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;
51use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
52pub(crate) use actions::*;
53use aho_corasick::AhoCorasick;
54use anyhow::{anyhow, Context as _, Result};
55use blink_manager::BlinkManager;
56use client::{Collaborator, ParticipantIndex};
57use clock::ReplicaId;
58use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
59use convert_case::{Case, Casing};
60use debounced_delay::DebouncedDelay;
61use display_map::*;
62pub use display_map::{DisplayPoint, FoldPlaceholder};
63pub use editor_settings::{
64 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
65};
66pub use editor_settings_controls::*;
67use element::LineWithInvisibles;
68pub use element::{
69 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
70};
71use futures::{future, FutureExt};
72use fuzzy::{StringMatch, StringMatchCandidate};
73use git::blame::GitBlame;
74use gpui::{
75 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
76 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
77 ClipboardItem, Context, DispatchPhase, ElementId, EntityId, EventEmitter, FocusHandle,
78 FocusOutEvent, FocusableView, FontId, FontWeight, HighlightStyle, Hsla, InteractiveText,
79 KeyContext, ListSizingBehavior, Model, MouseButton, PaintQuad, ParentElement, Pixels, Render,
80 SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task, TextStyle,
81 UTF16Selection, UnderlineStyle, UniformListScrollHandle, View, ViewContext, ViewInputHandler,
82 VisualContext, WeakFocusHandle, WeakView, WindowContext,
83};
84use highlight_matching_bracket::refresh_matching_bracket_highlights;
85use hover_popover::{hide_hover, HoverState};
86pub(crate) use hunk_diff::HoveredHunk;
87use hunk_diff::{diff_hunk_to_display, ExpandedHunks};
88use indent_guides::ActiveIndentGuidesState;
89use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
90pub use inline_completion_provider::*;
91pub use items::MAX_TAB_TITLE_LEN;
92use itertools::Itertools;
93use language::{
94 language_settings::{self, all_language_settings, InlayHintSettings},
95 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
96 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
97 Point, Selection, SelectionGoal, TransactionId,
98};
99use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
100use linked_editing_ranges::refresh_linked_ranges;
101pub use proposed_changes_editor::{
102 ProposedChangesBuffer, ProposedChangesEditor, ProposedChangesEditorToolbar,
103};
104use similar::{ChangeTag, TextDiff};
105use task::{ResolvedTask, TaskTemplate, TaskVariables};
106
107use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
108pub use lsp::CompletionContext;
109use lsp::{
110 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
111 LanguageServerId,
112};
113use mouse_context_menu::MouseContextMenu;
114use movement::TextLayoutDetails;
115pub use multi_buffer::{
116 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
117 ToPoint,
118};
119use multi_buffer::{
120 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
121};
122use ordered_float::OrderedFloat;
123use parking_lot::{Mutex, RwLock};
124use project::{
125 lsp_store::FormatTrigger,
126 project_settings::{GitGutterSetting, ProjectSettings},
127 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Item, Location,
128 LocationLink, Project, ProjectPath, ProjectTransaction, TaskSourceKind,
129};
130use rand::prelude::*;
131use rpc::{proto::*, ErrorExt};
132use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
133use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
134use serde::{Deserialize, Serialize};
135use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
136use smallvec::SmallVec;
137use snippet::Snippet;
138use std::{
139 any::TypeId,
140 borrow::Cow,
141 cell::RefCell,
142 cmp::{self, Ordering, Reverse},
143 mem,
144 num::NonZeroU32,
145 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
146 path::{Path, PathBuf},
147 rc::Rc,
148 sync::Arc,
149 time::{Duration, Instant},
150};
151pub use sum_tree::Bias;
152use sum_tree::TreeMap;
153use text::{BufferId, OffsetUtf16, Rope};
154use theme::{
155 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
156 ThemeColors, ThemeSettings,
157};
158use ui::{
159 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
160 ListItem, Popover, PopoverMenuHandle, Tooltip,
161};
162use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
163use workspace::item::{ItemHandle, PreviewTabsSettings};
164use workspace::notifications::{DetachAndPromptErr, NotificationId};
165use workspace::{
166 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
167};
168use workspace::{OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
169
170use crate::hover_links::find_url;
171use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
172
173pub const FILE_HEADER_HEIGHT: u32 = 1;
174pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
175pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
176pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
177const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
178const MAX_LINE_LEN: usize = 1024;
179const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
180const MAX_SELECTION_HISTORY_LEN: usize = 1024;
181pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
182#[doc(hidden)]
183pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
184#[doc(hidden)]
185pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
186
187pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
188pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
189
190pub fn render_parsed_markdown(
191 element_id: impl Into<ElementId>,
192 parsed: &language::ParsedMarkdown,
193 editor_style: &EditorStyle,
194 workspace: Option<WeakView<Workspace>>,
195 cx: &mut WindowContext,
196) -> InteractiveText {
197 let code_span_background_color = cx
198 .theme()
199 .colors()
200 .editor_document_highlight_read_background;
201
202 let highlights = gpui::combine_highlights(
203 parsed.highlights.iter().filter_map(|(range, highlight)| {
204 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
205 Some((range.clone(), highlight))
206 }),
207 parsed
208 .regions
209 .iter()
210 .zip(&parsed.region_ranges)
211 .filter_map(|(region, range)| {
212 if region.code {
213 Some((
214 range.clone(),
215 HighlightStyle {
216 background_color: Some(code_span_background_color),
217 ..Default::default()
218 },
219 ))
220 } else {
221 None
222 }
223 }),
224 );
225
226 let mut links = Vec::new();
227 let mut link_ranges = Vec::new();
228 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
229 if let Some(link) = region.link.clone() {
230 links.push(link);
231 link_ranges.push(range.clone());
232 }
233 }
234
235 InteractiveText::new(
236 element_id,
237 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
238 )
239 .on_click(link_ranges, move |clicked_range_ix, cx| {
240 match &links[clicked_range_ix] {
241 markdown::Link::Web { url } => cx.open_url(url),
242 markdown::Link::Path { path } => {
243 if let Some(workspace) = &workspace {
244 _ = workspace.update(cx, |workspace, cx| {
245 workspace.open_abs_path(path.clone(), false, cx).detach();
246 });
247 }
248 }
249 }
250 })
251}
252
253#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
254pub(crate) enum InlayId {
255 Suggestion(usize),
256 Hint(usize),
257}
258
259impl InlayId {
260 fn id(&self) -> usize {
261 match self {
262 Self::Suggestion(id) => *id,
263 Self::Hint(id) => *id,
264 }
265 }
266}
267
268enum DiffRowHighlight {}
269enum DocumentHighlightRead {}
270enum DocumentHighlightWrite {}
271enum InputComposition {}
272
273#[derive(Copy, Clone, PartialEq, Eq)]
274pub enum Direction {
275 Prev,
276 Next,
277}
278
279#[derive(Debug, Copy, Clone, PartialEq, Eq)]
280pub enum Navigated {
281 Yes,
282 No,
283}
284
285impl Navigated {
286 pub fn from_bool(yes: bool) -> Navigated {
287 if yes {
288 Navigated::Yes
289 } else {
290 Navigated::No
291 }
292 }
293}
294
295pub fn init_settings(cx: &mut AppContext) {
296 EditorSettings::register(cx);
297}
298
299pub fn init(cx: &mut AppContext) {
300 init_settings(cx);
301
302 workspace::register_project_item::<Editor>(cx);
303 workspace::FollowableViewRegistry::register::<Editor>(cx);
304 workspace::register_serializable_item::<Editor>(cx);
305
306 cx.observe_new_views(
307 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
308 workspace.register_action(Editor::new_file);
309 workspace.register_action(Editor::new_file_vertical);
310 workspace.register_action(Editor::new_file_horizontal);
311 },
312 )
313 .detach();
314
315 cx.on_action(move |_: &workspace::NewFile, cx| {
316 let app_state = workspace::AppState::global(cx);
317 if let Some(app_state) = app_state.upgrade() {
318 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
319 Editor::new_file(workspace, &Default::default(), cx)
320 })
321 .detach();
322 }
323 });
324 cx.on_action(move |_: &workspace::NewWindow, cx| {
325 let app_state = workspace::AppState::global(cx);
326 if let Some(app_state) = app_state.upgrade() {
327 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
328 Editor::new_file(workspace, &Default::default(), cx)
329 })
330 .detach();
331 }
332 });
333}
334
335pub struct SearchWithinRange;
336
337trait InvalidationRegion {
338 fn ranges(&self) -> &[Range<Anchor>];
339}
340
341#[derive(Clone, Debug, PartialEq)]
342pub enum SelectPhase {
343 Begin {
344 position: DisplayPoint,
345 add: bool,
346 click_count: usize,
347 },
348 BeginColumnar {
349 position: DisplayPoint,
350 reset: bool,
351 goal_column: u32,
352 },
353 Extend {
354 position: DisplayPoint,
355 click_count: usize,
356 },
357 Update {
358 position: DisplayPoint,
359 goal_column: u32,
360 scroll_delta: gpui::Point<f32>,
361 },
362 End,
363}
364
365#[derive(Clone, Debug)]
366pub enum SelectMode {
367 Character,
368 Word(Range<Anchor>),
369 Line(Range<Anchor>),
370 All,
371}
372
373#[derive(Copy, Clone, PartialEq, Eq, Debug)]
374pub enum EditorMode {
375 SingleLine { auto_width: bool },
376 AutoHeight { max_lines: usize },
377 Full,
378}
379
380#[derive(Copy, Clone, Debug)]
381pub enum SoftWrap {
382 /// Prefer not to wrap at all.
383 ///
384 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
385 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
386 GitDiff,
387 /// Prefer a single line generally, unless an overly long line is encountered.
388 None,
389 /// Soft wrap lines that exceed the editor width.
390 EditorWidth,
391 /// Soft wrap lines at the preferred line length.
392 Column(u32),
393 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
394 Bounded(u32),
395}
396
397#[derive(Clone)]
398pub struct EditorStyle {
399 pub background: Hsla,
400 pub local_player: PlayerColor,
401 pub text: TextStyle,
402 pub scrollbar_width: Pixels,
403 pub syntax: Arc<SyntaxTheme>,
404 pub status: StatusColors,
405 pub inlay_hints_style: HighlightStyle,
406 pub suggestions_style: HighlightStyle,
407 pub unnecessary_code_fade: f32,
408}
409
410impl Default for EditorStyle {
411 fn default() -> Self {
412 Self {
413 background: Hsla::default(),
414 local_player: PlayerColor::default(),
415 text: TextStyle::default(),
416 scrollbar_width: Pixels::default(),
417 syntax: Default::default(),
418 // HACK: Status colors don't have a real default.
419 // We should look into removing the status colors from the editor
420 // style and retrieve them directly from the theme.
421 status: StatusColors::dark(),
422 inlay_hints_style: HighlightStyle::default(),
423 suggestions_style: HighlightStyle::default(),
424 unnecessary_code_fade: Default::default(),
425 }
426 }
427}
428
429pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
430 let show_background = all_language_settings(None, cx)
431 .language(None)
432 .inlay_hints
433 .show_background;
434
435 HighlightStyle {
436 color: Some(cx.theme().status().hint),
437 background_color: show_background.then(|| cx.theme().status().hint_background),
438 ..HighlightStyle::default()
439 }
440}
441
442type CompletionId = usize;
443
444#[derive(Clone, Debug)]
445struct CompletionState {
446 // render_inlay_ids represents the inlay hints that are inserted
447 // for rendering the inline completions. They may be discontinuous
448 // in the event that the completion provider returns some intersection
449 // with the existing content.
450 render_inlay_ids: Vec<InlayId>,
451 // text is the resulting rope that is inserted when the user accepts a completion.
452 text: Rope,
453 // position is the position of the cursor when the completion was triggered.
454 position: multi_buffer::Anchor,
455 // delete_range is the range of text that this completion state covers.
456 // if the completion is accepted, this range should be deleted.
457 delete_range: Option<Range<multi_buffer::Anchor>>,
458}
459
460#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
461struct EditorActionId(usize);
462
463impl EditorActionId {
464 pub fn post_inc(&mut self) -> Self {
465 let answer = self.0;
466
467 *self = Self(answer + 1);
468
469 Self(answer)
470 }
471}
472
473// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
474// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
475
476type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
477type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
478
479#[derive(Default)]
480struct ScrollbarMarkerState {
481 scrollbar_size: Size<Pixels>,
482 dirty: bool,
483 markers: Arc<[PaintQuad]>,
484 pending_refresh: Option<Task<Result<()>>>,
485}
486
487impl ScrollbarMarkerState {
488 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
489 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
490 }
491}
492
493#[derive(Clone, Debug)]
494struct RunnableTasks {
495 templates: Vec<(TaskSourceKind, TaskTemplate)>,
496 offset: MultiBufferOffset,
497 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
498 column: u32,
499 // Values of all named captures, including those starting with '_'
500 extra_variables: HashMap<String, String>,
501 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
502 context_range: Range<BufferOffset>,
503}
504
505#[derive(Clone)]
506struct ResolvedTasks {
507 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
508 position: Anchor,
509}
510#[derive(Copy, Clone, Debug)]
511struct MultiBufferOffset(usize);
512#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
513struct BufferOffset(usize);
514
515// Addons allow storing per-editor state in other crates (e.g. Vim)
516pub trait Addon: 'static {
517 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
518
519 fn to_any(&self) -> &dyn std::any::Any;
520}
521
522/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
523///
524/// See the [module level documentation](self) for more information.
525pub struct Editor {
526 focus_handle: FocusHandle,
527 last_focused_descendant: Option<WeakFocusHandle>,
528 /// The text buffer being edited
529 buffer: Model<MultiBuffer>,
530 /// Map of how text in the buffer should be displayed.
531 /// Handles soft wraps, folds, fake inlay text insertions, etc.
532 pub display_map: Model<DisplayMap>,
533 pub selections: SelectionsCollection,
534 pub scroll_manager: ScrollManager,
535 /// When inline assist editors are linked, they all render cursors because
536 /// typing enters text into each of them, even the ones that aren't focused.
537 pub(crate) show_cursor_when_unfocused: bool,
538 columnar_selection_tail: Option<Anchor>,
539 add_selections_state: Option<AddSelectionsState>,
540 select_next_state: Option<SelectNextState>,
541 select_prev_state: Option<SelectNextState>,
542 selection_history: SelectionHistory,
543 autoclose_regions: Vec<AutocloseRegion>,
544 snippet_stack: InvalidationStack<SnippetState>,
545 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
546 ime_transaction: Option<TransactionId>,
547 active_diagnostics: Option<ActiveDiagnosticGroup>,
548 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
549 project: Option<Model<Project>>,
550 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
551 completion_provider: Option<Box<dyn CompletionProvider>>,
552 collaboration_hub: Option<Box<dyn CollaborationHub>>,
553 blink_manager: Model<BlinkManager>,
554 show_cursor_names: bool,
555 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
556 pub show_local_selections: bool,
557 mode: EditorMode,
558 show_breadcrumbs: bool,
559 show_gutter: bool,
560 show_line_numbers: Option<bool>,
561 use_relative_line_numbers: Option<bool>,
562 show_git_diff_gutter: Option<bool>,
563 show_code_actions: Option<bool>,
564 show_runnables: Option<bool>,
565 show_wrap_guides: Option<bool>,
566 show_indent_guides: Option<bool>,
567 placeholder_text: Option<Arc<str>>,
568 highlight_order: usize,
569 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
570 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
571 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
572 scrollbar_marker_state: ScrollbarMarkerState,
573 active_indent_guides_state: ActiveIndentGuidesState,
574 nav_history: Option<ItemNavHistory>,
575 context_menu: RwLock<Option<ContextMenu>>,
576 mouse_context_menu: Option<MouseContextMenu>,
577 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
578 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
579 signature_help_state: SignatureHelpState,
580 auto_signature_help: Option<bool>,
581 find_all_references_task_sources: Vec<Anchor>,
582 next_completion_id: CompletionId,
583 completion_documentation_pre_resolve_debounce: DebouncedDelay,
584 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
585 code_actions_task: Option<Task<Result<()>>>,
586 document_highlights_task: Option<Task<()>>,
587 linked_editing_range_task: Option<Task<Option<()>>>,
588 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
589 pending_rename: Option<RenameState>,
590 searchable: bool,
591 cursor_shape: CursorShape,
592 current_line_highlight: Option<CurrentLineHighlight>,
593 collapse_matches: bool,
594 autoindent_mode: Option<AutoindentMode>,
595 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
596 input_enabled: bool,
597 use_modal_editing: bool,
598 read_only: bool,
599 leader_peer_id: Option<PeerId>,
600 remote_id: Option<ViewId>,
601 hover_state: HoverState,
602 gutter_hovered: bool,
603 hovered_link_state: Option<HoveredLinkState>,
604 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
605 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
606 active_inline_completion: Option<CompletionState>,
607 // enable_inline_completions is a switch that Vim can use to disable
608 // inline completions based on its mode.
609 enable_inline_completions: bool,
610 show_inline_completions_override: Option<bool>,
611 inlay_hint_cache: InlayHintCache,
612 expanded_hunks: ExpandedHunks,
613 next_inlay_id: usize,
614 _subscriptions: Vec<Subscription>,
615 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
616 gutter_dimensions: GutterDimensions,
617 style: Option<EditorStyle>,
618 next_editor_action_id: EditorActionId,
619 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
620 use_autoclose: bool,
621 use_auto_surround: bool,
622 auto_replace_emoji_shortcode: bool,
623 show_git_blame_gutter: bool,
624 show_git_blame_inline: bool,
625 show_git_blame_inline_delay_task: Option<Task<()>>,
626 git_blame_inline_enabled: bool,
627 serialize_dirty_buffers: bool,
628 show_selection_menu: Option<bool>,
629 blame: Option<Model<GitBlame>>,
630 blame_subscription: Option<Subscription>,
631 custom_context_menu: Option<
632 Box<
633 dyn 'static
634 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
635 >,
636 >,
637 last_bounds: Option<Bounds<Pixels>>,
638 expect_bounds_change: Option<Bounds<Pixels>>,
639 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
640 tasks_update_task: Option<Task<()>>,
641 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
642 file_header_size: u32,
643 breadcrumb_header: Option<String>,
644 focused_block: Option<FocusedBlock>,
645 next_scroll_position: NextScrollCursorCenterTopBottom,
646 addons: HashMap<TypeId, Box<dyn Addon>>,
647 _scroll_cursor_center_top_bottom_task: Task<()>,
648}
649
650#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
651enum NextScrollCursorCenterTopBottom {
652 #[default]
653 Center,
654 Top,
655 Bottom,
656}
657
658impl NextScrollCursorCenterTopBottom {
659 fn next(&self) -> Self {
660 match self {
661 Self::Center => Self::Top,
662 Self::Top => Self::Bottom,
663 Self::Bottom => Self::Center,
664 }
665 }
666}
667
668#[derive(Clone)]
669pub struct EditorSnapshot {
670 pub mode: EditorMode,
671 show_gutter: bool,
672 show_line_numbers: Option<bool>,
673 show_git_diff_gutter: Option<bool>,
674 show_code_actions: Option<bool>,
675 show_runnables: Option<bool>,
676 git_blame_gutter_max_author_length: Option<usize>,
677 pub display_snapshot: DisplaySnapshot,
678 pub placeholder_text: Option<Arc<str>>,
679 is_focused: bool,
680 scroll_anchor: ScrollAnchor,
681 ongoing_scroll: OngoingScroll,
682 current_line_highlight: CurrentLineHighlight,
683 gutter_hovered: bool,
684}
685
686const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
687
688#[derive(Default, Debug, Clone, Copy)]
689pub struct GutterDimensions {
690 pub left_padding: Pixels,
691 pub right_padding: Pixels,
692 pub width: Pixels,
693 pub margin: Pixels,
694 pub git_blame_entries_width: Option<Pixels>,
695}
696
697impl GutterDimensions {
698 /// The full width of the space taken up by the gutter.
