1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behavior.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod clangd_ext;
19mod debounced_delay;
20pub mod display_map;
21mod editor_settings;
22mod editor_settings_controls;
23mod element;
24mod git;
25mod highlight_matching_bracket;
26mod hover_links;
27mod hover_popover;
28mod hunk_diff;
29mod indent_guides;
30mod inlay_hint_cache;
31mod inline_completion_provider;
32pub mod items;
33mod linked_editing_ranges;
34mod lsp_ext;
35mod mouse_context_menu;
36pub mod movement;
37mod persistence;
38mod proposed_changes_editor;
39mod rust_analyzer_ext;
40pub mod scroll;
41mod selections_collection;
42pub mod tasks;
43
44#[cfg(test)]
45mod editor_tests;
46mod signature_help;
47#[cfg(any(test, feature = "test-support"))]
48pub mod test;
49
50use ::git::diff::DiffHunkStatus;
51pub(crate) use actions::*;
52pub use actions::{OpenExcerpts, OpenExcerptsSplit};
53use aho_corasick::AhoCorasick;
54use anyhow::{anyhow, Context as _, Result};
55use blink_manager::BlinkManager;
56use client::{Collaborator, ParticipantIndex};
57use clock::ReplicaId;
58use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
59use convert_case::{Case, Casing};
60use debounced_delay::DebouncedDelay;
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::{StringMatch, StringMatchCandidate};
73use git::blame::GitBlame;
74use gpui::{
75 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
76 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
77 ClipboardItem, Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent,
78 FocusableView, FontId, FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext,
79 ListSizingBehavior, Model, ModelContext, MouseButton, PaintQuad, ParentElement, Pixels, Render,
80 ScrollStrategy, SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task,
81 TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle, UniformListScrollHandle, View,
82 ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle, WeakView, WindowContext,
83};
84use highlight_matching_bracket::refresh_matching_bracket_highlights;
85use hover_popover::{hide_hover, HoverState};
86pub(crate) use hunk_diff::HoveredHunk;
87use hunk_diff::{diff_hunk_to_display, ExpandedHunks};
88use indent_guides::ActiveIndentGuidesState;
89use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
90pub use inline_completion_provider::*;
91pub use items::MAX_TAB_TITLE_LEN;
92use itertools::Itertools;
93use language::{
94 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
95 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
96 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
97 Point, Selection, SelectionGoal, TransactionId,
98};
99use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
100use linked_editing_ranges::refresh_linked_ranges;
101pub use proposed_changes_editor::{
102 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
103};
104use similar::{ChangeTag, TextDiff};
105use std::iter::Peekable;
106use task::{ResolvedTask, TaskTemplate, TaskVariables};
107
108use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
109pub use lsp::CompletionContext;
110use lsp::{
111 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
112 LanguageServerId, LanguageServerName,
113};
114use mouse_context_menu::MouseContextMenu;
115use movement::TextLayoutDetails;
116pub use multi_buffer::{
117 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
118 ToPoint,
119};
120use multi_buffer::{
121 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
122};
123use ordered_float::OrderedFloat;
124use parking_lot::{Mutex, RwLock};
125use project::{
126 lsp_store::{FormatTarget, FormatTrigger},
127 project_settings::{GitGutterSetting, ProjectSettings},
128 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Item, Location,
129 LocationLink, Project, ProjectTransaction, TaskSourceKind,
130};
131use rand::prelude::*;
132use rpc::{proto::*, ErrorExt};
133use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
134use selections_collection::{
135 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
136};
137use serde::{Deserialize, Serialize};
138use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
139use smallvec::SmallVec;
140use snippet::Snippet;
141use std::{
142 any::TypeId,
143 borrow::Cow,
144 cell::RefCell,
145 cmp::{self, Ordering, Reverse},
146 mem,
147 num::NonZeroU32,
148 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
149 path::{Path, PathBuf},
150 rc::Rc,
151 sync::Arc,
152 time::{Duration, Instant},
153};
154pub use sum_tree::Bias;
155use sum_tree::TreeMap;
156use text::{BufferId, OffsetUtf16, Rope};
157use theme::{
158 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
159 ThemeColors, ThemeSettings,
160};
161use ui::{
162 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
163 ListItem, Popover, PopoverMenuHandle, Tooltip,
164};
165use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
166use workspace::item::{ItemHandle, PreviewTabsSettings};
167use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
168use workspace::{
169 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
170};
171use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
172
173use crate::hover_links::find_url;
174use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
175
176pub const FILE_HEADER_HEIGHT: u32 = 2;
177pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
178pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
179pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
180const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
181const MAX_LINE_LEN: usize = 1024;
182const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
183const MAX_SELECTION_HISTORY_LEN: usize = 1024;
184pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
185#[doc(hidden)]
186pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
187#[doc(hidden)]
188pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
189
190pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
191pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
192
193pub fn render_parsed_markdown(
194 element_id: impl Into<ElementId>,
195 parsed: &language::ParsedMarkdown,
196 editor_style: &EditorStyle,
197 workspace: Option<WeakView<Workspace>>,
198 cx: &mut WindowContext,
199) -> InteractiveText {
200 let code_span_background_color = cx
201 .theme()
202 .colors()
203 .editor_document_highlight_read_background;
204
205 let highlights = gpui::combine_highlights(
206 parsed.highlights.iter().filter_map(|(range, highlight)| {
207 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
208 Some((range.clone(), highlight))
209 }),
210 parsed
211 .regions
212 .iter()
213 .zip(&parsed.region_ranges)
214 .filter_map(|(region, range)| {
215 if region.code {
216 Some((
217 range.clone(),
218 HighlightStyle {
219 background_color: Some(code_span_background_color),
220 ..Default::default()
221 },
222 ))
223 } else {
224 None
225 }
226 }),
227 );
228
229 let mut links = Vec::new();
230 let mut link_ranges = Vec::new();
231 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
232 if let Some(link) = region.link.clone() {
233 links.push(link);
234 link_ranges.push(range.clone());
235 }
236 }
237
238 InteractiveText::new(
239 element_id,
240 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
241 )
242 .on_click(link_ranges, move |clicked_range_ix, cx| {
243 match &links[clicked_range_ix] {
244 markdown::Link::Web { url } => cx.open_url(url),
245 markdown::Link::Path { path } => {
246 if let Some(workspace) = &workspace {
247 _ = workspace.update(cx, |workspace, cx| {
248 workspace.open_abs_path(path.clone(), false, cx).detach();
249 });
250 }
251 }
252 }
253 })
254}
255
256#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
257pub(crate) enum InlayId {
258 Suggestion(usize),
259 Hint(usize),
260}
261
262impl InlayId {
263 fn id(&self) -> usize {
264 match self {
265 Self::Suggestion(id) => *id,
266 Self::Hint(id) => *id,
267 }
268 }
269}
270
271enum DiffRowHighlight {}
272enum DocumentHighlightRead {}
273enum DocumentHighlightWrite {}
274enum InputComposition {}
275
276#[derive(Copy, Clone, PartialEq, Eq)]
277pub enum Direction {
278 Prev,
279 Next,
280}
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}
337
338pub struct SearchWithinRange;
339
340trait InvalidationRegion {
341 fn ranges(&self) -> &[Range<Anchor>];
342}
343
344#[derive(Clone, Debug, PartialEq)]
345pub enum SelectPhase {
346 Begin {
347 position: DisplayPoint,
348 add: bool,
349 click_count: usize,
350 },
351 BeginColumnar {
352 position: DisplayPoint,
353 reset: bool,
354 goal_column: u32,
355 },
356 Extend {
357 position: DisplayPoint,
358 click_count: usize,
359 },
360 Update {
361 position: DisplayPoint,
362 goal_column: u32,
363 scroll_delta: gpui::Point<f32>,
364 },
365 End,
366}
367
368#[derive(Clone, Debug)]
369pub enum SelectMode {
370 Character,
371 Word(Range<Anchor>),
372 Line(Range<Anchor>),
373 All,
374}
375
376#[derive(Copy, Clone, PartialEq, Eq, Debug)]
377pub enum EditorMode {
378 SingleLine { auto_width: bool },
379 AutoHeight { max_lines: usize },
380 Full,
381}
382
383#[derive(Copy, Clone, Debug)]
384pub enum SoftWrap {
385 /// Prefer not to wrap at all.
386 ///
387 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
388 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
389 GitDiff,
390 /// Prefer a single line generally, unless an overly long line is encountered.
391 None,
392 /// Soft wrap lines that exceed the editor width.
393 EditorWidth,
394 /// Soft wrap lines at the preferred line length.
395 Column(u32),
396 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
397 Bounded(u32),
398}
399
400#[derive(Clone)]
401pub struct EditorStyle {
402 pub background: Hsla,
403 pub local_player: PlayerColor,
404 pub text: TextStyle,
405 pub scrollbar_width: Pixels,
406 pub syntax: Arc<SyntaxTheme>,
407 pub status: StatusColors,
408 pub inlay_hints_style: HighlightStyle,
409 pub suggestions_style: HighlightStyle,
410 pub unnecessary_code_fade: f32,
411}
412
413impl Default for EditorStyle {
414 fn default() -> Self {
415 Self {
416 background: Hsla::default(),
417 local_player: PlayerColor::default(),
418 text: TextStyle::default(),
419 scrollbar_width: Pixels::default(),
420 syntax: Default::default(),
421 // HACK: Status colors don't have a real default.
422 // We should look into removing the status colors from the editor
423 // style and retrieve them directly from the theme.
424 status: StatusColors::dark(),
425 inlay_hints_style: HighlightStyle::default(),
426 suggestions_style: HighlightStyle::default(),
427 unnecessary_code_fade: Default::default(),
428 }
429 }
430}
431
432pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
433 let show_background = language_settings::language_settings(None, None, cx)
434 .inlay_hints
435 .show_background;
436
437 HighlightStyle {
438 color: Some(cx.theme().status().hint),
439 background_color: show_background.then(|| cx.theme().status().hint_background),
440 ..HighlightStyle::default()
441 }
442}
443
444type CompletionId = usize;
445
446#[derive(Clone, Debug)]
447struct CompletionState {
448 // render_inlay_ids represents the inlay hints that are inserted
449 // for rendering the inline completions. They may be discontinuous
450 // in the event that the completion provider returns some intersection
451 // with the existing content.
452 render_inlay_ids: Vec<InlayId>,
453 // text is the resulting rope that is inserted when the user accepts a completion.
454 text: Rope,
455 // position is the position of the cursor when the completion was triggered.
456 position: multi_buffer::Anchor,
457 // delete_range is the range of text that this completion state covers.
458 // if the completion is accepted, this range should be deleted.
459 delete_range: Option<Range<multi_buffer::Anchor>>,
460}
461
462#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
463struct EditorActionId(usize);
464
465impl EditorActionId {
466 pub fn post_inc(&mut self) -> Self {
467 let answer = self.0;
468
469 *self = Self(answer + 1);
470
471 Self(answer)
472 }
473}
474
475// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
476// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
477
478type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
479type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
480
481#[derive(Default)]
482struct ScrollbarMarkerState {
483 scrollbar_size: Size<Pixels>,
484 dirty: bool,
485 markers: Arc<[PaintQuad]>,
486 pending_refresh: Option<Task<Result<()>>>,
487}
488
489impl ScrollbarMarkerState {
490 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
491 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
492 }
493}
494
495#[derive(Clone, Debug)]
496struct RunnableTasks {
497 templates: Vec<(TaskSourceKind, TaskTemplate)>,
498 offset: MultiBufferOffset,
499 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
500 column: u32,
501 // Values of all named captures, including those starting with '_'
502 extra_variables: HashMap<String, String>,
503 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
504 context_range: Range<BufferOffset>,
505}
506
507impl RunnableTasks {
508 fn resolve<'a>(
509 &'a self,
510 cx: &'a task::TaskContext,
511 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
512 self.templates.iter().filter_map(|(kind, template)| {
513 template
514 .resolve_task(&kind.to_id_base(), cx)
515 .map(|task| (kind.clone(), task))
516 })
517 }
518}
519
520#[derive(Clone)]
521struct ResolvedTasks {
522 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
523 position: Anchor,
524}
525#[derive(Copy, Clone, Debug)]
526struct MultiBufferOffset(usize);
527#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
528struct BufferOffset(usize);
529
530// Addons allow storing per-editor state in other crates (e.g. Vim)
531pub trait Addon: 'static {
532 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
533
534 fn to_any(&self) -> &dyn std::any::Any;
535}
536
537#[derive(Debug, Copy, Clone, PartialEq, Eq)]
538pub enum IsVimMode {
539 Yes,
540 No,
541}
542
543/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
544///
545/// See the [module level documentation](self) for more information.
546pub struct Editor {
547 focus_handle: FocusHandle,
548 last_focused_descendant: Option<WeakFocusHandle>,
549 /// The text buffer being edited
550 buffer: Model<MultiBuffer>,
551 /// Map of how text in the buffer should be displayed.
552 /// Handles soft wraps, folds, fake inlay text insertions, etc.
553 pub display_map: Model<DisplayMap>,
554 pub selections: SelectionsCollection,
555 pub scroll_manager: ScrollManager,
556 /// When inline assist editors are linked, they all render cursors because
557 /// typing enters text into each of them, even the ones that aren't focused.
558 pub(crate) show_cursor_when_unfocused: bool,
559 columnar_selection_tail: Option<Anchor>,
560 add_selections_state: Option<AddSelectionsState>,
561 select_next_state: Option<SelectNextState>,
562 select_prev_state: Option<SelectNextState>,
563 selection_history: SelectionHistory,
564 autoclose_regions: Vec<AutocloseRegion>,
565 snippet_stack: InvalidationStack<SnippetState>,
566 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
567 ime_transaction: Option<TransactionId>,
568 active_diagnostics: Option<ActiveDiagnosticGroup>,
569 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
570
571 project: Option<Model<Project>>,
572 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
573 completion_provider: Option<Box<dyn CompletionProvider>>,
574 collaboration_hub: Option<Box<dyn CollaborationHub>>,
575 blink_manager: Model<BlinkManager>,
576 show_cursor_names: bool,
577 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
578 pub show_local_selections: bool,
579 mode: EditorMode,
580 show_breadcrumbs: bool,
581 show_gutter: bool,
582 show_line_numbers: Option<bool>,
583 use_relative_line_numbers: Option<bool>,
584 show_git_diff_gutter: Option<bool>,
585 show_code_actions: Option<bool>,
586 show_runnables: Option<bool>,
587 show_wrap_guides: Option<bool>,
588 show_indent_guides: Option<bool>,
589 placeholder_text: Option<Arc<str>>,
590 highlight_order: usize,
591 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
592 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
593 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
594 scrollbar_marker_state: ScrollbarMarkerState,
595 active_indent_guides_state: ActiveIndentGuidesState,
596 nav_history: Option<ItemNavHistory>,
597 context_menu: RwLock<Option<ContextMenu>>,
598 mouse_context_menu: Option<MouseContextMenu>,
599 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
600 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
601 signature_help_state: SignatureHelpState,
602 auto_signature_help: Option<bool>,
603 find_all_references_task_sources: Vec<Anchor>,
604 next_completion_id: CompletionId,
605 completion_documentation_pre_resolve_debounce: DebouncedDelay,
606 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
607 code_actions_task: Option<Task<Result<()>>>,
608 document_highlights_task: Option<Task<()>>,
609 linked_editing_range_task: Option<Task<Option<()>>>,
610 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
611 pending_rename: Option<RenameState>,
612 searchable: bool,
613 cursor_shape: CursorShape,
614 current_line_highlight: Option<CurrentLineHighlight>,
615 collapse_matches: bool,
616 autoindent_mode: Option<AutoindentMode>,
617 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
618 input_enabled: bool,
619 use_modal_editing: bool,
620 read_only: bool,
621 leader_peer_id: Option<PeerId>,
622 remote_id: Option<ViewId>,
623 hover_state: HoverState,
624 gutter_hovered: bool,
625 hovered_link_state: Option<HoveredLinkState>,
626 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
627 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
628 active_inline_completion: Option<CompletionState>,
629 // enable_inline_completions is a switch that Vim can use to disable
630 // inline completions based on its mode.
631 enable_inline_completions: bool,
632 show_inline_completions_override: Option<bool>,
633 inlay_hint_cache: InlayHintCache,
634 expanded_hunks: ExpandedHunks,
635 next_inlay_id: usize,
636 _subscriptions: Vec<Subscription>,
637 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
638 gutter_dimensions: GutterDimensions,
639 style: Option<EditorStyle>,
640 text_style_refinement: Option<TextStyleRefinement>,
641 next_editor_action_id: EditorActionId,
642 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
643 use_autoclose: bool,
644 use_auto_surround: bool,
645 auto_replace_emoji_shortcode: bool,
646 show_git_blame_gutter: bool,
647 show_git_blame_inline: bool,
648 show_git_blame_inline_delay_task: Option<Task<()>>,
649 git_blame_inline_enabled: bool,
650 serialize_dirty_buffers: bool,
651 show_selection_menu: Option<bool>,
652 blame: Option<Model<GitBlame>>,
653 blame_subscription: Option<Subscription>,
654 custom_context_menu: Option<
655 Box<
656 dyn 'static
657 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
658 >,
659 >,
660 last_bounds: Option<Bounds<Pixels>>,
661 expect_bounds_change: Option<Bounds<Pixels>>,
662 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
663 tasks_update_task: Option<Task<()>>,
664 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
665 breadcrumb_header: Option<String>,
666 focused_block: Option<FocusedBlock>,
667 next_scroll_position: NextScrollCursorCenterTopBottom,
668 addons: HashMap<TypeId, Box<dyn Addon>>,
669 _scroll_cursor_center_top_bottom_task: Task<()>,
670}
671
672#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
673enum NextScrollCursorCenterTopBottom {
674 #[default]
675 Center,
676 Top,
677 Bottom,
678}
679
680impl NextScrollCursorCenterTopBottom {
681 fn next(&self) -> Self {
682 match self {
683 Self::Center => Self::Top,
684 Self::Top => Self::Bottom,
685 Self::Bottom => Self::Center,
686 }
687 }
688}
689
690#[derive(Clone)]
691pub struct EditorSnapshot {
692 pub mode: EditorMode,
693 show_gutter: bool,
694 show_line_numbers: Option<bool>,
695 show_git_diff_gutter: Option<bool>,
696 show_code_actions: Option<bool>,
697 show_runnables: Option<bool>,
698 git_blame_gutter_max_author_length: Option<usize>,
699 pub display_snapshot: DisplaySnapshot,
700 pub placeholder_text: Option<Arc<str>>,
701 is_focused: bool,
702 scroll_anchor: ScrollAnchor,
703 ongoing_scroll: OngoingScroll,
704 current_line_highlight: CurrentLineHighlight,
705 gutter_hovered: bool,
706}
707
708const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
709
710#[derive(Default, Debug, Clone, Copy)]
711pub struct GutterDimensions {
712 pub left_padding: Pixels,
713 pub right_padding: Pixels,
714 pub width: Pixels,
715 pub margin: Pixels,
716 pub git_blame_entries_width: Option<Pixels>,
717}
718
719impl GutterDimensions {
720 /// The full width of the space taken up by the gutter.
721 pub fn full_width(&self) -> Pixels {
722 self.margin + self.width
723 }
724
725 /// The width of the space reserved for the fold indicators,
726 /// use alongside 'justify_end' and `gutter_width` to
727 /// right align content with the line numbers
728 pub fn fold_area_width(&self) -> Pixels {
729 self.margin + self.right_padding
730 }
731}
732
733#[derive(Debug)]
734pub struct RemoteSelection {
735 pub replica_id: ReplicaId,
736 pub selection: Selection<Anchor>,
737 pub cursor_shape: CursorShape,
738 pub peer_id: PeerId,
739 pub line_mode: bool,
740 pub participant_index: Option<ParticipantIndex>,
741 pub user_name: Option<SharedString>,
742}
743
744#[derive(Clone, Debug)]
745struct SelectionHistoryEntry {
746 selections: Arc<[Selection<Anchor>]>,
747 select_next_state: Option<SelectNextState>,
748 select_prev_state: Option<SelectNextState>,
749 add_selections_state: Option<AddSelectionsState>,
750}
751
752enum SelectionHistoryMode {
753 Normal,
754 Undoing,
755 Redoing,
756}
757
758#[derive(Clone, PartialEq, Eq, Hash)]
759struct HoveredCursor {
760 replica_id: u16,
761 selection_id: usize,
762}
763
764impl Default for SelectionHistoryMode {
765 fn default() -> Self {
766 Self::Normal
767 }
768}
769
770#[derive(Default)]
771struct SelectionHistory {
772 #[allow(clippy::type_complexity)]
773 selections_by_transaction:
774 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
775 mode: SelectionHistoryMode,
776 undo_stack: VecDeque<SelectionHistoryEntry>,
777 redo_stack: VecDeque<SelectionHistoryEntry>,
778}
779
780impl SelectionHistory {
781 fn insert_transaction(
782 &mut self,
783 transaction_id: TransactionId,
784 selections: Arc<[Selection<Anchor>]>,
785 ) {
786 self.selections_by_transaction
787 .insert(transaction_id, (selections, None));
788 }
789
790 #[allow(clippy::type_complexity)]
791 fn transaction(
792 &self,
793 transaction_id: TransactionId,
794 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
795 self.selections_by_transaction.get(&transaction_id)
796 }
797
798 #[allow(clippy::type_complexity)]
799 fn transaction_mut(
800 &mut self,
801 transaction_id: TransactionId,
802 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
803 self.selections_by_transaction.get_mut(&transaction_id)
804 }
805
806 fn push(&mut self, entry: SelectionHistoryEntry) {
807 if !entry.selections.is_empty() {
808 match self.mode {
809 SelectionHistoryMode::Normal => {
810 self.push_undo(entry);
811 self.redo_stack.clear();
812 }
813 SelectionHistoryMode::Undoing => self.push_redo(entry),
814 SelectionHistoryMode::Redoing => self.push_undo(entry),
815 }
816 }
817 }
818
819 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
820 if self
821 .undo_stack
822 .back()
823 .map_or(true, |e| e.selections != entry.selections)
824 {
825 self.undo_stack.push_back(entry);
826 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
827 self.undo_stack.pop_front();
828 }
829 }
830 }
831
832 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
833 if self
834 .redo_stack
835 .back()
836 .map_or(true, |e| e.selections != entry.selections)
837 {
838 self.redo_stack.push_back(entry);
839 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
840 self.redo_stack.pop_front();
841 }
842 }
843 }
844}
845
846struct RowHighlight {
847 index: usize,
848 range: Range<Anchor>,
849 color: Hsla,
850 should_autoscroll: bool,
851}
852
853#[derive(Clone, Debug)]
854struct AddSelectionsState {
855 above: bool,
856 stack: Vec<usize>,
857}
858
859#[derive(Clone)]
860struct SelectNextState {
861 query: AhoCorasick,
862 wordwise: bool,
863 done: bool,
864}
865
866impl std::fmt::Debug for SelectNextState {
867 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
868 f.debug_struct(std::any::type_name::<Self>())
869 .field("wordwise", &self.wordwise)
870 .field("done", &self.done)
871 .finish()
872 }
873}
874
875#[derive(Debug)]
876struct AutocloseRegion {
877 selection_id: usize,
878 range: Range<Anchor>,
879 pair: BracketPair,
880}
881
882#[derive(Debug)]
883struct SnippetState {
884 ranges: Vec<Vec<Range<Anchor>>>,
885 active_index: usize,
886}
887
888#[doc(hidden)]
889pub struct RenameState {
890 pub range: Range<Anchor>,
891 pub old_name: Arc<str>,
892 pub editor: View<Editor>,
893 block_id: CustomBlockId,
894}
895
896struct InvalidationStack<T>(Vec<T>);
897
898struct RegisteredInlineCompletionProvider {
899 provider: Arc<dyn InlineCompletionProviderHandle>,
900 _subscription: Subscription,
901}
902
903enum ContextMenu {
904 Completions(CompletionsMenu),
905 CodeActions(CodeActionsMenu),
906}
907
908impl ContextMenu {
909 fn select_first(
910 &mut self,
911 provider: Option<&dyn CompletionProvider>,
912 cx: &mut ViewContext<Editor>,
913 ) -> bool {
914 if self.visible() {
915 match self {
916 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
917 ContextMenu::CodeActions(menu) => menu.select_first(cx),
918 }
919 true
920 } else {
921 false
922 }
923 }
924
925 fn select_prev(
926 &mut self,
927 provider: Option<&dyn CompletionProvider>,
928 cx: &mut ViewContext<Editor>,
929 ) -> bool {
930 if self.visible() {
931 match self {
932 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
933 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
934 }
935 true
936 } else {
937 false
938 }
939 }
940
941 fn select_next(
942 &mut self,
943 provider: Option<&dyn CompletionProvider>,
944 cx: &mut ViewContext<Editor>,
945 ) -> bool {
946 if self.visible() {
947 match self {
948 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
949 ContextMenu::CodeActions(menu) => menu.select_next(cx),
950 }
951 true
952 } else {
953 false
954 }
955 }
956
957 fn select_last(
958 &mut self,
959 provider: Option<&dyn CompletionProvider>,
960 cx: &mut ViewContext<Editor>,
961 ) -> bool {
962 if self.visible() {
963 match self {
964 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
965 ContextMenu::CodeActions(menu) => menu.select_last(cx),
966 }
967 true
968 } else {
969 false
970 }
971 }
972
973 fn visible(&self) -> bool {
974 match self {
975 ContextMenu::Completions(menu) => menu.visible(),
976 ContextMenu::CodeActions(menu) => menu.visible(),
977 }
978 }
979
980 fn render(
981 &self,
982 cursor_position: DisplayPoint,
983 style: &EditorStyle,
984 max_height: Pixels,
985 workspace: Option<WeakView<Workspace>>,
986 cx: &mut ViewContext<Editor>,
987 ) -> (ContextMenuOrigin, AnyElement) {
988 match self {
989 ContextMenu::Completions(menu) => (
990 ContextMenuOrigin::EditorPoint(cursor_position),
991 menu.render(style, max_height, workspace, cx),
992 ),
993 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
994 }
995 }
996}
997
998enum ContextMenuOrigin {
999 EditorPoint(DisplayPoint),
1000 GutterIndicator(DisplayRow),
1001}
1002
1003#[derive(Clone)]
1004struct CompletionsMenu {
1005 id: CompletionId,
1006 sort_completions: bool,
1007 initial_position: Anchor,
1008 buffer: Model<Buffer>,
1009 completions: Arc<RwLock<Box<[Completion]>>>,
1010 match_candidates: Arc<[StringMatchCandidate]>,
1011 matches: Arc<[StringMatch]>,
1012 selected_item: usize,
1013 scroll_handle: UniformListScrollHandle,
1014 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
1015}
1016
1017impl CompletionsMenu {
1018 fn select_first(
1019 &mut self,
1020 provider: Option<&dyn CompletionProvider>,
1021 cx: &mut ViewContext<Editor>,
1022 ) {
1023 self.selected_item = 0;
1024 self.scroll_handle
1025 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1026 self.attempt_resolve_selected_completion_documentation(provider, cx);
1027 cx.notify();
1028 }
1029
1030 fn select_prev(
1031 &mut self,
1032 provider: Option<&dyn CompletionProvider>,
1033 cx: &mut ViewContext<Editor>,
1034 ) {
1035 if self.selected_item > 0 {
1036 self.selected_item -= 1;
1037 } else {
1038 self.selected_item = self.matches.len() - 1;
1039 }
1040 self.scroll_handle
1041 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1042 self.attempt_resolve_selected_completion_documentation(provider, cx);
1043 cx.notify();
1044 }
1045
1046 fn select_next(
1047 &mut self,
1048 provider: Option<&dyn CompletionProvider>,
1049 cx: &mut ViewContext<Editor>,
1050 ) {
1051 if self.selected_item + 1 < self.matches.len() {
1052 self.selected_item += 1;
1053 } else {
1054 self.selected_item = 0;
1055 }
1056 self.scroll_handle
1057 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1058 self.attempt_resolve_selected_completion_documentation(provider, cx);
1059 cx.notify();
1060 }
1061
1062 fn select_last(
1063 &mut self,
1064 provider: Option<&dyn CompletionProvider>,
1065 cx: &mut ViewContext<Editor>,
1066 ) {
1067 self.selected_item = self.matches.len() - 1;
1068 self.scroll_handle
1069 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1070 self.attempt_resolve_selected_completion_documentation(provider, cx);
1071 cx.notify();
1072 }
1073
1074 fn pre_resolve_completion_documentation(
1075 buffer: Model<Buffer>,
1076 completions: Arc<RwLock<Box<[Completion]>>>,
1077 matches: Arc<[StringMatch]>,
1078 editor: &Editor,
1079 cx: &mut ViewContext<Editor>,
1080 ) -> Task<()> {
1081 let settings = EditorSettings::get_global(cx);
1082 if !settings.show_completion_documentation {
1083 return Task::ready(());
1084 }
1085
1086 let Some(provider) = editor.completion_provider.as_ref() else {
1087 return Task::ready(());
1088 };
1089
1090 let resolve_task = provider.resolve_completions(
1091 buffer,
1092 matches.iter().map(|m| m.candidate_id).collect(),
1093 completions.clone(),
1094 cx,
1095 );
1096
1097 cx.spawn(move |this, mut cx| async move {
1098 if let Some(true) = resolve_task.await.log_err() {
1099 this.update(&mut cx, |_, cx| cx.notify()).ok();
1100 }
1101 })
1102 }
1103
1104 fn attempt_resolve_selected_completion_documentation(
1105 &mut self,
1106 provider: Option<&dyn CompletionProvider>,
1107 cx: &mut ViewContext<Editor>,
1108 ) {
1109 let settings = EditorSettings::get_global(cx);
1110 if !settings.show_completion_documentation {
1111 return;
1112 }
1113
1114 let completion_index = self.matches[self.selected_item].candidate_id;
1115 let Some(provider) = provider else {
1116 return;
1117 };
1118
1119 let resolve_task = provider.resolve_completions(
1120 self.buffer.clone(),
1121 vec![completion_index],
1122 self.completions.clone(),
1123 cx,
1124 );
1125
1126 let delay_ms =
1127 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1128 let delay = Duration::from_millis(delay_ms);
1129
1130 self.selected_completion_documentation_resolve_debounce
1131 .lock()
1132 .fire_new(delay, cx, |_, cx| {
1133 cx.spawn(move |this, mut cx| async move {
1134 if let Some(true) = resolve_task.await.log_err() {
1135 this.update(&mut cx, |_, cx| cx.notify()).ok();
1136 }
1137 })
1138 });
1139 }
1140
1141 fn visible(&self) -> bool {
1142 !self.matches.is_empty()
1143 }
1144
1145 fn render(
1146 &self,
1147 style: &EditorStyle,
1148 max_height: Pixels,
1149 workspace: Option<WeakView<Workspace>>,
1150 cx: &mut ViewContext<Editor>,
1151 ) -> AnyElement {
1152 let settings = EditorSettings::get_global(cx);
1153 let show_completion_documentation = settings.show_completion_documentation;
1154
1155 let widest_completion_ix = self
1156 .matches
1157 .iter()
1158 .enumerate()
1159 .max_by_key(|(_, mat)| {
1160 let completions = self.completions.read();
1161 let completion = &completions[mat.candidate_id];
1162 let documentation = &completion.documentation;
1163
1164 let mut len = completion.label.text.chars().count();
1165 if let Some(Documentation::SingleLine(text)) = documentation {
1166 if show_completion_documentation {
1167 len += text.chars().count();
1168 }
1169 }
1170
1171 len
1172 })
1173 .map(|(ix, _)| ix);
1174
1175 let completions = self.completions.clone();
1176 let matches = self.matches.clone();
1177 let selected_item = self.selected_item;
1178 let style = style.clone();
1179
1180 let multiline_docs = if show_completion_documentation {
1181 let mat = &self.matches[selected_item];
1182 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1183 Some(Documentation::MultiLinePlainText(text)) => {
1184 Some(div().child(SharedString::from(text.clone())))
1185 }
1186 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1187 Some(div().child(render_parsed_markdown(
1188 "completions_markdown",
1189 parsed,
1190 &style,
1191 workspace,
1192 cx,
1193 )))
1194 }
1195 _ => None,
1196 };
1197 multiline_docs.map(|div| {
1198 div.id("multiline_docs")
1199 .max_h(max_height)
1200 .flex_1()
1201 .px_1p5()
1202 .py_1()
1203 .min_w(px(260.))
1204 .max_w(px(640.))
1205 .w(px(500.))
1206 .overflow_y_scroll()
1207 .occlude()
1208 })
1209 } else {
1210 None
1211 };
1212
1213 let list = uniform_list(
1214 cx.view().clone(),
1215 "completions",
1216 matches.len(),
1217 move |_editor, range, cx| {
1218 let start_ix = range.start;
1219 let completions_guard = completions.read();
1220
1221 matches[range]
1222 .iter()
1223 .enumerate()
1224 .map(|(ix, mat)| {
1225 let item_ix = start_ix + ix;
1226 let candidate_id = mat.candidate_id;
1227 let completion = &completions_guard[candidate_id];
1228
1229 let documentation = if show_completion_documentation {
1230 &completion.documentation
1231 } else {
1232 &None
1233 };
1234
1235 let highlights = gpui::combine_highlights(
1236 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1237 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1238 |(range, mut highlight)| {
1239 // Ignore font weight for syntax highlighting, as we'll use it
1240 // for fuzzy matches.
1241 highlight.font_weight = None;
1242
1243 if completion.lsp_completion.deprecated.unwrap_or(false) {
1244 highlight.strikethrough = Some(StrikethroughStyle {
1245 thickness: 1.0.into(),
1246 ..Default::default()
1247 });
1248 highlight.color = Some(cx.theme().colors().text_muted);
1249 }
1250
1251 (range, highlight)
1252 },
1253 ),
1254 );
1255 let completion_label = StyledText::new(completion.label.text.clone())
1256 .with_highlights(&style.text, highlights);
1257 let documentation_label =
1258 if let Some(Documentation::SingleLine(text)) = documentation {
1259 if text.trim().is_empty() {
1260 None
1261 } else {
1262 Some(
1263 Label::new(text.clone())
1264 .ml_4()
1265 .size(LabelSize::Small)
1266 .color(Color::Muted),
1267 )
1268 }
1269 } else {
1270 None
1271 };
1272
1273 let color_swatch = completion
1274 .color()
1275 .map(|color| div().size_4().bg(color).rounded_sm());
1276
1277 div().min_w(px(220.)).max_w(px(540.)).child(
1278 ListItem::new(mat.candidate_id)
1279 .inset(true)
1280 .selected(item_ix == selected_item)
1281 .on_click(cx.listener(move |editor, _event, cx| {
1282 cx.stop_propagation();
1283 if let Some(task) = editor.confirm_completion(
1284 &ConfirmCompletion {
1285 item_ix: Some(item_ix),
1286 },
1287 cx,
1288 ) {
1289 task.detach_and_log_err(cx)
1290 }
1291 }))
1292 .start_slot::<Div>(color_swatch)
1293 .child(h_flex().overflow_hidden().child(completion_label))
1294 .end_slot::<Label>(documentation_label),
1295 )
1296 })
1297 .collect()
1298 },
1299 )
1300 .occlude()
1301 .max_h(max_height)
1302 .track_scroll(self.scroll_handle.clone())
1303 .with_width_from_item(widest_completion_ix)
1304 .with_sizing_behavior(ListSizingBehavior::Infer);
1305
1306 Popover::new()
1307 .child(list)
1308 .when_some(multiline_docs, |popover, multiline_docs| {
1309 popover.aside(multiline_docs)
1310 })
1311 .into_any_element()
1312 }
1313
1314 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1315 let mut matches = if let Some(query) = query {
1316 fuzzy::match_strings(
1317 &self.match_candidates,
1318 query,
1319 query.chars().any(|c| c.is_uppercase()),
1320 100,
1321 &Default::default(),
1322 executor,
1323 )
1324 .await
1325 } else {
1326 self.match_candidates
1327 .iter()
1328 .enumerate()
1329 .map(|(candidate_id, candidate)| StringMatch {
1330 candidate_id,
1331 score: Default::default(),
1332 positions: Default::default(),
1333 string: candidate.string.clone(),
1334 })
1335 .collect()
1336 };
1337
1338 // Remove all candidates where the query's start does not match the start of any word in the candidate
1339 if let Some(query) = query {
1340 if let Some(query_start) = query.chars().next() {
1341 matches.retain(|string_match| {
1342 split_words(&string_match.string).any(|word| {
1343 // Check that the first codepoint of the word as lowercase matches the first
1344 // codepoint of the query as lowercase
1345 word.chars()
1346 .flat_map(|codepoint| codepoint.to_lowercase())
1347 .zip(query_start.to_lowercase())
1348 .all(|(word_cp, query_cp)| word_cp == query_cp)
1349 })
1350 });
1351 }
1352 }
1353
1354 let completions = self.completions.read();
1355 if self.sort_completions {
1356 matches.sort_unstable_by_key(|mat| {
1357 // We do want to strike a balance here between what the language server tells us
1358 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1359 // `Creat` and there is a local variable called `CreateComponent`).
1360 // So what we do is: we bucket all matches into two buckets
1361 // - Strong matches
1362 // - Weak matches
1363 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1364 // and the Weak matches are the rest.
1365 //
1366 // For the strong matches, we sort by our fuzzy-finder score first and for the weak
1367 // matches, we prefer language-server sort_text first.
1368 //
1369 // The thinking behind that: we want to show strong matches first in order of relevance(fuzzy score).
1370 // Rest of the matches(weak) can be sorted as language-server expects.
