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 our fuzzy-finder score first and for the weak
1357 // matches, we prefer language-server sort_text first.
1358 //
1359 // The thinking behind that: we want to show strong matches first in order of relevance(fuzzy score).
1360 // Rest of the matches(weak) can be sorted as language-server expects.
1361
1362 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1363 enum MatchScore<'a> {
1364 Strong {
1365 score: Reverse<OrderedFloat<f64>>,
1366 sort_text: Option<&'a str>,
1367 sort_key: (usize, &'a str),
1368 },
1369 Weak {
1370 sort_text: Option<&'a str>,
1371 score: Reverse<OrderedFloat<f64>>,
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 score,
1384 sort_text,
1385 sort_key,
1386 }
1387 } else {
1388 MatchScore::Weak {
1389 sort_text,
1390 score,
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 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
7012
7013 // Since not all lines in the selection may be at the same indent
7014 // level, choose the indent size that is the most common between all
7015 // of the lines.
7016 //
7017 // If there is a tie, we use the deepest indent.
7018 let (indent_size, indent_end) = {
7019 let mut indent_size_occurrences = HashMap::default();
7020 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7021
7022 for row in start_row..=end_row {
7023 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7024 rows_by_indent_size.entry(indent).or_default().push(row);
7025 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7026 }
7027
7028 let indent_size = indent_size_occurrences
7029 .into_iter()
7030 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
7031 .map(|(indent, _)| indent)
7032 .unwrap_or_default();
7033 let row = rows_by_indent_size[&indent_size][0];
7034 let indent_end = Point::new(row, indent_size.len);
7035
7036 (indent_size, indent_end)
7037 };
7038
7039 let mut line_prefix = indent_size.chars().collect::<String>();
7040
7041 if let Some(comment_prefix) =
7042 buffer
7043 .language_scope_at(selection.head())
7044 .and_then(|language| {
7045 language
7046 .line_comment_prefixes()
7047 .iter()
7048 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7049 .cloned()
7050 })
7051 {
7052 line_prefix.push_str(&comment_prefix);
7053 should_rewrap = true;
7054 }
7055
7056 if !should_rewrap {
7057 continue;
7058 }
7059
7060 if selection.is_empty() {
7061 'expand_upwards: while start_row > 0 {
7062 let prev_row = start_row - 1;
7063 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7064 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7065 {
7066 start_row = prev_row;
7067 } else {
7068 break 'expand_upwards;
7069 }
7070 }
7071
7072 'expand_downwards: while end_row < buffer.max_point().row {
7073 let next_row = end_row + 1;
7074 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7075 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7076 {
7077 end_row = next_row;
7078 } else {
7079 break 'expand_downwards;
7080 }
7081 }
7082 }
7083
7084 let start = Point::new(start_row, 0);
7085 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7086 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7087 let Some(lines_without_prefixes) = selection_text
7088 .lines()
7089 .map(|line| {
7090 line.strip_prefix(&line_prefix)
7091 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7092 .ok_or_else(|| {
7093 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7094 })
7095 })
7096 .collect::<Result<Vec<_>, _>>()
7097 .log_err()
7098 else {
7099 continue;
7100 };
7101
7102 let wrap_column = buffer
7103 .settings_at(Point::new(start_row, 0), cx)
7104 .preferred_line_length as usize;
7105 let wrapped_text = wrap_with_prefix(
7106 line_prefix,
7107 lines_without_prefixes.join(" "),
7108 wrap_column,
7109 tab_size,
7110 );
7111
7112 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
7113 let mut offset = start.to_offset(&buffer);
7114 let mut moved_since_edit = true;
7115
7116 for change in diff.iter_all_changes() {
7117 let value = change.value();
7118 match change.tag() {
7119 ChangeTag::Equal => {
7120 offset += value.len();
7121 moved_since_edit = true;
7122 }
7123 ChangeTag::Delete => {
7124 let start = buffer.anchor_after(offset);
7125 let end = buffer.anchor_before(offset + value.len());
7126
7127 if moved_since_edit {
7128 edits.push((start..end, String::new()));
7129 } else {
7130 edits.last_mut().unwrap().0.end = end;
7131 }
7132
7133 offset += value.len();
7134 moved_since_edit = false;
7135 }
7136 ChangeTag::Insert => {
7137 if moved_since_edit {
7138 let anchor = buffer.anchor_after(offset);
7139 edits.push((anchor..anchor, value.to_string()));
7140 } else {
7141 edits.last_mut().unwrap().1.push_str(value);
7142 }
7143
7144 moved_since_edit = false;
7145 }
7146 }
7147 }
7148
7149 rewrapped_row_ranges.push(start_row..=end_row);
7150 }
7151
7152 self.buffer
7153 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7154 }
7155
7156 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7157 let mut text = String::new();
7158 let buffer = self.buffer.read(cx).snapshot(cx);
7159 let mut selections = self.selections.all::<Point>(cx);
7160 let mut clipboard_selections = Vec::with_capacity(selections.len());
7161 {
7162 let max_point = buffer.max_point();
7163 let mut is_first = true;
7164 for selection in &mut selections {
7165 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7166 if is_entire_line {
7167 selection.start = Point::new(selection.start.row, 0);
7168 if !selection.is_empty() && selection.end.column == 0 {
7169 selection.end = cmp::min(max_point, selection.end);
7170 } else {
7171 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7172 }
7173 selection.goal = SelectionGoal::None;
7174 }
7175 if is_first {
7176 is_first = false;
7177 } else {
7178 text += "\n";
7179 }
7180 let mut len = 0;
7181 for chunk in buffer.text_for_range(selection.start..selection.end) {
7182 text.push_str(chunk);
7183 len += chunk.len();
7184 }
7185 clipboard_selections.push(ClipboardSelection {
7186 len,
7187 is_entire_line,
7188 first_line_indent: buffer
7189 .indent_size_for_line(MultiBufferRow(selection.start.row))
7190 .len,
7191 });
7192 }
7193 }
7194
7195 self.transact(cx, |this, cx| {
7196 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7197 s.select(selections);
7198 });
7199 this.insert("", cx);
7200 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7201 text,
7202 clipboard_selections,
7203 ));
7204 });
7205 }
7206
7207 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7208 let selections = self.selections.all::<Point>(cx);
7209 let buffer = self.buffer.read(cx).read(cx);
7210 let mut text = String::new();
7211
7212 let mut clipboard_selections = Vec::with_capacity(selections.len());
7213 {
7214 let max_point = buffer.max_point();
7215 let mut is_first = true;
7216 for selection in selections.iter() {
7217 let mut start = selection.start;
7218 let mut end = selection.end;
7219 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7220 if is_entire_line {
7221 start = Point::new(start.row, 0);
7222 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7223 }
7224 if is_first {
7225 is_first = false;
7226 } else {
7227 text += "\n";
7228 }
7229 let mut len = 0;
7230 for chunk in buffer.text_for_range(start..end) {
7231 text.push_str(chunk);
7232 len += chunk.len();
7233 }
7234 clipboard_selections.push(ClipboardSelection {
7235 len,
7236 is_entire_line,
7237 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7238 });
7239 }
7240 }
7241
7242 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7243 text,
7244 clipboard_selections,
7245 ));
7246 }
7247
7248 pub fn do_paste(
7249 &mut self,
7250 text: &String,
7251 clipboard_selections: Option<Vec<ClipboardSelection>>,
7252 handle_entire_lines: bool,
7253 cx: &mut ViewContext<Self>,
7254 ) {
7255 if self.read_only(cx) {
7256 return;
7257 }
7258
7259 let clipboard_text = Cow::Borrowed(text);
7260
7261 self.transact(cx, |this, cx| {
7262 if let Some(mut clipboard_selections) = clipboard_selections {
7263 let old_selections = this.selections.all::<usize>(cx);
7264 let all_selections_were_entire_line =
7265 clipboard_selections.iter().all(|s| s.is_entire_line);
7266 let first_selection_indent_column =
7267 clipboard_selections.first().map(|s| s.first_line_indent);
7268 if clipboard_selections.len() != old_selections.len() {
7269 clipboard_selections.drain(..);
7270 }
7271 let cursor_offset = this.selections.last::<usize>(cx).head();
7272 let mut auto_indent_on_paste = true;
7273
7274 this.buffer.update(cx, |buffer, cx| {
7275 let snapshot = buffer.read(cx);
7276 auto_indent_on_paste =
7277 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7278
7279 let mut start_offset = 0;
7280 let mut edits = Vec::new();
7281 let mut original_indent_columns = Vec::new();
7282 for (ix, selection) in old_selections.iter().enumerate() {
7283 let to_insert;
7284 let entire_line;
7285 let original_indent_column;
7286 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7287 let end_offset = start_offset + clipboard_selection.len;
7288 to_insert = &clipboard_text[start_offset..end_offset];
7289 entire_line = clipboard_selection.is_entire_line;
7290 start_offset = end_offset + 1;
7291 original_indent_column = Some(clipboard_selection.first_line_indent);
7292 } else {
7293 to_insert = clipboard_text.as_str();
7294 entire_line = all_selections_were_entire_line;
7295 original_indent_column = first_selection_indent_column
7296 }
7297
7298 // If the corresponding selection was empty when this slice of the
7299 // clipboard text was written, then the entire line containing the
7300 // selection was copied. If this selection is also currently empty,
7301 // then paste the line before the current line of the buffer.
7302 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7303 let column = selection.start.to_point(&snapshot).column as usize;
7304 let line_start = selection.start - column;
7305 line_start..line_start
7306 } else {
7307 selection.range()
7308 };
7309
7310 edits.push((range, to_insert));
7311 original_indent_columns.extend(original_indent_column);
7312 }
7313 drop(snapshot);
7314
7315 buffer.edit(
7316 edits,
7317 if auto_indent_on_paste {
7318 Some(AutoindentMode::Block {
7319 original_indent_columns,
7320 })
7321 } else {
7322 None
7323 },
7324 cx,
7325 );
7326 });
7327
7328 let selections = this.selections.all::<usize>(cx);
7329 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7330 } else {
7331 this.insert(&clipboard_text, cx);
7332 }
7333 });
7334 }
7335
7336 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7337 if let Some(item) = cx.read_from_clipboard() {
7338 let entries = item.entries();
7339
7340 match entries.first() {
7341 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7342 // of all the pasted entries.
7343 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7344 .do_paste(
7345 clipboard_string.text(),
7346 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7347 true,
7348 cx,
7349 ),
7350 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7351 }
7352 }
7353 }
7354
7355 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7356 if self.read_only(cx) {
7357 return;
7358 }
7359
7360 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7361 if let Some((selections, _)) =
7362 self.selection_history.transaction(transaction_id).cloned()
7363 {
7364 self.change_selections(None, cx, |s| {
7365 s.select_anchors(selections.to_vec());
7366 });
7367 }
7368 self.request_autoscroll(Autoscroll::fit(), cx);
7369 self.unmark_text(cx);
7370 self.refresh_inline_completion(true, false, cx);
7371 cx.emit(EditorEvent::Edited { transaction_id });
7372 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7373 }
7374 }
7375
7376 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7377 if self.read_only(cx) {
7378 return;
7379 }
7380
7381 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7382 if let Some((_, Some(selections))) =
7383 self.selection_history.transaction(transaction_id).cloned()
7384 {
7385 self.change_selections(None, cx, |s| {
7386 s.select_anchors(selections.to_vec());
7387 });
7388 }
7389 self.request_autoscroll(Autoscroll::fit(), cx);
7390 self.unmark_text(cx);
7391 self.refresh_inline_completion(true, false, cx);
7392 cx.emit(EditorEvent::Edited { transaction_id });
7393 }
7394 }
7395
7396 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7397 self.buffer
7398 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7399 }
7400
7401 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7402 self.buffer
7403 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7404 }
7405
7406 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7407 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7408 let line_mode = s.line_mode;
7409 s.move_with(|map, selection| {
7410 let cursor = if selection.is_empty() && !line_mode {
7411 movement::left(map, selection.start)
7412 } else {
7413 selection.start
7414 };
7415 selection.collapse_to(cursor, SelectionGoal::None);
7416 });
7417 })
7418 }
7419
7420 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7421 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7422 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7423 })
7424 }
7425
7426 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7427 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7428 let line_mode = s.line_mode;
7429 s.move_with(|map, selection| {
7430 let cursor = if selection.is_empty() && !line_mode {
7431 movement::right(map, selection.end)
7432 } else {
7433 selection.end
7434 };
7435 selection.collapse_to(cursor, SelectionGoal::None)
7436 });
7437 })
7438 }
7439
7440 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7441 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7442 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7443 })
7444 }
7445
7446 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7447 if self.take_rename(true, cx).is_some() {
7448 return;
7449 }
7450
7451 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7452 cx.propagate();
7453 return;
7454 }
7455
7456 let text_layout_details = &self.text_layout_details(cx);
7457 let selection_count = self.selections.count();
7458 let first_selection = self.selections.first_anchor();
7459
7460 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7461 let line_mode = s.line_mode;
7462 s.move_with(|map, selection| {
7463 if !selection.is_empty() && !line_mode {
7464 selection.goal = SelectionGoal::None;
7465 }
7466 let (cursor, goal) = movement::up(
7467 map,
7468 selection.start,
7469 selection.goal,
7470 false,
7471 text_layout_details,
7472 );
7473 selection.collapse_to(cursor, goal);
7474 });
7475 });
7476
7477 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7478 {
7479 cx.propagate();
7480 }
7481 }
7482
7483 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7484 if self.take_rename(true, cx).is_some() {
7485 return;
7486 }
7487
7488 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7489 cx.propagate();
7490 return;
7491 }
7492
7493 let text_layout_details = &self.text_layout_details(cx);
7494
7495 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7496 let line_mode = s.line_mode;
7497 s.move_with(|map, selection| {
7498 if !selection.is_empty() && !line_mode {
7499 selection.goal = SelectionGoal::None;
7500 }
7501 let (cursor, goal) = movement::up_by_rows(
7502 map,
7503 selection.start,
7504 action.lines,
7505 selection.goal,
7506 false,
7507 text_layout_details,
7508 );
7509 selection.collapse_to(cursor, goal);
7510 });
7511 })
7512 }
7513
7514 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7515 if self.take_rename(true, cx).is_some() {
7516 return;
7517 }
7518
7519 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7520 cx.propagate();
7521 return;
7522 }
7523
7524 let text_layout_details = &self.text_layout_details(cx);
7525
7526 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7527 let line_mode = s.line_mode;
7528 s.move_with(|map, selection| {
7529 if !selection.is_empty() && !line_mode {
7530 selection.goal = SelectionGoal::None;
7531 }
7532 let (cursor, goal) = movement::down_by_rows(
7533 map,
7534 selection.start,
7535 action.lines,
7536 selection.goal,
7537 false,
7538 text_layout_details,
7539 );
7540 selection.collapse_to(cursor, goal);
7541 });
7542 })
7543 }
7544
7545 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7546 let text_layout_details = &self.text_layout_details(cx);
7547 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7548 s.move_heads_with(|map, head, goal| {
7549 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7550 })
7551 })
7552 }
7553
7554 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7555 let text_layout_details = &self.text_layout_details(cx);
7556 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7557 s.move_heads_with(|map, head, goal| {
7558 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7559 })
7560 })
7561 }
7562
7563 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7564 let Some(row_count) = self.visible_row_count() else {
7565 return;
7566 };
7567
7568 let text_layout_details = &self.text_layout_details(cx);
7569
7570 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7571 s.move_heads_with(|map, head, goal| {
7572 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7573 })
7574 })
7575 }
7576
7577 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7578 if self.take_rename(true, cx).is_some() {
7579 return;
7580 }
7581
7582 if self
7583 .context_menu
7584 .write()
7585 .as_mut()
7586 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7587 .unwrap_or(false)
7588 {
7589 return;
7590 }
7591
7592 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7593 cx.propagate();
7594 return;
7595 }
7596
7597 let Some(row_count) = self.visible_row_count() else {
7598 return;
7599 };
7600
7601 let autoscroll = if action.center_cursor {
7602 Autoscroll::center()
7603 } else {
7604 Autoscroll::fit()
7605 };
7606
7607 let text_layout_details = &self.text_layout_details(cx);
7608
7609 self.change_selections(Some(autoscroll), cx, |s| {
7610 let line_mode = s.line_mode;
7611 s.move_with(|map, selection| {
7612 if !selection.is_empty() && !line_mode {
7613 selection.goal = SelectionGoal::None;
7614 }
7615 let (cursor, goal) = movement::up_by_rows(
7616 map,
7617 selection.end,
7618 row_count,
7619 selection.goal,
7620 false,
7621 text_layout_details,
7622 );
7623 selection.collapse_to(cursor, goal);
7624 });
7625 });
7626 }
7627
7628 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7629 let text_layout_details = &self.text_layout_details(cx);
7630 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7631 s.move_heads_with(|map, head, goal| {
7632 movement::up(map, head, goal, false, text_layout_details)
7633 })
7634 })
7635 }
7636
7637 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7638 self.take_rename(true, cx);
7639
7640 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7641 cx.propagate();
7642 return;
7643 }
7644
7645 let text_layout_details = &self.text_layout_details(cx);
7646 let selection_count = self.selections.count();
7647 let first_selection = self.selections.first_anchor();
7648
7649 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7650 let line_mode = s.line_mode;
7651 s.move_with(|map, selection| {
7652 if !selection.is_empty() && !line_mode {
7653 selection.goal = SelectionGoal::None;
7654 }
7655 let (cursor, goal) = movement::down(
7656 map,
7657 selection.end,
7658 selection.goal,
7659 false,
7660 text_layout_details,
7661 );
7662 selection.collapse_to(cursor, goal);
7663 });
7664 });
7665
7666 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7667 {
7668 cx.propagate();
7669 }
7670 }
7671
7672 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7673 let Some(row_count) = self.visible_row_count() else {
7674 return;
7675 };
7676
7677 let text_layout_details = &self.text_layout_details(cx);
7678
7679 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7680 s.move_heads_with(|map, head, goal| {
7681 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7682 })
7683 })
7684 }
7685
7686 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7687 if self.take_rename(true, cx).is_some() {
7688 return;
7689 }
7690
7691 if self
7692 .context_menu
7693 .write()
7694 .as_mut()
7695 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7696 .unwrap_or(false)
7697 {
7698 return;
7699 }
7700
7701 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7702 cx.propagate();
7703 return;
7704 }
7705
7706 let Some(row_count) = self.visible_row_count() else {
7707 return;
7708 };
7709
7710 let autoscroll = if action.center_cursor {
7711 Autoscroll::center()
7712 } else {
7713 Autoscroll::fit()
7714 };
7715
7716 let text_layout_details = &self.text_layout_details(cx);
7717 self.change_selections(Some(autoscroll), cx, |s| {
7718 let line_mode = s.line_mode;
7719 s.move_with(|map, selection| {
7720 if !selection.is_empty() && !line_mode {
7721 selection.goal = SelectionGoal::None;
7722 }
7723 let (cursor, goal) = movement::down_by_rows(
7724 map,
7725 selection.end,
7726 row_count,
7727 selection.goal,
7728 false,
7729 text_layout_details,
7730 );
7731 selection.collapse_to(cursor, goal);
7732 });
7733 });
7734 }
7735
7736 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7737 let text_layout_details = &self.text_layout_details(cx);
7738 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7739 s.move_heads_with(|map, head, goal| {
7740 movement::down(map, head, goal, false, text_layout_details)
7741 })
7742 });
7743 }
7744
7745 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7746 if let Some(context_menu) = self.context_menu.write().as_mut() {
7747 context_menu.select_first(self.completion_provider.as_deref(), cx);
7748 }
7749 }
7750
7751 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7752 if let Some(context_menu) = self.context_menu.write().as_mut() {
7753 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7754 }
7755 }
7756
7757 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7758 if let Some(context_menu) = self.context_menu.write().as_mut() {
7759 context_menu.select_next(self.completion_provider.as_deref(), cx);
7760 }
7761 }
7762
7763 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7764 if let Some(context_menu) = self.context_menu.write().as_mut() {
7765 context_menu.select_last(self.completion_provider.as_deref(), cx);
7766 }
7767 }
7768
7769 pub fn move_to_previous_word_start(
7770 &mut self,
7771 _: &MoveToPreviousWordStart,
7772 cx: &mut ViewContext<Self>,
7773 ) {
7774 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7775 s.move_cursors_with(|map, head, _| {
7776 (
7777 movement::previous_word_start(map, head),
7778 SelectionGoal::None,
7779 )
7780 });
7781 })
7782 }
7783
7784 pub fn move_to_previous_subword_start(
7785 &mut self,
7786 _: &MoveToPreviousSubwordStart,
7787 cx: &mut ViewContext<Self>,
7788 ) {
7789 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7790 s.move_cursors_with(|map, head, _| {
7791 (
7792 movement::previous_subword_start(map, head),
7793 SelectionGoal::None,
7794 )
7795 });
7796 })
7797 }
7798
7799 pub fn select_to_previous_word_start(
7800 &mut self,
7801 _: &SelectToPreviousWordStart,
7802 cx: &mut ViewContext<Self>,
7803 ) {
7804 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7805 s.move_heads_with(|map, head, _| {
7806 (
7807 movement::previous_word_start(map, head),
7808 SelectionGoal::None,
7809 )
7810 });
7811 })
7812 }
7813
7814 pub fn select_to_previous_subword_start(
7815 &mut self,
7816 _: &SelectToPreviousSubwordStart,
7817 cx: &mut ViewContext<Self>,
7818 ) {
7819 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7820 s.move_heads_with(|map, head, _| {
7821 (
7822 movement::previous_subword_start(map, head),
7823 SelectionGoal::None,
7824 )
7825 });
7826 })
7827 }
7828
7829 pub fn delete_to_previous_word_start(
7830 &mut self,
7831 action: &DeleteToPreviousWordStart,
7832 cx: &mut ViewContext<Self>,
7833 ) {
7834 self.transact(cx, |this, cx| {
7835 this.select_autoclose_pair(cx);
7836 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7837 let line_mode = s.line_mode;
7838 s.move_with(|map, selection| {
7839 if selection.is_empty() && !line_mode {
7840 let cursor = if action.ignore_newlines {
7841 movement::previous_word_start(map, selection.head())
7842 } else {
7843 movement::previous_word_start_or_newline(map, selection.head())
7844 };
7845 selection.set_head(cursor, SelectionGoal::None);
7846 }
7847 });
7848 });
7849 this.insert("", cx);
7850 });
7851 }
7852
7853 pub fn delete_to_previous_subword_start(
7854 &mut self,
7855 _: &DeleteToPreviousSubwordStart,
7856 cx: &mut ViewContext<Self>,
7857 ) {
7858 self.transact(cx, |this, cx| {
7859 this.select_autoclose_pair(cx);
7860 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7861 let line_mode = s.line_mode;
7862 s.move_with(|map, selection| {
7863 if selection.is_empty() && !line_mode {
7864 let cursor = movement::previous_subword_start(map, selection.head());
7865 selection.set_head(cursor, SelectionGoal::None);
7866 }
7867 });
7868 });
7869 this.insert("", cx);
7870 });
7871 }
7872
7873 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7874 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7875 s.move_cursors_with(|map, head, _| {
7876 (movement::next_word_end(map, head), SelectionGoal::None)
7877 });
7878 })
7879 }
7880
7881 pub fn move_to_next_subword_end(
7882 &mut self,
7883 _: &MoveToNextSubwordEnd,
7884 cx: &mut ViewContext<Self>,
7885 ) {
7886 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7887 s.move_cursors_with(|map, head, _| {
7888 (movement::next_subword_end(map, head), SelectionGoal::None)
7889 });
7890 })
7891 }
7892
7893 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7894 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7895 s.move_heads_with(|map, head, _| {
7896 (movement::next_word_end(map, head), SelectionGoal::None)
7897 });
7898 })
7899 }
7900
7901 pub fn select_to_next_subword_end(
7902 &mut self,
7903 _: &SelectToNextSubwordEnd,
7904 cx: &mut ViewContext<Self>,
7905 ) {
7906 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7907 s.move_heads_with(|map, head, _| {
7908 (movement::next_subword_end(map, head), SelectionGoal::None)
7909 });
7910 })
7911 }
7912
7913 pub fn delete_to_next_word_end(
7914 &mut self,
7915 action: &DeleteToNextWordEnd,
7916 cx: &mut ViewContext<Self>,
7917 ) {
7918 self.transact(cx, |this, cx| {
7919 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7920 let line_mode = s.line_mode;
7921 s.move_with(|map, selection| {
7922 if selection.is_empty() && !line_mode {
7923 let cursor = if action.ignore_newlines {
7924 movement::next_word_end(map, selection.head())
7925 } else {
7926 movement::next_word_end_or_newline(map, selection.head())
7927 };
7928 selection.set_head(cursor, SelectionGoal::None);
7929 }
7930 });
7931 });
7932 this.insert("", cx);
7933 });
7934 }
7935
7936 pub fn delete_to_next_subword_end(
7937 &mut self,
7938 _: &DeleteToNextSubwordEnd,
7939 cx: &mut ViewContext<Self>,
7940 ) {
7941 self.transact(cx, |this, cx| {
7942 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7943 s.move_with(|map, selection| {
7944 if selection.is_empty() {
7945 let cursor = movement::next_subword_end(map, selection.head());
7946 selection.set_head(cursor, SelectionGoal::None);
7947 }
7948 });
7949 });
7950 this.insert("", cx);
7951 });
7952 }
7953
7954 pub fn move_to_beginning_of_line(
7955 &mut self,
7956 action: &MoveToBeginningOfLine,
7957 cx: &mut ViewContext<Self>,
7958 ) {
7959 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7960 s.move_cursors_with(|map, head, _| {
7961 (
7962 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7963 SelectionGoal::None,
7964 )
7965 });
7966 })
7967 }
7968
7969 pub fn select_to_beginning_of_line(
7970 &mut self,
7971 action: &SelectToBeginningOfLine,
7972 cx: &mut ViewContext<Self>,
7973 ) {
7974 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7975 s.move_heads_with(|map, head, _| {
7976 (
7977 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7978 SelectionGoal::None,
7979 )
7980 });
7981 });
7982 }
7983
7984 pub fn delete_to_beginning_of_line(
7985 &mut self,
7986 _: &DeleteToBeginningOfLine,
7987 cx: &mut ViewContext<Self>,
7988 ) {
7989 self.transact(cx, |this, cx| {
7990 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7991 s.move_with(|_, selection| {
7992 selection.reversed = true;
7993 });
7994 });
7995
7996 this.select_to_beginning_of_line(
7997 &SelectToBeginningOfLine {
7998 stop_at_soft_wraps: false,
7999 },
8000 cx,
8001 );
8002 this.backspace(&Backspace, cx);
8003 });
8004 }
8005
8006 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
8007 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8008 s.move_cursors_with(|map, head, _| {
8009 (
