }
7732
7733 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7734 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7735 let mut selections = self.selections.all::<Point>(cx);
7736 let text_layout_details = self.text_layout_details(cx);
7737 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7738 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7739 let range = oldest_selection.display_range(&display_map).sorted();
7740
7741 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7742 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7743 let positions = start_x.min(end_x)..start_x.max(end_x);
7744
7745 selections.clear();
7746 let mut stack = Vec::new();
7747 for row in range.start.row().0..=range.end.row().0 {
7748 if let Some(selection) = self.selections.build_columnar_selection(
7749 &display_map,
7750 DisplayRow(row),
7751 &positions,
7752 oldest_selection.reversed,
7753 &text_layout_details,
7754 ) {
7755 stack.push(selection.id);
7756 selections.push(selection);
7757 }
7758 }
7759
7760 if above {
7761 stack.reverse();
7762 }
7763
7764 AddSelectionsState { above, stack }
7765 });
7766
7767 let last_added_selection = *state.stack.last().unwrap();
7768 let mut new_selections = Vec::new();
7769 if above == state.above {
7770 let end_row = if above {
7771 DisplayRow(0)
7772 } else {
7773 display_map.max_point().row()
7774 };
7775
7776 'outer: for selection in selections {
7777 if selection.id == last_added_selection {
7778 let range = selection.display_range(&display_map).sorted();
7779 debug_assert_eq!(range.start.row(), range.end.row());
7780 let mut row = range.start.row();
7781 let positions =
7782 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7783 px(start)..px(end)
7784 } else {
7785 let start_x =
7786 display_map.x_for_display_point(range.start, &text_layout_details);
7787 let end_x =
7788 display_map.x_for_display_point(range.end, &text_layout_details);
7789 start_x.min(end_x)..start_x.max(end_x)
7790 };
7791
7792 while row != end_row {
7793 if above {
7794 row.0 -= 1;
7795 } else {
7796 row.0 += 1;
7797 }
7798
7799 if let Some(new_selection) = self.selections.build_columnar_selection(
7800 &display_map,
7801 row,
7802 &positions,
7803 selection.reversed,
7804 &text_layout_details,
7805 ) {
7806 state.stack.push(new_selection.id);
7807 if above {
7808 new_selections.push(new_selection);
7809 new_selections.push(selection);
7810 } else {
7811 new_selections.push(selection);
7812 new_selections.push(new_selection);
7813 }
7814
7815 continue 'outer;
7816 }
7817 }
7818 }
7819
7820 new_selections.push(selection);
7821 }
7822 } else {
7823 new_selections = selections;
7824 new_selections.retain(|s| s.id != last_added_selection);
7825 state.stack.pop();
7826 }
7827
7828 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7829 s.select(new_selections);
7830 });
7831 if state.stack.len() > 1 {
7832 self.add_selections_state = Some(state);
7833 }
7834 }
7835
7836 pub fn select_next_match_internal(
7837 &mut self,
7838 display_map: &DisplaySnapshot,
7839 replace_newest: bool,
7840 autoscroll: Option<Autoscroll>,
7841 cx: &mut ViewContext<Self>,
7842 ) -> Result<()> {
7843 fn select_next_match_ranges(
7844 this: &mut Editor,
7845 range: Range<usize>,
7846 replace_newest: bool,
7847 auto_scroll: Option<Autoscroll>,
7848 cx: &mut ViewContext<Editor>,
7849 ) {
7850 this.unfold_ranges(&[range.clone()], false, true, cx);
7851 this.change_selections(auto_scroll, cx, |s| {
7852 if replace_newest {
7853 s.delete(s.newest_anchor().id);
7854 }
7855 s.insert_range(range.clone());
7856 });
7857 }
7858
7859 let buffer = &display_map.buffer_snapshot;
7860 let mut selections = self.selections.all::<usize>(cx);
7861 if let Some(mut select_next_state) = self.select_next_state.take() {
7862 let query = &select_next_state.query;
7863 if !select_next_state.done {
7864 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7865 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7866 let mut next_selected_range = None;
7867
7868 let bytes_after_last_selection =
7869 buffer.bytes_in_range(last_selection.end..buffer.len());
7870 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7871 let query_matches = query
7872 .stream_find_iter(bytes_after_last_selection)
7873 .map(|result| (last_selection.end, result))
7874 .chain(
7875 query
7876 .stream_find_iter(bytes_before_first_selection)
7877 .map(|result| (0, result)),
7878 );
7879
7880 for (start_offset, query_match) in query_matches {
7881 let query_match = query_match.unwrap(); // can only fail due to I/O
7882 let offset_range =
7883 start_offset + query_match.start()..start_offset + query_match.end();
7884 let display_range = offset_range.start.to_display_point(display_map)
7885 ..offset_range.end.to_display_point(display_map);
7886
7887 if !select_next_state.wordwise
7888 || (!movement::is_inside_word(display_map, display_range.start)
7889 && !movement::is_inside_word(display_map, display_range.end))
7890 {
7891 // TODO: This is n^2, because we might check all the selections
7892 if !selections
7893 .iter()
7894 .any(|selection| selection.range().overlaps(&offset_range))
7895 {
7896 next_selected_range = Some(offset_range);
7897 break;
7898 }
7899 }
7900 }
7901
7902 if let Some(next_selected_range) = next_selected_range {
7903 select_next_match_ranges(
7904 self,
7905 next_selected_range,
7906 replace_newest,
7907 autoscroll,
7908 cx,
7909 );
7910 } else {
7911 select_next_state.done = true;
7912 }
7913 }
7914
7915 self.select_next_state = Some(select_next_state);
7916 } else {
7917 let mut only_carets = true;
7918 let mut same_text_selected = true;
7919 let mut selected_text = None;
7920
7921 let mut selections_iter = selections.iter().peekable();
7922 while let Some(selection) = selections_iter.next() {
7923 if selection.start != selection.end {
7924 only_carets = false;
7925 }
7926
7927 if same_text_selected {
7928 if selected_text.is_none() {
7929 selected_text =
7930 Some(buffer.text_for_range(selection.range()).collect::<String>());
7931 }
7932
7933 if let Some(next_selection) = selections_iter.peek() {
7934 if next_selection.range().len() == selection.range().len() {
7935 let next_selected_text = buffer
7936 .text_for_range(next_selection.range())
7937 .collect::<String>();
7938 if Some(next_selected_text) != selected_text {
7939 same_text_selected = false;
7940 selected_text = None;
7941 }
7942 } else {
7943 same_text_selected = false;
7944 selected_text = None;
7945 }
7946 }
7947 }
7948 }
7949
7950 if only_carets {
7951 for selection in &mut selections {
7952 let word_range = movement::surrounding_word(
7953 display_map,
7954 selection.start.to_display_point(display_map),
7955 );
7956 selection.start = word_range.start.to_offset(display_map, Bias::Left);
7957 selection.end = word_range.end.to_offset(display_map, Bias::Left);
7958 selection.goal = SelectionGoal::None;
7959 selection.reversed = false;
7960 select_next_match_ranges(
7961 self,
7962 selection.start..selection.end,
7963 replace_newest,
7964 autoscroll,
7965 cx,
7966 );
7967 }
7968
7969 if selections.len() == 1 {
7970 let selection = selections
7971 .last()
7972 .expect("ensured that there's only one selection");
7973 let query = buffer
7974 .text_for_range(selection.start..selection.end)
7975 .collect::<String>();
7976 let is_empty = query.is_empty();
7977 let select_state = SelectNextState {
7978 query: AhoCorasick::new(&[query])?,
7979 wordwise: true,
7980 done: is_empty,
7981 };
7982 self.select_next_state = Some(select_state);
7983 } else {
7984 self.select_next_state = None;
7985 }
7986 } else if let Some(selected_text) = selected_text {
7987 self.select_next_state = Some(SelectNextState {
7988 query: AhoCorasick::new(&[selected_text])?,
7989 wordwise: false,
7990 done: false,
7991 });
7992 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7993 }
7994 }
7995 Ok(())
7996 }
7997
7998 pub fn select_all_matches(
7999 &mut self,
8000 _action: &SelectAllMatches,
8001 cx: &mut ViewContext<Self>,
8002 ) -> Result<()> {
8003 self.push_to_selection_history();
8004 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8005
8006 self.select_next_match_internal(&display_map, false, None, cx)?;
8007 let Some(select_next_state) = self.select_next_state.as_mut() else {
8008 return Ok(());
8009 };
8010 if select_next_state.done {
8011 return Ok(());
8012 }
8013
8014 let mut new_selections = self.selections.all::<usize>(cx);
8015
8016 let buffer = &display_map.buffer_snapshot;
8017 let query_matches = select_next_state
8018 .query
8019 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8020
8021 for query_match in query_matches {
8022 let query_match = query_match.unwrap(); // can only fail due to I/O
8023 let offset_range = query_match.start()..query_match.end();
8024 let display_range = offset_range.start.to_display_point(&display_map)
8025 ..offset_range.end.to_display_point(&display_map);
8026
8027 if !select_next_state.wordwise
8028 || (!movement::is_inside_word(&display_map, display_range.start)
8029 && !movement::is_inside_word(&display_map, display_range.end))
8030 {
8031 self.selections.change_with(cx, |selections| {
8032 new_selections.push(Selection {
8033 id: selections.new_selection_id(),
8034 start: offset_range.start,
8035 end: offset_range.end,
8036 reversed: false,
8037 goal: SelectionGoal::None,
8038 });
8039 });
8040 }
8041 }
8042
8043 new_selections.sort_by_key(|selection| selection.start);
8044 let mut ix = 0;
8045 while ix + 1 < new_selections.len() {
8046 let current_selection = &new_selections[ix];
8047 let next_selection = &new_selections[ix + 1];
8048 if current_selection.range().overlaps(&next_selection.range()) {
8049 if current_selection.id < next_selection.id {
8050 new_selections.remove(ix + 1);
8051 } else {
8052 new_selections.remove(ix);
8053 }
8054 } else {
8055 ix += 1;
8056 }
8057 }
8058
8059 select_next_state.done = true;
8060 self.unfold_ranges(
8061 &new_selections
8062 .iter()
8063 .map(|selection| selection.range())
8064 .collect::<Vec<_>>(),
8065 false,
8066 false,
8067 cx,
8068 );
8069 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8070 selections.select(new_selections)
8071 });
8072
8073 Ok(())
8074 }
8075
8076 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8077 self.push_to_selection_history();
8078 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8079 self.select_next_match_internal(
8080 &display_map,
8081 action.replace_newest,
8082 Some(Autoscroll::newest()),
8083 cx,
8084 )?;
8085 Ok(())
8086 }
8087
8088 pub fn select_previous(
8089 &mut self,
8090 action: &SelectPrevious,
8091 cx: &mut ViewContext<Self>,
8092 ) -> Result<()> {
8093 self.push_to_selection_history();
8094 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8095 let buffer = &display_map.buffer_snapshot;
8096 let mut selections = self.selections.all::<usize>(cx);
8097 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8098 let query = &select_prev_state.query;
8099 if !select_prev_state.done {
8100 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8101 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8102 let mut next_selected_range = None;
8103 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8104 let bytes_before_last_selection =
8105 buffer.reversed_bytes_in_range(0..last_selection.start);
8106 let bytes_after_first_selection =
8107 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8108 let query_matches = query
8109 .stream_find_iter(bytes_before_last_selection)
8110 .map(|result| (last_selection.start, result))
8111 .chain(
8112 query
8113 .stream_find_iter(bytes_after_first_selection)
8114 .map(|result| (buffer.len(), result)),
8115 );
8116 for (end_offset, query_match) in query_matches {
8117 let query_match = query_match.unwrap(); // can only fail due to I/O
8118 let offset_range =
8119 end_offset - query_match.end()..end_offset - query_match.start();
8120 let display_range = offset_range.start.to_display_point(&display_map)
8121 ..offset_range.end.to_display_point(&display_map);
8122
8123 if !select_prev_state.wordwise
8124 || (!movement::is_inside_word(&display_map, display_range.start)
8125 && !movement::is_inside_word(&display_map, display_range.end))
8126 {
8127 next_selected_range = Some(offset_range);
8128 break;
8129 }
8130 }
8131
8132 if let Some(next_selected_range) = next_selected_range {
8133 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8134 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8135 if action.replace_newest {
8136 s.delete(s.newest_anchor().id);
8137 }
8138 s.insert_range(next_selected_range);
8139 });
8140 } else {
8141 select_prev_state.done = true;
8142 }
8143 }
8144
8145 self.select_prev_state = Some(select_prev_state);
8146 } else {
8147 let mut only_carets = true;
8148 let mut same_text_selected = true;
8149 let mut selected_text = None;
8150
8151 let mut selections_iter = selections.iter().peekable();
8152 while let Some(selection) = selections_iter.next() {
8153 if selection.start != selection.end {
8154 only_carets = false;
8155 }
8156
8157 if same_text_selected {
8158 if selected_text.is_none() {
8159 selected_text =
8160 Some(buffer.text_for_range(selection.range()).collect::<String>());
8161 }
8162
8163 if let Some(next_selection) = selections_iter.peek() {
8164 if next_selection.range().len() == selection.range().len() {
8165 let next_selected_text = buffer
8166 .text_for_range(next_selection.range())
8167 .collect::<String>();
8168 if Some(next_selected_text) != selected_text {
8169 same_text_selected = false;
8170 selected_text = None;
8171 }
8172 } else {
8173 same_text_selected = false;
8174 selected_text = None;
8175 }
8176 }
8177 }
8178 }
8179
8180 if only_carets {
8181 for selection in &mut selections {
8182 let word_range = movement::surrounding_word(
8183 &display_map,
8184 selection.start.to_display_point(&display_map),
8185 );
8186 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8187 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8188 selection.goal = SelectionGoal::None;
8189 selection.reversed = false;
8190 }
8191 if selections.len() == 1 {
8192 let selection = selections
8193 .last()
8194 .expect("ensured that there's only one selection");
8195 let query = buffer
8196 .text_for_range(selection.start..selection.end)
8197 .collect::<String>();
8198 let is_empty = query.is_empty();
8199 let select_state = SelectNextState {
8200 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8201 wordwise: true,
8202 done: is_empty,
8203 };
8204 self.select_prev_state = Some(select_state);
8205 } else {
8206 self.select_prev_state = None;
8207 }
8208
8209 self.unfold_ranges(
8210 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8211 false,
8212 true,
8213 cx,
8214 );
8215 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8216 s.select(selections);
8217 });
8218 } else if let Some(selected_text) = selected_text {
8219 self.select_prev_state = Some(SelectNextState {
8220 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8221 wordwise: false,
8222 done: false,
8223 });
8224 self.select_previous(action, cx)?;
8225 }
8226 }
8227 Ok(())
8228 }
8229
8230 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8231 if self.read_only(cx) {
8232 return;
8233 }
8234 let text_layout_details = &self.text_layout_details(cx);
8235 self.transact(cx, |this, cx| {
8236 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8237 let mut edits = Vec::new();
8238 let mut selection_edit_ranges = Vec::new();
8239 let mut last_toggled_row = None;
8240 let snapshot = this.buffer.read(cx).read(cx);
8241 let empty_str: Arc<str> = Arc::default();
8242 let mut suffixes_inserted = Vec::new();
8243 let ignore_indent = action.ignore_indent;
8244
8245 fn comment_prefix_range(
8246 snapshot: &MultiBufferSnapshot,
8247 row: MultiBufferRow,
8248 comment_prefix: &str,
8249 comment_prefix_whitespace: &str,
8250 ignore_indent: bool,
8251 ) -> Range<Point> {
8252 let indent_size = if ignore_indent {
8253 0
8254 } else {
8255 snapshot.indent_size_for_line(row).len
8256 };
8257
8258 let start = Point::new(row.0, indent_size);
8259
8260 let mut line_bytes = snapshot
8261 .bytes_in_range(start..snapshot.max_point())
8262 .flatten()
8263 .copied();
8264
8265 // If this line currently begins with the line comment prefix, then record
8266 // the range containing the prefix.
8267 if line_bytes
8268 .by_ref()
8269 .take(comment_prefix.len())
8270 .eq(comment_prefix.bytes())
8271 {
8272 // Include any whitespace that matches the comment prefix.
8273 let matching_whitespace_len = line_bytes
8274 .zip(comment_prefix_whitespace.bytes())
8275 .take_while(|(a, b)| a == b)
8276 .count() as u32;
8277 let end = Point::new(
8278 start.row,
8279 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8280 );
8281 start..end
8282 } else {
8283 start..start
8284 }
8285 }
8286
8287 fn comment_suffix_range(
8288 snapshot: &MultiBufferSnapshot,
8289 row: MultiBufferRow,
8290 comment_suffix: &str,
8291 comment_suffix_has_leading_space: bool,
8292 ) -> Range<Point> {
8293 let end = Point::new(row.0, snapshot.line_len(row));
8294 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8295
8296 let mut line_end_bytes = snapshot
8297 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8298 .flatten()
8299 .copied();
8300
8301 let leading_space_len = if suffix_start_column > 0
8302 && line_end_bytes.next() == Some(b' ')
8303 && comment_suffix_has_leading_space
8304 {
8305 1
8306 } else {
8307 0
8308 };
8309
8310 // If this line currently begins with the line comment prefix, then record
8311 // the range containing the prefix.
8312 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8313 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8314 start..end
8315 } else {
8316 end..end
8317 }
8318 }
8319
8320 // TODO: Handle selections that cross excerpts
8321 for selection in &mut selections {
8322 let start_column = snapshot
8323 .indent_size_for_line(MultiBufferRow(selection.start.row))
8324 .len;
8325 let language = if let Some(language) =
8326 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8327 {
8328 language
8329 } else {
8330 continue;
8331 };
8332
8333 selection_edit_ranges.clear();
8334
8335 // If multiple selections contain a given row, avoid processing that
8336 // row more than once.
8337 let mut start_row = MultiBufferRow(selection.start.row);
8338 if last_toggled_row == Some(start_row) {
8339 start_row = start_row.next_row();
8340 }
8341 let end_row =
8342 if selection.end.row > selection.start.row && selection.end.column == 0 {
8343 MultiBufferRow(selection.end.row - 1)
8344 } else {
8345 MultiBufferRow(selection.end.row)
8346 };
8347 last_toggled_row = Some(end_row);
8348
8349 if start_row > end_row {
8350 continue;
8351 }
8352
8353 // If the language has line comments, toggle those.
8354 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8355
8356 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8357 if ignore_indent {
8358 full_comment_prefixes = full_comment_prefixes
8359 .into_iter()
8360 .map(|s| Arc::from(s.trim_end()))
8361 .collect();
8362 }
8363
8364 if !full_comment_prefixes.is_empty() {
8365 let first_prefix = full_comment_prefixes
8366 .first()
8367 .expect("prefixes is non-empty");
8368 let prefix_trimmed_lengths = full_comment_prefixes
8369 .iter()
8370 .map(|p| p.trim_end_matches(' ').len())
8371 .collect::<SmallVec<[usize; 4]>>();
8372
8373 let mut all_selection_lines_are_comments = true;
8374
8375 for row in start_row.0..=end_row.0 {
8376 let row = MultiBufferRow(row);
8377 if start_row < end_row && snapshot.is_line_blank(row) {
8378 continue;
8379 }
8380
8381 let prefix_range = full_comment_prefixes
8382 .iter()
8383 .zip(prefix_trimmed_lengths.iter().copied())
8384 .map(|(prefix, trimmed_prefix_len)| {
8385 comment_prefix_range(
8386 snapshot.deref(),
8387 row,
8388 &prefix[..trimmed_prefix_len],
8389 &prefix[trimmed_prefix_len..],
8390 ignore_indent,
8391 )
8392 })
8393 .max_by_key(|range| range.end.column - range.start.column)
8394 .expect("prefixes is non-empty");
8395
8396 if prefix_range.is_empty() {
8397 all_selection_lines_are_comments = false;
8398 }
8399
8400 selection_edit_ranges.push(prefix_range);
8401 }
8402
8403 if all_selection_lines_are_comments {
8404 edits.extend(
8405 selection_edit_ranges
8406 .iter()
8407 .cloned()
8408 .map(|range| (range, empty_str.clone())),
8409 );
8410 } else {
8411 let min_column = selection_edit_ranges
8412 .iter()
8413 .map(|range| range.start.column)
8414 .min()
8415 .unwrap_or(0);
8416 edits.extend(selection_edit_ranges.iter().map(|range| {
8417 let position = Point::new(range.start.row, min_column);
8418 (position..position, first_prefix.clone())
8419 }));
8420 }
8421 } else if let Some((full_comment_prefix, comment_suffix)) =
8422 language.block_comment_delimiters()
8423 {
8424 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8425 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8426 let prefix_range = comment_prefix_range(
8427 snapshot.deref(),
8428 start_row,
8429 comment_prefix,
8430 comment_prefix_whitespace,
8431 ignore_indent,
8432 );
8433 let suffix_range = comment_suffix_range(
8434 snapshot.deref(),
8435 end_row,
8436 comment_suffix.trim_start_matches(' '),
8437 comment_suffix.starts_with(' '),
8438 );
8439
8440 if prefix_range.is_empty() || suffix_range.is_empty() {
8441 edits.push((
8442 prefix_range.start..prefix_range.start,
8443 full_comment_prefix.clone(),
8444 ));
8445 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8446 suffixes_inserted.push((end_row, comment_suffix.len()));
8447 } else {
8448 edits.push((prefix_range, empty_str.clone()));
8449 edits.push((suffix_range, empty_str.clone()));
8450 }
8451 } else {
8452 continue;
8453 }
8454 }
8455
8456 drop(snapshot);
8457 this.buffer.update(cx, |buffer, cx| {
8458 buffer.edit(edits, None, cx);
8459 });
8460
8461 // Adjust selections so that they end before any comment suffixes that
8462 // were inserted.
