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, MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString,
79 Size, StrikethroughStyle, Styled, StyledText, Subscription, Task, TextStyle,
80 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 task::{ResolvedTask, TaskTemplate, TaskVariables};
107
108use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
109pub use lsp::CompletionContext;
110use lsp::{
111 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
112 LanguageServerId,
113};
114use mouse_context_menu::MouseContextMenu;
115use movement::TextLayoutDetails;
116pub use multi_buffer::{
117 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
118 ToPoint,
119};
120use multi_buffer::{
121 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
122};
123use ordered_float::OrderedFloat;
124use parking_lot::{Mutex, RwLock};
125use project::{
126 lsp_store::{FormatTarget, FormatTrigger},
127 project_settings::{GitGutterSetting, ProjectSettings},
128 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Item, Location,
129 LocationLink, Project, ProjectPath, ProjectTransaction, TaskSourceKind,
130};
131use rand::prelude::*;
132use rpc::{proto::*, ErrorExt};
133use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
134use selections_collection::{
135 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
136};
137use serde::{Deserialize, Serialize};
138use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
139use smallvec::SmallVec;
140use snippet::Snippet;
141use std::{
142 any::TypeId,
143 borrow::Cow,
144 cell::RefCell,
145 cmp::{self, Ordering, Reverse},
146 mem,
147 num::NonZeroU32,
148 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
149 path::{Path, PathBuf},
150 rc::Rc,
151 sync::Arc,
152 time::{Duration, Instant},
153};
154pub use sum_tree::Bias;
155use sum_tree::TreeMap;
156use text::{BufferId, OffsetUtf16, Rope};
157use theme::{
158 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
159 ThemeColors, ThemeSettings,
160};
161use ui::{
162 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
163 ListItem, Popover, PopoverMenuHandle, Tooltip,
164};
165use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
166use workspace::item::{ItemHandle, PreviewTabsSettings};
167use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
168use workspace::{
169 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
170};
171use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
172
173use crate::hover_links::find_url;
174use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
175
176pub const FILE_HEADER_HEIGHT: u32 = 2;
177pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
178pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
179pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
180const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
181const MAX_LINE_LEN: usize = 1024;
182const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
183const MAX_SELECTION_HISTORY_LEN: usize = 1024;
184pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
185#[doc(hidden)]
186pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
187#[doc(hidden)]
188pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
189
190pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
191pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
192
193pub fn render_parsed_markdown(
194 element_id: impl Into<ElementId>,
195 parsed: &language::ParsedMarkdown,
196 editor_style: &EditorStyle,
197 workspace: Option<WeakView<Workspace>>,
198 cx: &mut WindowContext,
199) -> InteractiveText {
200 let code_span_background_color = cx
201 .theme()
202 .colors()
203 .editor_document_highlight_read_background;
204
205 let highlights = gpui::combine_highlights(
206 parsed.highlights.iter().filter_map(|(range, highlight)| {
207 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
208 Some((range.clone(), highlight))
209 }),
210 parsed
211 .regions
212 .iter()
213 .zip(&parsed.region_ranges)
214 .filter_map(|(region, range)| {
215 if region.code {
216 Some((
217 range.clone(),
218 HighlightStyle {
219 background_color: Some(code_span_background_color),
220 ..Default::default()
221 },
222 ))
223 } else {
224 None
225 }
226 }),
227 );
228
229 let mut links = Vec::new();
230 let mut link_ranges = Vec::new();
231 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
232 if let Some(link) = region.link.clone() {
233 links.push(link);
234 link_ranges.push(range.clone());
235 }
236 }
237
238 InteractiveText::new(
239 element_id,
240 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
241 )
242 .on_click(link_ranges, move |clicked_range_ix, cx| {
243 match &links[clicked_range_ix] {
244 markdown::Link::Web { url } => cx.open_url(url),
245 markdown::Link::Path { path } => {
246 if let Some(workspace) = &workspace {
247 _ = workspace.update(cx, |workspace, cx| {
248 workspace.open_abs_path(path.clone(), false, cx).detach();
249 });
250 }
251 }
252 }
253 })
254}
255
256#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
257pub(crate) enum InlayId {
258 Suggestion(usize),
259 Hint(usize),
260}
261
262impl InlayId {
263 fn id(&self) -> usize {
264 match self {
265 Self::Suggestion(id) => *id,
266 Self::Hint(id) => *id,
267 }
268 }
269}
270
271enum DiffRowHighlight {}
272enum DocumentHighlightRead {}
273enum DocumentHighlightWrite {}
274enum InputComposition {}
275
276#[derive(Copy, Clone, PartialEq, Eq)]
277pub enum Direction {
278 Prev,
279 Next,
280}
281
282#[derive(Debug, Copy, Clone, PartialEq, Eq)]
283pub enum Navigated {
284 Yes,
285 No,
286}
287
288impl Navigated {
289 pub fn from_bool(yes: bool) -> Navigated {
290 if yes {
291 Navigated::Yes
292 } else {
293 Navigated::No
294 }
295 }
296}
297
298pub fn init_settings(cx: &mut AppContext) {
299 EditorSettings::register(cx);
300}
301
302pub fn init(cx: &mut AppContext) {
303 init_settings(cx);
304
305 workspace::register_project_item::<Editor>(cx);
306 workspace::FollowableViewRegistry::register::<Editor>(cx);
307 workspace::register_serializable_item::<Editor>(cx);
308
309 cx.observe_new_views(
310 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
311 workspace.register_action(Editor::new_file);
312 workspace.register_action(Editor::new_file_vertical);
313 workspace.register_action(Editor::new_file_horizontal);
314 },
315 )
316 .detach();
317
318 cx.on_action(move |_: &workspace::NewFile, cx| {
319 let app_state = workspace::AppState::global(cx);
320 if let Some(app_state) = app_state.upgrade() {
321 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
322 Editor::new_file(workspace, &Default::default(), cx)
323 })
324 .detach();
325 }
326 });
327 cx.on_action(move |_: &workspace::NewWindow, cx| {
328 let app_state = workspace::AppState::global(cx);
329 if let Some(app_state) = app_state.upgrade() {
330 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
331 Editor::new_file(workspace, &Default::default(), cx)
332 })
333 .detach();
334 }
335 });
336}
337
338pub struct SearchWithinRange;
339
340trait InvalidationRegion {
341 fn ranges(&self) -> &[Range<Anchor>];
342}
343
344#[derive(Clone, Debug, PartialEq)]
345pub enum SelectPhase {
346 Begin {
347 position: DisplayPoint,
348 add: bool,
349 click_count: usize,
350 },
351 BeginColumnar {
352 position: DisplayPoint,
353 reset: bool,
354 goal_column: u32,
355 },
356 Extend {
357 position: DisplayPoint,
358 click_count: usize,
359 },
360 Update {
361 position: DisplayPoint,
362 goal_column: u32,
363 scroll_delta: gpui::Point<f32>,
364 },
365 End,
366}
367
368#[derive(Clone, Debug)]
369pub enum SelectMode {
370 Character,
371 Word(Range<Anchor>),
372 Line(Range<Anchor>),
373 All,
374}
375
376#[derive(Copy, Clone, PartialEq, Eq, Debug)]
377pub enum EditorMode {
378 SingleLine { auto_width: bool },
379 AutoHeight { max_lines: usize },
380 Full,
381}
382
383#[derive(Copy, Clone, Debug)]
384pub enum SoftWrap {
385 /// Prefer not to wrap at all.
386 ///
387 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
388 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
389 GitDiff,
390 /// Prefer a single line generally, unless an overly long line is encountered.
391 None,
392 /// Soft wrap lines that exceed the editor width.
393 EditorWidth,
394 /// Soft wrap lines at the preferred line length.
395 Column(u32),
396 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
397 Bounded(u32),
398}
399
400#[derive(Clone)]
401pub struct EditorStyle {
402 pub background: Hsla,
403 pub local_player: PlayerColor,
404 pub text: TextStyle,
405 pub scrollbar_width: Pixels,
406 pub syntax: Arc<SyntaxTheme>,
407 pub status: StatusColors,
408 pub inlay_hints_style: HighlightStyle,
409 pub suggestions_style: HighlightStyle,
410 pub unnecessary_code_fade: f32,
411}
412
413impl Default for EditorStyle {
414 fn default() -> Self {
415 Self {
416 background: Hsla::default(),
417 local_player: PlayerColor::default(),
418 text: TextStyle::default(),
419 scrollbar_width: Pixels::default(),
420 syntax: Default::default(),
421 // HACK: Status colors don't have a real default.
422 // We should look into removing the status colors from the editor
423 // style and retrieve them directly from the theme.
424 status: StatusColors::dark(),
425 inlay_hints_style: HighlightStyle::default(),
426 suggestions_style: HighlightStyle::default(),
427 unnecessary_code_fade: Default::default(),
428 }
429 }
430}
431
432pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
433 let show_background = language_settings::language_settings(None, None, cx)
434 .inlay_hints
435 .show_background;
436
437 HighlightStyle {
438 color: Some(cx.theme().status().hint),
439 background_color: show_background.then(|| cx.theme().status().hint_background),
440 ..HighlightStyle::default()
441 }
442}
443
444type CompletionId = usize;
445
446#[derive(Clone, Debug)]
447struct CompletionState {
448 // render_inlay_ids represents the inlay hints that are inserted
449 // for rendering the inline completions. They may be discontinuous
450 // in the event that the completion provider returns some intersection
451 // with the existing content.
452 render_inlay_ids: Vec<InlayId>,
453 // text is the resulting rope that is inserted when the user accepts a completion.
454 text: Rope,
455 // position is the position of the cursor when the completion was triggered.
456 position: multi_buffer::Anchor,
457 // delete_range is the range of text that this completion state covers.
458 // if the completion is accepted, this range should be deleted.
459 delete_range: Option<Range<multi_buffer::Anchor>>,
460}
461
462#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
463struct EditorActionId(usize);
464
465impl EditorActionId {
466 pub fn post_inc(&mut self) -> Self {
467 let answer = self.0;
468
469 *self = Self(answer + 1);
470
471 Self(answer)
472 }
473}
474
475// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
476// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
477
478type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
479type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
480
481#[derive(Default)]
482struct ScrollbarMarkerState {
483 scrollbar_size: Size<Pixels>,
484 dirty: bool,
485 markers: Arc<[PaintQuad]>,
486 pending_refresh: Option<Task<Result<()>>>,
487}
488
489impl ScrollbarMarkerState {
490 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
491 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
492 }
493}
494
495#[derive(Clone, Debug)]
496struct RunnableTasks {
497 templates: Vec<(TaskSourceKind, TaskTemplate)>,
498 offset: MultiBufferOffset,
499 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
500 column: u32,
501 // Values of all named captures, including those starting with '_'
502 extra_variables: HashMap<String, String>,
503 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
504 context_range: Range<BufferOffset>,
505}
506
507impl RunnableTasks {
508 fn resolve<'a>(
509 &'a self,
510 cx: &'a task::TaskContext,
511 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
512 self.templates.iter().filter_map(|(kind, template)| {
513 template
514 .resolve_task(&kind.to_id_base(), cx)
515 .map(|task| (kind.clone(), task))
516 })
517 }
518}
519
520#[derive(Clone)]
521struct ResolvedTasks {
522 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
523 position: Anchor,
524}
525#[derive(Copy, Clone, Debug)]
526struct MultiBufferOffset(usize);
527#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
528struct BufferOffset(usize);
529
530// Addons allow storing per-editor state in other crates (e.g. Vim)
531pub trait Addon: 'static {
532 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
533
534 fn to_any(&self) -> &dyn std::any::Any;
535}
536
537/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
538///
539/// See the [module level documentation](self) for more information.
540pub struct Editor {
541 focus_handle: FocusHandle,
542 last_focused_descendant: Option<WeakFocusHandle>,
543 /// The text buffer being edited
544 buffer: Model<MultiBuffer>,
545 /// Map of how text in the buffer should be displayed.
546 /// Handles soft wraps, folds, fake inlay text insertions, etc.
547 pub display_map: Model<DisplayMap>,
548 pub selections: SelectionsCollection,
549 pub scroll_manager: ScrollManager,
550 /// When inline assist editors are linked, they all render cursors because
551 /// typing enters text into each of them, even the ones that aren't focused.
552 pub(crate) show_cursor_when_unfocused: bool,
553 columnar_selection_tail: Option<Anchor>,
554 add_selections_state: Option<AddSelectionsState>,
555 select_next_state: Option<SelectNextState>,
556 select_prev_state: Option<SelectNextState>,
557 selection_history: SelectionHistory,
558 autoclose_regions: Vec<AutocloseRegion>,
559 snippet_stack: InvalidationStack<SnippetState>,
560 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
561 ime_transaction: Option<TransactionId>,
562 active_diagnostics: Option<ActiveDiagnosticGroup>,
563 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
564
565 project: Option<Model<Project>>,
566 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
567 completion_provider: Option<Box<dyn CompletionProvider>>,
568 collaboration_hub: Option<Box<dyn CollaborationHub>>,
569 blink_manager: Model<BlinkManager>,
570 show_cursor_names: bool,
571 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
572 pub show_local_selections: bool,
573 mode: EditorMode,
574 show_breadcrumbs: bool,
575 show_gutter: bool,
576 show_line_numbers: Option<bool>,
577 use_relative_line_numbers: Option<bool>,
578 show_git_diff_gutter: Option<bool>,
579 show_code_actions: Option<bool>,
580 show_runnables: Option<bool>,
581 show_wrap_guides: Option<bool>,
582 show_indent_guides: Option<bool>,
583 placeholder_text: Option<Arc<str>>,
584 highlight_order: usize,
585 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
586 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
587 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
588 scrollbar_marker_state: ScrollbarMarkerState,
589 active_indent_guides_state: ActiveIndentGuidesState,
590 nav_history: Option<ItemNavHistory>,
591 context_menu: RwLock<Option<ContextMenu>>,
592 mouse_context_menu: Option<MouseContextMenu>,
593 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
594 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
595 signature_help_state: SignatureHelpState,
596 auto_signature_help: Option<bool>,
597 find_all_references_task_sources: Vec<Anchor>,
598 next_completion_id: CompletionId,
599 completion_documentation_pre_resolve_debounce: DebouncedDelay,
600 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
601 code_actions_task: Option<Task<Result<()>>>,
602 document_highlights_task: Option<Task<()>>,
603 linked_editing_range_task: Option<Task<Option<()>>>,
604 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
605 pending_rename: Option<RenameState>,
606 searchable: bool,
607 cursor_shape: CursorShape,
608 current_line_highlight: Option<CurrentLineHighlight>,
609 collapse_matches: bool,
610 autoindent_mode: Option<AutoindentMode>,
611 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
612 input_enabled: bool,
613 use_modal_editing: bool,
614 read_only: bool,
615 leader_peer_id: Option<PeerId>,
616 remote_id: Option<ViewId>,
617 hover_state: HoverState,
618 gutter_hovered: bool,
619 hovered_link_state: Option<HoveredLinkState>,
620 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
621 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
622 active_inline_completion: Option<CompletionState>,
623 // enable_inline_completions is a switch that Vim can use to disable
624 // inline completions based on its mode.
625 enable_inline_completions: bool,
626 show_inline_completions_override: Option<bool>,
627 inlay_hint_cache: InlayHintCache,
628 expanded_hunks: ExpandedHunks,
629 next_inlay_id: usize,
630 _subscriptions: Vec<Subscription>,
631 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
632 gutter_dimensions: GutterDimensions,
633 style: Option<EditorStyle>,
634 text_style_refinement: Option<TextStyleRefinement>,
635 next_editor_action_id: EditorActionId,
636 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
637 use_autoclose: bool,
638 use_auto_surround: bool,
639 auto_replace_emoji_shortcode: bool,
640 show_git_blame_gutter: bool,
641 show_git_blame_inline: bool,
642 show_git_blame_inline_delay_task: Option<Task<()>>,
643 git_blame_inline_enabled: bool,
644 serialize_dirty_buffers: bool,
645 show_selection_menu: Option<bool>,
646 blame: Option<Model<GitBlame>>,
647 blame_subscription: Option<Subscription>,
648 custom_context_menu: Option<
649 Box<
650 dyn 'static
651 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
652 >,
653 >,
654 last_bounds: Option<Bounds<Pixels>>,
655 expect_bounds_change: Option<Bounds<Pixels>>,
656 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
657 tasks_update_task: Option<Task<()>>,
658 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
659 breadcrumb_header: Option<String>,
660 focused_block: Option<FocusedBlock>,
661 next_scroll_position: NextScrollCursorCenterTopBottom,
662 addons: HashMap<TypeId, Box<dyn Addon>>,
663 _scroll_cursor_center_top_bottom_task: Task<()>,
664}
665
666#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
667enum NextScrollCursorCenterTopBottom {
668 #[default]
669 Center,
670 Top,
671 Bottom,
672}
673
674impl NextScrollCursorCenterTopBottom {
675 fn next(&self) -> Self {
676 match self {
677 Self::Center => Self::Top,
678 Self::Top => Self::Bottom,
679 Self::Bottom => Self::Center,
680 }
681 }
682}
683
684#[derive(Clone)]
685pub struct EditorSnapshot {
686 pub mode: EditorMode,
687 show_gutter: bool,
688 show_line_numbers: Option<bool>,
689 show_git_diff_gutter: Option<bool>,
690 show_code_actions: Option<bool>,
691 show_runnables: Option<bool>,
692 git_blame_gutter_max_author_length: Option<usize>,
693 pub display_snapshot: DisplaySnapshot,
694 pub placeholder_text: Option<Arc<str>>,
695 is_focused: bool,
696 scroll_anchor: ScrollAnchor,
697 ongoing_scroll: OngoingScroll,
698 current_line_highlight: CurrentLineHighlight,
699 gutter_hovered: bool,
700}
701
702const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
703
704#[derive(Default, Debug, Clone, Copy)]
705pub struct GutterDimensions {
706 pub left_padding: Pixels,
707 pub right_padding: Pixels,
708 pub width: Pixels,
709 pub margin: Pixels,
710 pub git_blame_entries_width: Option<Pixels>,
711}
712
713impl GutterDimensions {
714 /// The full width of the space taken up by the gutter.
715 pub fn full_width(&self) -> Pixels {
716 self.margin + self.width
717 }
718
719 /// The width of the space reserved for the fold indicators,
720 /// use alongside 'justify_end' and `gutter_width` to
721 /// right align content with the line numbers
722 pub fn fold_area_width(&self) -> Pixels {
723 self.margin + self.right_padding
724 }
725}
726
727#[derive(Debug)]
728pub struct RemoteSelection {
729 pub replica_id: ReplicaId,
730 pub selection: Selection<Anchor>,
731 pub cursor_shape: CursorShape,
732 pub peer_id: PeerId,
733 pub line_mode: bool,
734 pub participant_index: Option<ParticipantIndex>,
735 pub user_name: Option<SharedString>,
736}
737
738#[derive(Clone, Debug)]
739struct SelectionHistoryEntry {
740 selections: Arc<[Selection<Anchor>]>,
741 select_next_state: Option<SelectNextState>,
742 select_prev_state: Option<SelectNextState>,
743 add_selections_state: Option<AddSelectionsState>,
744}
745
746enum SelectionHistoryMode {
747 Normal,
748 Undoing,
749 Redoing,
750}
751
752#[derive(Clone, PartialEq, Eq, Hash)]
753struct HoveredCursor {
754 replica_id: u16,
755 selection_id: usize,
756}
757
758impl Default for SelectionHistoryMode {
759 fn default() -> Self {
760 Self::Normal
761 }
762}
763
764#[derive(Default)]
765struct SelectionHistory {
766 #[allow(clippy::type_complexity)]
767 selections_by_transaction:
768 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
769 mode: SelectionHistoryMode,
770 undo_stack: VecDeque<SelectionHistoryEntry>,
771 redo_stack: VecDeque<SelectionHistoryEntry>,
772}
773
774impl SelectionHistory {
775 fn insert_transaction(
776 &mut self,
777 transaction_id: TransactionId,
778 selections: Arc<[Selection<Anchor>]>,
779 ) {
780 self.selections_by_transaction
781 .insert(transaction_id, (selections, None));
782 }
783
784 #[allow(clippy::type_complexity)]
785 fn transaction(
786 &self,
787 transaction_id: TransactionId,
788 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
789 self.selections_by_transaction.get(&transaction_id)
790 }
791
792 #[allow(clippy::type_complexity)]
793 fn transaction_mut(
794 &mut self,
795 transaction_id: TransactionId,
796 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
797 self.selections_by_transaction.get_mut(&transaction_id)
798 }
799
800 fn push(&mut self, entry: SelectionHistoryEntry) {
801 if !entry.selections.is_empty() {
802 match self.mode {
803 SelectionHistoryMode::Normal => {
804 self.push_undo(entry);
805 self.redo_stack.clear();
806 }
807 SelectionHistoryMode::Undoing => self.push_redo(entry),
808 SelectionHistoryMode::Redoing => self.push_undo(entry),
809 }
810 }
811 }
812
813 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
814 if self
815 .undo_stack
816 .back()
817 .map_or(true, |e| e.selections != entry.selections)
818 {
819 self.undo_stack.push_back(entry);
820 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
821 self.undo_stack.pop_front();
822 }
823 }
824 }
825
826 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
827 if self
828 .redo_stack
829 .back()
830 .map_or(true, |e| e.selections != entry.selections)
831 {
832 self.redo_stack.push_back(entry);
833 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
834 self.redo_stack.pop_front();
835 }
836 }
837 }
838}
839
840struct RowHighlight {
841 index: usize,
842 range: Range<Anchor>,
843 color: Hsla,
844 should_autoscroll: bool,
845}
846
847#[derive(Clone, Debug)]
848struct AddSelectionsState {
849 above: bool,
850 stack: Vec<usize>,
851}
852
853#[derive(Clone)]
854struct SelectNextState {
855 query: AhoCorasick,
856 wordwise: bool,
857 done: bool,
858}
859
860impl std::fmt::Debug for SelectNextState {
861 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
862 f.debug_struct(std::any::type_name::<Self>())
863 .field("wordwise", &self.wordwise)
864 .field("done", &self.done)
865 .finish()
866 }
867}
868
869#[derive(Debug)]
870struct AutocloseRegion {
871 selection_id: usize,
872 range: Range<Anchor>,
873 pair: BracketPair,
874}
875
876#[derive(Debug)]
877struct SnippetState {
878 ranges: Vec<Vec<Range<Anchor>>>,
879 active_index: usize,
880}
881
882#[doc(hidden)]
883pub struct RenameState {
884 pub range: Range<Anchor>,
885 pub old_name: Arc<str>,
886 pub editor: View<Editor>,
887 block_id: CustomBlockId,
888}
889
890struct InvalidationStack<T>(Vec<T>);
891
892struct RegisteredInlineCompletionProvider {
893 provider: Arc<dyn InlineCompletionProviderHandle>,
894 _subscription: Subscription,
895}
896
897enum ContextMenu {
898 Completions(CompletionsMenu),
899 CodeActions(CodeActionsMenu),
900}
901
902impl ContextMenu {
903 fn select_first(
904 &mut self,
905 provider: Option<&dyn CompletionProvider>,
906 cx: &mut ViewContext<Editor>,
907 ) -> bool {
908 if self.visible() {
909 match self {
910 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
911 ContextMenu::CodeActions(menu) => menu.select_first(cx),
912 }
913 true
914 } else {
915 false
916 }
917 }
918
919 fn select_prev(
920 &mut self,
921 provider: Option<&dyn CompletionProvider>,
922 cx: &mut ViewContext<Editor>,
923 ) -> bool {
924 if self.visible() {
925 match self {
926 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
927 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
928 }
929 true
930 } else {
931 false
932 }
933 }
934
935 fn select_next(
936 &mut self,
937 provider: Option<&dyn CompletionProvider>,
938 cx: &mut ViewContext<Editor>,
939 ) -> bool {
940 if self.visible() {
941 match self {
942 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
943 ContextMenu::CodeActions(menu) => menu.select_next(cx),
944 }
945 true
946 } else {
947 false
948 }
949 }
950
951 fn select_last(
952 &mut self,
953 provider: Option<&dyn CompletionProvider>,
954 cx: &mut ViewContext<Editor>,
955 ) -> bool {
956 if self.visible() {
957 match self {
958 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
959 ContextMenu::CodeActions(menu) => menu.select_last(cx),
960 }
961 true
962 } else {
963 false
964 }
965 }
966
967 fn visible(&self) -> bool {
968 match self {
969 ContextMenu::Completions(menu) => menu.visible(),
970 ContextMenu::CodeActions(menu) => menu.visible(),
971 }
972 }
973
974 fn render(
975 &self,
976 cursor_position: DisplayPoint,
977 style: &EditorStyle,
978 max_height: Pixels,
979 workspace: Option<WeakView<Workspace>>,
980 cx: &mut ViewContext<Editor>,
981 ) -> (ContextMenuOrigin, AnyElement) {
982 match self {
983 ContextMenu::Completions(menu) => (
984 ContextMenuOrigin::EditorPoint(cursor_position),
985 menu.render(style, max_height, workspace, cx),
986 ),
987 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
988 }
989 }
990}
991
992enum ContextMenuOrigin {
993 EditorPoint(DisplayPoint),
994 GutterIndicator(DisplayRow),
995}
996
997#[derive(Clone)]
998struct CompletionsMenu {
999 id: CompletionId,
1000 sort_completions: bool,
1001 initial_position: Anchor,
1002 buffer: Model<Buffer>,
1003 completions: Arc<RwLock<Box<[Completion]>>>,
1004 match_candidates: Arc<[StringMatchCandidate]>,
1005 matches: Arc<[StringMatch]>,
1006 selected_item: usize,
1007 scroll_handle: UniformListScrollHandle,
1008 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
1009}
1010
1011impl CompletionsMenu {
1012 fn select_first(
1013 &mut self,
1014 provider: Option<&dyn CompletionProvider>,
1015 cx: &mut ViewContext<Editor>,
1016 ) {
1017 self.selected_item = 0;
1018 self.scroll_handle.scroll_to_item(self.selected_item);
1019 self.attempt_resolve_selected_completion_documentation(provider, cx);
1020 cx.notify();
1021 }
1022
1023 fn select_prev(
1024 &mut self,
1025 provider: Option<&dyn CompletionProvider>,
1026 cx: &mut ViewContext<Editor>,
1027 ) {
1028 if self.selected_item > 0 {
1029 self.selected_item -= 1;
1030 } else {
1031 self.selected_item = self.matches.len() - 1;
1032 }
1033 self.scroll_handle.scroll_to_item(self.selected_item);
1034 self.attempt_resolve_selected_completion_documentation(provider, cx);
1035 cx.notify();
1036 }
1037
1038 fn select_next(
1039 &mut self,
1040 provider: Option<&dyn CompletionProvider>,
1041 cx: &mut ViewContext<Editor>,
1042 ) {
1043 if self.selected_item + 1 < self.matches.len() {
1044 self.selected_item += 1;
1045 } else {
1046 self.selected_item = 0;
1047 }
1048 self.scroll_handle.scroll_to_item(self.selected_item);
1049 self.attempt_resolve_selected_completion_documentation(provider, cx);
1050 cx.notify();
1051 }
1052
1053 fn select_last(
1054 &mut self,
1055 provider: Option<&dyn CompletionProvider>,
1056 cx: &mut ViewContext<Editor>,
1057 ) {
1058 self.selected_item = self.matches.len() - 1;
1059 self.scroll_handle.scroll_to_item(self.selected_item);
1060 self.attempt_resolve_selected_completion_documentation(provider, cx);
1061 cx.notify();
1062 }
1063
1064 fn pre_resolve_completion_documentation(
1065 buffer: Model<Buffer>,
1066 completions: Arc<RwLock<Box<[Completion]>>>,
1067 matches: Arc<[StringMatch]>,
1068 editor: &Editor,
1069 cx: &mut ViewContext<Editor>,
1070 ) -> Task<()> {
1071 let settings = EditorSettings::get_global(cx);
1072 if !settings.show_completion_documentation {
1073 return Task::ready(());
1074 }
1075
1076 let Some(provider) = editor.completion_provider.as_ref() else {
1077 return Task::ready(());
1078 };
1079
1080 let resolve_task = provider.resolve_completions(
1081 buffer,
1082 matches.iter().map(|m| m.candidate_id).collect(),
1083 completions.clone(),
1084 cx,
1085 );
1086
1087 cx.spawn(move |this, mut cx| async move {
1088 if let Some(true) = resolve_task.await.log_err() {
1089 this.update(&mut cx, |_, cx| cx.notify()).ok();
1090 }
1091 })
1092 }
1093
1094 fn attempt_resolve_selected_completion_documentation(
1095 &mut self,
1096 provider: Option<&dyn CompletionProvider>,
1097 cx: &mut ViewContext<Editor>,
1098 ) {
1099 let settings = EditorSettings::get_global(cx);
1100 if !settings.show_completion_documentation {
1101 return;
1102 }
1103
1104 let completion_index = self.matches[self.selected_item].candidate_id;
1105 let Some(provider) = provider else {
1106 return;
1107 };
1108
1109 let resolve_task = provider.resolve_completions(
1110 self.buffer.clone(),
1111 vec![completion_index],
1112 self.completions.clone(),
1113 cx,
1114 );
1115
1116 let delay_ms =
1117 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1118 let delay = Duration::from_millis(delay_ms);
1119
1120 self.selected_completion_documentation_resolve_debounce
1121 .lock()
1122 .fire_new(delay, cx, |_, cx| {
1123 cx.spawn(move |this, mut cx| async move {
1124 if let Some(true) = resolve_task.await.log_err() {
1125 this.update(&mut cx, |_, cx| cx.notify()).ok();
1126 }
1127 })
1128 });
1129 }
1130
1131 fn visible(&self) -> bool {
1132 !self.matches.is_empty()
1133 }
1134
1135 fn render(
1136 &self,
1137 style: &EditorStyle,
1138 max_height: Pixels,
1139 workspace: Option<WeakView<Workspace>>,
1140 cx: &mut ViewContext<Editor>,
1141 ) -> AnyElement {
1142 let settings = EditorSettings::get_global(cx);
1143 let show_completion_documentation = settings.show_completion_documentation;
1144
1145 let widest_completion_ix = self
1146 .matches
1147 .iter()
1148 .enumerate()
1149 .max_by_key(|(_, mat)| {
1150 let completions = self.completions.read();
1151 let completion = &completions[mat.candidate_id];
1152 let documentation = &completion.documentation;
1153
1154 let mut len = completion.label.text.chars().count();
1155 if let Some(Documentation::SingleLine(text)) = documentation {
1156 if show_completion_documentation {
1157 len += text.chars().count();
1158 }
1159 }
1160
1161 len
1162 })
1163 .map(|(ix, _)| ix);
1164
1165 let completions = self.completions.clone();
1166 let matches = self.matches.clone();
1167 let selected_item = self.selected_item;
1168 let style = style.clone();
1169
1170 let multiline_docs = if show_completion_documentation {
1171 let mat = &self.matches[selected_item];
1172 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1173 Some(Documentation::MultiLinePlainText(text)) => {
1174 Some(div().child(SharedString::from(text.clone())))
1175 }
1176 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1177 Some(div().child(render_parsed_markdown(
1178 "completions_markdown",
1179 parsed,
1180 &style,
1181 workspace,
1182 cx,
1183 )))
1184 }
1185 _ => None,
1186 };
1187 multiline_docs.map(|div| {
1188 div.id("multiline_docs")
1189 .max_h(max_height)
1190 .flex_1()
1191 .px_1p5()
1192 .py_1()
1193 .min_w(px(260.))
1194 .max_w(px(640.))
1195 .w(px(500.))
1196 .overflow_y_scroll()
1197 .occlude()
1198 })
1199 } else {
1200 None
1201 };
1202
1203 let list = uniform_list(
1204 cx.view().clone(),
1205 "completions",
1206 matches.len(),
1207 move |_editor, range, cx| {
1208 let start_ix = range.start;
1209 let completions_guard = completions.read();
1210
1211 matches[range]
1212 .iter()
1213 .enumerate()
1214 .map(|(ix, mat)| {
1215 let item_ix = start_ix + ix;
1216 let candidate_id = mat.candidate_id;
1217 let completion = &completions_guard[candidate_id];
1218
1219 let documentation = if show_completion_documentation {
1220 &completion.documentation
1221 } else {
1222 &None
1223 };
1224
1225 let highlights = gpui::combine_highlights(
1226 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1227 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1228 |(range, mut highlight)| {
1229 // Ignore font weight for syntax highlighting, as we'll use it
1230 // for fuzzy matches.
1231 highlight.font_weight = None;
1232
1233 if completion.lsp_completion.deprecated.unwrap_or(false) {
1234 highlight.strikethrough = Some(StrikethroughStyle {
1235 thickness: 1.0.into(),
1236 ..Default::default()
1237 });
1238 highlight.color = Some(cx.theme().colors().text_muted);
1239 }
1240
1241 (range, highlight)
1242 },
1243 ),
1244 );
1245 let completion_label = StyledText::new(completion.label.text.clone())
1246 .with_highlights(&style.text, highlights);
1247 let documentation_label =
1248 if let Some(Documentation::SingleLine(text)) = documentation {
1249 if text.trim().is_empty() {
1250 None
1251 } else {
1252 Some(
1253 Label::new(text.clone())
1254 .ml_4()
1255 .size(LabelSize::Small)
1256 .color(Color::Muted),
1257 )
1258 }
1259 } else {
1260 None
1261 };
1262
1263 let color_swatch = completion
1264 .color()
1265 .map(|color| div().size_4().bg(color).rounded_sm());
1266
1267 div().min_w(px(220.)).max_w(px(540.)).child(
1268 ListItem::new(mat.candidate_id)
1269 .inset(true)
1270 .selected(item_ix == selected_item)
1271 .on_click(cx.listener(move |editor, _event, cx| {
1272 cx.stop_propagation();
1273 if let Some(task) = editor.confirm_completion(
1274 &ConfirmCompletion {
1275 item_ix: Some(item_ix),
1276 },
1277 cx,
1278 ) {
1279 task.detach_and_log_err(cx)
1280 }
1281 }))
1282 .start_slot::<Div>(color_swatch)
1283 .child(h_flex().overflow_hidden().child(completion_label))
1284 .end_slot::<Label>(documentation_label),
1285 )
1286 })
1287 .collect()
1288 },
1289 )
1290 .occlude()
1291 .max_h(max_height)
1292 .track_scroll(self.scroll_handle.clone())
1293 .with_width_from_item(widest_completion_ix)
1294 .with_sizing_behavior(ListSizingBehavior::Infer);
1295
1296 Popover::new()
1297 .child(list)
1298 .when_some(multiline_docs, |popover, multiline_docs| {
1299 popover.aside(multiline_docs)
1300 })
1301 .into_any_element()
1302 }
1303
1304 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1305 let mut matches = if let Some(query) = query {
1306 fuzzy::match_strings(
1307 &self.match_candidates,
1308 query,
1309 query.chars().any(|c| c.is_uppercase()),
1310 100,
1311 &Default::default(),
1312 executor,
1313 )
1314 .await
1315 } else {
1316 self.match_candidates
1317 .iter()
1318 .enumerate()
1319 .map(|(candidate_id, candidate)| StringMatch {
1320 candidate_id,
1321 score: Default::default(),
1322 positions: Default::default(),
1323 string: candidate.string.clone(),
1324 })
1325 .collect()
1326 };
1327
1328 // Remove all candidates where the query's start does not match the start of any word in the candidate
1329 if let Some(query) = query {
1330 if let Some(query_start) = query.chars().next() {
1331 matches.retain(|string_match| {
1332 split_words(&string_match.string).any(|word| {
1333 // Check that the first codepoint of the word as lowercase matches the first
1334 // codepoint of the query as lowercase
1335 word.chars()
1336 .flat_map(|codepoint| codepoint.to_lowercase())
1337 .zip(query_start.to_lowercase())
1338 .all(|(word_cp, query_cp)| word_cp == query_cp)
1339 })
1340 });
1341 }
1342 }
1343
1344 let completions = self.completions.read();
1345 if self.sort_completions {
1346 matches.sort_unstable_by_key(|mat| {
1347 // We do want to strike a balance here between what the language server tells us
1348 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1349 // `Creat` and there is a local variable called `CreateComponent`).
1350 // So what we do is: we bucket all matches into two buckets
1351 // - Strong matches
1352 // - Weak matches
1353 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1354 // and the Weak matches are the rest.
1355 //
1356 // For the strong matches, we sort by the language-servers score first and for the weak
1357 // matches, we prefer our fuzzy finder first.
1358 //
1359 // The thinking behind that: it's useless to take the sort_text the language-server gives
1360 // us into account when it's obviously a bad match.