8010 movement::line_end(map, head, action.stop_at_soft_wraps),
8011 SelectionGoal::None,
8012 )
8013 });
8014 })
8015 }
8016
8017 pub fn select_to_end_of_line(
8018 &mut self,
8019 action: &SelectToEndOfLine,
8020 cx: &mut ViewContext<Self>,
8021 ) {
8022 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8023 s.move_heads_with(|map, head, _| {
8024 (
8025 movement::line_end(map, head, action.stop_at_soft_wraps),
8026 SelectionGoal::None,
8027 )
8028 });
8029 })
8030 }
8031
8032 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
8033 self.transact(cx, |this, cx| {
8034 this.select_to_end_of_line(
8035 &SelectToEndOfLine {
8036 stop_at_soft_wraps: false,
8037 },
8038 cx,
8039 );
8040 this.delete(&Delete, cx);
8041 });
8042 }
8043
8044 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
8045 self.transact(cx, |this, cx| {
8046 this.select_to_end_of_line(
8047 &SelectToEndOfLine {
8048 stop_at_soft_wraps: false,
8049 },
8050 cx,
8051 );
8052 this.cut(&Cut, cx);
8053 });
8054 }
8055
8056 pub fn move_to_start_of_paragraph(
8057 &mut self,
8058 _: &MoveToStartOfParagraph,
8059 cx: &mut ViewContext<Self>,
8060 ) {
8061 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8062 cx.propagate();
8063 return;
8064 }
8065
8066 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8067 s.move_with(|map, selection| {
8068 selection.collapse_to(
8069 movement::start_of_paragraph(map, selection.head(), 1),
8070 SelectionGoal::None,
8071 )
8072 });
8073 })
8074 }
8075
8076 pub fn move_to_end_of_paragraph(
8077 &mut self,
8078 _: &MoveToEndOfParagraph,
8079 cx: &mut ViewContext<Self>,
8080 ) {
8081 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8082 cx.propagate();
8083 return;
8084 }
8085
8086 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8087 s.move_with(|map, selection| {
8088 selection.collapse_to(
8089 movement::end_of_paragraph(map, selection.head(), 1),
8090 SelectionGoal::None,
8091 )
8092 });
8093 })
8094 }
8095
8096 pub fn select_to_start_of_paragraph(
8097 &mut self,
8098 _: &SelectToStartOfParagraph,
8099 cx: &mut ViewContext<Self>,
8100 ) {
8101 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8102 cx.propagate();
8103 return;
8104 }
8105
8106 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8107 s.move_heads_with(|map, head, _| {
8108 (
8109 movement::start_of_paragraph(map, head, 1),
8110 SelectionGoal::None,
8111 )
8112 });
8113 })
8114 }
8115
8116 pub fn select_to_end_of_paragraph(
8117 &mut self,
8118 _: &SelectToEndOfParagraph,
8119 cx: &mut ViewContext<Self>,
8120 ) {
8121 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8122 cx.propagate();
8123 return;
8124 }
8125
8126 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8127 s.move_heads_with(|map, head, _| {
8128 (
8129 movement::end_of_paragraph(map, head, 1),
8130 SelectionGoal::None,
8131 )
8132 });
8133 })
8134 }
8135
8136 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8137 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8138 cx.propagate();
8139 return;
8140 }
8141
8142 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8143 s.select_ranges(vec![0..0]);
8144 });
8145 }
8146
8147 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8148 let mut selection = self.selections.last::<Point>(cx);
8149 selection.set_head(Point::zero(), SelectionGoal::None);
8150
8151 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8152 s.select(vec![selection]);
8153 });
8154 }
8155
8156 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8157 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8158 cx.propagate();
8159 return;
8160 }
8161
8162 let cursor = self.buffer.read(cx).read(cx).len();
8163 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8164 s.select_ranges(vec![cursor..cursor])
8165 });
8166 }
8167
8168 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8169 self.nav_history = nav_history;
8170 }
8171
8172 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8173 self.nav_history.as_ref()
8174 }
8175
8176 fn push_to_nav_history(
8177 &mut self,
8178 cursor_anchor: Anchor,
8179 new_position: Option<Point>,
8180 cx: &mut ViewContext<Self>,
8181 ) {
8182 if let Some(nav_history) = self.nav_history.as_mut() {
8183 let buffer = self.buffer.read(cx).read(cx);
8184 let cursor_position = cursor_anchor.to_point(&buffer);
8185 let scroll_state = self.scroll_manager.anchor();
8186 let scroll_top_row = scroll_state.top_row(&buffer);
8187 drop(buffer);
8188
8189 if let Some(new_position) = new_position {
8190 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8191 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8192 return;
8193 }
8194 }
8195
8196 nav_history.push(
8197 Some(NavigationData {
8198 cursor_anchor,
8199 cursor_position,
8200 scroll_anchor: scroll_state,
8201 scroll_top_row,
8202 }),
8203 cx,
8204 );
8205 }
8206 }
8207
8208 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8209 let buffer = self.buffer.read(cx).snapshot(cx);
8210 let mut selection = self.selections.first::<usize>(cx);
8211 selection.set_head(buffer.len(), SelectionGoal::None);
8212 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8213 s.select(vec![selection]);
8214 });
8215 }
8216
8217 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8218 let end = self.buffer.read(cx).read(cx).len();
8219 self.change_selections(None, cx, |s| {
8220 s.select_ranges(vec![0..end]);
8221 });
8222 }
8223
8224 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8225 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8226 let mut selections = self.selections.all::<Point>(cx);
8227 let max_point = display_map.buffer_snapshot.max_point();
8228 for selection in &mut selections {
8229 let rows = selection.spanned_rows(true, &display_map);
8230 selection.start = Point::new(rows.start.0, 0);
8231 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8232 selection.reversed = false;
8233 }
8234 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8235 s.select(selections);
8236 });
8237 }
8238
8239 pub fn split_selection_into_lines(
8240 &mut self,
8241 _: &SplitSelectionIntoLines,
8242 cx: &mut ViewContext<Self>,
8243 ) {
8244 let mut to_unfold = Vec::new();
8245 let mut new_selection_ranges = Vec::new();
8246 {
8247 let selections = self.selections.all::<Point>(cx);
8248 let buffer = self.buffer.read(cx).read(cx);
8249 for selection in selections {
8250 for row in selection.start.row..selection.end.row {
8251 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8252 new_selection_ranges.push(cursor..cursor);
8253 }
8254 new_selection_ranges.push(selection.end..selection.end);
8255 to_unfold.push(selection.start..selection.end);
8256 }
8257 }
8258 self.unfold_ranges(to_unfold, true, true, cx);
8259 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8260 s.select_ranges(new_selection_ranges);
8261 });
8262 }
8263
8264 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8265 self.add_selection(true, cx);
8266 }
8267
8268 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8269 self.add_selection(false, cx);
8270 }
8271
8272 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8273 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8274 let mut selections = self.selections.all::<Point>(cx);
8275 let text_layout_details = self.text_layout_details(cx);
8276 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8277 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8278 let range = oldest_selection.display_range(&display_map).sorted();
8279
8280 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8281 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8282 let positions = start_x.min(end_x)..start_x.max(end_x);
8283
8284 selections.clear();
8285 let mut stack = Vec::new();
8286 for row in range.start.row().0..=range.end.row().0 {
8287 if let Some(selection) = self.selections.build_columnar_selection(
8288 &display_map,
8289 DisplayRow(row),
8290 &positions,
8291 oldest_selection.reversed,
8292 &text_layout_details,
8293 ) {
8294 stack.push(selection.id);
8295 selections.push(selection);
8296 }
8297 }
8298
8299 if above {
8300 stack.reverse();
8301 }
8302
8303 AddSelectionsState { above, stack }
8304 });
8305
8306 let last_added_selection = *state.stack.last().unwrap();
8307 let mut new_selections = Vec::new();
8308 if above == state.above {
8309 let end_row = if above {
8310 DisplayRow(0)
8311 } else {
8312 display_map.max_point().row()
8313 };
8314
8315 'outer: for selection in selections {
8316 if selection.id == last_added_selection {
8317 let range = selection.display_range(&display_map).sorted();
8318 debug_assert_eq!(range.start.row(), range.end.row());
8319 let mut row = range.start.row();
8320 let positions =
8321 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8322 px(start)..px(end)
8323 } else {
8324 let start_x =
8325 display_map.x_for_display_point(range.start, &text_layout_details);
8326 let end_x =
8327 display_map.x_for_display_point(range.end, &text_layout_details);
8328 start_x.min(end_x)..start_x.max(end_x)
8329 };
8330
8331 while row != end_row {
8332 if above {
8333 row.0 -= 1;
8334 } else {
8335 row.0 += 1;
8336 }
8337
8338 if let Some(new_selection) = self.selections.build_columnar_selection(
8339 &display_map,
8340 row,
8341 &positions,
8342 selection.reversed,
8343 &text_layout_details,
8344 ) {
8345 state.stack.push(new_selection.id);
8346 if above {
8347 new_selections.push(new_selection);
8348 new_selections.push(selection);
8349 } else {
8350 new_selections.push(selection);
8351 new_selections.push(new_selection);
8352 }
8353
8354 continue 'outer;
8355 }
8356 }
8357 }
8358
8359 new_selections.push(selection);
8360 }
8361 } else {
8362 new_selections = selections;
8363 new_selections.retain(|s| s.id != last_added_selection);
8364 state.stack.pop();
8365 }
8366
8367 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8368 s.select(new_selections);
8369 });
8370 if state.stack.len() > 1 {
8371 self.add_selections_state = Some(state);
8372 }
8373 }
8374
8375 pub fn select_next_match_internal(
8376 &mut self,
8377 display_map: &DisplaySnapshot,
8378 replace_newest: bool,
8379 autoscroll: Option<Autoscroll>,
8380 cx: &mut ViewContext<Self>,
8381 ) -> Result<()> {
8382 fn select_next_match_ranges(
8383 this: &mut Editor,
8384 range: Range<usize>,
8385 replace_newest: bool,
8386 auto_scroll: Option<Autoscroll>,
8387 cx: &mut ViewContext<Editor>,
8388 ) {
8389 this.unfold_ranges([range.clone()], false, true, cx);
8390 this.change_selections(auto_scroll, cx, |s| {
8391 if replace_newest {
8392 s.delete(s.newest_anchor().id);
8393 }
8394 s.insert_range(range.clone());
8395 });
8396 }
8397
8398 let buffer = &display_map.buffer_snapshot;
8399 let mut selections = self.selections.all::<usize>(cx);
8400 if let Some(mut select_next_state) = self.select_next_state.take() {
8401 let query = &select_next_state.query;
8402 if !select_next_state.done {
8403 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8404 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8405 let mut next_selected_range = None;
8406
8407 let bytes_after_last_selection =
8408 buffer.bytes_in_range(last_selection.end..buffer.len());
8409 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8410 let query_matches = query
8411 .stream_find_iter(bytes_after_last_selection)
8412 .map(|result| (last_selection.end, result))
8413 .chain(
8414 query
8415 .stream_find_iter(bytes_before_first_selection)
8416 .map(|result| (0, result)),
8417 );
8418
8419 for (start_offset, query_match) in query_matches {
8420 let query_match = query_match.unwrap(); // can only fail due to I/O
8421 let offset_range =
8422 start_offset + query_match.start()..start_offset + query_match.end();
8423 let display_range = offset_range.start.to_display_point(display_map)
8424 ..offset_range.end.to_display_point(display_map);
8425
8426 if !select_next_state.wordwise
8427 || (!movement::is_inside_word(display_map, display_range.start)
8428 && !movement::is_inside_word(display_map, display_range.end))
8429 {
8430 // TODO: This is n^2, because we might check all the selections
8431 if !selections
8432 .iter()
8433 .any(|selection| selection.range().overlaps(&offset_range))
8434 {
8435 next_selected_range = Some(offset_range);
8436 break;
8437 }
8438 }
8439 }
8440
8441 if let Some(next_selected_range) = next_selected_range {
8442 select_next_match_ranges(
8443 self,
8444 next_selected_range,
8445 replace_newest,
8446 autoscroll,
8447 cx,
8448 );
8449 } else {
8450 select_next_state.done = true;
8451 }
8452 }
8453
8454 self.select_next_state = Some(select_next_state);
8455 } else {
8456 let mut only_carets = true;
8457 let mut same_text_selected = true;
8458 let mut selected_text = None;
8459
8460 let mut selections_iter = selections.iter().peekable();
8461 while let Some(selection) = selections_iter.next() {
8462 if selection.start != selection.end {
8463 only_carets = false;
8464 }
8465
8466 if same_text_selected {
8467 if selected_text.is_none() {
8468 selected_text =
8469 Some(buffer.text_for_range(selection.range()).collect::<String>());
8470 }
8471
8472 if let Some(next_selection) = selections_iter.peek() {
8473 if next_selection.range().len() == selection.range().len() {
8474 let next_selected_text = buffer
8475 .text_for_range(next_selection.range())
8476 .collect::<String>();
8477 if Some(next_selected_text) != selected_text {
8478 same_text_selected = false;
8479 selected_text = None;
8480 }
8481 } else {
8482 same_text_selected = false;
8483 selected_text = None;
8484 }
8485 }
8486 }
8487 }
8488
8489 if only_carets {
8490 for selection in &mut selections {
8491 let word_range = movement::surrounding_word(
8492 display_map,
8493 selection.start.to_display_point(display_map),
8494 );
8495 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8496 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8497 selection.goal = SelectionGoal::None;
8498 selection.reversed = false;
8499 select_next_match_ranges(
8500 self,
8501 selection.start..selection.end,
8502 replace_newest,
8503 autoscroll,
8504 cx,
8505 );
8506 }
8507
8508 if selections.len() == 1 {
8509 let selection = selections
8510 .last()
8511 .expect("ensured that there's only one selection");
8512 let query = buffer
8513 .text_for_range(selection.start..selection.end)
8514 .collect::<String>();
8515 let is_empty = query.is_empty();
8516 let select_state = SelectNextState {
8517 query: AhoCorasick::new(&[query])?,
8518 wordwise: true,
8519 done: is_empty,
8520 };
8521 self.select_next_state = Some(select_state);
8522 } else {
8523 self.select_next_state = None;
8524 }
8525 } else if let Some(selected_text) = selected_text {
8526 self.select_next_state = Some(SelectNextState {
8527 query: AhoCorasick::new(&[selected_text])?,
8528 wordwise: false,
8529 done: false,
8530 });
8531 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8532 }
8533 }
8534 Ok(())
8535 }
8536
8537 pub fn select_all_matches(
8538 &mut self,
8539 _action: &SelectAllMatches,
8540 cx: &mut ViewContext<Self>,
8541 ) -> Result<()> {
8542 self.push_to_selection_history();
8543 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8544
8545 self.select_next_match_internal(&display_map, false, None, cx)?;
8546 let Some(select_next_state) = self.select_next_state.as_mut() else {
8547 return Ok(());
8548 };
8549 if select_next_state.done {
8550 return Ok(());
8551 }
8552
8553 let mut new_selections = self.selections.all::<usize>(cx);
8554
8555 let buffer = &display_map.buffer_snapshot;
8556 let query_matches = select_next_state
8557 .query
8558 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8559
8560 for query_match in query_matches {
8561 let query_match = query_match.unwrap(); // can only fail due to I/O
8562 let offset_range = query_match.start()..query_match.end();
8563 let display_range = offset_range.start.to_display_point(&display_map)
8564 ..offset_range.end.to_display_point(&display_map);
8565
8566 if !select_next_state.wordwise
8567 || (!movement::is_inside_word(&display_map, display_range.start)
8568 && !movement::is_inside_word(&display_map, display_range.end))
8569 {
8570 self.selections.change_with(cx, |selections| {
8571 new_selections.push(Selection {
8572 id: selections.new_selection_id(),
8573 start: offset_range.start,
8574 end: offset_range.end,
8575 reversed: false,
8576 goal: SelectionGoal::None,
8577 });
8578 });
8579 }
8580 }
8581
8582 new_selections.sort_by_key(|selection| selection.start);
8583 let mut ix = 0;
8584 while ix + 1 < new_selections.len() {
8585 let current_selection = &new_selections[ix];
8586 let next_selection = &new_selections[ix + 1];
8587 if current_selection.range().overlaps(&next_selection.range()) {
8588 if current_selection.id < next_selection.id {
8589 new_selections.remove(ix + 1);
8590 } else {
8591 new_selections.remove(ix);
8592 }
8593 } else {
8594 ix += 1;
8595 }
8596 }
8597
8598 select_next_state.done = true;
8599 self.unfold_ranges(
8600 new_selections.iter().map(|selection| selection.range()),
8601 false,
8602 false,
8603 cx,
8604 );
8605 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8606 selections.select(new_selections)
8607 });
8608
8609 Ok(())
8610 }
8611
8612 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8613 self.push_to_selection_history();
8614 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8615 self.select_next_match_internal(
8616 &display_map,
8617 action.replace_newest,
8618 Some(Autoscroll::newest()),
8619 cx,
8620 )?;
8621 Ok(())
8622 }
8623
8624 pub fn select_previous(
8625 &mut self,
8626 action: &SelectPrevious,
8627 cx: &mut ViewContext<Self>,
8628 ) -> Result<()> {
8629 self.push_to_selection_history();
8630 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8631 let buffer = &display_map.buffer_snapshot;
8632 let mut selections = self.selections.all::<usize>(cx);
8633 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8634 let query = &select_prev_state.query;
8635 if !select_prev_state.done {
8636 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8637 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8638 let mut next_selected_range = None;
8639 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8640 let bytes_before_last_selection =
8641 buffer.reversed_bytes_in_range(0..last_selection.start);
8642 let bytes_after_first_selection =
8643 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8644 let query_matches = query
8645 .stream_find_iter(bytes_before_last_selection)
8646 .map(|result| (last_selection.start, result))
8647 .chain(
8648 query
8649 .stream_find_iter(bytes_after_first_selection)
8650 .map(|result| (buffer.len(), result)),
8651 );
8652 for (end_offset, query_match) in query_matches {
8653 let query_match = query_match.unwrap(); // can only fail due to I/O
8654 let offset_range =
8655 end_offset - query_match.end()..end_offset - query_match.start();
8656 let display_range = offset_range.start.to_display_point(&display_map)
8657 ..offset_range.end.to_display_point(&display_map);
8658
8659 if !select_prev_state.wordwise
8660 || (!movement::is_inside_word(&display_map, display_range.start)
8661 && !movement::is_inside_word(&display_map, display_range.end))
8662 {
8663 next_selected_range = Some(offset_range);
8664 break;
8665 }
8666 }
8667
8668 if let Some(next_selected_range) = next_selected_range {
8669 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
8670 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8671 if action.replace_newest {
8672 s.delete(s.newest_anchor().id);
8673 }
8674 s.insert_range(next_selected_range);
8675 });
8676 } else {
8677 select_prev_state.done = true;
8678 }
8679 }
8680
8681 self.select_prev_state = Some(select_prev_state);
8682 } else {
8683 let mut only_carets = true;
8684 let mut same_text_selected = true;
8685 let mut selected_text = None;
8686
8687 let mut selections_iter = selections.iter().peekable();
8688 while let Some(selection) = selections_iter.next() {
8689 if selection.start != selection.end {
8690 only_carets = false;
8691 }
8692
8693 if same_text_selected {
8694 if selected_text.is_none() {
8695 selected_text =
8696 Some(buffer.text_for_range(selection.range()).collect::<String>());
8697 }
8698
8699 if let Some(next_selection) = selections_iter.peek() {
8700 if next_selection.range().len() == selection.range().len() {
8701 let next_selected_text = buffer
8702 .text_for_range(next_selection.range())
8703 .collect::<String>();
8704 if Some(next_selected_text) != selected_text {
8705 same_text_selected = false;
8706 selected_text = None;
8707 }
8708 } else {
8709 same_text_selected = false;
8710 selected_text = None;
8711 }
8712 }
8713 }
8714 }
8715
8716 if only_carets {
8717 for selection in &mut selections {
8718 let word_range = movement::surrounding_word(
8719 &display_map,
8720 selection.start.to_display_point(&display_map),
8721 );
8722 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8723 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8724 selection.goal = SelectionGoal::None;
8725 selection.reversed = false;
8726 }
8727 if selections.len() == 1 {
8728 let selection = selections
8729 .last()
8730 .expect("ensured that there's only one selection");
8731 let query = buffer
8732 .text_for_range(selection.start..selection.end)
8733 .collect::<String>();
8734 let is_empty = query.is_empty();
8735 let select_state = SelectNextState {
8736 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8737 wordwise: true,
8738 done: is_empty,
8739 };
8740 self.select_prev_state = Some(select_state);
8741 } else {
8742 self.select_prev_state = None;
8743 }
8744
8745 self.unfold_ranges(
8746 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8747 false,
8748 true,
8749 cx,
8750 );
8751 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8752 s.select(selections);
8753 });
8754 } else if let Some(selected_text) = selected_text {
8755 self.select_prev_state = Some(SelectNextState {
8756 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8757 wordwise: false,
8758 done: false,
8759 });
8760 self.select_previous(action, cx)?;
8761 }
8762 }
8763 Ok(())
8764 }
8765
8766 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8767 let text_layout_details = &self.text_layout_details(cx);
8768 self.transact(cx, |this, cx| {
8769 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8770 let mut edits = Vec::new();
8771 let mut selection_edit_ranges = Vec::new();
8772 let mut last_toggled_row = None;
8773 let snapshot = this.buffer.read(cx).read(cx);
8774 let empty_str: Arc<str> = Arc::default();
8775 let mut suffixes_inserted = Vec::new();
8776 let ignore_indent = action.ignore_indent;
8777
8778 fn comment_prefix_range(
8779 snapshot: &MultiBufferSnapshot,
8780 row: MultiBufferRow,
8781 comment_prefix: &str,
8782 comment_prefix_whitespace: &str,
8783 ignore_indent: bool,
8784 ) -> Range<Point> {
8785 let indent_size = if ignore_indent {
8786 0
8787 } else {
8788 snapshot.indent_size_for_line(row).len
8789 };
8790
8791 let start = Point::new(row.0, indent_size);
8792
8793 let mut line_bytes = snapshot
8794 .bytes_in_range(start..snapshot.max_point())
8795 .flatten()
8796 .copied();
8797
8798 // If this line currently begins with the line comment prefix, then record
8799 // the range containing the prefix.
8800 if line_bytes
8801 .by_ref()
8802 .take(comment_prefix.len())
8803 .eq(comment_prefix.bytes())
8804 {
8805 // Include any whitespace that matches the comment prefix.
8806 let matching_whitespace_len = line_bytes
8807 .zip(comment_prefix_whitespace.bytes())
8808 .take_while(|(a, b)| a == b)
8809 .count() as u32;
8810 let end = Point::new(
8811 start.row,
8812 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8813 );
8814 start..end
8815 } else {
8816 start..start
8817 }
8818 }
8819
8820 fn comment_suffix_range(
8821 snapshot: &MultiBufferSnapshot,
8822 row: MultiBufferRow,
8823 comment_suffix: &str,
8824 comment_suffix_has_leading_space: bool,
8825 ) -> Range<Point> {
8826 let end = Point::new(row.0, snapshot.line_len(row));
8827 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8828
8829 let mut line_end_bytes = snapshot
8830 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8831 .flatten()
8832 .copied();
8833
8834 let leading_space_len = if suffix_start_column > 0
8835 && line_end_bytes.next() == Some(b' ')
8836 && comment_suffix_has_leading_space
8837 {
8838 1
8839 } else {
8840 0
8841 };
8842
8843 // If this line currently begins with the line comment prefix, then record
8844 // the range containing the prefix.
8845 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8846 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8847 start..end
8848 } else {
8849 end..end
8850 }
8851 }
8852
8853 // TODO: Handle selections that cross excerpts
8854 for selection in &mut selections {
8855 let start_column = snapshot
8856 .indent_size_for_line(MultiBufferRow(selection.start.row))
8857 .len;
8858 let language = if let Some(language) =
8859 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8860 {
8861 language
8862 } else {
8863 continue;
8864 };
8865
8866 selection_edit_ranges.clear();
8867
8868 // If multiple selections contain a given row, avoid processing that
8869 // row more than once.
8870 let mut start_row = MultiBufferRow(selection.start.row);
8871 if last_toggled_row == Some(start_row) {
8872 start_row = start_row.next_row();
8873 }
8874 let end_row =
8875 if selection.end.row > selection.start.row && selection.end.column == 0 {
8876 MultiBufferRow(selection.end.row - 1)
8877 } else {
8878 MultiBufferRow(selection.end.row)
8879 };
8880 last_toggled_row = Some(end_row);
8881
8882 if start_row > end_row {
8883 continue;
8884 }
8885
8886 // If the language has line comments, toggle those.
8887 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8888
8889 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8890 if ignore_indent {
8891 full_comment_prefixes = full_comment_prefixes
8892 .into_iter()
8893 .map(|s| Arc::from(s.trim_end()))
8894 .collect();
8895 }
8896
8897 if !full_comment_prefixes.is_empty() {
8898 let first_prefix = full_comment_prefixes
8899 .first()
8900 .expect("prefixes is non-empty");
8901 let prefix_trimmed_lengths = full_comment_prefixes
8902 .iter()
8903 .map(|p| p.trim_end_matches(' ').len())
8904 .collect::<SmallVec<[usize; 4]>>();
8905
8906 let mut all_selection_lines_are_comments = true;
8907
8908 for row in start_row.0..=end_row.0 {
8909 let row = MultiBufferRow(row);
8910 if start_row < end_row && snapshot.is_line_blank(row) {
8911 continue;
8912 }
8913
8914 let prefix_range = full_comment_prefixes
8915 .iter()
8916 .zip(prefix_trimmed_lengths.iter().copied())
8917 .map(|(prefix, trimmed_prefix_len)| {
8918 comment_prefix_range(
8919 snapshot.deref(),
8920 row,
8921 &prefix[..trimmed_prefix_len],
8922 &prefix[trimmed_prefix_len..],
8923 ignore_indent,
8924 )
8925 })
8926 .max_by_key(|range| range.end.column - range.start.column)
8927 .expect("prefixes is non-empty");
8928
8929 if prefix_range.is_empty() {
8930 all_selection_lines_are_comments = false;
8931 }
8932
8933 selection_edit_ranges.push(prefix_range);
8934 }
8935
8936 if all_selection_lines_are_comments {
8937 edits.extend(
8938 selection_edit_ranges
8939 .iter()
8940 .cloned()
8941 .map(|range| (range, empty_str.clone())),
8942 );
8943 } else {
8944 let min_column = selection_edit_ranges
8945 .iter()
8946 .map(|range| range.start.column)
8947 .min()
8948 .unwrap_or(0);
8949 edits.extend(selection_edit_ranges.iter().map(|range| {
8950 let position = Point::new(range.start.row, min_column);
8951 (position..position, first_prefix.clone())
8952 }));
8953 }
8954 } else if let Some((full_comment_prefix, comment_suffix)) =
8955 language.block_comment_delimiters()
8956 {
8957 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8958 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8959 let prefix_range = comment_prefix_range(
8960 snapshot.deref(),
8961 start_row,
8962 comment_prefix,
8963 comment_prefix_whitespace,
8964 ignore_indent,
8965 );
8966 let suffix_range = comment_suffix_range(
8967 snapshot.deref(),
8968 end_row,
8969 comment_suffix.trim_start_matches(' '),
8970 comment_suffix.starts_with(' '),
8971 );
8972
8973 if prefix_range.is_empty() || suffix_range.is_empty() {
8974 edits.push((
8975 prefix_range.start..prefix_range.start,
8976 full_comment_prefix.clone(),
8977 ));
8978 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8979 suffixes_inserted.push((end_row, comment_suffix.len()));
8980 } else {
8981 edits.push((prefix_range, empty_str.clone()));
8982 edits.push((suffix_range, empty_str.clone()));
8983 }
8984 } else {
8985 continue;
8986 }
8987 }
8988
8989 drop(snapshot);
8990 this.buffer.update(cx, |buffer, cx| {
8991 buffer.edit(edits, None, cx);
8992 });
8993
8994 // Adjust selections so that they end before any comment suffixes that
8995 // were inserted.