8463 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8464 let mut selections = this.selections.all::<Point>(cx);
8465 let snapshot = this.buffer.read(cx).read(cx);
8466 for selection in &mut selections {
8467 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8468 match row.cmp(&MultiBufferRow(selection.end.row)) {
8469 Ordering::Less => {
8470 suffixes_inserted.next();
8471 continue;
8472 }
8473 Ordering::Greater => break,
8474 Ordering::Equal => {
8475 if selection.end.column == snapshot.line_len(row) {
8476 if selection.is_empty() {
8477 selection.start.column -= suffix_len as u32;
8478 }
8479 selection.end.column -= suffix_len as u32;
8480 }
8481 break;
8482 }
8483 }
8484 }
8485 }
8486
8487 drop(snapshot);
8488 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8489
8490 let selections = this.selections.all::<Point>(cx);
8491 let selections_on_single_row = selections.windows(2).all(|selections| {
8492 selections[0].start.row == selections[1].start.row
8493 && selections[0].end.row == selections[1].end.row
8494 && selections[0].start.row == selections[0].end.row
8495 });
8496 let selections_selecting = selections
8497 .iter()
8498 .any(|selection| selection.start != selection.end);
8499 let advance_downwards = action.advance_downwards
8500 && selections_on_single_row
8501 && !selections_selecting
8502 && !matches!(this.mode, EditorMode::SingleLine { .. });
8503
8504 if advance_downwards {
8505 let snapshot = this.buffer.read(cx).snapshot(cx);
8506
8507 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8508 s.move_cursors_with(|display_snapshot, display_point, _| {
8509 let mut point = display_point.to_point(display_snapshot);
8510 point.row += 1;
8511 point = snapshot.clip_point(point, Bias::Left);
8512 let display_point = point.to_display_point(display_snapshot);
8513 let goal = SelectionGoal::HorizontalPosition(
8514 display_snapshot
8515 .x_for_display_point(display_point, text_layout_details)
8516 .into(),
8517 );
8518 (display_point, goal)
8519 })
8520 });
8521 }
8522 });
8523 }
8524
8525 pub fn select_enclosing_symbol(
8526 &mut self,
8527 _: &SelectEnclosingSymbol,
8528 cx: &mut ViewContext<Self>,
8529 ) {
8530 let buffer = self.buffer.read(cx).snapshot(cx);
8531 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8532
8533 fn update_selection(
8534 selection: &Selection<usize>,
8535 buffer_snap: &MultiBufferSnapshot,
8536 ) -> Option<Selection<usize>> {
8537 let cursor = selection.head();
8538 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8539 for symbol in symbols.iter().rev() {
8540 let start = symbol.range.start.to_offset(buffer_snap);
8541 let end = symbol.range.end.to_offset(buffer_snap);
8542 let new_range = start..end;
8543 if start < selection.start || end > selection.end {
8544 return Some(Selection {
8545 id: selection.id,
8546 start: new_range.start,
8547 end: new_range.end,
8548 goal: SelectionGoal::None,
8549 reversed: selection.reversed,
8550 });
8551 }
8552 }
8553 None
8554 }
8555
8556 let mut selected_larger_symbol = false;
8557 let new_selections = old_selections
8558 .iter()
8559 .map(|selection| match update_selection(selection, &buffer) {
8560 Some(new_selection) => {
8561 if new_selection.range() != selection.range() {
8562 selected_larger_symbol = true;
8563 }
8564 new_selection
8565 }
8566 None => selection.clone(),
8567 })
8568 .collect::<Vec<_>>();
8569
8570 if selected_larger_symbol {
8571 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8572 s.select(new_selections);
8573 });
8574 }
8575 }
8576
8577 pub fn select_larger_syntax_node(
8578 &mut self,
8579 _: &SelectLargerSyntaxNode,
8580 cx: &mut ViewContext<Self>,
8581 ) {
8582 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8583 let buffer = self.buffer.read(cx).snapshot(cx);
8584 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8585
8586 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8587 let mut selected_larger_node = false;
8588 let new_selections = old_selections
8589 .iter()
8590 .map(|selection| {
8591 let old_range = selection.start..selection.end;
8592 let mut new_range = old_range.clone();
8593 while let Some(containing_range) =
8594 buffer.range_for_syntax_ancestor(new_range.clone())
8595 {
8596 new_range = containing_range;
8597 if !display_map.intersects_fold(new_range.start)
8598 && !display_map.intersects_fold(new_range.end)
8599 {
8600 break;
8601 }
8602 }
8603
8604 selected_larger_node |= new_range != old_range;
8605 Selection {
8606 id: selection.id,
8607 start: new_range.start,
8608 end: new_range.end,
8609 goal: SelectionGoal::None,
8610 reversed: selection.reversed,
8611 }
8612 })
8613 .collect::<Vec<_>>();
8614
8615 if selected_larger_node {
8616 stack.push(old_selections);
8617 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8618 s.select(new_selections);
8619 });
8620 }
8621 self.select_larger_syntax_node_stack = stack;
8622 }
8623
8624 pub fn select_smaller_syntax_node(
8625 &mut self,
8626 _: &SelectSmallerSyntaxNode,
8627 cx: &mut ViewContext<Self>,
8628 ) {
8629 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8630 if let Some(selections) = stack.pop() {
8631 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8632 s.select(selections.to_vec());
8633 });
8634 }
8635 self.select_larger_syntax_node_stack = stack;
8636 }
8637
8638 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8639 if !EditorSettings::get_global(cx).gutter.runnables {
8640 self.clear_tasks();
8641 return Task::ready(());
8642 }
8643 let project = self.project.as_ref().map(Model::downgrade);
8644 cx.spawn(|this, mut cx| async move {
8645 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8646 let Some(project) = project.and_then(|p| p.upgrade()) else {
8647 return;
8648 };
8649 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8650 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8651 }) else {
8652 return;
8653 };
8654
8655 let hide_runnables = project
8656 .update(&mut cx, |project, cx| {
8657 // Do not display any test indicators in non-dev server remote projects.
8658 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8659 })
8660 .unwrap_or(true);
8661 if hide_runnables {
8662 return;
8663 }
8664 let new_rows =
8665 cx.background_executor()
8666 .spawn({
8667 let snapshot = display_snapshot.clone();
8668 async move {
8669 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8670 }
8671 })
8672 .await;
8673 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8674
8675 this.update(&mut cx, |this, _| {
8676 this.clear_tasks();
8677 for (key, value) in rows {
8678 this.insert_tasks(key, value);
8679 }
8680 })
8681 .ok();
8682 })
8683 }
8684 fn fetch_runnable_ranges(
8685 snapshot: &DisplaySnapshot,
8686 range: Range<Anchor>,
8687 ) -> Vec<language::RunnableRange> {
8688 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8689 }
8690
8691 fn runnable_rows(
8692 project: Model<Project>,
8693 snapshot: DisplaySnapshot,
8694 runnable_ranges: Vec<RunnableRange>,
8695 mut cx: AsyncWindowContext,
8696 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8697 runnable_ranges
8698 .into_iter()
8699 .filter_map(|mut runnable| {
8700 let tasks = cx
8701 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8702 .ok()?;
8703 if tasks.is_empty() {
8704 return None;
8705 }
8706
8707 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8708
8709 let row = snapshot
8710 .buffer_snapshot
8711 .buffer_line_for_row(MultiBufferRow(point.row))?
8712 .1
8713 .start
8714 .row;
8715
8716 let context_range =
8717 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8718 Some((
8719 (runnable.buffer_id, row),
8720 RunnableTasks {
8721 templates: tasks,
8722 offset: MultiBufferOffset(runnable.run_range.start),
8723 context_range,
8724 column: point.column,
8725 extra_variables: runnable.extra_captures,
8726 },
8727 ))
8728 })
8729 .collect()
8730 }
8731
8732 fn templates_with_tags(
8733 project: &Model<Project>,
8734 runnable: &mut Runnable,
8735 cx: &WindowContext<'_>,
8736 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8737 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8738 let (worktree_id, file) = project
8739 .buffer_for_id(runnable.buffer, cx)
8740 .and_then(|buffer| buffer.read(cx).file())
8741 .map(|file| (file.worktree_id(cx), file.clone()))
8742 .unzip();
8743
8744 (
8745 project.task_store().read(cx).task_inventory().cloned(),
8746 worktree_id,
8747 file,
8748 )
8749 });
8750
8751 let tags = mem::take(&mut runnable.tags);
8752 let mut tags: Vec<_> = tags
8753 .into_iter()
8754 .flat_map(|tag| {
8755 let tag = tag.0.clone();
8756 inventory
8757 .as_ref()
8758 .into_iter()
8759 .flat_map(|inventory| {
8760 inventory.read(cx).list_tasks(
8761 file.clone(),
8762 Some(runnable.language.clone()),
8763 worktree_id,
8764 cx,
8765 )
8766 })
8767 .filter(move |(_, template)| {
8768 template.tags.iter().any(|source_tag| source_tag == &tag)
8769 })
8770 })
8771 .sorted_by_key(|(kind, _)| kind.to_owned())
8772 .collect();
8773 if let Some((leading_tag_source, _)) = tags.first() {
8774 // Strongest source wins; if we have worktree tag binding, prefer that to
8775 // global and language bindings;
8776 // if we have a global binding, prefer that to language binding.
8777 let first_mismatch = tags
8778 .iter()
8779 .position(|(tag_source, _)| tag_source != leading_tag_source);
8780 if let Some(index) = first_mismatch {
8781 tags.truncate(index);
8782 }
8783 }
8784
8785 tags
8786 }
8787
8788 pub fn move_to_enclosing_bracket(
8789 &mut self,
8790 _: &MoveToEnclosingBracket,
8791 cx: &mut ViewContext<Self>,
8792 ) {
8793 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8794 s.move_offsets_with(|snapshot, selection| {
8795 let Some(enclosing_bracket_ranges) =
8796 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8797 else {
8798 return;
8799 };
8800
8801 let mut best_length = usize::MAX;
8802 let mut best_inside = false;
8803 let mut best_in_bracket_range = false;
8804 let mut best_destination = None;
8805 for (open, close) in enclosing_bracket_ranges {
8806 let close = close.to_inclusive();
8807 let length = close.end() - open.start;
8808 let inside = selection.start >= open.end && selection.end <= *close.start();
8809 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8810 || close.contains(&selection.head());
8811
8812 // If best is next to a bracket and current isn't, skip
8813 if !in_bracket_range && best_in_bracket_range {
8814 continue;
8815 }
8816
8817 // Prefer smaller lengths unless best is inside and current isn't
8818 if length > best_length && (best_inside || !inside) {
8819 continue;
8820 }
8821
8822 best_length = length;
8823 best_inside = inside;
8824 best_in_bracket_range = in_bracket_range;
8825 best_destination = Some(
8826 if close.contains(&selection.start) && close.contains(&selection.end) {
8827 if inside {
8828 open.end
8829 } else {
8830 open.start
8831 }
8832 } else if inside {
8833 *close.start()
8834 } else {
8835 *close.end()
8836 },
8837 );
8838 }
8839
8840 if let Some(destination) = best_destination {
8841 selection.collapse_to(destination, SelectionGoal::None);
8842 }
8843 })
8844 });
8845 }
8846
8847 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8848 self.end_selection(cx);
8849 self.selection_history.mode = SelectionHistoryMode::Undoing;
8850 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8851 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8852 self.select_next_state = entry.select_next_state;
8853 self.select_prev_state = entry.select_prev_state;
8854 self.add_selections_state = entry.add_selections_state;
8855 self.request_autoscroll(Autoscroll::newest(), cx);
8856 }
8857 self.selection_history.mode = SelectionHistoryMode::Normal;
8858 }
8859
8860 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8861 self.end_selection(cx);
8862 self.selection_history.mode = SelectionHistoryMode::Redoing;
8863 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8864 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8865 self.select_next_state = entry.select_next_state;
8866 self.select_prev_state = entry.select_prev_state;
8867 self.add_selections_state = entry.add_selections_state;
8868 self.request_autoscroll(Autoscroll::newest(), cx);
8869 }
8870 self.selection_history.mode = SelectionHistoryMode::Normal;
8871 }
8872
8873 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8874 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8875 }
8876
8877 pub fn expand_excerpts_down(
8878 &mut self,
8879 action: &ExpandExcerptsDown,
8880 cx: &mut ViewContext<Self>,
8881 ) {
8882 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8883 }
8884
8885 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8886 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8887 }
8888
8889 pub fn expand_excerpts_for_direction(
8890 &mut self,
8891 lines: u32,
8892 direction: ExpandExcerptDirection,
8893 cx: &mut ViewContext<Self>,
8894 ) {
8895 let selections = self.selections.disjoint_anchors();
8896
8897 let lines = if lines == 0 {
8898 EditorSettings::get_global(cx).expand_excerpt_lines
8899 } else {
8900 lines
8901 };
8902
8903 self.buffer.update(cx, |buffer, cx| {
8904 buffer.expand_excerpts(
8905 selections
8906 .iter()
8907 .map(|selection| selection.head().excerpt_id)
8908 .dedup(),
8909 lines,
8910 direction,
8911 cx,
8912 )
8913 })
8914 }
8915
8916 pub fn expand_excerpt(
8917 &mut self,
8918 excerpt: ExcerptId,
8919 direction: ExpandExcerptDirection,
8920 cx: &mut ViewContext<Self>,
8921 ) {
8922 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8923 self.buffer.update(cx, |buffer, cx| {
8924 buffer.expand_excerpts([excerpt], lines, direction, cx)
8925 })
8926 }
8927
8928 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8929 self.go_to_diagnostic_impl(Direction::Next, cx)
8930 }
8931
8932 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8933 self.go_to_diagnostic_impl(Direction::Prev, cx)
8934 }
8935
8936 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8937 let buffer = self.buffer.read(cx).snapshot(cx);
8938 let selection = self.selections.newest::<usize>(cx);
8939
8940 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8941 if direction == Direction::Next {
8942 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8943 let (group_id, jump_to) = popover.activation_info();
8944 if self.activate_diagnostics(group_id, cx) {
8945 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8946 let mut new_selection = s.newest_anchor().clone();
8947 new_selection.collapse_to(jump_to, SelectionGoal::None);
8948 s.select_anchors(vec![new_selection.clone()]);
8949 });
8950 }
8951 return;
8952 }
8953 }
8954
8955 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8956 active_diagnostics
8957 .primary_range
8958 .to_offset(&buffer)
8959 .to_inclusive()
8960 });
8961 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8962 if active_primary_range.contains(&selection.head()) {
8963 *active_primary_range.start()
8964 } else {
8965 selection.head()
8966 }
8967 } else {
8968 selection.head()
8969 };
8970 let snapshot = self.snapshot(cx);
8971 loop {
8972 let diagnostics = if direction == Direction::Prev {
8973 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8974 } else {
8975 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8976 }
8977 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8978 let group = diagnostics
8979 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8980 // be sorted in a stable way
8981 // skip until we are at current active diagnostic, if it exists
8982 .skip_while(|entry| {
8983 (match direction {
8984 Direction::Prev => entry.range.start >= search_start,
8985 Direction::Next => entry.range.start <= search_start,
8986 }) && self
8987 .active_diagnostics
8988 .as_ref()
8989 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8990 })
8991 .find_map(|entry| {
8992 if entry.diagnostic.is_primary
8993 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8994 && !entry.range.is_empty()
8995 // if we match with the active diagnostic, skip it
8996 && Some(entry.diagnostic.group_id)
8997 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8998 {
8999 Some((entry.range, entry.diagnostic.group_id))
9000 } else {
9001 None
9002 }
9003 });
9004
9005 if let Some((primary_range, group_id)) = group {
9006 if self.activate_diagnostics(group_id, cx) {
9007 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9008 s.select(vec![Selection {
9009 id: selection.id,
9010 start: primary_range.start,
9011 end: primary_range.start,
9012 reversed: false,
9013 goal: SelectionGoal::None,
9014 }]);
9015 });
9016 }
9017 break;
9018 } else {
9019 // Cycle around to the start of the buffer, potentially moving back to the start of
9020 // the currently active diagnostic.
9021 active_primary_range.take();
9022 if direction == Direction::Prev {
9023 if search_start == buffer.len() {
9024 break;
9025 } else {
9026 search_start = buffer.len();
9027 }
9028 } else if search_start == 0 {
9029 break;
9030 } else {
9031 search_start = 0;
9032 }
9033 }
9034 }
9035 }
9036
9037 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9038 let snapshot = self.snapshot(cx);
9039 let selection = self.selections.newest::<Point>(cx);
9040 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9041 }
9042
9043 fn go_to_hunk_after_position(
9044 &mut self,
9045 snapshot: &EditorSnapshot,
9046 position: Point,
9047 cx: &mut ViewContext<'_, Editor>,
9048 ) -> Option<MultiBufferDiffHunk> {
9049 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9050 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9051 snapshot,
9052 position,
9053 ix > 0,
9054 snapshot.diff_map.diff_hunks_in_range(
9055 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9056 &snapshot.buffer_snapshot,
9057 ),
9058 cx,
9059 ) {
9060 return Some(hunk);
9061 }
9062 }
9063 None
9064 }
9065
9066 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9067 let snapshot = self.snapshot(cx);
9068 let selection = self.selections.newest::<Point>(cx);
9069 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9070 }
9071
9072 fn go_to_hunk_before_position(
9073 &mut self,
9074 snapshot: &EditorSnapshot,
9075 position: Point,
9076 cx: &mut ViewContext<'_, Editor>,
9077 ) -> Option<MultiBufferDiffHunk> {
9078 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9079 .into_iter()
9080 .enumerate()
9081 {
9082 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9083 snapshot,
9084 position,
9085 ix > 0,
9086 snapshot
9087 .diff_map
9088 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9089 cx,
9090 ) {
9091 return Some(hunk);
9092 }
9093 }
9094 None
9095 }
9096
9097 fn go_to_next_hunk_in_direction(
9098 &mut self,
9099 snapshot: &DisplaySnapshot,
9100 initial_point: Point,
9101 is_wrapped: bool,
9102 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9103 cx: &mut ViewContext<Editor>,
9104 ) -> Option<MultiBufferDiffHunk> {
9105 let display_point = initial_point.to_display_point(snapshot);
9106 let mut hunks = hunks
9107 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9108 .filter(|(display_hunk, _)| {
9109 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9110 })
9111 .dedup();
9112
9113 if let Some((display_hunk, hunk)) = hunks.next() {
9114 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9115 let row = display_hunk.start_display_row();
9116 let point = DisplayPoint::new(row, 0);
9117 s.select_display_ranges([point..point]);
9118 });
9119
9120 Some(hunk)
9121 } else {
9122 None
9123 }
9124 }
9125
9126 pub fn go_to_definition(
9127 &mut self,
9128 _: &GoToDefinition,
9129 cx: &mut ViewContext<Self>,
9130 ) -> Task<Result<Navigated>> {
9131 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9132 cx.spawn(|editor, mut cx| async move {
9133 if definition.await? == Navigated::Yes {
9134 return Ok(Navigated::Yes);
9135 }
9136 match editor.update(&mut cx, |editor, cx| {
9137 editor.find_all_references(&FindAllReferences, cx)
9138 })? {
9139 Some(references) => references.await,
9140 None => Ok(Navigated::No),
9141 }
9142 })
9143 }
9144
9145 pub fn go_to_declaration(
9146 &mut self,
9147 _: &GoToDeclaration,
9148 cx: &mut ViewContext<Self>,
9149 ) -> Task<Result<Navigated>> {
9150 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9151 }
9152
9153 pub fn go_to_declaration_split(
9154 &mut self,
9155 _: &GoToDeclaration,
9156 cx: &mut ViewContext<Self>,
9157 ) -> Task<Result<Navigated>> {
9158 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9159 }
9160
9161 pub fn go_to_implementation(
9162 &mut self,
9163 _: &GoToImplementation,
9164 cx: &mut ViewContext<Self>,
9165 ) -> Task<Result<Navigated>> {
9166 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9167 }
9168
9169 pub fn go_to_implementation_split(
9170 &mut self,
9171 _: &GoToImplementationSplit,
9172 cx: &mut ViewContext<Self>,
9173 ) -> Task<Result<Navigated>> {
9174 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9175 }
9176
9177 pub fn go_to_type_definition(
9178 &mut self,
9179 _: &GoToTypeDefinition,
9180 cx: &mut ViewContext<Self>,
9181 ) -> Task<Result<Navigated>> {
9182 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9183 }
9184
9185 pub fn go_to_definition_split(
9186 &mut self,
9187 _: &GoToDefinitionSplit,
9188 cx: &mut ViewContext<Self>,
9189 ) -> Task<Result<Navigated>> {
9190 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9191 }
9192
9193 pub fn go_to_type_definition_split(
9194 &mut self,
9195 _: &GoToTypeDefinitionSplit,
9196 cx: &mut ViewContext<Self>,
9197 ) -> Task<Result<Navigated>> {
9198 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9199 }
9200
9201 fn go_to_definition_of_kind(
9202 &mut self,
9203 kind: GotoDefinitionKind,
9204 split: bool,
9205 cx: &mut ViewContext<Self>,
9206 ) -> Task<Result<Navigated>> {
9207 let Some(provider) = self.semantics_provider.clone() else {
9208 return Task::ready(Ok(Navigated::No));
9209 };
9210 let head = self.selections.newest::<usize>(cx).head();
9211 let buffer = self.buffer.read(cx);
9212 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9213 text_anchor
9214 } else {
9215 return Task::ready(Ok(Navigated::No));
9216 };
9217
9218 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9219 return Task::ready(Ok(Navigated::No));
9220 };
9221
9222 cx.spawn(|editor, mut cx| async move {
9223 let definitions = definitions.await?;
9224 let navigated = editor
9225 .update(&mut cx, |editor, cx| {
9226 editor.navigate_to_hover_links(
9227 Some(kind),
9228 definitions
9229 .into_iter()
9230 .filter(|location| {
9231 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9232 })
9233 .map(HoverLink::Text)
9234 .collect::<Vec<_>>(),
9235 split,
9236 cx,
9237 )
9238 })?
9239 .await?;
9240 anyhow::Ok(navigated)
9241 })
9242 }
9243
9244 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9245 let position = self.selections.newest_anchor().head();
9246 let Some((buffer, buffer_position)) =
9247 self.buffer.read(cx).text_anchor_for_position(position, cx)
9248 else {
9249 return;
9250 };
9251
9252 cx.spawn(|editor, mut cx| async move {
9253 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9254 editor.update(&mut cx, |_, cx| {
9255 cx.open_url(&url);
9256 })
9257 } else {
9258 Ok(())
9259 }
9260 })
9261 .detach();
9262 }
9263
9264 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9265 let Some(workspace) = self.workspace() else {
9266 return;
9267 };
9268
9269 let position = self.selections.newest_anchor().head();
9270
9271 let Some((buffer, buffer_position)) =
9272 self.buffer.read(cx).text_anchor_for_position(position, cx)
9273 else {
9274 return;
9275 };
9276
9277 let project = self.project.clone();
9278
9279 cx.spawn(|_, mut cx| async move {
9280 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9281
9282 if let Some((_, path)) = result {
9283 workspace
9284 .update(&mut cx, |workspace, cx| {
9285 workspace.open_resolved_path(path, cx)
9286 })?
9287 .await?;
9288 }
9289 anyhow::Ok(())
9290 })
9291 .detach();
9292 }
9293
9294 pub(crate) fn navigate_to_hover_links(
9295 &mut self,
9296 kind: Option<GotoDefinitionKind>,
9297 mut definitions: Vec<HoverLink>,
9298 split: bool,
9299 cx: &mut ViewContext<Editor>,
9300 ) -> Task<Result<Navigated>> {
9301 // If there is one definition, just open it directly
9302 if definitions.len() == 1 {
9303 let definition = definitions.pop().unwrap();
9304
9305 enum TargetTaskResult {
9306 Location(Option<Location>),
9307 AlreadyNavigated,
9308 }
9309
9310 let target_task = match definition {
9311 HoverLink::Text(link) => {
9312 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9313 }
9314 HoverLink::InlayHint(lsp_location, server_id) => {
9315 let computation = self.compute_target_location(lsp_location, server_id, cx);
9316 cx.background_executor().spawn(async move {
9317 let location = computation.await?;
9318 Ok(TargetTaskResult::Location(location))
9319 })
9320 }
9321 HoverLink::Url(url) => {
9322 cx.open_url(&url);
9323 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9324 }
9325 HoverLink::File(path) => {
9326 if let Some(workspace) = self.workspace() {
9327 cx.spawn(|_, mut cx| async move {
9328 workspace
9329 .update(&mut cx, |workspace, cx| {
9330 workspace.open_resolved_path(path, cx)
9331 })?
9332 .await
9333 .map(|_| TargetTaskResult::AlreadyNavigated)
9334 })
9335 } else {
9336 Task::ready(Ok(TargetTaskResult::Location(None)))
9337 }
9338 }
9339 };
9340 cx.spawn(|editor, mut cx| async move {
9341 let target = match target_task.await.context("target resolution task")? {
9342 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9343 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9344 TargetTaskResult::Location(Some(target)) => target,
9345 };
9346
9347 editor.update(&mut cx, |editor, cx| {
9348 let Some(workspace) = editor.workspace() else {
9349 return Navigated::No;
9350 };
9351 let pane = workspace.read(cx).active_pane().clone();
9352
9353 let range = target.range.to_offset(target.buffer.read(cx));
9354 let range = editor.range_for_match(&range);
9355
9356 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9357 let buffer = target.buffer.read(cx);
9358 let range = check_multiline_range(buffer, range);
9359 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9360 s.select_ranges([range]);
9361 });
9362 } else {
9363 cx.window_context().defer(move |cx| {
9364 let target_editor: View<Self> =
9365 workspace.update(cx, |workspace, cx| {
9366 let pane = if split {
9367 workspace.adjacent_pane(cx)
9368 } else {
9369 workspace.active_pane().clone()
9370 };
9371
9372 workspace.open_project_item(
9373 pane,
9374 target.buffer.clone(),
9375 true,
9376 true,
9377 cx,
9378 )
9379 });
9380 target_editor.update(cx, |target_editor, cx| {
9381 // When selecting a definition in a different buffer, disable the nav history
9382 // to avoid creating a history entry at the previous cursor location.