1361
1362 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1363 enum MatchScore<'a> {
1364 Strong {
1365 sort_text: Option<&'a str>,
1366 score: Reverse<OrderedFloat<f64>>,
1367 sort_key: (usize, &'a str),
1368 },
1369 Weak {
1370 score: Reverse<OrderedFloat<f64>>,
1371 sort_text: Option<&'a str>,
1372 sort_key: (usize, &'a str),
1373 },
1374 }
1375
1376 let completion = &completions[mat.candidate_id];
1377 let sort_key = completion.sort_key();
1378 let sort_text = completion.lsp_completion.sort_text.as_deref();
1379 let score = Reverse(OrderedFloat(mat.score));
1380
1381 if mat.score >= 0.2 {
1382 MatchScore::Strong {
1383 sort_text,
1384 score,
1385 sort_key,
1386 }
1387 } else {
1388 MatchScore::Weak {
1389 score,
1390 sort_text,
1391 sort_key,
1392 }
1393 }
1394 });
1395 }
1396
1397 for mat in &mut matches {
1398 let completion = &completions[mat.candidate_id];
1399 mat.string.clone_from(&completion.label.text);
1400 for position in &mut mat.positions {
1401 *position += completion.label.filter_range.start;
1402 }
1403 }
1404 drop(completions);
1405
1406 self.matches = matches.into();
1407 self.selected_item = 0;
1408 }
1409}
1410
1411struct AvailableCodeAction {
1412 excerpt_id: ExcerptId,
1413 action: CodeAction,
1414 provider: Arc<dyn CodeActionProvider>,
1415}
1416
1417#[derive(Clone)]
1418struct CodeActionContents {
1419 tasks: Option<Arc<ResolvedTasks>>,
1420 actions: Option<Arc<[AvailableCodeAction]>>,
1421}
1422
1423impl CodeActionContents {
1424 fn len(&self) -> usize {
1425 match (&self.tasks, &self.actions) {
1426 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1427 (Some(tasks), None) => tasks.templates.len(),
1428 (None, Some(actions)) => actions.len(),
1429 (None, None) => 0,
1430 }
1431 }
1432
1433 fn is_empty(&self) -> bool {
1434 match (&self.tasks, &self.actions) {
1435 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1436 (Some(tasks), None) => tasks.templates.is_empty(),
1437 (None, Some(actions)) => actions.is_empty(),
1438 (None, None) => true,
1439 }
1440 }
1441
1442 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1443 self.tasks
1444 .iter()
1445 .flat_map(|tasks| {
1446 tasks
1447 .templates
1448 .iter()
1449 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1450 })
1451 .chain(self.actions.iter().flat_map(|actions| {
1452 actions.iter().map(|available| CodeActionsItem::CodeAction {
1453 excerpt_id: available.excerpt_id,
1454 action: available.action.clone(),
1455 provider: available.provider.clone(),
1456 })
1457 }))
1458 }
1459 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1460 match (&self.tasks, &self.actions) {
1461 (Some(tasks), Some(actions)) => {
1462 if index < tasks.templates.len() {
1463 tasks
1464 .templates
1465 .get(index)
1466 .cloned()
1467 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1468 } else {
1469 actions.get(index - tasks.templates.len()).map(|available| {
1470 CodeActionsItem::CodeAction {
1471 excerpt_id: available.excerpt_id,
1472 action: available.action.clone(),
1473 provider: available.provider.clone(),
1474 }
1475 })
1476 }
1477 }
1478 (Some(tasks), None) => tasks
1479 .templates
1480 .get(index)
1481 .cloned()
1482 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1483 (None, Some(actions)) => {
1484 actions
1485 .get(index)
1486 .map(|available| CodeActionsItem::CodeAction {
1487 excerpt_id: available.excerpt_id,
1488 action: available.action.clone(),
1489 provider: available.provider.clone(),
1490 })
1491 }
1492 (None, None) => None,
1493 }
1494 }
1495}
1496
1497#[allow(clippy::large_enum_variant)]
1498#[derive(Clone)]
1499enum CodeActionsItem {
1500 Task(TaskSourceKind, ResolvedTask),
1501 CodeAction {
1502 excerpt_id: ExcerptId,
1503 action: CodeAction,
1504 provider: Arc<dyn CodeActionProvider>,
1505 },
1506}
1507
1508impl CodeActionsItem {
1509 fn as_task(&self) -> Option<&ResolvedTask> {
1510 let Self::Task(_, task) = self else {
1511 return None;
1512 };
1513 Some(task)
1514 }
1515 fn as_code_action(&self) -> Option<&CodeAction> {
1516 let Self::CodeAction { action, .. } = self else {
1517 return None;
1518 };
1519 Some(action)
1520 }
1521 fn label(&self) -> String {
1522 match self {
1523 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1524 Self::Task(_, task) => task.resolved_label.clone(),
1525 }
1526 }
1527}
1528
1529struct CodeActionsMenu {
1530 actions: CodeActionContents,
1531 buffer: Model<Buffer>,
1532 selected_item: usize,
1533 scroll_handle: UniformListScrollHandle,
1534 deployed_from_indicator: Option<DisplayRow>,
1535}
1536
1537impl CodeActionsMenu {
1538 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1539 self.selected_item = 0;
1540 self.scroll_handle.scroll_to_item(self.selected_item);
1541 cx.notify()
1542 }
1543
1544 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1545 if self.selected_item > 0 {
1546 self.selected_item -= 1;
1547 } else {
1548 self.selected_item = self.actions.len() - 1;
1549 }
1550 self.scroll_handle.scroll_to_item(self.selected_item);
1551 cx.notify();
1552 }
1553
1554 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1555 if self.selected_item + 1 < self.actions.len() {
1556 self.selected_item += 1;
1557 } else {
1558 self.selected_item = 0;
1559 }
1560 self.scroll_handle.scroll_to_item(self.selected_item);
1561 cx.notify();
1562 }
1563
1564 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1565 self.selected_item = self.actions.len() - 1;
1566 self.scroll_handle.scroll_to_item(self.selected_item);
1567 cx.notify()
1568 }
1569
1570 fn visible(&self) -> bool {
1571 !self.actions.is_empty()
1572 }
1573
1574 fn render(
1575 &self,
1576 cursor_position: DisplayPoint,
1577 _style: &EditorStyle,
1578 max_height: Pixels,
1579 cx: &mut ViewContext<Editor>,
1580 ) -> (ContextMenuOrigin, AnyElement) {
1581 let actions = self.actions.clone();
1582 let selected_item = self.selected_item;
1583 let element = uniform_list(
1584 cx.view().clone(),
1585 "code_actions_menu",
1586 self.actions.len(),
1587 move |_this, range, cx| {
1588 actions
1589 .iter()
1590 .skip(range.start)
1591 .take(range.end - range.start)
1592 .enumerate()
1593 .map(|(ix, action)| {
1594 let item_ix = range.start + ix;
1595 let selected = selected_item == item_ix;
1596 let colors = cx.theme().colors();
1597 div()
1598 .px_1()
1599 .rounded_md()
1600 .text_color(colors.text)
1601 .when(selected, |style| {
1602 style
1603 .bg(colors.element_active)
1604 .text_color(colors.text_accent)
1605 })
1606 .hover(|style| {
1607 style
1608 .bg(colors.element_hover)
1609 .text_color(colors.text_accent)
1610 })
1611 .whitespace_nowrap()
1612 .when_some(action.as_code_action(), |this, action| {
1613 this.on_mouse_down(
1614 MouseButton::Left,
1615 cx.listener(move |editor, _, cx| {
1616 cx.stop_propagation();
1617 if let Some(task) = editor.confirm_code_action(
1618 &ConfirmCodeAction {
1619 item_ix: Some(item_ix),
1620 },
1621 cx,
1622 ) {
1623 task.detach_and_log_err(cx)
1624 }
1625 }),
1626 )
1627 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1628 .child(SharedString::from(action.lsp_action.title.clone()))
1629 })
1630 .when_some(action.as_task(), |this, task| {
1631 this.on_mouse_down(
1632 MouseButton::Left,
1633 cx.listener(move |editor, _, cx| {
1634 cx.stop_propagation();
1635 if let Some(task) = editor.confirm_code_action(
1636 &ConfirmCodeAction {
1637 item_ix: Some(item_ix),
1638 },
1639 cx,
1640 ) {
1641 task.detach_and_log_err(cx)
1642 }
1643 }),
1644 )
1645 .child(SharedString::from(task.resolved_label.clone()))
1646 })
1647 })
1648 .collect()
1649 },
1650 )
1651 .elevation_1(cx)
1652 .p_1()
1653 .max_h(max_height)
1654 .occlude()
1655 .track_scroll(self.scroll_handle.clone())
1656 .with_width_from_item(
1657 self.actions
1658 .iter()
1659 .enumerate()
1660 .max_by_key(|(_, action)| match action {
1661 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1662 CodeActionsItem::CodeAction { action, .. } => {
1663 action.lsp_action.title.chars().count()
1664 }
1665 })
1666 .map(|(ix, _)| ix),
1667 )
1668 .with_sizing_behavior(ListSizingBehavior::Infer)
1669 .into_any_element();
1670
1671 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1672 ContextMenuOrigin::GutterIndicator(row)
1673 } else {
1674 ContextMenuOrigin::EditorPoint(cursor_position)
1675 };
1676
1677 (cursor_position, element)
1678 }
1679}
1680
1681#[derive(Debug)]
1682struct ActiveDiagnosticGroup {
1683 primary_range: Range<Anchor>,
1684 primary_message: String,
1685 group_id: usize,
1686 blocks: HashMap<CustomBlockId, Diagnostic>,
1687 is_valid: bool,
1688}
1689
1690#[derive(Serialize, Deserialize, Clone, Debug)]
1691pub struct ClipboardSelection {
1692 pub len: usize,
1693 pub is_entire_line: bool,
1694 pub first_line_indent: u32,
1695}
1696
1697#[derive(Debug)]
1698pub(crate) struct NavigationData {
1699 cursor_anchor: Anchor,
1700 cursor_position: Point,
1701 scroll_anchor: ScrollAnchor,
1702 scroll_top_row: u32,
1703}
1704
1705#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1706pub enum GotoDefinitionKind {
1707 Symbol,
1708 Declaration,
1709 Type,
1710 Implementation,
1711}
1712
1713#[derive(Debug, Clone)]
1714enum InlayHintRefreshReason {
1715 Toggle(bool),
1716 SettingsChange(InlayHintSettings),
1717 NewLinesShown,
1718 BufferEdited(HashSet<Arc<Language>>),
1719 RefreshRequested,
1720 ExcerptsRemoved(Vec<ExcerptId>),
1721}
1722
1723impl InlayHintRefreshReason {
1724 fn description(&self) -> &'static str {
1725 match self {
1726 Self::Toggle(_) => "toggle",
1727 Self::SettingsChange(_) => "settings change",
1728 Self::NewLinesShown => "new lines shown",
1729 Self::BufferEdited(_) => "buffer edited",
1730 Self::RefreshRequested => "refresh requested",
1731 Self::ExcerptsRemoved(_) => "excerpts removed",
1732 }
1733 }
1734}
1735
1736pub(crate) struct FocusedBlock {
1737 id: BlockId,
1738 focus_handle: WeakFocusHandle,
1739}
1740
1741impl Editor {
1742 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1743 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1744 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1745 Self::new(
1746 EditorMode::SingleLine { auto_width: false },
1747 buffer,
1748 None,
1749 false,
1750 cx,
1751 )
1752 }
1753
1754 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1755 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1756 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1757 Self::new(EditorMode::Full, buffer, None, false, cx)
1758 }
1759
1760 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1761 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1762 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1763 Self::new(
1764 EditorMode::SingleLine { auto_width: true },
1765 buffer,
1766 None,
1767 false,
1768 cx,
1769 )
1770 }
1771
1772 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1773 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1774 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1775 Self::new(
1776 EditorMode::AutoHeight { max_lines },
1777 buffer,
1778 None,
1779 false,
1780 cx,
1781 )
1782 }
1783
1784 pub fn for_buffer(
1785 buffer: Model<Buffer>,
1786 project: Option<Model<Project>>,
1787 cx: &mut ViewContext<Self>,
1788 ) -> Self {
1789 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1790 Self::new(EditorMode::Full, buffer, project, false, cx)
1791 }
1792
1793 pub fn for_multibuffer(
1794 buffer: Model<MultiBuffer>,
1795 project: Option<Model<Project>>,
1796 show_excerpt_controls: bool,
1797 cx: &mut ViewContext<Self>,
1798 ) -> Self {
1799 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1800 }
1801
1802 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1803 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1804 let mut clone = Self::new(
1805 self.mode,
1806 self.buffer.clone(),
1807 self.project.clone(),
1808 show_excerpt_controls,
1809 cx,
1810 );
1811 self.display_map.update(cx, |display_map, cx| {
1812 let snapshot = display_map.snapshot(cx);
1813 clone.display_map.update(cx, |display_map, cx| {
1814 display_map.set_state(&snapshot, cx);
1815 });
1816 });
1817 clone.selections.clone_state(&self.selections);
1818 clone.scroll_manager.clone_state(&self.scroll_manager);
1819 clone.searchable = self.searchable;
1820 clone
1821 }
1822
1823 pub fn new(
1824 mode: EditorMode,
1825 buffer: Model<MultiBuffer>,
1826 project: Option<Model<Project>>,
1827 show_excerpt_controls: bool,
1828 cx: &mut ViewContext<Self>,
1829 ) -> Self {
1830 let style = cx.text_style();
1831 let font_size = style.font_size.to_pixels(cx.rem_size());
1832 let editor = cx.view().downgrade();
1833 let fold_placeholder = FoldPlaceholder {
1834 constrain_width: true,
1835 render: Arc::new(move |fold_id, fold_range, cx| {
1836 let editor = editor.clone();
1837 div()
1838 .id(fold_id)
1839 .bg(cx.theme().colors().ghost_element_background)
1840 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1841 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1842 .rounded_sm()
1843 .size_full()
1844 .cursor_pointer()
1845 .child("⋯")
1846 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1847 .on_click(move |_, cx| {
1848 editor
1849 .update(cx, |editor, cx| {
1850 editor.unfold_ranges(
1851 [fold_range.start..fold_range.end],
1852 true,
1853 false,
1854 cx,
1855 );
1856 cx.stop_propagation();
1857 })
1858 .ok();
1859 })
1860 .into_any()
1861 }),
1862 merge_adjacent: true,
1863 };
1864 let display_map = cx.new_model(|cx| {
1865 DisplayMap::new(
1866 buffer.clone(),
1867 style.font(),
1868 font_size,
1869 None,
1870 show_excerpt_controls,
1871 FILE_HEADER_HEIGHT,
1872 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1873 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1874 fold_placeholder,
1875 cx,
1876 )
1877 });
1878
1879 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1880
1881 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1882
1883 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1884 .then(|| language_settings::SoftWrap::None);
1885
1886 let mut project_subscriptions = Vec::new();
1887 if mode == EditorMode::Full {
1888 if let Some(project) = project.as_ref() {
1889 if buffer.read(cx).is_singleton() {
1890 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1891 cx.emit(EditorEvent::TitleChanged);
1892 }));
1893 }
1894 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1895 if let project::Event::RefreshInlayHints = event {
1896 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1897 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1898 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1899 let focus_handle = editor.focus_handle(cx);
1900 if focus_handle.is_focused(cx) {
1901 let snapshot = buffer.read(cx).snapshot();
1902 for (range, snippet) in snippet_edits {
1903 let editor_range =
1904 language::range_from_lsp(*range).to_offset(&snapshot);
1905 editor
1906 .insert_snippet(&[editor_range], snippet.clone(), cx)
1907 .ok();
1908 }
1909 }
1910 }
1911 }
1912 }));
1913 if let Some(task_inventory) = project
1914 .read(cx)
1915 .task_store()
1916 .read(cx)
1917 .task_inventory()
1918 .cloned()
1919 {
1920 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1921 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1922 }));
1923 }
1924 }
1925 }
1926
1927 let inlay_hint_settings = inlay_hint_settings(
1928 selections.newest_anchor().head(),
1929 &buffer.read(cx).snapshot(cx),
1930 cx,
1931 );
1932 let focus_handle = cx.focus_handle();
1933 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1934 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1935 .detach();
1936 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1937 .detach();
1938 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1939
1940 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1941 Some(false)
1942 } else {
1943 None
1944 };
1945
1946 let mut code_action_providers = Vec::new();
1947 if let Some(project) = project.clone() {
1948 code_action_providers.push(Arc::new(project) as Arc<_>);
1949 }
1950
1951 let mut this = Self {
1952 focus_handle,
1953 show_cursor_when_unfocused: false,
1954 last_focused_descendant: None,
1955 buffer: buffer.clone(),
1956 display_map: display_map.clone(),
1957 selections,
1958 scroll_manager: ScrollManager::new(cx),
1959 columnar_selection_tail: None,
1960 add_selections_state: None,
1961 select_next_state: None,
1962 select_prev_state: None,
1963 selection_history: Default::default(),
1964 autoclose_regions: Default::default(),
1965 snippet_stack: Default::default(),
1966 select_larger_syntax_node_stack: Vec::new(),
1967 ime_transaction: Default::default(),
1968 active_diagnostics: None,
1969 soft_wrap_mode_override,
1970 completion_provider: project.clone().map(|project| Box::new(project) as _),
1971 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1972 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1973 project,
1974 blink_manager: blink_manager.clone(),
1975 show_local_selections: true,
1976 mode,
1977 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1978 show_gutter: mode == EditorMode::Full,
1979 show_line_numbers: None,
1980 use_relative_line_numbers: None,
1981 show_git_diff_gutter: None,
1982 show_code_actions: None,
1983 show_runnables: None,
1984 show_wrap_guides: None,
1985 show_indent_guides,
1986 placeholder_text: None,
1987 highlight_order: 0,
1988 highlighted_rows: HashMap::default(),
1989 background_highlights: Default::default(),
1990 gutter_highlights: TreeMap::default(),
1991 scrollbar_marker_state: ScrollbarMarkerState::default(),
1992 active_indent_guides_state: ActiveIndentGuidesState::default(),
1993 nav_history: None,
1994 context_menu: RwLock::new(None),
1995 mouse_context_menu: None,
1996 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1997 completion_tasks: Default::default(),
1998 signature_help_state: SignatureHelpState::default(),
1999 auto_signature_help: None,
2000 find_all_references_task_sources: Vec::new(),
2001 next_completion_id: 0,
2002 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
2003 next_inlay_id: 0,
2004 code_action_providers,
2005 available_code_actions: Default::default(),
2006 code_actions_task: Default::default(),
2007 document_highlights_task: Default::default(),
2008 linked_editing_range_task: Default::default(),
2009 pending_rename: Default::default(),
2010 searchable: true,
2011 cursor_shape: EditorSettings::get_global(cx)
2012 .cursor_shape
2013 .unwrap_or_default(),
2014 current_line_highlight: None,
2015 autoindent_mode: Some(AutoindentMode::EachLine),
2016 collapse_matches: false,
2017 workspace: None,
2018 input_enabled: true,
2019 use_modal_editing: mode == EditorMode::Full,
2020 read_only: false,
2021 use_autoclose: true,
2022 use_auto_surround: true,
2023 auto_replace_emoji_shortcode: false,
2024 leader_peer_id: None,
2025 remote_id: None,
2026 hover_state: Default::default(),
2027 hovered_link_state: Default::default(),
2028 inline_completion_provider: None,
2029 active_inline_completion: None,
2030 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2031 expanded_hunks: ExpandedHunks::default(),
2032 gutter_hovered: false,
2033 pixel_position_of_newest_cursor: None,
2034 last_bounds: None,
2035 expect_bounds_change: None,
2036 gutter_dimensions: GutterDimensions::default(),
2037 style: None,
2038 show_cursor_names: false,
2039 hovered_cursors: Default::default(),
2040 next_editor_action_id: EditorActionId::default(),
2041 editor_actions: Rc::default(),
2042 show_inline_completions_override: None,
2043 enable_inline_completions: true,
2044 custom_context_menu: None,
2045 show_git_blame_gutter: false,
2046 show_git_blame_inline: false,
2047 show_selection_menu: None,
2048 show_git_blame_inline_delay_task: None,
2049 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2050 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2051 .session
2052 .restore_unsaved_buffers,
2053 blame: None,
2054 blame_subscription: None,
2055 tasks: Default::default(),
2056 _subscriptions: vec![
2057 cx.observe(&buffer, Self::on_buffer_changed),
2058 cx.subscribe(&buffer, Self::on_buffer_event),
2059 cx.observe(&display_map, Self::on_display_map_changed),
2060 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2061 cx.observe_global::<SettingsStore>(Self::settings_changed),
2062 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2063 cx.observe_window_activation(|editor, cx| {
2064 let active = cx.is_window_active();
2065 editor.blink_manager.update(cx, |blink_manager, cx| {
2066 if active {
2067 blink_manager.enable(cx);
2068 } else {
2069 blink_manager.disable(cx);
2070 }
2071 });
2072 }),
2073 ],
2074 tasks_update_task: None,
2075 linked_edit_ranges: Default::default(),
2076 previous_search_ranges: None,
2077 breadcrumb_header: None,
2078 focused_block: None,
2079 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2080 addons: HashMap::default(),
2081 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2082 text_style_refinement: None,
2083 };
2084 this.tasks_update_task = Some(this.refresh_runnables(cx));
2085 this._subscriptions.extend(project_subscriptions);
2086
2087 this.end_selection(cx);
2088 this.scroll_manager.show_scrollbar(cx);
2089
2090 if mode == EditorMode::Full {
2091 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2092 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2093
2094 if this.git_blame_inline_enabled {
2095 this.git_blame_inline_enabled = true;
2096 this.start_git_blame_inline(false, cx);
2097 }
2098 }
2099
2100 this.report_editor_event("open", None, cx);
2101 this
2102 }
2103
2104 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2105 self.mouse_context_menu
2106 .as_ref()
2107 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2108 }
2109
2110 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2111 let mut key_context = KeyContext::new_with_defaults();
2112 key_context.add("Editor");
2113 let mode = match self.mode {
2114 EditorMode::SingleLine { .. } => "single_line",
2115 EditorMode::AutoHeight { .. } => "auto_height",
2116 EditorMode::Full => "full",
2117 };
2118
2119 if EditorSettings::jupyter_enabled(cx) {
2120 key_context.add("jupyter");
2121 }
2122
2123 key_context.set("mode", mode);
2124 if self.pending_rename.is_some() {
2125 key_context.add("renaming");
2126 }
2127 if self.context_menu_visible() {
2128 match self.context_menu.read().as_ref() {
2129 Some(ContextMenu::Completions(_)) => {
2130 key_context.add("menu");
2131 key_context.add("showing_completions")
2132 }
2133 Some(ContextMenu::CodeActions(_)) => {
2134 key_context.add("menu");
2135 key_context.add("showing_code_actions")
2136 }
2137 None => {}
2138 }
2139 }
2140
2141 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2142 if !self.focus_handle(cx).contains_focused(cx)
2143 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2144 {
2145 for addon in self.addons.values() {
2146 addon.extend_key_context(&mut key_context, cx)
2147 }
2148 }
2149
2150 if let Some(extension) = self
2151 .buffer
2152 .read(cx)
2153 .as_singleton()
2154 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2155 {
2156 key_context.set("extension", extension.to_string());
2157 }
2158
2159 if self.has_active_inline_completion(cx) {
2160 key_context.add("copilot_suggestion");
2161 key_context.add("inline_completion");
2162 }
2163
2164 key_context
2165 }
2166
2167 pub fn new_file(
2168 workspace: &mut Workspace,
2169 _: &workspace::NewFile,
2170 cx: &mut ViewContext<Workspace>,
2171 ) {
2172 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2173 "Failed to create buffer",
2174 cx,
2175 |e, _| match e.error_code() {
2176 ErrorCode::RemoteUpgradeRequired => Some(format!(
2177 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2178 e.error_tag("required").unwrap_or("the latest version")
2179 )),
2180 _ => None,
2181 },
2182 );
2183 }
2184
2185 pub fn new_in_workspace(
2186 workspace: &mut Workspace,
2187 cx: &mut ViewContext<Workspace>,
2188 ) -> Task<Result<View<Editor>>> {
2189 let project = workspace.project().clone();
2190 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2191
2192 cx.spawn(|workspace, mut cx| async move {
2193 let buffer = create.await?;
2194 workspace.update(&mut cx, |workspace, cx| {
2195 let editor =
2196 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2197 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2198 editor
2199 })
2200 })
2201 }
2202
2203 fn new_file_vertical(
2204 workspace: &mut Workspace,
2205 _: &workspace::NewFileSplitVertical,
2206 cx: &mut ViewContext<Workspace>,
2207 ) {
2208 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2209 }
2210
2211 fn new_file_horizontal(
2212 workspace: &mut Workspace,
2213 _: &workspace::NewFileSplitHorizontal,
2214 cx: &mut ViewContext<Workspace>,
2215 ) {
2216 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2217 }
2218
2219 fn new_file_in_direction(
2220 workspace: &mut Workspace,
2221 direction: SplitDirection,
2222 cx: &mut ViewContext<Workspace>,
2223 ) {
2224 let project = workspace.project().clone();
2225 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2226
2227 cx.spawn(|workspace, mut cx| async move {
2228 let buffer = create.await?;
2229 workspace.update(&mut cx, move |workspace, cx| {
2230 workspace.split_item(
2231 direction,
2232 Box::new(
2233 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2234 ),
2235 cx,
2236 )
2237 })?;
2238 anyhow::Ok(())
2239 })
2240 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2241 ErrorCode::RemoteUpgradeRequired => Some(format!(
2242 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2243 e.error_tag("required").unwrap_or("the latest version")
2244 )),
2245 _ => None,
2246 });
2247 }
2248
2249 pub fn leader_peer_id(&self) -> Option<PeerId> {
2250 self.leader_peer_id
2251 }
2252
2253 pub fn buffer(&self) -> &Model<MultiBuffer> {
2254 &self.buffer
2255 }
2256
2257 pub fn workspace(&self) -> Option<View<Workspace>> {
2258 self.workspace.as_ref()?.0.upgrade()
2259 }
2260
2261 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2262 self.buffer().read(cx).title(cx)
2263 }
2264
2265 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2266 let git_blame_gutter_max_author_length = self
2267 .render_git_blame_gutter(cx)
2268 .then(|| {
2269 if let Some(blame) = self.blame.as_ref() {
2270 let max_author_length =
2271 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2272 Some(max_author_length)
2273 } else {
2274 None
2275 }
2276 })
2277 .flatten();
2278
2279 EditorSnapshot {
2280 mode: self.mode,
2281 show_gutter: self.show_gutter,
2282 show_line_numbers: self.show_line_numbers,
2283 show_git_diff_gutter: self.show_git_diff_gutter,
2284 show_code_actions: self.show_code_actions,
2285 show_runnables: self.show_runnables,
2286 git_blame_gutter_max_author_length,
2287 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2288 scroll_anchor: self.scroll_manager.anchor(),
2289 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2290 placeholder_text: self.placeholder_text.clone(),
2291 is_focused: self.focus_handle.is_focused(cx),
2292 current_line_highlight: self
2293 .current_line_highlight
2294 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2295 gutter_hovered: self.gutter_hovered,
2296 }
2297 }
2298
2299 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2300 self.buffer.read(cx).language_at(point, cx)
2301 }
2302
2303 pub fn file_at<T: ToOffset>(
2304 &self,
2305 point: T,
2306 cx: &AppContext,
2307 ) -> Option<Arc<dyn language::File>> {
2308 self.buffer.read(cx).read(cx).file_at(point).cloned()
2309 }
2310
2311 pub fn active_excerpt(
2312 &self,
2313 cx: &AppContext,
2314 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2315 self.buffer
2316 .read(cx)
2317 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2318 }
2319
2320 pub fn mode(&self) -> EditorMode {
2321 self.mode
2322 }
2323
2324 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2325 self.collaboration_hub.as_deref()
2326 }
2327
2328 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2329 self.collaboration_hub = Some(hub);
2330 }
2331
2332 pub fn set_custom_context_menu(
2333 &mut self,
2334 f: impl 'static
2335 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2336 ) {
2337 self.custom_context_menu = Some(Box::new(f))
2338 }
2339
2340 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2341 self.completion_provider = provider;
2342 }
2343
2344 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2345 self.semantics_provider.clone()
2346 }
2347
2348 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2349 self.semantics_provider = provider;
2350 }
2351
2352 pub fn set_inline_completion_provider<T>(
2353 &mut self,
2354 provider: Option<Model<T>>,
2355 cx: &mut ViewContext<Self>,
2356 ) where
2357 T: InlineCompletionProvider,
2358 {
2359 self.inline_completion_provider =
2360 provider.map(|provider| RegisteredInlineCompletionProvider {
2361 _subscription: cx.observe(&provider, |this, _, cx| {
2362 if this.focus_handle.is_focused(cx) {
2363 this.update_visible_inline_completion(cx);
2364 }
2365 }),
2366 provider: Arc::new(provider),
2367 });
2368 self.refresh_inline_completion(false, false, cx);
2369 }
2370
2371 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2372 self.placeholder_text.as_deref()
2373 }
2374
2375 pub fn set_placeholder_text(
2376 &mut self,
2377 placeholder_text: impl Into<Arc<str>>,
2378 cx: &mut ViewContext<Self>,
2379 ) {
2380 let placeholder_text = Some(placeholder_text.into());
2381 if self.placeholder_text != placeholder_text {
2382 self.placeholder_text = placeholder_text;
2383 cx.notify();
2384 }
2385 }
2386
2387 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2388 self.cursor_shape = cursor_shape;
2389
2390 // Disrupt blink for immediate user feedback that the cursor shape has changed
2391 self.blink_manager.update(cx, BlinkManager::show_cursor);
2392
2393 cx.notify();
2394 }
2395
2396 pub fn set_current_line_highlight(
2397 &mut self,
2398 current_line_highlight: Option<CurrentLineHighlight>,
2399 ) {
2400 self.current_line_highlight = current_line_highlight;
2401 }
2402
2403 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2404 self.collapse_matches = collapse_matches;
2405 }
2406
2407 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2408 if self.collapse_matches {
2409 return range.start..range.start;
2410 }
2411 range.clone()
2412 }
2413
2414 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2415 if self.display_map.read(cx).clip_at_line_ends != clip {
2416 self.display_map
2417 .update(cx, |map, _| map.clip_at_line_ends = clip);
2418 }
2419 }
2420
2421 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2422 self.input_enabled = input_enabled;
2423 }
2424
2425 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2426 self.enable_inline_completions = enabled;
2427 }
2428
2429 pub fn set_autoindent(&mut self, autoindent: bool) {
2430 if autoindent {
2431 self.autoindent_mode = Some(AutoindentMode::EachLine);
2432 } else {
2433 self.autoindent_mode = None;
2434 }
2435 }
2436
2437 pub fn read_only(&self, cx: &AppContext) -> bool {
2438 self.read_only || self.buffer.read(cx).read_only()
2439 }
2440
2441 pub fn set_read_only(&mut self, read_only: bool) {
2442 self.read_only = read_only;
2443 }
2444
2445 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2446 self.use_autoclose = autoclose;
2447 }
2448
2449 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2450 self.use_auto_surround = auto_surround;
2451 }
2452
2453 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2454 self.auto_replace_emoji_shortcode = auto_replace;
2455 }
2456
2457 pub fn toggle_inline_completions(
2458 &mut self,
2459 _: &ToggleInlineCompletions,
2460 cx: &mut ViewContext<Self>,
2461 ) {
2462 if self.show_inline_completions_override.is_some() {
2463 self.set_show_inline_completions(None, cx);
2464 } else {
2465 let cursor = self.selections.newest_anchor().head();
2466 if let Some((buffer, cursor_buffer_position)) =
2467 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2468 {
2469 let show_inline_completions =
2470 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2471 self.set_show_inline_completions(Some(show_inline_completions), cx);
2472 }
2473 }
2474 }
2475
2476 pub fn set_show_inline_completions(
2477 &mut self,
2478 show_inline_completions: Option<bool>,
2479 cx: &mut ViewContext<Self>,
2480 ) {
2481 self.show_inline_completions_override = show_inline_completions;
2482 self.refresh_inline_completion(false, true, cx);
2483 }
2484
2485 fn should_show_inline_completions(
2486 &self,
2487 buffer: &Model<Buffer>,
2488 buffer_position: language::Anchor,
2489 cx: &AppContext,
2490 ) -> bool {
2491 if let Some(provider) = self.inline_completion_provider() {
2492 if let Some(show_inline_completions) = self.show_inline_completions_override {
2493 show_inline_completions
2494 } else {
2495 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2496 }
2497 } else {
2498 false
2499 }
2500 }
2501
2502 pub fn set_use_modal_editing(&mut self, to: bool) {
2503 self.use_modal_editing = to;
2504 }
2505
2506 pub fn use_modal_editing(&self) -> bool {
2507 self.use_modal_editing
2508 }
2509
2510 fn selections_did_change(
2511 &mut self,
2512 local: bool,
2513 old_cursor_position: &Anchor,
2514 show_completions: bool,
2515 cx: &mut ViewContext<Self>,
2516 ) {
2517 cx.invalidate_character_coordinates();
2518
2519 // Copy selections to primary selection buffer
2520 #[cfg(target_os = "linux")]
2521 if local {
2522 let selections = self.selections.all::<usize>(cx);
2523 let buffer_handle = self.buffer.read(cx).read(cx);
2524
2525 let mut text = String::new();
2526 for (index, selection) in selections.iter().enumerate() {
2527 let text_for_selection = buffer_handle
2528 .text_for_range(selection.start..selection.end)
2529 .collect::<String>();
2530
2531 text.push_str(&text_for_selection);
2532 if index != selections.len() - 1 {
2533 text.push('\n');
2534 }
2535 }
2536
2537 if !text.is_empty() {
2538 cx.write_to_primary(ClipboardItem::new_string(text));
2539 }
2540 }
2541
2542 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2543 self.buffer.update(cx, |buffer, cx| {
2544 buffer.set_active_selections(
2545 &self.selections.disjoint_anchors(),
2546 self.selections.line_mode,
2547 self.cursor_shape,
2548 cx,
2549 )
2550 });
2551 }
2552 let display_map = self
2553 .display_map
2554 .update(cx, |display_map, cx| display_map.snapshot(cx));
2555 let buffer = &display_map.buffer_snapshot;
2556 self.add_selections_state = None;
2557 self.select_next_state = None;
2558 self.select_prev_state = None;
2559 self.select_larger_syntax_node_stack.clear();
2560 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2561 self.snippet_stack
2562 .invalidate(&self.selections.disjoint_anchors(), buffer);
2563 self.take_rename(false, cx);
2564
2565 let new_cursor_position = self.selections.newest_anchor().head();
2566
2567 self.push_to_nav_history(
2568 *old_cursor_position,
2569 Some(new_cursor_position.to_point(buffer)),
2570 cx,
2571 );
2572
2573 if local {
2574 let new_cursor_position = self.selections.newest_anchor().head();
2575 let mut context_menu = self.context_menu.write();
2576 let completion_menu = match context_menu.as_ref() {
2577 Some(ContextMenu::Completions(menu)) => Some(menu),
2578
2579 _ => {
2580 *context_menu = None;
2581 None
2582 }
2583 };
2584
2585 if let Some(completion_menu) = completion_menu {
2586 let cursor_position = new_cursor_position.to_offset(buffer);
2587 let (word_range, kind) =
2588 buffer.surrounding_word(completion_menu.initial_position, true);
2589 if kind == Some(CharKind::Word)
2590 && word_range.to_inclusive().contains(&cursor_position)
2591 {
2592 let mut completion_menu = completion_menu.clone();
2593 drop(context_menu);
2594
2595 let query = Self::completion_query(buffer, cursor_position);
2596 cx.spawn(move |this, mut cx| async move {
2597 completion_menu
2598 .filter(query.as_deref(), cx.background_executor().clone())
2599 .await;
2600
2601 this.update(&mut cx, |this, cx| {
2602 let mut context_menu = this.context_menu.write();
2603 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2604 return;
2605 };
2606
2607 if menu.id > completion_menu.id {
2608 return;
2609 }
2610
2611 *context_menu = Some(ContextMenu::Completions(completion_menu));
2612 drop(context_menu);
2613 cx.notify();
2614 })
2615 })
2616 .detach();
2617
2618 if show_completions {
2619 self.show_completions(&ShowCompletions { trigger: None }, cx);
2620 }
2621 } else {
2622 drop(context_menu);
2623 self.hide_context_menu(cx);
2624 }
2625 } else {
2626 drop(context_menu);
2627 }
2628
2629 hide_hover(self, cx);
2630
2631 if old_cursor_position.to_display_point(&display_map).row()
2632 != new_cursor_position.to_display_point(&display_map).row()
2633 {
2634 self.available_code_actions.take();
2635 }
2636 self.refresh_code_actions(cx);
2637 self.refresh_document_highlights(cx);
2638 refresh_matching_bracket_highlights(self, cx);
2639 self.discard_inline_completion(false, cx);
2640 linked_editing_ranges::refresh_linked_ranges(self, cx);
2641 if self.git_blame_inline_enabled {
2642 self.start_inline_blame_timer(cx);
2643 }
2644 }
2645
2646 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2647 cx.emit(EditorEvent::SelectionsChanged { local });
2648
2649 if self.selections.disjoint_anchors().len() == 1 {
2650 cx.emit(SearchEvent::ActiveMatchChanged)
2651 }
2652 cx.notify();
2653 }
2654
2655 pub fn change_selections<R>(
2656 &mut self,
2657 autoscroll: Option<Autoscroll>,
2658 cx: &mut ViewContext<Self>,
2659 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2660 ) -> R {
2661 self.change_selections_inner(autoscroll, true, cx, change)
2662 }
2663
2664 pub fn change_selections_inner<R>(
2665 &mut self,
2666 autoscroll: Option<Autoscroll>,
2667 request_completions: bool,
2668 cx: &mut ViewContext<Self>,
2669 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2670 ) -> R {
2671 let old_cursor_position = self.selections.newest_anchor().head();
2672 self.push_to_selection_history();
2673
2674 let (changed, result) = self.selections.change_with(cx, change);
2675
2676 if changed {
2677 if let Some(autoscroll) = autoscroll {
2678 self.request_autoscroll(autoscroll, cx);
2679 }
2680 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2681
2682 if self.should_open_signature_help_automatically(
2683 &old_cursor_position,
2684 self.signature_help_state.backspace_pressed(),
2685 cx,
2686 ) {
2687 self.show_signature_help(&ShowSignatureHelp, cx);
2688 }
2689 self.signature_help_state.set_backspace_pressed(false);
2690 }
2691
2692 result
2693 }
2694
2695 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2696 where
2697 I: IntoIterator<Item = (Range<S>, T)>,
2698 S: ToOffset,
2699 T: Into<Arc<str>>,
2700 {
2701 if self.read_only(cx) {
2702 return;
2703 }
2704
2705 self.buffer
2706 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2707 }
2708
2709 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2710 where
2711 I: IntoIterator<Item = (Range<S>, T)>,
2712 S: ToOffset,
2713 T: Into<Arc<str>>,
2714 {
2715 if self.read_only(cx) {
2716 return;
2717 }
2718
2719 self.buffer.update(cx, |buffer, cx| {
2720 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2721 });
2722 }
2723
2724 pub fn edit_with_block_indent<I, S, T>(
2725 &mut self,
2726 edits: I,
2727 original_indent_columns: Vec<u32>,
2728 cx: &mut ViewContext<Self>,
2729 ) where
2730 I: IntoIterator<Item = (Range<S>, T)>,
2731 S: ToOffset,
2732 T: Into<Arc<str>>,
2733 {
2734 if self.read_only(cx) {
2735 return;
2736 }
2737
2738 self.buffer.update(cx, |buffer, cx| {
2739 buffer.edit(
2740 edits,
2741 Some(AutoindentMode::Block {
2742 original_indent_columns,
2743 }),
2744 cx,
2745 )
2746 });
2747 }
2748
2749 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2750 self.hide_context_menu(cx);
2751
2752 match phase {
2753 SelectPhase::Begin {
2754 position,
2755 add,
2756 click_count,
2757 } => self.begin_selection(position, add, click_count, cx),
2758 SelectPhase::BeginColumnar {
2759 position,
2760 goal_column,
2761 reset,
2762 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2763 SelectPhase::Extend {
2764 position,
2765 click_count,
2766 } => self.extend_selection(position, click_count, cx),
2767 SelectPhase::Update {
2768 position,
2769 goal_column,
2770 scroll_delta,
2771 } => self.update_selection(position, goal_column, scroll_delta, cx),
2772 SelectPhase::End => self.end_selection(cx),
2773 }
2774 }
2775
2776 fn extend_selection(
2777 &mut self,
2778 position: DisplayPoint,
2779 click_count: usize,
2780 cx: &mut ViewContext<Self>,
2781 ) {
2782 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2783 let tail = self.selections.newest::<usize>(cx).tail();
2784 self.begin_selection(position, false, click_count, cx);
2785
2786 let position = position.to_offset(&display_map, Bias::Left);
2787 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2788
2789 let mut pending_selection = self
2790 .selections
2791 .pending_anchor()
2792 .expect("extend_selection not called with pending selection");
2793 if position >= tail {
2794 pending_selection.start = tail_anchor;
2795 } else {
2796 pending_selection.end = tail_anchor;
2797 pending_selection.reversed = true;
2798 }
2799
2800 let mut pending_mode = self.selections.pending_mode().unwrap();
2801 match &mut pending_mode {
2802 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2803 _ => {}
2804 }
2805
2806 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2807 s.set_pending(pending_selection, pending_mode)
2808 });
2809 }
2810
2811 fn begin_selection(
2812 &mut self,
2813 position: DisplayPoint,
2814 add: bool,
2815 click_count: usize,
2816 cx: &mut ViewContext<Self>,
2817 ) {
2818 if !self.focus_handle.is_focused(cx) {
2819 self.last_focused_descendant = None;
2820 cx.focus(&self.focus_handle);
2821 }
2822
2823 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2824 let buffer = &display_map.buffer_snapshot;
2825 let newest_selection = self.selections.newest_anchor().clone();
2826 let position = display_map.clip_point(position, Bias::Left);
2827
2828 let start;
2829 let end;
2830 let mode;
2831 let auto_scroll;
2832 match click_count {
2833 1 => {
2834 start = buffer.anchor_before(position.to_point(&display_map));
2835 end = start;
2836 mode = SelectMode::Character;
2837 auto_scroll = true;
2838 }
2839 2 => {
2840 let range = movement::surrounding_word(&display_map, position);
2841 start = buffer.anchor_before(range.start.to_point(&display_map));
2842 end = buffer.anchor_before(range.end.to_point(&display_map));
2843 mode = SelectMode::Word(start..end);
2844 auto_scroll = true;
2845 }
2846 3 => {
2847 let position = display_map
2848 .clip_point(position, Bias::Left)
2849 .to_point(&display_map);
2850 let line_start = display_map.prev_line_boundary(position).0;
2851 let next_line_start = buffer.clip_point(
2852 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2853 Bias::Left,
2854 );
2855 start = buffer.anchor_before(line_start);
2856 end = buffer.anchor_before(next_line_start);
2857 mode = SelectMode::Line(start..end);
2858 auto_scroll = true;
2859 }
2860 _ => {
2861 start = buffer.anchor_before(0);
2862 end = buffer.anchor_before(buffer.len());
2863 mode = SelectMode::All;
2864 auto_scroll = false;
2865 }
2866 }
2867
2868 let point_to_delete: Option<usize> = {
2869 let selected_points: Vec<Selection<Point>> =
2870 self.selections.disjoint_in_range(start..end, cx);
2871
2872 if !add || click_count > 1 {
2873 None
2874 } else if !selected_points.is_empty() {
2875 Some(selected_points[0].id)
2876 } else {
2877 let clicked_point_already_selected =
2878 self.selections.disjoint.iter().find(|selection| {
2879 selection.start.to_point(buffer) == start.to_point(buffer)
2880 || selection.end.to_point(buffer) == end.to_point(buffer)
2881 });
2882
2883 clicked_point_already_selected.map(|selection| selection.id)
2884 }
2885 };
2886
2887 let selections_count = self.selections.count();
2888
2889 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2890 if let Some(point_to_delete) = point_to_delete {
2891 s.delete(point_to_delete);
2892
2893 if selections_count == 1 {
2894 s.set_pending_anchor_range(start..end, mode);
2895 }
2896 } else {
2897 if !add {
2898 s.clear_disjoint();
2899 } else if click_count > 1 {
2900 s.delete(newest_selection.id)
2901 }
2902
2903 s.set_pending_anchor_range(start..end, mode);
2904 }
2905 });
2906 }
2907
2908 fn begin_columnar_selection(
2909 &mut self,
2910 position: DisplayPoint,
2911 goal_column: u32,
2912 reset: bool,
2913 cx: &mut ViewContext<Self>,
2914 ) {
2915 if !self.focus_handle.is_focused(cx) {
2916 self.last_focused_descendant = None;
2917 cx.focus(&self.focus_handle);
2918 }
2919
2920 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2921
2922 if reset {
2923 let pointer_position = display_map
2924 .buffer_snapshot
2925 .anchor_before(position.to_point(&display_map));
2926
2927 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2928 s.clear_disjoint();
2929 s.set_pending_anchor_range(
2930 pointer_position..pointer_position,
2931 SelectMode::Character,
2932 );
2933 });
2934 }
2935
2936 let tail = self.selections.newest::<Point>(cx).tail();
2937 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2938
2939 if !reset {
2940 self.select_columns(
2941 tail.to_display_point(&display_map),
2942 position,
2943 goal_column,
2944 &display_map,
2945 cx,
2946 );
2947 }
2948 }
2949
2950 fn update_selection(
2951 &mut self,
2952 position: DisplayPoint,
2953 goal_column: u32,
2954 scroll_delta: gpui::Point<f32>,
2955 cx: &mut ViewContext<Self>,
2956 ) {
2957 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2958
2959 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2960 let tail = tail.to_display_point(&display_map);
2961 self.select_columns(tail, position, goal_column, &display_map, cx);
2962 } else if let Some(mut pending) = self.selections.pending_anchor() {
2963 let buffer = self.buffer.read(cx).snapshot(cx);
2964 let head;
2965 let tail;
2966 let mode = self.selections.pending_mode().unwrap();
2967 match &mode {
2968 SelectMode::Character => {
2969 head = position.to_point(&display_map);
2970 tail = pending.tail().to_point(&buffer);
2971 }
2972 SelectMode::Word(original_range) => {
2973 let original_display_range = original_range.start.to_display_point(&display_map)
2974 ..original_range.end.to_display_point(&display_map);
2975 let original_buffer_range = original_display_range.start.to_point(&display_map)
2976 ..original_display_range.end.to_point(&display_map);
2977 if movement::is_inside_word(&display_map, position)
2978 || original_display_range.contains(&position)
2979 {
2980 let word_range = movement::surrounding_word(&display_map, position);
2981 if word_range.start < original_display_range.start {
2982 head = word_range.start.to_point(&display_map);
2983 } else {
2984 head = word_range.end.to_point(&display_map);
2985 }
2986 } else {
2987 head = position.to_point(&display_map);
2988 }
2989
2990 if head <= original_buffer_range.start {
2991 tail = original_buffer_range.end;
2992 } else {
2993 tail = original_buffer_range.start;
2994 }
2995 }
2996 SelectMode::Line(original_range) => {
2997 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2998
2999 let position = display_map
3000 .clip_point(position, Bias::Left)
3001 .to_point(&display_map);
3002 let line_start = display_map.prev_line_boundary(position).0;
3003 let next_line_start = buffer.clip_point(
3004 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3005 Bias::Left,
3006 );
3007
3008 if line_start < original_range.start {
3009 head = line_start
3010 } else {
3011 head = next_line_start
3012 }
3013
3014 if head <= original_range.start {
3015 tail = original_range.end;
3016 } else {
3017 tail = original_range.start;
3018 }
3019 }
3020 SelectMode::All => {
3021 return;
3022 }
3023 };
3024
3025 if head < tail {
3026 pending.start = buffer.anchor_before(head);
3027 pending.end = buffer.anchor_before(tail);
3028 pending.reversed = true;
3029 } else {
3030 pending.start = buffer.anchor_before(tail);
3031 pending.end = buffer.anchor_before(head);
3032 pending.reversed = false;
3033 }
3034
3035 self.change_selections(None, cx, |s| {
3036 s.set_pending(pending, mode);
3037 });
3038 } else {
3039 log::error!("update_selection dispatched with no pending selection");
3040 return;
3041 }
3042
3043 self.apply_scroll_delta(scroll_delta, cx);
3044 cx.notify();
3045 }
3046
3047 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3048 self.columnar_selection_tail.take();
3049 if self.selections.pending_anchor().is_some() {
3050 let selections = self.selections.all::<usize>(cx);
3051 self.change_selections(None, cx, |s| {
3052 s.select(selections);
3053 s.clear_pending();
3054 });
3055 }
3056 }
3057
3058 fn select_columns(
3059 &mut self,
3060 tail: DisplayPoint,
3061 head: DisplayPoint,
3062 goal_column: u32,
3063 display_map: &DisplaySnapshot,
3064 cx: &mut ViewContext<Self>,
3065 ) {
3066 let start_row = cmp::min(tail.row(), head.row());
3067 let end_row = cmp::max(tail.row(), head.row());
3068 let start_column = cmp::min(tail.column(), goal_column);
3069 let end_column = cmp::max(tail.column(), goal_column);
3070 let reversed = start_column < tail.column();
3071
3072 let selection_ranges = (start_row.0..=end_row.0)
3073 .map(DisplayRow)
3074 .filter_map(|row| {
3075 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3076 let start = display_map
3077 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3078 .to_point(display_map);
3079 let end = display_map
3080 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3081 .to_point(display_map);
3082 if reversed {
3083 Some(end..start)
3084 } else {
3085 Some(start..end)
3086 }
3087 } else {
3088 None
3089 }
3090 })
3091 .collect::<Vec<_>>();
3092
3093 self.change_selections(None, cx, |s| {
3094 s.select_ranges(selection_ranges);
3095 });
3096 cx.notify();
3097 }
3098
3099 pub fn has_pending_nonempty_selection(&self) -> bool {
3100 let pending_nonempty_selection = match self.selections.pending_anchor() {
3101 Some(Selection { start, end, .. }) => start != end,
3102 None => false,
3103 };
3104
3105 pending_nonempty_selection
3106 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3107 }
3108
3109 pub fn has_pending_selection(&self) -> bool {
3110 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3111 }
3112
3113 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3114 if self.clear_expanded_diff_hunks(cx) {
3115 cx.notify();
3116 return;
3117 }
3118 if self.dismiss_menus_and_popups(true, cx) {
3119 return;
3120 }
3121
3122 if self.mode == EditorMode::Full
3123 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3124 {
3125 return;
3126 }
3127
3128 cx.propagate();
3129 }
3130
3131 pub fn dismiss_menus_and_popups(
3132 &mut self,
3133 should_report_inline_completion_event: bool,
3134 cx: &mut ViewContext<Self>,
3135 ) -> bool {
3136 if self.take_rename(false, cx).is_some() {
3137 return true;
3138 }
3139
3140 if hide_hover(self, cx) {
3141 return true;
3142 }
3143
3144 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3145 return true;
3146 }
3147
3148 if self.hide_context_menu(cx).is_some() {
3149 return true;
3150 }
3151
3152 if self.mouse_context_menu.take().is_some() {
3153 return true;
3154 }
3155
3156 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3157 return true;
3158 }
3159
3160 if self.snippet_stack.pop().is_some() {
3161 return true;
3162 }
3163
3164 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3165 self.dismiss_diagnostics(cx);
3166 return true;
3167 }
3168
3169 false
3170 }
3171
3172 fn linked_editing_ranges_for(
3173 &self,
3174 selection: Range<text::Anchor>,
3175 cx: &AppContext,
3176 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3177 if self.linked_edit_ranges.is_empty() {
3178 return None;
3179 }
3180 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3181 selection.end.buffer_id.and_then(|end_buffer_id| {
3182 if selection.start.buffer_id != Some(end_buffer_id) {
3183 return None;
3184 }
3185 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3186 let snapshot = buffer.read(cx).snapshot();
3187 self.linked_edit_ranges
3188 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3189 .map(|ranges| (ranges, snapshot, buffer))
3190 })?;
3191 use text::ToOffset as TO;
3192 // find offset from the start of current range to current cursor position
3193 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3194
3195 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3196 let start_difference = start_offset - start_byte_offset;
3197 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3198 let end_difference = end_offset - start_byte_offset;
3199 // Current range has associated linked ranges.
3200 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3201 for range in linked_ranges.iter() {
3202 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3203 let end_offset = start_offset + end_difference;
3204 let start_offset = start_offset + start_difference;
3205 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3206 continue;
3207 }
3208 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3209 if s.start.buffer_id != selection.start.buffer_id
3210 || s.end.buffer_id != selection.end.buffer_id
3211 {
3212 return false;
3213 }
3214 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3215 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3216 }) {
3217 continue;
3218 }
3219 let start = buffer_snapshot.anchor_after(start_offset);
3220 let end = buffer_snapshot.anchor_after(end_offset);
3221 linked_edits
3222 .entry(buffer.clone())
3223 .or_default()
3224 .push(start..end);
3225 }
3226 Some(linked_edits)
3227 }
3228
3229 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3230 let text: Arc<str> = text.into();
3231
3232 if self.read_only(cx) {
3233 return;
3234 }
3235
3236 let selections = self.selections.all_adjusted(cx);
3237 let mut bracket_inserted = false;
3238 let mut edits = Vec::new();
3239 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3240 let mut new_selections = Vec::with_capacity(selections.len());
3241 let mut new_autoclose_regions = Vec::new();
3242 let snapshot = self.buffer.read(cx).read(cx);
3243
3244 for (selection, autoclose_region) in
3245 self.selections_with_autoclose_regions(selections, &snapshot)
3246 {
3247 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3248 // Determine if the inserted text matches the opening or closing
3249 // bracket of any of this language's bracket pairs.
3250 let mut bracket_pair = None;
3251 let mut is_bracket_pair_start = false;
3252 let mut is_bracket_pair_end = false;
3253 if !text.is_empty() {
3254 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3255 // and they are removing the character that triggered IME popup.
3256 for (pair, enabled) in scope.brackets() {
3257 if !pair.close && !pair.surround {
3258 continue;
3259 }
3260
3261 if enabled && pair.start.ends_with(text.as_ref()) {
3262 let prefix_len = pair.start.len() - text.len();
3263 let preceding_text_matches_prefix = prefix_len == 0
3264 || (selection.start.column >= (prefix_len as u32)
3265 && snapshot.contains_str_at(
3266 Point::new(
3267 selection.start.row,
3268 selection.start.column - (prefix_len as u32),
3269 ),
3270 &pair.start[..prefix_len],
3271 ));
3272 if preceding_text_matches_prefix {
3273 bracket_pair = Some(pair.clone());
3274 is_bracket_pair_start = true;
3275 break;
3276 }
3277 }
3278 if pair.end.as_str() == text.as_ref() {
3279 bracket_pair = Some(pair.clone());
3280 is_bracket_pair_end = true;
3281 break;
3282 }
3283 }
3284 }
3285
3286 if let Some(bracket_pair) = bracket_pair {
3287 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3288 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3289 let auto_surround =
3290 self.use_auto_surround && snapshot_settings.use_auto_surround;
3291 if selection.is_empty() {
3292 if is_bracket_pair_start {
3293 // If the inserted text is a suffix of an opening bracket and the
3294 // selection is preceded by the rest of the opening bracket, then
3295 // insert the closing bracket.
3296 let following_text_allows_autoclose = snapshot
3297 .chars_at(selection.start)
3298 .next()
3299 .map_or(true, |c| scope.should_autoclose_before(c));
3300
3301 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3302 && bracket_pair.start.len() == 1
3303 {
3304 let target = bracket_pair.start.chars().next().unwrap();
3305 let current_line_count = snapshot
3306 .reversed_chars_at(selection.start)
3307 .take_while(|&c| c != '\n')
3308 .filter(|&c| c == target)
3309 .count();
3310 current_line_count % 2 == 1
3311 } else {
3312 false
3313 };
3314
3315 if autoclose
3316 && bracket_pair.close
3317 && following_text_allows_autoclose
3318 && !is_closing_quote
3319 {
3320 let anchor = snapshot.anchor_before(selection.end);
3321 new_selections.push((selection.map(|_| anchor), text.len()));
3322 new_autoclose_regions.push((
3323 anchor,
3324 text.len(),
3325 selection.id,
3326 bracket_pair.clone(),
3327 ));
3328 edits.push((
3329 selection.range(),
3330 format!("{}{}", text, bracket_pair.end).into(),
3331 ));
3332 bracket_inserted = true;
3333 continue;
3334 }
3335 }
3336
3337 if let Some(region) = autoclose_region {
3338 // If the selection is followed by an auto-inserted closing bracket,
3339 // then don't insert that closing bracket again; just move the selection
3340 // past the closing bracket.
3341 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3342 && text.as_ref() == region.pair.end.as_str();
3343 if should_skip {
3344 let anchor = snapshot.anchor_after(selection.end);
3345 new_selections
3346 .push((selection.map(|_| anchor), region.pair.end.len()));
3347 continue;
3348 }
3349 }
3350
3351 let always_treat_brackets_as_autoclosed = snapshot
3352 .settings_at(selection.start, cx)
3353 .always_treat_brackets_as_autoclosed;
3354 if always_treat_brackets_as_autoclosed
3355 && is_bracket_pair_end
3356 && snapshot.contains_str_at(selection.end, text.as_ref())
3357 {
3358 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3359 // and the inserted text is a closing bracket and the selection is followed
3360 // by the closing bracket then move the selection past the closing bracket.
3361 let anchor = snapshot.anchor_after(selection.end);
3362 new_selections.push((selection.map(|_| anchor), text.len()));
3363 continue;
3364 }
3365 }
3366 // If an opening bracket is 1 character long and is typed while
3367 // text is selected, then surround that text with the bracket pair.
3368 else if auto_surround
3369 && bracket_pair.surround
3370 && is_bracket_pair_start
3371 && bracket_pair.start.chars().count() == 1
3372 {
3373 edits.push((selection.start..selection.start, text.clone()));
3374 edits.push((
3375 selection.end..selection.end,
3376 bracket_pair.end.as_str().into(),
3377 ));
3378 bracket_inserted = true;
3379 new_selections.push((
3380 Selection {
3381 id: selection.id,
3382 start: snapshot.anchor_after(selection.start),
3383 end: snapshot.anchor_before(selection.end),
3384 reversed: selection.reversed,
3385 goal: selection.goal,
3386 },
3387 0,
3388 ));
3389 continue;
3390 }
3391 }
3392 }
3393
3394 if self.auto_replace_emoji_shortcode
3395 && selection.is_empty()
3396 && text.as_ref().ends_with(':')
3397 {
3398 if let Some(possible_emoji_short_code) =
3399 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3400 {
3401 if !possible_emoji_short_code.is_empty() {
3402 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3403 let emoji_shortcode_start = Point::new(
3404 selection.start.row,
3405 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3406 );
3407
3408 // Remove shortcode from buffer
3409 edits.push((
3410 emoji_shortcode_start..selection.start,
3411 "".to_string().into(),
3412 ));
3413 new_selections.push((
3414 Selection {
3415 id: selection.id,
3416 start: snapshot.anchor_after(emoji_shortcode_start),
3417 end: snapshot.anchor_before(selection.start),
3418 reversed: selection.reversed,
3419 goal: selection.goal,
3420 },
3421 0,
3422 ));
3423
3424 // Insert emoji
3425 let selection_start_anchor = snapshot.anchor_after(selection.start);
3426 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3427 edits.push((selection.start..selection.end, emoji.to_string().into()));
3428
3429 continue;
3430 }
3431 }
3432 }
3433 }
3434
3435 // If not handling any auto-close operation, then just replace the selected
3436 // text with the given input and move the selection to the end of the
3437 // newly inserted text.