8996 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8997 let mut selections = this.selections.all::<Point>(cx);
8998 let snapshot = this.buffer.read(cx).read(cx);
8999 for selection in &mut selections {
9000 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9001 match row.cmp(&MultiBufferRow(selection.end.row)) {
9002 Ordering::Less => {
9003 suffixes_inserted.next();
9004 continue;
9005 }
9006 Ordering::Greater => break,
9007 Ordering::Equal => {
9008 if selection.end.column == snapshot.line_len(row) {
9009 if selection.is_empty() {
9010 selection.start.column -= suffix_len as u32;
9011 }
9012 selection.end.column -= suffix_len as u32;
9013 }
9014 break;
9015 }
9016 }
9017 }
9018 }
9019
9020 drop(snapshot);
9021 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
9022
9023 let selections = this.selections.all::<Point>(cx);
9024 let selections_on_single_row = selections.windows(2).all(|selections| {
9025 selections[0].start.row == selections[1].start.row
9026 && selections[0].end.row == selections[1].end.row
9027 && selections[0].start.row == selections[0].end.row
9028 });
9029 let selections_selecting = selections
9030 .iter()
9031 .any(|selection| selection.start != selection.end);
9032 let advance_downwards = action.advance_downwards
9033 && selections_on_single_row
9034 && !selections_selecting
9035 && !matches!(this.mode, EditorMode::SingleLine { .. });
9036
9037 if advance_downwards {
9038 let snapshot = this.buffer.read(cx).snapshot(cx);
9039
9040 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
9041 s.move_cursors_with(|display_snapshot, display_point, _| {
9042 let mut point = display_point.to_point(display_snapshot);
9043 point.row += 1;
9044 point = snapshot.clip_point(point, Bias::Left);
9045 let display_point = point.to_display_point(display_snapshot);
9046 let goal = SelectionGoal::HorizontalPosition(
9047 display_snapshot
9048 .x_for_display_point(display_point, text_layout_details)
9049 .into(),
9050 );
9051 (display_point, goal)
9052 })
9053 });
9054 }
9055 });
9056 }
9057
9058 pub fn select_enclosing_symbol(
9059 &mut self,
9060 _: &SelectEnclosingSymbol,
9061 cx: &mut ViewContext<Self>,
9062 ) {
9063 let buffer = self.buffer.read(cx).snapshot(cx);
9064 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9065
9066 fn update_selection(
9067 selection: &Selection<usize>,
9068 buffer_snap: &MultiBufferSnapshot,
9069 ) -> Option<Selection<usize>> {
9070 let cursor = selection.head();
9071 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9072 for symbol in symbols.iter().rev() {
9073 let start = symbol.range.start.to_offset(buffer_snap);
9074 let end = symbol.range.end.to_offset(buffer_snap);
9075 let new_range = start..end;
9076 if start < selection.start || end > selection.end {
9077 return Some(Selection {
9078 id: selection.id,
9079 start: new_range.start,
9080 end: new_range.end,
9081 goal: SelectionGoal::None,
9082 reversed: selection.reversed,
9083 });
9084 }
9085 }
9086 None
9087 }
9088
9089 let mut selected_larger_symbol = false;
9090 let new_selections = old_selections
9091 .iter()
9092 .map(|selection| match update_selection(selection, &buffer) {
9093 Some(new_selection) => {
9094 if new_selection.range() != selection.range() {
9095 selected_larger_symbol = true;
9096 }
9097 new_selection
9098 }
9099 None => selection.clone(),
9100 })
9101 .collect::<Vec<_>>();
9102
9103 if selected_larger_symbol {
9104 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9105 s.select(new_selections);
9106 });
9107 }
9108 }
9109
9110 pub fn select_larger_syntax_node(
9111 &mut self,
9112 _: &SelectLargerSyntaxNode,
9113 cx: &mut ViewContext<Self>,
9114 ) {
9115 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9116 let buffer = self.buffer.read(cx).snapshot(cx);
9117 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9118
9119 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9120 let mut selected_larger_node = false;
9121 let new_selections = old_selections
9122 .iter()
9123 .map(|selection| {
9124 let old_range = selection.start..selection.end;
9125 let mut new_range = old_range.clone();
9126 while let Some(containing_range) =
9127 buffer.range_for_syntax_ancestor(new_range.clone())
9128 {
9129 new_range = containing_range;
9130 if !display_map.intersects_fold(new_range.start)
9131 && !display_map.intersects_fold(new_range.end)
9132 {
9133 break;
9134 }
9135 }
9136
9137 selected_larger_node |= new_range != old_range;
9138 Selection {
9139 id: selection.id,
9140 start: new_range.start,
9141 end: new_range.end,
9142 goal: SelectionGoal::None,
9143 reversed: selection.reversed,
9144 }
9145 })
9146 .collect::<Vec<_>>();
9147
9148 if selected_larger_node {
9149 stack.push(old_selections);
9150 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9151 s.select(new_selections);
9152 });
9153 }
9154 self.select_larger_syntax_node_stack = stack;
9155 }
9156
9157 pub fn select_smaller_syntax_node(
9158 &mut self,
9159 _: &SelectSmallerSyntaxNode,
9160 cx: &mut ViewContext<Self>,
9161 ) {
9162 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9163 if let Some(selections) = stack.pop() {
9164 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9165 s.select(selections.to_vec());
9166 });
9167 }
9168 self.select_larger_syntax_node_stack = stack;
9169 }
9170
9171 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9172 if !EditorSettings::get_global(cx).gutter.runnables {
9173 self.clear_tasks();
9174 return Task::ready(());
9175 }
9176 let project = self.project.clone();
9177 cx.spawn(|this, mut cx| async move {
9178 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9179 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9180 }) else {
9181 return;
9182 };
9183
9184 let Some(project) = project else {
9185 return;
9186 };
9187
9188 let hide_runnables = project
9189 .update(&mut cx, |project, cx| {
9190 // Do not display any test indicators in non-dev server remote projects.
9191 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9192 })
9193 .unwrap_or(true);
9194 if hide_runnables {
9195 return;
9196 }
9197 let new_rows =
9198 cx.background_executor()
9199 .spawn({
9200 let snapshot = display_snapshot.clone();
9201 async move {
9202 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9203 }
9204 })
9205 .await;
9206 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9207
9208 this.update(&mut cx, |this, _| {
9209 this.clear_tasks();
9210 for (key, value) in rows {
9211 this.insert_tasks(key, value);
9212 }
9213 })
9214 .ok();
9215 })
9216 }
9217 fn fetch_runnable_ranges(
9218 snapshot: &DisplaySnapshot,
9219 range: Range<Anchor>,
9220 ) -> Vec<language::RunnableRange> {
9221 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9222 }
9223
9224 fn runnable_rows(
9225 project: Model<Project>,
9226 snapshot: DisplaySnapshot,
9227 runnable_ranges: Vec<RunnableRange>,
9228 mut cx: AsyncWindowContext,
9229 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9230 runnable_ranges
9231 .into_iter()
9232 .filter_map(|mut runnable| {
9233 let tasks = cx
9234 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9235 .ok()?;
9236 if tasks.is_empty() {
9237 return None;
9238 }
9239
9240 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9241
9242 let row = snapshot
9243 .buffer_snapshot
9244 .buffer_line_for_row(MultiBufferRow(point.row))?
9245 .1
9246 .start
9247 .row;
9248
9249 let context_range =
9250 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9251 Some((
9252 (runnable.buffer_id, row),
9253 RunnableTasks {
9254 templates: tasks,
9255 offset: MultiBufferOffset(runnable.run_range.start),
9256 context_range,
9257 column: point.column,
9258 extra_variables: runnable.extra_captures,
9259 },
9260 ))
9261 })
9262 .collect()
9263 }
9264
9265 fn templates_with_tags(
9266 project: &Model<Project>,
9267 runnable: &mut Runnable,
9268 cx: &WindowContext<'_>,
9269 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9270 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9271 let (worktree_id, file) = project
9272 .buffer_for_id(runnable.buffer, cx)
9273 .and_then(|buffer| buffer.read(cx).file())
9274 .map(|file| (file.worktree_id(cx), file.clone()))
9275 .unzip();
9276
9277 (
9278 project.task_store().read(cx).task_inventory().cloned(),
9279 worktree_id,
9280 file,
9281 )
9282 });
9283
9284 let tags = mem::take(&mut runnable.tags);
9285 let mut tags: Vec<_> = tags
9286 .into_iter()
9287 .flat_map(|tag| {
9288 let tag = tag.0.clone();
9289 inventory
9290 .as_ref()
9291 .into_iter()
9292 .flat_map(|inventory| {
9293 inventory.read(cx).list_tasks(
9294 file.clone(),
9295 Some(runnable.language.clone()),
9296 worktree_id,
9297 cx,
9298 )
9299 })
9300 .filter(move |(_, template)| {
9301 template.tags.iter().any(|source_tag| source_tag == &tag)
9302 })
9303 })
9304 .sorted_by_key(|(kind, _)| kind.to_owned())
9305 .collect();
9306 if let Some((leading_tag_source, _)) = tags.first() {
9307 // Strongest source wins; if we have worktree tag binding, prefer that to
9308 // global and language bindings;
9309 // if we have a global binding, prefer that to language binding.
9310 let first_mismatch = tags
9311 .iter()
9312 .position(|(tag_source, _)| tag_source != leading_tag_source);
9313 if let Some(index) = first_mismatch {
9314 tags.truncate(index);
9315 }
9316 }
9317
9318 tags
9319 }
9320
9321 pub fn move_to_enclosing_bracket(
9322 &mut self,
9323 _: &MoveToEnclosingBracket,
9324 cx: &mut ViewContext<Self>,
9325 ) {
9326 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9327 s.move_offsets_with(|snapshot, selection| {
9328 let Some(enclosing_bracket_ranges) =
9329 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9330 else {
9331 return;
9332 };
9333
9334 let mut best_length = usize::MAX;
9335 let mut best_inside = false;
9336 let mut best_in_bracket_range = false;
9337 let mut best_destination = None;
9338 for (open, close) in enclosing_bracket_ranges {
9339 let close = close.to_inclusive();
9340 let length = close.end() - open.start;
9341 let inside = selection.start >= open.end && selection.end <= *close.start();
9342 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9343 || close.contains(&selection.head());
9344
9345 // If best is next to a bracket and current isn't, skip
9346 if !in_bracket_range && best_in_bracket_range {
9347 continue;
9348 }
9349
9350 // Prefer smaller lengths unless best is inside and current isn't
9351 if length > best_length && (best_inside || !inside) {
9352 continue;
9353 }
9354
9355 best_length = length;
9356 best_inside = inside;
9357 best_in_bracket_range = in_bracket_range;
9358 best_destination = Some(
9359 if close.contains(&selection.start) && close.contains(&selection.end) {
9360 if inside {
9361 open.end
9362 } else {
9363 open.start
9364 }
9365 } else if inside {
9366 *close.start()
9367 } else {
9368 *close.end()
9369 },
9370 );
9371 }
9372
9373 if let Some(destination) = best_destination {
9374 selection.collapse_to(destination, SelectionGoal::None);
9375 }
9376 })
9377 });
9378 }
9379
9380 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9381 self.end_selection(cx);
9382 self.selection_history.mode = SelectionHistoryMode::Undoing;
9383 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9384 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9385 self.select_next_state = entry.select_next_state;
9386 self.select_prev_state = entry.select_prev_state;
9387 self.add_selections_state = entry.add_selections_state;
9388 self.request_autoscroll(Autoscroll::newest(), cx);
9389 }
9390 self.selection_history.mode = SelectionHistoryMode::Normal;
9391 }
9392
9393 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9394 self.end_selection(cx);
9395 self.selection_history.mode = SelectionHistoryMode::Redoing;
9396 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9397 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9398 self.select_next_state = entry.select_next_state;
9399 self.select_prev_state = entry.select_prev_state;
9400 self.add_selections_state = entry.add_selections_state;
9401 self.request_autoscroll(Autoscroll::newest(), cx);
9402 }
9403 self.selection_history.mode = SelectionHistoryMode::Normal;
9404 }
9405
9406 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9407 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9408 }
9409
9410 pub fn expand_excerpts_down(
9411 &mut self,
9412 action: &ExpandExcerptsDown,
9413 cx: &mut ViewContext<Self>,
9414 ) {
9415 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9416 }
9417
9418 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9419 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9420 }
9421
9422 pub fn expand_excerpts_for_direction(
9423 &mut self,
9424 lines: u32,
9425 direction: ExpandExcerptDirection,
9426 cx: &mut ViewContext<Self>,
9427 ) {
9428 let selections = self.selections.disjoint_anchors();
9429
9430 let lines = if lines == 0 {
9431 EditorSettings::get_global(cx).expand_excerpt_lines
9432 } else {
9433 lines
9434 };
9435
9436 self.buffer.update(cx, |buffer, cx| {
9437 buffer.expand_excerpts(
9438 selections
9439 .iter()
9440 .map(|selection| selection.head().excerpt_id)
9441 .dedup(),
9442 lines,
9443 direction,
9444 cx,
9445 )
9446 })
9447 }
9448
9449 pub fn expand_excerpt(
9450 &mut self,
9451 excerpt: ExcerptId,
9452 direction: ExpandExcerptDirection,
9453 cx: &mut ViewContext<Self>,
9454 ) {
9455 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9456 self.buffer.update(cx, |buffer, cx| {
9457 buffer.expand_excerpts([excerpt], lines, direction, cx)
9458 })
9459 }
9460
9461 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9462 self.go_to_diagnostic_impl(Direction::Next, cx)
9463 }
9464
9465 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9466 self.go_to_diagnostic_impl(Direction::Prev, cx)
9467 }
9468
9469 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9470 let buffer = self.buffer.read(cx).snapshot(cx);
9471 let selection = self.selections.newest::<usize>(cx);
9472
9473 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9474 if direction == Direction::Next {
9475 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9476 let (group_id, jump_to) = popover.activation_info();
9477 if self.activate_diagnostics(group_id, cx) {
9478 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9479 let mut new_selection = s.newest_anchor().clone();
9480 new_selection.collapse_to(jump_to, SelectionGoal::None);
9481 s.select_anchors(vec![new_selection.clone()]);
9482 });
9483 }
9484 return;
9485 }
9486 }
9487
9488 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9489 active_diagnostics
9490 .primary_range
9491 .to_offset(&buffer)
9492 .to_inclusive()
9493 });
9494 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9495 if active_primary_range.contains(&selection.head()) {
9496 *active_primary_range.start()
9497 } else {
9498 selection.head()
9499 }
9500 } else {
9501 selection.head()
9502 };
9503 let snapshot = self.snapshot(cx);
9504 loop {
9505 let diagnostics = if direction == Direction::Prev {
9506 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9507 } else {
9508 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9509 }
9510 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9511 let group = diagnostics
9512 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9513 // be sorted in a stable way
9514 // skip until we are at current active diagnostic, if it exists
9515 .skip_while(|entry| {
9516 (match direction {
9517 Direction::Prev => entry.range.start >= search_start,
9518 Direction::Next => entry.range.start <= search_start,
9519 }) && self
9520 .active_diagnostics
9521 .as_ref()
9522 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9523 })
9524 .find_map(|entry| {
9525 if entry.diagnostic.is_primary
9526 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9527 && !entry.range.is_empty()
9528 // if we match with the active diagnostic, skip it
9529 && Some(entry.diagnostic.group_id)
9530 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9531 {
9532 Some((entry.range, entry.diagnostic.group_id))
9533 } else {
9534 None
9535 }
9536 });
9537
9538 if let Some((primary_range, group_id)) = group {
9539 if self.activate_diagnostics(group_id, cx) {
9540 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9541 s.select(vec![Selection {
9542 id: selection.id,
9543 start: primary_range.start,
9544 end: primary_range.start,
9545 reversed: false,
9546 goal: SelectionGoal::None,
9547 }]);
9548 });
9549 }
9550 break;
9551 } else {
9552 // Cycle around to the start of the buffer, potentially moving back to the start of
9553 // the currently active diagnostic.
9554 active_primary_range.take();
9555 if direction == Direction::Prev {
9556 if search_start == buffer.len() {
9557 break;
9558 } else {
9559 search_start = buffer.len();
9560 }
9561 } else if search_start == 0 {
9562 break;
9563 } else {
9564 search_start = 0;
9565 }
9566 }
9567 }
9568 }
9569
9570 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9571 let snapshot = self
9572 .display_map
9573 .update(cx, |display_map, cx| display_map.snapshot(cx));
9574 let selection = self.selections.newest::<Point>(cx);
9575 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9576 }
9577
9578 fn go_to_hunk_after_position(
9579 &mut self,
9580 snapshot: &DisplaySnapshot,
9581 position: Point,
9582 cx: &mut ViewContext<'_, Editor>,
9583 ) -> Option<MultiBufferDiffHunk> {
9584 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9585 snapshot,
9586 position,
9587 false,
9588 snapshot
9589 .buffer_snapshot
9590 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9591 cx,
9592 ) {
9593 return Some(hunk);
9594 }
9595
9596 let wrapped_point = Point::zero();
9597 self.go_to_next_hunk_in_direction(
9598 snapshot,
9599 wrapped_point,
9600 true,
9601 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9602 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9603 ),
9604 cx,
9605 )
9606 }
9607
9608 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9609 let snapshot = self
9610 .display_map
9611 .update(cx, |display_map, cx| display_map.snapshot(cx));
9612 let selection = self.selections.newest::<Point>(cx);
9613
9614 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9615 }
9616
9617 fn go_to_hunk_before_position(
9618 &mut self,
9619 snapshot: &DisplaySnapshot,
9620 position: Point,
9621 cx: &mut ViewContext<'_, Editor>,
9622 ) -> Option<MultiBufferDiffHunk> {
9623 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9624 snapshot,
9625 position,
9626 false,
9627 snapshot
9628 .buffer_snapshot
9629 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9630 cx,
9631 ) {
9632 return Some(hunk);
9633 }
9634
9635 let wrapped_point = snapshot.buffer_snapshot.max_point();
9636 self.go_to_next_hunk_in_direction(
9637 snapshot,
9638 wrapped_point,
9639 true,
9640 snapshot
9641 .buffer_snapshot
9642 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9643 cx,
9644 )
9645 }
9646
9647 fn go_to_next_hunk_in_direction(
9648 &mut self,
9649 snapshot: &DisplaySnapshot,
9650 initial_point: Point,
9651 is_wrapped: bool,
9652 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9653 cx: &mut ViewContext<Editor>,
9654 ) -> Option<MultiBufferDiffHunk> {
9655 let display_point = initial_point.to_display_point(snapshot);
9656 let mut hunks = hunks
9657 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9658 .filter(|(display_hunk, _)| {
9659 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9660 })
9661 .dedup();
9662
9663 if let Some((display_hunk, hunk)) = hunks.next() {
9664 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9665 let row = display_hunk.start_display_row();
9666 let point = DisplayPoint::new(row, 0);
9667 s.select_display_ranges([point..point]);
9668 });
9669
9670 Some(hunk)
9671 } else {
9672 None
9673 }
9674 }
9675
9676 pub fn go_to_definition(
9677 &mut self,
9678 _: &GoToDefinition,
9679 cx: &mut ViewContext<Self>,
9680 ) -> Task<Result<Navigated>> {
9681 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9682 cx.spawn(|editor, mut cx| async move {
9683 if definition.await? == Navigated::Yes {
9684 return Ok(Navigated::Yes);
9685 }
9686 match editor.update(&mut cx, |editor, cx| {
9687 editor.find_all_references(&FindAllReferences, cx)
9688 })? {
9689 Some(references) => references.await,
9690 None => Ok(Navigated::No),
9691 }
9692 })
9693 }
9694
9695 pub fn go_to_declaration(
9696 &mut self,
9697 _: &GoToDeclaration,
9698 cx: &mut ViewContext<Self>,
9699 ) -> Task<Result<Navigated>> {
9700 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9701 }
9702
9703 pub fn go_to_declaration_split(
9704 &mut self,
9705 _: &GoToDeclaration,
9706 cx: &mut ViewContext<Self>,
9707 ) -> Task<Result<Navigated>> {
9708 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9709 }
9710
9711 pub fn go_to_implementation(
9712 &mut self,
9713 _: &GoToImplementation,
9714 cx: &mut ViewContext<Self>,
9715 ) -> Task<Result<Navigated>> {
9716 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9717 }
9718
9719 pub fn go_to_implementation_split(
9720 &mut self,
9721 _: &GoToImplementationSplit,
9722 cx: &mut ViewContext<Self>,
9723 ) -> Task<Result<Navigated>> {
9724 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9725 }
9726
9727 pub fn go_to_type_definition(
9728 &mut self,
9729 _: &GoToTypeDefinition,
9730 cx: &mut ViewContext<Self>,
9731 ) -> Task<Result<Navigated>> {
9732 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9733 }
9734
9735 pub fn go_to_definition_split(
9736 &mut self,
9737 _: &GoToDefinitionSplit,
9738 cx: &mut ViewContext<Self>,
9739 ) -> Task<Result<Navigated>> {
9740 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9741 }
9742
9743 pub fn go_to_type_definition_split(
9744 &mut self,
9745 _: &GoToTypeDefinitionSplit,
9746 cx: &mut ViewContext<Self>,
9747 ) -> Task<Result<Navigated>> {
9748 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9749 }
9750
9751 fn go_to_definition_of_kind(
9752 &mut self,
9753 kind: GotoDefinitionKind,
9754 split: bool,
9755 cx: &mut ViewContext<Self>,
9756 ) -> Task<Result<Navigated>> {
9757 let Some(provider) = self.semantics_provider.clone() else {
9758 return Task::ready(Ok(Navigated::No));
9759 };
9760 let head = self.selections.newest::<usize>(cx).head();
9761 let buffer = self.buffer.read(cx);
9762 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9763 text_anchor
9764 } else {
9765 return Task::ready(Ok(Navigated::No));
9766 };
9767
9768 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9769 return Task::ready(Ok(Navigated::No));
9770 };
9771
9772 cx.spawn(|editor, mut cx| async move {
9773 let definitions = definitions.await?;
9774 let navigated = editor
9775 .update(&mut cx, |editor, cx| {
9776 editor.navigate_to_hover_links(
9777 Some(kind),
9778 definitions
9779 .into_iter()
9780 .filter(|location| {
9781 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9782 })
9783 .map(HoverLink::Text)
9784 .collect::<Vec<_>>(),
9785 split,
9786 cx,
9787 )
9788 })?
9789 .await?;
9790 anyhow::Ok(navigated)
9791 })
9792 }
9793
9794 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9795 let position = self.selections.newest_anchor().head();
9796 let Some((buffer, buffer_position)) =
9797 self.buffer.read(cx).text_anchor_for_position(position, cx)
9798 else {
9799 return;
9800 };
9801
9802 cx.spawn(|editor, mut cx| async move {
9803 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9804 editor.update(&mut cx, |_, cx| {
9805 cx.open_url(&url);
9806 })
9807 } else {
9808 Ok(())
9809 }
9810 })
9811 .detach();
9812 }
9813
9814 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9815 let Some(workspace) = self.workspace() else {
9816 return;
9817 };
9818
9819 let position = self.selections.newest_anchor().head();
9820
9821 let Some((buffer, buffer_position)) =
9822 self.buffer.read(cx).text_anchor_for_position(position, cx)
9823 else {
9824 return;
9825 };
9826
9827 let project = self.project.clone();
9828
9829 cx.spawn(|_, mut cx| async move {
9830 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9831
9832 if let Some((_, path)) = result {
9833 workspace
9834 .update(&mut cx, |workspace, cx| {
9835 workspace.open_resolved_path(path, cx)
9836 })?
9837 .await?;
9838 }
9839 anyhow::Ok(())
9840 })
9841 .detach();
9842 }
9843
9844 pub(crate) fn navigate_to_hover_links(
9845 &mut self,
9846 kind: Option<GotoDefinitionKind>,
9847 mut definitions: Vec<HoverLink>,
9848 split: bool,
9849 cx: &mut ViewContext<Editor>,
9850 ) -> Task<Result<Navigated>> {
9851 // If there is one definition, just open it directly
9852 if definitions.len() == 1 {
9853 let definition = definitions.pop().unwrap();
9854
9855 enum TargetTaskResult {
9856 Location(Option<Location>),
9857 AlreadyNavigated,
9858 }
9859
9860 let target_task = match definition {
9861 HoverLink::Text(link) => {
9862 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9863 }
9864 HoverLink::InlayHint(lsp_location, server_id) => {
9865 let computation = self.compute_target_location(lsp_location, server_id, cx);
9866 cx.background_executor().spawn(async move {
9867 let location = computation.await?;
9868 Ok(TargetTaskResult::Location(location))
9869 })
9870 }
9871 HoverLink::Url(url) => {
9872 cx.open_url(&url);
9873 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9874 }
9875 HoverLink::File(path) => {
9876 if let Some(workspace) = self.workspace() {
9877 cx.spawn(|_, mut cx| async move {
9878 workspace
9879 .update(&mut cx, |workspace, cx| {
9880 workspace.open_resolved_path(path, cx)
9881 })?
9882 .await
9883 .map(|_| TargetTaskResult::AlreadyNavigated)
9884 })
9885 } else {
9886 Task::ready(Ok(TargetTaskResult::Location(None)))
9887 }
9888 }
9889 };
9890 cx.spawn(|editor, mut cx| async move {
9891 let target = match target_task.await.context("target resolution task")? {
9892 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9893 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9894 TargetTaskResult::Location(Some(target)) => target,
9895 };
9896
9897 editor.update(&mut cx, |editor, cx| {
9898 let Some(workspace) = editor.workspace() else {
9899 return Navigated::No;
9900 };
9901 let pane = workspace.read(cx).active_pane().clone();
9902
9903 let range = target.range.to_offset(target.buffer.read(cx));
9904 let range = editor.range_for_match(&range);
9905
9906 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9907 let buffer = target.buffer.read(cx);
9908 let range = check_multiline_range(buffer, range);
9909 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9910 s.select_ranges([range]);
9911 });
9912 } else {
9913 cx.window_context().defer(move |cx| {
9914 let target_editor: View<Self> =
9915 workspace.update(cx, |workspace, cx| {
9916 let pane = if split {
9917 workspace.adjacent_pane(cx)
9918 } else {
9919 workspace.active_pane().clone()
9920 };
9921
9922 workspace.open_project_item(
9923 pane,
9924 target.buffer.clone(),
9925 true,
9926 true,
9927 cx,
9928 )
9929 });
9930 target_editor.update(cx, |target_editor, cx| {
9931 // When selecting a definition in a different buffer, disable the nav history
9932 // to avoid creating a history entry at the previous cursor location.