699 pub fn full_width(&self) -> Pixels {
700 self.margin + self.width
701 }
702
703 /// The width of the space reserved for the fold indicators,
704 /// use alongside 'justify_end' and `gutter_width` to
705 /// right align content with the line numbers
706 pub fn fold_area_width(&self) -> Pixels {
707 self.margin + self.right_padding
708 }
709}
710
711#[derive(Debug)]
712pub struct RemoteSelection {
713 pub replica_id: ReplicaId,
714 pub selection: Selection<Anchor>,
715 pub cursor_shape: CursorShape,
716 pub peer_id: PeerId,
717 pub line_mode: bool,
718 pub participant_index: Option<ParticipantIndex>,
719 pub user_name: Option<SharedString>,
720}
721
722#[derive(Clone, Debug)]
723struct SelectionHistoryEntry {
724 selections: Arc<[Selection<Anchor>]>,
725 select_next_state: Option<SelectNextState>,
726 select_prev_state: Option<SelectNextState>,
727 add_selections_state: Option<AddSelectionsState>,
728}
729
730enum SelectionHistoryMode {
731 Normal,
732 Undoing,
733 Redoing,
734}
735
736#[derive(Clone, PartialEq, Eq, Hash)]
737struct HoveredCursor {
738 replica_id: u16,
739 selection_id: usize,
740}
741
742impl Default for SelectionHistoryMode {
743 fn default() -> Self {
744 Self::Normal
745 }
746}
747
748#[derive(Default)]
749struct SelectionHistory {
750 #[allow(clippy::type_complexity)]
751 selections_by_transaction:
752 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
753 mode: SelectionHistoryMode,
754 undo_stack: VecDeque<SelectionHistoryEntry>,
755 redo_stack: VecDeque<SelectionHistoryEntry>,
756}
757
758impl SelectionHistory {
759 fn insert_transaction(
760 &mut self,
761 transaction_id: TransactionId,
762 selections: Arc<[Selection<Anchor>]>,
763 ) {
764 self.selections_by_transaction
765 .insert(transaction_id, (selections, None));
766 }
767
768 #[allow(clippy::type_complexity)]
769 fn transaction(
770 &self,
771 transaction_id: TransactionId,
772 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
773 self.selections_by_transaction.get(&transaction_id)
774 }
775
776 #[allow(clippy::type_complexity)]
777 fn transaction_mut(
778 &mut self,
779 transaction_id: TransactionId,
780 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
781 self.selections_by_transaction.get_mut(&transaction_id)
782 }
783
784 fn push(&mut self, entry: SelectionHistoryEntry) {
785 if !entry.selections.is_empty() {
786 match self.mode {
787 SelectionHistoryMode::Normal => {
788 self.push_undo(entry);
789 self.redo_stack.clear();
790 }
791 SelectionHistoryMode::Undoing => self.push_redo(entry),
792 SelectionHistoryMode::Redoing => self.push_undo(entry),
793 }
794 }
795 }
796
797 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
798 if self
799 .undo_stack
800 .back()
801 .map_or(true, |e| e.selections != entry.selections)
802 {
803 self.undo_stack.push_back(entry);
804 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
805 self.undo_stack.pop_front();
806 }
807 }
808 }
809
810 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
811 if self
812 .redo_stack
813 .back()
814 .map_or(true, |e| e.selections != entry.selections)
815 {
816 self.redo_stack.push_back(entry);
817 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
818 self.redo_stack.pop_front();
819 }
820 }
821 }
822}
823
824struct RowHighlight {
825 index: usize,
826 range: Range<Anchor>,
827 color: Hsla,
828 should_autoscroll: bool,
829}
830
831#[derive(Clone, Debug)]
832struct AddSelectionsState {
833 above: bool,
834 stack: Vec<usize>,
835}
836
837#[derive(Clone)]
838struct SelectNextState {
839 query: AhoCorasick,
840 wordwise: bool,
841 done: bool,
842}
843
844impl std::fmt::Debug for SelectNextState {
845 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
846 f.debug_struct(std::any::type_name::<Self>())
847 .field("wordwise", &self.wordwise)
848 .field("done", &self.done)
849 .finish()
850 }
851}
852
853#[derive(Debug)]
854struct AutocloseRegion {
855 selection_id: usize,
856 range: Range<Anchor>,
857 pair: BracketPair,
858}
859
860#[derive(Debug)]
861struct SnippetState {
862 ranges: Vec<Vec<Range<Anchor>>>,
863 active_index: usize,
864}
865
866#[doc(hidden)]
867pub struct RenameState {
868 pub range: Range<Anchor>,
869 pub old_name: Arc<str>,
870 pub editor: View<Editor>,
871 block_id: CustomBlockId,
872}
873
874struct InvalidationStack<T>(Vec<T>);
875
876struct RegisteredInlineCompletionProvider {
877 provider: Arc<dyn InlineCompletionProviderHandle>,
878 _subscription: Subscription,
879}
880
881enum ContextMenu {
882 Completions(CompletionsMenu),
883 CodeActions(CodeActionsMenu),
884}
885
886impl ContextMenu {
887 fn select_first(
888 &mut self,
889 provider: Option<&dyn CompletionProvider>,
890 cx: &mut ViewContext<Editor>,
891 ) -> bool {
892 if self.visible() {
893 match self {
894 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
895 ContextMenu::CodeActions(menu) => menu.select_first(cx),
896 }
897 true
898 } else {
899 false
900 }
901 }
902
903 fn select_prev(
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_prev(provider, cx),
911 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
912 }
913 true
914 } else {
915 false
916 }
917 }
918
919 fn select_next(
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_next(provider, cx),
927 ContextMenu::CodeActions(menu) => menu.select_next(cx),
928 }
929 true
930 } else {
931 false
932 }
933 }
934
935 fn select_last(
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_last(provider, cx),
943 ContextMenu::CodeActions(menu) => menu.select_last(cx),
944 }
945 true
946 } else {
947 false
948 }
949 }
950
951 fn visible(&self) -> bool {
952 match self {
953 ContextMenu::Completions(menu) => menu.visible(),
954 ContextMenu::CodeActions(menu) => menu.visible(),
955 }
956 }
957
958 fn render(
959 &self,
960 cursor_position: DisplayPoint,
961 style: &EditorStyle,
962 max_height: Pixels,
963 workspace: Option<WeakView<Workspace>>,
964 cx: &mut ViewContext<Editor>,
965 ) -> (ContextMenuOrigin, AnyElement) {
966 match self {
967 ContextMenu::Completions(menu) => (
968 ContextMenuOrigin::EditorPoint(cursor_position),
969 menu.render(style, max_height, workspace, cx),
970 ),
971 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
972 }
973 }
974}
975
976enum ContextMenuOrigin {
977 EditorPoint(DisplayPoint),
978 GutterIndicator(DisplayRow),
979}
980
981#[derive(Clone)]
982struct CompletionsMenu {
983 id: CompletionId,
984 sort_completions: bool,
985 initial_position: Anchor,
986 buffer: Model<Buffer>,
987 completions: Arc<RwLock<Box<[Completion]>>>,
988 match_candidates: Arc<[StringMatchCandidate]>,
989 matches: Arc<[StringMatch]>,
990 selected_item: usize,
991 scroll_handle: UniformListScrollHandle,
992 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
993}
994
995impl CompletionsMenu {
996 fn select_first(
997 &mut self,
998 provider: Option<&dyn CompletionProvider>,
999 cx: &mut ViewContext<Editor>,
1000 ) {
1001 self.selected_item = 0;
1002 self.scroll_handle.scroll_to_item(self.selected_item);
1003 self.attempt_resolve_selected_completion_documentation(provider, cx);
1004 cx.notify();
1005 }
1006
1007 fn select_prev(
1008 &mut self,
1009 provider: Option<&dyn CompletionProvider>,
1010 cx: &mut ViewContext<Editor>,
1011 ) {
1012 if self.selected_item > 0 {
1013 self.selected_item -= 1;
1014 } else {
1015 self.selected_item = self.matches.len() - 1;
1016 }
1017 self.scroll_handle.scroll_to_item(self.selected_item);
1018 self.attempt_resolve_selected_completion_documentation(provider, cx);
1019 cx.notify();
1020 }
1021
1022 fn select_next(
1023 &mut self,
1024 provider: Option<&dyn CompletionProvider>,
1025 cx: &mut ViewContext<Editor>,
1026 ) {
1027 if self.selected_item + 1 < self.matches.len() {
1028 self.selected_item += 1;
1029 } else {
1030 self.selected_item = 0;
1031 }
1032 self.scroll_handle.scroll_to_item(self.selected_item);
1033 self.attempt_resolve_selected_completion_documentation(provider, cx);
1034 cx.notify();
1035 }
1036
1037 fn select_last(
1038 &mut self,
1039 provider: Option<&dyn CompletionProvider>,
1040 cx: &mut ViewContext<Editor>,
1041 ) {
1042 self.selected_item = self.matches.len() - 1;
1043 self.scroll_handle.scroll_to_item(self.selected_item);
1044 self.attempt_resolve_selected_completion_documentation(provider, cx);
1045 cx.notify();
1046 }
1047
1048 fn pre_resolve_completion_documentation(
1049 buffer: Model<Buffer>,
1050 completions: Arc<RwLock<Box<[Completion]>>>,
1051 matches: Arc<[StringMatch]>,
1052 editor: &Editor,
1053 cx: &mut ViewContext<Editor>,
1054 ) -> Task<()> {
1055 let settings = EditorSettings::get_global(cx);
1056 if !settings.show_completion_documentation {
1057 return Task::ready(());
1058 }
1059
1060 let Some(provider) = editor.completion_provider.as_ref() else {
1061 return Task::ready(());
1062 };
1063
1064 let resolve_task = provider.resolve_completions(
1065 buffer,
1066 matches.iter().map(|m| m.candidate_id).collect(),
1067 completions.clone(),
1068 cx,
1069 );
1070
1071 cx.spawn(move |this, mut cx| async move {
1072 if let Some(true) = resolve_task.await.log_err() {
1073 this.update(&mut cx, |_, cx| cx.notify()).ok();
1074 }
1075 })
1076 }
1077
1078 fn attempt_resolve_selected_completion_documentation(
1079 &mut self,
1080 provider: Option<&dyn CompletionProvider>,
1081 cx: &mut ViewContext<Editor>,
1082 ) {
1083 let settings = EditorSettings::get_global(cx);
1084 if !settings.show_completion_documentation {
1085 return;
1086 }
1087
1088 let completion_index = self.matches[self.selected_item].candidate_id;
1089 let Some(provider) = provider else {
1090 return;
1091 };
1092
1093 let resolve_task = provider.resolve_completions(
1094 self.buffer.clone(),
1095 vec![completion_index],
1096 self.completions.clone(),
1097 cx,
1098 );
1099
1100 let delay_ms =
1101 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1102 let delay = Duration::from_millis(delay_ms);
1103
1104 self.selected_completion_documentation_resolve_debounce
1105 .lock()
1106 .fire_new(delay, cx, |_, cx| {
1107 cx.spawn(move |this, mut cx| async move {
1108 if let Some(true) = resolve_task.await.log_err() {
1109 this.update(&mut cx, |_, cx| cx.notify()).ok();
1110 }
1111 })
1112 });
1113 }
1114
1115 fn visible(&self) -> bool {
1116 !self.matches.is_empty()
1117 }
1118
1119 fn render(
1120 &self,
1121 style: &EditorStyle,
1122 max_height: Pixels,
1123 workspace: Option<WeakView<Workspace>>,
1124 cx: &mut ViewContext<Editor>,
1125 ) -> AnyElement {
1126 let settings = EditorSettings::get_global(cx);
1127 let show_completion_documentation = settings.show_completion_documentation;
1128
1129 let widest_completion_ix = self
1130 .matches
1131 .iter()
1132 .enumerate()
1133 .max_by_key(|(_, mat)| {
1134 let completions = self.completions.read();
1135 let completion = &completions[mat.candidate_id];
1136 let documentation = &completion.documentation;
1137
1138 let mut len = completion.label.text.chars().count();
1139 if let Some(Documentation::SingleLine(text)) = documentation {
1140 if show_completion_documentation {
1141 len += text.chars().count();
1142 }
1143 }
1144
1145 len
1146 })
1147 .map(|(ix, _)| ix);
1148
1149 let completions = self.completions.clone();
1150 let matches = self.matches.clone();
1151 let selected_item = self.selected_item;
1152 let style = style.clone();
1153
1154 let multiline_docs = if show_completion_documentation {
1155 let mat = &self.matches[selected_item];
1156 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1157 Some(Documentation::MultiLinePlainText(text)) => {
1158 Some(div().child(SharedString::from(text.clone())))
1159 }
1160 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1161 Some(div().child(render_parsed_markdown(
1162 "completions_markdown",
1163 parsed,
1164 &style,
1165 workspace,
1166 cx,
1167 )))
1168 }
1169 _ => None,
1170 };
1171 multiline_docs.map(|div| {
1172 div.id("multiline_docs")
1173 .max_h(max_height)
1174 .flex_1()
1175 .px_1p5()
1176 .py_1()
1177 .min_w(px(260.))
1178 .max_w(px(640.))
1179 .w(px(500.))
1180 .overflow_y_scroll()
1181 .occlude()
1182 })
1183 } else {
1184 None
1185 };
1186
1187 let list = uniform_list(
1188 cx.view().clone(),
1189 "completions",
1190 matches.len(),
1191 move |_editor, range, cx| {
1192 let start_ix = range.start;
1193 let completions_guard = completions.read();
1194
1195 matches[range]
1196 .iter()
1197 .enumerate()
1198 .map(|(ix, mat)| {
1199 let item_ix = start_ix + ix;
1200 let candidate_id = mat.candidate_id;
1201 let completion = &completions_guard[candidate_id];
1202
1203 let documentation = if show_completion_documentation {
1204 &completion.documentation
1205 } else {
1206 &None
1207 };
1208
1209 let highlights = gpui::combine_highlights(
1210 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1211 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1212 |(range, mut highlight)| {
1213 // Ignore font weight for syntax highlighting, as we'll use it
1214 // for fuzzy matches.
1215 highlight.font_weight = None;
1216
1217 if completion.lsp_completion.deprecated.unwrap_or(false) {
1218 highlight.strikethrough = Some(StrikethroughStyle {
1219 thickness: 1.0.into(),
1220 ..Default::default()
1221 });
1222 highlight.color = Some(cx.theme().colors().text_muted);
1223 }
1224
1225 (range, highlight)
1226 },
1227 ),
1228 );
1229 let completion_label = StyledText::new(completion.label.text.clone())
1230 .with_highlights(&style.text, highlights);
1231 let documentation_label =
1232 if let Some(Documentation::SingleLine(text)) = documentation {
1233 if text.trim().is_empty() {
1234 None
1235 } else {
1236 Some(
1237 Label::new(text.clone())
1238 .ml_4()
1239 .size(LabelSize::Small)
1240 .color(Color::Muted),
1241 )
1242 }
1243 } else {
1244 None
1245 };
1246
1247 let color_swatch = completion
1248 .color()
1249 .map(|color| div().size_4().bg(color).rounded_sm());
1250
1251 div().min_w(px(220.)).max_w(px(540.)).child(
1252 ListItem::new(mat.candidate_id)
1253 .inset(true)
1254 .selected(item_ix == selected_item)
1255 .on_click(cx.listener(move |editor, _event, cx| {
1256 cx.stop_propagation();
1257 if let Some(task) = editor.confirm_completion(
1258 &ConfirmCompletion {
1259 item_ix: Some(item_ix),
1260 },
1261 cx,
1262 ) {
1263 task.detach_and_log_err(cx)
1264 }
1265 }))
1266 .start_slot::<Div>(color_swatch)
1267 .child(h_flex().overflow_hidden().child(completion_label))
1268 .end_slot::<Label>(documentation_label),
1269 )
1270 })
1271 .collect()
1272 },
1273 )
1274 .occlude()
1275 .max_h(max_height)
1276 .track_scroll(self.scroll_handle.clone())
1277 .with_width_from_item(widest_completion_ix)
1278 .with_sizing_behavior(ListSizingBehavior::Infer);
1279
1280 Popover::new()
1281 .child(list)
1282 .when_some(multiline_docs, |popover, multiline_docs| {
1283 popover.aside(multiline_docs)
1284 })
1285 .into_any_element()
1286 }
1287
1288 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1289 let mut matches = if let Some(query) = query {
1290 fuzzy::match_strings(
1291 &self.match_candidates,
1292 query,
1293 query.chars().any(|c| c.is_uppercase()),
1294 100,
1295 &Default::default(),
1296 executor,
1297 )
1298 .await
1299 } else {
1300 self.match_candidates
1301 .iter()
1302 .enumerate()
1303 .map(|(candidate_id, candidate)| StringMatch {
1304 candidate_id,
1305 score: Default::default(),
1306 positions: Default::default(),
1307 string: candidate.string.clone(),
1308 })
1309 .collect()
1310 };
1311
1312 // Remove all candidates where the query's start does not match the start of any word in the candidate
1313 if let Some(query) = query {
1314 if let Some(query_start) = query.chars().next() {
1315 matches.retain(|string_match| {
1316 split_words(&string_match.string).any(|word| {
1317 // Check that the first codepoint of the word as lowercase matches the first
1318 // codepoint of the query as lowercase
1319 word.chars()
1320 .flat_map(|codepoint| codepoint.to_lowercase())
1321 .zip(query_start.to_lowercase())
1322 .all(|(word_cp, query_cp)| word_cp == query_cp)
1323 })
1324 });
1325 }
1326 }
1327
1328 let completions = self.completions.read();
1329 if self.sort_completions {
1330 matches.sort_unstable_by_key(|mat| {
1331 // We do want to strike a balance here between what the language server tells us
1332 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1333 // `Creat` and there is a local variable called `CreateComponent`).
1334 // So what we do is: we bucket all matches into two buckets
1335 // - Strong matches
1336 // - Weak matches
1337 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1338 // and the Weak matches are the rest.
1339 //
1340 // For the strong matches, we sort by the language-servers score first and for the weak
1341 // matches, we prefer our fuzzy finder first.
1342 //
1343 // The thinking behind that: it's useless to take the sort_text the language-server gives
1344 // us into account when it's obviously a bad match.