1371
1372 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1373 enum MatchScore<'a> {
1374 Strong {
1375 score: Reverse<OrderedFloat<f64>>,
1376 sort_text: Option<&'a str>,
1377 sort_key: (usize, &'a str),
1378 },
1379 Weak {
1380 sort_text: Option<&'a str>,
1381 score: Reverse<OrderedFloat<f64>>,
1382 sort_key: (usize, &'a str),
1383 },
1384 }
1385
1386 let completion = &completions[mat.candidate_id];
1387 let sort_key = completion.sort_key();
1388 let sort_text = completion.lsp_completion.sort_text.as_deref();
1389 let score = Reverse(OrderedFloat(mat.score));
1390
1391 if mat.score >= 0.2 {
1392 MatchScore::Strong {
1393 score,
1394 sort_text,
1395 sort_key,
1396 }
1397 } else {
1398 MatchScore::Weak {
1399 sort_text,
1400 score,
1401 sort_key,
1402 }
1403 }
1404 });
1405 }
1406
1407 for mat in &mut matches {
1408 let completion = &completions[mat.candidate_id];
1409 mat.string.clone_from(&completion.label.text);
1410 for position in &mut mat.positions {
1411 *position += completion.label.filter_range.start;
1412 }
1413 }
1414 drop(completions);
1415
1416 self.matches = matches.into();
1417 self.selected_item = 0;
1418 }
1419}
1420
1421struct AvailableCodeAction {
1422 excerpt_id: ExcerptId,
1423 action: CodeAction,
1424 provider: Arc<dyn CodeActionProvider>,
1425}
1426
1427#[derive(Clone)]
1428struct CodeActionContents {
1429 tasks: Option<Arc<ResolvedTasks>>,
1430 actions: Option<Arc<[AvailableCodeAction]>>,
1431}
1432
1433impl CodeActionContents {
1434 fn len(&self) -> usize {
1435 match (&self.tasks, &self.actions) {
1436 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1437 (Some(tasks), None) => tasks.templates.len(),
1438 (None, Some(actions)) => actions.len(),
1439 (None, None) => 0,
1440 }
1441 }
1442
1443 fn is_empty(&self) -> bool {
1444 match (&self.tasks, &self.actions) {
1445 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1446 (Some(tasks), None) => tasks.templates.is_empty(),
1447 (None, Some(actions)) => actions.is_empty(),
1448 (None, None) => true,
1449 }
1450 }
1451
1452 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1453 self.tasks
1454 .iter()
1455 .flat_map(|tasks| {
1456 tasks
1457 .templates
1458 .iter()
1459 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1460 })
1461 .chain(self.actions.iter().flat_map(|actions| {
1462 actions.iter().map(|available| CodeActionsItem::CodeAction {
1463 excerpt_id: available.excerpt_id,
1464 action: available.action.clone(),
1465 provider: available.provider.clone(),
1466 })
1467 }))
1468 }
1469 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1470 match (&self.tasks, &self.actions) {
1471 (Some(tasks), Some(actions)) => {
1472 if index < tasks.templates.len() {
1473 tasks
1474 .templates
1475 .get(index)
1476 .cloned()
1477 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1478 } else {
1479 actions.get(index - tasks.templates.len()).map(|available| {
1480 CodeActionsItem::CodeAction {
1481 excerpt_id: available.excerpt_id,
1482 action: available.action.clone(),
1483 provider: available.provider.clone(),
1484 }
1485 })
1486 }
1487 }
1488 (Some(tasks), None) => tasks
1489 .templates
1490 .get(index)
1491 .cloned()
1492 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1493 (None, Some(actions)) => {
1494 actions
1495 .get(index)
1496 .map(|available| CodeActionsItem::CodeAction {
1497 excerpt_id: available.excerpt_id,
1498 action: available.action.clone(),
1499 provider: available.provider.clone(),
1500 })
1501 }
1502 (None, None) => None,
1503 }
1504 }
1505}
1506
1507#[allow(clippy::large_enum_variant)]
1508#[derive(Clone)]
1509enum CodeActionsItem {
1510 Task(TaskSourceKind, ResolvedTask),
1511 CodeAction {
1512 excerpt_id: ExcerptId,
1513 action: CodeAction,
1514 provider: Arc<dyn CodeActionProvider>,
1515 },
1516}
1517
1518impl CodeActionsItem {
1519 fn as_task(&self) -> Option<&ResolvedTask> {
1520 let Self::Task(_, task) = self else {
1521 return None;
1522 };
1523 Some(task)
1524 }
1525 fn as_code_action(&self) -> Option<&CodeAction> {
1526 let Self::CodeAction { action, .. } = self else {
1527 return None;
1528 };
1529 Some(action)
1530 }
1531 fn label(&self) -> String {
1532 match self {
1533 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1534 Self::Task(_, task) => task.resolved_label.clone(),
1535 }
1536 }
1537}
1538
1539struct CodeActionsMenu {
1540 actions: CodeActionContents,
1541 buffer: Model<Buffer>,
1542 selected_item: usize,
1543 scroll_handle: UniformListScrollHandle,
1544 deployed_from_indicator: Option<DisplayRow>,
1545}
1546
1547impl CodeActionsMenu {
1548 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1549 self.selected_item = 0;
1550 self.scroll_handle
1551 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1552 cx.notify()
1553 }
1554
1555 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1556 if self.selected_item > 0 {
1557 self.selected_item -= 1;
1558 } else {
1559 self.selected_item = self.actions.len() - 1;
1560 }
1561 self.scroll_handle
1562 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1563 cx.notify();
1564 }
1565
1566 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1567 if self.selected_item + 1 < self.actions.len() {
1568 self.selected_item += 1;
1569 } else {
1570 self.selected_item = 0;
1571 }
1572 self.scroll_handle
1573 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1574 cx.notify();
1575 }
1576
1577 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1578 self.selected_item = self.actions.len() - 1;
1579 self.scroll_handle
1580 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1581 cx.notify()
1582 }
1583
1584 fn visible(&self) -> bool {
1585 !self.actions.is_empty()
1586 }
1587
1588 fn render(
1589 &self,
1590 cursor_position: DisplayPoint,
1591 _style: &EditorStyle,
1592 max_height: Pixels,
1593 cx: &mut ViewContext<Editor>,
1594 ) -> (ContextMenuOrigin, AnyElement) {
1595 let actions = self.actions.clone();
1596 let selected_item = self.selected_item;
1597 let element = uniform_list(
1598 cx.view().clone(),
1599 "code_actions_menu",
1600 self.actions.len(),
1601 move |_this, range, cx| {
1602 actions
1603 .iter()
1604 .skip(range.start)
1605 .take(range.end - range.start)
1606 .enumerate()
1607 .map(|(ix, action)| {
1608 let item_ix = range.start + ix;
1609 let selected = selected_item == item_ix;
1610 let colors = cx.theme().colors();
1611 div()
1612 .px_1()
1613 .rounded_md()
1614 .text_color(colors.text)
1615 .when(selected, |style| {
1616 style
1617 .bg(colors.element_active)
1618 .text_color(colors.text_accent)
1619 })
1620 .hover(|style| {
1621 style
1622 .bg(colors.element_hover)
1623 .text_color(colors.text_accent)
1624 })
1625 .whitespace_nowrap()
1626 .when_some(action.as_code_action(), |this, action| {
1627 this.on_mouse_down(
1628 MouseButton::Left,
1629 cx.listener(move |editor, _, cx| {
1630 cx.stop_propagation();
1631 if let Some(task) = editor.confirm_code_action(
1632 &ConfirmCodeAction {
1633 item_ix: Some(item_ix),
1634 },
1635 cx,
1636 ) {
1637 task.detach_and_log_err(cx)
1638 }
1639 }),
1640 )
1641 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1642 .child(SharedString::from(action.lsp_action.title.clone()))
1643 })
1644 .when_some(action.as_task(), |this, task| {
1645 this.on_mouse_down(
1646 MouseButton::Left,
1647 cx.listener(move |editor, _, cx| {
1648 cx.stop_propagation();
1649 if let Some(task) = editor.confirm_code_action(
1650 &ConfirmCodeAction {
1651 item_ix: Some(item_ix),
1652 },
1653 cx,
1654 ) {
1655 task.detach_and_log_err(cx)
1656 }
1657 }),
1658 )
1659 .child(SharedString::from(task.resolved_label.clone()))
1660 })
1661 })
1662 .collect()
1663 },
1664 )
1665 .elevation_1(cx)
1666 .p_1()
1667 .max_h(max_height)
1668 .occlude()
1669 .track_scroll(self.scroll_handle.clone())
1670 .with_width_from_item(
1671 self.actions
1672 .iter()
1673 .enumerate()
1674 .max_by_key(|(_, action)| match action {
1675 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1676 CodeActionsItem::CodeAction { action, .. } => {
1677 action.lsp_action.title.chars().count()
1678 }
1679 })
1680 .map(|(ix, _)| ix),
1681 )
1682 .with_sizing_behavior(ListSizingBehavior::Infer)
1683 .into_any_element();
1684
1685 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1686 ContextMenuOrigin::GutterIndicator(row)
1687 } else {
1688 ContextMenuOrigin::EditorPoint(cursor_position)
1689 };
1690
1691 (cursor_position, element)
1692 }
1693}
1694
1695#[derive(Debug)]
1696struct ActiveDiagnosticGroup {
1697 primary_range: Range<Anchor>,
1698 primary_message: String,
1699 group_id: usize,
1700 blocks: HashMap<CustomBlockId, Diagnostic>,
1701 is_valid: bool,
1702}
1703
1704#[derive(Serialize, Deserialize, Clone, Debug)]
1705pub struct ClipboardSelection {
1706 pub len: usize,
1707 pub is_entire_line: bool,
1708 pub first_line_indent: u32,
1709}
1710
1711#[derive(Debug)]
1712pub(crate) struct NavigationData {
1713 cursor_anchor: Anchor,
1714 cursor_position: Point,
1715 scroll_anchor: ScrollAnchor,
1716 scroll_top_row: u32,
1717}
1718
1719#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1720pub enum GotoDefinitionKind {
1721 Symbol,
1722 Declaration,
1723 Type,
1724 Implementation,
1725}
1726
1727#[derive(Debug, Clone)]
1728enum InlayHintRefreshReason {
1729 Toggle(bool),
1730 SettingsChange(InlayHintSettings),
1731 NewLinesShown,
1732 BufferEdited(HashSet<Arc<Language>>),
1733 RefreshRequested,
1734 ExcerptsRemoved(Vec<ExcerptId>),
1735}
1736
1737impl InlayHintRefreshReason {
1738 fn description(&self) -> &'static str {
1739 match self {
1740 Self::Toggle(_) => "toggle",
1741 Self::SettingsChange(_) => "settings change",
1742 Self::NewLinesShown => "new lines shown",
1743 Self::BufferEdited(_) => "buffer edited",
1744 Self::RefreshRequested => "refresh requested",
1745 Self::ExcerptsRemoved(_) => "excerpts removed",
1746 }
1747 }
1748}
1749
1750pub(crate) struct FocusedBlock {
1751 id: BlockId,
1752 focus_handle: WeakFocusHandle,
1753}
1754
1755#[derive(Clone)]
1756struct JumpData {
1757 excerpt_id: ExcerptId,
1758 position: Point,
1759 anchor: text::Anchor,
1760 path: Option<project::ProjectPath>,
1761 line_offset_from_top: u32,
1762}
1763
1764impl Editor {
1765 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1766 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1767 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1768 Self::new(
1769 EditorMode::SingleLine { auto_width: false },
1770 buffer,
1771 None,
1772 false,
1773 cx,
1774 )
1775 }
1776
1777 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1778 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1779 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1780 Self::new(EditorMode::Full, buffer, None, false, cx)
1781 }
1782
1783 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1784 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1785 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1786 Self::new(
1787 EditorMode::SingleLine { auto_width: true },
1788 buffer,
1789 None,
1790 false,
1791 cx,
1792 )
1793 }
1794
1795 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1796 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1797 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1798 Self::new(
1799 EditorMode::AutoHeight { max_lines },
1800 buffer,
1801 None,
1802 false,
1803 cx,
1804 )
1805 }
1806
1807 pub fn for_buffer(
1808 buffer: Model<Buffer>,
1809 project: Option<Model<Project>>,
1810 cx: &mut ViewContext<Self>,
1811 ) -> Self {
1812 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1813 Self::new(EditorMode::Full, buffer, project, false, cx)
1814 }
1815
1816 pub fn for_multibuffer(
1817 buffer: Model<MultiBuffer>,
1818 project: Option<Model<Project>>,
1819 show_excerpt_controls: bool,
1820 cx: &mut ViewContext<Self>,
1821 ) -> Self {
1822 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1823 }
1824
1825 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1826 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1827 let mut clone = Self::new(
1828 self.mode,
1829 self.buffer.clone(),
1830 self.project.clone(),
1831 show_excerpt_controls,
1832 cx,
1833 );
1834 self.display_map.update(cx, |display_map, cx| {
1835 let snapshot = display_map.snapshot(cx);
1836 clone.display_map.update(cx, |display_map, cx| {
1837 display_map.set_state(&snapshot, cx);
1838 });
1839 });
1840 clone.selections.clone_state(&self.selections);
1841 clone.scroll_manager.clone_state(&self.scroll_manager);
1842 clone.searchable = self.searchable;
1843 clone
1844 }
1845
1846 pub fn new(
1847 mode: EditorMode,
1848 buffer: Model<MultiBuffer>,
1849 project: Option<Model<Project>>,
1850 show_excerpt_controls: bool,
1851 cx: &mut ViewContext<Self>,
1852 ) -> Self {
1853 let style = cx.text_style();
1854 let font_size = style.font_size.to_pixels(cx.rem_size());
1855 let editor = cx.view().downgrade();
1856 let fold_placeholder = FoldPlaceholder {
1857 constrain_width: true,
1858 render: Arc::new(move |fold_id, fold_range, cx| {
1859 let editor = editor.clone();
1860 div()
1861 .id(fold_id)
1862 .bg(cx.theme().colors().ghost_element_background)
1863 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1864 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1865 .rounded_sm()
1866 .size_full()
1867 .cursor_pointer()
1868 .child("⋯")
1869 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1870 .on_click(move |_, cx| {
1871 editor
1872 .update(cx, |editor, cx| {
1873 editor.unfold_ranges(
1874 &[fold_range.start..fold_range.end],
1875 true,
1876 false,
1877 cx,
1878 );
1879 cx.stop_propagation();
1880 })
1881 .ok();
1882 })
1883 .into_any()
1884 }),
1885 merge_adjacent: true,
1886 ..Default::default()
1887 };
1888 let display_map = cx.new_model(|cx| {
1889 DisplayMap::new(
1890 buffer.clone(),
1891 style.font(),
1892 font_size,
1893 None,
1894 show_excerpt_controls,
1895 FILE_HEADER_HEIGHT,
1896 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1897 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1898 fold_placeholder,
1899 cx,
1900 )
1901 });
1902
1903 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1904
1905 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1906
1907 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1908 .then(|| language_settings::SoftWrap::None);
1909
1910 let mut project_subscriptions = Vec::new();
1911 if mode == EditorMode::Full {
1912 if let Some(project) = project.as_ref() {
1913 if buffer.read(cx).is_singleton() {
1914 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1915 cx.emit(EditorEvent::TitleChanged);
1916 }));
1917 }
1918 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1919 if let project::Event::RefreshInlayHints = event {
1920 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1921 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1922 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1923 let focus_handle = editor.focus_handle(cx);
1924 if focus_handle.is_focused(cx) {
1925 let snapshot = buffer.read(cx).snapshot();
1926 for (range, snippet) in snippet_edits {
1927 let editor_range =
1928 language::range_from_lsp(*range).to_offset(&snapshot);
1929 editor
1930 .insert_snippet(&[editor_range], snippet.clone(), cx)
1931 .ok();
1932 }
1933 }
1934 }
1935 }
1936 }));
1937 if let Some(task_inventory) = project
1938 .read(cx)
1939 .task_store()
1940 .read(cx)
1941 .task_inventory()
1942 .cloned()
1943 {
1944 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1945 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1946 }));
1947 }
1948 }
1949 }
1950
1951 let inlay_hint_settings = inlay_hint_settings(
1952 selections.newest_anchor().head(),
1953 &buffer.read(cx).snapshot(cx),
1954 cx,
1955 );
1956 let focus_handle = cx.focus_handle();
1957 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1958 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1959 .detach();
1960 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1961 .detach();
1962 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1963
1964 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1965 Some(false)
1966 } else {
1967 None
1968 };
1969
1970 let mut code_action_providers = Vec::new();
1971 if let Some(project) = project.clone() {
1972 code_action_providers.push(Arc::new(project) as Arc<_>);
1973 }
1974
1975 let mut this = Self {
1976 focus_handle,
1977 show_cursor_when_unfocused: false,
1978 last_focused_descendant: None,
1979 buffer: buffer.clone(),
1980 display_map: display_map.clone(),
1981 selections,
1982 scroll_manager: ScrollManager::new(cx),
1983 columnar_selection_tail: None,
1984 add_selections_state: None,
1985 select_next_state: None,
1986 select_prev_state: None,
1987 selection_history: Default::default(),
1988 autoclose_regions: Default::default(),
1989 snippet_stack: Default::default(),
1990 select_larger_syntax_node_stack: Vec::new(),
1991 ime_transaction: Default::default(),
1992 active_diagnostics: None,
1993 soft_wrap_mode_override,
1994 completion_provider: project.clone().map(|project| Box::new(project) as _),
1995 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1996 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1997 project,
1998 blink_manager: blink_manager.clone(),
1999 show_local_selections: true,
2000 mode,
2001 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
2002 show_gutter: mode == EditorMode::Full,
2003 show_line_numbers: None,
2004 use_relative_line_numbers: None,
2005 show_git_diff_gutter: None,
2006 show_code_actions: None,
2007 show_runnables: None,
2008 show_wrap_guides: None,
2009 show_indent_guides,
2010 placeholder_text: None,
2011 highlight_order: 0,
2012 highlighted_rows: HashMap::default(),
2013 background_highlights: Default::default(),
2014 gutter_highlights: TreeMap::default(),
2015 scrollbar_marker_state: ScrollbarMarkerState::default(),
2016 active_indent_guides_state: ActiveIndentGuidesState::default(),
2017 nav_history: None,
2018 context_menu: RwLock::new(None),
2019 mouse_context_menu: None,
2020 hunk_controls_menu_handle: PopoverMenuHandle::default(),
2021 completion_tasks: Default::default(),
2022 signature_help_state: SignatureHelpState::default(),
2023 auto_signature_help: None,
2024 find_all_references_task_sources: Vec::new(),
2025 next_completion_id: 0,
2026 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
2027 next_inlay_id: 0,
2028 code_action_providers,
2029 available_code_actions: Default::default(),
2030 code_actions_task: Default::default(),
2031 document_highlights_task: Default::default(),
2032 linked_editing_range_task: Default::default(),
2033 pending_rename: Default::default(),
2034 searchable: true,
2035 cursor_shape: EditorSettings::get_global(cx)
2036 .cursor_shape
2037 .unwrap_or_default(),
2038 current_line_highlight: None,
2039 autoindent_mode: Some(AutoindentMode::EachLine),
2040 collapse_matches: false,
2041 workspace: None,
2042 input_enabled: true,
2043 use_modal_editing: mode == EditorMode::Full,
2044 read_only: false,
2045 use_autoclose: true,
2046 use_auto_surround: true,
2047 auto_replace_emoji_shortcode: false,
2048 leader_peer_id: None,
2049 remote_id: None,
2050 hover_state: Default::default(),
2051 hovered_link_state: Default::default(),
2052 inline_completion_provider: None,
2053 active_inline_completion: None,
2054 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2055 expanded_hunks: ExpandedHunks::default(),
2056 gutter_hovered: false,
2057 pixel_position_of_newest_cursor: None,
2058 last_bounds: None,
2059 expect_bounds_change: None,
2060 gutter_dimensions: GutterDimensions::default(),
2061 style: None,
2062 show_cursor_names: false,
2063 hovered_cursors: Default::default(),
2064 next_editor_action_id: EditorActionId::default(),
2065 editor_actions: Rc::default(),
2066 show_inline_completions_override: None,
2067 enable_inline_completions: true,
2068 custom_context_menu: None,
2069 show_git_blame_gutter: false,
2070 show_git_blame_inline: false,
2071 show_selection_menu: None,
2072 show_git_blame_inline_delay_task: None,
2073 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2074 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2075 .session
2076 .restore_unsaved_buffers,
2077 blame: None,
2078 blame_subscription: None,
2079 tasks: Default::default(),
2080 _subscriptions: vec![
2081 cx.observe(&buffer, Self::on_buffer_changed),
2082 cx.subscribe(&buffer, Self::on_buffer_event),
2083 cx.observe(&display_map, Self::on_display_map_changed),
2084 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2085 cx.observe_global::<SettingsStore>(Self::settings_changed),
2086 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2087 cx.observe_window_activation(|editor, cx| {
2088 let active = cx.is_window_active();
2089 editor.blink_manager.update(cx, |blink_manager, cx| {
2090 if active {
2091 blink_manager.enable(cx);
2092 } else {
2093 blink_manager.disable(cx);
2094 }
2095 });
2096 }),
2097 ],
2098 tasks_update_task: None,
2099 linked_edit_ranges: Default::default(),
2100 previous_search_ranges: None,
2101 breadcrumb_header: None,
2102 focused_block: None,
2103 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2104 addons: HashMap::default(),
2105 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2106 text_style_refinement: None,
2107 };
2108 this.tasks_update_task = Some(this.refresh_runnables(cx));
2109 this._subscriptions.extend(project_subscriptions);
2110
2111 this.end_selection(cx);
2112 this.scroll_manager.show_scrollbar(cx);
2113
2114 if mode == EditorMode::Full {
2115 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2116 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2117
2118 if this.git_blame_inline_enabled {
2119 this.git_blame_inline_enabled = true;
2120 this.start_git_blame_inline(false, cx);
2121 }
2122 }
2123
2124 this.report_editor_event("open", None, cx);
2125 this
2126 }
2127
2128 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2129 self.mouse_context_menu
2130 .as_ref()
2131 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2132 }
2133
2134 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2135 let mut key_context = KeyContext::new_with_defaults();
2136 key_context.add("Editor");
2137 let mode = match self.mode {
2138 EditorMode::SingleLine { .. } => "single_line",
2139 EditorMode::AutoHeight { .. } => "auto_height",
2140 EditorMode::Full => "full",
2141 };
2142
2143 if EditorSettings::jupyter_enabled(cx) {
2144 key_context.add("jupyter");
2145 }
2146
2147 key_context.set("mode", mode);
2148 if self.pending_rename.is_some() {
2149 key_context.add("renaming");
2150 }
2151 if self.context_menu_visible() {
2152 match self.context_menu.read().as_ref() {
2153 Some(ContextMenu::Completions(_)) => {
2154 key_context.add("menu");
2155 key_context.add("showing_completions")
2156 }
2157 Some(ContextMenu::CodeActions(_)) => {
2158 key_context.add("menu");
2159 key_context.add("showing_code_actions")
2160 }
2161 None => {}
2162 }
2163 }
2164
2165 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2166 if !self.focus_handle(cx).contains_focused(cx)
2167 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2168 {
2169 for addon in self.addons.values() {
2170 addon.extend_key_context(&mut key_context, cx)
2171 }
2172 }
2173
2174 if let Some(extension) = self
2175 .buffer
2176 .read(cx)
2177 .as_singleton()
2178 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2179 {
2180 key_context.set("extension", extension.to_string());
2181 }
2182
2183 if self.has_active_inline_completion(cx) {
2184 key_context.add("copilot_suggestion");
2185 key_context.add("inline_completion");
2186 }
2187
2188 key_context
2189 }
2190
2191 pub fn new_file(
2192 workspace: &mut Workspace,
2193 _: &workspace::NewFile,
2194 cx: &mut ViewContext<Workspace>,
2195 ) {
2196 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2197 "Failed to create buffer",
2198 cx,
2199 |e, _| match e.error_code() {
2200 ErrorCode::RemoteUpgradeRequired => Some(format!(
2201 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2202 e.error_tag("required").unwrap_or("the latest version")
2203 )),
2204 _ => None,
2205 },
2206 );
2207 }
2208
2209 pub fn new_in_workspace(
2210 workspace: &mut Workspace,
2211 cx: &mut ViewContext<Workspace>,
2212 ) -> Task<Result<View<Editor>>> {
2213 let project = workspace.project().clone();
2214 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2215
2216 cx.spawn(|workspace, mut cx| async move {
2217 let buffer = create.await?;
2218 workspace.update(&mut cx, |workspace, cx| {
2219 let editor =
2220 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2221 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2222 editor
2223 })
2224 })
2225 }
2226
2227 fn new_file_vertical(
2228 workspace: &mut Workspace,
2229 _: &workspace::NewFileSplitVertical,
2230 cx: &mut ViewContext<Workspace>,
2231 ) {
2232 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2233 }
2234
2235 fn new_file_horizontal(
2236 workspace: &mut Workspace,
2237 _: &workspace::NewFileSplitHorizontal,
2238 cx: &mut ViewContext<Workspace>,
2239 ) {
2240 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2241 }
2242
2243 fn new_file_in_direction(
2244 workspace: &mut Workspace,
2245 direction: SplitDirection,
2246 cx: &mut ViewContext<Workspace>,
2247 ) {
2248 let project = workspace.project().clone();
2249 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2250
2251 cx.spawn(|workspace, mut cx| async move {
2252 let buffer = create.await?;
2253 workspace.update(&mut cx, move |workspace, cx| {
2254 workspace.split_item(
2255 direction,
2256 Box::new(
2257 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2258 ),
2259 cx,
2260 )
2261 })?;
2262 anyhow::Ok(())
2263 })
2264 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2265 ErrorCode::RemoteUpgradeRequired => Some(format!(
2266 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2267 e.error_tag("required").unwrap_or("the latest version")
2268 )),
2269 _ => None,
2270 });
2271 }
2272
2273 pub fn leader_peer_id(&self) -> Option<PeerId> {
2274 self.leader_peer_id
2275 }
2276
2277 pub fn buffer(&self) -> &Model<MultiBuffer> {
2278 &self.buffer
2279 }
2280
2281 pub fn workspace(&self) -> Option<View<Workspace>> {
2282 self.workspace.as_ref()?.0.upgrade()
2283 }
2284
2285 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2286 self.buffer().read(cx).title(cx)
2287 }
2288
2289 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2290 let git_blame_gutter_max_author_length = self
2291 .render_git_blame_gutter(cx)
2292 .then(|| {
2293 if let Some(blame) = self.blame.as_ref() {
2294 let max_author_length =
2295 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2296 Some(max_author_length)
2297 } else {
2298 None
2299 }
2300 })
2301 .flatten();
2302
2303 EditorSnapshot {
2304 mode: self.mode,
2305 show_gutter: self.show_gutter,
2306 show_line_numbers: self.show_line_numbers,
2307 show_git_diff_gutter: self.show_git_diff_gutter,
2308 show_code_actions: self.show_code_actions,
2309 show_runnables: self.show_runnables,
2310 git_blame_gutter_max_author_length,
2311 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2312 scroll_anchor: self.scroll_manager.anchor(),
2313 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2314 placeholder_text: self.placeholder_text.clone(),
2315 is_focused: self.focus_handle.is_focused(cx),
2316 current_line_highlight: self
2317 .current_line_highlight
2318 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2319 gutter_hovered: self.gutter_hovered,
2320 }
2321 }
2322
2323 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2324 self.buffer.read(cx).language_at(point, cx)
2325 }
2326
2327 pub fn file_at<T: ToOffset>(
2328 &self,
2329 point: T,
2330 cx: &AppContext,
2331 ) -> Option<Arc<dyn language::File>> {
2332 self.buffer.read(cx).read(cx).file_at(point).cloned()
2333 }
2334
2335 pub fn active_excerpt(
2336 &self,
2337 cx: &AppContext,
2338 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2339 self.buffer
2340 .read(cx)
2341 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2342 }
2343
2344 pub fn mode(&self) -> EditorMode {
2345 self.mode
2346 }
2347
2348 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2349 self.collaboration_hub.as_deref()
2350 }
2351
2352 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2353 self.collaboration_hub = Some(hub);
2354 }
2355
2356 pub fn set_custom_context_menu(
2357 &mut self,
2358 f: impl 'static
2359 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2360 ) {
2361 self.custom_context_menu = Some(Box::new(f))
2362 }
2363
2364 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2365 self.completion_provider = provider;
2366 }
2367
2368 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2369 self.semantics_provider.clone()
2370 }
2371
2372 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2373 self.semantics_provider = provider;
2374 }
2375
2376 pub fn set_inline_completion_provider<T>(
2377 &mut self,
2378 provider: Option<Model<T>>,
2379 cx: &mut ViewContext<Self>,
2380 ) where
2381 T: InlineCompletionProvider,
2382 {
2383 self.inline_completion_provider =
2384 provider.map(|provider| RegisteredInlineCompletionProvider {
2385 _subscription: cx.observe(&provider, |this, _, cx| {
2386 if this.focus_handle.is_focused(cx) {
2387 this.update_visible_inline_completion(cx);
2388 }
2389 }),
2390 provider: Arc::new(provider),
2391 });
2392 self.refresh_inline_completion(false, false, cx);
2393 }
2394
2395 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2396 self.placeholder_text.as_deref()
2397 }
2398
2399 pub fn set_placeholder_text(
2400 &mut self,
2401 placeholder_text: impl Into<Arc<str>>,
2402 cx: &mut ViewContext<Self>,
2403 ) {
2404 let placeholder_text = Some(placeholder_text.into());
2405 if self.placeholder_text != placeholder_text {
2406 self.placeholder_text = placeholder_text;
2407 cx.notify();
2408 }
2409 }
2410
2411 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2412 self.cursor_shape = cursor_shape;
2413
2414 // Disrupt blink for immediate user feedback that the cursor shape has changed
2415 self.blink_manager.update(cx, BlinkManager::show_cursor);
2416
2417 cx.notify();
2418 }
2419
2420 pub fn set_current_line_highlight(
2421 &mut self,
2422 current_line_highlight: Option<CurrentLineHighlight>,
2423 ) {
2424 self.current_line_highlight = current_line_highlight;
2425 }
2426
2427 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2428 self.collapse_matches = collapse_matches;
2429 }
2430
2431 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2432 if self.collapse_matches {
2433 return range.start..range.start;
2434 }
2435 range.clone()
2436 }
2437
2438 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2439 if self.display_map.read(cx).clip_at_line_ends != clip {
2440 self.display_map
2441 .update(cx, |map, _| map.clip_at_line_ends = clip);
2442 }
2443 }
2444
2445 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2446 self.input_enabled = input_enabled;
2447 }
2448
2449 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2450 self.enable_inline_completions = enabled;
2451 }
2452
2453 pub fn set_autoindent(&mut self, autoindent: bool) {
2454 if autoindent {
2455 self.autoindent_mode = Some(AutoindentMode::EachLine);
2456 } else {
2457 self.autoindent_mode = None;
2458 }
2459 }
2460
2461 pub fn read_only(&self, cx: &AppContext) -> bool {
2462 self.read_only || self.buffer.read(cx).read_only()
2463 }
2464
2465 pub fn set_read_only(&mut self, read_only: bool) {
2466 self.read_only = read_only;
2467 }
2468
2469 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2470 self.use_autoclose = autoclose;
2471 }
2472
2473 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2474 self.use_auto_surround = auto_surround;
2475 }
2476
2477 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2478 self.auto_replace_emoji_shortcode = auto_replace;
2479 }
2480
2481 pub fn toggle_inline_completions(
2482 &mut self,
2483 _: &ToggleInlineCompletions,
2484 cx: &mut ViewContext<Self>,
2485 ) {
2486 if self.show_inline_completions_override.is_some() {
2487 self.set_show_inline_completions(None, cx);
2488 } else {
2489 let cursor = self.selections.newest_anchor().head();
2490 if let Some((buffer, cursor_buffer_position)) =
2491 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2492 {
2493 let show_inline_completions =
2494 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2495 self.set_show_inline_completions(Some(show_inline_completions), cx);
2496 }
2497 }
2498 }
2499
2500 pub fn set_show_inline_completions(
2501 &mut self,
2502 show_inline_completions: Option<bool>,
2503 cx: &mut ViewContext<Self>,
2504 ) {
2505 self.show_inline_completions_override = show_inline_completions;
2506 self.refresh_inline_completion(false, true, cx);
2507 }
2508
2509 fn should_show_inline_completions(
2510 &self,
2511 buffer: &Model<Buffer>,
2512 buffer_position: language::Anchor,
2513 cx: &AppContext,
2514 ) -> bool {
2515 if !self.snippet_stack.is_empty() {
2516 return false;
2517 }
2518
2519 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
2520 return false;
2521 }
2522
2523 if let Some(provider) = self.inline_completion_provider() {
2524 if let Some(show_inline_completions) = self.show_inline_completions_override {
2525 show_inline_completions
2526 } else {
2527 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2528 }
2529 } else {
2530 false
2531 }
2532 }
2533
2534 fn inline_completions_disabled_in_scope(
2535 &self,
2536 buffer: &Model<Buffer>,
2537 buffer_position: language::Anchor,
2538 cx: &AppContext,
2539 ) -> bool {
2540 let snapshot = buffer.read(cx).snapshot();
2541 let settings = snapshot.settings_at(buffer_position, cx);
2542
2543 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
2544 return false;
2545 };
2546
2547 scope.override_name().map_or(false, |scope_name| {
2548 settings
2549 .inline_completions_disabled_in
2550 .iter()
2551 .any(|s| s == scope_name)
2552 })
2553 }
2554
2555 pub fn set_use_modal_editing(&mut self, to: bool) {
2556 self.use_modal_editing = to;
2557 }
2558
2559 pub fn use_modal_editing(&self) -> bool {
2560 self.use_modal_editing
2561 }
2562
2563 fn selections_did_change(
2564 &mut self,
2565 local: bool,
2566 old_cursor_position: &Anchor,
2567 show_completions: bool,
2568 cx: &mut ViewContext<Self>,
2569 ) {
2570 cx.invalidate_character_coordinates();
2571
2572 // Copy selections to primary selection buffer
2573 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
2574 if local {
2575 let selections = self.selections.all::<usize>(cx);
2576 let buffer_handle = self.buffer.read(cx).read(cx);
2577
2578 let mut text = String::new();
2579 for (index, selection) in selections.iter().enumerate() {
2580 let text_for_selection = buffer_handle
2581 .text_for_range(selection.start..selection.end)
2582 .collect::<String>();
2583
2584 text.push_str(&text_for_selection);
2585 if index != selections.len() - 1 {
2586 text.push('\n');
2587 }
2588 }
2589
2590 if !text.is_empty() {
2591 cx.write_to_primary(ClipboardItem::new_string(text));
2592 }
2593 }
2594
2595 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2596 self.buffer.update(cx, |buffer, cx| {
2597 buffer.set_active_selections(
2598 &self.selections.disjoint_anchors(),
2599 self.selections.line_mode,
2600 self.cursor_shape,
2601 cx,
2602 )
2603 });
2604 }
2605 let display_map = self
2606 .display_map
2607 .update(cx, |display_map, cx| display_map.snapshot(cx));
2608 let buffer = &display_map.buffer_snapshot;
2609 self.add_selections_state = None;
2610 self.select_next_state = None;
2611 self.select_prev_state = None;
2612 self.select_larger_syntax_node_stack.clear();
2613 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2614 self.snippet_stack
2615 .invalidate(&self.selections.disjoint_anchors(), buffer);
2616 self.take_rename(false, cx);
2617
2618 let new_cursor_position = self.selections.newest_anchor().head();
2619
2620 self.push_to_nav_history(
2621 *old_cursor_position,
2622 Some(new_cursor_position.to_point(buffer)),
2623 cx,
2624 );
2625
2626 if local {
2627 let new_cursor_position = self.selections.newest_anchor().head();
2628 let mut context_menu = self.context_menu.write();
2629 let completion_menu = match context_menu.as_ref() {
2630 Some(ContextMenu::Completions(menu)) => Some(menu),
2631
2632 _ => {
2633 *context_menu = None;
2634 None
2635 }
2636 };
2637
2638 if let Some(completion_menu) = completion_menu {
2639 let cursor_position = new_cursor_position.to_offset(buffer);
2640 let (word_range, kind) =
2641 buffer.surrounding_word(completion_menu.initial_position, true);
2642 if kind == Some(CharKind::Word)
2643 && word_range.to_inclusive().contains(&cursor_position)
2644 {
2645 let mut completion_menu = completion_menu.clone();
2646 drop(context_menu);
2647
2648 let query = Self::completion_query(buffer, cursor_position);
2649 cx.spawn(move |this, mut cx| async move {
2650 completion_menu
2651 .filter(query.as_deref(), cx.background_executor().clone())
2652 .await;
2653
2654 this.update(&mut cx, |this, cx| {
2655 let mut context_menu = this.context_menu.write();
2656 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2657 return;
2658 };
2659
2660 if menu.id > completion_menu.id {
2661 return;
2662 }
2663
2664 *context_menu = Some(ContextMenu::Completions(completion_menu));
2665 drop(context_menu);
2666 cx.notify();
2667 })
2668 })
2669 .detach();
2670
2671 if show_completions {
2672 self.show_completions(&ShowCompletions { trigger: None }, cx);
2673 }
2674 } else {
2675 drop(context_menu);
2676 self.hide_context_menu(cx);
2677 }
2678 } else {
2679 drop(context_menu);
2680 }
2681
2682 hide_hover(self, cx);
2683
2684 if old_cursor_position.to_display_point(&display_map).row()
2685 != new_cursor_position.to_display_point(&display_map).row()
2686 {
2687 self.available_code_actions.take();
2688 }
2689 self.refresh_code_actions(cx);
2690 self.refresh_document_highlights(cx);
2691 refresh_matching_bracket_highlights(self, cx);
2692 self.discard_inline_completion(false, cx);
2693 linked_editing_ranges::refresh_linked_ranges(self, cx);
2694 if self.git_blame_inline_enabled {
2695 self.start_inline_blame_timer(cx);
2696 }
2697 }
2698
2699 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2700 cx.emit(EditorEvent::SelectionsChanged { local });
2701
2702 if self.selections.disjoint_anchors().len() == 1 {
2703 cx.emit(SearchEvent::ActiveMatchChanged)
2704 }
2705 cx.notify();
2706 }
2707
2708 pub fn change_selections<R>(
2709 &mut self,
2710 autoscroll: Option<Autoscroll>,
2711 cx: &mut ViewContext<Self>,
2712 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2713 ) -> R {
2714 self.change_selections_inner(autoscroll, true, cx, change)
2715 }
2716
2717 pub fn change_selections_inner<R>(
2718 &mut self,
2719 autoscroll: Option<Autoscroll>,
2720 request_completions: bool,
2721 cx: &mut ViewContext<Self>,
2722 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2723 ) -> R {
2724 let old_cursor_position = self.selections.newest_anchor().head();
2725 self.push_to_selection_history();
2726
2727 let (changed, result) = self.selections.change_with(cx, change);
2728
2729 if changed {
2730 if let Some(autoscroll) = autoscroll {
2731 self.request_autoscroll(autoscroll, cx);
2732 }
2733 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2734
2735 if self.should_open_signature_help_automatically(
2736 &old_cursor_position,
2737 self.signature_help_state.backspace_pressed(),
2738 cx,
2739 ) {
2740 self.show_signature_help(&ShowSignatureHelp, cx);
2741 }
2742 self.signature_help_state.set_backspace_pressed(false);
2743 }
2744
2745 result
2746 }
2747
2748 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2749 where
2750 I: IntoIterator<Item = (Range<S>, T)>,
2751 S: ToOffset,
2752 T: Into<Arc<str>>,
2753 {
2754 if self.read_only(cx) {
2755 return;
2756 }
2757
2758 self.buffer
2759 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2760 }
2761
2762 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2763 where
2764 I: IntoIterator<Item = (Range<S>, T)>,
2765 S: ToOffset,
2766 T: Into<Arc<str>>,
2767 {
2768 if self.read_only(cx) {
2769 return;
2770 }
2771
2772 self.buffer.update(cx, |buffer, cx| {
2773 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2774 });
2775 }
2776
2777 pub fn edit_with_block_indent<I, S, T>(
2778 &mut self,
2779 edits: I,
2780 original_indent_columns: Vec<u32>,
2781 cx: &mut ViewContext<Self>,
2782 ) where
2783 I: IntoIterator<Item = (Range<S>, T)>,
2784 S: ToOffset,
2785 T: Into<Arc<str>>,
2786 {
2787 if self.read_only(cx) {
2788 return;
2789 }
2790
2791 self.buffer.update(cx, |buffer, cx| {
2792 buffer.edit(
2793 edits,
2794 Some(AutoindentMode::Block {
2795 original_indent_columns,
2796 }),
2797 cx,
2798 )
2799 });
2800 }
2801
2802 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2803 self.hide_context_menu(cx);
2804
2805 match phase {
2806 SelectPhase::Begin {
2807 position,
2808 add,
2809 click_count,
2810 } => self.begin_selection(position, add, click_count, cx),
2811 SelectPhase::BeginColumnar {
2812 position,
2813 goal_column,
2814 reset,
2815 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2816 SelectPhase::Extend {
2817 position,
2818 click_count,
2819 } => self.extend_selection(position, click_count, cx),
2820 SelectPhase::Update {
2821 position,
2822 goal_column,
2823 scroll_delta,
2824 } => self.update_selection(position, goal_column, scroll_delta, cx),
2825 SelectPhase::End => self.end_selection(cx),
2826 }
2827 }
2828
2829 fn extend_selection(
2830 &mut self,
2831 position: DisplayPoint,
2832 click_count: usize,
2833 cx: &mut ViewContext<Self>,
2834 ) {
2835 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2836 let tail = self.selections.newest::<usize>(cx).tail();
2837 self.begin_selection(position, false, click_count, cx);
2838
2839 let position = position.to_offset(&display_map, Bias::Left);
2840 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2841
2842 let mut pending_selection = self
2843 .selections
2844 .pending_anchor()
2845 .expect("extend_selection not called with pending selection");
2846 if position >= tail {
2847 pending_selection.start = tail_anchor;
2848 } else {
2849 pending_selection.end = tail_anchor;
2850 pending_selection.reversed = true;
2851 }
2852
2853 let mut pending_mode = self.selections.pending_mode().unwrap();
2854 match &mut pending_mode {
2855 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2856 _ => {}
2857 }
2858
2859 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2860 s.set_pending(pending_selection, pending_mode)
2861 });
2862 }
2863
2864 fn begin_selection(
2865 &mut self,
2866 position: DisplayPoint,
2867 add: bool,
2868 click_count: usize,
2869 cx: &mut ViewContext<Self>,
2870 ) {
2871 if !self.focus_handle.is_focused(cx) {
2872 self.last_focused_descendant = None;
2873 cx.focus(&self.focus_handle);
2874 }
2875
2876 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2877 let buffer = &display_map.buffer_snapshot;
2878 let newest_selection = self.selections.newest_anchor().clone();
2879 let position = display_map.clip_point(position, Bias::Left);
2880
2881 let start;
2882 let end;
2883 let mode;
2884 let auto_scroll;
2885 match click_count {
2886 1 => {
2887 start = buffer.anchor_before(position.to_point(&display_map));
2888 end = start;
2889 mode = SelectMode::Character;
2890 auto_scroll = true;
2891 }
2892 2 => {
2893 let range = movement::surrounding_word(&display_map, position);
2894 start = buffer.anchor_before(range.start.to_point(&display_map));
2895 end = buffer.anchor_before(range.end.to_point(&display_map));
2896 mode = SelectMode::Word(start..end);
2897 auto_scroll = true;
2898 }
2899 3 => {
2900 let position = display_map
2901 .clip_point(position, Bias::Left)
2902 .to_point(&display_map);
2903 let line_start = display_map.prev_line_boundary(position).0;
2904 let next_line_start = buffer.clip_point(
2905 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2906 Bias::Left,
2907 );
2908 start = buffer.anchor_before(line_start);
2909 end = buffer.anchor_before(next_line_start);
2910 mode = SelectMode::Line(start..end);
2911 auto_scroll = true;
2912 }
2913 _ => {
2914 start = buffer.anchor_before(0);
2915 end = buffer.anchor_before(buffer.len());
2916 mode = SelectMode::All;
2917 auto_scroll = false;
2918 }
2919 }
2920
2921 let point_to_delete: Option<usize> = {
2922 let selected_points: Vec<Selection<Point>> =
2923 self.selections.disjoint_in_range(start..end, cx);
2924
2925 if !add || click_count > 1 {
2926 None
2927 } else if !selected_points.is_empty() {
2928 Some(selected_points[0].id)
2929 } else {
2930 let clicked_point_already_selected =
2931 self.selections.disjoint.iter().find(|selection| {
2932 selection.start.to_point(buffer) == start.to_point(buffer)
2933 || selection.end.to_point(buffer) == end.to_point(buffer)
2934 });
2935
2936 clicked_point_already_selected.map(|selection| selection.id)
2937 }
2938 };
2939
2940 let selections_count = self.selections.count();
2941
2942 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2943 if let Some(point_to_delete) = point_to_delete {
2944 s.delete(point_to_delete);
2945
2946 if selections_count == 1 {
2947 s.set_pending_anchor_range(start..end, mode);
2948 }
2949 } else {
2950 if !add {
2951 s.clear_disjoint();
2952 } else if click_count > 1 {
2953 s.delete(newest_selection.id)
2954 }
2955
2956 s.set_pending_anchor_range(start..end, mode);
2957 }
2958 });
2959 }
2960
2961 fn begin_columnar_selection(
2962 &mut self,
2963 position: DisplayPoint,
2964 goal_column: u32,
2965 reset: bool,
2966 cx: &mut ViewContext<Self>,
2967 ) {
2968 if !self.focus_handle.is_focused(cx) {
2969 self.last_focused_descendant = None;
2970 cx.focus(&self.focus_handle);
2971 }
2972
2973 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2974
2975 if reset {
2976 let pointer_position = display_map
2977 .buffer_snapshot
2978 .anchor_before(position.to_point(&display_map));
2979
2980 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2981 s.clear_disjoint();
2982 s.set_pending_anchor_range(
2983 pointer_position..pointer_position,
2984 SelectMode::Character,
2985 );
2986 });
2987 }
2988
2989 let tail = self.selections.newest::<Point>(cx).tail();
2990 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2991
2992 if !reset {
2993 self.select_columns(
2994 tail.to_display_point(&display_map),
2995 position,
2996 goal_column,
2997 &display_map,
2998 cx,
2999 );
3000 }
3001 }
3002
3003 fn update_selection(
3004 &mut self,
3005 position: DisplayPoint,
3006 goal_column: u32,
3007 scroll_delta: gpui::Point<f32>,
3008 cx: &mut ViewContext<Self>,
3009 ) {
3010 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3011
3012 if let Some(tail) = self.columnar_selection_tail.as_ref() {
3013 let tail = tail.to_display_point(&display_map);
3014 self.select_columns(tail, position, goal_column, &display_map, cx);
3015 } else if let Some(mut pending) = self.selections.pending_anchor() {
3016 let buffer = self.buffer.read(cx).snapshot(cx);
3017 let head;
3018 let tail;
3019 let mode = self.selections.pending_mode().unwrap();
3020 match &mode {
3021 SelectMode::Character => {
3022 head = position.to_point(&display_map);
3023 tail = pending.tail().to_point(&buffer);
3024 }
3025 SelectMode::Word(original_range) => {
3026 let original_display_range = original_range.start.to_display_point(&display_map)
3027 ..original_range.end.to_display_point(&display_map);
3028 let original_buffer_range = original_display_range.start.to_point(&display_map)
3029 ..original_display_range.end.to_point(&display_map);
3030 if movement::is_inside_word(&display_map, position)
3031 || original_display_range.contains(&position)
3032 {
3033 let word_range = movement::surrounding_word(&display_map, position);
3034 if word_range.start < original_display_range.start {
3035 head = word_range.start.to_point(&display_map);
3036 } else {
3037 head = word_range.end.to_point(&display_map);
3038 }
3039 } else {
3040 head = position.to_point(&display_map);
3041 }
3042
3043 if head <= original_buffer_range.start {
3044 tail = original_buffer_range.end;
3045 } else {
3046 tail = original_buffer_range.start;
3047 }
3048 }
3049 SelectMode::Line(original_range) => {
3050 let original_range = original_range.to_point(&display_map.buffer_snapshot);
3051
3052 let position = display_map
3053 .clip_point(position, Bias::Left)
3054 .to_point(&display_map);
3055 let line_start = display_map.prev_line_boundary(position).0;
3056 let next_line_start = buffer.clip_point(
3057 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3058 Bias::Left,
3059 );
3060
3061 if line_start < original_range.start {
3062 head = line_start
3063 } else {
3064 head = next_line_start
3065 }
3066
3067 if head <= original_range.start {
3068 tail = original_range.end;
3069 } else {
3070 tail = original_range.start;
3071 }
3072 }
3073 SelectMode::All => {
3074 return;
3075 }
3076 };
3077
3078 if head < tail {
3079 pending.start = buffer.anchor_before(head);
3080 pending.end = buffer.anchor_before(tail);
3081 pending.reversed = true;
3082 } else {
3083 pending.start = buffer.anchor_before(tail);
3084 pending.end = buffer.anchor_before(head);
3085 pending.reversed = false;
3086 }
3087
3088 self.change_selections(None, cx, |s| {
3089 s.set_pending(pending, mode);
3090 });
3091 } else {
3092 log::error!("update_selection dispatched with no pending selection");
3093 return;
3094 }
3095
3096 self.apply_scroll_delta(scroll_delta, cx);
3097 cx.notify();
3098 }
3099
3100 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3101 self.columnar_selection_tail.take();
3102 if self.selections.pending_anchor().is_some() {
3103 let selections = self.selections.all::<usize>(cx);
3104 self.change_selections(None, cx, |s| {
3105 s.select(selections);
3106 s.clear_pending();
3107 });
3108 }
3109 }
3110
3111 fn select_columns(
3112 &mut self,
3113 tail: DisplayPoint,
3114 head: DisplayPoint,
3115 goal_column: u32,
3116 display_map: &DisplaySnapshot,
3117 cx: &mut ViewContext<Self>,
3118 ) {
3119 let start_row = cmp::min(tail.row(), head.row());
3120 let end_row = cmp::max(tail.row(), head.row());
3121 let start_column = cmp::min(tail.column(), goal_column);
3122 let end_column = cmp::max(tail.column(), goal_column);
3123 let reversed = start_column < tail.column();
3124
3125 let selection_ranges = (start_row.0..=end_row.0)
3126 .map(DisplayRow)
3127 .filter_map(|row| {
3128 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3129 let start = display_map
3130 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3131 .to_point(display_map);
3132 let end = display_map
3133 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3134 .to_point(display_map);
3135 if reversed {
3136 Some(end..start)
3137 } else {
3138 Some(start..end)
3139 }
3140 } else {
3141 None
3142 }
3143 })
3144 .collect::<Vec<_>>();
3145
3146 self.change_selections(None, cx, |s| {
3147 s.select_ranges(selection_ranges);
3148 });
3149 cx.notify();
3150 }
3151
3152 pub fn has_pending_nonempty_selection(&self) -> bool {
3153 let pending_nonempty_selection = match self.selections.pending_anchor() {
3154 Some(Selection { start, end, .. }) => start != end,
3155 None => false,
3156 };
3157
3158 pending_nonempty_selection
3159 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3160 }
3161
3162 pub fn has_pending_selection(&self) -> bool {
3163 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3164 }
3165
3166 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3167 if self.clear_expanded_diff_hunks(cx) {
3168 cx.notify();
3169 return;
3170 }
3171 if self.dismiss_menus_and_popups(true, cx) {
3172 return;
3173 }
3174
3175 if self.mode == EditorMode::Full
3176 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3177 {
3178 return;
3179 }
3180
3181 cx.propagate();
3182 }
3183
3184 pub fn dismiss_menus_and_popups(
3185 &mut self,
3186 should_report_inline_completion_event: bool,
3187 cx: &mut ViewContext<Self>,
3188 ) -> bool {
3189 if self.take_rename(false, cx).is_some() {
3190 return true;
3191 }
3192
3193 if hide_hover(self, cx) {
3194 return true;
3195 }
3196
3197 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3198 return true;
3199 }
3200
3201 if self.hide_context_menu(cx).is_some() {
3202 return true;
3203 }
3204
3205 if self.mouse_context_menu.take().is_some() {
3206 return true;
3207 }
3208
3209 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3210 return true;
3211 }
3212
3213 if self.snippet_stack.pop().is_some() {
3214 return true;
3215 }
3216
3217 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3218 self.dismiss_diagnostics(cx);
3219 return true;
3220 }
3221
3222 false
3223 }
3224
3225 fn linked_editing_ranges_for(
3226 &self,
3227 selection: Range<text::Anchor>,
3228 cx: &AppContext,
3229 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3230 if self.linked_edit_ranges.is_empty() {
3231 return None;
3232 }
3233 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3234 selection.end.buffer_id.and_then(|end_buffer_id| {
3235 if selection.start.buffer_id != Some(end_buffer_id) {
3236 return None;
3237 }
3238 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3239 let snapshot = buffer.read(cx).snapshot();
3240 self.linked_edit_ranges
3241 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3242 .map(|ranges| (ranges, snapshot, buffer))
3243 })?;
3244 use text::ToOffset as TO;
3245 // find offset from the start of current range to current cursor position
3246 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3247
3248 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3249 let start_difference = start_offset - start_byte_offset;
3250 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3251 let end_difference = end_offset - start_byte_offset;
3252 // Current range has associated linked ranges.
3253 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3254 for range in linked_ranges.iter() {
3255 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3256 let end_offset = start_offset + end_difference;
3257 let start_offset = start_offset + start_difference;
3258 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3259 continue;
3260 }
3261 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3262 if s.start.buffer_id != selection.start.buffer_id
3263 || s.end.buffer_id != selection.end.buffer_id
3264 {
3265 return false;
3266 }
3267 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3268 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3269 }) {
3270 continue;
3271 }
3272 let start = buffer_snapshot.anchor_after(start_offset);
3273 let end = buffer_snapshot.anchor_after(end_offset);
3274 linked_edits
3275 .entry(buffer.clone())
3276 .or_default()
3277 .push(start..end);
3278 }
3279 Some(linked_edits)
3280 }
3281
3282 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3283 let text: Arc<str> = text.into();
3284
3285 if self.read_only(cx) {
3286 return;
3287 }
3288
3289 let selections = self.selections.all_adjusted(cx);
3290 let mut bracket_inserted = false;
3291 let mut edits = Vec::new();
3292 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3293 let mut new_selections = Vec::with_capacity(selections.len());
3294 let mut new_autoclose_regions = Vec::new();
3295 let snapshot = self.buffer.read(cx).read(cx);
3296
3297 for (selection, autoclose_region) in
3298 self.selections_with_autoclose_regions(selections, &snapshot)
3299 {
3300 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3301 // Determine if the inserted text matches the opening or closing
3302 // bracket of any of this language's bracket pairs.
3303 let mut bracket_pair = None;
3304 let mut is_bracket_pair_start = false;
3305 let mut is_bracket_pair_end = false;
3306 if !text.is_empty() {
3307 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3308 // and they are removing the character that triggered IME popup.
3309 for (pair, enabled) in scope.brackets() {
3310 if !pair.close && !pair.surround {
3311 continue;
3312 }
3313
3314 if enabled && pair.start.ends_with(text.as_ref()) {
3315 let prefix_len = pair.start.len() - text.len();
3316 let preceding_text_matches_prefix = prefix_len == 0
3317 || (selection.start.column >= (prefix_len as u32)
3318 && snapshot.contains_str_at(
3319 Point::new(
3320 selection.start.row,
3321 selection.start.column - (prefix_len as u32),
3322 ),
3323 &pair.start[..prefix_len],
3324 ));
3325 if preceding_text_matches_prefix {
3326 bracket_pair = Some(pair.clone());
3327 is_bracket_pair_start = true;
3328 break;
3329 }
3330 }
3331 if pair.end.as_str() == text.as_ref() {
3332 bracket_pair = Some(pair.clone());
3333 is_bracket_pair_end = true;
3334 break;
3335 }
3336 }
3337 }
3338
3339 if let Some(bracket_pair) = bracket_pair {
3340 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3341 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3342 let auto_surround =
3343 self.use_auto_surround && snapshot_settings.use_auto_surround;
3344 if selection.is_empty() {
3345 if is_bracket_pair_start {
3346 // If the inserted text is a suffix of an opening bracket and the
3347 // selection is preceded by the rest of the opening bracket, then
3348 // insert the closing bracket.
3349 let following_text_allows_autoclose = snapshot
3350 .chars_at(selection.start)
3351 .next()
3352 .map_or(true, |c| scope.should_autoclose_before(c));
3353
3354 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3355 && bracket_pair.start.len() == 1
3356 {
3357 let target = bracket_pair.start.chars().next().unwrap();
3358 let current_line_count = snapshot
3359 .reversed_chars_at(selection.start)
3360 .take_while(|&c| c != '\n')
3361 .filter(|&c| c == target)
3362 .count();
3363 current_line_count % 2 == 1
3364 } else {
3365 false
3366 };
3367
3368 if autoclose
3369 && bracket_pair.close
3370 && following_text_allows_autoclose
3371 && !is_closing_quote
3372 {
3373 let anchor = snapshot.anchor_before(selection.end);
3374 new_selections.push((selection.map(|_| anchor), text.len()));
3375 new_autoclose_regions.push((
3376 anchor,
3377 text.len(),
3378 selection.id,
3379 bracket_pair.clone(),
3380 ));
3381 edits.push((
3382 selection.range(),
3383 format!("{}{}", text, bracket_pair.end).into(),
3384 ));
3385 bracket_inserted = true;
3386 continue;
3387 }
3388 }
3389
3390 if let Some(region) = autoclose_region {
3391 // If the selection is followed by an auto-inserted closing bracket,
3392 // then don't insert that closing bracket again; just move the selection
3393 // past the closing bracket.
3394 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3395 && text.as_ref() == region.pair.end.as_str();
3396 if should_skip {
3397 let anchor = snapshot.anchor_after(selection.end);
3398 new_selections
3399 .push((selection.map(|_| anchor), region.pair.end.len()));
3400 continue;
3401 }
3402 }
3403
3404 let always_treat_brackets_as_autoclosed = snapshot
3405 .settings_at(selection.start, cx)
3406 .always_treat_brackets_as_autoclosed;
3407 if always_treat_brackets_as_autoclosed
3408 && is_bracket_pair_end
3409 && snapshot.contains_str_at(selection.end, text.as_ref())
3410 {
3411 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3412 // and the inserted text is a closing bracket and the selection is followed
3413 // by the closing bracket then move the selection past the closing bracket.
3414 let anchor = snapshot.anchor_after(selection.end);
3415 new_selections.push((selection.map(|_| anchor), text.len()));
3416 continue;
3417 }
3418 }
3419 // If an opening bracket is 1 character long and is typed while
3420 // text is selected, then surround that text with the bracket pair.
3421 else if auto_surround
3422 && bracket_pair.surround
3423 && is_bracket_pair_start
3424 && bracket_pair.start.chars().count() == 1
3425 {
3426 edits.push((selection.start..selection.start, text.clone()));
3427 edits.push((
3428 selection.end..selection.end,
3429 bracket_pair.end.as_str().into(),
3430 ));
3431 bracket_inserted = true;
3432 new_selections.push((
3433 Selection {
3434 id: selection.id,
3435 start: snapshot.anchor_after(selection.start),
3436 end: snapshot.anchor_before(selection.end),
3437 reversed: selection.reversed,
3438 goal: selection.goal,
3439 },
3440 0,
3441 ));
3442 continue;
3443 }
3444 }
3445 }
3446
3447 if self.auto_replace_emoji_shortcode
3448 && selection.is_empty()
3449 && text.as_ref().ends_with(':')
3450 {
3451 if let Some(possible_emoji_short_code) =
3452 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3453 {
3454 if !possible_emoji_short_code.is_empty() {
3455 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3456 let emoji_shortcode_start = Point::new(
3457 selection.start.row,
3458 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3459 );
3460
3461 // Remove shortcode from buffer
3462 edits.push((
3463 emoji_shortcode_start..selection.start,
3464 "".to_string().into(),
3465 ));
3466 new_selections.push((
3467 Selection {
3468 id: selection.id,
3469 start: snapshot.anchor_after(emoji_shortcode_start),
3470 end: snapshot.anchor_before(selection.start),
3471 reversed: selection.reversed,
3472 goal: selection.goal,
3473 },
3474 0,
3475 ));
3476
3477 // Insert emoji
3478 let selection_start_anchor = snapshot.anchor_after(selection.start);
3479 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3480 edits.push((selection.start..selection.end, emoji.to_string().into()));
3481
3482 continue;
3483 }
3484 }
3485 }
3486 }
3487
3488 // If not handling any auto-close operation, then just replace the selected
3489 // text with the given input and move the selection to the end of the
3490 // newly inserted text.