9933 pane.update(cx, |pane, _| pane.disable_history());
9934 let buffer = target.buffer.read(cx);
9935 let range = check_multiline_range(buffer, range);
9936 target_editor.change_selections(
9937 Some(Autoscroll::focused()),
9938 cx,
9939 |s| {
9940 s.select_ranges([range]);
9941 },
9942 );
9943 pane.update(cx, |pane, _| pane.enable_history());
9944 });
9945 });
9946 }
9947 Navigated::Yes
9948 })
9949 })
9950 } else if !definitions.is_empty() {
9951 cx.spawn(|editor, mut cx| async move {
9952 let (title, location_tasks, workspace) = editor
9953 .update(&mut cx, |editor, cx| {
9954 let tab_kind = match kind {
9955 Some(GotoDefinitionKind::Implementation) => "Implementations",
9956 _ => "Definitions",
9957 };
9958 let title = definitions
9959 .iter()
9960 .find_map(|definition| match definition {
9961 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9962 let buffer = origin.buffer.read(cx);
9963 format!(
9964 "{} for {}",
9965 tab_kind,
9966 buffer
9967 .text_for_range(origin.range.clone())
9968 .collect::<String>()
9969 )
9970 }),
9971 HoverLink::InlayHint(_, _) => None,
9972 HoverLink::Url(_) => None,
9973 HoverLink::File(_) => None,
9974 })
9975 .unwrap_or(tab_kind.to_string());
9976 let location_tasks = definitions
9977 .into_iter()
9978 .map(|definition| match definition {
9979 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9980 HoverLink::InlayHint(lsp_location, server_id) => {
9981 editor.compute_target_location(lsp_location, server_id, cx)
9982 }
9983 HoverLink::Url(_) => Task::ready(Ok(None)),
9984 HoverLink::File(_) => Task::ready(Ok(None)),
9985 })
9986 .collect::<Vec<_>>();
9987 (title, location_tasks, editor.workspace().clone())
9988 })
9989 .context("location tasks preparation")?;
9990
9991 let locations = future::join_all(location_tasks)
9992 .await
9993 .into_iter()
9994 .filter_map(|location| location.transpose())
9995 .collect::<Result<_>>()
9996 .context("location tasks")?;
9997
9998 let Some(workspace) = workspace else {
9999 return Ok(Navigated::No);
10000 };
10001 let opened = workspace
10002 .update(&mut cx, |workspace, cx| {
10003 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
10004 })
10005 .ok();
10006
10007 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10008 })
10009 } else {
10010 Task::ready(Ok(Navigated::No))
10011 }
10012 }
10013
10014 fn compute_target_location(
10015 &self,
10016 lsp_location: lsp::Location,
10017 server_id: LanguageServerId,
10018 cx: &mut ViewContext<Self>,
10019 ) -> Task<anyhow::Result<Option<Location>>> {
10020 let Some(project) = self.project.clone() else {
10021 return Task::Ready(Some(Ok(None)));
10022 };
10023
10024 cx.spawn(move |editor, mut cx| async move {
10025 let location_task = editor.update(&mut cx, |_, cx| {
10026 project.update(cx, |project, cx| {
10027 let language_server_name = project
10028 .language_server_statuses(cx)
10029 .find(|(id, _)| server_id == *id)
10030 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10031 language_server_name.map(|language_server_name| {
10032 project.open_local_buffer_via_lsp(
10033 lsp_location.uri.clone(),
10034 server_id,
10035 language_server_name,
10036 cx,
10037 )
10038 })
10039 })
10040 })?;
10041 let location = match location_task {
10042 Some(task) => Some({
10043 let target_buffer_handle = task.await.context("open local buffer")?;
10044 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
10045 let target_start = target_buffer
10046 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
10047 let target_end = target_buffer
10048 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
10049 target_buffer.anchor_after(target_start)
10050 ..target_buffer.anchor_before(target_end)
10051 })?;
10052 Location {
10053 buffer: target_buffer_handle,
10054 range,
10055 }
10056 }),
10057 None => None,
10058 };
10059 Ok(location)
10060 })
10061 }
10062
10063 pub fn find_all_references(
10064 &mut self,
10065 _: &FindAllReferences,
10066 cx: &mut ViewContext<Self>,
10067 ) -> Option<Task<Result<Navigated>>> {
10068 let selection = self.selections.newest::<usize>(cx);
10069 let multi_buffer = self.buffer.read(cx);
10070 let head = selection.head();
10071
10072 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
10073 let head_anchor = multi_buffer_snapshot.anchor_at(
10074 head,
10075 if head < selection.tail() {
10076 Bias::Right
10077 } else {
10078 Bias::Left
10079 },
10080 );
10081
10082 match self
10083 .find_all_references_task_sources
10084 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
10085 {
10086 Ok(_) => {
10087 log::info!(
10088 "Ignoring repeated FindAllReferences invocation with the position of already running task"
10089 );
10090 return None;
10091 }
10092 Err(i) => {
10093 self.find_all_references_task_sources.insert(i, head_anchor);
10094 }
10095 }
10096
10097 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
10098 let workspace = self.workspace()?;
10099 let project = workspace.read(cx).project().clone();
10100 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
10101 Some(cx.spawn(|editor, mut cx| async move {
10102 let _cleanup = defer({
10103 let mut cx = cx.clone();
10104 move || {
10105 let _ = editor.update(&mut cx, |editor, _| {
10106 if let Ok(i) =
10107 editor
10108 .find_all_references_task_sources
10109 .binary_search_by(|anchor| {
10110 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
10111 })
10112 {
10113 editor.find_all_references_task_sources.remove(i);
10114 }
10115 });
10116 }
10117 });
10118
10119 let locations = references.await?;
10120 if locations.is_empty() {
10121 return anyhow::Ok(Navigated::No);
10122 }
10123
10124 workspace.update(&mut cx, |workspace, cx| {
10125 let title = locations
10126 .first()
10127 .as_ref()
10128 .map(|location| {
10129 let buffer = location.buffer.read(cx);
10130 format!(
10131 "References to `{}`",
10132 buffer
10133 .text_for_range(location.range.clone())
10134 .collect::<String>()
10135 )
10136 })
10137 .unwrap();
10138 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10139 Navigated::Yes
10140 })
10141 }))
10142 }
10143
10144 /// Opens a multibuffer with the given project locations in it
10145 pub fn open_locations_in_multibuffer(
10146 workspace: &mut Workspace,
10147 mut locations: Vec<Location>,
10148 title: String,
10149 split: bool,
10150 cx: &mut ViewContext<Workspace>,
10151 ) {
10152 // If there are multiple definitions, open them in a multibuffer
10153 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10154 let mut locations = locations.into_iter().peekable();
10155 let mut ranges_to_highlight = Vec::new();
10156 let capability = workspace.project().read(cx).capability();
10157
10158 let excerpt_buffer = cx.new_model(|cx| {
10159 let mut multibuffer = MultiBuffer::new(capability);
10160 while let Some(location) = locations.next() {
10161 let buffer = location.buffer.read(cx);
10162 let mut ranges_for_buffer = Vec::new();
10163 let range = location.range.to_offset(buffer);
10164 ranges_for_buffer.push(range.clone());
10165
10166 while let Some(next_location) = locations.peek() {
10167 if next_location.buffer == location.buffer {
10168 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10169 locations.next();
10170 } else {
10171 break;
10172 }
10173 }
10174
10175 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10176 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10177 location.buffer.clone(),
10178 ranges_for_buffer,
10179 DEFAULT_MULTIBUFFER_CONTEXT,
10180 cx,
10181 ))
10182 }
10183
10184 multibuffer.with_title(title)
10185 });
10186
10187 let editor = cx.new_view(|cx| {
10188 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10189 });
10190 editor.update(cx, |editor, cx| {
10191 if let Some(first_range) = ranges_to_highlight.first() {
10192 editor.change_selections(None, cx, |selections| {
10193 selections.clear_disjoint();
10194 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10195 });
10196 }
10197 editor.highlight_background::<Self>(
10198 &ranges_to_highlight,
10199 |theme| theme.editor_highlighted_line_background,
10200 cx,
10201 );
10202 });
10203
10204 let item = Box::new(editor);
10205 let item_id = item.item_id();
10206
10207 if split {
10208 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10209 } else {
10210 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10211 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10212 pane.close_current_preview_item(cx)
10213 } else {
10214 None
10215 }
10216 });
10217 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10218 }
10219 workspace.active_pane().update(cx, |pane, cx| {
10220 pane.set_preview_item_id(Some(item_id), cx);
10221 });
10222 }
10223
10224 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10225 use language::ToOffset as _;
10226
10227 let provider = self.semantics_provider.clone()?;
10228 let selection = self.selections.newest_anchor().clone();
10229 let (cursor_buffer, cursor_buffer_position) = self
10230 .buffer
10231 .read(cx)
10232 .text_anchor_for_position(selection.head(), cx)?;
10233 let (tail_buffer, cursor_buffer_position_end) = self
10234 .buffer
10235 .read(cx)
10236 .text_anchor_for_position(selection.tail(), cx)?;
10237 if tail_buffer != cursor_buffer {
10238 return None;
10239 }
10240
10241 let snapshot = cursor_buffer.read(cx).snapshot();
10242 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10243 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10244 let prepare_rename = provider
10245 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10246 .unwrap_or_else(|| Task::ready(Ok(None)));
10247 drop(snapshot);
10248
10249 Some(cx.spawn(|this, mut cx| async move {
10250 let rename_range = if let Some(range) = prepare_rename.await? {
10251 Some(range)
10252 } else {
10253 this.update(&mut cx, |this, cx| {
10254 let buffer = this.buffer.read(cx).snapshot(cx);
10255 let mut buffer_highlights = this
10256 .document_highlights_for_position(selection.head(), &buffer)
10257 .filter(|highlight| {
10258 highlight.start.excerpt_id == selection.head().excerpt_id
10259 && highlight.end.excerpt_id == selection.head().excerpt_id
10260 });
10261 buffer_highlights
10262 .next()
10263 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10264 })?
10265 };
10266 if let Some(rename_range) = rename_range {
10267 this.update(&mut cx, |this, cx| {
10268 let snapshot = cursor_buffer.read(cx).snapshot();
10269 let rename_buffer_range = rename_range.to_offset(&snapshot);
10270 let cursor_offset_in_rename_range =
10271 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10272 let cursor_offset_in_rename_range_end =
10273 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10274
10275 this.take_rename(false, cx);
10276 let buffer = this.buffer.read(cx).read(cx);
10277 let cursor_offset = selection.head().to_offset(&buffer);
10278 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10279 let rename_end = rename_start + rename_buffer_range.len();
10280 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10281 let mut old_highlight_id = None;
10282 let old_name: Arc<str> = buffer
10283 .chunks(rename_start..rename_end, true)
10284 .map(|chunk| {
10285 if old_highlight_id.is_none() {
10286 old_highlight_id = chunk.syntax_highlight_id;
10287 }
10288 chunk.text
10289 })
10290 .collect::<String>()
10291 .into();
10292
10293 drop(buffer);
10294
10295 // Position the selection in the rename editor so that it matches the current selection.
10296 this.show_local_selections = false;
10297 let rename_editor = cx.new_view(|cx| {
10298 let mut editor = Editor::single_line(cx);
10299 editor.buffer.update(cx, |buffer, cx| {
10300 buffer.edit([(0..0, old_name.clone())], None, cx)
10301 });
10302 let rename_selection_range = match cursor_offset_in_rename_range
10303 .cmp(&cursor_offset_in_rename_range_end)
10304 {
10305 Ordering::Equal => {
10306 editor.select_all(&SelectAll, cx);
10307 return editor;
10308 }
10309 Ordering::Less => {
10310 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10311 }
10312 Ordering::Greater => {
10313 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10314 }
10315 };
10316 if rename_selection_range.end > old_name.len() {
10317 editor.select_all(&SelectAll, cx);
10318 } else {
10319 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10320 s.select_ranges([rename_selection_range]);
10321 });
10322 }
10323 editor
10324 });
10325 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10326 if e == &EditorEvent::Focused {
10327 cx.emit(EditorEvent::FocusedIn)
10328 }
10329 })
10330 .detach();
10331
10332 let write_highlights =
10333 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10334 let read_highlights =
10335 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10336 let ranges = write_highlights
10337 .iter()
10338 .flat_map(|(_, ranges)| ranges.iter())
10339 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10340 .cloned()
10341 .collect();
10342
10343 this.highlight_text::<Rename>(
10344 ranges,
10345 HighlightStyle {
10346 fade_out: Some(0.6),
10347 ..Default::default()
10348 },
10349 cx,
10350 );
10351 let rename_focus_handle = rename_editor.focus_handle(cx);
10352 cx.focus(&rename_focus_handle);
10353 let block_id = this.insert_blocks(
10354 [BlockProperties {
10355 style: BlockStyle::Flex,
10356 placement: BlockPlacement::Below(range.start),
10357 height: 1,
10358 render: Box::new({
10359 let rename_editor = rename_editor.clone();
10360 move |cx: &mut BlockContext| {
10361 let mut text_style = cx.editor_style.text.clone();
10362 if let Some(highlight_style) = old_highlight_id
10363 .and_then(|h| h.style(&cx.editor_style.syntax))
10364 {
10365 text_style = text_style.highlight(highlight_style);
10366 }
10367 div()
10368 .pl(cx.anchor_x)
10369 .child(EditorElement::new(
10370 &rename_editor,
10371 EditorStyle {
10372 background: cx.theme().system().transparent,
10373 local_player: cx.editor_style.local_player,
10374 text: text_style,
10375 scrollbar_width: cx.editor_style.scrollbar_width,
10376 syntax: cx.editor_style.syntax.clone(),
10377 status: cx.editor_style.status.clone(),
10378 inlay_hints_style: HighlightStyle {
10379 font_weight: Some(FontWeight::BOLD),
10380 ..make_inlay_hints_style(cx)
10381 },
10382 suggestions_style: HighlightStyle {
10383 color: Some(cx.theme().status().predictive),
10384 ..HighlightStyle::default()
10385 },
10386 ..EditorStyle::default()
10387 },
10388 ))
10389 .into_any_element()
10390 }
10391 }),
10392 priority: 0,
10393 }],
10394 Some(Autoscroll::fit()),
10395 cx,
10396 )[0];
10397 this.pending_rename = Some(RenameState {
10398 range,
10399 old_name,
10400 editor: rename_editor,
10401 block_id,
10402 });
10403 })?;
10404 }
10405
10406 Ok(())
10407 }))
10408 }
10409
10410 pub fn confirm_rename(
10411 &mut self,
10412 _: &ConfirmRename,
10413 cx: &mut ViewContext<Self>,
10414 ) -> Option<Task<Result<()>>> {
10415 let rename = self.take_rename(false, cx)?;
10416 let workspace = self.workspace()?.downgrade();
10417 let (buffer, start) = self
10418 .buffer
10419 .read(cx)
10420 .text_anchor_for_position(rename.range.start, cx)?;
10421 let (end_buffer, _) = self
10422 .buffer
10423 .read(cx)
10424 .text_anchor_for_position(rename.range.end, cx)?;
10425 if buffer != end_buffer {
10426 return None;
10427 }
10428
10429 let old_name = rename.old_name;
10430 let new_name = rename.editor.read(cx).text(cx);
10431
10432 let rename = self.semantics_provider.as_ref()?.perform_rename(
10433 &buffer,
10434 start,
10435 new_name.clone(),
10436 cx,
10437 )?;
10438
10439 Some(cx.spawn(|editor, mut cx| async move {
10440 let project_transaction = rename.await?;
10441 Self::open_project_transaction(
10442 &editor,
10443 workspace,
10444 project_transaction,
10445 format!("Rename: {} → {}", old_name, new_name),
10446 cx.clone(),
10447 )
10448 .await?;
10449
10450 editor.update(&mut cx, |editor, cx| {
10451 editor.refresh_document_highlights(cx);
10452 })?;
10453 Ok(())
10454 }))
10455 }
10456
10457 fn take_rename(
10458 &mut self,
10459 moving_cursor: bool,
10460 cx: &mut ViewContext<Self>,
10461 ) -> Option<RenameState> {
10462 let rename = self.pending_rename.take()?;
10463 if rename.editor.focus_handle(cx).is_focused(cx) {
10464 cx.focus(&self.focus_handle);
10465 }
10466
10467 self.remove_blocks(
10468 [rename.block_id].into_iter().collect(),
10469 Some(Autoscroll::fit()),
10470 cx,
10471 );
10472 self.clear_highlights::<Rename>(cx);
10473 self.show_local_selections = true;
10474
10475 if moving_cursor {
10476 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10477 editor.selections.newest::<usize>(cx).head()
10478 });
10479
10480 // Update the selection to match the position of the selection inside
10481 // the rename editor.
10482 let snapshot = self.buffer.read(cx).read(cx);
10483 let rename_range = rename.range.to_offset(&snapshot);
10484 let cursor_in_editor = snapshot
10485 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10486 .min(rename_range.end);
10487 drop(snapshot);
10488
10489 self.change_selections(None, cx, |s| {
10490 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10491 });
10492 } else {
10493 self.refresh_document_highlights(cx);
10494 }
10495
10496 Some(rename)
10497 }
10498
10499 pub fn pending_rename(&self) -> Option<&RenameState> {
10500 self.pending_rename.as_ref()
10501 }
10502
10503 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10504 let project = match &self.project {
10505 Some(project) => project.clone(),
10506 None => return None,
10507 };
10508
10509 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10510 }
10511
10512 fn format_selections(
10513 &mut self,
10514 _: &FormatSelections,
10515 cx: &mut ViewContext<Self>,
10516 ) -> Option<Task<Result<()>>> {
10517 let project = match &self.project {
10518 Some(project) => project.clone(),
10519 None => return None,
10520 };
10521
10522 let selections = self
10523 .selections
10524 .all_adjusted(cx)
10525 .into_iter()
10526 .filter(|s| !s.is_empty())
10527 .collect_vec();
10528
10529 Some(self.perform_format(
10530 project,
10531 FormatTrigger::Manual,
10532 FormatTarget::Ranges(selections),
10533 cx,
10534 ))
10535 }
10536
10537 fn perform_format(
10538 &mut self,
10539 project: Model<Project>,
10540 trigger: FormatTrigger,
10541 target: FormatTarget,
10542 cx: &mut ViewContext<Self>,
10543 ) -> Task<Result<()>> {
10544 let buffer = self.buffer().clone();
10545 let mut buffers = buffer.read(cx).all_buffers();
10546 if trigger == FormatTrigger::Save {
10547 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10548 }
10549
10550 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10551 let format = project.update(cx, |project, cx| {
10552 project.format(buffers, true, trigger, target, cx)
10553 });
10554
10555 cx.spawn(|_, mut cx| async move {
10556 let transaction = futures::select_biased! {
10557 () = timeout => {
10558 log::warn!("timed out waiting for formatting");
10559 None
10560 }
10561 transaction = format.log_err().fuse() => transaction,
10562 };
10563
10564 buffer
10565 .update(&mut cx, |buffer, cx| {
10566 if let Some(transaction) = transaction {
10567 if !buffer.is_singleton() {
10568 buffer.push_transaction(&transaction.0, cx);
10569 }
10570 }
10571
10572 cx.notify();
10573 })
10574 .ok();
10575
10576 Ok(())
10577 })
10578 }
10579
10580 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10581 if let Some(project) = self.project.clone() {
10582 self.buffer.update(cx, |multi_buffer, cx| {
10583 project.update(cx, |project, cx| {
10584 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10585 });
10586 })
10587 }
10588 }
10589
10590 fn cancel_language_server_work(
10591 &mut self,
10592 _: &actions::CancelLanguageServerWork,
10593 cx: &mut ViewContext<Self>,
10594 ) {
10595 if let Some(project) = self.project.clone() {
10596 self.buffer.update(cx, |multi_buffer, cx| {
10597 project.update(cx, |project, cx| {
10598 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10599 });
10600 })
10601 }
10602 }
10603
10604 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10605 cx.show_character_palette();
10606 }
10607
10608 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10609 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10610 let buffer = self.buffer.read(cx).snapshot(cx);
10611 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10612 let is_valid = buffer
10613 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10614 .any(|entry| {
10615 entry.diagnostic.is_primary
10616 && !entry.range.is_empty()
10617 && entry.range.start == primary_range_start
10618 && entry.diagnostic.message == active_diagnostics.primary_message
10619 });
10620
10621 if is_valid != active_diagnostics.is_valid {
10622 active_diagnostics.is_valid = is_valid;
10623 let mut new_styles = HashMap::default();
10624 for (block_id, diagnostic) in &active_diagnostics.blocks {
10625 new_styles.insert(
10626 *block_id,
10627 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10628 );
10629 }
10630 self.display_map.update(cx, |display_map, _cx| {
10631 display_map.replace_blocks(new_styles)
10632 });
10633 }
10634 }
10635 }
10636
10637 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10638 self.dismiss_diagnostics(cx);
10639 let snapshot = self.snapshot(cx);
10640 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10641 let buffer = self.buffer.read(cx).snapshot(cx);
10642
10643 let mut primary_range = None;
10644 let mut primary_message = None;
10645 let mut group_end = Point::zero();
10646 let diagnostic_group = buffer
10647 .diagnostic_group::<MultiBufferPoint>(group_id)
10648 .filter_map(|entry| {
10649 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10650 && (entry.range.start.row == entry.range.end.row
10651 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10652 {
10653 return None;
10654 }
10655 if entry.range.end > group_end {
10656 group_end = entry.range.end;
10657 }
10658 if entry.diagnostic.is_primary {
10659 primary_range = Some(entry.range.clone());
10660 primary_message = Some(entry.diagnostic.message.clone());
10661 }
10662 Some(entry)
10663 })
10664 .collect::<Vec<_>>();
10665 let primary_range = primary_range?;
10666 let primary_message = primary_message?;
10667 let primary_range =
10668 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10669
10670 let blocks = display_map
10671 .insert_blocks(
10672 diagnostic_group.iter().map(|entry| {
10673 let diagnostic = entry.diagnostic.clone();
10674 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10675 BlockProperties {
10676 style: BlockStyle::Fixed,
10677 placement: BlockPlacement::Below(
10678 buffer.anchor_after(entry.range.start),
10679 ),
10680 height: message_height,
10681 render: diagnostic_block_renderer(diagnostic, None, true, true),
10682 priority: 0,
10683 }
10684 }),
10685 cx,
10686 )
10687 .into_iter()
10688 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10689 .collect();
10690
10691 Some(ActiveDiagnosticGroup {
10692 primary_range,
10693 primary_message,
10694 group_id,
10695 blocks,
10696 is_valid: true,
10697 })
10698 });
10699 self.active_diagnostics.is_some()
10700 }
10701
10702 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10703 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10704 self.display_map.update(cx, |display_map, cx| {
10705 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10706 });
10707 cx.notify();
10708 }
10709 }
10710
10711 pub fn set_selections_from_remote(
10712 &mut self,
10713 selections: Vec<Selection<Anchor>>,
10714 pending_selection: Option<Selection<Anchor>>,
10715 cx: &mut ViewContext<Self>,
10716 ) {
10717 let old_cursor_position = self.selections.newest_anchor().head();
10718 self.selections.change_with(cx, |s| {
10719 s.select_anchors(selections);
10720 if let Some(pending_selection) = pending_selection {
10721 s.set_pending(pending_selection, SelectMode::Character);
10722 } else {
10723 s.clear_pending();
10724 }
10725 });
10726 self.selections_did_change(false, &old_cursor_position, true, cx);
10727 }
10728
10729 fn push_to_selection_history(&mut self) {
10730 self.selection_history.push(SelectionHistoryEntry {
10731 selections: self.selections.disjoint_anchors(),
10732 select_next_state: self.select_next_state.clone(),
10733 select_prev_state: self.select_prev_state.clone(),
10734 add_selections_state: self.add_selections_state.clone(),
10735 });
10736 }
10737
10738 pub fn transact(
10739 &mut self,
10740 cx: &mut ViewContext<Self>,
10741 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10742 ) -> Option<TransactionId> {
10743 self.start_transaction_at(Instant::now(), cx);
10744 update(self, cx);
10745 self.end_transaction_at(Instant::now(), cx)
10746 }
10747
10748 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10749 self.end_selection(cx);
10750 if let Some(tx_id) = self
10751 .buffer
10752 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10753 {
10754 self.selection_history
10755 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10756 cx.emit(EditorEvent::TransactionBegun {
10757 transaction_id: tx_id,
10758 })
10759 }
10760 }
10761
10762 fn end_transaction_at(
10763 &mut self,
10764 now: Instant,
10765 cx: &mut ViewContext<Self>,
10766 ) -> Option<TransactionId> {
10767 if let Some(transaction_id) = self
10768 .buffer
10769 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10770 {
10771 if let Some((_, end_selections)) =
10772 self.selection_history.transaction_mut(transaction_id)
10773 {
10774 *end_selections = Some(self.selections.disjoint_anchors());
10775 } else {
10776 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10777 }
10778
10779 cx.emit(EditorEvent::Edited { transaction_id });
10780 Some(transaction_id)
10781 } else {
10782 None
10783 }
10784 }
10785
10786 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10787 let selection = self.selections.newest::<Point>(cx);
10788
10789 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10790 let range = if selection.is_empty() {
10791 let point = selection.head().to_display_point(&display_map);
10792 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10793 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10794 .to_point(&display_map);
10795 start..end
10796 } else {
10797 selection.range()
10798 };
10799 if display_map.folds_in_range(range).next().is_some() {
10800 self.unfold_lines(&Default::default(), cx)
10801 } else {
10802 self.fold(&Default::default(), cx)
10803 }
10804 }
10805
10806 pub fn toggle_fold_recursive(
10807 &mut self,
10808 _: &actions::ToggleFoldRecursive,
10809 cx: &mut ViewContext<Self>,
10810 ) {
10811 let selection = self.selections.newest::<Point>(cx);
10812
10813 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10814 let range = if selection.is_empty() {
10815 let point = selection.head().to_display_point(&display_map);
10816 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10817 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10818 .to_point(&display_map);
10819 start..end
10820 } else {
10821 selection.range()
10822 };
10823 if display_map.folds_in_range(range).next().is_some() {
10824 self.unfold_recursive(&Default::default(), cx)
10825 } else {
10826 self.fold_recursive(&Default::default(), cx)
10827 }
10828 }
10829
10830 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10831 let mut fold_ranges = Vec::new();
10832 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10833 let selections = self.selections.all_adjusted(cx);
10834
10835 for selection in selections {
10836 let range = selection.range().sorted();
10837 let buffer_start_row = range.start.row;
10838
10839 if range.start.row != range.end.row {
10840 let mut found = false;
10841 let mut row = range.start.row;
10842 while row <= range.end.row {
10843 if let Some((foldable_range, fold_text)) =
10844 { display_map.foldable_range(MultiBufferRow(row)) }
10845 {
10846 found = true;
10847 row = foldable_range.end.row + 1;
10848 fold_ranges.push((foldable_range, fold_text));
10849 } else {
10850 row += 1
10851 }
10852 }
10853 if found {
10854 continue;
10855 }
10856 }
10857
10858 for row in (0..=range.start.row).rev() {
10859 if let Some((foldable_range, fold_text)) =
10860 display_map.foldable_range(MultiBufferRow(row))
10861 {
10862 if foldable_range.end.row >= buffer_start_row {
10863 fold_ranges.push((foldable_range, fold_text));
10864 if row <= range.start.row {
10865 break;
10866 }
10867 }
10868 }
10869 }
10870 }
10871
10872 self.fold_ranges(fold_ranges, true, cx);
10873 }
10874
10875 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10876 let fold_at_level = fold_at.level;
10877 let snapshot = self.buffer.read(cx).snapshot(cx);
10878 let mut fold_ranges = Vec::new();
10879 let mut stack = vec![(0, snapshot.max_buffer_row().0, 1)];
10880
10881 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10882 while start_row < end_row {
10883 match self.snapshot(cx).foldable_range(MultiBufferRow(start_row)) {
10884 Some(foldable_range) => {
10885 let nested_start_row = foldable_range.0.start.row + 1;
10886 let nested_end_row = foldable_range.0.end.row;
10887
10888 if current_level < fold_at_level {
10889 stack.push((nested_start_row, nested_end_row, current_level + 1));
10890 } else if current_level == fold_at_level {
10891 fold_ranges.push(foldable_range);
10892 }
10893
10894 start_row = nested_end_row + 1;
10895 }
10896 None => start_row += 1,
10897 }
10898 }
10899 }
10900
10901 self.fold_ranges(fold_ranges, true, cx);
10902 }
10903
10904 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10905 let mut fold_ranges = Vec::new();
10906 let snapshot = self.buffer.read(cx).snapshot(cx);
10907
10908 for row in 0..snapshot.max_buffer_row().0 {
10909 if let Some(foldable_range) = self.snapshot(cx).foldable_range(MultiBufferRow(row)) {
10910 fold_ranges.push(foldable_range);
10911 }
10912 }
10913
10914 self.fold_ranges(fold_ranges, true, cx);
10915 }
10916
10917 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10918 let mut fold_ranges = Vec::new();
10919 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10920 let selections = self.selections.all_adjusted(cx);
10921
10922 for selection in selections {
10923 let range = selection.range().sorted();
10924 let buffer_start_row = range.start.row;
10925
10926 if range.start.row != range.end.row {
10927 let mut found = false;
10928 for row in range.start.row..=range.end.row {
10929 if let Some((foldable_range, fold_text)) =
10930 { display_map.foldable_range(MultiBufferRow(row)) }
10931 {
10932 found = true;
10933 fold_ranges.push((foldable_range, fold_text));
10934 }
10935 }
10936 if found {
10937 continue;
10938 }
10939 }
10940
10941 for row in (0..=range.start.row).rev() {
10942 if let Some((foldable_range, fold_text)) =
10943 display_map.foldable_range(MultiBufferRow(row))
10944 {
10945 if foldable_range.end.row >= buffer_start_row {
10946 fold_ranges.push((foldable_range, fold_text));
10947 } else {
10948 break;
10949 }
10950 }
10951 }
10952 }
10953
10954 self.fold_ranges(fold_ranges, true, cx);
10955 }
10956
10957 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10958 let buffer_row = fold_at.buffer_row;
10959 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10960
10961 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10962 let autoscroll = self
10963 .selections
10964 .all::<Point>(cx)
10965 .iter()
10966 .any(|selection| fold_range.overlaps(&selection.range()));
10967
10968 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10969 }
10970 }
10971
10972 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10973 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10974 let buffer = &display_map.buffer_snapshot;
10975 let selections = self.selections.all::<Point>(cx);
10976 let ranges = selections
10977 .iter()
10978 .map(|s| {
10979 let range = s.display_range(&display_map).sorted();
10980 let mut start = range.start.to_point(&display_map);
10981 let mut end = range.end.to_point(&display_map);
10982 start.column = 0;
10983 end.column = buffer.line_len(MultiBufferRow(end.row));
10984 start..end
10985 })
10986 .collect::<Vec<_>>();
10987
10988 self.unfold_ranges(ranges, true, true, cx);
10989 }
10990
10991 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10992 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10993 let selections = self.selections.all::<Point>(cx);
10994 let ranges = selections
10995 .iter()
10996 .map(|s| {
10997 let mut range = s.display_range(&display_map).sorted();
10998 *range.start.column_mut() = 0;
10999 *range.end.column_mut() = display_map.line_len(range.end.row());
11000 let start = range.start.to_point(&display_map);
11001 let end = range.end.to_point(&display_map);
11002 start..end
11003 })
11004 .collect::<Vec<_>>();
11005
11006 self.unfold_ranges(ranges, true, true, cx);
11007 }
11008
11009 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
11010 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11011
11012 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
11013 ..Point::new(
11014 unfold_at.buffer_row.0,
11015 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
11016 );
11017
11018 let autoscroll = self
11019 .selections
11020 .all::<Point>(cx)
11021 .iter()
11022 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
11023
11024 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
11025 }
11026
11027 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11028 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11029 self.unfold_ranges(
11030 [Point::zero()..display_map.max_point().to_point(&display_map)],
11031 true,
11032 true,
11033 cx,
11034 );
11035 }
11036
11037 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11038 let selections = self.selections.all::<Point>(cx);
11039 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11040 let line_mode = self.selections.line_mode;
11041 let ranges = selections.into_iter().map(|s| {
11042 if line_mode {
11043 let start = Point::new(s.start.row, 0);
11044 let end = Point::new(
11045 s.end.row,
11046 display_map
11047 .buffer_snapshot
11048 .line_len(MultiBufferRow(s.end.row)),
11049 );
11050 (start..end, display_map.fold_placeholder.clone())
11051 } else {
11052 (s.start..s.end, display_map.fold_placeholder.clone())
11053 }
11054 });
11055 self.fold_ranges(ranges, true, cx);
11056 }
11057
11058 pub fn fold_ranges<T: ToOffset + Clone>(
11059 &mut self,
11060 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
11061 auto_scroll: bool,
11062 cx: &mut ViewContext<Self>,
11063 ) {
11064 let mut fold_ranges = Vec::new();
11065 let mut buffers_affected = HashMap::default();
11066 let multi_buffer = self.buffer().read(cx);
11067 for (fold_range, fold_text) in ranges {
11068 if let Some((_, buffer, _)) =
11069 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
11070 {
11071 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11072 };
11073 fold_ranges.push((fold_range, fold_text));
11074 }
11075
11076 let mut ranges = fold_ranges.into_iter().peekable();
11077 if ranges.peek().is_some() {
11078 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
11079
11080 if auto_scroll {
11081 self.request_autoscroll(Autoscroll::fit(), cx);
11082 }
11083
11084 for buffer in buffers_affected.into_values() {
11085 self.sync_expanded_diff_hunks(buffer, cx);
11086 }
11087
11088 cx.notify();
11089
11090 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11091 // Clear diagnostics block when folding a range that contains it.