3438 let anchor = snapshot.anchor_after(selection.end);
3439 if !self.linked_edit_ranges.is_empty() {
3440 let start_anchor = snapshot.anchor_before(selection.start);
3441
3442 let is_word_char = text.chars().next().map_or(true, |char| {
3443 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3444 classifier.is_word(char)
3445 });
3446
3447 if is_word_char {
3448 if let Some(ranges) = self
3449 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3450 {
3451 for (buffer, edits) in ranges {
3452 linked_edits
3453 .entry(buffer.clone())
3454 .or_default()
3455 .extend(edits.into_iter().map(|range| (range, text.clone())));
3456 }
3457 }
3458 }
3459 }
3460
3461 new_selections.push((selection.map(|_| anchor), 0));
3462 edits.push((selection.start..selection.end, text.clone()));
3463 }
3464
3465 drop(snapshot);
3466
3467 self.transact(cx, |this, cx| {
3468 this.buffer.update(cx, |buffer, cx| {
3469 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3470 });
3471 for (buffer, edits) in linked_edits {
3472 buffer.update(cx, |buffer, cx| {
3473 let snapshot = buffer.snapshot();
3474 let edits = edits
3475 .into_iter()
3476 .map(|(range, text)| {
3477 use text::ToPoint as TP;
3478 let end_point = TP::to_point(&range.end, &snapshot);
3479 let start_point = TP::to_point(&range.start, &snapshot);
3480 (start_point..end_point, text)
3481 })
3482 .sorted_by_key(|(range, _)| range.start)
3483 .collect::<Vec<_>>();
3484 buffer.edit(edits, None, cx);
3485 })
3486 }
3487 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3488 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3489 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
3490 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
3491 .zip(new_selection_deltas)
3492 .map(|(selection, delta)| Selection {
3493 id: selection.id,
3494 start: selection.start + delta,
3495 end: selection.end + delta,
3496 reversed: selection.reversed,
3497 goal: SelectionGoal::None,
3498 })
3499 .collect::<Vec<_>>();
3500
3501 let mut i = 0;
3502 for (position, delta, selection_id, pair) in new_autoclose_regions {
3503 let position = position.to_offset(&map.buffer_snapshot) + delta;
3504 let start = map.buffer_snapshot.anchor_before(position);
3505 let end = map.buffer_snapshot.anchor_after(position);
3506 while let Some(existing_state) = this.autoclose_regions.get(i) {
3507 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
3508 Ordering::Less => i += 1,
3509 Ordering::Greater => break,
3510 Ordering::Equal => {
3511 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
3512 Ordering::Less => i += 1,
3513 Ordering::Equal => break,
3514 Ordering::Greater => break,
3515 }
3516 }
3517 }
3518 }
3519 this.autoclose_regions.insert(
3520 i,
3521 AutocloseRegion {
3522 selection_id,
3523 range: start..end,
3524 pair,
3525 },
3526 );
3527 }
3528
3529 let had_active_inline_completion = this.has_active_inline_completion(cx);
3530 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3531 s.select(new_selections)
3532 });
3533
3534 if !bracket_inserted {
3535 if let Some(on_type_format_task) =
3536 this.trigger_on_type_formatting(text.to_string(), cx)
3537 {
3538 on_type_format_task.detach_and_log_err(cx);
3539 }
3540 }
3541
3542 let editor_settings = EditorSettings::get_global(cx);
3543 if bracket_inserted
3544 && (editor_settings.auto_signature_help
3545 || editor_settings.show_signature_help_after_edits)
3546 {
3547 this.show_signature_help(&ShowSignatureHelp, cx);
3548 }
3549
3550 let trigger_in_words = !had_active_inline_completion;
3551 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3552 linked_editing_ranges::refresh_linked_ranges(this, cx);
3553 this.refresh_inline_completion(true, false, cx);
3554 });
3555 }
3556
3557 fn find_possible_emoji_shortcode_at_position(
3558 snapshot: &MultiBufferSnapshot,
3559 position: Point,
3560 ) -> Option<String> {
3561 let mut chars = Vec::new();
3562 let mut found_colon = false;
3563 for char in snapshot.reversed_chars_at(position).take(100) {
3564 // Found a possible emoji shortcode in the middle of the buffer
3565 if found_colon {
3566 if char.is_whitespace() {
3567 chars.reverse();
3568 return Some(chars.iter().collect());
3569 }
3570 // If the previous character is not a whitespace, we are in the middle of a word
3571 // and we only want to complete the shortcode if the word is made up of other emojis
3572 let mut containing_word = String::new();
3573 for ch in snapshot
3574 .reversed_chars_at(position)
3575 .skip(chars.len() + 1)
3576 .take(100)
3577 {
3578 if ch.is_whitespace() {
3579 break;
3580 }
3581 containing_word.push(ch);
3582 }
3583 let containing_word = containing_word.chars().rev().collect::<String>();
3584 if util::word_consists_of_emojis(containing_word.as_str()) {
3585 chars.reverse();
3586 return Some(chars.iter().collect());
3587 }
3588 }
3589
3590 if char.is_whitespace() || !char.is_ascii() {
3591 return None;
3592 }
3593 if char == ':' {
3594 found_colon = true;
3595 } else {
3596 chars.push(char);
3597 }
3598 }
3599 // Found a possible emoji shortcode at the beginning of the buffer
3600 chars.reverse();
3601 Some(chars.iter().collect())
3602 }
3603
3604 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3605 self.transact(cx, |this, cx| {
3606 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3607 let selections = this.selections.all::<usize>(cx);
3608 let multi_buffer = this.buffer.read(cx);
3609 let buffer = multi_buffer.snapshot(cx);
3610 selections
3611 .iter()
3612 .map(|selection| {
3613 let start_point = selection.start.to_point(&buffer);
3614 let mut indent =
3615 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3616 indent.len = cmp::min(indent.len, start_point.column);
3617 let start = selection.start;
3618 let end = selection.end;
3619 let selection_is_empty = start == end;
3620 let language_scope = buffer.language_scope_at(start);
3621 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3622 &language_scope
3623 {
3624 let leading_whitespace_len = buffer
3625 .reversed_chars_at(start)
3626 .take_while(|c| c.is_whitespace() && *c != '\n')
3627 .map(|c| c.len_utf8())
3628 .sum::<usize>();
3629
3630 let trailing_whitespace_len = buffer
3631 .chars_at(end)
3632 .take_while(|c| c.is_whitespace() && *c != '\n')
3633 .map(|c| c.len_utf8())
3634 .sum::<usize>();
3635
3636 let insert_extra_newline =
3637 language.brackets().any(|(pair, enabled)| {
3638 let pair_start = pair.start.trim_end();
3639 let pair_end = pair.end.trim_start();
3640
3641 enabled
3642 && pair.newline
3643 && buffer.contains_str_at(
3644 end + trailing_whitespace_len,
3645 pair_end,
3646 )
3647 && buffer.contains_str_at(
3648 (start - leading_whitespace_len)
3649 .saturating_sub(pair_start.len()),
3650 pair_start,
3651 )
3652 });
3653
3654 // Comment extension on newline is allowed only for cursor selections
3655 let comment_delimiter = maybe!({
3656 if !selection_is_empty {
3657 return None;
3658 }
3659
3660 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3661 return None;
3662 }
3663
3664 let delimiters = language.line_comment_prefixes();
3665 let max_len_of_delimiter =
3666 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3667 let (snapshot, range) =
3668 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3669
3670 let mut index_of_first_non_whitespace = 0;
3671 let comment_candidate = snapshot
3672 .chars_for_range(range)
3673 .skip_while(|c| {
3674 let should_skip = c.is_whitespace();
3675 if should_skip {
3676 index_of_first_non_whitespace += 1;
3677 }
3678 should_skip
3679 })
3680 .take(max_len_of_delimiter)
3681 .collect::<String>();
3682 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3683 comment_candidate.starts_with(comment_prefix.as_ref())
3684 })?;
3685 let cursor_is_placed_after_comment_marker =
3686 index_of_first_non_whitespace + comment_prefix.len()
3687 <= start_point.column as usize;
3688 if cursor_is_placed_after_comment_marker {
3689 Some(comment_prefix.clone())
3690 } else {
3691 None
3692 }
3693 });
3694 (comment_delimiter, insert_extra_newline)
3695 } else {
3696 (None, false)
3697 };
3698
3699 let capacity_for_delimiter = comment_delimiter
3700 .as_deref()
3701 .map(str::len)
3702 .unwrap_or_default();
3703 let mut new_text =
3704 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3705 new_text.push('\n');
3706 new_text.extend(indent.chars());
3707 if let Some(delimiter) = &comment_delimiter {
3708 new_text.push_str(delimiter);
3709 }
3710 if insert_extra_newline {
3711 new_text = new_text.repeat(2);
3712 }
3713
3714 let anchor = buffer.anchor_after(end);
3715 let new_selection = selection.map(|_| anchor);
3716 (
3717 (start..end, new_text),
3718 (insert_extra_newline, new_selection),
3719 )
3720 })
3721 .unzip()
3722 };
3723
3724 this.edit_with_autoindent(edits, cx);
3725 let buffer = this.buffer.read(cx).snapshot(cx);
3726 let new_selections = selection_fixup_info
3727 .into_iter()
3728 .map(|(extra_newline_inserted, new_selection)| {
3729 let mut cursor = new_selection.end.to_point(&buffer);
3730 if extra_newline_inserted {
3731 cursor.row -= 1;
3732 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3733 }
3734 new_selection.map(|_| cursor)
3735 })
3736 .collect();
3737
3738 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3739 this.refresh_inline_completion(true, false, cx);
3740 });
3741 }
3742
3743 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3744 let buffer = self.buffer.read(cx);
3745 let snapshot = buffer.snapshot(cx);
3746
3747 let mut edits = Vec::new();
3748 let mut rows = Vec::new();
3749
3750 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3751 let cursor = selection.head();
3752 let row = cursor.row;
3753
3754 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3755
3756 let newline = "\n".to_string();
3757 edits.push((start_of_line..start_of_line, newline));
3758
3759 rows.push(row + rows_inserted as u32);
3760 }
3761
3762 self.transact(cx, |editor, cx| {
3763 editor.edit(edits, cx);
3764
3765 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3766 let mut index = 0;
3767 s.move_cursors_with(|map, _, _| {
3768 let row = rows[index];
3769 index += 1;
3770
3771 let point = Point::new(row, 0);
3772 let boundary = map.next_line_boundary(point).1;
3773 let clipped = map.clip_point(boundary, Bias::Left);
3774
3775 (clipped, SelectionGoal::None)
3776 });
3777 });
3778
3779 let mut indent_edits = Vec::new();
3780 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3781 for row in rows {
3782 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3783 for (row, indent) in indents {
3784 if indent.len == 0 {
3785 continue;
3786 }
3787
3788 let text = match indent.kind {
3789 IndentKind::Space => " ".repeat(indent.len as usize),
3790 IndentKind::Tab => "\t".repeat(indent.len as usize),
3791 };
3792 let point = Point::new(row.0, 0);
3793 indent_edits.push((point..point, text));
3794 }
3795 }
3796 editor.edit(indent_edits, cx);
3797 });
3798 }
3799
3800 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3801 let buffer = self.buffer.read(cx);
3802 let snapshot = buffer.snapshot(cx);
3803
3804 let mut edits = Vec::new();
3805 let mut rows = Vec::new();
3806 let mut rows_inserted = 0;
3807
3808 for selection in self.selections.all_adjusted(cx) {
3809 let cursor = selection.head();
3810 let row = cursor.row;
3811
3812 let point = Point::new(row + 1, 0);
3813 let start_of_line = snapshot.clip_point(point, Bias::Left);
3814
3815 let newline = "\n".to_string();
3816 edits.push((start_of_line..start_of_line, newline));
3817
3818 rows_inserted += 1;
3819 rows.push(row + rows_inserted);
3820 }
3821
3822 self.transact(cx, |editor, cx| {
3823 editor.edit(edits, cx);
3824
3825 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3826 let mut index = 0;
3827 s.move_cursors_with(|map, _, _| {
3828 let row = rows[index];
3829 index += 1;
3830
3831 let point = Point::new(row, 0);
3832 let boundary = map.next_line_boundary(point).1;
3833 let clipped = map.clip_point(boundary, Bias::Left);
3834
3835 (clipped, SelectionGoal::None)
3836 });
3837 });
3838
3839 let mut indent_edits = Vec::new();
3840 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3841 for row in rows {
3842 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3843 for (row, indent) in indents {
3844 if indent.len == 0 {
3845 continue;
3846 }
3847
3848 let text = match indent.kind {
3849 IndentKind::Space => " ".repeat(indent.len as usize),
3850 IndentKind::Tab => "\t".repeat(indent.len as usize),
3851 };
3852 let point = Point::new(row.0, 0);
3853 indent_edits.push((point..point, text));
3854 }
3855 }
3856 editor.edit(indent_edits, cx);
3857 });
3858 }
3859
3860 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3861 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3862 original_indent_columns: Vec::new(),
3863 });
3864 self.insert_with_autoindent_mode(text, autoindent, cx);
3865 }
3866
3867 fn insert_with_autoindent_mode(
3868 &mut self,
3869 text: &str,
3870 autoindent_mode: Option<AutoindentMode>,
3871 cx: &mut ViewContext<Self>,
3872 ) {
3873 if self.read_only(cx) {
3874 return;
3875 }
3876
3877 let text: Arc<str> = text.into();
3878 self.transact(cx, |this, cx| {
3879 let old_selections = this.selections.all_adjusted(cx);
3880 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3881 let anchors = {
3882 let snapshot = buffer.read(cx);
3883 old_selections
3884 .iter()
3885 .map(|s| {
3886 let anchor = snapshot.anchor_after(s.head());
3887 s.map(|_| anchor)
3888 })
3889 .collect::<Vec<_>>()
3890 };
3891 buffer.edit(
3892 old_selections
3893 .iter()
3894 .map(|s| (s.start..s.end, text.clone())),
3895 autoindent_mode,
3896 cx,
3897 );
3898 anchors
3899 });
3900
3901 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3902 s.select_anchors(selection_anchors);
3903 })
3904 });
3905 }
3906
3907 fn trigger_completion_on_input(
3908 &mut self,
3909 text: &str,
3910 trigger_in_words: bool,
3911 cx: &mut ViewContext<Self>,
3912 ) {
3913 if self.is_completion_trigger(text, trigger_in_words, cx) {
3914 self.show_completions(
3915 &ShowCompletions {
3916 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3917 },
3918 cx,
3919 );
3920 } else {
3921 self.hide_context_menu(cx);
3922 }
3923 }
3924
3925 fn is_completion_trigger(
3926 &self,
3927 text: &str,
3928 trigger_in_words: bool,
3929 cx: &mut ViewContext<Self>,
3930 ) -> bool {
3931 let position = self.selections.newest_anchor().head();
3932 let multibuffer = self.buffer.read(cx);
3933 let Some(buffer) = position
3934 .buffer_id
3935 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3936 else {
3937 return false;
3938 };
3939
3940 if let Some(completion_provider) = &self.completion_provider {
3941 completion_provider.is_completion_trigger(
3942 &buffer,
3943 position.text_anchor,
3944 text,
3945 trigger_in_words,
3946 cx,
3947 )
3948 } else {
3949 false
3950 }
3951 }
3952
3953 /// If any empty selections is touching the start of its innermost containing autoclose
3954 /// region, expand it to select the brackets.
3955 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3956 let selections = self.selections.all::<usize>(cx);
3957 let buffer = self.buffer.read(cx).read(cx);
3958 let new_selections = self
3959 .selections_with_autoclose_regions(selections, &buffer)
3960 .map(|(mut selection, region)| {
3961 if !selection.is_empty() {
3962 return selection;
3963 }
3964
3965 if let Some(region) = region {
3966 let mut range = region.range.to_offset(&buffer);
3967 if selection.start == range.start && range.start >= region.pair.start.len() {
3968 range.start -= region.pair.start.len();
3969 if buffer.contains_str_at(range.start, ®ion.pair.start)
3970 && buffer.contains_str_at(range.end, ®ion.pair.end)
3971 {
3972 range.end += region.pair.end.len();
3973 selection.start = range.start;
3974 selection.end = range.end;
3975
3976 return selection;
3977 }
3978 }
3979 }
3980
3981 let always_treat_brackets_as_autoclosed = buffer
3982 .settings_at(selection.start, cx)
3983 .always_treat_brackets_as_autoclosed;
3984
3985 if !always_treat_brackets_as_autoclosed {
3986 return selection;
3987 }
3988
3989 if let Some(scope) = buffer.language_scope_at(selection.start) {
3990 for (pair, enabled) in scope.brackets() {
3991 if !enabled || !pair.close {
3992 continue;
3993 }
3994
3995 if buffer.contains_str_at(selection.start, &pair.end) {
3996 let pair_start_len = pair.start.len();
3997 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3998 {
3999 selection.start -= pair_start_len;
4000 selection.end += pair.end.len();
4001
4002 return selection;
4003 }
4004 }
4005 }
4006 }
4007
4008 selection
4009 })
4010 .collect();
4011
4012 drop(buffer);
4013 self.change_selections(None, cx, |selections| selections.select(new_selections));
4014 }
4015
4016 /// Iterate the given selections, and for each one, find the smallest surrounding
4017 /// autoclose region. This uses the ordering of the selections and the autoclose
4018 /// regions to avoid repeated comparisons.
4019 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4020 &'a self,
4021 selections: impl IntoIterator<Item = Selection<D>>,
4022 buffer: &'a MultiBufferSnapshot,
4023 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4024 let mut i = 0;
4025 let mut regions = self.autoclose_regions.as_slice();
4026 selections.into_iter().map(move |selection| {
4027 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4028
4029 let mut enclosing = None;
4030 while let Some(pair_state) = regions.get(i) {
4031 if pair_state.range.end.to_offset(buffer) < range.start {
4032 regions = ®ions[i + 1..];
4033 i = 0;
4034 } else if pair_state.range.start.to_offset(buffer) > range.end {
4035 break;
4036 } else {
4037 if pair_state.selection_id == selection.id {
4038 enclosing = Some(pair_state);
4039 }
4040 i += 1;
4041 }
4042 }
4043
4044 (selection, enclosing)
4045 })
4046 }
4047
4048 /// Remove any autoclose regions that no longer contain their selection.
4049 fn invalidate_autoclose_regions(
4050 &mut self,
4051 mut selections: &[Selection<Anchor>],
4052 buffer: &MultiBufferSnapshot,
4053 ) {
4054 self.autoclose_regions.retain(|state| {
4055 let mut i = 0;
4056 while let Some(selection) = selections.get(i) {
4057 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4058 selections = &selections[1..];
4059 continue;
4060 }
4061 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4062 break;
4063 }
4064 if selection.id == state.selection_id {
4065 return true;
4066 } else {
4067 i += 1;
4068 }
4069 }
4070 false
4071 });
4072 }
4073
4074 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4075 let offset = position.to_offset(buffer);
4076 let (word_range, kind) = buffer.surrounding_word(offset, true);
4077 if offset > word_range.start && kind == Some(CharKind::Word) {
4078 Some(
4079 buffer
4080 .text_for_range(word_range.start..offset)
4081 .collect::<String>(),
4082 )
4083 } else {
4084 None
4085 }
4086 }
4087
4088 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4089 self.refresh_inlay_hints(
4090 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4091 cx,
4092 );
4093 }
4094
4095 pub fn inlay_hints_enabled(&self) -> bool {
4096 self.inlay_hint_cache.enabled
4097 }
4098
4099 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4100 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4101 return;
4102 }
4103
4104 let reason_description = reason.description();
4105 let ignore_debounce = matches!(
4106 reason,
4107 InlayHintRefreshReason::SettingsChange(_)
4108 | InlayHintRefreshReason::Toggle(_)
4109 | InlayHintRefreshReason::ExcerptsRemoved(_)
4110 );
4111 let (invalidate_cache, required_languages) = match reason {
4112 InlayHintRefreshReason::Toggle(enabled) => {
4113 self.inlay_hint_cache.enabled = enabled;
4114 if enabled {
4115 (InvalidationStrategy::RefreshRequested, None)
4116 } else {
4117 self.inlay_hint_cache.clear();
4118 self.splice_inlays(
4119 self.visible_inlay_hints(cx)
4120 .iter()
4121 .map(|inlay| inlay.id)
4122 .collect(),
4123 Vec::new(),
4124 cx,
4125 );
4126 return;
4127 }
4128 }
4129 InlayHintRefreshReason::SettingsChange(new_settings) => {
4130 match self.inlay_hint_cache.update_settings(
4131 &self.buffer,
4132 new_settings,
4133 self.visible_inlay_hints(cx),
4134 cx,
4135 ) {
4136 ControlFlow::Break(Some(InlaySplice {
4137 to_remove,
4138 to_insert,
4139 })) => {
4140 self.splice_inlays(to_remove, to_insert, cx);
4141 return;
4142 }
4143 ControlFlow::Break(None) => return,
4144 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4145 }
4146 }
4147 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4148 if let Some(InlaySplice {
4149 to_remove,
4150 to_insert,
4151 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4152 {
4153 self.splice_inlays(to_remove, to_insert, cx);
4154 }
4155 return;
4156 }
4157 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4158 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4159 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4160 }
4161 InlayHintRefreshReason::RefreshRequested => {
4162 (InvalidationStrategy::RefreshRequested, None)
4163 }
4164 };
4165
4166 if let Some(InlaySplice {
4167 to_remove,
4168 to_insert,
4169 }) = self.inlay_hint_cache.spawn_hint_refresh(
4170 reason_description,
4171 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4172 invalidate_cache,
4173 ignore_debounce,
4174 cx,
4175 ) {
4176 self.splice_inlays(to_remove, to_insert, cx);
4177 }
4178 }
4179
4180 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4181 self.display_map
4182 .read(cx)
4183 .current_inlays()
4184 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4185 .cloned()
4186 .collect()
4187 }
4188
4189 pub fn excerpts_for_inlay_hints_query(
4190 &self,
4191 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4192 cx: &mut ViewContext<Editor>,
4193 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4194 let Some(project) = self.project.as_ref() else {
4195 return HashMap::default();
4196 };
4197 let project = project.read(cx);
4198 let multi_buffer = self.buffer().read(cx);
4199 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4200 let multi_buffer_visible_start = self
4201 .scroll_manager
4202 .anchor()
4203 .anchor
4204 .to_point(&multi_buffer_snapshot);
4205 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4206 multi_buffer_visible_start
4207 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4208 Bias::Left,
4209 );
4210 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4211 multi_buffer
4212 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4213 .into_iter()
4214 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4215 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4216 let buffer = buffer_handle.read(cx);
4217 let buffer_file = project::File::from_dyn(buffer.file())?;
4218 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4219 let worktree_entry = buffer_worktree
4220 .read(cx)
4221 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4222 if worktree_entry.is_ignored {
4223 return None;
4224 }
4225
4226 let language = buffer.language()?;
4227 if let Some(restrict_to_languages) = restrict_to_languages {
4228 if !restrict_to_languages.contains(language) {
4229 return None;
4230 }
4231 }
4232 Some((
4233 excerpt_id,
4234 (
4235 buffer_handle,
4236 buffer.version().clone(),
4237 excerpt_visible_range,
4238 ),
4239 ))
4240 })
4241 .collect()
4242 }
4243
4244 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4245 TextLayoutDetails {
4246 text_system: cx.text_system().clone(),
4247 editor_style: self.style.clone().unwrap(),
4248 rem_size: cx.rem_size(),
4249 scroll_anchor: self.scroll_manager.anchor(),
4250 visible_rows: self.visible_line_count(),
4251 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4252 }
4253 }
4254
4255 fn splice_inlays(
4256 &self,
4257 to_remove: Vec<InlayId>,
4258 to_insert: Vec<Inlay>,
4259 cx: &mut ViewContext<Self>,
4260 ) {
4261 self.display_map.update(cx, |display_map, cx| {
4262 display_map.splice_inlays(to_remove, to_insert, cx);
4263 });
4264 cx.notify();
4265 }
4266
4267 fn trigger_on_type_formatting(
4268 &self,
4269 input: String,
4270 cx: &mut ViewContext<Self>,
4271 ) -> Option<Task<Result<()>>> {
4272 if input.len() != 1 {
4273 return None;
4274 }
4275
4276 let project = self.project.as_ref()?;
4277 let position = self.selections.newest_anchor().head();
4278 let (buffer, buffer_position) = self
4279 .buffer
4280 .read(cx)
4281 .text_anchor_for_position(position, cx)?;
4282
4283 let settings = language_settings::language_settings(
4284 buffer
4285 .read(cx)
4286 .language_at(buffer_position)
4287 .map(|l| l.name()),
4288 buffer.read(cx).file(),
4289 cx,
4290 );
4291 if !settings.use_on_type_format {
4292 return None;
4293 }
4294
4295 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4296 // hence we do LSP request & edit on host side only — add formats to host's history.
4297 let push_to_lsp_host_history = true;
4298 // If this is not the host, append its history with new edits.
4299 let push_to_client_history = project.read(cx).is_via_collab();
4300
4301 let on_type_formatting = project.update(cx, |project, cx| {
4302 project.on_type_format(
4303 buffer.clone(),
4304 buffer_position,
4305 input,
4306 push_to_lsp_host_history,
4307 cx,
4308 )
4309 });
4310 Some(cx.spawn(|editor, mut cx| async move {
4311 if let Some(transaction) = on_type_formatting.await? {
4312 if push_to_client_history {
4313 buffer
4314 .update(&mut cx, |buffer, _| {
4315 buffer.push_transaction(transaction, Instant::now());
4316 })
4317 .ok();
4318 }
4319 editor.update(&mut cx, |editor, cx| {
4320 editor.refresh_document_highlights(cx);
4321 })?;
4322 }
4323 Ok(())
4324 }))
4325 }
4326
4327 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4328 if self.pending_rename.is_some() {
4329 return;
4330 }
4331
4332 let Some(provider) = self.completion_provider.as_ref() else {
4333 return;
4334 };
4335
4336 let position = self.selections.newest_anchor().head();
4337 let (buffer, buffer_position) =
4338 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4339 output
4340 } else {
4341 return;
4342 };
4343
4344 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4345 let is_followup_invoke = {
4346 let context_menu_state = self.context_menu.read();
4347 matches!(
4348 context_menu_state.deref(),
4349 Some(ContextMenu::Completions(_))
4350 )
4351 };
4352 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4353 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4354 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4355 CompletionTriggerKind::TRIGGER_CHARACTER
4356 }
4357
4358 _ => CompletionTriggerKind::INVOKED,
4359 };
4360 let completion_context = CompletionContext {
4361 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4362 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4363 Some(String::from(trigger))
4364 } else {
4365 None
4366 }
4367 }),
4368 trigger_kind,
4369 };
4370 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4371 let sort_completions = provider.sort_completions();
4372
4373 let id = post_inc(&mut self.next_completion_id);
4374 let task = cx.spawn(|this, mut cx| {
4375 async move {
4376 this.update(&mut cx, |this, _| {
4377 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4378 })?;
4379 let completions = completions.await.log_err();
4380 let menu = if let Some(completions) = completions {
4381 let mut menu = CompletionsMenu {
4382 id,
4383 sort_completions,
4384 initial_position: position,
4385 match_candidates: completions
4386 .iter()
4387 .enumerate()
4388 .map(|(id, completion)| {
4389 StringMatchCandidate::new(
4390 id,
4391 completion.label.text[completion.label.filter_range.clone()]
4392 .into(),
4393 )
4394 })
4395 .collect(),
4396 buffer: buffer.clone(),
4397 completions: Arc::new(RwLock::new(completions.into())),
4398 matches: Vec::new().into(),
4399 selected_item: 0,
4400 scroll_handle: UniformListScrollHandle::new(),
4401 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4402 DebouncedDelay::new(),
4403 )),
4404 };
4405 menu.filter(query.as_deref(), cx.background_executor().clone())
4406 .await;
4407
4408 if menu.matches.is_empty() {
4409 None
4410 } else {
4411 this.update(&mut cx, |editor, cx| {
4412 let completions = menu.completions.clone();
4413 let matches = menu.matches.clone();
4414
4415 let delay_ms = EditorSettings::get_global(cx)
4416 .completion_documentation_secondary_query_debounce;
4417 let delay = Duration::from_millis(delay_ms);
4418 editor
4419 .completion_documentation_pre_resolve_debounce
4420 .fire_new(delay, cx, |editor, cx| {
4421 CompletionsMenu::pre_resolve_completion_documentation(
4422 buffer,
4423 completions,
4424 matches,
4425 editor,
4426 cx,
4427 )
4428 });
4429 })
4430 .ok();
4431 Some(menu)
4432 }
4433 } else {
4434 None
4435 };
4436
4437 this.update(&mut cx, |this, cx| {
4438 let mut context_menu = this.context_menu.write();
4439 match context_menu.as_ref() {
4440 None => {}
4441
4442 Some(ContextMenu::Completions(prev_menu)) => {
4443 if prev_menu.id > id {
4444 return;
4445 }
4446 }
4447
4448 _ => return,
4449 }
4450
4451 if this.focus_handle.is_focused(cx) && menu.is_some() {
4452 let menu = menu.unwrap();
4453 *context_menu = Some(ContextMenu::Completions(menu));
4454 drop(context_menu);
4455 this.discard_inline_completion(false, cx);
4456 cx.notify();
4457 } else if this.completion_tasks.len() <= 1 {
4458 // If there are no more completion tasks and the last menu was
4459 // empty, we should hide it. If it was already hidden, we should
4460 // also show the copilot completion when available.
4461 drop(context_menu);
4462 if this.hide_context_menu(cx).is_none() {
4463 this.update_visible_inline_completion(cx);
4464 }
4465 }
4466 })?;
4467
4468 Ok::<_, anyhow::Error>(())
4469 }
4470 .log_err()
4471 });
4472
4473 self.completion_tasks.push((id, task));
4474 }
4475
4476 pub fn confirm_completion(
4477 &mut self,
4478 action: &ConfirmCompletion,
4479 cx: &mut ViewContext<Self>,
4480 ) -> Option<Task<Result<()>>> {
4481 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4482 }
4483
4484 pub fn compose_completion(
4485 &mut self,
4486 action: &ComposeCompletion,
4487 cx: &mut ViewContext<Self>,
4488 ) -> Option<Task<Result<()>>> {
4489 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4490 }
4491
4492 fn do_completion(
4493 &mut self,
4494 item_ix: Option<usize>,
4495 intent: CompletionIntent,
4496 cx: &mut ViewContext<Editor>,
4497 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4498 use language::ToOffset as _;
4499
4500 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4501 menu
4502 } else {
4503 return None;
4504 };
4505
4506 let mat = completions_menu
4507 .matches
4508 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4509 let buffer_handle = completions_menu.buffer;
4510 let completions = completions_menu.completions.read();
4511 let completion = completions.get(mat.candidate_id)?;
4512 cx.stop_propagation();
4513
4514 let snippet;
4515 let text;
4516
4517 if completion.is_snippet() {
4518 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4519 text = snippet.as_ref().unwrap().text.clone();
4520 } else {
4521 snippet = None;
4522 text = completion.new_text.clone();
4523 };
4524 let selections = self.selections.all::<usize>(cx);
4525 let buffer = buffer_handle.read(cx);
4526 let old_range = completion.old_range.to_offset(buffer);
4527 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4528
4529 let newest_selection = self.selections.newest_anchor();
4530 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4531 return None;
4532 }
4533
4534 let lookbehind = newest_selection
4535 .start
4536 .text_anchor
4537 .to_offset(buffer)
4538 .saturating_sub(old_range.start);
4539 let lookahead = old_range
4540 .end
4541 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4542 let mut common_prefix_len = old_text
4543 .bytes()
4544 .zip(text.bytes())
4545 .take_while(|(a, b)| a == b)
4546 .count();
4547
4548 let snapshot = self.buffer.read(cx).snapshot(cx);
4549 let mut range_to_replace: Option<Range<isize>> = None;
4550 let mut ranges = Vec::new();
4551 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4552 for selection in &selections {
4553 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4554 let start = selection.start.saturating_sub(lookbehind);
4555 let end = selection.end + lookahead;
4556 if selection.id == newest_selection.id {
4557 range_to_replace = Some(
4558 ((start + common_prefix_len) as isize - selection.start as isize)
4559 ..(end as isize - selection.start as isize),
4560 );
4561 }
4562 ranges.push(start + common_prefix_len..end);
4563 } else {
4564 common_prefix_len = 0;
4565 ranges.clear();
4566 ranges.extend(selections.iter().map(|s| {
4567 if s.id == newest_selection.id {
4568 range_to_replace = Some(
4569 old_range.start.to_offset_utf16(&snapshot).0 as isize
4570 - selection.start as isize
4571 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4572 - selection.start as isize,
4573 );
4574 old_range.clone()
4575 } else {
4576 s.start..s.end
4577 }
4578 }));
4579 break;
4580 }
4581 if !self.linked_edit_ranges.is_empty() {
4582 let start_anchor = snapshot.anchor_before(selection.head());
4583 let end_anchor = snapshot.anchor_after(selection.tail());
4584 if let Some(ranges) = self
4585 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4586 {
4587 for (buffer, edits) in ranges {
4588 linked_edits.entry(buffer.clone()).or_default().extend(
4589 edits
4590 .into_iter()
4591 .map(|range| (range, text[common_prefix_len..].to_owned())),
4592 );
4593 }
4594 }
4595 }
4596 }
4597 let text = &text[common_prefix_len..];
4598
4599 cx.emit(EditorEvent::InputHandled {
4600 utf16_range_to_replace: range_to_replace,
4601 text: text.into(),
4602 });
4603
4604 self.transact(cx, |this, cx| {
4605 if let Some(mut snippet) = snippet {
4606 snippet.text = text.to_string();
4607 for tabstop in snippet.tabstops.iter_mut().flatten() {
4608 tabstop.start -= common_prefix_len as isize;
4609 tabstop.end -= common_prefix_len as isize;
4610 }
4611
4612 this.insert_snippet(&ranges, snippet, cx).log_err();
4613 } else {
4614 this.buffer.update(cx, |buffer, cx| {
4615 buffer.edit(
4616 ranges.iter().map(|range| (range.clone(), text)),
4617 this.autoindent_mode.clone(),
4618 cx,
4619 );
4620 });
4621 }
4622 for (buffer, edits) in linked_edits {
4623 buffer.update(cx, |buffer, cx| {
4624 let snapshot = buffer.snapshot();
4625 let edits = edits
4626 .into_iter()
4627 .map(|(range, text)| {
4628 use text::ToPoint as TP;
4629 let end_point = TP::to_point(&range.end, &snapshot);
4630 let start_point = TP::to_point(&range.start, &snapshot);
4631 (start_point..end_point, text)
4632 })
4633 .sorted_by_key(|(range, _)| range.start)
4634 .collect::<Vec<_>>();
4635 buffer.edit(edits, None, cx);
4636 })
4637 }
4638
4639 this.refresh_inline_completion(true, false, cx);
4640 });
4641
4642 let show_new_completions_on_confirm = completion
4643 .confirm
4644 .as_ref()
4645 .map_or(false, |confirm| confirm(intent, cx));
4646 if show_new_completions_on_confirm {
4647 self.show_completions(&ShowCompletions { trigger: None }, cx);
4648 }
4649
4650 let provider = self.completion_provider.as_ref()?;
4651 let apply_edits = provider.apply_additional_edits_for_completion(
4652 buffer_handle,
4653 completion.clone(),
4654 true,
4655 cx,
4656 );
4657
4658 let editor_settings = EditorSettings::get_global(cx);
4659 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4660 // After the code completion is finished, users often want to know what signatures are needed.
4661 // so we should automatically call signature_help
4662 self.show_signature_help(&ShowSignatureHelp, cx);
4663 }
4664
4665 Some(cx.foreground_executor().spawn(async move {
4666 apply_edits.await?;
4667 Ok(())
4668 }))
4669 }
4670
4671 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4672 let mut context_menu = self.context_menu.write();
4673 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4674 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4675 // Toggle if we're selecting the same one
4676 *context_menu = None;
4677 cx.notify();
4678 return;
4679 } else {
4680 // Otherwise, clear it and start a new one
4681 *context_menu = None;
4682 cx.notify();
4683 }
4684 }
4685 drop(context_menu);
4686 let snapshot = self.snapshot(cx);
4687 let deployed_from_indicator = action.deployed_from_indicator;
4688 let mut task = self.code_actions_task.take();
4689 let action = action.clone();
4690 cx.spawn(|editor, mut cx| async move {
4691 while let Some(prev_task) = task {
4692 prev_task.await.log_err();
4693 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4694 }
4695
4696 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4697 if editor.focus_handle.is_focused(cx) {
4698 let multibuffer_point = action
4699 .deployed_from_indicator
4700 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4701 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4702 let (buffer, buffer_row) = snapshot
4703 .buffer_snapshot
4704 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4705 .and_then(|(buffer_snapshot, range)| {
4706 editor
4707 .buffer
4708 .read(cx)
4709 .buffer(buffer_snapshot.remote_id())
4710 .map(|buffer| (buffer, range.start.row))
4711 })?;
4712 let (_, code_actions) = editor
4713 .available_code_actions
4714 .clone()
4715 .and_then(|(location, code_actions)| {
4716 let snapshot = location.buffer.read(cx).snapshot();
4717 let point_range = location.range.to_point(&snapshot);
4718 let point_range = point_range.start.row..=point_range.end.row;
4719 if point_range.contains(&buffer_row) {
4720 Some((location, code_actions))
4721 } else {
4722 None
4723 }
4724 })
4725 .unzip();
4726 let buffer_id = buffer.read(cx).remote_id();
4727 let tasks = editor
4728 .tasks
4729 .get(&(buffer_id, buffer_row))
4730 .map(|t| Arc::new(t.to_owned()));
4731 if tasks.is_none() && code_actions.is_none() {
4732 return None;
4733 }
4734
4735 editor.completion_tasks.clear();
4736 editor.discard_inline_completion(false, cx);
4737 let task_context =
4738 tasks
4739 .as_ref()
4740 .zip(editor.project.clone())
4741 .map(|(tasks, project)| {
4742 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4743 });
4744
4745 Some(cx.spawn(|editor, mut cx| async move {
4746 let task_context = match task_context {
4747 Some(task_context) => task_context.await,
4748 None => None,
4749 };
4750 let resolved_tasks =
4751 tasks.zip(task_context).map(|(tasks, task_context)| {
4752 Arc::new(ResolvedTasks {
4753 templates: tasks.resolve(&task_context).collect(),
4754 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4755 multibuffer_point.row,
4756 tasks.column,
4757 )),
4758 })
4759 });
4760 let spawn_straight_away = resolved_tasks
4761 .as_ref()
4762 .map_or(false, |tasks| tasks.templates.len() == 1)
4763 && code_actions
4764 .as_ref()
4765 .map_or(true, |actions| actions.is_empty());
4766 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4767 *editor.context_menu.write() =
4768 Some(ContextMenu::CodeActions(CodeActionsMenu {
4769 buffer,
4770 actions: CodeActionContents {
4771 tasks: resolved_tasks,
4772 actions: code_actions,
4773 },
4774 selected_item: Default::default(),
4775 scroll_handle: UniformListScrollHandle::default(),
4776 deployed_from_indicator,
4777 }));
4778 if spawn_straight_away {
4779 if let Some(task) = editor.confirm_code_action(
4780 &ConfirmCodeAction { item_ix: Some(0) },
4781 cx,
4782 ) {
4783 cx.notify();
4784 return task;
4785 }
4786 }
4787 cx.notify();
4788 Task::ready(Ok(()))
4789 }) {
4790 task.await
4791 } else {
4792 Ok(())
4793 }
4794 }))
4795 } else {
4796 Some(Task::ready(Ok(())))
4797 }
4798 })?;
4799 if let Some(task) = spawned_test_task {
4800 task.await?;
4801 }
4802
4803 Ok::<_, anyhow::Error>(())
4804 })
4805 .detach_and_log_err(cx);
4806 }
4807
4808 pub fn confirm_code_action(
4809 &mut self,
4810 action: &ConfirmCodeAction,
4811 cx: &mut ViewContext<Self>,
4812 ) -> Option<Task<Result<()>>> {
4813 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4814 menu
4815 } else {
4816 return None;
4817 };
4818 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4819 let action = actions_menu.actions.get(action_ix)?;
4820 let title = action.label();
4821 let buffer = actions_menu.buffer;
4822 let workspace = self.workspace()?;
4823
4824 match action {
4825 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4826 workspace.update(cx, |workspace, cx| {
4827 workspace::tasks::schedule_resolved_task(
4828 workspace,
4829 task_source_kind,
4830 resolved_task,
4831 false,
4832 cx,
4833 );
4834
4835 Some(Task::ready(Ok(())))
4836 })
4837 }
4838 CodeActionsItem::CodeAction {
4839 excerpt_id,
4840 action,
4841 provider,
4842 } => {
4843 let apply_code_action =
4844 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4845 let workspace = workspace.downgrade();
4846 Some(cx.spawn(|editor, cx| async move {
4847 let project_transaction = apply_code_action.await?;
4848 Self::open_project_transaction(
4849 &editor,
4850 workspace,
4851 project_transaction,
4852 title,
4853 cx,
4854 )
4855 .await
4856 }))
4857 }
4858 }
4859 }
4860
4861 pub async fn open_project_transaction(
4862 this: &WeakView<Editor>,
4863 workspace: WeakView<Workspace>,
4864 transaction: ProjectTransaction,
4865 title: String,
4866 mut cx: AsyncWindowContext,
4867 ) -> Result<()> {
4868 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4869 cx.update(|cx| {
4870 entries.sort_unstable_by_key(|(buffer, _)| {
4871 buffer.read(cx).file().map(|f| f.path().clone())
4872 });
4873 })?;
4874
4875 // If the project transaction's edits are all contained within this editor, then
4876 // avoid opening a new editor to display them.
4877
4878 if let Some((buffer, transaction)) = entries.first() {
4879 if entries.len() == 1 {
4880 let excerpt = this.update(&mut cx, |editor, cx| {
4881 editor
4882 .buffer()
4883 .read(cx)
4884 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4885 })?;
4886 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4887 if excerpted_buffer == *buffer {
4888 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4889 let excerpt_range = excerpt_range.to_offset(buffer);
4890 buffer
4891 .edited_ranges_for_transaction::<usize>(transaction)
4892 .all(|range| {
4893 excerpt_range.start <= range.start
4894 && excerpt_range.end >= range.end
4895 })
4896 })?;
4897
4898 if all_edits_within_excerpt {
4899 return Ok(());
4900 }
4901 }
4902 }
4903 }
4904 } else {
4905 return Ok(());
4906 }
4907
4908 let mut ranges_to_highlight = Vec::new();
4909 let excerpt_buffer = cx.new_model(|cx| {
4910 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4911 for (buffer_handle, transaction) in &entries {
4912 let buffer = buffer_handle.read(cx);
4913 ranges_to_highlight.extend(
4914 multibuffer.push_excerpts_with_context_lines(
4915 buffer_handle.clone(),
4916 buffer
4917 .edited_ranges_for_transaction::<usize>(transaction)
4918 .collect(),
4919 DEFAULT_MULTIBUFFER_CONTEXT,
4920 cx,
4921 ),
4922 );
4923 }
4924 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4925 multibuffer
4926 })?;
4927
4928 workspace.update(&mut cx, |workspace, cx| {
4929 let project = workspace.project().clone();
4930 let editor =
4931 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4932 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4933 editor.update(cx, |editor, cx| {
4934 editor.highlight_background::<Self>(
4935 &ranges_to_highlight,
4936 |theme| theme.editor_highlighted_line_background,
4937 cx,
4938 );
4939 });
4940 })?;
4941
4942 Ok(())
4943 }
4944
4945 pub fn clear_code_action_providers(&mut self) {
4946 self.code_action_providers.clear();
4947 self.available_code_actions.take();
4948 }
4949
4950 pub fn push_code_action_provider(
4951 &mut self,
4952 provider: Arc<dyn CodeActionProvider>,
4953 cx: &mut ViewContext<Self>,
4954 ) {
4955 self.code_action_providers.push(provider);
4956 self.refresh_code_actions(cx);
4957 }
4958
4959 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4960 let buffer = self.buffer.read(cx);
4961 let newest_selection = self.selections.newest_anchor().clone();
4962 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4963 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4964 if start_buffer != end_buffer {
4965 return None;
4966 }
4967
4968 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4969 cx.background_executor()
4970 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4971 .await;
4972
4973 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4974 let providers = this.code_action_providers.clone();
4975 let tasks = this
4976 .code_action_providers
4977 .iter()
4978 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4979 .collect::<Vec<_>>();
4980 (providers, tasks)
4981 })?;
4982
4983 let mut actions = Vec::new();
4984 for (provider, provider_actions) in
4985 providers.into_iter().zip(future::join_all(tasks).await)
4986 {
4987 if let Some(provider_actions) = provider_actions.log_err() {
4988 actions.extend(provider_actions.into_iter().map(|action| {
4989 AvailableCodeAction {
4990 excerpt_id: newest_selection.start.excerpt_id,
4991 action,
4992 provider: provider.clone(),
4993 }
4994 }));
4995 }
4996 }
4997
4998 this.update(&mut cx, |this, cx| {
4999 this.available_code_actions = if actions.is_empty() {
5000 None
5001 } else {
5002 Some((
5003 Location {
5004 buffer: start_buffer,
5005 range: start..end,
5006 },
5007 actions.into(),
5008 ))
5009 };
5010 cx.notify();
5011 })
5012 }));
5013 None
5014 }
5015
5016 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5017 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5018 self.show_git_blame_inline = false;
5019
5020 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5021 cx.background_executor().timer(delay).await;
5022
5023 this.update(&mut cx, |this, cx| {
5024 this.show_git_blame_inline = true;
5025 cx.notify();
5026 })
5027 .log_err();
5028 }));
5029 }
5030 }
5031
5032 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5033 if self.pending_rename.is_some() {
5034 return None;
5035 }
5036
5037 let provider = self.semantics_provider.clone()?;
5038 let buffer = self.buffer.read(cx);
5039 let newest_selection = self.selections.newest_anchor().clone();
5040 let cursor_position = newest_selection.head();
5041 let (cursor_buffer, cursor_buffer_position) =
5042 buffer.text_anchor_for_position(cursor_position, cx)?;
5043 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5044 if cursor_buffer != tail_buffer {
5045 return None;
5046 }
5047
5048 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5049 cx.background_executor()
5050 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5051 .await;
5052
5053 let highlights = if let Some(highlights) = cx
5054 .update(|cx| {
5055 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5056 })
5057 .ok()
5058 .flatten()
5059 {
5060 highlights.await.log_err()
5061 } else {
5062 None
5063 };
5064
5065 if let Some(highlights) = highlights {
5066 this.update(&mut cx, |this, cx| {
5067 if this.pending_rename.is_some() {
5068 return;
5069 }
5070
5071 let buffer_id = cursor_position.buffer_id;
5072 let buffer = this.buffer.read(cx);
5073 if !buffer
5074 .text_anchor_for_position(cursor_position, cx)
5075 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5076 {
5077 return;
5078 }
5079
5080 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5081 let mut write_ranges = Vec::new();
5082 let mut read_ranges = Vec::new();
5083 for highlight in highlights {
5084 for (excerpt_id, excerpt_range) in
5085 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5086 {
5087 let start = highlight
5088 .range
5089 .start
5090 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5091 let end = highlight
5092 .range
5093 .end
5094 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5095 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5096 continue;
5097 }
5098
5099 let range = Anchor {
5100 buffer_id,
5101 excerpt_id,
5102 text_anchor: start,
5103 }..Anchor {
5104 buffer_id,
5105 excerpt_id,
5106 text_anchor: end,
5107 };
5108 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5109 write_ranges.push(range);
5110 } else {
5111 read_ranges.push(range);
5112 }
5113 }
5114 }
5115
5116 this.highlight_background::<DocumentHighlightRead>(
5117 &read_ranges,
5118 |theme| theme.editor_document_highlight_read_background,
5119 cx,
5120 );
5121 this.highlight_background::<DocumentHighlightWrite>(
5122 &write_ranges,
5123 |theme| theme.editor_document_highlight_write_background,
5124 cx,
5125 );
5126 cx.notify();
5127 })
5128 .log_err();
5129 }
5130 }));
5131 None
5132 }
5133
5134 pub fn refresh_inline_completion(
5135 &mut self,
5136 debounce: bool,
5137 user_requested: bool,
5138 cx: &mut ViewContext<Self>,
5139 ) -> Option<()> {
5140 let provider = self.inline_completion_provider()?;
5141 let cursor = self.selections.newest_anchor().head();
5142 let (buffer, cursor_buffer_position) =
5143 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5144
5145 if !user_requested
5146 && (!self.enable_inline_completions
5147 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5148 {
5149 self.discard_inline_completion(false, cx);
5150 return None;
5151 }
5152
5153 self.update_visible_inline_completion(cx);
5154 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5155 Some(())
5156 }
5157
5158 fn cycle_inline_completion(
5159 &mut self,
5160 direction: Direction,
5161 cx: &mut ViewContext<Self>,
5162 ) -> Option<()> {
5163 let provider = self.inline_completion_provider()?;
5164 let cursor = self.selections.newest_anchor().head();
5165 let (buffer, cursor_buffer_position) =
5166 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5167 if !self.enable_inline_completions
5168 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5169 {
5170 return None;
5171 }
5172
5173 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5174 self.update_visible_inline_completion(cx);
5175
5176 Some(())
5177 }
5178
5179 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5180 if !self.has_active_inline_completion(cx) {
5181 self.refresh_inline_completion(false, true, cx);
5182 return;
5183 }
5184
5185 self.update_visible_inline_completion(cx);
5186 }
5187
5188 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5189 self.show_cursor_names(cx);
5190 }
5191
5192 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5193 self.show_cursor_names = true;
5194 cx.notify();
5195 cx.spawn(|this, mut cx| async move {
5196 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5197 this.update(&mut cx, |this, cx| {
5198 this.show_cursor_names = false;
5199 cx.notify()
5200 })
5201 .ok()
5202 })
5203 .detach();
5204 }
5205
5206 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5207 if self.has_active_inline_completion(cx) {
5208 self.cycle_inline_completion(Direction::Next, cx);
5209 } else {
5210 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5211 if is_copilot_disabled {
5212 cx.propagate();
5213 }
5214 }
5215 }
5216
5217 pub fn previous_inline_completion(
5218 &mut self,
5219 _: &PreviousInlineCompletion,
5220 cx: &mut ViewContext<Self>,
5221 ) {
5222 if self.has_active_inline_completion(cx) {
5223 self.cycle_inline_completion(Direction::Prev, cx);
5224 } else {
5225 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5226 if is_copilot_disabled {
5227 cx.propagate();
5228 }
5229 }
5230 }
5231
5232 pub fn accept_inline_completion(
5233 &mut self,
5234 _: &AcceptInlineCompletion,
5235 cx: &mut ViewContext<Self>,
5236 ) {
5237 let Some(completion) = self.take_active_inline_completion(cx) else {
5238 return;
5239 };
5240 if let Some(provider) = self.inline_completion_provider() {
5241 provider.accept(cx);
5242 }
5243
5244 cx.emit(EditorEvent::InputHandled {
5245 utf16_range_to_replace: None,
5246 text: completion.text.to_string().into(),
5247 });
5248
5249 if let Some(range) = completion.delete_range {
5250 self.change_selections(None, cx, |s| s.select_ranges([range]))
5251 }
5252 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5253 self.refresh_inline_completion(true, true, cx);
5254 cx.notify();
5255 }
5256
5257 pub fn accept_partial_inline_completion(
5258 &mut self,
5259 _: &AcceptPartialInlineCompletion,
5260 cx: &mut ViewContext<Self>,
5261 ) {
5262 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5263 if let Some(completion) = self.take_active_inline_completion(cx) {
5264 let mut partial_completion = completion
5265 .text
5266 .chars()
5267 .by_ref()
5268 .take_while(|c| c.is_alphabetic())
5269 .collect::<String>();
5270 if partial_completion.is_empty() {
5271 partial_completion = completion
5272 .text
5273 .chars()
5274 .by_ref()
5275 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5276 .collect::<String>();
5277 }
5278
5279 cx.emit(EditorEvent::InputHandled {
5280 utf16_range_to_replace: None,
5281 text: partial_completion.clone().into(),
5282 });
5283
5284 if let Some(range) = completion.delete_range {
5285 self.change_selections(None, cx, |s| s.select_ranges([range]))
5286 }
5287 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5288
5289 self.refresh_inline_completion(true, true, cx);
5290 cx.notify();
5291 }
5292 }
5293 }
5294
5295 fn discard_inline_completion(
5296 &mut self,
5297 should_report_inline_completion_event: bool,
5298 cx: &mut ViewContext<Self>,
5299 ) -> bool {
5300 if let Some(provider) = self.inline_completion_provider() {
5301 provider.discard(should_report_inline_completion_event, cx);
5302 }
5303
5304 self.take_active_inline_completion(cx).is_some()
5305 }
5306
5307 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5308 if let Some(completion) = self.active_inline_completion.as_ref() {
5309 let buffer = self.buffer.read(cx).read(cx);
5310 completion.position.is_valid(&buffer)
5311 } else {
5312 false
5313 }
5314 }
5315
5316 fn take_active_inline_completion(
5317 &mut self,
5318 cx: &mut ViewContext<Self>,
5319 ) -> Option<CompletionState> {
5320 let completion = self.active_inline_completion.take()?;
5321 let render_inlay_ids = completion.render_inlay_ids.clone();
5322 self.display_map.update(cx, |map, cx| {
5323 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5324 });
5325 let buffer = self.buffer.read(cx).read(cx);
5326
5327 if completion.position.is_valid(&buffer) {
5328 Some(completion)
5329 } else {
5330 None
5331 }
5332 }
5333
5334 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5335 let selection = self.selections.newest_anchor();
5336 let cursor = selection.head();
5337
5338 let excerpt_id = cursor.excerpt_id;
5339
5340 if self.context_menu.read().is_none()
5341 && self.completion_tasks.is_empty()
5342 && selection.start == selection.end
5343 {
5344 if let Some(provider) = self.inline_completion_provider() {
5345 if let Some((buffer, cursor_buffer_position)) =
5346 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5347 {
5348 if let Some(proposal) =
5349 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5350 {
5351 let mut to_remove = Vec::new();
5352 if let Some(completion) = self.active_inline_completion.take() {
5353 to_remove.extend(completion.render_inlay_ids.iter());
5354 }
5355
5356 let to_add = proposal
5357 .inlays
5358 .iter()
5359 .filter_map(|inlay| {
5360 let snapshot = self.buffer.read(cx).snapshot(cx);
5361 let id = post_inc(&mut self.next_inlay_id);
5362 match inlay {
5363 InlayProposal::Hint(position, hint) => {
5364 let position =
5365 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5366 Some(Inlay::hint(id, position, hint))
5367 }
5368 InlayProposal::Suggestion(position, text) => {
5369 let position =
5370 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5371 Some(Inlay::suggestion(id, position, text.clone()))
5372 }
5373 }
5374 })
5375 .collect_vec();
5376
5377 self.active_inline_completion = Some(CompletionState {
5378 position: cursor,
5379 text: proposal.text,
5380 delete_range: proposal.delete_range.and_then(|range| {
5381 let snapshot = self.buffer.read(cx).snapshot(cx);
5382 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5383 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5384 Some(start?..end?)
5385 }),
5386 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5387 });
5388
5389 self.display_map
5390 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5391
5392 cx.notify();
5393 return;
5394 }
5395 }
5396 }
5397 }
5398
5399 self.discard_inline_completion(false, cx);
5400 }
5401
5402 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5403 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5404 }
5405
5406 fn render_code_actions_indicator(
5407 &self,
5408 _style: &EditorStyle,
5409 row: DisplayRow,
5410 is_active: bool,
5411 cx: &mut ViewContext<Self>,
5412 ) -> Option<IconButton> {
5413 if self.available_code_actions.is_some() {
5414 Some(
5415 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5416 .shape(ui::IconButtonShape::Square)
5417 .icon_size(IconSize::XSmall)
5418 .icon_color(Color::Muted)
5419 .selected(is_active)
5420 .tooltip({
5421 let focus_handle = self.focus_handle.clone();
5422 move |cx| {
5423 Tooltip::for_action_in(
5424 "Toggle Code Actions",
5425 &ToggleCodeActions {
5426 deployed_from_indicator: None,
5427 },
5428 &focus_handle,
5429 cx,
5430 )
5431 }
5432 })
5433 .on_click(cx.listener(move |editor, _e, cx| {
5434 editor.focus(cx);
5435 editor.toggle_code_actions(
5436 &ToggleCodeActions {
5437 deployed_from_indicator: Some(row),
5438 },
5439 cx,
5440 );
5441 })),
5442 )
5443 } else {
5444 None
5445 }
5446 }
5447
5448 fn clear_tasks(&mut self) {
5449 self.tasks.clear()
5450 }
5451
5452 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5453 if self.tasks.insert(key, value).is_some() {
5454 // This case should hopefully be rare, but just in case...
5455 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5456 }
5457 }
5458
5459 fn build_tasks_context(
5460 project: &Model<Project>,
5461 buffer: &Model<Buffer>,
5462 buffer_row: u32,
5463 tasks: &Arc<RunnableTasks>,
5464 cx: &mut ViewContext<Self>,
5465 ) -> Task<Option<task::TaskContext>> {
5466 let position = Point::new(buffer_row, tasks.column);
5467 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5468 let location = Location {
5469 buffer: buffer.clone(),
5470 range: range_start..range_start,
5471 };
5472 // Fill in the environmental variables from the tree-sitter captures
5473 let mut captured_task_variables = TaskVariables::default();
5474 for (capture_name, value) in tasks.extra_variables.clone() {
5475 captured_task_variables.insert(
5476 task::VariableName::Custom(capture_name.into()),
5477 value.clone(),
5478 );
5479 }
5480 project.update(cx, |project, cx| {
5481 project.task_store().update(cx, |task_store, cx| {
5482 task_store.task_context_for_location(captured_task_variables, location, cx)
5483 })
5484 })
5485 }
5486
5487 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5488 let Some((workspace, _)) = self.workspace.clone() else {
5489 return;
5490 };
5491 let Some(project) = self.project.clone() else {
5492 return;
5493 };
5494
5495 // Try to find a closest, enclosing node using tree-sitter that has a
5496 // task
5497 let Some((buffer, buffer_row, tasks)) = self
5498 .find_enclosing_node_task(cx)
5499 // Or find the task that's closest in row-distance.