3491 let anchor = snapshot.anchor_after(selection.end);
3492 if !self.linked_edit_ranges.is_empty() {
3493 let start_anchor = snapshot.anchor_before(selection.start);
3494
3495 let is_word_char = text.chars().next().map_or(true, |char| {
3496 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3497 classifier.is_word(char)
3498 });
3499
3500 if is_word_char {
3501 if let Some(ranges) = self
3502 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3503 {
3504 for (buffer, edits) in ranges {
3505 linked_edits
3506 .entry(buffer.clone())
3507 .or_default()
3508 .extend(edits.into_iter().map(|range| (range, text.clone())));
3509 }
3510 }
3511 }
3512 }
3513
3514 new_selections.push((selection.map(|_| anchor), 0));
3515 edits.push((selection.start..selection.end, text.clone()));
3516 }
3517
3518 drop(snapshot);
3519
3520 self.transact(cx, |this, cx| {
3521 this.buffer.update(cx, |buffer, cx| {
3522 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3523 });
3524 for (buffer, edits) in linked_edits {
3525 buffer.update(cx, |buffer, cx| {
3526 let snapshot = buffer.snapshot();
3527 let edits = edits
3528 .into_iter()
3529 .map(|(range, text)| {
3530 use text::ToPoint as TP;
3531 let end_point = TP::to_point(&range.end, &snapshot);
3532 let start_point = TP::to_point(&range.start, &snapshot);
3533 (start_point..end_point, text)
3534 })
3535 .sorted_by_key(|(range, _)| range.start)
3536 .collect::<Vec<_>>();
3537 buffer.edit(edits, None, cx);
3538 })
3539 }
3540 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3541 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3542 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
3543 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
3544 .zip(new_selection_deltas)
3545 .map(|(selection, delta)| Selection {
3546 id: selection.id,
3547 start: selection.start + delta,
3548 end: selection.end + delta,
3549 reversed: selection.reversed,
3550 goal: SelectionGoal::None,
3551 })
3552 .collect::<Vec<_>>();
3553
3554 let mut i = 0;
3555 for (position, delta, selection_id, pair) in new_autoclose_regions {
3556 let position = position.to_offset(&map.buffer_snapshot) + delta;
3557 let start = map.buffer_snapshot.anchor_before(position);
3558 let end = map.buffer_snapshot.anchor_after(position);
3559 while let Some(existing_state) = this.autoclose_regions.get(i) {
3560 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
3561 Ordering::Less => i += 1,
3562 Ordering::Greater => break,
3563 Ordering::Equal => {
3564 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
3565 Ordering::Less => i += 1,
3566 Ordering::Equal => break,
3567 Ordering::Greater => break,
3568 }
3569 }
3570 }
3571 }
3572 this.autoclose_regions.insert(
3573 i,
3574 AutocloseRegion {
3575 selection_id,
3576 range: start..end,
3577 pair,
3578 },
3579 );
3580 }
3581
3582 let had_active_inline_completion = this.has_active_inline_completion(cx);
3583 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3584 s.select(new_selections)
3585 });
3586
3587 if !bracket_inserted {
3588 if let Some(on_type_format_task) =
3589 this.trigger_on_type_formatting(text.to_string(), cx)
3590 {
3591 on_type_format_task.detach_and_log_err(cx);
3592 }
3593 }
3594
3595 let editor_settings = EditorSettings::get_global(cx);
3596 if bracket_inserted
3597 && (editor_settings.auto_signature_help
3598 || editor_settings.show_signature_help_after_edits)
3599 {
3600 this.show_signature_help(&ShowSignatureHelp, cx);
3601 }
3602
3603 let trigger_in_words = !had_active_inline_completion;
3604 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3605 linked_editing_ranges::refresh_linked_ranges(this, cx);
3606 this.refresh_inline_completion(true, false, cx);
3607 });
3608 }
3609
3610 fn find_possible_emoji_shortcode_at_position(
3611 snapshot: &MultiBufferSnapshot,
3612 position: Point,
3613 ) -> Option<String> {
3614 let mut chars = Vec::new();
3615 let mut found_colon = false;
3616 for char in snapshot.reversed_chars_at(position).take(100) {
3617 // Found a possible emoji shortcode in the middle of the buffer
3618 if found_colon {
3619 if char.is_whitespace() {
3620 chars.reverse();
3621 return Some(chars.iter().collect());
3622 }
3623 // If the previous character is not a whitespace, we are in the middle of a word
3624 // and we only want to complete the shortcode if the word is made up of other emojis
3625 let mut containing_word = String::new();
3626 for ch in snapshot
3627 .reversed_chars_at(position)
3628 .skip(chars.len() + 1)
3629 .take(100)
3630 {
3631 if ch.is_whitespace() {
3632 break;
3633 }
3634 containing_word.push(ch);
3635 }
3636 let containing_word = containing_word.chars().rev().collect::<String>();
3637 if util::word_consists_of_emojis(containing_word.as_str()) {
3638 chars.reverse();
3639 return Some(chars.iter().collect());
3640 }
3641 }
3642
3643 if char.is_whitespace() || !char.is_ascii() {
3644 return None;
3645 }
3646 if char == ':' {
3647 found_colon = true;
3648 } else {
3649 chars.push(char);
3650 }
3651 }
3652 // Found a possible emoji shortcode at the beginning of the buffer
3653 chars.reverse();
3654 Some(chars.iter().collect())
3655 }
3656
3657 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3658 self.transact(cx, |this, cx| {
3659 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3660 let selections = this.selections.all::<usize>(cx);
3661 let multi_buffer = this.buffer.read(cx);
3662 let buffer = multi_buffer.snapshot(cx);
3663 selections
3664 .iter()
3665 .map(|selection| {
3666 let start_point = selection.start.to_point(&buffer);
3667 let mut indent =
3668 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3669 indent.len = cmp::min(indent.len, start_point.column);
3670 let start = selection.start;
3671 let end = selection.end;
3672 let selection_is_empty = start == end;
3673 let language_scope = buffer.language_scope_at(start);
3674 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3675 &language_scope
3676 {
3677 let leading_whitespace_len = buffer
3678 .reversed_chars_at(start)
3679 .take_while(|c| c.is_whitespace() && *c != '\n')
3680 .map(|c| c.len_utf8())
3681 .sum::<usize>();
3682
3683 let trailing_whitespace_len = buffer
3684 .chars_at(end)
3685 .take_while(|c| c.is_whitespace() && *c != '\n')
3686 .map(|c| c.len_utf8())
3687 .sum::<usize>();
3688
3689 let insert_extra_newline =
3690 language.brackets().any(|(pair, enabled)| {
3691 let pair_start = pair.start.trim_end();
3692 let pair_end = pair.end.trim_start();
3693
3694 enabled
3695 && pair.newline
3696 && buffer.contains_str_at(
3697 end + trailing_whitespace_len,
3698 pair_end,
3699 )
3700 && buffer.contains_str_at(
3701 (start - leading_whitespace_len)
3702 .saturating_sub(pair_start.len()),
3703 pair_start,
3704 )
3705 });
3706
3707 // Comment extension on newline is allowed only for cursor selections
3708 let comment_delimiter = maybe!({
3709 if !selection_is_empty {
3710 return None;
3711 }
3712
3713 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3714 return None;
3715 }
3716
3717 let delimiters = language.line_comment_prefixes();
3718 let max_len_of_delimiter =
3719 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3720 let (snapshot, range) =
3721 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3722
3723 let mut index_of_first_non_whitespace = 0;
3724 let comment_candidate = snapshot
3725 .chars_for_range(range)
3726 .skip_while(|c| {
3727 let should_skip = c.is_whitespace();
3728 if should_skip {
3729 index_of_first_non_whitespace += 1;
3730 }
3731 should_skip
3732 })
3733 .take(max_len_of_delimiter)
3734 .collect::<String>();
3735 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3736 comment_candidate.starts_with(comment_prefix.as_ref())
3737 })?;
3738 let cursor_is_placed_after_comment_marker =
3739 index_of_first_non_whitespace + comment_prefix.len()
3740 <= start_point.column as usize;
3741 if cursor_is_placed_after_comment_marker {
3742 Some(comment_prefix.clone())
3743 } else {
3744 None
3745 }
3746 });
3747 (comment_delimiter, insert_extra_newline)
3748 } else {
3749 (None, false)
3750 };
3751
3752 let capacity_for_delimiter = comment_delimiter
3753 .as_deref()
3754 .map(str::len)
3755 .unwrap_or_default();
3756 let mut new_text =
3757 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3758 new_text.push('\n');
3759 new_text.extend(indent.chars());
3760 if let Some(delimiter) = &comment_delimiter {
3761 new_text.push_str(delimiter);
3762 }
3763 if insert_extra_newline {
3764 new_text = new_text.repeat(2);
3765 }
3766
3767 let anchor = buffer.anchor_after(end);
3768 let new_selection = selection.map(|_| anchor);
3769 (
3770 (start..end, new_text),
3771 (insert_extra_newline, new_selection),
3772 )
3773 })
3774 .unzip()
3775 };
3776
3777 this.edit_with_autoindent(edits, cx);
3778 let buffer = this.buffer.read(cx).snapshot(cx);
3779 let new_selections = selection_fixup_info
3780 .into_iter()
3781 .map(|(extra_newline_inserted, new_selection)| {
3782 let mut cursor = new_selection.end.to_point(&buffer);
3783 if extra_newline_inserted {
3784 cursor.row -= 1;
3785 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3786 }
3787 new_selection.map(|_| cursor)
3788 })
3789 .collect();
3790
3791 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3792 this.refresh_inline_completion(true, false, cx);
3793 });
3794 }
3795
3796 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3797 let buffer = self.buffer.read(cx);
3798 let snapshot = buffer.snapshot(cx);
3799
3800 let mut edits = Vec::new();
3801 let mut rows = Vec::new();
3802
3803 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3804 let cursor = selection.head();
3805 let row = cursor.row;
3806
3807 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3808
3809 let newline = "\n".to_string();
3810 edits.push((start_of_line..start_of_line, newline));
3811
3812 rows.push(row + rows_inserted as u32);
3813 }
3814
3815 self.transact(cx, |editor, cx| {
3816 editor.edit(edits, cx);
3817
3818 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3819 let mut index = 0;
3820 s.move_cursors_with(|map, _, _| {
3821 let row = rows[index];
3822 index += 1;
3823
3824 let point = Point::new(row, 0);
3825 let boundary = map.next_line_boundary(point).1;
3826 let clipped = map.clip_point(boundary, Bias::Left);
3827
3828 (clipped, SelectionGoal::None)
3829 });
3830 });
3831
3832 let mut indent_edits = Vec::new();
3833 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3834 for row in rows {
3835 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3836 for (row, indent) in indents {
3837 if indent.len == 0 {
3838 continue;
3839 }
3840
3841 let text = match indent.kind {
3842 IndentKind::Space => " ".repeat(indent.len as usize),
3843 IndentKind::Tab => "\t".repeat(indent.len as usize),
3844 };
3845 let point = Point::new(row.0, 0);
3846 indent_edits.push((point..point, text));
3847 }
3848 }
3849 editor.edit(indent_edits, cx);
3850 });
3851 }
3852
3853 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3854 let buffer = self.buffer.read(cx);
3855 let snapshot = buffer.snapshot(cx);
3856
3857 let mut edits = Vec::new();
3858 let mut rows = Vec::new();
3859 let mut rows_inserted = 0;
3860
3861 for selection in self.selections.all_adjusted(cx) {
3862 let cursor = selection.head();
3863 let row = cursor.row;
3864
3865 let point = Point::new(row + 1, 0);
3866 let start_of_line = snapshot.clip_point(point, Bias::Left);
3867
3868 let newline = "\n".to_string();
3869 edits.push((start_of_line..start_of_line, newline));
3870
3871 rows_inserted += 1;
3872 rows.push(row + rows_inserted);
3873 }
3874
3875 self.transact(cx, |editor, cx| {
3876 editor.edit(edits, cx);
3877
3878 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3879 let mut index = 0;
3880 s.move_cursors_with(|map, _, _| {
3881 let row = rows[index];
3882 index += 1;
3883
3884 let point = Point::new(row, 0);
3885 let boundary = map.next_line_boundary(point).1;
3886 let clipped = map.clip_point(boundary, Bias::Left);
3887
3888 (clipped, SelectionGoal::None)
3889 });
3890 });
3891
3892 let mut indent_edits = Vec::new();
3893 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3894 for row in rows {
3895 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3896 for (row, indent) in indents {
3897 if indent.len == 0 {
3898 continue;
3899 }
3900
3901 let text = match indent.kind {
3902 IndentKind::Space => " ".repeat(indent.len as usize),
3903 IndentKind::Tab => "\t".repeat(indent.len as usize),
3904 };
3905 let point = Point::new(row.0, 0);
3906 indent_edits.push((point..point, text));
3907 }
3908 }
3909 editor.edit(indent_edits, cx);
3910 });
3911 }
3912
3913 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3914 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3915 original_indent_columns: Vec::new(),
3916 });
3917 self.insert_with_autoindent_mode(text, autoindent, cx);
3918 }
3919
3920 fn insert_with_autoindent_mode(
3921 &mut self,
3922 text: &str,
3923 autoindent_mode: Option<AutoindentMode>,
3924 cx: &mut ViewContext<Self>,
3925 ) {
3926 if self.read_only(cx) {
3927 return;
3928 }
3929
3930 let text: Arc<str> = text.into();
3931 self.transact(cx, |this, cx| {
3932 let old_selections = this.selections.all_adjusted(cx);
3933 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3934 let anchors = {
3935 let snapshot = buffer.read(cx);
3936 old_selections
3937 .iter()
3938 .map(|s| {
3939 let anchor = snapshot.anchor_after(s.head());
3940 s.map(|_| anchor)
3941 })
3942 .collect::<Vec<_>>()
3943 };
3944 buffer.edit(
3945 old_selections
3946 .iter()
3947 .map(|s| (s.start..s.end, text.clone())),
3948 autoindent_mode,
3949 cx,
3950 );
3951 anchors
3952 });
3953
3954 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3955 s.select_anchors(selection_anchors);
3956 })
3957 });
3958 }
3959
3960 fn trigger_completion_on_input(
3961 &mut self,
3962 text: &str,
3963 trigger_in_words: bool,
3964 cx: &mut ViewContext<Self>,
3965 ) {
3966 if self.is_completion_trigger(text, trigger_in_words, cx) {
3967 self.show_completions(
3968 &ShowCompletions {
3969 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3970 },
3971 cx,
3972 );
3973 } else {
3974 self.hide_context_menu(cx);
3975 }
3976 }
3977
3978 fn is_completion_trigger(
3979 &self,
3980 text: &str,
3981 trigger_in_words: bool,
3982 cx: &mut ViewContext<Self>,
3983 ) -> bool {
3984 let position = self.selections.newest_anchor().head();
3985 let multibuffer = self.buffer.read(cx);
3986 let Some(buffer) = position
3987 .buffer_id
3988 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3989 else {
3990 return false;
3991 };
3992
3993 if let Some(completion_provider) = &self.completion_provider {
3994 completion_provider.is_completion_trigger(
3995 &buffer,
3996 position.text_anchor,
3997 text,
3998 trigger_in_words,
3999 cx,
4000 )
4001 } else {
4002 false
4003 }
4004 }
4005
4006 /// If any empty selections is touching the start of its innermost containing autoclose
4007 /// region, expand it to select the brackets.
4008 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
4009 let selections = self.selections.all::<usize>(cx);
4010 let buffer = self.buffer.read(cx).read(cx);
4011 let new_selections = self
4012 .selections_with_autoclose_regions(selections, &buffer)
4013 .map(|(mut selection, region)| {
4014 if !selection.is_empty() {
4015 return selection;
4016 }
4017
4018 if let Some(region) = region {
4019 let mut range = region.range.to_offset(&buffer);
4020 if selection.start == range.start && range.start >= region.pair.start.len() {
4021 range.start -= region.pair.start.len();
4022 if buffer.contains_str_at(range.start, ®ion.pair.start)
4023 && buffer.contains_str_at(range.end, ®ion.pair.end)
4024 {
4025 range.end += region.pair.end.len();
4026 selection.start = range.start;
4027 selection.end = range.end;
4028
4029 return selection;
4030 }
4031 }
4032 }
4033
4034 let always_treat_brackets_as_autoclosed = buffer
4035 .settings_at(selection.start, cx)
4036 .always_treat_brackets_as_autoclosed;
4037
4038 if !always_treat_brackets_as_autoclosed {
4039 return selection;
4040 }
4041
4042 if let Some(scope) = buffer.language_scope_at(selection.start) {
4043 for (pair, enabled) in scope.brackets() {
4044 if !enabled || !pair.close {
4045 continue;
4046 }
4047
4048 if buffer.contains_str_at(selection.start, &pair.end) {
4049 let pair_start_len = pair.start.len();
4050 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
4051 {
4052 selection.start -= pair_start_len;
4053 selection.end += pair.end.len();
4054
4055 return selection;
4056 }
4057 }
4058 }
4059 }
4060
4061 selection
4062 })
4063 .collect();
4064
4065 drop(buffer);
4066 self.change_selections(None, cx, |selections| selections.select(new_selections));
4067 }
4068
4069 /// Iterate the given selections, and for each one, find the smallest surrounding
4070 /// autoclose region. This uses the ordering of the selections and the autoclose
4071 /// regions to avoid repeated comparisons.
4072 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4073 &'a self,
4074 selections: impl IntoIterator<Item = Selection<D>>,
4075 buffer: &'a MultiBufferSnapshot,
4076 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4077 let mut i = 0;
4078 let mut regions = self.autoclose_regions.as_slice();
4079 selections.into_iter().map(move |selection| {
4080 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4081
4082 let mut enclosing = None;
4083 while let Some(pair_state) = regions.get(i) {
4084 if pair_state.range.end.to_offset(buffer) < range.start {
4085 regions = ®ions[i + 1..];
4086 i = 0;
4087 } else if pair_state.range.start.to_offset(buffer) > range.end {
4088 break;
4089 } else {
4090 if pair_state.selection_id == selection.id {
4091 enclosing = Some(pair_state);
4092 }
4093 i += 1;
4094 }
4095 }
4096
4097 (selection, enclosing)
4098 })
4099 }
4100
4101 /// Remove any autoclose regions that no longer contain their selection.
4102 fn invalidate_autoclose_regions(
4103 &mut self,
4104 mut selections: &[Selection<Anchor>],
4105 buffer: &MultiBufferSnapshot,
4106 ) {
4107 self.autoclose_regions.retain(|state| {
4108 let mut i = 0;
4109 while let Some(selection) = selections.get(i) {
4110 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4111 selections = &selections[1..];
4112 continue;
4113 }
4114 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4115 break;
4116 }
4117 if selection.id == state.selection_id {
4118 return true;
4119 } else {
4120 i += 1;
4121 }
4122 }
4123 false
4124 });
4125 }
4126
4127 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4128 let offset = position.to_offset(buffer);
4129 let (word_range, kind) = buffer.surrounding_word(offset, true);
4130 if offset > word_range.start && kind == Some(CharKind::Word) {
4131 Some(
4132 buffer
4133 .text_for_range(word_range.start..offset)
4134 .collect::<String>(),
4135 )
4136 } else {
4137 None
4138 }
4139 }
4140
4141 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4142 self.refresh_inlay_hints(
4143 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4144 cx,
4145 );
4146 }
4147
4148 pub fn inlay_hints_enabled(&self) -> bool {
4149 self.inlay_hint_cache.enabled
4150 }
4151
4152 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4153 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4154 return;
4155 }
4156
4157 let reason_description = reason.description();
4158 let ignore_debounce = matches!(
4159 reason,
4160 InlayHintRefreshReason::SettingsChange(_)
4161 | InlayHintRefreshReason::Toggle(_)
4162 | InlayHintRefreshReason::ExcerptsRemoved(_)
4163 );
4164 let (invalidate_cache, required_languages) = match reason {
4165 InlayHintRefreshReason::Toggle(enabled) => {
4166 self.inlay_hint_cache.enabled = enabled;
4167 if enabled {
4168 (InvalidationStrategy::RefreshRequested, None)
4169 } else {
4170 self.inlay_hint_cache.clear();
4171 self.splice_inlays(
4172 self.visible_inlay_hints(cx)
4173 .iter()
4174 .map(|inlay| inlay.id)
4175 .collect(),
4176 Vec::new(),
4177 cx,
4178 );
4179 return;
4180 }
4181 }
4182 InlayHintRefreshReason::SettingsChange(new_settings) => {
4183 match self.inlay_hint_cache.update_settings(
4184 &self.buffer,
4185 new_settings,
4186 self.visible_inlay_hints(cx),
4187 cx,
4188 ) {
4189 ControlFlow::Break(Some(InlaySplice {
4190 to_remove,
4191 to_insert,
4192 })) => {
4193 self.splice_inlays(to_remove, to_insert, cx);
4194 return;
4195 }
4196 ControlFlow::Break(None) => return,
4197 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4198 }
4199 }
4200 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4201 if let Some(InlaySplice {
4202 to_remove,
4203 to_insert,
4204 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4205 {
4206 self.splice_inlays(to_remove, to_insert, cx);
4207 }
4208 return;
4209 }
4210 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4211 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4212 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4213 }
4214 InlayHintRefreshReason::RefreshRequested => {
4215 (InvalidationStrategy::RefreshRequested, None)
4216 }
4217 };
4218
4219 if let Some(InlaySplice {
4220 to_remove,
4221 to_insert,
4222 }) = self.inlay_hint_cache.spawn_hint_refresh(
4223 reason_description,
4224 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4225 invalidate_cache,
4226 ignore_debounce,
4227 cx,
4228 ) {
4229 self.splice_inlays(to_remove, to_insert, cx);
4230 }
4231 }
4232
4233 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4234 self.display_map
4235 .read(cx)
4236 .current_inlays()
4237 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4238 .cloned()
4239 .collect()
4240 }
4241
4242 pub fn excerpts_for_inlay_hints_query(
4243 &self,
4244 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4245 cx: &mut ViewContext<Editor>,
4246 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4247 let Some(project) = self.project.as_ref() else {
4248 return HashMap::default();
4249 };
4250 let project = project.read(cx);
4251 let multi_buffer = self.buffer().read(cx);
4252 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4253 let multi_buffer_visible_start = self
4254 .scroll_manager
4255 .anchor()
4256 .anchor
4257 .to_point(&multi_buffer_snapshot);
4258 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4259 multi_buffer_visible_start
4260 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4261 Bias::Left,
4262 );
4263 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4264 multi_buffer
4265 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4266 .into_iter()
4267 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4268 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4269 let buffer = buffer_handle.read(cx);
4270 let buffer_file = project::File::from_dyn(buffer.file())?;
4271 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4272 let worktree_entry = buffer_worktree
4273 .read(cx)
4274 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4275 if worktree_entry.is_ignored {
4276 return None;
4277 }
4278
4279 let language = buffer.language()?;
4280 if let Some(restrict_to_languages) = restrict_to_languages {
4281 if !restrict_to_languages.contains(language) {
4282 return None;
4283 }
4284 }
4285 Some((
4286 excerpt_id,
4287 (
4288 buffer_handle,
4289 buffer.version().clone(),
4290 excerpt_visible_range,
4291 ),
4292 ))
4293 })
4294 .collect()
4295 }
4296
4297 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4298 TextLayoutDetails {
4299 text_system: cx.text_system().clone(),
4300 editor_style: self.style.clone().unwrap(),
4301 rem_size: cx.rem_size(),
4302 scroll_anchor: self.scroll_manager.anchor(),
4303 visible_rows: self.visible_line_count(),
4304 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4305 }
4306 }
4307
4308 fn splice_inlays(
4309 &self,
4310 to_remove: Vec<InlayId>,
4311 to_insert: Vec<Inlay>,
4312 cx: &mut ViewContext<Self>,
4313 ) {
4314 self.display_map.update(cx, |display_map, cx| {
4315 display_map.splice_inlays(to_remove, to_insert, cx);
4316 });
4317 cx.notify();
4318 }
4319
4320 fn trigger_on_type_formatting(
4321 &self,
4322 input: String,
4323 cx: &mut ViewContext<Self>,
4324 ) -> Option<Task<Result<()>>> {
4325 if input.len() != 1 {
4326 return None;
4327 }
4328
4329 let project = self.project.as_ref()?;
4330 let position = self.selections.newest_anchor().head();
4331 let (buffer, buffer_position) = self
4332 .buffer
4333 .read(cx)
4334 .text_anchor_for_position(position, cx)?;
4335
4336 let settings = language_settings::language_settings(
4337 buffer
4338 .read(cx)
4339 .language_at(buffer_position)
4340 .map(|l| l.name()),
4341 buffer.read(cx).file(),
4342 cx,
4343 );
4344 if !settings.use_on_type_format {
4345 return None;
4346 }
4347
4348 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4349 // hence we do LSP request & edit on host side only — add formats to host's history.
4350 let push_to_lsp_host_history = true;
4351 // If this is not the host, append its history with new edits.
4352 let push_to_client_history = project.read(cx).is_via_collab();
4353
4354 let on_type_formatting = project.update(cx, |project, cx| {
4355 project.on_type_format(
4356 buffer.clone(),
4357 buffer_position,
4358 input,
4359 push_to_lsp_host_history,
4360 cx,
4361 )
4362 });
4363 Some(cx.spawn(|editor, mut cx| async move {
4364 if let Some(transaction) = on_type_formatting.await? {
4365 if push_to_client_history {
4366 buffer
4367 .update(&mut cx, |buffer, _| {
4368 buffer.push_transaction(transaction, Instant::now());
4369 })
4370 .ok();
4371 }
4372 editor.update(&mut cx, |editor, cx| {
4373 editor.refresh_document_highlights(cx);
4374 })?;
4375 }
4376 Ok(())
4377 }))
4378 }
4379
4380 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4381 if self.pending_rename.is_some() {
4382 return;
4383 }
4384
4385 let Some(provider) = self.completion_provider.as_ref() else {
4386 return;
4387 };
4388
4389 let position = self.selections.newest_anchor().head();
4390 let (buffer, buffer_position) =
4391 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4392 output
4393 } else {
4394 return;
4395 };
4396
4397 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4398 let is_followup_invoke = {
4399 let context_menu_state = self.context_menu.read();
4400 matches!(
4401 context_menu_state.deref(),
4402 Some(ContextMenu::Completions(_))
4403 )
4404 };
4405 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4406 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4407 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4408 CompletionTriggerKind::TRIGGER_CHARACTER
4409 }
4410
4411 _ => CompletionTriggerKind::INVOKED,
4412 };
4413 let completion_context = CompletionContext {
4414 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4415 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4416 Some(String::from(trigger))
4417 } else {
4418 None
4419 }
4420 }),
4421 trigger_kind,
4422 };
4423 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4424 let sort_completions = provider.sort_completions();
4425
4426 let id = post_inc(&mut self.next_completion_id);
4427 let task = cx.spawn(|this, mut cx| {
4428 async move {
4429 this.update(&mut cx, |this, _| {
4430 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4431 })?;
4432 let completions = completions.await.log_err();
4433 let menu = if let Some(completions) = completions {
4434 let mut menu = CompletionsMenu {
4435 id,
4436 sort_completions,
4437 initial_position: position,
4438 match_candidates: completions
4439 .iter()
4440 .enumerate()
4441 .map(|(id, completion)| {
4442 StringMatchCandidate::new(
4443 id,
4444 completion.label.text[completion.label.filter_range.clone()]
4445 .into(),
4446 )
4447 })
4448 .collect(),
4449 buffer: buffer.clone(),
4450 completions: Arc::new(RwLock::new(completions.into())),
4451 matches: Vec::new().into(),
4452 selected_item: 0,
4453 scroll_handle: UniformListScrollHandle::new(),
4454 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4455 DebouncedDelay::new(),
4456 )),
4457 };
4458 menu.filter(query.as_deref(), cx.background_executor().clone())
4459 .await;
4460
4461 if menu.matches.is_empty() {
4462 None
4463 } else {
4464 this.update(&mut cx, |editor, cx| {
4465 let completions = menu.completions.clone();
4466 let matches = menu.matches.clone();
4467
4468 let delay_ms = EditorSettings::get_global(cx)
4469 .completion_documentation_secondary_query_debounce;
4470 let delay = Duration::from_millis(delay_ms);
4471 editor
4472 .completion_documentation_pre_resolve_debounce
4473 .fire_new(delay, cx, |editor, cx| {
4474 CompletionsMenu::pre_resolve_completion_documentation(
4475 buffer,
4476 completions,
4477 matches,
4478 editor,
4479 cx,
4480 )
4481 });
4482 })
4483 .ok();
4484 Some(menu)
4485 }
4486 } else {
4487 None
4488 };
4489
4490 this.update(&mut cx, |this, cx| {
4491 let mut context_menu = this.context_menu.write();
4492 match context_menu.as_ref() {
4493 None => {}
4494
4495 Some(ContextMenu::Completions(prev_menu)) => {
4496 if prev_menu.id > id {
4497 return;
4498 }
4499 }
4500
4501 _ => return,
4502 }
4503
4504 if this.focus_handle.is_focused(cx) && menu.is_some() {
4505 let menu = menu.unwrap();
4506 *context_menu = Some(ContextMenu::Completions(menu));
4507 drop(context_menu);
4508 this.discard_inline_completion(false, cx);
4509 cx.notify();
4510 } else if this.completion_tasks.len() <= 1 {
4511 // If there are no more completion tasks and the last menu was
4512 // empty, we should hide it. If it was already hidden, we should
4513 // also show the copilot completion when available.
4514 drop(context_menu);
4515 if this.hide_context_menu(cx).is_none() {
4516 this.update_visible_inline_completion(cx);
4517 }
4518 }
4519 })?;
4520
4521 Ok::<_, anyhow::Error>(())
4522 }
4523 .log_err()
4524 });
4525
4526 self.completion_tasks.push((id, task));
4527 }
4528
4529 pub fn confirm_completion(
4530 &mut self,
4531 action: &ConfirmCompletion,
4532 cx: &mut ViewContext<Self>,
4533 ) -> Option<Task<Result<()>>> {
4534 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4535 }
4536
4537 pub fn compose_completion(
4538 &mut self,
4539 action: &ComposeCompletion,
4540 cx: &mut ViewContext<Self>,
4541 ) -> Option<Task<Result<()>>> {
4542 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4543 }
4544
4545 fn do_completion(
4546 &mut self,
4547 item_ix: Option<usize>,
4548 intent: CompletionIntent,
4549 cx: &mut ViewContext<Editor>,
4550 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4551 use language::ToOffset as _;
4552
4553 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4554 menu
4555 } else {
4556 return None;
4557 };
4558
4559 let mat = completions_menu
4560 .matches
4561 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4562 let buffer_handle = completions_menu.buffer;
4563 let completions = completions_menu.completions.read();
4564 let completion = completions.get(mat.candidate_id)?;
4565 cx.stop_propagation();
4566
4567 let snippet;
4568 let text;
4569
4570 if completion.is_snippet() {
4571 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4572 text = snippet.as_ref().unwrap().text.clone();
4573 } else {
4574 snippet = None;
4575 text = completion.new_text.clone();
4576 };
4577 let selections = self.selections.all::<usize>(cx);
4578 let buffer = buffer_handle.read(cx);
4579 let old_range = completion.old_range.to_offset(buffer);
4580 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4581
4582 let newest_selection = self.selections.newest_anchor();
4583 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4584 return None;
4585 }
4586
4587 let lookbehind = newest_selection
4588 .start
4589 .text_anchor
4590 .to_offset(buffer)
4591 .saturating_sub(old_range.start);
4592 let lookahead = old_range
4593 .end
4594 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4595 let mut common_prefix_len = old_text
4596 .bytes()
4597 .zip(text.bytes())
4598 .take_while(|(a, b)| a == b)
4599 .count();
4600
4601 let snapshot = self.buffer.read(cx).snapshot(cx);
4602 let mut range_to_replace: Option<Range<isize>> = None;
4603 let mut ranges = Vec::new();
4604 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4605 for selection in &selections {
4606 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4607 let start = selection.start.saturating_sub(lookbehind);
4608 let end = selection.end + lookahead;
4609 if selection.id == newest_selection.id {
4610 range_to_replace = Some(
4611 ((start + common_prefix_len) as isize - selection.start as isize)
4612 ..(end as isize - selection.start as isize),
4613 );
4614 }
4615 ranges.push(start + common_prefix_len..end);
4616 } else {
4617 common_prefix_len = 0;
4618 ranges.clear();
4619 ranges.extend(selections.iter().map(|s| {
4620 if s.id == newest_selection.id {
4621 range_to_replace = Some(
4622 old_range.start.to_offset_utf16(&snapshot).0 as isize
4623 - selection.start as isize
4624 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4625 - selection.start as isize,
4626 );
4627 old_range.clone()
4628 } else {
4629 s.start..s.end
4630 }
4631 }));
4632 break;
4633 }
4634 if !self.linked_edit_ranges.is_empty() {
4635 let start_anchor = snapshot.anchor_before(selection.head());
4636 let end_anchor = snapshot.anchor_after(selection.tail());
4637 if let Some(ranges) = self
4638 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4639 {
4640 for (buffer, edits) in ranges {
4641 linked_edits.entry(buffer.clone()).or_default().extend(
4642 edits
4643 .into_iter()
4644 .map(|range| (range, text[common_prefix_len..].to_owned())),
4645 );
4646 }
4647 }
4648 }
4649 }
4650 let text = &text[common_prefix_len..];
4651
4652 cx.emit(EditorEvent::InputHandled {
4653 utf16_range_to_replace: range_to_replace,
4654 text: text.into(),
4655 });
4656
4657 self.transact(cx, |this, cx| {
4658 if let Some(mut snippet) = snippet {
4659 snippet.text = text.to_string();
4660 for tabstop in snippet.tabstops.iter_mut().flatten() {
4661 tabstop.start -= common_prefix_len as isize;
4662 tabstop.end -= common_prefix_len as isize;
4663 }
4664
4665 this.insert_snippet(&ranges, snippet, cx).log_err();
4666 } else {
4667 this.buffer.update(cx, |buffer, cx| {
4668 buffer.edit(
4669 ranges.iter().map(|range| (range.clone(), text)),
4670 this.autoindent_mode.clone(),
4671 cx,
4672 );
4673 });
4674 }
4675 for (buffer, edits) in linked_edits {
4676 buffer.update(cx, |buffer, cx| {
4677 let snapshot = buffer.snapshot();
4678 let edits = edits
4679 .into_iter()
4680 .map(|(range, text)| {
4681 use text::ToPoint as TP;
4682 let end_point = TP::to_point(&range.end, &snapshot);
4683 let start_point = TP::to_point(&range.start, &snapshot);
4684 (start_point..end_point, text)
4685 })
4686 .sorted_by_key(|(range, _)| range.start)
4687 .collect::<Vec<_>>();
4688 buffer.edit(edits, None, cx);
4689 })
4690 }
4691
4692 this.refresh_inline_completion(true, false, cx);
4693 });
4694
4695 let show_new_completions_on_confirm = completion
4696 .confirm
4697 .as_ref()
4698 .map_or(false, |confirm| confirm(intent, cx));
4699 if show_new_completions_on_confirm {
4700 self.show_completions(&ShowCompletions { trigger: None }, cx);
4701 }
4702
4703 let provider = self.completion_provider.as_ref()?;
4704 let apply_edits = provider.apply_additional_edits_for_completion(
4705 buffer_handle,
4706 completion.clone(),
4707 true,
4708 cx,
4709 );
4710
4711 let editor_settings = EditorSettings::get_global(cx);
4712 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4713 // After the code completion is finished, users often want to know what signatures are needed.
4714 // so we should automatically call signature_help
4715 self.show_signature_help(&ShowSignatureHelp, cx);
4716 }
4717
4718 Some(cx.foreground_executor().spawn(async move {
4719 apply_edits.await?;
4720 Ok(())
4721 }))
4722 }
4723
4724 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4725 let mut context_menu = self.context_menu.write();
4726 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4727 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4728 // Toggle if we're selecting the same one
4729 *context_menu = None;
4730 cx.notify();
4731 return;
4732 } else {
4733 // Otherwise, clear it and start a new one
4734 *context_menu = None;
4735 cx.notify();
4736 }
4737 }
4738 drop(context_menu);
4739 let snapshot = self.snapshot(cx);
4740 let deployed_from_indicator = action.deployed_from_indicator;
4741 let mut task = self.code_actions_task.take();
4742 let action = action.clone();
4743 cx.spawn(|editor, mut cx| async move {
4744 while let Some(prev_task) = task {
4745 prev_task.await.log_err();
4746 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4747 }
4748
4749 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4750 if editor.focus_handle.is_focused(cx) {
4751 let multibuffer_point = action
4752 .deployed_from_indicator
4753 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4754 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4755 let (buffer, buffer_row) = snapshot
4756 .buffer_snapshot
4757 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4758 .and_then(|(buffer_snapshot, range)| {
4759 editor
4760 .buffer
4761 .read(cx)
4762 .buffer(buffer_snapshot.remote_id())
4763 .map(|buffer| (buffer, range.start.row))
4764 })?;
4765 let (_, code_actions) = editor
4766 .available_code_actions
4767 .clone()
4768 .and_then(|(location, code_actions)| {
4769 let snapshot = location.buffer.read(cx).snapshot();
4770 let point_range = location.range.to_point(&snapshot);
4771 let point_range = point_range.start.row..=point_range.end.row;
4772 if point_range.contains(&buffer_row) {
4773 Some((location, code_actions))
4774 } else {
4775 None
4776 }
4777 })
4778 .unzip();
4779 let buffer_id = buffer.read(cx).remote_id();
4780 let tasks = editor
4781 .tasks
4782 .get(&(buffer_id, buffer_row))
4783 .map(|t| Arc::new(t.to_owned()));
4784 if tasks.is_none() && code_actions.is_none() {
4785 return None;
4786 }
4787
4788 editor.completion_tasks.clear();
4789 editor.discard_inline_completion(false, cx);
4790 let task_context =
4791 tasks
4792 .as_ref()
4793 .zip(editor.project.clone())
4794 .map(|(tasks, project)| {
4795 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4796 });
4797
4798 Some(cx.spawn(|editor, mut cx| async move {
4799 let task_context = match task_context {
4800 Some(task_context) => task_context.await,
4801 None => None,
4802 };
4803 let resolved_tasks =
4804 tasks.zip(task_context).map(|(tasks, task_context)| {
4805 Arc::new(ResolvedTasks {
4806 templates: tasks.resolve(&task_context).collect(),
4807 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4808 multibuffer_point.row,
4809 tasks.column,
4810 )),
4811 })
4812 });
4813 let spawn_straight_away = resolved_tasks
4814 .as_ref()
4815 .map_or(false, |tasks| tasks.templates.len() == 1)
4816 && code_actions
4817 .as_ref()
4818 .map_or(true, |actions| actions.is_empty());
4819 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4820 *editor.context_menu.write() =
4821 Some(ContextMenu::CodeActions(CodeActionsMenu {
4822 buffer,
4823 actions: CodeActionContents {
4824 tasks: resolved_tasks,
4825 actions: code_actions,
4826 },
4827 selected_item: Default::default(),
4828 scroll_handle: UniformListScrollHandle::default(),
4829 deployed_from_indicator,
4830 }));
4831 if spawn_straight_away {
4832 if let Some(task) = editor.confirm_code_action(
4833 &ConfirmCodeAction { item_ix: Some(0) },
4834 cx,
4835 ) {
4836 cx.notify();
4837 return task;
4838 }
4839 }
4840 cx.notify();
4841 Task::ready(Ok(()))
4842 }) {
4843 task.await
4844 } else {
4845 Ok(())
4846 }
4847 }))
4848 } else {
4849 Some(Task::ready(Ok(())))
4850 }
4851 })?;
4852 if let Some(task) = spawned_test_task {
4853 task.await?;
4854 }
4855
4856 Ok::<_, anyhow::Error>(())
4857 })
4858 .detach_and_log_err(cx);
4859 }
4860
4861 pub fn confirm_code_action(
4862 &mut self,
4863 action: &ConfirmCodeAction,
4864 cx: &mut ViewContext<Self>,
4865 ) -> Option<Task<Result<()>>> {
4866 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4867 menu
4868 } else {
4869 return None;
4870 };
4871 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4872 let action = actions_menu.actions.get(action_ix)?;
4873 let title = action.label();
4874 let buffer = actions_menu.buffer;
4875 let workspace = self.workspace()?;
4876
4877 match action {
4878 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4879 workspace.update(cx, |workspace, cx| {
4880 workspace::tasks::schedule_resolved_task(
4881 workspace,
4882 task_source_kind,
4883 resolved_task,
4884 false,
4885 cx,
4886 );
4887
4888 Some(Task::ready(Ok(())))
4889 })
4890 }
4891 CodeActionsItem::CodeAction {
4892 excerpt_id,
4893 action,
4894 provider,
4895 } => {
4896 let apply_code_action =
4897 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4898 let workspace = workspace.downgrade();
4899 Some(cx.spawn(|editor, cx| async move {
4900 let project_transaction = apply_code_action.await?;
4901 Self::open_project_transaction(
4902 &editor,
4903 workspace,
4904 project_transaction,
4905 title,
4906 cx,
4907 )
4908 .await
4909 }))
4910 }
4911 }
4912 }
4913
4914 pub async fn open_project_transaction(
4915 this: &WeakView<Editor>,
4916 workspace: WeakView<Workspace>,
4917 transaction: ProjectTransaction,
4918 title: String,
4919 mut cx: AsyncWindowContext,
4920 ) -> Result<()> {
4921 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4922 cx.update(|cx| {
4923 entries.sort_unstable_by_key(|(buffer, _)| {
4924 buffer.read(cx).file().map(|f| f.path().clone())
4925 });
4926 })?;
4927
4928 // If the project transaction's edits are all contained within this editor, then
4929 // avoid opening a new editor to display them.
4930
4931 if let Some((buffer, transaction)) = entries.first() {
4932 if entries.len() == 1 {
4933 let excerpt = this.update(&mut cx, |editor, cx| {
4934 editor
4935 .buffer()
4936 .read(cx)
4937 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4938 })?;
4939 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4940 if excerpted_buffer == *buffer {
4941 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4942 let excerpt_range = excerpt_range.to_offset(buffer);
4943 buffer
4944 .edited_ranges_for_transaction::<usize>(transaction)
4945 .all(|range| {
4946 excerpt_range.start <= range.start
4947 && excerpt_range.end >= range.end
4948 })
4949 })?;
4950
4951 if all_edits_within_excerpt {
4952 return Ok(());
4953 }
4954 }
4955 }
4956 }
4957 } else {
4958 return Ok(());
4959 }
4960
4961 let mut ranges_to_highlight = Vec::new();
4962 let excerpt_buffer = cx.new_model(|cx| {
4963 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4964 for (buffer_handle, transaction) in &entries {
4965 let buffer = buffer_handle.read(cx);
4966 ranges_to_highlight.extend(
4967 multibuffer.push_excerpts_with_context_lines(
4968 buffer_handle.clone(),
4969 buffer
4970 .edited_ranges_for_transaction::<usize>(transaction)
4971 .collect(),
4972 DEFAULT_MULTIBUFFER_CONTEXT,
4973 cx,
4974 ),
4975 );
4976 }
4977 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4978 multibuffer
4979 })?;
4980
4981 workspace.update(&mut cx, |workspace, cx| {
4982 let project = workspace.project().clone();
4983 let editor =
4984 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4985 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4986 editor.update(cx, |editor, cx| {
4987 editor.highlight_background::<Self>(
4988 &ranges_to_highlight,
4989 |theme| theme.editor_highlighted_line_background,
4990 cx,
4991 );
4992 });
4993 })?;
4994
4995 Ok(())
4996 }
4997
4998 pub fn clear_code_action_providers(&mut self) {
4999 self.code_action_providers.clear();
5000 self.available_code_actions.take();
5001 }
5002
5003 pub fn push_code_action_provider(
5004 &mut self,
5005 provider: Arc<dyn CodeActionProvider>,
5006 cx: &mut ViewContext<Self>,
5007 ) {
5008 self.code_action_providers.push(provider);
5009 self.refresh_code_actions(cx);
5010 }
5011
5012 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5013 let buffer = self.buffer.read(cx);
5014 let newest_selection = self.selections.newest_anchor().clone();
5015 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
5016 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
5017 if start_buffer != end_buffer {
5018 return None;
5019 }
5020
5021 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
5022 cx.background_executor()
5023 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
5024 .await;
5025
5026 let (providers, tasks) = this.update(&mut cx, |this, cx| {
5027 let providers = this.code_action_providers.clone();
5028 let tasks = this
5029 .code_action_providers
5030 .iter()
5031 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
5032 .collect::<Vec<_>>();
5033 (providers, tasks)
5034 })?;
5035
5036 let mut actions = Vec::new();
5037 for (provider, provider_actions) in
5038 providers.into_iter().zip(future::join_all(tasks).await)
5039 {
5040 if let Some(provider_actions) = provider_actions.log_err() {
5041 actions.extend(provider_actions.into_iter().map(|action| {
5042 AvailableCodeAction {
5043 excerpt_id: newest_selection.start.excerpt_id,
5044 action,
5045 provider: provider.clone(),
5046 }
5047 }));
5048 }
5049 }
5050
5051 this.update(&mut cx, |this, cx| {
5052 this.available_code_actions = if actions.is_empty() {
5053 None
5054 } else {
5055 Some((
5056 Location {
5057 buffer: start_buffer,
5058 range: start..end,
5059 },
5060 actions.into(),
5061 ))
5062 };
5063 cx.notify();
5064 })
5065 }));
5066 None
5067 }
5068
5069 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5070 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5071 self.show_git_blame_inline = false;
5072
5073 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5074 cx.background_executor().timer(delay).await;
5075
5076 this.update(&mut cx, |this, cx| {
5077 this.show_git_blame_inline = true;
5078 cx.notify();
5079 })
5080 .log_err();
5081 }));
5082 }
5083 }
5084
5085 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5086 if self.pending_rename.is_some() {
5087 return None;
5088 }
5089
5090 let provider = self.semantics_provider.clone()?;
5091 let buffer = self.buffer.read(cx);
5092 let newest_selection = self.selections.newest_anchor().clone();
5093 let cursor_position = newest_selection.head();
5094 let (cursor_buffer, cursor_buffer_position) =
5095 buffer.text_anchor_for_position(cursor_position, cx)?;
5096 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5097 if cursor_buffer != tail_buffer {
5098 return None;
5099 }
5100
5101 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5102 cx.background_executor()
5103 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5104 .await;
5105
5106 let highlights = if let Some(highlights) = cx
5107 .update(|cx| {
5108 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5109 })
5110 .ok()
5111 .flatten()
5112 {
5113 highlights.await.log_err()
5114 } else {
5115 None
5116 };
5117
5118 if let Some(highlights) = highlights {
5119 this.update(&mut cx, |this, cx| {
5120 if this.pending_rename.is_some() {
5121 return;
5122 }
5123
5124 let buffer_id = cursor_position.buffer_id;
5125 let buffer = this.buffer.read(cx);
5126 if !buffer
5127 .text_anchor_for_position(cursor_position, cx)
5128 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5129 {
5130 return;
5131 }
5132
5133 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5134 let mut write_ranges = Vec::new();
5135 let mut read_ranges = Vec::new();
5136 for highlight in highlights {
5137 for (excerpt_id, excerpt_range) in
5138 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5139 {
5140 let start = highlight
5141 .range
5142 .start
5143 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5144 let end = highlight
5145 .range
5146 .end
5147 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5148 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5149 continue;
5150 }
5151
5152 let range = Anchor {
5153 buffer_id,
5154 excerpt_id,
5155 text_anchor: start,
5156 }..Anchor {
5157 buffer_id,
5158 excerpt_id,
5159 text_anchor: end,
5160 };
5161 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5162 write_ranges.push(range);
5163 } else {
5164 read_ranges.push(range);
5165 }
5166 }
5167 }
5168
5169 this.highlight_background::<DocumentHighlightRead>(
5170 &read_ranges,
5171 |theme| theme.editor_document_highlight_read_background,
5172 cx,
5173 );
5174 this.highlight_background::<DocumentHighlightWrite>(
5175 &write_ranges,
5176 |theme| theme.editor_document_highlight_write_background,
5177 cx,
5178 );
5179 cx.notify();
5180 })
5181 .log_err();
5182 }
5183 }));
5184 None
5185 }
5186
5187 pub fn refresh_inline_completion(
5188 &mut self,
5189 debounce: bool,
5190 user_requested: bool,
5191 cx: &mut ViewContext<Self>,
5192 ) -> Option<()> {
5193 let provider = self.inline_completion_provider()?;
5194 let cursor = self.selections.newest_anchor().head();
5195 let (buffer, cursor_buffer_position) =
5196 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5197
5198 if !user_requested
5199 && (!self.enable_inline_completions
5200 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5201 {
5202 self.discard_inline_completion(false, cx);
5203 return None;
5204 }
5205
5206 self.update_visible_inline_completion(cx);
5207 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5208 Some(())
5209 }
5210
5211 fn cycle_inline_completion(
5212 &mut self,
5213 direction: Direction,
5214 cx: &mut ViewContext<Self>,
5215 ) -> Option<()> {
5216 let provider = self.inline_completion_provider()?;
5217 let cursor = self.selections.newest_anchor().head();
5218 let (buffer, cursor_buffer_position) =
5219 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5220 if !self.enable_inline_completions
5221 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5222 {
5223 return None;
5224 }
5225
5226 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5227 self.update_visible_inline_completion(cx);
5228
5229 Some(())
5230 }
5231
5232 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5233 if !self.has_active_inline_completion(cx) {
5234 self.refresh_inline_completion(false, true, cx);
5235 return;
5236 }
5237
5238 self.update_visible_inline_completion(cx);
5239 }
5240
5241 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5242 self.show_cursor_names(cx);
5243 }
5244
5245 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5246 self.show_cursor_names = true;
5247 cx.notify();
5248 cx.spawn(|this, mut cx| async move {
5249 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5250 this.update(&mut cx, |this, cx| {
5251 this.show_cursor_names = false;
5252 cx.notify()
5253 })
5254 .ok()
5255 })
5256 .detach();
5257 }
5258
5259 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5260 if self.has_active_inline_completion(cx) {
5261 self.cycle_inline_completion(Direction::Next, cx);
5262 } else {
5263 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5264 if is_copilot_disabled {
5265 cx.propagate();
5266 }
5267 }
5268 }
5269
5270 pub fn previous_inline_completion(
5271 &mut self,
5272 _: &PreviousInlineCompletion,
5273 cx: &mut ViewContext<Self>,
5274 ) {
5275 if self.has_active_inline_completion(cx) {
5276 self.cycle_inline_completion(Direction::Prev, cx);
5277 } else {
5278 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5279 if is_copilot_disabled {
5280 cx.propagate();
5281 }
5282 }
5283 }
5284
5285 pub fn accept_inline_completion(
5286 &mut self,
5287 _: &AcceptInlineCompletion,
5288 cx: &mut ViewContext<Self>,
5289 ) {
5290 let Some(completion) = self.take_active_inline_completion(cx) else {
5291 return;
5292 };
5293 if let Some(provider) = self.inline_completion_provider() {
5294 provider.accept(cx);
5295 }
5296
5297 cx.emit(EditorEvent::InputHandled {
5298 utf16_range_to_replace: None,
5299 text: completion.text.to_string().into(),
5300 });
5301
5302 if let Some(range) = completion.delete_range {
5303 self.change_selections(None, cx, |s| s.select_ranges([range]))
5304 }
5305 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5306 self.refresh_inline_completion(true, true, cx);
5307 cx.notify();
5308 }
5309
5310 pub fn accept_partial_inline_completion(
5311 &mut self,
5312 _: &AcceptPartialInlineCompletion,
5313 cx: &mut ViewContext<Self>,
5314 ) {
5315 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5316 if let Some(completion) = self.take_active_inline_completion(cx) {
5317 let mut partial_completion = completion
5318 .text
5319 .chars()
5320 .by_ref()
5321 .take_while(|c| c.is_alphabetic())
5322 .collect::<String>();
5323 if partial_completion.is_empty() {
5324 partial_completion = completion
5325 .text
5326 .chars()
5327 .by_ref()
5328 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5329 .collect::<String>();
5330 }
5331
5332 cx.emit(EditorEvent::InputHandled {
5333 utf16_range_to_replace: None,
5334 text: partial_completion.clone().into(),
5335 });
5336
5337 if let Some(range) = completion.delete_range {
5338 self.change_selections(None, cx, |s| s.select_ranges([range]))
5339 }
5340 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5341
5342 self.refresh_inline_completion(true, true, cx);
5343 cx.notify();
5344 }
5345 }
5346 }
5347
5348 fn discard_inline_completion(
5349 &mut self,
5350 should_report_inline_completion_event: bool,
5351 cx: &mut ViewContext<Self>,
5352 ) -> bool {
5353 if let Some(provider) = self.inline_completion_provider() {
5354 provider.discard(should_report_inline_completion_event, cx);
5355 }
5356
5357 self.take_active_inline_completion(cx).is_some()
5358 }
5359
5360 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5361 if let Some(completion) = self.active_inline_completion.as_ref() {
5362 let buffer = self.buffer.read(cx).read(cx);
5363 completion.position.is_valid(&buffer)
5364 } else {
5365 false
5366 }
5367 }
5368
5369 fn take_active_inline_completion(
5370 &mut self,
5371 cx: &mut ViewContext<Self>,
5372 ) -> Option<CompletionState> {
5373 let completion = self.active_inline_completion.take()?;
5374 let render_inlay_ids = completion.render_inlay_ids.clone();
5375 self.display_map.update(cx, |map, cx| {
5376 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5377 });
5378 let buffer = self.buffer.read(cx).read(cx);
5379
5380 if completion.position.is_valid(&buffer) {
5381 Some(completion)
5382 } else {
5383 None
5384 }
5385 }
5386
5387 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5388 let selection = self.selections.newest_anchor();
5389 let cursor = selection.head();
5390
5391 let excerpt_id = cursor.excerpt_id;
5392
5393 if self.context_menu.read().is_none()
5394 && self.completion_tasks.is_empty()
5395 && selection.start == selection.end
5396 {
5397 if let Some(provider) = self.inline_completion_provider() {
5398 if let Some((buffer, cursor_buffer_position)) =
5399 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5400 {
5401 if let Some(proposal) =
5402 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5403 {
5404 let mut to_remove = Vec::new();
5405 if let Some(completion) = self.active_inline_completion.take() {
5406 to_remove.extend(completion.render_inlay_ids.iter());
5407 }
5408
5409 let to_add = proposal
5410 .inlays
5411 .iter()
5412 .filter_map(|inlay| {
5413 let snapshot = self.buffer.read(cx).snapshot(cx);
5414 let id = post_inc(&mut self.next_inlay_id);
5415 match inlay {
5416 InlayProposal::Hint(position, hint) => {
5417 let position =
5418 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5419 Some(Inlay::hint(id, position, hint))
5420 }
5421 InlayProposal::Suggestion(position, text) => {
5422 let position =
5423 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5424 Some(Inlay::suggestion(id, position, text.clone()))
5425 }
5426 }
5427 })
5428 .collect_vec();
5429
5430 self.active_inline_completion = Some(CompletionState {
5431 position: cursor,
5432 text: proposal.text,
5433 delete_range: proposal.delete_range.and_then(|range| {
5434 let snapshot = self.buffer.read(cx).snapshot(cx);
5435 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5436 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5437 Some(start?..end?)
5438 }),
5439 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5440 });
5441
5442 self.display_map
5443 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5444
5445 cx.notify();
5446 return;
5447 }
5448 }
5449 }
5450 }
5451
5452 self.discard_inline_completion(false, cx);
5453 }
5454
5455 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5456 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5457 }
5458
5459 fn render_code_actions_indicator(
5460 &self,
5461 _style: &EditorStyle,
5462 row: DisplayRow,
5463 is_active: bool,
5464 cx: &mut ViewContext<Self>,
5465 ) -> Option<IconButton> {
5466 if self.available_code_actions.is_some() {
5467 Some(
5468 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5469 .shape(ui::IconButtonShape::Square)
5470 .icon_size(IconSize::XSmall)
5471 .icon_color(Color::Muted)
5472 .selected(is_active)
5473 .tooltip({
5474 let focus_handle = self.focus_handle.clone();
5475 move |cx| {
5476 Tooltip::for_action_in(
5477 "Toggle Code Actions",
5478 &ToggleCodeActions {
5479 deployed_from_indicator: None,
5480 },
5481 &focus_handle,
5482 cx,
5483 )
5484 }
5485 })
5486 .on_click(cx.listener(move |editor, _e, cx| {
5487 editor.focus(cx);
5488 editor.toggle_code_actions(
5489 &ToggleCodeActions {
5490 deployed_from_indicator: Some(row),
5491 },
5492 cx,
5493 );
5494 })),
5495 )
5496 } else {
5497 None
5498 }
5499 }
5500
5501 fn clear_tasks(&mut self) {
5502 self.tasks.clear()
5503 }
5504
5505 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5506 if self.tasks.insert(key, value).is_some() {
5507 // This case should hopefully be rare, but just in case...
5508 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5509 }
5510 }
5511
5512 fn build_tasks_context(
5513 project: &Model<Project>,
5514 buffer: &Model<Buffer>,
5515 buffer_row: u32,
5516 tasks: &Arc<RunnableTasks>,
5517 cx: &mut ViewContext<Self>,
5518 ) -> Task<Option<task::TaskContext>> {
5519 let position = Point::new(buffer_row, tasks.column);
5520 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5521 let location = Location {
5522 buffer: buffer.clone(),
5523 range: range_start..range_start,
5524 };
5525 // Fill in the environmental variables from the tree-sitter captures
5526 let mut captured_task_variables = TaskVariables::default();
5527 for (capture_name, value) in tasks.extra_variables.clone() {
5528 captured_task_variables.insert(
5529 task::VariableName::Custom(capture_name.into()),
5530 value.clone(),
5531 );
5532 }
5533 project.update(cx, |project, cx| {
5534 project.task_store().update(cx, |task_store, cx| {
5535 task_store.task_context_for_location(captured_task_variables, location, cx)
5536 })
5537 })
5538 }
5539
5540 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5541 let Some((workspace, _)) = self.workspace.clone() else {
5542 return;
5543 };
5544 let Some(project) = self.project.clone() else {
5545 return;
5546 };
5547
5548 // Try to find a closest, enclosing node using tree-sitter that has a
5549 // task
5550 let Some((buffer, buffer_row, tasks)) = self
5551 .find_enclosing_node_task(cx)
5552 // Or find the task that's closest in row-distance.
5553 .or_else(|| self.find_closest_task(cx))
5554 else {
5555 return;
5556 };
5557
5558 let reveal_strategy = action.reveal;
5559 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5560 cx.spawn(|_, mut cx| async move {
5561 let context = task_context.await?;
5562 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5563
5564 let resolved = resolved_task.resolved.as_mut()?;
5565 resolved.reveal = reveal_strategy;
5566
5567 workspace
5568 .update(&mut cx, |workspace, cx| {
5569 workspace::tasks::schedule_resolved_task(
5570 workspace,
5571 task_source_kind,
5572 resolved_task,
5573 false,
5574 cx,
5575 );
5576 })
5577 .ok()
5578 })
5579 .detach();
5580 }
5581
5582 fn find_closest_task(
5583 &mut self,
5584 cx: &mut ViewContext<Self>,
5585 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5586 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5587
5588 let ((buffer_id, row), tasks) = self
5589 .tasks
5590 .iter()
5591 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5592
5593 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5594 let tasks = Arc::new(tasks.to_owned());
5595 Some((buffer, *row, tasks))
5596 }
5597
5598 fn find_enclosing_node_task(
5599 &mut self,
5600 cx: &mut ViewContext<Self>,
5601 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5602 let snapshot = self.buffer.read(cx).snapshot(cx);
5603 let offset = self.selections.newest::<usize>(cx).head();
5604 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5605 let buffer_id = excerpt.buffer().remote_id();
5606
5607 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5608 let mut cursor = layer.node().walk();
5609
5610 while cursor.goto_first_child_for_byte(offset).is_some() {
5611 if cursor.node().end_byte() == offset {
5612 cursor.goto_next_sibling();
5613 }
5614 }
5615
5616 // Ascend to the smallest ancestor that contains the range and has a task.