11092 let snapshot = self.snapshot(cx);
11093 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11094 drop(snapshot);
11095 self.active_diagnostics = Some(active_diagnostics);
11096 self.dismiss_diagnostics(cx);
11097 } else {
11098 self.active_diagnostics = Some(active_diagnostics);
11099 }
11100 }
11101
11102 self.scrollbar_marker_state.dirty = true;
11103 }
11104 }
11105
11106 pub fn unfold_ranges<T: ToOffset + Clone>(
11107 &mut self,
11108 ranges: impl IntoIterator<Item = Range<T>>,
11109 inclusive: bool,
11110 auto_scroll: bool,
11111 cx: &mut ViewContext<Self>,
11112 ) {
11113 let mut unfold_ranges = Vec::new();
11114 let mut buffers_affected = HashMap::default();
11115 let multi_buffer = self.buffer().read(cx);
11116 for range in ranges {
11117 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11118 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11119 };
11120 unfold_ranges.push(range);
11121 }
11122
11123 let mut ranges = unfold_ranges.into_iter().peekable();
11124 if ranges.peek().is_some() {
11125 self.display_map
11126 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
11127 if auto_scroll {
11128 self.request_autoscroll(Autoscroll::fit(), cx);
11129 }
11130
11131 for buffer in buffers_affected.into_values() {
11132 self.sync_expanded_diff_hunks(buffer, cx);
11133 }
11134
11135 cx.notify();
11136 self.scrollbar_marker_state.dirty = true;
11137 self.active_indent_guides_state.dirty = true;
11138 }
11139 }
11140
11141 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11142 self.display_map.read(cx).fold_placeholder.clone()
11143 }
11144
11145 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11146 if hovered != self.gutter_hovered {
11147 self.gutter_hovered = hovered;
11148 cx.notify();
11149 }
11150 }
11151
11152 pub fn insert_blocks(
11153 &mut self,
11154 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11155 autoscroll: Option<Autoscroll>,
11156 cx: &mut ViewContext<Self>,
11157 ) -> Vec<CustomBlockId> {
11158 let blocks = self
11159 .display_map
11160 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11161 if let Some(autoscroll) = autoscroll {
11162 self.request_autoscroll(autoscroll, cx);
11163 }
11164 cx.notify();
11165 blocks
11166 }
11167
11168 pub fn resize_blocks(
11169 &mut self,
11170 heights: HashMap<CustomBlockId, u32>,
11171 autoscroll: Option<Autoscroll>,
11172 cx: &mut ViewContext<Self>,
11173 ) {
11174 self.display_map
11175 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11176 if let Some(autoscroll) = autoscroll {
11177 self.request_autoscroll(autoscroll, cx);
11178 }
11179 cx.notify();
11180 }
11181
11182 pub fn replace_blocks(
11183 &mut self,
11184 renderers: HashMap<CustomBlockId, RenderBlock>,
11185 autoscroll: Option<Autoscroll>,
11186 cx: &mut ViewContext<Self>,
11187 ) {
11188 self.display_map
11189 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11190 if let Some(autoscroll) = autoscroll {
11191 self.request_autoscroll(autoscroll, cx);
11192 }
11193 cx.notify();
11194 }
11195
11196 pub fn remove_blocks(
11197 &mut self,
11198 block_ids: HashSet<CustomBlockId>,
11199 autoscroll: Option<Autoscroll>,
11200 cx: &mut ViewContext<Self>,
11201 ) {
11202 self.display_map.update(cx, |display_map, cx| {
11203 display_map.remove_blocks(block_ids, cx)
11204 });
11205 if let Some(autoscroll) = autoscroll {
11206 self.request_autoscroll(autoscroll, cx);
11207 }
11208 cx.notify();
11209 }
11210
11211 pub fn row_for_block(
11212 &self,
11213 block_id: CustomBlockId,
11214 cx: &mut ViewContext<Self>,
11215 ) -> Option<DisplayRow> {
11216 self.display_map
11217 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11218 }
11219
11220 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11221 self.focused_block = Some(focused_block);
11222 }
11223
11224 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11225 self.focused_block.take()
11226 }
11227
11228 pub fn insert_creases(
11229 &mut self,
11230 creases: impl IntoIterator<Item = Crease>,
11231 cx: &mut ViewContext<Self>,
11232 ) -> Vec<CreaseId> {
11233 self.display_map
11234 .update(cx, |map, cx| map.insert_creases(creases, cx))
11235 }
11236
11237 pub fn remove_creases(
11238 &mut self,
11239 ids: impl IntoIterator<Item = CreaseId>,
11240 cx: &mut ViewContext<Self>,
11241 ) {
11242 self.display_map
11243 .update(cx, |map, cx| map.remove_creases(ids, cx));
11244 }
11245
11246 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11247 self.display_map
11248 .update(cx, |map, cx| map.snapshot(cx))
11249 .longest_row()
11250 }
11251
11252 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11253 self.display_map
11254 .update(cx, |map, cx| map.snapshot(cx))
11255 .max_point()
11256 }
11257
11258 pub fn text(&self, cx: &AppContext) -> String {
11259 self.buffer.read(cx).read(cx).text()
11260 }
11261
11262 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11263 let text = self.text(cx);
11264 let text = text.trim();
11265
11266 if text.is_empty() {
11267 return None;
11268 }
11269
11270 Some(text.to_string())
11271 }
11272
11273 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11274 self.transact(cx, |this, cx| {
11275 this.buffer
11276 .read(cx)
11277 .as_singleton()
11278 .expect("you can only call set_text on editors for singleton buffers")
11279 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11280 });
11281 }
11282
11283 pub fn display_text(&self, cx: &mut AppContext) -> String {
11284 self.display_map
11285 .update(cx, |map, cx| map.snapshot(cx))
11286 .text()
11287 }
11288
11289 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11290 let mut wrap_guides = smallvec::smallvec![];
11291
11292 if self.show_wrap_guides == Some(false) {
11293 return wrap_guides;
11294 }
11295
11296 let settings = self.buffer.read(cx).settings_at(0, cx);
11297 if settings.show_wrap_guides {
11298 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11299 wrap_guides.push((soft_wrap as usize, true));
11300 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11301 wrap_guides.push((soft_wrap as usize, true));
11302 }
11303 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11304 }
11305
11306 wrap_guides
11307 }
11308
11309 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11310 let settings = self.buffer.read(cx).settings_at(0, cx);
11311 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11312 match mode {
11313 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11314 SoftWrap::None
11315 }
11316 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11317 language_settings::SoftWrap::PreferredLineLength => {
11318 SoftWrap::Column(settings.preferred_line_length)
11319 }
11320 language_settings::SoftWrap::Bounded => {
11321 SoftWrap::Bounded(settings.preferred_line_length)
11322 }
11323 }
11324 }
11325
11326 pub fn set_soft_wrap_mode(
11327 &mut self,
11328 mode: language_settings::SoftWrap,
11329 cx: &mut ViewContext<Self>,
11330 ) {
11331 self.soft_wrap_mode_override = Some(mode);
11332 cx.notify();
11333 }
11334
11335 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11336 self.text_style_refinement = Some(style);
11337 }
11338
11339 /// called by the Element so we know what style we were most recently rendered with.
11340 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11341 let rem_size = cx.rem_size();
11342 self.display_map.update(cx, |map, cx| {
11343 map.set_font(
11344 style.text.font(),
11345 style.text.font_size.to_pixels(rem_size),
11346 cx,
11347 )
11348 });
11349 self.style = Some(style);
11350 }
11351
11352 pub fn style(&self) -> Option<&EditorStyle> {
11353 self.style.as_ref()
11354 }
11355
11356 // Called by the element. This method is not designed to be called outside of the editor
11357 // element's layout code because it does not notify when rewrapping is computed synchronously.
11358 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11359 self.display_map
11360 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11361 }
11362
11363 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11364 if self.soft_wrap_mode_override.is_some() {
11365 self.soft_wrap_mode_override.take();
11366 } else {
11367 let soft_wrap = match self.soft_wrap_mode(cx) {
11368 SoftWrap::GitDiff => return,
11369 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11370 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11371 language_settings::SoftWrap::None
11372 }
11373 };
11374 self.soft_wrap_mode_override = Some(soft_wrap);
11375 }
11376 cx.notify();
11377 }
11378
11379 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11380 let Some(workspace) = self.workspace() else {
11381 return;
11382 };
11383 let fs = workspace.read(cx).app_state().fs.clone();
11384 let current_show = TabBarSettings::get_global(cx).show;
11385 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11386 setting.show = Some(!current_show);
11387 });
11388 }
11389
11390 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11391 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11392 self.buffer
11393 .read(cx)
11394 .settings_at(0, cx)
11395 .indent_guides
11396 .enabled
11397 });
11398 self.show_indent_guides = Some(!currently_enabled);
11399 cx.notify();
11400 }
11401
11402 fn should_show_indent_guides(&self) -> Option<bool> {
11403 self.show_indent_guides
11404 }
11405
11406 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11407 let mut editor_settings = EditorSettings::get_global(cx).clone();
11408 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11409 EditorSettings::override_global(editor_settings, cx);
11410 }
11411
11412 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11413 self.use_relative_line_numbers
11414 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11415 }
11416
11417 pub fn toggle_relative_line_numbers(
11418 &mut self,
11419 _: &ToggleRelativeLineNumbers,
11420 cx: &mut ViewContext<Self>,
11421 ) {
11422 let is_relative = self.should_use_relative_line_numbers(cx);
11423 self.set_relative_line_number(Some(!is_relative), cx)
11424 }
11425
11426 pub fn set_relative_line_number(
11427 &mut self,
11428 is_relative: Option<bool>,
11429 cx: &mut ViewContext<Self>,
11430 ) {
11431 self.use_relative_line_numbers = is_relative;
11432 cx.notify();
11433 }
11434
11435 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11436 self.show_gutter = show_gutter;
11437 cx.notify();
11438 }
11439
11440 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11441 self.show_line_numbers = Some(show_line_numbers);
11442 cx.notify();
11443 }
11444
11445 pub fn set_show_git_diff_gutter(
11446 &mut self,
11447 show_git_diff_gutter: bool,
11448 cx: &mut ViewContext<Self>,
11449 ) {
11450 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11451 cx.notify();
11452 }
11453
11454 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11455 self.show_code_actions = Some(show_code_actions);
11456 cx.notify();
11457 }
11458
11459 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11460 self.show_runnables = Some(show_runnables);
11461 cx.notify();
11462 }
11463
11464 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11465 if self.display_map.read(cx).masked != masked {
11466 self.display_map.update(cx, |map, _| map.masked = masked);
11467 }
11468 cx.notify()
11469 }
11470
11471 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11472 self.show_wrap_guides = Some(show_wrap_guides);
11473 cx.notify();
11474 }
11475
11476 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11477 self.show_indent_guides = Some(show_indent_guides);
11478 cx.notify();
11479 }
11480
11481 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11482 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11483 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11484 if let Some(dir) = file.abs_path(cx).parent() {
11485 return Some(dir.to_owned());
11486 }
11487 }
11488
11489 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11490 return Some(project_path.path.to_path_buf());
11491 }
11492 }
11493
11494 None
11495 }
11496
11497 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11498 self.active_excerpt(cx)?
11499 .1
11500 .read(cx)
11501 .file()
11502 .and_then(|f| f.as_local())
11503 }
11504
11505 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11506 if let Some(target) = self.target_file(cx) {
11507 cx.reveal_path(&target.abs_path(cx));
11508 }
11509 }
11510
11511 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11512 if let Some(file) = self.target_file(cx) {
11513 if let Some(path) = file.abs_path(cx).to_str() {
11514 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11515 }
11516 }
11517 }
11518
11519 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11520 if let Some(file) = self.target_file(cx) {
11521 if let Some(path) = file.path().to_str() {
11522 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11523 }
11524 }
11525 }
11526
11527 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11528 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11529
11530 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11531 self.start_git_blame(true, cx);
11532 }
11533
11534 cx.notify();
11535 }
11536
11537 pub fn toggle_git_blame_inline(
11538 &mut self,
11539 _: &ToggleGitBlameInline,
11540 cx: &mut ViewContext<Self>,
11541 ) {
11542 self.toggle_git_blame_inline_internal(true, cx);
11543 cx.notify();
11544 }
11545
11546 pub fn git_blame_inline_enabled(&self) -> bool {
11547 self.git_blame_inline_enabled
11548 }
11549
11550 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11551 self.show_selection_menu = self
11552 .show_selection_menu
11553 .map(|show_selections_menu| !show_selections_menu)
11554 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11555
11556 cx.notify();
11557 }
11558
11559 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11560 self.show_selection_menu
11561 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11562 }
11563
11564 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11565 if let Some(project) = self.project.as_ref() {
11566 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11567 return;
11568 };
11569
11570 if buffer.read(cx).file().is_none() {
11571 return;
11572 }
11573
11574 let focused = self.focus_handle(cx).contains_focused(cx);
11575
11576 let project = project.clone();
11577 let blame =
11578 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11579 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11580 self.blame = Some(blame);
11581 }
11582 }
11583
11584 fn toggle_git_blame_inline_internal(
11585 &mut self,
11586 user_triggered: bool,
11587 cx: &mut ViewContext<Self>,
11588 ) {
11589 if self.git_blame_inline_enabled {
11590 self.git_blame_inline_enabled = false;
11591 self.show_git_blame_inline = false;
11592 self.show_git_blame_inline_delay_task.take();
11593 } else {
11594 self.git_blame_inline_enabled = true;
11595 self.start_git_blame_inline(user_triggered, cx);
11596 }
11597
11598 cx.notify();
11599 }
11600
11601 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11602 self.start_git_blame(user_triggered, cx);
11603
11604 if ProjectSettings::get_global(cx)
11605 .git
11606 .inline_blame_delay()
11607 .is_some()
11608 {
11609 self.start_inline_blame_timer(cx);
11610 } else {
11611 self.show_git_blame_inline = true
11612 }
11613 }
11614
11615 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11616 self.blame.as_ref()
11617 }
11618
11619 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11620 self.show_git_blame_gutter && self.has_blame_entries(cx)
11621 }
11622
11623 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11624 self.show_git_blame_inline
11625 && self.focus_handle.is_focused(cx)
11626 && !self.newest_selection_head_on_empty_line(cx)
11627 && self.has_blame_entries(cx)
11628 }
11629
11630 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11631 self.blame()
11632 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11633 }
11634
11635 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11636 let cursor_anchor = self.selections.newest_anchor().head();
11637
11638 let snapshot = self.buffer.read(cx).snapshot(cx);
11639 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11640
11641 snapshot.line_len(buffer_row) == 0
11642 }
11643
11644 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11645 let buffer_and_selection = maybe!({
11646 let selection = self.selections.newest::<Point>(cx);
11647 let selection_range = selection.range();
11648
11649 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11650 (buffer, selection_range.start.row..selection_range.end.row)
11651 } else {
11652 let buffer_ranges = self
11653 .buffer()
11654 .read(cx)
11655 .range_to_buffer_ranges(selection_range, cx);
11656
11657 let (buffer, range, _) = if selection.reversed {
11658 buffer_ranges.first()
11659 } else {
11660 buffer_ranges.last()
11661 }?;
11662
11663 let snapshot = buffer.read(cx).snapshot();
11664 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11665 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11666 (buffer.clone(), selection)
11667 };
11668
11669 Some((buffer, selection))
11670 });
11671
11672 let Some((buffer, selection)) = buffer_and_selection else {
11673 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11674 };
11675
11676 let Some(project) = self.project.as_ref() else {
11677 return Task::ready(Err(anyhow!("editor does not have project")));
11678 };
11679
11680 project.update(cx, |project, cx| {
11681 project.get_permalink_to_line(&buffer, selection, cx)
11682 })
11683 }
11684
11685 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11686 let permalink_task = self.get_permalink_to_line(cx);
11687 let workspace = self.workspace();
11688
11689 cx.spawn(|_, mut cx| async move {
11690 match permalink_task.await {
11691 Ok(permalink) => {
11692 cx.update(|cx| {
11693 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11694 })
11695 .ok();
11696 }
11697 Err(err) => {
11698 let message = format!("Failed to copy permalink: {err}");
11699
11700 Err::<(), anyhow::Error>(err).log_err();
11701
11702 if let Some(workspace) = workspace {
11703 workspace
11704 .update(&mut cx, |workspace, cx| {
11705 struct CopyPermalinkToLine;
11706
11707 workspace.show_toast(
11708 Toast::new(
11709 NotificationId::unique::<CopyPermalinkToLine>(),
11710 message,
11711 ),
11712 cx,
11713 )
11714 })
11715 .ok();
11716 }
11717 }
11718 }
11719 })
11720 .detach();
11721 }
11722
11723 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11724 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11725 if let Some(file) = self.target_file(cx) {
11726 if let Some(path) = file.path().to_str() {
11727 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11728 }
11729 }
11730 }
11731
11732 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11733 let permalink_task = self.get_permalink_to_line(cx);
11734 let workspace = self.workspace();
11735
11736 cx.spawn(|_, mut cx| async move {
11737 match permalink_task.await {
11738 Ok(permalink) => {
11739 cx.update(|cx| {
11740 cx.open_url(permalink.as_ref());
11741 })
11742 .ok();
11743 }
11744 Err(err) => {
11745 let message = format!("Failed to open permalink: {err}");
11746
11747 Err::<(), anyhow::Error>(err).log_err();
11748
11749 if let Some(workspace) = workspace {
11750 workspace
11751 .update(&mut cx, |workspace, cx| {
11752 struct OpenPermalinkToLine;
11753
11754 workspace.show_toast(
11755 Toast::new(
11756 NotificationId::unique::<OpenPermalinkToLine>(),
11757 message,
11758 ),
11759 cx,
11760 )
11761 })
11762 .ok();
11763 }
11764 }
11765 }
11766 })
11767 .detach();
11768 }
11769
11770 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11771 /// last highlight added will be used.
11772 ///
11773 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11774 pub fn highlight_rows<T: 'static>(
11775 &mut self,
11776 range: Range<Anchor>,
11777 color: Hsla,
11778 should_autoscroll: bool,
11779 cx: &mut ViewContext<Self>,
11780 ) {
11781 let snapshot = self.buffer().read(cx).snapshot(cx);
11782 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11783 let ix = row_highlights.binary_search_by(|highlight| {
11784 Ordering::Equal
11785 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11786 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11787 });
11788
11789 if let Err(mut ix) = ix {
11790 let index = post_inc(&mut self.highlight_order);
11791
11792 // If this range intersects with the preceding highlight, then merge it with
11793 // the preceding highlight. Otherwise insert a new highlight.
11794 let mut merged = false;
11795 if ix > 0 {
11796 let prev_highlight = &mut row_highlights[ix - 1];
11797 if prev_highlight
11798 .range
11799 .end
11800 .cmp(&range.start, &snapshot)
11801 .is_ge()
11802 {
11803 ix -= 1;
11804 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11805 prev_highlight.range.end = range.end;
11806 }
11807 merged = true;
11808 prev_highlight.index = index;
11809 prev_highlight.color = color;
11810 prev_highlight.should_autoscroll = should_autoscroll;
11811 }
11812 }
11813
11814 if !merged {
11815 row_highlights.insert(
11816 ix,
11817 RowHighlight {
11818 range: range.clone(),
11819 index,
11820 color,
11821 should_autoscroll,
11822 },
11823 );
11824 }
11825
11826 // If any of the following highlights intersect with this one, merge them.
11827 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11828 let highlight = &row_highlights[ix];
11829 if next_highlight
11830 .range
11831 .start
11832 .cmp(&highlight.range.end, &snapshot)
11833 .is_le()
11834 {
11835 if next_highlight
11836 .range
11837 .end
11838 .cmp(&highlight.range.end, &snapshot)
11839 .is_gt()
11840 {
11841 row_highlights[ix].range.end = next_highlight.range.end;
11842 }
11843 row_highlights.remove(ix + 1);
11844 } else {
11845 break;
11846 }
11847 }
11848 }
11849 }
11850
11851 /// Remove any highlighted row ranges of the given type that intersect the
11852 /// given ranges.
11853 pub fn remove_highlighted_rows<T: 'static>(
11854 &mut self,
11855 ranges_to_remove: Vec<Range<Anchor>>,
11856 cx: &mut ViewContext<Self>,
11857 ) {
11858 let snapshot = self.buffer().read(cx).snapshot(cx);
11859 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11860 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11861 row_highlights.retain(|highlight| {
11862 while let Some(range_to_remove) = ranges_to_remove.peek() {
11863 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11864 Ordering::Less | Ordering::Equal => {
11865 ranges_to_remove.next();
11866 }
11867 Ordering::Greater => {
11868 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11869 Ordering::Less | Ordering::Equal => {
11870 return false;
11871 }
11872 Ordering::Greater => break,
11873 }
11874 }
11875 }
11876 }
11877
11878 true
11879 })
11880 }
11881
11882 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11883 pub fn clear_row_highlights<T: 'static>(&mut self) {
11884 self.highlighted_rows.remove(&TypeId::of::<T>());
11885 }
11886
11887 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11888 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11889 self.highlighted_rows
11890 .get(&TypeId::of::<T>())
11891 .map_or(&[] as &[_], |vec| vec.as_slice())
11892 .iter()
11893 .map(|highlight| (highlight.range.clone(), highlight.color))
11894 }
11895
11896 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11897 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11898 /// Allows to ignore certain kinds of highlights.
