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::*;
52use aho_corasick::AhoCorasick;
53use anyhow::{anyhow, Context as _, Result};
54use blink_manager::BlinkManager;
55use client::{Collaborator, ParticipantIndex};
56use clock::ReplicaId;
57use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
58use convert_case::{Case, Casing};
59use debounced_delay::DebouncedDelay;
60use display_map::*;
61pub use display_map::{DisplayPoint, FoldPlaceholder};
62pub use editor_settings::{
63 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
64};
65pub use editor_settings_controls::*;
66use element::LineWithInvisibles;
67pub use element::{
68 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
69};
70use futures::{future, FutureExt};
71use fuzzy::{StringMatch, StringMatchCandidate};
72use git::blame::GitBlame;
73use gpui::{
74 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
75 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
76 ClipboardItem, Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent,
77 FocusableView, FontId, FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext,
78 ListSizingBehavior, Model, ModelContext, MouseButton, PaintQuad, ParentElement, Pixels, Render,
79 ScrollStrategy, SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task,
80 TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle, UniformListScrollHandle, View,
81 ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle, WeakView, WindowContext,
82};
83use highlight_matching_bracket::refresh_matching_bracket_highlights;
84use hover_popover::{hide_hover, HoverState};
85pub(crate) use hunk_diff::HoveredHunk;
86use hunk_diff::{diff_hunk_to_display, ExpandedHunks};
87use indent_guides::ActiveIndentGuidesState;
88use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
89pub use inline_completion_provider::*;
90pub use items::MAX_TAB_TITLE_LEN;
91use itertools::Itertools;
92use language::{
93 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
94 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
95 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
96 Point, Selection, SelectionGoal, TransactionId,
97};
98use language::{
99 point_to_lsp, BufferRow, CharClassifier, LanguageServerName, Runnable, RunnableRange,
100};
101use linked_editing_ranges::refresh_linked_ranges;
102pub use proposed_changes_editor::{
103 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
104};
105use similar::{ChangeTag, TextDiff};
106use std::iter::Peekable;
107use task::{ResolvedTask, TaskTemplate, TaskVariables};
108
109use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
110pub use lsp::CompletionContext;
111use lsp::{
112 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
113 LanguageServerId,
114};
115use mouse_context_menu::MouseContextMenu;
116use movement::TextLayoutDetails;
117pub use multi_buffer::{
118 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
119 ToPoint,
120};
121use multi_buffer::{
122 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
123};
124use ordered_float::OrderedFloat;
125use parking_lot::{Mutex, RwLock};
126use project::{
127 lsp_store::{FormatTarget, FormatTrigger},
128 project_settings::{GitGutterSetting, ProjectSettings},
129 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Item, Location,
130 LocationLink, Project, ProjectPath, ProjectTransaction, TaskSourceKind,
131};
132use rand::prelude::*;
133use rpc::{proto::*, ErrorExt};
134use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
135use selections_collection::{
136 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
137};
138use serde::{Deserialize, Serialize};
139use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
140use smallvec::SmallVec;
141use snippet::Snippet;
142use std::{
143 any::TypeId,
144 borrow::Cow,
145 cell::RefCell,
146 cmp::{self, Ordering, Reverse},
147 mem,
148 num::NonZeroU32,
149 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
150 path::{Path, PathBuf},
151 rc::Rc,
152 sync::Arc,
153 time::{Duration, Instant},
154};
155pub use sum_tree::Bias;
156use sum_tree::TreeMap;
157use text::{BufferId, OffsetUtf16, Rope};
158use theme::{
159 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
160 ThemeColors, ThemeSettings,
161};
162use ui::{
163 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
164 ListItem, Popover, PopoverMenuHandle, Tooltip,
165};
166use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
167use workspace::item::{ItemHandle, PreviewTabsSettings};
168use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
169use workspace::{
170 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
171};
172use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
173
174use crate::hover_links::find_url;
175use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
176
177pub const FILE_HEADER_HEIGHT: u32 = 2;
178pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
179pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
180pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
181const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
182const MAX_LINE_LEN: usize = 1024;
183const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
184const MAX_SELECTION_HISTORY_LEN: usize = 1024;
185pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
186#[doc(hidden)]
187pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
188#[doc(hidden)]
189pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
190
191pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
192pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
193
194pub fn render_parsed_markdown(
195 element_id: impl Into<ElementId>,
196 parsed: &language::ParsedMarkdown,
197 editor_style: &EditorStyle,
198 workspace: Option<WeakView<Workspace>>,
199 cx: &mut WindowContext,
200) -> InteractiveText {
201 let code_span_background_color = cx
202 .theme()
203 .colors()
204 .editor_document_highlight_read_background;
205
206 let highlights = gpui::combine_highlights(
207 parsed.highlights.iter().filter_map(|(range, highlight)| {
208 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
209 Some((range.clone(), highlight))
210 }),
211 parsed
212 .regions
213 .iter()
214 .zip(&parsed.region_ranges)
215 .filter_map(|(region, range)| {
216 if region.code {
217 Some((
218 range.clone(),
219 HighlightStyle {
220 background_color: Some(code_span_background_color),
221 ..Default::default()
222 },
223 ))
224 } else {
225 None
226 }
227 }),
228 );
229
230 let mut links = Vec::new();
231 let mut link_ranges = Vec::new();
232 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
233 if let Some(link) = region.link.clone() {
234 links.push(link);
235 link_ranges.push(range.clone());
236 }
237 }
238
239 InteractiveText::new(
240 element_id,
241 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
242 )
243 .on_click(link_ranges, move |clicked_range_ix, cx| {
244 match &links[clicked_range_ix] {
245 markdown::Link::Web { url } => cx.open_url(url),
246 markdown::Link::Path { path } => {
247 if let Some(workspace) = &workspace {
248 _ = workspace.update(cx, |workspace, cx| {
249 workspace.open_abs_path(path.clone(), false, cx).detach();
250 });
251 }
252 }
253 }
254 })
255}
256
257#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
258pub(crate) enum InlayId {
259 Suggestion(usize),
260 Hint(usize),
261}
262
263impl InlayId {
264 fn id(&self) -> usize {
265 match self {
266 Self::Suggestion(id) => *id,
267 Self::Hint(id) => *id,
268 }
269 }
270}
271
272enum DiffRowHighlight {}
273enum DocumentHighlightRead {}
274enum DocumentHighlightWrite {}
275enum InputComposition {}
276
277#[derive(Copy, Clone, PartialEq, Eq)]
278pub enum Direction {
279 Prev,
280 Next,
281}
282
283#[derive(Debug, Copy, Clone, PartialEq, Eq)]
284pub enum Navigated {
285 Yes,
286 No,
287}
288
289impl Navigated {
290 pub fn from_bool(yes: bool) -> Navigated {
291 if yes {
292 Navigated::Yes
293 } else {
294 Navigated::No
295 }
296 }
297}
298
299pub fn init_settings(cx: &mut AppContext) {
300 EditorSettings::register(cx);
301}
302
303pub fn init(cx: &mut AppContext) {
304 init_settings(cx);
305
306 workspace::register_project_item::<Editor>(cx);
307 workspace::FollowableViewRegistry::register::<Editor>(cx);
308 workspace::register_serializable_item::<Editor>(cx);
309
310 cx.observe_new_views(
311 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
312 workspace.register_action(Editor::new_file);
313 workspace.register_action(Editor::new_file_vertical);
314 workspace.register_action(Editor::new_file_horizontal);
315 },
316 )
317 .detach();
318
319 cx.on_action(move |_: &workspace::NewFile, cx| {
320 let app_state = workspace::AppState::global(cx);
321 if let Some(app_state) = app_state.upgrade() {
322 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
323 Editor::new_file(workspace, &Default::default(), cx)
324 })
325 .detach();
326 }
327 });
328 cx.on_action(move |_: &workspace::NewWindow, cx| {
329 let app_state = workspace::AppState::global(cx);
330 if let Some(app_state) = app_state.upgrade() {
331 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
332 Editor::new_file(workspace, &Default::default(), cx)
333 })
334 .detach();
335 }
336 });
337}
338
339pub struct SearchWithinRange;
340
341trait InvalidationRegion {
342 fn ranges(&self) -> &[Range<Anchor>];
343}
344
345#[derive(Clone, Debug, PartialEq)]
346pub enum SelectPhase {
347 Begin {
348 position: DisplayPoint,
349 add: bool,
350 click_count: usize,
351 },
352 BeginColumnar {
353 position: DisplayPoint,
354 reset: bool,
355 goal_column: u32,
356 },
357 Extend {
358 position: DisplayPoint,
359 click_count: usize,
360 },
361 Update {
362 position: DisplayPoint,
363 goal_column: u32,
364 scroll_delta: gpui::Point<f32>,
365 },
366 End,
367}
368
369#[derive(Clone, Debug)]
370pub enum SelectMode {
371 Character,
372 Word(Range<Anchor>),
373 Line(Range<Anchor>),
374 All,
375}
376
377#[derive(Copy, Clone, PartialEq, Eq, Debug)]
378pub enum EditorMode {
379 SingleLine { auto_width: bool },
380 AutoHeight { max_lines: usize },
381 Full,
382}
383
384#[derive(Copy, Clone, Debug)]
385pub enum SoftWrap {
386 /// Prefer not to wrap at all.
387 ///
388 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
389 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
390 GitDiff,
391 /// Prefer a single line generally, unless an overly long line is encountered.
392 None,
393 /// Soft wrap lines that exceed the editor width.
394 EditorWidth,
395 /// Soft wrap lines at the preferred line length.
396 Column(u32),
397 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
398 Bounded(u32),
399}
400
401#[derive(Clone)]
402pub struct EditorStyle {
403 pub background: Hsla,
404 pub local_player: PlayerColor,
405 pub text: TextStyle,
406 pub scrollbar_width: Pixels,
407 pub syntax: Arc<SyntaxTheme>,
408 pub status: StatusColors,
409 pub inlay_hints_style: HighlightStyle,
410 pub suggestions_style: HighlightStyle,
411 pub unnecessary_code_fade: f32,
412}
413
414impl Default for EditorStyle {
415 fn default() -> Self {
416 Self {
417 background: Hsla::default(),
418 local_player: PlayerColor::default(),
419 text: TextStyle::default(),
420 scrollbar_width: Pixels::default(),
421 syntax: Default::default(),
422 // HACK: Status colors don't have a real default.
423 // We should look into removing the status colors from the editor
424 // style and retrieve them directly from the theme.
425 status: StatusColors::dark(),
426 inlay_hints_style: HighlightStyle::default(),
427 suggestions_style: HighlightStyle::default(),
428 unnecessary_code_fade: Default::default(),
429 }
430 }
431}
432
433pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
434 let show_background = language_settings::language_settings(None, None, cx)
435 .inlay_hints
436 .show_background;
437
438 HighlightStyle {
439 color: Some(cx.theme().status().hint),
440 background_color: show_background.then(|| cx.theme().status().hint_background),
441 ..HighlightStyle::default()
442 }
443}
444
445type CompletionId = usize;
446
447#[derive(Clone, Debug)]
448struct CompletionState {
449 // render_inlay_ids represents the inlay hints that are inserted
450 // for rendering the inline completions. They may be discontinuous
451 // in the event that the completion provider returns some intersection
452 // with the existing content.
453 render_inlay_ids: Vec<InlayId>,
454 // text is the resulting rope that is inserted when the user accepts a completion.
455 text: Rope,
456 // position is the position of the cursor when the completion was triggered.
457 position: multi_buffer::Anchor,
458 // delete_range is the range of text that this completion state covers.
459 // if the completion is accepted, this range should be deleted.
460 delete_range: Option<Range<multi_buffer::Anchor>>,
461}
462
463#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
464struct EditorActionId(usize);
465
466impl EditorActionId {
467 pub fn post_inc(&mut self) -> Self {
468 let answer = self.0;
469
470 *self = Self(answer + 1);
471
472 Self(answer)
473 }
474}
475
476// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
477// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
478
479type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
480type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
481
482#[derive(Default)]
483struct ScrollbarMarkerState {
484 scrollbar_size: Size<Pixels>,
485 dirty: bool,
486 markers: Arc<[PaintQuad]>,
487 pending_refresh: Option<Task<Result<()>>>,
488}
489
490impl ScrollbarMarkerState {
491 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
492 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
493 }
494}
495
496#[derive(Clone, Debug)]
497struct RunnableTasks {
498 templates: Vec<(TaskSourceKind, TaskTemplate)>,
499 offset: MultiBufferOffset,
500 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
501 column: u32,
502 // Values of all named captures, including those starting with '_'
503 extra_variables: HashMap<String, String>,
504 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
505 context_range: Range<BufferOffset>,
506}
507
508impl RunnableTasks {
509 fn resolve<'a>(
510 &'a self,
511 cx: &'a task::TaskContext,
512 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
513 self.templates.iter().filter_map(|(kind, template)| {
514 template
515 .resolve_task(&kind.to_id_base(), cx)
516 .map(|task| (kind.clone(), task))
517 })
518 }
519}
520
521#[derive(Clone)]
522struct ResolvedTasks {
523 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
524 position: Anchor,
525}
526#[derive(Copy, Clone, Debug)]
527struct MultiBufferOffset(usize);
528#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
529struct BufferOffset(usize);
530
531// Addons allow storing per-editor state in other crates (e.g. Vim)
532pub trait Addon: 'static {
533 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
534
535 fn to_any(&self) -> &dyn std::any::Any;
536}
537
538/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
539///
540/// See the [module level documentation](self) for more information.
541pub struct Editor {
542 focus_handle: FocusHandle,
543 last_focused_descendant: Option<WeakFocusHandle>,
544 /// The text buffer being edited
545 buffer: Model<MultiBuffer>,
546 /// Map of how text in the buffer should be displayed.
547 /// Handles soft wraps, folds, fake inlay text insertions, etc.
548 pub display_map: Model<DisplayMap>,
549 pub selections: SelectionsCollection,
550 pub scroll_manager: ScrollManager,
551 /// When inline assist editors are linked, they all render cursors because
552 /// typing enters text into each of them, even the ones that aren't focused.
553 pub(crate) show_cursor_when_unfocused: bool,
554 columnar_selection_tail: Option<Anchor>,
555 add_selections_state: Option<AddSelectionsState>,
556 select_next_state: Option<SelectNextState>,
557 select_prev_state: Option<SelectNextState>,
558 selection_history: SelectionHistory,
559 autoclose_regions: Vec<AutocloseRegion>,
560 snippet_stack: InvalidationStack<SnippetState>,
561 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
562 ime_transaction: Option<TransactionId>,
563 active_diagnostics: Option<ActiveDiagnosticGroup>,
564 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
565
566 project: Option<Model<Project>>,
567 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
568 completion_provider: Option<Box<dyn CompletionProvider>>,
569 collaboration_hub: Option<Box<dyn CollaborationHub>>,
570 blink_manager: Model<BlinkManager>,
571 show_cursor_names: bool,
572 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
573 pub show_local_selections: bool,
574 mode: EditorMode,
575 show_breadcrumbs: bool,
576 show_gutter: bool,
577 show_line_numbers: Option<bool>,
578 use_relative_line_numbers: Option<bool>,
579 show_git_diff_gutter: Option<bool>,
580 show_code_actions: Option<bool>,
581 show_runnables: Option<bool>,
582 show_wrap_guides: Option<bool>,
583 show_indent_guides: Option<bool>,
584 placeholder_text: Option<Arc<str>>,
585 highlight_order: usize,
586 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
587 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
588 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
589 scrollbar_marker_state: ScrollbarMarkerState,
590 active_indent_guides_state: ActiveIndentGuidesState,
591 nav_history: Option<ItemNavHistory>,
592 context_menu: RwLock<Option<ContextMenu>>,
593 mouse_context_menu: Option<MouseContextMenu>,
594 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
595 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
596 signature_help_state: SignatureHelpState,
597 auto_signature_help: Option<bool>,
598 find_all_references_task_sources: Vec<Anchor>,
599 next_completion_id: CompletionId,
600 completion_documentation_pre_resolve_debounce: DebouncedDelay,
601 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
602 code_actions_task: Option<Task<Result<()>>>,
603 document_highlights_task: Option<Task<()>>,
604 linked_editing_range_task: Option<Task<Option<()>>>,
605 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
606 pending_rename: Option<RenameState>,
607 searchable: bool,
608 cursor_shape: CursorShape,
609 current_line_highlight: Option<CurrentLineHighlight>,
610 collapse_matches: bool,
611 autoindent_mode: Option<AutoindentMode>,
612 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
613 input_enabled: bool,
614 use_modal_editing: bool,
615 read_only: bool,
616 leader_peer_id: Option<PeerId>,
617 remote_id: Option<ViewId>,
618 hover_state: HoverState,
619 gutter_hovered: bool,
620 hovered_link_state: Option<HoveredLinkState>,
621 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
622 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
623 active_inline_completion: Option<CompletionState>,
624 // enable_inline_completions is a switch that Vim can use to disable
625 // inline completions based on its mode.
626 enable_inline_completions: bool,
627 show_inline_completions_override: Option<bool>,
628 inlay_hint_cache: InlayHintCache,
629 expanded_hunks: ExpandedHunks,
630 next_inlay_id: usize,
631 _subscriptions: Vec<Subscription>,
632 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
633 gutter_dimensions: GutterDimensions,
634 style: Option<EditorStyle>,
635 text_style_refinement: Option<TextStyleRefinement>,
636 next_editor_action_id: EditorActionId,
637 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
638 use_autoclose: bool,
639 use_auto_surround: bool,
640 auto_replace_emoji_shortcode: bool,
641 show_git_blame_gutter: bool,
642 show_git_blame_inline: bool,
643 show_git_blame_inline_delay_task: Option<Task<()>>,
644 git_blame_inline_enabled: bool,
645 serialize_dirty_buffers: bool,
646 show_selection_menu: Option<bool>,
647 blame: Option<Model<GitBlame>>,
648 blame_subscription: Option<Subscription>,
649 custom_context_menu: Option<
650 Box<
651 dyn 'static
652 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
653 >,
654 >,
655 last_bounds: Option<Bounds<Pixels>>,
656 expect_bounds_change: Option<Bounds<Pixels>>,
657 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
658 tasks_update_task: Option<Task<()>>,
659 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
660 breadcrumb_header: Option<String>,
661 focused_block: Option<FocusedBlock>,
662 next_scroll_position: NextScrollCursorCenterTopBottom,
663 addons: HashMap<TypeId, Box<dyn Addon>>,
664 _scroll_cursor_center_top_bottom_task: Task<()>,
665}
666
667#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
668enum NextScrollCursorCenterTopBottom {
669 #[default]
670 Center,
671 Top,
672 Bottom,
673}
674
675impl NextScrollCursorCenterTopBottom {
676 fn next(&self) -> Self {
677 match self {
678 Self::Center => Self::Top,
679 Self::Top => Self::Bottom,
680 Self::Bottom => Self::Center,
681 }
682 }
683}
684
685#[derive(Clone)]
686pub struct EditorSnapshot {
687 pub mode: EditorMode,
688 show_gutter: bool,
689 show_line_numbers: Option<bool>,
690 show_git_diff_gutter: Option<bool>,
691 show_code_actions: Option<bool>,
692 show_runnables: Option<bool>,
693 git_blame_gutter_max_author_length: Option<usize>,
694 pub display_snapshot: DisplaySnapshot,
695 pub placeholder_text: Option<Arc<str>>,
696 is_focused: bool,
697 scroll_anchor: ScrollAnchor,
698 ongoing_scroll: OngoingScroll,
699 current_line_highlight: CurrentLineHighlight,
700 gutter_hovered: bool,
701}
702
703const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
704
705#[derive(Default, Debug, Clone, Copy)]
706pub struct GutterDimensions {
707 pub left_padding: Pixels,
708 pub right_padding: Pixels,
709 pub width: Pixels,
710 pub margin: Pixels,
711 pub git_blame_entries_width: Option<Pixels>,
712}
713
714impl GutterDimensions {
715 /// The full width of the space taken up by the gutter.
716 pub fn full_width(&self) -> Pixels {
717 self.margin + self.width
718 }
719
720 /// The width of the space reserved for the fold indicators,
721 /// use alongside 'justify_end' and `gutter_width` to
722 /// right align content with the line numbers
723 pub fn fold_area_width(&self) -> Pixels {
724 self.margin + self.right_padding
725 }
726}
727
728#[derive(Debug)]
729pub struct RemoteSelection {
730 pub replica_id: ReplicaId,
731 pub selection: Selection<Anchor>,
732 pub cursor_shape: CursorShape,
733 pub peer_id: PeerId,
734 pub line_mode: bool,
735 pub participant_index: Option<ParticipantIndex>,
736 pub user_name: Option<SharedString>,
737}
738
739#[derive(Clone, Debug)]
740struct SelectionHistoryEntry {
741 selections: Arc<[Selection<Anchor>]>,
742 select_next_state: Option<SelectNextState>,
743 select_prev_state: Option<SelectNextState>,
744 add_selections_state: Option<AddSelectionsState>,
745}
746
747enum SelectionHistoryMode {
748 Normal,
749 Undoing,
750 Redoing,
751}
752
753#[derive(Clone, PartialEq, Eq, Hash)]
754struct HoveredCursor {
755 replica_id: u16,
756 selection_id: usize,
757}
758
759impl Default for SelectionHistoryMode {
760 fn default() -> Self {
761 Self::Normal
762 }
763}
764
765#[derive(Default)]
766struct SelectionHistory {
767 #[allow(clippy::type_complexity)]
768 selections_by_transaction:
769 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
770 mode: SelectionHistoryMode,
771 undo_stack: VecDeque<SelectionHistoryEntry>,
772 redo_stack: VecDeque<SelectionHistoryEntry>,
773}
774
775impl SelectionHistory {
776 fn insert_transaction(
777 &mut self,
778 transaction_id: TransactionId,
779 selections: Arc<[Selection<Anchor>]>,
780 ) {
781 self.selections_by_transaction
782 .insert(transaction_id, (selections, None));
783 }
784
785 #[allow(clippy::type_complexity)]
786 fn transaction(
787 &self,
788 transaction_id: TransactionId,
789 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
790 self.selections_by_transaction.get(&transaction_id)
791 }
792
793 #[allow(clippy::type_complexity)]
794 fn transaction_mut(
795 &mut self,
796 transaction_id: TransactionId,
797 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
798 self.selections_by_transaction.get_mut(&transaction_id)
799 }
800
801 fn push(&mut self, entry: SelectionHistoryEntry) {
802 if !entry.selections.is_empty() {
803 match self.mode {
804 SelectionHistoryMode::Normal => {
805 self.push_undo(entry);
806 self.redo_stack.clear();
807 }
808 SelectionHistoryMode::Undoing => self.push_redo(entry),
809 SelectionHistoryMode::Redoing => self.push_undo(entry),
810 }
811 }
812 }
813
814 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
815 if self
816 .undo_stack
817 .back()
818 .map_or(true, |e| e.selections != entry.selections)
819 {
820 self.undo_stack.push_back(entry);
821 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
822 self.undo_stack.pop_front();
823 }
824 }
825 }
826
827 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
828 if self
829 .redo_stack
830 .back()
831 .map_or(true, |e| e.selections != entry.selections)
832 {
833 self.redo_stack.push_back(entry);
834 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
835 self.redo_stack.pop_front();
836 }
837 }
838 }
839}
840
841struct RowHighlight {
842 index: usize,
843 range: Range<Anchor>,
844 color: Hsla,
845 should_autoscroll: bool,
846}
847
848#[derive(Clone, Debug)]
849struct AddSelectionsState {
850 above: bool,
851 stack: Vec<usize>,
852}
853
854#[derive(Clone)]
855struct SelectNextState {
856 query: AhoCorasick,
857 wordwise: bool,
858 done: bool,
859}
860
861impl std::fmt::Debug for SelectNextState {
862 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
863 f.debug_struct(std::any::type_name::<Self>())
864 .field("wordwise", &self.wordwise)
865 .field("done", &self.done)
866 .finish()
867 }
868}
869
870#[derive(Debug)]
871struct AutocloseRegion {
872 selection_id: usize,
873 range: Range<Anchor>,
874 pair: BracketPair,
875}
876
877#[derive(Debug)]
878struct SnippetState {
879 ranges: Vec<Vec<Range<Anchor>>>,
880 active_index: usize,
881}
882
883#[doc(hidden)]
884pub struct RenameState {
885 pub range: Range<Anchor>,
886 pub old_name: Arc<str>,
887 pub editor: View<Editor>,
888 block_id: CustomBlockId,
889}
890
891struct InvalidationStack<T>(Vec<T>);
892
893struct RegisteredInlineCompletionProvider {
894 provider: Arc<dyn InlineCompletionProviderHandle>,
895 _subscription: Subscription,
896}
897
898enum ContextMenu {
899 Completions(CompletionsMenu),
900 CodeActions(CodeActionsMenu),
901}
902
903impl ContextMenu {
904 fn select_first(
905 &mut self,
906 provider: Option<&dyn CompletionProvider>,
907 cx: &mut ViewContext<Editor>,
908 ) -> bool {
909 if self.visible() {
910 match self {
911 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
912 ContextMenu::CodeActions(menu) => menu.select_first(cx),
913 }
914 true
915 } else {
916 false
917 }
918 }
919
920 fn select_prev(
921 &mut self,
922 provider: Option<&dyn CompletionProvider>,
923 cx: &mut ViewContext<Editor>,
924 ) -> bool {
925 if self.visible() {
926 match self {
927 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
928 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
929 }
930 true
931 } else {
932 false
933 }
934 }
935
936 fn select_next(
937 &mut self,
938 provider: Option<&dyn CompletionProvider>,
939 cx: &mut ViewContext<Editor>,
940 ) -> bool {
941 if self.visible() {
942 match self {
943 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
944 ContextMenu::CodeActions(menu) => menu.select_next(cx),
945 }
946 true
947 } else {
948 false
949 }
950 }
951
952 fn select_last(
953 &mut self,
954 provider: Option<&dyn CompletionProvider>,
955 cx: &mut ViewContext<Editor>,
956 ) -> bool {
957 if self.visible() {
958 match self {
959 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
960 ContextMenu::CodeActions(menu) => menu.select_last(cx),
961 }
962 true
963 } else {
964 false
965 }
966 }
967
968 fn visible(&self) -> bool {
969 match self {
970 ContextMenu::Completions(menu) => menu.visible(),
971 ContextMenu::CodeActions(menu) => menu.visible(),
972 }
973 }
974
975 fn render(
976 &self,
977 cursor_position: DisplayPoint,
978 style: &EditorStyle,
979 max_height: Pixels,
980 workspace: Option<WeakView<Workspace>>,
981 cx: &mut ViewContext<Editor>,
982 ) -> (ContextMenuOrigin, AnyElement) {
983 match self {
984 ContextMenu::Completions(menu) => (
985 ContextMenuOrigin::EditorPoint(cursor_position),
986 menu.render(style, max_height, workspace, cx),
987 ),
988 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
989 }
990 }
991}
992
993enum ContextMenuOrigin {
994 EditorPoint(DisplayPoint),
995 GutterIndicator(DisplayRow),
996}
997
998#[derive(Clone)]
999struct CompletionsMenu {
1000 id: CompletionId,
1001 sort_completions: bool,
1002 initial_position: Anchor,
1003 buffer: Model<Buffer>,
1004 completions: Arc<RwLock<Box<[Completion]>>>,
1005 match_candidates: Arc<[StringMatchCandidate]>,
1006 matches: Arc<[StringMatch]>,
1007 selected_item: usize,
1008 scroll_handle: UniformListScrollHandle,
1009 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
1010}
1011
1012impl CompletionsMenu {
1013 fn select_first(
1014 &mut self,
1015 provider: Option<&dyn CompletionProvider>,
1016 cx: &mut ViewContext<Editor>,
1017 ) {
1018 self.selected_item = 0;
1019 self.scroll_handle
1020 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1021 self.attempt_resolve_selected_completion_documentation(provider, cx);
1022 cx.notify();
1023 }
1024
1025 fn select_prev(
1026 &mut self,
1027 provider: Option<&dyn CompletionProvider>,
1028 cx: &mut ViewContext<Editor>,
1029 ) {
1030 if self.selected_item > 0 {
1031 self.selected_item -= 1;
1032 } else {
1033 self.selected_item = self.matches.len() - 1;
1034 }
1035 self.scroll_handle
1036 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1037 self.attempt_resolve_selected_completion_documentation(provider, cx);
1038 cx.notify();
1039 }
1040
1041 fn select_next(
1042 &mut self,
1043 provider: Option<&dyn CompletionProvider>,
1044 cx: &mut ViewContext<Editor>,
1045 ) {
1046 if self.selected_item + 1 < self.matches.len() {
1047 self.selected_item += 1;
1048 } else {
1049 self.selected_item = 0;
1050 }
1051 self.scroll_handle
1052 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1053 self.attempt_resolve_selected_completion_documentation(provider, cx);
1054 cx.notify();
1055 }
1056
1057 fn select_last(
1058 &mut self,
1059 provider: Option<&dyn CompletionProvider>,
1060 cx: &mut ViewContext<Editor>,
1061 ) {
1062 self.selected_item = self.matches.len() - 1;
1063 self.scroll_handle
1064 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1065 self.attempt_resolve_selected_completion_documentation(provider, cx);
1066 cx.notify();
1067 }
1068
1069 fn pre_resolve_completion_documentation(
1070 buffer: Model<Buffer>,
1071 completions: Arc<RwLock<Box<[Completion]>>>,
1072 matches: Arc<[StringMatch]>,
1073 editor: &Editor,
1074 cx: &mut ViewContext<Editor>,
1075 ) -> Task<()> {
1076 let settings = EditorSettings::get_global(cx);
1077 if !settings.show_completion_documentation {
1078 return Task::ready(());
1079 }
1080
1081 let Some(provider) = editor.completion_provider.as_ref() else {
1082 return Task::ready(());
1083 };
1084
1085 let resolve_task = provider.resolve_completions(
1086 buffer,
1087 matches.iter().map(|m| m.candidate_id).collect(),
1088 completions.clone(),
1089 cx,
1090 );
1091
1092 cx.spawn(move |this, mut cx| async move {
1093 if let Some(true) = resolve_task.await.log_err() {
1094 this.update(&mut cx, |_, cx| cx.notify()).ok();
1095 }
1096 })
1097 }
1098
1099 fn attempt_resolve_selected_completion_documentation(
1100 &mut self,
1101 provider: Option<&dyn CompletionProvider>,
1102 cx: &mut ViewContext<Editor>,
1103 ) {
1104 let settings = EditorSettings::get_global(cx);
1105 if !settings.show_completion_documentation {
1106 return;
1107 }
1108
1109 let completion_index = self.matches[self.selected_item].candidate_id;
1110 let Some(provider) = provider else {
1111 return;
1112 };
1113
1114 let resolve_task = provider.resolve_completions(
1115 self.buffer.clone(),
1116 vec![completion_index],
1117 self.completions.clone(),
1118 cx,
1119 );
1120
1121 let delay_ms =
1122 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1123 let delay = Duration::from_millis(delay_ms);
1124
1125 self.selected_completion_documentation_resolve_debounce
1126 .lock()
1127 .fire_new(delay, cx, |_, cx| {
1128 cx.spawn(move |this, mut cx| async move {
1129 if let Some(true) = resolve_task.await.log_err() {
1130 this.update(&mut cx, |_, cx| cx.notify()).ok();
1131 }
1132 })
1133 });
1134 }
1135
1136 fn visible(&self) -> bool {
1137 !self.matches.is_empty()
1138 }
1139
1140 fn render(
1141 &self,
1142 style: &EditorStyle,
1143 max_height: Pixels,
1144 workspace: Option<WeakView<Workspace>>,
1145 cx: &mut ViewContext<Editor>,
1146 ) -> AnyElement {
1147 let settings = EditorSettings::get_global(cx);
1148 let show_completion_documentation = settings.show_completion_documentation;
1149
1150 let widest_completion_ix = self
1151 .matches
1152 .iter()
1153 .enumerate()
1154 .max_by_key(|(_, mat)| {
1155 let completions = self.completions.read();
1156 let completion = &completions[mat.candidate_id];
1157 let documentation = &completion.documentation;
1158
1159 let mut len = completion.label.text.chars().count();
1160 if let Some(Documentation::SingleLine(text)) = documentation {
1161 if show_completion_documentation {
1162 len += text.chars().count();
1163 }
1164 }
1165
1166 len
1167 })
1168 .map(|(ix, _)| ix);
1169
1170 let completions = self.completions.clone();
1171 let matches = self.matches.clone();
1172 let selected_item = self.selected_item;
1173 let style = style.clone();
1174
1175 let multiline_docs = if show_completion_documentation {
1176 let mat = &self.matches[selected_item];
1177 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1178 Some(Documentation::MultiLinePlainText(text)) => {
1179 Some(div().child(SharedString::from(text.clone())))
1180 }
1181 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1182 Some(div().child(render_parsed_markdown(
1183 "completions_markdown",
1184 parsed,
1185 &style,
1186 workspace,
1187 cx,
1188 )))
1189 }
1190 _ => None,
1191 };
1192 multiline_docs.map(|div| {
1193 div.id("multiline_docs")
1194 .max_h(max_height)
1195 .flex_1()
1196 .px_1p5()
1197 .py_1()
1198 .min_w(px(260.))
1199 .max_w(px(640.))
1200 .w(px(500.))
1201 .overflow_y_scroll()
1202 .occlude()
1203 })
1204 } else {
1205 None
1206 };
1207
1208 let list = uniform_list(
1209 cx.view().clone(),
1210 "completions",
1211 matches.len(),
1212 move |_editor, range, cx| {
1213 let start_ix = range.start;
1214 let completions_guard = completions.read();
1215
1216 matches[range]
1217 .iter()
1218 .enumerate()
1219 .map(|(ix, mat)| {
1220 let item_ix = start_ix + ix;
1221 let candidate_id = mat.candidate_id;
1222 let completion = &completions_guard[candidate_id];
1223
1224 let documentation = if show_completion_documentation {
1225 &completion.documentation
1226 } else {
1227 &None
1228 };
1229
1230 let highlights = gpui::combine_highlights(
1231 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1232 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1233 |(range, mut highlight)| {
1234 // Ignore font weight for syntax highlighting, as we'll use it
1235 // for fuzzy matches.
1236 highlight.font_weight = None;
1237
1238 if completion.lsp_completion.deprecated.unwrap_or(false) {
1239 highlight.strikethrough = Some(StrikethroughStyle {
1240 thickness: 1.0.into(),
1241 ..Default::default()
1242 });
1243 highlight.color = Some(cx.theme().colors().text_muted);
1244 }
1245
1246 (range, highlight)
1247 },
1248 ),
1249 );
1250 let completion_label = StyledText::new(completion.label.text.clone())
1251 .with_highlights(&style.text, highlights);
1252 let documentation_label =
1253 if let Some(Documentation::SingleLine(text)) = documentation {
1254 if text.trim().is_empty() {
1255 None
1256 } else {
1257 Some(
1258 Label::new(text.clone())
1259 .ml_4()
1260 .size(LabelSize::Small)
1261 .color(Color::Muted),
1262 )
1263 }
1264 } else {
1265 None
1266 };
1267
1268 let color_swatch = completion
1269 .color()
1270 .map(|color| div().size_4().bg(color).rounded_sm());
1271
1272 div().min_w(px(220.)).max_w(px(540.)).child(
1273 ListItem::new(mat.candidate_id)
1274 .inset(true)
1275 .selected(item_ix == selected_item)
1276 .on_click(cx.listener(move |editor, _event, cx| {
1277 cx.stop_propagation();
1278 if let Some(task) = editor.confirm_completion(
1279 &ConfirmCompletion {
1280 item_ix: Some(item_ix),
1281 },
1282 cx,
1283 ) {
1284 task.detach_and_log_err(cx)
1285 }
1286 }))
1287 .start_slot::<Div>(color_swatch)
1288 .child(h_flex().overflow_hidden().child(completion_label))
1289 .end_slot::<Label>(documentation_label),
1290 )
1291 })
1292 .collect()
1293 },
1294 )
1295 .occlude()
1296 .max_h(max_height)
1297 .track_scroll(self.scroll_handle.clone())
1298 .with_width_from_item(widest_completion_ix)
1299 .with_sizing_behavior(ListSizingBehavior::Infer);
1300
1301 Popover::new()
1302 .child(list)
1303 .when_some(multiline_docs, |popover, multiline_docs| {
1304 popover.aside(multiline_docs)
1305 })
1306 .into_any_element()
1307 }
1308
1309 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1310 let mut matches = if let Some(query) = query {
1311 fuzzy::match_strings(
1312 &self.match_candidates,
1313 query,
1314 query.chars().any(|c| c.is_uppercase()),
1315 100,
1316 &Default::default(),
1317 executor,
1318 )
1319 .await
1320 } else {
1321 self.match_candidates
1322 .iter()
1323 .enumerate()
1324 .map(|(candidate_id, candidate)| StringMatch {
1325 candidate_id,
1326 score: Default::default(),
1327 positions: Default::default(),
1328 string: candidate.string.clone(),
1329 })
1330 .collect()
1331 };
1332
1333 // Remove all candidates where the query's start does not match the start of any word in the candidate
1334 if let Some(query) = query {
1335 if let Some(query_start) = query.chars().next() {
1336 matches.retain(|string_match| {
1337 split_words(&string_match.string).any(|word| {
1338 // Check that the first codepoint of the word as lowercase matches the first
1339 // codepoint of the query as lowercase
1340 word.chars()
1341 .flat_map(|codepoint| codepoint.to_lowercase())
1342 .zip(query_start.to_lowercase())
1343 .all(|(word_cp, query_cp)| word_cp == query_cp)
1344 })
1345 });
1346 }
1347 }
1348
1349 let completions = self.completions.read();
1350 if self.sort_completions {
1351 matches.sort_unstable_by_key(|mat| {
1352 // We do want to strike a balance here between what the language server tells us
1353 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1354 // `Creat` and there is a local variable called `CreateComponent`).
1355 // So what we do is: we bucket all matches into two buckets
1356 // - Strong matches
1357 // - Weak matches
1358 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1359 // and the Weak matches are the rest.
1360 //
1361 // For the strong matches, we sort by our fuzzy-finder score first and for the weak
1362 // matches, we prefer language-server sort_text first.
1363 //
1364 // The thinking behind that: we want to show strong matches first in order of relevance(fuzzy score).
1365 // Rest of the matches(weak) can be sorted as language-server expects.