5617 loop {
5618 let node = cursor.node();
5619 let node_range = node.byte_range();
5620 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5621
5622 // Check if this node contains our offset
5623 if node_range.start <= offset && node_range.end >= offset {
5624 // If it contains offset, check for task
5625 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5626 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5627 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5628 }
5629 }
5630
5631 if !cursor.goto_parent() {
5632 break;
5633 }
5634 }
5635 None
5636 }
5637
5638 fn render_run_indicator(
5639 &self,
5640 _style: &EditorStyle,
5641 is_active: bool,
5642 row: DisplayRow,
5643 cx: &mut ViewContext<Self>,
5644 ) -> IconButton {
5645 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5646 .shape(ui::IconButtonShape::Square)
5647 .icon_size(IconSize::XSmall)
5648 .icon_color(Color::Muted)
5649 .selected(is_active)
5650 .on_click(cx.listener(move |editor, _e, cx| {
5651 editor.focus(cx);
5652 editor.toggle_code_actions(
5653 &ToggleCodeActions {
5654 deployed_from_indicator: Some(row),
5655 },
5656 cx,
5657 );
5658 }))
5659 }
5660
5661 pub fn context_menu_visible(&self) -> bool {
5662 self.context_menu
5663 .read()
5664 .as_ref()
5665 .map_or(false, |menu| menu.visible())
5666 }
5667
5668 fn render_context_menu(
5669 &self,
5670 cursor_position: DisplayPoint,
5671 style: &EditorStyle,
5672 max_height: Pixels,
5673 cx: &mut ViewContext<Editor>,
5674 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5675 self.context_menu.read().as_ref().map(|menu| {
5676 menu.render(
5677 cursor_position,
5678 style,
5679 max_height,
5680 self.workspace.as_ref().map(|(w, _)| w.clone()),
5681 cx,
5682 )
5683 })
5684 }
5685
5686 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5687 cx.notify();
5688 self.completion_tasks.clear();
5689 let context_menu = self.context_menu.write().take();
5690 if context_menu.is_some() {
5691 self.update_visible_inline_completion(cx);
5692 }
5693 context_menu
5694 }
5695
5696 pub fn insert_snippet(
5697 &mut self,
5698 insertion_ranges: &[Range<usize>],
5699 snippet: Snippet,
5700 cx: &mut ViewContext<Self>,
5701 ) -> Result<()> {
5702 struct Tabstop<T> {
5703 is_end_tabstop: bool,
5704 ranges: Vec<Range<T>>,
5705 }
5706
5707 let tabstops = self.buffer.update(cx, |buffer, cx| {
5708 let snippet_text: Arc<str> = snippet.text.clone().into();
5709 buffer.edit(
5710 insertion_ranges
5711 .iter()
5712 .cloned()
5713 .map(|range| (range, snippet_text.clone())),
5714 Some(AutoindentMode::EachLine),
5715 cx,
5716 );
5717
5718 let snapshot = &*buffer.read(cx);
5719 let snippet = &snippet;
5720 snippet
5721 .tabstops
5722 .iter()
5723 .map(|tabstop| {
5724 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5725 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5726 });
5727 let mut tabstop_ranges = tabstop
5728 .iter()
5729 .flat_map(|tabstop_range| {
5730 let mut delta = 0_isize;
5731 insertion_ranges.iter().map(move |insertion_range| {
5732 let insertion_start = insertion_range.start as isize + delta;
5733 delta +=
5734 snippet.text.len() as isize - insertion_range.len() as isize;
5735
5736 let start = ((insertion_start + tabstop_range.start) as usize)
5737 .min(snapshot.len());
5738 let end = ((insertion_start + tabstop_range.end) as usize)
5739 .min(snapshot.len());
5740 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5741 })
5742 })
5743 .collect::<Vec<_>>();
5744 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5745
5746 Tabstop {
5747 is_end_tabstop,
5748 ranges: tabstop_ranges,
5749 }
5750 })
5751 .collect::<Vec<_>>()
5752 });
5753 if let Some(tabstop) = tabstops.first() {
5754 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5755 s.select_ranges(tabstop.ranges.iter().cloned());
5756 });
5757
5758 // If we're already at the last tabstop and it's at the end of the snippet,
5759 // we're done, we don't need to keep the state around.
5760 if !tabstop.is_end_tabstop {
5761 let ranges = tabstops
5762 .into_iter()
5763 .map(|tabstop| tabstop.ranges)
5764 .collect::<Vec<_>>();
5765 self.snippet_stack.push(SnippetState {
5766 active_index: 0,
5767 ranges,
5768 });
5769 }
5770
5771 // Check whether the just-entered snippet ends with an auto-closable bracket.
5772 if self.autoclose_regions.is_empty() {
5773 let snapshot = self.buffer.read(cx).snapshot(cx);
5774 for selection in &mut self.selections.all::<Point>(cx) {
5775 let selection_head = selection.head();
5776 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5777 continue;
5778 };
5779
5780 let mut bracket_pair = None;
5781 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5782 let prev_chars = snapshot
5783 .reversed_chars_at(selection_head)
5784 .collect::<String>();
5785 for (pair, enabled) in scope.brackets() {
5786 if enabled
5787 && pair.close
5788 && prev_chars.starts_with(pair.start.as_str())
5789 && next_chars.starts_with(pair.end.as_str())
5790 {
5791 bracket_pair = Some(pair.clone());
5792 break;
5793 }
5794 }
5795 if let Some(pair) = bracket_pair {
5796 let start = snapshot.anchor_after(selection_head);
5797 let end = snapshot.anchor_after(selection_head);
5798 self.autoclose_regions.push(AutocloseRegion {
5799 selection_id: selection.id,
5800 range: start..end,
5801 pair,
5802 });
5803 }
5804 }
5805 }
5806 }
5807 Ok(())
5808 }
5809
5810 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5811 self.move_to_snippet_tabstop(Bias::Right, cx)
5812 }
5813
5814 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5815 self.move_to_snippet_tabstop(Bias::Left, cx)
5816 }
5817
5818 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5819 if let Some(mut snippet) = self.snippet_stack.pop() {
5820 match bias {
5821 Bias::Left => {
5822 if snippet.active_index > 0 {
5823 snippet.active_index -= 1;
5824 } else {
5825 self.snippet_stack.push(snippet);
5826 return false;
5827 }
5828 }
5829 Bias::Right => {
5830 if snippet.active_index + 1 < snippet.ranges.len() {
5831 snippet.active_index += 1;
5832 } else {
5833 self.snippet_stack.push(snippet);
5834 return false;
5835 }
5836 }
5837 }
5838 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5839 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5840 s.select_anchor_ranges(current_ranges.iter().cloned())
5841 });
5842 // If snippet state is not at the last tabstop, push it back on the stack
5843 if snippet.active_index + 1 < snippet.ranges.len() {
5844 self.snippet_stack.push(snippet);
5845 }
5846 return true;
5847 }
5848 }
5849
5850 false
5851 }
5852
5853 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5854 self.transact(cx, |this, cx| {
5855 this.select_all(&SelectAll, cx);
5856 this.insert("", cx);
5857 });
5858 }
5859
5860 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5861 self.transact(cx, |this, cx| {
5862 this.select_autoclose_pair(cx);
5863 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5864 if !this.linked_edit_ranges.is_empty() {
5865 let selections = this.selections.all::<MultiBufferPoint>(cx);
5866 let snapshot = this.buffer.read(cx).snapshot(cx);
5867
5868 for selection in selections.iter() {
5869 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5870 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5871 if selection_start.buffer_id != selection_end.buffer_id {
5872 continue;
5873 }
5874 if let Some(ranges) =
5875 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5876 {
5877 for (buffer, entries) in ranges {
5878 linked_ranges.entry(buffer).or_default().extend(entries);
5879 }
5880 }
5881 }
5882 }
5883
5884 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5885 if !this.selections.line_mode {
5886 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5887 for selection in &mut selections {
5888 if selection.is_empty() {
5889 let old_head = selection.head();
5890 let mut new_head =
5891 movement::left(&display_map, old_head.to_display_point(&display_map))
5892 .to_point(&display_map);
5893 if let Some((buffer, line_buffer_range)) = display_map
5894 .buffer_snapshot
5895 .buffer_line_for_row(MultiBufferRow(old_head.row))
5896 {
5897 let indent_size =
5898 buffer.indent_size_for_line(line_buffer_range.start.row);
5899 let indent_len = match indent_size.kind {
5900 IndentKind::Space => {
5901 buffer.settings_at(line_buffer_range.start, cx).tab_size
5902 }
5903 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5904 };
5905 if old_head.column <= indent_size.len && old_head.column > 0 {
5906 let indent_len = indent_len.get();
5907 new_head = cmp::min(
5908 new_head,
5909 MultiBufferPoint::new(
5910 old_head.row,
5911 ((old_head.column - 1) / indent_len) * indent_len,
5912 ),
5913 );
5914 }
5915 }
5916
5917 selection.set_head(new_head, SelectionGoal::None);
5918 }
5919 }
5920 }
5921
5922 this.signature_help_state.set_backspace_pressed(true);
5923 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5924 this.insert("", cx);
5925 let empty_str: Arc<str> = Arc::from("");
5926 for (buffer, edits) in linked_ranges {
5927 let snapshot = buffer.read(cx).snapshot();
5928 use text::ToPoint as TP;
5929
5930 let edits = edits
5931 .into_iter()
5932 .map(|range| {
5933 let end_point = TP::to_point(&range.end, &snapshot);
5934 let mut start_point = TP::to_point(&range.start, &snapshot);
5935
5936 if end_point == start_point {
5937 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5938 .saturating_sub(1);
5939 start_point = TP::to_point(&offset, &snapshot);
5940 };
5941
5942 (start_point..end_point, empty_str.clone())
5943 })
5944 .sorted_by_key(|(range, _)| range.start)
5945 .collect::<Vec<_>>();
5946 buffer.update(cx, |this, cx| {
5947 this.edit(edits, None, cx);
5948 })
5949 }
5950 this.refresh_inline_completion(true, false, cx);
5951 linked_editing_ranges::refresh_linked_ranges(this, cx);
5952 });
5953 }
5954
5955 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5956 self.transact(cx, |this, cx| {
5957 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5958 let line_mode = s.line_mode;
5959 s.move_with(|map, selection| {
5960 if selection.is_empty() && !line_mode {
5961 let cursor = movement::right(map, selection.head());
5962 selection.end = cursor;
5963 selection.reversed = true;
5964 selection.goal = SelectionGoal::None;
5965 }
5966 })
5967 });
5968 this.insert("", cx);
5969 this.refresh_inline_completion(true, false, cx);
5970 });
5971 }
5972
5973 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5974 if self.move_to_prev_snippet_tabstop(cx) {
5975 return;
5976 }
5977
5978 self.outdent(&Outdent, cx);
5979 }
5980
5981 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5982 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5983 return;
5984 }
5985
5986 let mut selections = self.selections.all_adjusted(cx);
5987 let buffer = self.buffer.read(cx);
5988 let snapshot = buffer.snapshot(cx);
5989 let rows_iter = selections.iter().map(|s| s.head().row);
5990 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5991
5992 let mut edits = Vec::new();
5993 let mut prev_edited_row = 0;
5994 let mut row_delta = 0;
5995 for selection in &mut selections {
5996 if selection.start.row != prev_edited_row {
5997 row_delta = 0;
5998 }
5999 prev_edited_row = selection.end.row;
6000
6001 // If the selection is non-empty, then increase the indentation of the selected lines.
6002 if !selection.is_empty() {
6003 row_delta =
6004 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6005 continue;
6006 }
6007
6008 // If the selection is empty and the cursor is in the leading whitespace before the
6009 // suggested indentation, then auto-indent the line.
6010 let cursor = selection.head();
6011 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
6012 if let Some(suggested_indent) =
6013 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
6014 {
6015 if cursor.column < suggested_indent.len
6016 && cursor.column <= current_indent.len
6017 && current_indent.len <= suggested_indent.len
6018 {
6019 selection.start = Point::new(cursor.row, suggested_indent.len);
6020 selection.end = selection.start;
6021 if row_delta == 0 {
6022 edits.extend(Buffer::edit_for_indent_size_adjustment(
6023 cursor.row,
6024 current_indent,
6025 suggested_indent,
6026 ));
6027 row_delta = suggested_indent.len - current_indent.len;
6028 }
6029 continue;
6030 }
6031 }
6032
6033 // Otherwise, insert a hard or soft tab.
6034 let settings = buffer.settings_at(cursor, cx);
6035 let tab_size = if settings.hard_tabs {
6036 IndentSize::tab()
6037 } else {
6038 let tab_size = settings.tab_size.get();
6039 let char_column = snapshot
6040 .text_for_range(Point::new(cursor.row, 0)..cursor)
6041 .flat_map(str::chars)
6042 .count()
6043 + row_delta as usize;
6044 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
6045 IndentSize::spaces(chars_to_next_tab_stop)
6046 };
6047 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
6048 selection.end = selection.start;
6049 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
6050 row_delta += tab_size.len;
6051 }
6052
6053 self.transact(cx, |this, cx| {
6054 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6055 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6056 this.refresh_inline_completion(true, false, cx);
6057 });
6058 }
6059
6060 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
6061 if self.read_only(cx) {
6062 return;
6063 }
6064 let mut selections = self.selections.all::<Point>(cx);
6065 let mut prev_edited_row = 0;
6066 let mut row_delta = 0;
6067 let mut edits = Vec::new();
6068 let buffer = self.buffer.read(cx);
6069 let snapshot = buffer.snapshot(cx);
6070 for selection in &mut selections {
6071 if selection.start.row != prev_edited_row {
6072 row_delta = 0;
6073 }
6074 prev_edited_row = selection.end.row;
6075
6076 row_delta =
6077 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6078 }
6079
6080 self.transact(cx, |this, cx| {
6081 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6082 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6083 });
6084 }
6085
6086 fn indent_selection(
6087 buffer: &MultiBuffer,
6088 snapshot: &MultiBufferSnapshot,
6089 selection: &mut Selection<Point>,
6090 edits: &mut Vec<(Range<Point>, String)>,
6091 delta_for_start_row: u32,
6092 cx: &AppContext,
6093 ) -> u32 {
6094 let settings = buffer.settings_at(selection.start, cx);
6095 let tab_size = settings.tab_size.get();
6096 let indent_kind = if settings.hard_tabs {
6097 IndentKind::Tab
6098 } else {
6099 IndentKind::Space
6100 };
6101 let mut start_row = selection.start.row;
6102 let mut end_row = selection.end.row + 1;
6103
6104 // If a selection ends at the beginning of a line, don't indent
6105 // that last line.
6106 if selection.end.column == 0 && selection.end.row > selection.start.row {
6107 end_row -= 1;
6108 }
6109
6110 // Avoid re-indenting a row that has already been indented by a
6111 // previous selection, but still update this selection's column
6112 // to reflect that indentation.
6113 if delta_for_start_row > 0 {
6114 start_row += 1;
6115 selection.start.column += delta_for_start_row;
6116 if selection.end.row == selection.start.row {
6117 selection.end.column += delta_for_start_row;
6118 }
6119 }
6120
6121 let mut delta_for_end_row = 0;
6122 let has_multiple_rows = start_row + 1 != end_row;
6123 for row in start_row..end_row {
6124 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6125 let indent_delta = match (current_indent.kind, indent_kind) {
6126 (IndentKind::Space, IndentKind::Space) => {
6127 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6128 IndentSize::spaces(columns_to_next_tab_stop)
6129 }
6130 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6131 (_, IndentKind::Tab) => IndentSize::tab(),
6132 };
6133
6134 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6135 0
6136 } else {
6137 selection.start.column
6138 };
6139 let row_start = Point::new(row, start);
6140 edits.push((
6141 row_start..row_start,
6142 indent_delta.chars().collect::<String>(),
6143 ));
6144
6145 // Update this selection's endpoints to reflect the indentation.
6146 if row == selection.start.row {
6147 selection.start.column += indent_delta.len;
6148 }
6149 if row == selection.end.row {
6150 selection.end.column += indent_delta.len;
6151 delta_for_end_row = indent_delta.len;
6152 }
6153 }
6154
6155 if selection.start.row == selection.end.row {
6156 delta_for_start_row + delta_for_end_row
6157 } else {
6158 delta_for_end_row
6159 }
6160 }
6161
6162 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6163 if self.read_only(cx) {
6164 return;
6165 }
6166 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6167 let selections = self.selections.all::<Point>(cx);
6168 let mut deletion_ranges = Vec::new();
6169 let mut last_outdent = None;
6170 {
6171 let buffer = self.buffer.read(cx);
6172 let snapshot = buffer.snapshot(cx);
6173 for selection in &selections {
6174 let settings = buffer.settings_at(selection.start, cx);
6175 let tab_size = settings.tab_size.get();
6176 let mut rows = selection.spanned_rows(false, &display_map);
6177
6178 // Avoid re-outdenting a row that has already been outdented by a
6179 // previous selection.
6180 if let Some(last_row) = last_outdent {
6181 if last_row == rows.start {
6182 rows.start = rows.start.next_row();
6183 }
6184 }
6185 let has_multiple_rows = rows.len() > 1;
6186 for row in rows.iter_rows() {
6187 let indent_size = snapshot.indent_size_for_line(row);
6188 if indent_size.len > 0 {
6189 let deletion_len = match indent_size.kind {
6190 IndentKind::Space => {
6191 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6192 if columns_to_prev_tab_stop == 0 {
6193 tab_size
6194 } else {
6195 columns_to_prev_tab_stop
6196 }
6197 }
6198 IndentKind::Tab => 1,
6199 };
6200 let start = if has_multiple_rows
6201 || deletion_len > selection.start.column
6202 || indent_size.len < selection.start.column
6203 {
6204 0
6205 } else {
6206 selection.start.column - deletion_len
6207 };
6208 deletion_ranges.push(
6209 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6210 );
6211 last_outdent = Some(row);
6212 }
6213 }
6214 }
6215 }
6216
6217 self.transact(cx, |this, cx| {
6218 this.buffer.update(cx, |buffer, cx| {
6219 let empty_str: Arc<str> = Arc::default();
6220 buffer.edit(
6221 deletion_ranges
6222 .into_iter()
6223 .map(|range| (range, empty_str.clone())),
6224 None,
6225 cx,
6226 );
6227 });
6228 let selections = this.selections.all::<usize>(cx);
6229 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6230 });
6231 }
6232
6233 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6234 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6235 let selections = self.selections.all::<Point>(cx);
6236
6237 let mut new_cursors = Vec::new();
6238 let mut edit_ranges = Vec::new();
6239 let mut selections = selections.iter().peekable();
6240 while let Some(selection) = selections.next() {
6241 let mut rows = selection.spanned_rows(false, &display_map);
6242 let goal_display_column = selection.head().to_display_point(&display_map).column();
6243
6244 // Accumulate contiguous regions of rows that we want to delete.
6245 while let Some(next_selection) = selections.peek() {
6246 let next_rows = next_selection.spanned_rows(false, &display_map);
6247 if next_rows.start <= rows.end {
6248 rows.end = next_rows.end;
6249 selections.next().unwrap();
6250 } else {
6251 break;
6252 }
6253 }
6254
6255 let buffer = &display_map.buffer_snapshot;
6256 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6257 let edit_end;
6258 let cursor_buffer_row;
6259 if buffer.max_point().row >= rows.end.0 {
6260 // If there's a line after the range, delete the \n from the end of the row range
6261 // and position the cursor on the next line.
6262 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6263 cursor_buffer_row = rows.end;
6264 } else {
6265 // If there isn't a line after the range, delete the \n from the line before the
6266 // start of the row range and position the cursor there.
6267 edit_start = edit_start.saturating_sub(1);
6268 edit_end = buffer.len();
6269 cursor_buffer_row = rows.start.previous_row();
6270 }
6271
6272 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6273 *cursor.column_mut() =
6274 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6275
6276 new_cursors.push((
6277 selection.id,
6278 buffer.anchor_after(cursor.to_point(&display_map)),
6279 ));
6280 edit_ranges.push(edit_start..edit_end);
6281 }
6282
6283 self.transact(cx, |this, cx| {
6284 let buffer = this.buffer.update(cx, |buffer, cx| {
6285 let empty_str: Arc<str> = Arc::default();
6286 buffer.edit(
6287 edit_ranges
6288 .into_iter()
6289 .map(|range| (range, empty_str.clone())),
6290 None,
6291 cx,
6292 );
6293 buffer.snapshot(cx)
6294 });
6295 let new_selections = new_cursors
6296 .into_iter()
6297 .map(|(id, cursor)| {
6298 let cursor = cursor.to_point(&buffer);
6299 Selection {
6300 id,
6301 start: cursor,
6302 end: cursor,
6303 reversed: false,
6304 goal: SelectionGoal::None,
6305 }
6306 })
6307 .collect();
6308
6309 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6310 s.select(new_selections);
6311 });
6312 });
6313 }
6314
6315 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6316 if self.read_only(cx) {
6317 return;
6318 }
6319 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6320 for selection in self.selections.all::<Point>(cx) {
6321 let start = MultiBufferRow(selection.start.row);
6322 // Treat single line selections as if they include the next line. Otherwise this action
6323 // would do nothing for single line selections individual cursors.
6324 let end = if selection.start.row == selection.end.row {
6325 MultiBufferRow(selection.start.row + 1)
6326 } else {
6327 MultiBufferRow(selection.end.row)
6328 };
6329
6330 if let Some(last_row_range) = row_ranges.last_mut() {
6331 if start <= last_row_range.end {
6332 last_row_range.end = end;
6333 continue;
6334 }
6335 }
6336 row_ranges.push(start..end);
6337 }
6338
6339 let snapshot = self.buffer.read(cx).snapshot(cx);
6340 let mut cursor_positions = Vec::new();
6341 for row_range in &row_ranges {
6342 let anchor = snapshot.anchor_before(Point::new(
6343 row_range.end.previous_row().0,
6344 snapshot.line_len(row_range.end.previous_row()),
6345 ));
6346 cursor_positions.push(anchor..anchor);
6347 }
6348
6349 self.transact(cx, |this, cx| {
6350 for row_range in row_ranges.into_iter().rev() {
6351 for row in row_range.iter_rows().rev() {
6352 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6353 let next_line_row = row.next_row();
6354 let indent = snapshot.indent_size_for_line(next_line_row);
6355 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6356
6357 let replace = if snapshot.line_len(next_line_row) > indent.len {
6358 " "
6359 } else {
6360 ""
6361 };
6362
6363 this.buffer.update(cx, |buffer, cx| {
6364 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6365 });
6366 }
6367 }
6368
6369 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6370 s.select_anchor_ranges(cursor_positions)
6371 });
6372 });
6373 }
6374
6375 pub fn sort_lines_case_sensitive(
6376 &mut self,
6377 _: &SortLinesCaseSensitive,
6378 cx: &mut ViewContext<Self>,
6379 ) {
6380 self.manipulate_lines(cx, |lines| lines.sort())
6381 }
6382
6383 pub fn sort_lines_case_insensitive(
6384 &mut self,
6385 _: &SortLinesCaseInsensitive,
6386 cx: &mut ViewContext<Self>,
6387 ) {
6388 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6389 }
6390
6391 pub fn unique_lines_case_insensitive(
6392 &mut self,
6393 _: &UniqueLinesCaseInsensitive,
6394 cx: &mut ViewContext<Self>,
6395 ) {
6396 self.manipulate_lines(cx, |lines| {
6397 let mut seen = HashSet::default();
6398 lines.retain(|line| seen.insert(line.to_lowercase()));
6399 })
6400 }
6401
6402 pub fn unique_lines_case_sensitive(
6403 &mut self,
6404 _: &UniqueLinesCaseSensitive,
6405 cx: &mut ViewContext<Self>,
6406 ) {
6407 self.manipulate_lines(cx, |lines| {
6408 let mut seen = HashSet::default();
6409 lines.retain(|line| seen.insert(*line));
6410 })
6411 }
6412
6413 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6414 let mut revert_changes = HashMap::default();
6415 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6416 for hunk in hunks_for_rows(
6417 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6418 &multi_buffer_snapshot,
6419 ) {
6420 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6421 }
6422 if !revert_changes.is_empty() {
6423 self.transact(cx, |editor, cx| {
6424 editor.revert(revert_changes, cx);
6425 });
6426 }
6427 }
6428
6429 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6430 let Some(project) = self.project.clone() else {
6431 return;
6432 };
6433 self.reload(project, cx).detach_and_notify_err(cx);
6434 }
6435
6436 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6437 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6438 if !revert_changes.is_empty() {
6439 self.transact(cx, |editor, cx| {
6440 editor.revert(revert_changes, cx);
6441 });
6442 }
6443 }
6444
6445 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6446 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6447 let project_path = buffer.read(cx).project_path(cx)?;
6448 let project = self.project.as_ref()?.read(cx);
6449 let entry = project.entry_for_path(&project_path, cx)?;
6450 let parent = match &entry.canonical_path {
6451 Some(canonical_path) => canonical_path.to_path_buf(),
6452 None => project.absolute_path(&project_path, cx)?,
6453 }
6454 .parent()?
6455 .to_path_buf();
6456 Some(parent)
6457 }) {
6458 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6459 }
6460 }
6461
6462 fn gather_revert_changes(
6463 &mut self,
6464 selections: &[Selection<Anchor>],
6465 cx: &mut ViewContext<'_, Editor>,
6466 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6467 let mut revert_changes = HashMap::default();
6468 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6469 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6470 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6471 }
6472 revert_changes
6473 }
6474
6475 pub fn prepare_revert_change(
6476 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6477 multi_buffer: &Model<MultiBuffer>,
6478 hunk: &MultiBufferDiffHunk,
6479 cx: &AppContext,
6480 ) -> Option<()> {
6481 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6482 let buffer = buffer.read(cx);
6483 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6484 let buffer_snapshot = buffer.snapshot();
6485 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6486 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6487 probe
6488 .0
6489 .start
6490 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6491 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6492 }) {
6493 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6494 Some(())
6495 } else {
6496 None
6497 }
6498 }
6499
6500 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6501 self.manipulate_lines(cx, |lines| lines.reverse())
6502 }
6503
6504 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6505 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6506 }
6507
6508 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6509 where
6510 Fn: FnMut(&mut Vec<&str>),
6511 {
6512 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6513 let buffer = self.buffer.read(cx).snapshot(cx);
6514
6515 let mut edits = Vec::new();
6516
6517 let selections = self.selections.all::<Point>(cx);
6518 let mut selections = selections.iter().peekable();
6519 let mut contiguous_row_selections = Vec::new();
6520 let mut new_selections = Vec::new();
6521 let mut added_lines = 0;
6522 let mut removed_lines = 0;
6523
6524 while let Some(selection) = selections.next() {
6525 let (start_row, end_row) = consume_contiguous_rows(
6526 &mut contiguous_row_selections,
6527 selection,
6528 &display_map,
6529 &mut selections,
6530 );
6531
6532 let start_point = Point::new(start_row.0, 0);
6533 let end_point = Point::new(
6534 end_row.previous_row().0,
6535 buffer.line_len(end_row.previous_row()),
6536 );
6537 let text = buffer
6538 .text_for_range(start_point..end_point)
6539 .collect::<String>();
6540
6541 let mut lines = text.split('\n').collect_vec();
6542
6543 let lines_before = lines.len();
6544 callback(&mut lines);
6545 let lines_after = lines.len();
6546
6547 edits.push((start_point..end_point, lines.join("\n")));
6548
6549 // Selections must change based on added and removed line count
6550 let start_row =
6551 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6552 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6553 new_selections.push(Selection {
6554 id: selection.id,
6555 start: start_row,
6556 end: end_row,
6557 goal: SelectionGoal::None,
6558 reversed: selection.reversed,
6559 });
6560
6561 if lines_after > lines_before {
6562 added_lines += lines_after - lines_before;
6563 } else if lines_before > lines_after {
6564 removed_lines += lines_before - lines_after;
6565 }
6566 }
6567
6568 self.transact(cx, |this, cx| {
6569 let buffer = this.buffer.update(cx, |buffer, cx| {
6570 buffer.edit(edits, None, cx);
6571 buffer.snapshot(cx)
6572 });
6573
6574 // Recalculate offsets on newly edited buffer
6575 let new_selections = new_selections
6576 .iter()
6577 .map(|s| {
6578 let start_point = Point::new(s.start.0, 0);
6579 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6580 Selection {
6581 id: s.id,
6582 start: buffer.point_to_offset(start_point),
6583 end: buffer.point_to_offset(end_point),
6584 goal: s.goal,
6585 reversed: s.reversed,
6586 }
6587 })
6588 .collect();
6589
6590 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6591 s.select(new_selections);
6592 });
6593
6594 this.request_autoscroll(Autoscroll::fit(), cx);
6595 });
6596 }
6597
6598 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6599 self.manipulate_text(cx, |text| text.to_uppercase())
6600 }
6601
6602 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6603 self.manipulate_text(cx, |text| text.to_lowercase())
6604 }
6605
6606 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6607 self.manipulate_text(cx, |text| {
6608 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6609 // https://github.com/rutrum/convert-case/issues/16
6610 text.split('\n')
6611 .map(|line| line.to_case(Case::Title))
6612 .join("\n")
6613 })
6614 }
6615
6616 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6617 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6618 }
6619
6620 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6621 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6622 }
6623
6624 pub fn convert_to_upper_camel_case(
6625 &mut self,
6626 _: &ConvertToUpperCamelCase,
6627 cx: &mut ViewContext<Self>,
6628 ) {
6629 self.manipulate_text(cx, |text| {
6630 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6631 // https://github.com/rutrum/convert-case/issues/16
6632 text.split('\n')
6633 .map(|line| line.to_case(Case::UpperCamel))
6634 .join("\n")
6635 })
6636 }
6637
6638 pub fn convert_to_lower_camel_case(
6639 &mut self,
6640 _: &ConvertToLowerCamelCase,
6641 cx: &mut ViewContext<Self>,
6642 ) {
6643 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6644 }
6645
6646 pub fn convert_to_opposite_case(
6647 &mut self,
6648 _: &ConvertToOppositeCase,
6649 cx: &mut ViewContext<Self>,
6650 ) {
6651 self.manipulate_text(cx, |text| {
6652 text.chars()
6653 .fold(String::with_capacity(text.len()), |mut t, c| {
6654 if c.is_uppercase() {
6655 t.extend(c.to_lowercase());
6656 } else {
6657 t.extend(c.to_uppercase());
6658 }
6659 t
6660 })
6661 })
6662 }
6663
6664 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6665 where
6666 Fn: FnMut(&str) -> String,
6667 {
6668 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6669 let buffer = self.buffer.read(cx).snapshot(cx);
6670
6671 let mut new_selections = Vec::new();
6672 let mut edits = Vec::new();
6673 let mut selection_adjustment = 0i32;
6674
6675 for selection in self.selections.all::<usize>(cx) {
6676 let selection_is_empty = selection.is_empty();
6677
6678 let (start, end) = if selection_is_empty {
6679 let word_range = movement::surrounding_word(
6680 &display_map,
6681 selection.start.to_display_point(&display_map),
6682 );
6683 let start = word_range.start.to_offset(&display_map, Bias::Left);
6684 let end = word_range.end.to_offset(&display_map, Bias::Left);
6685 (start, end)
6686 } else {
6687 (selection.start, selection.end)
6688 };
6689
6690 let text = buffer.text_for_range(start..end).collect::<String>();
6691 let old_length = text.len() as i32;
6692 let text = callback(&text);
6693
6694 new_selections.push(Selection {
6695 start: (start as i32 - selection_adjustment) as usize,
6696 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6697 goal: SelectionGoal::None,
6698 ..selection
6699 });
6700
6701 selection_adjustment += old_length - text.len() as i32;
6702
6703 edits.push((start..end, text));
6704 }
6705
6706 self.transact(cx, |this, cx| {
6707 this.buffer.update(cx, |buffer, cx| {
6708 buffer.edit(edits, None, cx);
6709 });
6710
6711 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6712 s.select(new_selections);
6713 });
6714
6715 this.request_autoscroll(Autoscroll::fit(), cx);
6716 });
6717 }
6718
6719 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6720 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6721 let buffer = &display_map.buffer_snapshot;
6722 let selections = self.selections.all::<Point>(cx);
6723
6724 let mut edits = Vec::new();
6725 let mut selections_iter = selections.iter().peekable();
6726 while let Some(selection) = selections_iter.next() {
6727 // Avoid duplicating the same lines twice.
6728 let mut rows = selection.spanned_rows(false, &display_map);
6729
6730 while let Some(next_selection) = selections_iter.peek() {
6731 let next_rows = next_selection.spanned_rows(false, &display_map);
6732 if next_rows.start < rows.end {
6733 rows.end = next_rows.end;
6734 selections_iter.next().unwrap();
6735 } else {
6736 break;
6737 }
6738 }
6739
6740 // Copy the text from the selected row region and splice it either at the start
6741 // or end of the region.
6742 let start = Point::new(rows.start.0, 0);
6743 let end = Point::new(
6744 rows.end.previous_row().0,
6745 buffer.line_len(rows.end.previous_row()),
6746 );
6747 let text = buffer
6748 .text_for_range(start..end)
6749 .chain(Some("\n"))
6750 .collect::<String>();
6751 let insert_location = if upwards {
6752 Point::new(rows.end.0, 0)
6753 } else {
6754 start
6755 };
6756 edits.push((insert_location..insert_location, text));
6757 }
6758
6759 self.transact(cx, |this, cx| {
6760 this.buffer.update(cx, |buffer, cx| {
6761 buffer.edit(edits, None, cx);
6762 });
6763
6764 this.request_autoscroll(Autoscroll::fit(), cx);
6765 });
6766 }
6767
6768 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6769 self.duplicate_line(true, cx);
6770 }
6771
6772 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6773 self.duplicate_line(false, cx);
6774 }
6775
6776 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6777 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6778 let buffer = self.buffer.read(cx).snapshot(cx);
6779
6780 let mut edits = Vec::new();
6781 let mut unfold_ranges = Vec::new();
6782 let mut refold_ranges = Vec::new();
6783
6784 let selections = self.selections.all::<Point>(cx);
6785 let mut selections = selections.iter().peekable();
6786 let mut contiguous_row_selections = Vec::new();
6787 let mut new_selections = Vec::new();
6788
6789 while let Some(selection) = selections.next() {
6790 // Find all the selections that span a contiguous row range
6791 let (start_row, end_row) = consume_contiguous_rows(
6792 &mut contiguous_row_selections,
6793 selection,
6794 &display_map,
6795 &mut selections,
6796 );
6797
6798 // Move the text spanned by the row range to be before the line preceding the row range
6799 if start_row.0 > 0 {
6800 let range_to_move = Point::new(
6801 start_row.previous_row().0,
6802 buffer.line_len(start_row.previous_row()),
6803 )
6804 ..Point::new(
6805 end_row.previous_row().0,
6806 buffer.line_len(end_row.previous_row()),
6807 );
6808 let insertion_point = display_map
6809 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6810 .0;
6811
6812 // Don't move lines across excerpts
6813 if buffer
6814 .excerpt_boundaries_in_range((
6815 Bound::Excluded(insertion_point),
6816 Bound::Included(range_to_move.end),
6817 ))
6818 .next()
6819 .is_none()
6820 {
6821 let text = buffer
6822 .text_for_range(range_to_move.clone())
6823 .flat_map(|s| s.chars())
6824 .skip(1)
6825 .chain(['\n'])
6826 .collect::<String>();
6827
6828 edits.push((
6829 buffer.anchor_after(range_to_move.start)
6830 ..buffer.anchor_before(range_to_move.end),
6831 String::new(),
6832 ));
6833 let insertion_anchor = buffer.anchor_after(insertion_point);
6834 edits.push((insertion_anchor..insertion_anchor, text));
6835
6836 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6837
6838 // Move selections up
6839 new_selections.extend(contiguous_row_selections.drain(..).map(
6840 |mut selection| {
6841 selection.start.row -= row_delta;
6842 selection.end.row -= row_delta;
6843 selection
6844 },
6845 ));
6846
6847 // Move folds up
6848 unfold_ranges.push(range_to_move.clone());
6849 for fold in display_map.folds_in_range(
6850 buffer.anchor_before(range_to_move.start)
6851 ..buffer.anchor_after(range_to_move.end),
6852 ) {
6853 let mut start = fold.range.start.to_point(&buffer);
6854 let mut end = fold.range.end.to_point(&buffer);
6855 start.row -= row_delta;
6856 end.row -= row_delta;
6857 refold_ranges.push((start..end, fold.placeholder.clone()));
6858 }
6859 }
6860 }
6861
6862 // If we didn't move line(s), preserve the existing selections
6863 new_selections.append(&mut contiguous_row_selections);
6864 }
6865
6866 self.transact(cx, |this, cx| {
6867 this.unfold_ranges(&unfold_ranges, true, true, cx);
6868 this.buffer.update(cx, |buffer, cx| {
6869 for (range, text) in edits {
6870 buffer.edit([(range, text)], None, cx);
6871 }
6872 });
6873 this.fold_ranges(refold_ranges, true, cx);
6874 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6875 s.select(new_selections);
6876 })
6877 });
6878 }
6879
6880 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6881 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6882 let buffer = self.buffer.read(cx).snapshot(cx);
6883
6884 let mut edits = Vec::new();
6885 let mut unfold_ranges = Vec::new();
6886 let mut refold_ranges = Vec::new();
6887
6888 let selections = self.selections.all::<Point>(cx);
6889 let mut selections = selections.iter().peekable();
6890 let mut contiguous_row_selections = Vec::new();
6891 let mut new_selections = Vec::new();
6892
6893 while let Some(selection) = selections.next() {
6894 // Find all the selections that span a contiguous row range
6895 let (start_row, end_row) = consume_contiguous_rows(
6896 &mut contiguous_row_selections,
6897 selection,
6898 &display_map,
6899 &mut selections,
6900 );
6901
6902 // Move the text spanned by the row range to be after the last line of the row range
6903 if end_row.0 <= buffer.max_point().row {
6904 let range_to_move =
6905 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6906 let insertion_point = display_map
6907 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6908 .0;
6909
6910 // Don't move lines across excerpt boundaries
6911 if buffer
6912 .excerpt_boundaries_in_range((
6913 Bound::Excluded(range_to_move.start),
6914 Bound::Included(insertion_point),
6915 ))
6916 .next()
6917 .is_none()
6918 {
6919 let mut text = String::from("\n");
6920 text.extend(buffer.text_for_range(range_to_move.clone()));
6921 text.pop(); // Drop trailing newline
6922 edits.push((
6923 buffer.anchor_after(range_to_move.start)
6924 ..buffer.anchor_before(range_to_move.end),
6925 String::new(),
6926 ));
6927 let insertion_anchor = buffer.anchor_after(insertion_point);
6928 edits.push((insertion_anchor..insertion_anchor, text));
6929
6930 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6931
6932 // Move selections down
6933 new_selections.extend(contiguous_row_selections.drain(..).map(
6934 |mut selection| {
6935 selection.start.row += row_delta;
6936 selection.end.row += row_delta;
6937 selection
6938 },
6939 ));
6940
6941 // Move folds down
6942 unfold_ranges.push(range_to_move.clone());
6943 for fold in display_map.folds_in_range(
6944 buffer.anchor_before(range_to_move.start)
6945 ..buffer.anchor_after(range_to_move.end),
6946 ) {
6947 let mut start = fold.range.start.to_point(&buffer);
6948 let mut end = fold.range.end.to_point(&buffer);
6949 start.row += row_delta;
6950 end.row += row_delta;
6951 refold_ranges.push((start..end, fold.placeholder.clone()));
6952 }
6953 }
6954 }
6955
6956 // If we didn't move line(s), preserve the existing selections
6957 new_selections.append(&mut contiguous_row_selections);
6958 }
6959
6960 self.transact(cx, |this, cx| {
6961 this.unfold_ranges(&unfold_ranges, true, true, cx);
6962 this.buffer.update(cx, |buffer, cx| {
6963 for (range, text) in edits {
6964 buffer.edit([(range, text)], None, cx);
6965 }
6966 });
6967 this.fold_ranges(refold_ranges, true, cx);
6968 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6969 });
6970 }
6971
6972 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6973 let text_layout_details = &self.text_layout_details(cx);
6974 self.transact(cx, |this, cx| {
6975 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6976 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6977 let line_mode = s.line_mode;
6978 s.move_with(|display_map, selection| {
6979 if !selection.is_empty() || line_mode {
6980 return;
6981 }
6982
6983 let mut head = selection.head();
6984 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6985 if head.column() == display_map.line_len(head.row()) {
6986 transpose_offset = display_map
6987 .buffer_snapshot
6988 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6989 }
6990
6991 if transpose_offset == 0 {
6992 return;
6993 }
6994
6995 *head.column_mut() += 1;
6996 head = display_map.clip_point(head, Bias::Right);
6997 let goal = SelectionGoal::HorizontalPosition(
6998 display_map
6999 .x_for_display_point(head, text_layout_details)
7000 .into(),
7001 );
7002 selection.collapse_to(head, goal);
7003
7004 let transpose_start = display_map
7005 .buffer_snapshot
7006 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7007 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
7008 let transpose_end = display_map
7009 .buffer_snapshot
7010 .clip_offset(transpose_offset + 1, Bias::Right);
7011 if let Some(ch) =
7012 display_map.buffer_snapshot.chars_at(transpose_start).next()
7013 {
7014 edits.push((transpose_start..transpose_offset, String::new()));
7015 edits.push((transpose_end..transpose_end, ch.to_string()));
7016 }
7017 }
7018 });
7019 edits
7020 });
7021 this.buffer
7022 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7023 let selections = this.selections.all::<usize>(cx);
7024 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7025 s.select(selections);
7026 });
7027 });
7028 }
7029
7030 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
7031 self.rewrap_impl(IsVimMode::No, cx)
7032 }
7033
7034 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
7035 let buffer = self.buffer.read(cx).snapshot(cx);
7036 let selections = self.selections.all::<Point>(cx);
7037 let mut selections = selections.iter().peekable();
7038
7039 let mut edits = Vec::new();
7040 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
7041
7042 while let Some(selection) = selections.next() {
7043 let mut start_row = selection.start.row;
7044 let mut end_row = selection.end.row;
7045
7046 // Skip selections that overlap with a range that has already been rewrapped.
7047 let selection_range = start_row..end_row;
7048 if rewrapped_row_ranges
7049 .iter()
7050 .any(|range| range.overlaps(&selection_range))
7051 {
7052 continue;
7053 }
7054
7055 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
7056
7057 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7058 match language_scope.language_name().0.as_ref() {
7059 "Markdown" | "Plain Text" => {
7060 should_rewrap = true;
7061 }
7062 _ => {}
7063 }
7064 }
7065
7066 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
7067
7068 // Since not all lines in the selection may be at the same indent
7069 // level, choose the indent size that is the most common between all
7070 // of the lines.
7071 //
7072 // If there is a tie, we use the deepest indent.
7073 let (indent_size, indent_end) = {
7074 let mut indent_size_occurrences = HashMap::default();
7075 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7076
7077 for row in start_row..=end_row {
7078 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7079 rows_by_indent_size.entry(indent).or_default().push(row);
7080 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7081 }
7082
7083 let indent_size = indent_size_occurrences
7084 .into_iter()
7085 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
7086 .map(|(indent, _)| indent)
7087 .unwrap_or_default();
7088 let row = rows_by_indent_size[&indent_size][0];
7089 let indent_end = Point::new(row, indent_size.len);
7090
7091 (indent_size, indent_end)
7092 };
7093
7094 let mut line_prefix = indent_size.chars().collect::<String>();
7095
7096 if let Some(comment_prefix) =
7097 buffer
7098 .language_scope_at(selection.head())
7099 .and_then(|language| {
7100 language
7101 .line_comment_prefixes()
7102 .iter()
7103 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7104 .cloned()
7105 })
7106 {
7107 line_prefix.push_str(&comment_prefix);
7108 should_rewrap = true;
7109 }
7110
7111 if !should_rewrap {
7112 continue;
7113 }
7114
7115 if selection.is_empty() {
7116 'expand_upwards: while start_row > 0 {
7117 let prev_row = start_row - 1;
7118 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7119 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7120 {
7121 start_row = prev_row;
7122 } else {
7123 break 'expand_upwards;
7124 }
7125 }
7126
7127 'expand_downwards: while end_row < buffer.max_point().row {
7128 let next_row = end_row + 1;
7129 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7130 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7131 {
7132 end_row = next_row;
7133 } else {
7134 break 'expand_downwards;
7135 }
7136 }
7137 }
7138
7139 let start = Point::new(start_row, 0);
7140 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7141 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7142 let Some(lines_without_prefixes) = selection_text
7143 .lines()
7144 .map(|line| {
7145 line.strip_prefix(&line_prefix)
7146 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7147 .ok_or_else(|| {
7148 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7149 })
7150 })
7151 .collect::<Result<Vec<_>, _>>()
7152 .log_err()
7153 else {
7154 continue;
7155 };
7156
7157 let wrap_column = buffer
7158 .settings_at(Point::new(start_row, 0), cx)
7159 .preferred_line_length as usize;
7160 let wrapped_text = wrap_with_prefix(
7161 line_prefix,
7162 lines_without_prefixes.join(" "),
7163 wrap_column,
7164 tab_size,
7165 );
7166
7167 // TODO: should always use char-based diff while still supporting cursor behavior that
7168 // matches vim.
7169 let diff = match is_vim_mode {
7170 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
7171 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
7172 };
7173 let mut offset = start.to_offset(&buffer);
7174 let mut moved_since_edit = true;
7175
7176 for change in diff.iter_all_changes() {
7177 let value = change.value();
7178 match change.tag() {
7179 ChangeTag::Equal => {
7180 offset += value.len();
7181 moved_since_edit = true;
7182 }
7183 ChangeTag::Delete => {
7184 let start = buffer.anchor_after(offset);
7185 let end = buffer.anchor_before(offset + value.len());
7186
7187 if moved_since_edit {
7188 edits.push((start..end, String::new()));
7189 } else {
7190 edits.last_mut().unwrap().0.end = end;
7191 }
7192
7193 offset += value.len();
7194 moved_since_edit = false;
7195 }
7196 ChangeTag::Insert => {
7197 if moved_since_edit {
7198 let anchor = buffer.anchor_after(offset);
7199 edits.push((anchor..anchor, value.to_string()));
7200 } else {
7201 edits.last_mut().unwrap().1.push_str(value);
7202 }
7203
7204 moved_since_edit = false;
7205 }
7206 }
7207 }
7208
7209 rewrapped_row_ranges.push(start_row..=end_row);
7210 }
7211
7212 self.buffer
7213 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7214 }
7215
7216 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7217 let mut text = String::new();
7218 let buffer = self.buffer.read(cx).snapshot(cx);
7219 let mut selections = self.selections.all::<Point>(cx);
7220 let mut clipboard_selections = Vec::with_capacity(selections.len());
7221 {
7222 let max_point = buffer.max_point();
7223 let mut is_first = true;
7224 for selection in &mut selections {
7225 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7226 if is_entire_line {
7227 selection.start = Point::new(selection.start.row, 0);
7228 if !selection.is_empty() && selection.end.column == 0 {
7229 selection.end = cmp::min(max_point, selection.end);
7230 } else {
7231 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7232 }
7233 selection.goal = SelectionGoal::None;
7234 }
7235 if is_first {
7236 is_first = false;
7237 } else {
7238 text += "\n";
7239 }
7240 let mut len = 0;
7241 for chunk in buffer.text_for_range(selection.start..selection.end) {
7242 text.push_str(chunk);
7243 len += chunk.len();
7244 }
7245 clipboard_selections.push(ClipboardSelection {
7246 len,
7247 is_entire_line,
7248 first_line_indent: buffer
7249 .indent_size_for_line(MultiBufferRow(selection.start.row))
7250 .len,
7251 });
7252 }
7253 }
7254
7255 self.transact(cx, |this, cx| {
7256 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7257 s.select(selections);
7258 });
7259 this.insert("", cx);
7260 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7261 text,
7262 clipboard_selections,
7263 ));
7264 });
7265 }
7266
7267 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7268 let selections = self.selections.all::<Point>(cx);
7269 let buffer = self.buffer.read(cx).read(cx);
7270 let mut text = String::new();
7271
7272 let mut clipboard_selections = Vec::with_capacity(selections.len());
7273 {
7274 let max_point = buffer.max_point();
7275 let mut is_first = true;
7276 for selection in selections.iter() {
7277 let mut start = selection.start;
7278 let mut end = selection.end;
7279 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7280 if is_entire_line {
7281 start = Point::new(start.row, 0);
7282 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7283 }
7284 if is_first {
7285 is_first = false;
7286 } else {
7287 text += "\n";
7288 }
7289 let mut len = 0;
7290 for chunk in buffer.text_for_range(start..end) {
7291 text.push_str(chunk);
7292 len += chunk.len();
7293 }
7294 clipboard_selections.push(ClipboardSelection {
7295 len,
7296 is_entire_line,
7297 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7298 });
7299 }
7300 }
7301
7302 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7303 text,
7304 clipboard_selections,
7305 ));
7306 }
7307
7308 pub fn do_paste(
7309 &mut self,
7310 text: &String,
7311 clipboard_selections: Option<Vec<ClipboardSelection>>,
7312 handle_entire_lines: bool,
7313 cx: &mut ViewContext<Self>,
7314 ) {
7315 if self.read_only(cx) {
7316 return;
7317 }
7318
7319 let clipboard_text = Cow::Borrowed(text);
7320
7321 self.transact(cx, |this, cx| {
7322 if let Some(mut clipboard_selections) = clipboard_selections {
7323 let old_selections = this.selections.all::<usize>(cx);
7324 let all_selections_were_entire_line =
7325 clipboard_selections.iter().all(|s| s.is_entire_line);
7326 let first_selection_indent_column =
7327 clipboard_selections.first().map(|s| s.first_line_indent);
7328 if clipboard_selections.len() != old_selections.len() {
7329 clipboard_selections.drain(..);
7330 }
7331 let cursor_offset = this.selections.last::<usize>(cx).head();
7332 let mut auto_indent_on_paste = true;
7333
7334 this.buffer.update(cx, |buffer, cx| {
7335 let snapshot = buffer.read(cx);
7336 auto_indent_on_paste =
7337 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7338
7339 let mut start_offset = 0;
7340 let mut edits = Vec::new();
7341 let mut original_indent_columns = Vec::new();
7342 for (ix, selection) in old_selections.iter().enumerate() {
7343 let to_insert;
7344 let entire_line;
7345 let original_indent_column;
7346 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7347 let end_offset = start_offset + clipboard_selection.len;
7348 to_insert = &clipboard_text[start_offset..end_offset];
7349 entire_line = clipboard_selection.is_entire_line;
7350 start_offset = end_offset + 1;
7351 original_indent_column = Some(clipboard_selection.first_line_indent);
7352 } else {
7353 to_insert = clipboard_text.as_str();
7354 entire_line = all_selections_were_entire_line;
7355 original_indent_column = first_selection_indent_column
7356 }
7357
7358 // If the corresponding selection was empty when this slice of the
7359 // clipboard text was written, then the entire line containing the
7360 // selection was copied. If this selection is also currently empty,
7361 // then paste the line before the current line of the buffer.
7362 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7363 let column = selection.start.to_point(&snapshot).column as usize;
7364 let line_start = selection.start - column;
7365 line_start..line_start
7366 } else {
7367 selection.range()
7368 };
7369
7370 edits.push((range, to_insert));
7371 original_indent_columns.extend(original_indent_column);
7372 }
7373 drop(snapshot);
7374
7375 buffer.edit(
7376 edits,
7377 if auto_indent_on_paste {
7378 Some(AutoindentMode::Block {
7379 original_indent_columns,
7380 })
7381 } else {
7382 None
7383 },
7384 cx,
7385 );
7386 });
7387
7388 let selections = this.selections.all::<usize>(cx);
7389 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7390 } else {
7391 this.insert(&clipboard_text, cx);
7392 }
7393 });
7394 }
7395
7396 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7397 if let Some(item) = cx.read_from_clipboard() {
7398 let entries = item.entries();
7399
7400 match entries.first() {
7401 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7402 // of all the pasted entries.