9383 pane.update(cx, |pane, _| pane.disable_history());
9384 let buffer = target.buffer.read(cx);
9385 let range = check_multiline_range(buffer, range);
9386 target_editor.change_selections(
9387 Some(Autoscroll::focused()),
9388 cx,
9389 |s| {
9390 s.select_ranges([range]);
9391 },
9392 );
9393 pane.update(cx, |pane, _| pane.enable_history());
9394 });
9395 });
9396 }
9397 Navigated::Yes
9398 })
9399 })
9400 } else if !definitions.is_empty() {
9401 cx.spawn(|editor, mut cx| async move {
9402 let (title, location_tasks, workspace) = editor
9403 .update(&mut cx, |editor, cx| {
9404 let tab_kind = match kind {
9405 Some(GotoDefinitionKind::Implementation) => "Implementations",
9406 _ => "Definitions",
9407 };
9408 let title = definitions
9409 .iter()
9410 .find_map(|definition| match definition {
9411 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9412 let buffer = origin.buffer.read(cx);
9413 format!(
9414 "{} for {}",
9415 tab_kind,
9416 buffer
9417 .text_for_range(origin.range.clone())
9418 .collect::<String>()
9419 )
9420 }),
9421 HoverLink::InlayHint(_, _) => None,
9422 HoverLink::Url(_) => None,
9423 HoverLink::File(_) => None,
9424 })
9425 .unwrap_or(tab_kind.to_string());
9426 let location_tasks = definitions
9427 .into_iter()
9428 .map(|definition| match definition {
9429 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9430 HoverLink::InlayHint(lsp_location, server_id) => {
9431 editor.compute_target_location(lsp_location, server_id, cx)
9432 }
9433 HoverLink::Url(_) => Task::ready(Ok(None)),
9434 HoverLink::File(_) => Task::ready(Ok(None)),
9435 })
9436 .collect::<Vec<_>>();
9437 (title, location_tasks, editor.workspace().clone())
9438 })
9439 .context("location tasks preparation")?;
9440
9441 let locations = future::join_all(location_tasks)
9442 .await
9443 .into_iter()
9444 .filter_map(|location| location.transpose())
9445 .collect::<Result<_>>()
9446 .context("location tasks")?;
9447
9448 let Some(workspace) = workspace else {
9449 return Ok(Navigated::No);
9450 };
9451 let opened = workspace
9452 .update(&mut cx, |workspace, cx| {
9453 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9454 })
9455 .ok();
9456
9457 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9458 })
9459 } else {
9460 Task::ready(Ok(Navigated::No))
9461 }
9462 }
9463
9464 fn compute_target_location(
9465 &self,
9466 lsp_location: lsp::Location,
9467 server_id: LanguageServerId,
9468 cx: &mut ViewContext<Self>,
9469 ) -> Task<anyhow::Result<Option<Location>>> {
9470 let Some(project) = self.project.clone() else {
9471 return Task::Ready(Some(Ok(None)));
9472 };
9473
9474 cx.spawn(move |editor, mut cx| async move {
9475 let location_task = editor.update(&mut cx, |_, cx| {
9476 project.update(cx, |project, cx| {
9477 let language_server_name = project
9478 .language_server_statuses(cx)
9479 .find(|(id, _)| server_id == *id)
9480 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9481 language_server_name.map(|language_server_name| {
9482 project.open_local_buffer_via_lsp(
9483 lsp_location.uri.clone(),
9484 server_id,
9485 language_server_name,
9486 cx,
9487 )
9488 })
9489 })
9490 })?;
9491 let location = match location_task {
9492 Some(task) => Some({
9493 let target_buffer_handle = task.await.context("open local buffer")?;
9494 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9495 let target_start = target_buffer
9496 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9497 let target_end = target_buffer
9498 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9499 target_buffer.anchor_after(target_start)
9500 ..target_buffer.anchor_before(target_end)
9501 })?;
9502 Location {
9503 buffer: target_buffer_handle,
9504 range,
9505 }
9506 }),
9507 None => None,
9508 };
9509 Ok(location)
9510 })
9511 }
9512
9513 pub fn find_all_references(
9514 &mut self,
9515 _: &FindAllReferences,
9516 cx: &mut ViewContext<Self>,
9517 ) -> Option<Task<Result<Navigated>>> {
9518 let selection = self.selections.newest::<usize>(cx);
9519 let multi_buffer = self.buffer.read(cx);
9520 let head = selection.head();
9521
9522 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9523 let head_anchor = multi_buffer_snapshot.anchor_at(
9524 head,
9525 if head < selection.tail() {
9526 Bias::Right
9527 } else {
9528 Bias::Left
9529 },
9530 );
9531
9532 match self
9533 .find_all_references_task_sources
9534 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9535 {
9536 Ok(_) => {
9537 log::info!(
9538 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9539 );
9540 return None;
9541 }
9542 Err(i) => {
9543 self.find_all_references_task_sources.insert(i, head_anchor);
9544 }
9545 }
9546
9547 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9548 let workspace = self.workspace()?;
9549 let project = workspace.read(cx).project().clone();
9550 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9551 Some(cx.spawn(|editor, mut cx| async move {
9552 let _cleanup = defer({
9553 let mut cx = cx.clone();
9554 move || {
9555 let _ = editor.update(&mut cx, |editor, _| {
9556 if let Ok(i) =
9557 editor
9558 .find_all_references_task_sources
9559 .binary_search_by(|anchor| {
9560 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9561 })
9562 {
9563 editor.find_all_references_task_sources.remove(i);
9564 }
9565 });
9566 }
9567 });
9568
9569 let locations = references.await?;
9570 if locations.is_empty() {
9571 return anyhow::Ok(Navigated::No);
9572 }
9573
9574 workspace.update(&mut cx, |workspace, cx| {
9575 let title = locations
9576 .first()
9577 .as_ref()
9578 .map(|location| {
9579 let buffer = location.buffer.read(cx);
9580 format!(
9581 "References to `{}`",
9582 buffer
9583 .text_for_range(location.range.clone())
9584 .collect::<String>()
9585 )
9586 })
9587 .unwrap();
9588 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9589 Navigated::Yes
9590 })
9591 }))
9592 }
9593
9594 /// Opens a multibuffer with the given project locations in it
9595 pub fn open_locations_in_multibuffer(
9596 workspace: &mut Workspace,
9597 mut locations: Vec<Location>,
9598 title: String,
9599 split: bool,
9600 cx: &mut ViewContext<Workspace>,
9601 ) {
9602 // If there are multiple definitions, open them in a multibuffer
9603 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9604 let mut locations = locations.into_iter().peekable();
9605 let mut ranges_to_highlight = Vec::new();
9606 let capability = workspace.project().read(cx).capability();
9607
9608 let excerpt_buffer = cx.new_model(|cx| {
9609 let mut multibuffer = MultiBuffer::new(capability);
9610 while let Some(location) = locations.next() {
9611 let buffer = location.buffer.read(cx);
9612 let mut ranges_for_buffer = Vec::new();
9613 let range = location.range.to_offset(buffer);
9614 ranges_for_buffer.push(range.clone());
9615
9616 while let Some(next_location) = locations.peek() {
9617 if next_location.buffer == location.buffer {
9618 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9619 locations.next();
9620 } else {
9621 break;
9622 }
9623 }
9624
9625 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9626 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9627 location.buffer.clone(),
9628 ranges_for_buffer,
9629 DEFAULT_MULTIBUFFER_CONTEXT,
9630 cx,
9631 ))
9632 }
9633
9634 multibuffer.with_title(title)
9635 });
9636
9637 let editor = cx.new_view(|cx| {
9638 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9639 });
9640 editor.update(cx, |editor, cx| {
9641 if let Some(first_range) = ranges_to_highlight.first() {
9642 editor.change_selections(None, cx, |selections| {
9643 selections.clear_disjoint();
9644 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9645 });
9646 }
9647 editor.highlight_background::<Self>(
9648 &ranges_to_highlight,
9649 |theme| theme.editor_highlighted_line_background,
9650 cx,
9651 );
9652 });
9653
9654 let item = Box::new(editor);
9655 let item_id = item.item_id();
9656
9657 if split {
9658 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9659 } else {
9660 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9661 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9662 pane.close_current_preview_item(cx)
9663 } else {
9664 None
9665 }
9666 });
9667 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9668 }
9669 workspace.active_pane().update(cx, |pane, cx| {
9670 pane.set_preview_item_id(Some(item_id), cx);
9671 });
9672 }
9673
9674 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9675 use language::ToOffset as _;
9676
9677 let provider = self.semantics_provider.clone()?;
9678 let selection = self.selections.newest_anchor().clone();
9679 let (cursor_buffer, cursor_buffer_position) = self
9680 .buffer
9681 .read(cx)
9682 .text_anchor_for_position(selection.head(), cx)?;
9683 let (tail_buffer, cursor_buffer_position_end) = self
9684 .buffer
9685 .read(cx)
9686 .text_anchor_for_position(selection.tail(), cx)?;
9687 if tail_buffer != cursor_buffer {
9688 return None;
9689 }
9690
9691 let snapshot = cursor_buffer.read(cx).snapshot();
9692 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9693 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9694 let prepare_rename = provider
9695 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9696 .unwrap_or_else(|| Task::ready(Ok(None)));
9697 drop(snapshot);
9698
9699 Some(cx.spawn(|this, mut cx| async move {
9700 let rename_range = if let Some(range) = prepare_rename.await? {
9701 Some(range)
9702 } else {
9703 this.update(&mut cx, |this, cx| {
9704 let buffer = this.buffer.read(cx).snapshot(cx);
9705 let mut buffer_highlights = this
9706 .document_highlights_for_position(selection.head(), &buffer)
9707 .filter(|highlight| {
9708 highlight.start.excerpt_id == selection.head().excerpt_id
9709 && highlight.end.excerpt_id == selection.head().excerpt_id
9710 });
9711 buffer_highlights
9712 .next()
9713 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9714 })?
9715 };
9716 if let Some(rename_range) = rename_range {
9717 this.update(&mut cx, |this, cx| {
9718 let snapshot = cursor_buffer.read(cx).snapshot();
9719 let rename_buffer_range = rename_range.to_offset(&snapshot);
9720 let cursor_offset_in_rename_range =
9721 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9722 let cursor_offset_in_rename_range_end =
9723 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9724
9725 this.take_rename(false, cx);
9726 let buffer = this.buffer.read(cx).read(cx);
9727 let cursor_offset = selection.head().to_offset(&buffer);
9728 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9729 let rename_end = rename_start + rename_buffer_range.len();
9730 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9731 let mut old_highlight_id = None;
9732 let old_name: Arc<str> = buffer
9733 .chunks(rename_start..rename_end, true)
9734 .map(|chunk| {
9735 if old_highlight_id.is_none() {
9736 old_highlight_id = chunk.syntax_highlight_id;
9737 }
9738 chunk.text
9739 })
9740 .collect::<String>()
9741 .into();
9742
9743 drop(buffer);
9744
9745 // Position the selection in the rename editor so that it matches the current selection.
9746 this.show_local_selections = false;
9747 let rename_editor = cx.new_view(|cx| {
9748 let mut editor = Editor::single_line(cx);
9749 editor.buffer.update(cx, |buffer, cx| {
9750 buffer.edit([(0..0, old_name.clone())], None, cx)
9751 });
9752 let rename_selection_range = match cursor_offset_in_rename_range
9753 .cmp(&cursor_offset_in_rename_range_end)
9754 {
9755 Ordering::Equal => {
9756 editor.select_all(&SelectAll, cx);
9757 return editor;
9758 }
9759 Ordering::Less => {
9760 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9761 }
9762 Ordering::Greater => {
9763 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9764 }
9765 };
9766 if rename_selection_range.end > old_name.len() {
9767 editor.select_all(&SelectAll, cx);
9768 } else {
9769 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9770 s.select_ranges([rename_selection_range]);
9771 });
9772 }
9773 editor
9774 });
9775 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
9776 if e == &EditorEvent::Focused {
9777 cx.emit(EditorEvent::FocusedIn)
9778 }
9779 })
9780 .detach();
9781
9782 let write_highlights =
9783 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9784 let read_highlights =
9785 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9786 let ranges = write_highlights
9787 .iter()
9788 .flat_map(|(_, ranges)| ranges.iter())
9789 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9790 .cloned()
9791 .collect();
9792
9793 this.highlight_text::<Rename>(
9794 ranges,
9795 HighlightStyle {
9796 fade_out: Some(0.6),
9797 ..Default::default()
9798 },
9799 cx,
9800 );
9801 let rename_focus_handle = rename_editor.focus_handle(cx);
9802 cx.focus(&rename_focus_handle);
9803 let block_id = this.insert_blocks(
9804 [BlockProperties {
9805 style: BlockStyle::Flex,
9806 placement: BlockPlacement::Below(range.start),
9807 height: 1,
9808 render: Arc::new({
9809 let rename_editor = rename_editor.clone();
9810 move |cx: &mut BlockContext| {
9811 let mut text_style = cx.editor_style.text.clone();
9812 if let Some(highlight_style) = old_highlight_id
9813 .and_then(|h| h.style(&cx.editor_style.syntax))
9814 {
9815 text_style = text_style.highlight(highlight_style);
9816 }
9817 div()
9818 .block_mouse_down()
9819 .pl(cx.anchor_x)
9820 .child(EditorElement::new(
9821 &rename_editor,
9822 EditorStyle {
9823 background: cx.theme().system().transparent,
9824 local_player: cx.editor_style.local_player,
9825 text: text_style,
9826 scrollbar_width: cx.editor_style.scrollbar_width,
9827 syntax: cx.editor_style.syntax.clone(),
9828 status: cx.editor_style.status.clone(),
9829 inlay_hints_style: HighlightStyle {
9830 font_weight: Some(FontWeight::BOLD),
9831 ..make_inlay_hints_style(cx)
9832 },
9833 suggestions_style: HighlightStyle {
9834 color: Some(cx.theme().status().predictive),
9835 ..HighlightStyle::default()
9836 },
9837 ..EditorStyle::default()
9838 },
9839 ))
9840 .into_any_element()
9841 }
9842 }),
9843 priority: 0,
9844 }],
9845 Some(Autoscroll::fit()),
9846 cx,
9847 )[0];
9848 this.pending_rename = Some(RenameState {
9849 range,
9850 old_name,
9851 editor: rename_editor,
9852 block_id,
9853 });
9854 })?;
9855 }
9856
9857 Ok(())
9858 }))
9859 }
9860
9861 pub fn confirm_rename(
9862 &mut self,
9863 _: &ConfirmRename,
9864 cx: &mut ViewContext<Self>,
9865 ) -> Option<Task<Result<()>>> {
9866 let rename = self.take_rename(false, cx)?;
9867 let workspace = self.workspace()?.downgrade();
9868 let (buffer, start) = self
9869 .buffer
9870 .read(cx)
9871 .text_anchor_for_position(rename.range.start, cx)?;
9872 let (end_buffer, _) = self
9873 .buffer
9874 .read(cx)
9875 .text_anchor_for_position(rename.range.end, cx)?;
9876 if buffer != end_buffer {
9877 return None;
9878 }
9879
9880 let old_name = rename.old_name;
9881 let new_name = rename.editor.read(cx).text(cx);
9882
9883 let rename = self.semantics_provider.as_ref()?.perform_rename(
9884 &buffer,
9885 start,
9886 new_name.clone(),
9887 cx,
9888 )?;
9889
9890 Some(cx.spawn(|editor, mut cx| async move {
9891 let project_transaction = rename.await?;
9892 Self::open_project_transaction(
9893 &editor,
9894 workspace,
9895 project_transaction,
9896 format!("Rename: {} → {}", old_name, new_name),
9897 cx.clone(),
9898 )
9899 .await?;
9900
9901 editor.update(&mut cx, |editor, cx| {
9902 editor.refresh_document_highlights(cx);
9903 })?;
9904 Ok(())
9905 }))
9906 }
9907
9908 fn take_rename(
9909 &mut self,
9910 moving_cursor: bool,
9911 cx: &mut ViewContext<Self>,
9912 ) -> Option<RenameState> {
9913 let rename = self.pending_rename.take()?;
9914 if rename.editor.focus_handle(cx).is_focused(cx) {
9915 cx.focus(&self.focus_handle);
9916 }
9917
9918 self.remove_blocks(
9919 [rename.block_id].into_iter().collect(),
9920 Some(Autoscroll::fit()),
9921 cx,
9922 );
9923 self.clear_highlights::<Rename>(cx);
9924 self.show_local_selections = true;
9925
9926 if moving_cursor {
9927 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
9928 editor.selections.newest::<usize>(cx).head()
9929 });
9930
9931 // Update the selection to match the position of the selection inside
9932 // the rename editor.
9933 let snapshot = self.buffer.read(cx).read(cx);
9934 let rename_range = rename.range.to_offset(&snapshot);
9935 let cursor_in_editor = snapshot
9936 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9937 .min(rename_range.end);
9938 drop(snapshot);
9939
9940 self.change_selections(None, cx, |s| {
9941 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9942 });
9943 } else {
9944 self.refresh_document_highlights(cx);
9945 }
9946
9947 Some(rename)
9948 }
9949
9950 pub fn pending_rename(&self) -> Option<&RenameState> {
9951 self.pending_rename.as_ref()
9952 }
9953
9954 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9955 let project = match &self.project {
9956 Some(project) => project.clone(),
9957 None => return None,
9958 };
9959
9960 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
9961 }
9962
9963 fn format_selections(
9964 &mut self,
9965 _: &FormatSelections,
9966 cx: &mut ViewContext<Self>,
9967 ) -> Option<Task<Result<()>>> {
9968 let project = match &self.project {
9969 Some(project) => project.clone(),
9970 None => return None,
9971 };
9972
9973 let selections = self
9974 .selections
9975 .all_adjusted(cx)
9976 .into_iter()
9977 .filter(|s| !s.is_empty())
9978 .collect_vec();
9979
9980 Some(self.perform_format(
9981 project,
9982 FormatTrigger::Manual,
9983 FormatTarget::Ranges(selections),
9984 cx,
9985 ))
9986 }
9987
9988 fn perform_format(
9989 &mut self,
9990 project: Model<Project>,
9991 trigger: FormatTrigger,
9992 target: FormatTarget,
9993 cx: &mut ViewContext<Self>,
9994 ) -> Task<Result<()>> {
9995 let buffer = self.buffer().clone();
9996 let mut buffers = buffer.read(cx).all_buffers();
9997 if trigger == FormatTrigger::Save {
9998 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9999 }
10000
10001 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10002 let format = project.update(cx, |project, cx| {
10003 project.format(buffers, true, trigger, target, cx)
10004 });
10005
10006 cx.spawn(|_, mut cx| async move {
10007 let transaction = futures::select_biased! {
10008 () = timeout => {
10009 log::warn!("timed out waiting for formatting");
10010 None
10011 }
10012 transaction = format.log_err().fuse() => transaction,
10013 };
10014
10015 buffer
10016 .update(&mut cx, |buffer, cx| {
10017 if let Some(transaction) = transaction {
10018 if !buffer.is_singleton() {
10019 buffer.push_transaction(&transaction.0, cx);
10020 }
10021 }
10022
10023 cx.notify();
10024 })
10025 .ok();
10026
10027 Ok(())
10028 })
10029 }
10030
10031 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10032 if let Some(project) = self.project.clone() {
10033 self.buffer.update(cx, |multi_buffer, cx| {
10034 project.update(cx, |project, cx| {
10035 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10036 });
10037 })
10038 }
10039 }
10040
10041 fn cancel_language_server_work(
10042 &mut self,
10043 _: &actions::CancelLanguageServerWork,
10044 cx: &mut ViewContext<Self>,
10045 ) {
10046 if let Some(project) = self.project.clone() {
10047 self.buffer.update(cx, |multi_buffer, cx| {
10048 project.update(cx, |project, cx| {
10049 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10050 });
10051 })
10052 }
10053 }
10054
10055 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10056 cx.show_character_palette();
10057 }
10058
10059 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10060 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10061 let buffer = self.buffer.read(cx).snapshot(cx);
10062 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10063 let is_valid = buffer
10064 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10065 .any(|entry| {
10066 entry.diagnostic.is_primary
10067 && !entry.range.is_empty()
10068 && entry.range.start == primary_range_start
10069 && entry.diagnostic.message == active_diagnostics.primary_message
10070 });
10071
10072 if is_valid != active_diagnostics.is_valid {
10073 active_diagnostics.is_valid = is_valid;
10074 let mut new_styles = HashMap::default();
10075 for (block_id, diagnostic) in &active_diagnostics.blocks {
10076 new_styles.insert(
10077 *block_id,
10078 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10079 );
10080 }
10081 self.display_map.update(cx, |display_map, _cx| {
10082 display_map.replace_blocks(new_styles)
10083 });
10084 }
10085 }
10086 }
10087
10088 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10089 self.dismiss_diagnostics(cx);
10090 let snapshot = self.snapshot(cx);
10091 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10092 let buffer = self.buffer.read(cx).snapshot(cx);
10093
10094 let mut primary_range = None;
10095 let mut primary_message = None;
10096 let mut group_end = Point::zero();
10097 let diagnostic_group = buffer
10098 .diagnostic_group::<MultiBufferPoint>(group_id)
10099 .filter_map(|entry| {
10100 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10101 && (entry.range.start.row == entry.range.end.row
10102 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10103 {
10104 return None;
10105 }
10106 if entry.range.end > group_end {
10107 group_end = entry.range.end;
10108 }
10109 if entry.diagnostic.is_primary {
10110 primary_range = Some(entry.range.clone());
10111 primary_message = Some(entry.diagnostic.message.clone());
10112 }
10113 Some(entry)
10114 })
10115 .collect::<Vec<_>>();
10116 let primary_range = primary_range?;
10117 let primary_message = primary_message?;
10118 let primary_range =
10119 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10120
10121 let blocks = display_map
10122 .insert_blocks(
10123 diagnostic_group.iter().map(|entry| {
10124 let diagnostic = entry.diagnostic.clone();
10125 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10126 BlockProperties {
10127 style: BlockStyle::Fixed,
10128 placement: BlockPlacement::Below(
10129 buffer.anchor_after(entry.range.start),
10130 ),
10131 height: message_height,
10132 render: diagnostic_block_renderer(diagnostic, None, true, true),
10133 priority: 0,
10134 }
10135 }),
10136 cx,
10137 )
10138 .into_iter()
10139 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10140 .collect();
10141
10142 Some(ActiveDiagnosticGroup {
10143 primary_range,
10144 primary_message,
10145 group_id,
10146 blocks,
10147 is_valid: true,
10148 })
10149 });
10150 self.active_diagnostics.is_some()
10151 }
10152
10153 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10154 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10155 self.display_map.update(cx, |display_map, cx| {
10156 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10157 });
10158 cx.notify();
10159 }
10160 }
10161
10162 pub fn set_selections_from_remote(
10163 &mut self,
10164 selections: Vec<Selection<Anchor>>,
10165 pending_selection: Option<Selection<Anchor>>,
10166 cx: &mut ViewContext<Self>,
10167 ) {
10168 let old_cursor_position = self.selections.newest_anchor().head();
10169 self.selections.change_with(cx, |s| {
10170 s.select_anchors(selections);
10171 if let Some(pending_selection) = pending_selection {
10172 s.set_pending(pending_selection, SelectMode::Character);
10173 } else {
10174 s.clear_pending();
10175 }
10176 });
10177 self.selections_did_change(false, &old_cursor_position, true, cx);
10178 }
10179
10180 fn push_to_selection_history(&mut self) {
10181 self.selection_history.push(SelectionHistoryEntry {
10182 selections: self.selections.disjoint_anchors(),
10183 select_next_state: self.select_next_state.clone(),
10184 select_prev_state: self.select_prev_state.clone(),
10185 add_selections_state: self.add_selections_state.clone(),
10186 });
10187 }
10188
10189 pub fn transact(
10190 &mut self,
10191 cx: &mut ViewContext<Self>,
10192 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10193 ) -> Option<TransactionId> {
10194 self.start_transaction_at(Instant::now(), cx);
10195 update(self, cx);
10196 self.end_transaction_at(Instant::now(), cx)
10197 }
10198
10199 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10200 self.end_selection(cx);
10201 if let Some(tx_id) = self
10202 .buffer
10203 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10204 {
10205 self.selection_history
10206 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10207 cx.emit(EditorEvent::TransactionBegun {
10208 transaction_id: tx_id,
10209 })
10210 }
10211 }
10212
10213 fn end_transaction_at(
10214 &mut self,
10215 now: Instant,
10216 cx: &mut ViewContext<Self>,
10217 ) -> Option<TransactionId> {
10218 if let Some(transaction_id) = self
10219 .buffer
10220 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10221 {
10222 if let Some((_, end_selections)) =
10223 self.selection_history.transaction_mut(transaction_id)
10224 {
10225 *end_selections = Some(self.selections.disjoint_anchors());
10226 } else {
10227 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10228 }
10229
10230 cx.emit(EditorEvent::Edited { transaction_id });
10231 Some(transaction_id)
10232 } else {
10233 None
10234 }
10235 }
10236
10237 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10238 let selection = self.selections.newest::<Point>(cx);
10239
10240 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10241 let range = if selection.is_empty() {
10242 let point = selection.head().to_display_point(&display_map);
10243 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10244 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10245 .to_point(&display_map);
10246 start..end
10247 } else {
10248 selection.range()
10249 };
10250 if display_map.folds_in_range(range).next().is_some() {
10251 self.unfold_lines(&Default::default(), cx)
10252 } else {
10253 self.fold(&Default::default(), cx)
10254 }
10255 }
10256
10257 pub fn toggle_fold_recursive(
10258 &mut self,
10259 _: &actions::ToggleFoldRecursive,
10260 cx: &mut ViewContext<Self>,
10261 ) {
10262 let selection = self.selections.newest::<Point>(cx);
10263
10264 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10265 let range = if selection.is_empty() {
10266 let point = selection.head().to_display_point(&display_map);
10267 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10268 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10269 .to_point(&display_map);
10270 start..end
10271 } else {
10272 selection.range()
10273 };
10274 if display_map.folds_in_range(range).next().is_some() {
10275 self.unfold_recursive(&Default::default(), cx)
10276 } else {
10277 self.fold_recursive(&Default::default(), cx)
10278 }
10279 }
10280
10281 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10282 let mut to_fold = Vec::new();
10283 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10284 let selections = self.selections.all_adjusted(cx);
10285
10286 for selection in selections {
10287 let range = selection.range().sorted();
10288 let buffer_start_row = range.start.row;
10289
10290 if range.start.row != range.end.row {
10291 let mut found = false;
10292 let mut row = range.start.row;
10293 while row <= range.end.row {
10294 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10295 found = true;
10296 row = crease.range().end.row + 1;
10297 to_fold.push(crease);
10298 } else {
10299 row += 1
10300 }
10301 }
10302 if found {
10303 continue;
10304 }
10305 }
10306
10307 for row in (0..=range.start.row).rev() {
10308 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10309 if crease.range().end.row >= buffer_start_row {
10310 to_fold.push(crease);
10311 if row <= range.start.row {
10312 break;
10313 }
10314 }
10315 }
10316 }
10317 }
10318
10319 self.fold_creases(to_fold, true, cx);
10320 }
10321
10322 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10323 if !self.buffer.read(cx).is_singleton() {
10324 return;
10325 }
10326
10327 let fold_at_level = fold_at.level;
10328 let snapshot = self.buffer.read(cx).snapshot(cx);
10329 let mut to_fold = Vec::new();
10330 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10331