5500 .or_else(|| self.find_closest_task(cx))
5501 else {
5502 return;
5503 };
5504
5505 let reveal_strategy = action.reveal;
5506 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5507 cx.spawn(|_, mut cx| async move {
5508 let context = task_context.await?;
5509 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5510
5511 let resolved = resolved_task.resolved.as_mut()?;
5512 resolved.reveal = reveal_strategy;
5513
5514 workspace
5515 .update(&mut cx, |workspace, cx| {
5516 workspace::tasks::schedule_resolved_task(
5517 workspace,
5518 task_source_kind,
5519 resolved_task,
5520 false,
5521 cx,
5522 );
5523 })
5524 .ok()
5525 })
5526 .detach();
5527 }
5528
5529 fn find_closest_task(
5530 &mut self,
5531 cx: &mut ViewContext<Self>,
5532 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5533 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5534
5535 let ((buffer_id, row), tasks) = self
5536 .tasks
5537 .iter()
5538 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5539
5540 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5541 let tasks = Arc::new(tasks.to_owned());
5542 Some((buffer, *row, tasks))
5543 }
5544
5545 fn find_enclosing_node_task(
5546 &mut self,
5547 cx: &mut ViewContext<Self>,
5548 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5549 let snapshot = self.buffer.read(cx).snapshot(cx);
5550 let offset = self.selections.newest::<usize>(cx).head();
5551 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5552 let buffer_id = excerpt.buffer().remote_id();
5553
5554 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5555 let mut cursor = layer.node().walk();
5556
5557 while cursor.goto_first_child_for_byte(offset).is_some() {
5558 if cursor.node().end_byte() == offset {
5559 cursor.goto_next_sibling();
5560 }
5561 }
5562
5563 // Ascend to the smallest ancestor that contains the range and has a task.
5564 loop {
5565 let node = cursor.node();
5566 let node_range = node.byte_range();
5567 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5568
5569 // Check if this node contains our offset
5570 if node_range.start <= offset && node_range.end >= offset {
5571 // If it contains offset, check for task
5572 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5573 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5574 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5575 }
5576 }
5577
5578 if !cursor.goto_parent() {
5579 break;
5580 }
5581 }
5582 None
5583 }
5584
5585 fn render_run_indicator(
5586 &self,
5587 _style: &EditorStyle,
5588 is_active: bool,
5589 row: DisplayRow,
5590 cx: &mut ViewContext<Self>,
5591 ) -> IconButton {
5592 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5593 .shape(ui::IconButtonShape::Square)
5594 .icon_size(IconSize::XSmall)
5595 .icon_color(Color::Muted)
5596 .selected(is_active)
5597 .on_click(cx.listener(move |editor, _e, cx| {
5598 editor.focus(cx);
5599 editor.toggle_code_actions(
5600 &ToggleCodeActions {
5601 deployed_from_indicator: Some(row),
5602 },
5603 cx,
5604 );
5605 }))
5606 }
5607
5608 pub fn context_menu_visible(&self) -> bool {
5609 self.context_menu
5610 .read()
5611 .as_ref()
5612 .map_or(false, |menu| menu.visible())
5613 }
5614
5615 fn render_context_menu(
5616 &self,
5617 cursor_position: DisplayPoint,
5618 style: &EditorStyle,
5619 max_height: Pixels,
5620 cx: &mut ViewContext<Editor>,
5621 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5622 self.context_menu.read().as_ref().map(|menu| {
5623 menu.render(
5624 cursor_position,
5625 style,
5626 max_height,
5627 self.workspace.as_ref().map(|(w, _)| w.clone()),
5628 cx,
5629 )
5630 })
5631 }
5632
5633 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5634 cx.notify();
5635 self.completion_tasks.clear();
5636 let context_menu = self.context_menu.write().take();
5637 if context_menu.is_some() {
5638 self.update_visible_inline_completion(cx);
5639 }
5640 context_menu
5641 }
5642
5643 pub fn insert_snippet(
5644 &mut self,
5645 insertion_ranges: &[Range<usize>],
5646 snippet: Snippet,
5647 cx: &mut ViewContext<Self>,
5648 ) -> Result<()> {
5649 struct Tabstop<T> {
5650 is_end_tabstop: bool,
5651 ranges: Vec<Range<T>>,
5652 }
5653
5654 let tabstops = self.buffer.update(cx, |buffer, cx| {
5655 let snippet_text: Arc<str> = snippet.text.clone().into();
5656 buffer.edit(
5657 insertion_ranges
5658 .iter()
5659 .cloned()
5660 .map(|range| (range, snippet_text.clone())),
5661 Some(AutoindentMode::EachLine),
5662 cx,
5663 );
5664
5665 let snapshot = &*buffer.read(cx);
5666 let snippet = &snippet;
5667 snippet
5668 .tabstops
5669 .iter()
5670 .map(|tabstop| {
5671 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5672 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5673 });
5674 let mut tabstop_ranges = tabstop
5675 .iter()
5676 .flat_map(|tabstop_range| {
5677 let mut delta = 0_isize;
5678 insertion_ranges.iter().map(move |insertion_range| {
5679 let insertion_start = insertion_range.start as isize + delta;
5680 delta +=
5681 snippet.text.len() as isize - insertion_range.len() as isize;
5682
5683 let start = ((insertion_start + tabstop_range.start) as usize)
5684 .min(snapshot.len());
5685 let end = ((insertion_start + tabstop_range.end) as usize)
5686 .min(snapshot.len());
5687 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5688 })
5689 })
5690 .collect::<Vec<_>>();
5691 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5692
5693 Tabstop {
5694 is_end_tabstop,
5695 ranges: tabstop_ranges,
5696 }
5697 })
5698 .collect::<Vec<_>>()
5699 });
5700 if let Some(tabstop) = tabstops.first() {
5701 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5702 s.select_ranges(tabstop.ranges.iter().cloned());
5703 });
5704
5705 // If we're already at the last tabstop and it's at the end of the snippet,
5706 // we're done, we don't need to keep the state around.
5707 if !tabstop.is_end_tabstop {
5708 let ranges = tabstops
5709 .into_iter()
5710 .map(|tabstop| tabstop.ranges)
5711 .collect::<Vec<_>>();
5712 self.snippet_stack.push(SnippetState {
5713 active_index: 0,
5714 ranges,
5715 });
5716 }
5717
5718 // Check whether the just-entered snippet ends with an auto-closable bracket.
5719 if self.autoclose_regions.is_empty() {
5720 let snapshot = self.buffer.read(cx).snapshot(cx);
5721 for selection in &mut self.selections.all::<Point>(cx) {
5722 let selection_head = selection.head();
5723 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5724 continue;
5725 };
5726
5727 let mut bracket_pair = None;
5728 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5729 let prev_chars = snapshot
5730 .reversed_chars_at(selection_head)
5731 .collect::<String>();
5732 for (pair, enabled) in scope.brackets() {
5733 if enabled
5734 && pair.close
5735 && prev_chars.starts_with(pair.start.as_str())
5736 && next_chars.starts_with(pair.end.as_str())
5737 {
5738 bracket_pair = Some(pair.clone());
5739 break;
5740 }
5741 }
5742 if let Some(pair) = bracket_pair {
5743 let start = snapshot.anchor_after(selection_head);
5744 let end = snapshot.anchor_after(selection_head);
5745 self.autoclose_regions.push(AutocloseRegion {
5746 selection_id: selection.id,
5747 range: start..end,
5748 pair,
5749 });
5750 }
5751 }
5752 }
5753 }
5754 Ok(())
5755 }
5756
5757 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5758 self.move_to_snippet_tabstop(Bias::Right, cx)
5759 }
5760
5761 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5762 self.move_to_snippet_tabstop(Bias::Left, cx)
5763 }
5764
5765 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5766 if let Some(mut snippet) = self.snippet_stack.pop() {
5767 match bias {
5768 Bias::Left => {
5769 if snippet.active_index > 0 {
5770 snippet.active_index -= 1;
5771 } else {
5772 self.snippet_stack.push(snippet);
5773 return false;
5774 }
5775 }
5776 Bias::Right => {
5777 if snippet.active_index + 1 < snippet.ranges.len() {
5778 snippet.active_index += 1;
5779 } else {
5780 self.snippet_stack.push(snippet);
5781 return false;
5782 }
5783 }
5784 }
5785 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5786 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5787 s.select_anchor_ranges(current_ranges.iter().cloned())
5788 });
5789 // If snippet state is not at the last tabstop, push it back on the stack
5790 if snippet.active_index + 1 < snippet.ranges.len() {
5791 self.snippet_stack.push(snippet);
5792 }
5793 return true;
5794 }
5795 }
5796
5797 false
5798 }
5799
5800 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5801 self.transact(cx, |this, cx| {
5802 this.select_all(&SelectAll, cx);
5803 this.insert("", cx);
5804 });
5805 }
5806
5807 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5808 self.transact(cx, |this, cx| {
5809 this.select_autoclose_pair(cx);
5810 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5811 if !this.linked_edit_ranges.is_empty() {
5812 let selections = this.selections.all::<MultiBufferPoint>(cx);
5813 let snapshot = this.buffer.read(cx).snapshot(cx);
5814
5815 for selection in selections.iter() {
5816 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5817 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5818 if selection_start.buffer_id != selection_end.buffer_id {
5819 continue;
5820 }
5821 if let Some(ranges) =
5822 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5823 {
5824 for (buffer, entries) in ranges {
5825 linked_ranges.entry(buffer).or_default().extend(entries);
5826 }
5827 }
5828 }
5829 }
5830
5831 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5832 if !this.selections.line_mode {
5833 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5834 for selection in &mut selections {
5835 if selection.is_empty() {
5836 let old_head = selection.head();
5837 let mut new_head =
5838 movement::left(&display_map, old_head.to_display_point(&display_map))
5839 .to_point(&display_map);
5840 if let Some((buffer, line_buffer_range)) = display_map
5841 .buffer_snapshot
5842 .buffer_line_for_row(MultiBufferRow(old_head.row))
5843 {
5844 let indent_size =
5845 buffer.indent_size_for_line(line_buffer_range.start.row);
5846 let indent_len = match indent_size.kind {
5847 IndentKind::Space => {
5848 buffer.settings_at(line_buffer_range.start, cx).tab_size
5849 }
5850 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5851 };
5852 if old_head.column <= indent_size.len && old_head.column > 0 {
5853 let indent_len = indent_len.get();
5854 new_head = cmp::min(
5855 new_head,
5856 MultiBufferPoint::new(
5857 old_head.row,
5858 ((old_head.column - 1) / indent_len) * indent_len,
5859 ),
5860 );
5861 }
5862 }
5863
5864 selection.set_head(new_head, SelectionGoal::None);
5865 }
5866 }
5867 }
5868
5869 this.signature_help_state.set_backspace_pressed(true);
5870 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5871 this.insert("", cx);
5872 let empty_str: Arc<str> = Arc::from("");
5873 for (buffer, edits) in linked_ranges {
5874 let snapshot = buffer.read(cx).snapshot();
5875 use text::ToPoint as TP;
5876
5877 let edits = edits
5878 .into_iter()
5879 .map(|range| {
5880 let end_point = TP::to_point(&range.end, &snapshot);
5881 let mut start_point = TP::to_point(&range.start, &snapshot);
5882
5883 if end_point == start_point {
5884 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5885 .saturating_sub(1);
5886 start_point = TP::to_point(&offset, &snapshot);
5887 };
5888
5889 (start_point..end_point, empty_str.clone())
5890 })
5891 .sorted_by_key(|(range, _)| range.start)
5892 .collect::<Vec<_>>();
5893 buffer.update(cx, |this, cx| {
5894 this.edit(edits, None, cx);
5895 })
5896 }
5897 this.refresh_inline_completion(true, false, cx);
5898 linked_editing_ranges::refresh_linked_ranges(this, cx);
5899 });
5900 }
5901
5902 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5903 self.transact(cx, |this, cx| {
5904 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5905 let line_mode = s.line_mode;
5906 s.move_with(|map, selection| {
5907 if selection.is_empty() && !line_mode {
5908 let cursor = movement::right(map, selection.head());
5909 selection.end = cursor;
5910 selection.reversed = true;
5911 selection.goal = SelectionGoal::None;
5912 }
5913 })
5914 });
5915 this.insert("", cx);
5916 this.refresh_inline_completion(true, false, cx);
5917 });
5918 }
5919
5920 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5921 if self.move_to_prev_snippet_tabstop(cx) {
5922 return;
5923 }
5924
5925 self.outdent(&Outdent, cx);
5926 }
5927
5928 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5929 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5930 return;
5931 }
5932
5933 let mut selections = self.selections.all_adjusted(cx);
5934 let buffer = self.buffer.read(cx);
5935 let snapshot = buffer.snapshot(cx);
5936 let rows_iter = selections.iter().map(|s| s.head().row);
5937 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5938
5939 let mut edits = Vec::new();
5940 let mut prev_edited_row = 0;
5941 let mut row_delta = 0;
5942 for selection in &mut selections {
5943 if selection.start.row != prev_edited_row {
5944 row_delta = 0;
5945 }
5946 prev_edited_row = selection.end.row;
5947
5948 // If the selection is non-empty, then increase the indentation of the selected lines.
5949 if !selection.is_empty() {
5950 row_delta =
5951 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5952 continue;
5953 }
5954
5955 // If the selection is empty and the cursor is in the leading whitespace before the
5956 // suggested indentation, then auto-indent the line.
5957 let cursor = selection.head();
5958 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5959 if let Some(suggested_indent) =
5960 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5961 {
5962 if cursor.column < suggested_indent.len
5963 && cursor.column <= current_indent.len
5964 && current_indent.len <= suggested_indent.len
5965 {
5966 selection.start = Point::new(cursor.row, suggested_indent.len);
5967 selection.end = selection.start;
5968 if row_delta == 0 {
5969 edits.extend(Buffer::edit_for_indent_size_adjustment(
5970 cursor.row,
5971 current_indent,
5972 suggested_indent,
5973 ));
5974 row_delta = suggested_indent.len - current_indent.len;
5975 }
5976 continue;
5977 }
5978 }
5979
5980 // Otherwise, insert a hard or soft tab.
5981 let settings = buffer.settings_at(cursor, cx);
5982 let tab_size = if settings.hard_tabs {
5983 IndentSize::tab()
5984 } else {
5985 let tab_size = settings.tab_size.get();
5986 let char_column = snapshot
5987 .text_for_range(Point::new(cursor.row, 0)..cursor)
5988 .flat_map(str::chars)
5989 .count()
5990 + row_delta as usize;
5991 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5992 IndentSize::spaces(chars_to_next_tab_stop)
5993 };
5994 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5995 selection.end = selection.start;
5996 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5997 row_delta += tab_size.len;
5998 }
5999
6000 self.transact(cx, |this, cx| {
6001 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6002 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6003 this.refresh_inline_completion(true, false, cx);
6004 });
6005 }
6006
6007 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
6008 if self.read_only(cx) {
6009 return;
6010 }
6011 let mut selections = self.selections.all::<Point>(cx);
6012 let mut prev_edited_row = 0;
6013 let mut row_delta = 0;
6014 let mut edits = Vec::new();
6015 let buffer = self.buffer.read(cx);
6016 let snapshot = buffer.snapshot(cx);
6017 for selection in &mut selections {
6018 if selection.start.row != prev_edited_row {
6019 row_delta = 0;
6020 }
6021 prev_edited_row = selection.end.row;
6022
6023 row_delta =
6024 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6025 }
6026
6027 self.transact(cx, |this, cx| {
6028 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6029 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6030 });
6031 }
6032
6033 fn indent_selection(
6034 buffer: &MultiBuffer,
6035 snapshot: &MultiBufferSnapshot,
6036 selection: &mut Selection<Point>,
6037 edits: &mut Vec<(Range<Point>, String)>,
6038 delta_for_start_row: u32,
6039 cx: &AppContext,
6040 ) -> u32 {
6041 let settings = buffer.settings_at(selection.start, cx);
6042 let tab_size = settings.tab_size.get();
6043 let indent_kind = if settings.hard_tabs {
6044 IndentKind::Tab
6045 } else {
6046 IndentKind::Space
6047 };
6048 let mut start_row = selection.start.row;
6049 let mut end_row = selection.end.row + 1;
6050
6051 // If a selection ends at the beginning of a line, don't indent
6052 // that last line.
6053 if selection.end.column == 0 && selection.end.row > selection.start.row {
6054 end_row -= 1;
6055 }
6056
6057 // Avoid re-indenting a row that has already been indented by a
6058 // previous selection, but still update this selection's column
6059 // to reflect that indentation.
6060 if delta_for_start_row > 0 {
6061 start_row += 1;
6062 selection.start.column += delta_for_start_row;
6063 if selection.end.row == selection.start.row {
6064 selection.end.column += delta_for_start_row;
6065 }
6066 }
6067
6068 let mut delta_for_end_row = 0;
6069 let has_multiple_rows = start_row + 1 != end_row;
6070 for row in start_row..end_row {
6071 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6072 let indent_delta = match (current_indent.kind, indent_kind) {
6073 (IndentKind::Space, IndentKind::Space) => {
6074 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6075 IndentSize::spaces(columns_to_next_tab_stop)
6076 }
6077 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6078 (_, IndentKind::Tab) => IndentSize::tab(),
6079 };
6080
6081 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6082 0
6083 } else {
6084 selection.start.column
6085 };
6086 let row_start = Point::new(row, start);
6087 edits.push((
6088 row_start..row_start,
6089 indent_delta.chars().collect::<String>(),
6090 ));
6091
6092 // Update this selection's endpoints to reflect the indentation.
6093 if row == selection.start.row {
6094 selection.start.column += indent_delta.len;
6095 }
6096 if row == selection.end.row {
6097 selection.end.column += indent_delta.len;
6098 delta_for_end_row = indent_delta.len;
6099 }
6100 }
6101
6102 if selection.start.row == selection.end.row {
6103 delta_for_start_row + delta_for_end_row
6104 } else {
6105 delta_for_end_row
6106 }
6107 }
6108
6109 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6110 if self.read_only(cx) {
6111 return;
6112 }
6113 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6114 let selections = self.selections.all::<Point>(cx);
6115 let mut deletion_ranges = Vec::new();
6116 let mut last_outdent = None;
6117 {
6118 let buffer = self.buffer.read(cx);
6119 let snapshot = buffer.snapshot(cx);
6120 for selection in &selections {
6121 let settings = buffer.settings_at(selection.start, cx);
6122 let tab_size = settings.tab_size.get();
6123 let mut rows = selection.spanned_rows(false, &display_map);
6124
6125 // Avoid re-outdenting a row that has already been outdented by a
6126 // previous selection.
6127 if let Some(last_row) = last_outdent {
6128 if last_row == rows.start {
6129 rows.start = rows.start.next_row();
6130 }
6131 }
6132 let has_multiple_rows = rows.len() > 1;
6133 for row in rows.iter_rows() {
6134 let indent_size = snapshot.indent_size_for_line(row);
6135 if indent_size.len > 0 {
6136 let deletion_len = match indent_size.kind {
6137 IndentKind::Space => {
6138 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6139 if columns_to_prev_tab_stop == 0 {
6140 tab_size
6141 } else {
6142 columns_to_prev_tab_stop
6143 }
6144 }
6145 IndentKind::Tab => 1,
6146 };
6147 let start = if has_multiple_rows
6148 || deletion_len > selection.start.column
6149 || indent_size.len < selection.start.column
6150 {
6151 0
6152 } else {
6153 selection.start.column - deletion_len
6154 };
6155 deletion_ranges.push(
6156 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6157 );
6158 last_outdent = Some(row);
6159 }
6160 }
6161 }
6162 }
6163
6164 self.transact(cx, |this, cx| {
6165 this.buffer.update(cx, |buffer, cx| {
6166 let empty_str: Arc<str> = Arc::default();
6167 buffer.edit(
6168 deletion_ranges
6169 .into_iter()
6170 .map(|range| (range, empty_str.clone())),
6171 None,
6172 cx,
6173 );
6174 });
6175 let selections = this.selections.all::<usize>(cx);
6176 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6177 });
6178 }
6179
6180 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6181 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6182 let selections = self.selections.all::<Point>(cx);
6183
6184 let mut new_cursors = Vec::new();
6185 let mut edit_ranges = Vec::new();
6186 let mut selections = selections.iter().peekable();
6187 while let Some(selection) = selections.next() {
6188 let mut rows = selection.spanned_rows(false, &display_map);
6189 let goal_display_column = selection.head().to_display_point(&display_map).column();
6190
6191 // Accumulate contiguous regions of rows that we want to delete.
6192 while let Some(next_selection) = selections.peek() {
6193 let next_rows = next_selection.spanned_rows(false, &display_map);
6194 if next_rows.start <= rows.end {
6195 rows.end = next_rows.end;
6196 selections.next().unwrap();
6197 } else {
6198 break;
6199 }
6200 }
6201
6202 let buffer = &display_map.buffer_snapshot;
6203 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6204 let edit_end;
6205 let cursor_buffer_row;
6206 if buffer.max_point().row >= rows.end.0 {
6207 // If there's a line after the range, delete the \n from the end of the row range
6208 // and position the cursor on the next line.
6209 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6210 cursor_buffer_row = rows.end;
6211 } else {
6212 // If there isn't a line after the range, delete the \n from the line before the
6213 // start of the row range and position the cursor there.
6214 edit_start = edit_start.saturating_sub(1);
6215 edit_end = buffer.len();
6216 cursor_buffer_row = rows.start.previous_row();
6217 }
6218
6219 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6220 *cursor.column_mut() =
6221 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6222
6223 new_cursors.push((
6224 selection.id,
6225 buffer.anchor_after(cursor.to_point(&display_map)),
6226 ));
6227 edit_ranges.push(edit_start..edit_end);
6228 }
6229
6230 self.transact(cx, |this, cx| {
6231 let buffer = this.buffer.update(cx, |buffer, cx| {
6232 let empty_str: Arc<str> = Arc::default();
6233 buffer.edit(
6234 edit_ranges
6235 .into_iter()
6236 .map(|range| (range, empty_str.clone())),
6237 None,
6238 cx,
6239 );
6240 buffer.snapshot(cx)
6241 });
6242 let new_selections = new_cursors
6243 .into_iter()
6244 .map(|(id, cursor)| {
6245 let cursor = cursor.to_point(&buffer);
6246 Selection {
6247 id,
6248 start: cursor,
6249 end: cursor,
6250 reversed: false,
6251 goal: SelectionGoal::None,
6252 }
6253 })
6254 .collect();
6255
6256 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6257 s.select(new_selections);
6258 });
6259 });
6260 }
6261
6262 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6263 if self.read_only(cx) {
6264 return;
6265 }
6266 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6267 for selection in self.selections.all::<Point>(cx) {
6268 let start = MultiBufferRow(selection.start.row);
6269 let end = if selection.start.row == selection.end.row {
6270 MultiBufferRow(selection.start.row + 1)
6271 } else {
6272 MultiBufferRow(selection.end.row)
6273 };
6274
6275 if let Some(last_row_range) = row_ranges.last_mut() {
6276 if start <= last_row_range.end {
6277 last_row_range.end = end;
6278 continue;
6279 }
6280 }
6281 row_ranges.push(start..end);
6282 }
6283
6284 let snapshot = self.buffer.read(cx).snapshot(cx);
6285 let mut cursor_positions = Vec::new();
6286 for row_range in &row_ranges {
6287 let anchor = snapshot.anchor_before(Point::new(
6288 row_range.end.previous_row().0,
6289 snapshot.line_len(row_range.end.previous_row()),
6290 ));
6291 cursor_positions.push(anchor..anchor);
6292 }
6293
6294 self.transact(cx, |this, cx| {
6295 for row_range in row_ranges.into_iter().rev() {
6296 for row in row_range.iter_rows().rev() {
6297 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6298 let next_line_row = row.next_row();
6299 let indent = snapshot.indent_size_for_line(next_line_row);
6300 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6301
6302 let replace = if snapshot.line_len(next_line_row) > indent.len {
6303 " "
6304 } else {
6305 ""
6306 };
6307
6308 this.buffer.update(cx, |buffer, cx| {
6309 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6310 });
6311 }
6312 }
6313
6314 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6315 s.select_anchor_ranges(cursor_positions)
6316 });
6317 });
6318 }
6319
6320 pub fn sort_lines_case_sensitive(
6321 &mut self,
6322 _: &SortLinesCaseSensitive,
6323 cx: &mut ViewContext<Self>,
6324 ) {
6325 self.manipulate_lines(cx, |lines| lines.sort())
6326 }
6327
6328 pub fn sort_lines_case_insensitive(
6329 &mut self,
6330 _: &SortLinesCaseInsensitive,
6331 cx: &mut ViewContext<Self>,
6332 ) {
6333 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6334 }
6335
6336 pub fn unique_lines_case_insensitive(
6337 &mut self,
6338 _: &UniqueLinesCaseInsensitive,
6339 cx: &mut ViewContext<Self>,
6340 ) {
6341 self.manipulate_lines(cx, |lines| {
6342 let mut seen = HashSet::default();
6343 lines.retain(|line| seen.insert(line.to_lowercase()));
6344 })
6345 }
6346
6347 pub fn unique_lines_case_sensitive(
6348 &mut self,
6349 _: &UniqueLinesCaseSensitive,
6350 cx: &mut ViewContext<Self>,
6351 ) {
6352 self.manipulate_lines(cx, |lines| {
6353 let mut seen = HashSet::default();
6354 lines.retain(|line| seen.insert(*line));
6355 })
6356 }
6357
6358 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6359 let mut revert_changes = HashMap::default();
6360 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6361 for hunk in hunks_for_rows(
6362 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6363 &multi_buffer_snapshot,
6364 ) {
6365 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6366 }
6367 if !revert_changes.is_empty() {
6368 self.transact(cx, |editor, cx| {
6369 editor.revert(revert_changes, cx);
6370 });
6371 }
6372 }
6373
6374 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6375 let Some(project) = self.project.clone() else {
6376 return;
6377 };
6378 self.reload(project, cx).detach_and_notify_err(cx);
6379 }
6380
6381 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6382 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6383 if !revert_changes.is_empty() {
6384 self.transact(cx, |editor, cx| {
6385 editor.revert(revert_changes, cx);
6386 });
6387 }
6388 }
6389
6390 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6391 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6392 let project_path = buffer.read(cx).project_path(cx)?;
6393 let project = self.project.as_ref()?.read(cx);
6394 let entry = project.entry_for_path(&project_path, cx)?;
6395 let parent = match &entry.canonical_path {
6396 Some(canonical_path) => canonical_path.to_path_buf(),
6397 None => project.absolute_path(&project_path, cx)?,
6398 }
6399 .parent()?
6400 .to_path_buf();
6401 Some(parent)
6402 }) {
6403 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6404 }
6405 }
6406
6407 fn gather_revert_changes(
6408 &mut self,
6409 selections: &[Selection<Anchor>],
6410 cx: &mut ViewContext<'_, Editor>,
6411 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6412 let mut revert_changes = HashMap::default();
6413 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6414 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6415 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6416 }
6417 revert_changes
6418 }
6419
6420 pub fn prepare_revert_change(
6421 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6422 multi_buffer: &Model<MultiBuffer>,
6423 hunk: &MultiBufferDiffHunk,
6424 cx: &AppContext,
6425 ) -> Option<()> {
6426 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6427 let buffer = buffer.read(cx);
6428 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6429 let buffer_snapshot = buffer.snapshot();
6430 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6431 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6432 probe
6433 .0
6434 .start
6435 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6436 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6437 }) {
6438 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6439 Some(())
6440 } else {
6441 None
6442 }
6443 }
6444
6445 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6446 self.manipulate_lines(cx, |lines| lines.reverse())
6447 }
6448
6449 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6450 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6451 }
6452
6453 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6454 where
6455 Fn: FnMut(&mut Vec<&str>),
6456 {
6457 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6458 let buffer = self.buffer.read(cx).snapshot(cx);
6459
6460 let mut edits = Vec::new();
6461
6462 let selections = self.selections.all::<Point>(cx);
6463 let mut selections = selections.iter().peekable();
6464 let mut contiguous_row_selections = Vec::new();
6465 let mut new_selections = Vec::new();
6466 let mut added_lines = 0;
6467 let mut removed_lines = 0;
6468
6469 while let Some(selection) = selections.next() {
6470 let (start_row, end_row) = consume_contiguous_rows(
6471 &mut contiguous_row_selections,
6472 selection,
6473 &display_map,
6474 &mut selections,
6475 );
6476
6477 let start_point = Point::new(start_row.0, 0);
6478 let end_point = Point::new(
6479 end_row.previous_row().0,
6480 buffer.line_len(end_row.previous_row()),
6481 );
6482 let text = buffer
6483 .text_for_range(start_point..end_point)
6484 .collect::<String>();
6485
6486 let mut lines = text.split('\n').collect_vec();
6487
6488 let lines_before = lines.len();
6489 callback(&mut lines);
6490 let lines_after = lines.len();
6491
6492 edits.push((start_point..end_point, lines.join("\n")));
6493
6494 // Selections must change based on added and removed line count
6495 let start_row =
6496 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6497 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6498 new_selections.push(Selection {
6499 id: selection.id,
6500 start: start_row,
6501 end: end_row,
6502 goal: SelectionGoal::None,
6503 reversed: selection.reversed,
6504 });
6505
6506 if lines_after > lines_before {
6507 added_lines += lines_after - lines_before;
6508 } else if lines_before > lines_after {
6509 removed_lines += lines_before - lines_after;
6510 }
6511 }
6512
6513 self.transact(cx, |this, cx| {
6514 let buffer = this.buffer.update(cx, |buffer, cx| {
6515 buffer.edit(edits, None, cx);
6516 buffer.snapshot(cx)
6517 });
6518
6519 // Recalculate offsets on newly edited buffer
6520 let new_selections = new_selections
6521 .iter()
6522 .map(|s| {
6523 let start_point = Point::new(s.start.0, 0);
6524 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6525 Selection {
6526 id: s.id,
6527 start: buffer.point_to_offset(start_point),
6528 end: buffer.point_to_offset(end_point),
6529 goal: s.goal,
6530 reversed: s.reversed,
6531 }
6532 })
6533 .collect();
6534
6535 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6536 s.select(new_selections);
6537 });
6538
6539 this.request_autoscroll(Autoscroll::fit(), cx);
6540 });
6541 }
6542
6543 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6544 self.manipulate_text(cx, |text| text.to_uppercase())
6545 }
6546
6547 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6548 self.manipulate_text(cx, |text| text.to_lowercase())
6549 }
6550
6551 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6552 self.manipulate_text(cx, |text| {
6553 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6554 // https://github.com/rutrum/convert-case/issues/16
6555 text.split('\n')
6556 .map(|line| line.to_case(Case::Title))
6557 .join("\n")
6558 })
6559 }
6560
6561 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6562 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6563 }
6564
6565 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6566 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6567 }
6568
6569 pub fn convert_to_upper_camel_case(
6570 &mut self,
6571 _: &ConvertToUpperCamelCase,
6572 cx: &mut ViewContext<Self>,
6573 ) {
6574 self.manipulate_text(cx, |text| {
6575 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6576 // https://github.com/rutrum/convert-case/issues/16
6577 text.split('\n')
6578 .map(|line| line.to_case(Case::UpperCamel))
6579 .join("\n")
6580 })
6581 }
6582
6583 pub fn convert_to_lower_camel_case(
6584 &mut self,
6585 _: &ConvertToLowerCamelCase,
6586 cx: &mut ViewContext<Self>,
6587 ) {
6588 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6589 }
6590
6591 pub fn convert_to_opposite_case(
6592 &mut self,
6593 _: &ConvertToOppositeCase,
6594 cx: &mut ViewContext<Self>,
6595 ) {
6596 self.manipulate_text(cx, |text| {
6597 text.chars()
6598 .fold(String::with_capacity(text.len()), |mut t, c| {
6599 if c.is_uppercase() {
6600 t.extend(c.to_lowercase());
6601 } else {
6602 t.extend(c.to_uppercase());
6603 }
6604 t
6605 })
6606 })
6607 }
6608
6609 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6610 where
6611 Fn: FnMut(&str) -> String,
6612 {
6613 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6614 let buffer = self.buffer.read(cx).snapshot(cx);
6615
6616 let mut new_selections = Vec::new();
6617 let mut edits = Vec::new();
6618 let mut selection_adjustment = 0i32;
6619
6620 for selection in self.selections.all::<usize>(cx) {
6621 let selection_is_empty = selection.is_empty();
6622
6623 let (start, end) = if selection_is_empty {
6624 let word_range = movement::surrounding_word(
6625 &display_map,
6626 selection.start.to_display_point(&display_map),
6627 );
6628 let start = word_range.start.to_offset(&display_map, Bias::Left);
6629 let end = word_range.end.to_offset(&display_map, Bias::Left);
6630 (start, end)
6631 } else {
6632 (selection.start, selection.end)
6633 };
6634
6635 let text = buffer.text_for_range(start..end).collect::<String>();
6636 let old_length = text.len() as i32;
6637 let text = callback(&text);
6638
6639 new_selections.push(Selection {
6640 start: (start as i32 - selection_adjustment) as usize,
6641 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6642 goal: SelectionGoal::None,
6643 ..selection
6644 });
6645
6646 selection_adjustment += old_length - text.len() as i32;
6647
6648 edits.push((start..end, text));
6649 }
6650
6651 self.transact(cx, |this, cx| {
6652 this.buffer.update(cx, |buffer, cx| {
6653 buffer.edit(edits, None, cx);
6654 });
6655
6656 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6657 s.select(new_selections);
6658 });
6659
6660 this.request_autoscroll(Autoscroll::fit(), cx);
6661 });
6662 }
6663
6664 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6665 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6666 let buffer = &display_map.buffer_snapshot;
6667 let selections = self.selections.all::<Point>(cx);
6668
6669 let mut edits = Vec::new();
6670 let mut selections_iter = selections.iter().peekable();
6671 while let Some(selection) = selections_iter.next() {
6672 // Avoid duplicating the same lines twice.
6673 let mut rows = selection.spanned_rows(false, &display_map);
6674
6675 while let Some(next_selection) = selections_iter.peek() {
6676 let next_rows = next_selection.spanned_rows(false, &display_map);
6677 if next_rows.start < rows.end {
6678 rows.end = next_rows.end;
6679 selections_iter.next().unwrap();
6680 } else {
6681 break;
6682 }
6683 }
6684
6685 // Copy the text from the selected row region and splice it either at the start
6686 // or end of the region.
6687 let start = Point::new(rows.start.0, 0);
6688 let end = Point::new(
6689 rows.end.previous_row().0,
6690 buffer.line_len(rows.end.previous_row()),
6691 );
6692 let text = buffer
6693 .text_for_range(start..end)
6694 .chain(Some("\n"))
6695 .collect::<String>();
6696 let insert_location = if upwards {
6697 Point::new(rows.end.0, 0)
6698 } else {
6699 start
6700 };
6701 edits.push((insert_location..insert_location, text));
6702 }
6703
6704 self.transact(cx, |this, cx| {
6705 this.buffer.update(cx, |buffer, cx| {
6706 buffer.edit(edits, None, cx);
6707 });
6708
6709 this.request_autoscroll(Autoscroll::fit(), cx);
6710 });
6711 }
6712
6713 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6714 self.duplicate_line(true, cx);
6715 }
6716
6717 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6718 self.duplicate_line(false, cx);
6719 }
6720
6721 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6722 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6723 let buffer = self.buffer.read(cx).snapshot(cx);
6724
6725 let mut edits = Vec::new();
6726 let mut unfold_ranges = Vec::new();
6727 let mut refold_ranges = Vec::new();
6728
6729 let selections = self.selections.all::<Point>(cx);
6730 let mut selections = selections.iter().peekable();
6731 let mut contiguous_row_selections = Vec::new();
6732 let mut new_selections = Vec::new();
6733
6734 while let Some(selection) = selections.next() {
6735 // Find all the selections that span a contiguous row range
6736 let (start_row, end_row) = consume_contiguous_rows(
6737 &mut contiguous_row_selections,
6738 selection,
6739 &display_map,
6740 &mut selections,
6741 );
6742
6743 // Move the text spanned by the row range to be before the line preceding the row range
6744 if start_row.0 > 0 {
6745 let range_to_move = Point::new(
6746 start_row.previous_row().0,
6747 buffer.line_len(start_row.previous_row()),
6748 )
6749 ..Point::new(
6750 end_row.previous_row().0,
6751 buffer.line_len(end_row.previous_row()),
6752 );
6753 let insertion_point = display_map
6754 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6755 .0;
6756
6757 // Don't move lines across excerpts
6758 if buffer
6759 .excerpt_boundaries_in_range((
6760 Bound::Excluded(insertion_point),
6761 Bound::Included(range_to_move.end),
6762 ))
6763 .next()
6764 .is_none()
6765 {
6766 let text = buffer
6767 .text_for_range(range_to_move.clone())
6768 .flat_map(|s| s.chars())
6769 .skip(1)
6770 .chain(['\n'])
6771 .collect::<String>();
6772
6773 edits.push((
6774 buffer.anchor_after(range_to_move.start)
6775 ..buffer.anchor_before(range_to_move.end),
6776 String::new(),
6777 ));
6778 let insertion_anchor = buffer.anchor_after(insertion_point);
6779 edits.push((insertion_anchor..insertion_anchor, text));
6780
6781 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6782
6783 // Move selections up
6784 new_selections.extend(contiguous_row_selections.drain(..).map(
6785 |mut selection| {
6786 selection.start.row -= row_delta;
6787 selection.end.row -= row_delta;
6788 selection
6789 },
6790 ));
6791
6792 // Move folds up
6793 unfold_ranges.push(range_to_move.clone());
6794 for fold in display_map.folds_in_range(
6795 buffer.anchor_before(range_to_move.start)
6796 ..buffer.anchor_after(range_to_move.end),
6797 ) {
6798 let mut start = fold.range.start.to_point(&buffer);
6799 let mut end = fold.range.end.to_point(&buffer);
6800 start.row -= row_delta;
6801 end.row -= row_delta;
6802 refold_ranges.push((start..end, fold.placeholder.clone()));
6803 }
6804 }
6805 }
6806
6807 // If we didn't move line(s), preserve the existing selections
6808 new_selections.append(&mut contiguous_row_selections);
6809 }
6810
6811 self.transact(cx, |this, cx| {
6812 this.unfold_ranges(unfold_ranges, true, true, cx);
6813 this.buffer.update(cx, |buffer, cx| {
6814 for (range, text) in edits {
6815 buffer.edit([(range, text)], None, cx);
6816 }
6817 });
6818 this.fold_ranges(refold_ranges, true, cx);
6819 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6820 s.select(new_selections);
6821 })
6822 });
6823 }
6824
6825 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6826 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6827 let buffer = self.buffer.read(cx).snapshot(cx);
6828
6829 let mut edits = Vec::new();
6830 let mut unfold_ranges = Vec::new();
6831 let mut refold_ranges = Vec::new();
6832
6833 let selections = self.selections.all::<Point>(cx);
6834 let mut selections = selections.iter().peekable();
6835 let mut contiguous_row_selections = Vec::new();
6836 let mut new_selections = Vec::new();
6837
6838 while let Some(selection) = selections.next() {
6839 // Find all the selections that span a contiguous row range
6840 let (start_row, end_row) = consume_contiguous_rows(
6841 &mut contiguous_row_selections,
6842 selection,
6843 &display_map,
6844 &mut selections,
6845 );
6846
6847 // Move the text spanned by the row range to be after the last line of the row range
6848 if end_row.0 <= buffer.max_point().row {
6849 let range_to_move =
6850 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6851 let insertion_point = display_map
6852 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6853 .0;
6854
6855 // Don't move lines across excerpt boundaries
6856 if buffer
6857 .excerpt_boundaries_in_range((
6858 Bound::Excluded(range_to_move.start),
6859 Bound::Included(insertion_point),
6860 ))
6861 .next()
6862 .is_none()
6863 {
6864 let mut text = String::from("\n");
6865 text.extend(buffer.text_for_range(range_to_move.clone()));
6866 text.pop(); // Drop trailing newline
6867 edits.push((
6868 buffer.anchor_after(range_to_move.start)
6869 ..buffer.anchor_before(range_to_move.end),
6870 String::new(),
6871 ));
6872 let insertion_anchor = buffer.anchor_after(insertion_point);
6873 edits.push((insertion_anchor..insertion_anchor, text));
6874
6875 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6876
6877 // Move selections down
6878 new_selections.extend(contiguous_row_selections.drain(..).map(
6879 |mut selection| {
6880 selection.start.row += row_delta;
6881 selection.end.row += row_delta;
6882 selection
6883 },
6884 ));
6885
6886 // Move folds down
6887 unfold_ranges.push(range_to_move.clone());
6888 for fold in display_map.folds_in_range(
6889 buffer.anchor_before(range_to_move.start)
6890 ..buffer.anchor_after(range_to_move.end),
6891 ) {
6892 let mut start = fold.range.start.to_point(&buffer);
6893 let mut end = fold.range.end.to_point(&buffer);
6894 start.row += row_delta;
6895 end.row += row_delta;
6896 refold_ranges.push((start..end, fold.placeholder.clone()));
6897 }
6898 }
6899 }
6900
6901 // If we didn't move line(s), preserve the existing selections
6902 new_selections.append(&mut contiguous_row_selections);
6903 }
6904
6905 self.transact(cx, |this, cx| {
6906 this.unfold_ranges(unfold_ranges, true, true, cx);
6907 this.buffer.update(cx, |buffer, cx| {
6908 for (range, text) in edits {
6909 buffer.edit([(range, text)], None, cx);
6910 }
6911 });
6912 this.fold_ranges(refold_ranges, true, cx);
6913 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6914 });
6915 }
6916
6917 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6918 let text_layout_details = &self.text_layout_details(cx);
6919 self.transact(cx, |this, cx| {
6920 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6921 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6922 let line_mode = s.line_mode;
6923 s.move_with(|display_map, selection| {
6924 if !selection.is_empty() || line_mode {
6925 return;
6926 }
6927
6928 let mut head = selection.head();
6929 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6930 if head.column() == display_map.line_len(head.row()) {
6931 transpose_offset = display_map
6932 .buffer_snapshot
6933 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6934 }
6935
6936 if transpose_offset == 0 {
6937 return;
6938 }
6939
6940 *head.column_mut() += 1;
6941 head = display_map.clip_point(head, Bias::Right);
6942 let goal = SelectionGoal::HorizontalPosition(
6943 display_map
6944 .x_for_display_point(head, text_layout_details)
6945 .into(),
6946 );
6947 selection.collapse_to(head, goal);
6948
6949 let transpose_start = display_map
6950 .buffer_snapshot
6951 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6952 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6953 let transpose_end = display_map
6954 .buffer_snapshot
6955 .clip_offset(transpose_offset + 1, Bias::Right);
6956 if let Some(ch) =
6957 display_map.buffer_snapshot.chars_at(transpose_start).next()
6958 {
6959 edits.push((transpose_start..transpose_offset, String::new()));
6960 edits.push((transpose_end..transpose_end, ch.to_string()));
6961 }
6962 }
6963 });
6964 edits
6965 });
6966 this.buffer
6967 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6968 let selections = this.selections.all::<usize>(cx);
6969 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6970 s.select(selections);
6971 });
6972 });
6973 }
6974
6975 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6976 self.rewrap_impl(true, cx)
6977 }
6978
6979 pub fn rewrap_impl(&mut self, only_text: bool, cx: &mut ViewContext<Self>) {
6980 let buffer = self.buffer.read(cx).snapshot(cx);
6981 let selections = self.selections.all::<Point>(cx);
6982 let mut selections = selections.iter().peekable();
6983
6984 let mut edits = Vec::new();
6985 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6986
6987 while let Some(selection) = selections.next() {
6988 let mut start_row = selection.start.row;
6989 let mut end_row = selection.end.row;
6990
6991 // Skip selections that overlap with a range that has already been rewrapped.
6992 let selection_range = start_row..end_row;
6993 if rewrapped_row_ranges
6994 .iter()
6995 .any(|range| range.overlaps(&selection_range))
6996 {
6997 continue;
6998 }
6999
7000 let mut should_rewrap = !only_text;
7001
7002 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7003 match language_scope.language_name().0.as_ref() {
7004 "Markdown" | "Plain Text" => {
7005 should_rewrap = true;
7006 }
7007 _ => {}
7008 }
7009 }
7010
7011 // Since not all lines in the selection may be at the same indent
7012 // level, choose the indent size that is the most common between all
7013 // of the lines.
7014 //
7015 // If there is a tie, we use the deepest indent.
7016 let (indent_size, indent_end) = {
7017 let mut indent_size_occurrences = HashMap::default();
7018 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7019
7020 for row in start_row..=end_row {
7021 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7022 rows_by_indent_size.entry(indent).or_default().push(row);
7023 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7024 }
7025
7026 let indent_size = indent_size_occurrences
7027 .into_iter()
7028 .max_by_key(|(indent, count)| (*count, indent.len))
7029 .map(|(indent, _)| indent)
7030 .unwrap_or_default();
7031 let row = rows_by_indent_size[&indent_size][0];
7032 let indent_end = Point::new(row, indent_size.len);
7033
7034 (indent_size, indent_end)
7035 };
7036
7037 let mut line_prefix = indent_size.chars().collect::<String>();
7038
7039 if let Some(comment_prefix) =
7040 buffer
7041 .language_scope_at(selection.head())
7042 .and_then(|language| {
7043 language
7044 .line_comment_prefixes()
7045 .iter()
7046 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7047 .cloned()
7048 })
7049 {
7050 line_prefix.push_str(&comment_prefix);
7051 should_rewrap = true;
7052 }
7053
7054 if selection.is_empty() {
7055 'expand_upwards: while start_row > 0 {
7056 let prev_row = start_row - 1;
7057 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7058 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7059 {
7060 start_row = prev_row;
7061 } else {
7062 break 'expand_upwards;
7063 }
7064 }
7065
7066 'expand_downwards: while end_row < buffer.max_point().row {
7067 let next_row = end_row + 1;
7068 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7069 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7070 {
7071 end_row = next_row;
7072 } else {
7073 break 'expand_downwards;
7074 }
7075 }
7076 }
7077
7078 if !should_rewrap {
7079 continue;
7080 }
7081
7082 let start = Point::new(start_row, 0);
7083 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7084 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7085 let Some(lines_without_prefixes) = selection_text
7086 .lines()
7087 .map(|line| {
7088 line.strip_prefix(&line_prefix)
7089 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7090 .ok_or_else(|| {
7091 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7092 })
7093 })
7094 .collect::<Result<Vec<_>, _>>()
7095 .log_err()
7096 else {
7097 continue;
7098 };
7099
7100 let unwrapped_text = lines_without_prefixes.join(" ");
7101 let wrap_column = buffer
7102 .settings_at(Point::new(start_row, 0), cx)
7103 .preferred_line_length as usize;
7104 let mut wrapped_text = String::new();
7105 let mut current_line = line_prefix.clone();
7106 for word in unwrapped_text.split_whitespace() {
7107 if current_line.len() + word.len() >= wrap_column {
7108 wrapped_text.push_str(¤t_line);
7109 wrapped_text.push('\n');
7110 current_line.truncate(line_prefix.len());
7111 }
7112
7113 if current_line.len() > line_prefix.len() {
7114 current_line.push(' ');
7115 }
7116
7117 current_line.push_str(word);
7118 }
7119
7120 if !current_line.is_empty() {
7121 wrapped_text.push_str(¤t_line);
7122 }
7123
7124 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
7125 let mut offset = start.to_offset(&buffer);
7126 let mut moved_since_edit = true;
7127
7128 for change in diff.iter_all_changes() {
7129 let value = change.value();
7130 match change.tag() {
7131 ChangeTag::Equal => {
7132 offset += value.len();
7133 moved_since_edit = true;
7134 }
7135 ChangeTag::Delete => {
7136 let start = buffer.anchor_after(offset);
7137 let end = buffer.anchor_before(offset + value.len());
7138
7139 if moved_since_edit {
7140 edits.push((start..end, String::new()));
7141 } else {
7142 edits.last_mut().unwrap().0.end = end;
7143 }
7144
7145 offset += value.len();
7146 moved_since_edit = false;
7147 }
7148 ChangeTag::Insert => {
7149 if moved_since_edit {
7150 let anchor = buffer.anchor_after(offset);
7151 edits.push((anchor..anchor, value.to_string()));
7152 } else {
7153 edits.last_mut().unwrap().1.push_str(value);
7154 }
7155
7156 moved_since_edit = false;
7157 }
7158 }
7159 }
7160
7161 rewrapped_row_ranges.push(start_row..=end_row);
7162 }
7163
7164 self.buffer
7165 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7166 }
7167
7168 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7169 let mut text = String::new();
7170 let buffer = self.buffer.read(cx).snapshot(cx);
7171 let mut selections = self.selections.all::<Point>(cx);
7172 let mut clipboard_selections = Vec::with_capacity(selections.len());
7173 {
7174 let max_point = buffer.max_point();
7175 let mut is_first = true;
7176 for selection in &mut selections {
7177 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7178 if is_entire_line {
7179 selection.start = Point::new(selection.start.row, 0);
7180 if !selection.is_empty() && selection.end.column == 0 {
7181 selection.end = cmp::min(max_point, selection.end);
7182 } else {
7183 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7184 }
7185 selection.goal = SelectionGoal::None;
7186 }
7187 if is_first {
7188 is_first = false;
7189 } else {
7190 text += "\n";
7191 }
7192 let mut len = 0;
7193 for chunk in buffer.text_for_range(selection.start..selection.end) {
7194 text.push_str(chunk);
7195 len += chunk.len();
7196 }
7197 clipboard_selections.push(ClipboardSelection {
7198 len,
7199 is_entire_line,
7200 first_line_indent: buffer
7201 .indent_size_for_line(MultiBufferRow(selection.start.row))
7202 .len,
7203 });
7204 }
7205 }
7206
7207 self.transact(cx, |this, cx| {
7208 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7209 s.select(selections);
7210 });
7211 this.insert("", cx);
7212 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7213 text,
7214 clipboard_selections,
7215 ));
7216 });
7217 }
7218
7219 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7220 let selections = self.selections.all::<Point>(cx);
7221 let buffer = self.buffer.read(cx).read(cx);
7222 let mut text = String::new();
7223
7224 let mut clipboard_selections = Vec::with_capacity(selections.len());
7225 {
7226 let max_point = buffer.max_point();
7227 let mut is_first = true;
7228 for selection in selections.iter() {
7229 let mut start = selection.start;
7230 let mut end = selection.end;
7231 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7232 if is_entire_line {
7233 start = Point::new(start.row, 0);
7234 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7235 }
7236 if is_first {
7237 is_first = false;
7238 } else {
7239 text += "\n";
7240 }
7241 let mut len = 0;
7242 for chunk in buffer.text_for_range(start..end) {
7243 text.push_str(chunk);
7244 len += chunk.len();
7245 }
7246 clipboard_selections.push(ClipboardSelection {
7247 len,
7248 is_entire_line,
7249 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7250 });
7251 }
7252 }
7253
7254 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7255 text,
7256 clipboard_selections,
7257 ));
7258 }
7259
7260 pub fn do_paste(
7261 &mut self,
7262 text: &String,
7263 clipboard_selections: Option<Vec<ClipboardSelection>>,
7264 handle_entire_lines: bool,
7265 cx: &mut ViewContext<Self>,
7266 ) {
7267 if self.read_only(cx) {
7268 return;
7269 }
7270
7271 let clipboard_text = Cow::Borrowed(text);
7272
7273 self.transact(cx, |this, cx| {
7274 if let Some(mut clipboard_selections) = clipboard_selections {
7275 let old_selections = this.selections.all::<usize>(cx);
7276 let all_selections_were_entire_line =
7277 clipboard_selections.iter().all(|s| s.is_entire_line);
7278 let first_selection_indent_column =
7279 clipboard_selections.first().map(|s| s.first_line_indent);
7280 if clipboard_selections.len() != old_selections.len() {
7281 clipboard_selections.drain(..);
7282 }
7283
7284 this.buffer.update(cx, |buffer, cx| {
7285 let snapshot = buffer.read(cx);
7286 let mut start_offset = 0;
7287 let mut edits = Vec::new();
7288 let mut original_indent_columns = Vec::new();
7289 for (ix, selection) in old_selections.iter().enumerate() {
7290 let to_insert;
7291 let entire_line;
7292 let original_indent_column;
7293 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7294 let end_offset = start_offset + clipboard_selection.len;
7295 to_insert = &clipboard_text[start_offset..end_offset];
7296 entire_line = clipboard_selection.is_entire_line;
7297 start_offset = end_offset + 1;
7298 original_indent_column = Some(clipboard_selection.first_line_indent);
7299 } else {
7300 to_insert = clipboard_text.as_str();
7301 entire_line = all_selections_were_entire_line;
7302 original_indent_column = first_selection_indent_column
7303 }
7304
7305 // If the corresponding selection was empty when this slice of the
7306 // clipboard text was written, then the entire line containing the
7307 // selection was copied. If this selection is also currently empty,
7308 // then paste the line before the current line of the buffer.