7403 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7404 .do_paste(
7405 clipboard_string.text(),
7406 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7407 true,
7408 cx,
7409 ),
7410 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7411 }
7412 }
7413 }
7414
7415 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7416 if self.read_only(cx) {
7417 return;
7418 }
7419
7420 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7421 if let Some((selections, _)) =
7422 self.selection_history.transaction(transaction_id).cloned()
7423 {
7424 self.change_selections(None, cx, |s| {
7425 s.select_anchors(selections.to_vec());
7426 });
7427 }
7428 self.request_autoscroll(Autoscroll::fit(), cx);
7429 self.unmark_text(cx);
7430 self.refresh_inline_completion(true, false, cx);
7431 cx.emit(EditorEvent::Edited { transaction_id });
7432 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7433 }
7434 }
7435
7436 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7437 if self.read_only(cx) {
7438 return;
7439 }
7440
7441 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7442 if let Some((_, Some(selections))) =
7443 self.selection_history.transaction(transaction_id).cloned()
7444 {
7445 self.change_selections(None, cx, |s| {
7446 s.select_anchors(selections.to_vec());
7447 });
7448 }
7449 self.request_autoscroll(Autoscroll::fit(), cx);
7450 self.unmark_text(cx);
7451 self.refresh_inline_completion(true, false, cx);
7452 cx.emit(EditorEvent::Edited { transaction_id });
7453 }
7454 }
7455
7456 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7457 self.buffer
7458 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7459 }
7460
7461 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7462 self.buffer
7463 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7464 }
7465
7466 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7467 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7468 let line_mode = s.line_mode;
7469 s.move_with(|map, selection| {
7470 let cursor = if selection.is_empty() && !line_mode {
7471 movement::left(map, selection.start)
7472 } else {
7473 selection.start
7474 };
7475 selection.collapse_to(cursor, SelectionGoal::None);
7476 });
7477 })
7478 }
7479
7480 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7481 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7482 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7483 })
7484 }
7485
7486 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7487 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7488 let line_mode = s.line_mode;
7489 s.move_with(|map, selection| {
7490 let cursor = if selection.is_empty() && !line_mode {
7491 movement::right(map, selection.end)
7492 } else {
7493 selection.end
7494 };
7495 selection.collapse_to(cursor, SelectionGoal::None)
7496 });
7497 })
7498 }
7499
7500 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7501 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7502 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7503 })
7504 }
7505
7506 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7507 if self.take_rename(true, cx).is_some() {
7508 return;
7509 }
7510
7511 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7512 cx.propagate();
7513 return;
7514 }
7515
7516 let text_layout_details = &self.text_layout_details(cx);
7517 let selection_count = self.selections.count();
7518 let first_selection = self.selections.first_anchor();
7519
7520 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7521 let line_mode = s.line_mode;
7522 s.move_with(|map, selection| {
7523 if !selection.is_empty() && !line_mode {
7524 selection.goal = SelectionGoal::None;
7525 }
7526 let (cursor, goal) = movement::up(
7527 map,
7528 selection.start,
7529 selection.goal,
7530 false,
7531 text_layout_details,
7532 );
7533 selection.collapse_to(cursor, goal);
7534 });
7535 });
7536
7537 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7538 {
7539 cx.propagate();
7540 }
7541 }
7542
7543 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7544 if self.take_rename(true, cx).is_some() {
7545 return;
7546 }
7547
7548 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7549 cx.propagate();
7550 return;
7551 }
7552
7553 let text_layout_details = &self.text_layout_details(cx);
7554
7555 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7556 let line_mode = s.line_mode;
7557 s.move_with(|map, selection| {
7558 if !selection.is_empty() && !line_mode {
7559 selection.goal = SelectionGoal::None;
7560 }
7561 let (cursor, goal) = movement::up_by_rows(
7562 map,
7563 selection.start,
7564 action.lines,
7565 selection.goal,
7566 false,
7567 text_layout_details,
7568 );
7569 selection.collapse_to(cursor, goal);
7570 });
7571 })
7572 }
7573
7574 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7575 if self.take_rename(true, cx).is_some() {
7576 return;
7577 }
7578
7579 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7580 cx.propagate();
7581 return;
7582 }
7583
7584 let text_layout_details = &self.text_layout_details(cx);
7585
7586 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7587 let line_mode = s.line_mode;
7588 s.move_with(|map, selection| {
7589 if !selection.is_empty() && !line_mode {
7590 selection.goal = SelectionGoal::None;
7591 }
7592 let (cursor, goal) = movement::down_by_rows(
7593 map,
7594 selection.start,
7595 action.lines,
7596 selection.goal,
7597 false,
7598 text_layout_details,
7599 );
7600 selection.collapse_to(cursor, goal);
7601 });
7602 })
7603 }
7604
7605 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7606 let text_layout_details = &self.text_layout_details(cx);
7607 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7608 s.move_heads_with(|map, head, goal| {
7609 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7610 })
7611 })
7612 }
7613
7614 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7615 let text_layout_details = &self.text_layout_details(cx);
7616 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7617 s.move_heads_with(|map, head, goal| {
7618 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7619 })
7620 })
7621 }
7622
7623 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7624 let Some(row_count) = self.visible_row_count() else {
7625 return;
7626 };
7627
7628 let text_layout_details = &self.text_layout_details(cx);
7629
7630 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7631 s.move_heads_with(|map, head, goal| {
7632 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7633 })
7634 })
7635 }
7636
7637 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7638 if self.take_rename(true, cx).is_some() {
7639 return;
7640 }
7641
7642 if self
7643 .context_menu
7644 .write()
7645 .as_mut()
7646 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7647 .unwrap_or(false)
7648 {
7649 return;
7650 }
7651
7652 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7653 cx.propagate();
7654 return;
7655 }
7656
7657 let Some(row_count) = self.visible_row_count() else {
7658 return;
7659 };
7660
7661 let autoscroll = if action.center_cursor {
7662 Autoscroll::center()
7663 } else {
7664 Autoscroll::fit()
7665 };
7666
7667 let text_layout_details = &self.text_layout_details(cx);
7668
7669 self.change_selections(Some(autoscroll), cx, |s| {
7670 let line_mode = s.line_mode;
7671 s.move_with(|map, selection| {
7672 if !selection.is_empty() && !line_mode {
7673 selection.goal = SelectionGoal::None;
7674 }
7675 let (cursor, goal) = movement::up_by_rows(
7676 map,
7677 selection.end,
7678 row_count,
7679 selection.goal,
7680 false,
7681 text_layout_details,
7682 );
7683 selection.collapse_to(cursor, goal);
7684 });
7685 });
7686 }
7687
7688 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7689 let text_layout_details = &self.text_layout_details(cx);
7690 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7691 s.move_heads_with(|map, head, goal| {
7692 movement::up(map, head, goal, false, text_layout_details)
7693 })
7694 })
7695 }
7696
7697 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7698 self.take_rename(true, cx);
7699
7700 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7701 cx.propagate();
7702 return;
7703 }
7704
7705 let text_layout_details = &self.text_layout_details(cx);
7706 let selection_count = self.selections.count();
7707 let first_selection = self.selections.first_anchor();
7708
7709 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7710 let line_mode = s.line_mode;
7711 s.move_with(|map, selection| {
7712 if !selection.is_empty() && !line_mode {
7713 selection.goal = SelectionGoal::None;
7714 }
7715 let (cursor, goal) = movement::down(
7716 map,
7717 selection.end,
7718 selection.goal,
7719 false,
7720 text_layout_details,
7721 );
7722 selection.collapse_to(cursor, goal);
7723 });
7724 });
7725
7726 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7727 {
7728 cx.propagate();
7729 }
7730 }
7731
7732 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7733 let Some(row_count) = self.visible_row_count() else {
7734 return;
7735 };
7736
7737 let text_layout_details = &self.text_layout_details(cx);
7738
7739 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7740 s.move_heads_with(|map, head, goal| {
7741 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7742 })
7743 })
7744 }
7745
7746 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7747 if self.take_rename(true, cx).is_some() {
7748 return;
7749 }
7750
7751 if self
7752 .context_menu
7753 .write()
7754 .as_mut()
7755 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7756 .unwrap_or(false)
7757 {
7758 return;
7759 }
7760
7761 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7762 cx.propagate();
7763 return;
7764 }
7765
7766 let Some(row_count) = self.visible_row_count() else {
7767 return;
7768 };
7769
7770 let autoscroll = if action.center_cursor {
7771 Autoscroll::center()
7772 } else {
7773 Autoscroll::fit()
7774 };
7775
7776 let text_layout_details = &self.text_layout_details(cx);
7777 self.change_selections(Some(autoscroll), cx, |s| {
7778 let line_mode = s.line_mode;
7779 s.move_with(|map, selection| {
7780 if !selection.is_empty() && !line_mode {
7781 selection.goal = SelectionGoal::None;
7782 }
7783 let (cursor, goal) = movement::down_by_rows(
7784 map,
7785 selection.end,
7786 row_count,
7787 selection.goal,
7788 false,
7789 text_layout_details,
7790 );
7791 selection.collapse_to(cursor, goal);
7792 });
7793 });
7794 }
7795
7796 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7797 let text_layout_details = &self.text_layout_details(cx);
7798 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7799 s.move_heads_with(|map, head, goal| {
7800 movement::down(map, head, goal, false, text_layout_details)
7801 })
7802 });
7803 }
7804
7805 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7806 if let Some(context_menu) = self.context_menu.write().as_mut() {
7807 context_menu.select_first(self.completion_provider.as_deref(), cx);
7808 }
7809 }
7810
7811 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7812 if let Some(context_menu) = self.context_menu.write().as_mut() {
7813 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7814 }
7815 }
7816
7817 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7818 if let Some(context_menu) = self.context_menu.write().as_mut() {
7819 context_menu.select_next(self.completion_provider.as_deref(), cx);
7820 }
7821 }
7822
7823 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7824 if let Some(context_menu) = self.context_menu.write().as_mut() {
7825 context_menu.select_last(self.completion_provider.as_deref(), cx);
7826 }
7827 }
7828
7829 pub fn move_to_previous_word_start(
7830 &mut self,
7831 _: &MoveToPreviousWordStart,
7832 cx: &mut ViewContext<Self>,
7833 ) {
7834 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7835 s.move_cursors_with(|map, head, _| {
7836 (
7837 movement::previous_word_start(map, head),
7838 SelectionGoal::None,
7839 )
7840 });
7841 })
7842 }
7843
7844 pub fn move_to_previous_subword_start(
7845 &mut self,
7846 _: &MoveToPreviousSubwordStart,
7847 cx: &mut ViewContext<Self>,
7848 ) {
7849 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7850 s.move_cursors_with(|map, head, _| {
7851 (
7852 movement::previous_subword_start(map, head),
7853 SelectionGoal::None,
7854 )
7855 });
7856 })
7857 }
7858
7859 pub fn select_to_previous_word_start(
7860 &mut self,
7861 _: &SelectToPreviousWordStart,
7862 cx: &mut ViewContext<Self>,
7863 ) {
7864 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7865 s.move_heads_with(|map, head, _| {
7866 (
7867 movement::previous_word_start(map, head),
7868 SelectionGoal::None,
7869 )
7870 });
7871 })
7872 }
7873
7874 pub fn select_to_previous_subword_start(
7875 &mut self,
7876 _: &SelectToPreviousSubwordStart,
7877 cx: &mut ViewContext<Self>,
7878 ) {
7879 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7880 s.move_heads_with(|map, head, _| {
7881 (
7882 movement::previous_subword_start(map, head),
7883 SelectionGoal::None,
7884 )
7885 });
7886 })
7887 }
7888
7889 pub fn delete_to_previous_word_start(
7890 &mut self,
7891 action: &DeleteToPreviousWordStart,
7892 cx: &mut ViewContext<Self>,
7893 ) {
7894 self.transact(cx, |this, cx| {
7895 this.select_autoclose_pair(cx);
7896 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7897 let line_mode = s.line_mode;
7898 s.move_with(|map, selection| {
7899 if selection.is_empty() && !line_mode {
7900 let cursor = if action.ignore_newlines {
7901 movement::previous_word_start(map, selection.head())
7902 } else {
7903 movement::previous_word_start_or_newline(map, selection.head())
7904 };
7905 selection.set_head(cursor, SelectionGoal::None);
7906 }
7907 });
7908 });
7909 this.insert("", cx);
7910 });
7911 }
7912
7913 pub fn delete_to_previous_subword_start(
7914 &mut self,
7915 _: &DeleteToPreviousSubwordStart,
7916 cx: &mut ViewContext<Self>,
7917 ) {
7918 self.transact(cx, |this, cx| {
7919 this.select_autoclose_pair(cx);
7920 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7921 let line_mode = s.line_mode;
7922 s.move_with(|map, selection| {
7923 if selection.is_empty() && !line_mode {
7924 let cursor = movement::previous_subword_start(map, selection.head());
7925 selection.set_head(cursor, SelectionGoal::None);
7926 }
7927 });
7928 });
7929 this.insert("", cx);
7930 });
7931 }
7932
7933 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7934 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7935 s.move_cursors_with(|map, head, _| {
7936 (movement::next_word_end(map, head), SelectionGoal::None)
7937 });
7938 })
7939 }
7940
7941 pub fn move_to_next_subword_end(
7942 &mut self,
7943 _: &MoveToNextSubwordEnd,
7944 cx: &mut ViewContext<Self>,
7945 ) {
7946 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7947 s.move_cursors_with(|map, head, _| {
7948 (movement::next_subword_end(map, head), SelectionGoal::None)
7949 });
7950 })
7951 }
7952
7953 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7954 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7955 s.move_heads_with(|map, head, _| {
7956 (movement::next_word_end(map, head), SelectionGoal::None)
7957 });
7958 })
7959 }
7960
7961 pub fn select_to_next_subword_end(
7962 &mut self,
7963 _: &SelectToNextSubwordEnd,
7964 cx: &mut ViewContext<Self>,
7965 ) {
7966 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7967 s.move_heads_with(|map, head, _| {
7968 (movement::next_subword_end(map, head), SelectionGoal::None)
7969 });
7970 })
7971 }
7972
7973 pub fn delete_to_next_word_end(
7974 &mut self,
7975 action: &DeleteToNextWordEnd,
7976 cx: &mut ViewContext<Self>,
7977 ) {
7978 self.transact(cx, |this, cx| {
7979 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7980 let line_mode = s.line_mode;
7981 s.move_with(|map, selection| {
7982 if selection.is_empty() && !line_mode {
7983 let cursor = if action.ignore_newlines {
7984 movement::next_word_end(map, selection.head())
7985 } else {
7986 movement::next_word_end_or_newline(map, selection.head())
7987 };
7988 selection.set_head(cursor, SelectionGoal::None);
7989 }
7990 });
7991 });
7992 this.insert("", cx);
7993 });
7994 }
7995
7996 pub fn delete_to_next_subword_end(
7997 &mut self,
7998 _: &DeleteToNextSubwordEnd,
7999 cx: &mut ViewContext<Self>,
8000 ) {
8001 self.transact(cx, |this, cx| {
8002 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8003 s.move_with(|map, selection| {
8004 if selection.is_empty() {
8005 let cursor = movement::next_subword_end(map, selection.head());
8006 selection.set_head(cursor, SelectionGoal::None);
8007 }
8008 });
8009 });
8010 this.insert("", cx);
8011 });
8012 }
8013
8014 pub fn move_to_beginning_of_line(
8015 &mut self,
8016 action: &MoveToBeginningOfLine,
8017 cx: &mut ViewContext<Self>,
8018 ) {
8019 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8020 s.move_cursors_with(|map, head, _| {
8021 (
8022 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8023 SelectionGoal::None,
8024 )
8025 });
8026 })
8027 }
8028
8029 pub fn select_to_beginning_of_line(
8030 &mut self,
8031 action: &SelectToBeginningOfLine,
8032 cx: &mut ViewContext<Self>,
8033 ) {
8034 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8035 s.move_heads_with(|map, head, _| {
8036 (
8037 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8038 SelectionGoal::None,
8039 )
8040 });
8041 });
8042 }
8043
8044 pub fn delete_to_beginning_of_line(
8045 &mut self,
8046 _: &DeleteToBeginningOfLine,
8047 cx: &mut ViewContext<Self>,
8048 ) {
8049 self.transact(cx, |this, cx| {
8050 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8051 s.move_with(|_, selection| {
8052 selection.reversed = true;
8053 });
8054 });
8055
8056 this.select_to_beginning_of_line(
8057 &SelectToBeginningOfLine {
8058 stop_at_soft_wraps: false,
8059 },
8060 cx,
8061 );
8062 this.backspace(&Backspace, cx);
8063 });
8064 }
8065
8066 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
8067 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8068 s.move_cursors_with(|map, head, _| {
8069 (
8070 movement::line_end(map, head, action.stop_at_soft_wraps),
8071 SelectionGoal::None,
8072 )
8073 });
8074 })
8075 }
8076
8077 pub fn select_to_end_of_line(
8078 &mut self,
8079 action: &SelectToEndOfLine,
8080 cx: &mut ViewContext<Self>,
8081 ) {
8082 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8083 s.move_heads_with(|map, head, _| {
8084 (
8085 movement::line_end(map, head, action.stop_at_soft_wraps),
8086 SelectionGoal::None,
8087 )
8088 });
8089 })
8090 }
8091
8092 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
8093 self.transact(cx, |this, cx| {
8094 this.select_to_end_of_line(
8095 &SelectToEndOfLine {
8096 stop_at_soft_wraps: false,
8097 },
8098 cx,
8099 );
8100 this.delete(&Delete, cx);
8101 });
8102 }
8103
8104 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
8105 self.transact(cx, |this, cx| {
8106 this.select_to_end_of_line(
8107 &SelectToEndOfLine {
8108 stop_at_soft_wraps: false,
8109 },
8110 cx,
8111 );
8112 this.cut(&Cut, cx);
8113 });
8114 }
8115
8116 pub fn move_to_start_of_paragraph(
8117 &mut self,
8118 _: &MoveToStartOfParagraph,
8119 cx: &mut ViewContext<Self>,
8120 ) {
8121 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8122 cx.propagate();
8123 return;
8124 }
8125
8126 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8127 s.move_with(|map, selection| {
8128 selection.collapse_to(
8129 movement::start_of_paragraph(map, selection.head(), 1),
8130 SelectionGoal::None,
8131 )
8132 });
8133 })
8134 }
8135
8136 pub fn move_to_end_of_paragraph(
8137 &mut self,
8138 _: &MoveToEndOfParagraph,
8139 cx: &mut ViewContext<Self>,
8140 ) {
8141 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8142 cx.propagate();
8143 return;
8144 }
8145
8146 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8147 s.move_with(|map, selection| {
8148 selection.collapse_to(
8149 movement::end_of_paragraph(map, selection.head(), 1),
8150 SelectionGoal::None,
8151 )
8152 });
8153 })
8154 }
8155
8156 pub fn select_to_start_of_paragraph(
8157 &mut self,
8158 _: &SelectToStartOfParagraph,
8159 cx: &mut ViewContext<Self>,
8160 ) {
8161 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8162 cx.propagate();
8163 return;
8164 }
8165
8166 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8167 s.move_heads_with(|map, head, _| {
8168 (
8169 movement::start_of_paragraph(map, head, 1),
8170 SelectionGoal::None,
8171 )
8172 });
8173 })
8174 }
8175
8176 pub fn select_to_end_of_paragraph(
8177 &mut self,
8178 _: &SelectToEndOfParagraph,
8179 cx: &mut ViewContext<Self>,
8180 ) {
8181 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8182 cx.propagate();
8183 return;
8184 }
8185
8186 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8187 s.move_heads_with(|map, head, _| {
8188 (
8189 movement::end_of_paragraph(map, head, 1),
8190 SelectionGoal::None,
8191 )
8192 });
8193 })
8194 }
8195
8196 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8197 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8198 cx.propagate();
8199 return;
8200 }
8201
8202 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8203 s.select_ranges(vec![0..0]);
8204 });
8205 }
8206
8207 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8208 let mut selection = self.selections.last::<Point>(cx);
8209 selection.set_head(Point::zero(), SelectionGoal::None);
8210
8211 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8212 s.select(vec![selection]);
8213 });
8214 }
8215
8216 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8217 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8218 cx.propagate();
8219 return;
8220 }
8221
8222 let cursor = self.buffer.read(cx).read(cx).len();
8223 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8224 s.select_ranges(vec![cursor..cursor])
8225 });
8226 }
8227
8228 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8229 self.nav_history = nav_history;
8230 }
8231
8232 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8233 self.nav_history.as_ref()
8234 }
8235
8236 fn push_to_nav_history(
8237 &mut self,
8238 cursor_anchor: Anchor,
8239 new_position: Option<Point>,
8240 cx: &mut ViewContext<Self>,
8241 ) {
8242 if let Some(nav_history) = self.nav_history.as_mut() {
8243 let buffer = self.buffer.read(cx).read(cx);
8244 let cursor_position = cursor_anchor.to_point(&buffer);
8245 let scroll_state = self.scroll_manager.anchor();
8246 let scroll_top_row = scroll_state.top_row(&buffer);
8247 drop(buffer);
8248
8249 if let Some(new_position) = new_position {
8250 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8251 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8252 return;
8253 }
8254 }
8255
8256 nav_history.push(
8257 Some(NavigationData {
8258 cursor_anchor,
8259 cursor_position,
8260 scroll_anchor: scroll_state,
8261 scroll_top_row,
8262 }),
8263 cx,
8264 );
8265 }
8266 }
8267
8268 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8269 let buffer = self.buffer.read(cx).snapshot(cx);
8270 let mut selection = self.selections.first::<usize>(cx);
8271 selection.set_head(buffer.len(), SelectionGoal::None);
8272 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8273 s.select(vec![selection]);
8274 });
8275 }
8276
8277 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8278 let end = self.buffer.read(cx).read(cx).len();
8279 self.change_selections(None, cx, |s| {
8280 s.select_ranges(vec![0..end]);
8281 });
8282 }
8283
8284 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8285 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8286 let mut selections = self.selections.all::<Point>(cx);
8287 let max_point = display_map.buffer_snapshot.max_point();
8288 for selection in &mut selections {
8289 let rows = selection.spanned_rows(true, &display_map);
8290 selection.start = Point::new(rows.start.0, 0);
8291 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8292 selection.reversed = false;
8293 }
8294 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8295 s.select(selections);
8296 });
8297 }
8298
8299 pub fn split_selection_into_lines(
8300 &mut self,
8301 _: &SplitSelectionIntoLines,
8302 cx: &mut ViewContext<Self>,
8303 ) {
8304 let mut to_unfold = Vec::new();
8305 let mut new_selection_ranges = Vec::new();
8306 {
8307 let selections = self.selections.all::<Point>(cx);
8308 let buffer = self.buffer.read(cx).read(cx);
8309 for selection in selections {
8310 for row in selection.start.row..selection.end.row {
8311 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8312 new_selection_ranges.push(cursor..cursor);
8313 }
8314 new_selection_ranges.push(selection.end..selection.end);
8315 to_unfold.push(selection.start..selection.end);
8316 }
8317 }
8318 self.unfold_ranges(&to_unfold, true, true, cx);
8319 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8320 s.select_ranges(new_selection_ranges);
8321 });
8322 }
8323
8324 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8325 self.add_selection(true, cx);
8326 }
8327
8328 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8329 self.add_selection(false, cx);
8330 }
8331
8332 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8333 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8334 let mut selections = self.selections.all::<Point>(cx);
8335 let text_layout_details = self.text_layout_details(cx);
8336 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8337 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8338 let range = oldest_selection.display_range(&display_map).sorted();
8339
8340 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8341 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8342 let positions = start_x.min(end_x)..start_x.max(end_x);
8343
8344 selections.clear();
8345 let mut stack = Vec::new();
8346 for row in range.start.row().0..=range.end.row().0 {
8347 if let Some(selection) = self.selections.build_columnar_selection(
8348 &display_map,
8349 DisplayRow(row),
8350 &positions,
8351 oldest_selection.reversed,
8352 &text_layout_details,
8353 ) {
8354 stack.push(selection.id);
8355 selections.push(selection);
8356 }
8357 }
8358
8359 if above {
8360 stack.reverse();
8361 }
8362
8363 AddSelectionsState { above, stack }
8364 });
8365
8366 let last_added_selection = *state.stack.last().unwrap();
8367 let mut new_selections = Vec::new();
8368 if above == state.above {
8369 let end_row = if above {
8370 DisplayRow(0)
8371 } else {
8372 display_map.max_point().row()
8373 };
8374
8375 'outer: for selection in selections {
8376 if selection.id == last_added_selection {
8377 let range = selection.display_range(&display_map).sorted();
8378 debug_assert_eq!(range.start.row(), range.end.row());
8379 let mut row = range.start.row();
8380 let positions =
8381 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8382 px(start)..px(end)
8383 } else {
8384 let start_x =
8385 display_map.x_for_display_point(range.start, &text_layout_details);
8386 let end_x =
8387 display_map.x_for_display_point(range.end, &text_layout_details);
8388 start_x.min(end_x)..start_x.max(end_x)
8389 };
8390
8391 while row != end_row {
8392 if above {
8393 row.0 -= 1;
8394 } else {
8395 row.0 += 1;
8396 }
8397
8398 if let Some(new_selection) = self.selections.build_columnar_selection(
8399 &display_map,
8400 row,
8401 &positions,
8402 selection.reversed,
8403 &text_layout_details,
8404 ) {
8405 state.stack.push(new_selection.id);
8406 if above {
8407 new_selections.push(new_selection);
8408 new_selections.push(selection);
8409 } else {
8410 new_selections.push(selection);
8411 new_selections.push(new_selection);
8412 }
8413
8414 continue 'outer;
8415 }
8416 }
8417 }
8418
8419 new_selections.push(selection);
8420 }
8421 } else {
8422 new_selections = selections;
8423 new_selections.retain(|s| s.id != last_added_selection);
8424 state.stack.pop();
8425 }
8426
8427 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8428 s.select(new_selections);
8429 });
8430 if state.stack.len() > 1 {
8431 self.add_selections_state = Some(state);
8432 }
8433 }
8434
8435 pub fn select_next_match_internal(
8436 &mut self,
8437 display_map: &DisplaySnapshot,
8438 replace_newest: bool,
8439 autoscroll: Option<Autoscroll>,
8440 cx: &mut ViewContext<Self>,
8441 ) -> Result<()> {
8442 fn select_next_match_ranges(
8443 this: &mut Editor,
8444 range: Range<usize>,
8445 replace_newest: bool,
8446 auto_scroll: Option<Autoscroll>,
8447 cx: &mut ViewContext<Editor>,
8448 ) {
8449 this.unfold_ranges(&[range.clone()], false, true, cx);
8450 this.change_selections(auto_scroll, cx, |s| {
8451 if replace_newest {
8452 s.delete(s.newest_anchor().id);
8453 }
8454 s.insert_range(range.clone());
8455 });
8456 }
8457
8458 let buffer = &display_map.buffer_snapshot;
8459 let mut selections = self.selections.all::<usize>(cx);
8460 if let Some(mut select_next_state) = self.select_next_state.take() {
8461 let query = &select_next_state.query;
8462 if !select_next_state.done {
8463 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8464 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8465 let mut next_selected_range = None;
8466
8467 let bytes_after_last_selection =
8468 buffer.bytes_in_range(last_selection.end..buffer.len());
8469 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8470 let query_matches = query
8471 .stream_find_iter(bytes_after_last_selection)
8472 .map(|result| (last_selection.end, result))
8473 .chain(
8474 query
8475 .stream_find_iter(bytes_before_first_selection)
8476 .map(|result| (0, result)),
8477 );
8478
8479 for (start_offset, query_match) in query_matches {
8480 let query_match = query_match.unwrap(); // can only fail due to I/O
8481 let offset_range =
8482 start_offset + query_match.start()..start_offset + query_match.end();
8483 let display_range = offset_range.start.to_display_point(display_map)
8484 ..offset_range.end.to_display_point(display_map);
8485
8486 if !select_next_state.wordwise
8487 || (!movement::is_inside_word(display_map, display_range.start)
8488 && !movement::is_inside_word(display_map, display_range.end))
8489 {
8490 // TODO: This is n^2, because we might check all the selections
8491 if !selections
8492 .iter()
8493 .any(|selection| selection.range().overlaps(&offset_range))
8494 {
8495 next_selected_range = Some(offset_range);
8496 break;
8497 }
8498 }
8499 }
8500
8501 if let Some(next_selected_range) = next_selected_range {
8502 select_next_match_ranges(
8503 self,
8504 next_selected_range,
8505 replace_newest,
8506 autoscroll,
8507 cx,
8508 );
8509 } else {
8510 select_next_state.done = true;
8511 }
8512 }
8513
8514 self.select_next_state = Some(select_next_state);
8515 } else {
8516 let mut only_carets = true;
8517 let mut same_text_selected = true;
8518 let mut selected_text = None;
8519
8520 let mut selections_iter = selections.iter().peekable();
8521 while let Some(selection) = selections_iter.next() {
8522 if selection.start != selection.end {
8523 only_carets = false;
8524 }
8525
8526 if same_text_selected {
8527 if selected_text.is_none() {
8528 selected_text =
8529 Some(buffer.text_for_range(selection.range()).collect::<String>());
8530 }
8531
8532 if let Some(next_selection) = selections_iter.peek() {
8533 if next_selection.range().len() == selection.range().len() {
8534 let next_selected_text = buffer
8535 .text_for_range(next_selection.range())
8536 .collect::<String>();
8537 if Some(next_selected_text) != selected_text {
8538 same_text_selected = false;
8539 selected_text = None;
8540 }
8541 } else {
8542 same_text_selected = false;
8543 selected_text = None;
8544 }
8545 }
8546 }
8547 }
8548
8549 if only_carets {
8550 for selection in &mut selections {
8551 let word_range = movement::surrounding_word(
8552 display_map,
8553 selection.start.to_display_point(display_map),
8554 );
8555 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8556 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8557 selection.goal = SelectionGoal::None;
8558 selection.reversed = false;
8559 select_next_match_ranges(
8560 self,
8561 selection.start..selection.end,
8562 replace_newest,
8563 autoscroll,
8564 cx,
8565 );
8566 }
8567
8568 if selections.len() == 1 {
8569 let selection = selections
8570 .last()
8571 .expect("ensured that there's only one selection");
8572 let query = buffer
8573 .text_for_range(selection.start..selection.end)
8574 .collect::<String>();
8575 let is_empty = query.is_empty();
8576 let select_state = SelectNextState {
8577 query: AhoCorasick::new(&[query])?,
8578 wordwise: true,
8579 done: is_empty,
8580 };
8581 self.select_next_state = Some(select_state);
8582 } else {
8583 self.select_next_state = None;
8584 }
8585 } else if let Some(selected_text) = selected_text {
8586 self.select_next_state = Some(SelectNextState {
8587 query: AhoCorasick::new(&[selected_text])?,
8588 wordwise: false,
8589 done: false,
8590 });
8591 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8592 }
8593 }
8594 Ok(())
8595 }
8596
8597 pub fn select_all_matches(
8598 &mut self,
8599 _action: &SelectAllMatches,
8600 cx: &mut ViewContext<Self>,
8601 ) -> Result<()> {
8602 self.push_to_selection_history();
8603 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8604
8605 self.select_next_match_internal(&display_map, false, None, cx)?;
8606 let Some(select_next_state) = self.select_next_state.as_mut() else {
8607 return Ok(());
8608 };
8609 if select_next_state.done {
8610 return Ok(());
8611 }
8612
8613 let mut new_selections = self.selections.all::<usize>(cx);
8614
8615 let buffer = &display_map.buffer_snapshot;
8616 let query_matches = select_next_state
8617 .query
8618 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8619
8620 for query_match in query_matches {
8621 let query_match = query_match.unwrap(); // can only fail due to I/O
8622 let offset_range = query_match.start()..query_match.end();
8623 let display_range = offset_range.start.to_display_point(&display_map)
8624 ..offset_range.end.to_display_point(&display_map);
8625
8626 if !select_next_state.wordwise
8627 || (!movement::is_inside_word(&display_map, display_range.start)
8628 && !movement::is_inside_word(&display_map, display_range.end))
8629 {
8630 self.selections.change_with(cx, |selections| {
8631 new_selections.push(Selection {
8632 id: selections.new_selection_id(),
8633 start: offset_range.start,
8634 end: offset_range.end,
8635 reversed: false,
8636 goal: SelectionGoal::None,
8637 });
8638 });
8639 }
8640 }
8641
8642 new_selections.sort_by_key(|selection| selection.start);
8643 let mut ix = 0;
8644 while ix + 1 < new_selections.len() {
8645 let current_selection = &new_selections[ix];
8646 let next_selection = &new_selections[ix + 1];
8647 if current_selection.range().overlaps(&next_selection.range()) {
8648 if current_selection.id < next_selection.id {
8649 new_selections.remove(ix + 1);
8650 } else {
8651 new_selections.remove(ix);
8652 }
8653 } else {
8654 ix += 1;
8655 }
8656 }
8657
8658 select_next_state.done = true;
8659 self.unfold_ranges(
8660 &new_selections
8661 .iter()
8662 .map(|selection| selection.range())
8663 .collect::<Vec<_>>(),
8664 false,
8665 false,
8666 cx,
8667 );
8668 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8669 selections.select(new_selections)
8670 });
8671
8672 Ok(())
8673 }
8674
8675 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8676 self.push_to_selection_history();
8677 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8678 self.select_next_match_internal(
8679 &display_map,
8680 action.replace_newest,
8681 Some(Autoscroll::newest()),
8682 cx,
8683 )?;
8684 Ok(())
8685 }
8686
8687 pub fn select_previous(
8688 &mut self,
8689 action: &SelectPrevious,
8690 cx: &mut ViewContext<Self>,
8691 ) -> Result<()> {
8692 self.push_to_selection_history();
8693 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8694 let buffer = &display_map.buffer_snapshot;
8695 let mut selections = self.selections.all::<usize>(cx);
8696 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8697 let query = &select_prev_state.query;
8698 if !select_prev_state.done {
8699 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8700 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8701 let mut next_selected_range = None;
8702 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8703 let bytes_before_last_selection =
8704 buffer.reversed_bytes_in_range(0..last_selection.start);
8705 let bytes_after_first_selection =
8706 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8707 let query_matches = query
8708 .stream_find_iter(bytes_before_last_selection)
8709 .map(|result| (last_selection.start, result))
8710 .chain(
8711 query
8712 .stream_find_iter(bytes_after_first_selection)
8713 .map(|result| (buffer.len(), result)),
8714 );
8715 for (end_offset, query_match) in query_matches {
8716 let query_match = query_match.unwrap(); // can only fail due to I/O
8717 let offset_range =
8718 end_offset - query_match.end()..end_offset - query_match.start();
8719 let display_range = offset_range.start.to_display_point(&display_map)
8720 ..offset_range.end.to_display_point(&display_map);
8721
8722 if !select_prev_state.wordwise
8723 || (!movement::is_inside_word(&display_map, display_range.start)
8724 && !movement::is_inside_word(&display_map, display_range.end))
8725 {
8726 next_selected_range = Some(offset_range);
8727 break;
8728 }
8729 }
8730
8731 if let Some(next_selected_range) = next_selected_range {
8732 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8733 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8734 if action.replace_newest {
8735 s.delete(s.newest_anchor().id);
8736 }
8737 s.insert_range(next_selected_range);
8738 });
8739 } else {
8740 select_prev_state.done = true;
8741 }
8742 }
8743
8744 self.select_prev_state = Some(select_prev_state);
8745 } else {
8746 let mut only_carets = true;
8747 let mut same_text_selected = true;
8748 let mut selected_text = None;
8749
8750 let mut selections_iter = selections.iter().peekable();
8751 while let Some(selection) = selections_iter.next() {
8752 if selection.start != selection.end {
8753 only_carets = false;
8754 }
8755
8756 if same_text_selected {
8757 if selected_text.is_none() {
8758 selected_text =
8759 Some(buffer.text_for_range(selection.range()).collect::<String>());
8760 }
8761
8762 if let Some(next_selection) = selections_iter.peek() {
8763 if next_selection.range().len() == selection.range().len() {
8764 let next_selected_text = buffer
8765 .text_for_range(next_selection.range())
8766 .collect::<String>();
8767 if Some(next_selected_text) != selected_text {
8768 same_text_selected = false;
8769 selected_text = None;
8770 }
8771 } else {
8772 same_text_selected = false;
8773 selected_text = None;
8774 }
8775 }
8776 }
8777 }
8778
8779 if only_carets {
8780 for selection in &mut selections {
8781 let word_range = movement::surrounding_word(
8782 &display_map,
8783 selection.start.to_display_point(&display_map),
8784 );
8785 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8786 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8787 selection.goal = SelectionGoal::None;
8788 selection.reversed = false;
8789 }
8790 if selections.len() == 1 {
8791 let selection = selections
8792 .last()
8793 .expect("ensured that there's only one selection");
8794 let query = buffer
8795 .text_for_range(selection.start..selection.end)
8796 .collect::<String>();
8797 let is_empty = query.is_empty();
8798 let select_state = SelectNextState {
8799 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8800 wordwise: true,
8801 done: is_empty,
8802 };
8803 self.select_prev_state = Some(select_state);
8804 } else {
8805 self.select_prev_state = None;
8806 }
8807
8808 self.unfold_ranges(
8809 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8810 false,
8811 true,
8812 cx,
8813 );
8814 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8815 s.select(selections);
8816 });
8817 } else if let Some(selected_text) = selected_text {
8818 self.select_prev_state = Some(SelectNextState {
8819 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8820 wordwise: false,
8821 done: false,
8822 });
8823 self.select_previous(action, cx)?;
8824 }
8825 }
8826 Ok(())
8827 }
8828
8829 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8830 if self.read_only(cx) {
8831 return;
8832 }
8833 let text_layout_details = &self.text_layout_details(cx);
8834 self.transact(cx, |this, cx| {
8835 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8836 let mut edits = Vec::new();
8837 let mut selection_edit_ranges = Vec::new();
8838 let mut last_toggled_row = None;
8839 let snapshot = this.buffer.read(cx).read(cx);
8840 let empty_str: Arc<str> = Arc::default();
8841 let mut suffixes_inserted = Vec::new();
8842 let ignore_indent = action.ignore_indent;
8843
8844 fn comment_prefix_range(
8845 snapshot: &MultiBufferSnapshot,
8846 row: MultiBufferRow,
8847 comment_prefix: &str,
8848 comment_prefix_whitespace: &str,
8849 ignore_indent: bool,
8850 ) -> Range<Point> {
8851 let indent_size = if ignore_indent {
8852 0
8853 } else {
8854 snapshot.indent_size_for_line(row).len
8855 };
8856
8857 let start = Point::new(row.0, indent_size);
8858
8859 let mut line_bytes = snapshot
8860 .bytes_in_range(start..snapshot.max_point())
8861 .flatten()
8862 .copied();
8863
8864 // If this line currently begins with the line comment prefix, then record
8865 // the range containing the prefix.
8866 if line_bytes
8867 .by_ref()
8868 .take(comment_prefix.len())
8869 .eq(comment_prefix.bytes())
8870 {
8871 // Include any whitespace that matches the comment prefix.
8872 let matching_whitespace_len = line_bytes
8873 .zip(comment_prefix_whitespace.bytes())
8874 .take_while(|(a, b)| a == b)
8875 .count() as u32;
8876 let end = Point::new(
8877 start.row,
8878 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8879 );
8880 start..end
8881 } else {
8882 start..start
8883 }
8884 }
8885
8886 fn comment_suffix_range(
8887 snapshot: &MultiBufferSnapshot,
8888 row: MultiBufferRow,
8889 comment_suffix: &str,
8890 comment_suffix_has_leading_space: bool,
8891 ) -> Range<Point> {
8892 let end = Point::new(row.0, snapshot.line_len(row));
8893 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8894
8895 let mut line_end_bytes = snapshot
8896 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8897 .flatten()
8898 .copied();
8899
8900 let leading_space_len = if suffix_start_column > 0
8901 && line_end_bytes.next() == Some(b' ')
8902 && comment_suffix_has_leading_space
8903 {
8904 1
8905 } else {
8906 0
8907 };
8908
8909 // If this line currently begins with the line comment prefix, then record
8910 // the range containing the prefix.
8911 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8912 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8913 start..end
8914 } else {
8915 end..end
8916 }
8917 }
8918
8919 // TODO: Handle selections that cross excerpts
8920 for selection in &mut selections {
8921 let start_column = snapshot
8922 .indent_size_for_line(MultiBufferRow(selection.start.row))
8923 .len;
8924 let language = if let Some(language) =
8925 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8926 {
8927 language
8928 } else {
8929 continue;
8930 };
8931
8932 selection_edit_ranges.clear();
8933
8934 // If multiple selections contain a given row, avoid processing that
8935 // row more than once.
8936 let mut start_row = MultiBufferRow(selection.start.row);
8937 if last_toggled_row == Some(start_row) {
8938 start_row = start_row.next_row();
8939 }
8940 let end_row =
8941 if selection.end.row > selection.start.row && selection.end.column == 0 {
8942 MultiBufferRow(selection.end.row - 1)
8943 } else {
8944 MultiBufferRow(selection.end.row)
8945 };
8946 last_toggled_row = Some(end_row);
8947
8948 if start_row > end_row {
8949 continue;
8950 }
8951
8952 // If the language has line comments, toggle those.
8953 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8954
8955 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8956 if ignore_indent {
8957 full_comment_prefixes = full_comment_prefixes
8958 .into_iter()
8959 .map(|s| Arc::from(s.trim_end()))
8960 .collect();
8961 }
8962
8963 if !full_comment_prefixes.is_empty() {
8964 let first_prefix = full_comment_prefixes
8965 .first()
8966 .expect("prefixes is non-empty");
8967 let prefix_trimmed_lengths = full_comment_prefixes
8968 .iter()
8969 .map(|p| p.trim_end_matches(' ').len())
8970 .collect::<SmallVec<[usize; 4]>>();
8971
8972 let mut all_selection_lines_are_comments = true;
8973
8974 for row in start_row.0..=end_row.0 {
8975 let row = MultiBufferRow(row);
8976 if start_row < end_row && snapshot.is_line_blank(row) {
8977 continue;
8978 }
8979
8980 let prefix_range = full_comment_prefixes
8981 .iter()
8982 .zip(prefix_trimmed_lengths.iter().copied())
8983 .map(|(prefix, trimmed_prefix_len)| {
8984 comment_prefix_range(
8985 snapshot.deref(),
8986 row,
8987 &prefix[..trimmed_prefix_len],
8988 &prefix[trimmed_prefix_len..],
8989 ignore_indent,
8990 )
8991 })
8992 .max_by_key(|range| range.end.column - range.start.column)
8993 .expect("prefixes is non-empty");
8994
8995 if prefix_range.is_empty() {
8996 all_selection_lines_are_comments = false;
8997 }
8998
8999 selection_edit_ranges.push(prefix_range);
9000 }
9001
9002 if all_selection_lines_are_comments {
9003 edits.extend(
9004 selection_edit_ranges
9005 .iter()
9006 .cloned()
9007 .map(|range| (range, empty_str.clone())),
9008 );
9009 } else {
9010 let min_column = selection_edit_ranges
9011 .iter()
9012 .map(|range| range.start.column)
9013 .min()
9014 .unwrap_or(0);
9015 edits.extend(selection_edit_ranges.iter().map(|range| {
9016 let position = Point::new(range.start.row, min_column);
9017 (position..position, first_prefix.clone())
9018 }));
9019 }
9020 } else if let Some((full_comment_prefix, comment_suffix)) =
9021 language.block_comment_delimiters()
9022 {
9023 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
9024 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
9025 let prefix_range = comment_prefix_range(
9026 snapshot.deref(),
9027 start_row,
9028 comment_prefix,
9029 comment_prefix_whitespace,
9030 ignore_indent,
9031 );
9032 let suffix_range = comment_suffix_range(
9033 snapshot.deref(),
9034 end_row,
9035 comment_suffix.trim_start_matches(' '),
9036 comment_suffix.starts_with(' '),
9037 );
9038
9039 if prefix_range.is_empty() || suffix_range.is_empty() {
9040 edits.push((
9041 prefix_range.start..prefix_range.start,
9042 full_comment_prefix.clone(),
9043 ));
9044 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
9045 suffixes_inserted.push((end_row, comment_suffix.len()));
9046 } else {
9047 edits.push((prefix_range, empty_str.clone()));
9048 edits.push((suffix_range, empty_str.clone()));
9049 }
9050 } else {
9051 continue;
9052 }
9053 }
9054
9055 drop(snapshot);
9056 this.buffer.update(cx, |buffer, cx| {
9057 buffer.edit(edits, None, cx);
9058 });
9059
9060 // Adjust selections so that they end before any comment suffixes that
9061 // were inserted.
9062 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
9063 let mut selections = this.selections.all::<Point>(cx);
9064 let snapshot = this.buffer.read(cx).read(cx);
9065 for selection in &mut selections {
9066 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9067 match row.cmp(&MultiBufferRow(selection.end.row)) {
9068 Ordering::Less => {
9069 suffixes_inserted.next();
9070 continue;
9071 }
9072 Ordering::Greater => break,
9073 Ordering::Equal => {
9074 if selection.end.column == snapshot.line_len(row) {
9075 if selection.is_empty() {
9076 selection.start.column -= suffix_len as u32;
9077 }
9078 selection.end.column -= suffix_len as u32;
9079 }
9080 break;
9081 }
9082 }
9083 }
9084 }
9085
9086 drop(snapshot);
9087 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
9088
9089 let selections = this.selections.all::<Point>(cx);
9090 let selections_on_single_row = selections.windows(2).all(|selections| {
9091 selections[0].start.row == selections[1].start.row
9092 && selections[0].end.row == selections[1].end.row
9093 && selections[0].start.row == selections[0].end.row
9094 });
9095 let selections_selecting = selections
9096 .iter()
9097 .any(|selection| selection.start != selection.end);
9098 let advance_downwards = action.advance_downwards
9099 && selections_on_single_row
9100 && !selections_selecting
9101 && !matches!(this.mode, EditorMode::SingleLine { .. });
9102
9103 if advance_downwards {
9104 let snapshot = this.buffer.read(cx).snapshot(cx);
9105
9106 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
9107 s.move_cursors_with(|display_snapshot, display_point, _| {
9108 let mut point = display_point.to_point(display_snapshot);
9109 point.row += 1;
9110 point = snapshot.clip_point(point, Bias::Left);
9111 let display_point = point.to_display_point(display_snapshot);
9112 let goal = SelectionGoal::HorizontalPosition(
9113 display_snapshot
9114 .x_for_display_point(display_point, text_layout_details)
9115 .into(),
9116 );
9117 (display_point, goal)
9118 })
9119 });
9120 }
9121 });
9122 }
9123
9124 pub fn select_enclosing_symbol(
9125 &mut self,
9126 _: &SelectEnclosingSymbol,
9127 cx: &mut ViewContext<Self>,
9128 ) {
9129 let buffer = self.buffer.read(cx).snapshot(cx);
9130 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9131
9132 fn update_selection(
9133 selection: &Selection<usize>,
9134 buffer_snap: &MultiBufferSnapshot,
9135 ) -> Option<Selection<usize>> {
9136 let cursor = selection.head();
9137 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9138 for symbol in symbols.iter().rev() {
9139 let start = symbol.range.start.to_offset(buffer_snap);
9140 let end = symbol.range.end.to_offset(buffer_snap);
9141 let new_range = start..end;
9142 if start < selection.start || end > selection.end {
9143 return Some(Selection {
9144 id: selection.id,
9145 start: new_range.start,
9146 end: new_range.end,
9147 goal: SelectionGoal::None,
9148 reversed: selection.reversed,
9149 });
9150 }
9151 }
9152 None
9153 }
9154
9155 let mut selected_larger_symbol = false;
9156 let new_selections = old_selections
9157 .iter()
9158 .map(|selection| match update_selection(selection, &buffer) {
9159 Some(new_selection) => {
9160 if new_selection.range() != selection.range() {
9161 selected_larger_symbol = true;
9162 }
9163 new_selection
9164 }
9165 None => selection.clone(),
9166 })
9167 .collect::<Vec<_>>();
9168
9169 if selected_larger_symbol {
9170 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9171 s.select(new_selections);
9172 });
9173 }
9174 }
9175
9176 pub fn select_larger_syntax_node(
9177 &mut self,
9178 _: &SelectLargerSyntaxNode,
9179 cx: &mut ViewContext<Self>,
9180 ) {
9181 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9182 let buffer = self.buffer.read(cx).snapshot(cx);
9183 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9184
9185 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9186 let mut selected_larger_node = false;
9187 let new_selections = old_selections
9188 .iter()
9189 .map(|selection| {
9190 let old_range = selection.start..selection.end;
9191 let mut new_range = old_range.clone();
9192 while let Some(containing_range) =
9193 buffer.range_for_syntax_ancestor(new_range.clone())
9194 {
9195 new_range = containing_range;
9196 if !display_map.intersects_fold(new_range.start)
9197 && !display_map.intersects_fold(new_range.end)
9198 {
9199 break;
9200 }
9201 }
9202
9203 selected_larger_node |= new_range != old_range;
9204 Selection {
9205 id: selection.id,
9206 start: new_range.start,
9207 end: new_range.end,
9208 goal: SelectionGoal::None,
9209 reversed: selection.reversed,
9210 }
9211 })
9212 .collect::<Vec<_>>();
9213
9214 if selected_larger_node {
9215 stack.push(old_selections);
9216 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9217 s.select(new_selections);
9218 });
9219 }
9220 self.select_larger_syntax_node_stack = stack;
9221 }
9222
9223 pub fn select_smaller_syntax_node(
9224 &mut self,
9225 _: &SelectSmallerSyntaxNode,
9226 cx: &mut ViewContext<Self>,
9227 ) {
9228 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9229 if let Some(selections) = stack.pop() {
9230 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9231 s.select(selections.to_vec());
9232 });
9233 }
9234 self.select_larger_syntax_node_stack = stack;
9235 }
9236
9237 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9238 if !EditorSettings::get_global(cx).gutter.runnables {
9239 self.clear_tasks();
9240 return Task::ready(());
9241 }
9242 let project = self.project.as_ref().map(Model::downgrade);
9243 cx.spawn(|this, mut cx| async move {
9244 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
9245 let Some(project) = project.and_then(|p| p.upgrade()) else {
9246 return;
9247 };
9248 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9249 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9250 }) else {
9251 return;
9252 };
9253
9254 let hide_runnables = project
9255 .update(&mut cx, |project, cx| {
9256 // Do not display any test indicators in non-dev server remote projects.
9257 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9258 })
9259 .unwrap_or(true);
9260 if hide_runnables {
9261 return;
9262 }
9263 let new_rows =
9264 cx.background_executor()
9265 .spawn({
9266 let snapshot = display_snapshot.clone();
9267 async move {
9268 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9269 }
9270 })
9271 .await;
9272 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9273
9274 this.update(&mut cx, |this, _| {
9275 this.clear_tasks();
9276 for (key, value) in rows {
9277 this.insert_tasks(key, value);
9278 }
9279 })
9280 .ok();
9281 })
9282 }
9283 fn fetch_runnable_ranges(
9284 snapshot: &DisplaySnapshot,
9285 range: Range<Anchor>,
9286 ) -> Vec<language::RunnableRange> {
9287 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9288 }
9289
9290 fn runnable_rows(
9291 project: Model<Project>,
9292 snapshot: DisplaySnapshot,
9293 runnable_ranges: Vec<RunnableRange>,
9294 mut cx: AsyncWindowContext,
9295 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9296 runnable_ranges
9297 .into_iter()
9298 .filter_map(|mut runnable| {
9299 let tasks = cx
9300 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9301 .ok()?;
9302 if tasks.is_empty() {
9303 return None;
9304 }
9305
9306 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9307
9308 let row = snapshot
9309 .buffer_snapshot
9310 .buffer_line_for_row(MultiBufferRow(point.row))?
9311 .1
9312 .start
9313 .row;
9314
9315 let context_range =
9316 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9317 Some((
9318 (runnable.buffer_id, row),
9319 RunnableTasks {
9320 templates: tasks,
9321 offset: MultiBufferOffset(runnable.run_range.start),
9322 context_range,
9323 column: point.column,
9324 extra_variables: runnable.extra_captures,
9325 },
9326 ))
9327 })
9328 .collect()
9329 }
9330
9331 fn templates_with_tags(
9332 project: &Model<Project>,
9333 runnable: &mut Runnable,
9334 cx: &WindowContext<'_>,
9335 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9336 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9337 let (worktree_id, file) = project
9338 .buffer_for_id(runnable.buffer, cx)
9339 .and_then(|buffer| buffer.read(cx).file())
9340 .map(|file| (file.worktree_id(cx), file.clone()))
9341 .unzip();
9342
9343 (
9344 project.task_store().read(cx).task_inventory().cloned(),
9345 worktree_id,
9346 file,
9347 )
9348 });
9349
9350 let tags = mem::take(&mut runnable.tags);
9351 let mut tags: Vec<_> = tags
9352 .into_iter()
9353 .flat_map(|tag| {
9354 let tag = tag.0.clone();
9355 inventory
9356 .as_ref()
9357 .into_iter()
9358 .flat_map(|inventory| {
9359 inventory.read(cx).list_tasks(
9360 file.clone(),
9361 Some(runnable.language.clone()),
9362 worktree_id,
9363 cx,
9364 )
9365 })
9366 .filter(move |(_, template)| {
9367 template.tags.iter().any(|source_tag| source_tag == &tag)
9368 })
9369 })
9370 .sorted_by_key(|(kind, _)| kind.to_owned())
9371 .collect();
9372 if let Some((leading_tag_source, _)) = tags.first() {
9373 // Strongest source wins; if we have worktree tag binding, prefer that to
9374 // global and language bindings;
9375 // if we have a global binding, prefer that to language binding.