1366
1367 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1368 enum MatchScore<'a> {
1369 Strong {
1370 score: Reverse<OrderedFloat<f64>>,
1371 sort_text: Option<&'a str>,
1372 sort_key: (usize, &'a str),
1373 },
1374 Weak {
1375 sort_text: Option<&'a str>,
1376 score: Reverse<OrderedFloat<f64>>,
1377 sort_key: (usize, &'a str),
1378 },
1379 }
1380
1381 let completion = &completions[mat.candidate_id];
1382 let sort_key = completion.sort_key();
1383 let sort_text = completion.lsp_completion.sort_text.as_deref();
1384 let score = Reverse(OrderedFloat(mat.score));
1385
1386 if mat.score >= 0.2 {
1387 MatchScore::Strong {
1388 score,
1389 sort_text,
1390 sort_key,
1391 }
1392 } else {
1393 MatchScore::Weak {
1394 sort_text,
1395 score,
1396 sort_key,
1397 }
1398 }
1399 });
1400 }
1401
1402 for mat in &mut matches {
1403 let completion = &completions[mat.candidate_id];
1404 mat.string.clone_from(&completion.label.text);
1405 for position in &mut mat.positions {
1406 *position += completion.label.filter_range.start;
1407 }
1408 }
1409 drop(completions);
1410
1411 self.matches = matches.into();
1412 self.selected_item = 0;
1413 }
1414}
1415
1416struct AvailableCodeAction {
1417 excerpt_id: ExcerptId,
1418 action: CodeAction,
1419 provider: Arc<dyn CodeActionProvider>,
1420}
1421
1422#[derive(Clone)]
1423struct CodeActionContents {
1424 tasks: Option<Arc<ResolvedTasks>>,
1425 actions: Option<Arc<[AvailableCodeAction]>>,
1426}
1427
1428impl CodeActionContents {
1429 fn len(&self) -> usize {
1430 match (&self.tasks, &self.actions) {
1431 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1432 (Some(tasks), None) => tasks.templates.len(),
1433 (None, Some(actions)) => actions.len(),
1434 (None, None) => 0,
1435 }
1436 }
1437
1438 fn is_empty(&self) -> bool {
1439 match (&self.tasks, &self.actions) {
1440 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1441 (Some(tasks), None) => tasks.templates.is_empty(),
1442 (None, Some(actions)) => actions.is_empty(),
1443 (None, None) => true,
1444 }
1445 }
1446
1447 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1448 self.tasks
1449 .iter()
1450 .flat_map(|tasks| {
1451 tasks
1452 .templates
1453 .iter()
1454 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1455 })
1456 .chain(self.actions.iter().flat_map(|actions| {
1457 actions.iter().map(|available| CodeActionsItem::CodeAction {
1458 excerpt_id: available.excerpt_id,
1459 action: available.action.clone(),
1460 provider: available.provider.clone(),
1461 })
1462 }))
1463 }
1464 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1465 match (&self.tasks, &self.actions) {
1466 (Some(tasks), Some(actions)) => {
1467 if index < tasks.templates.len() {
1468 tasks
1469 .templates
1470 .get(index)
1471 .cloned()
1472 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1473 } else {
1474 actions.get(index - tasks.templates.len()).map(|available| {
1475 CodeActionsItem::CodeAction {
1476 excerpt_id: available.excerpt_id,
1477 action: available.action.clone(),
1478 provider: available.provider.clone(),
1479 }
1480 })
1481 }
1482 }
1483 (Some(tasks), None) => tasks
1484 .templates
1485 .get(index)
1486 .cloned()
1487 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1488 (None, Some(actions)) => {
1489 actions
1490 .get(index)
1491 .map(|available| CodeActionsItem::CodeAction {
1492 excerpt_id: available.excerpt_id,
1493 action: available.action.clone(),
1494 provider: available.provider.clone(),
1495 })
1496 }
1497 (None, None) => None,
1498 }
1499 }
1500}
1501
1502#[allow(clippy::large_enum_variant)]
1503#[derive(Clone)]
1504enum CodeActionsItem {
1505 Task(TaskSourceKind, ResolvedTask),
1506 CodeAction {
1507 excerpt_id: ExcerptId,
1508 action: CodeAction,
1509 provider: Arc<dyn CodeActionProvider>,
1510 },
1511}
1512
1513impl CodeActionsItem {
1514 fn as_task(&self) -> Option<&ResolvedTask> {
1515 let Self::Task(_, task) = self else {
1516 return None;
1517 };
1518 Some(task)
1519 }
1520 fn as_code_action(&self) -> Option<&CodeAction> {
1521 let Self::CodeAction { action, .. } = self else {
1522 return None;
1523 };
1524 Some(action)
1525 }
1526 fn label(&self) -> String {
1527 match self {
1528 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1529 Self::Task(_, task) => task.resolved_label.clone(),
1530 }
1531 }
1532}
1533
1534struct CodeActionsMenu {
1535 actions: CodeActionContents,
1536 buffer: Model<Buffer>,
1537 selected_item: usize,
1538 scroll_handle: UniformListScrollHandle,
1539 deployed_from_indicator: Option<DisplayRow>,
1540}
1541
1542impl CodeActionsMenu {
1543 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1544 self.selected_item = 0;
1545 self.scroll_handle
1546 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1547 cx.notify()
1548 }
1549
1550 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1551 if self.selected_item > 0 {
1552 self.selected_item -= 1;
1553 } else {
1554 self.selected_item = self.actions.len() - 1;
1555 }
1556 self.scroll_handle
1557 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1558 cx.notify();
1559 }
1560
1561 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1562 if self.selected_item + 1 < self.actions.len() {
1563 self.selected_item += 1;
1564 } else {
1565 self.selected_item = 0;
1566 }
1567 self.scroll_handle
1568 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1569 cx.notify();
1570 }
1571
1572 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1573 self.selected_item = self.actions.len() - 1;
1574 self.scroll_handle
1575 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1576 cx.notify()
1577 }
1578
1579 fn visible(&self) -> bool {
1580 !self.actions.is_empty()
1581 }
1582
1583 fn render(
1584 &self,
1585 cursor_position: DisplayPoint,
1586 _style: &EditorStyle,
1587 max_height: Pixels,
1588 cx: &mut ViewContext<Editor>,
1589 ) -> (ContextMenuOrigin, AnyElement) {
1590 let actions = self.actions.clone();
1591 let selected_item = self.selected_item;
1592 let element = uniform_list(
1593 cx.view().clone(),
1594 "code_actions_menu",
1595 self.actions.len(),
1596 move |_this, range, cx| {
1597 actions
1598 .iter()
1599 .skip(range.start)
1600 .take(range.end - range.start)
1601 .enumerate()
1602 .map(|(ix, action)| {
1603 let item_ix = range.start + ix;
1604 let selected = selected_item == item_ix;
1605 let colors = cx.theme().colors();
1606 div()
1607 .px_1()
1608 .rounded_md()
1609 .text_color(colors.text)
1610 .when(selected, |style| {
1611 style
1612 .bg(colors.element_active)
1613 .text_color(colors.text_accent)
1614 })
1615 .hover(|style| {
1616 style
1617 .bg(colors.element_hover)
1618 .text_color(colors.text_accent)
1619 })
1620 .whitespace_nowrap()
1621 .when_some(action.as_code_action(), |this, action| {
1622 this.on_mouse_down(
1623 MouseButton::Left,
1624 cx.listener(move |editor, _, cx| {
1625 cx.stop_propagation();
1626 if let Some(task) = editor.confirm_code_action(
1627 &ConfirmCodeAction {
1628 item_ix: Some(item_ix),
1629 },
1630 cx,
1631 ) {
1632 task.detach_and_log_err(cx)
1633 }
1634 }),
1635 )
1636 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1637 .child(SharedString::from(action.lsp_action.title.clone()))
1638 })
1639 .when_some(action.as_task(), |this, task| {
1640 this.on_mouse_down(
1641 MouseButton::Left,
1642 cx.listener(move |editor, _, cx| {
1643 cx.stop_propagation();
1644 if let Some(task) = editor.confirm_code_action(
1645 &ConfirmCodeAction {
1646 item_ix: Some(item_ix),
1647 },
1648 cx,
1649 ) {
1650 task.detach_and_log_err(cx)
1651 }
1652 }),
1653 )
1654 .child(SharedString::from(task.resolved_label.clone()))
1655 })
1656 })
1657 .collect()
1658 },
1659 )
1660 .elevation_1(cx)
1661 .p_1()
1662 .max_h(max_height)
1663 .occlude()
1664 .track_scroll(self.scroll_handle.clone())
1665 .with_width_from_item(
1666 self.actions
1667 .iter()
1668 .enumerate()
1669 .max_by_key(|(_, action)| match action {
1670 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1671 CodeActionsItem::CodeAction { action, .. } => {
1672 action.lsp_action.title.chars().count()
1673 }
1674 })
1675 .map(|(ix, _)| ix),
1676 )
1677 .with_sizing_behavior(ListSizingBehavior::Infer)
1678 .into_any_element();
1679
1680 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1681 ContextMenuOrigin::GutterIndicator(row)
1682 } else {
1683 ContextMenuOrigin::EditorPoint(cursor_position)
1684 };
1685
1686 (cursor_position, element)
1687 }
1688}
1689
1690#[derive(Debug)]
1691struct ActiveDiagnosticGroup {
1692 primary_range: Range<Anchor>,
1693 primary_message: String,
1694 group_id: usize,
1695 blocks: HashMap<CustomBlockId, Diagnostic>,
1696 is_valid: bool,
1697}
1698
1699#[derive(Serialize, Deserialize, Clone, Debug)]
1700pub struct ClipboardSelection {
1701 pub len: usize,
1702 pub is_entire_line: bool,
1703 pub first_line_indent: u32,
1704}
1705
1706#[derive(Debug)]
1707pub(crate) struct NavigationData {
1708 cursor_anchor: Anchor,
1709 cursor_position: Point,
1710 scroll_anchor: ScrollAnchor,
1711 scroll_top_row: u32,
1712}
1713
1714#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1715pub enum GotoDefinitionKind {
1716 Symbol,
1717 Declaration,
1718 Type,
1719 Implementation,
1720}
1721
1722#[derive(Debug, Clone)]
1723enum InlayHintRefreshReason {
1724 Toggle(bool),
1725 SettingsChange(InlayHintSettings),
1726 NewLinesShown,
1727 BufferEdited(HashSet<Arc<Language>>),
1728 RefreshRequested,
1729 ExcerptsRemoved(Vec<ExcerptId>),
1730}
1731
1732impl InlayHintRefreshReason {
1733 fn description(&self) -> &'static str {
1734 match self {
1735 Self::Toggle(_) => "toggle",
1736 Self::SettingsChange(_) => "settings change",
1737 Self::NewLinesShown => "new lines shown",
1738 Self::BufferEdited(_) => "buffer edited",
1739 Self::RefreshRequested => "refresh requested",
1740 Self::ExcerptsRemoved(_) => "excerpts removed",
1741 }
1742 }
1743}
1744
1745pub(crate) struct FocusedBlock {
1746 id: BlockId,
1747 focus_handle: WeakFocusHandle,
1748}
1749
1750impl Editor {
1751 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1752 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1753 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1754 Self::new(
1755 EditorMode::SingleLine { auto_width: false },
1756 buffer,
1757 None,
1758 false,
1759 cx,
1760 )
1761 }
1762
1763 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1764 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1765 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1766 Self::new(EditorMode::Full, buffer, None, false, cx)
1767 }
1768
1769 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1770 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1771 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1772 Self::new(
1773 EditorMode::SingleLine { auto_width: true },
1774 buffer,
1775 None,
1776 false,
1777 cx,
1778 )
1779 }
1780
1781 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1782 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1783 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1784 Self::new(
1785 EditorMode::AutoHeight { max_lines },
1786 buffer,
1787 None,
1788 false,
1789 cx,
1790 )
1791 }
1792
1793 pub fn for_buffer(
1794 buffer: Model<Buffer>,
1795 project: Option<Model<Project>>,
1796 cx: &mut ViewContext<Self>,
1797 ) -> Self {
1798 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1799 Self::new(EditorMode::Full, buffer, project, false, cx)
1800 }
1801
1802 pub fn for_multibuffer(
1803 buffer: Model<MultiBuffer>,
1804 project: Option<Model<Project>>,
1805 show_excerpt_controls: bool,
1806 cx: &mut ViewContext<Self>,
1807 ) -> Self {
1808 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1809 }
1810
1811 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1812 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1813 let mut clone = Self::new(
1814 self.mode,
1815 self.buffer.clone(),
1816 self.project.clone(),
1817 show_excerpt_controls,
1818 cx,
1819 );
1820 self.display_map.update(cx, |display_map, cx| {
1821 let snapshot = display_map.snapshot(cx);
1822 clone.display_map.update(cx, |display_map, cx| {
1823 display_map.set_state(&snapshot, cx);
1824 });
1825 });
1826 clone.selections.clone_state(&self.selections);
1827 clone.scroll_manager.clone_state(&self.scroll_manager);
1828 clone.searchable = self.searchable;
1829 clone
1830 }
1831
1832 pub fn new(
1833 mode: EditorMode,
1834 buffer: Model<MultiBuffer>,
1835 project: Option<Model<Project>>,
1836 show_excerpt_controls: bool,
1837 cx: &mut ViewContext<Self>,
1838 ) -> Self {
1839 let style = cx.text_style();
1840 let font_size = style.font_size.to_pixels(cx.rem_size());
1841 let editor = cx.view().downgrade();
1842 let fold_placeholder = FoldPlaceholder {
1843 constrain_width: true,
1844 render: Arc::new(move |fold_id, fold_range, cx| {
1845 let editor = editor.clone();
1846 div()
1847 .id(fold_id)
1848 .bg(cx.theme().colors().ghost_element_background)
1849 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1850 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1851 .rounded_sm()
1852 .size_full()
1853 .cursor_pointer()
1854 .child("⋯")
1855 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1856 .on_click(move |_, cx| {
1857 editor
1858 .update(cx, |editor, cx| {
1859 editor.unfold_ranges(
1860 &[fold_range.start..fold_range.end],
1861 true,
1862 false,
1863 cx,
1864 );
1865 cx.stop_propagation();
1866 })
1867 .ok();
1868 })
1869 .into_any()
1870 }),
1871 merge_adjacent: true,
1872 ..Default::default()
1873 };
1874 let display_map = cx.new_model(|cx| {
1875 DisplayMap::new(
1876 buffer.clone(),
1877 style.font(),
1878 font_size,
1879 None,
1880 show_excerpt_controls,
1881 FILE_HEADER_HEIGHT,
1882 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1883 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1884 fold_placeholder,
1885 cx,
1886 )
1887 });
1888
1889 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1890
1891 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1892
1893 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1894 .then(|| language_settings::SoftWrap::None);
1895
1896 let mut project_subscriptions = Vec::new();
1897 if mode == EditorMode::Full {
1898 if let Some(project) = project.as_ref() {
1899 if buffer.read(cx).is_singleton() {
1900 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1901 cx.emit(EditorEvent::TitleChanged);
1902 }));
1903 }
1904 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1905 if let project::Event::RefreshInlayHints = event {
1906 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1907 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1908 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1909 let focus_handle = editor.focus_handle(cx);
1910 if focus_handle.is_focused(cx) {
1911 let snapshot = buffer.read(cx).snapshot();
1912 for (range, snippet) in snippet_edits {
1913 let editor_range =
1914 language::range_from_lsp(*range).to_offset(&snapshot);
1915 editor
1916 .insert_snippet(&[editor_range], snippet.clone(), cx)
1917 .ok();
1918 }
1919 }
1920 }
1921 }
1922 }));
1923 if let Some(task_inventory) = project
1924 .read(cx)
1925 .task_store()
1926 .read(cx)
1927 .task_inventory()
1928 .cloned()
1929 {
1930 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1931 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1932 }));
1933 }
1934 }
1935 }
1936
1937 let inlay_hint_settings = inlay_hint_settings(
1938 selections.newest_anchor().head(),
1939 &buffer.read(cx).snapshot(cx),
1940 cx,
1941 );
1942 let focus_handle = cx.focus_handle();
1943 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1944 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1945 .detach();
1946 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1947 .detach();
1948 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1949
1950 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1951 Some(false)
1952 } else {
1953 None
1954 };
1955
1956 let mut code_action_providers = Vec::new();
1957 if let Some(project) = project.clone() {
1958 code_action_providers.push(Arc::new(project) as Arc<_>);
1959 }
1960
1961 let mut this = Self {
1962 focus_handle,
1963 show_cursor_when_unfocused: false,
1964 last_focused_descendant: None,
1965 buffer: buffer.clone(),
1966 display_map: display_map.clone(),
1967 selections,
1968 scroll_manager: ScrollManager::new(cx),
1969 columnar_selection_tail: None,
1970 add_selections_state: None,
1971 select_next_state: None,
1972 select_prev_state: None,
1973 selection_history: Default::default(),
1974 autoclose_regions: Default::default(),
1975 snippet_stack: Default::default(),
1976 select_larger_syntax_node_stack: Vec::new(),
1977 ime_transaction: Default::default(),
1978 active_diagnostics: None,
1979 soft_wrap_mode_override,
1980 completion_provider: project.clone().map(|project| Box::new(project) as _),
1981 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1982 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1983 project,
1984 blink_manager: blink_manager.clone(),
1985 show_local_selections: true,
1986 mode,
1987 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1988 show_gutter: mode == EditorMode::Full,
1989 show_line_numbers: None,
1990 use_relative_line_numbers: None,
1991 show_git_diff_gutter: None,
1992 show_code_actions: None,
1993 show_runnables: None,
1994 show_wrap_guides: None,
1995 show_indent_guides,
1996 placeholder_text: None,
1997 highlight_order: 0,
1998 highlighted_rows: HashMap::default(),
1999 background_highlights: Default::default(),
2000 gutter_highlights: TreeMap::default(),
2001 scrollbar_marker_state: ScrollbarMarkerState::default(),
2002 active_indent_guides_state: ActiveIndentGuidesState::default(),
2003 nav_history: None,
2004 context_menu: RwLock::new(None),
2005 mouse_context_menu: None,
2006 hunk_controls_menu_handle: PopoverMenuHandle::default(),
2007 completion_tasks: Default::default(),
2008 signature_help_state: SignatureHelpState::default(),
2009 auto_signature_help: None,
2010 find_all_references_task_sources: Vec::new(),
2011 next_completion_id: 0,
2012 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
2013 next_inlay_id: 0,
2014 code_action_providers,
2015 available_code_actions: Default::default(),
2016 code_actions_task: Default::default(),
2017 document_highlights_task: Default::default(),
2018 linked_editing_range_task: Default::default(),
2019 pending_rename: Default::default(),
2020 searchable: true,
2021 cursor_shape: EditorSettings::get_global(cx)
2022 .cursor_shape
2023 .unwrap_or_default(),
2024 current_line_highlight: None,
2025 autoindent_mode: Some(AutoindentMode::EachLine),
2026 collapse_matches: false,
2027 workspace: None,
2028 input_enabled: true,
2029 use_modal_editing: mode == EditorMode::Full,
2030 read_only: false,
2031 use_autoclose: true,
2032 use_auto_surround: true,
2033 auto_replace_emoji_shortcode: false,
2034 leader_peer_id: None,
2035 remote_id: None,
2036 hover_state: Default::default(),
2037 hovered_link_state: Default::default(),
2038 inline_completion_provider: None,
2039 active_inline_completion: None,
2040 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2041 expanded_hunks: ExpandedHunks::default(),
2042 gutter_hovered: false,
2043 pixel_position_of_newest_cursor: None,
2044 last_bounds: None,
2045 expect_bounds_change: None,
2046 gutter_dimensions: GutterDimensions::default(),
2047 style: None,
2048 show_cursor_names: false,
2049 hovered_cursors: Default::default(),
2050 next_editor_action_id: EditorActionId::default(),
2051 editor_actions: Rc::default(),
2052 show_inline_completions_override: None,
2053 enable_inline_completions: true,
2054 custom_context_menu: None,
2055 show_git_blame_gutter: false,
2056 show_git_blame_inline: false,
2057 show_selection_menu: None,
2058 show_git_blame_inline_delay_task: None,
2059 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2060 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2061 .session
2062 .restore_unsaved_buffers,
2063 blame: None,
2064 blame_subscription: None,
2065 tasks: Default::default(),
2066 _subscriptions: vec![
2067 cx.observe(&buffer, Self::on_buffer_changed),
2068 cx.subscribe(&buffer, Self::on_buffer_event),
2069 cx.observe(&display_map, Self::on_display_map_changed),
2070 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2071 cx.observe_global::<SettingsStore>(Self::settings_changed),
2072 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2073 cx.observe_window_activation(|editor, cx| {
2074 let active = cx.is_window_active();
2075 editor.blink_manager.update(cx, |blink_manager, cx| {
2076 if active {
2077 blink_manager.enable(cx);
2078 } else {
2079 blink_manager.disable(cx);
2080 }
2081 });
2082 }),
2083 ],
2084 tasks_update_task: None,
2085 linked_edit_ranges: Default::default(),
2086 previous_search_ranges: None,
2087 breadcrumb_header: None,
2088 focused_block: None,
2089 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2090 addons: HashMap::default(),
2091 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2092 text_style_refinement: None,
2093 };
2094 this.tasks_update_task = Some(this.refresh_runnables(cx));
2095 this._subscriptions.extend(project_subscriptions);
2096
2097 this.end_selection(cx);
2098 this.scroll_manager.show_scrollbar(cx);
2099
2100 if mode == EditorMode::Full {
2101 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2102 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2103
2104 if this.git_blame_inline_enabled {
2105 this.git_blame_inline_enabled = true;
2106 this.start_git_blame_inline(false, cx);
2107 }
2108 }
2109
2110 this.report_editor_event("open", None, cx);
2111 this
2112 }
2113
2114 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2115 self.mouse_context_menu
2116 .as_ref()
2117 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2118 }
2119
2120 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2121 let mut key_context = KeyContext::new_with_defaults();
2122 key_context.add("Editor");
2123 let mode = match self.mode {
2124 EditorMode::SingleLine { .. } => "single_line",
2125 EditorMode::AutoHeight { .. } => "auto_height",
2126 EditorMode::Full => "full",
2127 };
2128
2129 if EditorSettings::jupyter_enabled(cx) {
2130 key_context.add("jupyter");
2131 }
2132
2133 key_context.set("mode", mode);
2134 if self.pending_rename.is_some() {
2135 key_context.add("renaming");
2136 }
2137 if self.context_menu_visible() {
2138 match self.context_menu.read().as_ref() {
2139 Some(ContextMenu::Completions(_)) => {
2140 key_context.add("menu");
2141 key_context.add("showing_completions")
2142 }
2143 Some(ContextMenu::CodeActions(_)) => {
2144 key_context.add("menu");
2145 key_context.add("showing_code_actions")
2146 }
2147 None => {}
2148 }
2149 }
2150
2151 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2152 if !self.focus_handle(cx).contains_focused(cx)
2153 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2154 {
2155 for addon in self.addons.values() {
2156 addon.extend_key_context(&mut key_context, cx)
2157 }
2158 }
2159
2160 if let Some(extension) = self
2161 .buffer
2162 .read(cx)
2163 .as_singleton()
2164 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2165 {
2166 key_context.set("extension", extension.to_string());
2167 }
2168
2169 if self.has_active_inline_completion(cx) {
2170 key_context.add("copilot_suggestion");
2171 key_context.add("inline_completion");
2172 }
2173
2174 key_context
2175 }
2176
2177 pub fn new_file(
2178 workspace: &mut Workspace,
2179 _: &workspace::NewFile,
2180 cx: &mut ViewContext<Workspace>,
2181 ) {
2182 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2183 "Failed to create buffer",
2184 cx,
2185 |e, _| match e.error_code() {
2186 ErrorCode::RemoteUpgradeRequired => Some(format!(
2187 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2188 e.error_tag("required").unwrap_or("the latest version")
2189 )),
2190 _ => None,
2191 },
2192 );
2193 }
2194
2195 pub fn new_in_workspace(
2196 workspace: &mut Workspace,
2197 cx: &mut ViewContext<Workspace>,
2198 ) -> Task<Result<View<Editor>>> {
2199 let project = workspace.project().clone();
2200 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2201
2202 cx.spawn(|workspace, mut cx| async move {
2203 let buffer = create.await?;
2204 workspace.update(&mut cx, |workspace, cx| {
2205 let editor =
2206 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2207 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2208 editor
2209 })
2210 })
2211 }
2212
2213 fn new_file_vertical(
2214 workspace: &mut Workspace,
2215 _: &workspace::NewFileSplitVertical,
2216 cx: &mut ViewContext<Workspace>,
2217 ) {
2218 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2219 }
2220
2221 fn new_file_horizontal(
2222 workspace: &mut Workspace,
2223 _: &workspace::NewFileSplitHorizontal,
2224 cx: &mut ViewContext<Workspace>,
2225 ) {
2226 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2227 }
2228
2229 fn new_file_in_direction(
2230 workspace: &mut Workspace,
2231 direction: SplitDirection,
2232 cx: &mut ViewContext<Workspace>,
2233 ) {
2234 let project = workspace.project().clone();
2235 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2236
2237 cx.spawn(|workspace, mut cx| async move {
2238 let buffer = create.await?;
2239 workspace.update(&mut cx, move |workspace, cx| {
2240 workspace.split_item(
2241 direction,
2242 Box::new(
2243 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2244 ),
2245 cx,
2246 )
2247 })?;
2248 anyhow::Ok(())
2249 })
2250 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2251 ErrorCode::RemoteUpgradeRequired => Some(format!(
2252 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2253 e.error_tag("required").unwrap_or("the latest version")
2254 )),
2255 _ => None,
2256 });
2257 }
2258
2259 pub fn leader_peer_id(&self) -> Option<PeerId> {
2260 self.leader_peer_id
2261 }
2262
2263 pub fn buffer(&self) -> &Model<MultiBuffer> {
2264 &self.buffer
2265 }
2266
2267 pub fn workspace(&self) -> Option<View<Workspace>> {
2268 self.workspace.as_ref()?.0.upgrade()
2269 }
2270
2271 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2272 self.buffer().read(cx).title(cx)
2273 }
2274
2275 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2276 let git_blame_gutter_max_author_length = self
2277 .render_git_blame_gutter(cx)
2278 .then(|| {
2279 if let Some(blame) = self.blame.as_ref() {
2280 let max_author_length =
2281 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2282 Some(max_author_length)
2283 } else {
2284 None
2285 }
2286 })
2287 .flatten();
2288
2289 EditorSnapshot {
2290 mode: self.mode,
2291 show_gutter: self.show_gutter,
2292 show_line_numbers: self.show_line_numbers,
2293 show_git_diff_gutter: self.show_git_diff_gutter,
2294 show_code_actions: self.show_code_actions,
2295 show_runnables: self.show_runnables,
2296 git_blame_gutter_max_author_length,
2297 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2298 scroll_anchor: self.scroll_manager.anchor(),
2299 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2300 placeholder_text: self.placeholder_text.clone(),
2301 is_focused: self.focus_handle.is_focused(cx),
2302 current_line_highlight: self
2303 .current_line_highlight
2304 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2305 gutter_hovered: self.gutter_hovered,
2306 }
2307 }
2308
2309 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2310 self.buffer.read(cx).language_at(point, cx)
2311 }
2312
2313 pub fn file_at<T: ToOffset>(
2314 &self,
2315 point: T,
2316 cx: &AppContext,
2317 ) -> Option<Arc<dyn language::File>> {
2318 self.buffer.read(cx).read(cx).file_at(point).cloned()
2319 }
2320
2321 pub fn active_excerpt(
2322 &self,
2323 cx: &AppContext,
2324 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2325 self.buffer
2326 .read(cx)
2327 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2328 }
2329
2330 pub fn mode(&self) -> EditorMode {
2331 self.mode
2332 }
2333
2334 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2335 self.collaboration_hub.as_deref()
2336 }
2337
2338 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2339 self.collaboration_hub = Some(hub);
2340 }
2341
2342 pub fn set_custom_context_menu(
2343 &mut self,
2344 f: impl 'static
2345 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2346 ) {
2347 self.custom_context_menu = Some(Box::new(f))
2348 }
2349
2350 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2351 self.completion_provider = provider;
2352 }
2353
2354 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2355 self.semantics_provider.clone()
2356 }
2357
2358 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2359 self.semantics_provider = provider;
2360 }
2361
2362 pub fn set_inline_completion_provider<T>(
2363 &mut self,
2364 provider: Option<Model<T>>,
2365 cx: &mut ViewContext<Self>,
2366 ) where
2367 T: InlineCompletionProvider,
2368 {
2369 self.inline_completion_provider =
2370 provider.map(|provider| RegisteredInlineCompletionProvider {
2371 _subscription: cx.observe(&provider, |this, _, cx| {
2372 if this.focus_handle.is_focused(cx) {
2373 this.update_visible_inline_completion(cx);
2374 }
2375 }),
2376 provider: Arc::new(provider),
2377 });
2378 self.refresh_inline_completion(false, false, cx);
2379 }
2380
2381 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2382 self.placeholder_text.as_deref()
2383 }
2384
2385 pub fn set_placeholder_text(
2386 &mut self,
2387 placeholder_text: impl Into<Arc<str>>,
2388 cx: &mut ViewContext<Self>,
2389 ) {
2390 let placeholder_text = Some(placeholder_text.into());
2391 if self.placeholder_text != placeholder_text {
2392 self.placeholder_text = placeholder_text;
2393 cx.notify();
2394 }
2395 }
2396
2397 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2398 self.cursor_shape = cursor_shape;
2399
2400 // Disrupt blink for immediate user feedback that the cursor shape has changed
2401 self.blink_manager.update(cx, BlinkManager::show_cursor);
2402
2403 cx.notify();
2404 }
2405
2406 pub fn set_current_line_highlight(
2407 &mut self,
2408 current_line_highlight: Option<CurrentLineHighlight>,
2409 ) {
2410 self.current_line_highlight = current_line_highlight;
2411 }
2412
2413 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2414 self.collapse_matches = collapse_matches;
2415 }
2416
2417 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2418 if self.collapse_matches {
2419 return range.start..range.start;
2420 }
2421 range.clone()
2422 }
2423
2424 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2425 if self.display_map.read(cx).clip_at_line_ends != clip {
2426 self.display_map
2427 .update(cx, |map, _| map.clip_at_line_ends = clip);
2428 }
2429 }
2430
2431 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2432 self.input_enabled = input_enabled;
2433 }
2434
2435 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2436 self.enable_inline_completions = enabled;
2437 }
2438
2439 pub fn set_autoindent(&mut self, autoindent: bool) {
2440 if autoindent {
2441 self.autoindent_mode = Some(AutoindentMode::EachLine);
2442 } else {
2443 self.autoindent_mode = None;
2444 }
2445 }
2446
2447 pub fn read_only(&self, cx: &AppContext) -> bool {
2448 self.read_only || self.buffer.read(cx).read_only()
2449 }
2450
2451 pub fn set_read_only(&mut self, read_only: bool) {
2452 self.read_only = read_only;
2453 }
2454
2455 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2456 self.use_autoclose = autoclose;
2457 }
2458
2459 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2460 self.use_auto_surround = auto_surround;
2461 }
2462
2463 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2464 self.auto_replace_emoji_shortcode = auto_replace;
2465 }
2466
2467 pub fn toggle_inline_completions(
2468 &mut self,
2469 _: &ToggleInlineCompletions,
2470 cx: &mut ViewContext<Self>,
2471 ) {
2472 if self.show_inline_completions_override.is_some() {
2473 self.set_show_inline_completions(None, cx);
2474 } else {
2475 let cursor = self.selections.newest_anchor().head();
2476 if let Some((buffer, cursor_buffer_position)) =
2477 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2478 {
2479 let show_inline_completions =
2480 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2481 self.set_show_inline_completions(Some(show_inline_completions), cx);
2482 }
2483 }
2484 }
2485
2486 pub fn set_show_inline_completions(
2487 &mut self,
2488 show_inline_completions: Option<bool>,
2489 cx: &mut ViewContext<Self>,
2490 ) {
2491 self.show_inline_completions_override = show_inline_completions;
2492 self.refresh_inline_completion(false, true, cx);
2493 }
2494
2495 fn should_show_inline_completions(
2496 &self,
2497 buffer: &Model<Buffer>,
2498 buffer_position: language::Anchor,
2499 cx: &AppContext,
2500 ) -> bool {
2501 if let Some(provider) = self.inline_completion_provider() {
2502 if let Some(show_inline_completions) = self.show_inline_completions_override {
2503 show_inline_completions
2504 } else {
2505 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2506 }
2507 } else {
2508 false
2509 }
2510 }
2511
2512 pub fn set_use_modal_editing(&mut self, to: bool) {
2513 self.use_modal_editing = to;
2514 }
2515
2516 pub fn use_modal_editing(&self) -> bool {
2517 self.use_modal_editing
2518 }
2519
2520 fn selections_did_change(
2521 &mut self,
2522 local: bool,
2523 old_cursor_position: &Anchor,
2524 show_completions: bool,
2525 cx: &mut ViewContext<Self>,
2526 ) {
2527 cx.invalidate_character_coordinates();
2528
2529 // Copy selections to primary selection buffer
2530 #[cfg(target_os = "linux")]
2531 if local {
2532 let selections = self.selections.all::<usize>(cx);
2533 let buffer_handle = self.buffer.read(cx).read(cx);
2534
2535 let mut text = String::new();
2536 for (index, selection) in selections.iter().enumerate() {
2537 let text_for_selection = buffer_handle
2538 .text_for_range(selection.start..selection.end)
2539 .collect::<String>();
2540
2541 text.push_str(&text_for_selection);
2542 if index != selections.len() - 1 {
2543 text.push('\n');
2544 }
2545 }
2546
2547 if !text.is_empty() {
2548 cx.write_to_primary(ClipboardItem::new_string(text));
2549 }
2550 }
2551
2552 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2553 self.buffer.update(cx, |buffer, cx| {
2554 buffer.set_active_selections(
2555 &self.selections.disjoint_anchors(),
2556 self.selections.line_mode,
2557 self.cursor_shape,
2558 cx,
2559 )
2560 });
2561 }
2562 let display_map = self
2563 .display_map
2564 .update(cx, |display_map, cx| display_map.snapshot(cx));
2565 let buffer = &display_map.buffer_snapshot;
2566 self.add_selections_state = None;
2567 self.select_next_state = None;
2568 self.select_prev_state = None;
2569 self.select_larger_syntax_node_stack.clear();
2570 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2571 self.snippet_stack
2572 .invalidate(&self.selections.disjoint_anchors(), buffer);
2573 self.take_rename(false, cx);
2574
2575 let new_cursor_position = self.selections.newest_anchor().head();
2576
2577 self.push_to_nav_history(
2578 *old_cursor_position,
2579 Some(new_cursor_position.to_point(buffer)),
2580 cx,
2581 );
2582
2583 if local {
2584 let new_cursor_position = self.selections.newest_anchor().head();
2585 let mut context_menu = self.context_menu.write();
2586 let completion_menu = match context_menu.as_ref() {
2587 Some(ContextMenu::Completions(menu)) => Some(menu),
2588
2589 _ => {
2590 *context_menu = None;
2591 None
2592 }
2593 };
2594
2595 if let Some(completion_menu) = completion_menu {
2596 let cursor_position = new_cursor_position.to_offset(buffer);
2597 let (word_range, kind) =
2598 buffer.surrounding_word(completion_menu.initial_position, true);
2599 if kind == Some(CharKind::Word)
2600 && word_range.to_inclusive().contains(&cursor_position)
2601 {
2602 let mut completion_menu = completion_menu.clone();
2603 drop(context_menu);
2604
2605 let query = Self::completion_query(buffer, cursor_position);
2606 cx.spawn(move |this, mut cx| async move {
2607 completion_menu
2608 .filter(query.as_deref(), cx.background_executor().clone())
2609 .await;
2610
2611 this.update(&mut cx, |this, cx| {
2612 let mut context_menu = this.context_menu.write();
2613 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2614 return;
2615 };
2616
2617 if menu.id > completion_menu.id {
2618 return;
2619 }
2620
2621 *context_menu = Some(ContextMenu::Completions(completion_menu));
2622 drop(context_menu);
2623 cx.notify();
2624 })
2625 })
2626 .detach();
2627
2628 if show_completions {
2629 self.show_completions(&ShowCompletions { trigger: None }, cx);
2630 }
2631 } else {
2632 drop(context_menu);
2633 self.hide_context_menu(cx);
2634 }
2635 } else {
2636 drop(context_menu);
2637 }
2638
2639 hide_hover(self, cx);
2640
2641 if old_cursor_position.to_display_point(&display_map).row()
2642 != new_cursor_position.to_display_point(&display_map).row()
2643 {
2644 self.available_code_actions.take();
2645 }
2646 self.refresh_code_actions(cx);
2647 self.refresh_document_highlights(cx);
2648 refresh_matching_bracket_highlights(self, cx);
2649 self.discard_inline_completion(false, cx);
2650 linked_editing_ranges::refresh_linked_ranges(self, cx);
2651 if self.git_blame_inline_enabled {
2652 self.start_inline_blame_timer(cx);
2653 }
2654 }
2655
2656 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2657 cx.emit(EditorEvent::SelectionsChanged { local });
2658
2659 if self.selections.disjoint_anchors().len() == 1 {
2660 cx.emit(SearchEvent::ActiveMatchChanged)
2661 }
2662 cx.notify();
2663 }
2664
2665 pub fn change_selections<R>(
2666 &mut self,
2667 autoscroll: Option<Autoscroll>,
2668 cx: &mut ViewContext<Self>,
2669 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2670 ) -> R {
2671 self.change_selections_inner(autoscroll, true, cx, change)
2672 }
2673
2674 pub fn change_selections_inner<R>(
2675 &mut self,
2676 autoscroll: Option<Autoscroll>,
2677 request_completions: bool,
2678 cx: &mut ViewContext<Self>,
2679 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2680 ) -> R {
2681 let old_cursor_position = self.selections.newest_anchor().head();
2682 self.push_to_selection_history();
2683
2684 let (changed, result) = self.selections.change_with(cx, change);
2685
2686 if changed {
2687 if let Some(autoscroll) = autoscroll {
2688 self.request_autoscroll(autoscroll, cx);
2689 }
2690 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2691
2692 if self.should_open_signature_help_automatically(
2693 &old_cursor_position,
2694 self.signature_help_state.backspace_pressed(),
2695 cx,
2696 ) {
2697 self.show_signature_help(&ShowSignatureHelp, cx);
2698 }
2699 self.signature_help_state.set_backspace_pressed(false);
2700 }
2701
2702 result
2703 }
2704
2705 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2706 where
2707 I: IntoIterator<Item = (Range<S>, T)>,
2708 S: ToOffset,
2709 T: Into<Arc<str>>,
2710 {
2711 if self.read_only(cx) {
2712 return;
2713 }
2714
2715 self.buffer
2716 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2717 }
2718
2719 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2720 where
2721 I: IntoIterator<Item = (Range<S>, T)>,
2722 S: ToOffset,
2723 T: Into<Arc<str>>,
2724 {
2725 if self.read_only(cx) {
2726 return;
2727 }
2728
2729 self.buffer.update(cx, |buffer, cx| {
2730 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2731 });
2732 }
2733
2734 pub fn edit_with_block_indent<I, S, T>(
2735 &mut self,
2736 edits: I,
2737 original_indent_columns: Vec<u32>,
2738 cx: &mut ViewContext<Self>,
2739 ) where
2740 I: IntoIterator<Item = (Range<S>, T)>,
2741 S: ToOffset,
2742 T: Into<Arc<str>>,
2743 {
2744 if self.read_only(cx) {
2745 return;
2746 }
2747
2748 self.buffer.update(cx, |buffer, cx| {
2749 buffer.edit(
2750 edits,
2751 Some(AutoindentMode::Block {
2752 original_indent_columns,
2753 }),
2754 cx,
2755 )
2756 });
2757 }
2758
2759 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2760 self.hide_context_menu(cx);
2761
2762 match phase {
2763 SelectPhase::Begin {
2764 position,
2765 add,
2766 click_count,
2767 } => self.begin_selection(position, add, click_count, cx),
2768 SelectPhase::BeginColumnar {
2769 position,
2770 goal_column,
2771 reset,
2772 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2773 SelectPhase::Extend {
2774 position,
2775 click_count,
2776 } => self.extend_selection(position, click_count, cx),
2777 SelectPhase::Update {
2778 position,
2779 goal_column,
2780 scroll_delta,
2781 } => self.update_selection(position, goal_column, scroll_delta, cx),
2782 SelectPhase::End => self.end_selection(cx),
2783 }
2784 }
2785
2786 fn extend_selection(
2787 &mut self,
2788 position: DisplayPoint,
2789 click_count: usize,
2790 cx: &mut ViewContext<Self>,
2791 ) {
2792 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2793 let tail = self.selections.newest::<usize>(cx).tail();
2794 self.begin_selection(position, false, click_count, cx);
2795
2796 let position = position.to_offset(&display_map, Bias::Left);
2797 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2798
2799 let mut pending_selection = self
2800 .selections
2801 .pending_anchor()
2802 .expect("extend_selection not called with pending selection");
2803 if position >= tail {
2804 pending_selection.start = tail_anchor;
2805 } else {
2806 pending_selection.end = tail_anchor;
2807 pending_selection.reversed = true;
2808 }
2809
2810 let mut pending_mode = self.selections.pending_mode().unwrap();
2811 match &mut pending_mode {
2812 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2813 _ => {}
2814 }
2815
2816 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2817 s.set_pending(pending_selection, pending_mode)
2818 });
2819 }
2820
2821 fn begin_selection(
2822 &mut self,
2823 position: DisplayPoint,
2824 add: bool,
2825 click_count: usize,
2826 cx: &mut ViewContext<Self>,
2827 ) {
2828 if !self.focus_handle.is_focused(cx) {
2829 self.last_focused_descendant = None;
2830 cx.focus(&self.focus_handle);
2831 }
2832
2833 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2834 let buffer = &display_map.buffer_snapshot;
2835 let newest_selection = self.selections.newest_anchor().clone();
2836 let position = display_map.clip_point(position, Bias::Left);
2837
2838 let start;
2839 let end;
2840 let mode;
2841 let auto_scroll;
2842 match click_count {
2843 1 => {
2844 start = buffer.anchor_before(position.to_point(&display_map));
2845 end = start;
2846 mode = SelectMode::Character;
2847 auto_scroll = true;
2848 }
2849 2 => {
2850 let range = movement::surrounding_word(&display_map, position);
2851 start = buffer.anchor_before(range.start.to_point(&display_map));
2852 end = buffer.anchor_before(range.end.to_point(&display_map));
2853 mode = SelectMode::Word(start..end);
2854 auto_scroll = true;
2855 }
2856 3 => {
2857 let position = display_map
2858 .clip_point(position, Bias::Left)
2859 .to_point(&display_map);
2860 let line_start = display_map.prev_line_boundary(position).0;
2861 let next_line_start = buffer.clip_point(
2862 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2863 Bias::Left,
2864 );
2865 start = buffer.anchor_before(line_start);
2866 end = buffer.anchor_before(next_line_start);
2867 mode = SelectMode::Line(start..end);
2868 auto_scroll = true;
2869 }
2870 _ => {
2871 start = buffer.anchor_before(0);
2872 end = buffer.anchor_before(buffer.len());
2873 mode = SelectMode::All;
2874 auto_scroll = false;
2875 }
2876 }
2877
2878 let point_to_delete: Option<usize> = {
2879 let selected_points: Vec<Selection<Point>> =
2880 self.selections.disjoint_in_range(start..end, cx);
2881
2882 if !add || click_count > 1 {
2883 None
2884 } else if !selected_points.is_empty() {
2885 Some(selected_points[0].id)
2886 } else {
2887 let clicked_point_already_selected =
2888 self.selections.disjoint.iter().find(|selection| {
2889 selection.start.to_point(buffer) == start.to_point(buffer)
2890 || selection.end.to_point(buffer) == end.to_point(buffer)
2891 });
2892
2893 clicked_point_already_selected.map(|selection| selection.id)
2894 }
2895 };
2896
2897 let selections_count = self.selections.count();
2898
2899 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2900 if let Some(point_to_delete) = point_to_delete {
2901 s.delete(point_to_delete);
2902
2903 if selections_count == 1 {
2904 s.set_pending_anchor_range(start..end, mode);
2905 }
2906 } else {
2907 if !add {
2908 s.clear_disjoint();
2909 } else if click_count > 1 {
2910 s.delete(newest_selection.id)
2911 }
2912
2913 s.set_pending_anchor_range(start..end, mode);
2914 }
2915 });
2916 }
2917
2918 fn begin_columnar_selection(
2919 &mut self,
2920 position: DisplayPoint,
2921 goal_column: u32,
2922 reset: bool,
2923 cx: &mut ViewContext<Self>,
2924 ) {
2925 if !self.focus_handle.is_focused(cx) {
2926 self.last_focused_descendant = None;
2927 cx.focus(&self.focus_handle);
2928 }
2929
2930 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2931
2932 if reset {
2933 let pointer_position = display_map
2934 .buffer_snapshot
2935 .anchor_before(position.to_point(&display_map));
2936
2937 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2938 s.clear_disjoint();
2939 s.set_pending_anchor_range(
2940 pointer_position..pointer_position,
2941 SelectMode::Character,
2942 );
2943 });
2944 }
2945
2946 let tail = self.selections.newest::<Point>(cx).tail();
2947 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2948
2949 if !reset {
2950 self.select_columns(
2951 tail.to_display_point(&display_map),
2952 position,
2953 goal_column,
2954 &display_map,
2955 cx,
2956 );
2957 }
2958 }
2959
2960 fn update_selection(
2961 &mut self,
2962 position: DisplayPoint,
2963 goal_column: u32,
2964 scroll_delta: gpui::Point<f32>,
2965 cx: &mut ViewContext<Self>,
2966 ) {
2967 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2968
2969 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2970 let tail = tail.to_display_point(&display_map);
2971 self.select_columns(tail, position, goal_column, &display_map, cx);
2972 } else if let Some(mut pending) = self.selections.pending_anchor() {
2973 let buffer = self.buffer.read(cx).snapshot(cx);
2974 let head;
2975 let tail;
2976 let mode = self.selections.pending_mode().unwrap();
2977 match &mode {
2978 SelectMode::Character => {
2979 head = position.to_point(&display_map);
2980 tail = pending.tail().to_point(&buffer);
2981 }
2982 SelectMode::Word(original_range) => {
2983 let original_display_range = original_range.start.to_display_point(&display_map)
2984 ..original_range.end.to_display_point(&display_map);
2985 let original_buffer_range = original_display_range.start.to_point(&display_map)
2986 ..original_display_range.end.to_point(&display_map);
2987 if movement::is_inside_word(&display_map, position)
2988 || original_display_range.contains(&position)
2989 {
2990 let word_range = movement::surrounding_word(&display_map, position);
2991 if word_range.start < original_display_range.start {
2992 head = word_range.start.to_point(&display_map);
2993 } else {
2994 head = word_range.end.to_point(&display_map);
2995 }
2996 } else {
2997 head = position.to_point(&display_map);
2998 }
2999
3000 if head <= original_buffer_range.start {
3001 tail = original_buffer_range.end;
3002 } else {
3003 tail = original_buffer_range.start;
3004 }
3005 }
3006 SelectMode::Line(original_range) => {
3007 let original_range = original_range.to_point(&display_map.buffer_snapshot);
3008
3009 let position = display_map
3010 .clip_point(position, Bias::Left)
3011 .to_point(&display_map);
3012 let line_start = display_map.prev_line_boundary(position).0;
3013 let next_line_start = buffer.clip_point(
3014 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3015 Bias::Left,
3016 );
3017
3018 if line_start < original_range.start {
3019 head = line_start
3020 } else {
3021 head = next_line_start
3022 }
3023
3024 if head <= original_range.start {
3025 tail = original_range.end;
3026 } else {
3027 tail = original_range.start;
3028 }
3029 }
3030 SelectMode::All => {
3031 return;
3032 }
3033 };
3034
3035 if head < tail {
3036 pending.start = buffer.anchor_before(head);
3037 pending.end = buffer.anchor_before(tail);
3038 pending.reversed = true;
3039 } else {
3040 pending.start = buffer.anchor_before(tail);
3041 pending.end = buffer.anchor_before(head);
3042 pending.reversed = false;
3043 }
3044
3045 self.change_selections(None, cx, |s| {
3046 s.set_pending(pending, mode);
3047 });
3048 } else {
3049 log::error!("update_selection dispatched with no pending selection");
3050 return;
3051 }
3052
3053 self.apply_scroll_delta(scroll_delta, cx);
3054 cx.notify();
3055 }
3056
3057 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3058 self.columnar_selection_tail.take();
3059 if self.selections.pending_anchor().is_some() {
3060 let selections = self.selections.all::<usize>(cx);
3061 self.change_selections(None, cx, |s| {
3062 s.select(selections);
3063 s.clear_pending();
3064 });
3065 }
3066 }
3067
3068 fn select_columns(
3069 &mut self,
3070 tail: DisplayPoint,
3071 head: DisplayPoint,
3072 goal_column: u32,
3073 display_map: &DisplaySnapshot,
3074 cx: &mut ViewContext<Self>,
3075 ) {
3076 let start_row = cmp::min(tail.row(), head.row());
3077 let end_row = cmp::max(tail.row(), head.row());
3078 let start_column = cmp::min(tail.column(), goal_column);
3079 let end_column = cmp::max(tail.column(), goal_column);
3080 let reversed = start_column < tail.column();
3081
3082 let selection_ranges = (start_row.0..=end_row.0)
3083 .map(DisplayRow)
3084 .filter_map(|row| {
3085 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3086 let start = display_map
3087 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3088 .to_point(display_map);
3089 let end = display_map
3090 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3091 .to_point(display_map);
3092 if reversed {
3093 Some(end..start)
3094 } else {
3095 Some(start..end)
3096 }
3097 } else {
3098 None
3099 }
3100 })
3101 .collect::<Vec<_>>();
3102
3103 self.change_selections(None, cx, |s| {
3104 s.select_ranges(selection_ranges);
3105 });
3106 cx.notify();
3107 }
3108
3109 pub fn has_pending_nonempty_selection(&self) -> bool {
3110 let pending_nonempty_selection = match self.selections.pending_anchor() {
3111 Some(Selection { start, end, .. }) => start != end,
3112 None => false,
3113 };
3114
3115 pending_nonempty_selection
3116 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3117 }
3118
3119 pub fn has_pending_selection(&self) -> bool {
3120 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3121 }
3122
3123 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3124 if self.clear_expanded_diff_hunks(cx) {
3125 cx.notify();
3126 return;
3127 }
3128 if self.dismiss_menus_and_popups(true, cx) {
3129 return;
3130 }
3131
3132 if self.mode == EditorMode::Full
3133 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3134 {
3135 return;
3136 }
3137
3138 cx.propagate();
3139 }
3140
3141 pub fn dismiss_menus_and_popups(
3142 &mut self,
3143 should_report_inline_completion_event: bool,
3144 cx: &mut ViewContext<Self>,
3145 ) -> bool {
3146 if self.take_rename(false, cx).is_some() {
3147 return true;
3148 }
3149
3150 if hide_hover(self, cx) {
3151 return true;
3152 }
3153
3154 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3155 return true;
3156 }
3157
3158 if self.hide_context_menu(cx).is_some() {
3159 return true;
3160 }
3161
3162 if self.mouse_context_menu.take().is_some() {
3163 return true;
3164 }
3165
3166 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3167 return true;
3168 }
3169
3170 if self.snippet_stack.pop().is_some() {
3171 return true;
3172 }
3173
3174 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3175 self.dismiss_diagnostics(cx);
3176 return true;
3177 }
3178
3179 false
3180 }
3181
3182 fn linked_editing_ranges_for(
3183 &self,
3184 selection: Range<text::Anchor>,
3185 cx: &AppContext,
3186 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3187 if self.linked_edit_ranges.is_empty() {
3188 return None;
3189 }
3190 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3191 selection.end.buffer_id.and_then(|end_buffer_id| {
3192 if selection.start.buffer_id != Some(end_buffer_id) {
3193 return None;
3194 }
3195 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3196 let snapshot = buffer.read(cx).snapshot();
3197 self.linked_edit_ranges
3198 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3199 .map(|ranges| (ranges, snapshot, buffer))
3200 })?;
3201 use text::ToOffset as TO;
3202 // find offset from the start of current range to current cursor position
3203 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3204
3205 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3206 let start_difference = start_offset - start_byte_offset;
3207 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3208 let end_difference = end_offset - start_byte_offset;
3209 // Current range has associated linked ranges.
3210 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3211 for range in linked_ranges.iter() {
3212 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3213 let end_offset = start_offset + end_difference;
3214 let start_offset = start_offset + start_difference;
3215 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3216 continue;
3217 }
3218 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3219 if s.start.buffer_id != selection.start.buffer_id
3220 || s.end.buffer_id != selection.end.buffer_id
3221 {
3222 return false;
3223 }
3224 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3225 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3226 }) {
3227 continue;
3228 }
3229 let start = buffer_snapshot.anchor_after(start_offset);
3230 let end = buffer_snapshot.anchor_after(end_offset);
3231 linked_edits
3232 .entry(buffer.clone())
3233 .or_default()
3234 .push(start..end);
3235 }
3236 Some(linked_edits)
3237 }
3238
3239 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3240 let text: Arc<str> = text.into();
3241
3242 if self.read_only(cx) {
3243 return;
3244 }
3245
3246 let selections = self.selections.all_adjusted(cx);
3247 let mut bracket_inserted = false;
3248 let mut edits = Vec::new();
3249 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3250 let mut new_selections = Vec::with_capacity(selections.len());
3251 let mut new_autoclose_regions = Vec::new();
3252 let snapshot = self.buffer.read(cx).read(cx);
3253
3254 for (selection, autoclose_region) in
3255 self.selections_with_autoclose_regions(selections, &snapshot)
3256 {
3257 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3258 // Determine if the inserted text matches the opening or closing
3259 // bracket of any of this language's bracket pairs.
3260 let mut bracket_pair = None;
3261 let mut is_bracket_pair_start = false;
3262 let mut is_bracket_pair_end = false;
3263 if !text.is_empty() {
3264 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3265 // and they are removing the character that triggered IME popup.
3266 for (pair, enabled) in scope.brackets() {
3267 if !pair.close && !pair.surround {
3268 continue;
3269 }
3270
3271 if enabled && pair.start.ends_with(text.as_ref()) {
3272 let prefix_len = pair.start.len() - text.len();
3273 let preceding_text_matches_prefix = prefix_len == 0
3274 || (selection.start.column >= (prefix_len as u32)
3275 && snapshot.contains_str_at(
3276 Point::new(
3277 selection.start.row,
3278 selection.start.column - (prefix_len as u32),
3279 ),
3280 &pair.start[..prefix_len],
3281 ));
3282 if preceding_text_matches_prefix {
3283 bracket_pair = Some(pair.clone());
3284 is_bracket_pair_start = true;
3285 break;
3286 }
3287 }
3288 if pair.end.as_str() == text.as_ref() {
3289 bracket_pair = Some(pair.clone());
3290 is_bracket_pair_end = true;
3291 break;
3292 }
3293 }
3294 }
3295
3296 if let Some(bracket_pair) = bracket_pair {
3297 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3298 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3299 let auto_surround =
3300 self.use_auto_surround && snapshot_settings.use_auto_surround;
3301 if selection.is_empty() {
3302 if is_bracket_pair_start {
3303 // If the inserted text is a suffix of an opening bracket and the
3304 // selection is preceded by the rest of the opening bracket, then
3305 // insert the closing bracket.
3306 let following_text_allows_autoclose = snapshot
3307 .chars_at(selection.start)
3308 .next()
3309 .map_or(true, |c| scope.should_autoclose_before(c));
3310
3311 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3312 && bracket_pair.start.len() == 1
3313 {
3314 let target = bracket_pair.start.chars().next().unwrap();
3315 let current_line_count = snapshot
3316 .reversed_chars_at(selection.start)
3317 .take_while(|&c| c != '\n')
3318 .filter(|&c| c == target)
3319 .count();
3320 current_line_count % 2 == 1
3321 } else {
3322 false
3323 };
3324
3325 if autoclose
3326 && bracket_pair.close
3327 && following_text_allows_autoclose
3328 && !is_closing_quote
3329 {
3330 let anchor = snapshot.anchor_before(selection.end);
3331 new_selections.push((selection.map(|_| anchor), text.len()));
3332 new_autoclose_regions.push((
3333 anchor,
3334 text.len(),
3335 selection.id,
3336 bracket_pair.clone(),
3337 ));
3338 edits.push((
3339 selection.range(),
3340 format!("{}{}", text, bracket_pair.end).into(),
3341 ));
3342 bracket_inserted = true;
3343 continue;
3344 }
3345 }
3346
3347 if let Some(region) = autoclose_region {
3348 // If the selection is followed by an auto-inserted closing bracket,
3349 // then don't insert that closing bracket again; just move the selection
3350 // past the closing bracket.
3351 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3352 && text.as_ref() == region.pair.end.as_str();
3353 if should_skip {
3354 let anchor = snapshot.anchor_after(selection.end);
3355 new_selections
3356 .push((selection.map(|_| anchor), region.pair.end.len()));
3357 continue;
3358 }
3359 }
3360
3361 let always_treat_brackets_as_autoclosed = snapshot
3362 .settings_at(selection.start, cx)
3363 .always_treat_brackets_as_autoclosed;
3364 if always_treat_brackets_as_autoclosed
3365 && is_bracket_pair_end
3366 && snapshot.contains_str_at(selection.end, text.as_ref())
3367 {
3368 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3369 // and the inserted text is a closing bracket and the selection is followed
3370 // by the closing bracket then move the selection past the closing bracket.
3371 let anchor = snapshot.anchor_after(selection.end);
3372 new_selections.push((selection.map(|_| anchor), text.len()));
3373 continue;
3374 }
3375 }
3376 // If an opening bracket is 1 character long and is typed while
3377 // text is selected, then surround that text with the bracket pair.
3378 else if auto_surround
3379 && bracket_pair.surround
3380 && is_bracket_pair_start
3381 && bracket_pair.start.chars().count() == 1
3382 {
3383 edits.push((selection.start..selection.start, text.clone()));
3384 edits.push((
3385 selection.end..selection.end,
3386 bracket_pair.end.as_str().into(),
3387 ));
3388 bracket_inserted = true;
3389 new_selections.push((
3390 Selection {
3391 id: selection.id,
3392 start: snapshot.anchor_after(selection.start),
3393 end: snapshot.anchor_before(selection.end),
3394 reversed: selection.reversed,
3395 goal: selection.goal,
3396 },
3397 0,
3398 ));
3399 continue;
3400 }
3401 }
3402 }
3403
3404 if self.auto_replace_emoji_shortcode
3405 && selection.is_empty()
3406 && text.as_ref().ends_with(':')
3407 {
3408 if let Some(possible_emoji_short_code) =
3409 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3410 {
3411 if !possible_emoji_short_code.is_empty() {
3412 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3413 let emoji_shortcode_start = Point::new(
3414 selection.start.row,
3415 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3416 );
3417
3418 // Remove shortcode from buffer
3419 edits.push((
3420 emoji_shortcode_start..selection.start,
3421 "".to_string().into(),
3422 ));
3423 new_selections.push((
3424 Selection {
3425 id: selection.id,
3426 start: snapshot.anchor_after(emoji_shortcode_start),
3427 end: snapshot.anchor_before(selection.start),
3428 reversed: selection.reversed,
3429 goal: selection.goal,
3430 },
3431 0,
3432 ));
3433
3434 // Insert emoji
3435 let selection_start_anchor = snapshot.anchor_after(selection.start);
3436 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3437 edits.push((selection.start..selection.end, emoji.to_string().into()));
3438
3439 continue;
3440 }
3441 }
3442 }
3443 }
3444
3445 // If not handling any auto-close operation, then just replace the selected
3446 // text with the given input and move the selection to the end of the
3447 // newly inserted text.