7309 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7310 let column = selection.start.to_point(&snapshot).column as usize;
7311 let line_start = selection.start - column;
7312 line_start..line_start
7313 } else {
7314 selection.range()
7315 };
7316
7317 edits.push((range, to_insert));
7318 original_indent_columns.extend(original_indent_column);
7319 }
7320 drop(snapshot);
7321
7322 buffer.edit(
7323 edits,
7324 Some(AutoindentMode::Block {
7325 original_indent_columns,
7326 }),
7327 cx,
7328 );
7329 });
7330
7331 let selections = this.selections.all::<usize>(cx);
7332 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7333 } else {
7334 this.insert(&clipboard_text, cx);
7335 }
7336 });
7337 }
7338
7339 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7340 if let Some(item) = cx.read_from_clipboard() {
7341 let entries = item.entries();
7342
7343 match entries.first() {
7344 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7345 // of all the pasted entries.
7346 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7347 .do_paste(
7348 clipboard_string.text(),
7349 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7350 true,
7351 cx,
7352 ),
7353 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7354 }
7355 }
7356 }
7357
7358 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7359 if self.read_only(cx) {
7360 return;
7361 }
7362
7363 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7364 if let Some((selections, _)) =
7365 self.selection_history.transaction(transaction_id).cloned()
7366 {
7367 self.change_selections(None, cx, |s| {
7368 s.select_anchors(selections.to_vec());
7369 });
7370 }
7371 self.request_autoscroll(Autoscroll::fit(), cx);
7372 self.unmark_text(cx);
7373 self.refresh_inline_completion(true, false, cx);
7374 cx.emit(EditorEvent::Edited { transaction_id });
7375 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7376 }
7377 }
7378
7379 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7380 if self.read_only(cx) {
7381 return;
7382 }
7383
7384 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7385 if let Some((_, Some(selections))) =
7386 self.selection_history.transaction(transaction_id).cloned()
7387 {
7388 self.change_selections(None, cx, |s| {
7389 s.select_anchors(selections.to_vec());
7390 });
7391 }
7392 self.request_autoscroll(Autoscroll::fit(), cx);
7393 self.unmark_text(cx);
7394 self.refresh_inline_completion(true, false, cx);
7395 cx.emit(EditorEvent::Edited { transaction_id });
7396 }
7397 }
7398
7399 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7400 self.buffer
7401 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7402 }
7403
7404 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7405 self.buffer
7406 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7407 }
7408
7409 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7410 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7411 let line_mode = s.line_mode;
7412 s.move_with(|map, selection| {
7413 let cursor = if selection.is_empty() && !line_mode {
7414 movement::left(map, selection.start)
7415 } else {
7416 selection.start
7417 };
7418 selection.collapse_to(cursor, SelectionGoal::None);
7419 });
7420 })
7421 }
7422
7423 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7424 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7425 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7426 })
7427 }
7428
7429 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7430 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7431 let line_mode = s.line_mode;
7432 s.move_with(|map, selection| {
7433 let cursor = if selection.is_empty() && !line_mode {
7434 movement::right(map, selection.end)
7435 } else {
7436 selection.end
7437 };
7438 selection.collapse_to(cursor, SelectionGoal::None)
7439 });
7440 })
7441 }
7442
7443 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7444 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7445 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7446 })
7447 }
7448
7449 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7450 if self.take_rename(true, cx).is_some() {
7451 return;
7452 }
7453
7454 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7455 cx.propagate();
7456 return;
7457 }
7458
7459 let text_layout_details = &self.text_layout_details(cx);
7460 let selection_count = self.selections.count();
7461 let first_selection = self.selections.first_anchor();
7462
7463 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7464 let line_mode = s.line_mode;
7465 s.move_with(|map, selection| {
7466 if !selection.is_empty() && !line_mode {
7467 selection.goal = SelectionGoal::None;
7468 }
7469 let (cursor, goal) = movement::up(
7470 map,
7471 selection.start,
7472 selection.goal,
7473 false,
7474 text_layout_details,
7475 );
7476 selection.collapse_to(cursor, goal);
7477 });
7478 });
7479
7480 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7481 {
7482 cx.propagate();
7483 }
7484 }
7485
7486 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7487 if self.take_rename(true, cx).is_some() {
7488 return;
7489 }
7490
7491 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7492 cx.propagate();
7493 return;
7494 }
7495
7496 let text_layout_details = &self.text_layout_details(cx);
7497
7498 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7499 let line_mode = s.line_mode;
7500 s.move_with(|map, selection| {
7501 if !selection.is_empty() && !line_mode {
7502 selection.goal = SelectionGoal::None;
7503 }
7504 let (cursor, goal) = movement::up_by_rows(
7505 map,
7506 selection.start,
7507 action.lines,
7508 selection.goal,
7509 false,
7510 text_layout_details,
7511 );
7512 selection.collapse_to(cursor, goal);
7513 });
7514 })
7515 }
7516
7517 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7518 if self.take_rename(true, cx).is_some() {
7519 return;
7520 }
7521
7522 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7523 cx.propagate();
7524 return;
7525 }
7526
7527 let text_layout_details = &self.text_layout_details(cx);
7528
7529 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7530 let line_mode = s.line_mode;
7531 s.move_with(|map, selection| {
7532 if !selection.is_empty() && !line_mode {
7533 selection.goal = SelectionGoal::None;
7534 }
7535 let (cursor, goal) = movement::down_by_rows(
7536 map,
7537 selection.start,
7538 action.lines,
7539 selection.goal,
7540 false,
7541 text_layout_details,
7542 );
7543 selection.collapse_to(cursor, goal);
7544 });
7545 })
7546 }
7547
7548 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7549 let text_layout_details = &self.text_layout_details(cx);
7550 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7551 s.move_heads_with(|map, head, goal| {
7552 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7553 })
7554 })
7555 }
7556
7557 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7558 let text_layout_details = &self.text_layout_details(cx);
7559 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7560 s.move_heads_with(|map, head, goal| {
7561 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7562 })
7563 })
7564 }
7565
7566 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7567 let Some(row_count) = self.visible_row_count() else {
7568 return;
7569 };
7570
7571 let text_layout_details = &self.text_layout_details(cx);
7572
7573 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7574 s.move_heads_with(|map, head, goal| {
7575 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7576 })
7577 })
7578 }
7579
7580 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7581 if self.take_rename(true, cx).is_some() {
7582 return;
7583 }
7584
7585 if self
7586 .context_menu
7587 .write()
7588 .as_mut()
7589 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7590 .unwrap_or(false)
7591 {
7592 return;
7593 }
7594
7595 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7596 cx.propagate();
7597 return;
7598 }
7599
7600 let Some(row_count) = self.visible_row_count() else {
7601 return;
7602 };
7603
7604 let autoscroll = if action.center_cursor {
7605 Autoscroll::center()
7606 } else {
7607 Autoscroll::fit()
7608 };
7609
7610 let text_layout_details = &self.text_layout_details(cx);
7611
7612 self.change_selections(Some(autoscroll), cx, |s| {
7613 let line_mode = s.line_mode;
7614 s.move_with(|map, selection| {
7615 if !selection.is_empty() && !line_mode {
7616 selection.goal = SelectionGoal::None;
7617 }
7618 let (cursor, goal) = movement::up_by_rows(
7619 map,
7620 selection.end,
7621 row_count,
7622 selection.goal,
7623 false,
7624 text_layout_details,
7625 );
7626 selection.collapse_to(cursor, goal);
7627 });
7628 });
7629 }
7630
7631 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7632 let text_layout_details = &self.text_layout_details(cx);
7633 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7634 s.move_heads_with(|map, head, goal| {
7635 movement::up(map, head, goal, false, text_layout_details)
7636 })
7637 })
7638 }
7639
7640 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7641 self.take_rename(true, cx);
7642
7643 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7644 cx.propagate();
7645 return;
7646 }
7647
7648 let text_layout_details = &self.text_layout_details(cx);
7649 let selection_count = self.selections.count();
7650 let first_selection = self.selections.first_anchor();
7651
7652 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7653 let line_mode = s.line_mode;
7654 s.move_with(|map, selection| {
7655 if !selection.is_empty() && !line_mode {
7656 selection.goal = SelectionGoal::None;
7657 }
7658 let (cursor, goal) = movement::down(
7659 map,
7660 selection.end,
7661 selection.goal,
7662 false,
7663 text_layout_details,
7664 );
7665 selection.collapse_to(cursor, goal);
7666 });
7667 });
7668
7669 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7670 {
7671 cx.propagate();
7672 }
7673 }
7674
7675 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7676 let Some(row_count) = self.visible_row_count() else {
7677 return;
7678 };
7679
7680 let text_layout_details = &self.text_layout_details(cx);
7681
7682 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7683 s.move_heads_with(|map, head, goal| {
7684 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7685 })
7686 })
7687 }
7688
7689 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7690 if self.take_rename(true, cx).is_some() {
7691 return;
7692 }
7693
7694 if self
7695 .context_menu
7696 .write()
7697 .as_mut()
7698 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7699 .unwrap_or(false)
7700 {
7701 return;
7702 }
7703
7704 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7705 cx.propagate();
7706 return;
7707 }
7708
7709 let Some(row_count) = self.visible_row_count() else {
7710 return;
7711 };
7712
7713 let autoscroll = if action.center_cursor {
7714 Autoscroll::center()
7715 } else {
7716 Autoscroll::fit()
7717 };
7718
7719 let text_layout_details = &self.text_layout_details(cx);
7720 self.change_selections(Some(autoscroll), cx, |s| {
7721 let line_mode = s.line_mode;
7722 s.move_with(|map, selection| {
7723 if !selection.is_empty() && !line_mode {
7724 selection.goal = SelectionGoal::None;
7725 }
7726 let (cursor, goal) = movement::down_by_rows(
7727 map,
7728 selection.end,
7729 row_count,
7730 selection.goal,
7731 false,
7732 text_layout_details,
7733 );
7734 selection.collapse_to(cursor, goal);
7735 });
7736 });
7737 }
7738
7739 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7740 let text_layout_details = &self.text_layout_details(cx);
7741 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7742 s.move_heads_with(|map, head, goal| {
7743 movement::down(map, head, goal, false, text_layout_details)
7744 })
7745 });
7746 }
7747
7748 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7749 if let Some(context_menu) = self.context_menu.write().as_mut() {
7750 context_menu.select_first(self.completion_provider.as_deref(), cx);
7751 }
7752 }
7753
7754 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7755 if let Some(context_menu) = self.context_menu.write().as_mut() {
7756 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7757 }
7758 }
7759
7760 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7761 if let Some(context_menu) = self.context_menu.write().as_mut() {
7762 context_menu.select_next(self.completion_provider.as_deref(), cx);
7763 }
7764 }
7765
7766 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7767 if let Some(context_menu) = self.context_menu.write().as_mut() {
7768 context_menu.select_last(self.completion_provider.as_deref(), cx);
7769 }
7770 }
7771
7772 pub fn move_to_previous_word_start(
7773 &mut self,
7774 _: &MoveToPreviousWordStart,
7775 cx: &mut ViewContext<Self>,
7776 ) {
7777 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7778 s.move_cursors_with(|map, head, _| {
7779 (
7780 movement::previous_word_start(map, head),
7781 SelectionGoal::None,
7782 )
7783 });
7784 })
7785 }
7786
7787 pub fn move_to_previous_subword_start(
7788 &mut self,
7789 _: &MoveToPreviousSubwordStart,
7790 cx: &mut ViewContext<Self>,
7791 ) {
7792 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7793 s.move_cursors_with(|map, head, _| {
7794 (
7795 movement::previous_subword_start(map, head),
7796 SelectionGoal::None,
7797 )
7798 });
7799 })
7800 }
7801
7802 pub fn select_to_previous_word_start(
7803 &mut self,
7804 _: &SelectToPreviousWordStart,
7805 cx: &mut ViewContext<Self>,
7806 ) {
7807 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7808 s.move_heads_with(|map, head, _| {
7809 (
7810 movement::previous_word_start(map, head),
7811 SelectionGoal::None,
7812 )
7813 });
7814 })
7815 }
7816
7817 pub fn select_to_previous_subword_start(
7818 &mut self,
7819 _: &SelectToPreviousSubwordStart,
7820 cx: &mut ViewContext<Self>,
7821 ) {
7822 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7823 s.move_heads_with(|map, head, _| {
7824 (
7825 movement::previous_subword_start(map, head),
7826 SelectionGoal::None,
7827 )
7828 });
7829 })
7830 }
7831
7832 pub fn delete_to_previous_word_start(
7833 &mut self,
7834 action: &DeleteToPreviousWordStart,
7835 cx: &mut ViewContext<Self>,
7836 ) {
7837 self.transact(cx, |this, cx| {
7838 this.select_autoclose_pair(cx);
7839 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7840 let line_mode = s.line_mode;
7841 s.move_with(|map, selection| {
7842 if selection.is_empty() && !line_mode {
7843 let cursor = if action.ignore_newlines {
7844 movement::previous_word_start(map, selection.head())
7845 } else {
7846 movement::previous_word_start_or_newline(map, selection.head())
7847 };
7848 selection.set_head(cursor, SelectionGoal::None);
7849 }
7850 });
7851 });
7852 this.insert("", cx);
7853 });
7854 }
7855
7856 pub fn delete_to_previous_subword_start(
7857 &mut self,
7858 _: &DeleteToPreviousSubwordStart,
7859 cx: &mut ViewContext<Self>,
7860 ) {
7861 self.transact(cx, |this, cx| {
7862 this.select_autoclose_pair(cx);
7863 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7864 let line_mode = s.line_mode;
7865 s.move_with(|map, selection| {
7866 if selection.is_empty() && !line_mode {
7867 let cursor = movement::previous_subword_start(map, selection.head());
7868 selection.set_head(cursor, SelectionGoal::None);
7869 }
7870 });
7871 });
7872 this.insert("", cx);
7873 });
7874 }
7875
7876 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7877 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7878 s.move_cursors_with(|map, head, _| {
7879 (movement::next_word_end(map, head), SelectionGoal::None)
7880 });
7881 })
7882 }
7883
7884 pub fn move_to_next_subword_end(
7885 &mut self,
7886 _: &MoveToNextSubwordEnd,
7887 cx: &mut ViewContext<Self>,
7888 ) {
7889 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7890 s.move_cursors_with(|map, head, _| {
7891 (movement::next_subword_end(map, head), SelectionGoal::None)
7892 });
7893 })
7894 }
7895
7896 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7897 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7898 s.move_heads_with(|map, head, _| {
7899 (movement::next_word_end(map, head), SelectionGoal::None)
7900 });
7901 })
7902 }
7903
7904 pub fn select_to_next_subword_end(
7905 &mut self,
7906 _: &SelectToNextSubwordEnd,
7907 cx: &mut ViewContext<Self>,
7908 ) {
7909 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7910 s.move_heads_with(|map, head, _| {
7911 (movement::next_subword_end(map, head), SelectionGoal::None)
7912 });
7913 })
7914 }
7915
7916 pub fn delete_to_next_word_end(
7917 &mut self,
7918 action: &DeleteToNextWordEnd,
7919 cx: &mut ViewContext<Self>,
7920 ) {
7921 self.transact(cx, |this, cx| {
7922 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7923 let line_mode = s.line_mode;
7924 s.move_with(|map, selection| {
7925 if selection.is_empty() && !line_mode {
7926 let cursor = if action.ignore_newlines {
7927 movement::next_word_end(map, selection.head())
7928 } else {
7929 movement::next_word_end_or_newline(map, selection.head())
7930 };
7931 selection.set_head(cursor, SelectionGoal::None);
7932 }
7933 });
7934 });
7935 this.insert("", cx);
7936 });
7937 }
7938
7939 pub fn delete_to_next_subword_end(
7940 &mut self,
7941 _: &DeleteToNextSubwordEnd,
7942 cx: &mut ViewContext<Self>,
7943 ) {
7944 self.transact(cx, |this, cx| {
7945 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7946 s.move_with(|map, selection| {
7947 if selection.is_empty() {
7948 let cursor = movement::next_subword_end(map, selection.head());
7949 selection.set_head(cursor, SelectionGoal::None);
7950 }
7951 });
7952 });
7953 this.insert("", cx);
7954 });
7955 }
7956
7957 pub fn move_to_beginning_of_line(
7958 &mut self,
7959 action: &MoveToBeginningOfLine,
7960 cx: &mut ViewContext<Self>,
7961 ) {
7962 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7963 s.move_cursors_with(|map, head, _| {
7964 (
7965 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7966 SelectionGoal::None,
7967 )
7968 });
7969 })
7970 }
7971
7972 pub fn select_to_beginning_of_line(
7973 &mut self,
7974 action: &SelectToBeginningOfLine,
7975 cx: &mut ViewContext<Self>,
7976 ) {
7977 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7978 s.move_heads_with(|map, head, _| {
7979 (
7980 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7981 SelectionGoal::None,
7982 )
7983 });
7984 });
7985 }
7986
7987 pub fn delete_to_beginning_of_line(
7988 &mut self,
7989 _: &DeleteToBeginningOfLine,
7990 cx: &mut ViewContext<Self>,
7991 ) {
7992 self.transact(cx, |this, cx| {
7993 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7994 s.move_with(|_, selection| {
7995 selection.reversed = true;
7996 });
7997 });
7998
7999 this.select_to_beginning_of_line(
8000 &SelectToBeginningOfLine {
8001 stop_at_soft_wraps: false,
8002 },
8003 cx,
8004 );
8005 this.backspace(&Backspace, cx);
8006 });
8007 }
8008
8009 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
8010 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8011 s.move_cursors_with(|map, head, _| {
8012 (
8013 movement::line_end(map, head, action.stop_at_soft_wraps),
8014 SelectionGoal::None,
8015 )
8016 });
8017 })
8018 }
8019
8020 pub fn select_to_end_of_line(
8021 &mut self,
8022 action: &SelectToEndOfLine,
8023 cx: &mut ViewContext<Self>,
8024 ) {
8025 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8026 s.move_heads_with(|map, head, _| {
8027 (
8028 movement::line_end(map, head, action.stop_at_soft_wraps),
8029 SelectionGoal::None,
8030 )
8031 });
8032 })
8033 }
8034
8035 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
8036 self.transact(cx, |this, cx| {
8037 this.select_to_end_of_line(
8038 &SelectToEndOfLine {
8039 stop_at_soft_wraps: false,
8040 },
8041 cx,
8042 );
8043 this.delete(&Delete, cx);
8044 });
8045 }
8046
8047 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
8048 self.transact(cx, |this, cx| {
8049 this.select_to_end_of_line(
8050 &SelectToEndOfLine {
8051 stop_at_soft_wraps: false,
8052 },
8053 cx,
8054 );
8055 this.cut(&Cut, cx);
8056 });
8057 }
8058
8059 pub fn move_to_start_of_paragraph(
8060 &mut self,
8061 _: &MoveToStartOfParagraph,
8062 cx: &mut ViewContext<Self>,
8063 ) {
8064 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8065 cx.propagate();
8066 return;
8067 }
8068
8069 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8070 s.move_with(|map, selection| {
8071 selection.collapse_to(
8072 movement::start_of_paragraph(map, selection.head(), 1),
8073 SelectionGoal::None,
8074 )
8075 });
8076 })
8077 }
8078
8079 pub fn move_to_end_of_paragraph(
8080 &mut self,
8081 _: &MoveToEndOfParagraph,
8082 cx: &mut ViewContext<Self>,
8083 ) {
8084 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8085 cx.propagate();
8086 return;
8087 }
8088
8089 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8090 s.move_with(|map, selection| {
8091 selection.collapse_to(
8092 movement::end_of_paragraph(map, selection.head(), 1),
8093 SelectionGoal::None,
8094 )
8095 });
8096 })
8097 }
8098
8099 pub fn select_to_start_of_paragraph(
8100 &mut self,
8101 _: &SelectToStartOfParagraph,
8102 cx: &mut ViewContext<Self>,
8103 ) {
8104 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8105 cx.propagate();
8106 return;
8107 }
8108
8109 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8110 s.move_heads_with(|map, head, _| {
8111 (
8112 movement::start_of_paragraph(map, head, 1),
8113 SelectionGoal::None,
8114 )
8115 });
8116 })
8117 }
8118
8119 pub fn select_to_end_of_paragraph(
8120 &mut self,
8121 _: &SelectToEndOfParagraph,
8122 cx: &mut ViewContext<Self>,
8123 ) {
8124 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8125 cx.propagate();
8126 return;
8127 }
8128
8129 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8130 s.move_heads_with(|map, head, _| {
8131 (
8132 movement::end_of_paragraph(map, head, 1),
8133 SelectionGoal::None,
8134 )
8135 });
8136 })
8137 }
8138
8139 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8140 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8141 cx.propagate();
8142 return;
8143 }
8144
8145 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8146 s.select_ranges(vec![0..0]);
8147 });
8148 }
8149
8150 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8151 let mut selection = self.selections.last::<Point>(cx);
8152 selection.set_head(Point::zero(), SelectionGoal::None);
8153
8154 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8155 s.select(vec![selection]);
8156 });
8157 }
8158
8159 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8160 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8161 cx.propagate();
8162 return;
8163 }
8164
8165 let cursor = self.buffer.read(cx).read(cx).len();
8166 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8167 s.select_ranges(vec![cursor..cursor])
8168 });
8169 }
8170
8171 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8172 self.nav_history = nav_history;
8173 }
8174
8175 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8176 self.nav_history.as_ref()
8177 }
8178
8179 fn push_to_nav_history(
8180 &mut self,
8181 cursor_anchor: Anchor,
8182 new_position: Option<Point>,
8183 cx: &mut ViewContext<Self>,
8184 ) {
8185 if let Some(nav_history) = self.nav_history.as_mut() {
8186 let buffer = self.buffer.read(cx).read(cx);
8187 let cursor_position = cursor_anchor.to_point(&buffer);
8188 let scroll_state = self.scroll_manager.anchor();
8189 let scroll_top_row = scroll_state.top_row(&buffer);
8190 drop(buffer);
8191
8192 if let Some(new_position) = new_position {
8193 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8194 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8195 return;
8196 }
8197 }
8198
8199 nav_history.push(
8200 Some(NavigationData {
8201 cursor_anchor,
8202 cursor_position,
8203 scroll_anchor: scroll_state,
8204 scroll_top_row,
8205 }),
8206 cx,
8207 );
8208 }
8209 }
8210
8211 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8212 let buffer = self.buffer.read(cx).snapshot(cx);
8213 let mut selection = self.selections.first::<usize>(cx);
8214 selection.set_head(buffer.len(), SelectionGoal::None);
8215 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8216 s.select(vec![selection]);
8217 });
8218 }
8219
8220 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8221 let end = self.buffer.read(cx).read(cx).len();
8222 self.change_selections(None, cx, |s| {
8223 s.select_ranges(vec![0..end]);
8224 });
8225 }
8226
8227 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8228 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8229 let mut selections = self.selections.all::<Point>(cx);
8230 let max_point = display_map.buffer_snapshot.max_point();
8231 for selection in &mut selections {
8232 let rows = selection.spanned_rows(true, &display_map);
8233 selection.start = Point::new(rows.start.0, 0);
8234 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8235 selection.reversed = false;
8236 }
8237 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8238 s.select(selections);
8239 });
8240 }
8241
8242 pub fn split_selection_into_lines(
8243 &mut self,
8244 _: &SplitSelectionIntoLines,
8245 cx: &mut ViewContext<Self>,
8246 ) {
8247 let mut to_unfold = Vec::new();
8248 let mut new_selection_ranges = Vec::new();
8249 {
8250 let selections = self.selections.all::<Point>(cx);
8251 let buffer = self.buffer.read(cx).read(cx);
8252 for selection in selections {
8253 for row in selection.start.row..selection.end.row {
8254 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8255 new_selection_ranges.push(cursor..cursor);
8256 }
8257 new_selection_ranges.push(selection.end..selection.end);
8258 to_unfold.push(selection.start..selection.end);
8259 }
8260 }
8261 self.unfold_ranges(to_unfold, true, true, cx);
8262 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8263 s.select_ranges(new_selection_ranges);
8264 });
8265 }
8266
8267 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8268 self.add_selection(true, cx);
8269 }
8270
8271 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8272 self.add_selection(false, cx);
8273 }
8274
8275 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8276 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8277 let mut selections = self.selections.all::<Point>(cx);
8278 let text_layout_details = self.text_layout_details(cx);
8279 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8280 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8281 let range = oldest_selection.display_range(&display_map).sorted();
8282
8283 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8284 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8285 let positions = start_x.min(end_x)..start_x.max(end_x);
8286
8287 selections.clear();
8288 let mut stack = Vec::new();
8289 for row in range.start.row().0..=range.end.row().0 {
8290 if let Some(selection) = self.selections.build_columnar_selection(
8291 &display_map,
8292 DisplayRow(row),
8293 &positions,
8294 oldest_selection.reversed,
8295 &text_layout_details,
8296 ) {
8297 stack.push(selection.id);
8298 selections.push(selection);
8299 }
8300 }
8301
8302 if above {
8303 stack.reverse();
8304 }
8305
8306 AddSelectionsState { above, stack }
8307 });
8308
8309 let last_added_selection = *state.stack.last().unwrap();
8310 let mut new_selections = Vec::new();
8311 if above == state.above {
8312 let end_row = if above {
8313 DisplayRow(0)
8314 } else {
8315 display_map.max_point().row()
8316 };
8317
8318 'outer: for selection in selections {
8319 if selection.id == last_added_selection {
8320 let range = selection.display_range(&display_map).sorted();
8321 debug_assert_eq!(range.start.row(), range.end.row());
8322 let mut row = range.start.row();
8323 let positions =
8324 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8325 px(start)..px(end)
8326 } else {
8327 let start_x =
8328 display_map.x_for_display_point(range.start, &text_layout_details);
8329 let end_x =
8330 display_map.x_for_display_point(range.end, &text_layout_details);
8331 start_x.min(end_x)..start_x.max(end_x)
8332 };
8333
8334 while row != end_row {
8335 if above {
8336 row.0 -= 1;
8337 } else {
8338 row.0 += 1;
8339 }
8340
8341 if let Some(new_selection) = self.selections.build_columnar_selection(
8342 &display_map,
8343 row,
8344 &positions,
8345 selection.reversed,
8346 &text_layout_details,
8347 ) {
8348 state.stack.push(new_selection.id);
8349 if above {
8350 new_selections.push(new_selection);
8351 new_selections.push(selection);
8352 } else {
8353 new_selections.push(selection);
8354 new_selections.push(new_selection);
8355 }
8356
8357 continue 'outer;
8358 }
8359 }
8360 }
8361
8362 new_selections.push(selection);
8363 }
8364 } else {
8365 new_selections = selections;
8366 new_selections.retain(|s| s.id != last_added_selection);
8367 state.stack.pop();
8368 }
8369
8370 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8371 s.select(new_selections);
8372 });
8373 if state.stack.len() > 1 {
8374 self.add_selections_state = Some(state);
8375 }
8376 }
8377
8378 pub fn select_next_match_internal(
8379 &mut self,
8380 display_map: &DisplaySnapshot,
8381 replace_newest: bool,
8382 autoscroll: Option<Autoscroll>,
8383 cx: &mut ViewContext<Self>,
8384 ) -> Result<()> {
8385 fn select_next_match_ranges(
8386 this: &mut Editor,
8387 range: Range<usize>,
8388 replace_newest: bool,
8389 auto_scroll: Option<Autoscroll>,
8390 cx: &mut ViewContext<Editor>,
8391 ) {
8392 this.unfold_ranges([range.clone()], false, true, cx);
8393 this.change_selections(auto_scroll, cx, |s| {
8394 if replace_newest {
8395 s.delete(s.newest_anchor().id);
8396 }
8397 s.insert_range(range.clone());
8398 });
8399 }
8400
8401 let buffer = &display_map.buffer_snapshot;
8402 let mut selections = self.selections.all::<usize>(cx);
8403 if let Some(mut select_next_state) = self.select_next_state.take() {
8404 let query = &select_next_state.query;
8405 if !select_next_state.done {
8406 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8407 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8408 let mut next_selected_range = None;
8409
8410 let bytes_after_last_selection =
8411 buffer.bytes_in_range(last_selection.end..buffer.len());
8412 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8413 let query_matches = query
8414 .stream_find_iter(bytes_after_last_selection)
8415 .map(|result| (last_selection.end, result))
8416 .chain(
8417 query
8418 .stream_find_iter(bytes_before_first_selection)
8419 .map(|result| (0, result)),
8420 );
8421
8422 for (start_offset, query_match) in query_matches {
8423 let query_match = query_match.unwrap(); // can only fail due to I/O
8424 let offset_range =
8425 start_offset + query_match.start()..start_offset + query_match.end();
8426 let display_range = offset_range.start.to_display_point(display_map)
8427 ..offset_range.end.to_display_point(display_map);
8428
8429 if !select_next_state.wordwise
8430 || (!movement::is_inside_word(display_map, display_range.start)
8431 && !movement::is_inside_word(display_map, display_range.end))
8432 {
8433 // TODO: This is n^2, because we might check all the selections
8434 if !selections
8435 .iter()
8436 .any(|selection| selection.range().overlaps(&offset_range))
8437 {
8438 next_selected_range = Some(offset_range);
8439 break;
8440 }
8441 }
8442 }
8443
8444 if let Some(next_selected_range) = next_selected_range {
8445 select_next_match_ranges(
8446 self,
8447 next_selected_range,
8448 replace_newest,
8449 autoscroll,
8450 cx,
8451 );
8452 } else {
8453 select_next_state.done = true;
8454 }
8455 }
8456
8457 self.select_next_state = Some(select_next_state);
8458 } else {
8459 let mut only_carets = true;
8460 let mut same_text_selected = true;
8461 let mut selected_text = None;
8462
8463 let mut selections_iter = selections.iter().peekable();
8464 while let Some(selection) = selections_iter.next() {
8465 if selection.start != selection.end {
8466 only_carets = false;
8467 }
8468
8469 if same_text_selected {
8470 if selected_text.is_none() {
8471 selected_text =
8472 Some(buffer.text_for_range(selection.range()).collect::<String>());
8473 }
8474
8475 if let Some(next_selection) = selections_iter.peek() {
8476 if next_selection.range().len() == selection.range().len() {
8477 let next_selected_text = buffer
8478 .text_for_range(next_selection.range())
8479 .collect::<String>();
8480 if Some(next_selected_text) != selected_text {
8481 same_text_selected = false;
8482 selected_text = None;
8483 }
8484 } else {
8485 same_text_selected = false;
8486 selected_text = None;
8487 }
8488 }
8489 }
8490 }
8491
8492 if only_carets {
8493 for selection in &mut selections {
8494 let word_range = movement::surrounding_word(
8495 display_map,
8496 selection.start.to_display_point(display_map),
8497 );
8498 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8499 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8500 selection.goal = SelectionGoal::None;
8501 selection.reversed = false;
8502 select_next_match_ranges(
8503 self,
8504 selection.start..selection.end,
8505 replace_newest,
8506 autoscroll,
8507 cx,
8508 );
8509 }
8510
8511 if selections.len() == 1 {
8512 let selection = selections
8513 .last()
8514 .expect("ensured that there's only one selection");
8515 let query = buffer
8516 .text_for_range(selection.start..selection.end)
8517 .collect::<String>();
8518 let is_empty = query.is_empty();
8519 let select_state = SelectNextState {
8520 query: AhoCorasick::new(&[query])?,
8521 wordwise: true,
8522 done: is_empty,
8523 };
8524 self.select_next_state = Some(select_state);
8525 } else {
8526 self.select_next_state = None;
8527 }
8528 } else if let Some(selected_text) = selected_text {
8529 self.select_next_state = Some(SelectNextState {
8530 query: AhoCorasick::new(&[selected_text])?,
8531 wordwise: false,
8532 done: false,
8533 });
8534 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8535 }
8536 }
8537 Ok(())
8538 }
8539
8540 pub fn select_all_matches(
8541 &mut self,
8542 _action: &SelectAllMatches,
8543 cx: &mut ViewContext<Self>,
8544 ) -> Result<()> {
8545 self.push_to_selection_history();
8546 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8547
8548 self.select_next_match_internal(&display_map, false, None, cx)?;
8549 let Some(select_next_state) = self.select_next_state.as_mut() else {
8550 return Ok(());
8551 };
8552 if select_next_state.done {
8553 return Ok(());
8554 }
8555
8556 let mut new_selections = self.selections.all::<usize>(cx);
8557
8558 let buffer = &display_map.buffer_snapshot;
8559 let query_matches = select_next_state
8560 .query
8561 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8562
8563 for query_match in query_matches {
8564 let query_match = query_match.unwrap(); // can only fail due to I/O
8565 let offset_range = query_match.start()..query_match.end();
8566 let display_range = offset_range.start.to_display_point(&display_map)
8567 ..offset_range.end.to_display_point(&display_map);
8568
8569 if !select_next_state.wordwise
8570 || (!movement::is_inside_word(&display_map, display_range.start)
8571 && !movement::is_inside_word(&display_map, display_range.end))
8572 {
8573 self.selections.change_with(cx, |selections| {
8574 new_selections.push(Selection {
8575 id: selections.new_selection_id(),
8576 start: offset_range.start,
8577 end: offset_range.end,
8578 reversed: false,
8579 goal: SelectionGoal::None,
8580 });
8581 });
8582 }
8583 }
8584
8585 new_selections.sort_by_key(|selection| selection.start);
8586 let mut ix = 0;
8587 while ix + 1 < new_selections.len() {
8588 let current_selection = &new_selections[ix];
8589 let next_selection = &new_selections[ix + 1];
8590 if current_selection.range().overlaps(&next_selection.range()) {
8591 if current_selection.id < next_selection.id {
8592 new_selections.remove(ix + 1);
8593 } else {
8594 new_selections.remove(ix);
8595 }
8596 } else {
8597 ix += 1;
8598 }
8599 }
8600
8601 select_next_state.done = true;
8602 self.unfold_ranges(
8603 new_selections.iter().map(|selection| selection.range()),
8604 false,
8605 false,
8606 cx,
8607 );
8608 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8609 selections.select(new_selections)
8610 });
8611
8612 Ok(())
8613 }
8614
8615 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8616 self.push_to_selection_history();
8617 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8618 self.select_next_match_internal(
8619 &display_map,
8620 action.replace_newest,
8621 Some(Autoscroll::newest()),
8622 cx,
8623 )?;
8624 Ok(())
8625 }
8626
8627 pub fn select_previous(
8628 &mut self,
8629 action: &SelectPrevious,
8630 cx: &mut ViewContext<Self>,
8631 ) -> Result<()> {
8632 self.push_to_selection_history();
8633 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8634 let buffer = &display_map.buffer_snapshot;
8635 let mut selections = self.selections.all::<usize>(cx);
8636 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8637 let query = &select_prev_state.query;
8638 if !select_prev_state.done {
8639 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8640 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8641 let mut next_selected_range = None;
8642 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8643 let bytes_before_last_selection =
8644 buffer.reversed_bytes_in_range(0..last_selection.start);
8645 let bytes_after_first_selection =
8646 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8647 let query_matches = query
8648 .stream_find_iter(bytes_before_last_selection)
8649 .map(|result| (last_selection.start, result))
8650 .chain(
8651 query
8652 .stream_find_iter(bytes_after_first_selection)
8653 .map(|result| (buffer.len(), result)),
8654 );
8655 for (end_offset, query_match) in query_matches {
8656 let query_match = query_match.unwrap(); // can only fail due to I/O
8657 let offset_range =
8658 end_offset - query_match.end()..end_offset - query_match.start();
8659 let display_range = offset_range.start.to_display_point(&display_map)
8660 ..offset_range.end.to_display_point(&display_map);
8661
8662 if !select_prev_state.wordwise
8663 || (!movement::is_inside_word(&display_map, display_range.start)
8664 && !movement::is_inside_word(&display_map, display_range.end))
8665 {
8666 next_selected_range = Some(offset_range);
8667 break;
8668 }
8669 }
8670
8671 if let Some(next_selected_range) = next_selected_range {
8672 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
8673 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8674 if action.replace_newest {
8675 s.delete(s.newest_anchor().id);
8676 }
8677 s.insert_range(next_selected_range);
8678 });
8679 } else {
8680 select_prev_state.done = true;
8681 }
8682 }
8683
8684 self.select_prev_state = Some(select_prev_state);
8685 } else {
8686 let mut only_carets = true;
8687 let mut same_text_selected = true;
8688 let mut selected_text = None;
8689
8690 let mut selections_iter = selections.iter().peekable();
8691 while let Some(selection) = selections_iter.next() {
8692 if selection.start != selection.end {
8693 only_carets = false;
8694 }
8695
8696 if same_text_selected {
8697 if selected_text.is_none() {
8698 selected_text =
8699 Some(buffer.text_for_range(selection.range()).collect::<String>());
8700 }
8701
8702 if let Some(next_selection) = selections_iter.peek() {
8703 if next_selection.range().len() == selection.range().len() {
8704 let next_selected_text = buffer
8705 .text_for_range(next_selection.range())
8706 .collect::<String>();
8707 if Some(next_selected_text) != selected_text {
8708 same_text_selected = false;
8709 selected_text = None;
8710 }
8711 } else {
8712 same_text_selected = false;
8713 selected_text = None;
8714 }
8715 }
8716 }
8717 }
8718
8719 if only_carets {
8720 for selection in &mut selections {
8721 let word_range = movement::surrounding_word(
8722 &display_map,
8723 selection.start.to_display_point(&display_map),
8724 );
8725 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8726 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8727 selection.goal = SelectionGoal::None;
8728 selection.reversed = false;
8729 }
8730 if selections.len() == 1 {
8731 let selection = selections
8732 .last()
8733 .expect("ensured that there's only one selection");
8734 let query = buffer
8735 .text_for_range(selection.start..selection.end)
8736 .collect::<String>();
8737 let is_empty = query.is_empty();
8738 let select_state = SelectNextState {
8739 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8740 wordwise: true,
8741 done: is_empty,
8742 };
8743 self.select_prev_state = Some(select_state);
8744 } else {
8745 self.select_prev_state = None;
8746 }
8747
8748 self.unfold_ranges(
8749 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8750 false,
8751 true,
8752 cx,
8753 );
8754 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8755 s.select(selections);
8756 });
8757 } else if let Some(selected_text) = selected_text {
8758 self.select_prev_state = Some(SelectNextState {
8759 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8760 wordwise: false,
8761 done: false,
8762 });
8763 self.select_previous(action, cx)?;
8764 }
8765 }
8766 Ok(())
8767 }
8768
8769 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8770 let text_layout_details = &self.text_layout_details(cx);
8771 self.transact(cx, |this, cx| {
8772 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8773 let mut edits = Vec::new();
8774 let mut selection_edit_ranges = Vec::new();
8775 let mut last_toggled_row = None;
8776 let snapshot = this.buffer.read(cx).read(cx);
8777 let empty_str: Arc<str> = Arc::default();
8778 let mut suffixes_inserted = Vec::new();
8779 let ignore_indent = action.ignore_indent;
8780
8781 fn comment_prefix_range(
8782 snapshot: &MultiBufferSnapshot,
8783 row: MultiBufferRow,
8784 comment_prefix: &str,
8785 comment_prefix_whitespace: &str,
8786 ignore_indent: bool,
8787 ) -> Range<Point> {
8788 let indent_size = if ignore_indent {
8789 0
8790 } else {
8791 snapshot.indent_size_for_line(row).len
8792 };
8793
8794 let start = Point::new(row.0, indent_size);
8795
8796 let mut line_bytes = snapshot
8797 .bytes_in_range(start..snapshot.max_point())
8798 .flatten()
8799 .copied();
8800
8801 // If this line currently begins with the line comment prefix, then record
8802 // the range containing the prefix.
8803 if line_bytes
8804 .by_ref()
8805 .take(comment_prefix.len())
8806 .eq(comment_prefix.bytes())
8807 {
8808 // Include any whitespace that matches the comment prefix.
8809 let matching_whitespace_len = line_bytes
8810 .zip(comment_prefix_whitespace.bytes())
8811 .take_while(|(a, b)| a == b)
8812 .count() as u32;
8813 let end = Point::new(
8814 start.row,
8815 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8816 );
8817 start..end
8818 } else {
8819 start..start
8820 }
8821 }
8822
8823 fn comment_suffix_range(
8824 snapshot: &MultiBufferSnapshot,
8825 row: MultiBufferRow,
8826 comment_suffix: &str,
8827 comment_suffix_has_leading_space: bool,
8828 ) -> Range<Point> {
8829 let end = Point::new(row.0, snapshot.line_len(row));
8830 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8831
8832 let mut line_end_bytes = snapshot
8833 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8834 .flatten()
8835 .copied();
8836
8837 let leading_space_len = if suffix_start_column > 0
8838 && line_end_bytes.next() == Some(b' ')
8839 && comment_suffix_has_leading_space
8840 {
8841 1
8842 } else {
8843 0
8844 };
8845
8846 // If this line currently begins with the line comment prefix, then record
8847 // the range containing the prefix.
8848 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8849 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8850 start..end
8851 } else {
8852 end..end
8853 }
8854 }
8855
8856 // TODO: Handle selections that cross excerpts
8857 for selection in &mut selections {
8858 let start_column = snapshot
8859 .indent_size_for_line(MultiBufferRow(selection.start.row))
8860 .len;
8861 let language = if let Some(language) =
8862 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8863 {
8864 language
8865 } else {
8866 continue;
8867 };
8868
8869 selection_edit_ranges.clear();
8870
8871 // If multiple selections contain a given row, avoid processing that
8872 // row more than once.
8873 let mut start_row = MultiBufferRow(selection.start.row);
8874 if last_toggled_row == Some(start_row) {
8875 start_row = start_row.next_row();
8876 }
8877 let end_row =
8878 if selection.end.row > selection.start.row && selection.end.column == 0 {
8879 MultiBufferRow(selection.end.row - 1)
8880 } else {
8881 MultiBufferRow(selection.end.row)
8882 };
8883 last_toggled_row = Some(end_row);
8884
8885 if start_row > end_row {
8886 continue;
8887 }
8888
8889 // If the language has line comments, toggle those.
8890 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8891
8892 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8893 if ignore_indent {
8894 full_comment_prefixes = full_comment_prefixes
8895 .into_iter()
8896 .map(|s| Arc::from(s.trim_end()))
8897 .collect();
8898 }
8899
8900 if !full_comment_prefixes.is_empty() {
8901 let first_prefix = full_comment_prefixes
8902 .first()
8903 .expect("prefixes is non-empty");
8904 let prefix_trimmed_lengths = full_comment_prefixes
8905 .iter()
8906 .map(|p| p.trim_end_matches(' ').len())
8907 .collect::<SmallVec<[usize; 4]>>();
8908
8909 let mut all_selection_lines_are_comments = true;
8910
8911 for row in start_row.0..=end_row.0 {
8912 let row = MultiBufferRow(row);
8913 if start_row < end_row && snapshot.is_line_blank(row) {
8914 continue;
8915 }
8916
8917 let prefix_range = full_comment_prefixes
8918 .iter()
8919 .zip(prefix_trimmed_lengths.iter().copied())
8920 .map(|(prefix, trimmed_prefix_len)| {
8921 comment_prefix_range(
8922 snapshot.deref(),
8923 row,
8924 &prefix[..trimmed_prefix_len],
8925 &prefix[trimmed_prefix_len..],
8926 ignore_indent,
8927 )
8928 })
8929 .max_by_key(|range| range.end.column - range.start.column)
8930 .expect("prefixes is non-empty");
8931
8932 if prefix_range.is_empty() {
8933 all_selection_lines_are_comments = false;
8934 }
8935
8936 selection_edit_ranges.push(prefix_range);
8937 }
8938
8939 if all_selection_lines_are_comments {
8940 edits.extend(
8941 selection_edit_ranges
8942 .iter()
8943 .cloned()
8944 .map(|range| (range, empty_str.clone())),
8945 );
8946 } else {
8947 let min_column = selection_edit_ranges
8948 .iter()
8949 .map(|range| range.start.column)
8950 .min()
8951 .unwrap_or(0);
8952 edits.extend(selection_edit_ranges.iter().map(|range| {
8953 let position = Point::new(range.start.row, min_column);
8954 (position..position, first_prefix.clone())
8955 }));
8956 }
8957 } else if let Some((full_comment_prefix, comment_suffix)) =
8958 language.block_comment_delimiters()
8959 {
8960 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8961 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8962 let prefix_range = comment_prefix_range(
8963 snapshot.deref(),
8964 start_row,
8965 comment_prefix,
8966 comment_prefix_whitespace,
8967 ignore_indent,
8968 );
8969 let suffix_range = comment_suffix_range(
8970 snapshot.deref(),
8971 end_row,
8972 comment_suffix.trim_start_matches(' '),
8973 comment_suffix.starts_with(' '),
8974 );
8975
8976 if prefix_range.is_empty() || suffix_range.is_empty() {
8977 edits.push((
8978 prefix_range.start..prefix_range.start,
8979 full_comment_prefix.clone(),
8980 ));
8981 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8982 suffixes_inserted.push((end_row, comment_suffix.len()));
8983 } else {
8984 edits.push((prefix_range, empty_str.clone()));
8985 edits.push((suffix_range, empty_str.clone()));
8986 }
8987 } else {
8988 continue;
8989 }
8990 }
8991
8992 drop(snapshot);
8993 this.buffer.update(cx, |buffer, cx| {
8994 buffer.edit(edits, None, cx);
8995 });
8996
8997 // Adjust selections so that they end before any comment suffixes that
8998 // were inserted.
8999 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
9000 let mut selections = this.selections.all::<Point>(cx);
9001 let snapshot = this.buffer.read(cx).read(cx);
9002 for selection in &mut selections {
9003 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9004 match row.cmp(&MultiBufferRow(selection.end.row)) {
9005 Ordering::Less => {
9006 suffixes_inserted.next();
9007 continue;
9008 }
9009 Ordering::Greater => break,
9010 Ordering::Equal => {
9011 if selection.end.column == snapshot.line_len(row) {
9012 if selection.is_empty() {
9013 selection.start.column -= suffix_len as u32;
9014 }
9015 selection.end.column -= suffix_len as u32;
9016 }
9017 break;
9018 }
9019 }
9020 }
9021 }
9022
9023 drop(snapshot);
9024 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
9025
9026 let selections = this.selections.all::<Point>(cx);
9027 let selections_on_single_row = selections.windows(2).all(|selections| {
9028 selections[0].start.row == selections[1].start.row
9029 && selections[0].end.row == selections[1].end.row
9030 && selections[0].start.row == selections[0].end.row
9031 });
9032 let selections_selecting = selections
9033 .iter()
9034 .any(|selection| selection.start != selection.end);
9035 let advance_downwards = action.advance_downwards
9036 && selections_on_single_row
9037 && !selections_selecting
9038 && !matches!(this.mode, EditorMode::SingleLine { .. });
9039
9040 if advance_downwards {
9041 let snapshot = this.buffer.read(cx).snapshot(cx);
9042
9043 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
9044 s.move_cursors_with(|display_snapshot, display_point, _| {
9045 let mut point = display_point.to_point(display_snapshot);
9046 point.row += 1;
9047 point = snapshot.clip_point(point, Bias::Left);
9048 let display_point = point.to_display_point(display_snapshot);
9049 let goal = SelectionGoal::HorizontalPosition(
9050 display_snapshot
9051 .x_for_display_point(display_point, text_layout_details)
9052 .into(),
9053 );
9054 (display_point, goal)
9055 })
9056 });
9057 }
9058 });
9059 }
9060
9061 pub fn select_enclosing_symbol(
9062 &mut self,
9063 _: &SelectEnclosingSymbol,
9064 cx: &mut ViewContext<Self>,
9065 ) {
9066 let buffer = self.buffer.read(cx).snapshot(cx);
9067 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9068
9069 fn update_selection(
9070 selection: &Selection<usize>,
9071 buffer_snap: &MultiBufferSnapshot,
9072 ) -> Option<Selection<usize>> {
9073 let cursor = selection.head();
9074 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9075 for symbol in symbols.iter().rev() {
9076 let start = symbol.range.start.to_offset(buffer_snap);
9077 let end = symbol.range.end.to_offset(buffer_snap);
9078 let new_range = start..end;
9079 if start < selection.start || end > selection.end {
9080 return Some(Selection {
9081 id: selection.id,
9082 start: new_range.start,
9083 end: new_range.end,
9084 goal: SelectionGoal::None,
9085 reversed: selection.reversed,
9086 });
9087 }
9088 }
9089 None
9090 }
9091
9092 let mut selected_larger_symbol = false;
9093 let new_selections = old_selections
9094 .iter()
9095 .map(|selection| match update_selection(selection, &buffer) {
9096 Some(new_selection) => {
9097 if new_selection.range() != selection.range() {
9098 selected_larger_symbol = true;
9099 }
9100 new_selection
9101 }
9102 None => selection.clone(),
9103 })
9104 .collect::<Vec<_>>();
9105
9106 if selected_larger_symbol {
9107 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9108 s.select(new_selections);
9109 });
9110 }
9111 }
9112
9113 pub fn select_larger_syntax_node(
9114 &mut self,
9115 _: &SelectLargerSyntaxNode,
9116 cx: &mut ViewContext<Self>,
9117 ) {
9118 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9119 let buffer = self.buffer.read(cx).snapshot(cx);
9120 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9121
9122 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9123 let mut selected_larger_node = false;
9124 let new_selections = old_selections
9125 .iter()
9126 .map(|selection| {
9127 let old_range = selection.start..selection.end;
9128 let mut new_range = old_range.clone();
9129 while let Some(containing_range) =
9130 buffer.range_for_syntax_ancestor(new_range.clone())
9131 {
9132 new_range = containing_range;
9133 if !display_map.intersects_fold(new_range.start)
9134 && !display_map.intersects_fold(new_range.end)
9135 {
9136 break;
9137 }
9138 }
9139
9140 selected_larger_node |= new_range != old_range;
9141 Selection {
9142 id: selection.id,
9143 start: new_range.start,
9144 end: new_range.end,
9145 goal: SelectionGoal::None,
9146 reversed: selection.reversed,
9147 }
9148 })
9149 .collect::<Vec<_>>();
9150
9151 if selected_larger_node {
9152 stack.push(old_selections);
9153 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9154 s.select(new_selections);
9155 });
9156 }
9157 self.select_larger_syntax_node_stack = stack;
9158 }
9159
9160 pub fn select_smaller_syntax_node(
9161 &mut self,
9162 _: &SelectSmallerSyntaxNode,
9163 cx: &mut ViewContext<Self>,
9164 ) {
9165 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9166 if let Some(selections) = stack.pop() {
9167 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9168 s.select(selections.to_vec());
9169 });
9170 }
9171 self.select_larger_syntax_node_stack = stack;
9172 }
9173
9174 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9175 if !EditorSettings::get_global(cx).gutter.runnables {
9176 self.clear_tasks();
9177 return Task::ready(());
9178 }
9179 let project = self.project.clone();
9180 cx.spawn(|this, mut cx| async move {
9181 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9182 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9183 }) else {
9184 return;
9185 };
9186
9187 let Some(project) = project else {
9188 return;
9189 };
9190
9191 let hide_runnables = project
9192 .update(&mut cx, |project, cx| {
9193 // Do not display any test indicators in non-dev server remote projects.