1345
1346 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1347 enum MatchScore<'a> {
1348 Strong {
1349 sort_text: Option<&'a str>,
1350 score: Reverse<OrderedFloat<f64>>,
1351 sort_key: (usize, &'a str),
1352 },
1353 Weak {
1354 score: Reverse<OrderedFloat<f64>>,
1355 sort_text: Option<&'a str>,
1356 sort_key: (usize, &'a str),
1357 },
1358 }
1359
1360 let completion = &completions[mat.candidate_id];
1361 let sort_key = completion.sort_key();
1362 let sort_text = completion.lsp_completion.sort_text.as_deref();
1363 let score = Reverse(OrderedFloat(mat.score));
1364
1365 if mat.score >= 0.2 {
1366 MatchScore::Strong {
1367 sort_text,
1368 score,
1369 sort_key,
1370 }
1371 } else {
1372 MatchScore::Weak {
1373 score,
1374 sort_text,
1375 sort_key,
1376 }
1377 }
1378 });
1379 }
1380
1381 for mat in &mut matches {
1382 let completion = &completions[mat.candidate_id];
1383 mat.string.clone_from(&completion.label.text);
1384 for position in &mut mat.positions {
1385 *position += completion.label.filter_range.start;
1386 }
1387 }
1388 drop(completions);
1389
1390 self.matches = matches.into();
1391 self.selected_item = 0;
1392 }
1393}
1394
1395struct AvailableCodeAction {
1396 excerpt_id: ExcerptId,
1397 action: CodeAction,
1398 provider: Arc<dyn CodeActionProvider>,
1399}
1400
1401#[derive(Clone)]
1402struct CodeActionContents {
1403 tasks: Option<Arc<ResolvedTasks>>,
1404 actions: Option<Arc<[AvailableCodeAction]>>,
1405}
1406
1407impl CodeActionContents {
1408 fn len(&self) -> usize {
1409 match (&self.tasks, &self.actions) {
1410 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1411 (Some(tasks), None) => tasks.templates.len(),
1412 (None, Some(actions)) => actions.len(),
1413 (None, None) => 0,
1414 }
1415 }
1416
1417 fn is_empty(&self) -> bool {
1418 match (&self.tasks, &self.actions) {
1419 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1420 (Some(tasks), None) => tasks.templates.is_empty(),
1421 (None, Some(actions)) => actions.is_empty(),
1422 (None, None) => true,
1423 }
1424 }
1425
1426 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1427 self.tasks
1428 .iter()
1429 .flat_map(|tasks| {
1430 tasks
1431 .templates
1432 .iter()
1433 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1434 })
1435 .chain(self.actions.iter().flat_map(|actions| {
1436 actions.iter().map(|available| CodeActionsItem::CodeAction {
1437 excerpt_id: available.excerpt_id,
1438 action: available.action.clone(),
1439 provider: available.provider.clone(),
1440 })
1441 }))
1442 }
1443 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1444 match (&self.tasks, &self.actions) {
1445 (Some(tasks), Some(actions)) => {
1446 if index < tasks.templates.len() {
1447 tasks
1448 .templates
1449 .get(index)
1450 .cloned()
1451 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1452 } else {
1453 actions.get(index - tasks.templates.len()).map(|available| {
1454 CodeActionsItem::CodeAction {
1455 excerpt_id: available.excerpt_id,
1456 action: available.action.clone(),
1457 provider: available.provider.clone(),
1458 }
1459 })
1460 }
1461 }
1462 (Some(tasks), None) => tasks
1463 .templates
1464 .get(index)
1465 .cloned()
1466 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1467 (None, Some(actions)) => {
1468 actions
1469 .get(index)
1470 .map(|available| CodeActionsItem::CodeAction {
1471 excerpt_id: available.excerpt_id,
1472 action: available.action.clone(),
1473 provider: available.provider.clone(),
1474 })
1475 }
1476 (None, None) => None,
1477 }
1478 }
1479}
1480
1481#[allow(clippy::large_enum_variant)]
1482#[derive(Clone)]
1483enum CodeActionsItem {
1484 Task(TaskSourceKind, ResolvedTask),
1485 CodeAction {
1486 excerpt_id: ExcerptId,
1487 action: CodeAction,
1488 provider: Arc<dyn CodeActionProvider>,
1489 },
1490}
1491
1492impl CodeActionsItem {
1493 fn as_task(&self) -> Option<&ResolvedTask> {
1494 let Self::Task(_, task) = self else {
1495 return None;
1496 };
1497 Some(task)
1498 }
1499 fn as_code_action(&self) -> Option<&CodeAction> {
1500 let Self::CodeAction { action, .. } = self else {
1501 return None;
1502 };
1503 Some(action)
1504 }
1505 fn label(&self) -> String {
1506 match self {
1507 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1508 Self::Task(_, task) => task.resolved_label.clone(),
1509 }
1510 }
1511}
1512
1513struct CodeActionsMenu {
1514 actions: CodeActionContents,
1515 buffer: Model<Buffer>,
1516 selected_item: usize,
1517 scroll_handle: UniformListScrollHandle,
1518 deployed_from_indicator: Option<DisplayRow>,
1519}
1520
1521impl CodeActionsMenu {
1522 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1523 self.selected_item = 0;
1524 self.scroll_handle.scroll_to_item(self.selected_item);
1525 cx.notify()
1526 }
1527
1528 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1529 if self.selected_item > 0 {
1530 self.selected_item -= 1;
1531 } else {
1532 self.selected_item = self.actions.len() - 1;
1533 }
1534 self.scroll_handle.scroll_to_item(self.selected_item);
1535 cx.notify();
1536 }
1537
1538 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1539 if self.selected_item + 1 < self.actions.len() {
1540 self.selected_item += 1;
1541 } else {
1542 self.selected_item = 0;
1543 }
1544 self.scroll_handle.scroll_to_item(self.selected_item);
1545 cx.notify();
1546 }
1547
1548 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1549 self.selected_item = self.actions.len() - 1;
1550 self.scroll_handle.scroll_to_item(self.selected_item);
1551 cx.notify()
1552 }
1553
1554 fn visible(&self) -> bool {
1555 !self.actions.is_empty()
1556 }
1557
1558 fn render(
1559 &self,
1560 cursor_position: DisplayPoint,
1561 _style: &EditorStyle,
1562 max_height: Pixels,
1563 cx: &mut ViewContext<Editor>,
1564 ) -> (ContextMenuOrigin, AnyElement) {
1565 let actions = self.actions.clone();
1566 let selected_item = self.selected_item;
1567 let element = uniform_list(
1568 cx.view().clone(),
1569 "code_actions_menu",
1570 self.actions.len(),
1571 move |_this, range, cx| {
1572 actions
1573 .iter()
1574 .skip(range.start)
1575 .take(range.end - range.start)
1576 .enumerate()
1577 .map(|(ix, action)| {
1578 let item_ix = range.start + ix;
1579 let selected = selected_item == item_ix;
1580 let colors = cx.theme().colors();
1581 div()
1582 .px_1()
1583 .rounded_md()
1584 .text_color(colors.text)
1585 .when(selected, |style| {
1586 style
1587 .bg(colors.element_active)
1588 .text_color(colors.text_accent)
1589 })
1590 .hover(|style| {
1591 style
1592 .bg(colors.element_hover)
1593 .text_color(colors.text_accent)
1594 })
1595 .whitespace_nowrap()
1596 .when_some(action.as_code_action(), |this, action| {
1597 this.on_mouse_down(
1598 MouseButton::Left,
1599 cx.listener(move |editor, _, cx| {
1600 cx.stop_propagation();
1601 if let Some(task) = editor.confirm_code_action(
1602 &ConfirmCodeAction {
1603 item_ix: Some(item_ix),
1604 },
1605 cx,
1606 ) {
1607 task.detach_and_log_err(cx)
1608 }
1609 }),
1610 )
1611 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1612 .child(SharedString::from(action.lsp_action.title.clone()))
1613 })
1614 .when_some(action.as_task(), |this, task| {
1615 this.on_mouse_down(
1616 MouseButton::Left,
1617 cx.listener(move |editor, _, cx| {
1618 cx.stop_propagation();
1619 if let Some(task) = editor.confirm_code_action(
1620 &ConfirmCodeAction {
1621 item_ix: Some(item_ix),
1622 },
1623 cx,
1624 ) {
1625 task.detach_and_log_err(cx)
1626 }
1627 }),
1628 )
1629 .child(SharedString::from(task.resolved_label.clone()))
1630 })
1631 })
1632 .collect()
1633 },
1634 )
1635 .elevation_1(cx)
1636 .p_1()
1637 .max_h(max_height)
1638 .occlude()
1639 .track_scroll(self.scroll_handle.clone())
1640 .with_width_from_item(
1641 self.actions
1642 .iter()
1643 .enumerate()
1644 .max_by_key(|(_, action)| match action {
1645 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1646 CodeActionsItem::CodeAction { action, .. } => {
1647 action.lsp_action.title.chars().count()
1648 }
1649 })
1650 .map(|(ix, _)| ix),
1651 )
1652 .with_sizing_behavior(ListSizingBehavior::Infer)
1653 .into_any_element();
1654
1655 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1656 ContextMenuOrigin::GutterIndicator(row)
1657 } else {
1658 ContextMenuOrigin::EditorPoint(cursor_position)
1659 };
1660
1661 (cursor_position, element)
1662 }
1663}
1664
1665#[derive(Debug)]
1666struct ActiveDiagnosticGroup {
1667 primary_range: Range<Anchor>,
1668 primary_message: String,
1669 group_id: usize,
1670 blocks: HashMap<CustomBlockId, Diagnostic>,
1671 is_valid: bool,
1672}
1673
1674#[derive(Serialize, Deserialize, Clone, Debug)]
1675pub struct ClipboardSelection {
1676 pub len: usize,
1677 pub is_entire_line: bool,
1678 pub first_line_indent: u32,
1679}
1680
1681#[derive(Debug)]
1682pub(crate) struct NavigationData {
1683 cursor_anchor: Anchor,
1684 cursor_position: Point,
1685 scroll_anchor: ScrollAnchor,
1686 scroll_top_row: u32,
1687}
1688
1689#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1690pub enum GotoDefinitionKind {
1691 Symbol,
1692 Declaration,
1693 Type,
1694 Implementation,
1695}
1696
1697#[derive(Debug, Clone)]
1698enum InlayHintRefreshReason {
1699 Toggle(bool),
1700 SettingsChange(InlayHintSettings),
1701 NewLinesShown,
1702 BufferEdited(HashSet<Arc<Language>>),
1703 RefreshRequested,
1704 ExcerptsRemoved(Vec<ExcerptId>),
1705}
1706
1707impl InlayHintRefreshReason {
1708 fn description(&self) -> &'static str {
1709 match self {
1710 Self::Toggle(_) => "toggle",
1711 Self::SettingsChange(_) => "settings change",
1712 Self::NewLinesShown => "new lines shown",
1713 Self::BufferEdited(_) => "buffer edited",
1714 Self::RefreshRequested => "refresh requested",
1715 Self::ExcerptsRemoved(_) => "excerpts removed",
1716 }
1717 }
1718}
1719
1720pub(crate) struct FocusedBlock {
1721 id: BlockId,
1722 focus_handle: WeakFocusHandle,
1723}
1724
1725impl Editor {
1726 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1727 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1728 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1729 Self::new(
1730 EditorMode::SingleLine { auto_width: false },
1731 buffer,
1732 None,
1733 false,
1734 cx,
1735 )
1736 }
1737
1738 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1739 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1740 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1741 Self::new(EditorMode::Full, buffer, None, false, cx)
1742 }
1743
1744 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1745 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1746 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1747 Self::new(
1748 EditorMode::SingleLine { auto_width: true },
1749 buffer,
1750 None,
1751 false,
1752 cx,
1753 )
1754 }
1755
1756 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1757 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1758 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1759 Self::new(
1760 EditorMode::AutoHeight { max_lines },
1761 buffer,
1762 None,
1763 false,
1764 cx,
1765 )
1766 }
1767
1768 pub fn for_buffer(
1769 buffer: Model<Buffer>,
1770 project: Option<Model<Project>>,
1771 cx: &mut ViewContext<Self>,
1772 ) -> Self {
1773 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1774 Self::new(EditorMode::Full, buffer, project, false, cx)
1775 }
1776
1777 pub fn for_multibuffer(
1778 buffer: Model<MultiBuffer>,
1779 project: Option<Model<Project>>,
1780 show_excerpt_controls: bool,
1781 cx: &mut ViewContext<Self>,
1782 ) -> Self {
1783 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1784 }
1785
1786 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1787 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1788 let mut clone = Self::new(
1789 self.mode,
1790 self.buffer.clone(),
1791 self.project.clone(),
1792 show_excerpt_controls,
1793 cx,
1794 );
1795 self.display_map.update(cx, |display_map, cx| {
1796 let snapshot = display_map.snapshot(cx);
1797 clone.display_map.update(cx, |display_map, cx| {
1798 display_map.set_state(&snapshot, cx);
1799 });
1800 });
1801 clone.selections.clone_state(&self.selections);
1802 clone.scroll_manager.clone_state(&self.scroll_manager);
1803 clone.searchable = self.searchable;
1804 clone
1805 }
1806
1807 pub fn new(
1808 mode: EditorMode,
1809 buffer: Model<MultiBuffer>,
1810 project: Option<Model<Project>>,
1811 show_excerpt_controls: bool,
1812 cx: &mut ViewContext<Self>,
1813 ) -> Self {
1814 let style = cx.text_style();
1815 let font_size = style.font_size.to_pixels(cx.rem_size());
1816 let editor = cx.view().downgrade();
1817 let fold_placeholder = FoldPlaceholder {
1818 constrain_width: true,
1819 render: Arc::new(move |fold_id, fold_range, cx| {
1820 let editor = editor.clone();
1821 div()
1822 .id(fold_id)
1823 .bg(cx.theme().colors().ghost_element_background)
1824 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1825 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1826 .rounded_sm()
1827 .size_full()
1828 .cursor_pointer()
1829 .child("⋯")
1830 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1831 .on_click(move |_, cx| {
1832 editor
1833 .update(cx, |editor, cx| {
1834 editor.unfold_ranges(
1835 [fold_range.start..fold_range.end],
1836 true,
1837 false,
1838 cx,
1839 );
1840 cx.stop_propagation();
1841 })
1842 .ok();
1843 })
1844 .into_any()
1845 }),
1846 merge_adjacent: true,
1847 };
1848 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1849 let display_map = cx.new_model(|cx| {
1850 DisplayMap::new(
1851 buffer.clone(),
1852 style.font(),
1853 font_size,
1854 None,
1855 show_excerpt_controls,
1856 file_header_size,
1857 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1858 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1859 fold_placeholder,
1860 cx,
1861 )
1862 });
1863
1864 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1865
1866 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1867
1868 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1869 .then(|| language_settings::SoftWrap::None);
1870
1871 let mut project_subscriptions = Vec::new();
1872 if mode == EditorMode::Full {
1873 if let Some(project) = project.as_ref() {
1874 if buffer.read(cx).is_singleton() {
1875 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1876 cx.emit(EditorEvent::TitleChanged);
1877 }));
1878 }
1879 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1880 if let project::Event::RefreshInlayHints = event {
1881 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1882 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1883 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1884 let focus_handle = editor.focus_handle(cx);
1885 if focus_handle.is_focused(cx) {
1886 let snapshot = buffer.read(cx).snapshot();
1887 for (range, snippet) in snippet_edits {
1888 let editor_range =
1889 language::range_from_lsp(*range).to_offset(&snapshot);
1890 editor
1891 .insert_snippet(&[editor_range], snippet.clone(), cx)
1892 .ok();
1893 }
1894 }
1895 }
1896 }
1897 }));
1898 if let Some(task_inventory) = project
1899 .read(cx)
1900 .task_store()
1901 .read(cx)
1902 .task_inventory()
1903 .cloned()
1904 {
1905 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1906 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1907 }));
1908 }
1909 }
1910 }
1911
1912 let inlay_hint_settings = inlay_hint_settings(
1913 selections.newest_anchor().head(),
1914 &buffer.read(cx).snapshot(cx),
1915 cx,
1916 );
1917 let focus_handle = cx.focus_handle();
1918 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1919 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1920 .detach();
1921 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1922 .detach();
1923 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1924
1925 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1926 Some(false)
1927 } else {
1928 None
1929 };
1930
1931 let mut code_action_providers = Vec::new();
1932 if let Some(project) = project.clone() {
1933 code_action_providers.push(Arc::new(project) as Arc<_>);
1934 }
1935
1936 let mut this = Self {
1937 focus_handle,
1938 show_cursor_when_unfocused: false,
1939 last_focused_descendant: None,
1940 buffer: buffer.clone(),
1941 display_map: display_map.clone(),
1942 selections,
1943 scroll_manager: ScrollManager::new(cx),
1944 columnar_selection_tail: None,
1945 add_selections_state: None,
1946 select_next_state: None,
1947 select_prev_state: None,
1948 selection_history: Default::default(),
1949 autoclose_regions: Default::default(),
1950 snippet_stack: Default::default(),
1951 select_larger_syntax_node_stack: Vec::new(),
1952 ime_transaction: Default::default(),
1953 active_diagnostics: None,
1954 soft_wrap_mode_override,
1955 completion_provider: project.clone().map(|project| Box::new(project) as _),
1956 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1957 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1958 project,
1959 blink_manager: blink_manager.clone(),
1960 show_local_selections: true,
1961 mode,
1962 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1963 show_gutter: mode == EditorMode::Full,
1964 show_line_numbers: None,
1965 use_relative_line_numbers: None,
1966 show_git_diff_gutter: None,
1967 show_code_actions: None,
1968 show_runnables: None,
1969 show_wrap_guides: None,
1970 show_indent_guides,
1971 placeholder_text: None,
1972 highlight_order: 0,
1973 highlighted_rows: HashMap::default(),
1974 background_highlights: Default::default(),
1975 gutter_highlights: TreeMap::default(),
1976 scrollbar_marker_state: ScrollbarMarkerState::default(),
1977 active_indent_guides_state: ActiveIndentGuidesState::default(),
1978 nav_history: None,
1979 context_menu: RwLock::new(None),
1980 mouse_context_menu: None,
1981 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1982 completion_tasks: Default::default(),
1983 signature_help_state: SignatureHelpState::default(),
1984 auto_signature_help: None,
1985 find_all_references_task_sources: Vec::new(),
1986 next_completion_id: 0,
1987 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1988 next_inlay_id: 0,
1989 code_action_providers,
1990 available_code_actions: Default::default(),
1991 code_actions_task: Default::default(),
1992 document_highlights_task: Default::default(),
1993 linked_editing_range_task: Default::default(),
1994 pending_rename: Default::default(),
1995 searchable: true,
1996 cursor_shape: EditorSettings::get_global(cx)
1997 .cursor_shape
1998 .unwrap_or_default(),
1999 current_line_highlight: None,
2000 autoindent_mode: Some(AutoindentMode::EachLine),
2001 collapse_matches: false,
2002 workspace: None,
2003 input_enabled: true,
2004 use_modal_editing: mode == EditorMode::Full,
2005 read_only: false,
2006 use_autoclose: true,
2007 use_auto_surround: true,
2008 auto_replace_emoji_shortcode: false,
2009 leader_peer_id: None,
2010 remote_id: None,
2011 hover_state: Default::default(),
2012 hovered_link_state: Default::default(),
2013 inline_completion_provider: None,
2014 active_inline_completion: None,
2015 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2016 expanded_hunks: ExpandedHunks::default(),
2017 gutter_hovered: false,
2018 pixel_position_of_newest_cursor: None,
2019 last_bounds: None,
2020 expect_bounds_change: None,
2021 gutter_dimensions: GutterDimensions::default(),
2022 style: None,
2023 show_cursor_names: false,
2024 hovered_cursors: Default::default(),