10332 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10333 while start_row < end_row {
10334 match self
10335 .snapshot(cx)
10336 .crease_for_buffer_row(MultiBufferRow(start_row))
10337 {
10338 Some(crease) => {
10339 let nested_start_row = crease.range().start.row + 1;
10340 let nested_end_row = crease.range().end.row;
10341
10342 if current_level < fold_at_level {
10343 stack.push((nested_start_row, nested_end_row, current_level + 1));
10344 } else if current_level == fold_at_level {
10345 to_fold.push(crease);
10346 }
10347
10348 start_row = nested_end_row + 1;
10349 }
10350 None => start_row += 1,
10351 }
10352 }
10353 }
10354
10355 self.fold_creases(to_fold, true, cx);
10356 }
10357
10358 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10359 if !self.buffer.read(cx).is_singleton() {
10360 return;
10361 }
10362
10363 let mut fold_ranges = Vec::new();
10364 let snapshot = self.buffer.read(cx).snapshot(cx);
10365
10366 for row in 0..snapshot.max_row().0 {
10367 if let Some(foldable_range) =
10368 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10369 {
10370 fold_ranges.push(foldable_range);
10371 }
10372 }
10373
10374 self.fold_creases(fold_ranges, true, cx);
10375 }
10376
10377 pub fn fold_function_bodies(
10378 &mut self,
10379 _: &actions::FoldFunctionBodies,
10380 cx: &mut ViewContext<Self>,
10381 ) {
10382 let snapshot = self.buffer.read(cx).snapshot(cx);
10383 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10384 return;
10385 };
10386 let creases = buffer
10387 .function_body_fold_ranges(0..buffer.len())
10388 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10389 .collect();
10390
10391 self.fold_creases(creases, true, cx);
10392 }
10393
10394 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10395 let mut to_fold = Vec::new();
10396 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10397 let selections = self.selections.all_adjusted(cx);
10398
10399 for selection in selections {
10400 let range = selection.range().sorted();
10401 let buffer_start_row = range.start.row;
10402
10403 if range.start.row != range.end.row {
10404 let mut found = false;
10405 for row in range.start.row..=range.end.row {
10406 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10407 found = true;
10408 to_fold.push(crease);
10409 }
10410 }
10411 if found {
10412 continue;
10413 }
10414 }
10415
10416 for row in (0..=range.start.row).rev() {
10417 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10418 if crease.range().end.row >= buffer_start_row {
10419 to_fold.push(crease);
10420 } else {
10421 break;
10422 }
10423 }
10424 }
10425 }
10426
10427 self.fold_creases(to_fold, true, cx);
10428 }
10429
10430 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10431 let buffer_row = fold_at.buffer_row;
10432 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10433
10434 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10435 let autoscroll = self
10436 .selections
10437 .all::<Point>(cx)
10438 .iter()
10439 .any(|selection| crease.range().overlaps(&selection.range()));
10440
10441 self.fold_creases(vec![crease], autoscroll, cx);
10442 }
10443 }
10444
10445 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10446 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10447 let buffer = &display_map.buffer_snapshot;
10448 let selections = self.selections.all::<Point>(cx);
10449 let ranges = selections
10450 .iter()
10451 .map(|s| {
10452 let range = s.display_range(&display_map).sorted();
10453 let mut start = range.start.to_point(&display_map);
10454 let mut end = range.end.to_point(&display_map);
10455 start.column = 0;
10456 end.column = buffer.line_len(MultiBufferRow(end.row));
10457 start..end
10458 })
10459 .collect::<Vec<_>>();
10460
10461 self.unfold_ranges(&ranges, true, true, cx);
10462 }
10463
10464 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10465 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10466 let selections = self.selections.all::<Point>(cx);
10467 let ranges = selections
10468 .iter()
10469 .map(|s| {
10470 let mut range = s.display_range(&display_map).sorted();
10471 *range.start.column_mut() = 0;
10472 *range.end.column_mut() = display_map.line_len(range.end.row());
10473 let start = range.start.to_point(&display_map);
10474 let end = range.end.to_point(&display_map);
10475 start..end
10476 })
10477 .collect::<Vec<_>>();
10478
10479 self.unfold_ranges(&ranges, true, true, cx);
10480 }
10481
10482 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10483 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10484
10485 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10486 ..Point::new(
10487 unfold_at.buffer_row.0,
10488 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10489 );
10490
10491 let autoscroll = self
10492 .selections
10493 .all::<Point>(cx)
10494 .iter()
10495 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10496
10497 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10498 }
10499
10500 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10501 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10502 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10503 }
10504
10505 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10506 let selections = self.selections.all::<Point>(cx);
10507 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10508 let line_mode = self.selections.line_mode;
10509 let ranges = selections
10510 .into_iter()
10511 .map(|s| {
10512 if line_mode {
10513 let start = Point::new(s.start.row, 0);
10514 let end = Point::new(
10515 s.end.row,
10516 display_map
10517 .buffer_snapshot
10518 .line_len(MultiBufferRow(s.end.row)),
10519 );
10520 Crease::simple(start..end, display_map.fold_placeholder.clone())
10521 } else {
10522 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10523 }
10524 })
10525 .collect::<Vec<_>>();
10526 self.fold_creases(ranges, true, cx);
10527 }
10528
10529 pub fn fold_creases<T: ToOffset + Clone>(
10530 &mut self,
10531 creases: Vec<Crease<T>>,
10532 auto_scroll: bool,
10533 cx: &mut ViewContext<Self>,
10534 ) {
10535 if creases.is_empty() {
10536 return;
10537 }
10538
10539 let mut buffers_affected = HashSet::default();
10540 let multi_buffer = self.buffer().read(cx);
10541 for crease in &creases {
10542 if let Some((_, buffer, _)) =
10543 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10544 {
10545 buffers_affected.insert(buffer.read(cx).remote_id());
10546 };
10547 }
10548
10549 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10550
10551 if auto_scroll {
10552 self.request_autoscroll(Autoscroll::fit(), cx);
10553 }
10554
10555 for buffer_id in buffers_affected {
10556 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10557 }
10558
10559 cx.notify();
10560
10561 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10562 // Clear diagnostics block when folding a range that contains it.
10563 let snapshot = self.snapshot(cx);
10564 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10565 drop(snapshot);
10566 self.active_diagnostics = Some(active_diagnostics);
10567 self.dismiss_diagnostics(cx);
10568 } else {
10569 self.active_diagnostics = Some(active_diagnostics);
10570 }
10571 }
10572
10573 self.scrollbar_marker_state.dirty = true;
10574 }
10575
10576 /// Removes any folds whose ranges intersect any of the given ranges.
10577 pub fn unfold_ranges<T: ToOffset + Clone>(
10578 &mut self,
10579 ranges: &[Range<T>],
10580 inclusive: bool,
10581 auto_scroll: bool,
10582 cx: &mut ViewContext<Self>,
10583 ) {
10584 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10585 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10586 });
10587 }
10588
10589 /// Removes any folds with the given ranges.
10590 pub fn remove_folds_with_type<T: ToOffset + Clone>(
10591 &mut self,
10592 ranges: &[Range<T>],
10593 type_id: TypeId,
10594 auto_scroll: bool,
10595 cx: &mut ViewContext<Self>,
10596 ) {
10597 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10598 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
10599 });
10600 }
10601
10602 fn remove_folds_with<T: ToOffset + Clone>(
10603 &mut self,
10604 ranges: &[Range<T>],
10605 auto_scroll: bool,
10606 cx: &mut ViewContext<Self>,
10607 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
10608 ) {
10609 if ranges.is_empty() {
10610 return;
10611 }
10612
10613 let mut buffers_affected = HashSet::default();
10614 let multi_buffer = self.buffer().read(cx);
10615 for range in ranges {
10616 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10617 buffers_affected.insert(buffer.read(cx).remote_id());
10618 };
10619 }
10620
10621 self.display_map.update(cx, update);
10622
10623 if auto_scroll {
10624 self.request_autoscroll(Autoscroll::fit(), cx);
10625 }
10626
10627 for buffer_id in buffers_affected {
10628 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10629 }
10630
10631 cx.notify();
10632 self.scrollbar_marker_state.dirty = true;
10633 self.active_indent_guides_state.dirty = true;
10634 }
10635
10636 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10637 self.display_map.read(cx).fold_placeholder.clone()
10638 }
10639
10640 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10641 if hovered != self.gutter_hovered {
10642 self.gutter_hovered = hovered;
10643 cx.notify();
10644 }
10645 }
10646
10647 pub fn insert_blocks(
10648 &mut self,
10649 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10650 autoscroll: Option<Autoscroll>,
10651 cx: &mut ViewContext<Self>,
10652 ) -> Vec<CustomBlockId> {
10653 let blocks = self
10654 .display_map
10655 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10656 if let Some(autoscroll) = autoscroll {
10657 self.request_autoscroll(autoscroll, cx);
10658 }
10659 cx.notify();
10660 blocks
10661 }
10662
10663 pub fn resize_blocks(
10664 &mut self,
10665 heights: HashMap<CustomBlockId, u32>,
10666 autoscroll: Option<Autoscroll>,
10667 cx: &mut ViewContext<Self>,
10668 ) {
10669 self.display_map
10670 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
10671 if let Some(autoscroll) = autoscroll {
10672 self.request_autoscroll(autoscroll, cx);
10673 }
10674 cx.notify();
10675 }
10676
10677 pub fn replace_blocks(
10678 &mut self,
10679 renderers: HashMap<CustomBlockId, RenderBlock>,
10680 autoscroll: Option<Autoscroll>,
10681 cx: &mut ViewContext<Self>,
10682 ) {
10683 self.display_map
10684 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
10685 if let Some(autoscroll) = autoscroll {
10686 self.request_autoscroll(autoscroll, cx);
10687 }
10688 cx.notify();
10689 }
10690
10691 pub fn remove_blocks(
10692 &mut self,
10693 block_ids: HashSet<CustomBlockId>,
10694 autoscroll: Option<Autoscroll>,
10695 cx: &mut ViewContext<Self>,
10696 ) {
10697 self.display_map.update(cx, |display_map, cx| {
10698 display_map.remove_blocks(block_ids, cx)
10699 });
10700 if let Some(autoscroll) = autoscroll {
10701 self.request_autoscroll(autoscroll, cx);
10702 }
10703 cx.notify();
10704 }
10705
10706 pub fn row_for_block(
10707 &self,
10708 block_id: CustomBlockId,
10709 cx: &mut ViewContext<Self>,
10710 ) -> Option<DisplayRow> {
10711 self.display_map
10712 .update(cx, |map, cx| map.row_for_block(block_id, cx))
10713 }
10714
10715 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
10716 self.focused_block = Some(focused_block);
10717 }
10718
10719 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
10720 self.focused_block.take()
10721 }
10722
10723 pub fn insert_creases(
10724 &mut self,
10725 creases: impl IntoIterator<Item = Crease<Anchor>>,
10726 cx: &mut ViewContext<Self>,
10727 ) -> Vec<CreaseId> {
10728 self.display_map
10729 .update(cx, |map, cx| map.insert_creases(creases, cx))
10730 }
10731
10732 pub fn remove_creases(
10733 &mut self,
10734 ids: impl IntoIterator<Item = CreaseId>,
10735 cx: &mut ViewContext<Self>,
10736 ) {
10737 self.display_map
10738 .update(cx, |map, cx| map.remove_creases(ids, cx));
10739 }
10740
10741 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
10742 self.display_map
10743 .update(cx, |map, cx| map.snapshot(cx))
10744 .longest_row()
10745 }
10746
10747 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
10748 self.display_map
10749 .update(cx, |map, cx| map.snapshot(cx))
10750 .max_point()
10751 }
10752
10753 pub fn text(&self, cx: &AppContext) -> String {
10754 self.buffer.read(cx).read(cx).text()
10755 }
10756
10757 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
10758 let text = self.text(cx);
10759 let text = text.trim();
10760
10761 if text.is_empty() {
10762 return None;
10763 }
10764
10765 Some(text.to_string())
10766 }
10767
10768 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
10769 self.transact(cx, |this, cx| {
10770 this.buffer
10771 .read(cx)
10772 .as_singleton()
10773 .expect("you can only call set_text on editors for singleton buffers")
10774 .update(cx, |buffer, cx| buffer.set_text(text, cx));
10775 });
10776 }
10777
10778 pub fn display_text(&self, cx: &mut AppContext) -> String {
10779 self.display_map
10780 .update(cx, |map, cx| map.snapshot(cx))
10781 .text()
10782 }
10783
10784 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
10785 let mut wrap_guides = smallvec::smallvec![];
10786
10787 if self.show_wrap_guides == Some(false) {
10788 return wrap_guides;
10789 }
10790
10791 let settings = self.buffer.read(cx).settings_at(0, cx);
10792 if settings.show_wrap_guides {
10793 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
10794 wrap_guides.push((soft_wrap as usize, true));
10795 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
10796 wrap_guides.push((soft_wrap as usize, true));
10797 }
10798 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
10799 }
10800
10801 wrap_guides
10802 }
10803
10804 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
10805 let settings = self.buffer.read(cx).settings_at(0, cx);
10806 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
10807 match mode {
10808 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
10809 SoftWrap::None
10810 }
10811 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
10812 language_settings::SoftWrap::PreferredLineLength => {
10813 SoftWrap::Column(settings.preferred_line_length)
10814 }
10815 language_settings::SoftWrap::Bounded => {
10816 SoftWrap::Bounded(settings.preferred_line_length)
10817 }
10818 }
10819 }
10820
10821 pub fn set_soft_wrap_mode(
10822 &mut self,
10823 mode: language_settings::SoftWrap,
10824 cx: &mut ViewContext<Self>,
10825 ) {
10826 self.soft_wrap_mode_override = Some(mode);
10827 cx.notify();
10828 }
10829
10830 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
10831 self.text_style_refinement = Some(style);
10832 }
10833
10834 /// called by the Element so we know what style we were most recently rendered with.
10835 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
10836 let rem_size = cx.rem_size();
10837 self.display_map.update(cx, |map, cx| {
10838 map.set_font(
10839 style.text.font(),
10840 style.text.font_size.to_pixels(rem_size),
10841 cx,
10842 )
10843 });
10844 self.style = Some(style);
10845 }
10846
10847 pub fn style(&self) -> Option<&EditorStyle> {
10848 self.style.as_ref()
10849 }
10850
10851 // Called by the element. This method is not designed to be called outside of the editor
10852 // element's layout code because it does not notify when rewrapping is computed synchronously.
10853 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
10854 self.display_map
10855 .update(cx, |map, cx| map.set_wrap_width(width, cx))
10856 }
10857
10858 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
10859 if self.soft_wrap_mode_override.is_some() {
10860 self.soft_wrap_mode_override.take();
10861 } else {
10862 let soft_wrap = match self.soft_wrap_mode(cx) {
10863 SoftWrap::GitDiff => return,
10864 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
10865 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
10866 language_settings::SoftWrap::None
10867 }
10868 };
10869 self.soft_wrap_mode_override = Some(soft_wrap);
10870 }
10871 cx.notify();
10872 }
10873
10874 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
10875 let Some(workspace) = self.workspace() else {
10876 return;
10877 };
10878 let fs = workspace.read(cx).app_state().fs.clone();
10879 let current_show = TabBarSettings::get_global(cx).show;
10880 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
10881 setting.show = Some(!current_show);
10882 });
10883 }
10884
10885 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
10886 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
10887 self.buffer
10888 .read(cx)
10889 .settings_at(0, cx)
10890 .indent_guides
10891 .enabled
10892 });
10893 self.show_indent_guides = Some(!currently_enabled);
10894 cx.notify();
10895 }
10896
10897 fn should_show_indent_guides(&self) -> Option<bool> {
10898 self.show_indent_guides
10899 }
10900
10901 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
10902 let mut editor_settings = EditorSettings::get_global(cx).clone();
10903 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
10904 EditorSettings::override_global(editor_settings, cx);
10905 }
10906
10907 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
10908 self.use_relative_line_numbers
10909 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
10910 }
10911
10912 pub fn toggle_relative_line_numbers(
10913 &mut self,
10914 _: &ToggleRelativeLineNumbers,
10915 cx: &mut ViewContext<Self>,
10916 ) {
10917 let is_relative = self.should_use_relative_line_numbers(cx);
10918 self.set_relative_line_number(Some(!is_relative), cx)
10919 }
10920
10921 pub fn set_relative_line_number(
10922 &mut self,
10923 is_relative: Option<bool>,
10924 cx: &mut ViewContext<Self>,
10925 ) {
10926 self.use_relative_line_numbers = is_relative;
10927 cx.notify();
10928 }
10929
10930 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
10931 self.show_gutter = show_gutter;
10932 cx.notify();
10933 }
10934
10935 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
10936 self.show_line_numbers = Some(show_line_numbers);
10937 cx.notify();
10938 }
10939
10940 pub fn set_show_git_diff_gutter(
10941 &mut self,
10942 show_git_diff_gutter: bool,
10943 cx: &mut ViewContext<Self>,
10944 ) {
10945 self.show_git_diff_gutter = Some(show_git_diff_gutter);
10946 cx.notify();
10947 }
10948
10949 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
10950 self.show_code_actions = Some(show_code_actions);
10951 cx.notify();
10952 }
10953
10954 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
10955 self.show_runnables = Some(show_runnables);
10956 cx.notify();
10957 }
10958
10959 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
10960 if self.display_map.read(cx).masked != masked {
10961 self.display_map.update(cx, |map, _| map.masked = masked);
10962 }
10963 cx.notify()
10964 }
10965
10966 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
10967 self.show_wrap_guides = Some(show_wrap_guides);
10968 cx.notify();
10969 }
10970
10971 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
10972 self.show_indent_guides = Some(show_indent_guides);
10973 cx.notify();
10974 }
10975
10976 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
10977 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10978 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10979 if let Some(dir) = file.abs_path(cx).parent() {
10980 return Some(dir.to_owned());
10981 }
10982 }
10983
10984 if let Some(project_path) = buffer.read(cx).project_path(cx) {
10985 return Some(project_path.path.to_path_buf());
10986 }
10987 }
10988
10989 None
10990 }
10991
10992 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
10993 self.active_excerpt(cx)?
10994 .1
10995 .read(cx)
10996 .file()
10997 .and_then(|f| f.as_local())
10998 }
10999
11000 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11001 if let Some(target) = self.target_file(cx) {
11002 cx.reveal_path(&target.abs_path(cx));
11003 }
11004 }
11005
11006 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11007 if let Some(file) = self.target_file(cx) {
11008 if let Some(path) = file.abs_path(cx).to_str() {
11009 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11010 }
11011 }
11012 }
11013
11014 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11015 if let Some(file) = self.target_file(cx) {
11016 if let Some(path) = file.path().to_str() {
11017 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11018 }
11019 }
11020 }
11021
11022 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11023 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11024
11025 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11026 self.start_git_blame(true, cx);
11027 }
11028
11029 cx.notify();
11030 }
11031
11032 pub fn toggle_git_blame_inline(
11033 &mut self,
11034 _: &ToggleGitBlameInline,
11035 cx: &mut ViewContext<Self>,
11036 ) {
11037 self.toggle_git_blame_inline_internal(true, cx);
11038 cx.notify();
11039 }
11040
11041 pub fn git_blame_inline_enabled(&self) -> bool {
11042 self.git_blame_inline_enabled
11043 }
11044
11045 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11046 self.show_selection_menu = self
11047 .show_selection_menu
11048 .map(|show_selections_menu| !show_selections_menu)
11049 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11050
11051 cx.notify();
11052 }
11053
11054 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11055 self.show_selection_menu
11056 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11057 }
11058
11059 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11060 if let Some(project) = self.project.as_ref() {
11061 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11062 return;
11063 };
11064
11065 if buffer.read(cx).file().is_none() {
11066 return;
11067 }
11068
11069 let focused = self.focus_handle(cx).contains_focused(cx);
11070
11071 let project = project.clone();
11072 let blame =
11073 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11074 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11075 self.blame = Some(blame);
11076 }
11077 }
11078
11079 fn toggle_git_blame_inline_internal(
11080 &mut self,
11081 user_triggered: bool,
11082 cx: &mut ViewContext<Self>,
11083 ) {
11084 if self.git_blame_inline_enabled {
11085 self.git_blame_inline_enabled = false;
11086 self.show_git_blame_inline = false;
11087 self.show_git_blame_inline_delay_task.take();
11088 } else {
11089 self.git_blame_inline_enabled = true;
11090 self.start_git_blame_inline(user_triggered, cx);
11091 }
11092
11093 cx.notify();
11094 }
11095
11096 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11097 self.start_git_blame(user_triggered, cx);
11098
11099 if ProjectSettings::get_global(cx)
11100 .git
11101 .inline_blame_delay()
11102 .is_some()
11103 {
11104 self.start_inline_blame_timer(cx);
11105 } else {
11106 self.show_git_blame_inline = true
11107 }
11108 }
11109
11110 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11111 self.blame.as_ref()
11112 }
11113
11114 pub fn show_git_blame_gutter(&self) -> bool {
11115 self.show_git_blame_gutter
11116 }
11117
11118 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11119 self.show_git_blame_gutter && self.has_blame_entries(cx)
11120 }
11121
11122 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11123 self.show_git_blame_inline
11124 && self.focus_handle.is_focused(cx)
11125 && !self.newest_selection_head_on_empty_line(cx)
11126 && self.has_blame_entries(cx)
11127 }
11128
11129 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11130 self.blame()
11131 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11132 }
11133
11134 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11135 let cursor_anchor = self.selections.newest_anchor().head();
11136
11137 let snapshot = self.buffer.read(cx).snapshot(cx);
11138 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11139
11140 snapshot.line_len(buffer_row) == 0
11141 }
11142
11143 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11144 let buffer_and_selection = maybe!({
11145 let selection = self.selections.newest::<Point>(cx);
11146 let selection_range = selection.range();
11147
11148 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11149 (buffer, selection_range.start.row..selection_range.end.row)
11150 } else {
11151 let buffer_ranges = self
11152 .buffer()
11153 .read(cx)
11154 .range_to_buffer_ranges(selection_range, cx);
11155
11156 let (buffer, range, _) = if selection.reversed {
11157 buffer_ranges.first()
11158 } else {
11159 buffer_ranges.last()
11160 }?;
11161
11162 let snapshot = buffer.read(cx).snapshot();
11163 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11164 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11165 (buffer.clone(), selection)
11166 };
11167
11168 Some((buffer, selection))
11169 });
11170
11171 let Some((buffer, selection)) = buffer_and_selection else {
11172 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11173 };
11174
11175 let Some(project) = self.project.as_ref() else {
11176 return Task::ready(Err(anyhow!("editor does not have project")));
11177 };
11178
11179 project.update(cx, |project, cx| {
11180 project.get_permalink_to_line(&buffer, selection, cx)
11181 })
11182 }
11183
11184 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11185 let permalink_task = self.get_permalink_to_line(cx);
11186 let workspace = self.workspace();
11187
11188 cx.spawn(|_, mut cx| async move {
11189 match permalink_task.await {
11190 Ok(permalink) => {
11191 cx.update(|cx| {
11192 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11193 })
11194 .ok();
11195 }
11196 Err(err) => {
11197 let message = format!("Failed to copy permalink: {err}");
11198
11199 Err::<(), anyhow::Error>(err).log_err();
11200
11201 if let Some(workspace) = workspace {
11202 workspace
11203 .update(&mut cx, |workspace, cx| {
11204 struct CopyPermalinkToLine;
11205
11206 workspace.show_toast(
11207 Toast::new(
11208 NotificationId::unique::<CopyPermalinkToLine>(),
11209 message,
11210 ),
11211 cx,
11212 )
11213 })
11214 .ok();
11215 }
11216 }
11217 }
11218 })
11219 .detach();
11220 }
11221
11222 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11223 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11224 if let Some(file) = self.target_file(cx) {
11225 if let Some(path) = file.path().to_str() {
11226 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11227 }
11228 }
11229 }
11230
11231 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11232 let permalink_task = self.get_permalink_to_line(cx);
11233 let workspace = self.workspace();
11234
11235 cx.spawn(|_, mut cx| async move {
11236 match permalink_task.await {
11237 Ok(permalink) => {
11238 cx.update(|cx| {
11239 cx.open_url(permalink.as_ref());
11240 })
11241 .ok();
11242 }
11243 Err(err) => {
11244 let message = format!("Failed to open permalink: {err}");
11245
11246 Err::<(), anyhow::Error>(err).log_err();
11247
11248 if let Some(workspace) = workspace {
11249 workspace
11250 .update(&mut cx, |workspace, cx| {
11251 struct OpenPermalinkToLine;
11252
11253 workspace.show_toast(
11254 Toast::new(
11255 NotificationId::unique::<OpenPermalinkToLine>(),
11256 message,
11257 ),
11258 cx,
11259 )
11260 })
11261 .ok();
11262 }
11263 }
11264 }
11265 })
11266 .detach();
11267 }
11268
11269 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11270 self.insert_uuid(UuidVersion::V4, cx);
11271 }
11272
11273 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11274 self.insert_uuid(UuidVersion::V7, cx);
11275 }
11276
11277 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11278 self.transact(cx, |this, cx| {
11279 let edits = this
11280 .selections
11281 .all::<Point>(cx)
11282 .into_iter()
11283 .map(|selection| {
11284 let uuid = match version {
11285 UuidVersion::V4 => uuid::Uuid::new_v4(),
11286 UuidVersion::V7 => uuid::Uuid::now_v7(),
11287 };
11288
11289 (selection.range(), uuid.to_string())
11290 });
11291 this.edit(edits, cx);
11292 this.refresh_inline_completion(true, false, cx);
11293 });
11294 }
11295
11296 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11297 /// last highlight added will be used.