9194 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9195 })
9196 .unwrap_or(true);
9197 if hide_runnables {
9198 return;
9199 }
9200 let new_rows =
9201 cx.background_executor()
9202 .spawn({
9203 let snapshot = display_snapshot.clone();
9204 async move {
9205 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9206 }
9207 })
9208 .await;
9209 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9210
9211 this.update(&mut cx, |this, _| {
9212 this.clear_tasks();
9213 for (key, value) in rows {
9214 this.insert_tasks(key, value);
9215 }
9216 })
9217 .ok();
9218 })
9219 }
9220 fn fetch_runnable_ranges(
9221 snapshot: &DisplaySnapshot,
9222 range: Range<Anchor>,
9223 ) -> Vec<language::RunnableRange> {
9224 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9225 }
9226
9227 fn runnable_rows(
9228 project: Model<Project>,
9229 snapshot: DisplaySnapshot,
9230 runnable_ranges: Vec<RunnableRange>,
9231 mut cx: AsyncWindowContext,
9232 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9233 runnable_ranges
9234 .into_iter()
9235 .filter_map(|mut runnable| {
9236 let tasks = cx
9237 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9238 .ok()?;
9239 if tasks.is_empty() {
9240 return None;
9241 }
9242
9243 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9244
9245 let row = snapshot
9246 .buffer_snapshot
9247 .buffer_line_for_row(MultiBufferRow(point.row))?
9248 .1
9249 .start
9250 .row;
9251
9252 let context_range =
9253 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9254 Some((
9255 (runnable.buffer_id, row),
9256 RunnableTasks {
9257 templates: tasks,
9258 offset: MultiBufferOffset(runnable.run_range.start),
9259 context_range,
9260 column: point.column,
9261 extra_variables: runnable.extra_captures,
9262 },
9263 ))
9264 })
9265 .collect()
9266 }
9267
9268 fn templates_with_tags(
9269 project: &Model<Project>,
9270 runnable: &mut Runnable,
9271 cx: &WindowContext<'_>,
9272 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9273 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9274 let (worktree_id, file) = project
9275 .buffer_for_id(runnable.buffer, cx)
9276 .and_then(|buffer| buffer.read(cx).file())
9277 .map(|file| (file.worktree_id(cx), file.clone()))
9278 .unzip();
9279
9280 (
9281 project.task_store().read(cx).task_inventory().cloned(),
9282 worktree_id,
9283 file,
9284 )
9285 });
9286
9287 let tags = mem::take(&mut runnable.tags);
9288 let mut tags: Vec<_> = tags
9289 .into_iter()
9290 .flat_map(|tag| {
9291 let tag = tag.0.clone();
9292 inventory
9293 .as_ref()
9294 .into_iter()
9295 .flat_map(|inventory| {
9296 inventory.read(cx).list_tasks(
9297 file.clone(),
9298 Some(runnable.language.clone()),
9299 worktree_id,
9300 cx,
9301 )
9302 })
9303 .filter(move |(_, template)| {
9304 template.tags.iter().any(|source_tag| source_tag == &tag)
9305 })
9306 })
9307 .sorted_by_key(|(kind, _)| kind.to_owned())
9308 .collect();
9309 if let Some((leading_tag_source, _)) = tags.first() {
9310 // Strongest source wins; if we have worktree tag binding, prefer that to
9311 // global and language bindings;
9312 // if we have a global binding, prefer that to language binding.
9313 let first_mismatch = tags
9314 .iter()
9315 .position(|(tag_source, _)| tag_source != leading_tag_source);
9316 if let Some(index) = first_mismatch {
9317 tags.truncate(index);
9318 }
9319 }
9320
9321 tags
9322 }
9323
9324 pub fn move_to_enclosing_bracket(
9325 &mut self,
9326 _: &MoveToEnclosingBracket,
9327 cx: &mut ViewContext<Self>,
9328 ) {
9329 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9330 s.move_offsets_with(|snapshot, selection| {
9331 let Some(enclosing_bracket_ranges) =
9332 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9333 else {
9334 return;
9335 };
9336
9337 let mut best_length = usize::MAX;
9338 let mut best_inside = false;
9339 let mut best_in_bracket_range = false;
9340 let mut best_destination = None;
9341 for (open, close) in enclosing_bracket_ranges {
9342 let close = close.to_inclusive();
9343 let length = close.end() - open.start;
9344 let inside = selection.start >= open.end && selection.end <= *close.start();
9345 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9346 || close.contains(&selection.head());
9347
9348 // If best is next to a bracket and current isn't, skip
9349 if !in_bracket_range && best_in_bracket_range {
9350 continue;
9351 }
9352
9353 // Prefer smaller lengths unless best is inside and current isn't
9354 if length > best_length && (best_inside || !inside) {
9355 continue;
9356 }
9357
9358 best_length = length;
9359 best_inside = inside;
9360 best_in_bracket_range = in_bracket_range;
9361 best_destination = Some(
9362 if close.contains(&selection.start) && close.contains(&selection.end) {
9363 if inside {
9364 open.end
9365 } else {
9366 open.start
9367 }
9368 } else if inside {
9369 *close.start()
9370 } else {
9371 *close.end()
9372 },
9373 );
9374 }
9375
9376 if let Some(destination) = best_destination {
9377 selection.collapse_to(destination, SelectionGoal::None);
9378 }
9379 })
9380 });
9381 }
9382
9383 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9384 self.end_selection(cx);
9385 self.selection_history.mode = SelectionHistoryMode::Undoing;
9386 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9387 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9388 self.select_next_state = entry.select_next_state;
9389 self.select_prev_state = entry.select_prev_state;
9390 self.add_selections_state = entry.add_selections_state;
9391 self.request_autoscroll(Autoscroll::newest(), cx);
9392 }
9393 self.selection_history.mode = SelectionHistoryMode::Normal;
9394 }
9395
9396 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9397 self.end_selection(cx);
9398 self.selection_history.mode = SelectionHistoryMode::Redoing;
9399 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9400 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9401 self.select_next_state = entry.select_next_state;
9402 self.select_prev_state = entry.select_prev_state;
9403 self.add_selections_state = entry.add_selections_state;
9404 self.request_autoscroll(Autoscroll::newest(), cx);
9405 }
9406 self.selection_history.mode = SelectionHistoryMode::Normal;
9407 }
9408
9409 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9410 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9411 }
9412
9413 pub fn expand_excerpts_down(
9414 &mut self,
9415 action: &ExpandExcerptsDown,
9416 cx: &mut ViewContext<Self>,
9417 ) {
9418 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9419 }
9420
9421 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9422 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9423 }
9424
9425 pub fn expand_excerpts_for_direction(
9426 &mut self,
9427 lines: u32,
9428 direction: ExpandExcerptDirection,
9429 cx: &mut ViewContext<Self>,
9430 ) {
9431 let selections = self.selections.disjoint_anchors();
9432
9433 let lines = if lines == 0 {
9434 EditorSettings::get_global(cx).expand_excerpt_lines
9435 } else {
9436 lines
9437 };
9438
9439 self.buffer.update(cx, |buffer, cx| {
9440 buffer.expand_excerpts(
9441 selections
9442 .iter()
9443 .map(|selection| selection.head().excerpt_id)
9444 .dedup(),
9445 lines,
9446 direction,
9447 cx,
9448 )
9449 })
9450 }
9451
9452 pub fn expand_excerpt(
9453 &mut self,
9454 excerpt: ExcerptId,
9455 direction: ExpandExcerptDirection,
9456 cx: &mut ViewContext<Self>,
9457 ) {
9458 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9459 self.buffer.update(cx, |buffer, cx| {
9460 buffer.expand_excerpts([excerpt], lines, direction, cx)
9461 })
9462 }
9463
9464 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9465 self.go_to_diagnostic_impl(Direction::Next, cx)
9466 }
9467
9468 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9469 self.go_to_diagnostic_impl(Direction::Prev, cx)
9470 }
9471
9472 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9473 let buffer = self.buffer.read(cx).snapshot(cx);
9474 let selection = self.selections.newest::<usize>(cx);
9475
9476 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9477 if direction == Direction::Next {
9478 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9479 let (group_id, jump_to) = popover.activation_info();
9480 if self.activate_diagnostics(group_id, cx) {
9481 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9482 let mut new_selection = s.newest_anchor().clone();
9483 new_selection.collapse_to(jump_to, SelectionGoal::None);
9484 s.select_anchors(vec![new_selection.clone()]);
9485 });
9486 }
9487 return;
9488 }
9489 }
9490
9491 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9492 active_diagnostics
9493 .primary_range
9494 .to_offset(&buffer)
9495 .to_inclusive()
9496 });
9497 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9498 if active_primary_range.contains(&selection.head()) {
9499 *active_primary_range.start()
9500 } else {
9501 selection.head()
9502 }
9503 } else {
9504 selection.head()
9505 };
9506 let snapshot = self.snapshot(cx);
9507 loop {
9508 let diagnostics = if direction == Direction::Prev {
9509 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9510 } else {
9511 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9512 }
9513 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9514 let group = diagnostics
9515 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9516 // be sorted in a stable way
9517 // skip until we are at current active diagnostic, if it exists
9518 .skip_while(|entry| {
9519 (match direction {
9520 Direction::Prev => entry.range.start >= search_start,
9521 Direction::Next => entry.range.start <= search_start,
9522 }) && self
9523 .active_diagnostics
9524 .as_ref()
9525 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9526 })
9527 .find_map(|entry| {
9528 if entry.diagnostic.is_primary
9529 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9530 && !entry.range.is_empty()
9531 // if we match with the active diagnostic, skip it
9532 && Some(entry.diagnostic.group_id)
9533 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9534 {
9535 Some((entry.range, entry.diagnostic.group_id))
9536 } else {
9537 None
9538 }
9539 });
9540
9541 if let Some((primary_range, group_id)) = group {
9542 if self.activate_diagnostics(group_id, cx) {
9543 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9544 s.select(vec![Selection {
9545 id: selection.id,
9546 start: primary_range.start,
9547 end: primary_range.start,
9548 reversed: false,
9549 goal: SelectionGoal::None,
9550 }]);
9551 });
9552 }
9553 break;
9554 } else {
9555 // Cycle around to the start of the buffer, potentially moving back to the start of
9556 // the currently active diagnostic.
9557 active_primary_range.take();
9558 if direction == Direction::Prev {
9559 if search_start == buffer.len() {
9560 break;
9561 } else {
9562 search_start = buffer.len();
9563 }
9564 } else if search_start == 0 {
9565 break;
9566 } else {
9567 search_start = 0;
9568 }
9569 }
9570 }
9571 }
9572
9573 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9574 let snapshot = self
9575 .display_map
9576 .update(cx, |display_map, cx| display_map.snapshot(cx));
9577 let selection = self.selections.newest::<Point>(cx);
9578 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9579 }
9580
9581 fn go_to_hunk_after_position(
9582 &mut self,
9583 snapshot: &DisplaySnapshot,
9584 position: Point,
9585 cx: &mut ViewContext<'_, Editor>,
9586 ) -> Option<MultiBufferDiffHunk> {
9587 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9588 snapshot,
9589 position,
9590 false,
9591 snapshot
9592 .buffer_snapshot
9593 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9594 cx,
9595 ) {
9596 return Some(hunk);
9597 }
9598
9599 let wrapped_point = Point::zero();
9600 self.go_to_next_hunk_in_direction(
9601 snapshot,
9602 wrapped_point,
9603 true,
9604 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9605 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9606 ),
9607 cx,
9608 )
9609 }
9610
9611 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9612 let snapshot = self
9613 .display_map
9614 .update(cx, |display_map, cx| display_map.snapshot(cx));
9615 let selection = self.selections.newest::<Point>(cx);
9616
9617 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9618 }
9619
9620 fn go_to_hunk_before_position(
9621 &mut self,
9622 snapshot: &DisplaySnapshot,
9623 position: Point,
9624 cx: &mut ViewContext<'_, Editor>,
9625 ) -> Option<MultiBufferDiffHunk> {
9626 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9627 snapshot,
9628 position,
9629 false,
9630 snapshot
9631 .buffer_snapshot
9632 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9633 cx,
9634 ) {
9635 return Some(hunk);
9636 }
9637
9638 let wrapped_point = snapshot.buffer_snapshot.max_point();
9639 self.go_to_next_hunk_in_direction(
9640 snapshot,
9641 wrapped_point,
9642 true,
9643 snapshot
9644 .buffer_snapshot
9645 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9646 cx,
9647 )
9648 }
9649
9650 fn go_to_next_hunk_in_direction(
9651 &mut self,
9652 snapshot: &DisplaySnapshot,
9653 initial_point: Point,
9654 is_wrapped: bool,
9655 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9656 cx: &mut ViewContext<Editor>,
9657 ) -> Option<MultiBufferDiffHunk> {
9658 let display_point = initial_point.to_display_point(snapshot);
9659 let mut hunks = hunks
9660 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9661 .filter(|(display_hunk, _)| {
9662 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9663 })
9664 .dedup();
9665
9666 if let Some((display_hunk, hunk)) = hunks.next() {
9667 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9668 let row = display_hunk.start_display_row();
9669 let point = DisplayPoint::new(row, 0);
9670 s.select_display_ranges([point..point]);
9671 });
9672
9673 Some(hunk)
9674 } else {
9675 None
9676 }
9677 }
9678
9679 pub fn go_to_definition(
9680 &mut self,
9681 _: &GoToDefinition,
9682 cx: &mut ViewContext<Self>,
9683 ) -> Task<Result<Navigated>> {
9684 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9685 cx.spawn(|editor, mut cx| async move {
9686 if definition.await? == Navigated::Yes {
9687 return Ok(Navigated::Yes);
9688 }
9689 match editor.update(&mut cx, |editor, cx| {
9690 editor.find_all_references(&FindAllReferences, cx)
9691 })? {
9692 Some(references) => references.await,
9693 None => Ok(Navigated::No),
9694 }
9695 })
9696 }
9697
9698 pub fn go_to_declaration(
9699 &mut self,
9700 _: &GoToDeclaration,
9701 cx: &mut ViewContext<Self>,
9702 ) -> Task<Result<Navigated>> {
9703 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9704 }
9705
9706 pub fn go_to_declaration_split(
9707 &mut self,
9708 _: &GoToDeclaration,
9709 cx: &mut ViewContext<Self>,
9710 ) -> Task<Result<Navigated>> {
9711 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9712 }
9713
9714 pub fn go_to_implementation(
9715 &mut self,
9716 _: &GoToImplementation,
9717 cx: &mut ViewContext<Self>,
9718 ) -> Task<Result<Navigated>> {
9719 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9720 }
9721
9722 pub fn go_to_implementation_split(
9723 &mut self,
9724 _: &GoToImplementationSplit,
9725 cx: &mut ViewContext<Self>,
9726 ) -> Task<Result<Navigated>> {
9727 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9728 }
9729
9730 pub fn go_to_type_definition(
9731 &mut self,
9732 _: &GoToTypeDefinition,
9733 cx: &mut ViewContext<Self>,
9734 ) -> Task<Result<Navigated>> {
9735 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9736 }
9737
9738 pub fn go_to_definition_split(
9739 &mut self,
9740 _: &GoToDefinitionSplit,
9741 cx: &mut ViewContext<Self>,
9742 ) -> Task<Result<Navigated>> {
9743 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9744 }
9745
9746 pub fn go_to_type_definition_split(
9747 &mut self,
9748 _: &GoToTypeDefinitionSplit,
9749 cx: &mut ViewContext<Self>,
9750 ) -> Task<Result<Navigated>> {
9751 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9752 }
9753
9754 fn go_to_definition_of_kind(
9755 &mut self,
9756 kind: GotoDefinitionKind,
9757 split: bool,
9758 cx: &mut ViewContext<Self>,
9759 ) -> Task<Result<Navigated>> {
9760 let Some(provider) = self.semantics_provider.clone() else {
9761 return Task::ready(Ok(Navigated::No));
9762 };
9763 let head = self.selections.newest::<usize>(cx).head();
9764 let buffer = self.buffer.read(cx);
9765 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9766 text_anchor
9767 } else {
9768 return Task::ready(Ok(Navigated::No));
9769 };
9770
9771 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9772 return Task::ready(Ok(Navigated::No));
9773 };
9774
9775 cx.spawn(|editor, mut cx| async move {
9776 let definitions = definitions.await?;
9777 let navigated = editor
9778 .update(&mut cx, |editor, cx| {
9779 editor.navigate_to_hover_links(
9780 Some(kind),
9781 definitions
9782 .into_iter()
9783 .filter(|location| {
9784 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9785 })
9786 .map(HoverLink::Text)
9787 .collect::<Vec<_>>(),
9788 split,
9789 cx,
9790 )
9791 })?
9792 .await?;
9793 anyhow::Ok(navigated)
9794 })
9795 }
9796
9797 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9798 let position = self.selections.newest_anchor().head();
9799 let Some((buffer, buffer_position)) =
9800 self.buffer.read(cx).text_anchor_for_position(position, cx)
9801 else {
9802 return;
9803 };
9804
9805 cx.spawn(|editor, mut cx| async move {
9806 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9807 editor.update(&mut cx, |_, cx| {
9808 cx.open_url(&url);
9809 })
9810 } else {
9811 Ok(())
9812 }
9813 })
9814 .detach();
9815 }
9816
9817 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9818 let Some(workspace) = self.workspace() else {
9819 return;
9820 };
9821
9822 let position = self.selections.newest_anchor().head();
9823
9824 let Some((buffer, buffer_position)) =
9825 self.buffer.read(cx).text_anchor_for_position(position, cx)
9826 else {
9827 return;
9828 };
9829
9830 let project = self.project.clone();
9831
9832 cx.spawn(|_, mut cx| async move {
9833 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9834
9835 if let Some((_, path)) = result {
9836 workspace
9837 .update(&mut cx, |workspace, cx| {
9838 workspace.open_resolved_path(path, cx)
9839 })?
9840 .await?;
9841 }
9842 anyhow::Ok(())
9843 })
9844 .detach();
9845 }
9846
9847 pub(crate) fn navigate_to_hover_links(
9848 &mut self,
9849 kind: Option<GotoDefinitionKind>,
9850 mut definitions: Vec<HoverLink>,
9851 split: bool,
9852 cx: &mut ViewContext<Editor>,
9853 ) -> Task<Result<Navigated>> {
9854 // If there is one definition, just open it directly
9855 if definitions.len() == 1 {
9856 let definition = definitions.pop().unwrap();
9857
9858 enum TargetTaskResult {
9859 Location(Option<Location>),
9860 AlreadyNavigated,
9861 }
9862
9863 let target_task = match definition {
9864 HoverLink::Text(link) => {
9865 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9866 }
9867 HoverLink::InlayHint(lsp_location, server_id) => {
9868 let computation = self.compute_target_location(lsp_location, server_id, cx);
9869 cx.background_executor().spawn(async move {
9870 let location = computation.await?;
9871 Ok(TargetTaskResult::Location(location))
9872 })
9873 }
9874 HoverLink::Url(url) => {
9875 cx.open_url(&url);
9876 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9877 }
9878 HoverLink::File(path) => {
9879 if let Some(workspace) = self.workspace() {
9880 cx.spawn(|_, mut cx| async move {
9881 workspace
9882 .update(&mut cx, |workspace, cx| {
9883 workspace.open_resolved_path(path, cx)
9884 })?
9885 .await
9886 .map(|_| TargetTaskResult::AlreadyNavigated)
9887 })
9888 } else {
9889 Task::ready(Ok(TargetTaskResult::Location(None)))
9890 }
9891 }
9892 };
9893 cx.spawn(|editor, mut cx| async move {
9894 let target = match target_task.await.context("target resolution task")? {
9895 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9896 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9897 TargetTaskResult::Location(Some(target)) => target,
9898 };
9899
9900 editor.update(&mut cx, |editor, cx| {
9901 let Some(workspace) = editor.workspace() else {
9902 return Navigated::No;
9903 };
9904 let pane = workspace.read(cx).active_pane().clone();
9905
9906 let range = target.range.to_offset(target.buffer.read(cx));
9907 let range = editor.range_for_match(&range);
9908
9909 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9910 let buffer = target.buffer.read(cx);
9911 let range = check_multiline_range(buffer, range);
9912 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9913 s.select_ranges([range]);
9914 });
9915 } else {
9916 cx.window_context().defer(move |cx| {
9917 let target_editor: View<Self> =
9918 workspace.update(cx, |workspace, cx| {
9919 let pane = if split {
9920 workspace.adjacent_pane(cx)
9921 } else {
9922 workspace.active_pane().clone()
9923 };
9924
9925 workspace.open_project_item(
9926 pane,
9927 target.buffer.clone(),
9928 true,
9929 true,
9930 cx,
9931 )
9932 });
9933 target_editor.update(cx, |target_editor, cx| {
9934 // When selecting a definition in a different buffer, disable the nav history
9935 // to avoid creating a history entry at the previous cursor location.
9936 pane.update(cx, |pane, _| pane.disable_history());
9937 let buffer = target.buffer.read(cx);
9938 let range = check_multiline_range(buffer, range);
9939 target_editor.change_selections(
9940 Some(Autoscroll::focused()),
9941 cx,
9942 |s| {
9943 s.select_ranges([range]);
9944 },
9945 );
9946 pane.update(cx, |pane, _| pane.enable_history());
9947 });
9948 });
9949 }
9950 Navigated::Yes
9951 })
9952 })
9953 } else if !definitions.is_empty() {
9954 cx.spawn(|editor, mut cx| async move {
9955 let (title, location_tasks, workspace) = editor
9956 .update(&mut cx, |editor, cx| {
9957 let tab_kind = match kind {
9958 Some(GotoDefinitionKind::Implementation) => "Implementations",
9959 _ => "Definitions",
9960 };
9961 let title = definitions
9962 .iter()
9963 .find_map(|definition| match definition {
9964 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9965 let buffer = origin.buffer.read(cx);
9966 format!(
9967 "{} for {}",
9968 tab_kind,
9969 buffer
9970 .text_for_range(origin.range.clone())
9971 .collect::<String>()
9972 )
9973 }),
9974 HoverLink::InlayHint(_, _) => None,
9975 HoverLink::Url(_) => None,
9976 HoverLink::File(_) => None,
9977 })
9978 .unwrap_or(tab_kind.to_string());
9979 let location_tasks = definitions
9980 .into_iter()
9981 .map(|definition| match definition {
9982 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9983 HoverLink::InlayHint(lsp_location, server_id) => {
9984 editor.compute_target_location(lsp_location, server_id, cx)
9985 }
9986 HoverLink::Url(_) => Task::ready(Ok(None)),
9987 HoverLink::File(_) => Task::ready(Ok(None)),
9988 })
9989 .collect::<Vec<_>>();
9990 (title, location_tasks, editor.workspace().clone())
9991 })
9992 .context("location tasks preparation")?;
9993
9994 let locations = future::join_all(location_tasks)
9995 .await
9996 .into_iter()
9997 .filter_map(|location| location.transpose())
9998 .collect::<Result<_>>()
9999 .context("location tasks")?;
10000
10001 let Some(workspace) = workspace else {
10002 return Ok(Navigated::No);
10003 };
10004 let opened = workspace
10005 .update(&mut cx, |workspace, cx| {
10006 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
10007 })
10008 .ok();
10009
10010 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10011 })
10012 } else {
10013 Task::ready(Ok(Navigated::No))
10014 }
10015 }
10016
10017 fn compute_target_location(
10018 &self,
10019 lsp_location: lsp::Location,
10020 server_id: LanguageServerId,
10021 cx: &mut ViewContext<Self>,
10022 ) -> Task<anyhow::Result<Option<Location>>> {
10023 let Some(project) = self.project.clone() else {
10024 return Task::Ready(Some(Ok(None)));
10025 };
10026
10027 cx.spawn(move |editor, mut cx| async move {
10028 let location_task = editor.update(&mut cx, |_, cx| {
10029 project.update(cx, |project, cx| {
10030 let language_server_name = project
10031 .language_server_statuses(cx)
10032 .find(|(id, _)| server_id == *id)
10033 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10034 language_server_name.map(|language_server_name| {
10035 project.open_local_buffer_via_lsp(
10036 lsp_location.uri.clone(),
10037 server_id,
10038 language_server_name,
10039 cx,
10040 )
10041 })
10042 })
10043 })?;
10044 let location = match location_task {
10045 Some(task) => Some({
10046 let target_buffer_handle = task.await.context("open local buffer")?;
10047 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
10048 let target_start = target_buffer
10049 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
10050 let target_end = target_buffer
10051 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
10052 target_buffer.anchor_after(target_start)
10053 ..target_buffer.anchor_before(target_end)
10054 })?;
10055 Location {
10056 buffer: target_buffer_handle,
10057 range,
10058 }
10059 }),
10060 None => None,
10061 };
10062 Ok(location)
10063 })
10064 }
10065
10066 pub fn find_all_references(
10067 &mut self,
10068 _: &FindAllReferences,
10069 cx: &mut ViewContext<Self>,
10070 ) -> Option<Task<Result<Navigated>>> {
10071 let selection = self.selections.newest::<usize>(cx);
10072 let multi_buffer = self.buffer.read(cx);
10073 let head = selection.head();
10074
10075 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
10076 let head_anchor = multi_buffer_snapshot.anchor_at(
10077 head,
10078 if head < selection.tail() {
10079 Bias::Right
10080 } else {
10081 Bias::Left
10082 },
10083 );
10084
10085 match self
10086 .find_all_references_task_sources
10087 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
10088 {
10089 Ok(_) => {
10090 log::info!(
10091 "Ignoring repeated FindAllReferences invocation with the position of already running task"
10092 );
10093 return None;
10094 }
10095 Err(i) => {
10096 self.find_all_references_task_sources.insert(i, head_anchor);
10097 }
10098 }
10099
10100 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
10101 let workspace = self.workspace()?;
10102 let project = workspace.read(cx).project().clone();
10103 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
10104 Some(cx.spawn(|editor, mut cx| async move {
10105 let _cleanup = defer({
10106 let mut cx = cx.clone();
10107 move || {
10108 let _ = editor.update(&mut cx, |editor, _| {
10109 if let Ok(i) =
10110 editor
10111 .find_all_references_task_sources
10112 .binary_search_by(|anchor| {
10113 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
10114 })
10115 {
10116 editor.find_all_references_task_sources.remove(i);
10117 }
10118 });
10119 }
10120 });
10121
10122 let locations = references.await?;
10123 if locations.is_empty() {
10124 return anyhow::Ok(Navigated::No);
10125 }
10126
10127 workspace.update(&mut cx, |workspace, cx| {
10128 let title = locations
10129 .first()
10130 .as_ref()
10131 .map(|location| {
10132 let buffer = location.buffer.read(cx);
10133 format!(
10134 "References to `{}`",
10135 buffer
10136 .text_for_range(location.range.clone())
10137 .collect::<String>()
10138 )
10139 })
10140 .unwrap();
10141 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10142 Navigated::Yes
10143 })
10144 }))
10145 }
10146
10147 /// Opens a multibuffer with the given project locations in it
10148 pub fn open_locations_in_multibuffer(
10149 workspace: &mut Workspace,
10150 mut locations: Vec<Location>,
10151 title: String,
10152 split: bool,
10153 cx: &mut ViewContext<Workspace>,
10154 ) {
10155 // If there are multiple definitions, open them in a multibuffer
10156 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10157 let mut locations = locations.into_iter().peekable();
10158 let mut ranges_to_highlight = Vec::new();
10159 let capability = workspace.project().read(cx).capability();
10160
10161 let excerpt_buffer = cx.new_model(|cx| {
10162 let mut multibuffer = MultiBuffer::new(capability);
10163 while let Some(location) = locations.next() {
10164 let buffer = location.buffer.read(cx);
10165 let mut ranges_for_buffer = Vec::new();
10166 let range = location.range.to_offset(buffer);
10167 ranges_for_buffer.push(range.clone());
10168
10169 while let Some(next_location) = locations.peek() {
10170 if next_location.buffer == location.buffer {
10171 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10172 locations.next();
10173 } else {
10174 break;
10175 }
10176 }
10177
10178 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10179 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10180 location.buffer.clone(),
10181 ranges_for_buffer,
10182 DEFAULT_MULTIBUFFER_CONTEXT,
10183 cx,
10184 ))
10185 }
10186
10187 multibuffer.with_title(title)
10188 });
10189
10190 let editor = cx.new_view(|cx| {
10191 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10192 });
10193 editor.update(cx, |editor, cx| {
10194 if let Some(first_range) = ranges_to_highlight.first() {
10195 editor.change_selections(None, cx, |selections| {
10196 selections.clear_disjoint();
10197 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10198 });
10199 }
10200 editor.highlight_background::<Self>(
10201 &ranges_to_highlight,
10202 |theme| theme.editor_highlighted_line_background,
10203 cx,
10204 );
10205 });
10206
10207 let item = Box::new(editor);
10208 let item_id = item.item_id();
10209
10210 if split {
10211 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10212 } else {
10213 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10214 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10215 pane.close_current_preview_item(cx)
10216 } else {
10217 None
10218 }
10219 });
10220 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10221 }
10222 workspace.active_pane().update(cx, |pane, cx| {
10223 pane.set_preview_item_id(Some(item_id), cx);
10224 });
10225 }
10226
10227 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10228 use language::ToOffset as _;
10229
10230 let provider = self.semantics_provider.clone()?;
10231 let selection = self.selections.newest_anchor().clone();
10232 let (cursor_buffer, cursor_buffer_position) = self
10233 .buffer
10234 .read(cx)
10235 .text_anchor_for_position(selection.head(), cx)?;
10236 let (tail_buffer, cursor_buffer_position_end) = self
10237 .buffer
10238 .read(cx)
10239 .text_anchor_for_position(selection.tail(), cx)?;
10240 if tail_buffer != cursor_buffer {
10241 return None;
10242 }
10243
10244 let snapshot = cursor_buffer.read(cx).snapshot();
10245 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10246 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10247 let prepare_rename = provider
10248 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10249 .unwrap_or_else(|| Task::ready(Ok(None)));
10250 drop(snapshot);
10251
10252 Some(cx.spawn(|this, mut cx| async move {
10253 let rename_range = if let Some(range) = prepare_rename.await? {
10254 Some(range)
10255 } else {
10256 this.update(&mut cx, |this, cx| {
10257 let buffer = this.buffer.read(cx).snapshot(cx);
10258 let mut buffer_highlights = this
10259 .document_highlights_for_position(selection.head(), &buffer)
10260 .filter(|highlight| {
10261 highlight.start.excerpt_id == selection.head().excerpt_id
10262 && highlight.end.excerpt_id == selection.head().excerpt_id
10263 });
10264 buffer_highlights
10265 .next()
10266 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10267 })?
10268 };
10269 if let Some(rename_range) = rename_range {
10270 this.update(&mut cx, |this, cx| {
10271 let snapshot = cursor_buffer.read(cx).snapshot();
10272 let rename_buffer_range = rename_range.to_offset(&snapshot);
10273 let cursor_offset_in_rename_range =
10274 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10275 let cursor_offset_in_rename_range_end =
10276 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10277
10278 this.take_rename(false, cx);
10279 let buffer = this.buffer.read(cx).read(cx);
10280 let cursor_offset = selection.head().to_offset(&buffer);
10281 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10282 let rename_end = rename_start + rename_buffer_range.len();
10283 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10284 let mut old_highlight_id = None;
10285 let old_name: Arc<str> = buffer
10286 .chunks(rename_start..rename_end, true)
10287 .map(|chunk| {
10288 if old_highlight_id.is_none() {
10289 old_highlight_id = chunk.syntax_highlight_id;
10290 }
10291 chunk.text
10292 })
10293 .collect::<String>()
10294 .into();
10295
10296 drop(buffer);
10297
10298 // Position the selection in the rename editor so that it matches the current selection.
10299 this.show_local_selections = false;
10300 let rename_editor = cx.new_view(|cx| {
10301 let mut editor = Editor::single_line(cx);
10302 editor.buffer.update(cx, |buffer, cx| {
10303 buffer.edit([(0..0, old_name.clone())], None, cx)
10304 });
10305 let rename_selection_range = match cursor_offset_in_rename_range
10306 .cmp(&cursor_offset_in_rename_range_end)
10307 {
10308 Ordering::Equal => {
10309 editor.select_all(&SelectAll, cx);
10310 return editor;
10311 }
10312 Ordering::Less => {
10313 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10314 }
10315 Ordering::Greater => {
10316 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10317 }
10318 };
10319 if rename_selection_range.end > old_name.len() {
10320 editor.select_all(&SelectAll, cx);
10321 } else {
10322 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10323 s.select_ranges([rename_selection_range]);
10324 });
10325 }
10326 editor
10327 });
10328 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10329 if e == &EditorEvent::Focused {
10330 cx.emit(EditorEvent::FocusedIn)
10331 }
10332 })
10333 .detach();
10334
10335 let write_highlights =
10336 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10337 let read_highlights =
10338 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10339 let ranges = write_highlights
10340 .iter()
10341 .flat_map(|(_, ranges)| ranges.iter())
10342 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10343 .cloned()
10344 .collect();
10345
10346 this.highlight_text::<Rename>(
10347 ranges,
10348 HighlightStyle {
10349 fade_out: Some(0.6),
10350 ..Default::default()
10351 },
10352 cx,
10353 );
10354 let rename_focus_handle = rename_editor.focus_handle(cx);
10355 cx.focus(&rename_focus_handle);
10356 let block_id = this.insert_blocks(
10357 [BlockProperties {
10358 style: BlockStyle::Flex,
10359 placement: BlockPlacement::Below(range.start),
10360 height: 1,
10361 render: Box::new({
10362 let rename_editor = rename_editor.clone();
10363 move |cx: &mut BlockContext| {
10364 let mut text_style = cx.editor_style.text.clone();
10365 if let Some(highlight_style) = old_highlight_id
10366 .and_then(|h| h.style(&cx.editor_style.syntax))
10367 {
10368 text_style = text_style.highlight(highlight_style);
10369 }
10370 div()
10371 .pl(cx.anchor_x)
10372 .child(EditorElement::new(
10373 &rename_editor,
10374 EditorStyle {
10375 background: cx.theme().system().transparent,
10376 local_player: cx.editor_style.local_player,
10377 text: text_style,
10378 scrollbar_width: cx.editor_style.scrollbar_width,
10379 syntax: cx.editor_style.syntax.clone(),
10380 status: cx.editor_style.status.clone(),
10381 inlay_hints_style: HighlightStyle {
10382 font_weight: Some(FontWeight::BOLD),
10383 ..make_inlay_hints_style(cx)
10384 },
10385 suggestions_style: HighlightStyle {
10386 color: Some(cx.theme().status().predictive),
10387 ..HighlightStyle::default()
10388 },
10389 ..EditorStyle::default()
10390 },
10391 ))
10392 .into_any_element()
10393 }
10394 }),
10395 priority: 0,
10396 }],
10397 Some(Autoscroll::fit()),
10398 cx,
10399 )[0];
10400 this.pending_rename = Some(RenameState {
10401 range,
10402 old_name,
10403 editor: rename_editor,
10404 block_id,
10405 });
10406 })?;
10407 }
10408
10409 Ok(())
10410 }))
10411 }
10412
10413 pub fn confirm_rename(
10414 &mut self,
10415 _: &ConfirmRename,
10416 cx: &mut ViewContext<Self>,
10417 ) -> Option<Task<Result<()>>> {
10418 let rename = self.take_rename(false, cx)?;
10419 let workspace = self.workspace()?.downgrade();
10420 let (buffer, start) = self
10421 .buffer
10422 .read(cx)
10423 .text_anchor_for_position(rename.range.start, cx)?;
10424 let (end_buffer, _) = self
10425 .buffer
10426 .read(cx)
10427 .text_anchor_for_position(rename.range.end, cx)?;
10428 if buffer != end_buffer {
10429 return None;
10430 }
10431
10432 let old_name = rename.old_name;
10433 let new_name = rename.editor.read(cx).text(cx);
10434
10435 let rename = self.semantics_provider.as_ref()?.perform_rename(
10436 &buffer,
10437 start,
10438 new_name.clone(),
10439 cx,
10440 )?;
10441
10442 Some(cx.spawn(|editor, mut cx| async move {
10443 let project_transaction = rename.await?;
10444 Self::open_project_transaction(
10445 &editor,
10446 workspace,
10447 project_transaction,
10448 format!("Rename: {} → {}", old_name, new_name),
10449 cx.clone(),
10450 )
10451 .await?;
10452
10453 editor.update(&mut cx, |editor, cx| {
10454 editor.refresh_document_highlights(cx);
10455 })?;
10456 Ok(())
10457 }))
10458 }
10459
10460 fn take_rename(
10461 &mut self,
10462 moving_cursor: bool,
10463 cx: &mut ViewContext<Self>,
10464 ) -> Option<RenameState> {
10465 let rename = self.pending_rename.take()?;
10466 if rename.editor.focus_handle(cx).is_focused(cx) {
10467 cx.focus(&self.focus_handle);
10468 }
10469
10470 self.remove_blocks(
10471 [rename.block_id].into_iter().collect(),
10472 Some(Autoscroll::fit()),
10473 cx,
10474 );
10475 self.clear_highlights::<Rename>(cx);
10476 self.show_local_selections = true;
10477
10478 if moving_cursor {
10479 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10480 editor.selections.newest::<usize>(cx).head()
10481 });
10482
10483 // Update the selection to match the position of the selection inside
10484 // the rename editor.
10485 let snapshot = self.buffer.read(cx).read(cx);
10486 let rename_range = rename.range.to_offset(&snapshot);
10487 let cursor_in_editor = snapshot
10488 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10489 .min(rename_range.end);
10490 drop(snapshot);
10491
10492 self.change_selections(None, cx, |s| {
10493 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10494 });
10495 } else {
10496 self.refresh_document_highlights(cx);
10497 }
10498
10499 Some(rename)
10500 }
10501
10502 pub fn pending_rename(&self) -> Option<&RenameState> {
10503 self.pending_rename.as_ref()
10504 }
10505
10506 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10507 let project = match &self.project {
10508 Some(project) => project.clone(),
10509 None => return None,
10510 };
10511
10512 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10513 }
10514
10515 fn format_selections(
10516 &mut self,
10517 _: &FormatSelections,
10518 cx: &mut ViewContext<Self>,
10519 ) -> Option<Task<Result<()>>> {
10520 let project = match &self.project {
10521 Some(project) => project.clone(),
10522 None => return None,
10523 };
10524
10525 let selections = self
10526 .selections
10527 .all_adjusted(cx)
10528 .into_iter()
10529 .filter(|s| !s.is_empty())
10530 .collect_vec();
10531
10532 Some(self.perform_format(
10533 project,
10534 FormatTrigger::Manual,
10535 FormatTarget::Ranges(selections),
10536 cx,
10537 ))
10538 }
10539
10540 fn perform_format(
10541 &mut self,
10542 project: Model<Project>,
10543 trigger: FormatTrigger,
10544 target: FormatTarget,
10545 cx: &mut ViewContext<Self>,
10546 ) -> Task<Result<()>> {
10547 let buffer = self.buffer().clone();
10548 let mut buffers = buffer.read(cx).all_buffers();
10549 if trigger == FormatTrigger::Save {
10550 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10551 }
10552
10553 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10554 let format = project.update(cx, |project, cx| {
10555 project.format(buffers, true, trigger, target, cx)
10556 });
10557
10558 cx.spawn(|_, mut cx| async move {
10559 let transaction = futures::select_biased! {
10560 () = timeout => {
10561 log::warn!("timed out waiting for formatting");
10562 None
10563 }
10564 transaction = format.log_err().fuse() => transaction,
10565 };
10566
10567 buffer
10568 .update(&mut cx, |buffer, cx| {
10569 if let Some(transaction) = transaction {
10570 if !buffer.is_singleton() {
10571 buffer.push_transaction(&transaction.0, cx);
10572 }
10573 }
10574
10575 cx.notify();
10576 })
10577 .ok();
10578
10579 Ok(())
10580 })
10581 }
10582
10583 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10584 if let Some(project) = self.project.clone() {
10585 self.buffer.update(cx, |multi_buffer, cx| {
10586 project.update(cx, |project, cx| {
10587 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10588 });
10589 })
10590 }
10591 }
10592
10593 fn cancel_language_server_work(
10594 &mut self,
10595 _: &actions::CancelLanguageServerWork,
10596 cx: &mut ViewContext<Self>,
10597 ) {
10598 if let Some(project) = self.project.clone() {
10599 self.buffer.update(cx, |multi_buffer, cx| {
10600 project.update(cx, |project, cx| {
10601 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10602 });
10603 })
10604 }
10605 }
10606
10607 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10608 cx.show_character_palette();
10609 }
10610
10611 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10612 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10613 let buffer = self.buffer.read(cx).snapshot(cx);
10614 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10615 let is_valid = buffer
10616 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10617 .any(|entry| {
10618 entry.diagnostic.is_primary
10619 && !entry.range.is_empty()
10620 && entry.range.start == primary_range_start
10621 && entry.diagnostic.message == active_diagnostics.primary_message
10622 });
10623
10624 if is_valid != active_diagnostics.is_valid {
10625 active_diagnostics.is_valid = is_valid;
10626 let mut new_styles = HashMap::default();
10627 for (block_id, diagnostic) in &active_diagnostics.blocks {
10628 new_styles.insert(
10629 *block_id,
10630 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10631 );
10632 }
10633 self.display_map.update(cx, |display_map, _cx| {
10634 display_map.replace_blocks(new_styles)
10635 });
10636 }
10637 }
10638 }
10639
10640 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10641 self.dismiss_diagnostics(cx);
10642 let snapshot = self.snapshot(cx);
10643 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10644 let buffer = self.buffer.read(cx).snapshot(cx);
10645
10646 let mut primary_range = None;
10647 let mut primary_message = None;
10648 let mut group_end = Point::zero();
10649 let diagnostic_group = buffer
10650 .diagnostic_group::<MultiBufferPoint>(group_id)
10651 .filter_map(|entry| {
10652 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10653 && (entry.range.start.row == entry.range.end.row
10654 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10655 {
10656 return None;
10657 }
10658 if entry.range.end > group_end {
10659 group_end = entry.range.end;
10660 }
10661 if entry.diagnostic.is_primary {
10662 primary_range = Some(entry.range.clone());
10663 primary_message = Some(entry.diagnostic.message.clone());
10664 }
10665 Some(entry)
10666 })
10667 .collect::<Vec<_>>();
10668 let primary_range = primary_range?;
10669 let primary_message = primary_message?;
10670 let primary_range =
10671 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10672
10673 let blocks = display_map
10674 .insert_blocks(
10675 diagnostic_group.iter().map(|entry| {
10676 let diagnostic = entry.diagnostic.clone();
10677 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10678 BlockProperties {
10679 style: BlockStyle::Fixed,
10680 placement: BlockPlacement::Below(
10681 buffer.anchor_after(entry.range.start),
10682 ),
10683 height: message_height,
10684 render: diagnostic_block_renderer(diagnostic, None, true, true),
10685 priority: 0,
10686 }
10687 }),
10688 cx,
10689 )
10690 .into_iter()
10691 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10692 .collect();
10693
10694 Some(ActiveDiagnosticGroup {
10695 primary_range,
10696 primary_message,
10697 group_id,
10698 blocks,
10699 is_valid: true,
10700 })
10701 });
10702 self.active_diagnostics.is_some()
10703 }
10704
10705 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10706 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10707 self.display_map.update(cx, |display_map, cx| {
10708 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10709 });
10710 cx.notify();
10711 }
10712 }
10713
10714 pub fn set_selections_from_remote(
10715 &mut self,
10716 selections: Vec<Selection<Anchor>>,
10717 pending_selection: Option<Selection<Anchor>>,
10718 cx: &mut ViewContext<Self>,
10719 ) {
10720 let old_cursor_position = self.selections.newest_anchor().head();
10721 self.selections.change_with(cx, |s| {
10722 s.select_anchors(selections);
10723 if let Some(pending_selection) = pending_selection {
10724 s.set_pending(pending_selection, SelectMode::Character);
10725 } else {
10726 s.clear_pending();
10727 }
10728 });
10729 self.selections_did_change(false, &old_cursor_position, true, cx);
10730 }
10731
10732 fn push_to_selection_history(&mut self) {
10733 self.selection_history.push(SelectionHistoryEntry {
10734 selections: self.selections.disjoint_anchors(),
10735 select_next_state: self.select_next_state.clone(),
10736 select_prev_state: self.select_prev_state.clone(),
10737 add_selections_state: self.add_selections_state.clone(),
10738 });
10739 }
10740
10741 pub fn transact(
10742 &mut self,
10743 cx: &mut ViewContext<Self>,
10744 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10745 ) -> Option<TransactionId> {
10746 self.start_transaction_at(Instant::now(), cx);
10747 update(self, cx);
10748 self.end_transaction_at(Instant::now(), cx)
10749 }
10750
10751 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10752 self.end_selection(cx);
10753 if let Some(tx_id) = self
10754 .buffer
10755 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10756 {
10757 self.selection_history
10758 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10759 cx.emit(EditorEvent::TransactionBegun {
10760 transaction_id: tx_id,
10761 })
10762 }
10763 }
10764
10765 fn end_transaction_at(
10766 &mut self,
10767 now: Instant,
10768 cx: &mut ViewContext<Self>,
10769 ) -> Option<TransactionId> {
10770 if let Some(transaction_id) = self
10771 .buffer
10772 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10773 {
10774 if let Some((_, end_selections)) =
10775 self.selection_history.transaction_mut(transaction_id)
10776 {
10777 *end_selections = Some(self.selections.disjoint_anchors());
10778 } else {
10779 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10780 }
10781
10782 cx.emit(EditorEvent::Edited { transaction_id });
10783 Some(transaction_id)
10784 } else {
10785 None
10786 }
10787 }
10788
10789 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10790 let selection = self.selections.newest::<Point>(cx);
10791
10792 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10793 let range = if selection.is_empty() {
10794 let point = selection.head().to_display_point(&display_map);
10795 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10796 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10797 .to_point(&display_map);
10798 start..end
10799 } else {
10800 selection.range()
10801 };
10802 if display_map.folds_in_range(range).next().is_some() {
10803 self.unfold_lines(&Default::default(), cx)
10804 } else {
10805 self.fold(&Default::default(), cx)
10806 }
10807 }
10808
10809 pub fn toggle_fold_recursive(
10810 &mut self,
10811 _: &actions::ToggleFoldRecursive,
10812 cx: &mut ViewContext<Self>,
10813 ) {
10814 let selection = self.selections.newest::<Point>(cx);
10815
10816 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10817 let range = if selection.is_empty() {
10818 let point = selection.head().to_display_point(&display_map);
10819 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10820 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10821 .to_point(&display_map);
10822 start..end
10823 } else {
10824 selection.range()
10825 };
10826 if display_map.folds_in_range(range).next().is_some() {
10827 self.unfold_recursive(&Default::default(), cx)
10828 } else {
10829 self.fold_recursive(&Default::default(), cx)
10830 }
10831 }
10832
10833 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10834 let mut fold_ranges = Vec::new();
10835 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10836 let selections = self.selections.all_adjusted(cx);
10837
10838 for selection in selections {
10839 let range = selection.range().sorted();
10840 let buffer_start_row = range.start.row;
10841
10842 if range.start.row != range.end.row {
10843 let mut found = false;
10844 let mut row = range.start.row;
10845 while row <= range.end.row {
10846 if let Some((foldable_range, fold_text)) =
10847 { display_map.foldable_range(MultiBufferRow(row)) }
10848 {
10849 found = true;
10850 row = foldable_range.end.row + 1;
10851 fold_ranges.push((foldable_range, fold_text));
10852 } else {
10853 row += 1
10854 }
10855 }
10856 if found {
10857 continue;
10858 }
10859 }
10860
10861 for row in (0..=range.start.row).rev() {
10862 if let Some((foldable_range, fold_text)) =
10863 display_map.foldable_range(MultiBufferRow(row))
10864 {
10865 if foldable_range.end.row >= buffer_start_row {
10866 fold_ranges.push((foldable_range, fold_text));
10867 if row <= range.start.row {
10868 break;
10869 }
10870 }
10871 }
10872 }
10873 }
10874
10875 self.fold_ranges(fold_ranges, true, cx);
10876 }
10877
10878 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10879 let fold_at_level = fold_at.level;
10880 let snapshot = self.buffer.read(cx).snapshot(cx);
10881 let mut fold_ranges = Vec::new();
10882 let mut stack = vec![(0, snapshot.max_buffer_row().0, 1)];
10883
10884 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10885 while start_row < end_row {
10886 match self.snapshot(cx).foldable_range(MultiBufferRow(start_row)) {
10887 Some(foldable_range) => {
10888 let nested_start_row = foldable_range.0.start.row + 1;
10889 let nested_end_row = foldable_range.0.end.row;
10890
10891 if current_level < fold_at_level {
10892 stack.push((nested_start_row, nested_end_row, current_level + 1));
10893 } else if current_level == fold_at_level {
10894 fold_ranges.push(foldable_range);
10895 }
10896
10897 start_row = nested_end_row + 1;
10898 }
10899 None => start_row += 1,
10900 }
10901 }
10902 }
10903
10904 self.fold_ranges(fold_ranges, true, cx);
10905 }
10906
10907 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10908 let mut fold_ranges = Vec::new();
10909 let snapshot = self.buffer.read(cx).snapshot(cx);
10910
10911 for row in 0..snapshot.max_buffer_row().0 {
10912 if let Some(foldable_range) = self.snapshot(cx).foldable_range(MultiBufferRow(row)) {
10913 fold_ranges.push(foldable_range);
10914 }
10915 }
10916
10917 self.fold_ranges(fold_ranges, true, cx);
10918 }
10919
10920 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10921 let mut fold_ranges = Vec::new();
10922 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10923 let selections = self.selections.all_adjusted(cx);
10924
10925 for selection in selections {
10926 let range = selection.range().sorted();
10927 let buffer_start_row = range.start.row;
10928
10929 if range.start.row != range.end.row {
10930 let mut found = false;
10931 for row in range.start.row..=range.end.row {
10932 if let Some((foldable_range, fold_text)) =
10933 { display_map.foldable_range(MultiBufferRow(row)) }
10934 {
10935 found = true;
10936 fold_ranges.push((foldable_range, fold_text));
10937 }
10938 }
10939 if found {
10940 continue;
10941 }
10942 }
10943
10944 for row in (0..=range.start.row).rev() {
10945 if let Some((foldable_range, fold_text)) =
10946 display_map.foldable_range(MultiBufferRow(row))
10947 {
10948 if foldable_range.end.row >= buffer_start_row {
10949 fold_ranges.push((foldable_range, fold_text));
10950 } else {
10951 break;
10952 }
10953 }
10954 }
10955 }
10956
10957 self.fold_ranges(fold_ranges, true, cx);
10958 }
10959
10960 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10961 let buffer_row = fold_at.buffer_row;
10962 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10963
10964 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10965 let autoscroll = self
10966 .selections
10967 .all::<Point>(cx)
10968 .iter()
10969 .any(|selection| fold_range.overlaps(&selection.range()));
10970
10971 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10972 }
10973 }
10974
10975 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10976 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10977 let buffer = &display_map.buffer_snapshot;
10978 let selections = self.selections.all::<Point>(cx);
10979 let ranges = selections
10980 .iter()
10981 .map(|s| {
10982 let range = s.display_range(&display_map).sorted();
10983 let mut start = range.start.to_point(&display_map);
10984 let mut end = range.end.to_point(&display_map);
10985 start.column = 0;
10986 end.column = buffer.line_len(MultiBufferRow(end.row));
10987 start..end
10988 })
10989 .collect::<Vec<_>>();
10990
10991 self.unfold_ranges(ranges, true, true, cx);
10992 }
10993
10994 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10995 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10996 let selections = self.selections.all::<Point>(cx);
10997 let ranges = selections
10998 .iter()
10999 .map(|s| {
11000 let mut range = s.display_range(&display_map).sorted();
11001 *range.start.column_mut() = 0;
11002 *range.end.column_mut() = display_map.line_len(range.end.row());
11003 let start = range.start.to_point(&display_map);
11004 let end = range.end.to_point(&display_map);
11005 start..end
11006 })
11007 .collect::<Vec<_>>();
11008
11009 self.unfold_ranges(ranges, true, true, cx);
11010 }
11011
11012 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
11013 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11014
11015 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
11016 ..Point::new(
11017 unfold_at.buffer_row.0,
11018 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
11019 );
11020
11021 let autoscroll = self
11022 .selections
11023 .all::<Point>(cx)
11024 .iter()
11025 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
11026
11027 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
11028 }
11029
11030 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11031 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11032 self.unfold_ranges(
11033 [Point::zero()..display_map.max_point().to_point(&display_map)],
11034 true,
11035 true,
11036 cx,
11037 );
11038 }
11039
11040 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11041 let selections = self.selections.all::<Point>(cx);
11042 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11043 let line_mode = self.selections.line_mode;
11044 let ranges = selections.into_iter().map(|s| {
11045 if line_mode {
11046 let start = Point::new(s.start.row, 0);
11047 let end = Point::new(
11048 s.end.row,
11049 display_map
11050 .buffer_snapshot
11051 .line_len(MultiBufferRow(s.end.row)),
11052 );
11053 (start..end, display_map.fold_placeholder.clone())
11054 } else {
11055 (s.start..s.end, display_map.fold_placeholder.clone())
11056 }
11057 });
11058 self.fold_ranges(ranges, true, cx);
11059 }
11060
11061 pub fn fold_ranges<T: ToOffset + Clone>(
11062 &mut self,
11063 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
11064 auto_scroll: bool,
11065 cx: &mut ViewContext<Self>,
11066 ) {
11067 let mut fold_ranges = Vec::new();
11068 let mut buffers_affected = HashMap::default();
11069 let multi_buffer = self.buffer().read(cx);
11070 for (fold_range, fold_text) in ranges {
11071 if let Some((_, buffer, _)) =
11072 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
11073 {
11074 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11075 };
11076 fold_ranges.push((fold_range, fold_text));
11077 }
11078
11079 let mut ranges = fold_ranges.into_iter().peekable();
11080 if ranges.peek().is_some() {
11081 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
11082
11083 if auto_scroll {
11084 self.request_autoscroll(Autoscroll::fit(), cx);
11085 }
11086
11087 for buffer in buffers_affected.into_values() {
11088 self.sync_expanded_diff_hunks(buffer, cx);
11089 }
11090
11091 cx.notify();
11092
11093 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11094 // Clear diagnostics block when folding a range that contains it.