2025 next_editor_action_id: EditorActionId::default(),
2026 editor_actions: Rc::default(),
2027 show_inline_completions_override: None,
2028 enable_inline_completions: true,
2029 custom_context_menu: None,
2030 show_git_blame_gutter: false,
2031 show_git_blame_inline: false,
2032 show_selection_menu: None,
2033 show_git_blame_inline_delay_task: None,
2034 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2035 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2036 .session
2037 .restore_unsaved_buffers,
2038 blame: None,
2039 blame_subscription: None,
2040 file_header_size,
2041 tasks: Default::default(),
2042 _subscriptions: vec![
2043 cx.observe(&buffer, Self::on_buffer_changed),
2044 cx.subscribe(&buffer, Self::on_buffer_event),
2045 cx.observe(&display_map, Self::on_display_map_changed),
2046 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2047 cx.observe_global::<SettingsStore>(Self::settings_changed),
2048 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2049 cx.observe_window_activation(|editor, cx| {
2050 let active = cx.is_window_active();
2051 editor.blink_manager.update(cx, |blink_manager, cx| {
2052 if active {
2053 blink_manager.enable(cx);
2054 } else {
2055 blink_manager.disable(cx);
2056 }
2057 });
2058 }),
2059 ],
2060 tasks_update_task: None,
2061 linked_edit_ranges: Default::default(),
2062 previous_search_ranges: None,
2063 breadcrumb_header: None,
2064 focused_block: None,
2065 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2066 addons: HashMap::default(),
2067 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2068 };
2069 this.tasks_update_task = Some(this.refresh_runnables(cx));
2070 this._subscriptions.extend(project_subscriptions);
2071
2072 this.end_selection(cx);
2073 this.scroll_manager.show_scrollbar(cx);
2074
2075 if mode == EditorMode::Full {
2076 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2077 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2078
2079 if this.git_blame_inline_enabled {
2080 this.git_blame_inline_enabled = true;
2081 this.start_git_blame_inline(false, cx);
2082 }
2083 }
2084
2085 this.report_editor_event("open", None, cx);
2086 this
2087 }
2088
2089 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2090 self.mouse_context_menu
2091 .as_ref()
2092 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2093 }
2094
2095 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2096 let mut key_context = KeyContext::new_with_defaults();
2097 key_context.add("Editor");
2098 let mode = match self.mode {
2099 EditorMode::SingleLine { .. } => "single_line",
2100 EditorMode::AutoHeight { .. } => "auto_height",
2101 EditorMode::Full => "full",
2102 };
2103
2104 if EditorSettings::jupyter_enabled(cx) {
2105 key_context.add("jupyter");
2106 }
2107
2108 key_context.set("mode", mode);
2109 if self.pending_rename.is_some() {
2110 key_context.add("renaming");
2111 }
2112 if self.context_menu_visible() {
2113 match self.context_menu.read().as_ref() {
2114 Some(ContextMenu::Completions(_)) => {
2115 key_context.add("menu");
2116 key_context.add("showing_completions")
2117 }
2118 Some(ContextMenu::CodeActions(_)) => {
2119 key_context.add("menu");
2120 key_context.add("showing_code_actions")
2121 }
2122 None => {}
2123 }
2124 }
2125
2126 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2127 if !self.focus_handle(cx).contains_focused(cx)
2128 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2129 {
2130 for addon in self.addons.values() {
2131 addon.extend_key_context(&mut key_context, cx)
2132 }
2133 }
2134
2135 if let Some(extension) = self
2136 .buffer
2137 .read(cx)
2138 .as_singleton()
2139 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2140 {
2141 key_context.set("extension", extension.to_string());
2142 }
2143
2144 if self.has_active_inline_completion(cx) {
2145 key_context.add("copilot_suggestion");
2146 key_context.add("inline_completion");
2147 }
2148
2149 key_context
2150 }
2151
2152 pub fn new_file(
2153 workspace: &mut Workspace,
2154 _: &workspace::NewFile,
2155 cx: &mut ViewContext<Workspace>,
2156 ) {
2157 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2158 "Failed to create buffer",
2159 cx,
2160 |e, _| match e.error_code() {
2161 ErrorCode::RemoteUpgradeRequired => Some(format!(
2162 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2163 e.error_tag("required").unwrap_or("the latest version")
2164 )),
2165 _ => None,
2166 },
2167 );
2168 }
2169
2170 pub fn new_in_workspace(
2171 workspace: &mut Workspace,
2172 cx: &mut ViewContext<Workspace>,
2173 ) -> Task<Result<View<Editor>>> {
2174 let project = workspace.project().clone();
2175 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2176
2177 cx.spawn(|workspace, mut cx| async move {
2178 let buffer = create.await?;
2179 workspace.update(&mut cx, |workspace, cx| {
2180 let editor =
2181 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2182 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2183 editor
2184 })
2185 })
2186 }
2187
2188 fn new_file_vertical(
2189 workspace: &mut Workspace,
2190 _: &workspace::NewFileSplitVertical,
2191 cx: &mut ViewContext<Workspace>,
2192 ) {
2193 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2194 }
2195
2196 fn new_file_horizontal(
2197 workspace: &mut Workspace,
2198 _: &workspace::NewFileSplitHorizontal,
2199 cx: &mut ViewContext<Workspace>,
2200 ) {
2201 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2202 }
2203
2204 fn new_file_in_direction(
2205 workspace: &mut Workspace,
2206 direction: SplitDirection,
2207 cx: &mut ViewContext<Workspace>,
2208 ) {
2209 let project = workspace.project().clone();
2210 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2211
2212 cx.spawn(|workspace, mut cx| async move {
2213 let buffer = create.await?;
2214 workspace.update(&mut cx, move |workspace, cx| {
2215 workspace.split_item(
2216 direction,
2217 Box::new(
2218 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2219 ),
2220 cx,
2221 )
2222 })?;
2223 anyhow::Ok(())
2224 })
2225 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2226 ErrorCode::RemoteUpgradeRequired => Some(format!(
2227 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2228 e.error_tag("required").unwrap_or("the latest version")
2229 )),
2230 _ => None,
2231 });
2232 }
2233
2234 pub fn leader_peer_id(&self) -> Option<PeerId> {
2235 self.leader_peer_id
2236 }
2237
2238 pub fn buffer(&self) -> &Model<MultiBuffer> {
2239 &self.buffer
2240 }
2241
2242 pub fn workspace(&self) -> Option<View<Workspace>> {
2243 self.workspace.as_ref()?.0.upgrade()
2244 }
2245
2246 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2247 self.buffer().read(cx).title(cx)
2248 }
2249
2250 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2251 let git_blame_gutter_max_author_length = self
2252 .render_git_blame_gutter(cx)
2253 .then(|| {
2254 if let Some(blame) = self.blame.as_ref() {
2255 let max_author_length =
2256 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2257 Some(max_author_length)
2258 } else {
2259 None
2260 }
2261 })
2262 .flatten();
2263
2264 EditorSnapshot {
2265 mode: self.mode,
2266 show_gutter: self.show_gutter,
2267 show_line_numbers: self.show_line_numbers,
2268 show_git_diff_gutter: self.show_git_diff_gutter,
2269 show_code_actions: self.show_code_actions,
2270 show_runnables: self.show_runnables,
2271 git_blame_gutter_max_author_length,
2272 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2273 scroll_anchor: self.scroll_manager.anchor(),
2274 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2275 placeholder_text: self.placeholder_text.clone(),
2276 is_focused: self.focus_handle.is_focused(cx),
2277 current_line_highlight: self
2278 .current_line_highlight
2279 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2280 gutter_hovered: self.gutter_hovered,
2281 }
2282 }
2283
2284 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2285 self.buffer.read(cx).language_at(point, cx)
2286 }
2287
2288 pub fn file_at<T: ToOffset>(
2289 &self,
2290 point: T,
2291 cx: &AppContext,
2292 ) -> Option<Arc<dyn language::File>> {
2293 self.buffer.read(cx).read(cx).file_at(point).cloned()
2294 }
2295
2296 pub fn active_excerpt(
2297 &self,
2298 cx: &AppContext,
2299 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2300 self.buffer
2301 .read(cx)
2302 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2303 }
2304
2305 pub fn mode(&self) -> EditorMode {
2306 self.mode
2307 }
2308
2309 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2310 self.collaboration_hub.as_deref()
2311 }
2312
2313 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2314 self.collaboration_hub = Some(hub);
2315 }
2316
2317 pub fn set_custom_context_menu(
2318 &mut self,
2319 f: impl 'static
2320 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2321 ) {
2322 self.custom_context_menu = Some(Box::new(f))
2323 }
2324
2325 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2326 self.completion_provider = provider;
2327 }
2328
2329 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2330 self.semantics_provider.clone()
2331 }
2332
2333 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2334 self.semantics_provider = provider;
2335 }
2336
2337 pub fn set_inline_completion_provider<T>(
2338 &mut self,
2339 provider: Option<Model<T>>,
2340 cx: &mut ViewContext<Self>,
2341 ) where
2342 T: InlineCompletionProvider,
2343 {
2344 self.inline_completion_provider =
2345 provider.map(|provider| RegisteredInlineCompletionProvider {
2346 _subscription: cx.observe(&provider, |this, _, cx| {
2347 if this.focus_handle.is_focused(cx) {
2348 this.update_visible_inline_completion(cx);
2349 }
2350 }),
2351 provider: Arc::new(provider),
2352 });
2353 self.refresh_inline_completion(false, false, cx);
2354 }
2355
2356 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2357 self.placeholder_text.as_deref()
2358 }
2359
2360 pub fn set_placeholder_text(
2361 &mut self,
2362 placeholder_text: impl Into<Arc<str>>,
2363 cx: &mut ViewContext<Self>,
2364 ) {
2365 let placeholder_text = Some(placeholder_text.into());
2366 if self.placeholder_text != placeholder_text {
2367 self.placeholder_text = placeholder_text;
2368 cx.notify();
2369 }
2370 }
2371
2372 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2373 self.cursor_shape = cursor_shape;
2374
2375 // Disrupt blink for immediate user feedback that the cursor shape has changed
2376 self.blink_manager.update(cx, BlinkManager::show_cursor);
2377
2378 cx.notify();
2379 }
2380
2381 pub fn set_current_line_highlight(
2382 &mut self,
2383 current_line_highlight: Option<CurrentLineHighlight>,
2384 ) {
2385 self.current_line_highlight = current_line_highlight;
2386 }
2387
2388 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2389 self.collapse_matches = collapse_matches;
2390 }
2391
2392 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2393 if self.collapse_matches {
2394 return range.start..range.start;
2395 }
2396 range.clone()
2397 }
2398
2399 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2400 if self.display_map.read(cx).clip_at_line_ends != clip {
2401 self.display_map
2402 .update(cx, |map, _| map.clip_at_line_ends = clip);
2403 }
2404 }
2405
2406 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2407 self.input_enabled = input_enabled;
2408 }
2409
2410 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2411 self.enable_inline_completions = enabled;
2412 }
2413
2414 pub fn set_autoindent(&mut self, autoindent: bool) {
2415 if autoindent {
2416 self.autoindent_mode = Some(AutoindentMode::EachLine);
2417 } else {
2418 self.autoindent_mode = None;
2419 }
2420 }
2421
2422 pub fn read_only(&self, cx: &AppContext) -> bool {
2423 self.read_only || self.buffer.read(cx).read_only()
2424 }
2425
2426 pub fn set_read_only(&mut self, read_only: bool) {
2427 self.read_only = read_only;
2428 }
2429
2430 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2431 self.use_autoclose = autoclose;
2432 }
2433
2434 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2435 self.use_auto_surround = auto_surround;
2436 }
2437
2438 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2439 self.auto_replace_emoji_shortcode = auto_replace;
2440 }
2441
2442 pub fn toggle_inline_completions(
2443 &mut self,
2444 _: &ToggleInlineCompletions,
2445 cx: &mut ViewContext<Self>,
2446 ) {
2447 if self.show_inline_completions_override.is_some() {
2448 self.set_show_inline_completions(None, cx);
2449 } else {
2450 let cursor = self.selections.newest_anchor().head();
2451 if let Some((buffer, cursor_buffer_position)) =
2452 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2453 {
2454 let show_inline_completions =
2455 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2456 self.set_show_inline_completions(Some(show_inline_completions), cx);
2457 }
2458 }
2459 }
2460
2461 pub fn set_show_inline_completions(
2462 &mut self,
2463 show_inline_completions: Option<bool>,
2464 cx: &mut ViewContext<Self>,
2465 ) {
2466 self.show_inline_completions_override = show_inline_completions;
2467 self.refresh_inline_completion(false, true, cx);
2468 }
2469
2470 fn should_show_inline_completions(
2471 &self,
2472 buffer: &Model<Buffer>,
2473 buffer_position: language::Anchor,
2474 cx: &AppContext,
2475 ) -> bool {
2476 if let Some(provider) = self.inline_completion_provider() {
2477 if let Some(show_inline_completions) = self.show_inline_completions_override {
2478 show_inline_completions
2479 } else {
2480 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2481 }
2482 } else {
2483 false
2484 }
2485 }
2486
2487 pub fn set_use_modal_editing(&mut self, to: bool) {
2488 self.use_modal_editing = to;
2489 }
2490
2491 pub fn use_modal_editing(&self) -> bool {
2492 self.use_modal_editing
2493 }
2494
2495 fn selections_did_change(
2496 &mut self,
2497 local: bool,
2498 old_cursor_position: &Anchor,
2499 show_completions: bool,
2500 cx: &mut ViewContext<Self>,
2501 ) {
2502 cx.invalidate_character_coordinates();
2503
2504 // Copy selections to primary selection buffer
2505 #[cfg(target_os = "linux")]
2506 if local {
2507 let selections = self.selections.all::<usize>(cx);
2508 let buffer_handle = self.buffer.read(cx).read(cx);
2509
2510 let mut text = String::new();
2511 for (index, selection) in selections.iter().enumerate() {
2512 let text_for_selection = buffer_handle
2513 .text_for_range(selection.start..selection.end)
2514 .collect::<String>();
2515
2516 text.push_str(&text_for_selection);
2517 if index != selections.len() - 1 {
2518 text.push('\n');
2519 }
2520 }
2521
2522 if !text.is_empty() {
2523 cx.write_to_primary(ClipboardItem::new_string(text));
2524 }
2525 }
2526
2527 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2528 self.buffer.update(cx, |buffer, cx| {
2529 buffer.set_active_selections(
2530 &self.selections.disjoint_anchors(),
2531 self.selections.line_mode,
2532 self.cursor_shape,
2533 cx,
2534 )
2535 });
2536 }
2537 let display_map = self
2538 .display_map
2539 .update(cx, |display_map, cx| display_map.snapshot(cx));
2540 let buffer = &display_map.buffer_snapshot;
2541 self.add_selections_state = None;
2542 self.select_next_state = None;
2543 self.select_prev_state = None;
2544 self.select_larger_syntax_node_stack.clear();
2545 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2546 self.snippet_stack
2547 .invalidate(&self.selections.disjoint_anchors(), buffer);
2548 self.take_rename(false, cx);
2549
2550 let new_cursor_position = self.selections.newest_anchor().head();
2551
2552 self.push_to_nav_history(
2553 *old_cursor_position,
2554 Some(new_cursor_position.to_point(buffer)),
2555 cx,
2556 );
2557
2558 if local {
2559 let new_cursor_position = self.selections.newest_anchor().head();
2560 let mut context_menu = self.context_menu.write();
2561 let completion_menu = match context_menu.as_ref() {
2562 Some(ContextMenu::Completions(menu)) => Some(menu),
2563
2564 _ => {
2565 *context_menu = None;
2566 None
2567 }
2568 };
2569
2570 if let Some(completion_menu) = completion_menu {
2571 let cursor_position = new_cursor_position.to_offset(buffer);
2572 let (word_range, kind) =
2573 buffer.surrounding_word(completion_menu.initial_position, true);
2574 if kind == Some(CharKind::Word)
2575 && word_range.to_inclusive().contains(&cursor_position)
2576 {
2577 let mut completion_menu = completion_menu.clone();
2578 drop(context_menu);
2579
2580 let query = Self::completion_query(buffer, cursor_position);
2581 cx.spawn(move |this, mut cx| async move {
2582 completion_menu
2583 .filter(query.as_deref(), cx.background_executor().clone())
2584 .await;
2585
2586 this.update(&mut cx, |this, cx| {
2587 let mut context_menu = this.context_menu.write();
2588 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2589 return;
2590 };
2591
2592 if menu.id > completion_menu.id {
2593 return;
2594 }
2595
2596 *context_menu = Some(ContextMenu::Completions(completion_menu));
2597 drop(context_menu);
2598 cx.notify();
2599 })
2600 })
2601 .detach();
2602
2603 if show_completions {
2604 self.show_completions(&ShowCompletions { trigger: None }, cx);
2605 }
2606 } else {
2607 drop(context_menu);
2608 self.hide_context_menu(cx);
2609 }
2610 } else {
2611 drop(context_menu);
2612 }
2613
2614 hide_hover(self, cx);
2615
2616 if old_cursor_position.to_display_point(&display_map).row()
2617 != new_cursor_position.to_display_point(&display_map).row()
2618 {
2619 self.available_code_actions.take();
2620 }
2621 self.refresh_code_actions(cx);
2622 self.refresh_document_highlights(cx);
2623 refresh_matching_bracket_highlights(self, cx);
2624 self.discard_inline_completion(false, cx);
2625 linked_editing_ranges::refresh_linked_ranges(self, cx);
2626 if self.git_blame_inline_enabled {
2627 self.start_inline_blame_timer(cx);
2628 }
2629 }
2630
2631 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2632 cx.emit(EditorEvent::SelectionsChanged { local });
2633
2634 if self.selections.disjoint_anchors().len() == 1 {
2635 cx.emit(SearchEvent::ActiveMatchChanged)
2636 }
2637 cx.notify();
2638 }
2639
2640 pub fn change_selections<R>(
2641 &mut self,
2642 autoscroll: Option<Autoscroll>,
2643 cx: &mut ViewContext<Self>,
2644 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2645 ) -> R {
2646 self.change_selections_inner(autoscroll, true, cx, change)
2647 }
2648
2649 pub fn change_selections_inner<R>(
2650 &mut self,
2651 autoscroll: Option<Autoscroll>,
2652 request_completions: bool,
2653 cx: &mut ViewContext<Self>,
2654 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2655 ) -> R {
2656 let old_cursor_position = self.selections.newest_anchor().head();
2657 self.push_to_selection_history();
2658
2659 let (changed, result) = self.selections.change_with(cx, change);
2660
2661 if changed {
2662 if let Some(autoscroll) = autoscroll {
2663 self.request_autoscroll(autoscroll, cx);
2664 }
2665 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2666
2667 if self.should_open_signature_help_automatically(
2668 &old_cursor_position,
2669 self.signature_help_state.backspace_pressed(),
2670 cx,
2671 ) {
2672 self.show_signature_help(&ShowSignatureHelp, cx);
2673 }
2674 self.signature_help_state.set_backspace_pressed(false);
2675 }
2676
2677 result
2678 }
2679
2680 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2681 where
2682 I: IntoIterator<Item = (Range<S>, T)>,
2683 S: ToOffset,
2684 T: Into<Arc<str>>,
2685 {