11899 pub fn highlighted_display_rows(
11900 &mut self,
11901 cx: &mut WindowContext,
11902 ) -> BTreeMap<DisplayRow, Hsla> {
11903 let snapshot = self.snapshot(cx);
11904 let mut used_highlight_orders = HashMap::default();
11905 self.highlighted_rows
11906 .iter()
11907 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11908 .fold(
11909 BTreeMap::<DisplayRow, Hsla>::new(),
11910 |mut unique_rows, highlight| {
11911 let start = highlight.range.start.to_display_point(&snapshot);
11912 let end = highlight.range.end.to_display_point(&snapshot);
11913 let start_row = start.row().0;
11914 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11915 && end.column() == 0
11916 {
11917 end.row().0.saturating_sub(1)
11918 } else {
11919 end.row().0
11920 };
11921 for row in start_row..=end_row {
11922 let used_index =
11923 used_highlight_orders.entry(row).or_insert(highlight.index);
11924 if highlight.index >= *used_index {
11925 *used_index = highlight.index;
11926 unique_rows.insert(DisplayRow(row), highlight.color);
11927 }
11928 }
11929 unique_rows
11930 },
11931 )
11932 }
11933
11934 pub fn highlighted_display_row_for_autoscroll(
11935 &self,
11936 snapshot: &DisplaySnapshot,
11937 ) -> Option<DisplayRow> {
11938 self.highlighted_rows
11939 .values()
11940 .flat_map(|highlighted_rows| highlighted_rows.iter())
11941 .filter_map(|highlight| {
11942 if highlight.should_autoscroll {
11943 Some(highlight.range.start.to_display_point(snapshot).row())
11944 } else {
11945 None
11946 }
11947 })
11948 .min()
11949 }
11950
11951 pub fn set_search_within_ranges(
11952 &mut self,
11953 ranges: &[Range<Anchor>],
11954 cx: &mut ViewContext<Self>,
11955 ) {
11956 self.highlight_background::<SearchWithinRange>(
11957 ranges,
11958 |colors| colors.editor_document_highlight_read_background,
11959 cx,
11960 )
11961 }
11962
11963 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11964 self.breadcrumb_header = Some(new_header);
11965 }
11966
11967 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11968 self.clear_background_highlights::<SearchWithinRange>(cx);
11969 }
11970
11971 pub fn highlight_background<T: 'static>(
11972 &mut self,
11973 ranges: &[Range<Anchor>],
11974 color_fetcher: fn(&ThemeColors) -> Hsla,
11975 cx: &mut ViewContext<Self>,
11976 ) {
11977 self.background_highlights
11978 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11979 self.scrollbar_marker_state.dirty = true;
11980 cx.notify();
11981 }
11982
11983 pub fn clear_background_highlights<T: 'static>(
11984 &mut self,
11985 cx: &mut ViewContext<Self>,
11986 ) -> Option<BackgroundHighlight> {
11987 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11988 if !text_highlights.1.is_empty() {
11989 self.scrollbar_marker_state.dirty = true;
11990 cx.notify();
11991 }
11992 Some(text_highlights)
11993 }
11994
11995 pub fn highlight_gutter<T: 'static>(
11996 &mut self,
11997 ranges: &[Range<Anchor>],
11998 color_fetcher: fn(&AppContext) -> Hsla,
11999 cx: &mut ViewContext<Self>,
12000 ) {
12001 self.gutter_highlights
12002 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12003 cx.notify();
12004 }
12005
12006 pub fn clear_gutter_highlights<T: 'static>(
12007 &mut self,
12008 cx: &mut ViewContext<Self>,
12009 ) -> Option<GutterHighlight> {
12010 cx.notify();
12011 self.gutter_highlights.remove(&TypeId::of::<T>())
12012 }
12013
12014 #[cfg(feature = "test-support")]
12015 pub fn all_text_background_highlights(
12016 &mut self,
12017 cx: &mut ViewContext<Self>,
12018 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12019 let snapshot = self.snapshot(cx);
12020 let buffer = &snapshot.buffer_snapshot;
12021 let start = buffer.anchor_before(0);
12022 let end = buffer.anchor_after(buffer.len());
12023 let theme = cx.theme().colors();
12024 self.background_highlights_in_range(start..end, &snapshot, theme)
12025 }
12026
12027 #[cfg(feature = "test-support")]
12028 pub fn search_background_highlights(
12029 &mut self,
12030 cx: &mut ViewContext<Self>,
12031 ) -> Vec<Range<Point>> {
12032 let snapshot = self.buffer().read(cx).snapshot(cx);
12033
12034 let highlights = self
12035 .background_highlights
12036 .get(&TypeId::of::<items::BufferSearchHighlights>());
12037
12038 if let Some((_color, ranges)) = highlights {
12039 ranges
12040 .iter()
12041 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12042 .collect_vec()
12043 } else {
12044 vec![]
12045 }
12046 }
12047
12048 fn document_highlights_for_position<'a>(
12049 &'a self,
12050 position: Anchor,
12051 buffer: &'a MultiBufferSnapshot,
12052 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12053 let read_highlights = self
12054 .background_highlights
12055 .get(&TypeId::of::<DocumentHighlightRead>())
12056 .map(|h| &h.1);
12057 let write_highlights = self
12058 .background_highlights
12059 .get(&TypeId::of::<DocumentHighlightWrite>())
12060 .map(|h| &h.1);
12061 let left_position = position.bias_left(buffer);
12062 let right_position = position.bias_right(buffer);
12063 read_highlights
12064 .into_iter()
12065 .chain(write_highlights)
12066 .flat_map(move |ranges| {
12067 let start_ix = match ranges.binary_search_by(|probe| {
12068 let cmp = probe.end.cmp(&left_position, buffer);
12069 if cmp.is_ge() {
12070 Ordering::Greater
12071 } else {
12072 Ordering::Less
12073 }
12074 }) {
12075 Ok(i) | Err(i) => i,
12076 };
12077
12078 ranges[start_ix..]
12079 .iter()
12080 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12081 })
12082 }
12083
12084 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12085 self.background_highlights
12086 .get(&TypeId::of::<T>())
12087 .map_or(false, |(_, highlights)| !highlights.is_empty())
12088 }
12089
12090 pub fn background_highlights_in_range(
12091 &self,
12092 search_range: Range<Anchor>,
12093 display_snapshot: &DisplaySnapshot,
12094 theme: &ThemeColors,
12095 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12096 let mut results = Vec::new();
12097 for (color_fetcher, ranges) in self.background_highlights.values() {
12098 let color = color_fetcher(theme);
12099 let start_ix = match ranges.binary_search_by(|probe| {
12100 let cmp = probe
12101 .end
12102 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12103 if cmp.is_gt() {
12104 Ordering::Greater
12105 } else {
12106 Ordering::Less
12107 }
12108 }) {
12109 Ok(i) | Err(i) => i,
12110 };
12111 for range in &ranges[start_ix..] {
12112 if range
12113 .start
12114 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12115 .is_ge()
12116 {
12117 break;
12118 }
12119
12120 let start = range.start.to_display_point(display_snapshot);
12121 let end = range.end.to_display_point(display_snapshot);
12122 results.push((start..end, color))
12123 }
12124 }
12125 results
12126 }
12127
12128 pub fn background_highlight_row_ranges<T: 'static>(
12129 &self,
12130 search_range: Range<Anchor>,
12131 display_snapshot: &DisplaySnapshot,
12132 count: usize,
12133 ) -> Vec<RangeInclusive<DisplayPoint>> {
12134 let mut results = Vec::new();
12135 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12136 return vec![];
12137 };
12138
12139 let start_ix = match ranges.binary_search_by(|probe| {
12140 let cmp = probe
12141 .end
12142 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12143 if cmp.is_gt() {
12144 Ordering::Greater
12145 } else {
12146 Ordering::Less
12147 }
12148 }) {
12149 Ok(i) | Err(i) => i,
12150 };
12151 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12152 if let (Some(start_display), Some(end_display)) = (start, end) {
12153 results.push(
12154 start_display.to_display_point(display_snapshot)
12155 ..=end_display.to_display_point(display_snapshot),
12156 );
12157 }
12158 };
12159 let mut start_row: Option<Point> = None;
12160 let mut end_row: Option<Point> = None;
12161 if ranges.len() > count {
12162 return Vec::new();
12163 }
12164 for range in &ranges[start_ix..] {
12165 if range
12166 .start
12167 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12168 .is_ge()
12169 {
12170 break;
12171 }
12172 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12173 if let Some(current_row) = &end_row {
12174 if end.row == current_row.row {
12175 continue;
12176 }
12177 }
12178 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12179 if start_row.is_none() {
12180 assert_eq!(end_row, None);
12181 start_row = Some(start);
12182 end_row = Some(end);
12183 continue;
12184 }
12185 if let Some(current_end) = end_row.as_mut() {
12186 if start.row > current_end.row + 1 {
12187 push_region(start_row, end_row);
12188 start_row = Some(start);
12189 end_row = Some(end);
12190 } else {
12191 // Merge two hunks.
12192 *current_end = end;
12193 }
12194 } else {
12195 unreachable!();
12196 }
12197 }
12198 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12199 push_region(start_row, end_row);
12200 results
12201 }
12202
12203 pub fn gutter_highlights_in_range(
12204 &self,
12205 search_range: Range<Anchor>,
12206 display_snapshot: &DisplaySnapshot,
12207 cx: &AppContext,
12208 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12209 let mut results = Vec::new();
12210 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12211 let color = color_fetcher(cx);
12212 let start_ix = match ranges.binary_search_by(|probe| {
12213 let cmp = probe
12214 .end
12215 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12216 if cmp.is_gt() {
12217 Ordering::Greater
12218 } else {
12219 Ordering::Less
12220 }
12221 }) {
12222 Ok(i) | Err(i) => i,
12223 };
12224 for range in &ranges[start_ix..] {
12225 if range
12226 .start
12227 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12228 .is_ge()
12229 {
12230 break;
12231 }
12232
12233 let start = range.start.to_display_point(display_snapshot);
12234 let end = range.end.to_display_point(display_snapshot);
12235 results.push((start..end, color))
12236 }
12237 }
12238 results
12239 }
12240
12241 /// Get the text ranges corresponding to the redaction query
12242 pub fn redacted_ranges(
12243 &self,
12244 search_range: Range<Anchor>,
12245 display_snapshot: &DisplaySnapshot,
12246 cx: &WindowContext,
12247 ) -> Vec<Range<DisplayPoint>> {
12248 display_snapshot
12249 .buffer_snapshot
12250 .redacted_ranges(search_range, |file| {
12251 if let Some(file) = file {
12252 file.is_private()
12253 && EditorSettings::get(
12254 Some(SettingsLocation {
12255 worktree_id: file.worktree_id(cx),
12256 path: file.path().as_ref(),
12257 }),
12258 cx,
12259 )
12260 .redact_private_values
12261 } else {
12262 false
12263 }
12264 })
12265 .map(|range| {
12266 range.start.to_display_point(display_snapshot)
12267 ..range.end.to_display_point(display_snapshot)
12268 })
12269 .collect()
12270 }
12271
12272 pub fn highlight_text<T: 'static>(
12273 &mut self,
12274 ranges: Vec<Range<Anchor>>,
12275 style: HighlightStyle,
12276 cx: &mut ViewContext<Self>,
12277 ) {
12278 self.display_map.update(cx, |map, _| {
12279 map.highlight_text(TypeId::of::<T>(), ranges, style)
12280 });
12281 cx.notify();
12282 }
12283
12284 pub(crate) fn highlight_inlays<T: 'static>(
12285 &mut self,
12286 highlights: Vec<InlayHighlight>,
12287 style: HighlightStyle,
12288 cx: &mut ViewContext<Self>,
12289 ) {
12290 self.display_map.update(cx, |map, _| {
12291 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12292 });
12293 cx.notify();
12294 }
12295
12296 pub fn text_highlights<'a, T: 'static>(
12297 &'a self,
12298 cx: &'a AppContext,
12299 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12300 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12301 }
12302
12303 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12304 let cleared = self
12305 .display_map
12306 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12307 if cleared {
12308 cx.notify();
12309 }
12310 }
12311
12312 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12313 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12314 && self.focus_handle.is_focused(cx)
12315 }
12316
12317 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12318 self.show_cursor_when_unfocused = is_enabled;
12319 cx.notify();
12320 }
12321
12322 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12323 cx.notify();
12324 }
12325
12326 fn on_buffer_event(
12327 &mut self,
12328 multibuffer: Model<MultiBuffer>,
12329 event: &multi_buffer::Event,
12330 cx: &mut ViewContext<Self>,
12331 ) {
12332 match event {
12333 multi_buffer::Event::Edited {
12334 singleton_buffer_edited,
12335 } => {
12336 self.scrollbar_marker_state.dirty = true;
12337 self.active_indent_guides_state.dirty = true;
12338 self.refresh_active_diagnostics(cx);
12339 self.refresh_code_actions(cx);
12340 if self.has_active_inline_completion(cx) {
12341 self.update_visible_inline_completion(cx);
12342 }
12343 cx.emit(EditorEvent::BufferEdited);
12344 cx.emit(SearchEvent::MatchesInvalidated);
12345 if *singleton_buffer_edited {
12346 if let Some(project) = &self.project {
12347 let project = project.read(cx);
12348 #[allow(clippy::mutable_key_type)]
12349 let languages_affected = multibuffer
12350 .read(cx)
12351 .all_buffers()
12352 .into_iter()
12353 .filter_map(|buffer| {
12354 let buffer = buffer.read(cx);
12355 let language = buffer.language()?;
12356 if project.is_local()
12357 && project.language_servers_for_buffer(buffer, cx).count() == 0
12358 {
12359 None
12360 } else {
12361 Some(language)
12362 }
12363 })
12364 .cloned()
12365 .collect::<HashSet<_>>();
12366 if !languages_affected.is_empty() {
12367 self.refresh_inlay_hints(
12368 InlayHintRefreshReason::BufferEdited(languages_affected),
12369 cx,
12370 );
12371 }
12372 }
12373 }
12374
12375 let Some(project) = &self.project else { return };
12376 let (telemetry, is_via_ssh) = {
12377 let project = project.read(cx);
12378 let telemetry = project.client().telemetry().clone();
12379 let is_via_ssh = project.is_via_ssh();
12380 (telemetry, is_via_ssh)
12381 };
12382 refresh_linked_ranges(self, cx);
12383 telemetry.log_edit_event("editor", is_via_ssh);
12384 }
12385 multi_buffer::Event::ExcerptsAdded {
12386 buffer,
12387 predecessor,
12388 excerpts,
12389 } => {
12390 self.tasks_update_task = Some(self.refresh_runnables(cx));
12391 cx.emit(EditorEvent::ExcerptsAdded {
12392 buffer: buffer.clone(),
12393 predecessor: *predecessor,
12394 excerpts: excerpts.clone(),
12395 });
12396 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12397 }
12398 multi_buffer::Event::ExcerptsRemoved { ids } => {
12399 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12400 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12401 }
12402 multi_buffer::Event::ExcerptsEdited { ids } => {
12403 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12404 }
12405 multi_buffer::Event::ExcerptsExpanded { ids } => {
12406 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12407 }
12408 multi_buffer::Event::Reparsed(buffer_id) => {
12409 self.tasks_update_task = Some(self.refresh_runnables(cx));
12410
12411 cx.emit(EditorEvent::Reparsed(*buffer_id));
12412 }
12413 multi_buffer::Event::LanguageChanged(buffer_id) => {
12414 linked_editing_ranges::refresh_linked_ranges(self, cx);
12415 cx.emit(EditorEvent::Reparsed(*buffer_id));
12416 cx.notify();
12417 }
12418 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12419 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12420 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12421 cx.emit(EditorEvent::TitleChanged)
12422 }
12423 multi_buffer::Event::DiffBaseChanged => {
12424 self.scrollbar_marker_state.dirty = true;
12425 cx.emit(EditorEvent::DiffBaseChanged);
12426 cx.notify();
12427 }
12428 multi_buffer::Event::DiffUpdated { buffer } => {
12429 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12430 cx.notify();
12431 }
12432 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12433 multi_buffer::Event::DiagnosticsUpdated => {
12434 self.refresh_active_diagnostics(cx);
12435 self.scrollbar_marker_state.dirty = true;
12436 cx.notify();
12437 }
12438 _ => {}
12439 };
12440 }
12441
12442 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12443 cx.notify();
12444 }
12445
12446 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12447 self.tasks_update_task = Some(self.refresh_runnables(cx));
12448 self.refresh_inline_completion(true, false, cx);
12449 self.refresh_inlay_hints(
12450 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12451 self.selections.newest_anchor().head(),
12452 &self.buffer.read(cx).snapshot(cx),
12453 cx,
12454 )),
12455 cx,
12456 );
12457
12458 let old_cursor_shape = self.cursor_shape;
12459
12460 {
12461 let editor_settings = EditorSettings::get_global(cx);
12462 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12463 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12464 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12465 }
12466
12467 if old_cursor_shape != self.cursor_shape {
12468 cx.emit(EditorEvent::CursorShapeChanged);
12469 }
12470
12471 let project_settings = ProjectSettings::get_global(cx);
12472 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12473
12474 if self.mode == EditorMode::Full {
12475 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12476 if self.git_blame_inline_enabled != inline_blame_enabled {
12477 self.toggle_git_blame_inline_internal(false, cx);
12478 }
12479 }
12480
12481 cx.notify();
12482 }
12483
12484 pub fn set_searchable(&mut self, searchable: bool) {
12485 self.searchable = searchable;
12486 }
12487
12488 pub fn searchable(&self) -> bool {
12489 self.searchable
12490 }
12491
12492 fn open_proposed_changes_editor(
12493 &mut self,
12494 _: &OpenProposedChangesEditor,
12495 cx: &mut ViewContext<Self>,
12496 ) {
12497 let Some(workspace) = self.workspace() else {
12498 cx.propagate();
12499 return;
12500 };
12501
12502 let selections = self.selections.all::<usize>(cx);
12503 let buffer = self.buffer.read(cx);
12504 let mut new_selections_by_buffer = HashMap::default();
12505 for selection in selections {
12506 for (buffer, range, _) in
12507 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12508 {
12509 let mut range = range.to_point(buffer.read(cx));
12510 range.start.column = 0;
12511 range.end.column = buffer.read(cx).line_len(range.end.row);
12512 new_selections_by_buffer
12513 .entry(buffer)
12514 .or_insert(Vec::new())
12515 .push(range)
12516 }
12517 }
12518
12519 let proposed_changes_buffers = new_selections_by_buffer
12520 .into_iter()
12521 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12522 .collect::<Vec<_>>();
12523 let proposed_changes_editor = cx.new_view(|cx| {
12524 ProposedChangesEditor::new(
12525 "Proposed changes",
12526 proposed_changes_buffers,
12527 self.project.clone(),
12528 cx,
12529 )
12530 });
12531
12532 cx.window_context().defer(move |cx| {
12533 workspace.update(cx, |workspace, cx| {
12534 workspace.active_pane().update(cx, |pane, cx| {
12535 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12536 });
12537 });
12538 });
12539 }
12540
12541 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12542 self.open_excerpts_common(true, cx)
12543 }
12544
12545 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12546 self.open_excerpts_common(false, cx)
12547 }
12548
12549 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
12550 let selections = self.selections.all::<usize>(cx);
12551 let buffer = self.buffer.read(cx);
12552 if buffer.is_singleton() {
12553 cx.propagate();
12554 return;
12555 }
12556
12557 let Some(workspace) = self.workspace() else {
12558 cx.propagate();
12559 return;
12560 };
12561
12562 let mut new_selections_by_buffer = HashMap::default();
12563 for selection in selections {
12564 for (mut buffer_handle, mut range, _) in
12565 buffer.range_to_buffer_ranges(selection.range(), cx)
12566 {
12567 // When editing branch buffers, jump to the corresponding location
12568 // in their base buffer.
12569 let buffer = buffer_handle.read(cx);
12570 if let Some(base_buffer) = buffer.diff_base_buffer() {
12571 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12572 buffer_handle = base_buffer;
12573 }
12574
12575 if selection.reversed {
12576 mem::swap(&mut range.start, &mut range.end);
12577 }
12578 new_selections_by_buffer
12579 .entry(buffer_handle)
12580 .or_insert(Vec::new())
12581 .push(range)
12582 }
12583 }
12584
12585 // We defer the pane interaction because we ourselves are a workspace item
12586 // and activating a new item causes the pane to call a method on us reentrantly,
12587 // which panics if we're on the stack.
12588 cx.window_context().defer(move |cx| {
12589 workspace.update(cx, |workspace, cx| {
12590 let pane = if split {
12591 workspace.adjacent_pane(cx)
12592 } else {
12593 workspace.active_pane().clone()
12594 };
12595
12596 for (buffer, ranges) in new_selections_by_buffer {
12597 let editor =
12598 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12599 editor.update(cx, |editor, cx| {
12600 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
12601 s.select_ranges(ranges);
12602 });
12603 });
12604 }
12605 })
12606 });
12607 }
12608
12609 fn jump(
12610 &mut self,
12611 path: ProjectPath,
12612 position: Point,
12613 anchor: language::Anchor,
12614 offset_from_top: u32,
12615 cx: &mut ViewContext<Self>,
12616 ) {
12617 let workspace = self.workspace();
12618 cx.spawn(|_, mut cx| async move {
12619 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
12620 let editor = workspace.update(&mut cx, |workspace, cx| {
12621 // Reset the preview item id before opening the new item
12622 workspace.active_pane().update(cx, |pane, cx| {
12623 pane.set_preview_item_id(None, cx);
12624 });
12625 workspace.open_path_preview(path, None, true, true, cx)
12626 })?;
12627 let editor = editor
12628 .await?
12629 .downcast::<Editor>()
12630 .ok_or_else(|| anyhow!("opened item was not an editor"))?
12631 .downgrade();
12632 editor.update(&mut cx, |editor, cx| {
12633 let buffer = editor
12634 .buffer()
12635 .read(cx)
12636 .as_singleton()
12637 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
12638 let buffer = buffer.read(cx);
12639 let cursor = if buffer.can_resolve(&anchor) {
12640 language::ToPoint::to_point(&anchor, buffer)
12641 } else {
12642 buffer.clip_point(position, Bias::Left)
12643 };
12644
12645 let nav_history = editor.nav_history.take();
12646 editor.change_selections(
12647 Some(Autoscroll::top_relative(offset_from_top as usize)),
12648 cx,
12649 |s| {
12650 s.select_ranges([cursor..cursor]);
12651 },
12652 );
12653 editor.nav_history = nav_history;
12654
12655 anyhow::Ok(())
12656 })??;
12657
12658 anyhow::Ok(())
12659 })
12660 .detach_and_log_err(cx);
12661 }
12662
12663 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12664 let snapshot = self.buffer.read(cx).read(cx);
12665 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12666 Some(
12667 ranges
12668 .iter()
12669 .map(move |range| {
12670 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12671 })
12672 .collect(),
12673 )
12674 }
12675
12676 fn selection_replacement_ranges(
12677 &self,
12678 range: Range<OffsetUtf16>,
12679 cx: &mut AppContext,
12680 ) -> Vec<Range<OffsetUtf16>> {
12681 let selections = self.selections.all::<OffsetUtf16>(cx);
12682 let newest_selection = selections
12683 .iter()
12684 .max_by_key(|selection| selection.id)
12685 .unwrap();
12686 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12687 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12688 let snapshot = self.buffer.read(cx).read(cx);
12689 selections
12690 .into_iter()
12691 .map(|mut selection| {
12692 selection.start.0 =
12693 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12694 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12695 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12696 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12697 })
12698 .collect()
12699 }
12700
12701 fn report_editor_event(
12702 &self,
12703 operation: &'static str,
12704 file_extension: Option<String>,
12705 cx: &AppContext,
12706 ) {
12707 if cfg!(any(test, feature = "test-support")) {
12708 return;
12709 }
12710
12711 let Some(project) = &self.project else { return };
12712
12713 // If None, we are in a file without an extension
12714 let file = self
12715 .buffer
12716 .read(cx)
12717 .as_singleton()
12718 .and_then(|b| b.read(cx).file());
12719 let file_extension = file_extension.or(file
12720 .as_ref()
12721 .and_then(|file| Path::new(file.file_name(cx)).extension())
12722 .and_then(|e| e.to_str())
12723 .map(|a| a.to_string()));
12724
12725 let vim_mode = cx
12726 .global::<SettingsStore>()
12727 .raw_user_settings()
12728 .get("vim_mode")
12729 == Some(&serde_json::Value::Bool(true));
12730
12731 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12732 == language::language_settings::InlineCompletionProvider::Copilot;
12733 let copilot_enabled_for_language = self
12734 .buffer
12735 .read(cx)
12736 .settings_at(0, cx)
12737 .show_inline_completions;
12738
12739 let project = project.read(cx);
12740 let telemetry = project.client().telemetry().clone();
12741 telemetry.report_editor_event(
12742 file_extension,
12743 vim_mode,
12744 operation,
12745 copilot_enabled,
12746 copilot_enabled_for_language,
12747 project.is_via_ssh(),
12748 )
12749 }
12750
12751 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12752 /// with each line being an array of {text, highlight} objects.