3448 let anchor = snapshot.anchor_after(selection.end);
3449 if !self.linked_edit_ranges.is_empty() {
3450 let start_anchor = snapshot.anchor_before(selection.start);
3451
3452 let is_word_char = text.chars().next().map_or(true, |char| {
3453 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3454 classifier.is_word(char)
3455 });
3456
3457 if is_word_char {
3458 if let Some(ranges) = self
3459 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3460 {
3461 for (buffer, edits) in ranges {
3462 linked_edits
3463 .entry(buffer.clone())
3464 .or_default()
3465 .extend(edits.into_iter().map(|range| (range, text.clone())));
3466 }
3467 }
3468 }
3469 }
3470
3471 new_selections.push((selection.map(|_| anchor), 0));
3472 edits.push((selection.start..selection.end, text.clone()));
3473 }
3474
3475 drop(snapshot);
3476
3477 self.transact(cx, |this, cx| {
3478 this.buffer.update(cx, |buffer, cx| {
3479 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3480 });
3481 for (buffer, edits) in linked_edits {
3482 buffer.update(cx, |buffer, cx| {
3483 let snapshot = buffer.snapshot();
3484 let edits = edits
3485 .into_iter()
3486 .map(|(range, text)| {
3487 use text::ToPoint as TP;
3488 let end_point = TP::to_point(&range.end, &snapshot);
3489 let start_point = TP::to_point(&range.start, &snapshot);
3490 (start_point..end_point, text)
3491 })
3492 .sorted_by_key(|(range, _)| range.start)
3493 .collect::<Vec<_>>();
3494 buffer.edit(edits, None, cx);
3495 })
3496 }
3497 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3498 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3499 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
3500 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
3501 .zip(new_selection_deltas)
3502 .map(|(selection, delta)| Selection {
3503 id: selection.id,
3504 start: selection.start + delta,
3505 end: selection.end + delta,
3506 reversed: selection.reversed,
3507 goal: SelectionGoal::None,
3508 })
3509 .collect::<Vec<_>>();
3510
3511 let mut i = 0;
3512 for (position, delta, selection_id, pair) in new_autoclose_regions {
3513 let position = position.to_offset(&map.buffer_snapshot) + delta;
3514 let start = map.buffer_snapshot.anchor_before(position);
3515 let end = map.buffer_snapshot.anchor_after(position);
3516 while let Some(existing_state) = this.autoclose_regions.get(i) {
3517 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
3518 Ordering::Less => i += 1,
3519 Ordering::Greater => break,
3520 Ordering::Equal => {
3521 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
3522 Ordering::Less => i += 1,
3523 Ordering::Equal => break,
3524 Ordering::Greater => break,
3525 }
3526 }
3527 }
3528 }
3529 this.autoclose_regions.insert(
3530 i,
3531 AutocloseRegion {
3532 selection_id,
3533 range: start..end,
3534 pair,
3535 },
3536 );
3537 }
3538
3539 let had_active_inline_completion = this.has_active_inline_completion(cx);
3540 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3541 s.select(new_selections)
3542 });
3543
3544 if !bracket_inserted {
3545 if let Some(on_type_format_task) =
3546 this.trigger_on_type_formatting(text.to_string(), cx)
3547 {
3548 on_type_format_task.detach_and_log_err(cx);
3549 }
3550 }
3551
3552 let editor_settings = EditorSettings::get_global(cx);
3553 if bracket_inserted
3554 && (editor_settings.auto_signature_help
3555 || editor_settings.show_signature_help_after_edits)
3556 {
3557 this.show_signature_help(&ShowSignatureHelp, cx);
3558 }
3559
3560 let trigger_in_words = !had_active_inline_completion;
3561 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3562 linked_editing_ranges::refresh_linked_ranges(this, cx);
3563 this.refresh_inline_completion(true, false, cx);
3564 });
3565 }
3566
3567 fn find_possible_emoji_shortcode_at_position(
3568 snapshot: &MultiBufferSnapshot,
3569 position: Point,
3570 ) -> Option<String> {
3571 let mut chars = Vec::new();
3572 let mut found_colon = false;
3573 for char in snapshot.reversed_chars_at(position).take(100) {
3574 // Found a possible emoji shortcode in the middle of the buffer
3575 if found_colon {
3576 if char.is_whitespace() {
3577 chars.reverse();
3578 return Some(chars.iter().collect());
3579 }
3580 // If the previous character is not a whitespace, we are in the middle of a word
3581 // and we only want to complete the shortcode if the word is made up of other emojis
3582 let mut containing_word = String::new();
3583 for ch in snapshot
3584 .reversed_chars_at(position)
3585 .skip(chars.len() + 1)
3586 .take(100)
3587 {
3588 if ch.is_whitespace() {
3589 break;
3590 }
3591 containing_word.push(ch);
3592 }
3593 let containing_word = containing_word.chars().rev().collect::<String>();
3594 if util::word_consists_of_emojis(containing_word.as_str()) {
3595 chars.reverse();
3596 return Some(chars.iter().collect());
3597 }
3598 }
3599
3600 if char.is_whitespace() || !char.is_ascii() {
3601 return None;
3602 }
3603 if char == ':' {
3604 found_colon = true;
3605 } else {
3606 chars.push(char);
3607 }
3608 }
3609 // Found a possible emoji shortcode at the beginning of the buffer
3610 chars.reverse();
3611 Some(chars.iter().collect())
3612 }
3613
3614 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3615 self.transact(cx, |this, cx| {
3616 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3617 let selections = this.selections.all::<usize>(cx);
3618 let multi_buffer = this.buffer.read(cx);
3619 let buffer = multi_buffer.snapshot(cx);
3620 selections
3621 .iter()
3622 .map(|selection| {
3623 let start_point = selection.start.to_point(&buffer);
3624 let mut indent =
3625 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3626 indent.len = cmp::min(indent.len, start_point.column);
3627 let start = selection.start;
3628 let end = selection.end;
3629 let selection_is_empty = start == end;
3630 let language_scope = buffer.language_scope_at(start);
3631 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3632 &language_scope
3633 {
3634 let leading_whitespace_len = buffer
3635 .reversed_chars_at(start)
3636 .take_while(|c| c.is_whitespace() && *c != '\n')
3637 .map(|c| c.len_utf8())
3638 .sum::<usize>();
3639
3640 let trailing_whitespace_len = buffer
3641 .chars_at(end)
3642 .take_while(|c| c.is_whitespace() && *c != '\n')
3643 .map(|c| c.len_utf8())
3644 .sum::<usize>();
3645
3646 let insert_extra_newline =
3647 language.brackets().any(|(pair, enabled)| {
3648 let pair_start = pair.start.trim_end();
3649 let pair_end = pair.end.trim_start();
3650
3651 enabled
3652 && pair.newline
3653 && buffer.contains_str_at(
3654 end + trailing_whitespace_len,
3655 pair_end,
3656 )
3657 && buffer.contains_str_at(
3658 (start - leading_whitespace_len)
3659 .saturating_sub(pair_start.len()),
3660 pair_start,
3661 )
3662 });
3663
3664 // Comment extension on newline is allowed only for cursor selections
3665 let comment_delimiter = maybe!({
3666 if !selection_is_empty {
3667 return None;
3668 }
3669
3670 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3671 return None;
3672 }
3673
3674 let delimiters = language.line_comment_prefixes();
3675 let max_len_of_delimiter =
3676 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3677 let (snapshot, range) =
3678 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3679
3680 let mut index_of_first_non_whitespace = 0;
3681 let comment_candidate = snapshot
3682 .chars_for_range(range)
3683 .skip_while(|c| {
3684 let should_skip = c.is_whitespace();
3685 if should_skip {
3686 index_of_first_non_whitespace += 1;
3687 }
3688 should_skip
3689 })
3690 .take(max_len_of_delimiter)
3691 .collect::<String>();
3692 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3693 comment_candidate.starts_with(comment_prefix.as_ref())
3694 })?;
3695 let cursor_is_placed_after_comment_marker =
3696 index_of_first_non_whitespace + comment_prefix.len()
3697 <= start_point.column as usize;
3698 if cursor_is_placed_after_comment_marker {
3699 Some(comment_prefix.clone())
3700 } else {
3701 None
3702 }
3703 });
3704 (comment_delimiter, insert_extra_newline)
3705 } else {
3706 (None, false)
3707 };
3708
3709 let capacity_for_delimiter = comment_delimiter
3710 .as_deref()
3711 .map(str::len)
3712 .unwrap_or_default();
3713 let mut new_text =
3714 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3715 new_text.push('\n');
3716 new_text.extend(indent.chars());
3717 if let Some(delimiter) = &comment_delimiter {
3718 new_text.push_str(delimiter);
3719 }
3720 if insert_extra_newline {
3721 new_text = new_text.repeat(2);
3722 }
3723
3724 let anchor = buffer.anchor_after(end);
3725 let new_selection = selection.map(|_| anchor);
3726 (
3727 (start..end, new_text),
3728 (insert_extra_newline, new_selection),
3729 )
3730 })
3731 .unzip()
3732 };
3733
3734 this.edit_with_autoindent(edits, cx);
3735 let buffer = this.buffer.read(cx).snapshot(cx);
3736 let new_selections = selection_fixup_info
3737 .into_iter()
3738 .map(|(extra_newline_inserted, new_selection)| {
3739 let mut cursor = new_selection.end.to_point(&buffer);
3740 if extra_newline_inserted {
3741 cursor.row -= 1;
3742 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3743 }
3744 new_selection.map(|_| cursor)
3745 })
3746 .collect();
3747
3748 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3749 this.refresh_inline_completion(true, false, cx);
3750 });
3751 }
3752
3753 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3754 let buffer = self.buffer.read(cx);
3755 let snapshot = buffer.snapshot(cx);
3756
3757 let mut edits = Vec::new();
3758 let mut rows = Vec::new();
3759
3760 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3761 let cursor = selection.head();
3762 let row = cursor.row;
3763
3764 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3765
3766 let newline = "\n".to_string();
3767 edits.push((start_of_line..start_of_line, newline));
3768
3769 rows.push(row + rows_inserted as u32);
3770 }
3771
3772 self.transact(cx, |editor, cx| {
3773 editor.edit(edits, cx);
3774
3775 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3776 let mut index = 0;
3777 s.move_cursors_with(|map, _, _| {
3778 let row = rows[index];
3779 index += 1;
3780
3781 let point = Point::new(row, 0);
3782 let boundary = map.next_line_boundary(point).1;
3783 let clipped = map.clip_point(boundary, Bias::Left);
3784
3785 (clipped, SelectionGoal::None)
3786 });
3787 });
3788
3789 let mut indent_edits = Vec::new();
3790 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3791 for row in rows {
3792 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3793 for (row, indent) in indents {
3794 if indent.len == 0 {
3795 continue;
3796 }
3797
3798 let text = match indent.kind {
3799 IndentKind::Space => " ".repeat(indent.len as usize),
3800 IndentKind::Tab => "\t".repeat(indent.len as usize),
3801 };
3802 let point = Point::new(row.0, 0);
3803 indent_edits.push((point..point, text));
3804 }
3805 }
3806 editor.edit(indent_edits, cx);
3807 });
3808 }
3809
3810 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3811 let buffer = self.buffer.read(cx);
3812 let snapshot = buffer.snapshot(cx);
3813
3814 let mut edits = Vec::new();
3815 let mut rows = Vec::new();
3816 let mut rows_inserted = 0;
3817
3818 for selection in self.selections.all_adjusted(cx) {
3819 let cursor = selection.head();
3820 let row = cursor.row;
3821
3822 let point = Point::new(row + 1, 0);
3823 let start_of_line = snapshot.clip_point(point, Bias::Left);
3824
3825 let newline = "\n".to_string();
3826 edits.push((start_of_line..start_of_line, newline));
3827
3828 rows_inserted += 1;
3829 rows.push(row + rows_inserted);
3830 }
3831
3832 self.transact(cx, |editor, cx| {
3833 editor.edit(edits, cx);
3834
3835 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3836 let mut index = 0;
3837 s.move_cursors_with(|map, _, _| {
3838 let row = rows[index];
3839 index += 1;
3840
3841 let point = Point::new(row, 0);
3842 let boundary = map.next_line_boundary(point).1;
3843 let clipped = map.clip_point(boundary, Bias::Left);
3844
3845 (clipped, SelectionGoal::None)
3846 });
3847 });
3848
3849 let mut indent_edits = Vec::new();
3850 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3851 for row in rows {
3852 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3853 for (row, indent) in indents {
3854 if indent.len == 0 {
3855 continue;
3856 }
3857
3858 let text = match indent.kind {
3859 IndentKind::Space => " ".repeat(indent.len as usize),
3860 IndentKind::Tab => "\t".repeat(indent.len as usize),
3861 };
3862 let point = Point::new(row.0, 0);
3863 indent_edits.push((point..point, text));
3864 }
3865 }
3866 editor.edit(indent_edits, cx);
3867 });
3868 }
3869
3870 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3871 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3872 original_indent_columns: Vec::new(),
3873 });
3874 self.insert_with_autoindent_mode(text, autoindent, cx);
3875 }
3876
3877 fn insert_with_autoindent_mode(
3878 &mut self,
3879 text: &str,
3880 autoindent_mode: Option<AutoindentMode>,
3881 cx: &mut ViewContext<Self>,
3882 ) {
3883 if self.read_only(cx) {
3884 return;
3885 }
3886
3887 let text: Arc<str> = text.into();
3888 self.transact(cx, |this, cx| {
3889 let old_selections = this.selections.all_adjusted(cx);
3890 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3891 let anchors = {
3892 let snapshot = buffer.read(cx);
3893 old_selections
3894 .iter()
3895 .map(|s| {
3896 let anchor = snapshot.anchor_after(s.head());
3897 s.map(|_| anchor)
3898 })
3899 .collect::<Vec<_>>()
3900 };
3901 buffer.edit(
3902 old_selections
3903 .iter()
3904 .map(|s| (s.start..s.end, text.clone())),
3905 autoindent_mode,
3906 cx,
3907 );
3908 anchors
3909 });
3910
3911 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3912 s.select_anchors(selection_anchors);
3913 })
3914 });
3915 }
3916
3917 fn trigger_completion_on_input(
3918 &mut self,
3919 text: &str,
3920 trigger_in_words: bool,
3921 cx: &mut ViewContext<Self>,
3922 ) {
3923 if self.is_completion_trigger(text, trigger_in_words, cx) {
3924 self.show_completions(
3925 &ShowCompletions {
3926 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3927 },
3928 cx,
3929 );
3930 } else {
3931 self.hide_context_menu(cx);
3932 }
3933 }
3934
3935 fn is_completion_trigger(
3936 &self,
3937 text: &str,
3938 trigger_in_words: bool,
3939 cx: &mut ViewContext<Self>,
3940 ) -> bool {
3941 let position = self.selections.newest_anchor().head();
3942 let multibuffer = self.buffer.read(cx);
3943 let Some(buffer) = position
3944 .buffer_id
3945 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3946 else {
3947 return false;
3948 };
3949
3950 if let Some(completion_provider) = &self.completion_provider {
3951 completion_provider.is_completion_trigger(
3952 &buffer,
3953 position.text_anchor,
3954 text,
3955 trigger_in_words,
3956 cx,
3957 )
3958 } else {
3959 false
3960 }
3961 }
3962
3963 /// If any empty selections is touching the start of its innermost containing autoclose
3964 /// region, expand it to select the brackets.
3965 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3966 let selections = self.selections.all::<usize>(cx);
3967 let buffer = self.buffer.read(cx).read(cx);
3968 let new_selections = self
3969 .selections_with_autoclose_regions(selections, &buffer)
3970 .map(|(mut selection, region)| {
3971 if !selection.is_empty() {
3972 return selection;
3973 }
3974
3975 if let Some(region) = region {
3976 let mut range = region.range.to_offset(&buffer);
3977 if selection.start == range.start && range.start >= region.pair.start.len() {
3978 range.start -= region.pair.start.len();
3979 if buffer.contains_str_at(range.start, ®ion.pair.start)
3980 && buffer.contains_str_at(range.end, ®ion.pair.end)
3981 {
3982 range.end += region.pair.end.len();
3983 selection.start = range.start;
3984 selection.end = range.end;
3985
3986 return selection;
3987 }
3988 }
3989 }
3990
3991 let always_treat_brackets_as_autoclosed = buffer
3992 .settings_at(selection.start, cx)
3993 .always_treat_brackets_as_autoclosed;
3994
3995 if !always_treat_brackets_as_autoclosed {
3996 return selection;
3997 }
3998
3999 if let Some(scope) = buffer.language_scope_at(selection.start) {
4000 for (pair, enabled) in scope.brackets() {
4001 if !enabled || !pair.close {
4002 continue;
4003 }
4004
4005 if buffer.contains_str_at(selection.start, &pair.end) {
4006 let pair_start_len = pair.start.len();
4007 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
4008 {
4009 selection.start -= pair_start_len;
4010 selection.end += pair.end.len();
4011
4012 return selection;
4013 }
4014 }
4015 }
4016 }
4017
4018 selection
4019 })
4020 .collect();
4021
4022 drop(buffer);
4023 self.change_selections(None, cx, |selections| selections.select(new_selections));
4024 }
4025
4026 /// Iterate the given selections, and for each one, find the smallest surrounding
4027 /// autoclose region. This uses the ordering of the selections and the autoclose
4028 /// regions to avoid repeated comparisons.
4029 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4030 &'a self,
4031 selections: impl IntoIterator<Item = Selection<D>>,
4032 buffer: &'a MultiBufferSnapshot,
4033 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4034 let mut i = 0;
4035 let mut regions = self.autoclose_regions.as_slice();
4036 selections.into_iter().map(move |selection| {
4037 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4038
4039 let mut enclosing = None;
4040 while let Some(pair_state) = regions.get(i) {
4041 if pair_state.range.end.to_offset(buffer) < range.start {
4042 regions = ®ions[i + 1..];
4043 i = 0;
4044 } else if pair_state.range.start.to_offset(buffer) > range.end {
4045 break;
4046 } else {
4047 if pair_state.selection_id == selection.id {
4048 enclosing = Some(pair_state);
4049 }
4050 i += 1;
4051 }
4052 }
4053
4054 (selection, enclosing)
4055 })
4056 }
4057
4058 /// Remove any autoclose regions that no longer contain their selection.
4059 fn invalidate_autoclose_regions(
4060 &mut self,
4061 mut selections: &[Selection<Anchor>],
4062 buffer: &MultiBufferSnapshot,
4063 ) {
4064 self.autoclose_regions.retain(|state| {
4065 let mut i = 0;
4066 while let Some(selection) = selections.get(i) {
4067 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4068 selections = &selections[1..];
4069 continue;
4070 }
4071 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4072 break;
4073 }
4074 if selection.id == state.selection_id {
4075 return true;
4076 } else {
4077 i += 1;
4078 }
4079 }
4080 false
4081 });
4082 }
4083
4084 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4085 let offset = position.to_offset(buffer);
4086 let (word_range, kind) = buffer.surrounding_word(offset, true);
4087 if offset > word_range.start && kind == Some(CharKind::Word) {
4088 Some(
4089 buffer
4090 .text_for_range(word_range.start..offset)
4091 .collect::<String>(),
4092 )
4093 } else {
4094 None
4095 }
4096 }
4097
4098 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4099 self.refresh_inlay_hints(
4100 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4101 cx,
4102 );
4103 }
4104
4105 pub fn inlay_hints_enabled(&self) -> bool {
4106 self.inlay_hint_cache.enabled
4107 }
4108
4109 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4110 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4111 return;
4112 }
4113
4114 let reason_description = reason.description();
4115 let ignore_debounce = matches!(
4116 reason,
4117 InlayHintRefreshReason::SettingsChange(_)
4118 | InlayHintRefreshReason::Toggle(_)
4119 | InlayHintRefreshReason::ExcerptsRemoved(_)
4120 );
4121 let (invalidate_cache, required_languages) = match reason {
4122 InlayHintRefreshReason::Toggle(enabled) => {
4123 self.inlay_hint_cache.enabled = enabled;
4124 if enabled {
4125 (InvalidationStrategy::RefreshRequested, None)
4126 } else {
4127 self.inlay_hint_cache.clear();
4128 self.splice_inlays(
4129 self.visible_inlay_hints(cx)
4130 .iter()
4131 .map(|inlay| inlay.id)
4132 .collect(),
4133 Vec::new(),
4134 cx,
4135 );
4136 return;
4137 }
4138 }
4139 InlayHintRefreshReason::SettingsChange(new_settings) => {
4140 match self.inlay_hint_cache.update_settings(
4141 &self.buffer,
4142 new_settings,
4143 self.visible_inlay_hints(cx),
4144 cx,
4145 ) {
4146 ControlFlow::Break(Some(InlaySplice {
4147 to_remove,
4148 to_insert,
4149 })) => {
4150 self.splice_inlays(to_remove, to_insert, cx);
4151 return;
4152 }
4153 ControlFlow::Break(None) => return,
4154 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4155 }
4156 }
4157 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4158 if let Some(InlaySplice {
4159 to_remove,
4160 to_insert,
4161 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4162 {
4163 self.splice_inlays(to_remove, to_insert, cx);
4164 }
4165 return;
4166 }
4167 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4168 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4169 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4170 }
4171 InlayHintRefreshReason::RefreshRequested => {
4172 (InvalidationStrategy::RefreshRequested, None)
4173 }
4174 };
4175
4176 if let Some(InlaySplice {
4177 to_remove,
4178 to_insert,
4179 }) = self.inlay_hint_cache.spawn_hint_refresh(
4180 reason_description,
4181 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4182 invalidate_cache,
4183 ignore_debounce,
4184 cx,
4185 ) {
4186 self.splice_inlays(to_remove, to_insert, cx);
4187 }
4188 }
4189
4190 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4191 self.display_map
4192 .read(cx)
4193 .current_inlays()
4194 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4195 .cloned()
4196 .collect()
4197 }
4198
4199 pub fn excerpts_for_inlay_hints_query(
4200 &self,
4201 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4202 cx: &mut ViewContext<Editor>,
4203 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4204 let Some(project) = self.project.as_ref() else {
4205 return HashMap::default();
4206 };
4207 let project = project.read(cx);
4208 let multi_buffer = self.buffer().read(cx);
4209 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4210 let multi_buffer_visible_start = self
4211 .scroll_manager
4212 .anchor()
4213 .anchor
4214 .to_point(&multi_buffer_snapshot);
4215 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4216 multi_buffer_visible_start
4217 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4218 Bias::Left,
4219 );
4220 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4221 multi_buffer
4222 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4223 .into_iter()
4224 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4225 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4226 let buffer = buffer_handle.read(cx);
4227 let buffer_file = project::File::from_dyn(buffer.file())?;
4228 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4229 let worktree_entry = buffer_worktree
4230 .read(cx)
4231 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4232 if worktree_entry.is_ignored {
4233 return None;
4234 }
4235
4236 let language = buffer.language()?;
4237 if let Some(restrict_to_languages) = restrict_to_languages {
4238 if !restrict_to_languages.contains(language) {
4239 return None;
4240 }
4241 }
4242 Some((
4243 excerpt_id,
4244 (
4245 buffer_handle,
4246 buffer.version().clone(),
4247 excerpt_visible_range,
4248 ),
4249 ))
4250 })
4251 .collect()
4252 }
4253
4254 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4255 TextLayoutDetails {
4256 text_system: cx.text_system().clone(),
4257 editor_style: self.style.clone().unwrap(),
4258 rem_size: cx.rem_size(),
4259 scroll_anchor: self.scroll_manager.anchor(),
4260 visible_rows: self.visible_line_count(),
4261 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4262 }
4263 }
4264
4265 fn splice_inlays(
4266 &self,
4267 to_remove: Vec<InlayId>,
4268 to_insert: Vec<Inlay>,
4269 cx: &mut ViewContext<Self>,
4270 ) {
4271 self.display_map.update(cx, |display_map, cx| {
4272 display_map.splice_inlays(to_remove, to_insert, cx);
4273 });
4274 cx.notify();
4275 }
4276
4277 fn trigger_on_type_formatting(
4278 &self,
4279 input: String,
4280 cx: &mut ViewContext<Self>,
4281 ) -> Option<Task<Result<()>>> {
4282 if input.len() != 1 {
4283 return None;
4284 }
4285
4286 let project = self.project.as_ref()?;
4287 let position = self.selections.newest_anchor().head();
4288 let (buffer, buffer_position) = self
4289 .buffer
4290 .read(cx)
4291 .text_anchor_for_position(position, cx)?;
4292
4293 let settings = language_settings::language_settings(
4294 buffer
4295 .read(cx)
4296 .language_at(buffer_position)
4297 .map(|l| l.name()),
4298 buffer.read(cx).file(),
4299 cx,
4300 );
4301 if !settings.use_on_type_format {
4302 return None;
4303 }
4304
4305 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4306 // hence we do LSP request & edit on host side only — add formats to host's history.
4307 let push_to_lsp_host_history = true;
4308 // If this is not the host, append its history with new edits.
4309 let push_to_client_history = project.read(cx).is_via_collab();
4310
4311 let on_type_formatting = project.update(cx, |project, cx| {
4312 project.on_type_format(
4313 buffer.clone(),
4314 buffer_position,
4315 input,
4316 push_to_lsp_host_history,
4317 cx,
4318 )
4319 });
4320 Some(cx.spawn(|editor, mut cx| async move {
4321 if let Some(transaction) = on_type_formatting.await? {
4322 if push_to_client_history {
4323 buffer
4324 .update(&mut cx, |buffer, _| {
4325 buffer.push_transaction(transaction, Instant::now());
4326 })
4327 .ok();
4328 }
4329 editor.update(&mut cx, |editor, cx| {
4330 editor.refresh_document_highlights(cx);
4331 })?;
4332 }
4333 Ok(())
4334 }))
4335 }
4336
4337 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4338 if self.pending_rename.is_some() {
4339 return;
4340 }
4341
4342 let Some(provider) = self.completion_provider.as_ref() else {
4343 return;
4344 };
4345
4346 let position = self.selections.newest_anchor().head();
4347 let (buffer, buffer_position) =
4348 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4349 output
4350 } else {
4351 return;
4352 };
4353
4354 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4355 let is_followup_invoke = {
4356 let context_menu_state = self.context_menu.read();
4357 matches!(
4358 context_menu_state.deref(),
4359 Some(ContextMenu::Completions(_))
4360 )
4361 };
4362 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4363 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4364 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4365 CompletionTriggerKind::TRIGGER_CHARACTER
4366 }
4367
4368 _ => CompletionTriggerKind::INVOKED,
4369 };
4370 let completion_context = CompletionContext {
4371 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4372 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4373 Some(String::from(trigger))
4374 } else {
4375 None
4376 }
4377 }),
4378 trigger_kind,
4379 };
4380 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4381 let sort_completions = provider.sort_completions();
4382
4383 let id = post_inc(&mut self.next_completion_id);
4384 let task = cx.spawn(|this, mut cx| {
4385 async move {
4386 this.update(&mut cx, |this, _| {
4387 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4388 })?;
4389 let completions = completions.await.log_err();
4390 let menu = if let Some(completions) = completions {
4391 let mut menu = CompletionsMenu {
4392 id,
4393 sort_completions,
4394 initial_position: position,
4395 match_candidates: completions
4396 .iter()
4397 .enumerate()
4398 .map(|(id, completion)| {
4399 StringMatchCandidate::new(
4400 id,
4401 completion.label.text[completion.label.filter_range.clone()]
4402 .into(),
4403 )
4404 })
4405 .collect(),
4406 buffer: buffer.clone(),
4407 completions: Arc::new(RwLock::new(completions.into())),
4408 matches: Vec::new().into(),
4409 selected_item: 0,
4410 scroll_handle: UniformListScrollHandle::new(),
4411 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4412 DebouncedDelay::new(),
4413 )),
4414 };
4415 menu.filter(query.as_deref(), cx.background_executor().clone())
4416 .await;
4417
4418 if menu.matches.is_empty() {
4419 None
4420 } else {
4421 this.update(&mut cx, |editor, cx| {
4422 let completions = menu.completions.clone();
4423 let matches = menu.matches.clone();
4424
4425 let delay_ms = EditorSettings::get_global(cx)
4426 .completion_documentation_secondary_query_debounce;
4427 let delay = Duration::from_millis(delay_ms);
4428 editor
4429 .completion_documentation_pre_resolve_debounce
4430 .fire_new(delay, cx, |editor, cx| {
4431 CompletionsMenu::pre_resolve_completion_documentation(
4432 buffer,
4433 completions,
4434 matches,
4435 editor,
4436 cx,
4437 )
4438 });
4439 })
4440 .ok();
4441 Some(menu)
4442 }
4443 } else {
4444 None
4445 };
4446
4447 this.update(&mut cx, |this, cx| {
4448 let mut context_menu = this.context_menu.write();
4449 match context_menu.as_ref() {
4450 None => {}
4451
4452 Some(ContextMenu::Completions(prev_menu)) => {
4453 if prev_menu.id > id {
4454 return;
4455 }
4456 }
4457
4458 _ => return,
4459 }
4460
4461 if this.focus_handle.is_focused(cx) && menu.is_some() {
4462 let menu = menu.unwrap();
4463 *context_menu = Some(ContextMenu::Completions(menu));
4464 drop(context_menu);
4465 this.discard_inline_completion(false, cx);
4466 cx.notify();
4467 } else if this.completion_tasks.len() <= 1 {
4468 // If there are no more completion tasks and the last menu was
4469 // empty, we should hide it. If it was already hidden, we should
4470 // also show the copilot completion when available.
4471 drop(context_menu);
4472 if this.hide_context_menu(cx).is_none() {
4473 this.update_visible_inline_completion(cx);
4474 }
4475 }
4476 })?;
4477
4478 Ok::<_, anyhow::Error>(())
4479 }
4480 .log_err()
4481 });
4482
4483 self.completion_tasks.push((id, task));
4484 }
4485
4486 pub fn confirm_completion(
4487 &mut self,
4488 action: &ConfirmCompletion,
4489 cx: &mut ViewContext<Self>,
4490 ) -> Option<Task<Result<()>>> {
4491 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4492 }
4493
4494 pub fn compose_completion(
4495 &mut self,
4496 action: &ComposeCompletion,
4497 cx: &mut ViewContext<Self>,
4498 ) -> Option<Task<Result<()>>> {
4499 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4500 }
4501
4502 fn do_completion(
4503 &mut self,
4504 item_ix: Option<usize>,
4505 intent: CompletionIntent,
4506 cx: &mut ViewContext<Editor>,
4507 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4508 use language::ToOffset as _;
4509
4510 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4511 menu
4512 } else {
4513 return None;
4514 };
4515
4516 let mat = completions_menu
4517 .matches
4518 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4519 let buffer_handle = completions_menu.buffer;
4520 let completions = completions_menu.completions.read();
4521 let completion = completions.get(mat.candidate_id)?;
4522 cx.stop_propagation();
4523
4524 let snippet;
4525 let text;
4526
4527 if completion.is_snippet() {
4528 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4529 text = snippet.as_ref().unwrap().text.clone();
4530 } else {
4531 snippet = None;
4532 text = completion.new_text.clone();
4533 };
4534 let selections = self.selections.all::<usize>(cx);
4535 let buffer = buffer_handle.read(cx);
4536 let old_range = completion.old_range.to_offset(buffer);
4537 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4538
4539 let newest_selection = self.selections.newest_anchor();
4540 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4541 return None;
4542 }
4543
4544 let lookbehind = newest_selection
4545 .start
4546 .text_anchor
4547 .to_offset(buffer)
4548 .saturating_sub(old_range.start);
4549 let lookahead = old_range
4550 .end
4551 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4552 let mut common_prefix_len = old_text
4553 .bytes()
4554 .zip(text.bytes())
4555 .take_while(|(a, b)| a == b)
4556 .count();
4557
4558 let snapshot = self.buffer.read(cx).snapshot(cx);
4559 let mut range_to_replace: Option<Range<isize>> = None;
4560 let mut ranges = Vec::new();
4561 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4562 for selection in &selections {
4563 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4564 let start = selection.start.saturating_sub(lookbehind);
4565 let end = selection.end + lookahead;
4566 if selection.id == newest_selection.id {
4567 range_to_replace = Some(
4568 ((start + common_prefix_len) as isize - selection.start as isize)
4569 ..(end as isize - selection.start as isize),
4570 );
4571 }
4572 ranges.push(start + common_prefix_len..end);
4573 } else {
4574 common_prefix_len = 0;
4575 ranges.clear();
4576 ranges.extend(selections.iter().map(|s| {
4577 if s.id == newest_selection.id {
4578 range_to_replace = Some(
4579 old_range.start.to_offset_utf16(&snapshot).0 as isize
4580 - selection.start as isize
4581 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4582 - selection.start as isize,
4583 );
4584 old_range.clone()
4585 } else {
4586 s.start..s.end
4587 }
4588 }));
4589 break;
4590 }
4591 if !self.linked_edit_ranges.is_empty() {
4592 let start_anchor = snapshot.anchor_before(selection.head());
4593 let end_anchor = snapshot.anchor_after(selection.tail());
4594 if let Some(ranges) = self
4595 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4596 {
4597 for (buffer, edits) in ranges {
4598 linked_edits.entry(buffer.clone()).or_default().extend(
4599 edits
4600 .into_iter()
4601 .map(|range| (range, text[common_prefix_len..].to_owned())),
4602 );
4603 }
4604 }
4605 }
4606 }
4607 let text = &text[common_prefix_len..];
4608
4609 cx.emit(EditorEvent::InputHandled {
4610 utf16_range_to_replace: range_to_replace,
4611 text: text.into(),
4612 });
4613
4614 self.transact(cx, |this, cx| {
4615 if let Some(mut snippet) = snippet {
4616 snippet.text = text.to_string();
4617 for tabstop in snippet.tabstops.iter_mut().flatten() {
4618 tabstop.start -= common_prefix_len as isize;
4619 tabstop.end -= common_prefix_len as isize;
4620 }
4621
4622 this.insert_snippet(&ranges, snippet, cx).log_err();
4623 } else {
4624 this.buffer.update(cx, |buffer, cx| {
4625 buffer.edit(
4626 ranges.iter().map(|range| (range.clone(), text)),
4627 this.autoindent_mode.clone(),
4628 cx,
4629 );
4630 });
4631 }
4632 for (buffer, edits) in linked_edits {
4633 buffer.update(cx, |buffer, cx| {
4634 let snapshot = buffer.snapshot();
4635 let edits = edits
4636 .into_iter()
4637 .map(|(range, text)| {
4638 use text::ToPoint as TP;
4639 let end_point = TP::to_point(&range.end, &snapshot);
4640 let start_point = TP::to_point(&range.start, &snapshot);
4641 (start_point..end_point, text)
4642 })
4643 .sorted_by_key(|(range, _)| range.start)
4644 .collect::<Vec<_>>();
4645 buffer.edit(edits, None, cx);
4646 })
4647 }
4648
4649 this.refresh_inline_completion(true, false, cx);
4650 });
4651
4652 let show_new_completions_on_confirm = completion
4653 .confirm
4654 .as_ref()
4655 .map_or(false, |confirm| confirm(intent, cx));
4656 if show_new_completions_on_confirm {
4657 self.show_completions(&ShowCompletions { trigger: None }, cx);
4658 }
4659
4660 let provider = self.completion_provider.as_ref()?;
4661 let apply_edits = provider.apply_additional_edits_for_completion(
4662 buffer_handle,
4663 completion.clone(),
4664 true,
4665 cx,
4666 );
4667
4668 let editor_settings = EditorSettings::get_global(cx);
4669 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4670 // After the code completion is finished, users often want to know what signatures are needed.
4671 // so we should automatically call signature_help
4672 self.show_signature_help(&ShowSignatureHelp, cx);
4673 }
4674
4675 Some(cx.foreground_executor().spawn(async move {
4676 apply_edits.await?;
4677 Ok(())
4678 }))
4679 }
4680
4681 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4682 let mut context_menu = self.context_menu.write();
4683 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4684 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4685 // Toggle if we're selecting the same one
4686 *context_menu = None;
4687 cx.notify();
4688 return;
4689 } else {
4690 // Otherwise, clear it and start a new one
4691 *context_menu = None;
4692 cx.notify();
4693 }
4694 }
4695 drop(context_menu);
4696 let snapshot = self.snapshot(cx);
4697 let deployed_from_indicator = action.deployed_from_indicator;
4698 let mut task = self.code_actions_task.take();
4699 let action = action.clone();
4700 cx.spawn(|editor, mut cx| async move {
4701 while let Some(prev_task) = task {
4702 prev_task.await.log_err();
4703 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4704 }
4705
4706 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4707 if editor.focus_handle.is_focused(cx) {
4708 let multibuffer_point = action
4709 .deployed_from_indicator
4710 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4711 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4712 let (buffer, buffer_row) = snapshot
4713 .buffer_snapshot
4714 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4715 .and_then(|(buffer_snapshot, range)| {
4716 editor
4717 .buffer
4718 .read(cx)
4719 .buffer(buffer_snapshot.remote_id())
4720 .map(|buffer| (buffer, range.start.row))
4721 })?;
4722 let (_, code_actions) = editor
4723 .available_code_actions
4724 .clone()
4725 .and_then(|(location, code_actions)| {
4726 let snapshot = location.buffer.read(cx).snapshot();
4727 let point_range = location.range.to_point(&snapshot);
4728 let point_range = point_range.start.row..=point_range.end.row;
4729 if point_range.contains(&buffer_row) {
4730 Some((location, code_actions))
4731 } else {
4732 None
4733 }
4734 })
4735 .unzip();
4736 let buffer_id = buffer.read(cx).remote_id();
4737 let tasks = editor
4738 .tasks
4739 .get(&(buffer_id, buffer_row))
4740 .map(|t| Arc::new(t.to_owned()));
4741 if tasks.is_none() && code_actions.is_none() {
4742 return None;
4743 }
4744
4745 editor.completion_tasks.clear();
4746 editor.discard_inline_completion(false, cx);
4747 let task_context =
4748 tasks
4749 .as_ref()
4750 .zip(editor.project.clone())
4751 .map(|(tasks, project)| {
4752 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4753 });
4754
4755 Some(cx.spawn(|editor, mut cx| async move {
4756 let task_context = match task_context {
4757 Some(task_context) => task_context.await,
4758 None => None,
4759 };
4760 let resolved_tasks =
4761 tasks.zip(task_context).map(|(tasks, task_context)| {
4762 Arc::new(ResolvedTasks {
4763 templates: tasks.resolve(&task_context).collect(),
4764 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4765 multibuffer_point.row,
4766 tasks.column,
4767 )),
4768 })
4769 });
4770 let spawn_straight_away = resolved_tasks
4771 .as_ref()
4772 .map_or(false, |tasks| tasks.templates.len() == 1)
4773 && code_actions
4774 .as_ref()
4775 .map_or(true, |actions| actions.is_empty());
4776 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4777 *editor.context_menu.write() =
4778 Some(ContextMenu::CodeActions(CodeActionsMenu {
4779 buffer,
4780 actions: CodeActionContents {
4781 tasks: resolved_tasks,
4782 actions: code_actions,
4783 },
4784 selected_item: Default::default(),
4785 scroll_handle: UniformListScrollHandle::default(),
4786 deployed_from_indicator,
4787 }));
4788 if spawn_straight_away {
4789 if let Some(task) = editor.confirm_code_action(
4790 &ConfirmCodeAction { item_ix: Some(0) },
4791 cx,
4792 ) {
4793 cx.notify();
4794 return task;
4795 }
4796 }
4797 cx.notify();
4798 Task::ready(Ok(()))
4799 }) {
4800 task.await
4801 } else {
4802 Ok(())
4803 }
4804 }))
4805 } else {
4806 Some(Task::ready(Ok(())))
4807 }
4808 })?;
4809 if let Some(task) = spawned_test_task {
4810 task.await?;
4811 }
4812
4813 Ok::<_, anyhow::Error>(())
4814 })
4815 .detach_and_log_err(cx);
4816 }
4817
4818 pub fn confirm_code_action(
4819 &mut self,
4820 action: &ConfirmCodeAction,
4821 cx: &mut ViewContext<Self>,
4822 ) -> Option<Task<Result<()>>> {
4823 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4824 menu
4825 } else {
4826 return None;
4827 };
4828 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4829 let action = actions_menu.actions.get(action_ix)?;
4830 let title = action.label();
4831 let buffer = actions_menu.buffer;
4832 let workspace = self.workspace()?;
4833
4834 match action {
4835 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4836 workspace.update(cx, |workspace, cx| {
4837 workspace::tasks::schedule_resolved_task(
4838 workspace,
4839 task_source_kind,
4840 resolved_task,
4841 false,
4842 cx,
4843 );
4844
4845 Some(Task::ready(Ok(())))
4846 })
4847 }
4848 CodeActionsItem::CodeAction {
4849 excerpt_id,
4850 action,
4851 provider,
4852 } => {
4853 let apply_code_action =
4854 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4855 let workspace = workspace.downgrade();
4856 Some(cx.spawn(|editor, cx| async move {
4857 let project_transaction = apply_code_action.await?;
4858 Self::open_project_transaction(
4859 &editor,
4860 workspace,
4861 project_transaction,
4862 title,
4863 cx,
4864 )
4865 .await
4866 }))
4867 }
4868 }
4869 }
4870
4871 pub async fn open_project_transaction(
4872 this: &WeakView<Editor>,
4873 workspace: WeakView<Workspace>,
4874 transaction: ProjectTransaction,
4875 title: String,
4876 mut cx: AsyncWindowContext,
4877 ) -> Result<()> {
4878 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4879 cx.update(|cx| {
4880 entries.sort_unstable_by_key(|(buffer, _)| {
4881 buffer.read(cx).file().map(|f| f.path().clone())
4882 });
4883 })?;
4884
4885 // If the project transaction's edits are all contained within this editor, then
4886 // avoid opening a new editor to display them.
4887
4888 if let Some((buffer, transaction)) = entries.first() {
4889 if entries.len() == 1 {
4890 let excerpt = this.update(&mut cx, |editor, cx| {
4891 editor
4892 .buffer()
4893 .read(cx)
4894 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4895 })?;
4896 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4897 if excerpted_buffer == *buffer {
4898 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4899 let excerpt_range = excerpt_range.to_offset(buffer);
4900 buffer
4901 .edited_ranges_for_transaction::<usize>(transaction)
4902 .all(|range| {
4903 excerpt_range.start <= range.start
4904 && excerpt_range.end >= range.end
4905 })
4906 })?;
4907
4908 if all_edits_within_excerpt {
4909 return Ok(());
4910 }
4911 }
4912 }
4913 }
4914 } else {
4915 return Ok(());
4916 }
4917
4918 let mut ranges_to_highlight = Vec::new();
4919 let excerpt_buffer = cx.new_model(|cx| {
4920 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4921 for (buffer_handle, transaction) in &entries {
4922 let buffer = buffer_handle.read(cx);
4923 ranges_to_highlight.extend(
4924 multibuffer.push_excerpts_with_context_lines(
4925 buffer_handle.clone(),
4926 buffer
4927 .edited_ranges_for_transaction::<usize>(transaction)
4928 .collect(),
4929 DEFAULT_MULTIBUFFER_CONTEXT,
4930 cx,
4931 ),
4932 );
4933 }
4934 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4935 multibuffer
4936 })?;
4937
4938 workspace.update(&mut cx, |workspace, cx| {
4939 let project = workspace.project().clone();
4940 let editor =
4941 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4942 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4943 editor.update(cx, |editor, cx| {
4944 editor.highlight_background::<Self>(
4945 &ranges_to_highlight,
4946 |theme| theme.editor_highlighted_line_background,
4947 cx,
4948 );
4949 });
4950 })?;
4951
4952 Ok(())
4953 }
4954
4955 pub fn clear_code_action_providers(&mut self) {
4956 self.code_action_providers.clear();
4957 self.available_code_actions.take();
4958 }
4959
4960 pub fn push_code_action_provider(
4961 &mut self,
4962 provider: Arc<dyn CodeActionProvider>,
4963 cx: &mut ViewContext<Self>,
4964 ) {
4965 self.code_action_providers.push(provider);
4966 self.refresh_code_actions(cx);
4967 }
4968
4969 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4970 let buffer = self.buffer.read(cx);
4971 let newest_selection = self.selections.newest_anchor().clone();
4972 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4973 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4974 if start_buffer != end_buffer {
4975 return None;
4976 }
4977
4978 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4979 cx.background_executor()
4980 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4981 .await;
4982
4983 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4984 let providers = this.code_action_providers.clone();
4985 let tasks = this
4986 .code_action_providers
4987 .iter()
4988 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4989 .collect::<Vec<_>>();
4990 (providers, tasks)
4991 })?;
4992
4993 let mut actions = Vec::new();
4994 for (provider, provider_actions) in
4995 providers.into_iter().zip(future::join_all(tasks).await)
4996 {
4997 if let Some(provider_actions) = provider_actions.log_err() {
4998 actions.extend(provider_actions.into_iter().map(|action| {
4999 AvailableCodeAction {
5000 excerpt_id: newest_selection.start.excerpt_id,
5001 action,
5002 provider: provider.clone(),
5003 }
5004 }));
5005 }
5006 }
5007
5008 this.update(&mut cx, |this, cx| {
5009 this.available_code_actions = if actions.is_empty() {
5010 None
5011 } else {
5012 Some((
5013 Location {
5014 buffer: start_buffer,
5015 range: start..end,
5016 },
5017 actions.into(),
5018 ))
5019 };
5020 cx.notify();
5021 })
5022 }));
5023 None
5024 }
5025
5026 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5027 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5028 self.show_git_blame_inline = false;
5029
5030 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5031 cx.background_executor().timer(delay).await;
5032
5033 this.update(&mut cx, |this, cx| {
5034 this.show_git_blame_inline = true;
5035 cx.notify();
5036 })
5037 .log_err();
5038 }));
5039 }
5040 }
5041
5042 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5043 if self.pending_rename.is_some() {
5044 return None;
5045 }
5046
5047 let provider = self.semantics_provider.clone()?;
5048 let buffer = self.buffer.read(cx);
5049 let newest_selection = self.selections.newest_anchor().clone();
5050 let cursor_position = newest_selection.head();
5051 let (cursor_buffer, cursor_buffer_position) =
5052 buffer.text_anchor_for_position(cursor_position, cx)?;
5053 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5054 if cursor_buffer != tail_buffer {
5055 return None;
5056 }
5057
5058 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5059 cx.background_executor()
5060 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5061 .await;
5062
5063 let highlights = if let Some(highlights) = cx
5064 .update(|cx| {
5065 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5066 })
5067 .ok()
5068 .flatten()
5069 {
5070 highlights.await.log_err()
5071 } else {
5072 None
5073 };
5074
5075 if let Some(highlights) = highlights {
5076 this.update(&mut cx, |this, cx| {
5077 if this.pending_rename.is_some() {
5078 return;
5079 }
5080
5081 let buffer_id = cursor_position.buffer_id;
5082 let buffer = this.buffer.read(cx);
5083 if !buffer
5084 .text_anchor_for_position(cursor_position, cx)
5085 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5086 {
5087 return;
5088 }
5089
5090 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5091 let mut write_ranges = Vec::new();
5092 let mut read_ranges = Vec::new();
5093 for highlight in highlights {
5094 for (excerpt_id, excerpt_range) in
5095 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5096 {
5097 let start = highlight
5098 .range
5099 .start
5100 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5101 let end = highlight
5102 .range
5103 .end
5104 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5105 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5106 continue;
5107 }
5108
5109 let range = Anchor {
5110 buffer_id,
5111 excerpt_id,
5112 text_anchor: start,
5113 }..Anchor {
5114 buffer_id,
5115 excerpt_id,
5116 text_anchor: end,
5117 };
5118 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5119 write_ranges.push(range);
5120 } else {
5121 read_ranges.push(range);
5122 }
5123 }
5124 }
5125
5126 this.highlight_background::<DocumentHighlightRead>(
5127 &read_ranges,
5128 |theme| theme.editor_document_highlight_read_background,
5129 cx,
5130 );
5131 this.highlight_background::<DocumentHighlightWrite>(
5132 &write_ranges,
5133 |theme| theme.editor_document_highlight_write_background,
5134 cx,
5135 );
5136 cx.notify();
5137 })
5138 .log_err();
5139 }
5140 }));
5141 None
5142 }
5143
5144 pub fn refresh_inline_completion(
5145 &mut self,
5146 debounce: bool,
5147 user_requested: bool,
5148 cx: &mut ViewContext<Self>,
5149 ) -> Option<()> {
5150 let provider = self.inline_completion_provider()?;
5151 let cursor = self.selections.newest_anchor().head();
5152 let (buffer, cursor_buffer_position) =
5153 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5154
5155 if !user_requested
5156 && (!self.enable_inline_completions
5157 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5158 {
5159 self.discard_inline_completion(false, cx);
5160 return None;
5161 }
5162
5163 self.update_visible_inline_completion(cx);
5164 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5165 Some(())
5166 }
5167
5168 fn cycle_inline_completion(
5169 &mut self,
5170 direction: Direction,
5171 cx: &mut ViewContext<Self>,
5172 ) -> Option<()> {
5173 let provider = self.inline_completion_provider()?;
5174 let cursor = self.selections.newest_anchor().head();
5175 let (buffer, cursor_buffer_position) =
5176 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5177 if !self.enable_inline_completions
5178 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5179 {
5180 return None;
5181 }
5182
5183 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5184 self.update_visible_inline_completion(cx);
5185
5186 Some(())
5187 }
5188
5189 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5190 if !self.has_active_inline_completion(cx) {
5191 self.refresh_inline_completion(false, true, cx);
5192 return;
5193 }
5194
5195 self.update_visible_inline_completion(cx);
5196 }
5197
5198 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5199 self.show_cursor_names(cx);
5200 }
5201
5202 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5203 self.show_cursor_names = true;
5204 cx.notify();
5205 cx.spawn(|this, mut cx| async move {
5206 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5207 this.update(&mut cx, |this, cx| {
5208 this.show_cursor_names = false;
5209 cx.notify()
5210 })
5211 .ok()
5212 })
5213 .detach();
5214 }
5215
5216 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5217 if self.has_active_inline_completion(cx) {
5218 self.cycle_inline_completion(Direction::Next, cx);
5219 } else {
5220 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5221 if is_copilot_disabled {
5222 cx.propagate();
5223 }
5224 }
5225 }
5226
5227 pub fn previous_inline_completion(
5228 &mut self,
5229 _: &PreviousInlineCompletion,
5230 cx: &mut ViewContext<Self>,
5231 ) {
5232 if self.has_active_inline_completion(cx) {
5233 self.cycle_inline_completion(Direction::Prev, cx);
5234 } else {
5235 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5236 if is_copilot_disabled {
5237 cx.propagate();
5238 }
5239 }
5240 }
5241
5242 pub fn accept_inline_completion(
5243 &mut self,
5244 _: &AcceptInlineCompletion,
5245 cx: &mut ViewContext<Self>,
5246 ) {
5247 let Some(completion) = self.take_active_inline_completion(cx) else {
5248 return;
5249 };
5250 if let Some(provider) = self.inline_completion_provider() {
5251 provider.accept(cx);
5252 }
5253
5254 cx.emit(EditorEvent::InputHandled {
5255 utf16_range_to_replace: None,
5256 text: completion.text.to_string().into(),
5257 });
5258
5259 if let Some(range) = completion.delete_range {
5260 self.change_selections(None, cx, |s| s.select_ranges([range]))
5261 }
5262 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5263 self.refresh_inline_completion(true, true, cx);
5264 cx.notify();
5265 }
5266
5267 pub fn accept_partial_inline_completion(
5268 &mut self,
5269 _: &AcceptPartialInlineCompletion,
5270 cx: &mut ViewContext<Self>,
5271 ) {
5272 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5273 if let Some(completion) = self.take_active_inline_completion(cx) {
5274 let mut partial_completion = completion
5275 .text
5276 .chars()
5277 .by_ref()
5278 .take_while(|c| c.is_alphabetic())
5279 .collect::<String>();
5280 if partial_completion.is_empty() {
5281 partial_completion = completion
5282 .text
5283 .chars()
5284 .by_ref()
5285 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5286 .collect::<String>();
5287 }
5288
5289 cx.emit(EditorEvent::InputHandled {
5290 utf16_range_to_replace: None,
5291 text: partial_completion.clone().into(),
5292 });
5293
5294 if let Some(range) = completion.delete_range {
5295 self.change_selections(None, cx, |s| s.select_ranges([range]))
5296 }
5297 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5298
5299 self.refresh_inline_completion(true, true, cx);
5300 cx.notify();
5301 }
5302 }
5303 }
5304
5305 fn discard_inline_completion(
5306 &mut self,
5307 should_report_inline_completion_event: bool,
5308 cx: &mut ViewContext<Self>,
5309 ) -> bool {
5310 if let Some(provider) = self.inline_completion_provider() {
5311 provider.discard(should_report_inline_completion_event, cx);
5312 }
5313
5314 self.take_active_inline_completion(cx).is_some()
5315 }
5316
5317 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5318 if let Some(completion) = self.active_inline_completion.as_ref() {
5319 let buffer = self.buffer.read(cx).read(cx);
5320 completion.position.is_valid(&buffer)
5321 } else {
5322 false
5323 }
5324 }
5325
5326 fn take_active_inline_completion(
5327 &mut self,
5328 cx: &mut ViewContext<Self>,
5329 ) -> Option<CompletionState> {
5330 let completion = self.active_inline_completion.take()?;
5331 let render_inlay_ids = completion.render_inlay_ids.clone();
5332 self.display_map.update(cx, |map, cx| {
5333 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5334 });
5335 let buffer = self.buffer.read(cx).read(cx);
5336
5337 if completion.position.is_valid(&buffer) {
5338 Some(completion)
5339 } else {
5340 None
5341 }
5342 }
5343
5344 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5345 let selection = self.selections.newest_anchor();
5346 let cursor = selection.head();
5347
5348 let excerpt_id = cursor.excerpt_id;
5349
5350 if self.context_menu.read().is_none()
5351 && self.completion_tasks.is_empty()
5352 && selection.start == selection.end
5353 {
5354 if let Some(provider) = self.inline_completion_provider() {
5355 if let Some((buffer, cursor_buffer_position)) =
5356 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5357 {
5358 if let Some(proposal) =
5359 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5360 {
5361 let mut to_remove = Vec::new();
5362 if let Some(completion) = self.active_inline_completion.take() {
5363 to_remove.extend(completion.render_inlay_ids.iter());
5364 }
5365
5366 let to_add = proposal
5367 .inlays
5368 .iter()
5369 .filter_map(|inlay| {
5370 let snapshot = self.buffer.read(cx).snapshot(cx);
5371 let id = post_inc(&mut self.next_inlay_id);
5372 match inlay {
5373 InlayProposal::Hint(position, hint) => {
5374 let position =
5375 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5376 Some(Inlay::hint(id, position, hint))
5377 }
5378 InlayProposal::Suggestion(position, text) => {
5379 let position =
5380 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5381 Some(Inlay::suggestion(id, position, text.clone()))
5382 }
5383 }
5384 })
5385 .collect_vec();
5386
5387 self.active_inline_completion = Some(CompletionState {
5388 position: cursor,
5389 text: proposal.text,
5390 delete_range: proposal.delete_range.and_then(|range| {
5391 let snapshot = self.buffer.read(cx).snapshot(cx);
5392 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5393 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5394 Some(start?..end?)
5395 }),
5396 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5397 });
5398
5399 self.display_map
5400 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5401
5402 cx.notify();
5403 return;
5404 }
5405 }
5406 }
5407 }
5408
5409 self.discard_inline_completion(false, cx);
5410 }
5411
5412 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5413 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5414 }
5415
5416 fn render_code_actions_indicator(
5417 &self,
5418 _style: &EditorStyle,
5419 row: DisplayRow,
5420 is_active: bool,
5421 cx: &mut ViewContext<Self>,
5422 ) -> Option<IconButton> {
5423 if self.available_code_actions.is_some() {
5424 Some(
5425 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5426 .shape(ui::IconButtonShape::Square)
5427 .icon_size(IconSize::XSmall)
5428 .icon_color(Color::Muted)
5429 .selected(is_active)
5430 .tooltip({
5431 let focus_handle = self.focus_handle.clone();
5432 move |cx| {
5433 Tooltip::for_action_in(
5434 "Toggle Code Actions",
5435 &ToggleCodeActions {
5436 deployed_from_indicator: None,
5437 },
5438 &focus_handle,
5439 cx,
5440 )
5441 }
5442 })
5443 .on_click(cx.listener(move |editor, _e, cx| {
5444 editor.focus(cx);
5445 editor.toggle_code_actions(
5446 &ToggleCodeActions {
5447 deployed_from_indicator: Some(row),
5448 },
5449 cx,
5450 );
5451 })),
5452 )
5453 } else {
5454 None
5455 }
5456 }
5457
5458 fn clear_tasks(&mut self) {
5459 self.tasks.clear()
5460 }
5461
5462 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5463 if self.tasks.insert(key, value).is_some() {
5464 // This case should hopefully be rare, but just in case...
5465 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5466 }
5467 }
5468
5469 fn build_tasks_context(
5470 project: &Model<Project>,
5471 buffer: &Model<Buffer>,
5472 buffer_row: u32,
5473 tasks: &Arc<RunnableTasks>,
5474 cx: &mut ViewContext<Self>,
5475 ) -> Task<Option<task::TaskContext>> {
5476 let position = Point::new(buffer_row, tasks.column);
5477 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5478 let location = Location {
5479 buffer: buffer.clone(),
5480 range: range_start..range_start,
5481 };
5482 // Fill in the environmental variables from the tree-sitter captures
5483 let mut captured_task_variables = TaskVariables::default();
5484 for (capture_name, value) in tasks.extra_variables.clone() {
5485 captured_task_variables.insert(
5486 task::VariableName::Custom(capture_name.into()),
5487 value.clone(),
5488 );
5489 }
5490 project.update(cx, |project, cx| {
5491 project.task_store().update(cx, |task_store, cx| {
5492 task_store.task_context_for_location(captured_task_variables, location, cx)
5493 })
5494 })
5495 }
5496
5497 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5498 let Some((workspace, _)) = self.workspace.clone() else {
5499 return;
5500 };
5501 let Some(project) = self.project.clone() else {
5502 return;
5503 };
5504
5505 // Try to find a closest, enclosing node using tree-sitter that has a
5506 // task
5507 let Some((buffer, buffer_row, tasks)) = self
5508 .find_enclosing_node_task(cx)
5509 // Or find the task that's closest in row-distance.
5510 .or_else(|| self.find_closest_task(cx))
5511 else {
5512 return;
5513 };
5514
5515 let reveal_strategy = action.reveal;
5516 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5517 cx.spawn(|_, mut cx| async move {
5518 let context = task_context.await?;
5519 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5520
5521 let resolved = resolved_task.resolved.as_mut()?;
5522 resolved.reveal = reveal_strategy;
5523
5524 workspace
5525 .update(&mut cx, |workspace, cx| {
5526 workspace::tasks::schedule_resolved_task(
5527 workspace,
5528 task_source_kind,
5529 resolved_task,
5530 false,
5531 cx,
5532 );
5533 })
5534 .ok()
5535 })
5536 .detach();
5537 }
5538
5539 fn find_closest_task(
5540 &mut self,
5541 cx: &mut ViewContext<Self>,
5542 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5543 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5544
5545 let ((buffer_id, row), tasks) = self
5546 .tasks
5547 .iter()
5548 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5549
5550 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5551 let tasks = Arc::new(tasks.to_owned());
5552 Some((buffer, *row, tasks))
5553 }
5554
5555 fn find_enclosing_node_task(
5556 &mut self,
5557 cx: &mut ViewContext<Self>,
5558 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5559 let snapshot = self.buffer.read(cx).snapshot(cx);
5560 let offset = self.selections.newest::<usize>(cx).head();
5561 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5562 let buffer_id = excerpt.buffer().remote_id();
5563
5564 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5565 let mut cursor = layer.node().walk();
5566
5567 while cursor.goto_first_child_for_byte(offset).is_some() {
5568 if cursor.node().end_byte() == offset {
5569 cursor.goto_next_sibling();
5570 }
5571 }
5572
5573 // Ascend to the smallest ancestor that contains the range and has a task.