11298 ///
11299 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11300 pub fn highlight_rows<T: 'static>(
11301 &mut self,
11302 range: Range<Anchor>,
11303 color: Hsla,
11304 should_autoscroll: bool,
11305 cx: &mut ViewContext<Self>,
11306 ) {
11307 let snapshot = self.buffer().read(cx).snapshot(cx);
11308 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11309 let ix = row_highlights.binary_search_by(|highlight| {
11310 Ordering::Equal
11311 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11312 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11313 });
11314
11315 if let Err(mut ix) = ix {
11316 let index = post_inc(&mut self.highlight_order);
11317
11318 // If this range intersects with the preceding highlight, then merge it with
11319 // the preceding highlight. Otherwise insert a new highlight.
11320 let mut merged = false;
11321 if ix > 0 {
11322 let prev_highlight = &mut row_highlights[ix - 1];
11323 if prev_highlight
11324 .range
11325 .end
11326 .cmp(&range.start, &snapshot)
11327 .is_ge()
11328 {
11329 ix -= 1;
11330 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11331 prev_highlight.range.end = range.end;
11332 }
11333 merged = true;
11334 prev_highlight.index = index;
11335 prev_highlight.color = color;
11336 prev_highlight.should_autoscroll = should_autoscroll;
11337 }
11338 }
11339
11340 if !merged {
11341 row_highlights.insert(
11342 ix,
11343 RowHighlight {
11344 range: range.clone(),
11345 index,
11346 color,
11347 should_autoscroll,
11348 },
11349 );
11350 }
11351
11352 // If any of the following highlights intersect with this one, merge them.
11353 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11354 let highlight = &row_highlights[ix];
11355 if next_highlight
11356 .range
11357 .start
11358 .cmp(&highlight.range.end, &snapshot)
11359 .is_le()
11360 {
11361 if next_highlight
11362 .range
11363 .end
11364 .cmp(&highlight.range.end, &snapshot)
11365 .is_gt()
11366 {
11367 row_highlights[ix].range.end = next_highlight.range.end;
11368 }
11369 row_highlights.remove(ix + 1);
11370 } else {
11371 break;
11372 }
11373 }
11374 }
11375 }
11376
11377 /// Remove any highlighted row ranges of the given type that intersect the
11378 /// given ranges.
11379 pub fn remove_highlighted_rows<T: 'static>(
11380 &mut self,
11381 ranges_to_remove: Vec<Range<Anchor>>,
11382 cx: &mut ViewContext<Self>,
11383 ) {
11384 let snapshot = self.buffer().read(cx).snapshot(cx);
11385 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11386 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11387 row_highlights.retain(|highlight| {
11388 while let Some(range_to_remove) = ranges_to_remove.peek() {
11389 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11390 Ordering::Less | Ordering::Equal => {
11391 ranges_to_remove.next();
11392 }
11393 Ordering::Greater => {
11394 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11395 Ordering::Less | Ordering::Equal => {
11396 return false;
11397 }
11398 Ordering::Greater => break,
11399 }
11400 }
11401 }
11402 }
11403
11404 true
11405 })
11406 }
11407
11408 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11409 pub fn clear_row_highlights<T: 'static>(&mut self) {
11410 self.highlighted_rows.remove(&TypeId::of::<T>());
11411 }
11412
11413 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11414 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11415 self.highlighted_rows
11416 .get(&TypeId::of::<T>())
11417 .map_or(&[] as &[_], |vec| vec.as_slice())
11418 .iter()
11419 .map(|highlight| (highlight.range.clone(), highlight.color))
11420 }
11421
11422 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11423 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11424 /// Allows to ignore certain kinds of highlights.
11425 pub fn highlighted_display_rows(
11426 &mut self,
11427 cx: &mut WindowContext,
11428 ) -> BTreeMap<DisplayRow, Hsla> {
11429 let snapshot = self.snapshot(cx);
11430 let mut used_highlight_orders = HashMap::default();
11431 self.highlighted_rows
11432 .iter()
11433 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11434 .fold(
11435 BTreeMap::<DisplayRow, Hsla>::new(),
11436 |mut unique_rows, highlight| {
11437 let start = highlight.range.start.to_display_point(&snapshot);
11438 let end = highlight.range.end.to_display_point(&snapshot);
11439 let start_row = start.row().0;
11440 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11441 && end.column() == 0
11442 {
11443 end.row().0.saturating_sub(1)
11444 } else {
11445 end.row().0
11446 };
11447 for row in start_row..=end_row {
11448 let used_index =
11449 used_highlight_orders.entry(row).or_insert(highlight.index);
11450 if highlight.index >= *used_index {
11451 *used_index = highlight.index;
11452 unique_rows.insert(DisplayRow(row), highlight.color);
11453 }
11454 }
11455 unique_rows
11456 },
11457 )
11458 }
11459
11460 pub fn highlighted_display_row_for_autoscroll(
11461 &self,
11462 snapshot: &DisplaySnapshot,
11463 ) -> Option<DisplayRow> {
11464 self.highlighted_rows
11465 .values()
11466 .flat_map(|highlighted_rows| highlighted_rows.iter())
11467 .filter_map(|highlight| {
11468 if highlight.should_autoscroll {
11469 Some(highlight.range.start.to_display_point(snapshot).row())
11470 } else {
11471 None
11472 }
11473 })
11474 .min()
11475 }
11476
11477 pub fn set_search_within_ranges(
11478 &mut self,
11479 ranges: &[Range<Anchor>],
11480 cx: &mut ViewContext<Self>,
11481 ) {
11482 self.highlight_background::<SearchWithinRange>(
11483 ranges,
11484 |colors| colors.editor_document_highlight_read_background,
11485 cx,
11486 )
11487 }
11488
11489 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11490 self.breadcrumb_header = Some(new_header);
11491 }
11492
11493 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11494 self.clear_background_highlights::<SearchWithinRange>(cx);
11495 }
11496
11497 pub fn highlight_background<T: 'static>(
11498 &mut self,
11499 ranges: &[Range<Anchor>],
11500 color_fetcher: fn(&ThemeColors) -> Hsla,
11501 cx: &mut ViewContext<Self>,
11502 ) {
11503 self.background_highlights
11504 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11505 self.scrollbar_marker_state.dirty = true;
11506 cx.notify();
11507 }
11508
11509 pub fn clear_background_highlights<T: 'static>(
11510 &mut self,
11511 cx: &mut ViewContext<Self>,
11512 ) -> Option<BackgroundHighlight> {
11513 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11514 if !text_highlights.1.is_empty() {
11515 self.scrollbar_marker_state.dirty = true;
11516 cx.notify();
11517 }
11518 Some(text_highlights)
11519 }
11520
11521 pub fn highlight_gutter<T: 'static>(
11522 &mut self,
11523 ranges: &[Range<Anchor>],
11524 color_fetcher: fn(&AppContext) -> Hsla,
11525 cx: &mut ViewContext<Self>,
11526 ) {
11527 self.gutter_highlights
11528 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11529 cx.notify();
11530 }
11531
11532 pub fn clear_gutter_highlights<T: 'static>(
11533 &mut self,
11534 cx: &mut ViewContext<Self>,
11535 ) -> Option<GutterHighlight> {
11536 cx.notify();
11537 self.gutter_highlights.remove(&TypeId::of::<T>())
11538 }
11539
11540 #[cfg(feature = "test-support")]
11541 pub fn all_text_background_highlights(
11542 &mut self,
11543 cx: &mut ViewContext<Self>,
11544 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11545 let snapshot = self.snapshot(cx);
11546 let buffer = &snapshot.buffer_snapshot;
11547 let start = buffer.anchor_before(0);
11548 let end = buffer.anchor_after(buffer.len());
11549 let theme = cx.theme().colors();
11550 self.background_highlights_in_range(start..end, &snapshot, theme)
11551 }
11552
11553 #[cfg(feature = "test-support")]
11554 pub fn search_background_highlights(
11555 &mut self,
11556 cx: &mut ViewContext<Self>,
11557 ) -> Vec<Range<Point>> {
11558 let snapshot = self.buffer().read(cx).snapshot(cx);
11559
11560 let highlights = self
11561 .background_highlights
11562 .get(&TypeId::of::<items::BufferSearchHighlights>());
11563
11564 if let Some((_color, ranges)) = highlights {
11565 ranges
11566 .iter()
11567 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11568 .collect_vec()
11569 } else {
11570 vec![]
11571 }
11572 }
11573
11574 fn document_highlights_for_position<'a>(
11575 &'a self,
11576 position: Anchor,
11577 buffer: &'a MultiBufferSnapshot,
11578 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11579 let read_highlights = self
11580 .background_highlights
11581 .get(&TypeId::of::<DocumentHighlightRead>())
11582 .map(|h| &h.1);
11583 let write_highlights = self
11584 .background_highlights
11585 .get(&TypeId::of::<DocumentHighlightWrite>())
11586 .map(|h| &h.1);
11587 let left_position = position.bias_left(buffer);
11588 let right_position = position.bias_right(buffer);
11589 read_highlights
11590 .into_iter()
11591 .chain(write_highlights)
11592 .flat_map(move |ranges| {
11593 let start_ix = match ranges.binary_search_by(|probe| {
11594 let cmp = probe.end.cmp(&left_position, buffer);
11595 if cmp.is_ge() {
11596 Ordering::Greater
11597 } else {
11598 Ordering::Less
11599 }
11600 }) {
11601 Ok(i) | Err(i) => i,
11602 };
11603
11604 ranges[start_ix..]
11605 .iter()
11606 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11607 })
11608 }
11609
11610 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11611 self.background_highlights
11612 .get(&TypeId::of::<T>())
11613 .map_or(false, |(_, highlights)| !highlights.is_empty())
11614 }
11615
11616 pub fn background_highlights_in_range(
11617 &self,
11618 search_range: Range<Anchor>,
11619 display_snapshot: &DisplaySnapshot,
11620 theme: &ThemeColors,
11621 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11622 let mut results = Vec::new();
11623 for (color_fetcher, ranges) in self.background_highlights.values() {
11624 let color = color_fetcher(theme);
11625 let start_ix = match ranges.binary_search_by(|probe| {
11626 let cmp = probe
11627 .end
11628 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11629 if cmp.is_gt() {
11630 Ordering::Greater
11631 } else {
11632 Ordering::Less
11633 }
11634 }) {
11635 Ok(i) | Err(i) => i,
11636 };
11637 for range in &ranges[start_ix..] {
11638 if range
11639 .start
11640 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11641 .is_ge()
11642 {
11643 break;
11644 }
11645
11646 let start = range.start.to_display_point(display_snapshot);
11647 let end = range.end.to_display_point(display_snapshot);
11648 results.push((start..end, color))
11649 }
11650 }
11651 results
11652 }
11653
11654 pub fn background_highlight_row_ranges<T: 'static>(
11655 &self,
11656 search_range: Range<Anchor>,
11657 display_snapshot: &DisplaySnapshot,
11658 count: usize,
11659 ) -> Vec<RangeInclusive<DisplayPoint>> {
11660 let mut results = Vec::new();
11661 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11662 return vec![];
11663 };
11664
11665 let start_ix = match ranges.binary_search_by(|probe| {
11666 let cmp = probe
11667 .end
11668 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11669 if cmp.is_gt() {
11670 Ordering::Greater
11671 } else {
11672 Ordering::Less
11673 }
11674 }) {
11675 Ok(i) | Err(i) => i,
11676 };
11677 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11678 if let (Some(start_display), Some(end_display)) = (start, end) {
11679 results.push(
11680 start_display.to_display_point(display_snapshot)
11681 ..=end_display.to_display_point(display_snapshot),
11682 );
11683 }
11684 };
11685 let mut start_row: Option<Point> = None;
11686 let mut end_row: Option<Point> = None;
11687 if ranges.len() > count {
11688 return Vec::new();
11689 }
11690 for range in &ranges[start_ix..] {
11691 if range
11692 .start
11693 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11694 .is_ge()
11695 {
11696 break;
11697 }
11698 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
11699 if let Some(current_row) = &end_row {
11700 if end.row == current_row.row {
11701 continue;
11702 }
11703 }
11704 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
11705 if start_row.is_none() {
11706 assert_eq!(end_row, None);
11707 start_row = Some(start);
11708 end_row = Some(end);
11709 continue;
11710 }
11711 if let Some(current_end) = end_row.as_mut() {
11712 if start.row > current_end.row + 1 {
11713 push_region(start_row, end_row);
11714 start_row = Some(start);
11715 end_row = Some(end);
11716 } else {
11717 // Merge two hunks.
11718 *current_end = end;
11719 }
11720 } else {
11721 unreachable!();
11722 }
11723 }
11724 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
11725 push_region(start_row, end_row);
11726 results
11727 }
11728
11729 pub fn gutter_highlights_in_range(
11730 &self,
11731 search_range: Range<Anchor>,
11732 display_snapshot: &DisplaySnapshot,
11733 cx: &AppContext,
11734 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11735 let mut results = Vec::new();
11736 for (color_fetcher, ranges) in self.gutter_highlights.values() {
11737 let color = color_fetcher(cx);
11738 let start_ix = match ranges.binary_search_by(|probe| {
11739 let cmp = probe
11740 .end
11741 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11742 if cmp.is_gt() {
11743 Ordering::Greater
11744 } else {
11745 Ordering::Less
11746 }
11747 }) {
11748 Ok(i) | Err(i) => i,
11749 };
11750 for range in &ranges[start_ix..] {
11751 if range
11752 .start
11753 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11754 .is_ge()
11755 {
11756 break;
11757 }
11758
11759 let start = range.start.to_display_point(display_snapshot);
11760 let end = range.end.to_display_point(display_snapshot);
11761 results.push((start..end, color))
11762 }
11763 }
11764 results
11765 }
11766
11767 /// Get the text ranges corresponding to the redaction query
11768 pub fn redacted_ranges(
11769 &self,
11770 search_range: Range<Anchor>,
11771 display_snapshot: &DisplaySnapshot,
11772 cx: &WindowContext,
11773 ) -> Vec<Range<DisplayPoint>> {
11774 display_snapshot
11775 .buffer_snapshot
11776 .redacted_ranges(search_range, |file| {
11777 if let Some(file) = file {
11778 file.is_private()
11779 && EditorSettings::get(
11780 Some(SettingsLocation {
11781 worktree_id: file.worktree_id(cx),
11782 path: file.path().as_ref(),
11783 }),
11784 cx,
11785 )
11786 .redact_private_values
11787 } else {
11788 false
11789 }
11790 })
11791 .map(|range| {
11792 range.start.to_display_point(display_snapshot)
11793 ..range.end.to_display_point(display_snapshot)
11794 })
11795 .collect()
11796 }
11797
11798 pub fn highlight_text<T: 'static>(
11799 &mut self,
11800 ranges: Vec<Range<Anchor>>,
11801 style: HighlightStyle,
11802 cx: &mut ViewContext<Self>,
11803 ) {
11804 self.display_map.update(cx, |map, _| {
11805 map.highlight_text(TypeId::of::<T>(), ranges, style)
11806 });
11807 cx.notify();
11808 }
11809
11810 pub(crate) fn highlight_inlays<T: 'static>(
11811 &mut self,
11812 highlights: Vec<InlayHighlight>,
11813 style: HighlightStyle,
11814 cx: &mut ViewContext<Self>,
11815 ) {
11816 self.display_map.update(cx, |map, _| {
11817 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
11818 });
11819 cx.notify();
11820 }
11821
11822 pub fn text_highlights<'a, T: 'static>(
11823 &'a self,
11824 cx: &'a AppContext,
11825 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
11826 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
11827 }
11828
11829 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
11830 let cleared = self
11831 .display_map
11832 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
11833 if cleared {
11834 cx.notify();
11835 }
11836 }
11837
11838 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
11839 (self.read_only(cx) || self.blink_manager.read(cx).visible())
11840 && self.focus_handle.is_focused(cx)
11841 }
11842
11843 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
11844 self.show_cursor_when_unfocused = is_enabled;
11845 cx.notify();
11846 }
11847
11848 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
11849 cx.notify();
11850 }
11851
11852 fn on_buffer_event(
11853 &mut self,
11854 multibuffer: Model<MultiBuffer>,
11855 event: &multi_buffer::Event,
11856 cx: &mut ViewContext<Self>,
11857 ) {
11858 match event {
11859 multi_buffer::Event::Edited {
11860 singleton_buffer_edited,
11861 } => {
11862 self.scrollbar_marker_state.dirty = true;
11863 self.active_indent_guides_state.dirty = true;
11864 self.refresh_active_diagnostics(cx);
11865 self.refresh_code_actions(cx);
11866 if self.has_active_inline_completion() {
11867 self.update_visible_inline_completion(cx);
11868 }
11869 cx.emit(EditorEvent::BufferEdited);
11870 cx.emit(SearchEvent::MatchesInvalidated);
11871 if *singleton_buffer_edited {
11872 if let Some(project) = &self.project {
11873 let project = project.read(cx);
11874 #[allow(clippy::mutable_key_type)]
11875 let languages_affected = multibuffer
11876 .read(cx)
11877 .all_buffers()
11878 .into_iter()
11879 .filter_map(|buffer| {
11880 let buffer = buffer.read(cx);
11881 let language = buffer.language()?;
11882 if project.is_local()
11883 && project
11884 .language_servers_for_local_buffer(buffer, cx)
11885 .count()
11886 == 0
11887 {
11888 None
11889 } else {
11890 Some(language)
11891 }
11892 })
11893 .cloned()
11894 .collect::<HashSet<_>>();
11895 if !languages_affected.is_empty() {
11896 self.refresh_inlay_hints(
11897 InlayHintRefreshReason::BufferEdited(languages_affected),
11898 cx,
11899 );
11900 }
11901 }
11902 }
11903
11904 let Some(project) = &self.project else { return };
11905 let (telemetry, is_via_ssh) = {
11906 let project = project.read(cx);
11907 let telemetry = project.client().telemetry().clone();
11908 let is_via_ssh = project.is_via_ssh();
11909 (telemetry, is_via_ssh)
11910 };
11911 refresh_linked_ranges(self, cx);
11912 telemetry.log_edit_event("editor", is_via_ssh);
11913 }
11914 multi_buffer::Event::ExcerptsAdded {
11915 buffer,
11916 predecessor,
11917 excerpts,
11918 } => {
11919 self.tasks_update_task = Some(self.refresh_runnables(cx));
11920 let buffer_id = buffer.read(cx).remote_id();
11921 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
11922 if let Some(project) = &self.project {
11923 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
11924 }
11925 }
11926 cx.emit(EditorEvent::ExcerptsAdded {
11927 buffer: buffer.clone(),
11928 predecessor: *predecessor,
11929 excerpts: excerpts.clone(),
11930 });
11931 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
11932 }
11933 multi_buffer::Event::ExcerptsRemoved { ids } => {
11934 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
11935 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
11936 }
11937 multi_buffer::Event::ExcerptsEdited { ids } => {
11938 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
11939 }
11940 multi_buffer::Event::ExcerptsExpanded { ids } => {
11941 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
11942 }
11943 multi_buffer::Event::Reparsed(buffer_id) => {
11944 self.tasks_update_task = Some(self.refresh_runnables(cx));
11945
11946 cx.emit(EditorEvent::Reparsed(*buffer_id));
11947 }
11948 multi_buffer::Event::LanguageChanged(buffer_id) => {
11949 linked_editing_ranges::refresh_linked_ranges(self, cx);
11950 cx.emit(EditorEvent::Reparsed(*buffer_id));
11951 cx.notify();
11952 }
11953 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
11954 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
11955 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
11956 cx.emit(EditorEvent::TitleChanged)
11957 }
11958 // multi_buffer::Event::DiffBaseChanged => {
11959 // self.scrollbar_marker_state.dirty = true;
11960 // cx.emit(EditorEvent::DiffBaseChanged);
11961 // cx.notify();
11962 // }
11963 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
11964 multi_buffer::Event::DiagnosticsUpdated => {
11965 self.refresh_active_diagnostics(cx);
11966 self.scrollbar_marker_state.dirty = true;
11967 cx.notify();
11968 }
11969 _ => {}
11970 };
11971 }
11972
11973 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
11974 cx.notify();
11975 }
11976
11977 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
11978 self.tasks_update_task = Some(self.refresh_runnables(cx));
11979 self.refresh_inline_completion(true, false, cx);
11980 self.refresh_inlay_hints(
11981 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
11982 self.selections.newest_anchor().head(),
11983 &self.buffer.read(cx).snapshot(cx),
11984 cx,
11985 )),
11986 cx,
11987 );
11988
11989 let old_cursor_shape = self.cursor_shape;
11990
11991 {
11992 let editor_settings = EditorSettings::get_global(cx);
11993 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
11994 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
11995 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
11996 }
11997
11998 if old_cursor_shape != self.cursor_shape {
11999 cx.emit(EditorEvent::CursorShapeChanged);
12000 }
12001
12002 let project_settings = ProjectSettings::get_global(cx);
12003 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12004
12005 if self.mode == EditorMode::Full {
12006 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12007 if self.git_blame_inline_enabled != inline_blame_enabled {
12008 self.toggle_git_blame_inline_internal(false, cx);
12009 }
12010 }
12011
12012 cx.notify();
12013 }
12014
12015 pub fn set_searchable(&mut self, searchable: bool) {
12016 self.searchable = searchable;
12017 }
12018
12019 pub fn searchable(&self) -> bool {
12020 self.searchable
12021 }
12022
12023 fn open_proposed_changes_editor(
12024 &mut self,
12025 _: &OpenProposedChangesEditor,
12026 cx: &mut ViewContext<Self>,
12027 ) {
12028 let Some(workspace) = self.workspace() else {
12029 cx.propagate();
12030 return;
12031 };
12032
12033 let selections = self.selections.all::<usize>(cx);
12034 let buffer = self.buffer.read(cx);
12035 let mut new_selections_by_buffer = HashMap::default();
12036 for selection in selections {
12037 for (buffer, range, _) in
12038 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12039 {
12040 let mut range = range.to_point(buffer.read(cx));
12041 range.start.column = 0;
12042 range.end.column = buffer.read(cx).line_len(range.end.row);
12043 new_selections_by_buffer
12044 .entry(buffer)
12045 .or_insert(Vec::new())
12046 .push(range)
12047 }
12048 }
12049
12050 let proposed_changes_buffers = new_selections_by_buffer
12051 .into_iter()
12052 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12053 .collect::<Vec<_>>();
12054 let proposed_changes_editor = cx.new_view(|cx| {
12055 ProposedChangesEditor::new(
12056 "Proposed changes",
12057 proposed_changes_buffers,
12058 self.project.clone(),
12059 cx,
12060 )
12061 });
12062
12063 cx.window_context().defer(move |cx| {
12064 workspace.update(cx, |workspace, cx| {
12065 workspace.active_pane().update(cx, |pane, cx| {
12066 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12067 });
12068 });
12069 });
12070 }
12071
12072 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12073 self.open_excerpts_common(None, true, cx)
12074 }
12075
12076 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12077 self.open_excerpts_common(None, false, cx)
12078 }
12079
12080 fn open_excerpts_common(
12081 &mut self,
12082 jump_data: Option<JumpData>,
12083 split: bool,
12084 cx: &mut ViewContext<Self>,
12085 ) {
12086 let Some(workspace) = self.workspace() else {
12087 cx.propagate();
12088 return;
12089 };
12090
12091 if self.buffer.read(cx).is_singleton() {
12092 cx.propagate();
12093 return;
12094 }
12095
12096 let mut new_selections_by_buffer = HashMap::default();
12097 match &jump_data {
12098 Some(jump_data) => {
12099 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12100 if let Some(buffer) = multi_buffer_snapshot
12101 .buffer_id_for_excerpt(jump_data.excerpt_id)
12102 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12103 {
12104 let buffer_snapshot = buffer.read(cx).snapshot();
12105 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12106 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12107 } else {
12108 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12109 };
12110 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12111 new_selections_by_buffer.insert(
12112 buffer,
12113 (
12114 vec![jump_to_offset..jump_to_offset],
12115 Some(jump_data.line_offset_from_top),
12116 ),
12117 );
12118 }
12119 }
12120 None => {
12121 let selections = self.selections.all::<usize>(cx);
12122 let buffer = self.buffer.read(cx);
12123 for selection in selections {
12124 for (mut buffer_handle, mut range, _) in
12125 buffer.range_to_buffer_ranges(selection.range(), cx)
12126 {
12127 // When editing branch buffers, jump to the corresponding location
12128 // in their base buffer.