2686 if self.read_only(cx) {
2687 return;
2688 }
2689
2690 self.buffer
2691 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2692 }
2693
2694 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2695 where
2696 I: IntoIterator<Item = (Range<S>, T)>,
2697 S: ToOffset,
2698 T: Into<Arc<str>>,
2699 {
2700 if self.read_only(cx) {
2701 return;
2702 }
2703
2704 self.buffer.update(cx, |buffer, cx| {
2705 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2706 });
2707 }
2708
2709 pub fn edit_with_block_indent<I, S, T>(
2710 &mut self,
2711 edits: I,
2712 original_indent_columns: Vec<u32>,
2713 cx: &mut ViewContext<Self>,
2714 ) where
2715 I: IntoIterator<Item = (Range<S>, T)>,
2716 S: ToOffset,
2717 T: Into<Arc<str>>,
2718 {
2719 if self.read_only(cx) {
2720 return;
2721 }
2722
2723 self.buffer.update(cx, |buffer, cx| {
2724 buffer.edit(
2725 edits,
2726 Some(AutoindentMode::Block {
2727 original_indent_columns,
2728 }),
2729 cx,
2730 )
2731 });
2732 }
2733
2734 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2735 self.hide_context_menu(cx);
2736
2737 match phase {
2738 SelectPhase::Begin {
2739 position,
2740 add,
2741 click_count,
2742 } => self.begin_selection(position, add, click_count, cx),
2743 SelectPhase::BeginColumnar {
2744 position,
2745 goal_column,
2746 reset,
2747 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2748 SelectPhase::Extend {
2749 position,
2750 click_count,
2751 } => self.extend_selection(position, click_count, cx),
2752 SelectPhase::Update {
2753 position,
2754 goal_column,
2755 scroll_delta,
2756 } => self.update_selection(position, goal_column, scroll_delta, cx),
2757 SelectPhase::End => self.end_selection(cx),
2758 }
2759 }
2760
2761 fn extend_selection(
2762 &mut self,
2763 position: DisplayPoint,
2764 click_count: usize,
2765 cx: &mut ViewContext<Self>,
2766 ) {
2767 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2768 let tail = self.selections.newest::<usize>(cx).tail();
2769 self.begin_selection(position, false, click_count, cx);
2770
2771 let position = position.to_offset(&display_map, Bias::Left);
2772 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2773
2774 let mut pending_selection = self
2775 .selections
2776 .pending_anchor()
2777 .expect("extend_selection not called with pending selection");
2778 if position >= tail {
2779 pending_selection.start = tail_anchor;
2780 } else {
2781 pending_selection.end = tail_anchor;
2782 pending_selection.reversed = true;
2783 }
2784
2785 let mut pending_mode = self.selections.pending_mode().unwrap();
2786 match &mut pending_mode {
2787 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2788 _ => {}
2789 }
2790
2791 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2792 s.set_pending(pending_selection, pending_mode)
2793 });
2794 }
2795
2796 fn begin_selection(
2797 &mut self,
2798 position: DisplayPoint,
2799 add: bool,
2800 click_count: usize,
2801 cx: &mut ViewContext<Self>,
2802 ) {
2803 if !self.focus_handle.is_focused(cx) {
2804 self.last_focused_descendant = None;
2805 cx.focus(&self.focus_handle);
2806 }
2807
2808 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2809 let buffer = &display_map.buffer_snapshot;
2810 let newest_selection = self.selections.newest_anchor().clone();
2811 let position = display_map.clip_point(position, Bias::Left);
2812
2813 let start;
2814 let end;
2815 let mode;
2816 let auto_scroll;
2817 match click_count {
2818 1 => {
2819 start = buffer.anchor_before(position.to_point(&display_map));
2820 end = start;
2821 mode = SelectMode::Character;
2822 auto_scroll = true;
2823 }
2824 2 => {
2825 let range = movement::surrounding_word(&display_map, position);
2826 start = buffer.anchor_before(range.start.to_point(&display_map));
2827 end = buffer.anchor_before(range.end.to_point(&display_map));
2828 mode = SelectMode::Word(start..end);
2829 auto_scroll = true;
2830 }
2831 3 => {
2832 let position = display_map
2833 .clip_point(position, Bias::Left)
2834 .to_point(&display_map);
2835 let line_start = display_map.prev_line_boundary(position).0;
2836 let next_line_start = buffer.clip_point(
2837 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2838 Bias::Left,
2839 );
2840 start = buffer.anchor_before(line_start);
2841 end = buffer.anchor_before(next_line_start);
2842 mode = SelectMode::Line(start..end);
2843 auto_scroll = true;
2844 }
2845 _ => {
2846 start = buffer.anchor_before(0);
2847 end = buffer.anchor_before(buffer.len());
2848 mode = SelectMode::All;
2849 auto_scroll = false;
2850 }
2851 }
2852
2853 let point_to_delete: Option<usize> = {
2854 let selected_points: Vec<Selection<Point>> =
2855 self.selections.disjoint_in_range(start..end, cx);
2856
2857 if !add || click_count > 1 {
2858 None
2859 } else if !selected_points.is_empty() {
2860 Some(selected_points[0].id)
2861 } else {
2862 let clicked_point_already_selected =
2863 self.selections.disjoint.iter().find(|selection| {
2864 selection.start.to_point(buffer) == start.to_point(buffer)
2865 || selection.end.to_point(buffer) == end.to_point(buffer)
2866 });
2867
2868 clicked_point_already_selected.map(|selection| selection.id)
2869 }
2870 };
2871
2872 let selections_count = self.selections.count();
2873
2874 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2875 if let Some(point_to_delete) = point_to_delete {
2876 s.delete(point_to_delete);
2877
2878 if selections_count == 1 {
2879 s.set_pending_anchor_range(start..end, mode);
2880 }
2881 } else {
2882 if !add {
2883 s.clear_disjoint();
2884 } else if click_count > 1 {
2885 s.delete(newest_selection.id)
2886 }
2887
2888 s.set_pending_anchor_range(start..end, mode);
2889 }
2890 });
2891 }
2892
2893 fn begin_columnar_selection(
2894 &mut self,
2895 position: DisplayPoint,
2896 goal_column: u32,
2897 reset: bool,
2898 cx: &mut ViewContext<Self>,
2899 ) {
2900 if !self.focus_handle.is_focused(cx) {
2901 self.last_focused_descendant = None;
2902 cx.focus(&self.focus_handle);
2903 }
2904
2905 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2906
2907 if reset {
2908 let pointer_position = display_map
2909 .buffer_snapshot
2910 .anchor_before(position.to_point(&display_map));
2911
2912 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2913 s.clear_disjoint();
2914 s.set_pending_anchor_range(
2915 pointer_position..pointer_position,
2916 SelectMode::Character,
2917 );
2918 });
2919 }
2920
2921 let tail = self.selections.newest::<Point>(cx).tail();
2922 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2923
2924 if !reset {
2925 self.select_columns(
2926 tail.to_display_point(&display_map),
2927 position,
2928 goal_column,
2929 &display_map,
2930 cx,
2931 );
2932 }
2933 }
2934
2935 fn update_selection(
2936 &mut self,
2937 position: DisplayPoint,
2938 goal_column: u32,
2939 scroll_delta: gpui::Point<f32>,
2940 cx: &mut ViewContext<Self>,
2941 ) {
2942 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2943
2944 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2945 let tail = tail.to_display_point(&display_map);
2946 self.select_columns(tail, position, goal_column, &display_map, cx);
2947 } else if let Some(mut pending) = self.selections.pending_anchor() {
2948 let buffer = self.buffer.read(cx).snapshot(cx);
2949 let head;
2950 let tail;
2951 let mode = self.selections.pending_mode().unwrap();
2952 match &mode {
2953 SelectMode::Character => {
2954 head = position.to_point(&display_map);
2955 tail = pending.tail().to_point(&buffer);
2956 }
2957 SelectMode::Word(original_range) => {
2958 let original_display_range = original_range.start.to_display_point(&display_map)
2959 ..original_range.end.to_display_point(&display_map);
2960 let original_buffer_range = original_display_range.start.to_point(&display_map)
2961 ..original_display_range.end.to_point(&display_map);
2962 if movement::is_inside_word(&display_map, position)
2963 || original_display_range.contains(&position)
2964 {
2965 let word_range = movement::surrounding_word(&display_map, position);
2966 if word_range.start < original_display_range.start {
2967 head = word_range.start.to_point(&display_map);
2968 } else {
2969 head = word_range.end.to_point(&display_map);
2970 }
2971 } else {
2972 head = position.to_point(&display_map);
2973 }
2974
2975 if head <= original_buffer_range.start {
2976 tail = original_buffer_range.end;
2977 } else {
2978 tail = original_buffer_range.start;
2979 }
2980 }
2981 SelectMode::Line(original_range) => {
2982 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2983
2984 let position = display_map
2985 .clip_point(position, Bias::Left)
2986 .to_point(&display_map);
2987 let line_start = display_map.prev_line_boundary(position).0;
2988 let next_line_start = buffer.clip_point(
2989 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2990 Bias::Left,
2991 );
2992
2993 if line_start < original_range.start {
2994 head = line_start
2995 } else {
2996 head = next_line_start
2997 }
2998
2999 if head <= original_range.start {
3000 tail = original_range.end;
3001 } else {
3002 tail = original_range.start;
3003 }
3004 }
3005 SelectMode::All => {
3006 return;
3007 }
3008 };
3009
3010 if head < tail {
3011 pending.start = buffer.anchor_before(head);
3012 pending.end = buffer.anchor_before(tail);
3013 pending.reversed = true;
3014 } else {
3015 pending.start = buffer.anchor_before(tail);
3016 pending.end = buffer.anchor_before(head);
3017 pending.reversed = false;
3018 }
3019
3020 self.change_selections(None, cx, |s| {
3021 s.set_pending(pending, mode);
3022 });
3023 } else {
3024 log::error!("update_selection dispatched with no pending selection");
3025 return;
3026 }
3027
3028 self.apply_scroll_delta(scroll_delta, cx);
3029 cx.notify();
3030 }
3031
3032 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3033 self.columnar_selection_tail.take();
3034 if self.selections.pending_anchor().is_some() {
3035 let selections = self.selections.all::<usize>(cx);
3036 self.change_selections(None, cx, |s| {
3037 s.select(selections);
3038 s.clear_pending();
3039 });
3040 }
3041 }
3042
3043 fn select_columns(
3044 &mut self,
3045 tail: DisplayPoint,
3046 head: DisplayPoint,
3047 goal_column: u32,
3048 display_map: &DisplaySnapshot,
3049 cx: &mut ViewContext<Self>,
3050 ) {
3051 let start_row = cmp::min(tail.row(), head.row());
3052 let end_row = cmp::max(tail.row(), head.row());
3053 let start_column = cmp::min(tail.column(), goal_column);
3054 let end_column = cmp::max(tail.column(), goal_column);
3055 let reversed = start_column < tail.column();
3056
3057 let selection_ranges = (start_row.0..=end_row.0)
3058 .map(DisplayRow)
3059 .filter_map(|row| {
3060 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3061 let start = display_map
3062 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3063 .to_point(display_map);
3064 let end = display_map
3065 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3066 .to_point(display_map);
3067 if reversed {
3068 Some(end..start)
3069 } else {
3070 Some(start..end)
3071 }
3072 } else {
3073 None
3074 }
3075 })
3076 .collect::<Vec<_>>();
3077
3078 self.change_selections(None, cx, |s| {
3079 s.select_ranges(selection_ranges);
3080 });
3081 cx.notify();
3082 }
3083
3084 pub fn has_pending_nonempty_selection(&self) -> bool {
3085 let pending_nonempty_selection = match self.selections.pending_anchor() {
3086 Some(Selection { start, end, .. }) => start != end,
3087 None => false,
3088 };
3089
3090 pending_nonempty_selection
3091 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3092 }
3093
3094 pub fn has_pending_selection(&self) -> bool {
3095 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3096 }
3097
3098 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3099 if self.clear_expanded_diff_hunks(cx) {
3100 cx.notify();
3101 return;
3102 }
3103 if self.dismiss_menus_and_popups(true, cx) {
3104 return;
3105 }
3106
3107 if self.mode == EditorMode::Full
3108 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3109 {
3110 return;
3111 }
3112
3113 cx.propagate();
3114 }
3115
3116 pub fn dismiss_menus_and_popups(
3117 &mut self,
3118 should_report_inline_completion_event: bool,
3119 cx: &mut ViewContext<Self>,
3120 ) -> bool {
3121 if self.take_rename(false, cx).is_some() {
3122 return true;
3123 }
3124
3125 if hide_hover(self, cx) {
3126 return true;
3127 }
3128
3129 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3130 return true;
3131 }
3132
3133 if self.hide_context_menu(cx).is_some() {
3134 return true;
3135 }
3136
3137 if self.mouse_context_menu.take().is_some() {
3138 return true;
3139 }
3140
3141 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3142 return true;
3143 }
3144
3145 if self.snippet_stack.pop().is_some() {
3146 return true;
3147 }
3148
3149 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3150 self.dismiss_diagnostics(cx);
3151 return true;
3152 }
3153
3154 false
3155 }
3156
3157 fn linked_editing_ranges_for(
3158 &self,
3159 selection: Range<text::Anchor>,
3160 cx: &AppContext,
3161 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3162 if self.linked_edit_ranges.is_empty() {
3163 return None;
3164 }
3165 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3166 selection.end.buffer_id.and_then(|end_buffer_id| {
3167 if selection.start.buffer_id != Some(end_buffer_id) {
3168 return None;
3169 }
3170 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3171 let snapshot = buffer.read(cx).snapshot();
3172 self.linked_edit_ranges
3173 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3174 .map(|ranges| (ranges, snapshot, buffer))
3175 })?;
3176 use text::ToOffset as TO;
3177 // find offset from the start of current range to current cursor position
3178 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3179
3180 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3181 let start_difference = start_offset - start_byte_offset;
3182 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3183 let end_difference = end_offset - start_byte_offset;
3184 // Current range has associated linked ranges.
3185 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3186 for range in linked_ranges.iter() {
3187 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3188 let end_offset = start_offset + end_difference;
3189 let start_offset = start_offset + start_difference;
3190 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3191 continue;
3192 }
3193 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3194 if s.start.buffer_id != selection.start.buffer_id
3195 || s.end.buffer_id != selection.end.buffer_id
3196 {
3197 return false;
3198 }
3199 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3200 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3201 }) {
3202 continue;
3203 }
3204 let start = buffer_snapshot.anchor_after(start_offset);
3205 let end = buffer_snapshot.anchor_after(end_offset);
3206 linked_edits
3207 .entry(buffer.clone())
3208 .or_default()
3209 .push(start..end);
3210 }
3211 Some(linked_edits)
3212 }
3213
3214 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3215 let text: Arc<str> = text.into();
3216
3217 if self.read_only(cx) {
3218 return;
3219 }
3220
3221 let selections = self.selections.all_adjusted(cx);
3222 let mut bracket_inserted = false;
3223 let mut edits = Vec::new();
3224 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3225 let mut new_selections = Vec::with_capacity(selections.len());
3226 let mut new_autoclose_regions = Vec::new();
3227 let snapshot = self.buffer.read(cx).read(cx);
3228
3229 for (selection, autoclose_region) in
3230 self.selections_with_autoclose_regions(selections, &snapshot)
3231 {
3232 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3233 // Determine if the inserted text matches the opening or closing
3234 // bracket of any of this language's bracket pairs.
3235 let mut bracket_pair = None;
3236 let mut is_bracket_pair_start = false;
3237 let mut is_bracket_pair_end = false;
3238 if !text.is_empty() {
3239 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3240 // and they are removing the character that triggered IME popup.
3241 for (pair, enabled) in scope.brackets() {
3242 if !pair.close && !pair.surround {
3243 continue;
3244 }
3245
3246 if enabled && pair.start.ends_with(text.as_ref()) {
3247 bracket_pair = Some(pair.clone());
3248 is_bracket_pair_start = true;
3249 break;
3250 }
3251 if pair.end.as_str() == text.as_ref() {
3252 bracket_pair = Some(pair.clone());
3253 is_bracket_pair_end = true;
3254 break;
3255 }
3256 }
3257 }
3258
3259 if let Some(bracket_pair) = bracket_pair {
3260 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3261 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3262 let auto_surround =
3263 self.use_auto_surround && snapshot_settings.use_auto_surround;
3264 if selection.is_empty() {
3265 if is_bracket_pair_start {
3266 let prefix_len = bracket_pair.start.len() - text.len();
3267
3268 // If the inserted text is a suffix of an opening bracket and the
3269 // selection is preceded by the rest of the opening bracket, then
3270 // insert the closing bracket.
3271 let following_text_allows_autoclose = snapshot
3272 .chars_at(selection.start)
3273 .next()
3274 .map_or(true, |c| scope.should_autoclose_before(c));
3275 let preceding_text_matches_prefix = prefix_len == 0
3276 || (selection.start.column >= (prefix_len as u32)
3277 && snapshot.contains_str_at(
3278 Point::new(
3279 selection.start.row,
3280 selection.start.column - (prefix_len as u32),
3281 ),
3282 &bracket_pair.start[..prefix_len],
3283 ));
3284
3285 if autoclose
3286 && bracket_pair.close
3287 && following_text_allows_autoclose
3288 && preceding_text_matches_prefix
3289 {
3290 let anchor = snapshot.anchor_before(selection.end);
3291 new_selections.push((selection.map(|_| anchor), text.len()));
3292 new_autoclose_regions.push((
3293 anchor,
3294 text.len(),
3295 selection.id,
3296 bracket_pair.clone(),
3297 ));
3298 edits.push((
3299 selection.range(),
3300 format!("{}{}", text, bracket_pair.end).into(),
3301 ));
3302 bracket_inserted = true;
3303 continue;
3304 }
3305 }
3306
3307 if let Some(region) = autoclose_region {
3308 // If the selection is followed by an auto-inserted closing bracket,
3309 // then don't insert that closing bracket again; just move the selection
3310 // past the closing bracket.
3311 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3312 && text.as_ref() == region.pair.end.as_str();
3313 if should_skip {
3314 let anchor = snapshot.anchor_after(selection.end);
3315 new_selections
3316 .push((selection.map(|_| anchor), region.pair.end.len()));
3317 continue;
3318 }
3319 }
3320
3321 let always_treat_brackets_as_autoclosed = snapshot
3322 .settings_at(selection.start, cx)
3323 .always_treat_brackets_as_autoclosed;
3324 if always_treat_brackets_as_autoclosed
3325 && is_bracket_pair_end
3326 && snapshot.contains_str_at(selection.end, text.as_ref())
3327 {
3328 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3329 // and the inserted text is a closing bracket and the selection is followed
3330 // by the closing bracket then move the selection past the closing bracket.
3331 let anchor = snapshot.anchor_after(selection.end);
3332 new_selections.push((selection.map(|_| anchor), text.len()));
3333 continue;
3334 }
3335 }
3336 // If an opening bracket is 1 character long and is typed while
3337 // text is selected, then surround that text with the bracket pair.