5574 loop {
5575 let node = cursor.node();
5576 let node_range = node.byte_range();
5577 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5578
5579 // Check if this node contains our offset
5580 if node_range.start <= offset && node_range.end >= offset {
5581 // If it contains offset, check for task
5582 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5583 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5584 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5585 }
5586 }
5587
5588 if !cursor.goto_parent() {
5589 break;
5590 }
5591 }
5592 None
5593 }
5594
5595 fn render_run_indicator(
5596 &self,
5597 _style: &EditorStyle,
5598 is_active: bool,
5599 row: DisplayRow,
5600 cx: &mut ViewContext<Self>,
5601 ) -> IconButton {
5602 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5603 .shape(ui::IconButtonShape::Square)
5604 .icon_size(IconSize::XSmall)
5605 .icon_color(Color::Muted)
5606 .selected(is_active)
5607 .on_click(cx.listener(move |editor, _e, cx| {
5608 editor.focus(cx);
5609 editor.toggle_code_actions(
5610 &ToggleCodeActions {
5611 deployed_from_indicator: Some(row),
5612 },
5613 cx,
5614 );
5615 }))
5616 }
5617
5618 pub fn context_menu_visible(&self) -> bool {
5619 self.context_menu
5620 .read()
5621 .as_ref()
5622 .map_or(false, |menu| menu.visible())
5623 }
5624
5625 fn render_context_menu(
5626 &self,
5627 cursor_position: DisplayPoint,
5628 style: &EditorStyle,
5629 max_height: Pixels,
5630 cx: &mut ViewContext<Editor>,
5631 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5632 self.context_menu.read().as_ref().map(|menu| {
5633 menu.render(
5634 cursor_position,
5635 style,
5636 max_height,
5637 self.workspace.as_ref().map(|(w, _)| w.clone()),
5638 cx,
5639 )
5640 })
5641 }
5642
5643 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5644 cx.notify();
5645 self.completion_tasks.clear();
5646 let context_menu = self.context_menu.write().take();
5647 if context_menu.is_some() {
5648 self.update_visible_inline_completion(cx);
5649 }
5650 context_menu
5651 }
5652
5653 pub fn insert_snippet(
5654 &mut self,
5655 insertion_ranges: &[Range<usize>],
5656 snippet: Snippet,
5657 cx: &mut ViewContext<Self>,
5658 ) -> Result<()> {
5659 struct Tabstop<T> {
5660 is_end_tabstop: bool,
5661 ranges: Vec<Range<T>>,
5662 }
5663
5664 let tabstops = self.buffer.update(cx, |buffer, cx| {
5665 let snippet_text: Arc<str> = snippet.text.clone().into();
5666 buffer.edit(
5667 insertion_ranges
5668 .iter()
5669 .cloned()
5670 .map(|range| (range, snippet_text.clone())),
5671 Some(AutoindentMode::EachLine),
5672 cx,
5673 );
5674
5675 let snapshot = &*buffer.read(cx);
5676 let snippet = &snippet;
5677 snippet
5678 .tabstops
5679 .iter()
5680 .map(|tabstop| {
5681 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5682 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5683 });
5684 let mut tabstop_ranges = tabstop
5685 .iter()
5686 .flat_map(|tabstop_range| {
5687 let mut delta = 0_isize;
5688 insertion_ranges.iter().map(move |insertion_range| {
5689 let insertion_start = insertion_range.start as isize + delta;
5690 delta +=
5691 snippet.text.len() as isize - insertion_range.len() as isize;
5692
5693 let start = ((insertion_start + tabstop_range.start) as usize)
5694 .min(snapshot.len());
5695 let end = ((insertion_start + tabstop_range.end) as usize)
5696 .min(snapshot.len());
5697 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5698 })
5699 })
5700 .collect::<Vec<_>>();
5701 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5702
5703 Tabstop {
5704 is_end_tabstop,
5705 ranges: tabstop_ranges,
5706 }
5707 })
5708 .collect::<Vec<_>>()
5709 });
5710 if let Some(tabstop) = tabstops.first() {
5711 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5712 s.select_ranges(tabstop.ranges.iter().cloned());
5713 });
5714
5715 // If we're already at the last tabstop and it's at the end of the snippet,
5716 // we're done, we don't need to keep the state around.
5717 if !tabstop.is_end_tabstop {
5718 let ranges = tabstops
5719 .into_iter()
5720 .map(|tabstop| tabstop.ranges)
5721 .collect::<Vec<_>>();
5722 self.snippet_stack.push(SnippetState {
5723 active_index: 0,
5724 ranges,
5725 });
5726 }
5727
5728 // Check whether the just-entered snippet ends with an auto-closable bracket.
5729 if self.autoclose_regions.is_empty() {
5730 let snapshot = self.buffer.read(cx).snapshot(cx);
5731 for selection in &mut self.selections.all::<Point>(cx) {
5732 let selection_head = selection.head();
5733 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5734 continue;
5735 };
5736
5737 let mut bracket_pair = None;
5738 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5739 let prev_chars = snapshot
5740 .reversed_chars_at(selection_head)
5741 .collect::<String>();
5742 for (pair, enabled) in scope.brackets() {
5743 if enabled
5744 && pair.close
5745 && prev_chars.starts_with(pair.start.as_str())
5746 && next_chars.starts_with(pair.end.as_str())
5747 {
5748 bracket_pair = Some(pair.clone());
5749 break;
5750 }
5751 }
5752 if let Some(pair) = bracket_pair {
5753 let start = snapshot.anchor_after(selection_head);
5754 let end = snapshot.anchor_after(selection_head);
5755 self.autoclose_regions.push(AutocloseRegion {
5756 selection_id: selection.id,
5757 range: start..end,
5758 pair,
5759 });
5760 }
5761 }
5762 }
5763 }
5764 Ok(())
5765 }
5766
5767 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5768 self.move_to_snippet_tabstop(Bias::Right, cx)
5769 }
5770
5771 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5772 self.move_to_snippet_tabstop(Bias::Left, cx)
5773 }
5774
5775 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5776 if let Some(mut snippet) = self.snippet_stack.pop() {
5777 match bias {
5778 Bias::Left => {
5779 if snippet.active_index > 0 {
5780 snippet.active_index -= 1;
5781 } else {
5782 self.snippet_stack.push(snippet);
5783 return false;
5784 }
5785 }
5786 Bias::Right => {
5787 if snippet.active_index + 1 < snippet.ranges.len() {
5788 snippet.active_index += 1;
5789 } else {
5790 self.snippet_stack.push(snippet);
5791 return false;
5792 }
5793 }
5794 }
5795 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5796 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5797 s.select_anchor_ranges(current_ranges.iter().cloned())
5798 });
5799 // If snippet state is not at the last tabstop, push it back on the stack
5800 if snippet.active_index + 1 < snippet.ranges.len() {
5801 self.snippet_stack.push(snippet);
5802 }
5803 return true;
5804 }
5805 }
5806
5807 false
5808 }
5809
5810 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5811 self.transact(cx, |this, cx| {
5812 this.select_all(&SelectAll, cx);
5813 this.insert("", cx);
5814 });
5815 }
5816
5817 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5818 self.transact(cx, |this, cx| {
5819 this.select_autoclose_pair(cx);
5820 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5821 if !this.linked_edit_ranges.is_empty() {
5822 let selections = this.selections.all::<MultiBufferPoint>(cx);
5823 let snapshot = this.buffer.read(cx).snapshot(cx);
5824
5825 for selection in selections.iter() {
5826 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5827 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5828 if selection_start.buffer_id != selection_end.buffer_id {
5829 continue;
5830 }
5831 if let Some(ranges) =
5832 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5833 {
5834 for (buffer, entries) in ranges {
5835 linked_ranges.entry(buffer).or_default().extend(entries);
5836 }
5837 }
5838 }
5839 }
5840
5841 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5842 if !this.selections.line_mode {
5843 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5844 for selection in &mut selections {
5845 if selection.is_empty() {
5846 let old_head = selection.head();
5847 let mut new_head =
5848 movement::left(&display_map, old_head.to_display_point(&display_map))
5849 .to_point(&display_map);
5850 if let Some((buffer, line_buffer_range)) = display_map
5851 .buffer_snapshot
5852 .buffer_line_for_row(MultiBufferRow(old_head.row))
5853 {
5854 let indent_size =
5855 buffer.indent_size_for_line(line_buffer_range.start.row);
5856 let indent_len = match indent_size.kind {
5857 IndentKind::Space => {
5858 buffer.settings_at(line_buffer_range.start, cx).tab_size
5859 }
5860 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5861 };
5862 if old_head.column <= indent_size.len && old_head.column > 0 {
5863 let indent_len = indent_len.get();
5864 new_head = cmp::min(
5865 new_head,
5866 MultiBufferPoint::new(
5867 old_head.row,
5868 ((old_head.column - 1) / indent_len) * indent_len,
5869 ),
5870 );
5871 }
5872 }
5873
5874 selection.set_head(new_head, SelectionGoal::None);
5875 }
5876 }
5877 }
5878
5879 this.signature_help_state.set_backspace_pressed(true);
5880 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5881 this.insert("", cx);
5882 let empty_str: Arc<str> = Arc::from("");
5883 for (buffer, edits) in linked_ranges {
5884 let snapshot = buffer.read(cx).snapshot();
5885 use text::ToPoint as TP;
5886
5887 let edits = edits
5888 .into_iter()
5889 .map(|range| {
5890 let end_point = TP::to_point(&range.end, &snapshot);
5891 let mut start_point = TP::to_point(&range.start, &snapshot);
5892
5893 if end_point == start_point {
5894 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5895 .saturating_sub(1);
5896 start_point = TP::to_point(&offset, &snapshot);
5897 };
5898
5899 (start_point..end_point, empty_str.clone())
5900 })
5901 .sorted_by_key(|(range, _)| range.start)
5902 .collect::<Vec<_>>();
5903 buffer.update(cx, |this, cx| {
5904 this.edit(edits, None, cx);
5905 })
5906 }
5907 this.refresh_inline_completion(true, false, cx);
5908 linked_editing_ranges::refresh_linked_ranges(this, cx);
5909 });
5910 }
5911
5912 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5913 self.transact(cx, |this, cx| {
5914 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5915 let line_mode = s.line_mode;
5916 s.move_with(|map, selection| {
5917 if selection.is_empty() && !line_mode {
5918 let cursor = movement::right(map, selection.head());
5919 selection.end = cursor;
5920 selection.reversed = true;
5921 selection.goal = SelectionGoal::None;
5922 }
5923 })
5924 });
5925 this.insert("", cx);
5926 this.refresh_inline_completion(true, false, cx);
5927 });
5928 }
5929
5930 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5931 if self.move_to_prev_snippet_tabstop(cx) {
5932 return;
5933 }
5934
5935 self.outdent(&Outdent, cx);
5936 }
5937
5938 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5939 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5940 return;
5941 }
5942
5943 let mut selections = self.selections.all_adjusted(cx);
5944 let buffer = self.buffer.read(cx);
5945 let snapshot = buffer.snapshot(cx);
5946 let rows_iter = selections.iter().map(|s| s.head().row);
5947 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5948
5949 let mut edits = Vec::new();
5950 let mut prev_edited_row = 0;
5951 let mut row_delta = 0;
5952 for selection in &mut selections {
5953 if selection.start.row != prev_edited_row {
5954 row_delta = 0;
5955 }
5956 prev_edited_row = selection.end.row;
5957
5958 // If the selection is non-empty, then increase the indentation of the selected lines.
5959 if !selection.is_empty() {
5960 row_delta =
5961 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5962 continue;
5963 }
5964
5965 // If the selection is empty and the cursor is in the leading whitespace before the
5966 // suggested indentation, then auto-indent the line.
5967 let cursor = selection.head();
5968 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5969 if let Some(suggested_indent) =
5970 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5971 {
5972 if cursor.column < suggested_indent.len
5973 && cursor.column <= current_indent.len
5974 && current_indent.len <= suggested_indent.len
5975 {
5976 selection.start = Point::new(cursor.row, suggested_indent.len);
5977 selection.end = selection.start;
5978 if row_delta == 0 {
5979 edits.extend(Buffer::edit_for_indent_size_adjustment(
5980 cursor.row,
5981 current_indent,
5982 suggested_indent,
5983 ));
5984 row_delta = suggested_indent.len - current_indent.len;
5985 }
5986 continue;
5987 }
5988 }
5989
5990 // Otherwise, insert a hard or soft tab.
5991 let settings = buffer.settings_at(cursor, cx);
5992 let tab_size = if settings.hard_tabs {
5993 IndentSize::tab()
5994 } else {
5995 let tab_size = settings.tab_size.get();
5996 let char_column = snapshot
5997 .text_for_range(Point::new(cursor.row, 0)..cursor)
5998 .flat_map(str::chars)
5999 .count()
6000 + row_delta as usize;
6001 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
6002 IndentSize::spaces(chars_to_next_tab_stop)
6003 };
6004 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
6005 selection.end = selection.start;
6006 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
6007 row_delta += tab_size.len;
6008 }
6009
6010 self.transact(cx, |this, cx| {
6011 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6012 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6013 this.refresh_inline_completion(true, false, cx);
6014 });
6015 }
6016
6017 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
6018 if self.read_only(cx) {
6019 return;
6020 }
6021 let mut selections = self.selections.all::<Point>(cx);
6022 let mut prev_edited_row = 0;
6023 let mut row_delta = 0;
6024 let mut edits = Vec::new();
6025 let buffer = self.buffer.read(cx);
6026 let snapshot = buffer.snapshot(cx);
6027 for selection in &mut selections {
6028 if selection.start.row != prev_edited_row {
6029 row_delta = 0;
6030 }
6031 prev_edited_row = selection.end.row;
6032
6033 row_delta =
6034 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6035 }
6036
6037 self.transact(cx, |this, cx| {
6038 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6039 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6040 });
6041 }
6042
6043 fn indent_selection(
6044 buffer: &MultiBuffer,
6045 snapshot: &MultiBufferSnapshot,
6046 selection: &mut Selection<Point>,
6047 edits: &mut Vec<(Range<Point>, String)>,
6048 delta_for_start_row: u32,
6049 cx: &AppContext,
6050 ) -> u32 {
6051 let settings = buffer.settings_at(selection.start, cx);
6052 let tab_size = settings.tab_size.get();
6053 let indent_kind = if settings.hard_tabs {
6054 IndentKind::Tab
6055 } else {
6056 IndentKind::Space
6057 };
6058 let mut start_row = selection.start.row;
6059 let mut end_row = selection.end.row + 1;
6060
6061 // If a selection ends at the beginning of a line, don't indent
6062 // that last line.
6063 if selection.end.column == 0 && selection.end.row > selection.start.row {
6064 end_row -= 1;
6065 }
6066
6067 // Avoid re-indenting a row that has already been indented by a
6068 // previous selection, but still update this selection's column
6069 // to reflect that indentation.
6070 if delta_for_start_row > 0 {
6071 start_row += 1;
6072 selection.start.column += delta_for_start_row;
6073 if selection.end.row == selection.start.row {
6074 selection.end.column += delta_for_start_row;
6075 }
6076 }
6077
6078 let mut delta_for_end_row = 0;
6079 let has_multiple_rows = start_row + 1 != end_row;
6080 for row in start_row..end_row {
6081 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6082 let indent_delta = match (current_indent.kind, indent_kind) {
6083 (IndentKind::Space, IndentKind::Space) => {
6084 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6085 IndentSize::spaces(columns_to_next_tab_stop)
6086 }
6087 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6088 (_, IndentKind::Tab) => IndentSize::tab(),
6089 };
6090
6091 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6092 0
6093 } else {
6094 selection.start.column
6095 };
6096 let row_start = Point::new(row, start);
6097 edits.push((
6098 row_start..row_start,
6099 indent_delta.chars().collect::<String>(),
6100 ));
6101
6102 // Update this selection's endpoints to reflect the indentation.
6103 if row == selection.start.row {
6104 selection.start.column += indent_delta.len;
6105 }
6106 if row == selection.end.row {
6107 selection.end.column += indent_delta.len;
6108 delta_for_end_row = indent_delta.len;
6109 }
6110 }
6111
6112 if selection.start.row == selection.end.row {
6113 delta_for_start_row + delta_for_end_row
6114 } else {
6115 delta_for_end_row
6116 }
6117 }
6118
6119 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6120 if self.read_only(cx) {
6121 return;
6122 }
6123 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6124 let selections = self.selections.all::<Point>(cx);
6125 let mut deletion_ranges = Vec::new();
6126 let mut last_outdent = None;
6127 {
6128 let buffer = self.buffer.read(cx);
6129 let snapshot = buffer.snapshot(cx);
6130 for selection in &selections {
6131 let settings = buffer.settings_at(selection.start, cx);
6132 let tab_size = settings.tab_size.get();
6133 let mut rows = selection.spanned_rows(false, &display_map);
6134
6135 // Avoid re-outdenting a row that has already been outdented by a
6136 // previous selection.
6137 if let Some(last_row) = last_outdent {
6138 if last_row == rows.start {
6139 rows.start = rows.start.next_row();
6140 }
6141 }
6142 let has_multiple_rows = rows.len() > 1;
6143 for row in rows.iter_rows() {
6144 let indent_size = snapshot.indent_size_for_line(row);
6145 if indent_size.len > 0 {
6146 let deletion_len = match indent_size.kind {
6147 IndentKind::Space => {
6148 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6149 if columns_to_prev_tab_stop == 0 {
6150 tab_size
6151 } else {
6152 columns_to_prev_tab_stop
6153 }
6154 }
6155 IndentKind::Tab => 1,
6156 };
6157 let start = if has_multiple_rows
6158 || deletion_len > selection.start.column
6159 || indent_size.len < selection.start.column
6160 {
6161 0
6162 } else {
6163 selection.start.column - deletion_len
6164 };
6165 deletion_ranges.push(
6166 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6167 );
6168 last_outdent = Some(row);
6169 }
6170 }
6171 }
6172 }
6173
6174 self.transact(cx, |this, cx| {
6175 this.buffer.update(cx, |buffer, cx| {
6176 let empty_str: Arc<str> = Arc::default();
6177 buffer.edit(
6178 deletion_ranges
6179 .into_iter()
6180 .map(|range| (range, empty_str.clone())),
6181 None,
6182 cx,
6183 );
6184 });
6185 let selections = this.selections.all::<usize>(cx);
6186 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6187 });
6188 }
6189
6190 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6191 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6192 let selections = self.selections.all::<Point>(cx);
6193
6194 let mut new_cursors = Vec::new();
6195 let mut edit_ranges = Vec::new();
6196 let mut selections = selections.iter().peekable();
6197 while let Some(selection) = selections.next() {
6198 let mut rows = selection.spanned_rows(false, &display_map);
6199 let goal_display_column = selection.head().to_display_point(&display_map).column();
6200
6201 // Accumulate contiguous regions of rows that we want to delete.
6202 while let Some(next_selection) = selections.peek() {
6203 let next_rows = next_selection.spanned_rows(false, &display_map);
6204 if next_rows.start <= rows.end {
6205 rows.end = next_rows.end;
6206 selections.next().unwrap();
6207 } else {
6208 break;
6209 }
6210 }
6211
6212 let buffer = &display_map.buffer_snapshot;
6213 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6214 let edit_end;
6215 let cursor_buffer_row;
6216 if buffer.max_point().row >= rows.end.0 {
6217 // If there's a line after the range, delete the \n from the end of the row range
6218 // and position the cursor on the next line.
6219 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6220 cursor_buffer_row = rows.end;
6221 } else {
6222 // If there isn't a line after the range, delete the \n from the line before the
6223 // start of the row range and position the cursor there.
6224 edit_start = edit_start.saturating_sub(1);
6225 edit_end = buffer.len();
6226 cursor_buffer_row = rows.start.previous_row();
6227 }
6228
6229 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6230 *cursor.column_mut() =
6231 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6232
6233 new_cursors.push((
6234 selection.id,
6235 buffer.anchor_after(cursor.to_point(&display_map)),
6236 ));
6237 edit_ranges.push(edit_start..edit_end);
6238 }
6239
6240 self.transact(cx, |this, cx| {
6241 let buffer = this.buffer.update(cx, |buffer, cx| {
6242 let empty_str: Arc<str> = Arc::default();
6243 buffer.edit(
6244 edit_ranges
6245 .into_iter()
6246 .map(|range| (range, empty_str.clone())),
6247 None,
6248 cx,
6249 );
6250 buffer.snapshot(cx)
6251 });
6252 let new_selections = new_cursors
6253 .into_iter()
6254 .map(|(id, cursor)| {
6255 let cursor = cursor.to_point(&buffer);
6256 Selection {
6257 id,
6258 start: cursor,
6259 end: cursor,
6260 reversed: false,
6261 goal: SelectionGoal::None,
6262 }
6263 })
6264 .collect();
6265
6266 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6267 s.select(new_selections);
6268 });
6269 });
6270 }
6271
6272 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6273 if self.read_only(cx) {
6274 return;
6275 }
6276 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6277 for selection in self.selections.all::<Point>(cx) {
6278 let start = MultiBufferRow(selection.start.row);
6279 let end = if selection.start.row == selection.end.row {
6280 MultiBufferRow(selection.start.row + 1)
6281 } else {
6282 MultiBufferRow(selection.end.row)
6283 };
6284
6285 if let Some(last_row_range) = row_ranges.last_mut() {
6286 if start <= last_row_range.end {
6287 last_row_range.end = end;
6288 continue;
6289 }
6290 }
6291 row_ranges.push(start..end);
6292 }
6293
6294 let snapshot = self.buffer.read(cx).snapshot(cx);
6295 let mut cursor_positions = Vec::new();
6296 for row_range in &row_ranges {
6297 let anchor = snapshot.anchor_before(Point::new(
6298 row_range.end.previous_row().0,
6299 snapshot.line_len(row_range.end.previous_row()),
6300 ));
6301 cursor_positions.push(anchor..anchor);
6302 }
6303
6304 self.transact(cx, |this, cx| {
6305 for row_range in row_ranges.into_iter().rev() {
6306 for row in row_range.iter_rows().rev() {
6307 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6308 let next_line_row = row.next_row();
6309 let indent = snapshot.indent_size_for_line(next_line_row);
6310 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6311
6312 let replace = if snapshot.line_len(next_line_row) > indent.len {
6313 " "
6314 } else {
6315 ""
6316 };
6317
6318 this.buffer.update(cx, |buffer, cx| {
6319 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6320 });
6321 }
6322 }
6323
6324 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6325 s.select_anchor_ranges(cursor_positions)
6326 });
6327 });
6328 }
6329
6330 pub fn sort_lines_case_sensitive(
6331 &mut self,
6332 _: &SortLinesCaseSensitive,
6333 cx: &mut ViewContext<Self>,
6334 ) {
6335 self.manipulate_lines(cx, |lines| lines.sort())
6336 }
6337
6338 pub fn sort_lines_case_insensitive(
6339 &mut self,
6340 _: &SortLinesCaseInsensitive,
6341 cx: &mut ViewContext<Self>,
6342 ) {
6343 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6344 }
6345
6346 pub fn unique_lines_case_insensitive(
6347 &mut self,
6348 _: &UniqueLinesCaseInsensitive,
6349 cx: &mut ViewContext<Self>,
6350 ) {
6351 self.manipulate_lines(cx, |lines| {
6352 let mut seen = HashSet::default();
6353 lines.retain(|line| seen.insert(line.to_lowercase()));
6354 })
6355 }
6356
6357 pub fn unique_lines_case_sensitive(
6358 &mut self,
6359 _: &UniqueLinesCaseSensitive,
6360 cx: &mut ViewContext<Self>,
6361 ) {
6362 self.manipulate_lines(cx, |lines| {
6363 let mut seen = HashSet::default();
6364 lines.retain(|line| seen.insert(*line));
6365 })
6366 }
6367
6368 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6369 let mut revert_changes = HashMap::default();
6370 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6371 for hunk in hunks_for_rows(
6372 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6373 &multi_buffer_snapshot,
6374 ) {
6375 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6376 }
6377 if !revert_changes.is_empty() {
6378 self.transact(cx, |editor, cx| {
6379 editor.revert(revert_changes, cx);
6380 });
6381 }
6382 }
6383
6384 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6385 let Some(project) = self.project.clone() else {
6386 return;
6387 };
6388 self.reload(project, cx).detach_and_notify_err(cx);
6389 }
6390
6391 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6392 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6393 if !revert_changes.is_empty() {
6394 self.transact(cx, |editor, cx| {
6395 editor.revert(revert_changes, cx);
6396 });
6397 }
6398 }
6399
6400 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6401 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6402 let project_path = buffer.read(cx).project_path(cx)?;
6403 let project = self.project.as_ref()?.read(cx);
6404 let entry = project.entry_for_path(&project_path, cx)?;
6405 let parent = match &entry.canonical_path {
6406 Some(canonical_path) => canonical_path.to_path_buf(),
6407 None => project.absolute_path(&project_path, cx)?,
6408 }
6409 .parent()?
6410 .to_path_buf();
6411 Some(parent)
6412 }) {
6413 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6414 }
6415 }
6416
6417 fn gather_revert_changes(
6418 &mut self,
6419 selections: &[Selection<Anchor>],
6420 cx: &mut ViewContext<'_, Editor>,
6421 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6422 let mut revert_changes = HashMap::default();
6423 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6424 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6425 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6426 }
6427 revert_changes
6428 }
6429
6430 pub fn prepare_revert_change(
6431 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6432 multi_buffer: &Model<MultiBuffer>,
6433 hunk: &MultiBufferDiffHunk,
6434 cx: &AppContext,
6435 ) -> Option<()> {
6436 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6437 let buffer = buffer.read(cx);
6438 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6439 let buffer_snapshot = buffer.snapshot();
6440 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6441 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6442 probe
6443 .0
6444 .start
6445 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6446 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6447 }) {
6448 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6449 Some(())
6450 } else {
6451 None
6452 }
6453 }
6454
6455 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6456 self.manipulate_lines(cx, |lines| lines.reverse())
6457 }
6458
6459 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6460 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6461 }
6462
6463 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6464 where
6465 Fn: FnMut(&mut Vec<&str>),
6466 {
6467 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6468 let buffer = self.buffer.read(cx).snapshot(cx);
6469
6470 let mut edits = Vec::new();
6471
6472 let selections = self.selections.all::<Point>(cx);
6473 let mut selections = selections.iter().peekable();
6474 let mut contiguous_row_selections = Vec::new();
6475 let mut new_selections = Vec::new();
6476 let mut added_lines = 0;
6477 let mut removed_lines = 0;
6478
6479 while let Some(selection) = selections.next() {
6480 let (start_row, end_row) = consume_contiguous_rows(
6481 &mut contiguous_row_selections,
6482 selection,
6483 &display_map,
6484 &mut selections,
6485 );
6486
6487 let start_point = Point::new(start_row.0, 0);
6488 let end_point = Point::new(
6489 end_row.previous_row().0,
6490 buffer.line_len(end_row.previous_row()),
6491 );
6492 let text = buffer
6493 .text_for_range(start_point..end_point)
6494 .collect::<String>();
6495
6496 let mut lines = text.split('\n').collect_vec();
6497
6498 let lines_before = lines.len();
6499 callback(&mut lines);
6500 let lines_after = lines.len();
6501
6502 edits.push((start_point..end_point, lines.join("\n")));
6503
6504 // Selections must change based on added and removed line count
6505 let start_row =
6506 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6507 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6508 new_selections.push(Selection {
6509 id: selection.id,
6510 start: start_row,
6511 end: end_row,
6512 goal: SelectionGoal::None,
6513 reversed: selection.reversed,
6514 });
6515
6516 if lines_after > lines_before {
6517 added_lines += lines_after - lines_before;
6518 } else if lines_before > lines_after {
6519 removed_lines += lines_before - lines_after;
6520 }
6521 }
6522
6523 self.transact(cx, |this, cx| {
6524 let buffer = this.buffer.update(cx, |buffer, cx| {
6525 buffer.edit(edits, None, cx);
6526 buffer.snapshot(cx)
6527 });
6528
6529 // Recalculate offsets on newly edited buffer
6530 let new_selections = new_selections
6531 .iter()
6532 .map(|s| {
6533 let start_point = Point::new(s.start.0, 0);
6534 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6535 Selection {
6536 id: s.id,
6537 start: buffer.point_to_offset(start_point),
6538 end: buffer.point_to_offset(end_point),
6539 goal: s.goal,
6540 reversed: s.reversed,
6541 }
6542 })
6543 .collect();
6544
6545 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6546 s.select(new_selections);
6547 });
6548
6549 this.request_autoscroll(Autoscroll::fit(), cx);
6550 });
6551 }
6552
6553 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6554 self.manipulate_text(cx, |text| text.to_uppercase())
6555 }
6556
6557 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6558 self.manipulate_text(cx, |text| text.to_lowercase())
6559 }
6560
6561 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6562 self.manipulate_text(cx, |text| {
6563 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6564 // https://github.com/rutrum/convert-case/issues/16
6565 text.split('\n')
6566 .map(|line| line.to_case(Case::Title))
6567 .join("\n")
6568 })
6569 }
6570
6571 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6572 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6573 }
6574
6575 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6576 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6577 }
6578
6579 pub fn convert_to_upper_camel_case(
6580 &mut self,
6581 _: &ConvertToUpperCamelCase,
6582 cx: &mut ViewContext<Self>,
6583 ) {
6584 self.manipulate_text(cx, |text| {
6585 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6586 // https://github.com/rutrum/convert-case/issues/16
6587 text.split('\n')
6588 .map(|line| line.to_case(Case::UpperCamel))
6589 .join("\n")
6590 })
6591 }
6592
6593 pub fn convert_to_lower_camel_case(
6594 &mut self,
6595 _: &ConvertToLowerCamelCase,
6596 cx: &mut ViewContext<Self>,
6597 ) {
6598 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6599 }
6600
6601 pub fn convert_to_opposite_case(
6602 &mut self,
6603 _: &ConvertToOppositeCase,
6604 cx: &mut ViewContext<Self>,
6605 ) {
6606 self.manipulate_text(cx, |text| {
6607 text.chars()
6608 .fold(String::with_capacity(text.len()), |mut t, c| {
6609 if c.is_uppercase() {
6610 t.extend(c.to_lowercase());
6611 } else {
6612 t.extend(c.to_uppercase());
6613 }
6614 t
6615 })
6616 })
6617 }
6618
6619 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6620 where
6621 Fn: FnMut(&str) -> String,
6622 {
6623 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6624 let buffer = self.buffer.read(cx).snapshot(cx);
6625
6626 let mut new_selections = Vec::new();
6627 let mut edits = Vec::new();
6628 let mut selection_adjustment = 0i32;
6629
6630 for selection in self.selections.all::<usize>(cx) {
6631 let selection_is_empty = selection.is_empty();
6632
6633 let (start, end) = if selection_is_empty {
6634 let word_range = movement::surrounding_word(
6635 &display_map,
6636 selection.start.to_display_point(&display_map),
6637 );
6638 let start = word_range.start.to_offset(&display_map, Bias::Left);
6639 let end = word_range.end.to_offset(&display_map, Bias::Left);
6640 (start, end)
6641 } else {
6642 (selection.start, selection.end)
6643 };
6644
6645 let text = buffer.text_for_range(start..end).collect::<String>();
6646 let old_length = text.len() as i32;
6647 let text = callback(&text);
6648
6649 new_selections.push(Selection {
6650 start: (start as i32 - selection_adjustment) as usize,
6651 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6652 goal: SelectionGoal::None,
6653 ..selection
6654 });
6655
6656 selection_adjustment += old_length - text.len() as i32;
6657
6658 edits.push((start..end, text));
6659 }
6660
6661 self.transact(cx, |this, cx| {
6662 this.buffer.update(cx, |buffer, cx| {
6663 buffer.edit(edits, None, cx);
6664 });
6665
6666 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6667 s.select(new_selections);
6668 });
6669
6670 this.request_autoscroll(Autoscroll::fit(), cx);
6671 });
6672 }
6673
6674 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6675 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6676 let buffer = &display_map.buffer_snapshot;
6677 let selections = self.selections.all::<Point>(cx);
6678
6679 let mut edits = Vec::new();
6680 let mut selections_iter = selections.iter().peekable();
6681 while let Some(selection) = selections_iter.next() {
6682 // Avoid duplicating the same lines twice.
6683 let mut rows = selection.spanned_rows(false, &display_map);
6684
6685 while let Some(next_selection) = selections_iter.peek() {
6686 let next_rows = next_selection.spanned_rows(false, &display_map);
6687 if next_rows.start < rows.end {
6688 rows.end = next_rows.end;
6689 selections_iter.next().unwrap();
6690 } else {
6691 break;
6692 }
6693 }
6694
6695 // Copy the text from the selected row region and splice it either at the start
6696 // or end of the region.
6697 let start = Point::new(rows.start.0, 0);
6698 let end = Point::new(
6699 rows.end.previous_row().0,
6700 buffer.line_len(rows.end.previous_row()),
6701 );
6702 let text = buffer
6703 .text_for_range(start..end)
6704 .chain(Some("\n"))
6705 .collect::<String>();
6706 let insert_location = if upwards {
6707 Point::new(rows.end.0, 0)
6708 } else {
6709 start
6710 };
6711 edits.push((insert_location..insert_location, text));
6712 }
6713
6714 self.transact(cx, |this, cx| {
6715 this.buffer.update(cx, |buffer, cx| {
6716 buffer.edit(edits, None, cx);
6717 });
6718
6719 this.request_autoscroll(Autoscroll::fit(), cx);
6720 });
6721 }
6722
6723 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6724 self.duplicate_line(true, cx);
6725 }
6726
6727 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6728 self.duplicate_line(false, cx);
6729 }
6730
6731 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6732 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6733 let buffer = self.buffer.read(cx).snapshot(cx);
6734
6735 let mut edits = Vec::new();
6736 let mut unfold_ranges = Vec::new();
6737 let mut refold_ranges = Vec::new();
6738
6739 let selections = self.selections.all::<Point>(cx);
6740 let mut selections = selections.iter().peekable();
6741 let mut contiguous_row_selections = Vec::new();
6742 let mut new_selections = Vec::new();
6743
6744 while let Some(selection) = selections.next() {
6745 // Find all the selections that span a contiguous row range
6746 let (start_row, end_row) = consume_contiguous_rows(
6747 &mut contiguous_row_selections,
6748 selection,
6749 &display_map,
6750 &mut selections,
6751 );
6752
6753 // Move the text spanned by the row range to be before the line preceding the row range
6754 if start_row.0 > 0 {
6755 let range_to_move = Point::new(
6756 start_row.previous_row().0,
6757 buffer.line_len(start_row.previous_row()),
6758 )
6759 ..Point::new(
6760 end_row.previous_row().0,
6761 buffer.line_len(end_row.previous_row()),
6762 );
6763 let insertion_point = display_map
6764 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6765 .0;
6766
6767 // Don't move lines across excerpts
6768 if buffer
6769 .excerpt_boundaries_in_range((
6770 Bound::Excluded(insertion_point),
6771 Bound::Included(range_to_move.end),
6772 ))
6773 .next()
6774 .is_none()
6775 {
6776 let text = buffer
6777 .text_for_range(range_to_move.clone())
6778 .flat_map(|s| s.chars())
6779 .skip(1)
6780 .chain(['\n'])
6781 .collect::<String>();
6782
6783 edits.push((
6784 buffer.anchor_after(range_to_move.start)
6785 ..buffer.anchor_before(range_to_move.end),
6786 String::new(),
6787 ));
6788 let insertion_anchor = buffer.anchor_after(insertion_point);
6789 edits.push((insertion_anchor..insertion_anchor, text));
6790
6791 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6792
6793 // Move selections up
6794 new_selections.extend(contiguous_row_selections.drain(..).map(
6795 |mut selection| {
6796 selection.start.row -= row_delta;
6797 selection.end.row -= row_delta;
6798 selection
6799 },
6800 ));
6801
6802 // Move folds up
6803 unfold_ranges.push(range_to_move.clone());
6804 for fold in display_map.folds_in_range(
6805 buffer.anchor_before(range_to_move.start)
6806 ..buffer.anchor_after(range_to_move.end),
6807 ) {
6808 let mut start = fold.range.start.to_point(&buffer);
6809 let mut end = fold.range.end.to_point(&buffer);
6810 start.row -= row_delta;
6811 end.row -= row_delta;
6812 refold_ranges.push((start..end, fold.placeholder.clone()));
6813 }
6814 }
6815 }
6816
6817 // If we didn't move line(s), preserve the existing selections
6818 new_selections.append(&mut contiguous_row_selections);
6819 }
6820
6821 self.transact(cx, |this, cx| {
6822 this.unfold_ranges(&unfold_ranges, true, true, cx);
6823 this.buffer.update(cx, |buffer, cx| {
6824 for (range, text) in edits {
6825 buffer.edit([(range, text)], None, cx);
6826 }
6827 });
6828 this.fold_ranges(refold_ranges, true, cx);
6829 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6830 s.select(new_selections);
6831 })
6832 });
6833 }
6834
6835 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6836 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6837 let buffer = self.buffer.read(cx).snapshot(cx);
6838
6839 let mut edits = Vec::new();
6840 let mut unfold_ranges = Vec::new();
6841 let mut refold_ranges = Vec::new();
6842
6843 let selections = self.selections.all::<Point>(cx);
6844 let mut selections = selections.iter().peekable();
6845 let mut contiguous_row_selections = Vec::new();
6846 let mut new_selections = Vec::new();
6847
6848 while let Some(selection) = selections.next() {
6849 // Find all the selections that span a contiguous row range
6850 let (start_row, end_row) = consume_contiguous_rows(
6851 &mut contiguous_row_selections,
6852 selection,
6853 &display_map,
6854 &mut selections,
6855 );
6856
6857 // Move the text spanned by the row range to be after the last line of the row range
6858 if end_row.0 <= buffer.max_point().row {
6859 let range_to_move =
6860 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6861 let insertion_point = display_map
6862 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6863 .0;
6864
6865 // Don't move lines across excerpt boundaries
6866 if buffer
6867 .excerpt_boundaries_in_range((
6868 Bound::Excluded(range_to_move.start),
6869 Bound::Included(insertion_point),
6870 ))
6871 .next()
6872 .is_none()
6873 {
6874 let mut text = String::from("\n");
6875 text.extend(buffer.text_for_range(range_to_move.clone()));
6876 text.pop(); // Drop trailing newline
6877 edits.push((
6878 buffer.anchor_after(range_to_move.start)
6879 ..buffer.anchor_before(range_to_move.end),
6880 String::new(),
6881 ));
6882 let insertion_anchor = buffer.anchor_after(insertion_point);
6883 edits.push((insertion_anchor..insertion_anchor, text));
6884
6885 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6886
6887 // Move selections down
6888 new_selections.extend(contiguous_row_selections.drain(..).map(
6889 |mut selection| {
6890 selection.start.row += row_delta;
6891 selection.end.row += row_delta;
6892 selection
6893 },
6894 ));
6895
6896 // Move folds down
6897 unfold_ranges.push(range_to_move.clone());
6898 for fold in display_map.folds_in_range(
6899 buffer.anchor_before(range_to_move.start)
6900 ..buffer.anchor_after(range_to_move.end),
6901 ) {
6902 let mut start = fold.range.start.to_point(&buffer);
6903 let mut end = fold.range.end.to_point(&buffer);
6904 start.row += row_delta;
6905 end.row += row_delta;
6906 refold_ranges.push((start..end, fold.placeholder.clone()));
6907 }
6908 }
6909 }
6910
6911 // If we didn't move line(s), preserve the existing selections
6912 new_selections.append(&mut contiguous_row_selections);
6913 }
6914
6915 self.transact(cx, |this, cx| {
6916 this.unfold_ranges(&unfold_ranges, true, true, cx);
6917 this.buffer.update(cx, |buffer, cx| {
6918 for (range, text) in edits {
6919 buffer.edit([(range, text)], None, cx);
6920 }
6921 });
6922 this.fold_ranges(refold_ranges, true, cx);
6923 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6924 });
6925 }
6926
6927 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6928 let text_layout_details = &self.text_layout_details(cx);
6929 self.transact(cx, |this, cx| {
6930 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6931 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6932 let line_mode = s.line_mode;
6933 s.move_with(|display_map, selection| {
6934 if !selection.is_empty() || line_mode {
6935 return;
6936 }
6937
6938 let mut head = selection.head();
6939 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6940 if head.column() == display_map.line_len(head.row()) {
6941 transpose_offset = display_map
6942 .buffer_snapshot
6943 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6944 }
6945
6946 if transpose_offset == 0 {
6947 return;
6948 }
6949
6950 *head.column_mut() += 1;
6951 head = display_map.clip_point(head, Bias::Right);
6952 let goal = SelectionGoal::HorizontalPosition(
6953 display_map
6954 .x_for_display_point(head, text_layout_details)
6955 .into(),
6956 );
6957 selection.collapse_to(head, goal);
6958
6959 let transpose_start = display_map
6960 .buffer_snapshot
6961 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6962 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6963 let transpose_end = display_map
6964 .buffer_snapshot
6965 .clip_offset(transpose_offset + 1, Bias::Right);
6966 if let Some(ch) =
6967 display_map.buffer_snapshot.chars_at(transpose_start).next()
6968 {
6969 edits.push((transpose_start..transpose_offset, String::new()));
6970 edits.push((transpose_end..transpose_end, ch.to_string()));
6971 }
6972 }
6973 });
6974 edits
6975 });
6976 this.buffer
6977 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6978 let selections = this.selections.all::<usize>(cx);
6979 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6980 s.select(selections);
6981 });
6982 });
6983 }
6984
6985 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6986 self.rewrap_impl(true, cx)
6987 }
6988
6989 pub fn rewrap_impl(&mut self, only_text: bool, cx: &mut ViewContext<Self>) {
6990 let buffer = self.buffer.read(cx).snapshot(cx);
6991 let selections = self.selections.all::<Point>(cx);
6992 let mut selections = selections.iter().peekable();
6993
6994 let mut edits = Vec::new();
6995 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6996
6997 while let Some(selection) = selections.next() {
6998 let mut start_row = selection.start.row;
6999 let mut end_row = selection.end.row;
7000
7001 // Skip selections that overlap with a range that has already been rewrapped.
7002 let selection_range = start_row..end_row;
7003 if rewrapped_row_ranges
7004 .iter()
7005 .any(|range| range.overlaps(&selection_range))
7006 {
7007 continue;
7008 }
7009
7010 let mut should_rewrap = !only_text;
7011
7012 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7013 match language_scope.language_name().0.as_ref() {
7014 "Markdown" | "Plain Text" => {
7015 should_rewrap = true;
7016 }
7017 _ => {}
7018 }
7019 }
7020
7021 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
7022
7023 // Since not all lines in the selection may be at the same indent
7024 // level, choose the indent size that is the most common between all
7025 // of the lines.
7026 //
7027 // If there is a tie, we use the deepest indent.
7028 let (indent_size, indent_end) = {
7029 let mut indent_size_occurrences = HashMap::default();
7030 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7031
7032 for row in start_row..=end_row {
7033 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7034 rows_by_indent_size.entry(indent).or_default().push(row);
7035 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7036 }
7037
7038 let indent_size = indent_size_occurrences
7039 .into_iter()
7040 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
7041 .map(|(indent, _)| indent)
7042 .unwrap_or_default();
7043 let row = rows_by_indent_size[&indent_size][0];
7044 let indent_end = Point::new(row, indent_size.len);
7045
7046 (indent_size, indent_end)
7047 };
7048
7049 let mut line_prefix = indent_size.chars().collect::<String>();
7050
7051 if let Some(comment_prefix) =
7052 buffer
7053 .language_scope_at(selection.head())
7054 .and_then(|language| {
7055 language
7056 .line_comment_prefixes()
7057 .iter()
7058 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7059 .cloned()
7060 })
7061 {
7062 line_prefix.push_str(&comment_prefix);
7063 should_rewrap = true;
7064 }
7065
7066 if !should_rewrap {
7067 continue;
7068 }
7069
7070 if selection.is_empty() {
7071 'expand_upwards: while start_row > 0 {
7072 let prev_row = start_row - 1;
7073 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7074 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7075 {
7076 start_row = prev_row;
7077 } else {
7078 break 'expand_upwards;
7079 }
7080 }
7081
7082 'expand_downwards: while end_row < buffer.max_point().row {
7083 let next_row = end_row + 1;
7084 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7085 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7086 {
7087 end_row = next_row;
7088 } else {
7089 break 'expand_downwards;
7090 }
7091 }
7092 }
7093
7094 let start = Point::new(start_row, 0);
7095 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7096 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7097 let Some(lines_without_prefixes) = selection_text
7098 .lines()
7099 .map(|line| {
7100 line.strip_prefix(&line_prefix)
7101 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7102 .ok_or_else(|| {
7103 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7104 })
7105 })
7106 .collect::<Result<Vec<_>, _>>()
7107 .log_err()
7108 else {
7109 continue;
7110 };
7111
7112 let wrap_column = buffer
7113 .settings_at(Point::new(start_row, 0), cx)
7114 .preferred_line_length as usize;
7115 let wrapped_text = wrap_with_prefix(
7116 line_prefix,
7117 lines_without_prefixes.join(" "),
7118 wrap_column,
7119 tab_size,
7120 );
7121
7122 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
7123 let mut offset = start.to_offset(&buffer);
7124 let mut moved_since_edit = true;
7125
7126 for change in diff.iter_all_changes() {
7127 let value = change.value();
7128 match change.tag() {
7129 ChangeTag::Equal => {
7130 offset += value.len();
7131 moved_since_edit = true;
7132 }
7133 ChangeTag::Delete => {
7134 let start = buffer.anchor_after(offset);
7135 let end = buffer.anchor_before(offset + value.len());
7136
7137 if moved_since_edit {
7138 edits.push((start..end, String::new()));
7139 } else {
7140 edits.last_mut().unwrap().0.end = end;
7141 }
7142
7143 offset += value.len();
7144 moved_since_edit = false;
7145 }
7146 ChangeTag::Insert => {
7147 if moved_since_edit {
7148 let anchor = buffer.anchor_after(offset);
7149 edits.push((anchor..anchor, value.to_string()));
7150 } else {
7151 edits.last_mut().unwrap().1.push_str(value);
7152 }
7153
7154 moved_since_edit = false;
7155 }
7156 }
7157 }
7158
7159 rewrapped_row_ranges.push(start_row..=end_row);
7160 }
7161
7162 self.buffer
7163 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7164 }
7165
7166 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7167 let mut text = String::new();
7168 let buffer = self.buffer.read(cx).snapshot(cx);
7169 let mut selections = self.selections.all::<Point>(cx);
7170 let mut clipboard_selections = Vec::with_capacity(selections.len());
7171 {
7172 let max_point = buffer.max_point();
7173 let mut is_first = true;
7174 for selection in &mut selections {
7175 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7176 if is_entire_line {
7177 selection.start = Point::new(selection.start.row, 0);
7178 if !selection.is_empty() && selection.end.column == 0 {
7179 selection.end = cmp::min(max_point, selection.end);
7180 } else {
7181 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7182 }
7183 selection.goal = SelectionGoal::None;
7184 }
7185 if is_first {
7186 is_first = false;
7187 } else {
7188 text += "\n";
7189 }
7190 let mut len = 0;
7191 for chunk in buffer.text_for_range(selection.start..selection.end) {
7192 text.push_str(chunk);
7193 len += chunk.len();
7194 }
7195 clipboard_selections.push(ClipboardSelection {
7196 len,
7197 is_entire_line,
7198 first_line_indent: buffer
7199 .indent_size_for_line(MultiBufferRow(selection.start.row))
7200 .len,
7201 });
7202 }
7203 }
7204
7205 self.transact(cx, |this, cx| {
7206 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7207 s.select(selections);
7208 });
7209 this.insert("", cx);
7210 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7211 text,
7212 clipboard_selections,
7213 ));
7214 });
7215 }
7216
7217 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7218 let selections = self.selections.all::<Point>(cx);
7219 let buffer = self.buffer.read(cx).read(cx);
7220 let mut text = String::new();
7221
7222 let mut clipboard_selections = Vec::with_capacity(selections.len());
7223 {
7224 let max_point = buffer.max_point();
7225 let mut is_first = true;
7226 for selection in selections.iter() {
7227 let mut start = selection.start;
7228 let mut end = selection.end;
7229 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7230 if is_entire_line {
7231 start = Point::new(start.row, 0);
7232 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7233 }
7234 if is_first {
7235 is_first = false;
7236 } else {
7237 text += "\n";
7238 }
7239 let mut len = 0;
7240 for chunk in buffer.text_for_range(start..end) {
7241 text.push_str(chunk);
7242 len += chunk.len();
7243 }
7244 clipboard_selections.push(ClipboardSelection {
7245 len,
7246 is_entire_line,
7247 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7248 });
7249 }
7250 }
7251
7252 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7253 text,
7254 clipboard_selections,
7255 ));
7256 }
7257
7258 pub fn do_paste(
7259 &mut self,
7260 text: &String,
7261 clipboard_selections: Option<Vec<ClipboardSelection>>,
7262 handle_entire_lines: bool,
7263 cx: &mut ViewContext<Self>,
7264 ) {
7265 if self.read_only(cx) {
7266 return;
7267 }
7268
7269 let clipboard_text = Cow::Borrowed(text);
7270
7271 self.transact(cx, |this, cx| {
7272 if let Some(mut clipboard_selections) = clipboard_selections {
7273 let old_selections = this.selections.all::<usize>(cx);
7274 let all_selections_were_entire_line =
7275 clipboard_selections.iter().all(|s| s.is_entire_line);
7276 let first_selection_indent_column =
7277 clipboard_selections.first().map(|s| s.first_line_indent);
7278 if clipboard_selections.len() != old_selections.len() {
7279 clipboard_selections.drain(..);
7280 }
7281 let cursor_offset = this.selections.last::<usize>(cx).head();
7282 let mut auto_indent_on_paste = true;
7283
7284 this.buffer.update(cx, |buffer, cx| {
7285 let snapshot = buffer.read(cx);
7286 auto_indent_on_paste =
7287 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7288
7289 let mut start_offset = 0;
7290 let mut edits = Vec::new();
7291 let mut original_indent_columns = Vec::new();
7292 for (ix, selection) in old_selections.iter().enumerate() {
7293 let to_insert;
7294 let entire_line;
7295 let original_indent_column;
7296 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7297 let end_offset = start_offset + clipboard_selection.len;
7298 to_insert = &clipboard_text[start_offset..end_offset];
7299 entire_line = clipboard_selection.is_entire_line;
7300 start_offset = end_offset + 1;
7301 original_indent_column = Some(clipboard_selection.first_line_indent);
7302 } else {
7303 to_insert = clipboard_text.as_str();
7304 entire_line = all_selections_were_entire_line;
7305 original_indent_column = first_selection_indent_column
7306 }
7307
7308 // If the corresponding selection was empty when this slice of the
7309 // clipboard text was written, then the entire line containing the
7310 // selection was copied. If this selection is also currently empty,
7311 // then paste the line before the current line of the buffer.
7312 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7313 let column = selection.start.to_point(&snapshot).column as usize;
7314 let line_start = selection.start - column;
7315 line_start..line_start
7316 } else {
7317 selection.range()
7318 };
7319
7320 edits.push((range, to_insert));
7321 original_indent_columns.extend(original_indent_column);
7322 }
7323 drop(snapshot);
7324
7325 buffer.edit(
7326 edits,
7327 if auto_indent_on_paste {
7328 Some(AutoindentMode::Block {
7329 original_indent_columns,
7330 })
7331 } else {
7332 None
7333 },
7334 cx,
7335 );
7336 });
7337
7338 let selections = this.selections.all::<usize>(cx);
7339 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7340 } else {
7341 this.insert(&clipboard_text, cx);
7342 }
7343 });
7344 }
7345
7346 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7347 if let Some(item) = cx.read_from_clipboard() {
7348 let entries = item.entries();
7349
7350 match entries.first() {
7351 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7352 // of all the pasted entries.