12129 let buffer = buffer_handle.read(cx);
12130 if let Some(base_buffer) = buffer.base_buffer() {
12131 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12132 buffer_handle = base_buffer;
12133 }
12134
12135 if selection.reversed {
12136 mem::swap(&mut range.start, &mut range.end);
12137 }
12138 new_selections_by_buffer
12139 .entry(buffer_handle)
12140 .or_insert((Vec::new(), None))
12141 .0
12142 .push(range)
12143 }
12144 }
12145 }
12146 }
12147
12148 if new_selections_by_buffer.is_empty() {
12149 return;
12150 }
12151
12152 // We defer the pane interaction because we ourselves are a workspace item
12153 // and activating a new item causes the pane to call a method on us reentrantly,
12154 // which panics if we're on the stack.
12155 cx.window_context().defer(move |cx| {
12156 workspace.update(cx, |workspace, cx| {
12157 let pane = if split {
12158 workspace.adjacent_pane(cx)
12159 } else {
12160 workspace.active_pane().clone()
12161 };
12162
12163 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12164 let editor = buffer
12165 .read(cx)
12166 .file()
12167 .is_none()
12168 .then(|| {
12169 // Handle file-less buffers separately: those are not really the project items, so won't have a paroject path or entity id,
12170 // so `workspace.open_project_item` will never find them, always opening a new editor.
12171 // Instead, we try to activate the existing editor in the pane first.
12172 let (editor, pane_item_index) =
12173 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12174 let editor = item.downcast::<Editor>()?;
12175 let singleton_buffer =
12176 editor.read(cx).buffer().read(cx).as_singleton()?;
12177 if singleton_buffer == buffer {
12178 Some((editor, i))
12179 } else {
12180 None
12181 }
12182 })?;
12183 pane.update(cx, |pane, cx| {
12184 pane.activate_item(pane_item_index, true, true, cx)
12185 });
12186 Some(editor)
12187 })
12188 .flatten()
12189 .unwrap_or_else(|| {
12190 workspace.open_project_item::<Self>(
12191 pane.clone(),
12192 buffer,
12193 true,
12194 true,
12195 cx,
12196 )
12197 });
12198
12199 editor.update(cx, |editor, cx| {
12200 let autoscroll = match scroll_offset {
12201 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12202 None => Autoscroll::newest(),
12203 };
12204 let nav_history = editor.nav_history.take();
12205 editor.change_selections(Some(autoscroll), cx, |s| {
12206 s.select_ranges(ranges);
12207 });
12208 editor.nav_history = nav_history;
12209 });
12210 }
12211 })
12212 });
12213 }
12214
12215 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12216 let snapshot = self.buffer.read(cx).read(cx);
12217 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12218 Some(
12219 ranges
12220 .iter()
12221 .map(move |range| {
12222 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12223 })
12224 .collect(),
12225 )
12226 }
12227
12228 fn selection_replacement_ranges(
12229 &self,
12230 range: Range<OffsetUtf16>,
12231 cx: &mut AppContext,
12232 ) -> Vec<Range<OffsetUtf16>> {
12233 let selections = self.selections.all::<OffsetUtf16>(cx);
12234 let newest_selection = selections
12235 .iter()
12236 .max_by_key(|selection| selection.id)
12237 .unwrap();
12238 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12239 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12240 let snapshot = self.buffer.read(cx).read(cx);
12241 selections
12242 .into_iter()
12243 .map(|mut selection| {
12244 selection.start.0 =
12245 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12246 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12247 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12248 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12249 })
12250 .collect()
12251 }
12252
12253 fn report_editor_event(
12254 &self,
12255 operation: &'static str,
12256 file_extension: Option<String>,
12257 cx: &AppContext,
12258 ) {
12259 if cfg!(any(test, feature = "test-support")) {
12260 return;
12261 }
12262
12263 let Some(project) = &self.project else { return };
12264
12265 // If None, we are in a file without an extension
12266 let file = self
12267 .buffer
12268 .read(cx)
12269 .as_singleton()
12270 .and_then(|b| b.read(cx).file());
12271 let file_extension = file_extension.or(file
12272 .as_ref()
12273 .and_then(|file| Path::new(file.file_name(cx)).extension())
12274 .and_then(|e| e.to_str())
12275 .map(|a| a.to_string()));
12276
12277 let vim_mode = cx
12278 .global::<SettingsStore>()
12279 .raw_user_settings()
12280 .get("vim_mode")
12281 == Some(&serde_json::Value::Bool(true));
12282
12283 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12284 == language::language_settings::InlineCompletionProvider::Copilot;
12285 let copilot_enabled_for_language = self
12286 .buffer
12287 .read(cx)
12288 .settings_at(0, cx)
12289 .show_inline_completions;
12290
12291 let project = project.read(cx);
12292 let telemetry = project.client().telemetry().clone();
12293 telemetry.report_editor_event(
12294 file_extension,
12295 vim_mode,
12296 operation,
12297 copilot_enabled,
12298 copilot_enabled_for_language,
12299 project.is_via_ssh(),
12300 )
12301 }
12302
12303 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12304 /// with each line being an array of {text, highlight} objects.
12305 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12306 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12307 return;
12308 };
12309
12310 #[derive(Serialize)]
12311 struct Chunk<'a> {
12312 text: String,
12313 highlight: Option<&'a str>,
12314 }
12315
12316 let snapshot = buffer.read(cx).snapshot();
12317 let range = self
12318 .selected_text_range(false, cx)
12319 .and_then(|selection| {
12320 if selection.range.is_empty() {
12321 None
12322 } else {
12323 Some(selection.range)
12324 }
12325 })
12326 .unwrap_or_else(|| 0..snapshot.len());
12327
12328 let chunks = snapshot.chunks(range, true);
12329 let mut lines = Vec::new();
12330 let mut line: VecDeque<Chunk> = VecDeque::new();
12331
12332 let Some(style) = self.style.as_ref() else {
12333 return;
12334 };
12335
12336 for chunk in chunks {
12337 let highlight = chunk
12338 .syntax_highlight_id
12339 .and_then(|id| id.name(&style.syntax));
12340 let mut chunk_lines = chunk.text.split('\n').peekable();
12341 while let Some(text) = chunk_lines.next() {
12342 let mut merged_with_last_token = false;
12343 if let Some(last_token) = line.back_mut() {
12344 if last_token.highlight == highlight {
12345 last_token.text.push_str(text);
12346 merged_with_last_token = true;
12347 }
12348 }
12349
12350 if !merged_with_last_token {
12351 line.push_back(Chunk {
12352 text: text.into(),
12353 highlight,
12354 });
12355 }
12356
12357 if chunk_lines.peek().is_some() {
12358 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12359 line.pop_front();
12360 }
12361 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12362 line.pop_back();
12363 }
12364
12365 lines.push(mem::take(&mut line));
12366 }
12367 }
12368 }
12369
12370 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12371 return;
12372 };
12373 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12374 }
12375
12376 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12377 self.request_autoscroll(Autoscroll::newest(), cx);
12378 let position = self.selections.newest_display(cx).start;
12379 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12380 }
12381
12382 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12383 &self.inlay_hint_cache
12384 }
12385
12386 pub fn replay_insert_event(
12387 &mut self,
12388 text: &str,
12389 relative_utf16_range: Option<Range<isize>>,
12390 cx: &mut ViewContext<Self>,
12391 ) {
12392 if !self.input_enabled {
12393 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12394 return;
12395 }
12396 if let Some(relative_utf16_range) = relative_utf16_range {
12397 let selections = self.selections.all::<OffsetUtf16>(cx);
12398 self.change_selections(None, cx, |s| {
12399 let new_ranges = selections.into_iter().map(|range| {
12400 let start = OffsetUtf16(
12401 range
12402 .head()
12403 .0
12404 .saturating_add_signed(relative_utf16_range.start),
12405 );
12406 let end = OffsetUtf16(
12407 range
12408 .head()
12409 .0
12410 .saturating_add_signed(relative_utf16_range.end),
12411 );
12412 start..end
12413 });
12414 s.select_ranges(new_ranges);
12415 });
12416 }
12417
12418 self.handle_input(text, cx);
12419 }
12420
12421 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12422 let Some(provider) = self.semantics_provider.as_ref() else {
12423 return false;
12424 };
12425
12426 let mut supports = false;
12427 self.buffer().read(cx).for_each_buffer(|buffer| {
12428 supports |= provider.supports_inlay_hints(buffer, cx);
12429 });
12430 supports
12431 }
12432
12433 pub fn focus(&self, cx: &mut WindowContext) {
12434 cx.focus(&self.focus_handle)
12435 }
12436
12437 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12438 self.focus_handle.is_focused(cx)
12439 }
12440
12441 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12442 cx.emit(EditorEvent::Focused);
12443
12444 if let Some(descendant) = self
12445 .last_focused_descendant
12446 .take()
12447 .and_then(|descendant| descendant.upgrade())
12448 {
12449 cx.focus(&descendant);
12450 } else {
12451 if let Some(blame) = self.blame.as_ref() {
12452 blame.update(cx, GitBlame::focus)
12453 }
12454
12455 self.blink_manager.update(cx, BlinkManager::enable);
12456 self.show_cursor_names(cx);
12457 self.buffer.update(cx, |buffer, cx| {
12458 buffer.finalize_last_transaction(cx);
12459 if self.leader_peer_id.is_none() {
12460 buffer.set_active_selections(
12461 &self.selections.disjoint_anchors(),
12462 self.selections.line_mode,
12463 self.cursor_shape,
12464 cx,
12465 );
12466 }
12467 });
12468 }
12469 }
12470
12471 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12472 cx.emit(EditorEvent::FocusedIn)
12473 }
12474
12475 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12476 if event.blurred != self.focus_handle {
12477 self.last_focused_descendant = Some(event.blurred);
12478 }
12479 }
12480
12481 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12482 self.blink_manager.update(cx, BlinkManager::disable);
12483 self.buffer
12484 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12485
12486 if let Some(blame) = self.blame.as_ref() {
12487 blame.update(cx, GitBlame::blur)
12488 }
12489 if !self.hover_state.focused(cx) {
12490 hide_hover(self, cx);
12491 }
12492
12493 self.hide_context_menu(cx);
12494 cx.emit(EditorEvent::Blurred);
12495 cx.notify();
12496 }
12497
12498 pub fn register_action<A: Action>(
12499 &mut self,
12500 listener: impl Fn(&A, &mut WindowContext) + 'static,
12501 ) -> Subscription {
12502 let id = self.next_editor_action_id.post_inc();
12503 let listener = Arc::new(listener);
12504 self.editor_actions.borrow_mut().insert(
12505 id,
12506 Box::new(move |cx| {
12507 let cx = cx.window_context();
12508 let listener = listener.clone();
12509 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12510 let action = action.downcast_ref().unwrap();
12511 if phase == DispatchPhase::Bubble {
12512 listener(action, cx)
12513 }
12514 })
12515 }),
12516 );
12517
12518 let editor_actions = self.editor_actions.clone();
12519 Subscription::new(move || {
12520 editor_actions.borrow_mut().remove(&id);
12521 })
12522 }
12523
12524 pub fn file_header_size(&self) -> u32 {
12525 FILE_HEADER_HEIGHT
12526 }
12527
12528 pub fn revert(
12529 &mut self,
12530 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12531 cx: &mut ViewContext<Self>,
12532 ) {
12533 self.buffer().update(cx, |multi_buffer, cx| {
12534 for (buffer_id, changes) in revert_changes {
12535 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12536 buffer.update(cx, |buffer, cx| {
12537 buffer.edit(
12538 changes.into_iter().map(|(range, text)| {
12539 (range, text.to_string().map(Arc::<str>::from))
12540 }),
12541 None,
12542 cx,
12543 );
12544 });
12545 }
12546 }
12547 });
12548 self.change_selections(None, cx, |selections| selections.refresh());
12549 }
12550
12551 pub fn to_pixel_point(
12552 &mut self,
12553 source: multi_buffer::Anchor,
12554 editor_snapshot: &EditorSnapshot,
12555 cx: &mut ViewContext<Self>,
12556 ) -> Option<gpui::Point<Pixels>> {
12557 let source_point = source.to_display_point(editor_snapshot);
12558 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12559 }
12560
12561 pub fn display_to_pixel_point(
12562 &self,
12563 source: DisplayPoint,
12564 editor_snapshot: &EditorSnapshot,
12565 cx: &WindowContext,
12566 ) -> Option<gpui::Point<Pixels>> {
12567 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12568 let text_layout_details = self.text_layout_details(cx);
12569 let scroll_top = text_layout_details
12570 .scroll_anchor
12571 .scroll_position(editor_snapshot)
12572 .y;
12573
12574 if source.row().as_f32() < scroll_top.floor() {
12575 return None;
12576 }
12577 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12578 let source_y = line_height * (source.row().as_f32() - scroll_top);
12579 Some(gpui::Point::new(source_x, source_y))
12580 }
12581
12582 pub fn has_active_completions_menu(&self) -> bool {
12583 self.context_menu.read().as_ref().map_or(false, |menu| {
12584 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
12585 })
12586 }
12587
12588 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12589 self.addons
12590 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12591 }
12592
12593 pub fn unregister_addon<T: Addon>(&mut self) {
12594 self.addons.remove(&std::any::TypeId::of::<T>());
12595 }
12596
12597 pub fn addon<T: Addon>(&self) -> Option<&T> {
12598 let type_id = std::any::TypeId::of::<T>();
12599 self.addons
12600 .get(&type_id)
12601 .and_then(|item| item.to_any().downcast_ref::<T>())
12602 }
12603
12604 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
12605 let text_layout_details = self.text_layout_details(cx);
12606 let style = &text_layout_details.editor_style;
12607 let font_id = cx.text_system().resolve_font(&style.text.font());
12608 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12609 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12610
12611 let em_width = cx
12612 .text_system()
12613 .typographic_bounds(font_id, font_size, 'm')
12614 .unwrap()
12615 .size
12616 .width;
12617
12618 gpui::Point::new(em_width, line_height)
12619 }
12620}
12621
12622fn get_unstaged_changes_for_buffers(
12623 project: &Model<Project>,
12624 buffers: impl IntoIterator<Item = Model<Buffer>>,
12625 cx: &mut ViewContext<Editor>,
12626) {
12627 let mut tasks = Vec::new();
12628 project.update(cx, |project, cx| {
12629 for buffer in buffers {
12630 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
12631 }
12632 });
12633 cx.spawn(|this, mut cx| async move {
12634 let change_sets = futures::future::join_all(tasks).await;
12635 this.update(&mut cx, |this, cx| {
12636 for change_set in change_sets {
12637 if let Some(change_set) = change_set.log_err() {
12638 this.diff_map.add_change_set(change_set, cx);
12639 }
12640 }
12641 })
12642 .ok();
12643 })
12644 .detach();
12645}
12646
12647fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
12648 let tab_size = tab_size.get() as usize;
12649 let mut width = offset;
12650
12651 for ch in text.chars() {
12652 width += if ch == '\t' {
12653 tab_size - (width % tab_size)
12654 } else {
12655 1
12656 };
12657 }
12658
12659 width - offset
12660}
12661
12662#[cfg(test)]
12663mod tests {
12664 use super::*;
12665
12666 #[test]
12667 fn test_string_size_with_expanded_tabs() {
12668 let nz = |val| NonZeroU32::new(val).unwrap();
12669 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
12670 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
12671 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
12672 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
12673 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
12674 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
12675 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
12676 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
12677 }
12678}
12679
12680/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
12681struct WordBreakingTokenizer<'a> {
12682 input: &'a str,
12683}
12684
12685impl<'a> WordBreakingTokenizer<'a> {
12686 fn new(input: &'a str) -> Self {
12687 Self { input }
12688 }
12689}
12690
12691fn is_char_ideographic(ch: char) -> bool {
12692 use unicode_script::Script::*;
12693 use unicode_script::UnicodeScript;
12694 matches!(ch.script(), Han | Tangut | Yi)
12695}
12696
12697fn is_grapheme_ideographic(text: &str) -> bool {
12698 text.chars().any(is_char_ideographic)
12699}
12700
12701fn is_grapheme_whitespace(text: &str) -> bool {
12702 text.chars().any(|x| x.is_whitespace())
12703}
12704
12705fn should_stay_with_preceding_ideograph(text: &str) -> bool {
12706 text.chars().next().map_or(false, |ch| {
12707 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
12708 })
12709}
12710
12711#[derive(PartialEq, Eq, Debug, Clone, Copy)]
12712struct WordBreakToken<'a> {
12713 token: &'a str,
12714 grapheme_len: usize,
12715 is_whitespace: bool,
12716}
12717
12718impl<'a> Iterator for WordBreakingTokenizer<'a> {
12719 /// Yields a span, the count of graphemes in the token, and whether it was
12720 /// whitespace. Note that it also breaks at word boundaries.
12721 type Item = WordBreakToken<'a>;
12722
12723 fn next(&mut self) -> Option<Self::Item> {
12724 use unicode_segmentation::UnicodeSegmentation;
12725 if self.input.is_empty() {
12726 return None;
12727 }
12728
12729 let mut iter = self.input.graphemes(true).peekable();
12730 let mut offset = 0;
12731 let mut graphemes = 0;
12732 if let Some(first_grapheme) = iter.next() {
12733 let is_whitespace = is_grapheme_whitespace(first_grapheme);
12734 offset += first_grapheme.len();
12735 graphemes += 1;
12736 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
12737 if let Some(grapheme) = iter.peek().copied() {
12738 if should_stay_with_preceding_ideograph(grapheme) {
12739 offset += grapheme.len();
12740 graphemes += 1;
12741 }
12742 }
12743 } else {
12744 let mut words = self.input[offset..].split_word_bound_indices().peekable();
12745 let mut next_word_bound = words.peek().copied();
12746 if next_word_bound.map_or(false, |(i, _)| i == 0) {
12747 next_word_bound = words.next();
12748 }
12749 while let Some(grapheme) = iter.peek().copied() {
12750 if next_word_bound.map_or(false, |(i, _)| i == offset) {
12751 break;
12752 };
12753 if is_grapheme_whitespace(grapheme) != is_whitespace {
12754 break;
12755 };
12756 offset += grapheme.len();
12757 graphemes += 1;
12758 iter.next();
12759 }
12760 }
12761 let token = &self.input[..offset];
12762 self.input = &self.input[offset..];
12763 if is_whitespace {
12764 Some(WordBreakToken {
12765 token: " ",
12766 grapheme_len: 1,
12767 is_whitespace: true,
12768 })
12769 } else {
12770 Some(WordBreakToken {
12771 token,
12772 grapheme_len: graphemes,
12773 is_whitespace: false,
12774 })
12775 }
12776 } else {
12777 None
12778 }
12779 }
12780}
12781
12782#[test]
12783fn test_word_breaking_tokenizer() {
12784 let tests: &[(&str, &[(&str, usize, bool)])] = &[
12785 ("", &[]),
12786 (" ", &[(" ", 1, true)]),
12787 ("Ʒ", &[("Ʒ", 1, false)]),
12788 ("Ǽ", &[("Ǽ", 1, false)]),
12789 ("⋑", &[("⋑", 1, false)]),
12790 ("⋑⋑", &[("⋑⋑", 2, false)]),
12791 (
12792 "原理，进而",
12793 &[
12794 ("原", 1, false),
12795 ("理，", 2, false),
12796 ("进", 1, false),
12797 ("而", 1, false),
12798 ],
12799 ),
12800 (
12801 "hello world",
12802 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
12803 ),
12804 (
12805 "hello, world",
12806 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
12807 ),
12808 (
12809 " hello world",
12810 &[
12811 (" ", 1, true),
12812 ("hello", 5, false),
12813 (" ", 1, true),
12814 ("world", 5, false),
12815 ],
12816 ),
12817 (
12818 "这是什么 \n 钢笔",
12819 &[
12820 ("这", 1, false),
12821 ("是", 1, false),
12822 ("什", 1, false),
12823 ("么", 1, false),
12824 (" ", 1, true),
12825 ("钢", 1, false),
12826 ("笔", 1, false),
12827 ],
12828 ),
12829 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
12830 ];
12831
12832 for (input, result) in tests {
12833 assert_eq!(
12834 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
12835 result
12836 .iter()
12837 .copied()
12838 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
12839 token,
12840 grapheme_len,
12841 is_whitespace,
12842 })
12843 .collect::<Vec<_>>()
12844 );
12845 }
12846}
12847
12848fn wrap_with_prefix(
12849 line_prefix: String,
12850 unwrapped_text: String,
12851 wrap_column: usize,
12852 tab_size: NonZeroU32,
12853) -> String {
12854 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
12855 let mut wrapped_text = String::new();
12856 let mut current_line = line_prefix.clone();
12857
12858 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
12859 let mut current_line_len = line_prefix_len;
12860 for WordBreakToken {
12861 token,
12862 grapheme_len,
12863 is_whitespace,
12864 } in tokenizer
12865 {
12866 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
12867 wrapped_text.push_str(current_line.trim_end());
12868 wrapped_text.push('\n');
12869 current_line.truncate(line_prefix.len());
12870 current_line_len = line_prefix_len;
12871 if !is_whitespace {
12872 current_line.push_str(token);
12873 current_line_len += grapheme_len;
12874 }
12875 } else if !is_whitespace {
12876 current_line.push_str(token);
12877 current_line_len += grapheme_len;
12878 } else if current_line_len != line_prefix_len {
12879 current_line.push(' ');
12880 current_line_len += 1;
12881 }
12882 }
12883
12884 if !current_line.is_empty() {
12885 wrapped_text.push_str(¤t_line);
12886 }
12887 wrapped_text
12888}
12889
12890#[test]
12891fn test_wrap_with_prefix() {
12892 assert_eq!(
12893 wrap_with_prefix(
12894 "# ".to_string(),
12895 "abcdefg".to_string(),
12896 4,
12897 NonZeroU32::new(4).unwrap()
12898 ),
12899 "# abcdefg"
12900 );
12901 assert_eq!(
12902 wrap_with_prefix(
12903 "".to_string(),
12904 "\thello world".to_string(),
12905 8,
12906 NonZeroU32::new(4).unwrap()
12907 ),
12908 "hello\nworld"
12909 );
12910 assert_eq!(
12911 wrap_with_prefix(
12912 "// ".to_string(),
12913 "xx \nyy zz aa bb cc".to_string(),
12914 12,
12915 NonZeroU32::new(4).unwrap()
12916 ),
12917 "// xx yy zz\n// aa bb cc"
12918 );
12919 assert_eq!(
12920 wrap_with_prefix(
12921 String::new(),
12922 "这是什么 \n 钢笔".to_string(),
12923 3,
12924 NonZeroU32::new(4).unwrap()
12925 ),
12926 "这是什\n么 钢\n笔"
12927 );
12928}
12929
12930fn hunks_for_selections(
12931 snapshot: &EditorSnapshot,
12932 selections: &[Selection<Point>],
12933) -> Vec<MultiBufferDiffHunk> {
12934 hunks_for_ranges(
12935 selections.iter().map(|selection| selection.range()),
12936 snapshot,
12937 )
12938}
12939
12940pub fn hunks_for_ranges(
12941 ranges: impl Iterator<Item = Range<Point>>,
12942 snapshot: &EditorSnapshot,
12943) -> Vec<MultiBufferDiffHunk> {
12944 let mut hunks = Vec::new();
12945 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
12946 HashMap::default();
12947 for query_range in ranges {
12948 let query_rows =
12949 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
12950 for hunk in snapshot.diff_map.diff_hunks_in_range(
12951 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
12952 &snapshot.buffer_snapshot,
12953 ) {
12954 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
12955 // when the caret is just above or just below the deleted hunk.