3338 else if auto_surround
3339 && bracket_pair.surround
3340 && is_bracket_pair_start
3341 && bracket_pair.start.chars().count() == 1
3342 {
3343 edits.push((selection.start..selection.start, text.clone()));
3344 edits.push((
3345 selection.end..selection.end,
3346 bracket_pair.end.as_str().into(),
3347 ));
3348 bracket_inserted = true;
3349 new_selections.push((
3350 Selection {
3351 id: selection.id,
3352 start: snapshot.anchor_after(selection.start),
3353 end: snapshot.anchor_before(selection.end),
3354 reversed: selection.reversed,
3355 goal: selection.goal,
3356 },
3357 0,
3358 ));
3359 continue;
3360 }
3361 }
3362 }
3363
3364 if self.auto_replace_emoji_shortcode
3365 && selection.is_empty()
3366 && text.as_ref().ends_with(':')
3367 {
3368 if let Some(possible_emoji_short_code) =
3369 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3370 {
3371 if !possible_emoji_short_code.is_empty() {
3372 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3373 let emoji_shortcode_start = Point::new(
3374 selection.start.row,
3375 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3376 );
3377
3378 // Remove shortcode from buffer
3379 edits.push((
3380 emoji_shortcode_start..selection.start,
3381 "".to_string().into(),
3382 ));
3383 new_selections.push((
3384 Selection {
3385 id: selection.id,
3386 start: snapshot.anchor_after(emoji_shortcode_start),
3387 end: snapshot.anchor_before(selection.start),
3388 reversed: selection.reversed,
3389 goal: selection.goal,
3390 },
3391 0,
3392 ));
3393
3394 // Insert emoji
3395 let selection_start_anchor = snapshot.anchor_after(selection.start);
3396 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3397 edits.push((selection.start..selection.end, emoji.to_string().into()));
3398
3399 continue;
3400 }
3401 }
3402 }
3403 }
3404
3405 // If not handling any auto-close operation, then just replace the selected
3406 // text with the given input and move the selection to the end of the
3407 // newly inserted text.
3408 let anchor = snapshot.anchor_after(selection.end);
3409 if !self.linked_edit_ranges.is_empty() {
3410 let start_anchor = snapshot.anchor_before(selection.start);
3411
3412 let is_word_char = text.chars().next().map_or(true, |char| {
3413 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3414 classifier.is_word(char)
3415 });
3416
3417 if is_word_char {
3418 if let Some(ranges) = self
3419 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3420 {
3421 for (buffer, edits) in ranges {
3422 linked_edits
3423 .entry(buffer.clone())
3424 .or_default()
3425 .extend(edits.into_iter().map(|range| (range, text.clone())));
3426 }
3427 }
3428 }
3429 }
3430
3431 new_selections.push((selection.map(|_| anchor), 0));
3432 edits.push((selection.start..selection.end, text.clone()));
3433 }
3434
3435 drop(snapshot);
3436
3437 self.transact(cx, |this, cx| {
3438 this.buffer.update(cx, |buffer, cx| {
3439 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3440 });
3441 for (buffer, edits) in linked_edits {
3442 buffer.update(cx, |buffer, cx| {
3443 let snapshot = buffer.snapshot();
3444 let edits = edits
3445 .into_iter()
3446 .map(|(range, text)| {
3447 use text::ToPoint as TP;
3448 let end_point = TP::to_point(&range.end, &snapshot);
3449 let start_point = TP::to_point(&range.start, &snapshot);
3450 (start_point..end_point, text)
3451 })
3452 .sorted_by_key(|(range, _)| range.start)
3453 .collect::<Vec<_>>();
3454 buffer.edit(edits, None, cx);
3455 })
3456 }
3457 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3458 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3459 let snapshot = this.buffer.read(cx).read(cx);
3460 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3461 .zip(new_selection_deltas)
3462 .map(|(selection, delta)| Selection {
3463 id: selection.id,
3464 start: selection.start + delta,
3465 end: selection.end + delta,
3466 reversed: selection.reversed,
3467 goal: SelectionGoal::None,
3468 })
3469 .collect::<Vec<_>>();
3470
3471 let mut i = 0;
3472 for (position, delta, selection_id, pair) in new_autoclose_regions {
3473 let position = position.to_offset(&snapshot) + delta;
3474 let start = snapshot.anchor_before(position);
3475 let end = snapshot.anchor_after(position);
3476 while let Some(existing_state) = this.autoclose_regions.get(i) {
3477 match existing_state.range.start.cmp(&start, &snapshot) {
3478 Ordering::Less => i += 1,
3479 Ordering::Greater => break,
3480 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3481 Ordering::Less => i += 1,
3482 Ordering::Equal => break,
3483 Ordering::Greater => break,
3484 },
3485 }
3486 }
3487 this.autoclose_regions.insert(
3488 i,
3489 AutocloseRegion {
3490 selection_id,
3491 range: start..end,
3492 pair,
3493 },
3494 );
3495 }
3496
3497 drop(snapshot);
3498 let had_active_inline_completion = this.has_active_inline_completion(cx);
3499 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3500 s.select(new_selections)
3501 });
3502
3503 if !bracket_inserted {
3504 if let Some(on_type_format_task) =
3505 this.trigger_on_type_formatting(text.to_string(), cx)
3506 {
3507 on_type_format_task.detach_and_log_err(cx);
3508 }
3509 }
3510
3511 let editor_settings = EditorSettings::get_global(cx);
3512 if bracket_inserted
3513 && (editor_settings.auto_signature_help
3514 || editor_settings.show_signature_help_after_edits)
3515 {
3516 this.show_signature_help(&ShowSignatureHelp, cx);
3517 }
3518
3519 let trigger_in_words = !had_active_inline_completion;
3520 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3521 linked_editing_ranges::refresh_linked_ranges(this, cx);
3522 this.refresh_inline_completion(true, false, cx);
3523 });
3524 }
3525
3526 fn find_possible_emoji_shortcode_at_position(
3527 snapshot: &MultiBufferSnapshot,
3528 position: Point,
3529 ) -> Option<String> {
3530 let mut chars = Vec::new();
3531 let mut found_colon = false;
3532 for char in snapshot.reversed_chars_at(position).take(100) {
3533 // Found a possible emoji shortcode in the middle of the buffer
3534 if found_colon {
3535 if char.is_whitespace() {
3536 chars.reverse();
3537 return Some(chars.iter().collect());
3538 }
3539 // If the previous character is not a whitespace, we are in the middle of a word
3540 // and we only want to complete the shortcode if the word is made up of other emojis
3541 let mut containing_word = String::new();
3542 for ch in snapshot
3543 .reversed_chars_at(position)
3544 .skip(chars.len() + 1)
3545 .take(100)
3546 {
3547 if ch.is_whitespace() {
3548 break;
3549 }
3550 containing_word.push(ch);
3551 }
3552 let containing_word = containing_word.chars().rev().collect::<String>();
3553 if util::word_consists_of_emojis(containing_word.as_str()) {
3554 chars.reverse();
3555 return Some(chars.iter().collect());
3556 }
3557 }
3558
3559 if char.is_whitespace() || !char.is_ascii() {
3560 return None;
3561 }
3562 if char == ':' {
3563 found_colon = true;
3564 } else {
3565 chars.push(char);
3566 }
3567 }
3568 // Found a possible emoji shortcode at the beginning of the buffer
3569 chars.reverse();
3570 Some(chars.iter().collect())
3571 }
3572
3573 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3574 self.transact(cx, |this, cx| {
3575 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3576 let selections = this.selections.all::<usize>(cx);
3577 let multi_buffer = this.buffer.read(cx);
3578 let buffer = multi_buffer.snapshot(cx);
3579 selections
3580 .iter()
3581 .map(|selection| {
3582 let start_point = selection.start.to_point(&buffer);
3583 let mut indent =
3584 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3585 indent.len = cmp::min(indent.len, start_point.column);
3586 let start = selection.start;
3587 let end = selection.end;
3588 let selection_is_empty = start == end;
3589 let language_scope = buffer.language_scope_at(start);
3590 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3591 &language_scope
3592 {
3593 let leading_whitespace_len = buffer
3594 .reversed_chars_at(start)
3595 .take_while(|c| c.is_whitespace() && *c != '\n')
3596 .map(|c| c.len_utf8())
3597 .sum::<usize>();
3598
3599 let trailing_whitespace_len = buffer
3600 .chars_at(end)
3601 .take_while(|c| c.is_whitespace() && *c != '\n')
3602 .map(|c| c.len_utf8())
3603 .sum::<usize>();
3604
3605 let insert_extra_newline =
3606 language.brackets().any(|(pair, enabled)| {
3607 let pair_start = pair.start.trim_end();
3608 let pair_end = pair.end.trim_start();
3609
3610 enabled
3611 && pair.newline
3612 && buffer.contains_str_at(
3613 end + trailing_whitespace_len,
3614 pair_end,
3615 )
3616 && buffer.contains_str_at(
3617 (start - leading_whitespace_len)
3618 .saturating_sub(pair_start.len()),
3619 pair_start,
3620 )
3621 });
3622
3623 // Comment extension on newline is allowed only for cursor selections
3624 let comment_delimiter = maybe!({
3625 if !selection_is_empty {
3626 return None;
3627 }
3628
3629 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3630 return None;
3631 }
3632
3633 let delimiters = language.line_comment_prefixes();
3634 let max_len_of_delimiter =
3635 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3636 let (snapshot, range) =
3637 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3638
3639 let mut index_of_first_non_whitespace = 0;
3640 let comment_candidate = snapshot
3641 .chars_for_range(range)
3642 .skip_while(|c| {
3643 let should_skip = c.is_whitespace();
3644 if should_skip {
3645 index_of_first_non_whitespace += 1;
3646 }
3647 should_skip
3648 })
3649 .take(max_len_of_delimiter)
3650 .collect::<String>();
3651 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3652 comment_candidate.starts_with(comment_prefix.as_ref())
3653 })?;
3654 let cursor_is_placed_after_comment_marker =
3655 index_of_first_non_whitespace + comment_prefix.len()
3656 <= start_point.column as usize;
3657 if cursor_is_placed_after_comment_marker {
3658 Some(comment_prefix.clone())
3659 } else {
3660 None
3661 }
3662 });
3663 (comment_delimiter, insert_extra_newline)
3664 } else {
3665 (None, false)
3666 };
3667
3668 let capacity_for_delimiter = comment_delimiter
3669 .as_deref()
3670 .map(str::len)
3671 .unwrap_or_default();
3672 let mut new_text =
3673 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3674 new_text.push('\n');
3675 new_text.extend(indent.chars());
3676 if let Some(delimiter) = &comment_delimiter {
3677 new_text.push_str(delimiter);
3678 }
3679 if insert_extra_newline {
3680 new_text = new_text.repeat(2);
3681 }
3682
3683 let anchor = buffer.anchor_after(end);
3684 let new_selection = selection.map(|_| anchor);
3685 (
3686 (start..end, new_text),
3687 (insert_extra_newline, new_selection),
3688 )
3689 })
3690 .unzip()
3691 };
3692
3693 this.edit_with_autoindent(edits, cx);
3694 let buffer = this.buffer.read(cx).snapshot(cx);
3695 let new_selections = selection_fixup_info
3696 .into_iter()
3697 .map(|(extra_newline_inserted, new_selection)| {
3698 let mut cursor = new_selection.end.to_point(&buffer);
3699 if extra_newline_inserted {
3700 cursor.row -= 1;
3701 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3702 }
3703 new_selection.map(|_| cursor)
3704 })
3705 .collect();
3706
3707 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3708 this.refresh_inline_completion(true, false, cx);
3709 });
3710 }
3711
3712 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3713 let buffer = self.buffer.read(cx);
3714 let snapshot = buffer.snapshot(cx);
3715
3716 let mut edits = Vec::new();
3717 let mut rows = Vec::new();
3718
3719 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3720 let cursor = selection.head();
3721 let row = cursor.row;
3722
3723 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3724
3725 let newline = "\n".to_string();
3726 edits.push((start_of_line..start_of_line, newline));
3727
3728 rows.push(row + rows_inserted as u32);
3729 }
3730
3731 self.transact(cx, |editor, cx| {
3732 editor.edit(edits, cx);
3733
3734 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3735 let mut index = 0;
3736 s.move_cursors_with(|map, _, _| {
3737 let row = rows[index];
3738 index += 1;
3739
3740 let point = Point::new(row, 0);
3741 let boundary = map.next_line_boundary(point).1;
3742 let clipped = map.clip_point(boundary, Bias::Left);
3743
3744 (clipped, SelectionGoal::None)
3745 });
3746 });
3747
3748 let mut indent_edits = Vec::new();
3749 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3750 for row in rows {
3751 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3752 for (row, indent) in indents {
3753 if indent.len == 0 {
3754 continue;
3755 }
3756
3757 let text = match indent.kind {
3758 IndentKind::Space => " ".repeat(indent.len as usize),
3759 IndentKind::Tab => "\t".repeat(indent.len as usize),
3760 };
3761 let point = Point::new(row.0, 0);
3762 indent_edits.push((point..point, text));
3763 }
3764 }
3765 editor.edit(indent_edits, cx);
3766 });
3767 }
3768
3769 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3770 let buffer = self.buffer.read(cx);
3771 let snapshot = buffer.snapshot(cx);
3772
3773 let mut edits = Vec::new();
3774 let mut rows = Vec::new();
3775 let mut rows_inserted = 0;
3776
3777 for selection in self.selections.all_adjusted(cx) {
3778 let cursor = selection.head();
3779 let row = cursor.row;
3780
3781 let point = Point::new(row + 1, 0);
3782 let start_of_line = snapshot.clip_point(point, Bias::Left);
3783
3784 let newline = "\n".to_string();
3785 edits.push((start_of_line..start_of_line, newline));
3786
3787 rows_inserted += 1;
3788 rows.push(row + rows_inserted);
3789 }
3790
3791 self.transact(cx, |editor, cx| {
3792 editor.edit(edits, cx);
3793
3794 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3795 let mut index = 0;
3796 s.move_cursors_with(|map, _, _| {
3797 let row = rows[index];
3798 index += 1;
3799
3800 let point = Point::new(row, 0);
3801 let boundary = map.next_line_boundary(point).1;
3802 let clipped = map.clip_point(boundary, Bias::Left);
3803
3804 (clipped, SelectionGoal::None)
3805 });
3806 });
3807
3808 let mut indent_edits = Vec::new();
3809 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3810 for row in rows {
3811 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3812 for (row, indent) in indents {
3813 if indent.len == 0 {
3814 continue;
3815 }
3816
3817 let text = match indent.kind {
3818 IndentKind::Space => " ".repeat(indent.len as usize),
3819 IndentKind::Tab => "\t".repeat(indent.len as usize),
3820 };
3821 let point = Point::new(row.0, 0);
3822 indent_edits.push((point..point, text));
3823 }
3824 }
3825 editor.edit(indent_edits, cx);
3826 });
3827 }
3828
3829 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3830 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3831 original_indent_columns: Vec::new(),
3832 });
3833 self.insert_with_autoindent_mode(text, autoindent, cx);
3834 }
3835
3836 fn insert_with_autoindent_mode(
3837 &mut self,
3838 text: &str,
3839 autoindent_mode: Option<AutoindentMode>,
3840 cx: &mut ViewContext<Self>,
3841 ) {
3842 if self.read_only(cx) {
3843 return;
3844 }
3845
3846 let text: Arc<str> = text.into();
3847 self.transact(cx, |this, cx| {
3848 let old_selections = this.selections.all_adjusted(cx);
3849 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3850 let anchors = {
3851 let snapshot = buffer.read(cx);
3852 old_selections
3853 .iter()
3854 .map(|s| {
3855 let anchor = snapshot.anchor_after(s.head());
3856 s.map(|_| anchor)
3857 })
3858 .collect::<Vec<_>>()
3859 };
3860 buffer.edit(
3861 old_selections
3862 .iter()
3863 .map(|s| (s.start..s.end, text.clone())),
3864 autoindent_mode,
3865 cx,
3866 );
3867 anchors
3868 });
3869
3870 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3871 s.select_anchors(selection_anchors);
3872 })
3873 });
3874 }
3875
3876 fn trigger_completion_on_input(
3877 &mut self,
3878 text: &str,
3879 trigger_in_words: bool,
3880 cx: &mut ViewContext<Self>,
3881 ) {
3882 if self.is_completion_trigger(text, trigger_in_words, cx) {
3883 self.show_completions(
3884 &ShowCompletions {
3885 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3886 },
3887 cx,
3888 );
3889 } else {
3890 self.hide_context_menu(cx);
3891 }
3892 }
3893
3894 fn is_completion_trigger(
3895 &self,
3896 text: &str,
3897 trigger_in_words: bool,
3898 cx: &mut ViewContext<Self>,
3899 ) -> bool {
3900 let position = self.selections.newest_anchor().head();
3901 let multibuffer = self.buffer.read(cx);
3902 let Some(buffer) = position
3903 .buffer_id
3904 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3905 else {
3906 return false;
3907 };
3908
3909 if let Some(completion_provider) = &self.completion_provider {
3910 completion_provider.is_completion_trigger(
3911 &buffer,
3912 position.text_anchor,
3913 text,
3914 trigger_in_words,
3915 cx,
3916 )
3917 } else {
3918 false
3919 }
3920 }
3921
3922 /// If any empty selections is touching the start of its innermost containing autoclose
3923 /// region, expand it to select the brackets.
3924 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3925 let selections = self.selections.all::<usize>(cx);
3926 let buffer = self.buffer.read(cx).read(cx);
3927 let new_selections = self
3928 .selections_with_autoclose_regions(selections, &buffer)
3929 .map(|(mut selection, region)| {
3930 if !selection.is_empty() {
3931 return selection;
3932 }
3933
3934 if let Some(region) = region {
3935 let mut range = region.range.to_offset(&buffer);
3936 if selection.start == range.start && range.start >= region.pair.start.len() {
3937 range.start -= region.pair.start.len();
3938 if buffer.contains_str_at(range.start, ®ion.pair.start)
3939 && buffer.contains_str_at(range.end, ®ion.pair.end)
3940 {
3941 range.end += region.pair.end.len();
3942 selection.start = range.start;
3943 selection.end = range.end;
3944
3945 return selection;
3946 }
3947 }
3948 }
3949
3950 let always_treat_brackets_as_autoclosed = buffer
3951 .settings_at(selection.start, cx)
3952 .always_treat_brackets_as_autoclosed;
3953
3954 if !always_treat_brackets_as_autoclosed {
3955 return selection;
3956 }
3957
3958 if let Some(scope) = buffer.language_scope_at(selection.start) {
3959 for (pair, enabled) in scope.brackets() {
3960 if !enabled || !pair.close {
3961 continue;
3962 }
3963
3964 if buffer.contains_str_at(selection.start, &pair.end) {
3965 let pair_start_len = pair.start.len();
3966 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3967 {
3968 selection.start -= pair_start_len;
3969 selection.end += pair.end.len();
3970
3971 return selection;
3972 }
3973 }
3974 }
3975 }
3976
3977 selection
3978 })
3979 .collect();
3980
3981 drop(buffer);
3982 self.change_selections(None, cx, |selections| selections.select(new_selections));
3983 }
3984
3985 /// Iterate the given selections, and for each one, find the smallest surrounding
3986 /// autoclose region. This uses the ordering of the selections and the autoclose
3987 /// regions to avoid repeated comparisons.
3988 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3989 &'a self,
3990 selections: impl IntoIterator<Item = Selection<D>>,
3991 buffer: &'a MultiBufferSnapshot,
3992 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3993 let mut i = 0;
3994 let mut regions = self.autoclose_regions.as_slice();
3995 selections.into_iter().map(move |selection| {
3996 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3997
3998 let mut enclosing = None;
3999 while let Some(pair_state) = regions.get(i) {
4000 if pair_state.range.end.to_offset(buffer) < range.start {
4001 regions = ®ions[i + 1..];
4002 i = 0;
4003 } else if pair_state.range.start.to_offset(buffer) > range.end {
4004 break;
4005 } else {
4006 if pair_state.selection_id == selection.id {
4007 enclosing = Some(pair_state);
4008 }
4009 i += 1;
4010 }
4011 }
4012
4013 (selection.clone(), enclosing)
4014 })
4015 }
4016
4017 /// Remove any autoclose regions that no longer contain their selection.