9376 let first_mismatch = tags
9377 .iter()
9378 .position(|(tag_source, _)| tag_source != leading_tag_source);
9379 if let Some(index) = first_mismatch {
9380 tags.truncate(index);
9381 }
9382 }
9383
9384 tags
9385 }
9386
9387 pub fn move_to_enclosing_bracket(
9388 &mut self,
9389 _: &MoveToEnclosingBracket,
9390 cx: &mut ViewContext<Self>,
9391 ) {
9392 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9393 s.move_offsets_with(|snapshot, selection| {
9394 let Some(enclosing_bracket_ranges) =
9395 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9396 else {
9397 return;
9398 };
9399
9400 let mut best_length = usize::MAX;
9401 let mut best_inside = false;
9402 let mut best_in_bracket_range = false;
9403 let mut best_destination = None;
9404 for (open, close) in enclosing_bracket_ranges {
9405 let close = close.to_inclusive();
9406 let length = close.end() - open.start;
9407 let inside = selection.start >= open.end && selection.end <= *close.start();
9408 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9409 || close.contains(&selection.head());
9410
9411 // If best is next to a bracket and current isn't, skip
9412 if !in_bracket_range && best_in_bracket_range {
9413 continue;
9414 }
9415
9416 // Prefer smaller lengths unless best is inside and current isn't
9417 if length > best_length && (best_inside || !inside) {
9418 continue;
9419 }
9420
9421 best_length = length;
9422 best_inside = inside;
9423 best_in_bracket_range = in_bracket_range;
9424 best_destination = Some(
9425 if close.contains(&selection.start) && close.contains(&selection.end) {
9426 if inside {
9427 open.end
9428 } else {
9429 open.start
9430 }
9431 } else if inside {
9432 *close.start()
9433 } else {
9434 *close.end()
9435 },
9436 );
9437 }
9438
9439 if let Some(destination) = best_destination {
9440 selection.collapse_to(destination, SelectionGoal::None);
9441 }
9442 })
9443 });
9444 }
9445
9446 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9447 self.end_selection(cx);
9448 self.selection_history.mode = SelectionHistoryMode::Undoing;
9449 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9450 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9451 self.select_next_state = entry.select_next_state;
9452 self.select_prev_state = entry.select_prev_state;
9453 self.add_selections_state = entry.add_selections_state;
9454 self.request_autoscroll(Autoscroll::newest(), cx);
9455 }
9456 self.selection_history.mode = SelectionHistoryMode::Normal;
9457 }
9458
9459 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9460 self.end_selection(cx);
9461 self.selection_history.mode = SelectionHistoryMode::Redoing;
9462 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9463 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9464 self.select_next_state = entry.select_next_state;
9465 self.select_prev_state = entry.select_prev_state;
9466 self.add_selections_state = entry.add_selections_state;
9467 self.request_autoscroll(Autoscroll::newest(), cx);
9468 }
9469 self.selection_history.mode = SelectionHistoryMode::Normal;
9470 }
9471
9472 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9473 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9474 }
9475
9476 pub fn expand_excerpts_down(
9477 &mut self,
9478 action: &ExpandExcerptsDown,
9479 cx: &mut ViewContext<Self>,
9480 ) {
9481 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9482 }
9483
9484 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9485 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9486 }
9487
9488 pub fn expand_excerpts_for_direction(
9489 &mut self,
9490 lines: u32,
9491 direction: ExpandExcerptDirection,
9492 cx: &mut ViewContext<Self>,
9493 ) {
9494 let selections = self.selections.disjoint_anchors();
9495
9496 let lines = if lines == 0 {
9497 EditorSettings::get_global(cx).expand_excerpt_lines
9498 } else {
9499 lines
9500 };
9501
9502 self.buffer.update(cx, |buffer, cx| {
9503 buffer.expand_excerpts(
9504 selections
9505 .iter()
9506 .map(|selection| selection.head().excerpt_id)
9507 .dedup(),
9508 lines,
9509 direction,
9510 cx,
9511 )
9512 })
9513 }
9514
9515 pub fn expand_excerpt(
9516 &mut self,
9517 excerpt: ExcerptId,
9518 direction: ExpandExcerptDirection,
9519 cx: &mut ViewContext<Self>,
9520 ) {
9521 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9522 self.buffer.update(cx, |buffer, cx| {
9523 buffer.expand_excerpts([excerpt], lines, direction, cx)
9524 })
9525 }
9526
9527 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9528 self.go_to_diagnostic_impl(Direction::Next, cx)
9529 }
9530
9531 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9532 self.go_to_diagnostic_impl(Direction::Prev, cx)
9533 }
9534
9535 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9536 let buffer = self.buffer.read(cx).snapshot(cx);
9537 let selection = self.selections.newest::<usize>(cx);
9538
9539 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9540 if direction == Direction::Next {
9541 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9542 let (group_id, jump_to) = popover.activation_info();
9543 if self.activate_diagnostics(group_id, cx) {
9544 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9545 let mut new_selection = s.newest_anchor().clone();
9546 new_selection.collapse_to(jump_to, SelectionGoal::None);
9547 s.select_anchors(vec![new_selection.clone()]);
9548 });
9549 }
9550 return;
9551 }
9552 }
9553
9554 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9555 active_diagnostics
9556 .primary_range
9557 .to_offset(&buffer)
9558 .to_inclusive()
9559 });
9560 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9561 if active_primary_range.contains(&selection.head()) {
9562 *active_primary_range.start()
9563 } else {
9564 selection.head()
9565 }
9566 } else {
9567 selection.head()
9568 };
9569 let snapshot = self.snapshot(cx);
9570 loop {
9571 let diagnostics = if direction == Direction::Prev {
9572 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9573 } else {
9574 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9575 }
9576 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9577 let group = diagnostics
9578 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9579 // be sorted in a stable way
9580 // skip until we are at current active diagnostic, if it exists
9581 .skip_while(|entry| {
9582 (match direction {
9583 Direction::Prev => entry.range.start >= search_start,
9584 Direction::Next => entry.range.start <= search_start,
9585 }) && self
9586 .active_diagnostics
9587 .as_ref()
9588 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9589 })
9590 .find_map(|entry| {
9591 if entry.diagnostic.is_primary
9592 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9593 && !entry.range.is_empty()
9594 // if we match with the active diagnostic, skip it
9595 && Some(entry.diagnostic.group_id)
9596 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9597 {
9598 Some((entry.range, entry.diagnostic.group_id))
9599 } else {
9600 None
9601 }
9602 });
9603
9604 if let Some((primary_range, group_id)) = group {
9605 if self.activate_diagnostics(group_id, cx) {
9606 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9607 s.select(vec![Selection {
9608 id: selection.id,
9609 start: primary_range.start,
9610 end: primary_range.start,
9611 reversed: false,
9612 goal: SelectionGoal::None,
9613 }]);
9614 });
9615 }
9616 break;
9617 } else {
9618 // Cycle around to the start of the buffer, potentially moving back to the start of
9619 // the currently active diagnostic.
9620 active_primary_range.take();
9621 if direction == Direction::Prev {
9622 if search_start == buffer.len() {
9623 break;
9624 } else {
9625 search_start = buffer.len();
9626 }
9627 } else if search_start == 0 {
9628 break;
9629 } else {
9630 search_start = 0;
9631 }
9632 }
9633 }
9634 }
9635
9636 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9637 let snapshot = self
9638 .display_map
9639 .update(cx, |display_map, cx| display_map.snapshot(cx));
9640 let selection = self.selections.newest::<Point>(cx);
9641 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9642 }
9643
9644 fn go_to_hunk_after_position(
9645 &mut self,
9646 snapshot: &DisplaySnapshot,
9647 position: Point,
9648 cx: &mut ViewContext<'_, Editor>,
9649 ) -> Option<MultiBufferDiffHunk> {
9650 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9651 snapshot,
9652 position,
9653 false,
9654 snapshot
9655 .buffer_snapshot
9656 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9657 cx,
9658 ) {
9659 return Some(hunk);
9660 }
9661
9662 let wrapped_point = Point::zero();
9663 self.go_to_next_hunk_in_direction(
9664 snapshot,
9665 wrapped_point,
9666 true,
9667 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9668 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9669 ),
9670 cx,
9671 )
9672 }
9673
9674 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9675 let snapshot = self
9676 .display_map
9677 .update(cx, |display_map, cx| display_map.snapshot(cx));
9678 let selection = self.selections.newest::<Point>(cx);
9679
9680 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9681 }
9682
9683 fn go_to_hunk_before_position(
9684 &mut self,
9685 snapshot: &DisplaySnapshot,
9686 position: Point,
9687 cx: &mut ViewContext<'_, Editor>,
9688 ) -> Option<MultiBufferDiffHunk> {
9689 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9690 snapshot,
9691 position,
9692 false,
9693 snapshot
9694 .buffer_snapshot
9695 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9696 cx,
9697 ) {
9698 return Some(hunk);
9699 }
9700
9701 let wrapped_point = snapshot.buffer_snapshot.max_point();
9702 self.go_to_next_hunk_in_direction(
9703 snapshot,
9704 wrapped_point,
9705 true,
9706 snapshot
9707 .buffer_snapshot
9708 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9709 cx,
9710 )
9711 }
9712
9713 fn go_to_next_hunk_in_direction(
9714 &mut self,
9715 snapshot: &DisplaySnapshot,
9716 initial_point: Point,
9717 is_wrapped: bool,
9718 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9719 cx: &mut ViewContext<Editor>,
9720 ) -> Option<MultiBufferDiffHunk> {
9721 let display_point = initial_point.to_display_point(snapshot);
9722 let mut hunks = hunks
9723 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9724 .filter(|(display_hunk, _)| {
9725 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9726 })
9727 .dedup();
9728
9729 if let Some((display_hunk, hunk)) = hunks.next() {
9730 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9731 let row = display_hunk.start_display_row();
9732 let point = DisplayPoint::new(row, 0);
9733 s.select_display_ranges([point..point]);
9734 });
9735
9736 Some(hunk)
9737 } else {
9738 None
9739 }
9740 }
9741
9742 pub fn go_to_definition(
9743 &mut self,
9744 _: &GoToDefinition,
9745 cx: &mut ViewContext<Self>,
9746 ) -> Task<Result<Navigated>> {
9747 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9748 cx.spawn(|editor, mut cx| async move {
9749 if definition.await? == Navigated::Yes {
9750 return Ok(Navigated::Yes);
9751 }
9752 match editor.update(&mut cx, |editor, cx| {
9753 editor.find_all_references(&FindAllReferences, cx)
9754 })? {
9755 Some(references) => references.await,
9756 None => Ok(Navigated::No),
9757 }
9758 })
9759 }
9760
9761 pub fn go_to_declaration(
9762 &mut self,
9763 _: &GoToDeclaration,
9764 cx: &mut ViewContext<Self>,
9765 ) -> Task<Result<Navigated>> {
9766 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9767 }
9768
9769 pub fn go_to_declaration_split(
9770 &mut self,
9771 _: &GoToDeclaration,
9772 cx: &mut ViewContext<Self>,
9773 ) -> Task<Result<Navigated>> {
9774 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9775 }
9776
9777 pub fn go_to_implementation(
9778 &mut self,
9779 _: &GoToImplementation,
9780 cx: &mut ViewContext<Self>,
9781 ) -> Task<Result<Navigated>> {
9782 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9783 }
9784
9785 pub fn go_to_implementation_split(
9786 &mut self,
9787 _: &GoToImplementationSplit,
9788 cx: &mut ViewContext<Self>,
9789 ) -> Task<Result<Navigated>> {
9790 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9791 }
9792
9793 pub fn go_to_type_definition(
9794 &mut self,
9795 _: &GoToTypeDefinition,
9796 cx: &mut ViewContext<Self>,
9797 ) -> Task<Result<Navigated>> {
9798 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9799 }
9800
9801 pub fn go_to_definition_split(
9802 &mut self,
9803 _: &GoToDefinitionSplit,
9804 cx: &mut ViewContext<Self>,
9805 ) -> Task<Result<Navigated>> {
9806 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9807 }
9808
9809 pub fn go_to_type_definition_split(
9810 &mut self,
9811 _: &GoToTypeDefinitionSplit,
9812 cx: &mut ViewContext<Self>,
9813 ) -> Task<Result<Navigated>> {
9814 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9815 }
9816
9817 fn go_to_definition_of_kind(
9818 &mut self,
9819 kind: GotoDefinitionKind,
9820 split: bool,
9821 cx: &mut ViewContext<Self>,
9822 ) -> Task<Result<Navigated>> {
9823 let Some(provider) = self.semantics_provider.clone() else {
9824 return Task::ready(Ok(Navigated::No));
9825 };
9826 let head = self.selections.newest::<usize>(cx).head();
9827 let buffer = self.buffer.read(cx);
9828 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9829 text_anchor
9830 } else {
9831 return Task::ready(Ok(Navigated::No));
9832 };
9833
9834 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9835 return Task::ready(Ok(Navigated::No));
9836 };
9837
9838 cx.spawn(|editor, mut cx| async move {
9839 let definitions = definitions.await?;
9840 let navigated = editor
9841 .update(&mut cx, |editor, cx| {
9842 editor.navigate_to_hover_links(
9843 Some(kind),
9844 definitions
9845 .into_iter()
9846 .filter(|location| {
9847 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9848 })
9849 .map(HoverLink::Text)
9850 .collect::<Vec<_>>(),
9851 split,
9852 cx,
9853 )
9854 })?
9855 .await?;
9856 anyhow::Ok(navigated)
9857 })
9858 }
9859
9860 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9861 let position = self.selections.newest_anchor().head();
9862 let Some((buffer, buffer_position)) =
9863 self.buffer.read(cx).text_anchor_for_position(position, cx)
9864 else {
9865 return;
9866 };
9867
9868 cx.spawn(|editor, mut cx| async move {
9869 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9870 editor.update(&mut cx, |_, cx| {
9871 cx.open_url(&url);
9872 })
9873 } else {
9874 Ok(())
9875 }
9876 })
9877 .detach();
9878 }
9879
9880 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9881 let Some(workspace) = self.workspace() else {
9882 return;
9883 };
9884
9885 let position = self.selections.newest_anchor().head();
9886
9887 let Some((buffer, buffer_position)) =
9888 self.buffer.read(cx).text_anchor_for_position(position, cx)
9889 else {
9890 return;
9891 };
9892
9893 let project = self.project.clone();
9894
9895 cx.spawn(|_, mut cx| async move {
9896 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9897
9898 if let Some((_, path)) = result {
9899 workspace
9900 .update(&mut cx, |workspace, cx| {
9901 workspace.open_resolved_path(path, cx)
9902 })?
9903 .await?;
9904 }
9905 anyhow::Ok(())
9906 })
9907 .detach();
9908 }
9909
9910 pub(crate) fn navigate_to_hover_links(
9911 &mut self,
9912 kind: Option<GotoDefinitionKind>,
9913 mut definitions: Vec<HoverLink>,
9914 split: bool,
9915 cx: &mut ViewContext<Editor>,
9916 ) -> Task<Result<Navigated>> {
9917 // If there is one definition, just open it directly
9918 if definitions.len() == 1 {
9919 let definition = definitions.pop().unwrap();
9920
9921 enum TargetTaskResult {
9922 Location(Option<Location>),
9923 AlreadyNavigated,
9924 }
9925
9926 let target_task = match definition {
9927 HoverLink::Text(link) => {
9928 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9929 }
9930 HoverLink::InlayHint(lsp_location, server_id) => {
9931 let computation = self.compute_target_location(lsp_location, server_id, cx);
9932 cx.background_executor().spawn(async move {
9933 let location = computation.await?;
9934 Ok(TargetTaskResult::Location(location))
9935 })
9936 }
9937 HoverLink::Url(url) => {
9938 cx.open_url(&url);
9939 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9940 }
9941 HoverLink::File(path) => {
9942 if let Some(workspace) = self.workspace() {
9943 cx.spawn(|_, mut cx| async move {
9944 workspace
9945 .update(&mut cx, |workspace, cx| {
9946 workspace.open_resolved_path(path, cx)
9947 })?
9948 .await
9949 .map(|_| TargetTaskResult::AlreadyNavigated)
9950 })
9951 } else {
9952 Task::ready(Ok(TargetTaskResult::Location(None)))
9953 }
9954 }
9955 };
9956 cx.spawn(|editor, mut cx| async move {
9957 let target = match target_task.await.context("target resolution task")? {
9958 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9959 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9960 TargetTaskResult::Location(Some(target)) => target,
9961 };
9962
9963 editor.update(&mut cx, |editor, cx| {
9964 let Some(workspace) = editor.workspace() else {
9965 return Navigated::No;
9966 };
9967 let pane = workspace.read(cx).active_pane().clone();
9968
9969 let range = target.range.to_offset(target.buffer.read(cx));
9970 let range = editor.range_for_match(&range);
9971
9972 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9973 let buffer = target.buffer.read(cx);
9974 let range = check_multiline_range(buffer, range);
9975 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9976 s.select_ranges([range]);
9977 });
9978 } else {
9979 cx.window_context().defer(move |cx| {
9980 let target_editor: View<Self> =
9981 workspace.update(cx, |workspace, cx| {
9982 let pane = if split {
9983 workspace.adjacent_pane(cx)
9984 } else {
9985 workspace.active_pane().clone()
9986 };
9987
9988 workspace.open_project_item(
9989 pane,
9990 target.buffer.clone(),
9991 true,
9992 true,
9993 cx,
9994 )
9995 });
9996 target_editor.update(cx, |target_editor, cx| {
9997 // When selecting a definition in a different buffer, disable the nav history
9998 // to avoid creating a history entry at the previous cursor location.
9999 pane.update(cx, |pane, _| pane.disable_history());
10000 let buffer = target.buffer.read(cx);
10001 let range = check_multiline_range(buffer, range);
10002 target_editor.change_selections(
10003 Some(Autoscroll::focused()),
10004 cx,
10005 |s| {
10006 s.select_ranges([range]);
10007 },
10008 );
10009 pane.update(cx, |pane, _| pane.enable_history());
10010 });
10011 });
10012 }
10013 Navigated::Yes
10014 })
10015 })
10016 } else if !definitions.is_empty() {
10017 cx.spawn(|editor, mut cx| async move {
10018 let (title, location_tasks, workspace) = editor
10019 .update(&mut cx, |editor, cx| {
10020 let tab_kind = match kind {
10021 Some(GotoDefinitionKind::Implementation) => "Implementations",
10022 _ => "Definitions",
10023 };
10024 let title = definitions
10025 .iter()
10026 .find_map(|definition| match definition {
10027 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
10028 let buffer = origin.buffer.read(cx);
10029 format!(
10030 "{} for {}",
10031 tab_kind,
10032 buffer
10033 .text_for_range(origin.range.clone())
10034 .collect::<String>()
10035 )
10036 }),
10037 HoverLink::InlayHint(_, _) => None,
10038 HoverLink::Url(_) => None,
10039 HoverLink::File(_) => None,
10040 })
10041 .unwrap_or(tab_kind.to_string());
10042 let location_tasks = definitions
10043 .into_iter()
10044 .map(|definition| match definition {
10045 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
10046 HoverLink::InlayHint(lsp_location, server_id) => {
10047 editor.compute_target_location(lsp_location, server_id, cx)
10048 }
10049 HoverLink::Url(_) => Task::ready(Ok(None)),
10050 HoverLink::File(_) => Task::ready(Ok(None)),
10051 })
10052 .collect::<Vec<_>>();
10053 (title, location_tasks, editor.workspace().clone())
10054 })
10055 .context("location tasks preparation")?;
10056
10057 let locations = future::join_all(location_tasks)
10058 .await
10059 .into_iter()
10060 .filter_map(|location| location.transpose())
10061 .collect::<Result<_>>()
10062 .context("location tasks")?;
10063
10064 let Some(workspace) = workspace else {
10065 return Ok(Navigated::No);
10066 };
10067 let opened = workspace
10068 .update(&mut cx, |workspace, cx| {
10069 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
10070 })
10071 .ok();
10072
10073 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10074 })
10075 } else {
10076 Task::ready(Ok(Navigated::No))
10077 }
10078 }
10079
10080 fn compute_target_location(
10081 &self,
10082 lsp_location: lsp::Location,
10083 server_id: LanguageServerId,
10084 cx: &mut ViewContext<Self>,
10085 ) -> Task<anyhow::Result<Option<Location>>> {
10086 let Some(project) = self.project.clone() else {
10087 return Task::Ready(Some(Ok(None)));
10088 };
10089
10090 cx.spawn(move |editor, mut cx| async move {
10091 let location_task = editor.update(&mut cx, |_, cx| {
10092 project.update(cx, |project, cx| {
10093 let language_server_name = project
10094 .language_server_statuses(cx)
10095 .find(|(id, _)| server_id == *id)
10096 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10097 language_server_name.map(|language_server_name| {
10098 project.open_local_buffer_via_lsp(
10099 lsp_location.uri.clone(),
10100 server_id,
10101 language_server_name,
10102 cx,
10103 )
10104 })
10105 })
10106 })?;
10107 let location = match location_task {
10108 Some(task) => Some({
10109 let target_buffer_handle = task.await.context("open local buffer")?;
10110 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
10111 let target_start = target_buffer
10112 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
10113 let target_end = target_buffer
10114 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
10115 target_buffer.anchor_after(target_start)
10116 ..target_buffer.anchor_before(target_end)
10117 })?;
10118 Location {
10119 buffer: target_buffer_handle,
10120 range,
10121 }
10122 }),
10123 None => None,
10124 };
10125 Ok(location)
10126 })
10127 }
10128
10129 pub fn find_all_references(
10130 &mut self,
10131 _: &FindAllReferences,
10132 cx: &mut ViewContext<Self>,
10133 ) -> Option<Task<Result<Navigated>>> {
10134 let selection = self.selections.newest::<usize>(cx);
10135 let multi_buffer = self.buffer.read(cx);
10136 let head = selection.head();
10137
10138 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
10139 let head_anchor = multi_buffer_snapshot.anchor_at(
10140 head,
10141 if head < selection.tail() {
10142 Bias::Right
10143 } else {
10144 Bias::Left
10145 },
10146 );
10147
10148 match self
10149 .find_all_references_task_sources
10150 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
10151 {
10152 Ok(_) => {
10153 log::info!(
10154 "Ignoring repeated FindAllReferences invocation with the position of already running task"
10155 );
10156 return None;
10157 }
10158 Err(i) => {
10159 self.find_all_references_task_sources.insert(i, head_anchor);
10160 }
10161 }
10162
10163 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
10164 let workspace = self.workspace()?;
10165 let project = workspace.read(cx).project().clone();
10166 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
10167 Some(cx.spawn(|editor, mut cx| async move {
10168 let _cleanup = defer({
10169 let mut cx = cx.clone();
10170 move || {
10171 let _ = editor.update(&mut cx, |editor, _| {
10172 if let Ok(i) =
10173 editor
10174 .find_all_references_task_sources
10175 .binary_search_by(|anchor| {
10176 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
10177 })
10178 {
10179 editor.find_all_references_task_sources.remove(i);
10180 }
10181 });
10182 }
10183 });
10184
10185 let locations = references.await?;
10186 if locations.is_empty() {
10187 return anyhow::Ok(Navigated::No);
10188 }
10189
10190 workspace.update(&mut cx, |workspace, cx| {
10191 let title = locations
10192 .first()
10193 .as_ref()
10194 .map(|location| {
10195 let buffer = location.buffer.read(cx);
10196 format!(
10197 "References to `{}`",
10198 buffer
10199 .text_for_range(location.range.clone())
10200 .collect::<String>()
10201 )
10202 })
10203 .unwrap();
10204 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10205 Navigated::Yes
10206 })
10207 }))
10208 }
10209
10210 /// Opens a multibuffer with the given project locations in it
10211 pub fn open_locations_in_multibuffer(
10212 workspace: &mut Workspace,
10213 mut locations: Vec<Location>,
10214 title: String,
10215 split: bool,
10216 cx: &mut ViewContext<Workspace>,
10217 ) {
10218 // If there are multiple definitions, open them in a multibuffer
10219 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10220 let mut locations = locations.into_iter().peekable();
10221 let mut ranges_to_highlight = Vec::new();
10222 let capability = workspace.project().read(cx).capability();
10223
10224 let excerpt_buffer = cx.new_model(|cx| {
10225 let mut multibuffer = MultiBuffer::new(capability);
10226 while let Some(location) = locations.next() {
10227 let buffer = location.buffer.read(cx);
10228 let mut ranges_for_buffer = Vec::new();
10229 let range = location.range.to_offset(buffer);
10230 ranges_for_buffer.push(range.clone());
10231
10232 while let Some(next_location) = locations.peek() {
10233 if next_location.buffer == location.buffer {
10234 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10235 locations.next();
10236 } else {
10237 break;
10238 }
10239 }
10240
10241 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10242 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10243 location.buffer.clone(),
10244 ranges_for_buffer,
10245 DEFAULT_MULTIBUFFER_CONTEXT,
10246 cx,
10247 ))
10248 }
10249
10250 multibuffer.with_title(title)
10251 });
10252
10253 let editor = cx.new_view(|cx| {
10254 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10255 });
10256 editor.update(cx, |editor, cx| {
10257 if let Some(first_range) = ranges_to_highlight.first() {
10258 editor.change_selections(None, cx, |selections| {
10259 selections.clear_disjoint();
10260 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10261 });
10262 }
10263 editor.highlight_background::<Self>(
10264 &ranges_to_highlight,
10265 |theme| theme.editor_highlighted_line_background,
10266 cx,
10267 );
10268 });
10269
10270 let item = Box::new(editor);
10271 let item_id = item.item_id();
10272
10273 if split {
10274 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10275 } else {
10276 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10277 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10278 pane.close_current_preview_item(cx)
10279 } else {
10280 None
10281 }
10282 });
10283 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10284 }
10285 workspace.active_pane().update(cx, |pane, cx| {
10286 pane.set_preview_item_id(Some(item_id), cx);
10287 });
10288 }
10289
10290 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10291 use language::ToOffset as _;
10292
10293 let provider = self.semantics_provider.clone()?;
10294 let selection = self.selections.newest_anchor().clone();
10295 let (cursor_buffer, cursor_buffer_position) = self
10296 .buffer
10297 .read(cx)
10298 .text_anchor_for_position(selection.head(), cx)?;
10299 let (tail_buffer, cursor_buffer_position_end) = self
10300 .buffer
10301 .read(cx)
10302 .text_anchor_for_position(selection.tail(), cx)?;
10303 if tail_buffer != cursor_buffer {
10304 return None;
10305 }
10306
10307 let snapshot = cursor_buffer.read(cx).snapshot();
10308 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10309 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10310 let prepare_rename = provider
10311 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10312 .unwrap_or_else(|| Task::ready(Ok(None)));
10313 drop(snapshot);
10314
10315 Some(cx.spawn(|this, mut cx| async move {
10316 let rename_range = if let Some(range) = prepare_rename.await? {
10317 Some(range)
10318 } else {
10319 this.update(&mut cx, |this, cx| {
10320 let buffer = this.buffer.read(cx).snapshot(cx);
10321 let mut buffer_highlights = this
10322 .document_highlights_for_position(selection.head(), &buffer)
10323 .filter(|highlight| {
10324 highlight.start.excerpt_id == selection.head().excerpt_id
10325 && highlight.end.excerpt_id == selection.head().excerpt_id
10326 });
10327 buffer_highlights
10328 .next()
10329 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10330 })?
10331 };
10332 if let Some(rename_range) = rename_range {
10333 this.update(&mut cx, |this, cx| {
10334 let snapshot = cursor_buffer.read(cx).snapshot();
10335 let rename_buffer_range = rename_range.to_offset(&snapshot);
10336 let cursor_offset_in_rename_range =
10337 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10338 let cursor_offset_in_rename_range_end =
10339 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10340
10341 this.take_rename(false, cx);
10342 let buffer = this.buffer.read(cx).read(cx);
10343 let cursor_offset = selection.head().to_offset(&buffer);
10344 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10345 let rename_end = rename_start + rename_buffer_range.len();
10346 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10347 let mut old_highlight_id = None;
10348 let old_name: Arc<str> = buffer
10349 .chunks(rename_start..rename_end, true)
10350 .map(|chunk| {
10351 if old_highlight_id.is_none() {
10352 old_highlight_id = chunk.syntax_highlight_id;
10353 }
10354 chunk.text
10355 })
10356 .collect::<String>()
10357 .into();
10358
10359 drop(buffer);
10360
10361 // Position the selection in the rename editor so that it matches the current selection.
10362 this.show_local_selections = false;
10363 let rename_editor = cx.new_view(|cx| {
10364 let mut editor = Editor::single_line(cx);
10365 editor.buffer.update(cx, |buffer, cx| {
10366 buffer.edit([(0..0, old_name.clone())], None, cx)
10367 });
10368 let rename_selection_range = match cursor_offset_in_rename_range
10369 .cmp(&cursor_offset_in_rename_range_end)
10370 {
10371 Ordering::Equal => {
10372 editor.select_all(&SelectAll, cx);
10373 return editor;
10374 }
10375 Ordering::Less => {
10376 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10377 }
10378 Ordering::Greater => {
10379 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10380 }
10381 };
10382 if rename_selection_range.end > old_name.len() {
10383 editor.select_all(&SelectAll, cx);
10384 } else {
10385 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10386 s.select_ranges([rename_selection_range]);
10387 });
10388 }
10389 editor
10390 });
10391 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10392 if e == &EditorEvent::Focused {
10393 cx.emit(EditorEvent::FocusedIn)
10394 }
10395 })
10396 .detach();
10397
10398 let write_highlights =
10399 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10400 let read_highlights =
10401 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10402 let ranges = write_highlights
10403 .iter()
10404 .flat_map(|(_, ranges)| ranges.iter())
10405 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10406 .cloned()
10407 .collect();
10408
10409 this.highlight_text::<Rename>(
10410 ranges,
10411 HighlightStyle {
10412 fade_out: Some(0.6),
10413 ..Default::default()
10414 },
10415 cx,
10416 );
10417 let rename_focus_handle = rename_editor.focus_handle(cx);
10418 cx.focus(&rename_focus_handle);
10419 let block_id = this.insert_blocks(
10420 [BlockProperties {
10421 style: BlockStyle::Flex,
10422 placement: BlockPlacement::Below(range.start),
10423 height: 1,
10424 render: Box::new({
10425 let rename_editor = rename_editor.clone();
10426 move |cx: &mut BlockContext| {
10427 let mut text_style = cx.editor_style.text.clone();
10428 if let Some(highlight_style) = old_highlight_id
10429 .and_then(|h| h.style(&cx.editor_style.syntax))
10430 {
10431 text_style = text_style.highlight(highlight_style);
10432 }
10433 div()
10434 .pl(cx.anchor_x)
10435 .child(EditorElement::new(
10436 &rename_editor,
10437 EditorStyle {
10438 background: cx.theme().system().transparent,
10439 local_player: cx.editor_style.local_player,
10440 text: text_style,
10441 scrollbar_width: cx.editor_style.scrollbar_width,
10442 syntax: cx.editor_style.syntax.clone(),
10443 status: cx.editor_style.status.clone(),
10444 inlay_hints_style: HighlightStyle {
10445 font_weight: Some(FontWeight::BOLD),
10446 ..make_inlay_hints_style(cx)
10447 },
10448 suggestions_style: HighlightStyle {
10449 color: Some(cx.theme().status().predictive),
10450 ..HighlightStyle::default()
10451 },
10452 ..EditorStyle::default()
10453 },
10454 ))
10455 .into_any_element()
10456 }
10457 }),
10458 priority: 0,
10459 }],
10460 Some(Autoscroll::fit()),
10461 cx,
10462 )[0];
10463 this.pending_rename = Some(RenameState {
10464 range,
10465 old_name,
10466 editor: rename_editor,
10467 block_id,
10468 });
10469 })?;
10470 }
10471
10472 Ok(())
10473 }))
10474 }
10475
10476 pub fn confirm_rename(
10477 &mut self,
10478 _: &ConfirmRename,
10479 cx: &mut ViewContext<Self>,
10480 ) -> Option<Task<Result<()>>> {
10481 let rename = self.take_rename(false, cx)?;
10482 let workspace = self.workspace()?.downgrade();
10483 let (buffer, start) = self
10484 .buffer
10485 .read(cx)
10486 .text_anchor_for_position(rename.range.start, cx)?;
10487 let (end_buffer, _) = self
10488 .buffer
10489 .read(cx)
10490 .text_anchor_for_position(rename.range.end, cx)?;
10491 if buffer != end_buffer {
10492 return None;
10493 }
10494
10495 let old_name = rename.old_name;
10496 let new_name = rename.editor.read(cx).text(cx);
10497
10498 let rename = self.semantics_provider.as_ref()?.perform_rename(
10499 &buffer,
10500 start,
10501 new_name.clone(),
10502 cx,
10503 )?;
10504
10505 Some(cx.spawn(|editor, mut cx| async move {
10506 let project_transaction = rename.await?;
10507 Self::open_project_transaction(
10508 &editor,
10509 workspace,
10510 project_transaction,
10511 format!("Rename: {} → {}", old_name, new_name),
10512 cx.clone(),
10513 )
10514 .await?;
10515
10516 editor.update(&mut cx, |editor, cx| {
10517 editor.refresh_document_highlights(cx);
10518 })?;
10519 Ok(())
10520 }))
10521 }
10522
10523 fn take_rename(
10524 &mut self,
10525 moving_cursor: bool,
10526 cx: &mut ViewContext<Self>,
10527 ) -> Option<RenameState> {
10528 let rename = self.pending_rename.take()?;
10529 if rename.editor.focus_handle(cx).is_focused(cx) {
10530 cx.focus(&self.focus_handle);
10531 }
10532
10533 self.remove_blocks(
10534 [rename.block_id].into_iter().collect(),
10535 Some(Autoscroll::fit()),
10536 cx,
10537 );
10538 self.clear_highlights::<Rename>(cx);
10539 self.show_local_selections = true;
10540
10541 if moving_cursor {
10542 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10543 editor.selections.newest::<usize>(cx).head()
10544 });
10545
10546 // Update the selection to match the position of the selection inside
10547 // the rename editor.
10548 let snapshot = self.buffer.read(cx).read(cx);
10549 let rename_range = rename.range.to_offset(&snapshot);
10550 let cursor_in_editor = snapshot
10551 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10552 .min(rename_range.end);
10553 drop(snapshot);
10554
10555 self.change_selections(None, cx, |s| {
10556 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10557 });
10558 } else {
10559 self.refresh_document_highlights(cx);
10560 }
10561
10562 Some(rename)
10563 }
10564
10565 pub fn pending_rename(&self) -> Option<&RenameState> {
10566 self.pending_rename.as_ref()
10567 }
10568
10569 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10570 let project = match &self.project {
10571 Some(project) => project.clone(),
10572 None => return None,
10573 };
10574
10575 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10576 }
10577
10578 fn format_selections(
10579 &mut self,
10580 _: &FormatSelections,
10581 cx: &mut ViewContext<Self>,
10582 ) -> Option<Task<Result<()>>> {
10583 let project = match &self.project {
10584 Some(project) => project.clone(),
10585 None => return None,
10586 };
10587
10588 let selections = self
10589 .selections
10590 .all_adjusted(cx)
10591 .into_iter()
10592 .filter(|s| !s.is_empty())
10593 .collect_vec();
10594
10595 Some(self.perform_format(
10596 project,
10597 FormatTrigger::Manual,
10598 FormatTarget::Ranges(selections),
10599 cx,
10600 ))
10601 }
10602
10603 fn perform_format(
10604 &mut self,
10605 project: Model<Project>,
10606 trigger: FormatTrigger,
10607 target: FormatTarget,
10608 cx: &mut ViewContext<Self>,
10609 ) -> Task<Result<()>> {
10610 let buffer = self.buffer().clone();
10611 let mut buffers = buffer.read(cx).all_buffers();
10612 if trigger == FormatTrigger::Save {
10613 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10614 }
10615
10616 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10617 let format = project.update(cx, |project, cx| {
10618 project.format(buffers, true, trigger, target, cx)
10619 });
10620
10621 cx.spawn(|_, mut cx| async move {
10622 let transaction = futures::select_biased! {
10623 () = timeout => {
10624 log::warn!("timed out waiting for formatting");
10625 None
10626 }
10627 transaction = format.log_err().fuse() => transaction,
10628 };
10629
10630 buffer
10631 .update(&mut cx, |buffer, cx| {
10632 if let Some(transaction) = transaction {
10633 if !buffer.is_singleton() {
10634 buffer.push_transaction(&transaction.0, cx);
10635 }
10636 }
10637
10638 cx.notify();
10639 })
10640 .ok();
10641
10642 Ok(())
10643 })
10644 }
10645
10646 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10647 if let Some(project) = self.project.clone() {
10648 self.buffer.update(cx, |multi_buffer, cx| {
10649 project.update(cx, |project, cx| {
10650 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10651 });
10652 })
10653 }
10654 }
10655
10656 fn cancel_language_server_work(
10657 &mut self,
10658 _: &actions::CancelLanguageServerWork,
10659 cx: &mut ViewContext<Self>,
10660 ) {
10661 if let Some(project) = self.project.clone() {
10662 self.buffer.update(cx, |multi_buffer, cx| {
10663 project.update(cx, |project, cx| {
10664 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10665 });
10666 })
10667 }
10668 }
10669
10670 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10671 cx.show_character_palette();
10672 }
10673
10674 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10675 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10676 let buffer = self.buffer.read(cx).snapshot(cx);
10677 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10678 let is_valid = buffer
10679 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10680 .any(|entry| {
10681 entry.diagnostic.is_primary
10682 && !entry.range.is_empty()
10683 && entry.range.start == primary_range_start
10684 && entry.diagnostic.message == active_diagnostics.primary_message
10685 });
10686
10687 if is_valid != active_diagnostics.is_valid {
10688 active_diagnostics.is_valid = is_valid;
10689 let mut new_styles = HashMap::default();
10690 for (block_id, diagnostic) in &active_diagnostics.blocks {
10691 new_styles.insert(
10692 *block_id,
10693 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10694 );
10695 }
10696 self.display_map.update(cx, |display_map, _cx| {
10697 display_map.replace_blocks(new_styles)
10698 });
10699 }
10700 }
10701 }
10702
10703 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10704 self.dismiss_diagnostics(cx);
10705 let snapshot = self.snapshot(cx);
10706 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10707 let buffer = self.buffer.read(cx).snapshot(cx);
10708
10709 let mut primary_range = None;
10710 let mut primary_message = None;
10711 let mut group_end = Point::zero();
10712 let diagnostic_group = buffer
10713 .diagnostic_group::<MultiBufferPoint>(group_id)
10714 .filter_map(|entry| {
10715 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10716 && (entry.range.start.row == entry.range.end.row
10717 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10718 {
10719 return None;
10720 }
10721 if entry.range.end > group_end {
10722 group_end = entry.range.end;
10723 }
10724 if entry.diagnostic.is_primary {
10725 primary_range = Some(entry.range.clone());
10726 primary_message = Some(entry.diagnostic.message.clone());
10727 }
10728 Some(entry)
10729 })
10730 .collect::<Vec<_>>();
10731 let primary_range = primary_range?;
10732 let primary_message = primary_message?;
10733 let primary_range =
10734 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10735
10736 let blocks = display_map
10737 .insert_blocks(
10738 diagnostic_group.iter().map(|entry| {
10739 let diagnostic = entry.diagnostic.clone();
10740 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10741 BlockProperties {
10742 style: BlockStyle::Fixed,
10743 placement: BlockPlacement::Below(
10744 buffer.anchor_after(entry.range.start),
10745 ),
10746 height: message_height,
10747 render: diagnostic_block_renderer(diagnostic, None, true, true),
10748 priority: 0,
10749 }
10750 }),
10751 cx,
10752 )
10753 .into_iter()
10754 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10755 .collect();
10756
10757 Some(ActiveDiagnosticGroup {
10758 primary_range,
10759 primary_message,
10760 group_id,
10761 blocks,
10762 is_valid: true,
10763 })
10764 });
10765 self.active_diagnostics.is_some()
10766 }
10767
10768 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10769 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10770 self.display_map.update(cx, |display_map, cx| {
10771 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10772 });
10773 cx.notify();
10774 }
10775 }
10776
10777 pub fn set_selections_from_remote(
10778 &mut self,
10779 selections: Vec<Selection<Anchor>>,
10780 pending_selection: Option<Selection<Anchor>>,
10781 cx: &mut ViewContext<Self>,
10782 ) {
10783 let old_cursor_position = self.selections.newest_anchor().head();
10784 self.selections.change_with(cx, |s| {
10785 s.select_anchors(selections);
10786 if let Some(pending_selection) = pending_selection {
10787 s.set_pending(pending_selection, SelectMode::Character);
10788 } else {
10789 s.clear_pending();
10790 }
10791 });
10792 self.selections_did_change(false, &old_cursor_position, true, cx);
10793 }
10794
10795 fn push_to_selection_history(&mut self) {
10796 self.selection_history.push(SelectionHistoryEntry {
10797 selections: self.selections.disjoint_anchors(),
10798 select_next_state: self.select_next_state.clone(),
10799 select_prev_state: self.select_prev_state.clone(),
10800 add_selections_state: self.add_selections_state.clone(),
10801 });
10802 }
10803
10804 pub fn transact(
10805 &mut self,
10806 cx: &mut ViewContext<Self>,
10807 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10808 ) -> Option<TransactionId> {
10809 self.start_transaction_at(Instant::now(), cx);
10810 update(self, cx);
10811 self.end_transaction_at(Instant::now(), cx)
10812 }
10813
10814 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10815 self.end_selection(cx);
10816 if let Some(tx_id) = self
10817 .buffer
10818 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10819 {
10820 self.selection_history
10821 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10822 cx.emit(EditorEvent::TransactionBegun {
10823 transaction_id: tx_id,
10824 })
10825 }
10826 }
10827
10828 fn end_transaction_at(
10829 &mut self,
10830 now: Instant,
10831 cx: &mut ViewContext<Self>,
10832 ) -> Option<TransactionId> {
10833 if let Some(transaction_id) = self
10834 .buffer
10835 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10836 {
10837 if let Some((_, end_selections)) =
10838 self.selection_history.transaction_mut(transaction_id)
10839 {
10840 *end_selections = Some(self.selections.disjoint_anchors());
10841 } else {
10842 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10843 }
10844
10845 cx.emit(EditorEvent::Edited { transaction_id });
10846 Some(transaction_id)
10847 } else {
10848 None
10849 }
10850 }
10851
10852 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10853 let selection = self.selections.newest::<Point>(cx);
10854
10855 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10856 let range = if selection.is_empty() {
10857 let point = selection.head().to_display_point(&display_map);
10858 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10859 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10860 .to_point(&display_map);
10861 start..end
10862 } else {
10863 selection.range()
10864 };
10865 if display_map.folds_in_range(range).next().is_some() {
10866 self.unfold_lines(&Default::default(), cx)
10867 } else {
10868 self.fold(&Default::default(), cx)
10869 }
10870 }
10871
10872 pub fn toggle_fold_recursive(
10873 &mut self,
10874 _: &actions::ToggleFoldRecursive,
10875 cx: &mut ViewContext<Self>,
10876 ) {
10877 let selection = self.selections.newest::<Point>(cx);
10878
10879 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10880 let range = if selection.is_empty() {
10881 let point = selection.head().to_display_point(&display_map);
10882 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10883 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10884 .to_point(&display_map);
10885 start..end
10886 } else {
10887 selection.range()
10888 };
10889 if display_map.folds_in_range(range).next().is_some() {
10890 self.unfold_recursive(&Default::default(), cx)
10891 } else {
10892 self.fold_recursive(&Default::default(), cx)
10893 }
10894 }
10895
10896 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10897 let mut fold_ranges = Vec::new();
10898 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10899 let selections = self.selections.all_adjusted(cx);
10900
10901 for selection in selections {
10902 let range = selection.range().sorted();
10903 let buffer_start_row = range.start.row;
10904
10905 if range.start.row != range.end.row {
10906 let mut found = false;
10907 let mut row = range.start.row;
10908 while row <= range.end.row {
10909 if let Some((foldable_range, fold_text)) =
10910 { display_map.foldable_range(MultiBufferRow(row)) }
10911 {
10912 found = true;
10913 row = foldable_range.end.row + 1;
10914 fold_ranges.push((foldable_range, fold_text));
10915 } else {
10916 row += 1
10917 }
10918 }
10919 if found {
10920 continue;
10921 }
10922 }
10923
10924 for row in (0..=range.start.row).rev() {
10925 if let Some((foldable_range, fold_text)) =
10926 display_map.foldable_range(MultiBufferRow(row))
10927 {
10928 if foldable_range.end.row >= buffer_start_row {
10929 fold_ranges.push((foldable_range, fold_text));
10930 if row <= range.start.row {
10931 break;
10932 }
10933 }
10934 }
10935 }
10936 }
10937
10938 self.fold_ranges(fold_ranges, true, cx);
10939 }
10940
10941 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10942 let fold_at_level = fold_at.level;
10943 let snapshot = self.buffer.read(cx).snapshot(cx);
10944 let mut fold_ranges = Vec::new();
10945 let mut stack = vec![(0, snapshot.max_buffer_row().0, 1)];
10946
10947 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10948 while start_row < end_row {
10949 match self.snapshot(cx).foldable_range(MultiBufferRow(start_row)) {
10950 Some(foldable_range) => {
10951 let nested_start_row = foldable_range.0.start.row + 1;
10952 let nested_end_row = foldable_range.0.end.row;
10953
10954 if current_level < fold_at_level {
10955 stack.push((nested_start_row, nested_end_row, current_level + 1));
10956 } else if current_level == fold_at_level {
10957 fold_ranges.push(foldable_range);
10958 }
10959
10960 start_row = nested_end_row + 1;
10961 }
10962 None => start_row += 1,
10963 }
10964 }
10965 }
10966
10967 self.fold_ranges(fold_ranges, true, cx);
10968 }
10969
10970 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10971 let mut fold_ranges = Vec::new();
10972 let snapshot = self.buffer.read(cx).snapshot(cx);
10973
10974 for row in 0..snapshot.max_buffer_row().0 {
10975 if let Some(foldable_range) = self.snapshot(cx).foldable_range(MultiBufferRow(row)) {
10976 fold_ranges.push(foldable_range);
10977 }
10978 }
10979
10980 self.fold_ranges(fold_ranges, true, cx);
10981 }
10982
10983 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10984 let mut fold_ranges = Vec::new();
10985 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10986 let selections = self.selections.all_adjusted(cx);
10987
10988 for selection in selections {
10989 let range = selection.range().sorted();
10990 let buffer_start_row = range.start.row;
10991
10992 if range.start.row != range.end.row {
10993 let mut found = false;
10994 for row in range.start.row..=range.end.row {
10995 if let Some((foldable_range, fold_text)) =
10996 { display_map.foldable_range(MultiBufferRow(row)) }
10997 {
10998 found = true;
10999 fold_ranges.push((foldable_range, fold_text));
11000 }
11001 }
11002 if found {
11003 continue;
11004 }
11005 }
11006
11007 for row in (0..=range.start.row).rev() {
11008 if let Some((foldable_range, fold_text)) =
11009 display_map.foldable_range(MultiBufferRow(row))
11010 {
11011 if foldable_range.end.row >= buffer_start_row {
11012 fold_ranges.push((foldable_range, fold_text));
11013 } else {
11014 break;
11015 }
11016 }
11017 }
11018 }
11019
11020 self.fold_ranges(fold_ranges, true, cx);
11021 }
11022
11023 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
11024 let buffer_row = fold_at.buffer_row;
11025 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11026
11027 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
11028 let autoscroll = self
11029 .selections
11030 .all::<Point>(cx)
11031 .iter()
11032 .any(|selection| fold_range.overlaps(&selection.range()));
11033
11034 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
11035 }
11036 }
11037
11038 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
11039 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11040 let buffer = &display_map.buffer_snapshot;
11041 let selections = self.selections.all::<Point>(cx);
11042 let ranges = selections
11043 .iter()
11044 .map(|s| {
11045 let range = s.display_range(&display_map).sorted();
11046 let mut start = range.start.to_point(&display_map);
11047 let mut end = range.end.to_point(&display_map);
11048 start.column = 0;
11049 end.column = buffer.line_len(MultiBufferRow(end.row));
11050 start..end
11051 })
11052 .collect::<Vec<_>>();
11053
11054 self.unfold_ranges(&ranges, true, true, cx);
11055 }
11056
11057 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
11058 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11059 let selections = self.selections.all::<Point>(cx);
11060 let ranges = selections
11061 .iter()
11062 .map(|s| {
11063 let mut range = s.display_range(&display_map).sorted();
11064 *range.start.column_mut() = 0;
11065 *range.end.column_mut() = display_map.line_len(range.end.row());
11066 let start = range.start.to_point(&display_map);
11067 let end = range.end.to_point(&display_map);
11068 start..end
11069 })
11070 .collect::<Vec<_>>();
11071
11072 self.unfold_ranges(&ranges, true, true, cx);
11073 }
11074
11075 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
11076 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11077
11078 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
11079 ..Point::new(
11080 unfold_at.buffer_row.0,
11081 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
11082 );
11083
11084 let autoscroll = self
11085 .selections
11086 .all::<Point>(cx)
11087 .iter()
11088 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
11089
11090 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
11091 }
11092
11093 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11094 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11095 self.unfold_ranges(
11096 &[Point::zero()..display_map.max_point().to_point(&display_map)],
11097 true,
11098 true,
11099 cx,
11100 );
11101 }
11102
11103 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11104 let selections = self.selections.all::<Point>(cx);
11105 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11106 let line_mode = self.selections.line_mode;
11107 let ranges = selections.into_iter().map(|s| {
11108 if line_mode {
11109 let start = Point::new(s.start.row, 0);
11110 let end = Point::new(
11111 s.end.row,
11112 display_map
11113 .buffer_snapshot
11114 .line_len(MultiBufferRow(s.end.row)),
11115 );
11116 (start..end, display_map.fold_placeholder.clone())
11117 } else {
11118 (s.start..s.end, display_map.fold_placeholder.clone())
11119 }
11120 });
11121 self.fold_ranges(ranges, true, cx);
11122 }
11123
11124 pub fn fold_ranges<T: ToOffset + Clone>(
11125 &mut self,
11126 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
11127 auto_scroll: bool,
11128 cx: &mut ViewContext<Self>,
11129 ) {
11130 let mut fold_ranges = Vec::new();
11131 let mut buffers_affected = HashMap::default();
11132 let multi_buffer = self.buffer().read(cx);
11133 for (fold_range, fold_text) in ranges {
11134 if let Some((_, buffer, _)) =
11135 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
11136 {
11137 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11138 };
11139 fold_ranges.push((fold_range, fold_text));
11140 }
11141
11142 let mut ranges = fold_ranges.into_iter().peekable();
11143 if ranges.peek().is_some() {
11144 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
11145
11146 if auto_scroll {
11147 self.request_autoscroll(Autoscroll::fit(), cx);
11148 }
11149
11150 for buffer in buffers_affected.into_values() {
11151 self.sync_expanded_diff_hunks(buffer, cx);
11152 }
11153
11154 cx.notify();
11155
11156 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11157 // Clear diagnostics block when folding a range that contains it.
11158 let snapshot = self.snapshot(cx);
11159 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11160 drop(snapshot);
11161 self.active_diagnostics = Some(active_diagnostics);
11162 self.dismiss_diagnostics(cx);
11163 } else {
11164 self.active_diagnostics = Some(active_diagnostics);
11165 }
11166 }
11167
11168 self.scrollbar_marker_state.dirty = true;
11169 }
11170 }
11171
11172 /// Removes any folds whose ranges intersect any of the given ranges.
11173 pub fn unfold_ranges<T: ToOffset + Clone>(
11174 &mut self,
11175 ranges: &[Range<T>],
11176 inclusive: bool,
11177 auto_scroll: bool,
11178 cx: &mut ViewContext<Self>,
11179 ) {
11180 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11181 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
11182 });
11183 }
11184
11185 /// Removes any folds with the given ranges.