12956 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
12957 let related_to_selection = if allow_adjacent {
12958 hunk.row_range.overlaps(&query_rows)
12959 || hunk.row_range.start == query_rows.end
12960 || hunk.row_range.end == query_rows.start
12961 } else {
12962 hunk.row_range.overlaps(&query_rows)
12963 };
12964 if related_to_selection {
12965 if !processed_buffer_rows
12966 .entry(hunk.buffer_id)
12967 .or_default()
12968 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
12969 {
12970 continue;
12971 }
12972 hunks.push(hunk);
12973 }
12974 }
12975 }
12976
12977 hunks
12978}
12979
12980pub trait CollaborationHub {
12981 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
12982 fn user_participant_indices<'a>(
12983 &self,
12984 cx: &'a AppContext,
12985 ) -> &'a HashMap<u64, ParticipantIndex>;
12986 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
12987}
12988
12989impl CollaborationHub for Model<Project> {
12990 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
12991 self.read(cx).collaborators()
12992 }
12993
12994 fn user_participant_indices<'a>(
12995 &self,
12996 cx: &'a AppContext,
12997 ) -> &'a HashMap<u64, ParticipantIndex> {
12998 self.read(cx).user_store().read(cx).participant_indices()
12999 }
13000
13001 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13002 let this = self.read(cx);
13003 let user_ids = this.collaborators().values().map(|c| c.user_id);
13004 this.user_store().read_with(cx, |user_store, cx| {
13005 user_store.participant_names(user_ids, cx)
13006 })
13007 }
13008}
13009
13010pub trait SemanticsProvider {
13011 fn hover(
13012 &self,
13013 buffer: &Model<Buffer>,
13014 position: text::Anchor,
13015 cx: &mut AppContext,
13016 ) -> Option<Task<Vec<project::Hover>>>;
13017
13018 fn inlay_hints(
13019 &self,
13020 buffer_handle: Model<Buffer>,
13021 range: Range<text::Anchor>,
13022 cx: &mut AppContext,
13023 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13024
13025 fn resolve_inlay_hint(
13026 &self,
13027 hint: InlayHint,
13028 buffer_handle: Model<Buffer>,
13029 server_id: LanguageServerId,
13030 cx: &mut AppContext,
13031 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13032
13033 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13034
13035 fn document_highlights(
13036 &self,
13037 buffer: &Model<Buffer>,
13038 position: text::Anchor,
13039 cx: &mut AppContext,
13040 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13041
13042 fn definitions(
13043 &self,
13044 buffer: &Model<Buffer>,
13045 position: text::Anchor,
13046 kind: GotoDefinitionKind,
13047 cx: &mut AppContext,
13048 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13049
13050 fn range_for_rename(
13051 &self,
13052 buffer: &Model<Buffer>,
13053 position: text::Anchor,
13054 cx: &mut AppContext,
13055 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13056
13057 fn perform_rename(
13058 &self,
13059 buffer: &Model<Buffer>,
13060 position: text::Anchor,
13061 new_name: String,
13062 cx: &mut AppContext,
13063 ) -> Option<Task<Result<ProjectTransaction>>>;
13064}
13065
13066pub trait CompletionProvider {
13067 fn completions(
13068 &self,
13069 buffer: &Model<Buffer>,
13070 buffer_position: text::Anchor,
13071 trigger: CompletionContext,
13072 cx: &mut ViewContext<Editor>,
13073 ) -> Task<Result<Vec<Completion>>>;
13074
13075 fn resolve_completions(
13076 &self,
13077 buffer: Model<Buffer>,
13078 completion_indices: Vec<usize>,
13079 completions: Arc<RwLock<Box<[Completion]>>>,
13080 cx: &mut ViewContext<Editor>,
13081 ) -> Task<Result<bool>>;
13082
13083 fn apply_additional_edits_for_completion(
13084 &self,
13085 buffer: Model<Buffer>,
13086 completion: Completion,
13087 push_to_history: bool,
13088 cx: &mut ViewContext<Editor>,
13089 ) -> Task<Result<Option<language::Transaction>>>;
13090
13091 fn is_completion_trigger(
13092 &self,
13093 buffer: &Model<Buffer>,
13094 position: language::Anchor,
13095 text: &str,
13096 trigger_in_words: bool,
13097 cx: &mut ViewContext<Editor>,
13098 ) -> bool;
13099
13100 fn sort_completions(&self) -> bool {
13101 true
13102 }
13103}
13104
13105pub trait CodeActionProvider {
13106 fn code_actions(
13107 &self,
13108 buffer: &Model<Buffer>,
13109 range: Range<text::Anchor>,
13110 cx: &mut WindowContext,
13111 ) -> Task<Result<Vec<CodeAction>>>;
13112
13113 fn apply_code_action(
13114 &self,
13115 buffer_handle: Model<Buffer>,
13116 action: CodeAction,
13117 excerpt_id: ExcerptId,
13118 push_to_history: bool,
13119 cx: &mut WindowContext,
13120 ) -> Task<Result<ProjectTransaction>>;
13121}
13122
13123impl CodeActionProvider for Model<Project> {
13124 fn code_actions(
13125 &self,
13126 buffer: &Model<Buffer>,
13127 range: Range<text::Anchor>,
13128 cx: &mut WindowContext,
13129 ) -> Task<Result<Vec<CodeAction>>> {
13130 self.update(cx, |project, cx| {
13131 project.code_actions(buffer, range, None, cx)
13132 })
13133 }
13134
13135 fn apply_code_action(
13136 &self,
13137 buffer_handle: Model<Buffer>,
13138 action: CodeAction,
13139 _excerpt_id: ExcerptId,
13140 push_to_history: bool,
13141 cx: &mut WindowContext,
13142 ) -> Task<Result<ProjectTransaction>> {
13143 self.update(cx, |project, cx| {
13144 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13145 })
13146 }
13147}
13148
13149fn snippet_completions(
13150 project: &Project,
13151 buffer: &Model<Buffer>,
13152 buffer_position: text::Anchor,
13153 cx: &mut AppContext,
13154) -> Task<Result<Vec<Completion>>> {
13155 let language = buffer.read(cx).language_at(buffer_position);
13156 let language_name = language.as_ref().map(|language| language.lsp_id());
13157 let snippet_store = project.snippets().read(cx);
13158 let snippets = snippet_store.snippets_for(language_name, cx);
13159
13160 if snippets.is_empty() {
13161 return Task::ready(Ok(vec![]));
13162 }
13163 let snapshot = buffer.read(cx).text_snapshot();
13164 let chars: String = snapshot
13165 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13166 .collect();
13167
13168 let scope = language.map(|language| language.default_scope());
13169 let executor = cx.background_executor().clone();
13170
13171 cx.background_executor().spawn(async move {
13172 let classifier = CharClassifier::new(scope).for_completion(true);
13173 let mut last_word = chars
13174 .chars()
13175 .take_while(|c| classifier.is_word(*c))
13176 .collect::<String>();
13177 last_word = last_word.chars().rev().collect();
13178
13179 if last_word.is_empty() {
13180 return Ok(vec![]);
13181 }
13182
13183 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13184 let to_lsp = |point: &text::Anchor| {
13185 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13186 point_to_lsp(end)
13187 };
13188 let lsp_end = to_lsp(&buffer_position);
13189
13190 let candidates = snippets
13191 .iter()
13192 .enumerate()
13193 .flat_map(|(ix, snippet)| {
13194 snippet
13195 .prefix
13196 .iter()
13197 .map(move |prefix| StringMatchCandidate::new(ix, prefix.clone()))
13198 })
13199 .collect::<Vec<StringMatchCandidate>>();
13200
13201 let mut matches = fuzzy::match_strings(
13202 &candidates,
13203 &last_word,
13204 last_word.chars().any(|c| c.is_uppercase()),
13205 100,
13206 &Default::default(),
13207 executor,
13208 )
13209 .await;
13210
13211 // Remove all candidates where the query's start does not match the start of any word in the candidate
13212 if let Some(query_start) = last_word.chars().next() {
13213 matches.retain(|string_match| {
13214 split_words(&string_match.string).any(|word| {
13215 // Check that the first codepoint of the word as lowercase matches the first
13216 // codepoint of the query as lowercase
13217 word.chars()
13218 .flat_map(|codepoint| codepoint.to_lowercase())
13219 .zip(query_start.to_lowercase())
13220 .all(|(word_cp, query_cp)| word_cp == query_cp)
13221 })
13222 });
13223 }
13224
13225 let matched_strings = matches
13226 .into_iter()
13227 .map(|m| m.string)
13228 .collect::<HashSet<_>>();
13229
13230 let result: Vec<Completion> = snippets
13231 .into_iter()
13232 .filter_map(|snippet| {
13233 let matching_prefix = snippet
13234 .prefix
13235 .iter()
13236 .find(|prefix| matched_strings.contains(*prefix))?;
13237 let start = as_offset - last_word.len();
13238 let start = snapshot.anchor_before(start);
13239 let range = start..buffer_position;
13240 let lsp_start = to_lsp(&start);
13241 let lsp_range = lsp::Range {
13242 start: lsp_start,
13243 end: lsp_end,
13244 };
13245 Some(Completion {
13246 old_range: range,
13247 new_text: snippet.body.clone(),
13248 label: CodeLabel {
13249 text: matching_prefix.clone(),
13250 runs: vec![],
13251 filter_range: 0..matching_prefix.len(),
13252 },
13253 server_id: LanguageServerId(usize::MAX),
13254 documentation: snippet.description.clone().map(Documentation::SingleLine),
13255 lsp_completion: lsp::CompletionItem {
13256 label: snippet.prefix.first().unwrap().clone(),
13257 kind: Some(CompletionItemKind::SNIPPET),
13258 label_details: snippet.description.as_ref().map(|description| {
13259 lsp::CompletionItemLabelDetails {
13260 detail: Some(description.clone()),
13261 description: None,
13262 }
13263 }),
13264 insert_text_format: Some(InsertTextFormat::SNIPPET),
13265 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13266 lsp::InsertReplaceEdit {
13267 new_text: snippet.body.clone(),
13268 insert: lsp_range,
13269 replace: lsp_range,
13270 },
13271 )),
13272 filter_text: Some(snippet.body.clone()),
13273 sort_text: Some(char::MAX.to_string()),
13274 ..Default::default()
13275 },
13276 confirm: None,
13277 })
13278 })
13279 .collect();
13280
13281 Ok(result)
13282 })
13283}
13284
13285impl CompletionProvider for Model<Project> {
13286 fn completions(
13287 &self,
13288 buffer: &Model<Buffer>,
13289 buffer_position: text::Anchor,
13290 options: CompletionContext,
13291 cx: &mut ViewContext<Editor>,
13292 ) -> Task<Result<Vec<Completion>>> {
13293 self.update(cx, |project, cx| {
13294 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13295 let project_completions = project.completions(buffer, buffer_position, options, cx);
13296 cx.background_executor().spawn(async move {
13297 let mut completions = project_completions.await?;
13298 let snippets_completions = snippets.await?;
13299 completions.extend(snippets_completions);
13300 Ok(completions)
13301 })
13302 })
13303 }
13304
13305 fn resolve_completions(
13306 &self,
13307 buffer: Model<Buffer>,
13308 completion_indices: Vec<usize>,
13309 completions: Arc<RwLock<Box<[Completion]>>>,
13310 cx: &mut ViewContext<Editor>,
13311 ) -> Task<Result<bool>> {
13312 self.update(cx, |project, cx| {
13313 project.resolve_completions(buffer, completion_indices, completions, cx)
13314 })
13315 }
13316
13317 fn apply_additional_edits_for_completion(
13318 &self,
13319 buffer: Model<Buffer>,
13320 completion: Completion,
13321 push_to_history: bool,
13322 cx: &mut ViewContext<Editor>,
13323 ) -> Task<Result<Option<language::Transaction>>> {
13324 self.update(cx, |project, cx| {
13325 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13326 })
13327 }
13328
13329 fn is_completion_trigger(
13330 &self,
13331 buffer: &Model<Buffer>,
13332 position: language::Anchor,
13333 text: &str,
13334 trigger_in_words: bool,
13335 cx: &mut ViewContext<Editor>,
13336 ) -> bool {
13337 let mut chars = text.chars();
13338 let char = if let Some(char) = chars.next() {
13339 char
13340 } else {
13341 return false;
13342 };
13343 if chars.next().is_some() {
13344 return false;
13345 }
13346
13347 let buffer = buffer.read(cx);
13348 let snapshot = buffer.snapshot();
13349 if !snapshot.settings_at(position, cx).show_completions_on_input {
13350 return false;
13351 }
13352 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13353 if trigger_in_words && classifier.is_word(char) {
13354 return true;
13355 }
13356
13357 buffer.completion_triggers().contains(text)
13358 }
13359}
13360
13361impl SemanticsProvider for Model<Project> {
13362 fn hover(
13363 &self,
13364 buffer: &Model<Buffer>,
13365 position: text::Anchor,
13366 cx: &mut AppContext,
13367 ) -> Option<Task<Vec<project::Hover>>> {
13368 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13369 }
13370
13371 fn document_highlights(
13372 &self,
13373 buffer: &Model<Buffer>,
13374 position: text::Anchor,
13375 cx: &mut AppContext,
13376 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13377 Some(self.update(cx, |project, cx| {
13378 project.document_highlights(buffer, position, cx)
13379 }))
13380 }
13381
13382 fn definitions(
13383 &self,
13384 buffer: &Model<Buffer>,
13385 position: text::Anchor,
13386 kind: GotoDefinitionKind,
13387 cx: &mut AppContext,
13388 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13389 Some(self.update(cx, |project, cx| match kind {
13390 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13391 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13392 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13393 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13394 }))
13395 }
13396
13397 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13398 // TODO: make this work for remote projects
13399 self.read(cx)
13400 .language_servers_for_local_buffer(buffer.read(cx), cx)
13401 .any(
13402 |(_, server)| match server.capabilities().inlay_hint_provider {
13403 Some(lsp::OneOf::Left(enabled)) => enabled,
13404 Some(lsp::OneOf::Right(_)) => true,
13405 None => false,
13406 },
13407 )
13408 }
13409
13410 fn inlay_hints(
13411 &self,
13412 buffer_handle: Model<Buffer>,
13413 range: Range<text::Anchor>,
13414 cx: &mut AppContext,
13415 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13416 Some(self.update(cx, |project, cx| {
13417 project.inlay_hints(buffer_handle, range, cx)
13418 }))
13419 }
13420
13421 fn resolve_inlay_hint(
13422 &self,
13423 hint: InlayHint,
13424 buffer_handle: Model<Buffer>,
13425 server_id: LanguageServerId,
13426 cx: &mut AppContext,
13427 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13428 Some(self.update(cx, |project, cx| {
13429 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13430 }))
13431 }
13432
13433 fn range_for_rename(
13434 &self,
13435 buffer: &Model<Buffer>,
13436 position: text::Anchor,
13437 cx: &mut AppContext,
13438 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13439 Some(self.update(cx, |project, cx| {
13440 project.prepare_rename(buffer.clone(), position, cx)
13441 }))
13442 }
13443
13444 fn perform_rename(
13445 &self,
13446 buffer: &Model<Buffer>,
13447 position: text::Anchor,
13448 new_name: String,
13449 cx: &mut AppContext,
13450 ) -> Option<Task<Result<ProjectTransaction>>> {
13451 Some(self.update(cx, |project, cx| {
13452 project.perform_rename(buffer.clone(), position, new_name, cx)
13453 }))
13454 }
13455}
13456
13457fn inlay_hint_settings(
13458 location: Anchor,
13459 snapshot: &MultiBufferSnapshot,
13460 cx: &mut ViewContext<'_, Editor>,
13461) -> InlayHintSettings {
13462 let file = snapshot.file_at(location);
13463 let language = snapshot.language_at(location).map(|l| l.name());
13464 language_settings(language, file, cx).inlay_hints
13465}
13466
13467fn consume_contiguous_rows(
13468 contiguous_row_selections: &mut Vec<Selection<Point>>,
13469 selection: &Selection<Point>,
13470 display_map: &DisplaySnapshot,
13471 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13472) -> (MultiBufferRow, MultiBufferRow) {
13473 contiguous_row_selections.push(selection.clone());
13474 let start_row = MultiBufferRow(selection.start.row);
13475 let mut end_row = ending_row(selection, display_map);
13476
13477 while let Some(next_selection) = selections.peek() {
13478 if next_selection.start.row <= end_row.0 {
13479 end_row = ending_row(next_selection, display_map);
13480 contiguous_row_selections.push(selections.next().unwrap().clone());
13481 } else {
13482 break;
13483 }
13484 }
13485 (start_row, end_row)
13486}
13487
13488fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13489 if next_selection.end.column > 0 || next_selection.is_empty() {
13490 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13491 } else {
13492 MultiBufferRow(next_selection.end.row)
13493 }
13494}
13495
13496impl EditorSnapshot {
13497 pub fn remote_selections_in_range<'a>(
13498 &'a self,
13499 range: &'a Range<Anchor>,
13500 collaboration_hub: &dyn CollaborationHub,
13501 cx: &'a AppContext,
13502 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13503 let participant_names = collaboration_hub.user_names(cx);
13504 let participant_indices = collaboration_hub.user_participant_indices(cx);
13505 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13506 let collaborators_by_replica_id = collaborators_by_peer_id
13507 .iter()
13508 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13509 .collect::<HashMap<_, _>>();
13510 self.buffer_snapshot
13511 .selections_in_range(range, false)
13512 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13513 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13514 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13515 let user_name = participant_names.get(&collaborator.user_id).cloned();
13516 Some(RemoteSelection {
13517 replica_id,
13518 selection,
13519 cursor_shape,
13520 line_mode,
13521 participant_index,
13522 peer_id: collaborator.peer_id,
13523 user_name,
13524 })
13525 })
13526 }
13527
13528 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13529 self.display_snapshot.buffer_snapshot.language_at(position)
13530 }
13531
13532 pub fn is_focused(&self) -> bool {
13533 self.is_focused
13534 }
13535
13536 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13537 self.placeholder_text.as_ref()
13538 }
13539
13540 pub fn scroll_position(&self) -> gpui::Point<f32> {
13541 self.scroll_anchor.scroll_position(&self.display_snapshot)
13542 }
13543
13544 fn gutter_dimensions(
13545 &self,
13546 font_id: FontId,
13547 font_size: Pixels,
13548 em_width: Pixels,
13549 em_advance: Pixels,
13550 max_line_number_width: Pixels,
13551 cx: &AppContext,
13552 ) -> GutterDimensions {
13553 if !self.show_gutter {
13554 return GutterDimensions::default();
13555 }
13556 let descent = cx.text_system().descent(font_id, font_size);
13557
13558 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13559 matches!(
13560 ProjectSettings::get_global(cx).git.git_gutter,
13561 Some(GitGutterSetting::TrackedFiles)
13562 )
13563 });
13564 let gutter_settings = EditorSettings::get_global(cx).gutter;
13565 let show_line_numbers = self
13566 .show_line_numbers
13567 .unwrap_or(gutter_settings.line_numbers);
13568 let line_gutter_width = if show_line_numbers {
13569 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13570 let min_width_for_number_on_gutter = em_advance * 4.0;
13571 max_line_number_width.max(min_width_for_number_on_gutter)
13572 } else {
13573 0.0.into()
13574 };
13575
13576 let show_code_actions = self
13577 .show_code_actions
13578 .unwrap_or(gutter_settings.code_actions);
13579
13580 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13581
13582 let git_blame_entries_width =
13583 self.git_blame_gutter_max_author_length
13584 .map(|max_author_length| {
13585 // Length of the author name, but also space for the commit hash,
13586 // the spacing and the timestamp.
13587 let max_char_count = max_author_length
13588 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13589 + 7 // length of commit sha
13590 + 14 // length of max relative timestamp ("60 minutes ago")
13591 + 4; // gaps and margins
13592
13593 em_advance * max_char_count
13594 });
13595
13596 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13597 left_padding += if show_code_actions || show_runnables {
13598 em_width * 3.0
13599 } else if show_git_gutter && show_line_numbers {
13600 em_width * 2.0
13601 } else if show_git_gutter || show_line_numbers {
13602 em_width
13603 } else {
13604 px(0.)
13605 };
13606
13607 let right_padding = if gutter_settings.folds && show_line_numbers {
13608 em_width * 4.0
13609 } else if gutter_settings.folds {
13610 em_width * 3.0
13611 } else if show_line_numbers {
13612 em_width
13613 } else {
13614 px(0.)
13615 };
13616
13617 GutterDimensions {
13618 left_padding,
13619 right_padding,
13620 width: line_gutter_width + left_padding + right_padding,
13621 margin: -descent,
13622 git_blame_entries_width,
13623 }
13624 }
13625
13626 pub fn render_crease_toggle(
13627 &self,
13628 buffer_row: MultiBufferRow,
13629 row_contains_cursor: bool,
13630 editor: View<Editor>,
13631 cx: &mut WindowContext,
13632 ) -> Option<AnyElement> {
13633 let folded = self.is_line_folded(buffer_row);
13634 let mut is_foldable = false;
13635
13636 if let Some(crease) = self
13637 .crease_snapshot
13638 .query_row(buffer_row, &self.buffer_snapshot)
13639 {
13640 is_foldable = true;
13641 match crease {
13642 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
13643 if let Some(render_toggle) = render_toggle {
13644 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13645 if folded {
13646 editor.update(cx, |editor, cx| {
13647 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13648 });
13649 } else {
13650 editor.update(cx, |editor, cx| {
13651 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13652 });
13653 }
13654 });
13655 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
13656 }
13657 }
13658 }
13659 }
13660
13661 is_foldable |= self.starts_indent(buffer_row);
13662
13663 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
13664 Some(
13665 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
13666 .selected(folded)
13667 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13668 if folded {
13669 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13670 } else {
13671 this.fold_at(&FoldAt { buffer_row }, cx);
13672 }
13673 }))
13674 .into_any_element(),
13675 )
13676 } else {
13677 None
13678 }
13679 }
13680
13681 pub fn render_crease_trailer(
13682 &self,
13683 buffer_row: MultiBufferRow,
13684 cx: &mut WindowContext,
13685 ) -> Option<AnyElement> {
13686 let folded = self.is_line_folded(buffer_row);
13687 if let Crease::Inline { render_trailer, .. } = self
13688 .crease_snapshot
13689 .query_row(buffer_row, &self.buffer_snapshot)?