7353 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7354 .do_paste(
7355 clipboard_string.text(),
7356 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7357 true,
7358 cx,
7359 ),
7360 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7361 }
7362 }
7363 }
7364
7365 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7366 if self.read_only(cx) {
7367 return;
7368 }
7369
7370 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7371 if let Some((selections, _)) =
7372 self.selection_history.transaction(transaction_id).cloned()
7373 {
7374 self.change_selections(None, cx, |s| {
7375 s.select_anchors(selections.to_vec());
7376 });
7377 }
7378 self.request_autoscroll(Autoscroll::fit(), cx);
7379 self.unmark_text(cx);
7380 self.refresh_inline_completion(true, false, cx);
7381 cx.emit(EditorEvent::Edited { transaction_id });
7382 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7383 }
7384 }
7385
7386 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7387 if self.read_only(cx) {
7388 return;
7389 }
7390
7391 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7392 if let Some((_, Some(selections))) =
7393 self.selection_history.transaction(transaction_id).cloned()
7394 {
7395 self.change_selections(None, cx, |s| {
7396 s.select_anchors(selections.to_vec());
7397 });
7398 }
7399 self.request_autoscroll(Autoscroll::fit(), cx);
7400 self.unmark_text(cx);
7401 self.refresh_inline_completion(true, false, cx);
7402 cx.emit(EditorEvent::Edited { transaction_id });
7403 }
7404 }
7405
7406 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7407 self.buffer
7408 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7409 }
7410
7411 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7412 self.buffer
7413 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7414 }
7415
7416 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7417 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7418 let line_mode = s.line_mode;
7419 s.move_with(|map, selection| {
7420 let cursor = if selection.is_empty() && !line_mode {
7421 movement::left(map, selection.start)
7422 } else {
7423 selection.start
7424 };
7425 selection.collapse_to(cursor, SelectionGoal::None);
7426 });
7427 })
7428 }
7429
7430 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7431 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7432 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7433 })
7434 }
7435
7436 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7437 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7438 let line_mode = s.line_mode;
7439 s.move_with(|map, selection| {
7440 let cursor = if selection.is_empty() && !line_mode {
7441 movement::right(map, selection.end)
7442 } else {
7443 selection.end
7444 };
7445 selection.collapse_to(cursor, SelectionGoal::None)
7446 });
7447 })
7448 }
7449
7450 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7451 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7452 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7453 })
7454 }
7455
7456 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7457 if self.take_rename(true, cx).is_some() {
7458 return;
7459 }
7460
7461 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7462 cx.propagate();
7463 return;
7464 }
7465
7466 let text_layout_details = &self.text_layout_details(cx);
7467 let selection_count = self.selections.count();
7468 let first_selection = self.selections.first_anchor();
7469
7470 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7471 let line_mode = s.line_mode;
7472 s.move_with(|map, selection| {
7473 if !selection.is_empty() && !line_mode {
7474 selection.goal = SelectionGoal::None;
7475 }
7476 let (cursor, goal) = movement::up(
7477 map,
7478 selection.start,
7479 selection.goal,
7480 false,
7481 text_layout_details,
7482 );
7483 selection.collapse_to(cursor, goal);
7484 });
7485 });
7486
7487 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7488 {
7489 cx.propagate();
7490 }
7491 }
7492
7493 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7494 if self.take_rename(true, cx).is_some() {
7495 return;
7496 }
7497
7498 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7499 cx.propagate();
7500 return;
7501 }
7502
7503 let text_layout_details = &self.text_layout_details(cx);
7504
7505 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7506 let line_mode = s.line_mode;
7507 s.move_with(|map, selection| {
7508 if !selection.is_empty() && !line_mode {
7509 selection.goal = SelectionGoal::None;
7510 }
7511 let (cursor, goal) = movement::up_by_rows(
7512 map,
7513 selection.start,
7514 action.lines,
7515 selection.goal,
7516 false,
7517 text_layout_details,
7518 );
7519 selection.collapse_to(cursor, goal);
7520 });
7521 })
7522 }
7523
7524 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7525 if self.take_rename(true, cx).is_some() {
7526 return;
7527 }
7528
7529 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7530 cx.propagate();
7531 return;
7532 }
7533
7534 let text_layout_details = &self.text_layout_details(cx);
7535
7536 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7537 let line_mode = s.line_mode;
7538 s.move_with(|map, selection| {
7539 if !selection.is_empty() && !line_mode {
7540 selection.goal = SelectionGoal::None;
7541 }
7542 let (cursor, goal) = movement::down_by_rows(
7543 map,
7544 selection.start,
7545 action.lines,
7546 selection.goal,
7547 false,
7548 text_layout_details,
7549 );
7550 selection.collapse_to(cursor, goal);
7551 });
7552 })
7553 }
7554
7555 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7556 let text_layout_details = &self.text_layout_details(cx);
7557 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7558 s.move_heads_with(|map, head, goal| {
7559 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7560 })
7561 })
7562 }
7563
7564 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7565 let text_layout_details = &self.text_layout_details(cx);
7566 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7567 s.move_heads_with(|map, head, goal| {
7568 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7569 })
7570 })
7571 }
7572
7573 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7574 let Some(row_count) = self.visible_row_count() else {
7575 return;
7576 };
7577
7578 let text_layout_details = &self.text_layout_details(cx);
7579
7580 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7581 s.move_heads_with(|map, head, goal| {
7582 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7583 })
7584 })
7585 }
7586
7587 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7588 if self.take_rename(true, cx).is_some() {
7589 return;
7590 }
7591
7592 if self
7593 .context_menu
7594 .write()
7595 .as_mut()
7596 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7597 .unwrap_or(false)
7598 {
7599 return;
7600 }
7601
7602 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7603 cx.propagate();
7604 return;
7605 }
7606
7607 let Some(row_count) = self.visible_row_count() else {
7608 return;
7609 };
7610
7611 let autoscroll = if action.center_cursor {
7612 Autoscroll::center()
7613 } else {
7614 Autoscroll::fit()
7615 };
7616
7617 let text_layout_details = &self.text_layout_details(cx);
7618
7619 self.change_selections(Some(autoscroll), cx, |s| {
7620 let line_mode = s.line_mode;
7621 s.move_with(|map, selection| {
7622 if !selection.is_empty() && !line_mode {
7623 selection.goal = SelectionGoal::None;
7624 }
7625 let (cursor, goal) = movement::up_by_rows(
7626 map,
7627 selection.end,
7628 row_count,
7629 selection.goal,
7630 false,
7631 text_layout_details,
7632 );
7633 selection.collapse_to(cursor, goal);
7634 });
7635 });
7636 }
7637
7638 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7639 let text_layout_details = &self.text_layout_details(cx);
7640 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7641 s.move_heads_with(|map, head, goal| {
7642 movement::up(map, head, goal, false, text_layout_details)
7643 })
7644 })
7645 }
7646
7647 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7648 self.take_rename(true, cx);
7649
7650 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7651 cx.propagate();
7652 return;
7653 }
7654
7655 let text_layout_details = &self.text_layout_details(cx);
7656 let selection_count = self.selections.count();
7657 let first_selection = self.selections.first_anchor();
7658
7659 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7660 let line_mode = s.line_mode;
7661 s.move_with(|map, selection| {
7662 if !selection.is_empty() && !line_mode {
7663 selection.goal = SelectionGoal::None;
7664 }
7665 let (cursor, goal) = movement::down(
7666 map,
7667 selection.end,
7668 selection.goal,
7669 false,
7670 text_layout_details,
7671 );
7672 selection.collapse_to(cursor, goal);
7673 });
7674 });
7675
7676 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7677 {
7678 cx.propagate();
7679 }
7680 }
7681
7682 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7683 let Some(row_count) = self.visible_row_count() else {
7684 return;
7685 };
7686
7687 let text_layout_details = &self.text_layout_details(cx);
7688
7689 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7690 s.move_heads_with(|map, head, goal| {
7691 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7692 })
7693 })
7694 }
7695
7696 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7697 if self.take_rename(true, cx).is_some() {
7698 return;
7699 }
7700
7701 if self
7702 .context_menu
7703 .write()
7704 .as_mut()
7705 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7706 .unwrap_or(false)
7707 {
7708 return;
7709 }
7710
7711 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7712 cx.propagate();
7713 return;
7714 }
7715
7716 let Some(row_count) = self.visible_row_count() else {
7717 return;
7718 };
7719
7720 let autoscroll = if action.center_cursor {
7721 Autoscroll::center()
7722 } else {
7723 Autoscroll::fit()
7724 };
7725
7726 let text_layout_details = &self.text_layout_details(cx);
7727 self.change_selections(Some(autoscroll), cx, |s| {
7728 let line_mode = s.line_mode;
7729 s.move_with(|map, selection| {
7730 if !selection.is_empty() && !line_mode {
7731 selection.goal = SelectionGoal::None;
7732 }
7733 let (cursor, goal) = movement::down_by_rows(
7734 map,
7735 selection.end,
7736 row_count,
7737 selection.goal,
7738 false,
7739 text_layout_details,
7740 );
7741 selection.collapse_to(cursor, goal);
7742 });
7743 });
7744 }
7745
7746 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7747 let text_layout_details = &self.text_layout_details(cx);
7748 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7749 s.move_heads_with(|map, head, goal| {
7750 movement::down(map, head, goal, false, text_layout_details)
7751 })
7752 });
7753 }
7754
7755 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7756 if let Some(context_menu) = self.context_menu.write().as_mut() {
7757 context_menu.select_first(self.completion_provider.as_deref(), cx);
7758 }
7759 }
7760
7761 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7762 if let Some(context_menu) = self.context_menu.write().as_mut() {
7763 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7764 }
7765 }
7766
7767 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7768 if let Some(context_menu) = self.context_menu.write().as_mut() {
7769 context_menu.select_next(self.completion_provider.as_deref(), cx);
7770 }
7771 }
7772
7773 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7774 if let Some(context_menu) = self.context_menu.write().as_mut() {
7775 context_menu.select_last(self.completion_provider.as_deref(), cx);
7776 }
7777 }
7778
7779 pub fn move_to_previous_word_start(
7780 &mut self,
7781 _: &MoveToPreviousWordStart,
7782 cx: &mut ViewContext<Self>,
7783 ) {
7784 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7785 s.move_cursors_with(|map, head, _| {
7786 (
7787 movement::previous_word_start(map, head),
7788 SelectionGoal::None,
7789 )
7790 });
7791 })
7792 }
7793
7794 pub fn move_to_previous_subword_start(
7795 &mut self,
7796 _: &MoveToPreviousSubwordStart,
7797 cx: &mut ViewContext<Self>,
7798 ) {
7799 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7800 s.move_cursors_with(|map, head, _| {
7801 (
7802 movement::previous_subword_start(map, head),
7803 SelectionGoal::None,
7804 )
7805 });
7806 })
7807 }
7808
7809 pub fn select_to_previous_word_start(
7810 &mut self,
7811 _: &SelectToPreviousWordStart,
7812 cx: &mut ViewContext<Self>,
7813 ) {
7814 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7815 s.move_heads_with(|map, head, _| {
7816 (
7817 movement::previous_word_start(map, head),
7818 SelectionGoal::None,
7819 )
7820 });
7821 })
7822 }
7823
7824 pub fn select_to_previous_subword_start(
7825 &mut self,
7826 _: &SelectToPreviousSubwordStart,
7827 cx: &mut ViewContext<Self>,
7828 ) {
7829 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7830 s.move_heads_with(|map, head, _| {
7831 (
7832 movement::previous_subword_start(map, head),
7833 SelectionGoal::None,
7834 )
7835 });
7836 })
7837 }
7838
7839 pub fn delete_to_previous_word_start(
7840 &mut self,
7841 action: &DeleteToPreviousWordStart,
7842 cx: &mut ViewContext<Self>,
7843 ) {
7844 self.transact(cx, |this, cx| {
7845 this.select_autoclose_pair(cx);
7846 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7847 let line_mode = s.line_mode;
7848 s.move_with(|map, selection| {
7849 if selection.is_empty() && !line_mode {
7850 let cursor = if action.ignore_newlines {
7851 movement::previous_word_start(map, selection.head())
7852 } else {
7853 movement::previous_word_start_or_newline(map, selection.head())
7854 };
7855 selection.set_head(cursor, SelectionGoal::None);
7856 }
7857 });
7858 });
7859 this.insert("", cx);
7860 });
7861 }
7862
7863 pub fn delete_to_previous_subword_start(
7864 &mut self,
7865 _: &DeleteToPreviousSubwordStart,
7866 cx: &mut ViewContext<Self>,
7867 ) {
7868 self.transact(cx, |this, cx| {
7869 this.select_autoclose_pair(cx);
7870 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7871 let line_mode = s.line_mode;
7872 s.move_with(|map, selection| {
7873 if selection.is_empty() && !line_mode {
7874 let cursor = movement::previous_subword_start(map, selection.head());
7875 selection.set_head(cursor, SelectionGoal::None);
7876 }
7877 });
7878 });
7879 this.insert("", cx);
7880 });
7881 }
7882
7883 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7884 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7885 s.move_cursors_with(|map, head, _| {
7886 (movement::next_word_end(map, head), SelectionGoal::None)
7887 });
7888 })
7889 }
7890
7891 pub fn move_to_next_subword_end(
7892 &mut self,
7893 _: &MoveToNextSubwordEnd,
7894 cx: &mut ViewContext<Self>,
7895 ) {
7896 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7897 s.move_cursors_with(|map, head, _| {
7898 (movement::next_subword_end(map, head), SelectionGoal::None)
7899 });
7900 })
7901 }
7902
7903 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7904 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7905 s.move_heads_with(|map, head, _| {
7906 (movement::next_word_end(map, head), SelectionGoal::None)
7907 });
7908 })
7909 }
7910
7911 pub fn select_to_next_subword_end(
7912 &mut self,
7913 _: &SelectToNextSubwordEnd,
7914 cx: &mut ViewContext<Self>,
7915 ) {
7916 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7917 s.move_heads_with(|map, head, _| {
7918 (movement::next_subword_end(map, head), SelectionGoal::None)
7919 });
7920 })
7921 }
7922
7923 pub fn delete_to_next_word_end(
7924 &mut self,
7925 action: &DeleteToNextWordEnd,
7926 cx: &mut ViewContext<Self>,
7927 ) {
7928 self.transact(cx, |this, cx| {
7929 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7930 let line_mode = s.line_mode;
7931 s.move_with(|map, selection| {
7932 if selection.is_empty() && !line_mode {
7933 let cursor = if action.ignore_newlines {
7934 movement::next_word_end(map, selection.head())
7935 } else {
7936 movement::next_word_end_or_newline(map, selection.head())
7937 };
7938 selection.set_head(cursor, SelectionGoal::None);
7939 }
7940 });
7941 });
7942 this.insert("", cx);
7943 });
7944 }
7945
7946 pub fn delete_to_next_subword_end(
7947 &mut self,
7948 _: &DeleteToNextSubwordEnd,
7949 cx: &mut ViewContext<Self>,
7950 ) {
7951 self.transact(cx, |this, cx| {
7952 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7953 s.move_with(|map, selection| {
7954 if selection.is_empty() {
7955 let cursor = movement::next_subword_end(map, selection.head());
7956 selection.set_head(cursor, SelectionGoal::None);
7957 }
7958 });
7959 });
7960 this.insert("", cx);
7961 });
7962 }
7963
7964 pub fn move_to_beginning_of_line(
7965 &mut self,
7966 action: &MoveToBeginningOfLine,
7967 cx: &mut ViewContext<Self>,
7968 ) {
7969 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7970 s.move_cursors_with(|map, head, _| {
7971 (
7972 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7973 SelectionGoal::None,
7974 )
7975 });
7976 })
7977 }
7978
7979 pub fn select_to_beginning_of_line(
7980 &mut self,
7981 action: &SelectToBeginningOfLine,
7982 cx: &mut ViewContext<Self>,
7983 ) {
7984 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7985 s.move_heads_with(|map, head, _| {
7986 (
7987 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7988 SelectionGoal::None,
7989 )
7990 });
7991 });
7992 }
7993
7994 pub fn delete_to_beginning_of_line(
7995 &mut self,
7996 _: &DeleteToBeginningOfLine,
7997 cx: &mut ViewContext<Self>,
7998 ) {
7999 self.transact(cx, |this, cx| {
8000 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8001 s.move_with(|_, selection| {
8002 selection.reversed = true;
8003 });
8004 });
8005
8006 this.select_to_beginning_of_line(
8007 &SelectToBeginningOfLine {
8008 stop_at_soft_wraps: false,
8009 },
8010 cx,
8011 );
8012 this.backspace(&Backspace, cx);
8013 });
8014 }
8015
8016 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
8017 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8018 s.move_cursors_with(|map, head, _| {
8019 (
8020 movement::line_end(map, head, action.stop_at_soft_wraps),
8021 SelectionGoal::None,
8022 )
8023 });
8024 })
8025 }
8026
8027 pub fn select_to_end_of_line(
8028 &mut self,
8029 action: &SelectToEndOfLine,
8030 cx: &mut ViewContext<Self>,
8031 ) {
8032 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8033 s.move_heads_with(|map, head, _| {
8034 (
8035 movement::line_end(map, head, action.stop_at_soft_wraps),
8036 SelectionGoal::None,
8037 )
8038 });
8039 })
8040 }
8041
8042 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
8043 self.transact(cx, |this, cx| {
8044 this.select_to_end_of_line(
8045 &SelectToEndOfLine {
8046 stop_at_soft_wraps: false,
8047 },
8048 cx,
8049 );
8050 this.delete(&Delete, cx);
8051 });
8052 }
8053
8054 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
8055 self.transact(cx, |this, cx| {
8056 this.select_to_end_of_line(
8057 &SelectToEndOfLine {
8058 stop_at_soft_wraps: false,
8059 },
8060 cx,
8061 );
8062 this.cut(&Cut, cx);
8063 });
8064 }
8065
8066 pub fn move_to_start_of_paragraph(
8067 &mut self,
8068 _: &MoveToStartOfParagraph,
8069 cx: &mut ViewContext<Self>,
8070 ) {
8071 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8072 cx.propagate();
8073 return;
8074 }
8075
8076 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8077 s.move_with(|map, selection| {
8078 selection.collapse_to(
8079 movement::start_of_paragraph(map, selection.head(), 1),
8080 SelectionGoal::None,
8081 )
8082 });
8083 })
8084 }
8085
8086 pub fn move_to_end_of_paragraph(
8087 &mut self,
8088 _: &MoveToEndOfParagraph,
8089 cx: &mut ViewContext<Self>,
8090 ) {
8091 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8092 cx.propagate();
8093 return;
8094 }
8095
8096 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8097 s.move_with(|map, selection| {
8098 selection.collapse_to(
8099 movement::end_of_paragraph(map, selection.head(), 1),
8100 SelectionGoal::None,
8101 )
8102 });
8103 })
8104 }
8105
8106 pub fn select_to_start_of_paragraph(
8107 &mut self,
8108 _: &SelectToStartOfParagraph,
8109 cx: &mut ViewContext<Self>,
8110 ) {
8111 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8112 cx.propagate();
8113 return;
8114 }
8115
8116 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8117 s.move_heads_with(|map, head, _| {
8118 (
8119 movement::start_of_paragraph(map, head, 1),
8120 SelectionGoal::None,
8121 )
8122 });
8123 })
8124 }
8125
8126 pub fn select_to_end_of_paragraph(
8127 &mut self,
8128 _: &SelectToEndOfParagraph,
8129 cx: &mut ViewContext<Self>,
8130 ) {
8131 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8132 cx.propagate();
8133 return;
8134 }
8135
8136 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8137 s.move_heads_with(|map, head, _| {
8138 (
8139 movement::end_of_paragraph(map, head, 1),
8140 SelectionGoal::None,
8141 )
8142 });
8143 })
8144 }
8145
8146 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8147 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8148 cx.propagate();
8149 return;
8150 }
8151
8152 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8153 s.select_ranges(vec![0..0]);
8154 });
8155 }
8156
8157 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8158 let mut selection = self.selections.last::<Point>(cx);
8159 selection.set_head(Point::zero(), SelectionGoal::None);
8160
8161 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8162 s.select(vec![selection]);
8163 });
8164 }
8165
8166 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8167 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8168 cx.propagate();
8169 return;
8170 }
8171
8172 let cursor = self.buffer.read(cx).read(cx).len();
8173 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8174 s.select_ranges(vec![cursor..cursor])
8175 });
8176 }
8177
8178 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8179 self.nav_history = nav_history;
8180 }
8181
8182 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8183 self.nav_history.as_ref()
8184 }
8185
8186 fn push_to_nav_history(
8187 &mut self,
8188 cursor_anchor: Anchor,
8189 new_position: Option<Point>,
8190 cx: &mut ViewContext<Self>,
8191 ) {
8192 if let Some(nav_history) = self.nav_history.as_mut() {
8193 let buffer = self.buffer.read(cx).read(cx);
8194 let cursor_position = cursor_anchor.to_point(&buffer);
8195 let scroll_state = self.scroll_manager.anchor();
8196 let scroll_top_row = scroll_state.top_row(&buffer);
8197 drop(buffer);
8198
8199 if let Some(new_position) = new_position {
8200 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8201 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8202 return;
8203 }
8204 }
8205
8206 nav_history.push(
8207 Some(NavigationData {
8208 cursor_anchor,
8209 cursor_position,
8210 scroll_anchor: scroll_state,
8211 scroll_top_row,
8212 }),
8213 cx,
8214 );
8215 }
8216 }
8217
8218 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8219 let buffer = self.buffer.read(cx).snapshot(cx);
8220 let mut selection = self.selections.first::<usize>(cx);
8221 selection.set_head(buffer.len(), SelectionGoal::None);
8222 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8223 s.select(vec![selection]);
8224 });
8225 }
8226
8227 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8228 let end = self.buffer.read(cx).read(cx).len();
8229 self.change_selections(None, cx, |s| {
8230 s.select_ranges(vec![0..end]);
8231 });
8232 }
8233
8234 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8235 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8236 let mut selections = self.selections.all::<Point>(cx);
8237 let max_point = display_map.buffer_snapshot.max_point();
8238 for selection in &mut selections {
8239 let rows = selection.spanned_rows(true, &display_map);
8240 selection.start = Point::new(rows.start.0, 0);
8241 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8242 selection.reversed = false;
8243 }
8244 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8245 s.select(selections);
8246 });
8247 }
8248
8249 pub fn split_selection_into_lines(
8250 &mut self,
8251 _: &SplitSelectionIntoLines,
8252 cx: &mut ViewContext<Self>,
8253 ) {
8254 let mut to_unfold = Vec::new();
8255 let mut new_selection_ranges = Vec::new();
8256 {
8257 let selections = self.selections.all::<Point>(cx);
8258 let buffer = self.buffer.read(cx).read(cx);
8259 for selection in selections {
8260 for row in selection.start.row..selection.end.row {
8261 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8262 new_selection_ranges.push(cursor..cursor);
8263 }
8264 new_selection_ranges.push(selection.end..selection.end);
8265 to_unfold.push(selection.start..selection.end);
8266 }
8267 }
8268 self.unfold_ranges(&to_unfold, true, true, cx);
8269 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8270 s.select_ranges(new_selection_ranges);
8271 });
8272 }
8273
8274 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8275 self.add_selection(true, cx);
8276 }
8277
8278 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8279 self.add_selection(false, cx);
8280 }
8281
8282 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8283 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8284 let mut selections = self.selections.all::<Point>(cx);
8285 let text_layout_details = self.text_layout_details(cx);
8286 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8287 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8288 let range = oldest_selection.display_range(&display_map).sorted();
8289
8290 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8291 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8292 let positions = start_x.min(end_x)..start_x.max(end_x);
8293
8294 selections.clear();
8295 let mut stack = Vec::new();
8296 for row in range.start.row().0..=range.end.row().0 {
8297 if let Some(selection) = self.selections.build_columnar_selection(
8298 &display_map,
8299 DisplayRow(row),
8300 &positions,
8301 oldest_selection.reversed,
8302 &text_layout_details,
8303 ) {
8304 stack.push(selection.id);
8305 selections.push(selection);
8306 }
8307 }
8308
8309 if above {
8310 stack.reverse();
8311 }
8312
8313 AddSelectionsState { above, stack }
8314 });
8315
8316 let last_added_selection = *state.stack.last().unwrap();
8317 let mut new_selections = Vec::new();
8318 if above == state.above {
8319 let end_row = if above {
8320 DisplayRow(0)
8321 } else {
8322 display_map.max_point().row()
8323 };
8324
8325 'outer: for selection in selections {
8326 if selection.id == last_added_selection {
8327 let range = selection.display_range(&display_map).sorted();
8328 debug_assert_eq!(range.start.row(), range.end.row());
8329 let mut row = range.start.row();
8330 let positions =
8331 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8332 px(start)..px(end)
8333 } else {
8334 let start_x =
8335 display_map.x_for_display_point(range.start, &text_layout_details);
8336 let end_x =
8337 display_map.x_for_display_point(range.end, &text_layout_details);
8338 start_x.min(end_x)..start_x.max(end_x)
8339 };
8340
8341 while row != end_row {
8342 if above {
8343 row.0 -= 1;
8344 } else {
8345 row.0 += 1;
8346 }
8347
8348 if let Some(new_selection) = self.selections.build_columnar_selection(
8349 &display_map,
8350 row,
8351 &positions,
8352 selection.reversed,
8353 &text_layout_details,
8354 ) {
8355 state.stack.push(new_selection.id);
8356 if above {
8357 new_selections.push(new_selection);
8358 new_selections.push(selection);
8359 } else {
8360 new_selections.push(selection);
8361 new_selections.push(new_selection);
8362 }
8363
8364 continue 'outer;
8365 }
8366 }
8367 }
8368
8369 new_selections.push(selection);
8370 }
8371 } else {
8372 new_selections = selections;
8373 new_selections.retain(|s| s.id != last_added_selection);
8374 state.stack.pop();
8375 }
8376
8377 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8378 s.select(new_selections);
8379 });
8380 if state.stack.len() > 1 {
8381 self.add_selections_state = Some(state);
8382 }
8383 }
8384
8385 pub fn select_next_match_internal(
8386 &mut self,
8387 display_map: &DisplaySnapshot,
8388 replace_newest: bool,
8389 autoscroll: Option<Autoscroll>,
8390 cx: &mut ViewContext<Self>,
8391 ) -> Result<()> {
8392 fn select_next_match_ranges(
8393 this: &mut Editor,
8394 range: Range<usize>,
8395 replace_newest: bool,
8396 auto_scroll: Option<Autoscroll>,
8397 cx: &mut ViewContext<Editor>,
8398 ) {
8399 this.unfold_ranges(&[range.clone()], false, true, cx);
8400 this.change_selections(auto_scroll, cx, |s| {
8401 if replace_newest {
8402 s.delete(s.newest_anchor().id);
8403 }
8404 s.insert_range(range.clone());
8405 });
8406 }
8407
8408 let buffer = &display_map.buffer_snapshot;
8409 let mut selections = self.selections.all::<usize>(cx);
8410 if let Some(mut select_next_state) = self.select_next_state.take() {
8411 let query = &select_next_state.query;
8412 if !select_next_state.done {
8413 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8414 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8415 let mut next_selected_range = None;
8416
8417 let bytes_after_last_selection =
8418 buffer.bytes_in_range(last_selection.end..buffer.len());
8419 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8420 let query_matches = query
8421 .stream_find_iter(bytes_after_last_selection)
8422 .map(|result| (last_selection.end, result))
8423 .chain(
8424 query
8425 .stream_find_iter(bytes_before_first_selection)
8426 .map(|result| (0, result)),
8427 );
8428
8429 for (start_offset, query_match) in query_matches {
8430 let query_match = query_match.unwrap(); // can only fail due to I/O
8431 let offset_range =
8432 start_offset + query_match.start()..start_offset + query_match.end();
8433 let display_range = offset_range.start.to_display_point(display_map)
8434 ..offset_range.end.to_display_point(display_map);
8435
8436 if !select_next_state.wordwise
8437 || (!movement::is_inside_word(display_map, display_range.start)
8438 && !movement::is_inside_word(display_map, display_range.end))
8439 {
8440 // TODO: This is n^2, because we might check all the selections
8441 if !selections
8442 .iter()
8443 .any(|selection| selection.range().overlaps(&offset_range))
8444 {
8445 next_selected_range = Some(offset_range);
8446 break;
8447 }
8448 }
8449 }
8450
8451 if let Some(next_selected_range) = next_selected_range {
8452 select_next_match_ranges(
8453 self,
8454 next_selected_range,
8455 replace_newest,
8456 autoscroll,
8457 cx,
8458 );
8459 } else {
8460 select_next_state.done = true;
8461 }
8462 }
8463
8464 self.select_next_state = Some(select_next_state);
8465 } else {
8466 let mut only_carets = true;
8467 let mut same_text_selected = true;
8468 let mut selected_text = None;
8469
8470 let mut selections_iter = selections.iter().peekable();
8471 while let Some(selection) = selections_iter.next() {
8472 if selection.start != selection.end {
8473 only_carets = false;
8474 }
8475
8476 if same_text_selected {
8477 if selected_text.is_none() {
8478 selected_text =
8479 Some(buffer.text_for_range(selection.range()).collect::<String>());
8480 }
8481
8482 if let Some(next_selection) = selections_iter.peek() {
8483 if next_selection.range().len() == selection.range().len() {
8484 let next_selected_text = buffer
8485 .text_for_range(next_selection.range())
8486 .collect::<String>();
8487 if Some(next_selected_text) != selected_text {
8488 same_text_selected = false;
8489 selected_text = None;
8490 }
8491 } else {
8492 same_text_selected = false;
8493 selected_text = None;
8494 }
8495 }
8496 }
8497 }
8498
8499 if only_carets {
8500 for selection in &mut selections {
8501 let word_range = movement::surrounding_word(
8502 display_map,
8503 selection.start.to_display_point(display_map),
8504 );
8505 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8506 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8507 selection.goal = SelectionGoal::None;
8508 selection.reversed = false;
8509 select_next_match_ranges(
8510 self,
8511 selection.start..selection.end,
8512 replace_newest,
8513 autoscroll,
8514 cx,
8515 );
8516 }
8517
8518 if selections.len() == 1 {
8519 let selection = selections
8520 .last()
8521 .expect("ensured that there's only one selection");
8522 let query = buffer
8523 .text_for_range(selection.start..selection.end)
8524 .collect::<String>();
8525 let is_empty = query.is_empty();
8526 let select_state = SelectNextState {
8527 query: AhoCorasick::new(&[query])?,
8528 wordwise: true,
8529 done: is_empty,
8530 };
8531 self.select_next_state = Some(select_state);
8532 } else {
8533 self.select_next_state = None;
8534 }
8535 } else if let Some(selected_text) = selected_text {
8536 self.select_next_state = Some(SelectNextState {
8537 query: AhoCorasick::new(&[selected_text])?,
8538 wordwise: false,
8539 done: false,
8540 });
8541 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8542 }
8543 }
8544 Ok(())
8545 }
8546
8547 pub fn select_all_matches(
8548 &mut self,
8549 _action: &SelectAllMatches,
8550 cx: &mut ViewContext<Self>,
8551 ) -> Result<()> {
8552 self.push_to_selection_history();
8553 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8554
8555 self.select_next_match_internal(&display_map, false, None, cx)?;
8556 let Some(select_next_state) = self.select_next_state.as_mut() else {
8557 return Ok(());
8558 };
8559 if select_next_state.done {
8560 return Ok(());
8561 }
8562
8563 let mut new_selections = self.selections.all::<usize>(cx);
8564
8565 let buffer = &display_map.buffer_snapshot;
8566 let query_matches = select_next_state
8567 .query
8568 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8569
8570 for query_match in query_matches {
8571 let query_match = query_match.unwrap(); // can only fail due to I/O
8572 let offset_range = query_match.start()..query_match.end();
8573 let display_range = offset_range.start.to_display_point(&display_map)
8574 ..offset_range.end.to_display_point(&display_map);
8575
8576 if !select_next_state.wordwise
8577 || (!movement::is_inside_word(&display_map, display_range.start)
8578 && !movement::is_inside_word(&display_map, display_range.end))
8579 {
8580 self.selections.change_with(cx, |selections| {
8581 new_selections.push(Selection {
8582 id: selections.new_selection_id(),
8583 start: offset_range.start,
8584 end: offset_range.end,
8585 reversed: false,
8586 goal: SelectionGoal::None,
8587 });
8588 });
8589 }
8590 }
8591
8592 new_selections.sort_by_key(|selection| selection.start);
8593 let mut ix = 0;
8594 while ix + 1 < new_selections.len() {
8595 let current_selection = &new_selections[ix];
8596 let next_selection = &new_selections[ix + 1];
8597 if current_selection.range().overlaps(&next_selection.range()) {
8598 if current_selection.id < next_selection.id {
8599 new_selections.remove(ix + 1);
8600 } else {
8601 new_selections.remove(ix);
8602 }
8603 } else {
8604 ix += 1;
8605 }
8606 }
8607
8608 select_next_state.done = true;
8609 self.unfold_ranges(
8610 &new_selections
8611 .iter()
8612 .map(|selection| selection.range())
8613 .collect::<Vec<_>>(),
8614 false,
8615 false,
8616 cx,
8617 );
8618 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8619 selections.select(new_selections)
8620 });
8621
8622 Ok(())
8623 }
8624
8625 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8626 self.push_to_selection_history();
8627 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8628 self.select_next_match_internal(
8629 &display_map,
8630 action.replace_newest,
8631 Some(Autoscroll::newest()),
8632 cx,
8633 )?;
8634 Ok(())
8635 }
8636
8637 pub fn select_previous(
8638 &mut self,
8639 action: &SelectPrevious,
8640 cx: &mut ViewContext<Self>,
8641 ) -> Result<()> {
8642 self.push_to_selection_history();
8643 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8644 let buffer = &display_map.buffer_snapshot;
8645 let mut selections = self.selections.all::<usize>(cx);
8646 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8647 let query = &select_prev_state.query;
8648 if !select_prev_state.done {
8649 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8650 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8651 let mut next_selected_range = None;
8652 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8653 let bytes_before_last_selection =
8654 buffer.reversed_bytes_in_range(0..last_selection.start);
8655 let bytes_after_first_selection =
8656 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8657 let query_matches = query
8658 .stream_find_iter(bytes_before_last_selection)
8659 .map(|result| (last_selection.start, result))
8660 .chain(
8661 query
8662 .stream_find_iter(bytes_after_first_selection)
8663 .map(|result| (buffer.len(), result)),
8664 );
8665 for (end_offset, query_match) in query_matches {
8666 let query_match = query_match.unwrap(); // can only fail due to I/O
8667 let offset_range =
8668 end_offset - query_match.end()..end_offset - query_match.start();
8669 let display_range = offset_range.start.to_display_point(&display_map)
8670 ..offset_range.end.to_display_point(&display_map);
8671
8672 if !select_prev_state.wordwise
8673 || (!movement::is_inside_word(&display_map, display_range.start)
8674 && !movement::is_inside_word(&display_map, display_range.end))
8675 {
8676 next_selected_range = Some(offset_range);
8677 break;
8678 }
8679 }
8680
8681 if let Some(next_selected_range) = next_selected_range {
8682 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8683 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8684 if action.replace_newest {
8685 s.delete(s.newest_anchor().id);
8686 }
8687 s.insert_range(next_selected_range);
8688 });
8689 } else {
8690 select_prev_state.done = true;
8691 }
8692 }
8693
8694 self.select_prev_state = Some(select_prev_state);
8695 } else {
8696 let mut only_carets = true;
8697 let mut same_text_selected = true;
8698 let mut selected_text = None;
8699
8700 let mut selections_iter = selections.iter().peekable();
8701 while let Some(selection) = selections_iter.next() {
8702 if selection.start != selection.end {
8703 only_carets = false;
8704 }
8705
8706 if same_text_selected {
8707 if selected_text.is_none() {
8708 selected_text =
8709 Some(buffer.text_for_range(selection.range()).collect::<String>());
8710 }
8711
8712 if let Some(next_selection) = selections_iter.peek() {
8713 if next_selection.range().len() == selection.range().len() {
8714 let next_selected_text = buffer
8715 .text_for_range(next_selection.range())
8716 .collect::<String>();
8717 if Some(next_selected_text) != selected_text {
8718 same_text_selected = false;
8719 selected_text = None;
8720 }
8721 } else {
8722 same_text_selected = false;
8723 selected_text = None;
8724 }
8725 }
8726 }
8727 }
8728
8729 if only_carets {
8730 for selection in &mut selections {
8731 let word_range = movement::surrounding_word(
8732 &display_map,
8733 selection.start.to_display_point(&display_map),
8734 );
8735 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8736 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8737 selection.goal = SelectionGoal::None;
8738 selection.reversed = false;
8739 }
8740 if selections.len() == 1 {
8741 let selection = selections
8742 .last()
8743 .expect("ensured that there's only one selection");
8744 let query = buffer
8745 .text_for_range(selection.start..selection.end)
8746 .collect::<String>();
8747 let is_empty = query.is_empty();
8748 let select_state = SelectNextState {
8749 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8750 wordwise: true,
8751 done: is_empty,
8752 };
8753 self.select_prev_state = Some(select_state);
8754 } else {
8755 self.select_prev_state = None;
8756 }
8757
8758 self.unfold_ranges(
8759 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8760 false,
8761 true,
8762 cx,
8763 );
8764 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8765 s.select(selections);
8766 });
8767 } else if let Some(selected_text) = selected_text {
8768 self.select_prev_state = Some(SelectNextState {
8769 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8770 wordwise: false,
8771 done: false,
8772 });
8773 self.select_previous(action, cx)?;
8774 }
8775 }
8776 Ok(())
8777 }
8778
8779 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8780 let text_layout_details = &self.text_layout_details(cx);
8781 self.transact(cx, |this, cx| {
8782 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8783 let mut edits = Vec::new();
8784 let mut selection_edit_ranges = Vec::new();
8785 let mut last_toggled_row = None;
8786 let snapshot = this.buffer.read(cx).read(cx);
8787 let empty_str: Arc<str> = Arc::default();
8788 let mut suffixes_inserted = Vec::new();
8789 let ignore_indent = action.ignore_indent;
8790
8791 fn comment_prefix_range(
8792 snapshot: &MultiBufferSnapshot,
8793 row: MultiBufferRow,
8794 comment_prefix: &str,
8795 comment_prefix_whitespace: &str,
8796 ignore_indent: bool,
8797 ) -> Range<Point> {
8798 let indent_size = if ignore_indent {
8799 0
8800 } else {
8801 snapshot.indent_size_for_line(row).len
8802 };
8803
8804 let start = Point::new(row.0, indent_size);
8805
8806 let mut line_bytes = snapshot
8807 .bytes_in_range(start..snapshot.max_point())
8808 .flatten()
8809 .copied();
8810
8811 // If this line currently begins with the line comment prefix, then record
8812 // the range containing the prefix.
8813 if line_bytes
8814 .by_ref()
8815 .take(comment_prefix.len())
8816 .eq(comment_prefix.bytes())
8817 {
8818 // Include any whitespace that matches the comment prefix.
8819 let matching_whitespace_len = line_bytes
8820 .zip(comment_prefix_whitespace.bytes())
8821 .take_while(|(a, b)| a == b)
8822 .count() as u32;
8823 let end = Point::new(
8824 start.row,
8825 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8826 );
8827 start..end
8828 } else {
8829 start..start
8830 }
8831 }
8832
8833 fn comment_suffix_range(
8834 snapshot: &MultiBufferSnapshot,
8835 row: MultiBufferRow,
8836 comment_suffix: &str,
8837 comment_suffix_has_leading_space: bool,
8838 ) -> Range<Point> {
8839 let end = Point::new(row.0, snapshot.line_len(row));
8840 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8841
8842 let mut line_end_bytes = snapshot
8843 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8844 .flatten()
8845 .copied();
8846
8847 let leading_space_len = if suffix_start_column > 0
8848 && line_end_bytes.next() == Some(b' ')
8849 && comment_suffix_has_leading_space
8850 {
8851 1
8852 } else {
8853 0
8854 };
8855
8856 // If this line currently begins with the line comment prefix, then record
8857 // the range containing the prefix.
8858 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8859 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8860 start..end
8861 } else {
8862 end..end
8863 }
8864 }
8865
8866 // TODO: Handle selections that cross excerpts
8867 for selection in &mut selections {
8868 let start_column = snapshot
8869 .indent_size_for_line(MultiBufferRow(selection.start.row))
8870 .len;
8871 let language = if let Some(language) =
8872 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8873 {
8874 language
8875 } else {
8876 continue;
8877 };
8878
8879 selection_edit_ranges.clear();
8880
8881 // If multiple selections contain a given row, avoid processing that
8882 // row more than once.
8883 let mut start_row = MultiBufferRow(selection.start.row);
8884 if last_toggled_row == Some(start_row) {
8885 start_row = start_row.next_row();
8886 }
8887 let end_row =
8888 if selection.end.row > selection.start.row && selection.end.column == 0 {
8889 MultiBufferRow(selection.end.row - 1)
8890 } else {
8891 MultiBufferRow(selection.end.row)
8892 };
8893 last_toggled_row = Some(end_row);
8894
8895 if start_row > end_row {
8896 continue;
8897 }
8898
8899 // If the language has line comments, toggle those.
8900 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8901
8902 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8903 if ignore_indent {
8904 full_comment_prefixes = full_comment_prefixes
8905 .into_iter()
8906 .map(|s| Arc::from(s.trim_end()))
8907 .collect();
8908 }
8909
8910 if !full_comment_prefixes.is_empty() {
8911 let first_prefix = full_comment_prefixes
8912 .first()
8913 .expect("prefixes is non-empty");
8914 let prefix_trimmed_lengths = full_comment_prefixes
8915 .iter()
8916 .map(|p| p.trim_end_matches(' ').len())
8917 .collect::<SmallVec<[usize; 4]>>();
8918
8919 let mut all_selection_lines_are_comments = true;
8920
8921 for row in start_row.0..=end_row.0 {
8922 let row = MultiBufferRow(row);
8923 if start_row < end_row && snapshot.is_line_blank(row) {
8924 continue;
8925 }
8926
8927 let prefix_range = full_comment_prefixes
8928 .iter()
8929 .zip(prefix_trimmed_lengths.iter().copied())
8930 .map(|(prefix, trimmed_prefix_len)| {
8931 comment_prefix_range(
8932 snapshot.deref(),
8933 row,
8934 &prefix[..trimmed_prefix_len],
8935 &prefix[trimmed_prefix_len..],
8936 ignore_indent,
8937 )
8938 })
8939 .max_by_key(|range| range.end.column - range.start.column)
8940 .expect("prefixes is non-empty");
8941
8942 if prefix_range.is_empty() {
8943 all_selection_lines_are_comments = false;
8944 }
8945
8946 selection_edit_ranges.push(prefix_range);
8947 }
8948
8949 if all_selection_lines_are_comments {
8950 edits.extend(
8951 selection_edit_ranges
8952 .iter()
8953 .cloned()
8954 .map(|range| (range, empty_str.clone())),
8955 );
8956 } else {
8957 let min_column = selection_edit_ranges
8958 .iter()
8959 .map(|range| range.start.column)
8960 .min()
8961 .unwrap_or(0);
8962 edits.extend(selection_edit_ranges.iter().map(|range| {
8963 let position = Point::new(range.start.row, min_column);
8964 (position..position, first_prefix.clone())
8965 }));
8966 }
8967 } else if let Some((full_comment_prefix, comment_suffix)) =
8968 language.block_comment_delimiters()
8969 {
8970 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8971 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8972 let prefix_range = comment_prefix_range(
8973 snapshot.deref(),
8974 start_row,
8975 comment_prefix,
8976 comment_prefix_whitespace,
8977 ignore_indent,
8978 );
8979 let suffix_range = comment_suffix_range(
8980 snapshot.deref(),
8981 end_row,
8982 comment_suffix.trim_start_matches(' '),
8983 comment_suffix.starts_with(' '),
8984 );
8985
8986 if prefix_range.is_empty() || suffix_range.is_empty() {
8987 edits.push((
8988 prefix_range.start..prefix_range.start,
8989 full_comment_prefix.clone(),
8990 ));
8991 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8992 suffixes_inserted.push((end_row, comment_suffix.len()));
8993 } else {
8994 edits.push((prefix_range, empty_str.clone()));
8995 edits.push((suffix_range, empty_str.clone()));
8996 }
8997 } else {
8998 continue;
8999 }
9000 }
9001
9002 drop(snapshot);
9003 this.buffer.update(cx, |buffer, cx| {
9004 buffer.edit(edits, None, cx);
9005 });
9006
9007 // Adjust selections so that they end before any comment suffixes that
9008 // were inserted.
9009 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
9010 let mut selections = this.selections.all::<Point>(cx);
9011 let snapshot = this.buffer.read(cx).read(cx);
9012 for selection in &mut selections {
9013 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9014 match row.cmp(&MultiBufferRow(selection.end.row)) {
9015 Ordering::Less => {
9016 suffixes_inserted.next();
9017 continue;
9018 }
9019 Ordering::Greater => break,
9020 Ordering::Equal => {
9021 if selection.end.column == snapshot.line_len(row) {
9022 if selection.is_empty() {
9023 selection.start.column -= suffix_len as u32;
9024 }
9025 selection.end.column -= suffix_len as u32;
9026 }
9027 break;
9028 }
9029 }
9030 }
9031 }
9032
9033 drop(snapshot);
9034 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
9035
9036 let selections = this.selections.all::<Point>(cx);
9037 let selections_on_single_row = selections.windows(2).all(|selections| {
9038 selections[0].start.row == selections[1].start.row
9039 && selections[0].end.row == selections[1].end.row
9040 && selections[0].start.row == selections[0].end.row
9041 });
9042 let selections_selecting = selections
9043 .iter()
9044 .any(|selection| selection.start != selection.end);
9045 let advance_downwards = action.advance_downwards
9046 && selections_on_single_row
9047 && !selections_selecting
9048 && !matches!(this.mode, EditorMode::SingleLine { .. });
9049
9050 if advance_downwards {
9051 let snapshot = this.buffer.read(cx).snapshot(cx);
9052
9053 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
9054 s.move_cursors_with(|display_snapshot, display_point, _| {
9055 let mut point = display_point.to_point(display_snapshot);
9056 point.row += 1;
9057 point = snapshot.clip_point(point, Bias::Left);
9058 let display_point = point.to_display_point(display_snapshot);
9059 let goal = SelectionGoal::HorizontalPosition(
9060 display_snapshot
9061 .x_for_display_point(display_point, text_layout_details)
9062 .into(),
9063 );
9064 (display_point, goal)
9065 })
9066 });
9067 }
9068 });
9069 }
9070
9071 pub fn select_enclosing_symbol(
9072 &mut self,
9073 _: &SelectEnclosingSymbol,
9074 cx: &mut ViewContext<Self>,
9075 ) {
9076 let buffer = self.buffer.read(cx).snapshot(cx);
9077 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9078
9079 fn update_selection(
9080 selection: &Selection<usize>,
9081 buffer_snap: &MultiBufferSnapshot,
9082 ) -> Option<Selection<usize>> {
9083 let cursor = selection.head();
9084 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9085 for symbol in symbols.iter().rev() {
9086 let start = symbol.range.start.to_offset(buffer_snap);
9087 let end = symbol.range.end.to_offset(buffer_snap);
9088 let new_range = start..end;
9089 if start < selection.start || end > selection.end {
9090 return Some(Selection {
9091 id: selection.id,
9092 start: new_range.start,
9093 end: new_range.end,
9094 goal: SelectionGoal::None,
9095 reversed: selection.reversed,
9096 });
9097 }
9098 }
9099 None
9100 }
9101
9102 let mut selected_larger_symbol = false;
9103 let new_selections = old_selections
9104 .iter()
9105 .map(|selection| match update_selection(selection, &buffer) {
9106 Some(new_selection) => {
9107 if new_selection.range() != selection.range() {
9108 selected_larger_symbol = true;
9109 }
9110 new_selection
9111 }
9112 None => selection.clone(),
9113 })
9114 .collect::<Vec<_>>();
9115
9116 if selected_larger_symbol {
9117 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9118 s.select(new_selections);
9119 });
9120 }
9121 }
9122
9123 pub fn select_larger_syntax_node(
9124 &mut self,
9125 _: &SelectLargerSyntaxNode,
9126 cx: &mut ViewContext<Self>,
9127 ) {
9128 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9129 let buffer = self.buffer.read(cx).snapshot(cx);
9130 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9131
9132 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9133 let mut selected_larger_node = false;
9134 let new_selections = old_selections
9135 .iter()
9136 .map(|selection| {
9137 let old_range = selection.start..selection.end;
9138 let mut new_range = old_range.clone();
9139 while let Some(containing_range) =
9140 buffer.range_for_syntax_ancestor(new_range.clone())
9141 {
9142 new_range = containing_range;
9143 if !display_map.intersects_fold(new_range.start)
9144 && !display_map.intersects_fold(new_range.end)
9145 {
9146 break;
9147 }
9148 }
9149
9150 selected_larger_node |= new_range != old_range;
9151 Selection {
9152 id: selection.id,
9153 start: new_range.start,
9154 end: new_range.end,
9155 goal: SelectionGoal::None,
9156 reversed: selection.reversed,
9157 }
9158 })
9159 .collect::<Vec<_>>();
9160
9161 if selected_larger_node {
9162 stack.push(old_selections);
9163 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9164 s.select(new_selections);
9165 });
9166 }
9167 self.select_larger_syntax_node_stack = stack;
9168 }
9169
9170 pub fn select_smaller_syntax_node(
9171 &mut self,
9172 _: &SelectSmallerSyntaxNode,
9173 cx: &mut ViewContext<Self>,
9174 ) {
9175 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9176 if let Some(selections) = stack.pop() {
9177 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9178 s.select(selections.to_vec());
9179 });
9180 }
9181 self.select_larger_syntax_node_stack = stack;
9182 }
9183
9184 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9185 if !EditorSettings::get_global(cx).gutter.runnables {
9186 self.clear_tasks();
9187 return Task::ready(());
9188 }
9189 let project = self.project.clone();
9190 cx.spawn(|this, mut cx| async move {
9191 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9192 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9193 }) else {
9194 return;
9195 };
9196
9197 let Some(project) = project else {
9198 return;
9199 };
9200
9201 let hide_runnables = project
9202 .update(&mut cx, |project, cx| {
9203 // Do not display any test indicators in non-dev server remote projects.
9204 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9205 })
9206 .unwrap_or(true);
9207 if hide_runnables {
9208 return;
9209 }
9210 let new_rows =
9211 cx.background_executor()
9212 .spawn({
9213 let snapshot = display_snapshot.clone();
9214 async move {
9215 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9216 }
9217 })
9218 .await;
9219 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9220
9221 this.update(&mut cx, |this, _| {
9222 this.clear_tasks();
9223 for (key, value) in rows {
9224 this.insert_tasks(key, value);
9225 }
9226 })
9227 .ok();
9228 })
9229 }
9230 fn fetch_runnable_ranges(
9231 snapshot: &DisplaySnapshot,
9232 range: Range<Anchor>,
9233 ) -> Vec<language::RunnableRange> {
9234 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9235 }
9236
9237 fn runnable_rows(
9238 project: Model<Project>,
9239 snapshot: DisplaySnapshot,
9240 runnable_ranges: Vec<RunnableRange>,
9241 mut cx: AsyncWindowContext,
9242 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9243 runnable_ranges
9244 .into_iter()
9245 .filter_map(|mut runnable| {
9246 let tasks = cx
9247 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9248 .ok()?;
9249 if tasks.is_empty() {
9250 return None;
9251 }
9252
9253 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9254
9255 let row = snapshot
9256 .buffer_snapshot
9257 .buffer_line_for_row(MultiBufferRow(point.row))?
9258 .1
9259 .start
9260 .row;
9261
9262 let context_range =
9263 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9264 Some((
9265 (runnable.buffer_id, row),
9266 RunnableTasks {
9267 templates: tasks,
9268 offset: MultiBufferOffset(runnable.run_range.start),
9269 context_range,
9270 column: point.column,
9271 extra_variables: runnable.extra_captures,
9272 },
9273 ))
9274 })
9275 .collect()
9276 }
9277
9278 fn templates_with_tags(
9279 project: &Model<Project>,
9280 runnable: &mut Runnable,
9281 cx: &WindowContext<'_>,
9282 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9283 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9284 let (worktree_id, file) = project
9285 .buffer_for_id(runnable.buffer, cx)
9286 .and_then(|buffer| buffer.read(cx).file())
9287 .map(|file| (file.worktree_id(cx), file.clone()))
9288 .unzip();
9289
9290 (
9291 project.task_store().read(cx).task_inventory().cloned(),
9292 worktree_id,
9293 file,
9294 )
9295 });
9296
9297 let tags = mem::take(&mut runnable.tags);
9298 let mut tags: Vec<_> = tags
9299 .into_iter()
9300 .flat_map(|tag| {
9301 let tag = tag.0.clone();
9302 inventory
9303 .as_ref()
9304 .into_iter()
9305 .flat_map(|inventory| {
9306 inventory.read(cx).list_tasks(
9307 file.clone(),
9308 Some(runnable.language.clone()),
9309 worktree_id,
9310 cx,
9311 )
9312 })
9313 .filter(move |(_, template)| {
9314 template.tags.iter().any(|source_tag| source_tag == &tag)
9315 })
9316 })
9317 .sorted_by_key(|(kind, _)| kind.to_owned())
9318 .collect();
9319 if let Some((leading_tag_source, _)) = tags.first() {
9320 // Strongest source wins; if we have worktree tag binding, prefer that to
9321 // global and language bindings;
9322 // if we have a global binding, prefer that to language binding.