11186 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11187 &mut self,
11188 ranges: &[Range<T>],
11189 type_id: TypeId,
11190 auto_scroll: bool,
11191 cx: &mut ViewContext<Self>,
11192 ) {
11193 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11194 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11195 });
11196 }
11197
11198 fn remove_folds_with<T: ToOffset + Clone>(
11199 &mut self,
11200 ranges: &[Range<T>],
11201 auto_scroll: bool,
11202 cx: &mut ViewContext<Self>,
11203 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11204 ) {
11205 if ranges.is_empty() {
11206 return;
11207 }
11208
11209 let mut buffers_affected = HashMap::default();
11210 let multi_buffer = self.buffer().read(cx);
11211 for range in ranges {
11212 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11213 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11214 };
11215 }
11216
11217 self.display_map.update(cx, update);
11218 if auto_scroll {
11219 self.request_autoscroll(Autoscroll::fit(), cx);
11220 }
11221
11222 for buffer in buffers_affected.into_values() {
11223 self.sync_expanded_diff_hunks(buffer, cx);
11224 }
11225
11226 cx.notify();
11227 self.scrollbar_marker_state.dirty = true;
11228 self.active_indent_guides_state.dirty = true;
11229 }
11230
11231 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11232 self.display_map.read(cx).fold_placeholder.clone()
11233 }
11234
11235 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11236 if hovered != self.gutter_hovered {
11237 self.gutter_hovered = hovered;
11238 cx.notify();
11239 }
11240 }
11241
11242 pub fn insert_blocks(
11243 &mut self,
11244 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11245 autoscroll: Option<Autoscroll>,
11246 cx: &mut ViewContext<Self>,
11247 ) -> Vec<CustomBlockId> {
11248 let blocks = self
11249 .display_map
11250 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11251 if let Some(autoscroll) = autoscroll {
11252 self.request_autoscroll(autoscroll, cx);
11253 }
11254 cx.notify();
11255 blocks
11256 }
11257
11258 pub fn resize_blocks(
11259 &mut self,
11260 heights: HashMap<CustomBlockId, u32>,
11261 autoscroll: Option<Autoscroll>,
11262 cx: &mut ViewContext<Self>,
11263 ) {
11264 self.display_map
11265 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11266 if let Some(autoscroll) = autoscroll {
11267 self.request_autoscroll(autoscroll, cx);
11268 }
11269 cx.notify();
11270 }
11271
11272 pub fn replace_blocks(
11273 &mut self,
11274 renderers: HashMap<CustomBlockId, RenderBlock>,
11275 autoscroll: Option<Autoscroll>,
11276 cx: &mut ViewContext<Self>,
11277 ) {
11278 self.display_map
11279 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11280 if let Some(autoscroll) = autoscroll {
11281 self.request_autoscroll(autoscroll, cx);
11282 }
11283 cx.notify();
11284 }
11285
11286 pub fn remove_blocks(
11287 &mut self,
11288 block_ids: HashSet<CustomBlockId>,
11289 autoscroll: Option<Autoscroll>,
11290 cx: &mut ViewContext<Self>,
11291 ) {
11292 self.display_map.update(cx, |display_map, cx| {
11293 display_map.remove_blocks(block_ids, cx)
11294 });
11295 if let Some(autoscroll) = autoscroll {
11296 self.request_autoscroll(autoscroll, cx);
11297 }
11298 cx.notify();
11299 }
11300
11301 pub fn row_for_block(
11302 &self,
11303 block_id: CustomBlockId,
11304 cx: &mut ViewContext<Self>,
11305 ) -> Option<DisplayRow> {
11306 self.display_map
11307 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11308 }
11309
11310 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11311 self.focused_block = Some(focused_block);
11312 }
11313
11314 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11315 self.focused_block.take()
11316 }
11317
11318 pub fn insert_creases(
11319 &mut self,
11320 creases: impl IntoIterator<Item = Crease>,
11321 cx: &mut ViewContext<Self>,
11322 ) -> Vec<CreaseId> {
11323 self.display_map
11324 .update(cx, |map, cx| map.insert_creases(creases, cx))
11325 }
11326
11327 pub fn remove_creases(
11328 &mut self,
11329 ids: impl IntoIterator<Item = CreaseId>,
11330 cx: &mut ViewContext<Self>,
11331 ) {
11332 self.display_map
11333 .update(cx, |map, cx| map.remove_creases(ids, cx));
11334 }
11335
11336 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11337 self.display_map
11338 .update(cx, |map, cx| map.snapshot(cx))
11339 .longest_row()
11340 }
11341
11342 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11343 self.display_map
11344 .update(cx, |map, cx| map.snapshot(cx))
11345 .max_point()
11346 }
11347
11348 pub fn text(&self, cx: &AppContext) -> String {
11349 self.buffer.read(cx).read(cx).text()
11350 }
11351
11352 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11353 let text = self.text(cx);
11354 let text = text.trim();
11355
11356 if text.is_empty() {
11357 return None;
11358 }
11359
11360 Some(text.to_string())
11361 }
11362
11363 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11364 self.transact(cx, |this, cx| {
11365 this.buffer
11366 .read(cx)
11367 .as_singleton()
11368 .expect("you can only call set_text on editors for singleton buffers")
11369 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11370 });
11371 }
11372
11373 pub fn display_text(&self, cx: &mut AppContext) -> String {
11374 self.display_map
11375 .update(cx, |map, cx| map.snapshot(cx))
11376 .text()
11377 }
11378
11379 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11380 let mut wrap_guides = smallvec::smallvec![];
11381
11382 if self.show_wrap_guides == Some(false) {
11383 return wrap_guides;
11384 }
11385
11386 let settings = self.buffer.read(cx).settings_at(0, cx);
11387 if settings.show_wrap_guides {
11388 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11389 wrap_guides.push((soft_wrap as usize, true));
11390 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11391 wrap_guides.push((soft_wrap as usize, true));
11392 }
11393 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11394 }
11395
11396 wrap_guides
11397 }
11398
11399 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11400 let settings = self.buffer.read(cx).settings_at(0, cx);
11401 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11402 match mode {
11403 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11404 SoftWrap::None
11405 }
11406 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11407 language_settings::SoftWrap::PreferredLineLength => {
11408 SoftWrap::Column(settings.preferred_line_length)
11409 }
11410 language_settings::SoftWrap::Bounded => {
11411 SoftWrap::Bounded(settings.preferred_line_length)
11412 }
11413 }
11414 }
11415
11416 pub fn set_soft_wrap_mode(
11417 &mut self,
11418 mode: language_settings::SoftWrap,
11419 cx: &mut ViewContext<Self>,
11420 ) {
11421 self.soft_wrap_mode_override = Some(mode);
11422 cx.notify();
11423 }
11424
11425 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11426 self.text_style_refinement = Some(style);
11427 }
11428
11429 /// called by the Element so we know what style we were most recently rendered with.
11430 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11431 let rem_size = cx.rem_size();
11432 self.display_map.update(cx, |map, cx| {
11433 map.set_font(
11434 style.text.font(),
11435 style.text.font_size.to_pixels(rem_size),
11436 cx,
11437 )
11438 });
11439 self.style = Some(style);
11440 }
11441
11442 pub fn style(&self) -> Option<&EditorStyle> {
11443 self.style.as_ref()
11444 }
11445
11446 // Called by the element. This method is not designed to be called outside of the editor
11447 // element's layout code because it does not notify when rewrapping is computed synchronously.
11448 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11449 self.display_map
11450 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11451 }
11452
11453 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11454 if self.soft_wrap_mode_override.is_some() {
11455 self.soft_wrap_mode_override.take();
11456 } else {
11457 let soft_wrap = match self.soft_wrap_mode(cx) {
11458 SoftWrap::GitDiff => return,
11459 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11460 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11461 language_settings::SoftWrap::None
11462 }
11463 };
11464 self.soft_wrap_mode_override = Some(soft_wrap);
11465 }
11466 cx.notify();
11467 }
11468
11469 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11470 let Some(workspace) = self.workspace() else {
11471 return;
11472 };
11473 let fs = workspace.read(cx).app_state().fs.clone();
11474 let current_show = TabBarSettings::get_global(cx).show;
11475 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11476 setting.show = Some(!current_show);
11477 });
11478 }
11479
11480 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11481 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11482 self.buffer
11483 .read(cx)
11484 .settings_at(0, cx)
11485 .indent_guides
11486 .enabled
11487 });
11488 self.show_indent_guides = Some(!currently_enabled);
11489 cx.notify();
11490 }
11491
11492 fn should_show_indent_guides(&self) -> Option<bool> {
11493 self.show_indent_guides
11494 }
11495
11496 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11497 let mut editor_settings = EditorSettings::get_global(cx).clone();
11498 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11499 EditorSettings::override_global(editor_settings, cx);
11500 }
11501
11502 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11503 self.use_relative_line_numbers
11504 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11505 }
11506
11507 pub fn toggle_relative_line_numbers(
11508 &mut self,
11509 _: &ToggleRelativeLineNumbers,
11510 cx: &mut ViewContext<Self>,
11511 ) {
11512 let is_relative = self.should_use_relative_line_numbers(cx);
11513 self.set_relative_line_number(Some(!is_relative), cx)
11514 }
11515
11516 pub fn set_relative_line_number(
11517 &mut self,
11518 is_relative: Option<bool>,
11519 cx: &mut ViewContext<Self>,
11520 ) {
11521 self.use_relative_line_numbers = is_relative;
11522 cx.notify();
11523 }
11524
11525 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11526 self.show_gutter = show_gutter;
11527 cx.notify();
11528 }
11529
11530 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11531 self.show_line_numbers = Some(show_line_numbers);
11532 cx.notify();
11533 }
11534
11535 pub fn set_show_git_diff_gutter(
11536 &mut self,
11537 show_git_diff_gutter: bool,
11538 cx: &mut ViewContext<Self>,
11539 ) {
11540 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11541 cx.notify();
11542 }
11543
11544 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11545 self.show_code_actions = Some(show_code_actions);
11546 cx.notify();
11547 }
11548
11549 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11550 self.show_runnables = Some(show_runnables);
11551 cx.notify();
11552 }
11553
11554 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11555 if self.display_map.read(cx).masked != masked {
11556 self.display_map.update(cx, |map, _| map.masked = masked);
11557 }
11558 cx.notify()
11559 }
11560
11561 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11562 self.show_wrap_guides = Some(show_wrap_guides);
11563 cx.notify();
11564 }
11565
11566 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11567 self.show_indent_guides = Some(show_indent_guides);
11568 cx.notify();
11569 }
11570
11571 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11572 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11573 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11574 if let Some(dir) = file.abs_path(cx).parent() {
11575 return Some(dir.to_owned());
11576 }
11577 }
11578
11579 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11580 return Some(project_path.path.to_path_buf());
11581 }
11582 }
11583
11584 None
11585 }
11586
11587 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11588 self.active_excerpt(cx)?
11589 .1
11590 .read(cx)
11591 .file()
11592 .and_then(|f| f.as_local())
11593 }
11594
11595 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11596 if let Some(target) = self.target_file(cx) {
11597 cx.reveal_path(&target.abs_path(cx));
11598 }
11599 }
11600
11601 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11602 if let Some(file) = self.target_file(cx) {
11603 if let Some(path) = file.abs_path(cx).to_str() {
11604 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11605 }
11606 }
11607 }
11608
11609 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11610 if let Some(file) = self.target_file(cx) {
11611 if let Some(path) = file.path().to_str() {
11612 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11613 }
11614 }
11615 }
11616
11617 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11618 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11619
11620 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11621 self.start_git_blame(true, cx);
11622 }
11623
11624 cx.notify();
11625 }
11626
11627 pub fn toggle_git_blame_inline(
11628 &mut self,
11629 _: &ToggleGitBlameInline,
11630 cx: &mut ViewContext<Self>,
11631 ) {
11632 self.toggle_git_blame_inline_internal(true, cx);
11633 cx.notify();
11634 }
11635
11636 pub fn git_blame_inline_enabled(&self) -> bool {
11637 self.git_blame_inline_enabled
11638 }
11639
11640 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11641 self.show_selection_menu = self
11642 .show_selection_menu
11643 .map(|show_selections_menu| !show_selections_menu)
11644 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11645
11646 cx.notify();
11647 }
11648
11649 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11650 self.show_selection_menu
11651 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11652 }
11653
11654 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11655 if let Some(project) = self.project.as_ref() {
11656 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11657 return;
11658 };
11659
11660 if buffer.read(cx).file().is_none() {
11661 return;
11662 }
11663
11664 let focused = self.focus_handle(cx).contains_focused(cx);
11665
11666 let project = project.clone();
11667 let blame =
11668 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11669 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11670 self.blame = Some(blame);
11671 }
11672 }
11673
11674 fn toggle_git_blame_inline_internal(
11675 &mut self,
11676 user_triggered: bool,
11677 cx: &mut ViewContext<Self>,
11678 ) {
11679 if self.git_blame_inline_enabled {
11680 self.git_blame_inline_enabled = false;
11681 self.show_git_blame_inline = false;
11682 self.show_git_blame_inline_delay_task.take();
11683 } else {
11684 self.git_blame_inline_enabled = true;
11685 self.start_git_blame_inline(user_triggered, cx);
11686 }
11687
11688 cx.notify();
11689 }
11690
11691 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11692 self.start_git_blame(user_triggered, cx);
11693
11694 if ProjectSettings::get_global(cx)
11695 .git
11696 .inline_blame_delay()
11697 .is_some()
11698 {
11699 self.start_inline_blame_timer(cx);
11700 } else {
11701 self.show_git_blame_inline = true
11702 }
11703 }
11704
11705 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11706 self.blame.as_ref()
11707 }
11708
11709 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11710 self.show_git_blame_gutter && self.has_blame_entries(cx)
11711 }
11712
11713 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11714 self.show_git_blame_inline
11715 && self.focus_handle.is_focused(cx)
11716 && !self.newest_selection_head_on_empty_line(cx)
11717 && self.has_blame_entries(cx)
11718 }
11719
11720 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11721 self.blame()
11722 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11723 }
11724
11725 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11726 let cursor_anchor = self.selections.newest_anchor().head();
11727
11728 let snapshot = self.buffer.read(cx).snapshot(cx);
11729 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11730
11731 snapshot.line_len(buffer_row) == 0
11732 }
11733
11734 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11735 let buffer_and_selection = maybe!({
11736 let selection = self.selections.newest::<Point>(cx);
11737 let selection_range = selection.range();
11738
11739 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11740 (buffer, selection_range.start.row..selection_range.end.row)
11741 } else {
11742 let buffer_ranges = self
11743 .buffer()
11744 .read(cx)
11745 .range_to_buffer_ranges(selection_range, cx);
11746
11747 let (buffer, range, _) = if selection.reversed {
11748 buffer_ranges.first()
11749 } else {
11750 buffer_ranges.last()
11751 }?;
11752
11753 let snapshot = buffer.read(cx).snapshot();
11754 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11755 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11756 (buffer.clone(), selection)
11757 };
11758
11759 Some((buffer, selection))
11760 });
11761
11762 let Some((buffer, selection)) = buffer_and_selection else {
11763 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11764 };
11765
11766 let Some(project) = self.project.as_ref() else {
11767 return Task::ready(Err(anyhow!("editor does not have project")));
11768 };
11769
11770 project.update(cx, |project, cx| {
11771 project.get_permalink_to_line(&buffer, selection, cx)
11772 })
11773 }
11774
11775 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11776 let permalink_task = self.get_permalink_to_line(cx);
11777 let workspace = self.workspace();
11778
11779 cx.spawn(|_, mut cx| async move {
11780 match permalink_task.await {
11781 Ok(permalink) => {
11782 cx.update(|cx| {
11783 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11784 })
11785 .ok();
11786 }
11787 Err(err) => {
11788 let message = format!("Failed to copy permalink: {err}");
11789
11790 Err::<(), anyhow::Error>(err).log_err();
11791
11792 if let Some(workspace) = workspace {
11793 workspace
11794 .update(&mut cx, |workspace, cx| {
11795 struct CopyPermalinkToLine;
11796
11797 workspace.show_toast(
11798 Toast::new(
11799 NotificationId::unique::<CopyPermalinkToLine>(),
11800 message,
11801 ),
11802 cx,
11803 )
11804 })
11805 .ok();
11806 }
11807 }
11808 }
11809 })
11810 .detach();
11811 }
11812
11813 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11814 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11815 if let Some(file) = self.target_file(cx) {
11816 if let Some(path) = file.path().to_str() {
11817 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11818 }
11819 }
11820 }
11821
11822 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11823 let permalink_task = self.get_permalink_to_line(cx);
11824 let workspace = self.workspace();
11825
11826 cx.spawn(|_, mut cx| async move {
11827 match permalink_task.await {
11828 Ok(permalink) => {
11829 cx.update(|cx| {
11830 cx.open_url(permalink.as_ref());
11831 })
11832 .ok();
11833 }
11834 Err(err) => {
11835 let message = format!("Failed to open permalink: {err}");
11836
11837 Err::<(), anyhow::Error>(err).log_err();
11838
11839 if let Some(workspace) = workspace {
11840 workspace
11841 .update(&mut cx, |workspace, cx| {
11842 struct OpenPermalinkToLine;
11843
11844 workspace.show_toast(
11845 Toast::new(
11846 NotificationId::unique::<OpenPermalinkToLine>(),
11847 message,
11848 ),
11849 cx,
11850 )
11851 })
11852 .ok();
11853 }
11854 }
11855 }
11856 })
11857 .detach();
11858 }
11859
11860 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11861 /// last highlight added will be used.
11862 ///
11863 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11864 pub fn highlight_rows<T: 'static>(
11865 &mut self,
11866 range: Range<Anchor>,
11867 color: Hsla,
11868 should_autoscroll: bool,
11869 cx: &mut ViewContext<Self>,
11870 ) {
11871 let snapshot = self.buffer().read(cx).snapshot(cx);
11872 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11873 let ix = row_highlights.binary_search_by(|highlight| {
11874 Ordering::Equal
11875 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11876 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11877 });
11878
11879 if let Err(mut ix) = ix {
11880 let index = post_inc(&mut self.highlight_order);
11881
11882 // If this range intersects with the preceding highlight, then merge it with
11883 // the preceding highlight. Otherwise insert a new highlight.
11884 let mut merged = false;
11885 if ix > 0 {
11886 let prev_highlight = &mut row_highlights[ix - 1];
11887 if prev_highlight
11888 .range
11889 .end
11890 .cmp(&range.start, &snapshot)
11891 .is_ge()
11892 {
11893 ix -= 1;
11894 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11895 prev_highlight.range.end = range.end;
11896 }
11897 merged = true;
11898 prev_highlight.index = index;
11899 prev_highlight.color = color;
11900 prev_highlight.should_autoscroll = should_autoscroll;
11901 }
11902 }
11903
11904 if !merged {
11905 row_highlights.insert(
11906 ix,
11907 RowHighlight {
11908 range: range.clone(),
11909 index,
11910 color,
11911 should_autoscroll,
11912 },
11913 );
11914 }
11915
11916 // If any of the following highlights intersect with this one, merge them.
11917 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11918 let highlight = &row_highlights[ix];
11919 if next_highlight
11920 .range
11921 .start
11922 .cmp(&highlight.range.end, &snapshot)
11923 .is_le()
11924 {
11925 if next_highlight
11926 .range
11927 .end
11928 .cmp(&highlight.range.end, &snapshot)
11929 .is_gt()
11930 {
11931 row_highlights[ix].range.end = next_highlight.range.end;
11932 }
11933 row_highlights.remove(ix + 1);
11934 } else {
11935 break;
11936 }
11937 }
11938 }
11939 }
11940
11941 /// Remove any highlighted row ranges of the given type that intersect the
11942 /// given ranges.
11943 pub fn remove_highlighted_rows<T: 'static>(
11944 &mut self,
11945 ranges_to_remove: Vec<Range<Anchor>>,
11946 cx: &mut ViewContext<Self>,
11947 ) {
11948 let snapshot = self.buffer().read(cx).snapshot(cx);
11949 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11950 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11951 row_highlights.retain(|highlight| {
11952 while let Some(range_to_remove) = ranges_to_remove.peek() {
11953 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11954 Ordering::Less | Ordering::Equal => {
11955 ranges_to_remove.next();
11956 }
11957 Ordering::Greater => {
11958 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11959 Ordering::Less | Ordering::Equal => {
11960 return false;
11961 }
11962 Ordering::Greater => break,
11963 }
11964 }
11965 }
11966 }
11967
11968 true
11969 })
11970 }
11971
11972 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11973 pub fn clear_row_highlights<T: 'static>(&mut self) {
11974 self.highlighted_rows.remove(&TypeId::of::<T>());
11975 }
11976
11977 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11978 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11979 self.highlighted_rows
11980 .get(&TypeId::of::<T>())
11981 .map_or(&[] as &[_], |vec| vec.as_slice())
11982 .iter()
11983 .map(|highlight| (highlight.range.clone(), highlight.color))
11984 }
11985
11986 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11987 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11988 /// Allows to ignore certain kinds of highlights.
11989 pub fn highlighted_display_rows(
11990 &mut self,
11991 cx: &mut WindowContext,
11992 ) -> BTreeMap<DisplayRow, Hsla> {
11993 let snapshot = self.snapshot(cx);
11994 let mut used_highlight_orders = HashMap::default();
11995 self.highlighted_rows
11996 .iter()
11997 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11998 .fold(
11999 BTreeMap::<DisplayRow, Hsla>::new(),
12000 |mut unique_rows, highlight| {
12001 let start = highlight.range.start.to_display_point(&snapshot);
12002 let end = highlight.range.end.to_display_point(&snapshot);
12003 let start_row = start.row().0;
12004 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
12005 && end.column() == 0
12006 {
12007 end.row().0.saturating_sub(1)
12008 } else {
12009 end.row().0
12010 };
12011 for row in start_row..=end_row {
12012 let used_index =
12013 used_highlight_orders.entry(row).or_insert(highlight.index);
12014 if highlight.index >= *used_index {
12015 *used_index = highlight.index;
12016 unique_rows.insert(DisplayRow(row), highlight.color);
12017 }
12018 }
12019 unique_rows
12020 },
12021 )
12022 }
12023
12024 pub fn highlighted_display_row_for_autoscroll(
12025 &self,
12026 snapshot: &DisplaySnapshot,
12027 ) -> Option<DisplayRow> {
12028 self.highlighted_rows
12029 .values()
12030 .flat_map(|highlighted_rows| highlighted_rows.iter())
12031 .filter_map(|highlight| {
12032 if highlight.should_autoscroll {
12033 Some(highlight.range.start.to_display_point(snapshot).row())
12034 } else {
12035 None
12036 }
12037 })
12038 .min()
12039 }
12040
12041 pub fn set_search_within_ranges(
12042 &mut self,
12043 ranges: &[Range<Anchor>],
12044 cx: &mut ViewContext<Self>,
12045 ) {
12046 self.highlight_background::<SearchWithinRange>(
12047 ranges,
12048 |colors| colors.editor_document_highlight_read_background,
12049 cx,
12050 )
12051 }
12052
12053 pub fn set_breadcrumb_header(&mut self, new_header: String) {
12054 self.breadcrumb_header = Some(new_header);
12055 }
12056
12057 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12058 self.clear_background_highlights::<SearchWithinRange>(cx);
12059 }
12060
12061 pub fn highlight_background<T: 'static>(
12062 &mut self,
12063 ranges: &[Range<Anchor>],
12064 color_fetcher: fn(&ThemeColors) -> Hsla,
12065 cx: &mut ViewContext<Self>,
12066 ) {
12067 self.background_highlights
12068 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12069 self.scrollbar_marker_state.dirty = true;
12070 cx.notify();
12071 }
12072
12073 pub fn clear_background_highlights<T: 'static>(
12074 &mut self,
12075 cx: &mut ViewContext<Self>,
12076 ) -> Option<BackgroundHighlight> {
12077 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12078 if !text_highlights.1.is_empty() {
12079 self.scrollbar_marker_state.dirty = true;
12080 cx.notify();
12081 }
12082 Some(text_highlights)
12083 }
12084
12085 pub fn highlight_gutter<T: 'static>(
12086 &mut self,
12087 ranges: &[Range<Anchor>],
12088 color_fetcher: fn(&AppContext) -> Hsla,
12089 cx: &mut ViewContext<Self>,
12090 ) {
12091 self.gutter_highlights
12092 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12093 cx.notify();
12094 }
12095
12096 pub fn clear_gutter_highlights<T: 'static>(
12097 &mut self,
12098 cx: &mut ViewContext<Self>,
12099 ) -> Option<GutterHighlight> {
12100 cx.notify();
12101 self.gutter_highlights.remove(&TypeId::of::<T>())
12102 }
12103
12104 #[cfg(feature = "test-support")]
12105 pub fn all_text_background_highlights(
12106 &mut self,
12107 cx: &mut ViewContext<Self>,
12108 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12109 let snapshot = self.snapshot(cx);
12110 let buffer = &snapshot.buffer_snapshot;
12111 let start = buffer.anchor_before(0);
12112 let end = buffer.anchor_after(buffer.len());
12113 let theme = cx.theme().colors();
12114 self.background_highlights_in_range(start..end, &snapshot, theme)
12115 }
12116
12117 #[cfg(feature = "test-support")]
12118 pub fn search_background_highlights(
12119 &mut self,
12120 cx: &mut ViewContext<Self>,
12121 ) -> Vec<Range<Point>> {
12122 let snapshot = self.buffer().read(cx).snapshot(cx);
12123
12124 let highlights = self
12125 .background_highlights
12126 .get(&TypeId::of::<items::BufferSearchHighlights>());
12127
12128 if let Some((_color, ranges)) = highlights {
12129 ranges
12130 .iter()
12131 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12132 .collect_vec()
12133 } else {
12134 vec![]
12135 }
12136 }
12137
12138 fn document_highlights_for_position<'a>(
12139 &'a self,
12140 position: Anchor,
12141 buffer: &'a MultiBufferSnapshot,
12142 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12143 let read_highlights = self
12144 .background_highlights
12145 .get(&TypeId::of::<DocumentHighlightRead>())
12146 .map(|h| &h.1);
12147 let write_highlights = self
12148 .background_highlights
12149 .get(&TypeId::of::<DocumentHighlightWrite>())
12150 .map(|h| &h.1);
12151 let left_position = position.bias_left(buffer);
12152 let right_position = position.bias_right(buffer);
12153 read_highlights
12154 .into_iter()
12155 .chain(write_highlights)
12156 .flat_map(move |ranges| {
12157 let start_ix = match ranges.binary_search_by(|probe| {
12158 let cmp = probe.end.cmp(&left_position, buffer);
12159 if cmp.is_ge() {
12160 Ordering::Greater
12161 } else {
12162 Ordering::Less
12163 }
12164 }) {
12165 Ok(i) | Err(i) => i,
12166 };
12167
12168 ranges[start_ix..]
12169 .iter()
12170 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12171 })
12172 }
12173
12174 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12175 self.background_highlights
12176 .get(&TypeId::of::<T>())
12177 .map_or(false, |(_, highlights)| !highlights.is_empty())
12178 }
12179
12180 pub fn background_highlights_in_range(
12181 &self,
12182 search_range: Range<Anchor>,
12183 display_snapshot: &DisplaySnapshot,
12184 theme: &ThemeColors,
12185 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12186 let mut results = Vec::new();
12187 for (color_fetcher, ranges) in self.background_highlights.values() {
12188 let color = color_fetcher(theme);
12189 let start_ix = match ranges.binary_search_by(|probe| {
12190 let cmp = probe
12191 .end
12192 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12193 if cmp.is_gt() {
12194 Ordering::Greater
12195 } else {
12196 Ordering::Less
12197 }
12198 }) {
12199 Ok(i) | Err(i) => i,
12200 };
12201 for range in &ranges[start_ix..] {
12202 if range
12203 .start
12204 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12205 .is_ge()
12206 {
12207 break;
12208 }
12209
12210 let start = range.start.to_display_point(display_snapshot);
12211 let end = range.end.to_display_point(display_snapshot);
12212 results.push((start..end, color))
12213 }
12214 }
12215 results
12216 }
12217
12218 pub fn background_highlight_row_ranges<T: 'static>(
12219 &self,
12220 search_range: Range<Anchor>,
12221 display_snapshot: &DisplaySnapshot,
12222 count: usize,
12223 ) -> Vec<RangeInclusive<DisplayPoint>> {
12224 let mut results = Vec::new();
12225 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12226 return vec![];
12227 };
12228
12229 let start_ix = match ranges.binary_search_by(|probe| {
12230 let cmp = probe
12231 .end
12232 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12233 if cmp.is_gt() {
12234 Ordering::Greater
12235 } else {
12236 Ordering::Less
12237 }
12238 }) {
12239 Ok(i) | Err(i) => i,
12240 };
12241 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12242 if let (Some(start_display), Some(end_display)) = (start, end) {
12243 results.push(
12244 start_display.to_display_point(display_snapshot)
12245 ..=end_display.to_display_point(display_snapshot),
12246 );
12247 }
12248 };
12249 let mut start_row: Option<Point> = None;
12250 let mut end_row: Option<Point> = None;
12251 if ranges.len() > count {
12252 return Vec::new();
12253 }
12254 for range in &ranges[start_ix..] {
12255 if range
12256 .start
12257 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12258 .is_ge()
12259 {
12260 break;
12261 }
12262 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12263 if let Some(current_row) = &end_row {
12264 if end.row == current_row.row {
12265 continue;
12266 }
12267 }
12268 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12269 if start_row.is_none() {
12270 assert_eq!(end_row, None);
12271 start_row = Some(start);
12272 end_row = Some(end);
12273 continue;
12274 }
12275 if let Some(current_end) = end_row.as_mut() {
12276 if start.row > current_end.row + 1 {
12277 push_region(start_row, end_row);
12278 start_row = Some(start);
12279 end_row = Some(end);
12280 } else {
12281 // Merge two hunks.
12282 *current_end = end;
12283 }
12284 } else {
12285 unreachable!();
12286 }
12287 }
12288 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12289 push_region(start_row, end_row);
12290 results
12291 }
12292
12293 pub fn gutter_highlights_in_range(
12294 &self,
12295 search_range: Range<Anchor>,
12296 display_snapshot: &DisplaySnapshot,
12297 cx: &AppContext,
12298 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12299 let mut results = Vec::new();
12300 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12301 let color = color_fetcher(cx);
12302 let start_ix = match ranges.binary_search_by(|probe| {
12303 let cmp = probe
12304 .end
12305 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12306 if cmp.is_gt() {
12307 Ordering::Greater
12308 } else {
12309 Ordering::Less
12310 }
12311 }) {
12312 Ok(i) | Err(i) => i,
12313 };
12314 for range in &ranges[start_ix..] {
12315 if range
12316 .start
12317 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12318 .is_ge()
12319 {
12320 break;
12321 }
12322
12323 let start = range.start.to_display_point(display_snapshot);
12324 let end = range.end.to_display_point(display_snapshot);
12325 results.push((start..end, color))
12326 }
12327 }
12328 results
12329 }
12330
12331 /// Get the text ranges corresponding to the redaction query
12332 pub fn redacted_ranges(
12333 &self,
12334 search_range: Range<Anchor>,
12335 display_snapshot: &DisplaySnapshot,
12336 cx: &WindowContext,
12337 ) -> Vec<Range<DisplayPoint>> {
12338 display_snapshot
12339 .buffer_snapshot
12340 .redacted_ranges(search_range, |file| {
12341 if let Some(file) = file {
12342 file.is_private()
12343 && EditorSettings::get(
12344 Some(SettingsLocation {
12345 worktree_id: file.worktree_id(cx),
12346 path: file.path().as_ref(),
12347 }),
12348 cx,
12349 )
12350 .redact_private_values
12351 } else {
12352 false
12353 }
12354 })
12355 .map(|range| {
12356 range.start.to_display_point(display_snapshot)
12357 ..range.end.to_display_point(display_snapshot)
12358 })
12359 .collect()
12360 }
12361
12362 pub fn highlight_text<T: 'static>(
12363 &mut self,
12364 ranges: Vec<Range<Anchor>>,
12365 style: HighlightStyle,
12366 cx: &mut ViewContext<Self>,
12367 ) {
12368 self.display_map.update(cx, |map, _| {
12369 map.highlight_text(TypeId::of::<T>(), ranges, style)
12370 });
12371 cx.notify();
12372 }
12373
12374 pub(crate) fn highlight_inlays<T: 'static>(
12375 &mut self,
12376 highlights: Vec<InlayHighlight>,
12377 style: HighlightStyle,
12378 cx: &mut ViewContext<Self>,
12379 ) {
12380 self.display_map.update(cx, |map, _| {
12381 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12382 });
12383 cx.notify();
12384 }
12385
12386 pub fn text_highlights<'a, T: 'static>(
12387 &'a self,
12388 cx: &'a AppContext,
12389 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12390 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12391 }
12392
12393 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12394 let cleared = self
12395 .display_map
12396 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12397 if cleared {
12398 cx.notify();
12399 }
12400 }
12401
12402 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12403 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12404 && self.focus_handle.is_focused(cx)
12405 }
12406
12407 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12408 self.show_cursor_when_unfocused = is_enabled;
12409 cx.notify();
12410 }
12411
12412 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12413 cx.notify();
12414 }
12415
12416 fn on_buffer_event(
12417 &mut self,
12418 multibuffer: Model<MultiBuffer>,
12419 event: &multi_buffer::Event,
12420 cx: &mut ViewContext<Self>,
12421 ) {
12422 match event {
12423 multi_buffer::Event::Edited {
12424 singleton_buffer_edited,
12425 } => {
12426 self.scrollbar_marker_state.dirty = true;
12427 self.active_indent_guides_state.dirty = true;
12428 self.refresh_active_diagnostics(cx);
12429 self.refresh_code_actions(cx);
12430 if self.has_active_inline_completion(cx) {
12431 self.update_visible_inline_completion(cx);
12432 }
12433 cx.emit(EditorEvent::BufferEdited);
12434 cx.emit(SearchEvent::MatchesInvalidated);
12435 if *singleton_buffer_edited {
12436 if let Some(project) = &self.project {
12437 let project = project.read(cx);
12438 #[allow(clippy::mutable_key_type)]
12439 let languages_affected = multibuffer
12440 .read(cx)
12441 .all_buffers()
12442 .into_iter()
12443 .filter_map(|buffer| {
12444 let buffer = buffer.read(cx);
12445 let language = buffer.language()?;
12446 if project.is_local()
12447 && project.language_servers_for_buffer(buffer, cx).count() == 0
12448 {
12449 None
12450 } else {
12451 Some(language)
12452 }
12453 })
12454 .cloned()
12455 .collect::<HashSet<_>>();
12456 if !languages_affected.is_empty() {
12457 self.refresh_inlay_hints(
12458 InlayHintRefreshReason::BufferEdited(languages_affected),
12459 cx,
12460 );
12461 }
12462 }
12463 }
12464
12465 let Some(project) = &self.project else { return };
12466 let (telemetry, is_via_ssh) = {
12467 let project = project.read(cx);
12468 let telemetry = project.client().telemetry().clone();
12469 let is_via_ssh = project.is_via_ssh();
12470 (telemetry, is_via_ssh)
12471 };
12472 refresh_linked_ranges(self, cx);
12473 telemetry.log_edit_event("editor", is_via_ssh);
12474 }
12475 multi_buffer::Event::ExcerptsAdded {
12476 buffer,
12477 predecessor,
12478 excerpts,
12479 } => {
12480 self.tasks_update_task = Some(self.refresh_runnables(cx));
12481 cx.emit(EditorEvent::ExcerptsAdded {
12482 buffer: buffer.clone(),
12483 predecessor: *predecessor,
12484 excerpts: excerpts.clone(),
12485 });
12486 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12487 }
12488 multi_buffer::Event::ExcerptsRemoved { ids } => {
12489 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12490 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12491 }
12492 multi_buffer::Event::ExcerptsEdited { ids } => {
12493 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12494 }
12495 multi_buffer::Event::ExcerptsExpanded { ids } => {
12496 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12497 }
12498 multi_buffer::Event::Reparsed(buffer_id) => {
12499 self.tasks_update_task = Some(self.refresh_runnables(cx));
12500
12501 cx.emit(EditorEvent::Reparsed(*buffer_id));
12502 }
12503 multi_buffer::Event::LanguageChanged(buffer_id) => {
12504 linked_editing_ranges::refresh_linked_ranges(self, cx);
12505 cx.emit(EditorEvent::Reparsed(*buffer_id));
12506 cx.notify();
12507 }
12508 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12509 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12510 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12511 cx.emit(EditorEvent::TitleChanged)
12512 }
12513 multi_buffer::Event::DiffBaseChanged => {
12514 self.scrollbar_marker_state.dirty = true;
12515 cx.emit(EditorEvent::DiffBaseChanged);
12516 cx.notify();
12517 }
12518 multi_buffer::Event::DiffUpdated { buffer } => {
12519 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12520 cx.notify();
12521 }
12522 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12523 multi_buffer::Event::DiagnosticsUpdated => {
12524 self.refresh_active_diagnostics(cx);
12525 self.scrollbar_marker_state.dirty = true;
12526 cx.notify();
12527 }
12528 _ => {}
12529 };
12530 }
12531
12532 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12533 cx.notify();
12534 }
12535
12536 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12537 self.tasks_update_task = Some(self.refresh_runnables(cx));
12538 self.refresh_inline_completion(true, false, cx);
12539 self.refresh_inlay_hints(
12540 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12541 self.selections.newest_anchor().head(),
12542 &self.buffer.read(cx).snapshot(cx),
12543 cx,
12544 )),
12545 cx,
12546 );
12547
12548 let old_cursor_shape = self.cursor_shape;
12549
12550 {
12551 let editor_settings = EditorSettings::get_global(cx);
12552 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12553 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12554 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12555 }
12556
12557 if old_cursor_shape != self.cursor_shape {
12558 cx.emit(EditorEvent::CursorShapeChanged);
12559 }
12560
12561 let project_settings = ProjectSettings::get_global(cx);
12562 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12563
12564 if self.mode == EditorMode::Full {
12565 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12566 if self.git_blame_inline_enabled != inline_blame_enabled {
12567 self.toggle_git_blame_inline_internal(false, cx);
12568 }
12569 }
12570
12571 cx.notify();
12572 }
12573
12574 pub fn set_searchable(&mut self, searchable: bool) {
12575 self.searchable = searchable;
12576 }
12577
12578 pub fn searchable(&self) -> bool {
12579 self.searchable
12580 }
12581
12582 fn open_proposed_changes_editor(
12583 &mut self,
12584 _: &OpenProposedChangesEditor,
12585 cx: &mut ViewContext<Self>,
12586 ) {
12587 let Some(workspace) = self.workspace() else {
12588 cx.propagate();
12589 return;
12590 };
12591
12592 let selections = self.selections.all::<usize>(cx);
12593 let buffer = self.buffer.read(cx);
12594 let mut new_selections_by_buffer = HashMap::default();
12595 for selection in selections {
12596 for (buffer, range, _) in
12597 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12598 {
12599 let mut range = range.to_point(buffer.read(cx));
12600 range.start.column = 0;
12601 range.end.column = buffer.read(cx).line_len(range.end.row);
12602 new_selections_by_buffer
12603 .entry(buffer)
12604 .or_insert(Vec::new())
12605 .push(range)
12606 }
12607 }
12608
12609 let proposed_changes_buffers = new_selections_by_buffer
12610 .into_iter()
12611 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12612 .collect::<Vec<_>>();
12613 let proposed_changes_editor = cx.new_view(|cx| {
12614 ProposedChangesEditor::new(
12615 "Proposed changes",
12616 proposed_changes_buffers,
12617 self.project.clone(),
12618 cx,
12619 )
12620 });
12621
12622 cx.window_context().defer(move |cx| {
12623 workspace.update(cx, |workspace, cx| {
12624 workspace.active_pane().update(cx, |pane, cx| {
12625 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12626 });
12627 });
12628 });
12629 }
12630
12631 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12632 self.open_excerpts_common(None, true, cx)
12633 }
12634
12635 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12636 self.open_excerpts_common(None, false, cx)
12637 }
12638
12639 fn open_excerpts_common(
12640 &mut self,
12641 jump_data: Option<JumpData>,
12642 split: bool,
12643 cx: &mut ViewContext<Self>,
12644 ) {
12645 let Some(workspace) = self.workspace() else {
12646 cx.propagate();
12647 return;
12648 };
12649
12650 if self.buffer.read(cx).is_singleton() {
12651 cx.propagate();
12652 return;
12653 }
12654
12655 let mut new_selections_by_buffer = HashMap::default();
12656 match &jump_data {
12657 Some(jump_data) => {
12658 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12659 if let Some(buffer) = multi_buffer_snapshot
12660 .buffer_id_for_excerpt(jump_data.excerpt_id)
12661 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12662 {
12663 let buffer_snapshot = buffer.read(cx).snapshot();
12664 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12665 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12666 } else {
12667 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12668 };
12669 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12670 new_selections_by_buffer.insert(
12671 buffer,
12672 (
12673 vec![jump_to_offset..jump_to_offset],
12674 Some(jump_data.line_offset_from_top),
12675 ),
12676 );
12677 }
12678 }
12679 None => {
12680 let selections = self.selections.all::<usize>(cx);
12681 let buffer = self.buffer.read(cx);
12682 for selection in selections {
12683 for (mut buffer_handle, mut range, _) in
12684 buffer.range_to_buffer_ranges(selection.range(), cx)
12685 {
12686 // When editing branch buffers, jump to the corresponding location
12687 // in their base buffer.
12688 let buffer = buffer_handle.read(cx);
12689 if let Some(base_buffer) = buffer.diff_base_buffer() {
12690 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12691 buffer_handle = base_buffer;
12692 }
12693
12694 if selection.reversed {
12695 mem::swap(&mut range.start, &mut range.end);
12696 }
12697 new_selections_by_buffer
12698 .entry(buffer_handle)
12699 .or_insert((Vec::new(), None))
12700 .0
12701 .push(range)
12702 }
12703 }
12704 }
12705 }
12706
12707 if new_selections_by_buffer.is_empty() {
12708 return;
12709 }
12710
12711 // We defer the pane interaction because we ourselves are a workspace item
12712 // and activating a new item causes the pane to call a method on us reentrantly,
12713 // which panics if we're on the stack.
12714 cx.window_context().defer(move |cx| {
12715 workspace.update(cx, |workspace, cx| {
12716 let pane = if split {
12717 workspace.adjacent_pane(cx)
12718 } else {
12719 workspace.active_pane().clone()
12720 };
12721
12722 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12723 let editor =
12724 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12725 editor.update(cx, |editor, cx| {
12726 let autoscroll = match scroll_offset {
12727 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12728 None => Autoscroll::newest(),
12729 };
12730 let nav_history = editor.nav_history.take();
12731 editor.change_selections(Some(autoscroll), cx, |s| {
12732 s.select_ranges(ranges);
12733 });
12734 editor.nav_history = nav_history;
12735 });
12736 }
12737 })
12738 });
12739 }
12740
12741 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12742 let snapshot = self.buffer.read(cx).read(cx);
12743 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12744 Some(
12745 ranges
12746 .iter()
12747 .map(move |range| {
12748 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12749 })
12750 .collect(),
12751 )
12752 }
12753
12754 fn selection_replacement_ranges(
12755 &self,
12756 range: Range<OffsetUtf16>,
12757 cx: &mut AppContext,
12758 ) -> Vec<Range<OffsetUtf16>> {
12759 let selections = self.selections.all::<OffsetUtf16>(cx);
12760 let newest_selection = selections
12761 .iter()
12762 .max_by_key(|selection| selection.id)
12763 .unwrap();
12764 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12765 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12766 let snapshot = self.buffer.read(cx).read(cx);
12767 selections
12768 .into_iter()
12769 .map(|mut selection| {
12770 selection.start.0 =
12771 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12772 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12773 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12774 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12775 })
12776 .collect()
12777 }
12778
12779 fn report_editor_event(
12780 &self,
12781 operation: &'static str,
12782 file_extension: Option<String>,
12783 cx: &AppContext,
12784 ) {
12785 if cfg!(any(test, feature = "test-support")) {
12786 return;
12787 }
12788
12789 let Some(project) = &self.project else { return };
12790
12791 // If None, we are in a file without an extension
12792 let file = self
12793 .buffer
12794 .read(cx)
12795 .as_singleton()
12796 .and_then(|b| b.read(cx).file());
12797 let file_extension = file_extension.or(file
12798 .as_ref()
12799 .and_then(|file| Path::new(file.file_name(cx)).extension())
12800 .and_then(|e| e.to_str())
12801 .map(|a| a.to_string()));
12802
12803 let vim_mode = cx
12804 .global::<SettingsStore>()
12805 .raw_user_settings()
12806 .get("vim_mode")
12807 == Some(&serde_json::Value::Bool(true));
12808
12809 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12810 == language::language_settings::InlineCompletionProvider::Copilot;
12811 let copilot_enabled_for_language = self
12812 .buffer
12813 .read(cx)
12814 .settings_at(0, cx)
12815 .show_inline_completions;
12816
12817 let project = project.read(cx);
12818 let telemetry = project.client().telemetry().clone();
12819 telemetry.report_editor_event(
12820 file_extension,
12821 vim_mode,
12822 operation,
12823 copilot_enabled,
12824 copilot_enabled_for_language,
12825 project.is_via_ssh(),
12826 )
12827 }
12828
12829 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12830 /// with each line being an array of {text, highlight} objects.
12831 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12832 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12833 return;
12834 };
12835
12836 #[derive(Serialize)]
12837 struct Chunk<'a> {
12838 text: String,
12839 highlight: Option<&'a str>,
12840 }
12841
12842 let snapshot = buffer.read(cx).snapshot();
12843 let range = self
12844 .selected_text_range(false, cx)
12845 .and_then(|selection| {
12846 if selection.range.is_empty() {
12847 None
12848 } else {
12849 Some(selection.range)
12850 }
12851 })
12852 .unwrap_or_else(|| 0..snapshot.len());
12853
12854 let chunks = snapshot.chunks(range, true);
12855 let mut lines = Vec::new();
12856 let mut line: VecDeque<Chunk> = VecDeque::new();
12857
12858 let Some(style) = self.style.as_ref() else {
12859 return;
12860 };
12861
12862 for chunk in chunks {
12863 let highlight = chunk
12864 .syntax_highlight_id
12865 .and_then(|id| id.name(&style.syntax));
12866 let mut chunk_lines = chunk.text.split('\n').peekable();
12867 while let Some(text) = chunk_lines.next() {
12868 let mut merged_with_last_token = false;
12869 if let Some(last_token) = line.back_mut() {
12870 if last_token.highlight == highlight {
12871 last_token.text.push_str(text);
12872 merged_with_last_token = true;
12873 }
12874 }
12875
12876 if !merged_with_last_token {
12877 line.push_back(Chunk {
12878 text: text.into(),
12879 highlight,
12880 });
12881 }
12882
12883 if chunk_lines.peek().is_some() {
12884 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12885 line.pop_front();
12886 }
12887 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12888 line.pop_back();
12889 }
12890
12891 lines.push(mem::take(&mut line));
12892 }
12893 }
12894 }
12895
12896 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12897 return;
12898 };
12899 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12900 }
12901
12902 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12903 &self.inlay_hint_cache
12904 }
12905
12906 pub fn replay_insert_event(
12907 &mut self,
12908 text: &str,
12909 relative_utf16_range: Option<Range<isize>>,
12910 cx: &mut ViewContext<Self>,
12911 ) {
12912 if !self.input_enabled {
12913 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12914 return;
12915 }
12916 if let Some(relative_utf16_range) = relative_utf16_range {
12917 let selections = self.selections.all::<OffsetUtf16>(cx);
12918 self.change_selections(None, cx, |s| {
12919 let new_ranges = selections.into_iter().map(|range| {
12920 let start = OffsetUtf16(
12921 range
12922 .head()
12923 .0
12924 .saturating_add_signed(relative_utf16_range.start),
12925 );
12926 let end = OffsetUtf16(
12927 range
12928 .head()
12929 .0
12930 .saturating_add_signed(relative_utf16_range.end),
12931 );
12932 start..end
12933 });
12934 s.select_ranges(new_ranges);
12935 });
12936 }
12937
12938 self.handle_input(text, cx);
12939 }
12940
12941 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12942 let Some(provider) = self.semantics_provider.as_ref() else {
12943 return false;
12944 };
12945
12946 let mut supports = false;
12947 self.buffer().read(cx).for_each_buffer(|buffer| {
12948 supports |= provider.supports_inlay_hints(buffer, cx);
12949 });
12950 supports
12951 }
12952
12953 pub fn focus(&self, cx: &mut WindowContext) {
12954 cx.focus(&self.focus_handle)
12955 }
12956
12957 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12958 self.focus_handle.is_focused(cx)
12959 }
12960
12961 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12962 cx.emit(EditorEvent::Focused);
12963
12964 if let Some(descendant) = self
12965 .last_focused_descendant
12966 .take()
12967 .and_then(|descendant| descendant.upgrade())
12968 {
12969 cx.focus(&descendant);
12970 } else {
12971 if let Some(blame) = self.blame.as_ref() {
12972 blame.update(cx, GitBlame::focus)
12973 }
12974
12975 self.blink_manager.update(cx, BlinkManager::enable);
12976 self.show_cursor_names(cx);
12977 self.buffer.update(cx, |buffer, cx| {
12978 buffer.finalize_last_transaction(cx);
12979 if self.leader_peer_id.is_none() {
12980 buffer.set_active_selections(
12981 &self.selections.disjoint_anchors(),
12982 self.selections.line_mode,
12983 self.cursor_shape,
12984 cx,
12985 );
12986 }
12987 });
12988 }
12989 }
12990
12991 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12992 cx.emit(EditorEvent::FocusedIn)
12993 }
12994
12995 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12996 if event.blurred != self.focus_handle {
12997 self.last_focused_descendant = Some(event.blurred);
12998 }
12999 }
13000
13001 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
13002 self.blink_manager.update(cx, BlinkManager::disable);
13003 self.buffer
13004 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
13005
13006 if let Some(blame) = self.blame.as_ref() {
13007 blame.update(cx, GitBlame::blur)
13008 }
13009 if !self.hover_state.focused(cx) {
13010 hide_hover(self, cx);
13011 }
13012
13013 self.hide_context_menu(cx);
13014 cx.emit(EditorEvent::Blurred);
13015 cx.notify();
13016 }
13017
13018 pub fn register_action<A: Action>(
13019 &mut self,
13020 listener: impl Fn(&A, &mut WindowContext) + 'static,
13021 ) -> Subscription {
13022 let id = self.next_editor_action_id.post_inc();
13023 let listener = Arc::new(listener);
13024 self.editor_actions.borrow_mut().insert(
13025 id,
13026 Box::new(move |cx| {
13027 let cx = cx.window_context();
13028 let listener = listener.clone();
13029 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
13030 let action = action.downcast_ref().unwrap();
13031 if phase == DispatchPhase::Bubble {
13032 listener(action, cx)
13033 }
13034 })
13035 }),
13036 );
13037
13038 let editor_actions = self.editor_actions.clone();
13039 Subscription::new(move || {
13040 editor_actions.borrow_mut().remove(&id);
13041 })
13042 }
13043
13044 pub fn file_header_size(&self) -> u32 {
13045 FILE_HEADER_HEIGHT
13046 }
13047
13048 pub fn revert(
13049 &mut self,
13050 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13051 cx: &mut ViewContext<Self>,
13052 ) {
13053 self.buffer().update(cx, |multi_buffer, cx| {
13054 for (buffer_id, changes) in revert_changes {
13055 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13056 buffer.update(cx, |buffer, cx| {
13057 buffer.edit(
13058 changes.into_iter().map(|(range, text)| {
13059 (range, text.to_string().map(Arc::<str>::from))
13060 }),
13061 None,
13062 cx,
13063 );
13064 });
13065 }
13066 }
13067 });
13068 self.change_selections(None, cx, |selections| selections.refresh());
13069 }
13070
13071 pub fn to_pixel_point(
13072 &mut self,
13073 source: multi_buffer::Anchor,
13074 editor_snapshot: &EditorSnapshot,
13075 cx: &mut ViewContext<Self>,
13076 ) -> Option<gpui::Point<Pixels>> {
13077 let source_point = source.to_display_point(editor_snapshot);
13078 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13079 }
13080
13081 pub fn display_to_pixel_point(
13082 &mut self,
13083 source: DisplayPoint,
13084 editor_snapshot: &EditorSnapshot,
13085 cx: &mut ViewContext<Self>,
13086 ) -> Option<gpui::Point<Pixels>> {
13087 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13088 let text_layout_details = self.text_layout_details(cx);
13089 let scroll_top = text_layout_details
13090 .scroll_anchor
13091 .scroll_position(editor_snapshot)
13092 .y;
13093
13094 if source.row().as_f32() < scroll_top.floor() {
13095 return None;
13096 }
13097 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13098 let source_y = line_height * (source.row().as_f32() - scroll_top);
13099 Some(gpui::Point::new(source_x, source_y))
13100 }
13101
13102 pub fn has_active_completions_menu(&self) -> bool {
13103 self.context_menu.read().as_ref().map_or(false, |menu| {
13104 menu.visible() && matches!(menu, ContextMenu::Completions(_))
13105 })
13106 }
13107
13108 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13109 self.addons
13110 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13111 }
13112
13113 pub fn unregister_addon<T: Addon>(&mut self) {
13114 self.addons.remove(&std::any::TypeId::of::<T>());
13115 }
13116
13117 pub fn addon<T: Addon>(&self) -> Option<&T> {
13118 let type_id = std::any::TypeId::of::<T>();
13119 self.addons
13120 .get(&type_id)
13121 .and_then(|item| item.to_any().downcast_ref::<T>())
13122 }
13123}
13124
13125fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13126 let tab_size = tab_size.get() as usize;
13127 let mut width = offset;
13128
13129 for ch in text.chars() {
13130 width += if ch == '\t' {
13131 tab_size - (width % tab_size)
13132 } else {
13133 1
13134 };
13135 }
13136
13137 width - offset
13138}
13139
13140#[cfg(test)]
13141mod tests {
13142 use super::*;
13143
13144 #[test]
13145 fn test_string_size_with_expanded_tabs() {
13146 let nz = |val| NonZeroU32::new(val).unwrap();
13147 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13148 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13149 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13150 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13151 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13152 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13153 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13154 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13155 }
13156}
13157
13158/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13159struct WordBreakingTokenizer<'a> {
13160 input: &'a str,
13161}
13162
13163impl<'a> WordBreakingTokenizer<'a> {
13164 fn new(input: &'a str) -> Self {
13165 Self { input }
13166 }
13167}
13168
13169fn is_char_ideographic(ch: char) -> bool {
13170 use unicode_script::Script::*;
13171 use unicode_script::UnicodeScript;
13172 matches!(ch.script(), Han | Tangut | Yi)
13173}
13174
13175fn is_grapheme_ideographic(text: &str) -> bool {
13176 text.chars().any(is_char_ideographic)
13177}
13178
13179fn is_grapheme_whitespace(text: &str) -> bool {
13180 text.chars().any(|x| x.is_whitespace())
13181}
13182
13183fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13184 text.chars().next().map_or(false, |ch| {
13185 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13186 })
13187}
13188
13189#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13190struct WordBreakToken<'a> {
13191 token: &'a str,
13192 grapheme_len: usize,
13193 is_whitespace: bool,
13194}
13195
13196impl<'a> Iterator for WordBreakingTokenizer<'a> {
13197 /// Yields a span, the count of graphemes in the token, and whether it was
13198 /// whitespace. Note that it also breaks at word boundaries.