13690 {
13691 let render_trailer = render_trailer.as_ref()?;
13692 Some(render_trailer(buffer_row, folded, cx))
13693 } else {
13694 None
13695 }
13696 }
13697}
13698
13699impl Deref for EditorSnapshot {
13700 type Target = DisplaySnapshot;
13701
13702 fn deref(&self) -> &Self::Target {
13703 &self.display_snapshot
13704 }
13705}
13706
13707#[derive(Clone, Debug, PartialEq, Eq)]
13708pub enum EditorEvent {
13709 InputIgnored {
13710 text: Arc<str>,
13711 },
13712 InputHandled {
13713 utf16_range_to_replace: Option<Range<isize>>,
13714 text: Arc<str>,
13715 },
13716 ExcerptsAdded {
13717 buffer: Model<Buffer>,
13718 predecessor: ExcerptId,
13719 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
13720 },
13721 ExcerptsRemoved {
13722 ids: Vec<ExcerptId>,
13723 },
13724 ExcerptsEdited {
13725 ids: Vec<ExcerptId>,
13726 },
13727 ExcerptsExpanded {
13728 ids: Vec<ExcerptId>,
13729 },
13730 BufferEdited,
13731 Edited {
13732 transaction_id: clock::Lamport,
13733 },
13734 Reparsed(BufferId),
13735 Focused,
13736 FocusedIn,
13737 Blurred,
13738 DirtyChanged,
13739 Saved,
13740 TitleChanged,
13741 DiffBaseChanged,
13742 SelectionsChanged {
13743 local: bool,
13744 },
13745 ScrollPositionChanged {
13746 local: bool,
13747 autoscroll: bool,
13748 },
13749 Closed,
13750 TransactionUndone {
13751 transaction_id: clock::Lamport,
13752 },
13753 TransactionBegun {
13754 transaction_id: clock::Lamport,
13755 },
13756 Reloaded,
13757 CursorShapeChanged,
13758}
13759
13760impl EventEmitter<EditorEvent> for Editor {}
13761
13762impl FocusableView for Editor {
13763 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
13764 self.focus_handle.clone()
13765 }
13766}
13767
13768impl Render for Editor {
13769 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
13770 let settings = ThemeSettings::get_global(cx);
13771
13772 let mut text_style = match self.mode {
13773 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
13774 color: cx.theme().colors().editor_foreground,
13775 font_family: settings.ui_font.family.clone(),
13776 font_features: settings.ui_font.features.clone(),
13777 font_fallbacks: settings.ui_font.fallbacks.clone(),
13778 font_size: rems(0.875).into(),
13779 font_weight: settings.ui_font.weight,
13780 line_height: relative(settings.buffer_line_height.value()),
13781 ..Default::default()
13782 },
13783 EditorMode::Full => TextStyle {
13784 color: cx.theme().colors().editor_foreground,
13785 font_family: settings.buffer_font.family.clone(),
13786 font_features: settings.buffer_font.features.clone(),
13787 font_fallbacks: settings.buffer_font.fallbacks.clone(),
13788 font_size: settings.buffer_font_size(cx).into(),
13789 font_weight: settings.buffer_font.weight,
13790 line_height: relative(settings.buffer_line_height.value()),
13791 ..Default::default()
13792 },
13793 };
13794 if let Some(text_style_refinement) = &self.text_style_refinement {
13795 text_style.refine(text_style_refinement)
13796 }
13797
13798 let background = match self.mode {
13799 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
13800 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
13801 EditorMode::Full => cx.theme().colors().editor_background,
13802 };
13803
13804 EditorElement::new(
13805 cx.view(),
13806 EditorStyle {
13807 background,
13808 local_player: cx.theme().players().local(),
13809 text: text_style,
13810 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
13811 syntax: cx.theme().syntax().clone(),
13812 status: cx.theme().status().clone(),
13813 inlay_hints_style: make_inlay_hints_style(cx),
13814 suggestions_style: HighlightStyle {
13815 color: Some(cx.theme().status().predictive),
13816 ..HighlightStyle::default()
13817 },
13818 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
13819 },
13820 )
13821 }
13822}
13823
13824impl ViewInputHandler for Editor {
13825 fn text_for_range(
13826 &mut self,
13827 range_utf16: Range<usize>,
13828 adjusted_range: &mut Option<Range<usize>>,
13829 cx: &mut ViewContext<Self>,
13830 ) -> Option<String> {
13831 let snapshot = self.buffer.read(cx).read(cx);
13832 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
13833 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
13834 if (start.0..end.0) != range_utf16 {
13835 adjusted_range.replace(start.0..end.0);
13836 }
13837 Some(snapshot.text_for_range(start..end).collect())
13838 }
13839
13840 fn selected_text_range(
13841 &mut self,
13842 ignore_disabled_input: bool,
13843 cx: &mut ViewContext<Self>,
13844 ) -> Option<UTF16Selection> {
13845 // Prevent the IME menu from appearing when holding down an alphabetic key
13846 // while input is disabled.
13847 if !ignore_disabled_input && !self.input_enabled {
13848 return None;
13849 }
13850
13851 let selection = self.selections.newest::<OffsetUtf16>(cx);
13852 let range = selection.range();
13853
13854 Some(UTF16Selection {
13855 range: range.start.0..range.end.0,
13856 reversed: selection.reversed,
13857 })
13858 }
13859
13860 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
13861 let snapshot = self.buffer.read(cx).read(cx);
13862 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
13863 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
13864 }
13865
13866 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
13867 self.clear_highlights::<InputComposition>(cx);
13868 self.ime_transaction.take();
13869 }
13870
13871 fn replace_text_in_range(
13872 &mut self,
13873 range_utf16: Option<Range<usize>>,
13874 text: &str,
13875 cx: &mut ViewContext<Self>,
13876 ) {
13877 if !self.input_enabled {
13878 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13879 return;
13880 }
13881
13882 self.transact(cx, |this, cx| {
13883 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
13884 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13885 Some(this.selection_replacement_ranges(range_utf16, cx))
13886 } else {
13887 this.marked_text_ranges(cx)
13888 };
13889
13890 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
13891 let newest_selection_id = this.selections.newest_anchor().id;
13892 this.selections
13893 .all::<OffsetUtf16>(cx)
13894 .iter()
13895 .zip(ranges_to_replace.iter())
13896 .find_map(|(selection, range)| {
13897 if selection.id == newest_selection_id {
13898 Some(
13899 (range.start.0 as isize - selection.head().0 as isize)
13900 ..(range.end.0 as isize - selection.head().0 as isize),
13901 )
13902 } else {
13903 None
13904 }
13905 })
13906 });
13907
13908 cx.emit(EditorEvent::InputHandled {
13909 utf16_range_to_replace: range_to_replace,
13910 text: text.into(),
13911 });
13912
13913 if let Some(new_selected_ranges) = new_selected_ranges {
13914 this.change_selections(None, cx, |selections| {
13915 selections.select_ranges(new_selected_ranges)
13916 });
13917 this.backspace(&Default::default(), cx);
13918 }
13919
13920 this.handle_input(text, cx);
13921 });
13922
13923 if let Some(transaction) = self.ime_transaction {
13924 self.buffer.update(cx, |buffer, cx| {
13925 buffer.group_until_transaction(transaction, cx);
13926 });
13927 }
13928
13929 self.unmark_text(cx);
13930 }
13931
13932 fn replace_and_mark_text_in_range(
13933 &mut self,
13934 range_utf16: Option<Range<usize>>,
13935 text: &str,
13936 new_selected_range_utf16: Option<Range<usize>>,
13937 cx: &mut ViewContext<Self>,
13938 ) {
13939 if !self.input_enabled {
13940 return;
13941 }
13942
13943 let transaction = self.transact(cx, |this, cx| {
13944 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
13945 let snapshot = this.buffer.read(cx).read(cx);
13946 if let Some(relative_range_utf16) = range_utf16.as_ref() {
13947 for marked_range in &mut marked_ranges {
13948 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
13949 marked_range.start.0 += relative_range_utf16.start;
13950 marked_range.start =
13951 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
13952 marked_range.end =
13953 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
13954 }
13955 }
13956 Some(marked_ranges)
13957 } else if let Some(range_utf16) = range_utf16 {
13958 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13959 Some(this.selection_replacement_ranges(range_utf16, cx))
13960 } else {
13961 None
13962 };
13963
13964 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
13965 let newest_selection_id = this.selections.newest_anchor().id;
13966 this.selections
13967 .all::<OffsetUtf16>(cx)
13968 .iter()
13969 .zip(ranges_to_replace.iter())
13970 .find_map(|(selection, range)| {
13971 if selection.id == newest_selection_id {
13972 Some(
13973 (range.start.0 as isize - selection.head().0 as isize)
13974 ..(range.end.0 as isize - selection.head().0 as isize),
13975 )
13976 } else {
13977 None
13978 }
13979 })
13980 });
13981
13982 cx.emit(EditorEvent::InputHandled {
13983 utf16_range_to_replace: range_to_replace,
13984 text: text.into(),
13985 });
13986
13987 if let Some(ranges) = ranges_to_replace {
13988 this.change_selections(None, cx, |s| s.select_ranges(ranges));
13989 }
13990
13991 let marked_ranges = {
13992 let snapshot = this.buffer.read(cx).read(cx);
13993 this.selections
13994 .disjoint_anchors()
13995 .iter()
13996 .map(|selection| {
13997 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
13998 })
13999 .collect::<Vec<_>>()
14000 };
14001
14002 if text.is_empty() {
14003 this.unmark_text(cx);
14004 } else {
14005 this.highlight_text::<InputComposition>(
14006 marked_ranges.clone(),
14007 HighlightStyle {
14008 underline: Some(UnderlineStyle {
14009 thickness: px(1.),
14010 color: None,
14011 wavy: false,
14012 }),
14013 ..Default::default()
14014 },
14015 cx,
14016 );
14017 }
14018
14019 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14020 let use_autoclose = this.use_autoclose;
14021 let use_auto_surround = this.use_auto_surround;
14022 this.set_use_autoclose(false);
14023 this.set_use_auto_surround(false);
14024 this.handle_input(text, cx);
14025 this.set_use_autoclose(use_autoclose);
14026 this.set_use_auto_surround(use_auto_surround);
14027
14028 if let Some(new_selected_range) = new_selected_range_utf16 {
14029 let snapshot = this.buffer.read(cx).read(cx);
14030 let new_selected_ranges = marked_ranges
14031 .into_iter()
14032 .map(|marked_range| {
14033 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14034 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14035 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14036 snapshot.clip_offset_utf16(new_start, Bias::Left)
14037 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14038 })
14039 .collect::<Vec<_>>();
14040
14041 drop(snapshot);
14042 this.change_selections(None, cx, |selections| {
14043 selections.select_ranges(new_selected_ranges)
14044 });
14045 }
14046 });
14047
14048 self.ime_transaction = self.ime_transaction.or(transaction);
14049 if let Some(transaction) = self.ime_transaction {
14050 self.buffer.update(cx, |buffer, cx| {
14051 buffer.group_until_transaction(transaction, cx);
14052 });
14053 }
14054
14055 if self.text_highlights::<InputComposition>(cx).is_none() {
14056 self.ime_transaction.take();
14057 }
14058 }
14059
14060 fn bounds_for_range(
14061 &mut self,
14062 range_utf16: Range<usize>,
14063 element_bounds: gpui::Bounds<Pixels>,
14064 cx: &mut ViewContext<Self>,
14065 ) -> Option<gpui::Bounds<Pixels>> {
14066 let text_layout_details = self.text_layout_details(cx);
14067 let gpui::Point {
14068 x: em_width,
14069 y: line_height,
14070 } = self.character_size(cx);
14071
14072 let snapshot = self.snapshot(cx);
14073 let scroll_position = snapshot.scroll_position();
14074 let scroll_left = scroll_position.x * em_width;
14075
14076 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14077 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14078 + self.gutter_dimensions.width
14079 + self.gutter_dimensions.margin;
14080 let y = line_height * (start.row().as_f32() - scroll_position.y);
14081
14082 Some(Bounds {
14083 origin: element_bounds.origin + point(x, y),
14084 size: size(em_width, line_height),
14085 })
14086 }
14087}
14088
14089trait SelectionExt {
14090 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14091 fn spanned_rows(
14092 &self,
14093 include_end_if_at_line_start: bool,
14094 map: &DisplaySnapshot,
14095 ) -> Range<MultiBufferRow>;
14096}
14097
14098impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14099 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14100 let start = self
14101 .start
14102 .to_point(&map.buffer_snapshot)
14103 .to_display_point(map);
14104 let end = self
14105 .end
14106 .to_point(&map.buffer_snapshot)
14107 .to_display_point(map);
14108 if self.reversed {
14109 end..start
14110 } else {
14111 start..end
14112 }
14113 }
14114
14115 fn spanned_rows(
14116 &self,
14117 include_end_if_at_line_start: bool,
14118 map: &DisplaySnapshot,
14119 ) -> Range<MultiBufferRow> {
14120 let start = self.start.to_point(&map.buffer_snapshot);
14121 let mut end = self.end.to_point(&map.buffer_snapshot);
14122 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14123 end.row -= 1;
14124 }
14125
14126 let buffer_start = map.prev_line_boundary(start).0;
14127 let buffer_end = map.next_line_boundary(end).0;
14128 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14129 }
14130}
14131
14132impl<T: InvalidationRegion> InvalidationStack<T> {
14133 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14134 where
14135 S: Clone + ToOffset,
14136 {
14137 while let Some(region) = self.last() {
14138 let all_selections_inside_invalidation_ranges =
14139 if selections.len() == region.ranges().len() {
14140 selections
14141 .iter()
14142 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14143 .all(|(selection, invalidation_range)| {
14144 let head = selection.head().to_offset(buffer);
14145 invalidation_range.start <= head && invalidation_range.end >= head
14146 })
14147 } else {
14148 false
14149 };
14150
14151 if all_selections_inside_invalidation_ranges {
14152 break;
14153 } else {
14154 self.pop();
14155 }
14156 }
14157 }
14158}
14159
14160impl<T> Default for InvalidationStack<T> {
14161 fn default() -> Self {
14162 Self(Default::default())
14163 }
14164}
14165
14166impl<T> Deref for InvalidationStack<T> {
14167 type Target = Vec<T>;
14168
14169 fn deref(&self) -> &Self::Target {
14170 &self.0
14171 }
14172}
14173
14174impl<T> DerefMut for InvalidationStack<T> {
14175 fn deref_mut(&mut self) -> &mut Self::Target {
14176 &mut self.0
14177 }
14178}
14179
14180impl InvalidationRegion for SnippetState {
14181 fn ranges(&self) -> &[Range<Anchor>] {
14182 &self.ranges[self.active_index]
14183 }
14184}
14185
14186pub fn diagnostic_block_renderer(
14187 diagnostic: Diagnostic,
14188 max_message_rows: Option<u8>,
14189 allow_closing: bool,
14190 _is_valid: bool,
14191) -> RenderBlock {
14192 let (text_without_backticks, code_ranges) =
14193 highlight_diagnostic_message(&diagnostic, max_message_rows);
14194
14195 Arc::new(move |cx: &mut BlockContext| {
14196 let group_id: SharedString = cx.block_id.to_string().into();
14197
14198 let mut text_style = cx.text_style().clone();
14199 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14200 let theme_settings = ThemeSettings::get_global(cx);
14201 text_style.font_family = theme_settings.buffer_font.family.clone();
14202 text_style.font_style = theme_settings.buffer_font.style;
14203 text_style.font_features = theme_settings.buffer_font.features.clone();
14204 text_style.font_weight = theme_settings.buffer_font.weight;
14205
14206 let multi_line_diagnostic = diagnostic.message.contains('\n');
14207
14208 let buttons = |diagnostic: &Diagnostic| {
14209 if multi_line_diagnostic {
14210 v_flex()
14211 } else {
14212 h_flex()
14213 }
14214 .when(allow_closing, |div| {
14215 div.children(diagnostic.is_primary.then(|| {
14216 IconButton::new("close-block", IconName::XCircle)
14217 .icon_color(Color::Muted)
14218 .size(ButtonSize::Compact)
14219 .style(ButtonStyle::Transparent)
14220 .visible_on_hover(group_id.clone())
14221 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14222 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14223 }))
14224 })
14225 .child(
14226 IconButton::new("copy-block", IconName::Copy)
14227 .icon_color(Color::Muted)
14228 .size(ButtonSize::Compact)
14229 .style(ButtonStyle::Transparent)
14230 .visible_on_hover(group_id.clone())
14231 .on_click({
14232 let message = diagnostic.message.clone();
14233 move |_click, cx| {
14234 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14235 }
14236 })
14237 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14238 )
14239 };
14240
14241 let icon_size = buttons(&diagnostic)
14242 .into_any_element()
14243 .layout_as_root(AvailableSpace::min_size(), cx);
14244
14245 h_flex()
14246 .id(cx.block_id)
14247 .group(group_id.clone())
14248 .relative()
14249 .size_full()
14250 .block_mouse_down()
14251 .pl(cx.gutter_dimensions.width)
14252 .w(cx.max_width - cx.gutter_dimensions.full_width())
14253 .child(
14254 div()
14255 .flex()
14256 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14257 .flex_shrink(),
14258 )
14259 .child(buttons(&diagnostic))
14260 .child(div().flex().flex_shrink_0().child(
14261 StyledText::new(text_without_backticks.clone()).with_highlights(
14262 &text_style,
14263 code_ranges.iter().map(|range| {
14264 (
14265 range.clone(),
14266 HighlightStyle {
14267 font_weight: Some(FontWeight::BOLD),
14268 ..Default::default()
14269 },
14270 )
14271 }),
14272 ),
14273 ))
14274 .into_any_element()
14275 })
14276}
14277
14278pub fn highlight_diagnostic_message(
14279 diagnostic: &Diagnostic,
14280 mut max_message_rows: Option<u8>,
14281) -> (SharedString, Vec<Range<usize>>) {
14282 let mut text_without_backticks = String::new();
14283 let mut code_ranges = Vec::new();
14284
14285 if let Some(source) = &diagnostic.source {
14286 text_without_backticks.push_str(source);
14287 code_ranges.push(0..source.len());
14288 text_without_backticks.push_str(": ");
14289 }
14290
14291 let mut prev_offset = 0;
14292 let mut in_code_block = false;
14293 let has_row_limit = max_message_rows.is_some();
14294 let mut newline_indices = diagnostic
14295 .message
14296 .match_indices('\n')
14297 .filter(|_| has_row_limit)
14298 .map(|(ix, _)| ix)
14299 .fuse()
14300 .peekable();
14301
14302 for (quote_ix, _) in diagnostic
14303 .message
14304 .match_indices('`')
14305 .chain([(diagnostic.message.len(), "")])
14306 {
14307 let mut first_newline_ix = None;
14308 let mut last_newline_ix = None;
14309 while let Some(newline_ix) = newline_indices.peek() {
14310 if *newline_ix < quote_ix {
14311 if first_newline_ix.is_none() {
14312 first_newline_ix = Some(*newline_ix);
14313 }
14314 last_newline_ix = Some(*newline_ix);
14315
14316 if let Some(rows_left) = &mut max_message_rows {
14317 if *rows_left == 0 {
14318 break;
14319 } else {
14320 *rows_left -= 1;
14321 }
14322 }
14323 let _ = newline_indices.next();
14324 } else {
14325 break;
14326 }
14327 }
14328 let prev_len = text_without_backticks.len();
14329 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14330 text_without_backticks.push_str(new_text);
14331 if in_code_block {
14332 code_ranges.push(prev_len..text_without_backticks.len());
14333 }
14334 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14335 in_code_block = !in_code_block;
14336 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14337 text_without_backticks.push_str("...");
14338 break;
14339 }
14340 }
14341
14342 (text_without_backticks.into(), code_ranges)
14343}
14344
14345fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14346 match severity {
14347 DiagnosticSeverity::ERROR => colors.error,
14348 DiagnosticSeverity::WARNING => colors.warning,
14349 DiagnosticSeverity::INFORMATION => colors.info,
14350 DiagnosticSeverity::HINT => colors.info,
14351 _ => colors.ignored,
14352 }
14353}
14354
14355pub fn styled_runs_for_code_label<'a>(
14356 label: &'a CodeLabel,
14357 syntax_theme: &'a theme::SyntaxTheme,
14358) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14359 let fade_out = HighlightStyle {
14360 fade_out: Some(0.35),
14361 ..Default::default()
14362 };
14363
14364 let mut prev_end = label.filter_range.end;
14365 label
14366 .runs
14367 .iter()
14368 .enumerate()
14369 .flat_map(move |(ix, (range, highlight_id))| {
14370 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14371 style
14372 } else {
14373 return Default::default();
14374 };
14375 let mut muted_style = style;
14376 muted_style.highlight(fade_out);
14377
14378 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14379 if range.start >= label.filter_range.end {
14380 if range.start > prev_end {
14381 runs.push((prev_end..range.start, fade_out));
14382 }
14383 runs.push((range.clone(), muted_style));
14384 } else if range.end <= label.filter_range.end {
14385 runs.push((range.clone(), style));
14386 } else {
14387 runs.push((range.start..label.filter_range.end, style));
14388 runs.push((label.filter_range.end..range.end, muted_style));
14389 }
14390 prev_end = cmp::max(prev_end, range.end);
14391
14392 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14393 runs.push((prev_end..label.text.len(), fade_out));
14394 }
14395
14396 runs
14397 })
14398}
14399
14400pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14401 let mut prev_index = 0;
14402 let mut prev_codepoint: Option<char> = None;
14403 text.char_indices()
14404 .chain([(text.len(), '\0')])
14405 .filter_map(move |(index, codepoint)| {
14406 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14407 let is_boundary = index == text.len()
14408 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14409 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14410 if is_boundary {
14411 let chunk = &text[prev_index..index];
14412 prev_index = index;
14413 Some(chunk)
14414 } else {
14415 None
14416 }
14417 })
14418}
14419
14420pub trait RangeToAnchorExt: Sized {
14421 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14422
14423 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14424 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14425 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14426 }
14427}
14428
14429impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14430 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14431 let start_offset = self.start.to_offset(snapshot);
14432 let end_offset = self.end.to_offset(snapshot);
14433 if start_offset == end_offset {
14434 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14435 } else {
14436 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14437 }
14438 }
14439}
14440
14441pub trait RowExt {
14442 fn as_f32(&self) -> f32;
14443
14444 fn next_row(&self) -> Self;
14445
14446 fn previous_row(&self) -> Self;
14447
14448 fn minus(&self, other: Self) -> u32;
14449}
14450
14451impl RowExt for DisplayRow {
14452 fn as_f32(&self) -> f32 {
14453 self.0 as f32
14454 }
14455
14456 fn next_row(&self) -> Self {
14457 Self(self.0 + 1)
14458 }
14459
14460 fn previous_row(&self) -> Self {
14461 Self(self.0.saturating_sub(1))
14462 }
14463
14464 fn minus(&self, other: Self) -> u32 {
14465 self.0 - other.0
14466 }
14467}
14468
14469impl RowExt for MultiBufferRow {
14470 fn as_f32(&self) -> f32 {
14471 self.0 as f32
14472 }
14473
14474 fn next_row(&self) -> Self {
14475 Self(self.0 + 1)
14476 }
14477
14478 fn previous_row(&self) -> Self {
14479 Self(self.0.saturating_sub(1))
14480 }
14481
14482 fn minus(&self, other: Self) -> u32 {
14483 self.0 - other.0
14484 }
14485}
14486
14487trait RowRangeExt {
14488 type Row;
14489
14490 fn len(&self) -> usize;
14491
14492 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14493}
14494
14495impl RowRangeExt for Range<MultiBufferRow> {
14496 type Row = MultiBufferRow;
14497
14498 fn len(&self) -> usize {
14499 (self.end.0 - self.start.0) as usize
14500 }
14501
14502 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14503 (self.start.0..self.end.0).map(MultiBufferRow)
14504 }
14505}
14506
14507impl RowRangeExt for Range<DisplayRow> {
14508 type Row = DisplayRow;
14509
14510 fn len(&self) -> usize {
14511 (self.end.0 - self.start.0) as usize
14512 }
14513
14514 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14515 (self.start.0..self.end.0).map(DisplayRow)
14516 }
14517}
14518
14519fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14520 if hunk.diff_base_byte_range.is_empty() {
14521 DiffHunkStatus::Added
14522 } else if hunk.row_range.is_empty() {
14523 DiffHunkStatus::Removed
14524 } else {
14525 DiffHunkStatus::Modified
14526 }
14527}
14528
14529/// If select range has more than one line, we
14530/// just point the cursor to range.start.
14531fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14532 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14533 range
14534 } else {
14535 range.start..range.start
14536 }
14537}
14538
14539pub struct KillRing(ClipboardItem);
14540impl Global for KillRing {}
14541
14542const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);