9323 let first_mismatch = tags
9324 .iter()
9325 .position(|(tag_source, _)| tag_source != leading_tag_source);
9326 if let Some(index) = first_mismatch {
9327 tags.truncate(index);
9328 }
9329 }
9330
9331 tags
9332 }
9333
9334 pub fn move_to_enclosing_bracket(
9335 &mut self,
9336 _: &MoveToEnclosingBracket,
9337 cx: &mut ViewContext<Self>,
9338 ) {
9339 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9340 s.move_offsets_with(|snapshot, selection| {
9341 let Some(enclosing_bracket_ranges) =
9342 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9343 else {
9344 return;
9345 };
9346
9347 let mut best_length = usize::MAX;
9348 let mut best_inside = false;
9349 let mut best_in_bracket_range = false;
9350 let mut best_destination = None;
9351 for (open, close) in enclosing_bracket_ranges {
9352 let close = close.to_inclusive();
9353 let length = close.end() - open.start;
9354 let inside = selection.start >= open.end && selection.end <= *close.start();
9355 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9356 || close.contains(&selection.head());
9357
9358 // If best is next to a bracket and current isn't, skip
9359 if !in_bracket_range && best_in_bracket_range {
9360 continue;
9361 }
9362
9363 // Prefer smaller lengths unless best is inside and current isn't
9364 if length > best_length && (best_inside || !inside) {
9365 continue;
9366 }
9367
9368 best_length = length;
9369 best_inside = inside;
9370 best_in_bracket_range = in_bracket_range;
9371 best_destination = Some(
9372 if close.contains(&selection.start) && close.contains(&selection.end) {
9373 if inside {
9374 open.end
9375 } else {
9376 open.start
9377 }
9378 } else if inside {
9379 *close.start()
9380 } else {
9381 *close.end()
9382 },
9383 );
9384 }
9385
9386 if let Some(destination) = best_destination {
9387 selection.collapse_to(destination, SelectionGoal::None);
9388 }
9389 })
9390 });
9391 }
9392
9393 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9394 self.end_selection(cx);
9395 self.selection_history.mode = SelectionHistoryMode::Undoing;
9396 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9397 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9398 self.select_next_state = entry.select_next_state;
9399 self.select_prev_state = entry.select_prev_state;
9400 self.add_selections_state = entry.add_selections_state;
9401 self.request_autoscroll(Autoscroll::newest(), cx);
9402 }
9403 self.selection_history.mode = SelectionHistoryMode::Normal;
9404 }
9405
9406 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9407 self.end_selection(cx);
9408 self.selection_history.mode = SelectionHistoryMode::Redoing;
9409 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9410 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9411 self.select_next_state = entry.select_next_state;
9412 self.select_prev_state = entry.select_prev_state;
9413 self.add_selections_state = entry.add_selections_state;
9414 self.request_autoscroll(Autoscroll::newest(), cx);
9415 }
9416 self.selection_history.mode = SelectionHistoryMode::Normal;
9417 }
9418
9419 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9420 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9421 }
9422
9423 pub fn expand_excerpts_down(
9424 &mut self,
9425 action: &ExpandExcerptsDown,
9426 cx: &mut ViewContext<Self>,
9427 ) {
9428 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9429 }
9430
9431 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9432 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9433 }
9434
9435 pub fn expand_excerpts_for_direction(
9436 &mut self,
9437 lines: u32,
9438 direction: ExpandExcerptDirection,
9439 cx: &mut ViewContext<Self>,
9440 ) {
9441 let selections = self.selections.disjoint_anchors();
9442
9443 let lines = if lines == 0 {
9444 EditorSettings::get_global(cx).expand_excerpt_lines
9445 } else {
9446 lines
9447 };
9448
9449 self.buffer.update(cx, |buffer, cx| {
9450 buffer.expand_excerpts(
9451 selections
9452 .iter()
9453 .map(|selection| selection.head().excerpt_id)
9454 .dedup(),
9455 lines,
9456 direction,
9457 cx,
9458 )
9459 })
9460 }
9461
9462 pub fn expand_excerpt(
9463 &mut self,
9464 excerpt: ExcerptId,
9465 direction: ExpandExcerptDirection,
9466 cx: &mut ViewContext<Self>,
9467 ) {
9468 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9469 self.buffer.update(cx, |buffer, cx| {
9470 buffer.expand_excerpts([excerpt], lines, direction, cx)
9471 })
9472 }
9473
9474 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9475 self.go_to_diagnostic_impl(Direction::Next, cx)
9476 }
9477
9478 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9479 self.go_to_diagnostic_impl(Direction::Prev, cx)
9480 }
9481
9482 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9483 let buffer = self.buffer.read(cx).snapshot(cx);
9484 let selection = self.selections.newest::<usize>(cx);
9485
9486 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9487 if direction == Direction::Next {
9488 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9489 let (group_id, jump_to) = popover.activation_info();
9490 if self.activate_diagnostics(group_id, cx) {
9491 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9492 let mut new_selection = s.newest_anchor().clone();
9493 new_selection.collapse_to(jump_to, SelectionGoal::None);
9494 s.select_anchors(vec![new_selection.clone()]);
9495 });
9496 }
9497 return;
9498 }
9499 }
9500
9501 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9502 active_diagnostics
9503 .primary_range
9504 .to_offset(&buffer)
9505 .to_inclusive()
9506 });
9507 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9508 if active_primary_range.contains(&selection.head()) {
9509 *active_primary_range.start()
9510 } else {
9511 selection.head()
9512 }
9513 } else {
9514 selection.head()
9515 };
9516 let snapshot = self.snapshot(cx);
9517 loop {
9518 let diagnostics = if direction == Direction::Prev {
9519 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9520 } else {
9521 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9522 }
9523 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9524 let group = diagnostics
9525 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9526 // be sorted in a stable way
9527 // skip until we are at current active diagnostic, if it exists
9528 .skip_while(|entry| {
9529 (match direction {
9530 Direction::Prev => entry.range.start >= search_start,
9531 Direction::Next => entry.range.start <= search_start,
9532 }) && self
9533 .active_diagnostics
9534 .as_ref()
9535 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9536 })
9537 .find_map(|entry| {
9538 if entry.diagnostic.is_primary
9539 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9540 && !entry.range.is_empty()
9541 // if we match with the active diagnostic, skip it
9542 && Some(entry.diagnostic.group_id)
9543 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9544 {
9545 Some((entry.range, entry.diagnostic.group_id))
9546 } else {
9547 None
9548 }
9549 });
9550
9551 if let Some((primary_range, group_id)) = group {
9552 if self.activate_diagnostics(group_id, cx) {
9553 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9554 s.select(vec![Selection {
9555 id: selection.id,
9556 start: primary_range.start,
9557 end: primary_range.start,
9558 reversed: false,
9559 goal: SelectionGoal::None,
9560 }]);
9561 });
9562 }
9563 break;
9564 } else {
9565 // Cycle around to the start of the buffer, potentially moving back to the start of
9566 // the currently active diagnostic.
9567 active_primary_range.take();
9568 if direction == Direction::Prev {
9569 if search_start == buffer.len() {
9570 break;
9571 } else {
9572 search_start = buffer.len();
9573 }
9574 } else if search_start == 0 {
9575 break;
9576 } else {
9577 search_start = 0;
9578 }
9579 }
9580 }
9581 }
9582
9583 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9584 let snapshot = self
9585 .display_map
9586 .update(cx, |display_map, cx| display_map.snapshot(cx));
9587 let selection = self.selections.newest::<Point>(cx);
9588 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9589 }
9590
9591 fn go_to_hunk_after_position(
9592 &mut self,
9593 snapshot: &DisplaySnapshot,
9594 position: Point,
9595 cx: &mut ViewContext<'_, Editor>,
9596 ) -> Option<MultiBufferDiffHunk> {
9597 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9598 snapshot,
9599 position,
9600 false,
9601 snapshot
9602 .buffer_snapshot
9603 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9604 cx,
9605 ) {
9606 return Some(hunk);
9607 }
9608
9609 let wrapped_point = Point::zero();
9610 self.go_to_next_hunk_in_direction(
9611 snapshot,
9612 wrapped_point,
9613 true,
9614 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9615 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9616 ),
9617 cx,
9618 )
9619 }
9620
9621 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9622 let snapshot = self
9623 .display_map
9624 .update(cx, |display_map, cx| display_map.snapshot(cx));
9625 let selection = self.selections.newest::<Point>(cx);
9626
9627 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9628 }
9629
9630 fn go_to_hunk_before_position(
9631 &mut self,
9632 snapshot: &DisplaySnapshot,
9633 position: Point,
9634 cx: &mut ViewContext<'_, Editor>,
9635 ) -> Option<MultiBufferDiffHunk> {
9636 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9637 snapshot,
9638 position,
9639 false,
9640 snapshot
9641 .buffer_snapshot
9642 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9643 cx,
9644 ) {
9645 return Some(hunk);
9646 }
9647
9648 let wrapped_point = snapshot.buffer_snapshot.max_point();
9649 self.go_to_next_hunk_in_direction(
9650 snapshot,
9651 wrapped_point,
9652 true,
9653 snapshot
9654 .buffer_snapshot
9655 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9656 cx,
9657 )
9658 }
9659
9660 fn go_to_next_hunk_in_direction(
9661 &mut self,
9662 snapshot: &DisplaySnapshot,
9663 initial_point: Point,
9664 is_wrapped: bool,
9665 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9666 cx: &mut ViewContext<Editor>,
9667 ) -> Option<MultiBufferDiffHunk> {
9668 let display_point = initial_point.to_display_point(snapshot);
9669 let mut hunks = hunks
9670 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9671 .filter(|(display_hunk, _)| {
9672 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9673 })
9674 .dedup();
9675
9676 if let Some((display_hunk, hunk)) = hunks.next() {
9677 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9678 let row = display_hunk.start_display_row();
9679 let point = DisplayPoint::new(row, 0);
9680 s.select_display_ranges([point..point]);
9681 });
9682
9683 Some(hunk)
9684 } else {
9685 None
9686 }
9687 }
9688
9689 pub fn go_to_definition(
9690 &mut self,
9691 _: &GoToDefinition,
9692 cx: &mut ViewContext<Self>,
9693 ) -> Task<Result<Navigated>> {
9694 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9695 cx.spawn(|editor, mut cx| async move {
9696 if definition.await? == Navigated::Yes {
9697 return Ok(Navigated::Yes);
9698 }
9699 match editor.update(&mut cx, |editor, cx| {
9700 editor.find_all_references(&FindAllReferences, cx)
9701 })? {
9702 Some(references) => references.await,
9703 None => Ok(Navigated::No),
9704 }
9705 })
9706 }
9707
9708 pub fn go_to_declaration(
9709 &mut self,
9710 _: &GoToDeclaration,
9711 cx: &mut ViewContext<Self>,
9712 ) -> Task<Result<Navigated>> {
9713 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9714 }
9715
9716 pub fn go_to_declaration_split(
9717 &mut self,
9718 _: &GoToDeclaration,
9719 cx: &mut ViewContext<Self>,
9720 ) -> Task<Result<Navigated>> {
9721 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9722 }
9723
9724 pub fn go_to_implementation(
9725 &mut self,
9726 _: &GoToImplementation,
9727 cx: &mut ViewContext<Self>,
9728 ) -> Task<Result<Navigated>> {
9729 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9730 }
9731
9732 pub fn go_to_implementation_split(
9733 &mut self,
9734 _: &GoToImplementationSplit,
9735 cx: &mut ViewContext<Self>,
9736 ) -> Task<Result<Navigated>> {
9737 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9738 }
9739
9740 pub fn go_to_type_definition(
9741 &mut self,
9742 _: &GoToTypeDefinition,
9743 cx: &mut ViewContext<Self>,
9744 ) -> Task<Result<Navigated>> {
9745 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9746 }
9747
9748 pub fn go_to_definition_split(
9749 &mut self,
9750 _: &GoToDefinitionSplit,
9751 cx: &mut ViewContext<Self>,
9752 ) -> Task<Result<Navigated>> {
9753 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9754 }
9755
9756 pub fn go_to_type_definition_split(
9757 &mut self,
9758 _: &GoToTypeDefinitionSplit,
9759 cx: &mut ViewContext<Self>,
9760 ) -> Task<Result<Navigated>> {
9761 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9762 }
9763
9764 fn go_to_definition_of_kind(
9765 &mut self,
9766 kind: GotoDefinitionKind,
9767 split: bool,
9768 cx: &mut ViewContext<Self>,
9769 ) -> Task<Result<Navigated>> {
9770 let Some(provider) = self.semantics_provider.clone() else {
9771 return Task::ready(Ok(Navigated::No));
9772 };
9773 let head = self.selections.newest::<usize>(cx).head();
9774 let buffer = self.buffer.read(cx);
9775 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9776 text_anchor
9777 } else {
9778 return Task::ready(Ok(Navigated::No));
9779 };
9780
9781 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9782 return Task::ready(Ok(Navigated::No));
9783 };
9784
9785 cx.spawn(|editor, mut cx| async move {
9786 let definitions = definitions.await?;
9787 let navigated = editor
9788 .update(&mut cx, |editor, cx| {
9789 editor.navigate_to_hover_links(
9790 Some(kind),
9791 definitions
9792 .into_iter()
9793 .filter(|location| {
9794 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9795 })
9796 .map(HoverLink::Text)
9797 .collect::<Vec<_>>(),
9798 split,
9799 cx,
9800 )
9801 })?
9802 .await?;
9803 anyhow::Ok(navigated)
9804 })
9805 }
9806
9807 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9808 let position = self.selections.newest_anchor().head();
9809 let Some((buffer, buffer_position)) =
9810 self.buffer.read(cx).text_anchor_for_position(position, cx)
9811 else {
9812 return;
9813 };
9814
9815 cx.spawn(|editor, mut cx| async move {
9816 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9817 editor.update(&mut cx, |_, cx| {
9818 cx.open_url(&url);
9819 })
9820 } else {
9821 Ok(())
9822 }
9823 })
9824 .detach();
9825 }
9826
9827 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9828 let Some(workspace) = self.workspace() else {
9829 return;
9830 };
9831
9832 let position = self.selections.newest_anchor().head();
9833
9834 let Some((buffer, buffer_position)) =
9835 self.buffer.read(cx).text_anchor_for_position(position, cx)
9836 else {
9837 return;
9838 };
9839
9840 let project = self.project.clone();
9841
9842 cx.spawn(|_, mut cx| async move {
9843 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9844
9845 if let Some((_, path)) = result {
9846 workspace
9847 .update(&mut cx, |workspace, cx| {
9848 workspace.open_resolved_path(path, cx)
9849 })?
9850 .await?;
9851 }
9852 anyhow::Ok(())
9853 })
9854 .detach();
9855 }
9856
9857 pub(crate) fn navigate_to_hover_links(
9858 &mut self,
9859 kind: Option<GotoDefinitionKind>,
9860 mut definitions: Vec<HoverLink>,
9861 split: bool,
9862 cx: &mut ViewContext<Editor>,
9863 ) -> Task<Result<Navigated>> {
9864 // If there is one definition, just open it directly
9865 if definitions.len() == 1 {
9866 let definition = definitions.pop().unwrap();
9867
9868 enum TargetTaskResult {
9869 Location(Option<Location>),
9870 AlreadyNavigated,
9871 }
9872
9873 let target_task = match definition {
9874 HoverLink::Text(link) => {
9875 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9876 }
9877 HoverLink::InlayHint(lsp_location, server_id) => {
9878 let computation = self.compute_target_location(lsp_location, server_id, cx);
9879 cx.background_executor().spawn(async move {
9880 let location = computation.await?;
9881 Ok(TargetTaskResult::Location(location))
9882 })
9883 }
9884 HoverLink::Url(url) => {
9885 cx.open_url(&url);
9886 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9887 }
9888 HoverLink::File(path) => {
9889 if let Some(workspace) = self.workspace() {
9890 cx.spawn(|_, mut cx| async move {
9891 workspace
9892 .update(&mut cx, |workspace, cx| {
9893 workspace.open_resolved_path(path, cx)
9894 })?
9895 .await
9896 .map(|_| TargetTaskResult::AlreadyNavigated)
9897 })
9898 } else {
9899 Task::ready(Ok(TargetTaskResult::Location(None)))
9900 }
9901 }
9902 };
9903 cx.spawn(|editor, mut cx| async move {
9904 let target = match target_task.await.context("target resolution task")? {
9905 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9906 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9907 TargetTaskResult::Location(Some(target)) => target,
9908 };
9909
9910 editor.update(&mut cx, |editor, cx| {
9911 let Some(workspace) = editor.workspace() else {
9912 return Navigated::No;
9913 };
9914 let pane = workspace.read(cx).active_pane().clone();
9915
9916 let range = target.range.to_offset(target.buffer.read(cx));
9917 let range = editor.range_for_match(&range);
9918
9919 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9920 let buffer = target.buffer.read(cx);
9921 let range = check_multiline_range(buffer, range);
9922 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9923 s.select_ranges([range]);
9924 });
9925 } else {
9926 cx.window_context().defer(move |cx| {
9927 let target_editor: View<Self> =
9928 workspace.update(cx, |workspace, cx| {
9929 let pane = if split {
9930 workspace.adjacent_pane(cx)
9931 } else {
9932 workspace.active_pane().clone()
9933 };
9934
9935 workspace.open_project_item(
9936 pane,
9937 target.buffer.clone(),
9938 true,
9939 true,
9940 cx,
9941 )
9942 });
9943 target_editor.update(cx, |target_editor, cx| {
9944 // When selecting a definition in a different buffer, disable the nav history
9945 // to avoid creating a history entry at the previous cursor location.
9946 pane.update(cx, |pane, _| pane.disable_history());
9947 let buffer = target.buffer.read(cx);
9948 let range = check_multiline_range(buffer, range);
9949 target_editor.change_selections(
9950 Some(Autoscroll::focused()),
9951 cx,
9952 |s| {
9953 s.select_ranges([range]);
9954 },
9955 );
9956 pane.update(cx, |pane, _| pane.enable_history());
9957 });
9958 });
9959 }
9960 Navigated::Yes
9961 })
9962 })
9963 } else if !definitions.is_empty() {
9964 cx.spawn(|editor, mut cx| async move {
9965 let (title, location_tasks, workspace) = editor
9966 .update(&mut cx, |editor, cx| {
9967 let tab_kind = match kind {
9968 Some(GotoDefinitionKind::Implementation) => "Implementations",
9969 _ => "Definitions",
9970 };
9971 let title = definitions
9972 .iter()
9973 .find_map(|definition| match definition {
9974 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9975 let buffer = origin.buffer.read(cx);
9976 format!(
9977 "{} for {}",
9978 tab_kind,
9979 buffer
9980 .text_for_range(origin.range.clone())
9981 .collect::<String>()
9982 )
9983 }),
9984 HoverLink::InlayHint(_, _) => None,
9985 HoverLink::Url(_) => None,
9986 HoverLink::File(_) => None,
9987 })
9988 .unwrap_or(tab_kind.to_string());
9989 let location_tasks = definitions
9990 .into_iter()
9991 .map(|definition| match definition {
9992 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9993 HoverLink::InlayHint(lsp_location, server_id) => {
9994 editor.compute_target_location(lsp_location, server_id, cx)
9995 }
9996 HoverLink::Url(_) => Task::ready(Ok(None)),
9997 HoverLink::File(_) => Task::ready(Ok(None)),
9998 })
9999 .collect::<Vec<_>>();
10000 (title, location_tasks, editor.workspace().clone())
10001 })
10002 .context("location tasks preparation")?;
10003
10004 let locations = future::join_all(location_tasks)
10005 .await
10006 .into_iter()
10007 .filter_map(|location| location.transpose())
10008 .collect::<Result<_>>()
10009 .context("location tasks")?;
10010
10011 let Some(workspace) = workspace else {
10012 return Ok(Navigated::No);
10013 };
10014 let opened = workspace
10015 .update(&mut cx, |workspace, cx| {
10016 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
10017 })
10018 .ok();
10019
10020 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10021 })
10022 } else {
10023 Task::ready(Ok(Navigated::No))
10024 }
10025 }
10026
10027 fn compute_target_location(
10028 &self,
10029 lsp_location: lsp::Location,
10030 server_id: LanguageServerId,
10031 cx: &mut ViewContext<Self>,
10032 ) -> Task<anyhow::Result<Option<Location>>> {
10033 let Some(project) = self.project.clone() else {
10034 return Task::Ready(Some(Ok(None)));
10035 };
10036
10037 cx.spawn(move |editor, mut cx| async move {
10038 let location_task = editor.update(&mut cx, |_, cx| {
10039 project.update(cx, |project, cx| {
10040 let language_server_name = project
10041 .language_server_statuses(cx)
10042 .find(|(id, _)| server_id == *id)
10043 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10044 language_server_name.map(|language_server_name| {
10045 project.open_local_buffer_via_lsp(
10046 lsp_location.uri.clone(),
10047 server_id,
10048 language_server_name,
10049 cx,
10050 )
10051 })
10052 })
10053 })?;
10054 let location = match location_task {
10055 Some(task) => Some({
10056 let target_buffer_handle = task.await.context("open local buffer")?;
10057 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
10058 let target_start = target_buffer
10059 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
10060 let target_end = target_buffer
10061 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
10062 target_buffer.anchor_after(target_start)
10063 ..target_buffer.anchor_before(target_end)
10064 })?;
10065 Location {
10066 buffer: target_buffer_handle,
10067 range,
10068 }
10069 }),
10070 None => None,
10071 };
10072 Ok(location)
10073 })
10074 }
10075
10076 pub fn find_all_references(
10077 &mut self,
10078 _: &FindAllReferences,
10079 cx: &mut ViewContext<Self>,
10080 ) -> Option<Task<Result<Navigated>>> {
10081 let selection = self.selections.newest::<usize>(cx);
10082 let multi_buffer = self.buffer.read(cx);
10083 let head = selection.head();
10084
10085 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
10086 let head_anchor = multi_buffer_snapshot.anchor_at(
10087 head,
10088 if head < selection.tail() {
10089 Bias::Right
10090 } else {
10091 Bias::Left
10092 },
10093 );
10094
10095 match self
10096 .find_all_references_task_sources
10097 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
10098 {
10099 Ok(_) => {
10100 log::info!(
10101 "Ignoring repeated FindAllReferences invocation with the position of already running task"
10102 );
10103 return None;
10104 }
10105 Err(i) => {
10106 self.find_all_references_task_sources.insert(i, head_anchor);
10107 }
10108 }
10109
10110 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
10111 let workspace = self.workspace()?;
10112 let project = workspace.read(cx).project().clone();
10113 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
10114 Some(cx.spawn(|editor, mut cx| async move {
10115 let _cleanup = defer({
10116 let mut cx = cx.clone();
10117 move || {
10118 let _ = editor.update(&mut cx, |editor, _| {
10119 if let Ok(i) =
10120 editor
10121 .find_all_references_task_sources
10122 .binary_search_by(|anchor| {
10123 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
10124 })
10125 {
10126 editor.find_all_references_task_sources.remove(i);
10127 }
10128 });
10129 }
10130 });
10131
10132 let locations = references.await?;
10133 if locations.is_empty() {
10134 return anyhow::Ok(Navigated::No);
10135 }
10136
10137 workspace.update(&mut cx, |workspace, cx| {
10138 let title = locations
10139 .first()
10140 .as_ref()
10141 .map(|location| {
10142 let buffer = location.buffer.read(cx);
10143 format!(
10144 "References to `{}`",
10145 buffer
10146 .text_for_range(location.range.clone())
10147 .collect::<String>()
10148 )
10149 })
10150 .unwrap();
10151 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10152 Navigated::Yes
10153 })
10154 }))
10155 }
10156
10157 /// Opens a multibuffer with the given project locations in it
10158 pub fn open_locations_in_multibuffer(
10159 workspace: &mut Workspace,
10160 mut locations: Vec<Location>,
10161 title: String,
10162 split: bool,
10163 cx: &mut ViewContext<Workspace>,
10164 ) {
10165 // If there are multiple definitions, open them in a multibuffer
10166 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10167 let mut locations = locations.into_iter().peekable();
10168 let mut ranges_to_highlight = Vec::new();
10169 let capability = workspace.project().read(cx).capability();
10170
10171 let excerpt_buffer = cx.new_model(|cx| {
10172 let mut multibuffer = MultiBuffer::new(capability);
10173 while let Some(location) = locations.next() {
10174 let buffer = location.buffer.read(cx);
10175 let mut ranges_for_buffer = Vec::new();
10176 let range = location.range.to_offset(buffer);
10177 ranges_for_buffer.push(range.clone());
10178
10179 while let Some(next_location) = locations.peek() {
10180 if next_location.buffer == location.buffer {
10181 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10182 locations.next();
10183 } else {
10184 break;
10185 }
10186 }
10187
10188 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10189 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10190 location.buffer.clone(),
10191 ranges_for_buffer,
10192 DEFAULT_MULTIBUFFER_CONTEXT,
10193 cx,
10194 ))
10195 }
10196
10197 multibuffer.with_title(title)
10198 });
10199
10200 let editor = cx.new_view(|cx| {
10201 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10202 });
10203 editor.update(cx, |editor, cx| {
10204 if let Some(first_range) = ranges_to_highlight.first() {
10205 editor.change_selections(None, cx, |selections| {
10206 selections.clear_disjoint();
10207 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10208 });
10209 }
10210 editor.highlight_background::<Self>(
10211 &ranges_to_highlight,
10212 |theme| theme.editor_highlighted_line_background,
10213 cx,
10214 );
10215 });
10216
10217 let item = Box::new(editor);
10218 let item_id = item.item_id();
10219
10220 if split {
10221 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10222 } else {
10223 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10224 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10225 pane.close_current_preview_item(cx)
10226 } else {
10227 None
10228 }
10229 });
10230 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10231 }
10232 workspace.active_pane().update(cx, |pane, cx| {
10233 pane.set_preview_item_id(Some(item_id), cx);
10234 });
10235 }
10236
10237 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10238 use language::ToOffset as _;
10239
10240 let provider = self.semantics_provider.clone()?;
10241 let selection = self.selections.newest_anchor().clone();
10242 let (cursor_buffer, cursor_buffer_position) = self
10243 .buffer
10244 .read(cx)
10245 .text_anchor_for_position(selection.head(), cx)?;
10246 let (tail_buffer, cursor_buffer_position_end) = self
10247 .buffer
10248 .read(cx)
10249 .text_anchor_for_position(selection.tail(), cx)?;
10250 if tail_buffer != cursor_buffer {
10251 return None;
10252 }
10253
10254 let snapshot = cursor_buffer.read(cx).snapshot();
10255 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10256 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10257 let prepare_rename = provider
10258 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10259 .unwrap_or_else(|| Task::ready(Ok(None)));
10260 drop(snapshot);
10261
10262 Some(cx.spawn(|this, mut cx| async move {
10263 let rename_range = if let Some(range) = prepare_rename.await? {
10264 Some(range)
10265 } else {
10266 this.update(&mut cx, |this, cx| {
10267 let buffer = this.buffer.read(cx).snapshot(cx);
10268 let mut buffer_highlights = this
10269 .document_highlights_for_position(selection.head(), &buffer)
10270 .filter(|highlight| {
10271 highlight.start.excerpt_id == selection.head().excerpt_id
10272 && highlight.end.excerpt_id == selection.head().excerpt_id
10273 });
10274 buffer_highlights
10275 .next()
10276 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10277 })?
10278 };
10279 if let Some(rename_range) = rename_range {
10280 this.update(&mut cx, |this, cx| {
10281 let snapshot = cursor_buffer.read(cx).snapshot();
10282 let rename_buffer_range = rename_range.to_offset(&snapshot);
10283 let cursor_offset_in_rename_range =
10284 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10285 let cursor_offset_in_rename_range_end =
10286 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10287
10288 this.take_rename(false, cx);
10289 let buffer = this.buffer.read(cx).read(cx);
10290 let cursor_offset = selection.head().to_offset(&buffer);
10291 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10292 let rename_end = rename_start + rename_buffer_range.len();
10293 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10294 let mut old_highlight_id = None;
10295 let old_name: Arc<str> = buffer
10296 .chunks(rename_start..rename_end, true)
10297 .map(|chunk| {
10298 if old_highlight_id.is_none() {
10299 old_highlight_id = chunk.syntax_highlight_id;
10300 }
10301 chunk.text
10302 })
10303 .collect::<String>()
10304 .into();
10305
10306 drop(buffer);
10307
10308 // Position the selection in the rename editor so that it matches the current selection.
10309 this.show_local_selections = false;
10310 let rename_editor = cx.new_view(|cx| {
10311 let mut editor = Editor::single_line(cx);
10312 editor.buffer.update(cx, |buffer, cx| {
10313 buffer.edit([(0..0, old_name.clone())], None, cx)
10314 });
10315 let rename_selection_range = match cursor_offset_in_rename_range
10316 .cmp(&cursor_offset_in_rename_range_end)
10317 {
10318 Ordering::Equal => {
10319 editor.select_all(&SelectAll, cx);
10320 return editor;
10321 }
10322 Ordering::Less => {
10323 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10324 }
10325 Ordering::Greater => {
10326 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10327 }
10328 };
10329 if rename_selection_range.end > old_name.len() {
10330 editor.select_all(&SelectAll, cx);
10331 } else {
10332 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10333 s.select_ranges([rename_selection_range]);
10334 });
10335 }
10336 editor
10337 });
10338 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10339 if e == &EditorEvent::Focused {
10340 cx.emit(EditorEvent::FocusedIn)
10341 }
10342 })
10343 .detach();
10344
10345 let write_highlights =
10346 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10347 let read_highlights =
10348 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10349 let ranges = write_highlights
10350 .iter()
10351 .flat_map(|(_, ranges)| ranges.iter())
10352 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10353 .cloned()
10354 .collect();
10355
10356 this.highlight_text::<Rename>(
10357 ranges,
10358 HighlightStyle {
10359 fade_out: Some(0.6),
10360 ..Default::default()
10361 },
10362 cx,
10363 );
10364 let rename_focus_handle = rename_editor.focus_handle(cx);
10365 cx.focus(&rename_focus_handle);
10366 let block_id = this.insert_blocks(
10367 [BlockProperties {
10368 style: BlockStyle::Flex,
10369 placement: BlockPlacement::Below(range.start),
10370 height: 1,
10371 render: Box::new({
10372 let rename_editor = rename_editor.clone();
10373 move |cx: &mut BlockContext| {
10374 let mut text_style = cx.editor_style.text.clone();
10375 if let Some(highlight_style) = old_highlight_id
10376 .and_then(|h| h.style(&cx.editor_style.syntax))
10377 {
10378 text_style = text_style.highlight(highlight_style);
10379 }
10380 div()
10381 .pl(cx.anchor_x)
10382 .child(EditorElement::new(
10383 &rename_editor,
10384 EditorStyle {
10385 background: cx.theme().system().transparent,
10386 local_player: cx.editor_style.local_player,
10387 text: text_style,
10388 scrollbar_width: cx.editor_style.scrollbar_width,
10389 syntax: cx.editor_style.syntax.clone(),
10390 status: cx.editor_style.status.clone(),
10391 inlay_hints_style: HighlightStyle {
10392 font_weight: Some(FontWeight::BOLD),
10393 ..make_inlay_hints_style(cx)
10394 },
10395 suggestions_style: HighlightStyle {
10396 color: Some(cx.theme().status().predictive),
10397 ..HighlightStyle::default()
10398 },
10399 ..EditorStyle::default()
10400 },
10401 ))
10402 .into_any_element()
10403 }
10404 }),
10405 priority: 0,
10406 }],
10407 Some(Autoscroll::fit()),
10408 cx,
10409 )[0];
10410 this.pending_rename = Some(RenameState {
10411 range,
10412 old_name,
10413 editor: rename_editor,
10414 block_id,
10415 });
10416 })?;
10417 }
10418
10419 Ok(())
10420 }))
10421 }
10422
10423 pub fn confirm_rename(
10424 &mut self,
10425 _: &ConfirmRename,
10426 cx: &mut ViewContext<Self>,
10427 ) -> Option<Task<Result<()>>> {
10428 let rename = self.take_rename(false, cx)?;
10429 let workspace = self.workspace()?.downgrade();
10430 let (buffer, start) = self
10431 .buffer
10432 .read(cx)
10433 .text_anchor_for_position(rename.range.start, cx)?;
10434 let (end_buffer, _) = self
10435 .buffer
10436 .read(cx)
10437 .text_anchor_for_position(rename.range.end, cx)?;
10438 if buffer != end_buffer {
10439 return None;
10440 }
10441
10442 let old_name = rename.old_name;
10443 let new_name = rename.editor.read(cx).text(cx);
10444
10445 let rename = self.semantics_provider.as_ref()?.perform_rename(
10446 &buffer,
10447 start,
10448 new_name.clone(),
10449 cx,
10450 )?;
10451
10452 Some(cx.spawn(|editor, mut cx| async move {
10453 let project_transaction = rename.await?;
10454 Self::open_project_transaction(
10455 &editor,
10456 workspace,
10457 project_transaction,
10458 format!("Rename: {} → {}", old_name, new_name),
10459 cx.clone(),
10460 )
10461 .await?;
10462
10463 editor.update(&mut cx, |editor, cx| {
10464 editor.refresh_document_highlights(cx);
10465 })?;
10466 Ok(())
10467 }))
10468 }
10469
10470 fn take_rename(
10471 &mut self,
10472 moving_cursor: bool,
10473 cx: &mut ViewContext<Self>,
10474 ) -> Option<RenameState> {
10475 let rename = self.pending_rename.take()?;
10476 if rename.editor.focus_handle(cx).is_focused(cx) {
10477 cx.focus(&self.focus_handle);
10478 }
10479
10480 self.remove_blocks(
10481 [rename.block_id].into_iter().collect(),
10482 Some(Autoscroll::fit()),
10483 cx,
10484 );
10485 self.clear_highlights::<Rename>(cx);
10486 self.show_local_selections = true;
10487
10488 if moving_cursor {
10489 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10490 editor.selections.newest::<usize>(cx).head()
10491 });
10492
10493 // Update the selection to match the position of the selection inside
10494 // the rename editor.
10495 let snapshot = self.buffer.read(cx).read(cx);
10496 let rename_range = rename.range.to_offset(&snapshot);
10497 let cursor_in_editor = snapshot
10498 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10499 .min(rename_range.end);
10500 drop(snapshot);
10501
10502 self.change_selections(None, cx, |s| {
10503 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10504 });
10505 } else {
10506 self.refresh_document_highlights(cx);
10507 }
10508
10509 Some(rename)
10510 }
10511
10512 pub fn pending_rename(&self) -> Option<&RenameState> {
10513 self.pending_rename.as_ref()
10514 }
10515
10516 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10517 let project = match &self.project {
10518 Some(project) => project.clone(),
10519 None => return None,
10520 };
10521
10522 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10523 }
10524
10525 fn format_selections(
10526 &mut self,
10527 _: &FormatSelections,
10528 cx: &mut ViewContext<Self>,
10529 ) -> Option<Task<Result<()>>> {
10530 let project = match &self.project {
10531 Some(project) => project.clone(),
10532 None => return None,
10533 };
10534
10535 let selections = self
10536 .selections
10537 .all_adjusted(cx)
10538 .into_iter()
10539 .filter(|s| !s.is_empty())
10540 .collect_vec();
10541
10542 Some(self.perform_format(
10543 project,
10544 FormatTrigger::Manual,
10545 FormatTarget::Ranges(selections),
10546 cx,
10547 ))
10548 }
10549
10550 fn perform_format(
10551 &mut self,
10552 project: Model<Project>,
10553 trigger: FormatTrigger,
10554 target: FormatTarget,
10555 cx: &mut ViewContext<Self>,
10556 ) -> Task<Result<()>> {
10557 let buffer = self.buffer().clone();
10558 let mut buffers = buffer.read(cx).all_buffers();
10559 if trigger == FormatTrigger::Save {
10560 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10561 }
10562
10563 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10564 let format = project.update(cx, |project, cx| {
10565 project.format(buffers, true, trigger, target, cx)
10566 });
10567
10568 cx.spawn(|_, mut cx| async move {
10569 let transaction = futures::select_biased! {
10570 () = timeout => {
10571 log::warn!("timed out waiting for formatting");
10572 None
10573 }
10574 transaction = format.log_err().fuse() => transaction,
10575 };
10576
10577 buffer
10578 .update(&mut cx, |buffer, cx| {
10579 if let Some(transaction) = transaction {
10580 if !buffer.is_singleton() {
10581 buffer.push_transaction(&transaction.0, cx);
10582 }
10583 }
10584
10585 cx.notify();
10586 })
10587 .ok();
10588
10589 Ok(())
10590 })
10591 }
10592
10593 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10594 if let Some(project) = self.project.clone() {
10595 self.buffer.update(cx, |multi_buffer, cx| {
10596 project.update(cx, |project, cx| {
10597 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10598 });
10599 })
10600 }
10601 }
10602
10603 fn cancel_language_server_work(
10604 &mut self,
10605 _: &actions::CancelLanguageServerWork,
10606 cx: &mut ViewContext<Self>,
10607 ) {
10608 if let Some(project) = self.project.clone() {
10609 self.buffer.update(cx, |multi_buffer, cx| {
10610 project.update(cx, |project, cx| {
10611 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10612 });
10613 })
10614 }
10615 }
10616
10617 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10618 cx.show_character_palette();
10619 }
10620
10621 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10622 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10623 let buffer = self.buffer.read(cx).snapshot(cx);
10624 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10625 let is_valid = buffer
10626 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10627 .any(|entry| {
10628 entry.diagnostic.is_primary
10629 && !entry.range.is_empty()
10630 && entry.range.start == primary_range_start
10631 && entry.diagnostic.message == active_diagnostics.primary_message
10632 });
10633
10634 if is_valid != active_diagnostics.is_valid {
10635 active_diagnostics.is_valid = is_valid;
10636 let mut new_styles = HashMap::default();
10637 for (block_id, diagnostic) in &active_diagnostics.blocks {
10638 new_styles.insert(
10639 *block_id,
10640 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10641 );
10642 }
10643 self.display_map.update(cx, |display_map, _cx| {
10644 display_map.replace_blocks(new_styles)
10645 });
10646 }
10647 }
10648 }
10649
10650 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10651 self.dismiss_diagnostics(cx);
10652 let snapshot = self.snapshot(cx);
10653 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10654 let buffer = self.buffer.read(cx).snapshot(cx);
10655
10656 let mut primary_range = None;
10657 let mut primary_message = None;
10658 let mut group_end = Point::zero();
10659 let diagnostic_group = buffer
10660 .diagnostic_group::<MultiBufferPoint>(group_id)
10661 .filter_map(|entry| {
10662 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10663 && (entry.range.start.row == entry.range.end.row
10664 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10665 {
10666 return None;
10667 }
10668 if entry.range.end > group_end {
10669 group_end = entry.range.end;
10670 }
10671 if entry.diagnostic.is_primary {
10672 primary_range = Some(entry.range.clone());
10673 primary_message = Some(entry.diagnostic.message.clone());
10674 }
10675 Some(entry)
10676 })
10677 .collect::<Vec<_>>();
10678 let primary_range = primary_range?;
10679 let primary_message = primary_message?;
10680 let primary_range =
10681 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10682
10683 let blocks = display_map
10684 .insert_blocks(
10685 diagnostic_group.iter().map(|entry| {
10686 let diagnostic = entry.diagnostic.clone();
10687 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10688 BlockProperties {
10689 style: BlockStyle::Fixed,
10690 placement: BlockPlacement::Below(
10691 buffer.anchor_after(entry.range.start),
10692 ),
10693 height: message_height,
10694 render: diagnostic_block_renderer(diagnostic, None, true, true),
10695 priority: 0,
10696 }
10697 }),
10698 cx,
10699 )
10700 .into_iter()
10701 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10702 .collect();
10703
10704 Some(ActiveDiagnosticGroup {
10705 primary_range,
10706 primary_message,
10707 group_id,
10708 blocks,
10709 is_valid: true,
10710 })
10711 });
10712 self.active_diagnostics.is_some()
10713 }
10714
10715 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10716 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10717 self.display_map.update(cx, |display_map, cx| {
10718 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10719 });
10720 cx.notify();
10721 }
10722 }
10723
10724 pub fn set_selections_from_remote(
10725 &mut self,
10726 selections: Vec<Selection<Anchor>>,
10727 pending_selection: Option<Selection<Anchor>>,
10728 cx: &mut ViewContext<Self>,
10729 ) {
10730 let old_cursor_position = self.selections.newest_anchor().head();
10731 self.selections.change_with(cx, |s| {
10732 s.select_anchors(selections);
10733 if let Some(pending_selection) = pending_selection {
10734 s.set_pending(pending_selection, SelectMode::Character);
10735 } else {
10736 s.clear_pending();
10737 }
10738 });
10739 self.selections_did_change(false, &old_cursor_position, true, cx);
10740 }
10741
10742 fn push_to_selection_history(&mut self) {
10743 self.selection_history.push(SelectionHistoryEntry {
10744 selections: self.selections.disjoint_anchors(),
10745 select_next_state: self.select_next_state.clone(),
10746 select_prev_state: self.select_prev_state.clone(),
10747 add_selections_state: self.add_selections_state.clone(),
10748 });
10749 }
10750
10751 pub fn transact(
10752 &mut self,
10753 cx: &mut ViewContext<Self>,
10754 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10755 ) -> Option<TransactionId> {
10756 self.start_transaction_at(Instant::now(), cx);
10757 update(self, cx);
10758 self.end_transaction_at(Instant::now(), cx)
10759 }
10760
10761 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10762 self.end_selection(cx);
10763 if let Some(tx_id) = self
10764 .buffer
10765 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10766 {
10767 self.selection_history
10768 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10769 cx.emit(EditorEvent::TransactionBegun {
10770 transaction_id: tx_id,
10771 })
10772 }
10773 }
10774
10775 fn end_transaction_at(
10776 &mut self,
10777 now: Instant,
10778 cx: &mut ViewContext<Self>,
10779 ) -> Option<TransactionId> {
10780 if let Some(transaction_id) = self
10781 .buffer
10782 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10783 {
10784 if let Some((_, end_selections)) =
10785 self.selection_history.transaction_mut(transaction_id)
10786 {
10787 *end_selections = Some(self.selections.disjoint_anchors());
10788 } else {
10789 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10790 }
10791
10792 cx.emit(EditorEvent::Edited { transaction_id });
10793 Some(transaction_id)
10794 } else {
10795 None
10796 }
10797 }
10798
10799 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10800 let selection = self.selections.newest::<Point>(cx);
10801
10802 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10803 let range = if selection.is_empty() {
10804 let point = selection.head().to_display_point(&display_map);
10805 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10806 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10807 .to_point(&display_map);
10808 start..end
10809 } else {
10810 selection.range()
10811 };
10812 if display_map.folds_in_range(range).next().is_some() {
10813 self.unfold_lines(&Default::default(), cx)
10814 } else {
10815 self.fold(&Default::default(), cx)
10816 }
10817 }
10818
10819 pub fn toggle_fold_recursive(
10820 &mut self,
10821 _: &actions::ToggleFoldRecursive,
10822 cx: &mut ViewContext<Self>,
10823 ) {
10824 let selection = self.selections.newest::<Point>(cx);
10825
10826 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10827 let range = if selection.is_empty() {
10828 let point = selection.head().to_display_point(&display_map);
10829 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10830 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10831 .to_point(&display_map);
10832 start..end
10833 } else {
10834 selection.range()
10835 };
10836 if display_map.folds_in_range(range).next().is_some() {
10837 self.unfold_recursive(&Default::default(), cx)
10838 } else {
10839 self.fold_recursive(&Default::default(), cx)
10840 }
10841 }
10842
10843 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10844 let mut fold_ranges = Vec::new();
10845 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10846 let selections = self.selections.all_adjusted(cx);
10847
10848 for selection in selections {
10849 let range = selection.range().sorted();
10850 let buffer_start_row = range.start.row;
10851
10852 if range.start.row != range.end.row {
10853 let mut found = false;
10854 let mut row = range.start.row;
10855 while row <= range.end.row {
10856 if let Some((foldable_range, fold_text)) =
10857 { display_map.foldable_range(MultiBufferRow(row)) }
10858 {
10859 found = true;
10860 row = foldable_range.end.row + 1;
10861 fold_ranges.push((foldable_range, fold_text));
10862 } else {
10863 row += 1
10864 }
10865 }
10866 if found {
10867 continue;
10868 }
10869 }
10870
10871 for row in (0..=range.start.row).rev() {
10872 if let Some((foldable_range, fold_text)) =
10873 display_map.foldable_range(MultiBufferRow(row))
10874 {
10875 if foldable_range.end.row >= buffer_start_row {
10876 fold_ranges.push((foldable_range, fold_text));
10877 if row <= range.start.row {
10878 break;
10879 }
10880 }
10881 }
10882 }
10883 }
10884
10885 self.fold_ranges(fold_ranges, true, cx);
10886 }
10887
10888 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10889 let fold_at_level = fold_at.level;
10890 let snapshot = self.buffer.read(cx).snapshot(cx);
10891 let mut fold_ranges = Vec::new();
10892 let mut stack = vec![(0, snapshot.max_buffer_row().0, 1)];
10893
10894 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10895 while start_row < end_row {
10896 match self.snapshot(cx).foldable_range(MultiBufferRow(start_row)) {
10897 Some(foldable_range) => {
10898 let nested_start_row = foldable_range.0.start.row + 1;
10899 let nested_end_row = foldable_range.0.end.row;
10900
10901 if current_level < fold_at_level {
10902 stack.push((nested_start_row, nested_end_row, current_level + 1));
10903 } else if current_level == fold_at_level {
10904 fold_ranges.push(foldable_range);
10905 }
10906
10907 start_row = nested_end_row + 1;
10908 }
10909 None => start_row += 1,
10910 }
10911 }
10912 }
10913
10914 self.fold_ranges(fold_ranges, true, cx);
10915 }
10916
10917 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10918 let mut fold_ranges = Vec::new();
10919 let snapshot = self.buffer.read(cx).snapshot(cx);
10920
10921 for row in 0..snapshot.max_buffer_row().0 {
10922 if let Some(foldable_range) = self.snapshot(cx).foldable_range(MultiBufferRow(row)) {
10923 fold_ranges.push(foldable_range);
10924 }
10925 }
10926
10927 self.fold_ranges(fold_ranges, true, cx);
10928 }
10929
10930 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10931 let mut fold_ranges = Vec::new();
10932 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10933 let selections = self.selections.all_adjusted(cx);
10934
10935 for selection in selections {
10936 let range = selection.range().sorted();
10937 let buffer_start_row = range.start.row;
10938
10939 if range.start.row != range.end.row {
10940 let mut found = false;
10941 for row in range.start.row..=range.end.row {
10942 if let Some((foldable_range, fold_text)) =
10943 { display_map.foldable_range(MultiBufferRow(row)) }
10944 {
10945 found = true;
10946 fold_ranges.push((foldable_range, fold_text));
10947 }
10948 }
10949 if found {
10950 continue;
10951 }
10952 }
10953
10954 for row in (0..=range.start.row).rev() {
10955 if let Some((foldable_range, fold_text)) =
10956 display_map.foldable_range(MultiBufferRow(row))
10957 {
10958 if foldable_range.end.row >= buffer_start_row {
10959 fold_ranges.push((foldable_range, fold_text));
10960 } else {
10961 break;
10962 }
10963 }
10964 }
10965 }
10966
10967 self.fold_ranges(fold_ranges, true, cx);
10968 }
10969
10970 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10971 let buffer_row = fold_at.buffer_row;
10972 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10973
10974 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10975 let autoscroll = self
10976 .selections
10977 .all::<Point>(cx)
10978 .iter()
10979 .any(|selection| fold_range.overlaps(&selection.range()));
10980
10981 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10982 }
10983 }
10984
10985 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10986 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10987 let buffer = &display_map.buffer_snapshot;
10988 let selections = self.selections.all::<Point>(cx);
10989 let ranges = selections
10990 .iter()
10991 .map(|s| {
10992 let range = s.display_range(&display_map).sorted();
10993 let mut start = range.start.to_point(&display_map);
10994 let mut end = range.end.to_point(&display_map);
10995 start.column = 0;
10996 end.column = buffer.line_len(MultiBufferRow(end.row));
10997 start..end
10998 })
10999 .collect::<Vec<_>>();
11000
11001 self.unfold_ranges(&ranges, true, true, cx);
11002 }
11003
11004 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
11005 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11006 let selections = self.selections.all::<Point>(cx);
11007 let ranges = selections
11008 .iter()
11009 .map(|s| {
11010 let mut range = s.display_range(&display_map).sorted();
11011 *range.start.column_mut() = 0;
11012 *range.end.column_mut() = display_map.line_len(range.end.row());
11013 let start = range.start.to_point(&display_map);
11014 let end = range.end.to_point(&display_map);
11015 start..end
11016 })
11017 .collect::<Vec<_>>();
11018
11019 self.unfold_ranges(&ranges, true, true, cx);
11020 }
11021
11022 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
11023 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11024
11025 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
11026 ..Point::new(
11027 unfold_at.buffer_row.0,
11028 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
11029 );
11030
11031 let autoscroll = self
11032 .selections
11033 .all::<Point>(cx)
11034 .iter()
11035 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
11036
11037 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
11038 }
11039
11040 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11041 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11042 self.unfold_ranges(
11043 &[Point::zero()..display_map.max_point().to_point(&display_map)],
11044 true,
11045 true,
11046 cx,
11047 );
11048 }
11049
11050 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11051 let selections = self.selections.all::<Point>(cx);
11052 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11053 let line_mode = self.selections.line_mode;
11054 let ranges = selections.into_iter().map(|s| {
11055 if line_mode {
11056 let start = Point::new(s.start.row, 0);
11057 let end = Point::new(
11058 s.end.row,
11059 display_map
11060 .buffer_snapshot
11061 .line_len(MultiBufferRow(s.end.row)),
11062 );
11063 (start..end, display_map.fold_placeholder.clone())
11064 } else {
11065 (s.start..s.end, display_map.fold_placeholder.clone())
11066 }
11067 });
11068 self.fold_ranges(ranges, true, cx);
11069 }
11070
11071 pub fn fold_ranges<T: ToOffset + Clone>(
11072 &mut self,
11073 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
11074 auto_scroll: bool,
11075 cx: &mut ViewContext<Self>,
11076 ) {
11077 let mut fold_ranges = Vec::new();
11078 let mut buffers_affected = HashMap::default();
11079 let multi_buffer = self.buffer().read(cx);
11080 for (fold_range, fold_text) in ranges {
11081 if let Some((_, buffer, _)) =
11082 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
11083 {
11084 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11085 };
11086 fold_ranges.push((fold_range, fold_text));
11087 }
11088
11089 let mut ranges = fold_ranges.into_iter().peekable();
11090 if ranges.peek().is_some() {
11091 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
11092
11093 if auto_scroll {
11094 self.request_autoscroll(Autoscroll::fit(), cx);
11095 }
11096
11097 for buffer in buffers_affected.into_values() {
11098 self.sync_expanded_diff_hunks(buffer, cx);
11099 }
11100
11101 cx.notify();
11102
11103 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11104 // Clear diagnostics block when folding a range that contains it.
11105 let snapshot = self.snapshot(cx);
11106 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11107 drop(snapshot);
11108 self.active_diagnostics = Some(active_diagnostics);
11109 self.dismiss_diagnostics(cx);
11110 } else {
11111 self.active_diagnostics = Some(active_diagnostics);
11112 }
11113 }
11114
11115 self.scrollbar_marker_state.dirty = true;
11116 }
11117 }
11118
11119 /// Removes any folds whose ranges intersect any of the given ranges.
11120 pub fn unfold_ranges<T: ToOffset + Clone>(
11121 &mut self,
11122 ranges: &[Range<T>],
11123 inclusive: bool,
11124 auto_scroll: bool,
11125 cx: &mut ViewContext<Self>,
11126 ) {
11127 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11128 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
11129 });
11130 }
11131
11132 /// Removes any folds with the given ranges.