12753 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12754 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12755 return;
12756 };
12757
12758 #[derive(Serialize)]
12759 struct Chunk<'a> {
12760 text: String,
12761 highlight: Option<&'a str>,
12762 }
12763
12764 let snapshot = buffer.read(cx).snapshot();
12765 let range = self
12766 .selected_text_range(false, cx)
12767 .and_then(|selection| {
12768 if selection.range.is_empty() {
12769 None
12770 } else {
12771 Some(selection.range)
12772 }
12773 })
12774 .unwrap_or_else(|| 0..snapshot.len());
12775
12776 let chunks = snapshot.chunks(range, true);
12777 let mut lines = Vec::new();
12778 let mut line: VecDeque<Chunk> = VecDeque::new();
12779
12780 let Some(style) = self.style.as_ref() else {
12781 return;
12782 };
12783
12784 for chunk in chunks {
12785 let highlight = chunk
12786 .syntax_highlight_id
12787 .and_then(|id| id.name(&style.syntax));
12788 let mut chunk_lines = chunk.text.split('\n').peekable();
12789 while let Some(text) = chunk_lines.next() {
12790 let mut merged_with_last_token = false;
12791 if let Some(last_token) = line.back_mut() {
12792 if last_token.highlight == highlight {
12793 last_token.text.push_str(text);
12794 merged_with_last_token = true;
12795 }
12796 }
12797
12798 if !merged_with_last_token {
12799 line.push_back(Chunk {
12800 text: text.into(),
12801 highlight,
12802 });
12803 }
12804
12805 if chunk_lines.peek().is_some() {
12806 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12807 line.pop_front();
12808 }
12809 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12810 line.pop_back();
12811 }
12812
12813 lines.push(mem::take(&mut line));
12814 }
12815 }
12816 }
12817
12818 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12819 return;
12820 };
12821 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12822 }
12823
12824 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12825 &self.inlay_hint_cache
12826 }
12827
12828 pub fn replay_insert_event(
12829 &mut self,
12830 text: &str,
12831 relative_utf16_range: Option<Range<isize>>,
12832 cx: &mut ViewContext<Self>,
12833 ) {
12834 if !self.input_enabled {
12835 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12836 return;
12837 }
12838 if let Some(relative_utf16_range) = relative_utf16_range {
12839 let selections = self.selections.all::<OffsetUtf16>(cx);
12840 self.change_selections(None, cx, |s| {
12841 let new_ranges = selections.into_iter().map(|range| {
12842 let start = OffsetUtf16(
12843 range
12844 .head()
12845 .0
12846 .saturating_add_signed(relative_utf16_range.start),
12847 );
12848 let end = OffsetUtf16(
12849 range
12850 .head()
12851 .0
12852 .saturating_add_signed(relative_utf16_range.end),
12853 );
12854 start..end
12855 });
12856 s.select_ranges(new_ranges);
12857 });
12858 }
12859
12860 self.handle_input(text, cx);
12861 }
12862
12863 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12864 let Some(provider) = self.semantics_provider.as_ref() else {
12865 return false;
12866 };
12867
12868 let mut supports = false;
12869 self.buffer().read(cx).for_each_buffer(|buffer| {
12870 supports |= provider.supports_inlay_hints(buffer, cx);
12871 });
12872 supports
12873 }
12874
12875 pub fn focus(&self, cx: &mut WindowContext) {
12876 cx.focus(&self.focus_handle)
12877 }
12878
12879 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12880 self.focus_handle.is_focused(cx)
12881 }
12882
12883 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12884 cx.emit(EditorEvent::Focused);
12885
12886 if let Some(descendant) = self
12887 .last_focused_descendant
12888 .take()
12889 .and_then(|descendant| descendant.upgrade())
12890 {
12891 cx.focus(&descendant);
12892 } else {
12893 if let Some(blame) = self.blame.as_ref() {
12894 blame.update(cx, GitBlame::focus)
12895 }
12896
12897 self.blink_manager.update(cx, BlinkManager::enable);
12898 self.show_cursor_names(cx);
12899 self.buffer.update(cx, |buffer, cx| {
12900 buffer.finalize_last_transaction(cx);
12901 if self.leader_peer_id.is_none() {
12902 buffer.set_active_selections(
12903 &self.selections.disjoint_anchors(),
12904 self.selections.line_mode,
12905 self.cursor_shape,
12906 cx,
12907 );
12908 }
12909 });
12910 }
12911 }
12912
12913 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12914 cx.emit(EditorEvent::FocusedIn)
12915 }
12916
12917 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12918 if event.blurred != self.focus_handle {
12919 self.last_focused_descendant = Some(event.blurred);
12920 }
12921 }
12922
12923 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12924 self.blink_manager.update(cx, BlinkManager::disable);
12925 self.buffer
12926 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12927
12928 if let Some(blame) = self.blame.as_ref() {
12929 blame.update(cx, GitBlame::blur)
12930 }
12931 if !self.hover_state.focused(cx) {
12932 hide_hover(self, cx);
12933 }
12934
12935 self.hide_context_menu(cx);
12936 cx.emit(EditorEvent::Blurred);
12937 cx.notify();
12938 }
12939
12940 pub fn register_action<A: Action>(
12941 &mut self,
12942 listener: impl Fn(&A, &mut WindowContext) + 'static,
12943 ) -> Subscription {
12944 let id = self.next_editor_action_id.post_inc();
12945 let listener = Arc::new(listener);
12946 self.editor_actions.borrow_mut().insert(
12947 id,
12948 Box::new(move |cx| {
12949 let cx = cx.window_context();
12950 let listener = listener.clone();
12951 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12952 let action = action.downcast_ref().unwrap();
12953 if phase == DispatchPhase::Bubble {
12954 listener(action, cx)
12955 }
12956 })
12957 }),
12958 );
12959
12960 let editor_actions = self.editor_actions.clone();
12961 Subscription::new(move || {
12962 editor_actions.borrow_mut().remove(&id);
12963 })
12964 }
12965
12966 pub fn file_header_size(&self) -> u32 {
12967 FILE_HEADER_HEIGHT
12968 }
12969
12970 pub fn revert(
12971 &mut self,
12972 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12973 cx: &mut ViewContext<Self>,
12974 ) {
12975 self.buffer().update(cx, |multi_buffer, cx| {
12976 for (buffer_id, changes) in revert_changes {
12977 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12978 buffer.update(cx, |buffer, cx| {
12979 buffer.edit(
12980 changes.into_iter().map(|(range, text)| {
12981 (range, text.to_string().map(Arc::<str>::from))
12982 }),
12983 None,
12984 cx,
12985 );
12986 });
12987 }
12988 }
12989 });
12990 self.change_selections(None, cx, |selections| selections.refresh());
12991 }
12992
12993 pub fn to_pixel_point(
12994 &mut self,
12995 source: multi_buffer::Anchor,
12996 editor_snapshot: &EditorSnapshot,
12997 cx: &mut ViewContext<Self>,
12998 ) -> Option<gpui::Point<Pixels>> {
12999 let source_point = source.to_display_point(editor_snapshot);
13000 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13001 }
13002
13003 pub fn display_to_pixel_point(
13004 &mut self,
13005 source: DisplayPoint,
13006 editor_snapshot: &EditorSnapshot,
13007 cx: &mut ViewContext<Self>,
13008 ) -> Option<gpui::Point<Pixels>> {
13009 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13010 let text_layout_details = self.text_layout_details(cx);
13011 let scroll_top = text_layout_details
13012 .scroll_anchor
13013 .scroll_position(editor_snapshot)
13014 .y;
13015
13016 if source.row().as_f32() < scroll_top.floor() {
13017 return None;
13018 }
13019 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13020 let source_y = line_height * (source.row().as_f32() - scroll_top);
13021 Some(gpui::Point::new(source_x, source_y))
13022 }
13023
13024 pub fn has_active_completions_menu(&self) -> bool {
13025 self.context_menu.read().as_ref().map_or(false, |menu| {
13026 menu.visible() && matches!(menu, ContextMenu::Completions(_))
13027 })
13028 }
13029
13030 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13031 self.addons
13032 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13033 }
13034
13035 pub fn unregister_addon<T: Addon>(&mut self) {
13036 self.addons.remove(&std::any::TypeId::of::<T>());
13037 }
13038
13039 pub fn addon<T: Addon>(&self) -> Option<&T> {
13040 let type_id = std::any::TypeId::of::<T>();
13041 self.addons
13042 .get(&type_id)
13043 .and_then(|item| item.to_any().downcast_ref::<T>())
13044 }
13045}
13046
13047fn len_with_expanded_tabs(offset: usize, comment_prefix: &str, tab_size: NonZeroU32) -> usize {
13048 let tab_size = tab_size.get() as usize;
13049 let mut width = offset;
13050
13051 for c in comment_prefix.chars() {
13052 width += if c == '\t' {
13053 tab_size - (width % tab_size)
13054 } else {
13055 1
13056 };
13057 }
13058
13059 width - offset
13060}
13061
13062#[cfg(test)]
13063mod tests {
13064 use super::*;
13065
13066 #[test]
13067 fn test_string_size_with_expanded_tabs() {
13068 let nz = |val| NonZeroU32::new(val).unwrap();
13069 assert_eq!(len_with_expanded_tabs(0, "", nz(4)), 0);
13070 assert_eq!(len_with_expanded_tabs(0, "hello", nz(4)), 5);
13071 assert_eq!(len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13072 assert_eq!(len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13073 assert_eq!(len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13074 assert_eq!(len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13075 assert_eq!(len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13076 assert_eq!(len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13077 }
13078}
13079
13080fn wrap_with_prefix(
13081 line_prefix: String,
13082 unwrapped_text: String,
13083 wrap_column: usize,
13084 tab_size: NonZeroU32,
13085) -> String {
13086 let line_prefix_display_len = len_with_expanded_tabs(0, &line_prefix, tab_size);
13087 let mut wrapped_text = String::new();
13088 let mut current_line = line_prefix.to_string();
13089 let prefix_extra_chars = line_prefix_display_len - line_prefix.len();
13090
13091 for word in unwrapped_text.split_whitespace() {
13092 if current_line.len() + prefix_extra_chars + word.len() >= wrap_column {
13093 wrapped_text.push_str(¤t_line);
13094 wrapped_text.push('\n');
13095 current_line.truncate(line_prefix.len());
13096 }
13097
13098 if current_line.len() > line_prefix.len() {
13099 current_line.push(' ');
13100 }
13101
13102 current_line.push_str(word);
13103 }
13104
13105 if !current_line.is_empty() {
13106 wrapped_text.push_str(¤t_line);
13107 }
13108 wrapped_text
13109}
13110
13111fn hunks_for_selections(
13112 multi_buffer_snapshot: &MultiBufferSnapshot,
13113 selections: &[Selection<Anchor>],
13114) -> Vec<MultiBufferDiffHunk> {
13115 let buffer_rows_for_selections = selections.iter().map(|selection| {
13116 let head = selection.head();
13117 let tail = selection.tail();
13118 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
13119 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
13120 if start > end {
13121 end..start
13122 } else {
13123 start..end
13124 }
13125 });
13126
13127 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
13128}
13129
13130pub fn hunks_for_rows(
13131 rows: impl Iterator<Item = Range<MultiBufferRow>>,
13132 multi_buffer_snapshot: &MultiBufferSnapshot,
13133) -> Vec<MultiBufferDiffHunk> {
13134 let mut hunks = Vec::new();
13135 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13136 HashMap::default();
13137 for selected_multi_buffer_rows in rows {
13138 let query_rows =
13139 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
13140 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
13141 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13142 // when the caret is just above or just below the deleted hunk.
13143 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13144 let related_to_selection = if allow_adjacent {
13145 hunk.row_range.overlaps(&query_rows)
13146 || hunk.row_range.start == query_rows.end
13147 || hunk.row_range.end == query_rows.start
13148 } else {
13149 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
13150 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
13151 hunk.row_range.overlaps(&selected_multi_buffer_rows)
13152 || selected_multi_buffer_rows.end == hunk.row_range.start
13153 };
13154 if related_to_selection {
13155 if !processed_buffer_rows
13156 .entry(hunk.buffer_id)
13157 .or_default()
13158 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13159 {
13160 continue;
13161 }
13162 hunks.push(hunk);
13163 }
13164 }
13165 }
13166
13167 hunks
13168}
13169
13170pub trait CollaborationHub {
13171 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13172 fn user_participant_indices<'a>(
13173 &self,
13174 cx: &'a AppContext,
13175 ) -> &'a HashMap<u64, ParticipantIndex>;
13176 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13177}
13178
13179impl CollaborationHub for Model<Project> {
13180 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13181 self.read(cx).collaborators()
13182 }
13183
13184 fn user_participant_indices<'a>(
13185 &self,
13186 cx: &'a AppContext,
13187 ) -> &'a HashMap<u64, ParticipantIndex> {
13188 self.read(cx).user_store().read(cx).participant_indices()
13189 }
13190
13191 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13192 let this = self.read(cx);
13193 let user_ids = this.collaborators().values().map(|c| c.user_id);
13194 this.user_store().read_with(cx, |user_store, cx| {
13195 user_store.participant_names(user_ids, cx)
13196 })
13197 }
13198}
13199
13200pub trait SemanticsProvider {
13201 fn hover(
13202 &self,
13203 buffer: &Model<Buffer>,
13204 position: text::Anchor,
13205 cx: &mut AppContext,
13206 ) -> Option<Task<Vec<project::Hover>>>;
13207
13208 fn inlay_hints(
13209 &self,
13210 buffer_handle: Model<Buffer>,
13211 range: Range<text::Anchor>,
13212 cx: &mut AppContext,
13213 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13214
13215 fn resolve_inlay_hint(
13216 &self,
13217 hint: InlayHint,
13218 buffer_handle: Model<Buffer>,
13219 server_id: LanguageServerId,
13220 cx: &mut AppContext,
13221 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13222
13223 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13224
13225 fn document_highlights(
13226 &self,
13227 buffer: &Model<Buffer>,
13228 position: text::Anchor,
13229 cx: &mut AppContext,
13230 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13231
13232 fn definitions(
13233 &self,
13234 buffer: &Model<Buffer>,
13235 position: text::Anchor,
13236 kind: GotoDefinitionKind,
13237 cx: &mut AppContext,
13238 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13239
13240 fn range_for_rename(
13241 &self,
13242 buffer: &Model<Buffer>,
13243 position: text::Anchor,
13244 cx: &mut AppContext,
13245 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13246
13247 fn perform_rename(
13248 &self,
13249 buffer: &Model<Buffer>,
13250 position: text::Anchor,
13251 new_name: String,
13252 cx: &mut AppContext,
13253 ) -> Option<Task<Result<ProjectTransaction>>>;
13254}
13255
13256pub trait CompletionProvider {
13257 fn completions(
13258 &self,
13259 buffer: &Model<Buffer>,
13260 buffer_position: text::Anchor,
13261 trigger: CompletionContext,
13262 cx: &mut ViewContext<Editor>,
13263 ) -> Task<Result<Vec<Completion>>>;
13264
13265 fn resolve_completions(
13266 &self,
13267 buffer: Model<Buffer>,
13268 completion_indices: Vec<usize>,
13269 completions: Arc<RwLock<Box<[Completion]>>>,
13270 cx: &mut ViewContext<Editor>,
13271 ) -> Task<Result<bool>>;
13272
13273 fn apply_additional_edits_for_completion(
13274 &self,
13275 buffer: Model<Buffer>,
13276 completion: Completion,
13277 push_to_history: bool,
13278 cx: &mut ViewContext<Editor>,
13279 ) -> Task<Result<Option<language::Transaction>>>;
13280
13281 fn is_completion_trigger(
13282 &self,
13283 buffer: &Model<Buffer>,
13284 position: language::Anchor,
13285 text: &str,
13286 trigger_in_words: bool,
13287 cx: &mut ViewContext<Editor>,
13288 ) -> bool;
13289
13290 fn sort_completions(&self) -> bool {
13291 true
13292 }
13293}
13294
13295pub trait CodeActionProvider {
13296 fn code_actions(
13297 &self,
13298 buffer: &Model<Buffer>,
13299 range: Range<text::Anchor>,
13300 cx: &mut WindowContext,
13301 ) -> Task<Result<Vec<CodeAction>>>;
13302
13303 fn apply_code_action(
13304 &self,
13305 buffer_handle: Model<Buffer>,
13306 action: CodeAction,
13307 excerpt_id: ExcerptId,
13308 push_to_history: bool,
13309 cx: &mut WindowContext,
13310 ) -> Task<Result<ProjectTransaction>>;
13311}
13312
13313impl CodeActionProvider for Model<Project> {
13314 fn code_actions(
13315 &self,
13316 buffer: &Model<Buffer>,
13317 range: Range<text::Anchor>,
13318 cx: &mut WindowContext,
13319 ) -> Task<Result<Vec<CodeAction>>> {
13320 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
13321 }
13322
13323 fn apply_code_action(
13324 &self,
13325 buffer_handle: Model<Buffer>,
13326 action: CodeAction,
13327 _excerpt_id: ExcerptId,
13328 push_to_history: bool,
13329 cx: &mut WindowContext,
13330 ) -> Task<Result<ProjectTransaction>> {
13331 self.update(cx, |project, cx| {
13332 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13333 })
13334 }
13335}
13336
13337fn snippet_completions(
13338 project: &Project,
13339 buffer: &Model<Buffer>,
13340 buffer_position: text::Anchor,
13341 cx: &mut AppContext,
13342) -> Vec<Completion> {
13343 let language = buffer.read(cx).language_at(buffer_position);
13344 let language_name = language.as_ref().map(|language| language.lsp_id());
13345 let snippet_store = project.snippets().read(cx);
13346 let snippets = snippet_store.snippets_for(language_name, cx);
13347
13348 if snippets.is_empty() {
13349 return vec![];
13350 }
13351 let snapshot = buffer.read(cx).text_snapshot();
13352 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13353
13354 let scope = language.map(|language| language.default_scope());
13355 let classifier = CharClassifier::new(scope).for_completion(true);
13356 let mut last_word = chars
13357 .take_while(|c| classifier.is_word(*c))
13358 .collect::<String>();
13359 last_word = last_word.chars().rev().collect();
13360 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13361 let to_lsp = |point: &text::Anchor| {
13362 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13363 point_to_lsp(end)
13364 };
13365 let lsp_end = to_lsp(&buffer_position);
13366 snippets
13367 .into_iter()
13368 .filter_map(|snippet| {
13369 let matching_prefix = snippet
13370 .prefix
13371 .iter()
13372 .find(|prefix| prefix.starts_with(&last_word))?;
13373 let start = as_offset - last_word.len();
13374 let start = snapshot.anchor_before(start);
13375 let range = start..buffer_position;
13376 let lsp_start = to_lsp(&start);
13377 let lsp_range = lsp::Range {
13378 start: lsp_start,
13379 end: lsp_end,
13380 };
13381 Some(Completion {
13382 old_range: range,
13383 new_text: snippet.body.clone(),
13384 label: CodeLabel {
13385 text: matching_prefix.clone(),
13386 runs: vec![],
13387 filter_range: 0..matching_prefix.len(),
13388 },
13389 server_id: LanguageServerId(usize::MAX),
13390 documentation: snippet.description.clone().map(Documentation::SingleLine),
13391 lsp_completion: lsp::CompletionItem {
13392 label: snippet.prefix.first().unwrap().clone(),
13393 kind: Some(CompletionItemKind::SNIPPET),
13394 label_details: snippet.description.as_ref().map(|description| {
13395 lsp::CompletionItemLabelDetails {
13396 detail: Some(description.clone()),
13397 description: None,
13398 }
13399 }),
13400 insert_text_format: Some(InsertTextFormat::SNIPPET),
13401 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13402 lsp::InsertReplaceEdit {
13403 new_text: snippet.body.clone(),
13404 insert: lsp_range,
13405 replace: lsp_range,
13406 },
13407 )),
13408 filter_text: Some(snippet.body.clone()),
13409 sort_text: Some(char::MAX.to_string()),
13410 ..Default::default()
13411 },
13412 confirm: None,
13413 })
13414 })
13415 .collect()
13416}
13417
13418impl CompletionProvider for Model<Project> {
13419 fn completions(
13420 &self,
13421 buffer: &Model<Buffer>,
13422 buffer_position: text::Anchor,
13423 options: CompletionContext,
13424 cx: &mut ViewContext<Editor>,
13425 ) -> Task<Result<Vec<Completion>>> {
13426 self.update(cx, |project, cx| {
13427 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13428 let project_completions = project.completions(buffer, buffer_position, options, cx);
13429 cx.background_executor().spawn(async move {
13430 let mut completions = project_completions.await?;
13431 //let snippets = snippets.into_iter().;
13432 completions.extend(snippets);
13433 Ok(completions)
13434 })
13435 })
13436 }
13437
13438 fn resolve_completions(
13439 &self,
13440 buffer: Model<Buffer>,
13441 completion_indices: Vec<usize>,
13442 completions: Arc<RwLock<Box<[Completion]>>>,
13443 cx: &mut ViewContext<Editor>,
13444 ) -> Task<Result<bool>> {
13445 self.update(cx, |project, cx| {
13446 project.resolve_completions(buffer, completion_indices, completions, cx)
13447 })
13448 }
13449
13450 fn apply_additional_edits_for_completion(
13451 &self,
13452 buffer: Model<Buffer>,
13453 completion: Completion,
13454 push_to_history: bool,
13455 cx: &mut ViewContext<Editor>,
13456 ) -> Task<Result<Option<language::Transaction>>> {
13457 self.update(cx, |project, cx| {
13458 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13459 })
13460 }
13461
13462 fn is_completion_trigger(
13463 &self,
13464 buffer: &Model<Buffer>,
13465 position: language::Anchor,
13466 text: &str,
13467 trigger_in_words: bool,
13468 cx: &mut ViewContext<Editor>,
13469 ) -> bool {
13470 if !EditorSettings::get_global(cx).show_completions_on_input {
13471 return false;
13472 }
13473
13474 let mut chars = text.chars();
13475 let char = if let Some(char) = chars.next() {
13476 char
13477 } else {
13478 return false;
13479 };
13480 if chars.next().is_some() {
13481 return false;
13482 }
13483
13484 let buffer = buffer.read(cx);
13485 let classifier = buffer
13486 .snapshot()
13487 .char_classifier_at(position)
13488 .for_completion(true);
13489 if trigger_in_words && classifier.is_word(char) {
13490 return true;
13491 }
13492
13493 buffer
13494 .completion_triggers()
13495 .iter()
13496 .any(|string| string == text)
13497 }
13498}
13499
13500impl SemanticsProvider for Model<Project> {
13501 fn hover(
13502 &self,
13503 buffer: &Model<Buffer>,
13504 position: text::Anchor,
13505 cx: &mut AppContext,
13506 ) -> Option<Task<Vec<project::Hover>>> {
13507 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13508 }
13509
13510 fn document_highlights(
13511 &self,
13512 buffer: &Model<Buffer>,
13513 position: text::Anchor,
13514 cx: &mut AppContext,
13515 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13516 Some(self.update(cx, |project, cx| {
13517 project.document_highlights(buffer, position, cx)
13518 }))
13519 }
13520
13521 fn definitions(
13522 &self,
13523 buffer: &Model<Buffer>,
13524 position: text::Anchor,
13525 kind: GotoDefinitionKind,
13526 cx: &mut AppContext,
13527 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13528 Some(self.update(cx, |project, cx| match kind {
13529 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13530 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13531 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13532 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13533 }))
13534 }
13535
13536 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13537 // TODO: make this work for remote projects
13538 self.read(cx)
13539 .language_servers_for_buffer(buffer.read(cx), cx)
13540 .any(
13541 |(_, server)| match server.capabilities().inlay_hint_provider {
13542 Some(lsp::OneOf::Left(enabled)) => enabled,
13543 Some(lsp::OneOf::Right(_)) => true,
13544 None => false,
13545 },
13546 )
13547 }
13548
13549 fn inlay_hints(
13550 &self,
13551 buffer_handle: Model<Buffer>,
13552 range: Range<text::Anchor>,
13553 cx: &mut AppContext,
13554 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13555 Some(self.update(cx, |project, cx| {
13556 project.inlay_hints(buffer_handle, range, cx)
13557 }))
13558 }
13559
13560 fn resolve_inlay_hint(
13561 &self,
13562 hint: InlayHint,
13563 buffer_handle: Model<Buffer>,
13564 server_id: LanguageServerId,
13565 cx: &mut AppContext,
13566 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13567 Some(self.update(cx, |project, cx| {
13568 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13569 }))
13570 }
13571
13572 fn range_for_rename(
13573 &self,
13574 buffer: &Model<Buffer>,
13575 position: text::Anchor,
13576 cx: &mut AppContext,
13577 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13578 Some(self.update(cx, |project, cx| {
13579 project.prepare_rename(buffer.clone(), position, cx)
13580 }))
13581 }
13582
13583 fn perform_rename(
13584 &self,
13585 buffer: &Model<Buffer>,
13586 position: text::Anchor,
13587 new_name: String,
13588 cx: &mut AppContext,
13589 ) -> Option<Task<Result<ProjectTransaction>>> {
13590 Some(self.update(cx, |project, cx| {
13591 project.perform_rename(buffer.clone(), position, new_name, cx)
13592 }))
13593 }
13594}
13595
13596fn inlay_hint_settings(
13597 location: Anchor,
13598 snapshot: &MultiBufferSnapshot,
13599 cx: &mut ViewContext<'_, Editor>,
13600) -> InlayHintSettings {
13601 let file = snapshot.file_at(location);
13602 let language = snapshot.language_at(location).map(|l| l.name());
13603 language_settings(language, file, cx).inlay_hints
13604}
13605
13606fn consume_contiguous_rows(
13607 contiguous_row_selections: &mut Vec<Selection<Point>>,
13608 selection: &Selection<Point>,
13609 display_map: &DisplaySnapshot,
13610 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
13611) -> (MultiBufferRow, MultiBufferRow) {
13612 contiguous_row_selections.push(selection.clone());
13613 let start_row = MultiBufferRow(selection.start.row);
13614 let mut end_row = ending_row(selection, display_map);
13615
13616 while let Some(next_selection) = selections.peek() {
13617 if next_selection.start.row <= end_row.0 {
13618 end_row = ending_row(next_selection, display_map);
13619 contiguous_row_selections.push(selections.next().unwrap().clone());
13620 } else {
13621 break;
13622 }
13623 }
13624 (start_row, end_row)
13625}
13626
13627fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13628 if next_selection.end.column > 0 || next_selection.is_empty() {
13629 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13630 } else {
13631 MultiBufferRow(next_selection.end.row)
13632 }
13633}
13634
13635impl EditorSnapshot {
13636 pub fn remote_selections_in_range<'a>(
13637 &'a self,
13638 range: &'a Range<Anchor>,
13639 collaboration_hub: &dyn CollaborationHub,
13640 cx: &'a AppContext,
13641 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13642 let participant_names = collaboration_hub.user_names(cx);
13643 let participant_indices = collaboration_hub.user_participant_indices(cx);
13644 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13645 let collaborators_by_replica_id = collaborators_by_peer_id
13646 .iter()
13647 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13648 .collect::<HashMap<_, _>>();
13649 self.buffer_snapshot
13650 .selections_in_range(range, false)
13651 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13652 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13653 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13654 let user_name = participant_names.get(&collaborator.user_id).cloned();
13655 Some(RemoteSelection {
13656 replica_id,
13657 selection,
13658 cursor_shape,
13659 line_mode,
13660 participant_index,
13661 peer_id: collaborator.peer_id,
13662 user_name,
13663 })
13664 })
13665 }
13666
13667 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13668 self.display_snapshot.buffer_snapshot.language_at(position)
13669 }
13670
13671 pub fn is_focused(&self) -> bool {
13672 self.is_focused
13673 }
13674
13675 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13676 self.placeholder_text.as_ref()
13677 }
13678
13679 pub fn scroll_position(&self) -> gpui::Point<f32> {
13680 self.scroll_anchor.scroll_position(&self.display_snapshot)
13681 }
13682
13683 fn gutter_dimensions(
13684 &self,
13685 font_id: FontId,
13686 font_size: Pixels,
13687 em_width: Pixels,
13688 em_advance: Pixels,
13689 max_line_number_width: Pixels,
13690 cx: &AppContext,
13691 ) -> GutterDimensions {
13692 if !self.show_gutter {
13693 return GutterDimensions::default();
13694 }
13695 let descent = cx.text_system().descent(font_id, font_size);
13696
13697 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13698 matches!(
13699 ProjectSettings::get_global(cx).git.git_gutter,
13700 Some(GitGutterSetting::TrackedFiles)
13701 )
13702 });
13703 let gutter_settings = EditorSettings::get_global(cx).gutter;
13704 let show_line_numbers = self
13705 .show_line_numbers
13706 .unwrap_or(gutter_settings.line_numbers);
13707 let line_gutter_width = if show_line_numbers {
13708 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13709 let min_width_for_number_on_gutter = em_advance * 4.0;
13710 max_line_number_width.max(min_width_for_number_on_gutter)
13711 } else {
13712 0.0.into()
13713 };
13714
13715 let show_code_actions = self
13716 .show_code_actions
13717 .unwrap_or(gutter_settings.code_actions);
13718
13719 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13720
13721 let git_blame_entries_width =
13722 self.git_blame_gutter_max_author_length
13723 .map(|max_author_length| {
13724 // Length of the author name, but also space for the commit hash,
13725 // the spacing and the timestamp.