4018 fn invalidate_autoclose_regions(
4019 &mut self,
4020 mut selections: &[Selection<Anchor>],
4021 buffer: &MultiBufferSnapshot,
4022 ) {
4023 self.autoclose_regions.retain(|state| {
4024 let mut i = 0;
4025 while let Some(selection) = selections.get(i) {
4026 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4027 selections = &selections[1..];
4028 continue;
4029 }
4030 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4031 break;
4032 }
4033 if selection.id == state.selection_id {
4034 return true;
4035 } else {
4036 i += 1;
4037 }
4038 }
4039 false
4040 });
4041 }
4042
4043 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4044 let offset = position.to_offset(buffer);
4045 let (word_range, kind) = buffer.surrounding_word(offset, true);
4046 if offset > word_range.start && kind == Some(CharKind::Word) {
4047 Some(
4048 buffer
4049 .text_for_range(word_range.start..offset)
4050 .collect::<String>(),
4051 )
4052 } else {
4053 None
4054 }
4055 }
4056
4057 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4058 self.refresh_inlay_hints(
4059 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4060 cx,
4061 );
4062 }
4063
4064 pub fn inlay_hints_enabled(&self) -> bool {
4065 self.inlay_hint_cache.enabled
4066 }
4067
4068 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4069 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4070 return;
4071 }
4072
4073 let reason_description = reason.description();
4074 let ignore_debounce = matches!(
4075 reason,
4076 InlayHintRefreshReason::SettingsChange(_)
4077 | InlayHintRefreshReason::Toggle(_)
4078 | InlayHintRefreshReason::ExcerptsRemoved(_)
4079 );
4080 let (invalidate_cache, required_languages) = match reason {
4081 InlayHintRefreshReason::Toggle(enabled) => {
4082 self.inlay_hint_cache.enabled = enabled;
4083 if enabled {
4084 (InvalidationStrategy::RefreshRequested, None)
4085 } else {
4086 self.inlay_hint_cache.clear();
4087 self.splice_inlays(
4088 self.visible_inlay_hints(cx)
4089 .iter()
4090 .map(|inlay| inlay.id)
4091 .collect(),
4092 Vec::new(),
4093 cx,
4094 );
4095 return;
4096 }
4097 }
4098 InlayHintRefreshReason::SettingsChange(new_settings) => {
4099 match self.inlay_hint_cache.update_settings(
4100 &self.buffer,
4101 new_settings,
4102 self.visible_inlay_hints(cx),
4103 cx,
4104 ) {
4105 ControlFlow::Break(Some(InlaySplice {
4106 to_remove,
4107 to_insert,
4108 })) => {
4109 self.splice_inlays(to_remove, to_insert, cx);
4110 return;
4111 }
4112 ControlFlow::Break(None) => return,
4113 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4114 }
4115 }
4116 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4117 if let Some(InlaySplice {
4118 to_remove,
4119 to_insert,
4120 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4121 {
4122 self.splice_inlays(to_remove, to_insert, cx);
4123 }
4124 return;
4125 }
4126 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4127 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4128 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4129 }
4130 InlayHintRefreshReason::RefreshRequested => {
4131 (InvalidationStrategy::RefreshRequested, None)
4132 }
4133 };
4134
4135 if let Some(InlaySplice {
4136 to_remove,
4137 to_insert,
4138 }) = self.inlay_hint_cache.spawn_hint_refresh(
4139 reason_description,
4140 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4141 invalidate_cache,
4142 ignore_debounce,
4143 cx,
4144 ) {
4145 self.splice_inlays(to_remove, to_insert, cx);
4146 }
4147 }
4148
4149 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4150 self.display_map
4151 .read(cx)
4152 .current_inlays()
4153 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4154 .cloned()
4155 .collect()
4156 }
4157
4158 pub fn excerpts_for_inlay_hints_query(
4159 &self,
4160 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4161 cx: &mut ViewContext<Editor>,
4162 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4163 let Some(project) = self.project.as_ref() else {
4164 return HashMap::default();
4165 };
4166 let project = project.read(cx);
4167 let multi_buffer = self.buffer().read(cx);
4168 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4169 let multi_buffer_visible_start = self
4170 .scroll_manager
4171 .anchor()
4172 .anchor
4173 .to_point(&multi_buffer_snapshot);
4174 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4175 multi_buffer_visible_start
4176 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4177 Bias::Left,
4178 );
4179 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4180 multi_buffer
4181 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4182 .into_iter()
4183 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4184 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4185 let buffer = buffer_handle.read(cx);
4186 let buffer_file = project::File::from_dyn(buffer.file())?;
4187 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4188 let worktree_entry = buffer_worktree
4189 .read(cx)
4190 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4191 if worktree_entry.is_ignored {
4192 return None;
4193 }
4194
4195 let language = buffer.language()?;
4196 if let Some(restrict_to_languages) = restrict_to_languages {
4197 if !restrict_to_languages.contains(language) {
4198 return None;
4199 }
4200 }
4201 Some((
4202 excerpt_id,
4203 (
4204 buffer_handle,
4205 buffer.version().clone(),
4206 excerpt_visible_range,
4207 ),
4208 ))
4209 })
4210 .collect()
4211 }
4212
4213 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4214 TextLayoutDetails {
4215 text_system: cx.text_system().clone(),
4216 editor_style: self.style.clone().unwrap(),
4217 rem_size: cx.rem_size(),
4218 scroll_anchor: self.scroll_manager.anchor(),
4219 visible_rows: self.visible_line_count(),
4220 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4221 }
4222 }
4223
4224 fn splice_inlays(
4225 &self,
4226 to_remove: Vec<InlayId>,
4227 to_insert: Vec<Inlay>,
4228 cx: &mut ViewContext<Self>,
4229 ) {
4230 self.display_map.update(cx, |display_map, cx| {
4231 display_map.splice_inlays(to_remove, to_insert, cx);
4232 });
4233 cx.notify();
4234 }
4235
4236 fn trigger_on_type_formatting(
4237 &self,
4238 input: String,
4239 cx: &mut ViewContext<Self>,
4240 ) -> Option<Task<Result<()>>> {
4241 if input.len() != 1 {
4242 return None;
4243 }
4244
4245 let project = self.project.as_ref()?;
4246 let position = self.selections.newest_anchor().head();
4247 let (buffer, buffer_position) = self
4248 .buffer
4249 .read(cx)
4250 .text_anchor_for_position(position, cx)?;
4251
4252 let settings = language_settings::language_settings(
4253 buffer.read(cx).language_at(buffer_position).as_ref(),
4254 buffer.read(cx).file(),
4255 cx,
4256 );
4257 if !settings.use_on_type_format {
4258 return None;
4259 }
4260
4261 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4262 // hence we do LSP request & edit on host side only — add formats to host's history.
4263 let push_to_lsp_host_history = true;
4264 // If this is not the host, append its history with new edits.
4265 let push_to_client_history = project.read(cx).is_via_collab();
4266
4267 let on_type_formatting = project.update(cx, |project, cx| {
4268 project.on_type_format(
4269 buffer.clone(),
4270 buffer_position,
4271 input,
4272 push_to_lsp_host_history,
4273 cx,
4274 )
4275 });
4276 Some(cx.spawn(|editor, mut cx| async move {
4277 if let Some(transaction) = on_type_formatting.await? {
4278 if push_to_client_history {
4279 buffer
4280 .update(&mut cx, |buffer, _| {
4281 buffer.push_transaction(transaction, Instant::now());
4282 })
4283 .ok();
4284 }
4285 editor.update(&mut cx, |editor, cx| {
4286 editor.refresh_document_highlights(cx);
4287 })?;
4288 }
4289 Ok(())
4290 }))
4291 }
4292
4293 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4294 if self.pending_rename.is_some() {
4295 return;
4296 }
4297
4298 let Some(provider) = self.completion_provider.as_ref() else {
4299 return;
4300 };
4301
4302 let position = self.selections.newest_anchor().head();
4303 let (buffer, buffer_position) =
4304 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4305 output
4306 } else {
4307 return;
4308 };
4309
4310 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4311 let is_followup_invoke = {
4312 let context_menu_state = self.context_menu.read();
4313 matches!(
4314 context_menu_state.deref(),
4315 Some(ContextMenu::Completions(_))
4316 )
4317 };
4318 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4319 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4320 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4321 CompletionTriggerKind::TRIGGER_CHARACTER
4322 }
4323
4324 _ => CompletionTriggerKind::INVOKED,
4325 };
4326 let completion_context = CompletionContext {
4327 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4328 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4329 Some(String::from(trigger))
4330 } else {
4331 None
4332 }
4333 }),
4334 trigger_kind,
4335 };
4336 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4337 let sort_completions = provider.sort_completions();
4338
4339 let id = post_inc(&mut self.next_completion_id);
4340 let task = cx.spawn(|this, mut cx| {
4341 async move {
4342 this.update(&mut cx, |this, _| {
4343 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4344 })?;
4345 let completions = completions.await.log_err();
4346 let menu = if let Some(completions) = completions {
4347 let mut menu = CompletionsMenu {
4348 id,
4349 sort_completions,
4350 initial_position: position,
4351 match_candidates: completions
4352 .iter()
4353 .enumerate()
4354 .map(|(id, completion)| {
4355 StringMatchCandidate::new(
4356 id,
4357 completion.label.text[completion.label.filter_range.clone()]
4358 .into(),
4359 )
4360 })
4361 .collect(),
4362 buffer: buffer.clone(),
4363 completions: Arc::new(RwLock::new(completions.into())),
4364 matches: Vec::new().into(),
4365 selected_item: 0,
4366 scroll_handle: UniformListScrollHandle::new(),
4367 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4368 DebouncedDelay::new(),
4369 )),
4370 };
4371 menu.filter(query.as_deref(), cx.background_executor().clone())
4372 .await;
4373
4374 if menu.matches.is_empty() {
4375 None
4376 } else {
4377 this.update(&mut cx, |editor, cx| {
4378 let completions = menu.completions.clone();
4379 let matches = menu.matches.clone();
4380
4381 let delay_ms = EditorSettings::get_global(cx)
4382 .completion_documentation_secondary_query_debounce;
4383 let delay = Duration::from_millis(delay_ms);
4384 editor
4385 .completion_documentation_pre_resolve_debounce
4386 .fire_new(delay, cx, |editor, cx| {
4387 CompletionsMenu::pre_resolve_completion_documentation(
4388 buffer,
4389 completions,
4390 matches,
4391 editor,
4392 cx,
4393 )
4394 });
4395 })
4396 .ok();
4397 Some(menu)
4398 }
4399 } else {
4400 None
4401 };
4402
4403 this.update(&mut cx, |this, cx| {
4404 let mut context_menu = this.context_menu.write();
4405 match context_menu.as_ref() {
4406 None => {}
4407
4408 Some(ContextMenu::Completions(prev_menu)) => {
4409 if prev_menu.id > id {
4410 return;
4411 }
4412 }
4413
4414 _ => return,
4415 }
4416
4417 if this.focus_handle.is_focused(cx) && menu.is_some() {
4418 let menu = menu.unwrap();
4419 *context_menu = Some(ContextMenu::Completions(menu));
4420 drop(context_menu);
4421 this.discard_inline_completion(false, cx);
4422 cx.notify();
4423 } else if this.completion_tasks.len() <= 1 {
4424 // If there are no more completion tasks and the last menu was
4425 // empty, we should hide it. If it was already hidden, we should
4426 // also show the copilot completion when available.
4427 drop(context_menu);
4428 if this.hide_context_menu(cx).is_none() {
4429 this.update_visible_inline_completion(cx);
4430 }
4431 }
4432 })?;
4433
4434 Ok::<_, anyhow::Error>(())
4435 }
4436 .log_err()
4437 });
4438
4439 self.completion_tasks.push((id, task));
4440 }
4441
4442 pub fn confirm_completion(
4443 &mut self,
4444 action: &ConfirmCompletion,
4445 cx: &mut ViewContext<Self>,
4446 ) -> Option<Task<Result<()>>> {
4447 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4448 }
4449
4450 pub fn compose_completion(
4451 &mut self,
4452 action: &ComposeCompletion,
4453 cx: &mut ViewContext<Self>,
4454 ) -> Option<Task<Result<()>>> {
4455 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4456 }
4457
4458 fn do_completion(
4459 &mut self,
4460 item_ix: Option<usize>,
4461 intent: CompletionIntent,
4462 cx: &mut ViewContext<Self>,
4463 ) -> Option<Task<anyhow::Result<()>>> {
4464 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4465 menu
4466 } else {
4467 return None;
4468 };
4469
4470 let mut resolve_task_store = completions_menu
4471 .selected_completion_documentation_resolve_debounce
4472 .lock();
4473 let selected_completion_resolve = resolve_task_store.start_now();
4474 let menu_pre_resolve = self
4475 .completion_documentation_pre_resolve_debounce
4476 .start_now();
4477 drop(resolve_task_store);
4478
4479 Some(cx.spawn(|editor, mut cx| async move {
4480 match (selected_completion_resolve, menu_pre_resolve) {
4481 (None, None) => {}
4482 (Some(resolve), None) | (None, Some(resolve)) => resolve.await,
4483 (Some(resolve_1), Some(resolve_2)) => {
4484 futures::join!(resolve_1, resolve_2);
4485 }
4486 }
4487 if let Some(apply_edits_task) = editor.update(&mut cx, |editor, cx| {
4488 editor.apply_resolved_completion(completions_menu, item_ix, intent, cx)
4489 })? {
4490 apply_edits_task.await?;
4491 }
4492 Ok(())
4493 }))
4494 }
4495
4496 fn apply_resolved_completion(
4497 &mut self,
4498 completions_menu: CompletionsMenu,
4499 item_ix: Option<usize>,
4500 intent: CompletionIntent,
4501 cx: &mut ViewContext<'_, Editor>,
4502 ) -> Option<Task<anyhow::Result<Option<language::Transaction>>>> {
4503 use language::ToOffset as _;
4504
4505 let mat = completions_menu
4506 .matches
4507 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4508 let buffer_handle = completions_menu.buffer;
4509 let completions = completions_menu.completions.read();
4510 let completion = completions.get(mat.candidate_id)?;
4511 cx.stop_propagation();
4512
4513 let snippet;
4514 let text;
4515
4516 if completion.is_snippet() {
4517 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4518 text = snippet.as_ref().unwrap().text.clone();
4519 } else {
4520 snippet = None;
4521 text = completion.new_text.clone();
4522 };
4523 let selections = self.selections.all::<usize>(cx);
4524 let buffer = buffer_handle.read(cx);
4525 let old_range = completion.old_range.to_offset(buffer);
4526 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4527
4528 let newest_selection = self.selections.newest_anchor();
4529 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4530 return None;
4531 }
4532
4533 let lookbehind = newest_selection
4534 .start
4535 .text_anchor
4536 .to_offset(buffer)
4537 .saturating_sub(old_range.start);
4538 let lookahead = old_range
4539 .end
4540 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4541 let mut common_prefix_len = old_text
4542 .bytes()
4543 .zip(text.bytes())
4544 .take_while(|(a, b)| a == b)
4545 .count();
4546
4547 let snapshot = self.buffer.read(cx).snapshot(cx);
4548 let mut range_to_replace: Option<Range<isize>> = None;
4549 let mut ranges = Vec::new();
4550 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4551 for selection in &selections {
4552 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4553 let start = selection.start.saturating_sub(lookbehind);
4554 let end = selection.end + lookahead;
4555 if selection.id == newest_selection.id {
4556 range_to_replace = Some(
4557 ((start + common_prefix_len) as isize - selection.start as isize)
4558 ..(end as isize - selection.start as isize),
4559 );
4560 }
4561 ranges.push(start + common_prefix_len..end);
4562 } else {
4563 common_prefix_len = 0;
4564 ranges.clear();
4565 ranges.extend(selections.iter().map(|s| {
4566 if s.id == newest_selection.id {
4567 range_to_replace = Some(
4568 old_range.start.to_offset_utf16(&snapshot).0 as isize
4569 - selection.start as isize
4570 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4571 - selection.start as isize,
4572 );
4573 old_range.clone()
4574 } else {
4575 s.start..s.end
4576 }
4577 }));
4578 break;
4579 }
4580 if !self.linked_edit_ranges.is_empty() {
4581 let start_anchor = snapshot.anchor_before(selection.head());
4582 let end_anchor = snapshot.anchor_after(selection.tail());
4583 if let Some(ranges) = self
4584 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4585 {
4586 for (buffer, edits) in ranges {
4587 linked_edits.entry(buffer.clone()).or_default().extend(
4588 edits
4589 .into_iter()
4590 .map(|range| (range, text[common_prefix_len..].to_owned())),
4591 );
4592 }
4593 }
4594 }
4595 }
4596 let text = &text[common_prefix_len..];
4597
4598 cx.emit(EditorEvent::InputHandled {
4599 utf16_range_to_replace: range_to_replace,
4600 text: text.into(),
4601 });
4602
4603 self.transact(cx, |this, cx| {
4604 if let Some(mut snippet) = snippet {
4605 snippet.text = text.to_string();
4606 for tabstop in snippet.tabstops.iter_mut().flatten() {
4607 tabstop.start -= common_prefix_len as isize;
4608 tabstop.end -= common_prefix_len as isize;
4609 }
4610
4611 this.insert_snippet(&ranges, snippet, cx).log_err();
4612 } else {
4613 this.buffer.update(cx, |buffer, cx| {
4614 buffer.edit(
4615 ranges.iter().map(|range| (range.clone(), text)),
4616 this.autoindent_mode.clone(),
4617 cx,
4618 );
4619 });
4620 }
4621 for (buffer, edits) in linked_edits {
4622 buffer.update(cx, |buffer, cx| {
4623 let snapshot = buffer.snapshot();
4624 let edits = edits
4625 .into_iter()
4626 .map(|(range, text)| {
4627 use text::ToPoint as TP;
4628 let end_point = TP::to_point(&range.end, &snapshot);
4629 let start_point = TP::to_point(&range.start, &snapshot);
4630 (start_point..end_point, text)
4631 })
4632 .sorted_by_key(|(range, _)| range.start)
4633 .collect::<Vec<_>>();
4634 buffer.edit(edits, None, cx);
4635 })
4636 }
4637
4638 this.refresh_inline_completion(true, false, cx);
4639 });
4640
4641 let show_new_completions_on_confirm = completion
4642 .confirm
4643 .as_ref()
4644 .map_or(false, |confirm| confirm(intent, cx));
4645 if show_new_completions_on_confirm {
4646 self.show_completions(&ShowCompletions { trigger: None }, cx);
4647 }
4648
4649 let provider = self.completion_provider.as_ref()?;
4650 let apply_edits = provider.apply_additional_edits_for_completion(
4651 buffer_handle,
4652 completion.clone(),
4653 true,
4654 cx,
4655 );
4656
4657 let editor_settings = EditorSettings::get_global(cx);
4658 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4659 // After the code completion is finished, users often want to know what signatures are needed.