11133 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11134 &mut self,
11135 ranges: &[Range<T>],
11136 type_id: TypeId,
11137 auto_scroll: bool,
11138 cx: &mut ViewContext<Self>,
11139 ) {
11140 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11141 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11142 });
11143 }
11144
11145 fn remove_folds_with<T: ToOffset + Clone>(
11146 &mut self,
11147 ranges: &[Range<T>],
11148 auto_scroll: bool,
11149 cx: &mut ViewContext<Self>,
11150 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11151 ) {
11152 if ranges.is_empty() {
11153 return;
11154 }
11155
11156 let mut buffers_affected = HashMap::default();
11157 let multi_buffer = self.buffer().read(cx);
11158 for range in ranges {
11159 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11160 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11161 };
11162 }
11163
11164 self.display_map.update(cx, update);
11165 if auto_scroll {
11166 self.request_autoscroll(Autoscroll::fit(), cx);
11167 }
11168
11169 for buffer in buffers_affected.into_values() {
11170 self.sync_expanded_diff_hunks(buffer, cx);
11171 }
11172
11173 cx.notify();
11174 self.scrollbar_marker_state.dirty = true;
11175 self.active_indent_guides_state.dirty = true;
11176 }
11177
11178 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11179 self.display_map.read(cx).fold_placeholder.clone()
11180 }
11181
11182 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11183 if hovered != self.gutter_hovered {
11184 self.gutter_hovered = hovered;
11185 cx.notify();
11186 }
11187 }
11188
11189 pub fn insert_blocks(
11190 &mut self,
11191 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11192 autoscroll: Option<Autoscroll>,
11193 cx: &mut ViewContext<Self>,
11194 ) -> Vec<CustomBlockId> {
11195 let blocks = self
11196 .display_map
11197 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11198 if let Some(autoscroll) = autoscroll {
11199 self.request_autoscroll(autoscroll, cx);
11200 }
11201 cx.notify();
11202 blocks
11203 }
11204
11205 pub fn resize_blocks(
11206 &mut self,
11207 heights: HashMap<CustomBlockId, u32>,
11208 autoscroll: Option<Autoscroll>,
11209 cx: &mut ViewContext<Self>,
11210 ) {
11211 self.display_map
11212 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11213 if let Some(autoscroll) = autoscroll {
11214 self.request_autoscroll(autoscroll, cx);
11215 }
11216 cx.notify();
11217 }
11218
11219 pub fn replace_blocks(
11220 &mut self,
11221 renderers: HashMap<CustomBlockId, RenderBlock>,
11222 autoscroll: Option<Autoscroll>,
11223 cx: &mut ViewContext<Self>,
11224 ) {
11225 self.display_map
11226 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11227 if let Some(autoscroll) = autoscroll {
11228 self.request_autoscroll(autoscroll, cx);
11229 }
11230 cx.notify();
11231 }
11232
11233 pub fn remove_blocks(
11234 &mut self,
11235 block_ids: HashSet<CustomBlockId>,
11236 autoscroll: Option<Autoscroll>,
11237 cx: &mut ViewContext<Self>,
11238 ) {
11239 self.display_map.update(cx, |display_map, cx| {
11240 display_map.remove_blocks(block_ids, cx)
11241 });
11242 if let Some(autoscroll) = autoscroll {
11243 self.request_autoscroll(autoscroll, cx);
11244 }
11245 cx.notify();
11246 }
11247
11248 pub fn row_for_block(
11249 &self,
11250 block_id: CustomBlockId,
11251 cx: &mut ViewContext<Self>,
11252 ) -> Option<DisplayRow> {
11253 self.display_map
11254 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11255 }
11256
11257 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11258 self.focused_block = Some(focused_block);
11259 }
11260
11261 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11262 self.focused_block.take()
11263 }
11264
11265 pub fn insert_creases(
11266 &mut self,
11267 creases: impl IntoIterator<Item = Crease>,
11268 cx: &mut ViewContext<Self>,
11269 ) -> Vec<CreaseId> {
11270 self.display_map
11271 .update(cx, |map, cx| map.insert_creases(creases, cx))
11272 }
11273
11274 pub fn remove_creases(
11275 &mut self,
11276 ids: impl IntoIterator<Item = CreaseId>,
11277 cx: &mut ViewContext<Self>,
11278 ) {
11279 self.display_map
11280 .update(cx, |map, cx| map.remove_creases(ids, cx));
11281 }
11282
11283 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11284 self.display_map
11285 .update(cx, |map, cx| map.snapshot(cx))
11286 .longest_row()
11287 }
11288
11289 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11290 self.display_map
11291 .update(cx, |map, cx| map.snapshot(cx))
11292 .max_point()
11293 }
11294
11295 pub fn text(&self, cx: &AppContext) -> String {
11296 self.buffer.read(cx).read(cx).text()
11297 }
11298
11299 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11300 let text = self.text(cx);
11301 let text = text.trim();
11302
11303 if text.is_empty() {
11304 return None;
11305 }
11306
11307 Some(text.to_string())
11308 }
11309
11310 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11311 self.transact(cx, |this, cx| {
11312 this.buffer
11313 .read(cx)
11314 .as_singleton()
11315 .expect("you can only call set_text on editors for singleton buffers")
11316 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11317 });
11318 }
11319
11320 pub fn display_text(&self, cx: &mut AppContext) -> String {
11321 self.display_map
11322 .update(cx, |map, cx| map.snapshot(cx))
11323 .text()
11324 }
11325
11326 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11327 let mut wrap_guides = smallvec::smallvec![];
11328
11329 if self.show_wrap_guides == Some(false) {
11330 return wrap_guides;
11331 }
11332
11333 let settings = self.buffer.read(cx).settings_at(0, cx);
11334 if settings.show_wrap_guides {
11335 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11336 wrap_guides.push((soft_wrap as usize, true));
11337 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11338 wrap_guides.push((soft_wrap as usize, true));
11339 }
11340 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11341 }
11342
11343 wrap_guides
11344 }
11345
11346 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11347 let settings = self.buffer.read(cx).settings_at(0, cx);
11348 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11349 match mode {
11350 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11351 SoftWrap::None
11352 }
11353 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11354 language_settings::SoftWrap::PreferredLineLength => {
11355 SoftWrap::Column(settings.preferred_line_length)
11356 }
11357 language_settings::SoftWrap::Bounded => {
11358 SoftWrap::Bounded(settings.preferred_line_length)
11359 }
11360 }
11361 }
11362
11363 pub fn set_soft_wrap_mode(
11364 &mut self,
11365 mode: language_settings::SoftWrap,
11366 cx: &mut ViewContext<Self>,
11367 ) {
11368 self.soft_wrap_mode_override = Some(mode);
11369 cx.notify();
11370 }
11371
11372 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11373 self.text_style_refinement = Some(style);
11374 }
11375
11376 /// called by the Element so we know what style we were most recently rendered with.
11377 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11378 let rem_size = cx.rem_size();
11379 self.display_map.update(cx, |map, cx| {
11380 map.set_font(
11381 style.text.font(),
11382 style.text.font_size.to_pixels(rem_size),
11383 cx,
11384 )
11385 });
11386 self.style = Some(style);
11387 }
11388
11389 pub fn style(&self) -> Option<&EditorStyle> {
11390 self.style.as_ref()
11391 }
11392
11393 // Called by the element. This method is not designed to be called outside of the editor
11394 // element's layout code because it does not notify when rewrapping is computed synchronously.
11395 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11396 self.display_map
11397 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11398 }
11399
11400 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11401 if self.soft_wrap_mode_override.is_some() {
11402 self.soft_wrap_mode_override.take();
11403 } else {
11404 let soft_wrap = match self.soft_wrap_mode(cx) {
11405 SoftWrap::GitDiff => return,
11406 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11407 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11408 language_settings::SoftWrap::None
11409 }
11410 };
11411 self.soft_wrap_mode_override = Some(soft_wrap);
11412 }
11413 cx.notify();
11414 }
11415
11416 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11417 let Some(workspace) = self.workspace() else {
11418 return;
11419 };
11420 let fs = workspace.read(cx).app_state().fs.clone();
11421 let current_show = TabBarSettings::get_global(cx).show;
11422 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11423 setting.show = Some(!current_show);
11424 });
11425 }
11426
11427 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11428 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11429 self.buffer
11430 .read(cx)
11431 .settings_at(0, cx)
11432 .indent_guides
11433 .enabled
11434 });
11435 self.show_indent_guides = Some(!currently_enabled);
11436 cx.notify();
11437 }
11438
11439 fn should_show_indent_guides(&self) -> Option<bool> {
11440 self.show_indent_guides
11441 }
11442
11443 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11444 let mut editor_settings = EditorSettings::get_global(cx).clone();
11445 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11446 EditorSettings::override_global(editor_settings, cx);
11447 }
11448
11449 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11450 self.use_relative_line_numbers
11451 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11452 }
11453
11454 pub fn toggle_relative_line_numbers(
11455 &mut self,
11456 _: &ToggleRelativeLineNumbers,
11457 cx: &mut ViewContext<Self>,
11458 ) {
11459 let is_relative = self.should_use_relative_line_numbers(cx);
11460 self.set_relative_line_number(Some(!is_relative), cx)
11461 }
11462
11463 pub fn set_relative_line_number(
11464 &mut self,
11465 is_relative: Option<bool>,
11466 cx: &mut ViewContext<Self>,
11467 ) {
11468 self.use_relative_line_numbers = is_relative;
11469 cx.notify();
11470 }
11471
11472 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11473 self.show_gutter = show_gutter;
11474 cx.notify();
11475 }
11476
11477 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11478 self.show_line_numbers = Some(show_line_numbers);
11479 cx.notify();
11480 }
11481
11482 pub fn set_show_git_diff_gutter(
11483 &mut self,
11484 show_git_diff_gutter: bool,
11485 cx: &mut ViewContext<Self>,
11486 ) {
11487 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11488 cx.notify();
11489 }
11490
11491 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11492 self.show_code_actions = Some(show_code_actions);
11493 cx.notify();
11494 }
11495
11496 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11497 self.show_runnables = Some(show_runnables);
11498 cx.notify();
11499 }
11500
11501 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11502 if self.display_map.read(cx).masked != masked {
11503 self.display_map.update(cx, |map, _| map.masked = masked);
11504 }
11505 cx.notify()
11506 }
11507
11508 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11509 self.show_wrap_guides = Some(show_wrap_guides);
11510 cx.notify();
11511 }
11512
11513 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11514 self.show_indent_guides = Some(show_indent_guides);
11515 cx.notify();
11516 }
11517
11518 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11519 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11520 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11521 if let Some(dir) = file.abs_path(cx).parent() {
11522 return Some(dir.to_owned());
11523 }
11524 }
11525
11526 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11527 return Some(project_path.path.to_path_buf());
11528 }
11529 }
11530
11531 None
11532 }
11533
11534 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11535 self.active_excerpt(cx)?
11536 .1
11537 .read(cx)
11538 .file()
11539 .and_then(|f| f.as_local())
11540 }
11541
11542 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11543 if let Some(target) = self.target_file(cx) {
11544 cx.reveal_path(&target.abs_path(cx));
11545 }
11546 }
11547
11548 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11549 if let Some(file) = self.target_file(cx) {
11550 if let Some(path) = file.abs_path(cx).to_str() {
11551 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11552 }
11553 }
11554 }
11555
11556 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11557 if let Some(file) = self.target_file(cx) {
11558 if let Some(path) = file.path().to_str() {
11559 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11560 }
11561 }
11562 }
11563
11564 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11565 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11566
11567 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11568 self.start_git_blame(true, cx);
11569 }
11570
11571 cx.notify();
11572 }
11573
11574 pub fn toggle_git_blame_inline(
11575 &mut self,
11576 _: &ToggleGitBlameInline,
11577 cx: &mut ViewContext<Self>,
11578 ) {
11579 self.toggle_git_blame_inline_internal(true, cx);
11580 cx.notify();
11581 }
11582
11583 pub fn git_blame_inline_enabled(&self) -> bool {
11584 self.git_blame_inline_enabled
11585 }
11586
11587 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11588 self.show_selection_menu = self
11589 .show_selection_menu
11590 .map(|show_selections_menu| !show_selections_menu)
11591 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11592
11593 cx.notify();
11594 }
11595
11596 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11597 self.show_selection_menu
11598 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11599 }
11600
11601 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11602 if let Some(project) = self.project.as_ref() {
11603 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11604 return;
11605 };
11606
11607 if buffer.read(cx).file().is_none() {
11608 return;
11609 }
11610
11611 let focused = self.focus_handle(cx).contains_focused(cx);
11612
11613 let project = project.clone();
11614 let blame =
11615 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11616 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11617 self.blame = Some(blame);
11618 }
11619 }
11620
11621 fn toggle_git_blame_inline_internal(
11622 &mut self,
11623 user_triggered: bool,
11624 cx: &mut ViewContext<Self>,
11625 ) {
11626 if self.git_blame_inline_enabled {
11627 self.git_blame_inline_enabled = false;
11628 self.show_git_blame_inline = false;
11629 self.show_git_blame_inline_delay_task.take();
11630 } else {
11631 self.git_blame_inline_enabled = true;
11632 self.start_git_blame_inline(user_triggered, cx);
11633 }
11634
11635 cx.notify();
11636 }
11637
11638 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11639 self.start_git_blame(user_triggered, cx);
11640
11641 if ProjectSettings::get_global(cx)
11642 .git
11643 .inline_blame_delay()
11644 .is_some()
11645 {
11646 self.start_inline_blame_timer(cx);
11647 } else {
11648 self.show_git_blame_inline = true
11649 }
11650 }
11651
11652 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11653 self.blame.as_ref()
11654 }
11655
11656 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11657 self.show_git_blame_gutter && self.has_blame_entries(cx)
11658 }
11659
11660 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11661 self.show_git_blame_inline
11662 && self.focus_handle.is_focused(cx)
11663 && !self.newest_selection_head_on_empty_line(cx)
11664 && self.has_blame_entries(cx)
11665 }
11666
11667 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11668 self.blame()
11669 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11670 }
11671
11672 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11673 let cursor_anchor = self.selections.newest_anchor().head();
11674
11675 let snapshot = self.buffer.read(cx).snapshot(cx);
11676 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11677
11678 snapshot.line_len(buffer_row) == 0
11679 }
11680
11681 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11682 let buffer_and_selection = maybe!({
11683 let selection = self.selections.newest::<Point>(cx);
11684 let selection_range = selection.range();
11685
11686 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11687 (buffer, selection_range.start.row..selection_range.end.row)
11688 } else {
11689 let buffer_ranges = self
11690 .buffer()
11691 .read(cx)
11692 .range_to_buffer_ranges(selection_range, cx);
11693
11694 let (buffer, range, _) = if selection.reversed {
11695 buffer_ranges.first()
11696 } else {
11697 buffer_ranges.last()
11698 }?;
11699
11700 let snapshot = buffer.read(cx).snapshot();
11701 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11702 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11703 (buffer.clone(), selection)
11704 };
11705
11706 Some((buffer, selection))
11707 });
11708
11709 let Some((buffer, selection)) = buffer_and_selection else {
11710 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11711 };
11712
11713 let Some(project) = self.project.as_ref() else {
11714 return Task::ready(Err(anyhow!("editor does not have project")));
11715 };
11716
11717 project.update(cx, |project, cx| {
11718 project.get_permalink_to_line(&buffer, selection, cx)
11719 })
11720 }
11721
11722 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11723 let permalink_task = self.get_permalink_to_line(cx);
11724 let workspace = self.workspace();
11725
11726 cx.spawn(|_, mut cx| async move {
11727 match permalink_task.await {
11728 Ok(permalink) => {
11729 cx.update(|cx| {
11730 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11731 })
11732 .ok();
11733 }
11734 Err(err) => {
11735 let message = format!("Failed to copy permalink: {err}");
11736
11737 Err::<(), anyhow::Error>(err).log_err();
11738
11739 if let Some(workspace) = workspace {
11740 workspace
11741 .update(&mut cx, |workspace, cx| {
11742 struct CopyPermalinkToLine;
11743
11744 workspace.show_toast(
11745 Toast::new(
11746 NotificationId::unique::<CopyPermalinkToLine>(),
11747 message,
11748 ),
11749 cx,
11750 )
11751 })
11752 .ok();
11753 }
11754 }
11755 }
11756 })
11757 .detach();
11758 }
11759
11760 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11761 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11762 if let Some(file) = self.target_file(cx) {
11763 if let Some(path) = file.path().to_str() {
11764 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11765 }
11766 }
11767 }
11768
11769 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11770 let permalink_task = self.get_permalink_to_line(cx);
11771 let workspace = self.workspace();
11772
11773 cx.spawn(|_, mut cx| async move {
11774 match permalink_task.await {
11775 Ok(permalink) => {
11776 cx.update(|cx| {
11777 cx.open_url(permalink.as_ref());
11778 })
11779 .ok();
11780 }
11781 Err(err) => {
11782 let message = format!("Failed to open permalink: {err}");
11783
11784 Err::<(), anyhow::Error>(err).log_err();
11785
11786 if let Some(workspace) = workspace {
11787 workspace
11788 .update(&mut cx, |workspace, cx| {
11789 struct OpenPermalinkToLine;
11790
11791 workspace.show_toast(
11792 Toast::new(
11793 NotificationId::unique::<OpenPermalinkToLine>(),
11794 message,
11795 ),
11796 cx,
11797 )
11798 })
11799 .ok();
11800 }
11801 }
11802 }
11803 })
11804 .detach();
11805 }
11806
11807 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11808 /// last highlight added will be used.
11809 ///
11810 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11811 pub fn highlight_rows<T: 'static>(
11812 &mut self,
11813 range: Range<Anchor>,
11814 color: Hsla,
11815 should_autoscroll: bool,
11816 cx: &mut ViewContext<Self>,
11817 ) {
11818 let snapshot = self.buffer().read(cx).snapshot(cx);
11819 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11820 let ix = row_highlights.binary_search_by(|highlight| {
11821 Ordering::Equal
11822 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11823 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11824 });
11825
11826 if let Err(mut ix) = ix {
11827 let index = post_inc(&mut self.highlight_order);
11828
11829 // If this range intersects with the preceding highlight, then merge it with
11830 // the preceding highlight. Otherwise insert a new highlight.
11831 let mut merged = false;
11832 if ix > 0 {
11833 let prev_highlight = &mut row_highlights[ix - 1];
11834 if prev_highlight
11835 .range
11836 .end
11837 .cmp(&range.start, &snapshot)
11838 .is_ge()
11839 {
11840 ix -= 1;
11841 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11842 prev_highlight.range.end = range.end;
11843 }
11844 merged = true;
11845 prev_highlight.index = index;
11846 prev_highlight.color = color;
11847 prev_highlight.should_autoscroll = should_autoscroll;
11848 }
11849 }
11850
11851 if !merged {
11852 row_highlights.insert(
11853 ix,
11854 RowHighlight {
11855 range: range.clone(),
11856 index,
11857 color,
11858 should_autoscroll,
11859 },
11860 );
11861 }
11862
11863 // If any of the following highlights intersect with this one, merge them.
11864 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11865 let highlight = &row_highlights[ix];
11866 if next_highlight
11867 .range
11868 .start
11869 .cmp(&highlight.range.end, &snapshot)
11870 .is_le()
11871 {
11872 if next_highlight
11873 .range
11874 .end
11875 .cmp(&highlight.range.end, &snapshot)
11876 .is_gt()
11877 {
11878 row_highlights[ix].range.end = next_highlight.range.end;
11879 }
11880 row_highlights.remove(ix + 1);
11881 } else {
11882 break;
11883 }
11884 }
11885 }
11886 }
11887
11888 /// Remove any highlighted row ranges of the given type that intersect the
11889 /// given ranges.
11890 pub fn remove_highlighted_rows<T: 'static>(
11891 &mut self,
11892 ranges_to_remove: Vec<Range<Anchor>>,
11893 cx: &mut ViewContext<Self>,
11894 ) {
11895 let snapshot = self.buffer().read(cx).snapshot(cx);
11896 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11897 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11898 row_highlights.retain(|highlight| {
11899 while let Some(range_to_remove) = ranges_to_remove.peek() {
11900 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11901 Ordering::Less | Ordering::Equal => {
11902 ranges_to_remove.next();
11903 }
11904 Ordering::Greater => {
11905 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11906 Ordering::Less | Ordering::Equal => {
11907 return false;
11908 }
11909 Ordering::Greater => break,
11910 }
11911 }
11912 }
11913 }
11914
11915 true
11916 })
11917 }
11918
11919 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11920 pub fn clear_row_highlights<T: 'static>(&mut self) {
11921 self.highlighted_rows.remove(&TypeId::of::<T>());
11922 }
11923
11924 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11925 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11926 self.highlighted_rows
11927 .get(&TypeId::of::<T>())
11928 .map_or(&[] as &[_], |vec| vec.as_slice())
11929 .iter()
11930 .map(|highlight| (highlight.range.clone(), highlight.color))
11931 }
11932
11933 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11934 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11935 /// Allows to ignore certain kinds of highlights.
11936 pub fn highlighted_display_rows(
11937 &mut self,
11938 cx: &mut WindowContext,
11939 ) -> BTreeMap<DisplayRow, Hsla> {
11940 let snapshot = self.snapshot(cx);
11941 let mut used_highlight_orders = HashMap::default();
11942 self.highlighted_rows
11943 .iter()
11944 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11945 .fold(
11946 BTreeMap::<DisplayRow, Hsla>::new(),
11947 |mut unique_rows, highlight| {
11948 let start = highlight.range.start.to_display_point(&snapshot);
11949 let end = highlight.range.end.to_display_point(&snapshot);
11950 let start_row = start.row().0;
11951 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11952 && end.column() == 0
11953 {
11954 end.row().0.saturating_sub(1)
11955 } else {
11956 end.row().0
11957 };
11958 for row in start_row..=end_row {
11959 let used_index =
11960 used_highlight_orders.entry(row).or_insert(highlight.index);
11961 if highlight.index >= *used_index {
11962 *used_index = highlight.index;
11963 unique_rows.insert(DisplayRow(row), highlight.color);
11964 }
11965 }
11966 unique_rows
11967 },
11968 )
11969 }
11970
11971 pub fn highlighted_display_row_for_autoscroll(
11972 &self,
11973 snapshot: &DisplaySnapshot,
11974 ) -> Option<DisplayRow> {
11975 self.highlighted_rows
11976 .values()
11977 .flat_map(|highlighted_rows| highlighted_rows.iter())
11978 .filter_map(|highlight| {
11979 if highlight.should_autoscroll {
11980 Some(highlight.range.start.to_display_point(snapshot).row())
11981 } else {
11982 None
11983 }
11984 })
11985 .min()
11986 }
11987
11988 pub fn set_search_within_ranges(
11989 &mut self,
11990 ranges: &[Range<Anchor>],
11991 cx: &mut ViewContext<Self>,
11992 ) {
11993 self.highlight_background::<SearchWithinRange>(
11994 ranges,
11995 |colors| colors.editor_document_highlight_read_background,
11996 cx,
11997 )
11998 }
11999
12000 pub fn set_breadcrumb_header(&mut self, new_header: String) {
12001 self.breadcrumb_header = Some(new_header);
12002 }
12003
12004 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12005 self.clear_background_highlights::<SearchWithinRange>(cx);
12006 }
12007
12008 pub fn highlight_background<T: 'static>(
12009 &mut self,
12010 ranges: &[Range<Anchor>],
12011 color_fetcher: fn(&ThemeColors) -> Hsla,
12012 cx: &mut ViewContext<Self>,
12013 ) {
12014 self.background_highlights
12015 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12016 self.scrollbar_marker_state.dirty = true;
12017 cx.notify();
12018 }
12019
12020 pub fn clear_background_highlights<T: 'static>(
12021 &mut self,
12022 cx: &mut ViewContext<Self>,
12023 ) -> Option<BackgroundHighlight> {
12024 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12025 if !text_highlights.1.is_empty() {
12026 self.scrollbar_marker_state.dirty = true;
12027 cx.notify();
12028 }
12029 Some(text_highlights)
12030 }
12031
12032 pub fn highlight_gutter<T: 'static>(
12033 &mut self,
12034 ranges: &[Range<Anchor>],
12035 color_fetcher: fn(&AppContext) -> Hsla,
12036 cx: &mut ViewContext<Self>,
12037 ) {
12038 self.gutter_highlights
12039 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12040 cx.notify();
12041 }
12042
12043 pub fn clear_gutter_highlights<T: 'static>(
12044 &mut self,
12045 cx: &mut ViewContext<Self>,
12046 ) -> Option<GutterHighlight> {
12047 cx.notify();
12048 self.gutter_highlights.remove(&TypeId::of::<T>())
12049 }
12050
12051 #[cfg(feature = "test-support")]
12052 pub fn all_text_background_highlights(
12053 &mut self,
12054 cx: &mut ViewContext<Self>,
12055 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12056 let snapshot = self.snapshot(cx);
12057 let buffer = &snapshot.buffer_snapshot;
12058 let start = buffer.anchor_before(0);
12059 let end = buffer.anchor_after(buffer.len());
12060 let theme = cx.theme().colors();
12061 self.background_highlights_in_range(start..end, &snapshot, theme)
12062 }
12063
12064 #[cfg(feature = "test-support")]
12065 pub fn search_background_highlights(
12066 &mut self,
12067 cx: &mut ViewContext<Self>,
12068 ) -> Vec<Range<Point>> {
12069 let snapshot = self.buffer().read(cx).snapshot(cx);
12070
12071 let highlights = self
12072 .background_highlights
12073 .get(&TypeId::of::<items::BufferSearchHighlights>());
12074
12075 if let Some((_color, ranges)) = highlights {
12076 ranges
12077 .iter()
12078 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12079 .collect_vec()
12080 } else {
12081 vec![]
12082 }
12083 }
12084
12085 fn document_highlights_for_position<'a>(
12086 &'a self,
12087 position: Anchor,
12088 buffer: &'a MultiBufferSnapshot,
12089 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12090 let read_highlights = self
12091 .background_highlights
12092 .get(&TypeId::of::<DocumentHighlightRead>())
12093 .map(|h| &h.1);
12094 let write_highlights = self
12095 .background_highlights
12096 .get(&TypeId::of::<DocumentHighlightWrite>())
12097 .map(|h| &h.1);
12098 let left_position = position.bias_left(buffer);
12099 let right_position = position.bias_right(buffer);
12100 read_highlights
12101 .into_iter()
12102 .chain(write_highlights)
12103 .flat_map(move |ranges| {
12104 let start_ix = match ranges.binary_search_by(|probe| {
12105 let cmp = probe.end.cmp(&left_position, buffer);
12106 if cmp.is_ge() {
12107 Ordering::Greater
12108 } else {
12109 Ordering::Less
12110 }
12111 }) {
12112 Ok(i) | Err(i) => i,
12113 };
12114
12115 ranges[start_ix..]
12116 .iter()
12117 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12118 })
12119 }
12120
12121 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12122 self.background_highlights
12123 .get(&TypeId::of::<T>())
12124 .map_or(false, |(_, highlights)| !highlights.is_empty())
12125 }
12126
12127 pub fn background_highlights_in_range(
12128 &self,
12129 search_range: Range<Anchor>,
12130 display_snapshot: &DisplaySnapshot,
12131 theme: &ThemeColors,
12132 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12133 let mut results = Vec::new();
12134 for (color_fetcher, ranges) in self.background_highlights.values() {
12135 let color = color_fetcher(theme);
12136 let start_ix = match ranges.binary_search_by(|probe| {
12137 let cmp = probe
12138 .end
12139 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12140 if cmp.is_gt() {
12141 Ordering::Greater
12142 } else {
12143 Ordering::Less
12144 }
12145 }) {
12146 Ok(i) | Err(i) => i,
12147 };
12148 for range in &ranges[start_ix..] {
12149 if range
12150 .start
12151 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12152 .is_ge()
12153 {
12154 break;
12155 }
12156
12157 let start = range.start.to_display_point(display_snapshot);
12158 let end = range.end.to_display_point(display_snapshot);
12159 results.push((start..end, color))
12160 }
12161 }
12162 results
12163 }
12164
12165 pub fn background_highlight_row_ranges<T: 'static>(
12166 &self,
12167 search_range: Range<Anchor>,
12168 display_snapshot: &DisplaySnapshot,
12169 count: usize,
12170 ) -> Vec<RangeInclusive<DisplayPoint>> {
12171 let mut results = Vec::new();
12172 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12173 return vec![];
12174 };
12175
12176 let start_ix = match ranges.binary_search_by(|probe| {
12177 let cmp = probe
12178 .end
12179 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12180 if cmp.is_gt() {
12181 Ordering::Greater
12182 } else {
12183 Ordering::Less
12184 }
12185 }) {
12186 Ok(i) | Err(i) => i,
12187 };
12188 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12189 if let (Some(start_display), Some(end_display)) = (start, end) {
12190 results.push(
12191 start_display.to_display_point(display_snapshot)
12192 ..=end_display.to_display_point(display_snapshot),
12193 );
12194 }
12195 };
12196 let mut start_row: Option<Point> = None;
12197 let mut end_row: Option<Point> = None;
12198 if ranges.len() > count {
12199 return Vec::new();
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 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12210 if let Some(current_row) = &end_row {
12211 if end.row == current_row.row {
12212 continue;
12213 }
12214 }
12215 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12216 if start_row.is_none() {
12217 assert_eq!(end_row, None);
12218 start_row = Some(start);
12219 end_row = Some(end);
12220 continue;
12221 }
12222 if let Some(current_end) = end_row.as_mut() {
12223 if start.row > current_end.row + 1 {
12224 push_region(start_row, end_row);
12225 start_row = Some(start);
12226 end_row = Some(end);
12227 } else {
12228 // Merge two hunks.
12229 *current_end = end;
12230 }
12231 } else {
12232 unreachable!();
12233 }
12234 }
12235 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12236 push_region(start_row, end_row);
12237 results
12238 }
12239
12240 pub fn gutter_highlights_in_range(
12241 &self,
12242 search_range: Range<Anchor>,
12243 display_snapshot: &DisplaySnapshot,
12244 cx: &AppContext,
12245 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12246 let mut results = Vec::new();
12247 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12248 let color = color_fetcher(cx);
12249 let start_ix = match ranges.binary_search_by(|probe| {
12250 let cmp = probe
12251 .end
12252 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12253 if cmp.is_gt() {
12254 Ordering::Greater
12255 } else {
12256 Ordering::Less
12257 }
12258 }) {
12259 Ok(i) | Err(i) => i,
12260 };
12261 for range in &ranges[start_ix..] {
12262 if range
12263 .start
12264 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12265 .is_ge()
12266 {
12267 break;
12268 }
12269
12270 let start = range.start.to_display_point(display_snapshot);
12271 let end = range.end.to_display_point(display_snapshot);
12272 results.push((start..end, color))
12273 }
12274 }
12275 results
12276 }
12277
12278 /// Get the text ranges corresponding to the redaction query
12279 pub fn redacted_ranges(
12280 &self,
12281 search_range: Range<Anchor>,
12282 display_snapshot: &DisplaySnapshot,
12283 cx: &WindowContext,
12284 ) -> Vec<Range<DisplayPoint>> {
12285 display_snapshot
12286 .buffer_snapshot
12287 .redacted_ranges(search_range, |file| {
12288 if let Some(file) = file {
12289 file.is_private()
12290 && EditorSettings::get(
12291 Some(SettingsLocation {
12292 worktree_id: file.worktree_id(cx),
12293 path: file.path().as_ref(),
12294 }),
12295 cx,
12296 )
12297 .redact_private_values
12298 } else {
12299 false
12300 }
12301 })
12302 .map(|range| {
12303 range.start.to_display_point(display_snapshot)
12304 ..range.end.to_display_point(display_snapshot)
12305 })
12306 .collect()
12307 }
12308
12309 pub fn highlight_text<T: 'static>(
12310 &mut self,
12311 ranges: Vec<Range<Anchor>>,
12312 style: HighlightStyle,
12313 cx: &mut ViewContext<Self>,
12314 ) {
12315 self.display_map.update(cx, |map, _| {
12316 map.highlight_text(TypeId::of::<T>(), ranges, style)
12317 });
12318 cx.notify();
12319 }
12320
12321 pub(crate) fn highlight_inlays<T: 'static>(
12322 &mut self,
12323 highlights: Vec<InlayHighlight>,
12324 style: HighlightStyle,
12325 cx: &mut ViewContext<Self>,
12326 ) {
12327 self.display_map.update(cx, |map, _| {
12328 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12329 });
12330 cx.notify();
12331 }
12332
12333 pub fn text_highlights<'a, T: 'static>(
12334 &'a self,
12335 cx: &'a AppContext,
12336 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12337 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12338 }
12339
12340 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12341 let cleared = self
12342 .display_map
12343 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12344 if cleared {
12345 cx.notify();
12346 }
12347 }
12348
12349 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12350 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12351 && self.focus_handle.is_focused(cx)
12352 }
12353
12354 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12355 self.show_cursor_when_unfocused = is_enabled;
12356 cx.notify();
12357 }
12358
12359 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12360 cx.notify();
12361 }
12362
12363 fn on_buffer_event(
12364 &mut self,
12365 multibuffer: Model<MultiBuffer>,
12366 event: &multi_buffer::Event,
12367 cx: &mut ViewContext<Self>,
12368 ) {
12369 match event {
12370 multi_buffer::Event::Edited {
12371 singleton_buffer_edited,
12372 } => {
12373 self.scrollbar_marker_state.dirty = true;
12374 self.active_indent_guides_state.dirty = true;
12375 self.refresh_active_diagnostics(cx);
12376 self.refresh_code_actions(cx);
12377 if self.has_active_inline_completion(cx) {
12378 self.update_visible_inline_completion(cx);
12379 }
12380 cx.emit(EditorEvent::BufferEdited);
12381 cx.emit(SearchEvent::MatchesInvalidated);
12382 if *singleton_buffer_edited {
12383 if let Some(project) = &self.project {
12384 let project = project.read(cx);
12385 #[allow(clippy::mutable_key_type)]
12386 let languages_affected = multibuffer
12387 .read(cx)
12388 .all_buffers()
12389 .into_iter()
12390 .filter_map(|buffer| {
12391 let buffer = buffer.read(cx);
12392 let language = buffer.language()?;
12393 if project.is_local()
12394 && project.language_servers_for_buffer(buffer, cx).count() == 0
12395 {
12396 None
12397 } else {
12398 Some(language)
12399 }
12400 })
12401 .cloned()
12402 .collect::<HashSet<_>>();
12403 if !languages_affected.is_empty() {
12404 self.refresh_inlay_hints(
12405 InlayHintRefreshReason::BufferEdited(languages_affected),
12406 cx,
12407 );
12408 }
12409 }
12410 }
12411
12412 let Some(project) = &self.project else { return };
12413 let (telemetry, is_via_ssh) = {
12414 let project = project.read(cx);
12415 let telemetry = project.client().telemetry().clone();
12416 let is_via_ssh = project.is_via_ssh();
12417 (telemetry, is_via_ssh)
12418 };
12419 refresh_linked_ranges(self, cx);
12420 telemetry.log_edit_event("editor", is_via_ssh);
12421 }
12422 multi_buffer::Event::ExcerptsAdded {
12423 buffer,
12424 predecessor,
12425 excerpts,
12426 } => {
12427 self.tasks_update_task = Some(self.refresh_runnables(cx));
12428 cx.emit(EditorEvent::ExcerptsAdded {
12429 buffer: buffer.clone(),
12430 predecessor: *predecessor,
12431 excerpts: excerpts.clone(),
12432 });
12433 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12434 }
12435 multi_buffer::Event::ExcerptsRemoved { ids } => {
12436 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12437 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12438 }
12439 multi_buffer::Event::ExcerptsEdited { ids } => {
12440 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12441 }
12442 multi_buffer::Event::ExcerptsExpanded { ids } => {
12443 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12444 }
12445 multi_buffer::Event::Reparsed(buffer_id) => {
12446 self.tasks_update_task = Some(self.refresh_runnables(cx));
12447
12448 cx.emit(EditorEvent::Reparsed(*buffer_id));
12449 }
12450 multi_buffer::Event::LanguageChanged(buffer_id) => {
12451 linked_editing_ranges::refresh_linked_ranges(self, cx);
12452 cx.emit(EditorEvent::Reparsed(*buffer_id));
12453 cx.notify();
12454 }
12455 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12456 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12457 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12458 cx.emit(EditorEvent::TitleChanged)
12459 }
12460 multi_buffer::Event::DiffBaseChanged => {
12461 self.scrollbar_marker_state.dirty = true;
12462 cx.emit(EditorEvent::DiffBaseChanged);
12463 cx.notify();
12464 }
12465 multi_buffer::Event::DiffUpdated { buffer } => {
12466 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12467 cx.notify();
12468 }
12469 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12470 multi_buffer::Event::DiagnosticsUpdated => {
12471 self.refresh_active_diagnostics(cx);
12472 self.scrollbar_marker_state.dirty = true;
12473 cx.notify();
12474 }
12475 _ => {}
12476 };
12477 }
12478
12479 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12480 cx.notify();
12481 }
12482
12483 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12484 self.tasks_update_task = Some(self.refresh_runnables(cx));
12485 self.refresh_inline_completion(true, false, cx);
12486 self.refresh_inlay_hints(
12487 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12488 self.selections.newest_anchor().head(),
12489 &self.buffer.read(cx).snapshot(cx),
12490 cx,
12491 )),
12492 cx,
12493 );
12494
12495 let old_cursor_shape = self.cursor_shape;
12496
12497 {
12498 let editor_settings = EditorSettings::get_global(cx);
12499 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12500 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12501 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12502 }
12503
12504 if old_cursor_shape != self.cursor_shape {
12505 cx.emit(EditorEvent::CursorShapeChanged);
12506 }
12507
12508 let project_settings = ProjectSettings::get_global(cx);
12509 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12510
12511 if self.mode == EditorMode::Full {
12512 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12513 if self.git_blame_inline_enabled != inline_blame_enabled {
12514 self.toggle_git_blame_inline_internal(false, cx);
12515 }
12516 }
12517
12518 cx.notify();
12519 }
12520
12521 pub fn set_searchable(&mut self, searchable: bool) {
12522 self.searchable = searchable;
12523 }
12524
12525 pub fn searchable(&self) -> bool {
12526 self.searchable
12527 }
12528
12529 fn open_proposed_changes_editor(
12530 &mut self,
12531 _: &OpenProposedChangesEditor,
12532 cx: &mut ViewContext<Self>,
12533 ) {
12534 let Some(workspace) = self.workspace() else {
12535 cx.propagate();
12536 return;
12537 };
12538
12539 let selections = self.selections.all::<usize>(cx);
12540 let buffer = self.buffer.read(cx);
12541 let mut new_selections_by_buffer = HashMap::default();
12542 for selection in selections {
12543 for (buffer, range, _) in
12544 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12545 {
12546 let mut range = range.to_point(buffer.read(cx));
12547 range.start.column = 0;
12548 range.end.column = buffer.read(cx).line_len(range.end.row);
12549 new_selections_by_buffer
12550 .entry(buffer)
12551 .or_insert(Vec::new())
12552 .push(range)
12553 }
12554 }
12555
12556 let proposed_changes_buffers = new_selections_by_buffer
12557 .into_iter()
12558 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12559 .collect::<Vec<_>>();
12560 let proposed_changes_editor = cx.new_view(|cx| {
12561 ProposedChangesEditor::new(
12562 "Proposed changes",
12563 proposed_changes_buffers,
12564 self.project.clone(),
12565 cx,
12566 )
12567 });
12568
12569 cx.window_context().defer(move |cx| {
12570 workspace.update(cx, |workspace, cx| {
12571 workspace.active_pane().update(cx, |pane, cx| {
12572 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12573 });
12574 });
12575 });
12576 }
12577
12578 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12579 self.open_excerpts_common(true, cx)
12580 }
12581
12582 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12583 self.open_excerpts_common(false, cx)
12584 }
12585
12586 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
12587 let selections = self.selections.all::<usize>(cx);
12588 let buffer = self.buffer.read(cx);
12589 if buffer.is_singleton() {
12590 cx.propagate();
12591 return;
12592 }
12593
12594 let Some(workspace) = self.workspace() else {
12595 cx.propagate();
12596 return;
12597 };
12598
12599 let mut new_selections_by_buffer = HashMap::default();
12600 for selection in selections {
12601 for (mut buffer_handle, mut range, _) in
12602 buffer.range_to_buffer_ranges(selection.range(), cx)
12603 {
12604 // When editing branch buffers, jump to the corresponding location
12605 // in their base buffer.
12606 let buffer = buffer_handle.read(cx);
12607 if let Some(base_buffer) = buffer.diff_base_buffer() {
12608 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12609 buffer_handle = base_buffer;
12610 }
12611
12612 if selection.reversed {
12613 mem::swap(&mut range.start, &mut range.end);
12614 }
12615 new_selections_by_buffer
12616 .entry(buffer_handle)
12617 .or_insert(Vec::new())
12618 .push(range)
12619 }
12620 }
12621
12622 // We defer the pane interaction because we ourselves are a workspace item
12623 // and activating a new item causes the pane to call a method on us reentrantly,
12624 // which panics if we're on the stack.
12625 cx.window_context().defer(move |cx| {
12626 workspace.update(cx, |workspace, cx| {
12627 let pane = if split {
12628 workspace.adjacent_pane(cx)
12629 } else {
12630 workspace.active_pane().clone()
12631 };
12632
12633 for (buffer, ranges) in new_selections_by_buffer {
12634 let editor =
12635 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12636 editor.update(cx, |editor, cx| {
12637 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
12638 s.select_ranges(ranges);
12639 });
12640 });
12641 }
12642 })
12643 });
12644 }
12645
12646 fn jump(
12647 &mut self,
12648 path: ProjectPath,
12649 position: Point,
12650 anchor: language::Anchor,
12651 offset_from_top: u32,
12652 cx: &mut ViewContext<Self>,
12653 ) {
12654 let workspace = self.workspace();
12655 cx.spawn(|_, mut cx| async move {
12656 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
12657 let editor = workspace.update(&mut cx, |workspace, cx| {
12658 // Reset the preview item id before opening the new item
12659 workspace.active_pane().update(cx, |pane, cx| {
12660 pane.set_preview_item_id(None, cx);
12661 });
12662 workspace.open_path_preview(path, None, true, true, cx)
12663 })?;
12664 let editor = editor
12665 .await?
12666 .downcast::<Editor>()
12667 .ok_or_else(|| anyhow!("opened item was not an editor"))?
12668 .downgrade();
12669 editor.update(&mut cx, |editor, cx| {
12670 let buffer = editor
12671 .buffer()
12672 .read(cx)
12673 .as_singleton()
12674 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
12675 let buffer = buffer.read(cx);
12676 let cursor = if buffer.can_resolve(&anchor) {
12677 language::ToPoint::to_point(&anchor, buffer)
12678 } else {
12679 buffer.clip_point(position, Bias::Left)
12680 };
12681
12682 let nav_history = editor.nav_history.take();
12683 editor.change_selections(
12684 Some(Autoscroll::top_relative(offset_from_top as usize)),
12685 cx,
12686 |s| {
12687 s.select_ranges([cursor..cursor]);
12688 },
12689 );
12690 editor.nav_history = nav_history;
12691
12692 anyhow::Ok(())
12693 })??;
12694
12695 anyhow::Ok(())
12696 })
12697 .detach_and_log_err(cx);
12698 }
12699
12700 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12701 let snapshot = self.buffer.read(cx).read(cx);
12702 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12703 Some(
12704 ranges
12705 .iter()
12706 .map(move |range| {
12707 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12708 })
12709 .collect(),
12710 )
12711 }
12712
12713 fn selection_replacement_ranges(
12714 &self,
12715 range: Range<OffsetUtf16>,
12716 cx: &mut AppContext,
12717 ) -> Vec<Range<OffsetUtf16>> {
12718 let selections = self.selections.all::<OffsetUtf16>(cx);
12719 let newest_selection = selections
12720 .iter()
12721 .max_by_key(|selection| selection.id)
12722 .unwrap();
12723 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12724 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12725 let snapshot = self.buffer.read(cx).read(cx);
12726 selections
12727 .into_iter()
12728 .map(|mut selection| {
12729 selection.start.0 =
12730 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12731 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12732 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12733 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12734 })
12735 .collect()
12736 }
12737
12738 fn report_editor_event(
12739 &self,
12740 operation: &'static str,
12741 file_extension: Option<String>,
12742 cx: &AppContext,
12743 ) {
12744 if cfg!(any(test, feature = "test-support")) {
12745 return;
12746 }
12747
12748 let Some(project) = &self.project else { return };
12749
12750 // If None, we are in a file without an extension
12751 let file = self
12752 .buffer
12753 .read(cx)
12754 .as_singleton()
12755 .and_then(|b| b.read(cx).file());
12756 let file_extension = file_extension.or(file
12757 .as_ref()
12758 .and_then(|file| Path::new(file.file_name(cx)).extension())
12759 .and_then(|e| e.to_str())
12760 .map(|a| a.to_string()));
12761
12762 let vim_mode = cx
12763 .global::<SettingsStore>()
12764 .raw_user_settings()
12765 .get("vim_mode")
12766 == Some(&serde_json::Value::Bool(true));
12767
12768 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12769 == language::language_settings::InlineCompletionProvider::Copilot;
12770 let copilot_enabled_for_language = self
12771 .buffer
12772 .read(cx)
12773 .settings_at(0, cx)
12774 .show_inline_completions;
12775
12776 let project = project.read(cx);
12777 let telemetry = project.client().telemetry().clone();
12778 telemetry.report_editor_event(
12779 file_extension,
12780 vim_mode,
12781 operation,
12782 copilot_enabled,
12783 copilot_enabled_for_language,
12784 project.is_via_ssh(),
12785 )
12786 }
12787
12788 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12789 /// with each line being an array of {text, highlight} objects.
12790 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12791 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12792 return;
12793 };
12794
12795 #[derive(Serialize)]
12796 struct Chunk<'a> {
12797 text: String,
12798 highlight: Option<&'a str>,
12799 }
12800
12801 let snapshot = buffer.read(cx).snapshot();
12802 let range = self
12803 .selected_text_range(false, cx)
12804 .and_then(|selection| {
12805 if selection.range.is_empty() {
12806 None
12807 } else {
12808 Some(selection.range)
12809 }
12810 })
12811 .unwrap_or_else(|| 0..snapshot.len());
12812
12813 let chunks = snapshot.chunks(range, true);
12814 let mut lines = Vec::new();
12815 let mut line: VecDeque<Chunk> = VecDeque::new();
12816
12817 let Some(style) = self.style.as_ref() else {
12818 return;
12819 };
12820
12821 for chunk in chunks {
12822 let highlight = chunk
12823 .syntax_highlight_id
12824 .and_then(|id| id.name(&style.syntax));
12825 let mut chunk_lines = chunk.text.split('\n').peekable();
12826 while let Some(text) = chunk_lines.next() {
12827 let mut merged_with_last_token = false;
12828 if let Some(last_token) = line.back_mut() {
12829 if last_token.highlight == highlight {
12830 last_token.text.push_str(text);
12831 merged_with_last_token = true;
12832 }
12833 }
12834
12835 if !merged_with_last_token {
12836 line.push_back(Chunk {
12837 text: text.into(),
12838 highlight,
12839 });
12840 }
12841
12842 if chunk_lines.peek().is_some() {
12843 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12844 line.pop_front();
12845 }
12846 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12847 line.pop_back();
12848 }
12849
12850 lines.push(mem::take(&mut line));
12851 }
12852 }
12853 }
12854
12855 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12856 return;
12857 };
12858 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12859 }
12860
12861 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12862 &self.inlay_hint_cache
12863 }
12864
12865 pub fn replay_insert_event(
12866 &mut self,
12867 text: &str,
12868 relative_utf16_range: Option<Range<isize>>,
12869 cx: &mut ViewContext<Self>,
12870 ) {
12871 if !self.input_enabled {
12872 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12873 return;
12874 }
12875 if let Some(relative_utf16_range) = relative_utf16_range {
12876 let selections = self.selections.all::<OffsetUtf16>(cx);
12877 self.change_selections(None, cx, |s| {
12878 let new_ranges = selections.into_iter().map(|range| {
12879 let start = OffsetUtf16(
12880 range
12881 .head()
12882 .0
12883 .saturating_add_signed(relative_utf16_range.start),
12884 );
12885 let end = OffsetUtf16(
12886 range
12887 .head()
12888 .0
12889 .saturating_add_signed(relative_utf16_range.end),
12890 );
12891 start..end
12892 });
12893 s.select_ranges(new_ranges);
12894 });
12895 }
12896
12897 self.handle_input(text, cx);
12898 }
12899
12900 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12901 let Some(provider) = self.semantics_provider.as_ref() else {
12902 return false;
12903 };
12904
12905 let mut supports = false;
12906 self.buffer().read(cx).for_each_buffer(|buffer| {
12907 supports |= provider.supports_inlay_hints(buffer, cx);
12908 });
12909 supports
12910 }
12911
12912 pub fn focus(&self, cx: &mut WindowContext) {
12913 cx.focus(&self.focus_handle)
12914 }
12915
12916 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12917 self.focus_handle.is_focused(cx)
12918 }
12919
12920 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12921 cx.emit(EditorEvent::Focused);
12922
12923 if let Some(descendant) = self
12924 .last_focused_descendant
12925 .take()
12926 .and_then(|descendant| descendant.upgrade())
12927 {
12928 cx.focus(&descendant);
12929 } else {
12930 if let Some(blame) = self.blame.as_ref() {
12931 blame.update(cx, GitBlame::focus)
12932 }
12933
12934 self.blink_manager.update(cx, BlinkManager::enable);
12935 self.show_cursor_names(cx);
12936 self.buffer.update(cx, |buffer, cx| {
12937 buffer.finalize_last_transaction(cx);
12938 if self.leader_peer_id.is_none() {
12939 buffer.set_active_selections(
12940 &self.selections.disjoint_anchors(),
12941 self.selections.line_mode,
12942 self.cursor_shape,
12943 cx,
12944 );
12945 }
12946 });
12947 }
12948 }
12949
12950 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12951 cx.emit(EditorEvent::FocusedIn)
12952 }
12953
12954 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12955 if event.blurred != self.focus_handle {
12956 self.last_focused_descendant = Some(event.blurred);
12957 }
12958 }
12959
12960 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12961 self.blink_manager.update(cx, BlinkManager::disable);
12962 self.buffer
12963 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12964
12965 if let Some(blame) = self.blame.as_ref() {
12966 blame.update(cx, GitBlame::blur)
12967 }
12968 if !self.hover_state.focused(cx) {
12969 hide_hover(self, cx);
12970 }
12971
12972 self.hide_context_menu(cx);
12973 cx.emit(EditorEvent::Blurred);
12974 cx.notify();
12975 }
12976
12977 pub fn register_action<A: Action>(
12978 &mut self,
12979 listener: impl Fn(&A, &mut WindowContext) + 'static,
12980 ) -> Subscription {
12981 let id = self.next_editor_action_id.post_inc();
12982 let listener = Arc::new(listener);
12983 self.editor_actions.borrow_mut().insert(
12984 id,
12985 Box::new(move |cx| {
12986 let cx = cx.window_context();
12987 let listener = listener.clone();
12988 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12989 let action = action.downcast_ref().unwrap();
12990 if phase == DispatchPhase::Bubble {
12991 listener(action, cx)
12992 }
12993 })
12994 }),
12995 );
12996
12997 let editor_actions = self.editor_actions.clone();
12998 Subscription::new(move || {
12999 editor_actions.borrow_mut().remove(&id);
13000 })
13001 }
13002
13003 pub fn file_header_size(&self) -> u32 {
13004 FILE_HEADER_HEIGHT
13005 }
13006
13007 pub fn revert(
13008 &mut self,
13009 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13010 cx: &mut ViewContext<Self>,
13011 ) {
13012 self.buffer().update(cx, |multi_buffer, cx| {
13013 for (buffer_id, changes) in revert_changes {
13014 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13015 buffer.update(cx, |buffer, cx| {
13016 buffer.edit(
13017 changes.into_iter().map(|(range, text)| {
13018 (range, text.to_string().map(Arc::<str>::from))
13019 }),
13020 None,
13021 cx,
13022 );
13023 });
13024 }
13025 }
13026 });
13027 self.change_selections(None, cx, |selections| selections.refresh());
13028 }
13029
13030 pub fn to_pixel_point(
13031 &mut self,
13032 source: multi_buffer::Anchor,
13033 editor_snapshot: &EditorSnapshot,
13034 cx: &mut ViewContext<Self>,
13035 ) -> Option<gpui::Point<Pixels>> {
13036 let source_point = source.to_display_point(editor_snapshot);
13037 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13038 }
13039
13040 pub fn display_to_pixel_point(
13041 &mut self,
13042 source: DisplayPoint,
13043 editor_snapshot: &EditorSnapshot,
13044 cx: &mut ViewContext<Self>,
13045 ) -> Option<gpui::Point<Pixels>> {
13046 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13047 let text_layout_details = self.text_layout_details(cx);
13048 let scroll_top = text_layout_details
13049 .scroll_anchor
13050 .scroll_position(editor_snapshot)
13051 .y;
13052
13053 if source.row().as_f32() < scroll_top.floor() {
13054 return None;
13055 }
13056 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13057 let source_y = line_height * (source.row().as_f32() - scroll_top);
13058 Some(gpui::Point::new(source_x, source_y))
13059 }
13060
13061 pub fn has_active_completions_menu(&self) -> bool {
13062 self.context_menu.read().as_ref().map_or(false, |menu| {
13063 menu.visible() && matches!(menu, ContextMenu::Completions(_))
13064 })
13065 }
13066
13067 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13068 self.addons
13069 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13070 }
13071
13072 pub fn unregister_addon<T: Addon>(&mut self) {
13073 self.addons.remove(&std::any::TypeId::of::<T>());
13074 }
13075
13076 pub fn addon<T: Addon>(&self) -> Option<&T> {
13077 let type_id = std::any::TypeId::of::<T>();
13078 self.addons
13079 .get(&type_id)
13080 .and_then(|item| item.to_any().downcast_ref::<T>())
13081 }
13082}
13083
13084fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13085 let tab_size = tab_size.get() as usize;
13086 let mut width = offset;
13087
13088 for ch in text.chars() {
13089 width += if ch == '\t' {
13090 tab_size - (width % tab_size)
13091 } else {
13092 1
13093 };
13094 }
13095
13096 width - offset
13097}
13098
13099#[cfg(test)]
13100mod tests {
13101 use super::*;
13102
13103 #[test]
13104 fn test_string_size_with_expanded_tabs() {
13105 let nz = |val| NonZeroU32::new(val).unwrap();
13106 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13107 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13108 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13109 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13110 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13111 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13112 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13113 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13114 }
13115}
13116
13117/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13118struct WordBreakingTokenizer<'a> {
13119 input: &'a str,
13120}
13121
13122impl<'a> WordBreakingTokenizer<'a> {
13123 fn new(input: &'a str) -> Self {
13124 Self { input }
13125 }
13126}
13127
13128fn is_char_ideographic(ch: char) -> bool {
13129 use unicode_script::Script::*;
13130 use unicode_script::UnicodeScript;
13131 matches!(ch.script(), Han | Tangut | Yi)
13132}
13133
13134fn is_grapheme_ideographic(text: &str) -> bool {
13135 text.chars().any(is_char_ideographic)
13136}
13137
13138fn is_grapheme_whitespace(text: &str) -> bool {
13139 text.chars().any(|x| x.is_whitespace())
13140}
13141
13142fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13143 text.chars().next().map_or(false, |ch| {
13144 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13145 })
13146}
13147
13148#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13149struct WordBreakToken<'a> {
13150 token: &'a str,
13151 grapheme_len: usize,
13152 is_whitespace: bool,
13153}
13154
13155impl<'a> Iterator for WordBreakingTokenizer<'a> {
13156 /// Yields a span, the count of graphemes in the token, and whether it was
13157 /// whitespace. Note that it also breaks at word boundaries.