11095 let snapshot = self.snapshot(cx);
11096 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11097 drop(snapshot);
11098 self.active_diagnostics = Some(active_diagnostics);
11099 self.dismiss_diagnostics(cx);
11100 } else {
11101 self.active_diagnostics = Some(active_diagnostics);
11102 }
11103 }
11104
11105 self.scrollbar_marker_state.dirty = true;
11106 }
11107 }
11108
11109 pub fn unfold_ranges<T: ToOffset + Clone>(
11110 &mut self,
11111 ranges: impl IntoIterator<Item = Range<T>>,
11112 inclusive: bool,
11113 auto_scroll: bool,
11114 cx: &mut ViewContext<Self>,
11115 ) {
11116 let mut unfold_ranges = Vec::new();
11117 let mut buffers_affected = HashMap::default();
11118 let multi_buffer = self.buffer().read(cx);
11119 for range in ranges {
11120 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11121 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11122 };
11123 unfold_ranges.push(range);
11124 }
11125
11126 let mut ranges = unfold_ranges.into_iter().peekable();
11127 if ranges.peek().is_some() {
11128 self.display_map
11129 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
11130 if auto_scroll {
11131 self.request_autoscroll(Autoscroll::fit(), cx);
11132 }
11133
11134 for buffer in buffers_affected.into_values() {
11135 self.sync_expanded_diff_hunks(buffer, cx);
11136 }
11137
11138 cx.notify();
11139 self.scrollbar_marker_state.dirty = true;
11140 self.active_indent_guides_state.dirty = true;
11141 }
11142 }
11143
11144 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11145 self.display_map.read(cx).fold_placeholder.clone()
11146 }
11147
11148 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11149 if hovered != self.gutter_hovered {
11150 self.gutter_hovered = hovered;
11151 cx.notify();
11152 }
11153 }
11154
11155 pub fn insert_blocks(
11156 &mut self,
11157 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11158 autoscroll: Option<Autoscroll>,
11159 cx: &mut ViewContext<Self>,
11160 ) -> Vec<CustomBlockId> {
11161 let blocks = self
11162 .display_map
11163 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11164 if let Some(autoscroll) = autoscroll {
11165 self.request_autoscroll(autoscroll, cx);
11166 }
11167 cx.notify();
11168 blocks
11169 }
11170
11171 pub fn resize_blocks(
11172 &mut self,
11173 heights: HashMap<CustomBlockId, u32>,
11174 autoscroll: Option<Autoscroll>,
11175 cx: &mut ViewContext<Self>,
11176 ) {
11177 self.display_map
11178 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11179 if let Some(autoscroll) = autoscroll {
11180 self.request_autoscroll(autoscroll, cx);
11181 }
11182 cx.notify();
11183 }
11184
11185 pub fn replace_blocks(
11186 &mut self,
11187 renderers: HashMap<CustomBlockId, RenderBlock>,
11188 autoscroll: Option<Autoscroll>,
11189 cx: &mut ViewContext<Self>,
11190 ) {
11191 self.display_map
11192 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11193 if let Some(autoscroll) = autoscroll {
11194 self.request_autoscroll(autoscroll, cx);
11195 }
11196 cx.notify();
11197 }
11198
11199 pub fn remove_blocks(
11200 &mut self,
11201 block_ids: HashSet<CustomBlockId>,
11202 autoscroll: Option<Autoscroll>,
11203 cx: &mut ViewContext<Self>,
11204 ) {
11205 self.display_map.update(cx, |display_map, cx| {
11206 display_map.remove_blocks(block_ids, cx)
11207 });
11208 if let Some(autoscroll) = autoscroll {
11209 self.request_autoscroll(autoscroll, cx);
11210 }
11211 cx.notify();
11212 }
11213
11214 pub fn row_for_block(
11215 &self,
11216 block_id: CustomBlockId,
11217 cx: &mut ViewContext<Self>,
11218 ) -> Option<DisplayRow> {
11219 self.display_map
11220 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11221 }
11222
11223 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11224 self.focused_block = Some(focused_block);
11225 }
11226
11227 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11228 self.focused_block.take()
11229 }
11230
11231 pub fn insert_creases(
11232 &mut self,
11233 creases: impl IntoIterator<Item = Crease>,
11234 cx: &mut ViewContext<Self>,
11235 ) -> Vec<CreaseId> {
11236 self.display_map
11237 .update(cx, |map, cx| map.insert_creases(creases, cx))
11238 }
11239
11240 pub fn remove_creases(
11241 &mut self,
11242 ids: impl IntoIterator<Item = CreaseId>,
11243 cx: &mut ViewContext<Self>,
11244 ) {
11245 self.display_map
11246 .update(cx, |map, cx| map.remove_creases(ids, cx));
11247 }
11248
11249 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11250 self.display_map
11251 .update(cx, |map, cx| map.snapshot(cx))
11252 .longest_row()
11253 }
11254
11255 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11256 self.display_map
11257 .update(cx, |map, cx| map.snapshot(cx))
11258 .max_point()
11259 }
11260
11261 pub fn text(&self, cx: &AppContext) -> String {
11262 self.buffer.read(cx).read(cx).text()
11263 }
11264
11265 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11266 let text = self.text(cx);
11267 let text = text.trim();
11268
11269 if text.is_empty() {
11270 return None;
11271 }
11272
11273 Some(text.to_string())
11274 }
11275
11276 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11277 self.transact(cx, |this, cx| {
11278 this.buffer
11279 .read(cx)
11280 .as_singleton()
11281 .expect("you can only call set_text on editors for singleton buffers")
11282 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11283 });
11284 }
11285
11286 pub fn display_text(&self, cx: &mut AppContext) -> String {
11287 self.display_map
11288 .update(cx, |map, cx| map.snapshot(cx))
11289 .text()
11290 }
11291
11292 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11293 let mut wrap_guides = smallvec::smallvec![];
11294
11295 if self.show_wrap_guides == Some(false) {
11296 return wrap_guides;
11297 }
11298
11299 let settings = self.buffer.read(cx).settings_at(0, cx);
11300 if settings.show_wrap_guides {
11301 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11302 wrap_guides.push((soft_wrap as usize, true));
11303 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11304 wrap_guides.push((soft_wrap as usize, true));
11305 }
11306 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11307 }
11308
11309 wrap_guides
11310 }
11311
11312 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11313 let settings = self.buffer.read(cx).settings_at(0, cx);
11314 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11315 match mode {
11316 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11317 SoftWrap::None
11318 }
11319 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11320 language_settings::SoftWrap::PreferredLineLength => {
11321 SoftWrap::Column(settings.preferred_line_length)
11322 }
11323 language_settings::SoftWrap::Bounded => {
11324 SoftWrap::Bounded(settings.preferred_line_length)
11325 }
11326 }
11327 }
11328
11329 pub fn set_soft_wrap_mode(
11330 &mut self,
11331 mode: language_settings::SoftWrap,
11332 cx: &mut ViewContext<Self>,
11333 ) {
11334 self.soft_wrap_mode_override = Some(mode);
11335 cx.notify();
11336 }
11337
11338 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11339 self.text_style_refinement = Some(style);
11340 }
11341
11342 /// called by the Element so we know what style we were most recently rendered with.
11343 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11344 let rem_size = cx.rem_size();
11345 self.display_map.update(cx, |map, cx| {
11346 map.set_font(
11347 style.text.font(),
11348 style.text.font_size.to_pixels(rem_size),
11349 cx,
11350 )
11351 });
11352 self.style = Some(style);
11353 }
11354
11355 pub fn style(&self) -> Option<&EditorStyle> {
11356 self.style.as_ref()
11357 }
11358
11359 // Called by the element. This method is not designed to be called outside of the editor
11360 // element's layout code because it does not notify when rewrapping is computed synchronously.
11361 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11362 self.display_map
11363 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11364 }
11365
11366 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11367 if self.soft_wrap_mode_override.is_some() {
11368 self.soft_wrap_mode_override.take();
11369 } else {
11370 let soft_wrap = match self.soft_wrap_mode(cx) {
11371 SoftWrap::GitDiff => return,
11372 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11373 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11374 language_settings::SoftWrap::None
11375 }
11376 };
11377 self.soft_wrap_mode_override = Some(soft_wrap);
11378 }
11379 cx.notify();
11380 }
11381
11382 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11383 let Some(workspace) = self.workspace() else {
11384 return;
11385 };
11386 let fs = workspace.read(cx).app_state().fs.clone();
11387 let current_show = TabBarSettings::get_global(cx).show;
11388 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11389 setting.show = Some(!current_show);
11390 });
11391 }
11392
11393 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11394 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11395 self.buffer
11396 .read(cx)
11397 .settings_at(0, cx)
11398 .indent_guides
11399 .enabled
11400 });
11401 self.show_indent_guides = Some(!currently_enabled);
11402 cx.notify();
11403 }
11404
11405 fn should_show_indent_guides(&self) -> Option<bool> {
11406 self.show_indent_guides
11407 }
11408
11409 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11410 let mut editor_settings = EditorSettings::get_global(cx).clone();
11411 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11412 EditorSettings::override_global(editor_settings, cx);
11413 }
11414
11415 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11416 self.use_relative_line_numbers
11417 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11418 }
11419
11420 pub fn toggle_relative_line_numbers(
11421 &mut self,
11422 _: &ToggleRelativeLineNumbers,
11423 cx: &mut ViewContext<Self>,
11424 ) {
11425 let is_relative = self.should_use_relative_line_numbers(cx);
11426 self.set_relative_line_number(Some(!is_relative), cx)
11427 }
11428
11429 pub fn set_relative_line_number(
11430 &mut self,
11431 is_relative: Option<bool>,
11432 cx: &mut ViewContext<Self>,
11433 ) {
11434 self.use_relative_line_numbers = is_relative;
11435 cx.notify();
11436 }
11437
11438 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11439 self.show_gutter = show_gutter;
11440 cx.notify();
11441 }
11442
11443 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11444 self.show_line_numbers = Some(show_line_numbers);
11445 cx.notify();
11446 }
11447
11448 pub fn set_show_git_diff_gutter(
11449 &mut self,
11450 show_git_diff_gutter: bool,
11451 cx: &mut ViewContext<Self>,
11452 ) {
11453 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11454 cx.notify();
11455 }
11456
11457 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11458 self.show_code_actions = Some(show_code_actions);
11459 cx.notify();
11460 }
11461
11462 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11463 self.show_runnables = Some(show_runnables);
11464 cx.notify();
11465 }
11466
11467 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11468 if self.display_map.read(cx).masked != masked {
11469 self.display_map.update(cx, |map, _| map.masked = masked);
11470 }
11471 cx.notify()
11472 }
11473
11474 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11475 self.show_wrap_guides = Some(show_wrap_guides);
11476 cx.notify();
11477 }
11478
11479 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11480 self.show_indent_guides = Some(show_indent_guides);
11481 cx.notify();
11482 }
11483
11484 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11485 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11486 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11487 if let Some(dir) = file.abs_path(cx).parent() {
11488 return Some(dir.to_owned());
11489 }
11490 }
11491
11492 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11493 return Some(project_path.path.to_path_buf());
11494 }
11495 }
11496
11497 None
11498 }
11499
11500 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11501 self.active_excerpt(cx)?
11502 .1
11503 .read(cx)
11504 .file()
11505 .and_then(|f| f.as_local())
11506 }
11507
11508 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11509 if let Some(target) = self.target_file(cx) {
11510 cx.reveal_path(&target.abs_path(cx));
11511 }
11512 }
11513
11514 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11515 if let Some(file) = self.target_file(cx) {
11516 if let Some(path) = file.abs_path(cx).to_str() {
11517 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11518 }
11519 }
11520 }
11521
11522 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11523 if let Some(file) = self.target_file(cx) {
11524 if let Some(path) = file.path().to_str() {
11525 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11526 }
11527 }
11528 }
11529
11530 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11531 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11532
11533 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11534 self.start_git_blame(true, cx);
11535 }
11536
11537 cx.notify();
11538 }
11539
11540 pub fn toggle_git_blame_inline(
11541 &mut self,
11542 _: &ToggleGitBlameInline,
11543 cx: &mut ViewContext<Self>,
11544 ) {
11545 self.toggle_git_blame_inline_internal(true, cx);
11546 cx.notify();
11547 }
11548
11549 pub fn git_blame_inline_enabled(&self) -> bool {
11550 self.git_blame_inline_enabled
11551 }
11552
11553 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11554 self.show_selection_menu = self
11555 .show_selection_menu
11556 .map(|show_selections_menu| !show_selections_menu)
11557 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11558
11559 cx.notify();
11560 }
11561
11562 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11563 self.show_selection_menu
11564 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11565 }
11566
11567 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11568 if let Some(project) = self.project.as_ref() {
11569 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11570 return;
11571 };
11572
11573 if buffer.read(cx).file().is_none() {
11574 return;
11575 }
11576
11577 let focused = self.focus_handle(cx).contains_focused(cx);
11578
11579 let project = project.clone();
11580 let blame =
11581 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11582 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11583 self.blame = Some(blame);
11584 }
11585 }
11586
11587 fn toggle_git_blame_inline_internal(
11588 &mut self,
11589 user_triggered: bool,
11590 cx: &mut ViewContext<Self>,
11591 ) {
11592 if self.git_blame_inline_enabled {
11593 self.git_blame_inline_enabled = false;
11594 self.show_git_blame_inline = false;
11595 self.show_git_blame_inline_delay_task.take();
11596 } else {
11597 self.git_blame_inline_enabled = true;
11598 self.start_git_blame_inline(user_triggered, cx);
11599 }
11600
11601 cx.notify();
11602 }
11603
11604 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11605 self.start_git_blame(user_triggered, cx);
11606
11607 if ProjectSettings::get_global(cx)
11608 .git
11609 .inline_blame_delay()
11610 .is_some()
11611 {
11612 self.start_inline_blame_timer(cx);
11613 } else {
11614 self.show_git_blame_inline = true
11615 }
11616 }
11617
11618 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11619 self.blame.as_ref()
11620 }
11621
11622 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11623 self.show_git_blame_gutter && self.has_blame_entries(cx)
11624 }
11625
11626 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11627 self.show_git_blame_inline
11628 && self.focus_handle.is_focused(cx)
11629 && !self.newest_selection_head_on_empty_line(cx)
11630 && self.has_blame_entries(cx)
11631 }
11632
11633 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11634 self.blame()
11635 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11636 }
11637
11638 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11639 let cursor_anchor = self.selections.newest_anchor().head();
11640
11641 let snapshot = self.buffer.read(cx).snapshot(cx);
11642 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11643
11644 snapshot.line_len(buffer_row) == 0
11645 }
11646
11647 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11648 let buffer_and_selection = maybe!({
11649 let selection = self.selections.newest::<Point>(cx);
11650 let selection_range = selection.range();
11651
11652 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11653 (buffer, selection_range.start.row..selection_range.end.row)
11654 } else {
11655 let buffer_ranges = self
11656 .buffer()
11657 .read(cx)
11658 .range_to_buffer_ranges(selection_range, cx);
11659
11660 let (buffer, range, _) = if selection.reversed {
11661 buffer_ranges.first()
11662 } else {
11663 buffer_ranges.last()
11664 }?;
11665
11666 let snapshot = buffer.read(cx).snapshot();
11667 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11668 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11669 (buffer.clone(), selection)
11670 };
11671
11672 Some((buffer, selection))
11673 });
11674
11675 let Some((buffer, selection)) = buffer_and_selection else {
11676 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11677 };
11678
11679 let Some(project) = self.project.as_ref() else {
11680 return Task::ready(Err(anyhow!("editor does not have project")));
11681 };
11682
11683 project.update(cx, |project, cx| {
11684 project.get_permalink_to_line(&buffer, selection, cx)
11685 })
11686 }
11687
11688 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11689 let permalink_task = self.get_permalink_to_line(cx);
11690 let workspace = self.workspace();
11691
11692 cx.spawn(|_, mut cx| async move {
11693 match permalink_task.await {
11694 Ok(permalink) => {
11695 cx.update(|cx| {
11696 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11697 })
11698 .ok();
11699 }
11700 Err(err) => {
11701 let message = format!("Failed to copy permalink: {err}");
11702
11703 Err::<(), anyhow::Error>(err).log_err();
11704
11705 if let Some(workspace) = workspace {
11706 workspace
11707 .update(&mut cx, |workspace, cx| {
11708 struct CopyPermalinkToLine;
11709
11710 workspace.show_toast(
11711 Toast::new(
11712 NotificationId::unique::<CopyPermalinkToLine>(),
11713 message,
11714 ),
11715 cx,
11716 )
11717 })
11718 .ok();
11719 }
11720 }
11721 }
11722 })
11723 .detach();
11724 }
11725
11726 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11727 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11728 if let Some(file) = self.target_file(cx) {
11729 if let Some(path) = file.path().to_str() {
11730 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11731 }
11732 }
11733 }
11734
11735 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11736 let permalink_task = self.get_permalink_to_line(cx);
11737 let workspace = self.workspace();
11738
11739 cx.spawn(|_, mut cx| async move {
11740 match permalink_task.await {
11741 Ok(permalink) => {
11742 cx.update(|cx| {
11743 cx.open_url(permalink.as_ref());
11744 })
11745 .ok();
11746 }
11747 Err(err) => {
11748 let message = format!("Failed to open permalink: {err}");
11749
11750 Err::<(), anyhow::Error>(err).log_err();
11751
11752 if let Some(workspace) = workspace {
11753 workspace
11754 .update(&mut cx, |workspace, cx| {
11755 struct OpenPermalinkToLine;
11756
11757 workspace.show_toast(
11758 Toast::new(
11759 NotificationId::unique::<OpenPermalinkToLine>(),
11760 message,
11761 ),
11762 cx,
11763 )
11764 })
11765 .ok();
11766 }
11767 }
11768 }
11769 })
11770 .detach();
11771 }
11772
11773 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11774 /// last highlight added will be used.
11775 ///
11776 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11777 pub fn highlight_rows<T: 'static>(
11778 &mut self,
11779 range: Range<Anchor>,
11780 color: Hsla,
11781 should_autoscroll: bool,
11782 cx: &mut ViewContext<Self>,
11783 ) {
11784 let snapshot = self.buffer().read(cx).snapshot(cx);
11785 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11786 let ix = row_highlights.binary_search_by(|highlight| {
11787 Ordering::Equal
11788 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11789 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11790 });
11791
11792 if let Err(mut ix) = ix {
11793 let index = post_inc(&mut self.highlight_order);
11794
11795 // If this range intersects with the preceding highlight, then merge it with
11796 // the preceding highlight. Otherwise insert a new highlight.
11797 let mut merged = false;
11798 if ix > 0 {
11799 let prev_highlight = &mut row_highlights[ix - 1];
11800 if prev_highlight
11801 .range
11802 .end
11803 .cmp(&range.start, &snapshot)
11804 .is_ge()
11805 {
11806 ix -= 1;
11807 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11808 prev_highlight.range.end = range.end;
11809 }
11810 merged = true;
11811 prev_highlight.index = index;
11812 prev_highlight.color = color;
11813 prev_highlight.should_autoscroll = should_autoscroll;
11814 }
11815 }
11816
11817 if !merged {
11818 row_highlights.insert(
11819 ix,
11820 RowHighlight {
11821 range: range.clone(),
11822 index,
11823 color,
11824 should_autoscroll,
11825 },
11826 );
11827 }
11828
11829 // If any of the following highlights intersect with this one, merge them.
11830 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11831 let highlight = &row_highlights[ix];
11832 if next_highlight
11833 .range
11834 .start
11835 .cmp(&highlight.range.end, &snapshot)
11836 .is_le()
11837 {
11838 if next_highlight
11839 .range
11840 .end
11841 .cmp(&highlight.range.end, &snapshot)
11842 .is_gt()
11843 {
11844 row_highlights[ix].range.end = next_highlight.range.end;
11845 }
11846 row_highlights.remove(ix + 1);
11847 } else {
11848 break;
11849 }
11850 }
11851 }
11852 }
11853
11854 /// Remove any highlighted row ranges of the given type that intersect the
11855 /// given ranges.
11856 pub fn remove_highlighted_rows<T: 'static>(
11857 &mut self,
11858 ranges_to_remove: Vec<Range<Anchor>>,
11859 cx: &mut ViewContext<Self>,
11860 ) {
11861 let snapshot = self.buffer().read(cx).snapshot(cx);
11862 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11863 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11864 row_highlights.retain(|highlight| {
11865 while let Some(range_to_remove) = ranges_to_remove.peek() {
11866 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11867 Ordering::Less | Ordering::Equal => {
11868 ranges_to_remove.next();
11869 }
11870 Ordering::Greater => {
11871 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11872 Ordering::Less | Ordering::Equal => {
11873 return false;
11874 }
11875 Ordering::Greater => break,
11876 }
11877 }
11878 }
11879 }
11880
11881 true
11882 })
11883 }
11884
11885 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11886 pub fn clear_row_highlights<T: 'static>(&mut self) {
11887 self.highlighted_rows.remove(&TypeId::of::<T>());
11888 }
11889
11890 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11891 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11892 self.highlighted_rows
11893 .get(&TypeId::of::<T>())
11894 .map_or(&[] as &[_], |vec| vec.as_slice())
11895 .iter()
11896 .map(|highlight| (highlight.range.clone(), highlight.color))
11897 }
11898
11899 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11900 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11901 /// Allows to ignore certain kinds of highlights.
11902 pub fn highlighted_display_rows(
11903 &mut self,
11904 cx: &mut WindowContext,
11905 ) -> BTreeMap<DisplayRow, Hsla> {
11906 let snapshot = self.snapshot(cx);
11907 let mut used_highlight_orders = HashMap::default();
11908 self.highlighted_rows
11909 .iter()
11910 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11911 .fold(
11912 BTreeMap::<DisplayRow, Hsla>::new(),
11913 |mut unique_rows, highlight| {
11914 let start = highlight.range.start.to_display_point(&snapshot);
11915 let end = highlight.range.end.to_display_point(&snapshot);
11916 let start_row = start.row().0;
11917 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11918 && end.column() == 0
11919 {
11920 end.row().0.saturating_sub(1)
11921 } else {
11922 end.row().0
11923 };
11924 for row in start_row..=end_row {
11925 let used_index =
11926 used_highlight_orders.entry(row).or_insert(highlight.index);
11927 if highlight.index >= *used_index {
11928 *used_index = highlight.index;
11929 unique_rows.insert(DisplayRow(row), highlight.color);
11930 }
11931 }
11932 unique_rows
11933 },
11934 )
11935 }
11936
11937 pub fn highlighted_display_row_for_autoscroll(
11938 &self,
11939 snapshot: &DisplaySnapshot,
11940 ) -> Option<DisplayRow> {
11941 self.highlighted_rows
11942 .values()
11943 .flat_map(|highlighted_rows| highlighted_rows.iter())
11944 .filter_map(|highlight| {
11945 if highlight.should_autoscroll {
11946 Some(highlight.range.start.to_display_point(snapshot).row())
11947 } else {
11948 None
11949 }
11950 })
11951 .min()
11952 }
11953
11954 pub fn set_search_within_ranges(
11955 &mut self,
11956 ranges: &[Range<Anchor>],
11957 cx: &mut ViewContext<Self>,
11958 ) {
11959 self.highlight_background::<SearchWithinRange>(
11960 ranges,
11961 |colors| colors.editor_document_highlight_read_background,
11962 cx,
11963 )
11964 }
11965
11966 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11967 self.breadcrumb_header = Some(new_header);
11968 }
11969
11970 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11971 self.clear_background_highlights::<SearchWithinRange>(cx);
11972 }
11973
11974 pub fn highlight_background<T: 'static>(
11975 &mut self,
11976 ranges: &[Range<Anchor>],
11977 color_fetcher: fn(&ThemeColors) -> Hsla,
11978 cx: &mut ViewContext<Self>,
11979 ) {
11980 self.background_highlights
11981 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11982 self.scrollbar_marker_state.dirty = true;
11983 cx.notify();
11984 }
11985
11986 pub fn clear_background_highlights<T: 'static>(
11987 &mut self,
11988 cx: &mut ViewContext<Self>,
11989 ) -> Option<BackgroundHighlight> {
11990 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11991 if !text_highlights.1.is_empty() {
11992 self.scrollbar_marker_state.dirty = true;
11993 cx.notify();
11994 }
11995 Some(text_highlights)
11996 }
11997
11998 pub fn highlight_gutter<T: 'static>(
11999 &mut self,
12000 ranges: &[Range<Anchor>],
12001 color_fetcher: fn(&AppContext) -> Hsla,
12002 cx: &mut ViewContext<Self>,
12003 ) {
12004 self.gutter_highlights
12005 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12006 cx.notify();
12007 }
12008
12009 pub fn clear_gutter_highlights<T: 'static>(
12010 &mut self,
12011 cx: &mut ViewContext<Self>,
12012 ) -> Option<GutterHighlight> {
12013 cx.notify();
12014 self.gutter_highlights.remove(&TypeId::of::<T>())
12015 }
12016
12017 #[cfg(feature = "test-support")]
12018 pub fn all_text_background_highlights(
12019 &mut self,
12020 cx: &mut ViewContext<Self>,
12021 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12022 let snapshot = self.snapshot(cx);
12023 let buffer = &snapshot.buffer_snapshot;
12024 let start = buffer.anchor_before(0);
12025 let end = buffer.anchor_after(buffer.len());
12026 let theme = cx.theme().colors();
12027 self.background_highlights_in_range(start..end, &snapshot, theme)
12028 }
12029
12030 #[cfg(feature = "test-support")]
12031 pub fn search_background_highlights(
12032 &mut self,
12033 cx: &mut ViewContext<Self>,
12034 ) -> Vec<Range<Point>> {
12035 let snapshot = self.buffer().read(cx).snapshot(cx);
12036
12037 let highlights = self
12038 .background_highlights
12039 .get(&TypeId::of::<items::BufferSearchHighlights>());
12040
12041 if let Some((_color, ranges)) = highlights {
12042 ranges
12043 .iter()
12044 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12045 .collect_vec()
12046 } else {
12047 vec![]
12048 }
12049 }
12050
12051 fn document_highlights_for_position<'a>(
12052 &'a self,
12053 position: Anchor,
12054 buffer: &'a MultiBufferSnapshot,
12055 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12056 let read_highlights = self
12057 .background_highlights
12058 .get(&TypeId::of::<DocumentHighlightRead>())
12059 .map(|h| &h.1);
12060 let write_highlights = self
12061 .background_highlights
12062 .get(&TypeId::of::<DocumentHighlightWrite>())
12063 .map(|h| &h.1);
12064 let left_position = position.bias_left(buffer);
12065 let right_position = position.bias_right(buffer);
12066 read_highlights
12067 .into_iter()
12068 .chain(write_highlights)
12069 .flat_map(move |ranges| {
12070 let start_ix = match ranges.binary_search_by(|probe| {
12071 let cmp = probe.end.cmp(&left_position, buffer);
12072 if cmp.is_ge() {
12073 Ordering::Greater
12074 } else {
12075 Ordering::Less
12076 }
12077 }) {
12078 Ok(i) | Err(i) => i,
12079 };
12080
12081 ranges[start_ix..]
12082 .iter()
12083 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12084 })
12085 }
12086
12087 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12088 self.background_highlights
12089 .get(&TypeId::of::<T>())
12090 .map_or(false, |(_, highlights)| !highlights.is_empty())
12091 }
12092
12093 pub fn background_highlights_in_range(
12094 &self,
12095 search_range: Range<Anchor>,
12096 display_snapshot: &DisplaySnapshot,
12097 theme: &ThemeColors,
12098 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12099 let mut results = Vec::new();
12100 for (color_fetcher, ranges) in self.background_highlights.values() {
12101 let color = color_fetcher(theme);
12102 let start_ix = match ranges.binary_search_by(|probe| {
12103 let cmp = probe
12104 .end
12105 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12106 if cmp.is_gt() {
12107 Ordering::Greater
12108 } else {
12109 Ordering::Less
12110 }
12111 }) {
12112 Ok(i) | Err(i) => i,
12113 };
12114 for range in &ranges[start_ix..] {
12115 if range
12116 .start
12117 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12118 .is_ge()
12119 {
12120 break;
12121 }
12122
12123 let start = range.start.to_display_point(display_snapshot);
12124 let end = range.end.to_display_point(display_snapshot);
12125 results.push((start..end, color))
12126 }
12127 }
12128 results
12129 }
12130
12131 pub fn background_highlight_row_ranges<T: 'static>(
12132 &self,
12133 search_range: Range<Anchor>,
12134 display_snapshot: &DisplaySnapshot,
12135 count: usize,
12136 ) -> Vec<RangeInclusive<DisplayPoint>> {
12137 let mut results = Vec::new();
12138 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12139 return vec![];
12140 };
12141
12142 let start_ix = match ranges.binary_search_by(|probe| {
12143 let cmp = probe
12144 .end
12145 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12146 if cmp.is_gt() {
12147 Ordering::Greater
12148 } else {
12149 Ordering::Less
12150 }
12151 }) {
12152 Ok(i) | Err(i) => i,
12153 };
12154 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12155 if let (Some(start_display), Some(end_display)) = (start, end) {
12156 results.push(
12157 start_display.to_display_point(display_snapshot)
12158 ..=end_display.to_display_point(display_snapshot),
12159 );
12160 }
12161 };
12162 let mut start_row: Option<Point> = None;
12163 let mut end_row: Option<Point> = None;
12164 if ranges.len() > count {
12165 return Vec::new();
12166 }
12167 for range in &ranges[start_ix..] {
12168 if range
12169 .start
12170 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12171 .is_ge()
12172 {
12173 break;
12174 }
12175 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12176 if let Some(current_row) = &end_row {
12177 if end.row == current_row.row {
12178 continue;
12179 }
12180 }
12181 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12182 if start_row.is_none() {
12183 assert_eq!(end_row, None);
12184 start_row = Some(start);
12185 end_row = Some(end);
12186 continue;
12187 }
12188 if let Some(current_end) = end_row.as_mut() {
12189 if start.row > current_end.row + 1 {
12190 push_region(start_row, end_row);
12191 start_row = Some(start);
12192 end_row = Some(end);
12193 } else {
12194 // Merge two hunks.
12195 *current_end = end;
12196 }
12197 } else {
12198 unreachable!();
12199 }
12200 }
12201 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12202 push_region(start_row, end_row);
12203 results
12204 }
12205
12206 pub fn gutter_highlights_in_range(
12207 &self,
12208 search_range: Range<Anchor>,
12209 display_snapshot: &DisplaySnapshot,
12210 cx: &AppContext,
12211 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12212 let mut results = Vec::new();
12213 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12214 let color = color_fetcher(cx);
12215 let start_ix = match ranges.binary_search_by(|probe| {
12216 let cmp = probe
12217 .end
12218 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12219 if cmp.is_gt() {
12220 Ordering::Greater
12221 } else {
12222 Ordering::Less
12223 }
12224 }) {
12225 Ok(i) | Err(i) => i,
12226 };
12227 for range in &ranges[start_ix..] {
12228 if range
12229 .start
12230 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12231 .is_ge()
12232 {
12233 break;
12234 }
12235
12236 let start = range.start.to_display_point(display_snapshot);
12237 let end = range.end.to_display_point(display_snapshot);
12238 results.push((start..end, color))
12239 }
12240 }
12241 results
12242 }
12243
12244 /// Get the text ranges corresponding to the redaction query
12245 pub fn redacted_ranges(
12246 &self,
12247 search_range: Range<Anchor>,
12248 display_snapshot: &DisplaySnapshot,
12249 cx: &WindowContext,
12250 ) -> Vec<Range<DisplayPoint>> {
12251 display_snapshot
12252 .buffer_snapshot
12253 .redacted_ranges(search_range, |file| {
12254 if let Some(file) = file {
12255 file.is_private()
12256 && EditorSettings::get(
12257 Some(SettingsLocation {
12258 worktree_id: file.worktree_id(cx),
12259 path: file.path().as_ref(),
12260 }),
12261 cx,
12262 )
12263 .redact_private_values
12264 } else {
12265 false
12266 }
12267 })
12268 .map(|range| {
12269 range.start.to_display_point(display_snapshot)
12270 ..range.end.to_display_point(display_snapshot)
12271 })
12272 .collect()
12273 }
12274
12275 pub fn highlight_text<T: 'static>(
12276 &mut self,
12277 ranges: Vec<Range<Anchor>>,
12278 style: HighlightStyle,
12279 cx: &mut ViewContext<Self>,
12280 ) {
12281 self.display_map.update(cx, |map, _| {
12282 map.highlight_text(TypeId::of::<T>(), ranges, style)
12283 });
12284 cx.notify();
12285 }
12286
12287 pub(crate) fn highlight_inlays<T: 'static>(
12288 &mut self,
12289 highlights: Vec<InlayHighlight>,
12290 style: HighlightStyle,
12291 cx: &mut ViewContext<Self>,
12292 ) {
12293 self.display_map.update(cx, |map, _| {
12294 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12295 });
12296 cx.notify();
12297 }
12298
12299 pub fn text_highlights<'a, T: 'static>(
12300 &'a self,
12301 cx: &'a AppContext,
12302 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12303 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12304 }
12305
12306 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12307 let cleared = self
12308 .display_map
12309 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12310 if cleared {
12311 cx.notify();
12312 }
12313 }
12314
12315 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12316 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12317 && self.focus_handle.is_focused(cx)
12318 }
12319
12320 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12321 self.show_cursor_when_unfocused = is_enabled;
12322 cx.notify();
12323 }
12324
12325 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12326 cx.notify();
12327 }
12328
12329 fn on_buffer_event(
12330 &mut self,
12331 multibuffer: Model<MultiBuffer>,
12332 event: &multi_buffer::Event,
12333 cx: &mut ViewContext<Self>,
12334 ) {
12335 match event {
12336 multi_buffer::Event::Edited {
12337 singleton_buffer_edited,
12338 } => {
12339 self.scrollbar_marker_state.dirty = true;
12340 self.active_indent_guides_state.dirty = true;
12341 self.refresh_active_diagnostics(cx);
12342 self.refresh_code_actions(cx);
12343 if self.has_active_inline_completion(cx) {
12344 self.update_visible_inline_completion(cx);
12345 }
12346 cx.emit(EditorEvent::BufferEdited);
12347 cx.emit(SearchEvent::MatchesInvalidated);
12348 if *singleton_buffer_edited {
12349 if let Some(project) = &self.project {
12350 let project = project.read(cx);
12351 #[allow(clippy::mutable_key_type)]
12352 let languages_affected = multibuffer
12353 .read(cx)
12354 .all_buffers()
12355 .into_iter()
12356 .filter_map(|buffer| {
12357 let buffer = buffer.read(cx);
12358 let language = buffer.language()?;
12359 if project.is_local()
12360 && project.language_servers_for_buffer(buffer, cx).count() == 0
12361 {
12362 None
12363 } else {
12364 Some(language)
12365 }
12366 })
12367 .cloned()
12368 .collect::<HashSet<_>>();
12369 if !languages_affected.is_empty() {
12370 self.refresh_inlay_hints(
12371 InlayHintRefreshReason::BufferEdited(languages_affected),
12372 cx,
12373 );
12374 }
12375 }
12376 }
12377
12378 let Some(project) = &self.project else { return };
12379 let (telemetry, is_via_ssh) = {
12380 let project = project.read(cx);
12381 let telemetry = project.client().telemetry().clone();
12382 let is_via_ssh = project.is_via_ssh();
12383 (telemetry, is_via_ssh)
12384 };
12385 refresh_linked_ranges(self, cx);
12386 telemetry.log_edit_event("editor", is_via_ssh);
12387 }
12388 multi_buffer::Event::ExcerptsAdded {
12389 buffer,
12390 predecessor,
12391 excerpts,
12392 } => {
12393 self.tasks_update_task = Some(self.refresh_runnables(cx));
12394 cx.emit(EditorEvent::ExcerptsAdded {
12395 buffer: buffer.clone(),
12396 predecessor: *predecessor,
12397 excerpts: excerpts.clone(),
12398 });
12399 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12400 }
12401 multi_buffer::Event::ExcerptsRemoved { ids } => {
12402 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12403 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12404 }
12405 multi_buffer::Event::ExcerptsEdited { ids } => {
12406 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12407 }
12408 multi_buffer::Event::ExcerptsExpanded { ids } => {
12409 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12410 }
12411 multi_buffer::Event::Reparsed(buffer_id) => {
12412 self.tasks_update_task = Some(self.refresh_runnables(cx));
12413
12414 cx.emit(EditorEvent::Reparsed(*buffer_id));
12415 }
12416 multi_buffer::Event::LanguageChanged(buffer_id) => {
12417 linked_editing_ranges::refresh_linked_ranges(self, cx);
12418 cx.emit(EditorEvent::Reparsed(*buffer_id));
12419 cx.notify();
12420 }
12421 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12422 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12423 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12424 cx.emit(EditorEvent::TitleChanged)
12425 }
12426 multi_buffer::Event::DiffBaseChanged => {
12427 self.scrollbar_marker_state.dirty = true;
12428 cx.emit(EditorEvent::DiffBaseChanged);
12429 cx.notify();
12430 }
12431 multi_buffer::Event::DiffUpdated { buffer } => {
12432 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12433 cx.notify();
12434 }
12435 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12436 multi_buffer::Event::DiagnosticsUpdated => {
12437 self.refresh_active_diagnostics(cx);
12438 self.scrollbar_marker_state.dirty = true;
12439 cx.notify();
12440 }
12441 _ => {}
12442 };
12443 }
12444
12445 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12446 cx.notify();
12447 }
12448
12449 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12450 self.tasks_update_task = Some(self.refresh_runnables(cx));
12451 self.refresh_inline_completion(true, false, cx);
12452 self.refresh_inlay_hints(
12453 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12454 self.selections.newest_anchor().head(),
12455 &self.buffer.read(cx).snapshot(cx),
12456 cx,
12457 )),
12458 cx,
12459 );
12460
12461 let old_cursor_shape = self.cursor_shape;
12462
12463 {
12464 let editor_settings = EditorSettings::get_global(cx);
12465 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12466 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12467 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12468 }
12469
12470 if old_cursor_shape != self.cursor_shape {
12471 cx.emit(EditorEvent::CursorShapeChanged);
12472 }
12473
12474 let project_settings = ProjectSettings::get_global(cx);
12475 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12476
12477 if self.mode == EditorMode::Full {
12478 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12479 if self.git_blame_inline_enabled != inline_blame_enabled {
12480 self.toggle_git_blame_inline_internal(false, cx);
12481 }
12482 }
12483
12484 cx.notify();
12485 }
12486
12487 pub fn set_searchable(&mut self, searchable: bool) {
12488 self.searchable = searchable;
12489 }
12490
12491 pub fn searchable(&self) -> bool {
12492 self.searchable
12493 }
12494
12495 fn open_proposed_changes_editor(
12496 &mut self,
12497 _: &OpenProposedChangesEditor,
12498 cx: &mut ViewContext<Self>,
12499 ) {
12500 let Some(workspace) = self.workspace() else {
12501 cx.propagate();
12502 return;
12503 };
12504
12505 let selections = self.selections.all::<usize>(cx);
12506 let buffer = self.buffer.read(cx);
12507 let mut new_selections_by_buffer = HashMap::default();
12508 for selection in selections {
12509 for (buffer, range, _) in
12510 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12511 {
12512 let mut range = range.to_point(buffer.read(cx));
12513 range.start.column = 0;
12514 range.end.column = buffer.read(cx).line_len(range.end.row);
12515 new_selections_by_buffer
12516 .entry(buffer)
12517 .or_insert(Vec::new())
12518 .push(range)
12519 }
12520 }
12521
12522 let proposed_changes_buffers = new_selections_by_buffer
12523 .into_iter()
12524 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12525 .collect::<Vec<_>>();
12526 let proposed_changes_editor = cx.new_view(|cx| {
12527 ProposedChangesEditor::new(
12528 "Proposed changes",
12529 proposed_changes_buffers,
12530 self.project.clone(),
12531 cx,
12532 )
12533 });
12534
12535 cx.window_context().defer(move |cx| {
12536 workspace.update(cx, |workspace, cx| {
12537 workspace.active_pane().update(cx, |pane, cx| {
12538 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12539 });
12540 });
12541 });
12542 }
12543
12544 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12545 self.open_excerpts_common(true, cx)
12546 }
12547
12548 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12549 self.open_excerpts_common(false, cx)
12550 }
12551
12552 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
12553 let selections = self.selections.all::<usize>(cx);
12554 let buffer = self.buffer.read(cx);
12555 if buffer.is_singleton() {
12556 cx.propagate();
12557 return;
12558 }
12559
12560 let Some(workspace) = self.workspace() else {
12561 cx.propagate();
12562 return;
12563 };
12564
12565 let mut new_selections_by_buffer = HashMap::default();
12566 for selection in selections {
12567 for (mut buffer_handle, mut range, _) in
12568 buffer.range_to_buffer_ranges(selection.range(), cx)
12569 {
12570 // When editing branch buffers, jump to the corresponding location
12571 // in their base buffer.
12572 let buffer = buffer_handle.read(cx);
12573 if let Some(base_buffer) = buffer.diff_base_buffer() {
12574 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12575 buffer_handle = base_buffer;
12576 }
12577
12578 if selection.reversed {
12579 mem::swap(&mut range.start, &mut range.end);
12580 }
12581 new_selections_by_buffer
12582 .entry(buffer_handle)
12583 .or_insert(Vec::new())
12584 .push(range)
12585 }
12586 }
12587
12588 // We defer the pane interaction because we ourselves are a workspace item
12589 // and activating a new item causes the pane to call a method on us reentrantly,
12590 // which panics if we're on the stack.
12591 cx.window_context().defer(move |cx| {
12592 workspace.update(cx, |workspace, cx| {
12593 let pane = if split {
12594 workspace.adjacent_pane(cx)
12595 } else {
12596 workspace.active_pane().clone()
12597 };
12598
12599 for (buffer, ranges) in new_selections_by_buffer {
12600 let editor =
12601 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12602 editor.update(cx, |editor, cx| {
12603 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
12604 s.select_ranges(ranges);
12605 });
12606 });
12607 }
12608 })
12609 });
12610 }
12611
12612 fn jump(
12613 &mut self,
12614 path: ProjectPath,
12615 position: Point,
12616 anchor: language::Anchor,
12617 offset_from_top: u32,
12618 cx: &mut ViewContext<Self>,
12619 ) {
12620 let workspace = self.workspace();
12621 cx.spawn(|_, mut cx| async move {
12622 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
12623 let editor = workspace.update(&mut cx, |workspace, cx| {
12624 // Reset the preview item id before opening the new item
12625 workspace.active_pane().update(cx, |pane, cx| {
12626 pane.set_preview_item_id(None, cx);
12627 });
12628 workspace.open_path_preview(path, None, true, true, cx)
12629 })?;
12630 let editor = editor
12631 .await?
12632 .downcast::<Editor>()
12633 .ok_or_else(|| anyhow!("opened item was not an editor"))?
12634 .downgrade();
12635 editor.update(&mut cx, |editor, cx| {
12636 let buffer = editor
12637 .buffer()
12638 .read(cx)
12639 .as_singleton()
12640 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
12641 let buffer = buffer.read(cx);
12642 let cursor = if buffer.can_resolve(&anchor) {
12643 language::ToPoint::to_point(&anchor, buffer)
12644 } else {
12645 buffer.clip_point(position, Bias::Left)
12646 };
12647
12648 let nav_history = editor.nav_history.take();
12649 editor.change_selections(
12650 Some(Autoscroll::top_relative(offset_from_top as usize)),
12651 cx,
12652 |s| {
12653 s.select_ranges([cursor..cursor]);
12654 },
12655 );
12656 editor.nav_history = nav_history;
12657
12658 anyhow::Ok(())
12659 })??;
12660
12661 anyhow::Ok(())
12662 })
12663 .detach_and_log_err(cx);
12664 }
12665
12666 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12667 let snapshot = self.buffer.read(cx).read(cx);
12668 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12669 Some(
12670 ranges
12671 .iter()
12672 .map(move |range| {
12673 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12674 })
12675 .collect(),
12676 )
12677 }
12678
12679 fn selection_replacement_ranges(
12680 &self,
12681 range: Range<OffsetUtf16>,
12682 cx: &mut AppContext,
12683 ) -> Vec<Range<OffsetUtf16>> {
12684 let selections = self.selections.all::<OffsetUtf16>(cx);
12685 let newest_selection = selections
12686 .iter()
12687 .max_by_key(|selection| selection.id)
12688 .unwrap();
12689 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12690 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12691 let snapshot = self.buffer.read(cx).read(cx);
12692 selections
12693 .into_iter()
12694 .map(|mut selection| {
12695 selection.start.0 =
12696 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12697 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12698 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12699 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12700 })
12701 .collect()
12702 }
12703
12704 fn report_editor_event(
12705 &self,
12706 operation: &'static str,
12707 file_extension: Option<String>,
12708 cx: &AppContext,
12709 ) {
12710 if cfg!(any(test, feature = "test-support")) {
12711 return;
12712 }
12713
12714 let Some(project) = &self.project else { return };
12715
12716 // If None, we are in a file without an extension
12717 let file = self
12718 .buffer
12719 .read(cx)
12720 .as_singleton()
12721 .and_then(|b| b.read(cx).file());
12722 let file_extension = file_extension.or(file
12723 .as_ref()
12724 .and_then(|file| Path::new(file.file_name(cx)).extension())
12725 .and_then(|e| e.to_str())
12726 .map(|a| a.to_string()));
12727
12728 let vim_mode = cx
12729 .global::<SettingsStore>()
12730 .raw_user_settings()
12731 .get("vim_mode")
12732 == Some(&serde_json::Value::Bool(true));
12733
12734 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12735 == language::language_settings::InlineCompletionProvider::Copilot;
12736 let copilot_enabled_for_language = self
12737 .buffer
12738 .read(cx)
12739 .settings_at(0, cx)
12740 .show_inline_completions;
12741
12742 let project = project.read(cx);
12743 let telemetry = project.client().telemetry().clone();
12744 telemetry.report_editor_event(
12745 file_extension,
12746 vim_mode,
12747 operation,
12748 copilot_enabled,
12749 copilot_enabled_for_language,
12750 project.is_via_ssh(),
12751 )
12752 }
12753
12754 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12755 /// with each line being an array of {text, highlight} objects.