13726 let max_char_count = max_author_length
13727 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13728 + 7 // length of commit sha
13729 + 14 // length of max relative timestamp ("60 minutes ago")
13730 + 4; // gaps and margins
13731
13732 em_advance * max_char_count
13733 });
13734
13735 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13736 left_padding += if show_code_actions || show_runnables {
13737 em_width * 3.0
13738 } else if show_git_gutter && show_line_numbers {
13739 em_width * 2.0
13740 } else if show_git_gutter || show_line_numbers {
13741 em_width
13742 } else {
13743 px(0.)
13744 };
13745
13746 let right_padding = if gutter_settings.folds && show_line_numbers {
13747 em_width * 4.0
13748 } else if gutter_settings.folds {
13749 em_width * 3.0
13750 } else if show_line_numbers {
13751 em_width
13752 } else {
13753 px(0.)
13754 };
13755
13756 GutterDimensions {
13757 left_padding,
13758 right_padding,
13759 width: line_gutter_width + left_padding + right_padding,
13760 margin: -descent,
13761 git_blame_entries_width,
13762 }
13763 }
13764
13765 pub fn render_fold_toggle(
13766 &self,
13767 buffer_row: MultiBufferRow,
13768 row_contains_cursor: bool,
13769 editor: View<Editor>,
13770 cx: &mut WindowContext,
13771 ) -> Option<AnyElement> {
13772 let folded = self.is_line_folded(buffer_row);
13773
13774 if let Some(crease) = self
13775 .crease_snapshot
13776 .query_row(buffer_row, &self.buffer_snapshot)
13777 {
13778 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13779 if folded {
13780 editor.update(cx, |editor, cx| {
13781 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13782 });
13783 } else {
13784 editor.update(cx, |editor, cx| {
13785 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13786 });
13787 }
13788 });
13789
13790 Some((crease.render_toggle)(
13791 buffer_row,
13792 folded,
13793 toggle_callback,
13794 cx,
13795 ))
13796 } else if folded
13797 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
13798 {
13799 Some(
13800 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
13801 .selected(folded)
13802 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13803 if folded {
13804 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13805 } else {
13806 this.fold_at(&FoldAt { buffer_row }, cx);
13807 }
13808 }))
13809 .into_any_element(),
13810 )
13811 } else {
13812 None
13813 }
13814 }
13815
13816 pub fn render_crease_trailer(
13817 &self,
13818 buffer_row: MultiBufferRow,
13819 cx: &mut WindowContext,
13820 ) -> Option<AnyElement> {
13821 let folded = self.is_line_folded(buffer_row);
13822 let crease = self
13823 .crease_snapshot
13824 .query_row(buffer_row, &self.buffer_snapshot)?;
13825 Some((crease.render_trailer)(buffer_row, folded, cx))
13826 }
13827}
13828
13829impl Deref for EditorSnapshot {
13830 type Target = DisplaySnapshot;
13831
13832 fn deref(&self) -> &Self::Target {
13833 &self.display_snapshot
13834 }
13835}
13836
13837#[derive(Clone, Debug, PartialEq, Eq)]
13838pub enum EditorEvent {
13839 InputIgnored {
13840 text: Arc<str>,
13841 },
13842 InputHandled {
13843 utf16_range_to_replace: Option<Range<isize>>,
13844 text: Arc<str>,
13845 },
13846 ExcerptsAdded {
13847 buffer: Model<Buffer>,
13848 predecessor: ExcerptId,
13849 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
13850 },
13851 ExcerptsRemoved {
13852 ids: Vec<ExcerptId>,
13853 },
13854 ExcerptsEdited {
13855 ids: Vec<ExcerptId>,
13856 },
13857 ExcerptsExpanded {
13858 ids: Vec<ExcerptId>,
13859 },
13860 BufferEdited,
13861 Edited {
13862 transaction_id: clock::Lamport,
13863 },
13864 Reparsed(BufferId),
13865 Focused,
13866 FocusedIn,
13867 Blurred,
13868 DirtyChanged,
13869 Saved,
13870 TitleChanged,
13871 DiffBaseChanged,
13872 SelectionsChanged {
13873 local: bool,
13874 },
13875 ScrollPositionChanged {
13876 local: bool,
13877 autoscroll: bool,
13878 },
13879 Closed,
13880 TransactionUndone {
13881 transaction_id: clock::Lamport,
13882 },
13883 TransactionBegun {
13884 transaction_id: clock::Lamport,
13885 },
13886 Reloaded,
13887 CursorShapeChanged,
13888}
13889
13890impl EventEmitter<EditorEvent> for Editor {}
13891
13892impl FocusableView for Editor {
13893 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
13894 self.focus_handle.clone()
13895 }
13896}
13897
13898impl Render for Editor {
13899 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
13900 let settings = ThemeSettings::get_global(cx);
13901
13902 let mut text_style = match self.mode {
13903 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
13904 color: cx.theme().colors().editor_foreground,
13905 font_family: settings.ui_font.family.clone(),
13906 font_features: settings.ui_font.features.clone(),
13907 font_fallbacks: settings.ui_font.fallbacks.clone(),
13908 font_size: rems(0.875).into(),
13909 font_weight: settings.ui_font.weight,
13910 line_height: relative(settings.buffer_line_height.value()),
13911 ..Default::default()
13912 },
13913 EditorMode::Full => TextStyle {
13914 color: cx.theme().colors().editor_foreground,
13915 font_family: settings.buffer_font.family.clone(),
13916 font_features: settings.buffer_font.features.clone(),
13917 font_fallbacks: settings.buffer_font.fallbacks.clone(),
13918 font_size: settings.buffer_font_size(cx).into(),
13919 font_weight: settings.buffer_font.weight,
13920 line_height: relative(settings.buffer_line_height.value()),
13921 ..Default::default()
13922 },
13923 };
13924 if let Some(text_style_refinement) = &self.text_style_refinement {
13925 text_style.refine(text_style_refinement)
13926 }
13927
13928 let background = match self.mode {
13929 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
13930 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
13931 EditorMode::Full => cx.theme().colors().editor_background,
13932 };
13933
13934 EditorElement::new(
13935 cx.view(),
13936 EditorStyle {
13937 background,
13938 local_player: cx.theme().players().local(),
13939 text: text_style,
13940 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
13941 syntax: cx.theme().syntax().clone(),
13942 status: cx.theme().status().clone(),
13943 inlay_hints_style: make_inlay_hints_style(cx),
13944 suggestions_style: HighlightStyle {
13945 color: Some(cx.theme().status().predictive),
13946 ..HighlightStyle::default()
13947 },
13948 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
13949 },
13950 )
13951 }
13952}
13953
13954impl ViewInputHandler for Editor {
13955 fn text_for_range(
13956 &mut self,
13957 range_utf16: Range<usize>,
13958 cx: &mut ViewContext<Self>,
13959 ) -> Option<String> {
13960 Some(
13961 self.buffer
13962 .read(cx)
13963 .read(cx)
13964 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
13965 .collect(),
13966 )
13967 }
13968
13969 fn selected_text_range(
13970 &mut self,
13971 ignore_disabled_input: bool,
13972 cx: &mut ViewContext<Self>,
13973 ) -> Option<UTF16Selection> {
13974 // Prevent the IME menu from appearing when holding down an alphabetic key
13975 // while input is disabled.
13976 if !ignore_disabled_input && !self.input_enabled {
13977 return None;
13978 }
13979
13980 let selection = self.selections.newest::<OffsetUtf16>(cx);
13981 let range = selection.range();
13982
13983 Some(UTF16Selection {
13984 range: range.start.0..range.end.0,
13985 reversed: selection.reversed,
13986 })
13987 }
13988
13989 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
13990 let snapshot = self.buffer.read(cx).read(cx);
13991 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
13992 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
13993 }
13994
13995 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
13996 self.clear_highlights::<InputComposition>(cx);
13997 self.ime_transaction.take();
13998 }
13999
14000 fn replace_text_in_range(
14001 &mut self,
14002 range_utf16: Option<Range<usize>>,
14003 text: &str,
14004 cx: &mut ViewContext<Self>,
14005 ) {
14006 if !self.input_enabled {
14007 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14008 return;
14009 }
14010
14011 self.transact(cx, |this, cx| {
14012 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14013 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14014 Some(this.selection_replacement_ranges(range_utf16, cx))
14015 } else {
14016 this.marked_text_ranges(cx)
14017 };
14018
14019 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14020 let newest_selection_id = this.selections.newest_anchor().id;
14021 this.selections
14022 .all::<OffsetUtf16>(cx)
14023 .iter()
14024 .zip(ranges_to_replace.iter())
14025 .find_map(|(selection, range)| {
14026 if selection.id == newest_selection_id {
14027 Some(
14028 (range.start.0 as isize - selection.head().0 as isize)
14029 ..(range.end.0 as isize - selection.head().0 as isize),
14030 )
14031 } else {
14032 None
14033 }
14034 })
14035 });
14036
14037 cx.emit(EditorEvent::InputHandled {
14038 utf16_range_to_replace: range_to_replace,
14039 text: text.into(),
14040 });
14041
14042 if let Some(new_selected_ranges) = new_selected_ranges {
14043 this.change_selections(None, cx, |selections| {
14044 selections.select_ranges(new_selected_ranges)
14045 });
14046 this.backspace(&Default::default(), cx);
14047 }
14048
14049 this.handle_input(text, cx);
14050 });
14051
14052 if let Some(transaction) = self.ime_transaction {
14053 self.buffer.update(cx, |buffer, cx| {
14054 buffer.group_until_transaction(transaction, cx);
14055 });
14056 }
14057
14058 self.unmark_text(cx);
14059 }
14060
14061 fn replace_and_mark_text_in_range(
14062 &mut self,
14063 range_utf16: Option<Range<usize>>,
14064 text: &str,
14065 new_selected_range_utf16: Option<Range<usize>>,
14066 cx: &mut ViewContext<Self>,
14067 ) {
14068 if !self.input_enabled {
14069 return;
14070 }
14071
14072 let transaction = self.transact(cx, |this, cx| {
14073 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14074 let snapshot = this.buffer.read(cx).read(cx);
14075 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14076 for marked_range in &mut marked_ranges {
14077 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14078 marked_range.start.0 += relative_range_utf16.start;
14079 marked_range.start =
14080 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14081 marked_range.end =
14082 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14083 }
14084 }
14085 Some(marked_ranges)
14086 } else if let Some(range_utf16) = range_utf16 {
14087 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14088 Some(this.selection_replacement_ranges(range_utf16, cx))
14089 } else {
14090 None
14091 };
14092
14093 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14094 let newest_selection_id = this.selections.newest_anchor().id;
14095 this.selections
14096 .all::<OffsetUtf16>(cx)
14097 .iter()
14098 .zip(ranges_to_replace.iter())
14099 .find_map(|(selection, range)| {
14100 if selection.id == newest_selection_id {
14101 Some(
14102 (range.start.0 as isize - selection.head().0 as isize)
14103 ..(range.end.0 as isize - selection.head().0 as isize),
14104 )
14105 } else {
14106 None
14107 }
14108 })
14109 });
14110
14111 cx.emit(EditorEvent::InputHandled {
14112 utf16_range_to_replace: range_to_replace,
14113 text: text.into(),
14114 });
14115
14116 if let Some(ranges) = ranges_to_replace {
14117 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14118 }
14119
14120 let marked_ranges = {
14121 let snapshot = this.buffer.read(cx).read(cx);
14122 this.selections
14123 .disjoint_anchors()
14124 .iter()
14125 .map(|selection| {
14126 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14127 })
14128 .collect::<Vec<_>>()
14129 };
14130
14131 if text.is_empty() {
14132 this.unmark_text(cx);
14133 } else {
14134 this.highlight_text::<InputComposition>(
14135 marked_ranges.clone(),
14136 HighlightStyle {
14137 underline: Some(UnderlineStyle {
14138 thickness: px(1.),
14139 color: None,
14140 wavy: false,
14141 }),
14142 ..Default::default()
14143 },
14144 cx,
14145 );
14146 }
14147
14148 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14149 let use_autoclose = this.use_autoclose;
14150 let use_auto_surround = this.use_auto_surround;
14151 this.set_use_autoclose(false);
14152 this.set_use_auto_surround(false);
14153 this.handle_input(text, cx);
14154 this.set_use_autoclose(use_autoclose);
14155 this.set_use_auto_surround(use_auto_surround);
14156
14157 if let Some(new_selected_range) = new_selected_range_utf16 {
14158 let snapshot = this.buffer.read(cx).read(cx);
14159 let new_selected_ranges = marked_ranges
14160 .into_iter()
14161 .map(|marked_range| {
14162 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14163 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14164 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14165 snapshot.clip_offset_utf16(new_start, Bias::Left)
14166 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14167 })
14168 .collect::<Vec<_>>();
14169
14170 drop(snapshot);
14171 this.change_selections(None, cx, |selections| {
14172 selections.select_ranges(new_selected_ranges)
14173 });
14174 }
14175 });
14176
14177 self.ime_transaction = self.ime_transaction.or(transaction);
14178 if let Some(transaction) = self.ime_transaction {
14179 self.buffer.update(cx, |buffer, cx| {
14180 buffer.group_until_transaction(transaction, cx);
14181 });
14182 }
14183
14184 if self.text_highlights::<InputComposition>(cx).is_none() {
14185 self.ime_transaction.take();
14186 }
14187 }
14188
14189 fn bounds_for_range(
14190 &mut self,
14191 range_utf16: Range<usize>,
14192 element_bounds: gpui::Bounds<Pixels>,
14193 cx: &mut ViewContext<Self>,
14194 ) -> Option<gpui::Bounds<Pixels>> {
14195 let text_layout_details = self.text_layout_details(cx);
14196 let style = &text_layout_details.editor_style;
14197 let font_id = cx.text_system().resolve_font(&style.text.font());
14198 let font_size = style.text.font_size.to_pixels(cx.rem_size());
14199 let line_height = style.text.line_height_in_pixels(cx.rem_size());
14200
14201 let em_width = cx
14202 .text_system()
14203 .typographic_bounds(font_id, font_size, 'm')
14204 .unwrap()
14205 .size
14206 .width;
14207
14208 let snapshot = self.snapshot(cx);
14209 let scroll_position = snapshot.scroll_position();
14210 let scroll_left = scroll_position.x * em_width;
14211
14212 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14213 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14214 + self.gutter_dimensions.width;
14215 let y = line_height * (start.row().as_f32() - scroll_position.y);
14216
14217 Some(Bounds {
14218 origin: element_bounds.origin + point(x, y),
14219 size: size(em_width, line_height),
14220 })
14221 }
14222}
14223
14224trait SelectionExt {
14225 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14226 fn spanned_rows(
14227 &self,
14228 include_end_if_at_line_start: bool,
14229 map: &DisplaySnapshot,
14230 ) -> Range<MultiBufferRow>;
14231}
14232
14233impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14234 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14235 let start = self
14236 .start
14237 .to_point(&map.buffer_snapshot)
14238 .to_display_point(map);
14239 let end = self
14240 .end
14241 .to_point(&map.buffer_snapshot)
14242 .to_display_point(map);
14243 if self.reversed {
14244 end..start
14245 } else {
14246 start..end
14247 }
14248 }
14249
14250 fn spanned_rows(
14251 &self,
14252 include_end_if_at_line_start: bool,
14253 map: &DisplaySnapshot,
14254 ) -> Range<MultiBufferRow> {
14255 let start = self.start.to_point(&map.buffer_snapshot);
14256 let mut end = self.end.to_point(&map.buffer_snapshot);
14257 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14258 end.row -= 1;
14259 }
14260
14261 let buffer_start = map.prev_line_boundary(start).0;
14262 let buffer_end = map.next_line_boundary(end).0;
14263 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14264 }
14265}
14266
14267impl<T: InvalidationRegion> InvalidationStack<T> {
14268 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14269 where
14270 S: Clone + ToOffset,
14271 {
14272 while let Some(region) = self.last() {
14273 let all_selections_inside_invalidation_ranges =
14274 if selections.len() == region.ranges().len() {
14275 selections
14276 .iter()
14277 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14278 .all(|(selection, invalidation_range)| {
14279 let head = selection.head().to_offset(buffer);
14280 invalidation_range.start <= head && invalidation_range.end >= head
14281 })
14282 } else {
14283 false
14284 };
14285
14286 if all_selections_inside_invalidation_ranges {
14287 break;
14288 } else {
14289 self.pop();
14290 }
14291 }
14292 }
14293}
14294
14295impl<T> Default for InvalidationStack<T> {
14296 fn default() -> Self {
14297 Self(Default::default())
14298 }
14299}
14300
14301impl<T> Deref for InvalidationStack<T> {
14302 type Target = Vec<T>;
14303
14304 fn deref(&self) -> &Self::Target {
14305 &self.0
14306 }
14307}
14308
14309impl<T> DerefMut for InvalidationStack<T> {
14310 fn deref_mut(&mut self) -> &mut Self::Target {
14311 &mut self.0
14312 }
14313}
14314
14315impl InvalidationRegion for SnippetState {
14316 fn ranges(&self) -> &[Range<Anchor>] {
14317 &self.ranges[self.active_index]
14318 }
14319}
14320
14321pub fn diagnostic_block_renderer(
14322 diagnostic: Diagnostic,
14323 max_message_rows: Option<u8>,
14324 allow_closing: bool,
14325 _is_valid: bool,
14326) -> RenderBlock {
14327 let (text_without_backticks, code_ranges) =
14328 highlight_diagnostic_message(&diagnostic, max_message_rows);
14329
14330 Box::new(move |cx: &mut BlockContext| {
14331 let group_id: SharedString = cx.block_id.to_string().into();
14332
14333 let mut text_style = cx.text_style().clone();
14334 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14335 let theme_settings = ThemeSettings::get_global(cx);
14336 text_style.font_family = theme_settings.buffer_font.family.clone();
14337 text_style.font_style = theme_settings.buffer_font.style;
14338 text_style.font_features = theme_settings.buffer_font.features.clone();
14339 text_style.font_weight = theme_settings.buffer_font.weight;
14340
14341 let multi_line_diagnostic = diagnostic.message.contains('\n');
14342
14343 let buttons = |diagnostic: &Diagnostic| {
14344 if multi_line_diagnostic {
14345 v_flex()
14346 } else {
14347 h_flex()
14348 }
14349 .when(allow_closing, |div| {
14350 div.children(diagnostic.is_primary.then(|| {
14351 IconButton::new("close-block", IconName::XCircle)
14352 .icon_color(Color::Muted)
14353 .size(ButtonSize::Compact)
14354 .style(ButtonStyle::Transparent)
14355 .visible_on_hover(group_id.clone())
14356 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14357 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14358 }))
14359 })
14360 .child(
14361 IconButton::new("copy-block", IconName::Copy)
14362 .icon_color(Color::Muted)
14363 .size(ButtonSize::Compact)
14364 .style(ButtonStyle::Transparent)
14365 .visible_on_hover(group_id.clone())
14366 .on_click({
14367 let message = diagnostic.message.clone();
14368 move |_click, cx| {
14369 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14370 }
14371 })
14372 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14373 )
14374 };
14375
14376 let icon_size = buttons(&diagnostic)
14377 .into_any_element()
14378 .layout_as_root(AvailableSpace::min_size(), cx);
14379
14380 h_flex()
14381 .id(cx.block_id)
14382 .group(group_id.clone())
14383 .relative()
14384 .size_full()
14385 .pl(cx.gutter_dimensions.width)
14386 .w(cx.max_width - cx.gutter_dimensions.full_width())
14387 .child(
14388 div()
14389 .flex()
14390 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14391 .flex_shrink(),
14392 )
14393 .child(buttons(&diagnostic))
14394 .child(div().flex().flex_shrink_0().child(
14395 StyledText::new(text_without_backticks.clone()).with_highlights(
14396 &text_style,
14397 code_ranges.iter().map(|range| {
14398 (
14399 range.clone(),
14400 HighlightStyle {
14401 font_weight: Some(FontWeight::BOLD),
14402 ..Default::default()
14403 },
14404 )
14405 }),
14406 ),
14407 ))
14408 .into_any_element()
14409 })
14410}
14411
14412pub fn highlight_diagnostic_message(
14413 diagnostic: &Diagnostic,
14414 mut max_message_rows: Option<u8>,
14415) -> (SharedString, Vec<Range<usize>>) {
14416 let mut text_without_backticks = String::new();
14417 let mut code_ranges = Vec::new();
14418
14419 if let Some(source) = &diagnostic.source {
14420 text_without_backticks.push_str(source);
14421 code_ranges.push(0..source.len());
14422 text_without_backticks.push_str(": ");
14423 }
14424
14425 let mut prev_offset = 0;
14426 let mut in_code_block = false;
14427 let has_row_limit = max_message_rows.is_some();
14428 let mut newline_indices = diagnostic
14429 .message
14430 .match_indices('\n')
14431 .filter(|_| has_row_limit)
14432 .map(|(ix, _)| ix)
14433 .fuse()
14434 .peekable();
14435
14436 for (quote_ix, _) in diagnostic
14437 .message
14438 .match_indices('`')
14439 .chain([(diagnostic.message.len(), "")])
14440 {
14441 let mut first_newline_ix = None;
14442 let mut last_newline_ix = None;
14443 while let Some(newline_ix) = newline_indices.peek() {
14444 if *newline_ix < quote_ix {
14445 if first_newline_ix.is_none() {
14446 first_newline_ix = Some(*newline_ix);
14447 }
14448 last_newline_ix = Some(*newline_ix);
14449
14450 if let Some(rows_left) = &mut max_message_rows {
14451 if *rows_left == 0 {
14452 break;
14453 } else {
14454 *rows_left -= 1;
14455 }
14456 }
14457 let _ = newline_indices.next();
14458 } else {
14459 break;
14460 }
14461 }
14462 let prev_len = text_without_backticks.len();
14463 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14464 text_without_backticks.push_str(new_text);
14465 if in_code_block {
14466 code_ranges.push(prev_len..text_without_backticks.len());
14467 }
14468 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14469 in_code_block = !in_code_block;
14470 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14471 text_without_backticks.push_str("...");
14472 break;
14473 }
14474 }
14475
14476 (text_without_backticks.into(), code_ranges)
14477}
14478
14479fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14480 match severity {
14481 DiagnosticSeverity::ERROR => colors.error,
14482 DiagnosticSeverity::WARNING => colors.warning,
14483 DiagnosticSeverity::INFORMATION => colors.info,
14484 DiagnosticSeverity::HINT => colors.info,
14485 _ => colors.ignored,
14486 }
14487}
14488
14489pub fn styled_runs_for_code_label<'a>(
14490 label: &'a CodeLabel,
14491 syntax_theme: &'a theme::SyntaxTheme,
14492) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14493 let fade_out = HighlightStyle {
14494 fade_out: Some(0.35),
14495 ..Default::default()
14496 };
14497
14498 let mut prev_end = label.filter_range.end;
14499 label
14500 .runs
14501 .iter()
14502 .enumerate()
14503 .flat_map(move |(ix, (range, highlight_id))| {
14504 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14505 style
14506 } else {
14507 return Default::default();
14508 };
14509 let mut muted_style = style;
14510 muted_style.highlight(fade_out);
14511
14512 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14513 if range.start >= label.filter_range.end {
14514 if range.start > prev_end {
14515 runs.push((prev_end..range.start, fade_out));
14516 }
14517 runs.push((range.clone(), muted_style));
14518 } else if range.end <= label.filter_range.end {
14519 runs.push((range.clone(), style));
14520 } else {
14521 runs.push((range.start..label.filter_range.end, style));
14522 runs.push((label.filter_range.end..range.end, muted_style));
14523 }
14524 prev_end = cmp::max(prev_end, range.end);
14525
14526 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14527 runs.push((prev_end..label.text.len(), fade_out));
14528 }
14529
14530 runs
14531 })
14532}
14533
14534pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14535 let mut prev_index = 0;
14536 let mut prev_codepoint: Option<char> = None;
14537 text.char_indices()
14538 .chain([(text.len(), '\0')])
14539 .filter_map(move |(index, codepoint)| {
14540 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14541 let is_boundary = index == text.len()
14542 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14543 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14544 if is_boundary {
14545 let chunk = &text[prev_index..index];
14546 prev_index = index;
14547 Some(chunk)
14548 } else {
14549 None
14550 }
14551 })
14552}
14553
14554pub trait RangeToAnchorExt: Sized {
14555 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14556
14557 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14558 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14559 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14560 }
14561}
14562
14563impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14564 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14565 let start_offset = self.start.to_offset(snapshot);
14566 let end_offset = self.end.to_offset(snapshot);
14567 if start_offset == end_offset {
14568 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14569 } else {
14570 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14571 }
14572 }
14573}
14574
14575pub trait RowExt {
14576 fn as_f32(&self) -> f32;
14577
14578 fn next_row(&self) -> Self;
14579
14580 fn previous_row(&self) -> Self;
14581
14582 fn minus(&self, other: Self) -> u32;
14583}
14584
14585impl RowExt for DisplayRow {
14586 fn as_f32(&self) -> f32 {
14587 self.0 as f32
14588 }
14589
14590 fn next_row(&self) -> Self {
14591 Self(self.0 + 1)
14592 }
14593
14594 fn previous_row(&self) -> Self {
14595 Self(self.0.saturating_sub(1))
14596 }
14597
14598 fn minus(&self, other: Self) -> u32 {
14599 self.0 - other.0
14600 }
14601}
14602
14603impl RowExt for MultiBufferRow {
14604 fn as_f32(&self) -> f32 {
14605 self.0 as f32
14606 }
14607
14608 fn next_row(&self) -> Self {
14609 Self(self.0 + 1)
14610 }
14611
14612 fn previous_row(&self) -> Self {
14613 Self(self.0.saturating_sub(1))
14614 }
14615
14616 fn minus(&self, other: Self) -> u32 {
14617 self.0 - other.0
14618 }
14619}
14620
14621trait RowRangeExt {
14622 type Row;
14623
14624 fn len(&self) -> usize;
14625
14626 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14627}
14628
14629impl RowRangeExt for Range<MultiBufferRow> {
14630 type Row = MultiBufferRow;
14631
14632 fn len(&self) -> usize {
14633 (self.end.0 - self.start.0) as usize
14634 }
14635
14636 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14637 (self.start.0..self.end.0).map(MultiBufferRow)
14638 }
14639}
14640
14641impl RowRangeExt for Range<DisplayRow> {
14642 type Row = DisplayRow;
14643
14644 fn len(&self) -> usize {
14645 (self.end.0 - self.start.0) as usize
14646 }
14647
14648 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14649 (self.start.0..self.end.0).map(DisplayRow)
14650 }
14651}
14652
14653fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14654 if hunk.diff_base_byte_range.is_empty() {
14655 DiffHunkStatus::Added
14656 } else if hunk.row_range.is_empty() {
14657 DiffHunkStatus::Removed
14658 } else {
14659 DiffHunkStatus::Modified
14660 }
14661}
14662
14663/// If select range has more than one line, we
14664/// just point the cursor to range.start.
14665fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14666 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14667 range
14668 } else {
14669 range.start..range.start
14670 }
14671}