13158 type Item = WordBreakToken<'a>;
13159
13160 fn next(&mut self) -> Option<Self::Item> {
13161 use unicode_segmentation::UnicodeSegmentation;
13162 if self.input.is_empty() {
13163 return None;
13164 }
13165
13166 let mut iter = self.input.graphemes(true).peekable();
13167 let mut offset = 0;
13168 let mut graphemes = 0;
13169 if let Some(first_grapheme) = iter.next() {
13170 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13171 offset += first_grapheme.len();
13172 graphemes += 1;
13173 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13174 if let Some(grapheme) = iter.peek().copied() {
13175 if should_stay_with_preceding_ideograph(grapheme) {
13176 offset += grapheme.len();
13177 graphemes += 1;
13178 }
13179 }
13180 } else {
13181 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13182 let mut next_word_bound = words.peek().copied();
13183 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13184 next_word_bound = words.next();
13185 }
13186 while let Some(grapheme) = iter.peek().copied() {
13187 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13188 break;
13189 };
13190 if is_grapheme_whitespace(grapheme) != is_whitespace {
13191 break;
13192 };
13193 offset += grapheme.len();
13194 graphemes += 1;
13195 iter.next();
13196 }
13197 }
13198 let token = &self.input[..offset];
13199 self.input = &self.input[offset..];
13200 if is_whitespace {
13201 Some(WordBreakToken {
13202 token: " ",
13203 grapheme_len: 1,
13204 is_whitespace: true,
13205 })
13206 } else {
13207 Some(WordBreakToken {
13208 token,
13209 grapheme_len: graphemes,
13210 is_whitespace: false,
13211 })
13212 }
13213 } else {
13214 None
13215 }
13216 }
13217}
13218
13219#[test]
13220fn test_word_breaking_tokenizer() {
13221 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13222 ("", &[]),
13223 (" ", &[(" ", 1, true)]),
13224 ("Ʒ", &[("Ʒ", 1, false)]),
13225 ("Ǽ", &[("Ǽ", 1, false)]),
13226 ("⋑", &[("⋑", 1, false)]),
13227 ("⋑⋑", &[("⋑⋑", 2, false)]),
13228 (
13229 "原理，进而",
13230 &[
13231 ("原", 1, false),
13232 ("理，", 2, false),
13233 ("进", 1, false),
13234 ("而", 1, false),
13235 ],
13236 ),
13237 (
13238 "hello world",
13239 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13240 ),
13241 (
13242 "hello, world",
13243 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13244 ),
13245 (
13246 " hello world",
13247 &[
13248 (" ", 1, true),
13249 ("hello", 5, false),
13250 (" ", 1, true),
13251 ("world", 5, false),
13252 ],
13253 ),
13254 (
13255 "这是什么 \n 钢笔",
13256 &[
13257 ("这", 1, false),
13258 ("是", 1, false),
13259 ("什", 1, false),
13260 ("么", 1, false),
13261 (" ", 1, true),
13262 ("钢", 1, false),
13263 ("笔", 1, false),
13264 ],
13265 ),
13266 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13267 ];
13268
13269 for (input, result) in tests {
13270 assert_eq!(
13271 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13272 result
13273 .iter()
13274 .copied()
13275 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13276 token,
13277 grapheme_len,
13278 is_whitespace,
13279 })
13280 .collect::<Vec<_>>()
13281 );
13282 }
13283}
13284
13285fn wrap_with_prefix(
13286 line_prefix: String,
13287 unwrapped_text: String,
13288 wrap_column: usize,
13289 tab_size: NonZeroU32,
13290) -> String {
13291 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13292 let mut wrapped_text = String::new();
13293 let mut current_line = line_prefix.clone();
13294
13295 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13296 let mut current_line_len = line_prefix_len;
13297 for WordBreakToken {
13298 token,
13299 grapheme_len,
13300 is_whitespace,
13301 } in tokenizer
13302 {
13303 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13304 wrapped_text.push_str(current_line.trim_end());
13305 wrapped_text.push('\n');
13306 current_line.truncate(line_prefix.len());
13307 current_line_len = line_prefix_len;
13308 if !is_whitespace {
13309 current_line.push_str(token);
13310 current_line_len += grapheme_len;
13311 }
13312 } else if !is_whitespace {
13313 current_line.push_str(token);
13314 current_line_len += grapheme_len;
13315 } else if current_line_len != line_prefix_len {
13316 current_line.push(' ');
13317 current_line_len += 1;
13318 }
13319 }
13320
13321 if !current_line.is_empty() {
13322 wrapped_text.push_str(¤t_line);
13323 }
13324 wrapped_text
13325}
13326
13327#[test]
13328fn test_wrap_with_prefix() {
13329 assert_eq!(
13330 wrap_with_prefix(
13331 "# ".to_string(),
13332 "abcdefg".to_string(),
13333 4,
13334 NonZeroU32::new(4).unwrap()
13335 ),
13336 "# abcdefg"
13337 );
13338 assert_eq!(
13339 wrap_with_prefix(
13340 "".to_string(),
13341 "\thello world".to_string(),
13342 8,
13343 NonZeroU32::new(4).unwrap()
13344 ),
13345 "hello\nworld"
13346 );
13347 assert_eq!(
13348 wrap_with_prefix(
13349 "// ".to_string(),
13350 "xx \nyy zz aa bb cc".to_string(),
13351 12,
13352 NonZeroU32::new(4).unwrap()
13353 ),
13354 "// xx yy zz\n// aa bb cc"
13355 );
13356 assert_eq!(
13357 wrap_with_prefix(
13358 String::new(),
13359 "这是什么 \n 钢笔".to_string(),
13360 3,
13361 NonZeroU32::new(4).unwrap()
13362 ),
13363 "这是什\n么 钢\n笔"
13364 );
13365}
13366
13367fn hunks_for_selections(
13368 multi_buffer_snapshot: &MultiBufferSnapshot,
13369 selections: &[Selection<Anchor>],
13370) -> Vec<MultiBufferDiffHunk> {
13371 let buffer_rows_for_selections = selections.iter().map(|selection| {
13372 let head = selection.head();
13373 let tail = selection.tail();
13374 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
13375 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
13376 if start > end {
13377 end..start
13378 } else {
13379 start..end
13380 }
13381 });
13382
13383 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
13384}
13385
13386pub fn hunks_for_rows(
13387 rows: impl Iterator<Item = Range<MultiBufferRow>>,
13388 multi_buffer_snapshot: &MultiBufferSnapshot,
13389) -> Vec<MultiBufferDiffHunk> {
13390 let mut hunks = Vec::new();
13391 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13392 HashMap::default();
13393 for selected_multi_buffer_rows in rows {
13394 let query_rows =
13395 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
13396 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
13397 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13398 // when the caret is just above or just below the deleted hunk.
13399 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13400 let related_to_selection = if allow_adjacent {
13401 hunk.row_range.overlaps(&query_rows)
13402 || hunk.row_range.start == query_rows.end
13403 || hunk.row_range.end == query_rows.start
13404 } else {
13405 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
13406 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
13407 hunk.row_range.overlaps(&selected_multi_buffer_rows)
13408 || selected_multi_buffer_rows.end == hunk.row_range.start
13409 };
13410 if related_to_selection {
13411 if !processed_buffer_rows
13412 .entry(hunk.buffer_id)
13413 .or_default()
13414 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13415 {
13416 continue;
13417 }
13418 hunks.push(hunk);
13419 }
13420 }
13421 }
13422
13423 hunks
13424}
13425
13426pub trait CollaborationHub {
13427 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13428 fn user_participant_indices<'a>(
13429 &self,
13430 cx: &'a AppContext,
13431 ) -> &'a HashMap<u64, ParticipantIndex>;
13432 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13433}
13434
13435impl CollaborationHub for Model<Project> {
13436 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13437 self.read(cx).collaborators()
13438 }
13439
13440 fn user_participant_indices<'a>(
13441 &self,
13442 cx: &'a AppContext,
13443 ) -> &'a HashMap<u64, ParticipantIndex> {
13444 self.read(cx).user_store().read(cx).participant_indices()
13445 }
13446
13447 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13448 let this = self.read(cx);
13449 let user_ids = this.collaborators().values().map(|c| c.user_id);
13450 this.user_store().read_with(cx, |user_store, cx| {
13451 user_store.participant_names(user_ids, cx)
13452 })
13453 }
13454}
13455
13456pub trait SemanticsProvider {
13457 fn hover(
13458 &self,
13459 buffer: &Model<Buffer>,
13460 position: text::Anchor,
13461 cx: &mut AppContext,
13462 ) -> Option<Task<Vec<project::Hover>>>;
13463
13464 fn inlay_hints(
13465 &self,
13466 buffer_handle: Model<Buffer>,
13467 range: Range<text::Anchor>,
13468 cx: &mut AppContext,
13469 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13470
13471 fn resolve_inlay_hint(
13472 &self,
13473 hint: InlayHint,
13474 buffer_handle: Model<Buffer>,
13475 server_id: LanguageServerId,
13476 cx: &mut AppContext,
13477 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13478
13479 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13480
13481 fn document_highlights(
13482 &self,
13483 buffer: &Model<Buffer>,
13484 position: text::Anchor,
13485 cx: &mut AppContext,
13486 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13487
13488 fn definitions(
13489 &self,
13490 buffer: &Model<Buffer>,
13491 position: text::Anchor,
13492 kind: GotoDefinitionKind,
13493 cx: &mut AppContext,
13494 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13495
13496 fn range_for_rename(
13497 &self,
13498 buffer: &Model<Buffer>,
13499 position: text::Anchor,
13500 cx: &mut AppContext,
13501 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13502
13503 fn perform_rename(
13504 &self,
13505 buffer: &Model<Buffer>,
13506 position: text::Anchor,
13507 new_name: String,
13508 cx: &mut AppContext,
13509 ) -> Option<Task<Result<ProjectTransaction>>>;
13510}
13511
13512pub trait CompletionProvider {
13513 fn completions(
13514 &self,
13515 buffer: &Model<Buffer>,
13516 buffer_position: text::Anchor,
13517 trigger: CompletionContext,
13518 cx: &mut ViewContext<Editor>,
13519 ) -> Task<Result<Vec<Completion>>>;
13520
13521 fn resolve_completions(
13522 &self,
13523 buffer: Model<Buffer>,
13524 completion_indices: Vec<usize>,
13525 completions: Arc<RwLock<Box<[Completion]>>>,
13526 cx: &mut ViewContext<Editor>,
13527 ) -> Task<Result<bool>>;
13528
13529 fn apply_additional_edits_for_completion(
13530 &self,
13531 buffer: Model<Buffer>,
13532 completion: Completion,
13533 push_to_history: bool,
13534 cx: &mut ViewContext<Editor>,
13535 ) -> Task<Result<Option<language::Transaction>>>;
13536
13537 fn is_completion_trigger(
13538 &self,
13539 buffer: &Model<Buffer>,
13540 position: language::Anchor,
13541 text: &str,
13542 trigger_in_words: bool,
13543 cx: &mut ViewContext<Editor>,
13544 ) -> bool;
13545
13546 fn sort_completions(&self) -> bool {
13547 true
13548 }
13549}
13550
13551pub trait CodeActionProvider {
13552 fn code_actions(
13553 &self,
13554 buffer: &Model<Buffer>,
13555 range: Range<text::Anchor>,
13556 cx: &mut WindowContext,
13557 ) -> Task<Result<Vec<CodeAction>>>;
13558
13559 fn apply_code_action(
13560 &self,
13561 buffer_handle: Model<Buffer>,
13562 action: CodeAction,
13563 excerpt_id: ExcerptId,
13564 push_to_history: bool,
13565 cx: &mut WindowContext,
13566 ) -> Task<Result<ProjectTransaction>>;
13567}
13568
13569impl CodeActionProvider for Model<Project> {
13570 fn code_actions(
13571 &self,
13572 buffer: &Model<Buffer>,
13573 range: Range<text::Anchor>,
13574 cx: &mut WindowContext,
13575 ) -> Task<Result<Vec<CodeAction>>> {
13576 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
13577 }
13578
13579 fn apply_code_action(
13580 &self,
13581 buffer_handle: Model<Buffer>,
13582 action: CodeAction,
13583 _excerpt_id: ExcerptId,
13584 push_to_history: bool,
13585 cx: &mut WindowContext,
13586 ) -> Task<Result<ProjectTransaction>> {
13587 self.update(cx, |project, cx| {
13588 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13589 })
13590 }
13591}
13592
13593fn snippet_completions(
13594 project: &Project,
13595 buffer: &Model<Buffer>,
13596 buffer_position: text::Anchor,
13597 cx: &mut AppContext,
13598) -> Vec<Completion> {
13599 let language = buffer.read(cx).language_at(buffer_position);
13600 let language_name = language.as_ref().map(|language| language.lsp_id());
13601 let snippet_store = project.snippets().read(cx);
13602 let snippets = snippet_store.snippets_for(language_name, cx);
13603
13604 if snippets.is_empty() {
13605 return vec![];
13606 }
13607 let snapshot = buffer.read(cx).text_snapshot();
13608 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13609
13610 let scope = language.map(|language| language.default_scope());
13611 let classifier = CharClassifier::new(scope).for_completion(true);
13612 let mut last_word = chars
13613 .take_while(|c| classifier.is_word(*c))
13614 .collect::<String>();
13615 last_word = last_word.chars().rev().collect();
13616 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13617 let to_lsp = |point: &text::Anchor| {
13618 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13619 point_to_lsp(end)
13620 };
13621 let lsp_end = to_lsp(&buffer_position);
13622 snippets
13623 .into_iter()
13624 .filter_map(|snippet| {
13625 let matching_prefix = snippet
13626 .prefix
13627 .iter()
13628 .find(|prefix| prefix.starts_with(&last_word))?;
13629 let start = as_offset - last_word.len();
13630 let start = snapshot.anchor_before(start);
13631 let range = start..buffer_position;
13632 let lsp_start = to_lsp(&start);
13633 let lsp_range = lsp::Range {
13634 start: lsp_start,
13635 end: lsp_end,
13636 };
13637 Some(Completion {
13638 old_range: range,
13639 new_text: snippet.body.clone(),
13640 label: CodeLabel {
13641 text: matching_prefix.clone(),
13642 runs: vec![],
13643 filter_range: 0..matching_prefix.len(),
13644 },
13645 server_id: LanguageServerId(usize::MAX),
13646 documentation: snippet.description.clone().map(Documentation::SingleLine),
13647 lsp_completion: lsp::CompletionItem {
13648 label: snippet.prefix.first().unwrap().clone(),
13649 kind: Some(CompletionItemKind::SNIPPET),
13650 label_details: snippet.description.as_ref().map(|description| {
13651 lsp::CompletionItemLabelDetails {
13652 detail: Some(description.clone()),
13653 description: None,
13654 }
13655 }),
13656 insert_text_format: Some(InsertTextFormat::SNIPPET),
13657 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13658 lsp::InsertReplaceEdit {
13659 new_text: snippet.body.clone(),
13660 insert: lsp_range,
13661 replace: lsp_range,
13662 },
13663 )),
13664 filter_text: Some(snippet.body.clone()),
13665 sort_text: Some(char::MAX.to_string()),
13666 ..Default::default()
13667 },
13668 confirm: None,
13669 })
13670 })
13671 .collect()
13672}
13673
13674impl CompletionProvider for Model<Project> {
13675 fn completions(
13676 &self,
13677 buffer: &Model<Buffer>,
13678 buffer_position: text::Anchor,
13679 options: CompletionContext,
13680 cx: &mut ViewContext<Editor>,
13681 ) -> Task<Result<Vec<Completion>>> {
13682 self.update(cx, |project, cx| {
13683 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13684 let project_completions = project.completions(buffer, buffer_position, options, cx);
13685 cx.background_executor().spawn(async move {
13686 let mut completions = project_completions.await?;
13687 //let snippets = snippets.into_iter().;
13688 completions.extend(snippets);
13689 Ok(completions)
13690 })
13691 })
13692 }
13693
13694 fn resolve_completions(
13695 &self,
13696 buffer: Model<Buffer>,
13697 completion_indices: Vec<usize>,
13698 completions: Arc<RwLock<Box<[Completion]>>>,
13699 cx: &mut ViewContext<Editor>,
13700 ) -> Task<Result<bool>> {
13701 self.update(cx, |project, cx| {
13702 project.resolve_completions(buffer, completion_indices, completions, cx)
13703 })
13704 }
13705
13706 fn apply_additional_edits_for_completion(
13707 &self,
13708 buffer: Model<Buffer>,
13709 completion: Completion,
13710 push_to_history: bool,
13711 cx: &mut ViewContext<Editor>,
13712 ) -> Task<Result<Option<language::Transaction>>> {
13713 self.update(cx, |project, cx| {
13714 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13715 })
13716 }
13717
13718 fn is_completion_trigger(
13719 &self,
13720 buffer: &Model<Buffer>,
13721 position: language::Anchor,
13722 text: &str,
13723 trigger_in_words: bool,
13724 cx: &mut ViewContext<Editor>,
13725 ) -> bool {
13726 if !EditorSettings::get_global(cx).show_completions_on_input {
13727 return false;
13728 }
13729
13730 let mut chars = text.chars();
13731 let char = if let Some(char) = chars.next() {
13732 char
13733 } else {
13734 return false;
13735 };
13736 if chars.next().is_some() {
13737 return false;
13738 }
13739
13740 let buffer = buffer.read(cx);
13741 let classifier = buffer
13742 .snapshot()
13743 .char_classifier_at(position)
13744 .for_completion(true);
13745 if trigger_in_words && classifier.is_word(char) {
13746 return true;
13747 }
13748
13749 buffer
13750 .completion_triggers()
13751 .iter()
13752 .any(|string| string == text)
13753 }
13754}
13755
13756impl SemanticsProvider for Model<Project> {
13757 fn hover(
13758 &self,
13759 buffer: &Model<Buffer>,
13760 position: text::Anchor,
13761 cx: &mut AppContext,
13762 ) -> Option<Task<Vec<project::Hover>>> {
13763 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13764 }
13765
13766 fn document_highlights(
13767 &self,
13768 buffer: &Model<Buffer>,
13769 position: text::Anchor,
13770 cx: &mut AppContext,
13771 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13772 Some(self.update(cx, |project, cx| {
13773 project.document_highlights(buffer, position, cx)
13774 }))
13775 }
13776
13777 fn definitions(
13778 &self,
13779 buffer: &Model<Buffer>,
13780 position: text::Anchor,
13781 kind: GotoDefinitionKind,
13782 cx: &mut AppContext,
13783 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13784 Some(self.update(cx, |project, cx| match kind {
13785 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13786 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13787 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13788 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13789 }))
13790 }
13791
13792 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13793 // TODO: make this work for remote projects
13794 self.read(cx)
13795 .language_servers_for_buffer(buffer.read(cx), cx)
13796 .any(
13797 |(_, server)| match server.capabilities().inlay_hint_provider {
13798 Some(lsp::OneOf::Left(enabled)) => enabled,
13799 Some(lsp::OneOf::Right(_)) => true,
13800 None => false,
13801 },
13802 )
13803 }
13804
13805 fn inlay_hints(
13806 &self,
13807 buffer_handle: Model<Buffer>,
13808 range: Range<text::Anchor>,
13809 cx: &mut AppContext,
13810 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13811 Some(self.update(cx, |project, cx| {
13812 project.inlay_hints(buffer_handle, range, cx)
13813 }))
13814 }
13815
13816 fn resolve_inlay_hint(
13817 &self,
13818 hint: InlayHint,
13819 buffer_handle: Model<Buffer>,
13820 server_id: LanguageServerId,
13821 cx: &mut AppContext,
13822 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13823 Some(self.update(cx, |project, cx| {
13824 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13825 }))
13826 }
13827
13828 fn range_for_rename(
13829 &self,
13830 buffer: &Model<Buffer>,
13831 position: text::Anchor,
13832 cx: &mut AppContext,
13833 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13834 Some(self.update(cx, |project, cx| {
13835 project.prepare_rename(buffer.clone(), position, cx)
13836 }))
13837 }
13838
13839 fn perform_rename(
13840 &self,
13841 buffer: &Model<Buffer>,
13842 position: text::Anchor,
13843 new_name: String,
13844 cx: &mut AppContext,
13845 ) -> Option<Task<Result<ProjectTransaction>>> {
13846 Some(self.update(cx, |project, cx| {
13847 project.perform_rename(buffer.clone(), position, new_name, cx)
13848 }))
13849 }
13850}
13851
13852fn inlay_hint_settings(
13853 location: Anchor,
13854 snapshot: &MultiBufferSnapshot,
13855 cx: &mut ViewContext<'_, Editor>,
13856) -> InlayHintSettings {
13857 let file = snapshot.file_at(location);
13858 let language = snapshot.language_at(location).map(|l| l.name());
13859 language_settings(language, file, cx).inlay_hints
13860}
13861
13862fn consume_contiguous_rows(
13863 contiguous_row_selections: &mut Vec<Selection<Point>>,
13864 selection: &Selection<Point>,
13865 display_map: &DisplaySnapshot,
13866 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13867) -> (MultiBufferRow, MultiBufferRow) {
13868 contiguous_row_selections.push(selection.clone());
13869 let start_row = MultiBufferRow(selection.start.row);
13870 let mut end_row = ending_row(selection, display_map);
13871
13872 while let Some(next_selection) = selections.peek() {
13873 if next_selection.start.row <= end_row.0 {
13874 end_row = ending_row(next_selection, display_map);
13875 contiguous_row_selections.push(selections.next().unwrap().clone());
13876 } else {
13877 break;
13878 }
13879 }
13880 (start_row, end_row)
13881}
13882
13883fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13884 if next_selection.end.column > 0 || next_selection.is_empty() {
13885 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13886 } else {
13887 MultiBufferRow(next_selection.end.row)
13888 }
13889}
13890
13891impl EditorSnapshot {
13892 pub fn remote_selections_in_range<'a>(
13893 &'a self,
13894 range: &'a Range<Anchor>,
13895 collaboration_hub: &dyn CollaborationHub,
13896 cx: &'a AppContext,
13897 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13898 let participant_names = collaboration_hub.user_names(cx);
13899 let participant_indices = collaboration_hub.user_participant_indices(cx);
13900 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13901 let collaborators_by_replica_id = collaborators_by_peer_id
13902 .iter()
13903 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13904 .collect::<HashMap<_, _>>();
13905 self.buffer_snapshot
13906 .selections_in_range(range, false)
13907 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13908 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13909 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13910 let user_name = participant_names.get(&collaborator.user_id).cloned();
13911 Some(RemoteSelection {
13912 replica_id,
13913 selection,
13914 cursor_shape,
13915 line_mode,
13916 participant_index,
13917 peer_id: collaborator.peer_id,
13918 user_name,
13919 })
13920 })
13921 }
13922
13923 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13924 self.display_snapshot.buffer_snapshot.language_at(position)
13925 }
13926
13927 pub fn is_focused(&self) -> bool {
13928 self.is_focused
13929 }
13930
13931 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13932 self.placeholder_text.as_ref()
13933 }
13934
13935 pub fn scroll_position(&self) -> gpui::Point<f32> {
13936 self.scroll_anchor.scroll_position(&self.display_snapshot)
13937 }
13938
13939 fn gutter_dimensions(
13940 &self,
13941 font_id: FontId,
13942 font_size: Pixels,
13943 em_width: Pixels,
13944 em_advance: Pixels,
13945 max_line_number_width: Pixels,
13946 cx: &AppContext,
13947 ) -> GutterDimensions {
13948 if !self.show_gutter {
13949 return GutterDimensions::default();
13950 }
13951 let descent = cx.text_system().descent(font_id, font_size);
13952
13953 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13954 matches!(
13955 ProjectSettings::get_global(cx).git.git_gutter,
13956 Some(GitGutterSetting::TrackedFiles)
13957 )
13958 });
13959 let gutter_settings = EditorSettings::get_global(cx).gutter;
13960 let show_line_numbers = self
13961 .show_line_numbers
13962 .unwrap_or(gutter_settings.line_numbers);
13963 let line_gutter_width = if show_line_numbers {
13964 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13965 let min_width_for_number_on_gutter = em_advance * 4.0;
13966 max_line_number_width.max(min_width_for_number_on_gutter)
13967 } else {
13968 0.0.into()
13969 };
13970
13971 let show_code_actions = self
13972 .show_code_actions
13973 .unwrap_or(gutter_settings.code_actions);
13974
13975 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13976
13977 let git_blame_entries_width =
13978 self.git_blame_gutter_max_author_length
13979 .map(|max_author_length| {
13980 // Length of the author name, but also space for the commit hash,
13981 // the spacing and the timestamp.
13982 let max_char_count = max_author_length
13983 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13984 + 7 // length of commit sha
13985 + 14 // length of max relative timestamp ("60 minutes ago")
13986 + 4; // gaps and margins
13987
13988 em_advance * max_char_count
13989 });
13990
13991 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13992 left_padding += if show_code_actions || show_runnables {
13993 em_width * 3.0
13994 } else if show_git_gutter && show_line_numbers {
13995 em_width * 2.0
13996 } else if show_git_gutter || show_line_numbers {
13997 em_width
13998 } else {
13999 px(0.)
14000 };
14001
14002 let right_padding = if gutter_settings.folds && show_line_numbers {
14003 em_width * 4.0
14004 } else if gutter_settings.folds {
14005 em_width * 3.0
14006 } else if show_line_numbers {
14007 em_width
14008 } else {
14009 px(0.)
14010 };
14011
14012 GutterDimensions {
14013 left_padding,
14014 right_padding,
14015 width: line_gutter_width + left_padding + right_padding,
14016 margin: -descent,
14017 git_blame_entries_width,
14018 }
14019 }
14020
14021 pub fn render_fold_toggle(
14022 &self,
14023 buffer_row: MultiBufferRow,
14024 row_contains_cursor: bool,
14025 editor: View<Editor>,
14026 cx: &mut WindowContext,
14027 ) -> Option<AnyElement> {
14028 let folded = self.is_line_folded(buffer_row);
14029
14030 if let Some(crease) = self
14031 .crease_snapshot
14032 .query_row(buffer_row, &self.buffer_snapshot)
14033 {
14034 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14035 if folded {
14036 editor.update(cx, |editor, cx| {
14037 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14038 });
14039 } else {
14040 editor.update(cx, |editor, cx| {
14041 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14042 });
14043 }
14044 });
14045
14046 Some((crease.render_toggle)(
14047 buffer_row,
14048 folded,
14049 toggle_callback,
14050 cx,
14051 ))
14052 } else if folded
14053 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
14054 {
14055 Some(
14056 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
14057 .selected(folded)
14058 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14059 if folded {
14060 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14061 } else {
14062 this.fold_at(&FoldAt { buffer_row }, cx);
14063 }
14064 }))
14065 .into_any_element(),
14066 )
14067 } else {
14068 None
14069 }
14070 }
14071
14072 pub fn render_crease_trailer(
14073 &self,
14074 buffer_row: MultiBufferRow,
14075 cx: &mut WindowContext,
14076 ) -> Option<AnyElement> {
14077 let folded = self.is_line_folded(buffer_row);
14078 let crease = self
14079 .crease_snapshot
14080 .query_row(buffer_row, &self.buffer_snapshot)?;
14081 Some((crease.render_trailer)(buffer_row, folded, cx))
14082 }
14083}
14084
14085impl Deref for EditorSnapshot {
14086 type Target = DisplaySnapshot;
14087
14088 fn deref(&self) -> &Self::Target {
14089 &self.display_snapshot
14090 }
14091}
14092
14093#[derive(Clone, Debug, PartialEq, Eq)]
14094pub enum EditorEvent {
14095 InputIgnored {
14096 text: Arc<str>,
14097 },
14098 InputHandled {
14099 utf16_range_to_replace: Option<Range<isize>>,
14100 text: Arc<str>,
14101 },
14102 ExcerptsAdded {
14103 buffer: Model<Buffer>,
14104 predecessor: ExcerptId,
14105 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14106 },
14107 ExcerptsRemoved {
14108 ids: Vec<ExcerptId>,
14109 },
14110 ExcerptsEdited {
14111 ids: Vec<ExcerptId>,
14112 },
14113 ExcerptsExpanded {
14114 ids: Vec<ExcerptId>,
14115 },
14116 BufferEdited,
14117 Edited {
14118 transaction_id: clock::Lamport,
14119 },
14120 Reparsed(BufferId),
14121 Focused,
14122 FocusedIn,
14123 Blurred,
14124 DirtyChanged,
14125 Saved,
14126 TitleChanged,
14127 DiffBaseChanged,
14128 SelectionsChanged {
14129 local: bool,
14130 },
14131 ScrollPositionChanged {
14132 local: bool,
14133 autoscroll: bool,
14134 },
14135 Closed,
14136 TransactionUndone {
14137 transaction_id: clock::Lamport,
14138 },
14139 TransactionBegun {
14140 transaction_id: clock::Lamport,
14141 },
14142 Reloaded,
14143 CursorShapeChanged,
14144}
14145
14146impl EventEmitter<EditorEvent> for Editor {}
14147
14148impl FocusableView for Editor {
14149 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14150 self.focus_handle.clone()
14151 }
14152}
14153
14154impl Render for Editor {
14155 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14156 let settings = ThemeSettings::get_global(cx);
14157
14158 let mut text_style = match self.mode {
14159 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14160 color: cx.theme().colors().editor_foreground,
14161 font_family: settings.ui_font.family.clone(),
14162 font_features: settings.ui_font.features.clone(),
14163 font_fallbacks: settings.ui_font.fallbacks.clone(),
14164 font_size: rems(0.875).into(),
14165 font_weight: settings.ui_font.weight,
14166 line_height: relative(settings.buffer_line_height.value()),
14167 ..Default::default()
14168 },
14169 EditorMode::Full => TextStyle {
14170 color: cx.theme().colors().editor_foreground,
14171 font_family: settings.buffer_font.family.clone(),
14172 font_features: settings.buffer_font.features.clone(),
14173 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14174 font_size: settings.buffer_font_size(cx).into(),
14175 font_weight: settings.buffer_font.weight,
14176 line_height: relative(settings.buffer_line_height.value()),
14177 ..Default::default()
14178 },
14179 };
14180 if let Some(text_style_refinement) = &self.text_style_refinement {
14181 text_style.refine(text_style_refinement)
14182 }
14183
14184 let background = match self.mode {
14185 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14186 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14187 EditorMode::Full => cx.theme().colors().editor_background,
14188 };
14189
14190 EditorElement::new(
14191 cx.view(),
14192 EditorStyle {
14193 background,
14194 local_player: cx.theme().players().local(),
14195 text: text_style,
14196 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14197 syntax: cx.theme().syntax().clone(),
14198 status: cx.theme().status().clone(),
14199 inlay_hints_style: make_inlay_hints_style(cx),
14200 suggestions_style: HighlightStyle {
14201 color: Some(cx.theme().status().predictive),
14202 ..HighlightStyle::default()
14203 },
14204 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14205 },
14206 )
14207 }
14208}
14209
14210impl ViewInputHandler for Editor {
14211 fn text_for_range(
14212 &mut self,
14213 range_utf16: Range<usize>,
14214 cx: &mut ViewContext<Self>,
14215 ) -> Option<String> {
14216 Some(
14217 self.buffer
14218 .read(cx)
14219 .read(cx)
14220 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
14221 .collect(),
14222 )
14223 }
14224
14225 fn selected_text_range(
14226 &mut self,
14227 ignore_disabled_input: bool,
14228 cx: &mut ViewContext<Self>,
14229 ) -> Option<UTF16Selection> {
14230 // Prevent the IME menu from appearing when holding down an alphabetic key
14231 // while input is disabled.
14232 if !ignore_disabled_input && !self.input_enabled {
14233 return None;
14234 }
14235
14236 let selection = self.selections.newest::<OffsetUtf16>(cx);
14237 let range = selection.range();
14238
14239 Some(UTF16Selection {
14240 range: range.start.0..range.end.0,
14241 reversed: selection.reversed,
14242 })
14243 }
14244
14245 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14246 let snapshot = self.buffer.read(cx).read(cx);
14247 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14248 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14249 }
14250
14251 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14252 self.clear_highlights::<InputComposition>(cx);
14253 self.ime_transaction.take();
14254 }
14255
14256 fn replace_text_in_range(
14257 &mut self,
14258 range_utf16: Option<Range<usize>>,
14259 text: &str,
14260 cx: &mut ViewContext<Self>,
14261 ) {
14262 if !self.input_enabled {
14263 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14264 return;
14265 }
14266
14267 self.transact(cx, |this, cx| {
14268 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14269 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14270 Some(this.selection_replacement_ranges(range_utf16, cx))
14271 } else {
14272 this.marked_text_ranges(cx)
14273 };
14274
14275 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14276 let newest_selection_id = this.selections.newest_anchor().id;
14277 this.selections
14278 .all::<OffsetUtf16>(cx)
14279 .iter()
14280 .zip(ranges_to_replace.iter())
14281 .find_map(|(selection, range)| {
14282 if selection.id == newest_selection_id {
14283 Some(
14284 (range.start.0 as isize - selection.head().0 as isize)
14285 ..(range.end.0 as isize - selection.head().0 as isize),
14286 )
14287 } else {
14288 None
14289 }
14290 })
14291 });
14292
14293 cx.emit(EditorEvent::InputHandled {
14294 utf16_range_to_replace: range_to_replace,
14295 text: text.into(),
14296 });
14297
14298 if let Some(new_selected_ranges) = new_selected_ranges {
14299 this.change_selections(None, cx, |selections| {
14300 selections.select_ranges(new_selected_ranges)
14301 });
14302 this.backspace(&Default::default(), cx);
14303 }
14304
14305 this.handle_input(text, cx);
14306 });
14307
14308 if let Some(transaction) = self.ime_transaction {
14309 self.buffer.update(cx, |buffer, cx| {
14310 buffer.group_until_transaction(transaction, cx);
14311 });
14312 }
14313
14314 self.unmark_text(cx);
14315 }
14316
14317 fn replace_and_mark_text_in_range(
14318 &mut self,
14319 range_utf16: Option<Range<usize>>,
14320 text: &str,
14321 new_selected_range_utf16: Option<Range<usize>>,
14322 cx: &mut ViewContext<Self>,
14323 ) {
14324 if !self.input_enabled {
14325 return;
14326 }
14327
14328 let transaction = self.transact(cx, |this, cx| {
14329 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14330 let snapshot = this.buffer.read(cx).read(cx);
14331 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14332 for marked_range in &mut marked_ranges {
14333 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14334 marked_range.start.0 += relative_range_utf16.start;
14335 marked_range.start =
14336 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14337 marked_range.end =
14338 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14339 }
14340 }
14341 Some(marked_ranges)
14342 } else if let Some(range_utf16) = range_utf16 {
14343 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14344 Some(this.selection_replacement_ranges(range_utf16, cx))
14345 } else {
14346 None
14347 };
14348
14349 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14350 let newest_selection_id = this.selections.newest_anchor().id;
14351 this.selections
14352 .all::<OffsetUtf16>(cx)
14353 .iter()
14354 .zip(ranges_to_replace.iter())
14355 .find_map(|(selection, range)| {
14356 if selection.id == newest_selection_id {
14357 Some(
14358 (range.start.0 as isize - selection.head().0 as isize)
14359 ..(range.end.0 as isize - selection.head().0 as isize),
14360 )
14361 } else {
14362 None
14363 }
14364 })
14365 });
14366
14367 cx.emit(EditorEvent::InputHandled {
14368 utf16_range_to_replace: range_to_replace,
14369 text: text.into(),
14370 });
14371
14372 if let Some(ranges) = ranges_to_replace {
14373 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14374 }
14375
14376 let marked_ranges = {
14377 let snapshot = this.buffer.read(cx).read(cx);
14378 this.selections
14379 .disjoint_anchors()
14380 .iter()
14381 .map(|selection| {
14382 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14383 })
14384 .collect::<Vec<_>>()
14385 };
14386
14387 if text.is_empty() {
14388 this.unmark_text(cx);
14389 } else {
14390 this.highlight_text::<InputComposition>(
14391 marked_ranges.clone(),
14392 HighlightStyle {
14393 underline: Some(UnderlineStyle {
14394 thickness: px(1.),
14395 color: None,
14396 wavy: false,
14397 }),
14398 ..Default::default()
14399 },
14400 cx,
14401 );
14402 }
14403
14404 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14405 let use_autoclose = this.use_autoclose;
14406 let use_auto_surround = this.use_auto_surround;
14407 this.set_use_autoclose(false);
14408 this.set_use_auto_surround(false);
14409 this.handle_input(text, cx);
14410 this.set_use_autoclose(use_autoclose);
14411 this.set_use_auto_surround(use_auto_surround);
14412
14413 if let Some(new_selected_range) = new_selected_range_utf16 {
14414 let snapshot = this.buffer.read(cx).read(cx);
14415 let new_selected_ranges = marked_ranges
14416 .into_iter()
14417 .map(|marked_range| {
14418 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14419 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14420 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14421 snapshot.clip_offset_utf16(new_start, Bias::Left)
14422 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14423 })
14424 .collect::<Vec<_>>();
14425
14426 drop(snapshot);
14427 this.change_selections(None, cx, |selections| {
14428 selections.select_ranges(new_selected_ranges)
14429 });
14430 }
14431 });
14432
14433 self.ime_transaction = self.ime_transaction.or(transaction);
14434 if let Some(transaction) = self.ime_transaction {
14435 self.buffer.update(cx, |buffer, cx| {
14436 buffer.group_until_transaction(transaction, cx);
14437 });
14438 }
14439
14440 if self.text_highlights::<InputComposition>(cx).is_none() {
14441 self.ime_transaction.take();
14442 }
14443 }
14444
14445 fn bounds_for_range(
14446 &mut self,
14447 range_utf16: Range<usize>,
14448 element_bounds: gpui::Bounds<Pixels>,
14449 cx: &mut ViewContext<Self>,
14450 ) -> Option<gpui::Bounds<Pixels>> {
14451 let text_layout_details = self.text_layout_details(cx);
14452 let style = &text_layout_details.editor_style;
14453 let font_id = cx.text_system().resolve_font(&style.text.font());
14454 let font_size = style.text.font_size.to_pixels(cx.rem_size());
14455 let line_height = style.text.line_height_in_pixels(cx.rem_size());
14456
14457 let em_width = cx
14458 .text_system()
14459 .typographic_bounds(font_id, font_size, 'm')
14460 .unwrap()
14461 .size
14462 .width;
14463
14464 let snapshot = self.snapshot(cx);
14465 let scroll_position = snapshot.scroll_position();
14466 let scroll_left = scroll_position.x * em_width;
14467
14468 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14469 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14470 + self.gutter_dimensions.width;
14471 let y = line_height * (start.row().as_f32() - scroll_position.y);
14472
14473 Some(Bounds {
14474 origin: element_bounds.origin + point(x, y),
14475 size: size(em_width, line_height),
14476 })
14477 }
14478}
14479
14480trait SelectionExt {
14481 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14482 fn spanned_rows(
14483 &self,
14484 include_end_if_at_line_start: bool,
14485 map: &DisplaySnapshot,
14486 ) -> Range<MultiBufferRow>;
14487}
14488
14489impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14490 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14491 let start = self
14492 .start
14493 .to_point(&map.buffer_snapshot)
14494 .to_display_point(map);
14495 let end = self
14496 .end
14497 .to_point(&map.buffer_snapshot)
14498 .to_display_point(map);
14499 if self.reversed {
14500 end..start
14501 } else {
14502 start..end
14503 }
14504 }
14505
14506 fn spanned_rows(
14507 &self,
14508 include_end_if_at_line_start: bool,
14509 map: &DisplaySnapshot,
14510 ) -> Range<MultiBufferRow> {
14511 let start = self.start.to_point(&map.buffer_snapshot);
14512 let mut end = self.end.to_point(&map.buffer_snapshot);
14513 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14514 end.row -= 1;
14515 }
14516
14517 let buffer_start = map.prev_line_boundary(start).0;
14518 let buffer_end = map.next_line_boundary(end).0;
14519 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14520 }
14521}
14522
14523impl<T: InvalidationRegion> InvalidationStack<T> {
14524 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14525 where
14526 S: Clone + ToOffset,
14527 {
14528 while let Some(region) = self.last() {
14529 let all_selections_inside_invalidation_ranges =
14530 if selections.len() == region.ranges().len() {
14531 selections
14532 .iter()
14533 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14534 .all(|(selection, invalidation_range)| {
14535 let head = selection.head().to_offset(buffer);
14536 invalidation_range.start <= head && invalidation_range.end >= head
14537 })
14538 } else {
14539 false
14540 };
14541
14542 if all_selections_inside_invalidation_ranges {
14543 break;
14544 } else {
14545 self.pop();
14546 }
14547 }
14548 }
14549}
14550
14551impl<T> Default for InvalidationStack<T> {
14552 fn default() -> Self {
14553 Self(Default::default())
14554 }
14555}
14556
14557impl<T> Deref for InvalidationStack<T> {
14558 type Target = Vec<T>;
14559
14560 fn deref(&self) -> &Self::Target {
14561 &self.0
14562 }
14563}
14564
14565impl<T> DerefMut for InvalidationStack<T> {
14566 fn deref_mut(&mut self) -> &mut Self::Target {
14567 &mut self.0
14568 }
14569}
14570
14571impl InvalidationRegion for SnippetState {
14572 fn ranges(&self) -> &[Range<Anchor>] {
14573 &self.ranges[self.active_index]
14574 }
14575}
14576
14577pub fn diagnostic_block_renderer(
14578 diagnostic: Diagnostic,
14579 max_message_rows: Option<u8>,
14580 allow_closing: bool,
14581 _is_valid: bool,
14582) -> RenderBlock {
14583 let (text_without_backticks, code_ranges) =
14584 highlight_diagnostic_message(&diagnostic, max_message_rows);
14585
14586 Box::new(move |cx: &mut BlockContext| {
14587 let group_id: SharedString = cx.block_id.to_string().into();
14588
14589 let mut text_style = cx.text_style().clone();
14590 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14591 let theme_settings = ThemeSettings::get_global(cx);
14592 text_style.font_family = theme_settings.buffer_font.family.clone();
14593 text_style.font_style = theme_settings.buffer_font.style;
14594 text_style.font_features = theme_settings.buffer_font.features.clone();
14595 text_style.font_weight = theme_settings.buffer_font.weight;
14596
14597 let multi_line_diagnostic = diagnostic.message.contains('\n');
14598
14599 let buttons = |diagnostic: &Diagnostic| {
14600 if multi_line_diagnostic {
14601 v_flex()
14602 } else {
14603 h_flex()
14604 }
14605 .when(allow_closing, |div| {
14606 div.children(diagnostic.is_primary.then(|| {
14607 IconButton::new("close-block", IconName::XCircle)
14608 .icon_color(Color::Muted)
14609 .size(ButtonSize::Compact)
14610 .style(ButtonStyle::Transparent)
14611 .visible_on_hover(group_id.clone())
14612 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14613 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14614 }))
14615 })
14616 .child(
14617 IconButton::new("copy-block", IconName::Copy)
14618 .icon_color(Color::Muted)
14619 .size(ButtonSize::Compact)
14620 .style(ButtonStyle::Transparent)
14621 .visible_on_hover(group_id.clone())
14622 .on_click({
14623 let message = diagnostic.message.clone();
14624 move |_click, cx| {
14625 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14626 }
14627 })
14628 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14629 )
14630 };
14631
14632 let icon_size = buttons(&diagnostic)
14633 .into_any_element()
14634 .layout_as_root(AvailableSpace::min_size(), cx);
14635
14636 h_flex()
14637 .id(cx.block_id)
14638 .group(group_id.clone())
14639 .relative()
14640 .size_full()
14641 .pl(cx.gutter_dimensions.width)
14642 .w(cx.max_width - cx.gutter_dimensions.full_width())
14643 .child(
14644 div()
14645 .flex()
14646 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14647 .flex_shrink(),
14648 )
14649 .child(buttons(&diagnostic))
14650 .child(div().flex().flex_shrink_0().child(
14651 StyledText::new(text_without_backticks.clone()).with_highlights(
14652 &text_style,
14653 code_ranges.iter().map(|range| {
14654 (
14655 range.clone(),
14656 HighlightStyle {
14657 font_weight: Some(FontWeight::BOLD),
14658 ..Default::default()
14659 },
14660 )
14661 }),
14662 ),
14663 ))
14664 .into_any_element()
14665 })
14666}
14667
14668pub fn highlight_diagnostic_message(
14669 diagnostic: &Diagnostic,
14670 mut max_message_rows: Option<u8>,
14671) -> (SharedString, Vec<Range<usize>>) {
14672 let mut text_without_backticks = String::new();
14673 let mut code_ranges = Vec::new();
14674
14675 if let Some(source) = &diagnostic.source {
14676 text_without_backticks.push_str(source);
14677 code_ranges.push(0..source.len());
14678 text_without_backticks.push_str(": ");
14679 }
14680
14681 let mut prev_offset = 0;
14682 let mut in_code_block = false;
14683 let has_row_limit = max_message_rows.is_some();
14684 let mut newline_indices = diagnostic
14685 .message
14686 .match_indices('\n')
14687 .filter(|_| has_row_limit)
14688 .map(|(ix, _)| ix)
14689 .fuse()
14690 .peekable();
14691
14692 for (quote_ix, _) in diagnostic
14693 .message
14694 .match_indices('`')
14695 .chain([(diagnostic.message.len(), "")])
14696 {
14697 let mut first_newline_ix = None;
14698 let mut last_newline_ix = None;
14699 while let Some(newline_ix) = newline_indices.peek() {
14700 if *newline_ix < quote_ix {
14701 if first_newline_ix.is_none() {
14702 first_newline_ix = Some(*newline_ix);
14703 }
14704 last_newline_ix = Some(*newline_ix);
14705
14706 if let Some(rows_left) = &mut max_message_rows {
14707 if *rows_left == 0 {
14708 break;
14709 } else {
14710 *rows_left -= 1;
14711 }
14712 }
14713 let _ = newline_indices.next();
14714 } else {
14715 break;
14716 }
14717 }
14718 let prev_len = text_without_backticks.len();
14719 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14720 text_without_backticks.push_str(new_text);
14721 if in_code_block {
14722 code_ranges.push(prev_len..text_without_backticks.len());
14723 }
14724 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14725 in_code_block = !in_code_block;
14726 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14727 text_without_backticks.push_str("...");
14728 break;
14729 }
14730 }
14731
14732 (text_without_backticks.into(), code_ranges)
14733}
14734
14735fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14736 match severity {
14737 DiagnosticSeverity::ERROR => colors.error,
14738 DiagnosticSeverity::WARNING => colors.warning,
14739 DiagnosticSeverity::INFORMATION => colors.info,
14740 DiagnosticSeverity::HINT => colors.info,
14741 _ => colors.ignored,
14742 }
14743}
14744
14745pub fn styled_runs_for_code_label<'a>(
14746 label: &'a CodeLabel,
14747 syntax_theme: &'a theme::SyntaxTheme,
14748) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14749 let fade_out = HighlightStyle {
14750 fade_out: Some(0.35),
14751 ..Default::default()
14752 };
14753
14754 let mut prev_end = label.filter_range.end;
14755 label
14756 .runs
14757 .iter()
14758 .enumerate()
14759 .flat_map(move |(ix, (range, highlight_id))| {
14760 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14761 style
14762 } else {
14763 return Default::default();
14764 };
14765 let mut muted_style = style;
14766 muted_style.highlight(fade_out);
14767
14768 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14769 if range.start >= label.filter_range.end {
14770 if range.start > prev_end {
14771 runs.push((prev_end..range.start, fade_out));
14772 }
14773 runs.push((range.clone(), muted_style));
14774 } else if range.end <= label.filter_range.end {
14775 runs.push((range.clone(), style));
14776 } else {
14777 runs.push((range.start..label.filter_range.end, style));
14778 runs.push((label.filter_range.end..range.end, muted_style));
14779 }
14780 prev_end = cmp::max(prev_end, range.end);
14781
14782 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14783 runs.push((prev_end..label.text.len(), fade_out));
14784 }
14785
14786 runs
14787 })
14788}
14789
14790pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14791 let mut prev_index = 0;
14792 let mut prev_codepoint: Option<char> = None;
14793 text.char_indices()
14794 .chain([(text.len(), '\0')])
14795 .filter_map(move |(index, codepoint)| {
14796 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14797 let is_boundary = index == text.len()
14798 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14799 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14800 if is_boundary {
14801 let chunk = &text[prev_index..index];
14802 prev_index = index;
14803 Some(chunk)
14804 } else {
14805 None
14806 }
14807 })
14808}
14809
14810pub trait RangeToAnchorExt: Sized {
14811 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14812
14813 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14814 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14815 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14816 }
14817}
14818
14819impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14820 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14821 let start_offset = self.start.to_offset(snapshot);
14822 let end_offset = self.end.to_offset(snapshot);
14823 if start_offset == end_offset {
14824 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14825 } else {
14826 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14827 }
14828 }
14829}
14830
14831pub trait RowExt {
14832 fn as_f32(&self) -> f32;
14833
14834 fn next_row(&self) -> Self;
14835
14836 fn previous_row(&self) -> Self;
14837
14838 fn minus(&self, other: Self) -> u32;
14839}
14840
14841impl RowExt for DisplayRow {
14842 fn as_f32(&self) -> f32 {
14843 self.0 as f32
14844 }
14845
14846 fn next_row(&self) -> Self {
14847 Self(self.0 + 1)
14848 }
14849
14850 fn previous_row(&self) -> Self {
14851 Self(self.0.saturating_sub(1))
14852 }
14853
14854 fn minus(&self, other: Self) -> u32 {
14855 self.0 - other.0
14856 }
14857}
14858
14859impl RowExt for MultiBufferRow {
14860 fn as_f32(&self) -> f32 {
14861 self.0 as f32
14862 }
14863
14864 fn next_row(&self) -> Self {
14865 Self(self.0 + 1)
14866 }
14867
14868 fn previous_row(&self) -> Self {
14869 Self(self.0.saturating_sub(1))
14870 }
14871
14872 fn minus(&self, other: Self) -> u32 {
14873 self.0 - other.0
14874 }
14875}
14876
14877trait RowRangeExt {
14878 type Row;
14879
14880 fn len(&self) -> usize;
14881
14882 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14883}
14884
14885impl RowRangeExt for Range<MultiBufferRow> {
14886 type Row = MultiBufferRow;
14887
14888 fn len(&self) -> usize {
14889 (self.end.0 - self.start.0) as usize
14890 }
14891
14892 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14893 (self.start.0..self.end.0).map(MultiBufferRow)
14894 }
14895}
14896
14897impl RowRangeExt for Range<DisplayRow> {
14898 type Row = DisplayRow;
14899
14900 fn len(&self) -> usize {
14901 (self.end.0 - self.start.0) as usize
14902 }
14903
14904 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14905 (self.start.0..self.end.0).map(DisplayRow)
14906 }
14907}
14908
14909fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14910 if hunk.diff_base_byte_range.is_empty() {
14911 DiffHunkStatus::Added
14912 } else if hunk.row_range.is_empty() {
14913 DiffHunkStatus::Removed
14914 } else {
14915 DiffHunkStatus::Modified
14916 }
14917}
14918
14919/// If select range has more than one line, we
14920/// just point the cursor to range.start.
14921fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14922 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14923 range
14924 } else {
14925 range.start..range.start
14926 }
14927}