12756 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12757 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12758 return;
12759 };
12760
12761 #[derive(Serialize)]
12762 struct Chunk<'a> {
12763 text: String,
12764 highlight: Option<&'a str>,
12765 }
12766
12767 let snapshot = buffer.read(cx).snapshot();
12768 let range = self
12769 .selected_text_range(false, cx)
12770 .and_then(|selection| {
12771 if selection.range.is_empty() {
12772 None
12773 } else {
12774 Some(selection.range)
12775 }
12776 })
12777 .unwrap_or_else(|| 0..snapshot.len());
12778
12779 let chunks = snapshot.chunks(range, true);
12780 let mut lines = Vec::new();
12781 let mut line: VecDeque<Chunk> = VecDeque::new();
12782
12783 let Some(style) = self.style.as_ref() else {
12784 return;
12785 };
12786
12787 for chunk in chunks {
12788 let highlight = chunk
12789 .syntax_highlight_id
12790 .and_then(|id| id.name(&style.syntax));
12791 let mut chunk_lines = chunk.text.split('\n').peekable();
12792 while let Some(text) = chunk_lines.next() {
12793 let mut merged_with_last_token = false;
12794 if let Some(last_token) = line.back_mut() {
12795 if last_token.highlight == highlight {
12796 last_token.text.push_str(text);
12797 merged_with_last_token = true;
12798 }
12799 }
12800
12801 if !merged_with_last_token {
12802 line.push_back(Chunk {
12803 text: text.into(),
12804 highlight,
12805 });
12806 }
12807
12808 if chunk_lines.peek().is_some() {
12809 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12810 line.pop_front();
12811 }
12812 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12813 line.pop_back();
12814 }
12815
12816 lines.push(mem::take(&mut line));
12817 }
12818 }
12819 }
12820
12821 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12822 return;
12823 };
12824 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12825 }
12826
12827 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12828 &self.inlay_hint_cache
12829 }
12830
12831 pub fn replay_insert_event(
12832 &mut self,
12833 text: &str,
12834 relative_utf16_range: Option<Range<isize>>,
12835 cx: &mut ViewContext<Self>,
12836 ) {
12837 if !self.input_enabled {
12838 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12839 return;
12840 }
12841 if let Some(relative_utf16_range) = relative_utf16_range {
12842 let selections = self.selections.all::<OffsetUtf16>(cx);
12843 self.change_selections(None, cx, |s| {
12844 let new_ranges = selections.into_iter().map(|range| {
12845 let start = OffsetUtf16(
12846 range
12847 .head()
12848 .0
12849 .saturating_add_signed(relative_utf16_range.start),
12850 );
12851 let end = OffsetUtf16(
12852 range
12853 .head()
12854 .0
12855 .saturating_add_signed(relative_utf16_range.end),
12856 );
12857 start..end
12858 });
12859 s.select_ranges(new_ranges);
12860 });
12861 }
12862
12863 self.handle_input(text, cx);
12864 }
12865
12866 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12867 let Some(provider) = self.semantics_provider.as_ref() else {
12868 return false;
12869 };
12870
12871 let mut supports = false;
12872 self.buffer().read(cx).for_each_buffer(|buffer| {
12873 supports |= provider.supports_inlay_hints(buffer, cx);
12874 });
12875 supports
12876 }
12877
12878 pub fn focus(&self, cx: &mut WindowContext) {
12879 cx.focus(&self.focus_handle)
12880 }
12881
12882 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12883 self.focus_handle.is_focused(cx)
12884 }
12885
12886 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12887 cx.emit(EditorEvent::Focused);
12888
12889 if let Some(descendant) = self
12890 .last_focused_descendant
12891 .take()
12892 .and_then(|descendant| descendant.upgrade())
12893 {
12894 cx.focus(&descendant);
12895 } else {
12896 if let Some(blame) = self.blame.as_ref() {
12897 blame.update(cx, GitBlame::focus)
12898 }
12899
12900 self.blink_manager.update(cx, BlinkManager::enable);
12901 self.show_cursor_names(cx);
12902 self.buffer.update(cx, |buffer, cx| {
12903 buffer.finalize_last_transaction(cx);
12904 if self.leader_peer_id.is_none() {
12905 buffer.set_active_selections(
12906 &self.selections.disjoint_anchors(),
12907 self.selections.line_mode,
12908 self.cursor_shape,
12909 cx,
12910 );
12911 }
12912 });
12913 }
12914 }
12915
12916 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12917 cx.emit(EditorEvent::FocusedIn)
12918 }
12919
12920 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12921 if event.blurred != self.focus_handle {
12922 self.last_focused_descendant = Some(event.blurred);
12923 }
12924 }
12925
12926 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12927 self.blink_manager.update(cx, BlinkManager::disable);
12928 self.buffer
12929 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12930
12931 if let Some(blame) = self.blame.as_ref() {
12932 blame.update(cx, GitBlame::blur)
12933 }
12934 if !self.hover_state.focused(cx) {
12935 hide_hover(self, cx);
12936 }
12937
12938 self.hide_context_menu(cx);
12939 cx.emit(EditorEvent::Blurred);
12940 cx.notify();
12941 }
12942
12943 pub fn register_action<A: Action>(
12944 &mut self,
12945 listener: impl Fn(&A, &mut WindowContext) + 'static,
12946 ) -> Subscription {
12947 let id = self.next_editor_action_id.post_inc();
12948 let listener = Arc::new(listener);
12949 self.editor_actions.borrow_mut().insert(
12950 id,
12951 Box::new(move |cx| {
12952 let cx = cx.window_context();
12953 let listener = listener.clone();
12954 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12955 let action = action.downcast_ref().unwrap();
12956 if phase == DispatchPhase::Bubble {
12957 listener(action, cx)
12958 }
12959 })
12960 }),
12961 );
12962
12963 let editor_actions = self.editor_actions.clone();
12964 Subscription::new(move || {
12965 editor_actions.borrow_mut().remove(&id);
12966 })
12967 }
12968
12969 pub fn file_header_size(&self) -> u32 {
12970 FILE_HEADER_HEIGHT
12971 }
12972
12973 pub fn revert(
12974 &mut self,
12975 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12976 cx: &mut ViewContext<Self>,
12977 ) {
12978 self.buffer().update(cx, |multi_buffer, cx| {
12979 for (buffer_id, changes) in revert_changes {
12980 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12981 buffer.update(cx, |buffer, cx| {
12982 buffer.edit(
12983 changes.into_iter().map(|(range, text)| {
12984 (range, text.to_string().map(Arc::<str>::from))
12985 }),
12986 None,
12987 cx,
12988 );
12989 });
12990 }
12991 }
12992 });
12993 self.change_selections(None, cx, |selections| selections.refresh());
12994 }
12995
12996 pub fn to_pixel_point(
12997 &mut self,
12998 source: multi_buffer::Anchor,
12999 editor_snapshot: &EditorSnapshot,
13000 cx: &mut ViewContext<Self>,
13001 ) -> Option<gpui::Point<Pixels>> {
13002 let source_point = source.to_display_point(editor_snapshot);
13003 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13004 }
13005
13006 pub fn display_to_pixel_point(
13007 &mut self,
13008 source: DisplayPoint,
13009 editor_snapshot: &EditorSnapshot,
13010 cx: &mut ViewContext<Self>,
13011 ) -> Option<gpui::Point<Pixels>> {
13012 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13013 let text_layout_details = self.text_layout_details(cx);
13014 let scroll_top = text_layout_details
13015 .scroll_anchor
13016 .scroll_position(editor_snapshot)
13017 .y;
13018
13019 if source.row().as_f32() < scroll_top.floor() {
13020 return None;
13021 }
13022 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13023 let source_y = line_height * (source.row().as_f32() - scroll_top);
13024 Some(gpui::Point::new(source_x, source_y))
13025 }
13026
13027 pub fn has_active_completions_menu(&self) -> bool {
13028 self.context_menu.read().as_ref().map_or(false, |menu| {
13029 menu.visible() && matches!(menu, ContextMenu::Completions(_))
13030 })
13031 }
13032
13033 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13034 self.addons
13035 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13036 }
13037
13038 pub fn unregister_addon<T: Addon>(&mut self) {
13039 self.addons.remove(&std::any::TypeId::of::<T>());
13040 }
13041
13042 pub fn addon<T: Addon>(&self) -> Option<&T> {
13043 let type_id = std::any::TypeId::of::<T>();
13044 self.addons
13045 .get(&type_id)
13046 .and_then(|item| item.to_any().downcast_ref::<T>())
13047 }
13048}
13049
13050fn hunks_for_selections(
13051 multi_buffer_snapshot: &MultiBufferSnapshot,
13052 selections: &[Selection<Anchor>],
13053) -> Vec<MultiBufferDiffHunk> {
13054 let buffer_rows_for_selections = selections.iter().map(|selection| {
13055 let head = selection.head();
13056 let tail = selection.tail();
13057 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
13058 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
13059 if start > end {
13060 end..start
13061 } else {
13062 start..end
13063 }
13064 });
13065
13066 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
13067}
13068
13069pub fn hunks_for_rows(
13070 rows: impl Iterator<Item = Range<MultiBufferRow>>,
13071 multi_buffer_snapshot: &MultiBufferSnapshot,
13072) -> Vec<MultiBufferDiffHunk> {
13073 let mut hunks = Vec::new();
13074 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13075 HashMap::default();
13076 for selected_multi_buffer_rows in rows {
13077 let query_rows =
13078 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
13079 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
13080 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13081 // when the caret is just above or just below the deleted hunk.
13082 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13083 let related_to_selection = if allow_adjacent {
13084 hunk.row_range.overlaps(&query_rows)
13085 || hunk.row_range.start == query_rows.end
13086 || hunk.row_range.end == query_rows.start
13087 } else {
13088 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
13089 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
13090 hunk.row_range.overlaps(&selected_multi_buffer_rows)
13091 || selected_multi_buffer_rows.end == hunk.row_range.start
13092 };
13093 if related_to_selection {
13094 if !processed_buffer_rows
13095 .entry(hunk.buffer_id)
13096 .or_default()
13097 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13098 {
13099 continue;
13100 }
13101 hunks.push(hunk);
13102 }
13103 }
13104 }
13105
13106 hunks
13107}
13108
13109pub trait CollaborationHub {
13110 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13111 fn user_participant_indices<'a>(
13112 &self,
13113 cx: &'a AppContext,
13114 ) -> &'a HashMap<u64, ParticipantIndex>;
13115 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13116}
13117
13118impl CollaborationHub for Model<Project> {
13119 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13120 self.read(cx).collaborators()
13121 }
13122
13123 fn user_participant_indices<'a>(
13124 &self,
13125 cx: &'a AppContext,
13126 ) -> &'a HashMap<u64, ParticipantIndex> {
13127 self.read(cx).user_store().read(cx).participant_indices()
13128 }
13129
13130 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13131 let this = self.read(cx);
13132 let user_ids = this.collaborators().values().map(|c| c.user_id);
13133 this.user_store().read_with(cx, |user_store, cx| {
13134 user_store.participant_names(user_ids, cx)
13135 })
13136 }
13137}
13138
13139pub trait SemanticsProvider {
13140 fn hover(
13141 &self,
13142 buffer: &Model<Buffer>,
13143 position: text::Anchor,
13144 cx: &mut AppContext,
13145 ) -> Option<Task<Vec<project::Hover>>>;
13146
13147 fn inlay_hints(
13148 &self,
13149 buffer_handle: Model<Buffer>,
13150 range: Range<text::Anchor>,
13151 cx: &mut AppContext,
13152 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13153
13154 fn resolve_inlay_hint(
13155 &self,
13156 hint: InlayHint,
13157 buffer_handle: Model<Buffer>,
13158 server_id: LanguageServerId,
13159 cx: &mut AppContext,
13160 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13161
13162 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13163
13164 fn document_highlights(
13165 &self,
13166 buffer: &Model<Buffer>,
13167 position: text::Anchor,
13168 cx: &mut AppContext,
13169 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13170
13171 fn definitions(
13172 &self,
13173 buffer: &Model<Buffer>,
13174 position: text::Anchor,
13175 kind: GotoDefinitionKind,
13176 cx: &mut AppContext,
13177 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13178
13179 fn range_for_rename(
13180 &self,
13181 buffer: &Model<Buffer>,
13182 position: text::Anchor,
13183 cx: &mut AppContext,
13184 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13185
13186 fn perform_rename(
13187 &self,
13188 buffer: &Model<Buffer>,
13189 position: text::Anchor,
13190 new_name: String,
13191 cx: &mut AppContext,
13192 ) -> Option<Task<Result<ProjectTransaction>>>;
13193}
13194
13195pub trait CompletionProvider {
13196 fn completions(
13197 &self,
13198 buffer: &Model<Buffer>,
13199 buffer_position: text::Anchor,
13200 trigger: CompletionContext,
13201 cx: &mut ViewContext<Editor>,
13202 ) -> Task<Result<Vec<Completion>>>;
13203
13204 fn resolve_completions(
13205 &self,
13206 buffer: Model<Buffer>,
13207 completion_indices: Vec<usize>,
13208 completions: Arc<RwLock<Box<[Completion]>>>,
13209 cx: &mut ViewContext<Editor>,
13210 ) -> Task<Result<bool>>;
13211
13212 fn apply_additional_edits_for_completion(
13213 &self,
13214 buffer: Model<Buffer>,
13215 completion: Completion,
13216 push_to_history: bool,
13217 cx: &mut ViewContext<Editor>,
13218 ) -> Task<Result<Option<language::Transaction>>>;
13219
13220 fn is_completion_trigger(
13221 &self,
13222 buffer: &Model<Buffer>,
13223 position: language::Anchor,
13224 text: &str,
13225 trigger_in_words: bool,
13226 cx: &mut ViewContext<Editor>,
13227 ) -> bool;
13228
13229 fn sort_completions(&self) -> bool {
13230 true
13231 }
13232}
13233
13234pub trait CodeActionProvider {
13235 fn code_actions(
13236 &self,
13237 buffer: &Model<Buffer>,
13238 range: Range<text::Anchor>,
13239 cx: &mut WindowContext,
13240 ) -> Task<Result<Vec<CodeAction>>>;
13241
13242 fn apply_code_action(
13243 &self,
13244 buffer_handle: Model<Buffer>,
13245 action: CodeAction,
13246 excerpt_id: ExcerptId,
13247 push_to_history: bool,
13248 cx: &mut WindowContext,
13249 ) -> Task<Result<ProjectTransaction>>;
13250}
13251
13252impl CodeActionProvider for Model<Project> {
13253 fn code_actions(
13254 &self,
13255 buffer: &Model<Buffer>,
13256 range: Range<text::Anchor>,
13257 cx: &mut WindowContext,
13258 ) -> Task<Result<Vec<CodeAction>>> {
13259 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
13260 }
13261
13262 fn apply_code_action(
13263 &self,
13264 buffer_handle: Model<Buffer>,
13265 action: CodeAction,
13266 _excerpt_id: ExcerptId,
13267 push_to_history: bool,
13268 cx: &mut WindowContext,
13269 ) -> Task<Result<ProjectTransaction>> {
13270 self.update(cx, |project, cx| {
13271 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13272 })
13273 }
13274}
13275
13276fn snippet_completions(
13277 project: &Project,
13278 buffer: &Model<Buffer>,
13279 buffer_position: text::Anchor,
13280 cx: &mut AppContext,
13281) -> Vec<Completion> {
13282 let language = buffer.read(cx).language_at(buffer_position);
13283 let language_name = language.as_ref().map(|language| language.lsp_id());
13284 let snippet_store = project.snippets().read(cx);
13285 let snippets = snippet_store.snippets_for(language_name, cx);
13286
13287 if snippets.is_empty() {
13288 return vec![];
13289 }
13290 let snapshot = buffer.read(cx).text_snapshot();
13291 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13292
13293 let scope = language.map(|language| language.default_scope());
13294 let classifier = CharClassifier::new(scope).for_completion(true);
13295 let mut last_word = chars
13296 .take_while(|c| classifier.is_word(*c))
13297 .collect::<String>();
13298 last_word = last_word.chars().rev().collect();
13299 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13300 let to_lsp = |point: &text::Anchor| {
13301 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13302 point_to_lsp(end)
13303 };
13304 let lsp_end = to_lsp(&buffer_position);
13305 snippets
13306 .into_iter()
13307 .filter_map(|snippet| {
13308 let matching_prefix = snippet
13309 .prefix
13310 .iter()
13311 .find(|prefix| prefix.starts_with(&last_word))?;
13312 let start = as_offset - last_word.len();
13313 let start = snapshot.anchor_before(start);
13314 let range = start..buffer_position;
13315 let lsp_start = to_lsp(&start);
13316 let lsp_range = lsp::Range {
13317 start: lsp_start,
13318 end: lsp_end,
13319 };
13320 Some(Completion {
13321 old_range: range,
13322 new_text: snippet.body.clone(),
13323 label: CodeLabel {
13324 text: matching_prefix.clone(),
13325 runs: vec![],
13326 filter_range: 0..matching_prefix.len(),
13327 },
13328 server_id: LanguageServerId(usize::MAX),
13329 documentation: snippet.description.clone().map(Documentation::SingleLine),
13330 lsp_completion: lsp::CompletionItem {
13331 label: snippet.prefix.first().unwrap().clone(),
13332 kind: Some(CompletionItemKind::SNIPPET),
13333 label_details: snippet.description.as_ref().map(|description| {
13334 lsp::CompletionItemLabelDetails {
13335 detail: Some(description.clone()),
13336 description: None,
13337 }
13338 }),
13339 insert_text_format: Some(InsertTextFormat::SNIPPET),
13340 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13341 lsp::InsertReplaceEdit {
13342 new_text: snippet.body.clone(),
13343 insert: lsp_range,
13344 replace: lsp_range,
13345 },
13346 )),
13347 filter_text: Some(snippet.body.clone()),
13348 sort_text: Some(char::MAX.to_string()),
13349 ..Default::default()
13350 },
13351 confirm: None,
13352 })
13353 })
13354 .collect()
13355}
13356
13357impl CompletionProvider for Model<Project> {
13358 fn completions(
13359 &self,
13360 buffer: &Model<Buffer>,
13361 buffer_position: text::Anchor,
13362 options: CompletionContext,
13363 cx: &mut ViewContext<Editor>,
13364 ) -> Task<Result<Vec<Completion>>> {
13365 self.update(cx, |project, cx| {
13366 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13367 let project_completions = project.completions(buffer, buffer_position, options, cx);
13368 cx.background_executor().spawn(async move {
13369 let mut completions = project_completions.await?;
13370 //let snippets = snippets.into_iter().;
13371 completions.extend(snippets);
13372 Ok(completions)
13373 })
13374 })
13375 }
13376
13377 fn resolve_completions(
13378 &self,
13379 buffer: Model<Buffer>,
13380 completion_indices: Vec<usize>,
13381 completions: Arc<RwLock<Box<[Completion]>>>,
13382 cx: &mut ViewContext<Editor>,
13383 ) -> Task<Result<bool>> {
13384 self.update(cx, |project, cx| {
13385 project.resolve_completions(buffer, completion_indices, completions, cx)
13386 })
13387 }
13388
13389 fn apply_additional_edits_for_completion(
13390 &self,
13391 buffer: Model<Buffer>,
13392 completion: Completion,
13393 push_to_history: bool,
13394 cx: &mut ViewContext<Editor>,
13395 ) -> Task<Result<Option<language::Transaction>>> {
13396 self.update(cx, |project, cx| {
13397 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13398 })
13399 }
13400
13401 fn is_completion_trigger(
13402 &self,
13403 buffer: &Model<Buffer>,
13404 position: language::Anchor,
13405 text: &str,
13406 trigger_in_words: bool,
13407 cx: &mut ViewContext<Editor>,
13408 ) -> bool {
13409 if !EditorSettings::get_global(cx).show_completions_on_input {
13410 return false;
13411 }
13412
13413 let mut chars = text.chars();
13414 let char = if let Some(char) = chars.next() {
13415 char
13416 } else {
13417 return false;
13418 };
13419 if chars.next().is_some() {
13420 return false;
13421 }
13422
13423 let buffer = buffer.read(cx);
13424 let classifier = buffer
13425 .snapshot()
13426 .char_classifier_at(position)
13427 .for_completion(true);
13428 if trigger_in_words && classifier.is_word(char) {
13429 return true;
13430 }
13431
13432 buffer
13433 .completion_triggers()
13434 .iter()
13435 .any(|string| string == text)
13436 }
13437}
13438
13439impl SemanticsProvider for Model<Project> {
13440 fn hover(
13441 &self,
13442 buffer: &Model<Buffer>,
13443 position: text::Anchor,
13444 cx: &mut AppContext,
13445 ) -> Option<Task<Vec<project::Hover>>> {
13446 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13447 }
13448
13449 fn document_highlights(
13450 &self,
13451 buffer: &Model<Buffer>,
13452 position: text::Anchor,
13453 cx: &mut AppContext,
13454 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13455 Some(self.update(cx, |project, cx| {
13456 project.document_highlights(buffer, position, cx)
13457 }))
13458 }
13459
13460 fn definitions(
13461 &self,
13462 buffer: &Model<Buffer>,
13463 position: text::Anchor,
13464 kind: GotoDefinitionKind,
13465 cx: &mut AppContext,
13466 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13467 Some(self.update(cx, |project, cx| match kind {
13468 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13469 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13470 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13471 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13472 }))
13473 }
13474
13475 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13476 // TODO: make this work for remote projects
13477 self.read(cx)
13478 .language_servers_for_buffer(buffer.read(cx), cx)
13479 .any(
13480 |(_, server)| match server.capabilities().inlay_hint_provider {
13481 Some(lsp::OneOf::Left(enabled)) => enabled,
13482 Some(lsp::OneOf::Right(_)) => true,
13483 None => false,
13484 },
13485 )
13486 }
13487
13488 fn inlay_hints(
13489 &self,
13490 buffer_handle: Model<Buffer>,
13491 range: Range<text::Anchor>,
13492 cx: &mut AppContext,
13493 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13494 Some(self.update(cx, |project, cx| {
13495 project.inlay_hints(buffer_handle, range, cx)
13496 }))
13497 }
13498
13499 fn resolve_inlay_hint(
13500 &self,
13501 hint: InlayHint,
13502 buffer_handle: Model<Buffer>,
13503 server_id: LanguageServerId,
13504 cx: &mut AppContext,
13505 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13506 Some(self.update(cx, |project, cx| {
13507 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13508 }))
13509 }
13510
13511 fn range_for_rename(
13512 &self,
13513 buffer: &Model<Buffer>,
13514 position: text::Anchor,
13515 cx: &mut AppContext,
13516 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13517 Some(self.update(cx, |project, cx| {
13518 project.prepare_rename(buffer.clone(), position, cx)
13519 }))
13520 }
13521
13522 fn perform_rename(
13523 &self,
13524 buffer: &Model<Buffer>,
13525 position: text::Anchor,
13526 new_name: String,
13527 cx: &mut AppContext,
13528 ) -> Option<Task<Result<ProjectTransaction>>> {
13529 Some(self.update(cx, |project, cx| {
13530 project.perform_rename(buffer.clone(), position, new_name, cx)
13531 }))
13532 }
13533}
13534
13535fn inlay_hint_settings(
13536 location: Anchor,
13537 snapshot: &MultiBufferSnapshot,
13538 cx: &mut ViewContext<'_, Editor>,
13539) -> InlayHintSettings {
13540 let file = snapshot.file_at(location);
13541 let language = snapshot.language_at(location).map(|l| l.name());
13542 language_settings(language, file, cx).inlay_hints
13543}
13544
13545fn consume_contiguous_rows(
13546 contiguous_row_selections: &mut Vec<Selection<Point>>,
13547 selection: &Selection<Point>,
13548 display_map: &DisplaySnapshot,
13549 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
13550) -> (MultiBufferRow, MultiBufferRow) {
13551 contiguous_row_selections.push(selection.clone());
13552 let start_row = MultiBufferRow(selection.start.row);
13553 let mut end_row = ending_row(selection, display_map);
13554
13555 while let Some(next_selection) = selections.peek() {
13556 if next_selection.start.row <= end_row.0 {
13557 end_row = ending_row(next_selection, display_map);
13558 contiguous_row_selections.push(selections.next().unwrap().clone());
13559 } else {
13560 break;
13561 }
13562 }
13563 (start_row, end_row)
13564}
13565
13566fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13567 if next_selection.end.column > 0 || next_selection.is_empty() {
13568 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13569 } else {
13570 MultiBufferRow(next_selection.end.row)
13571 }
13572}
13573
13574impl EditorSnapshot {
13575 pub fn remote_selections_in_range<'a>(
13576 &'a self,
13577 range: &'a Range<Anchor>,
13578 collaboration_hub: &dyn CollaborationHub,
13579 cx: &'a AppContext,
13580 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13581 let participant_names = collaboration_hub.user_names(cx);
13582 let participant_indices = collaboration_hub.user_participant_indices(cx);
13583 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13584 let collaborators_by_replica_id = collaborators_by_peer_id
13585 .iter()
13586 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13587 .collect::<HashMap<_, _>>();
13588 self.buffer_snapshot
13589 .selections_in_range(range, false)
13590 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13591 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13592 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13593 let user_name = participant_names.get(&collaborator.user_id).cloned();
13594 Some(RemoteSelection {
13595 replica_id,
13596 selection,
13597 cursor_shape,
13598 line_mode,
13599 participant_index,
13600 peer_id: collaborator.peer_id,
13601 user_name,
13602 })
13603 })
13604 }
13605
13606 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13607 self.display_snapshot.buffer_snapshot.language_at(position)
13608 }
13609
13610 pub fn is_focused(&self) -> bool {
13611 self.is_focused
13612 }
13613
13614 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13615 self.placeholder_text.as_ref()
13616 }
13617
13618 pub fn scroll_position(&self) -> gpui::Point<f32> {
13619 self.scroll_anchor.scroll_position(&self.display_snapshot)
13620 }
13621
13622 fn gutter_dimensions(
13623 &self,
13624 font_id: FontId,
13625 font_size: Pixels,
13626 em_width: Pixels,
13627 em_advance: Pixels,
13628 max_line_number_width: Pixels,
13629 cx: &AppContext,
13630 ) -> GutterDimensions {
13631 if !self.show_gutter {
13632 return GutterDimensions::default();
13633 }
13634 let descent = cx.text_system().descent(font_id, font_size);
13635
13636 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13637 matches!(
13638 ProjectSettings::get_global(cx).git.git_gutter,
13639 Some(GitGutterSetting::TrackedFiles)
13640 )
13641 });
13642 let gutter_settings = EditorSettings::get_global(cx).gutter;
13643 let show_line_numbers = self
13644 .show_line_numbers
13645 .unwrap_or(gutter_settings.line_numbers);
13646 let line_gutter_width = if show_line_numbers {
13647 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13648 let min_width_for_number_on_gutter = em_advance * 4.0;
13649 max_line_number_width.max(min_width_for_number_on_gutter)
13650 } else {
13651 0.0.into()
13652 };
13653
13654 let show_code_actions = self
13655 .show_code_actions
13656 .unwrap_or(gutter_settings.code_actions);
13657
13658 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13659
13660 let git_blame_entries_width =
13661 self.git_blame_gutter_max_author_length
13662 .map(|max_author_length| {
13663 // Length of the author name, but also space for the commit hash,
13664 // the spacing and the timestamp.
13665 let max_char_count = max_author_length
13666 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13667 + 7 // length of commit sha
13668 + 14 // length of max relative timestamp ("60 minutes ago")
13669 + 4; // gaps and margins
13670
13671 em_advance * max_char_count
13672 });
13673
13674 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13675 left_padding += if show_code_actions || show_runnables {
13676 em_width * 3.0
13677 } else if show_git_gutter && show_line_numbers {
13678 em_width * 2.0
13679 } else if show_git_gutter || show_line_numbers {
13680 em_width
13681 } else {
13682 px(0.)
13683 };
13684
13685 let right_padding = if gutter_settings.folds && show_line_numbers {
13686 em_width * 4.0
13687 } else if gutter_settings.folds {
13688 em_width * 3.0
13689 } else if show_line_numbers {
13690 em_width
13691 } else {
13692 px(0.)
13693 };
13694
13695 GutterDimensions {
13696 left_padding,
13697 right_padding,
13698 width: line_gutter_width + left_padding + right_padding,
13699 margin: -descent,
13700 git_blame_entries_width,
13701 }
13702 }
13703
13704 pub fn render_fold_toggle(
13705 &self,
13706 buffer_row: MultiBufferRow,
13707 row_contains_cursor: bool,
13708 editor: View<Editor>,
13709 cx: &mut WindowContext,
13710 ) -> Option<AnyElement> {
13711 let folded = self.is_line_folded(buffer_row);
13712
13713 if let Some(crease) = self
13714 .crease_snapshot
13715 .query_row(buffer_row, &self.buffer_snapshot)
13716 {
13717 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13718 if folded {
13719 editor.update(cx, |editor, cx| {
13720 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13721 });
13722 } else {
13723 editor.update(cx, |editor, cx| {
13724 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13725 });
13726 }
13727 });
13728
13729 Some((crease.render_toggle)(
13730 buffer_row,
13731 folded,
13732 toggle_callback,
13733 cx,
13734 ))
13735 } else if folded
13736 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
13737 {
13738 Some(
13739 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
13740 .selected(folded)
13741 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13742 if folded {
13743 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13744 } else {
13745 this.fold_at(&FoldAt { buffer_row }, cx);
13746 }
13747 }))
13748 .into_any_element(),
13749 )
13750 } else {
13751 None
13752 }
13753 }
13754
13755 pub fn render_crease_trailer(
13756 &self,
13757 buffer_row: MultiBufferRow,
13758 cx: &mut WindowContext,
13759 ) -> Option<AnyElement> {
13760 let folded = self.is_line_folded(buffer_row);
13761 let crease = self
13762 .crease_snapshot
13763 .query_row(buffer_row, &self.buffer_snapshot)?;
13764 Some((crease.render_trailer)(buffer_row, folded, cx))
13765 }
13766}
13767
13768impl Deref for EditorSnapshot {
13769 type Target = DisplaySnapshot;
13770
13771 fn deref(&self) -> &Self::Target {
13772 &self.display_snapshot
13773 }
13774}
13775
13776#[derive(Clone, Debug, PartialEq, Eq)]
13777pub enum EditorEvent {
13778 InputIgnored {
13779 text: Arc<str>,
13780 },
13781 InputHandled {
13782 utf16_range_to_replace: Option<Range<isize>>,
13783 text: Arc<str>,
13784 },
13785 ExcerptsAdded {
13786 buffer: Model<Buffer>,
13787 predecessor: ExcerptId,
13788 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
13789 },
13790 ExcerptsRemoved {
13791 ids: Vec<ExcerptId>,
13792 },
13793 ExcerptsEdited {
13794 ids: Vec<ExcerptId>,
13795 },
13796 ExcerptsExpanded {
13797 ids: Vec<ExcerptId>,
13798 },
13799 BufferEdited,
13800 Edited {
13801 transaction_id: clock::Lamport,
13802 },
13803 Reparsed(BufferId),
13804 Focused,
13805 FocusedIn,
13806 Blurred,
13807 DirtyChanged,
13808 Saved,
13809 TitleChanged,
13810 DiffBaseChanged,
13811 SelectionsChanged {
13812 local: bool,
13813 },
13814 ScrollPositionChanged {
13815 local: bool,
13816 autoscroll: bool,
13817 },
13818 Closed,
13819 TransactionUndone {
13820 transaction_id: clock::Lamport,
13821 },
13822 TransactionBegun {
13823 transaction_id: clock::Lamport,
13824 },
13825 Reloaded,
13826 CursorShapeChanged,
13827}
13828
13829impl EventEmitter<EditorEvent> for Editor {}
13830
13831impl FocusableView for Editor {
13832 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
13833 self.focus_handle.clone()
13834 }
13835}
13836
13837impl Render for Editor {
13838 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
13839 let settings = ThemeSettings::get_global(cx);
13840
13841 let mut text_style = match self.mode {
13842 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
13843 color: cx.theme().colors().editor_foreground,
13844 font_family: settings.ui_font.family.clone(),
13845 font_features: settings.ui_font.features.clone(),
13846 font_fallbacks: settings.ui_font.fallbacks.clone(),
13847 font_size: rems(0.875).into(),
13848 font_weight: settings.ui_font.weight,
13849 line_height: relative(settings.buffer_line_height.value()),
13850 ..Default::default()
13851 },
13852 EditorMode::Full => TextStyle {
13853 color: cx.theme().colors().editor_foreground,
13854 font_family: settings.buffer_font.family.clone(),
13855 font_features: settings.buffer_font.features.clone(),
13856 font_fallbacks: settings.buffer_font.fallbacks.clone(),
13857 font_size: settings.buffer_font_size(cx).into(),
13858 font_weight: settings.buffer_font.weight,
13859 line_height: relative(settings.buffer_line_height.value()),
13860 ..Default::default()
13861 },
13862 };
13863 if let Some(text_style_refinement) = &self.text_style_refinement {
13864 text_style.refine(text_style_refinement)
13865 }
13866
13867 let background = match self.mode {
13868 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
13869 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
13870 EditorMode::Full => cx.theme().colors().editor_background,
13871 };
13872
13873 EditorElement::new(
13874 cx.view(),
13875 EditorStyle {
13876 background,
13877 local_player: cx.theme().players().local(),
13878 text: text_style,
13879 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
13880 syntax: cx.theme().syntax().clone(),
13881 status: cx.theme().status().clone(),
13882 inlay_hints_style: make_inlay_hints_style(cx),
13883 suggestions_style: HighlightStyle {
13884 color: Some(cx.theme().status().predictive),
13885 ..HighlightStyle::default()
13886 },
13887 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
13888 },
13889 )
13890 }
13891}
13892
13893impl ViewInputHandler for Editor {
13894 fn text_for_range(
13895 &mut self,
13896 range_utf16: Range<usize>,
13897 cx: &mut ViewContext<Self>,
13898 ) -> Option<String> {
13899 Some(
13900 self.buffer
13901 .read(cx)
13902 .read(cx)
13903 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
13904 .collect(),
13905 )
13906 }
13907
13908 fn selected_text_range(
13909 &mut self,
13910 ignore_disabled_input: bool,
13911 cx: &mut ViewContext<Self>,
13912 ) -> Option<UTF16Selection> {
13913 // Prevent the IME menu from appearing when holding down an alphabetic key
13914 // while input is disabled.
13915 if !ignore_disabled_input && !self.input_enabled {
13916 return None;
13917 }
13918
13919 let selection = self.selections.newest::<OffsetUtf16>(cx);
13920 let range = selection.range();
13921
13922 Some(UTF16Selection {
13923 range: range.start.0..range.end.0,
13924 reversed: selection.reversed,
13925 })
13926 }
13927
13928 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
13929 let snapshot = self.buffer.read(cx).read(cx);
13930 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
13931 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
13932 }
13933
13934 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
13935 self.clear_highlights::<InputComposition>(cx);
13936 self.ime_transaction.take();
13937 }
13938
13939 fn replace_text_in_range(
13940 &mut self,
13941 range_utf16: Option<Range<usize>>,
13942 text: &str,
13943 cx: &mut ViewContext<Self>,
13944 ) {
13945 if !self.input_enabled {
13946 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13947 return;
13948 }
13949
13950 self.transact(cx, |this, cx| {
13951 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
13952 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13953 Some(this.selection_replacement_ranges(range_utf16, cx))
13954 } else {
13955 this.marked_text_ranges(cx)
13956 };
13957
13958 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
13959 let newest_selection_id = this.selections.newest_anchor().id;
13960 this.selections
13961 .all::<OffsetUtf16>(cx)
13962 .iter()
13963 .zip(ranges_to_replace.iter())
13964 .find_map(|(selection, range)| {
13965 if selection.id == newest_selection_id {
13966 Some(
13967 (range.start.0 as isize - selection.head().0 as isize)
13968 ..(range.end.0 as isize - selection.head().0 as isize),
13969 )
13970 } else {
13971 None
13972 }
13973 })
13974 });
13975
13976 cx.emit(EditorEvent::InputHandled {
13977 utf16_range_to_replace: range_to_replace,
13978 text: text.into(),
13979 });
13980
13981 if let Some(new_selected_ranges) = new_selected_ranges {
13982 this.change_selections(None, cx, |selections| {
13983 selections.select_ranges(new_selected_ranges)
13984 });
13985 this.backspace(&Default::default(), cx);
13986 }
13987
13988 this.handle_input(text, cx);
13989 });
13990
13991 if let Some(transaction) = self.ime_transaction {
13992 self.buffer.update(cx, |buffer, cx| {
13993 buffer.group_until_transaction(transaction, cx);
13994 });
13995 }
13996
13997 self.unmark_text(cx);
13998 }
13999
14000 fn replace_and_mark_text_in_range(
14001 &mut self,
14002 range_utf16: Option<Range<usize>>,
14003 text: &str,
14004 new_selected_range_utf16: Option<Range<usize>>,
14005 cx: &mut ViewContext<Self>,
14006 ) {
14007 if !self.input_enabled {
14008 return;
14009 }
14010
14011 let transaction = self.transact(cx, |this, cx| {
14012 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14013 let snapshot = this.buffer.read(cx).read(cx);
14014 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14015 for marked_range in &mut marked_ranges {
14016 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14017 marked_range.start.0 += relative_range_utf16.start;
14018 marked_range.start =
14019 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14020 marked_range.end =
14021 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14022 }
14023 }
14024 Some(marked_ranges)
14025 } else if let Some(range_utf16) = range_utf16 {
14026 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14027 Some(this.selection_replacement_ranges(range_utf16, cx))
14028 } else {
14029 None
14030 };
14031
14032 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14033 let newest_selection_id = this.selections.newest_anchor().id;
14034 this.selections
14035 .all::<OffsetUtf16>(cx)
14036 .iter()
14037 .zip(ranges_to_replace.iter())
14038 .find_map(|(selection, range)| {
14039 if selection.id == newest_selection_id {
14040 Some(
14041 (range.start.0 as isize - selection.head().0 as isize)
14042 ..(range.end.0 as isize - selection.head().0 as isize),
14043 )
14044 } else {
14045 None
14046 }
14047 })
14048 });
14049
14050 cx.emit(EditorEvent::InputHandled {
14051 utf16_range_to_replace: range_to_replace,
14052 text: text.into(),
14053 });
14054
14055 if let Some(ranges) = ranges_to_replace {
14056 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14057 }
14058
14059 let marked_ranges = {
14060 let snapshot = this.buffer.read(cx).read(cx);
14061 this.selections
14062 .disjoint_anchors()
14063 .iter()
14064 .map(|selection| {
14065 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14066 })
14067 .collect::<Vec<_>>()
14068 };
14069
14070 if text.is_empty() {
14071 this.unmark_text(cx);
14072 } else {
14073 this.highlight_text::<InputComposition>(
14074 marked_ranges.clone(),
14075 HighlightStyle {
14076 underline: Some(UnderlineStyle {
14077 thickness: px(1.),
14078 color: None,
14079 wavy: false,
14080 }),
14081 ..Default::default()
14082 },
14083 cx,
14084 );
14085 }
14086
14087 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14088 let use_autoclose = this.use_autoclose;
14089 let use_auto_surround = this.use_auto_surround;
14090 this.set_use_autoclose(false);
14091 this.set_use_auto_surround(false);
14092 this.handle_input(text, cx);
14093 this.set_use_autoclose(use_autoclose);
14094 this.set_use_auto_surround(use_auto_surround);
14095
14096 if let Some(new_selected_range) = new_selected_range_utf16 {
14097 let snapshot = this.buffer.read(cx).read(cx);
14098 let new_selected_ranges = marked_ranges
14099 .into_iter()
14100 .map(|marked_range| {
14101 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14102 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14103 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14104 snapshot.clip_offset_utf16(new_start, Bias::Left)
14105 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14106 })
14107 .collect::<Vec<_>>();
14108
14109 drop(snapshot);
14110 this.change_selections(None, cx, |selections| {
14111 selections.select_ranges(new_selected_ranges)
14112 });
14113 }
14114 });
14115
14116 self.ime_transaction = self.ime_transaction.or(transaction);
14117 if let Some(transaction) = self.ime_transaction {
14118 self.buffer.update(cx, |buffer, cx| {
14119 buffer.group_until_transaction(transaction, cx);
14120 });
14121 }
14122
14123 if self.text_highlights::<InputComposition>(cx).is_none() {
14124 self.ime_transaction.take();
14125 }
14126 }
14127
14128 fn bounds_for_range(
14129 &mut self,
14130 range_utf16: Range<usize>,
14131 element_bounds: gpui::Bounds<Pixels>,
14132 cx: &mut ViewContext<Self>,
14133 ) -> Option<gpui::Bounds<Pixels>> {
14134 let text_layout_details = self.text_layout_details(cx);
14135 let style = &text_layout_details.editor_style;
14136 let font_id = cx.text_system().resolve_font(&style.text.font());
14137 let font_size = style.text.font_size.to_pixels(cx.rem_size());
14138 let line_height = style.text.line_height_in_pixels(cx.rem_size());
14139
14140 let em_width = cx
14141 .text_system()
14142 .typographic_bounds(font_id, font_size, 'm')
14143 .unwrap()
14144 .size
14145 .width;
14146
14147 let snapshot = self.snapshot(cx);
14148 let scroll_position = snapshot.scroll_position();
14149 let scroll_left = scroll_position.x * em_width;
14150
14151 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14152 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14153 + self.gutter_dimensions.width;
14154 let y = line_height * (start.row().as_f32() - scroll_position.y);
14155
14156 Some(Bounds {
14157 origin: element_bounds.origin + point(x, y),
14158 size: size(em_width, line_height),
14159 })
14160 }
14161}
14162
14163trait SelectionExt {
14164 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14165 fn spanned_rows(
14166 &self,
14167 include_end_if_at_line_start: bool,
14168 map: &DisplaySnapshot,
14169 ) -> Range<MultiBufferRow>;
14170}
14171
14172impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14173 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14174 let start = self
14175 .start
14176 .to_point(&map.buffer_snapshot)
14177 .to_display_point(map);
14178 let end = self
14179 .end
14180 .to_point(&map.buffer_snapshot)
14181 .to_display_point(map);
14182 if self.reversed {
14183 end..start
14184 } else {
14185 start..end
14186 }
14187 }
14188
14189 fn spanned_rows(
14190 &self,
14191 include_end_if_at_line_start: bool,
14192 map: &DisplaySnapshot,
14193 ) -> Range<MultiBufferRow> {
14194 let start = self.start.to_point(&map.buffer_snapshot);
14195 let mut end = self.end.to_point(&map.buffer_snapshot);
14196 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14197 end.row -= 1;
14198 }
14199
14200 let buffer_start = map.prev_line_boundary(start).0;
14201 let buffer_end = map.next_line_boundary(end).0;
14202 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14203 }
14204}
14205
14206impl<T: InvalidationRegion> InvalidationStack<T> {
14207 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14208 where
14209 S: Clone + ToOffset,
14210 {
14211 while let Some(region) = self.last() {
14212 let all_selections_inside_invalidation_ranges =
14213 if selections.len() == region.ranges().len() {
14214 selections
14215 .iter()
14216 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14217 .all(|(selection, invalidation_range)| {
14218 let head = selection.head().to_offset(buffer);
14219 invalidation_range.start <= head && invalidation_range.end >= head
14220 })
14221 } else {
14222 false
14223 };
14224
14225 if all_selections_inside_invalidation_ranges {
14226 break;
14227 } else {
14228 self.pop();
14229 }
14230 }
14231 }
14232}
14233
14234impl<T> Default for InvalidationStack<T> {
14235 fn default() -> Self {
14236 Self(Default::default())
14237 }
14238}
14239
14240impl<T> Deref for InvalidationStack<T> {
14241 type Target = Vec<T>;
14242
14243 fn deref(&self) -> &Self::Target {
14244 &self.0
14245 }
14246}
14247
14248impl<T> DerefMut for InvalidationStack<T> {
14249 fn deref_mut(&mut self) -> &mut Self::Target {
14250 &mut self.0
14251 }
14252}
14253
14254impl InvalidationRegion for SnippetState {
14255 fn ranges(&self) -> &[Range<Anchor>] {
14256 &self.ranges[self.active_index]
14257 }
14258}
14259
14260pub fn diagnostic_block_renderer(
14261 diagnostic: Diagnostic,
14262 max_message_rows: Option<u8>,
14263 allow_closing: bool,
14264 _is_valid: bool,
14265) -> RenderBlock {
14266 let (text_without_backticks, code_ranges) =
14267 highlight_diagnostic_message(&diagnostic, max_message_rows);
14268
14269 Box::new(move |cx: &mut BlockContext| {
14270 let group_id: SharedString = cx.block_id.to_string().into();
14271
14272 let mut text_style = cx.text_style().clone();
14273 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14274 let theme_settings = ThemeSettings::get_global(cx);
14275 text_style.font_family = theme_settings.buffer_font.family.clone();
14276 text_style.font_style = theme_settings.buffer_font.style;
14277 text_style.font_features = theme_settings.buffer_font.features.clone();
14278 text_style.font_weight = theme_settings.buffer_font.weight;
14279
14280 let multi_line_diagnostic = diagnostic.message.contains('\n');
14281
14282 let buttons = |diagnostic: &Diagnostic| {
14283 if multi_line_diagnostic {
14284 v_flex()
14285 } else {
14286 h_flex()
14287 }
14288 .when(allow_closing, |div| {
14289 div.children(diagnostic.is_primary.then(|| {
14290 IconButton::new("close-block", IconName::XCircle)
14291 .icon_color(Color::Muted)
14292 .size(ButtonSize::Compact)
14293 .style(ButtonStyle::Transparent)
14294 .visible_on_hover(group_id.clone())
14295 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14296 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14297 }))
14298 })
14299 .child(
14300 IconButton::new("copy-block", IconName::Copy)
14301 .icon_color(Color::Muted)
14302 .size(ButtonSize::Compact)
14303 .style(ButtonStyle::Transparent)
14304 .visible_on_hover(group_id.clone())
14305 .on_click({
14306 let message = diagnostic.message.clone();
14307 move |_click, cx| {
14308 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14309 }
14310 })
14311 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14312 )
14313 };
14314
14315 let icon_size = buttons(&diagnostic)
14316 .into_any_element()
14317 .layout_as_root(AvailableSpace::min_size(), cx);
14318
14319 h_flex()
14320 .id(cx.block_id)
14321 .group(group_id.clone())
14322 .relative()
14323 .size_full()
14324 .pl(cx.gutter_dimensions.width)
14325 .w(cx.max_width - cx.gutter_dimensions.full_width())
14326 .child(
14327 div()
14328 .flex()
14329 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14330 .flex_shrink(),
14331 )
14332 .child(buttons(&diagnostic))
14333 .child(div().flex().flex_shrink_0().child(
14334 StyledText::new(text_without_backticks.clone()).with_highlights(
14335 &text_style,
14336 code_ranges.iter().map(|range| {
14337 (
14338 range.clone(),
14339 HighlightStyle {
14340 font_weight: Some(FontWeight::BOLD),
14341 ..Default::default()
14342 },
14343 )
14344 }),
14345 ),
14346 ))
14347 .into_any_element()
14348 })
14349}
14350
14351pub fn highlight_diagnostic_message(
14352 diagnostic: &Diagnostic,
14353 mut max_message_rows: Option<u8>,
14354) -> (SharedString, Vec<Range<usize>>) {
14355 let mut text_without_backticks = String::new();
14356 let mut code_ranges = Vec::new();
14357
14358 if let Some(source) = &diagnostic.source {
14359 text_without_backticks.push_str(source);
14360 code_ranges.push(0..source.len());
14361 text_without_backticks.push_str(": ");
14362 }
14363
14364 let mut prev_offset = 0;
14365 let mut in_code_block = false;
14366 let has_row_limit = max_message_rows.is_some();
14367 let mut newline_indices = diagnostic
14368 .message
14369 .match_indices('\n')
14370 .filter(|_| has_row_limit)
14371 .map(|(ix, _)| ix)
14372 .fuse()
14373 .peekable();
14374
14375 for (quote_ix, _) in diagnostic
14376 .message
14377 .match_indices('`')
14378 .chain([(diagnostic.message.len(), "")])
14379 {
14380 let mut first_newline_ix = None;
14381 let mut last_newline_ix = None;
14382 while let Some(newline_ix) = newline_indices.peek() {
14383 if *newline_ix < quote_ix {
14384 if first_newline_ix.is_none() {
14385 first_newline_ix = Some(*newline_ix);
14386 }
14387 last_newline_ix = Some(*newline_ix);
14388
14389 if let Some(rows_left) = &mut max_message_rows {
14390 if *rows_left == 0 {
14391 break;
14392 } else {
14393 *rows_left -= 1;
14394 }
14395 }
14396 let _ = newline_indices.next();
14397 } else {
14398 break;
14399 }
14400 }
14401 let prev_len = text_without_backticks.len();
14402 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14403 text_without_backticks.push_str(new_text);
14404 if in_code_block {
14405 code_ranges.push(prev_len..text_without_backticks.len());
14406 }
14407 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14408 in_code_block = !in_code_block;
14409 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14410 text_without_backticks.push_str("...");
14411 break;
14412 }
14413 }
14414
14415 (text_without_backticks.into(), code_ranges)
14416}
14417
14418fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14419 match severity {
14420 DiagnosticSeverity::ERROR => colors.error,
14421 DiagnosticSeverity::WARNING => colors.warning,
14422 DiagnosticSeverity::INFORMATION => colors.info,
14423 DiagnosticSeverity::HINT => colors.info,
14424 _ => colors.ignored,
14425 }
14426}
14427
14428pub fn styled_runs_for_code_label<'a>(
14429 label: &'a CodeLabel,
14430 syntax_theme: &'a theme::SyntaxTheme,
14431) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14432 let fade_out = HighlightStyle {
14433 fade_out: Some(0.35),
14434 ..Default::default()
14435 };
14436
14437 let mut prev_end = label.filter_range.end;
14438 label
14439 .runs
14440 .iter()
14441 .enumerate()
14442 .flat_map(move |(ix, (range, highlight_id))| {
14443 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14444 style
14445 } else {
14446 return Default::default();
14447 };
14448 let mut muted_style = style;
14449 muted_style.highlight(fade_out);
14450
14451 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14452 if range.start >= label.filter_range.end {
14453 if range.start > prev_end {
14454 runs.push((prev_end..range.start, fade_out));
14455 }
14456 runs.push((range.clone(), muted_style));
14457 } else if range.end <= label.filter_range.end {
14458 runs.push((range.clone(), style));
14459 } else {
14460 runs.push((range.start..label.filter_range.end, style));
14461 runs.push((label.filter_range.end..range.end, muted_style));
14462 }
14463 prev_end = cmp::max(prev_end, range.end);
14464
14465 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14466 runs.push((prev_end..label.text.len(), fade_out));
14467 }
14468
14469 runs
14470 })
14471}
14472
14473pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14474 let mut prev_index = 0;
14475 let mut prev_codepoint: Option<char> = None;
14476 text.char_indices()
14477 .chain([(text.len(), '\0')])
14478 .filter_map(move |(index, codepoint)| {
14479 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14480 let is_boundary = index == text.len()
14481 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14482 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14483 if is_boundary {
14484 let chunk = &text[prev_index..index];
14485 prev_index = index;
14486 Some(chunk)
14487 } else {
14488 None
14489 }
14490 })
14491}
14492
14493pub trait RangeToAnchorExt: Sized {
14494 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14495
14496 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14497 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14498 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14499 }
14500}
14501
14502impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14503 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14504 let start_offset = self.start.to_offset(snapshot);
14505 let end_offset = self.end.to_offset(snapshot);
14506 if start_offset == end_offset {
14507 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14508 } else {
14509 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14510 }
14511 }
14512}
14513
14514pub trait RowExt {
14515 fn as_f32(&self) -> f32;
14516
14517 fn next_row(&self) -> Self;
14518
14519 fn previous_row(&self) -> Self;
14520
14521 fn minus(&self, other: Self) -> u32;
14522}
14523
14524impl RowExt for DisplayRow {
14525 fn as_f32(&self) -> f32 {
14526 self.0 as f32
14527 }
14528
14529 fn next_row(&self) -> Self {
14530 Self(self.0 + 1)
14531 }
14532
14533 fn previous_row(&self) -> Self {
14534 Self(self.0.saturating_sub(1))
14535 }
14536
14537 fn minus(&self, other: Self) -> u32 {
14538 self.0 - other.0
14539 }
14540}
14541
14542impl RowExt for MultiBufferRow {
14543 fn as_f32(&self) -> f32 {
14544 self.0 as f32
14545 }
14546
14547 fn next_row(&self) -> Self {
14548 Self(self.0 + 1)
14549 }
14550
14551 fn previous_row(&self) -> Self {
14552 Self(self.0.saturating_sub(1))
14553 }
14554
14555 fn minus(&self, other: Self) -> u32 {
14556 self.0 - other.0
14557 }
14558}
14559
14560trait RowRangeExt {
14561 type Row;
14562
14563 fn len(&self) -> usize;
14564
14565 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14566}
14567
14568impl RowRangeExt for Range<MultiBufferRow> {
14569 type Row = MultiBufferRow;
14570
14571 fn len(&self) -> usize {
14572 (self.end.0 - self.start.0) as usize
14573 }
14574
14575 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14576 (self.start.0..self.end.0).map(MultiBufferRow)
14577 }
14578}
14579
14580impl RowRangeExt for Range<DisplayRow> {
14581 type Row = DisplayRow;
14582
14583 fn len(&self) -> usize {
14584 (self.end.0 - self.start.0) as usize
14585 }
14586
14587 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14588 (self.start.0..self.end.0).map(DisplayRow)
14589 }
14590}
14591
14592fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14593 if hunk.diff_base_byte_range.is_empty() {
14594 DiffHunkStatus::Added
14595 } else if hunk.row_range.is_empty() {
14596 DiffHunkStatus::Removed
14597 } else {
14598 DiffHunkStatus::Modified
14599 }
14600}
14601
14602/// If select range has more than one line, we
14603/// just point the cursor to range.start.
14604fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14605 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14606 range
14607 } else {
14608 range.start..range.start
14609 }
14610}