13199 type Item = WordBreakToken<'a>;
13200
13201 fn next(&mut self) -> Option<Self::Item> {
13202 use unicode_segmentation::UnicodeSegmentation;
13203 if self.input.is_empty() {
13204 return None;
13205 }
13206
13207 let mut iter = self.input.graphemes(true).peekable();
13208 let mut offset = 0;
13209 let mut graphemes = 0;
13210 if let Some(first_grapheme) = iter.next() {
13211 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13212 offset += first_grapheme.len();
13213 graphemes += 1;
13214 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13215 if let Some(grapheme) = iter.peek().copied() {
13216 if should_stay_with_preceding_ideograph(grapheme) {
13217 offset += grapheme.len();
13218 graphemes += 1;
13219 }
13220 }
13221 } else {
13222 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13223 let mut next_word_bound = words.peek().copied();
13224 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13225 next_word_bound = words.next();
13226 }
13227 while let Some(grapheme) = iter.peek().copied() {
13228 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13229 break;
13230 };
13231 if is_grapheme_whitespace(grapheme) != is_whitespace {
13232 break;
13233 };
13234 offset += grapheme.len();
13235 graphemes += 1;
13236 iter.next();
13237 }
13238 }
13239 let token = &self.input[..offset];
13240 self.input = &self.input[offset..];
13241 if is_whitespace {
13242 Some(WordBreakToken {
13243 token: " ",
13244 grapheme_len: 1,
13245 is_whitespace: true,
13246 })
13247 } else {
13248 Some(WordBreakToken {
13249 token,
13250 grapheme_len: graphemes,
13251 is_whitespace: false,
13252 })
13253 }
13254 } else {
13255 None
13256 }
13257 }
13258}
13259
13260#[test]
13261fn test_word_breaking_tokenizer() {
13262 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13263 ("", &[]),
13264 (" ", &[(" ", 1, true)]),
13265 ("Ʒ", &[("Ʒ", 1, false)]),
13266 ("Ǽ", &[("Ǽ", 1, false)]),
13267 ("⋑", &[("⋑", 1, false)]),
13268 ("⋑⋑", &[("⋑⋑", 2, false)]),
13269 (
13270 "原理，进而",
13271 &[
13272 ("原", 1, false),
13273 ("理，", 2, false),
13274 ("进", 1, false),
13275 ("而", 1, false),
13276 ],
13277 ),
13278 (
13279 "hello world",
13280 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13281 ),
13282 (
13283 "hello, world",
13284 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13285 ),
13286 (
13287 " hello world",
13288 &[
13289 (" ", 1, true),
13290 ("hello", 5, false),
13291 (" ", 1, true),
13292 ("world", 5, false),
13293 ],
13294 ),
13295 (
13296 "这是什么 \n 钢笔",
13297 &[
13298 ("这", 1, false),
13299 ("是", 1, false),
13300 ("什", 1, false),
13301 ("么", 1, false),
13302 (" ", 1, true),
13303 ("钢", 1, false),
13304 ("笔", 1, false),
13305 ],
13306 ),
13307 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13308 ];
13309
13310 for (input, result) in tests {
13311 assert_eq!(
13312 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13313 result
13314 .iter()
13315 .copied()
13316 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13317 token,
13318 grapheme_len,
13319 is_whitespace,
13320 })
13321 .collect::<Vec<_>>()
13322 );
13323 }
13324}
13325
13326fn wrap_with_prefix(
13327 line_prefix: String,
13328 unwrapped_text: String,
13329 wrap_column: usize,
13330 tab_size: NonZeroU32,
13331) -> String {
13332 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13333 let mut wrapped_text = String::new();
13334 let mut current_line = line_prefix.clone();
13335
13336 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13337 let mut current_line_len = line_prefix_len;
13338 for WordBreakToken {
13339 token,
13340 grapheme_len,
13341 is_whitespace,
13342 } in tokenizer
13343 {
13344 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13345 wrapped_text.push_str(current_line.trim_end());
13346 wrapped_text.push('\n');
13347 current_line.truncate(line_prefix.len());
13348 current_line_len = line_prefix_len;
13349 if !is_whitespace {
13350 current_line.push_str(token);
13351 current_line_len += grapheme_len;
13352 }
13353 } else if !is_whitespace {
13354 current_line.push_str(token);
13355 current_line_len += grapheme_len;
13356 } else if current_line_len != line_prefix_len {
13357 current_line.push(' ');
13358 current_line_len += 1;
13359 }
13360 }
13361
13362 if !current_line.is_empty() {
13363 wrapped_text.push_str(¤t_line);
13364 }
13365 wrapped_text
13366}
13367
13368#[test]
13369fn test_wrap_with_prefix() {
13370 assert_eq!(
13371 wrap_with_prefix(
13372 "# ".to_string(),
13373 "abcdefg".to_string(),
13374 4,
13375 NonZeroU32::new(4).unwrap()
13376 ),
13377 "# abcdefg"
13378 );
13379 assert_eq!(
13380 wrap_with_prefix(
13381 "".to_string(),
13382 "\thello world".to_string(),
13383 8,
13384 NonZeroU32::new(4).unwrap()
13385 ),
13386 "hello\nworld"
13387 );
13388 assert_eq!(
13389 wrap_with_prefix(
13390 "// ".to_string(),
13391 "xx \nyy zz aa bb cc".to_string(),
13392 12,
13393 NonZeroU32::new(4).unwrap()
13394 ),
13395 "// xx yy zz\n// aa bb cc"
13396 );
13397 assert_eq!(
13398 wrap_with_prefix(
13399 String::new(),
13400 "这是什么 \n 钢笔".to_string(),
13401 3,
13402 NonZeroU32::new(4).unwrap()
13403 ),
13404 "这是什\n么 钢\n笔"
13405 );
13406}
13407
13408fn hunks_for_selections(
13409 multi_buffer_snapshot: &MultiBufferSnapshot,
13410 selections: &[Selection<Anchor>],
13411) -> Vec<MultiBufferDiffHunk> {
13412 let buffer_rows_for_selections = selections.iter().map(|selection| {
13413 let head = selection.head();
13414 let tail = selection.tail();
13415 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
13416 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
13417 if start > end {
13418 end..start
13419 } else {
13420 start..end
13421 }
13422 });
13423
13424 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
13425}
13426
13427pub fn hunks_for_rows(
13428 rows: impl Iterator<Item = Range<MultiBufferRow>>,
13429 multi_buffer_snapshot: &MultiBufferSnapshot,
13430) -> Vec<MultiBufferDiffHunk> {
13431 let mut hunks = Vec::new();
13432 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13433 HashMap::default();
13434 for selected_multi_buffer_rows in rows {
13435 let query_rows =
13436 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
13437 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
13438 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13439 // when the caret is just above or just below the deleted hunk.
13440 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13441 let related_to_selection = if allow_adjacent {
13442 hunk.row_range.overlaps(&query_rows)
13443 || hunk.row_range.start == query_rows.end
13444 || hunk.row_range.end == query_rows.start
13445 } else {
13446 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
13447 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
13448 hunk.row_range.overlaps(&selected_multi_buffer_rows)
13449 || selected_multi_buffer_rows.end == hunk.row_range.start
13450 };
13451 if related_to_selection {
13452 if !processed_buffer_rows
13453 .entry(hunk.buffer_id)
13454 .or_default()
13455 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13456 {
13457 continue;
13458 }
13459 hunks.push(hunk);
13460 }
13461 }
13462 }
13463
13464 hunks
13465}
13466
13467pub trait CollaborationHub {
13468 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13469 fn user_participant_indices<'a>(
13470 &self,
13471 cx: &'a AppContext,
13472 ) -> &'a HashMap<u64, ParticipantIndex>;
13473 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13474}
13475
13476impl CollaborationHub for Model<Project> {
13477 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13478 self.read(cx).collaborators()
13479 }
13480
13481 fn user_participant_indices<'a>(
13482 &self,
13483 cx: &'a AppContext,
13484 ) -> &'a HashMap<u64, ParticipantIndex> {
13485 self.read(cx).user_store().read(cx).participant_indices()
13486 }
13487
13488 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13489 let this = self.read(cx);
13490 let user_ids = this.collaborators().values().map(|c| c.user_id);
13491 this.user_store().read_with(cx, |user_store, cx| {
13492 user_store.participant_names(user_ids, cx)
13493 })
13494 }
13495}
13496
13497pub trait SemanticsProvider {
13498 fn hover(
13499 &self,
13500 buffer: &Model<Buffer>,
13501 position: text::Anchor,
13502 cx: &mut AppContext,
13503 ) -> Option<Task<Vec<project::Hover>>>;
13504
13505 fn inlay_hints(
13506 &self,
13507 buffer_handle: Model<Buffer>,
13508 range: Range<text::Anchor>,
13509 cx: &mut AppContext,
13510 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13511
13512 fn resolve_inlay_hint(
13513 &self,
13514 hint: InlayHint,
13515 buffer_handle: Model<Buffer>,
13516 server_id: LanguageServerId,
13517 cx: &mut AppContext,
13518 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13519
13520 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13521
13522 fn document_highlights(
13523 &self,
13524 buffer: &Model<Buffer>,
13525 position: text::Anchor,
13526 cx: &mut AppContext,
13527 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13528
13529 fn definitions(
13530 &self,
13531 buffer: &Model<Buffer>,
13532 position: text::Anchor,
13533 kind: GotoDefinitionKind,
13534 cx: &mut AppContext,
13535 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13536
13537 fn range_for_rename(
13538 &self,
13539 buffer: &Model<Buffer>,
13540 position: text::Anchor,
13541 cx: &mut AppContext,
13542 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13543
13544 fn perform_rename(
13545 &self,
13546 buffer: &Model<Buffer>,
13547 position: text::Anchor,
13548 new_name: String,
13549 cx: &mut AppContext,
13550 ) -> Option<Task<Result<ProjectTransaction>>>;
13551}
13552
13553pub trait CompletionProvider {
13554 fn completions(
13555 &self,
13556 buffer: &Model<Buffer>,
13557 buffer_position: text::Anchor,
13558 trigger: CompletionContext,
13559 cx: &mut ViewContext<Editor>,
13560 ) -> Task<Result<Vec<Completion>>>;
13561
13562 fn resolve_completions(
13563 &self,
13564 buffer: Model<Buffer>,
13565 completion_indices: Vec<usize>,
13566 completions: Arc<RwLock<Box<[Completion]>>>,
13567 cx: &mut ViewContext<Editor>,
13568 ) -> Task<Result<bool>>;
13569
13570 fn apply_additional_edits_for_completion(
13571 &self,
13572 buffer: Model<Buffer>,
13573 completion: Completion,
13574 push_to_history: bool,
13575 cx: &mut ViewContext<Editor>,
13576 ) -> Task<Result<Option<language::Transaction>>>;
13577
13578 fn is_completion_trigger(
13579 &self,
13580 buffer: &Model<Buffer>,
13581 position: language::Anchor,
13582 text: &str,
13583 trigger_in_words: bool,
13584 cx: &mut ViewContext<Editor>,
13585 ) -> bool;
13586
13587 fn sort_completions(&self) -> bool {
13588 true
13589 }
13590}
13591
13592pub trait CodeActionProvider {
13593 fn code_actions(
13594 &self,
13595 buffer: &Model<Buffer>,
13596 range: Range<text::Anchor>,
13597 cx: &mut WindowContext,
13598 ) -> Task<Result<Vec<CodeAction>>>;
13599
13600 fn apply_code_action(
13601 &self,
13602 buffer_handle: Model<Buffer>,
13603 action: CodeAction,
13604 excerpt_id: ExcerptId,
13605 push_to_history: bool,
13606 cx: &mut WindowContext,
13607 ) -> Task<Result<ProjectTransaction>>;
13608}
13609
13610impl CodeActionProvider for Model<Project> {
13611 fn code_actions(
13612 &self,
13613 buffer: &Model<Buffer>,
13614 range: Range<text::Anchor>,
13615 cx: &mut WindowContext,
13616 ) -> Task<Result<Vec<CodeAction>>> {
13617 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
13618 }
13619
13620 fn apply_code_action(
13621 &self,
13622 buffer_handle: Model<Buffer>,
13623 action: CodeAction,
13624 _excerpt_id: ExcerptId,
13625 push_to_history: bool,
13626 cx: &mut WindowContext,
13627 ) -> Task<Result<ProjectTransaction>> {
13628 self.update(cx, |project, cx| {
13629 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13630 })
13631 }
13632}
13633
13634fn snippet_completions(
13635 project: &Project,
13636 buffer: &Model<Buffer>,
13637 buffer_position: text::Anchor,
13638 cx: &mut AppContext,
13639) -> Vec<Completion> {
13640 let language = buffer.read(cx).language_at(buffer_position);
13641 let language_name = language.as_ref().map(|language| language.lsp_id());
13642 let snippet_store = project.snippets().read(cx);
13643 let snippets = snippet_store.snippets_for(language_name, cx);
13644
13645 if snippets.is_empty() {
13646 return vec![];
13647 }
13648 let snapshot = buffer.read(cx).text_snapshot();
13649 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13650
13651 let scope = language.map(|language| language.default_scope());
13652 let classifier = CharClassifier::new(scope).for_completion(true);
13653 let mut last_word = chars
13654 .take_while(|c| classifier.is_word(*c))
13655 .collect::<String>();
13656 last_word = last_word.chars().rev().collect();
13657 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13658 let to_lsp = |point: &text::Anchor| {
13659 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13660 point_to_lsp(end)
13661 };
13662 let lsp_end = to_lsp(&buffer_position);
13663 snippets
13664 .into_iter()
13665 .filter_map(|snippet| {
13666 let matching_prefix = snippet
13667 .prefix
13668 .iter()
13669 .find(|prefix| prefix.starts_with(&last_word))?;
13670 let start = as_offset - last_word.len();
13671 let start = snapshot.anchor_before(start);
13672 let range = start..buffer_position;
13673 let lsp_start = to_lsp(&start);
13674 let lsp_range = lsp::Range {
13675 start: lsp_start,
13676 end: lsp_end,
13677 };
13678 Some(Completion {
13679 old_range: range,
13680 new_text: snippet.body.clone(),
13681 label: CodeLabel {
13682 text: matching_prefix.clone(),
13683 runs: vec![],
13684 filter_range: 0..matching_prefix.len(),
13685 },
13686 server_id: LanguageServerId(usize::MAX),
13687 documentation: snippet.description.clone().map(Documentation::SingleLine),
13688 lsp_completion: lsp::CompletionItem {
13689 label: snippet.prefix.first().unwrap().clone(),
13690 kind: Some(CompletionItemKind::SNIPPET),
13691 label_details: snippet.description.as_ref().map(|description| {
13692 lsp::CompletionItemLabelDetails {
13693 detail: Some(description.clone()),
13694 description: None,
13695 }
13696 }),
13697 insert_text_format: Some(InsertTextFormat::SNIPPET),
13698 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13699 lsp::InsertReplaceEdit {
13700 new_text: snippet.body.clone(),
13701 insert: lsp_range,
13702 replace: lsp_range,
13703 },
13704 )),
13705 filter_text: Some(snippet.body.clone()),
13706 sort_text: Some(char::MAX.to_string()),
13707 ..Default::default()
13708 },
13709 confirm: None,
13710 })
13711 })
13712 .collect()
13713}
13714
13715impl CompletionProvider for Model<Project> {
13716 fn completions(
13717 &self,
13718 buffer: &Model<Buffer>,
13719 buffer_position: text::Anchor,
13720 options: CompletionContext,
13721 cx: &mut ViewContext<Editor>,
13722 ) -> Task<Result<Vec<Completion>>> {
13723 self.update(cx, |project, cx| {
13724 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13725 let project_completions = project.completions(buffer, buffer_position, options, cx);
13726 cx.background_executor().spawn(async move {
13727 let mut completions = project_completions.await?;
13728 //let snippets = snippets.into_iter().;
13729 completions.extend(snippets);
13730 Ok(completions)
13731 })
13732 })
13733 }
13734
13735 fn resolve_completions(
13736 &self,
13737 buffer: Model<Buffer>,
13738 completion_indices: Vec<usize>,
13739 completions: Arc<RwLock<Box<[Completion]>>>,
13740 cx: &mut ViewContext<Editor>,
13741 ) -> Task<Result<bool>> {
13742 self.update(cx, |project, cx| {
13743 project.resolve_completions(buffer, completion_indices, completions, cx)
13744 })
13745 }
13746
13747 fn apply_additional_edits_for_completion(
13748 &self,
13749 buffer: Model<Buffer>,
13750 completion: Completion,
13751 push_to_history: bool,
13752 cx: &mut ViewContext<Editor>,
13753 ) -> Task<Result<Option<language::Transaction>>> {
13754 self.update(cx, |project, cx| {
13755 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13756 })
13757 }
13758
13759 fn is_completion_trigger(
13760 &self,
13761 buffer: &Model<Buffer>,
13762 position: language::Anchor,
13763 text: &str,
13764 trigger_in_words: bool,
13765 cx: &mut ViewContext<Editor>,
13766 ) -> bool {
13767 if !EditorSettings::get_global(cx).show_completions_on_input {
13768 return false;
13769 }
13770
13771 let mut chars = text.chars();
13772 let char = if let Some(char) = chars.next() {
13773 char
13774 } else {
13775 return false;
13776 };
13777 if chars.next().is_some() {
13778 return false;
13779 }
13780
13781 let buffer = buffer.read(cx);
13782 let classifier = buffer
13783 .snapshot()
13784 .char_classifier_at(position)
13785 .for_completion(true);
13786 if trigger_in_words && classifier.is_word(char) {
13787 return true;
13788 }
13789
13790 buffer.completion_triggers().contains(text)
13791 }
13792}
13793
13794impl SemanticsProvider for Model<Project> {
13795 fn hover(
13796 &self,
13797 buffer: &Model<Buffer>,
13798 position: text::Anchor,
13799 cx: &mut AppContext,
13800 ) -> Option<Task<Vec<project::Hover>>> {
13801 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13802 }
13803
13804 fn document_highlights(
13805 &self,
13806 buffer: &Model<Buffer>,
13807 position: text::Anchor,
13808 cx: &mut AppContext,
13809 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13810 Some(self.update(cx, |project, cx| {
13811 project.document_highlights(buffer, position, cx)
13812 }))
13813 }
13814
13815 fn definitions(
13816 &self,
13817 buffer: &Model<Buffer>,
13818 position: text::Anchor,
13819 kind: GotoDefinitionKind,
13820 cx: &mut AppContext,
13821 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13822 Some(self.update(cx, |project, cx| match kind {
13823 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13824 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13825 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13826 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13827 }))
13828 }
13829
13830 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13831 // TODO: make this work for remote projects
13832 self.read(cx)
13833 .language_servers_for_buffer(buffer.read(cx), cx)
13834 .any(
13835 |(_, server)| match server.capabilities().inlay_hint_provider {
13836 Some(lsp::OneOf::Left(enabled)) => enabled,
13837 Some(lsp::OneOf::Right(_)) => true,
13838 None => false,
13839 },
13840 )
13841 }
13842
13843 fn inlay_hints(
13844 &self,
13845 buffer_handle: Model<Buffer>,
13846 range: Range<text::Anchor>,
13847 cx: &mut AppContext,
13848 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13849 Some(self.update(cx, |project, cx| {
13850 project.inlay_hints(buffer_handle, range, cx)
13851 }))
13852 }
13853
13854 fn resolve_inlay_hint(
13855 &self,
13856 hint: InlayHint,
13857 buffer_handle: Model<Buffer>,
13858 server_id: LanguageServerId,
13859 cx: &mut AppContext,
13860 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13861 Some(self.update(cx, |project, cx| {
13862 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13863 }))
13864 }
13865
13866 fn range_for_rename(
13867 &self,
13868 buffer: &Model<Buffer>,
13869 position: text::Anchor,
13870 cx: &mut AppContext,
13871 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13872 Some(self.update(cx, |project, cx| {
13873 project.prepare_rename(buffer.clone(), position, cx)
13874 }))
13875 }
13876
13877 fn perform_rename(
13878 &self,
13879 buffer: &Model<Buffer>,
13880 position: text::Anchor,
13881 new_name: String,
13882 cx: &mut AppContext,
13883 ) -> Option<Task<Result<ProjectTransaction>>> {
13884 Some(self.update(cx, |project, cx| {
13885 project.perform_rename(buffer.clone(), position, new_name, cx)
13886 }))
13887 }
13888}
13889
13890fn inlay_hint_settings(
13891 location: Anchor,
13892 snapshot: &MultiBufferSnapshot,
13893 cx: &mut ViewContext<'_, Editor>,
13894) -> InlayHintSettings {
13895 let file = snapshot.file_at(location);
13896 let language = snapshot.language_at(location).map(|l| l.name());
13897 language_settings(language, file, cx).inlay_hints
13898}
13899
13900fn consume_contiguous_rows(
13901 contiguous_row_selections: &mut Vec<Selection<Point>>,
13902 selection: &Selection<Point>,
13903 display_map: &DisplaySnapshot,
13904 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13905) -> (MultiBufferRow, MultiBufferRow) {
13906 contiguous_row_selections.push(selection.clone());
13907 let start_row = MultiBufferRow(selection.start.row);
13908 let mut end_row = ending_row(selection, display_map);
13909
13910 while let Some(next_selection) = selections.peek() {
13911 if next_selection.start.row <= end_row.0 {
13912 end_row = ending_row(next_selection, display_map);
13913 contiguous_row_selections.push(selections.next().unwrap().clone());
13914 } else {
13915 break;
13916 }
13917 }
13918 (start_row, end_row)
13919}
13920
13921fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13922 if next_selection.end.column > 0 || next_selection.is_empty() {
13923 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13924 } else {
13925 MultiBufferRow(next_selection.end.row)
13926 }
13927}
13928
13929impl EditorSnapshot {
13930 pub fn remote_selections_in_range<'a>(
13931 &'a self,
13932 range: &'a Range<Anchor>,
13933 collaboration_hub: &dyn CollaborationHub,
13934 cx: &'a AppContext,
13935 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13936 let participant_names = collaboration_hub.user_names(cx);
13937 let participant_indices = collaboration_hub.user_participant_indices(cx);
13938 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13939 let collaborators_by_replica_id = collaborators_by_peer_id
13940 .iter()
13941 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13942 .collect::<HashMap<_, _>>();
13943 self.buffer_snapshot
13944 .selections_in_range(range, false)
13945 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13946 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13947 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13948 let user_name = participant_names.get(&collaborator.user_id).cloned();
13949 Some(RemoteSelection {
13950 replica_id,
13951 selection,
13952 cursor_shape,
13953 line_mode,
13954 participant_index,
13955 peer_id: collaborator.peer_id,
13956 user_name,
13957 })
13958 })
13959 }
13960
13961 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13962 self.display_snapshot.buffer_snapshot.language_at(position)
13963 }
13964
13965 pub fn is_focused(&self) -> bool {
13966 self.is_focused
13967 }
13968
13969 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13970 self.placeholder_text.as_ref()
13971 }
13972
13973 pub fn scroll_position(&self) -> gpui::Point<f32> {
13974 self.scroll_anchor.scroll_position(&self.display_snapshot)
13975 }
13976
13977 fn gutter_dimensions(
13978 &self,
13979 font_id: FontId,
13980 font_size: Pixels,
13981 em_width: Pixels,
13982 em_advance: Pixels,
13983 max_line_number_width: Pixels,
13984 cx: &AppContext,
13985 ) -> GutterDimensions {
13986 if !self.show_gutter {
13987 return GutterDimensions::default();
13988 }
13989 let descent = cx.text_system().descent(font_id, font_size);
13990
13991 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13992 matches!(
13993 ProjectSettings::get_global(cx).git.git_gutter,
13994 Some(GitGutterSetting::TrackedFiles)
13995 )
13996 });
13997 let gutter_settings = EditorSettings::get_global(cx).gutter;
13998 let show_line_numbers = self
13999 .show_line_numbers
14000 .unwrap_or(gutter_settings.line_numbers);
14001 let line_gutter_width = if show_line_numbers {
14002 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14003 let min_width_for_number_on_gutter = em_advance * 4.0;
14004 max_line_number_width.max(min_width_for_number_on_gutter)
14005 } else {
14006 0.0.into()
14007 };
14008
14009 let show_code_actions = self
14010 .show_code_actions
14011 .unwrap_or(gutter_settings.code_actions);
14012
14013 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14014
14015 let git_blame_entries_width =
14016 self.git_blame_gutter_max_author_length
14017 .map(|max_author_length| {
14018 // Length of the author name, but also space for the commit hash,
14019 // the spacing and the timestamp.
14020 let max_char_count = max_author_length
14021 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14022 + 7 // length of commit sha
14023 + 14 // length of max relative timestamp ("60 minutes ago")
14024 + 4; // gaps and margins
14025
14026 em_advance * max_char_count
14027 });
14028
14029 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14030 left_padding += if show_code_actions || show_runnables {
14031 em_width * 3.0
14032 } else if show_git_gutter && show_line_numbers {
14033 em_width * 2.0
14034 } else if show_git_gutter || show_line_numbers {
14035 em_width
14036 } else {
14037 px(0.)
14038 };
14039
14040 let right_padding = if gutter_settings.folds && show_line_numbers {
14041 em_width * 4.0
14042 } else if gutter_settings.folds {
14043 em_width * 3.0
14044 } else if show_line_numbers {
14045 em_width
14046 } else {
14047 px(0.)
14048 };
14049
14050 GutterDimensions {
14051 left_padding,
14052 right_padding,
14053 width: line_gutter_width + left_padding + right_padding,
14054 margin: -descent,
14055 git_blame_entries_width,
14056 }
14057 }
14058
14059 pub fn render_fold_toggle(
14060 &self,
14061 buffer_row: MultiBufferRow,
14062 row_contains_cursor: bool,
14063 editor: View<Editor>,
14064 cx: &mut WindowContext,
14065 ) -> Option<AnyElement> {
14066 let folded = self.is_line_folded(buffer_row);
14067
14068 if let Some(crease) = self
14069 .crease_snapshot
14070 .query_row(buffer_row, &self.buffer_snapshot)
14071 {
14072 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14073 if folded {
14074 editor.update(cx, |editor, cx| {
14075 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14076 });
14077 } else {
14078 editor.update(cx, |editor, cx| {
14079 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14080 });
14081 }
14082 });
14083
14084 Some((crease.render_toggle)(
14085 buffer_row,
14086 folded,
14087 toggle_callback,
14088 cx,
14089 ))
14090 } else if folded
14091 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
14092 {
14093 Some(
14094 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
14095 .selected(folded)
14096 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14097 if folded {
14098 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14099 } else {
14100 this.fold_at(&FoldAt { buffer_row }, cx);
14101 }
14102 }))
14103 .into_any_element(),
14104 )
14105 } else {
14106 None
14107 }
14108 }
14109
14110 pub fn render_crease_trailer(
14111 &self,
14112 buffer_row: MultiBufferRow,
14113 cx: &mut WindowContext,
14114 ) -> Option<AnyElement> {
14115 let folded = self.is_line_folded(buffer_row);
14116 let crease = self
14117 .crease_snapshot
14118 .query_row(buffer_row, &self.buffer_snapshot)?;
14119 Some((crease.render_trailer)(buffer_row, folded, cx))
14120 }
14121}
14122
14123impl Deref for EditorSnapshot {
14124 type Target = DisplaySnapshot;
14125
14126 fn deref(&self) -> &Self::Target {
14127 &self.display_snapshot
14128 }
14129}
14130
14131#[derive(Clone, Debug, PartialEq, Eq)]
14132pub enum EditorEvent {
14133 InputIgnored {
14134 text: Arc<str>,
14135 },
14136 InputHandled {
14137 utf16_range_to_replace: Option<Range<isize>>,
14138 text: Arc<str>,
14139 },
14140 ExcerptsAdded {
14141 buffer: Model<Buffer>,
14142 predecessor: ExcerptId,
14143 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14144 },
14145 ExcerptsRemoved {
14146 ids: Vec<ExcerptId>,
14147 },
14148 ExcerptsEdited {
14149 ids: Vec<ExcerptId>,
14150 },
14151 ExcerptsExpanded {
14152 ids: Vec<ExcerptId>,
14153 },
14154 BufferEdited,
14155 Edited {
14156 transaction_id: clock::Lamport,
14157 },
14158 Reparsed(BufferId),
14159 Focused,
14160 FocusedIn,
14161 Blurred,
14162 DirtyChanged,
14163 Saved,
14164 TitleChanged,
14165 DiffBaseChanged,
14166 SelectionsChanged {
14167 local: bool,
14168 },
14169 ScrollPositionChanged {
14170 local: bool,
14171 autoscroll: bool,
14172 },
14173 Closed,
14174 TransactionUndone {
14175 transaction_id: clock::Lamport,
14176 },
14177 TransactionBegun {
14178 transaction_id: clock::Lamport,
14179 },
14180 Reloaded,
14181 CursorShapeChanged,
14182}
14183
14184impl EventEmitter<EditorEvent> for Editor {}
14185
14186impl FocusableView for Editor {
14187 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14188 self.focus_handle.clone()
14189 }
14190}
14191
14192impl Render for Editor {
14193 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14194 let settings = ThemeSettings::get_global(cx);
14195
14196 let mut text_style = match self.mode {
14197 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14198 color: cx.theme().colors().editor_foreground,
14199 font_family: settings.ui_font.family.clone(),
14200 font_features: settings.ui_font.features.clone(),
14201 font_fallbacks: settings.ui_font.fallbacks.clone(),
14202 font_size: rems(0.875).into(),
14203 font_weight: settings.ui_font.weight,
14204 line_height: relative(settings.buffer_line_height.value()),
14205 ..Default::default()
14206 },
14207 EditorMode::Full => TextStyle {
14208 color: cx.theme().colors().editor_foreground,
14209 font_family: settings.buffer_font.family.clone(),
14210 font_features: settings.buffer_font.features.clone(),
14211 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14212 font_size: settings.buffer_font_size(cx).into(),
14213 font_weight: settings.buffer_font.weight,
14214 line_height: relative(settings.buffer_line_height.value()),
14215 ..Default::default()
14216 },
14217 };
14218 if let Some(text_style_refinement) = &self.text_style_refinement {
14219 text_style.refine(text_style_refinement)
14220 }
14221
14222 let background = match self.mode {
14223 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14224 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14225 EditorMode::Full => cx.theme().colors().editor_background,
14226 };
14227
14228 EditorElement::new(
14229 cx.view(),
14230 EditorStyle {
14231 background,
14232 local_player: cx.theme().players().local(),
14233 text: text_style,
14234 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14235 syntax: cx.theme().syntax().clone(),
14236 status: cx.theme().status().clone(),
14237 inlay_hints_style: make_inlay_hints_style(cx),
14238 suggestions_style: HighlightStyle {
14239 color: Some(cx.theme().status().predictive),
14240 ..HighlightStyle::default()
14241 },
14242 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14243 },
14244 )
14245 }
14246}
14247
14248impl ViewInputHandler for Editor {
14249 fn text_for_range(
14250 &mut self,
14251 range_utf16: Range<usize>,
14252 cx: &mut ViewContext<Self>,
14253 ) -> Option<String> {
14254 Some(
14255 self.buffer
14256 .read(cx)
14257 .read(cx)
14258 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
14259 .collect(),
14260 )
14261 }
14262
14263 fn selected_text_range(
14264 &mut self,
14265 ignore_disabled_input: bool,
14266 cx: &mut ViewContext<Self>,
14267 ) -> Option<UTF16Selection> {
14268 // Prevent the IME menu from appearing when holding down an alphabetic key
14269 // while input is disabled.
14270 if !ignore_disabled_input && !self.input_enabled {
14271 return None;
14272 }
14273
14274 let selection = self.selections.newest::<OffsetUtf16>(cx);
14275 let range = selection.range();
14276
14277 Some(UTF16Selection {
14278 range: range.start.0..range.end.0,
14279 reversed: selection.reversed,
14280 })
14281 }
14282
14283 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14284 let snapshot = self.buffer.read(cx).read(cx);
14285 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14286 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14287 }
14288
14289 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14290 self.clear_highlights::<InputComposition>(cx);
14291 self.ime_transaction.take();
14292 }
14293
14294 fn replace_text_in_range(
14295 &mut self,
14296 range_utf16: Option<Range<usize>>,
14297 text: &str,
14298 cx: &mut ViewContext<Self>,
14299 ) {
14300 if !self.input_enabled {
14301 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14302 return;
14303 }
14304
14305 self.transact(cx, |this, cx| {
14306 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14307 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14308 Some(this.selection_replacement_ranges(range_utf16, cx))
14309 } else {
14310 this.marked_text_ranges(cx)
14311 };
14312
14313 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14314 let newest_selection_id = this.selections.newest_anchor().id;
14315 this.selections
14316 .all::<OffsetUtf16>(cx)
14317 .iter()
14318 .zip(ranges_to_replace.iter())
14319 .find_map(|(selection, range)| {
14320 if selection.id == newest_selection_id {
14321 Some(
14322 (range.start.0 as isize - selection.head().0 as isize)
14323 ..(range.end.0 as isize - selection.head().0 as isize),
14324 )
14325 } else {
14326 None
14327 }
14328 })
14329 });
14330
14331 cx.emit(EditorEvent::InputHandled {
14332 utf16_range_to_replace: range_to_replace,
14333 text: text.into(),
14334 });
14335
14336 if let Some(new_selected_ranges) = new_selected_ranges {
14337 this.change_selections(None, cx, |selections| {
14338 selections.select_ranges(new_selected_ranges)
14339 });
14340 this.backspace(&Default::default(), cx);
14341 }
14342
14343 this.handle_input(text, cx);
14344 });
14345
14346 if let Some(transaction) = self.ime_transaction {
14347 self.buffer.update(cx, |buffer, cx| {
14348 buffer.group_until_transaction(transaction, cx);
14349 });
14350 }
14351
14352 self.unmark_text(cx);
14353 }
14354
14355 fn replace_and_mark_text_in_range(
14356 &mut self,
14357 range_utf16: Option<Range<usize>>,
14358 text: &str,
14359 new_selected_range_utf16: Option<Range<usize>>,
14360 cx: &mut ViewContext<Self>,
14361 ) {
14362 if !self.input_enabled {
14363 return;
14364 }
14365
14366 let transaction = self.transact(cx, |this, cx| {
14367 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14368 let snapshot = this.buffer.read(cx).read(cx);
14369 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14370 for marked_range in &mut marked_ranges {
14371 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14372 marked_range.start.0 += relative_range_utf16.start;
14373 marked_range.start =
14374 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14375 marked_range.end =
14376 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14377 }
14378 }
14379 Some(marked_ranges)
14380 } else if let Some(range_utf16) = range_utf16 {
14381 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14382 Some(this.selection_replacement_ranges(range_utf16, cx))
14383 } else {
14384 None
14385 };
14386
14387 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14388 let newest_selection_id = this.selections.newest_anchor().id;
14389 this.selections
14390 .all::<OffsetUtf16>(cx)
14391 .iter()
14392 .zip(ranges_to_replace.iter())
14393 .find_map(|(selection, range)| {
14394 if selection.id == newest_selection_id {
14395 Some(
14396 (range.start.0 as isize - selection.head().0 as isize)
14397 ..(range.end.0 as isize - selection.head().0 as isize),
14398 )
14399 } else {
14400 None
14401 }
14402 })
14403 });
14404
14405 cx.emit(EditorEvent::InputHandled {
14406 utf16_range_to_replace: range_to_replace,
14407 text: text.into(),
14408 });
14409
14410 if let Some(ranges) = ranges_to_replace {
14411 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14412 }
14413
14414 let marked_ranges = {
14415 let snapshot = this.buffer.read(cx).read(cx);
14416 this.selections
14417 .disjoint_anchors()
14418 .iter()
14419 .map(|selection| {
14420 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14421 })
14422 .collect::<Vec<_>>()
14423 };
14424
14425 if text.is_empty() {
14426 this.unmark_text(cx);
14427 } else {
14428 this.highlight_text::<InputComposition>(
14429 marked_ranges.clone(),
14430 HighlightStyle {
14431 underline: Some(UnderlineStyle {
14432 thickness: px(1.),
14433 color: None,
14434 wavy: false,
14435 }),
14436 ..Default::default()
14437 },
14438 cx,
14439 );
14440 }
14441
14442 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14443 let use_autoclose = this.use_autoclose;
14444 let use_auto_surround = this.use_auto_surround;
14445 this.set_use_autoclose(false);
14446 this.set_use_auto_surround(false);
14447 this.handle_input(text, cx);
14448 this.set_use_autoclose(use_autoclose);
14449 this.set_use_auto_surround(use_auto_surround);
14450
14451 if let Some(new_selected_range) = new_selected_range_utf16 {
14452 let snapshot = this.buffer.read(cx).read(cx);
14453 let new_selected_ranges = marked_ranges
14454 .into_iter()
14455 .map(|marked_range| {
14456 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14457 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14458 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14459 snapshot.clip_offset_utf16(new_start, Bias::Left)
14460 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14461 })
14462 .collect::<Vec<_>>();
14463
14464 drop(snapshot);
14465 this.change_selections(None, cx, |selections| {
14466 selections.select_ranges(new_selected_ranges)
14467 });
14468 }
14469 });
14470
14471 self.ime_transaction = self.ime_transaction.or(transaction);
14472 if let Some(transaction) = self.ime_transaction {
14473 self.buffer.update(cx, |buffer, cx| {
14474 buffer.group_until_transaction(transaction, cx);
14475 });
14476 }
14477
14478 if self.text_highlights::<InputComposition>(cx).is_none() {
14479 self.ime_transaction.take();
14480 }
14481 }
14482
14483 fn bounds_for_range(
14484 &mut self,
14485 range_utf16: Range<usize>,
14486 element_bounds: gpui::Bounds<Pixels>,
14487 cx: &mut ViewContext<Self>,
14488 ) -> Option<gpui::Bounds<Pixels>> {
14489 let text_layout_details = self.text_layout_details(cx);
14490 let style = &text_layout_details.editor_style;
14491 let font_id = cx.text_system().resolve_font(&style.text.font());
14492 let font_size = style.text.font_size.to_pixels(cx.rem_size());
14493 let line_height = style.text.line_height_in_pixels(cx.rem_size());
14494
14495 let em_width = cx
14496 .text_system()
14497 .typographic_bounds(font_id, font_size, 'm')
14498 .unwrap()
14499 .size
14500 .width;
14501
14502 let snapshot = self.snapshot(cx);
14503 let scroll_position = snapshot.scroll_position();
14504 let scroll_left = scroll_position.x * em_width;
14505
14506 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14507 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14508 + self.gutter_dimensions.width;
14509 let y = line_height * (start.row().as_f32() - scroll_position.y);
14510
14511 Some(Bounds {
14512 origin: element_bounds.origin + point(x, y),
14513 size: size(em_width, line_height),
14514 })
14515 }
14516}
14517
14518trait SelectionExt {
14519 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14520 fn spanned_rows(
14521 &self,
14522 include_end_if_at_line_start: bool,
14523 map: &DisplaySnapshot,
14524 ) -> Range<MultiBufferRow>;
14525}
14526
14527impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14528 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14529 let start = self
14530 .start
14531 .to_point(&map.buffer_snapshot)
14532 .to_display_point(map);
14533 let end = self
14534 .end
14535 .to_point(&map.buffer_snapshot)
14536 .to_display_point(map);
14537 if self.reversed {
14538 end..start
14539 } else {
14540 start..end
14541 }
14542 }
14543
14544 fn spanned_rows(
14545 &self,
14546 include_end_if_at_line_start: bool,
14547 map: &DisplaySnapshot,
14548 ) -> Range<MultiBufferRow> {
14549 let start = self.start.to_point(&map.buffer_snapshot);
14550 let mut end = self.end.to_point(&map.buffer_snapshot);
14551 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14552 end.row -= 1;
14553 }
14554
14555 let buffer_start = map.prev_line_boundary(start).0;
14556 let buffer_end = map.next_line_boundary(end).0;
14557 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14558 }
14559}
14560
14561impl<T: InvalidationRegion> InvalidationStack<T> {
14562 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14563 where
14564 S: Clone + ToOffset,
14565 {
14566 while let Some(region) = self.last() {
14567 let all_selections_inside_invalidation_ranges =
14568 if selections.len() == region.ranges().len() {
14569 selections
14570 .iter()
14571 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14572 .all(|(selection, invalidation_range)| {
14573 let head = selection.head().to_offset(buffer);
14574 invalidation_range.start <= head && invalidation_range.end >= head
14575 })
14576 } else {
14577 false
14578 };
14579
14580 if all_selections_inside_invalidation_ranges {
14581 break;
14582 } else {
14583 self.pop();
14584 }
14585 }
14586 }
14587}
14588
14589impl<T> Default for InvalidationStack<T> {
14590 fn default() -> Self {
14591 Self(Default::default())
14592 }
14593}
14594
14595impl<T> Deref for InvalidationStack<T> {
14596 type Target = Vec<T>;
14597
14598 fn deref(&self) -> &Self::Target {
14599 &self.0
14600 }
14601}
14602
14603impl<T> DerefMut for InvalidationStack<T> {
14604 fn deref_mut(&mut self) -> &mut Self::Target {
14605 &mut self.0
14606 }
14607}
14608
14609impl InvalidationRegion for SnippetState {
14610 fn ranges(&self) -> &[Range<Anchor>] {
14611 &self.ranges[self.active_index]
14612 }
14613}
14614
14615pub fn diagnostic_block_renderer(
14616 diagnostic: Diagnostic,
14617 max_message_rows: Option<u8>,
14618 allow_closing: bool,
14619 _is_valid: bool,
14620) -> RenderBlock {
14621 let (text_without_backticks, code_ranges) =
14622 highlight_diagnostic_message(&diagnostic, max_message_rows);
14623
14624 Box::new(move |cx: &mut BlockContext| {
14625 let group_id: SharedString = cx.block_id.to_string().into();
14626
14627 let mut text_style = cx.text_style().clone();
14628 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14629 let theme_settings = ThemeSettings::get_global(cx);
14630 text_style.font_family = theme_settings.buffer_font.family.clone();
14631 text_style.font_style = theme_settings.buffer_font.style;
14632 text_style.font_features = theme_settings.buffer_font.features.clone();
14633 text_style.font_weight = theme_settings.buffer_font.weight;
14634
14635 let multi_line_diagnostic = diagnostic.message.contains('\n');
14636
14637 let buttons = |diagnostic: &Diagnostic| {
14638 if multi_line_diagnostic {
14639 v_flex()
14640 } else {
14641 h_flex()
14642 }
14643 .when(allow_closing, |div| {
14644 div.children(diagnostic.is_primary.then(|| {
14645 IconButton::new("close-block", IconName::XCircle)
14646 .icon_color(Color::Muted)
14647 .size(ButtonSize::Compact)
14648 .style(ButtonStyle::Transparent)
14649 .visible_on_hover(group_id.clone())
14650 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14651 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14652 }))
14653 })
14654 .child(
14655 IconButton::new("copy-block", IconName::Copy)
14656 .icon_color(Color::Muted)
14657 .size(ButtonSize::Compact)
14658 .style(ButtonStyle::Transparent)
14659 .visible_on_hover(group_id.clone())
14660 .on_click({
14661 let message = diagnostic.message.clone();
14662 move |_click, cx| {
14663 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14664 }
14665 })
14666 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14667 )
14668 };
14669
14670 let icon_size = buttons(&diagnostic)
14671 .into_any_element()
14672 .layout_as_root(AvailableSpace::min_size(), cx);
14673
14674 h_flex()
14675 .id(cx.block_id)
14676 .group(group_id.clone())
14677 .relative()
14678 .size_full()
14679 .pl(cx.gutter_dimensions.width)
14680 .w(cx.max_width - cx.gutter_dimensions.full_width())
14681 .child(
14682 div()
14683 .flex()
14684 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14685 .flex_shrink(),
14686 )
14687 .child(buttons(&diagnostic))
14688 .child(div().flex().flex_shrink_0().child(
14689 StyledText::new(text_without_backticks.clone()).with_highlights(
14690 &text_style,
14691 code_ranges.iter().map(|range| {
14692 (
14693 range.clone(),
14694 HighlightStyle {
14695 font_weight: Some(FontWeight::BOLD),
14696 ..Default::default()
14697 },
14698 )
14699 }),
14700 ),
14701 ))
14702 .into_any_element()
14703 })
14704}
14705
14706pub fn highlight_diagnostic_message(
14707 diagnostic: &Diagnostic,
14708 mut max_message_rows: Option<u8>,
14709) -> (SharedString, Vec<Range<usize>>) {
14710 let mut text_without_backticks = String::new();
14711 let mut code_ranges = Vec::new();
14712
14713 if let Some(source) = &diagnostic.source {
14714 text_without_backticks.push_str(source);
14715 code_ranges.push(0..source.len());
14716 text_without_backticks.push_str(": ");
14717 }
14718
14719 let mut prev_offset = 0;
14720 let mut in_code_block = false;
14721 let has_row_limit = max_message_rows.is_some();
14722 let mut newline_indices = diagnostic
14723 .message
14724 .match_indices('\n')
14725 .filter(|_| has_row_limit)
14726 .map(|(ix, _)| ix)
14727 .fuse()
14728 .peekable();
14729
14730 for (quote_ix, _) in diagnostic
14731 .message
14732 .match_indices('`')
14733 .chain([(diagnostic.message.len(), "")])
14734 {
14735 let mut first_newline_ix = None;
14736 let mut last_newline_ix = None;
14737 while let Some(newline_ix) = newline_indices.peek() {
14738 if *newline_ix < quote_ix {
14739 if first_newline_ix.is_none() {
14740 first_newline_ix = Some(*newline_ix);
14741 }
14742 last_newline_ix = Some(*newline_ix);
14743
14744 if let Some(rows_left) = &mut max_message_rows {
14745 if *rows_left == 0 {
14746 break;
14747 } else {
14748 *rows_left -= 1;
14749 }
14750 }
14751 let _ = newline_indices.next();
14752 } else {
14753 break;
14754 }
14755 }
14756 let prev_len = text_without_backticks.len();
14757 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14758 text_without_backticks.push_str(new_text);
14759 if in_code_block {
14760 code_ranges.push(prev_len..text_without_backticks.len());
14761 }
14762 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14763 in_code_block = !in_code_block;
14764 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14765 text_without_backticks.push_str("...");
14766 break;
14767 }
14768 }
14769
14770 (text_without_backticks.into(), code_ranges)
14771}
14772
14773fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14774 match severity {
14775 DiagnosticSeverity::ERROR => colors.error,
14776 DiagnosticSeverity::WARNING => colors.warning,
14777 DiagnosticSeverity::INFORMATION => colors.info,
14778 DiagnosticSeverity::HINT => colors.info,
14779 _ => colors.ignored,
14780 }
14781}
14782
14783pub fn styled_runs_for_code_label<'a>(
14784 label: &'a CodeLabel,
14785 syntax_theme: &'a theme::SyntaxTheme,
14786) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14787 let fade_out = HighlightStyle {
14788 fade_out: Some(0.35),
14789 ..Default::default()
14790 };
14791
14792 let mut prev_end = label.filter_range.end;
14793 label
14794 .runs
14795 .iter()
14796 .enumerate()
14797 .flat_map(move |(ix, (range, highlight_id))| {
14798 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14799 style
14800 } else {
14801 return Default::default();
14802 };
14803 let mut muted_style = style;
14804 muted_style.highlight(fade_out);
14805
14806 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14807 if range.start >= label.filter_range.end {
14808 if range.start > prev_end {
14809 runs.push((prev_end..range.start, fade_out));
14810 }
14811 runs.push((range.clone(), muted_style));
14812 } else if range.end <= label.filter_range.end {
14813 runs.push((range.clone(), style));
14814 } else {
14815 runs.push((range.start..label.filter_range.end, style));
14816 runs.push((label.filter_range.end..range.end, muted_style));
14817 }
14818 prev_end = cmp::max(prev_end, range.end);
14819
14820 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14821 runs.push((prev_end..label.text.len(), fade_out));
14822 }
14823
14824 runs
14825 })
14826}
14827
14828pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14829 let mut prev_index = 0;
14830 let mut prev_codepoint: Option<char> = None;
14831 text.char_indices()
14832 .chain([(text.len(), '\0')])
14833 .filter_map(move |(index, codepoint)| {
14834 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14835 let is_boundary = index == text.len()
14836 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14837 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14838 if is_boundary {
14839 let chunk = &text[prev_index..index];
14840 prev_index = index;
14841 Some(chunk)
14842 } else {
14843 None
14844 }
14845 })
14846}
14847
14848pub trait RangeToAnchorExt: Sized {
14849 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14850
14851 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14852 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14853 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14854 }
14855}
14856
14857impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14858 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14859 let start_offset = self.start.to_offset(snapshot);
14860 let end_offset = self.end.to_offset(snapshot);
14861 if start_offset == end_offset {
14862 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14863 } else {
14864 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14865 }
14866 }
14867}
14868
14869pub trait RowExt {
14870 fn as_f32(&self) -> f32;
14871
14872 fn next_row(&self) -> Self;
14873
14874 fn previous_row(&self) -> Self;
14875
14876 fn minus(&self, other: Self) -> u32;
14877}
14878
14879impl RowExt for DisplayRow {
14880 fn as_f32(&self) -> f32 {
14881 self.0 as f32
14882 }
14883
14884 fn next_row(&self) -> Self {
14885 Self(self.0 + 1)
14886 }
14887
14888 fn previous_row(&self) -> Self {
14889 Self(self.0.saturating_sub(1))
14890 }
14891
14892 fn minus(&self, other: Self) -> u32 {
14893 self.0 - other.0
14894 }
14895}
14896
14897impl RowExt for MultiBufferRow {
14898 fn as_f32(&self) -> f32 {
14899 self.0 as f32
14900 }
14901
14902 fn next_row(&self) -> Self {
14903 Self(self.0 + 1)
14904 }
14905
14906 fn previous_row(&self) -> Self {
14907 Self(self.0.saturating_sub(1))
14908 }
14909
14910 fn minus(&self, other: Self) -> u32 {
14911 self.0 - other.0
14912 }
14913}
14914
14915trait RowRangeExt {
14916 type Row;
14917
14918 fn len(&self) -> usize;
14919
14920 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14921}
14922
14923impl RowRangeExt for Range<MultiBufferRow> {
14924 type Row = MultiBufferRow;
14925
14926 fn len(&self) -> usize {
14927 (self.end.0 - self.start.0) as usize
14928 }
14929
14930 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14931 (self.start.0..self.end.0).map(MultiBufferRow)
14932 }
14933}
14934
14935impl RowRangeExt for Range<DisplayRow> {
14936 type Row = DisplayRow;
14937
14938 fn len(&self) -> usize {
14939 (self.end.0 - self.start.0) as usize
14940 }
14941
14942 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14943 (self.start.0..self.end.0).map(DisplayRow)
14944 }
14945}
14946
14947fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14948 if hunk.diff_base_byte_range.is_empty() {
14949 DiffHunkStatus::Added
14950 } else if hunk.row_range.is_empty() {
14951 DiffHunkStatus::Removed
14952 } else {
14953 DiffHunkStatus::Modified
14954 }
14955}
14956
14957/// If select range has more than one line, we
14958/// just point the cursor to range.start.
14959fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14960 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14961 range
14962 } else {
14963 range.start..range.start
14964 }
14965}
14966
14967const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);