4660 // so we should automatically call signature_help
4661 self.show_signature_help(&ShowSignatureHelp, cx);
4662 }
4663 Some(apply_edits)
4664 }
4665
4666 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4667 let mut context_menu = self.context_menu.write();
4668 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4669 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4670 // Toggle if we're selecting the same one
4671 *context_menu = None;
4672 cx.notify();
4673 return;
4674 } else {
4675 // Otherwise, clear it and start a new one
4676 *context_menu = None;
4677 cx.notify();
4678 }
4679 }
4680 drop(context_menu);
4681 let snapshot = self.snapshot(cx);
4682 let deployed_from_indicator = action.deployed_from_indicator;
4683 let mut task = self.code_actions_task.take();
4684 let action = action.clone();
4685 cx.spawn(|editor, mut cx| async move {
4686 while let Some(prev_task) = task {
4687 prev_task.await.log_err();
4688 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4689 }
4690
4691 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4692 if editor.focus_handle.is_focused(cx) {
4693 let multibuffer_point = action
4694 .deployed_from_indicator
4695 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4696 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4697 let (buffer, buffer_row) = snapshot
4698 .buffer_snapshot
4699 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4700 .and_then(|(buffer_snapshot, range)| {
4701 editor
4702 .buffer
4703 .read(cx)
4704 .buffer(buffer_snapshot.remote_id())
4705 .map(|buffer| (buffer, range.start.row))
4706 })?;
4707 let (_, code_actions) = editor
4708 .available_code_actions
4709 .clone()
4710 .and_then(|(location, code_actions)| {
4711 let snapshot = location.buffer.read(cx).snapshot();
4712 let point_range = location.range.to_point(&snapshot);
4713 let point_range = point_range.start.row..=point_range.end.row;
4714 if point_range.contains(&buffer_row) {
4715 Some((location, code_actions))
4716 } else {
4717 None
4718 }
4719 })
4720 .unzip();
4721 let buffer_id = buffer.read(cx).remote_id();
4722 let tasks = editor
4723 .tasks
4724 .get(&(buffer_id, buffer_row))
4725 .map(|t| Arc::new(t.to_owned()));
4726 if tasks.is_none() && code_actions.is_none() {
4727 return None;
4728 }
4729
4730 editor.completion_tasks.clear();
4731 editor.discard_inline_completion(false, cx);
4732 let task_context =
4733 tasks
4734 .as_ref()
4735 .zip(editor.project.clone())
4736 .map(|(tasks, project)| {
4737 let position = Point::new(buffer_row, tasks.column);
4738 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4739 let location = Location {
4740 buffer: buffer.clone(),
4741 range: range_start..range_start,
4742 };
4743 // Fill in the environmental variables from the tree-sitter captures
4744 let mut captured_task_variables = TaskVariables::default();
4745 for (capture_name, value) in tasks.extra_variables.clone() {
4746 captured_task_variables.insert(
4747 task::VariableName::Custom(capture_name.into()),
4748 value.clone(),
4749 );
4750 }
4751 project.update(cx, |project, cx| {
4752 project.task_store().update(cx, |task_store, cx| {
4753 task_store.task_context_for_location(
4754 captured_task_variables,
4755 location,
4756 cx,
4757 )
4758 })
4759 })
4760 });
4761
4762 Some(cx.spawn(|editor, mut cx| async move {
4763 let task_context = match task_context {
4764 Some(task_context) => task_context.await,
4765 None => None,
4766 };
4767 let resolved_tasks =
4768 tasks.zip(task_context).map(|(tasks, task_context)| {
4769 Arc::new(ResolvedTasks {
4770 templates: tasks
4771 .templates
4772 .iter()
4773 .filter_map(|(kind, template)| {
4774 template
4775 .resolve_task(&kind.to_id_base(), &task_context)
4776 .map(|task| (kind.clone(), task))
4777 })
4778 .collect(),
4779 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4780 multibuffer_point.row,
4781 tasks.column,
4782 )),
4783 })
4784 });
4785 let spawn_straight_away = resolved_tasks
4786 .as_ref()
4787 .map_or(false, |tasks| tasks.templates.len() == 1)
4788 && code_actions
4789 .as_ref()
4790 .map_or(true, |actions| actions.is_empty());
4791 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4792 *editor.context_menu.write() =
4793 Some(ContextMenu::CodeActions(CodeActionsMenu {
4794 buffer,
4795 actions: CodeActionContents {
4796 tasks: resolved_tasks,
4797 actions: code_actions,
4798 },
4799 selected_item: Default::default(),
4800 scroll_handle: UniformListScrollHandle::default(),
4801 deployed_from_indicator,
4802 }));
4803 if spawn_straight_away {
4804 if let Some(task) = editor.confirm_code_action(
4805 &ConfirmCodeAction { item_ix: Some(0) },
4806 cx,
4807 ) {
4808 cx.notify();
4809 return task;
4810 }
4811 }
4812 cx.notify();
4813 Task::ready(Ok(()))
4814 }) {
4815 task.await
4816 } else {
4817 Ok(())
4818 }
4819 }))
4820 } else {
4821 Some(Task::ready(Ok(())))
4822 }
4823 })?;
4824 if let Some(task) = spawned_test_task {
4825 task.await?;
4826 }
4827
4828 Ok::<_, anyhow::Error>(())
4829 })
4830 .detach_and_log_err(cx);
4831 }
4832
4833 pub fn confirm_code_action(
4834 &mut self,
4835 action: &ConfirmCodeAction,
4836 cx: &mut ViewContext<Self>,
4837 ) -> Option<Task<Result<()>>> {
4838 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4839 menu
4840 } else {
4841 return None;
4842 };
4843 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4844 let action = actions_menu.actions.get(action_ix)?;
4845 let title = action.label();
4846 let buffer = actions_menu.buffer;
4847 let workspace = self.workspace()?;
4848
4849 match action {
4850 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4851 workspace.update(cx, |workspace, cx| {
4852 workspace::tasks::schedule_resolved_task(
4853 workspace,
4854 task_source_kind,
4855 resolved_task,
4856 false,
4857 cx,
4858 );
4859
4860 Some(Task::ready(Ok(())))
4861 })
4862 }
4863 CodeActionsItem::CodeAction {
4864 excerpt_id,
4865 action,
4866 provider,
4867 } => {
4868 let apply_code_action =
4869 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4870 let workspace = workspace.downgrade();
4871 Some(cx.spawn(|editor, cx| async move {
4872 let project_transaction = apply_code_action.await?;
4873 Self::open_project_transaction(
4874 &editor,
4875 workspace,
4876 project_transaction,
4877 title,
4878 cx,
4879 )
4880 .await
4881 }))
4882 }
4883 }
4884 }
4885
4886 pub async fn open_project_transaction(
4887 this: &WeakView<Editor>,
4888 workspace: WeakView<Workspace>,
4889 transaction: ProjectTransaction,
4890 title: String,
4891 mut cx: AsyncWindowContext,
4892 ) -> Result<()> {
4893 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4894 cx.update(|cx| {
4895 entries.sort_unstable_by_key(|(buffer, _)| {
4896 buffer.read(cx).file().map(|f| f.path().clone())
4897 });
4898 })?;
4899
4900 // If the project transaction's edits are all contained within this editor, then
4901 // avoid opening a new editor to display them.
4902
4903 if let Some((buffer, transaction)) = entries.first() {
4904 if entries.len() == 1 {
4905 let excerpt = this.update(&mut cx, |editor, cx| {
4906 editor
4907 .buffer()
4908 .read(cx)
4909 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4910 })?;
4911 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4912 if excerpted_buffer == *buffer {
4913 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4914 let excerpt_range = excerpt_range.to_offset(buffer);
4915 buffer
4916 .edited_ranges_for_transaction::<usize>(transaction)
4917 .all(|range| {
4918 excerpt_range.start <= range.start
4919 && excerpt_range.end >= range.end
4920 })
4921 })?;
4922
4923 if all_edits_within_excerpt {
4924 return Ok(());
4925 }
4926 }
4927 }
4928 }
4929 } else {
4930 return Ok(());
4931 }
4932
4933 let mut ranges_to_highlight = Vec::new();
4934 let excerpt_buffer = cx.new_model(|cx| {
4935 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4936 for (buffer_handle, transaction) in &entries {
4937 let buffer = buffer_handle.read(cx);
4938 ranges_to_highlight.extend(
4939 multibuffer.push_excerpts_with_context_lines(
4940 buffer_handle.clone(),
4941 buffer
4942 .edited_ranges_for_transaction::<usize>(transaction)
4943 .collect(),
4944 DEFAULT_MULTIBUFFER_CONTEXT,
4945 cx,
4946 ),
4947 );
4948 }
4949 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4950 multibuffer
4951 })?;
4952
4953 workspace.update(&mut cx, |workspace, cx| {
4954 let project = workspace.project().clone();
4955 let editor =
4956 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4957 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4958 editor.update(cx, |editor, cx| {
4959 editor.highlight_background::<Self>(
4960 &ranges_to_highlight,
4961 |theme| theme.editor_highlighted_line_background,
4962 cx,
4963 );
4964 });
4965 })?;
4966
4967 Ok(())
4968 }
4969
4970 pub fn clear_code_action_providers(&mut self) {
4971 self.code_action_providers.clear();
4972 self.available_code_actions.take();
4973 }
4974
4975 pub fn push_code_action_provider(
4976 &mut self,
4977 provider: Arc<dyn CodeActionProvider>,
4978 cx: &mut ViewContext<Self>,
4979 ) {
4980 self.code_action_providers.push(provider);
4981 self.refresh_code_actions(cx);
4982 }
4983
4984 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4985 let buffer = self.buffer.read(cx);
4986 let newest_selection = self.selections.newest_anchor().clone();
4987 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4988 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4989 if start_buffer != end_buffer {
4990 return None;
4991 }
4992
4993 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4994 cx.background_executor()
4995 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4996 .await;
4997
4998 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4999 let providers = this.code_action_providers.clone();
5000 let tasks = this
5001 .code_action_providers
5002 .iter()
5003 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
5004 .collect::<Vec<_>>();
5005 (providers, tasks)
5006 })?;
5007
5008 let mut actions = Vec::new();
5009 for (provider, provider_actions) in
5010 providers.into_iter().zip(future::join_all(tasks).await)
5011 {
5012 if let Some(provider_actions) = provider_actions.log_err() {
5013 actions.extend(provider_actions.into_iter().map(|action| {
5014 AvailableCodeAction {
5015 excerpt_id: newest_selection.start.excerpt_id,
5016 action,
5017 provider: provider.clone(),
5018 }
5019 }));
5020 }
5021 }
5022
5023 this.update(&mut cx, |this, cx| {
5024 this.available_code_actions = if actions.is_empty() {
5025 None
5026 } else {
5027 Some((
5028 Location {
5029 buffer: start_buffer,
5030 range: start..end,
5031 },
5032 actions.into(),
5033 ))
5034 };
5035 cx.notify();
5036 })
5037 }));
5038 None
5039 }
5040
5041 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5042 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5043 self.show_git_blame_inline = false;
5044
5045 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5046 cx.background_executor().timer(delay).await;
5047
5048 this.update(&mut cx, |this, cx| {
5049 this.show_git_blame_inline = true;
5050 cx.notify();
5051 })
5052 .log_err();
5053 }));
5054 }
5055 }
5056
5057 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5058 if self.pending_rename.is_some() {
5059 return None;
5060 }
5061
5062 let provider = self.semantics_provider.clone()?;
5063 let buffer = self.buffer.read(cx);
5064 let newest_selection = self.selections.newest_anchor().clone();
5065 let cursor_position = newest_selection.head();
5066 let (cursor_buffer, cursor_buffer_position) =
5067 buffer.text_anchor_for_position(cursor_position, cx)?;
5068 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5069 if cursor_buffer != tail_buffer {
5070 return None;
5071 }
5072
5073 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5074 cx.background_executor()
5075 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5076 .await;
5077
5078 let highlights = if let Some(highlights) = cx
5079 .update(|cx| {
5080 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5081 })
5082 .ok()
5083 .flatten()
5084 {
5085 highlights.await.log_err()
5086 } else {
5087 None
5088 };
5089
5090 if let Some(highlights) = highlights {
5091 this.update(&mut cx, |this, cx| {
5092 if this.pending_rename.is_some() {
5093 return;
5094 }
5095
5096 let buffer_id = cursor_position.buffer_id;
5097 let buffer = this.buffer.read(cx);
5098 if !buffer
5099 .text_anchor_for_position(cursor_position, cx)
5100 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5101 {
5102 return;
5103 }
5104
5105 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5106 let mut write_ranges = Vec::new();
5107 let mut read_ranges = Vec::new();
5108 for highlight in highlights {
5109 for (excerpt_id, excerpt_range) in
5110 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5111 {
5112 let start = highlight
5113 .range
5114 .start
5115 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5116 let end = highlight
5117 .range
5118 .end
5119 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5120 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5121 continue;
5122 }
5123
5124 let range = Anchor {
5125 buffer_id,
5126 excerpt_id,
5127 text_anchor: start,
5128 }..Anchor {
5129 buffer_id,
5130 excerpt_id,
5131 text_anchor: end,
5132 };
5133 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5134 write_ranges.push(range);
5135 } else {
5136 read_ranges.push(range);
5137 }
5138 }
5139 }
5140
5141 this.highlight_background::<DocumentHighlightRead>(
5142 &read_ranges,
5143 |theme| theme.editor_document_highlight_read_background,
5144 cx,
5145 );
5146 this.highlight_background::<DocumentHighlightWrite>(
5147 &write_ranges,
5148 |theme| theme.editor_document_highlight_write_background,
5149 cx,
5150 );
5151 cx.notify();
5152 })
5153 .log_err();
5154 }
5155 }));
5156 None
5157 }
5158
5159 pub fn refresh_inline_completion(
5160 &mut self,
5161 debounce: bool,
5162 user_requested: bool,
5163 cx: &mut ViewContext<Self>,
5164 ) -> Option<()> {
5165 let provider = self.inline_completion_provider()?;
5166 let cursor = self.selections.newest_anchor().head();
5167 let (buffer, cursor_buffer_position) =
5168 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5169
5170 if !user_requested
5171 && (!self.enable_inline_completions
5172 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5173 {
5174 self.discard_inline_completion(false, cx);
5175 return None;
5176 }
5177
5178 self.update_visible_inline_completion(cx);
5179 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5180 Some(())
5181 }
5182
5183 fn cycle_inline_completion(
5184 &mut self,
5185 direction: Direction,
5186 cx: &mut ViewContext<Self>,
5187 ) -> Option<()> {
5188 let provider = self.inline_completion_provider()?;
5189 let cursor = self.selections.newest_anchor().head();
5190 let (buffer, cursor_buffer_position) =
5191 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5192 if !self.enable_inline_completions
5193 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5194 {
5195 return None;
5196 }
5197
5198 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5199 self.update_visible_inline_completion(cx);
5200
5201 Some(())
5202 }
5203
5204 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5205 if !self.has_active_inline_completion(cx) {
5206 self.refresh_inline_completion(false, true, cx);
5207 return;
5208 }
5209
5210 self.update_visible_inline_completion(cx);
5211 }
5212
5213 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5214 self.show_cursor_names(cx);
5215 }
5216
5217 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5218 self.show_cursor_names = true;
5219 cx.notify();
5220 cx.spawn(|this, mut cx| async move {
5221 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5222 this.update(&mut cx, |this, cx| {
5223 this.show_cursor_names = false;
5224 cx.notify()
5225 })
5226 .ok()
5227 })
5228 .detach();
5229 }
5230
5231 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5232 if self.has_active_inline_completion(cx) {
5233 self.cycle_inline_completion(Direction::Next, cx);
5234 } else {
5235 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5236 if is_copilot_disabled {
5237 cx.propagate();
5238 }
5239 }
5240 }
5241
5242 pub fn previous_inline_completion(
5243 &mut self,
5244 _: &PreviousInlineCompletion,
5245 cx: &mut ViewContext<Self>,
5246 ) {
5247 if self.has_active_inline_completion(cx) {
5248 self.cycle_inline_completion(Direction::Prev, cx);
5249 } else {
5250 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5251 if is_copilot_disabled {
5252 cx.propagate();
5253 }
5254 }
5255 }
5256
5257 pub fn accept_inline_completion(
5258 &mut self,
5259 _: &AcceptInlineCompletion,
5260 cx: &mut ViewContext<Self>,
5261 ) {
5262 let Some(completion) = self.take_active_inline_completion(cx) else {
5263 return;
5264 };
5265 if let Some(provider) = self.inline_completion_provider() {
5266 provider.accept(cx);
5267 }
5268
5269 cx.emit(EditorEvent::InputHandled {
5270 utf16_range_to_replace: None,
5271 text: completion.text.to_string().into(),
5272 });
5273
5274 if let Some(range) = completion.delete_range {
5275 self.change_selections(None, cx, |s| s.select_ranges([range]))
5276 }
5277 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5278 self.refresh_inline_completion(true, true, cx);
5279 cx.notify();
5280 }
5281
5282 pub fn accept_partial_inline_completion(
5283 &mut self,
5284 _: &AcceptPartialInlineCompletion,
5285 cx: &mut ViewContext<Self>,
5286 ) {
5287 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5288 if let Some(completion) = self.take_active_inline_completion(cx) {
5289 let mut partial_completion = completion
5290 .text
5291 .chars()
5292 .by_ref()
5293 .take_while(|c| c.is_alphabetic())
5294 .collect::<String>();
5295 if partial_completion.is_empty() {
5296 partial_completion = completion
5297 .text
5298 .chars()
5299 .by_ref()
5300 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5301 .collect::<String>();
5302 }
5303
5304 cx.emit(EditorEvent::InputHandled {
5305 utf16_range_to_replace: None,
5306 text: partial_completion.clone().into(),
5307 });
5308
5309 if let Some(range) = completion.delete_range {
5310 self.change_selections(None, cx, |s| s.select_ranges([range]))
5311 }
5312 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5313
5314 self.refresh_inline_completion(true, true, cx);
5315 cx.notify();
5316 }
5317 }
5318 }
5319
5320 fn discard_inline_completion(
5321 &mut self,
5322 should_report_inline_completion_event: bool,
5323 cx: &mut ViewContext<Self>,
5324 ) -> bool {
5325 if let Some(provider) = self.inline_completion_provider() {
5326 provider.discard(should_report_inline_completion_event, cx);
5327 }
5328
5329 self.take_active_inline_completion(cx).is_some()
5330 }
5331
5332 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5333 if let Some(completion) = self.active_inline_completion.as_ref() {
5334 let buffer = self.buffer.read(cx).read(cx);
5335 completion.position.is_valid(&buffer)
5336 } else {
5337 false
5338 }
5339 }
5340
5341 fn take_active_inline_completion(
5342 &mut self,
5343 cx: &mut ViewContext<Self>,
5344 ) -> Option<CompletionState> {
5345 let completion = self.active_inline_completion.take()?;
5346 let render_inlay_ids = completion.render_inlay_ids.clone();
5347 self.display_map.update(cx, |map, cx| {
5348 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5349 });
5350 let buffer = self.buffer.read(cx).read(cx);
5351
5352 if completion.position.is_valid(&buffer) {
5353 Some(completion)
5354 } else {
5355 None
5356 }
5357 }
5358
5359 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5360 let selection = self.selections.newest_anchor();
5361 let cursor = selection.head();
5362
5363 let excerpt_id = cursor.excerpt_id;
5364
5365 if self.context_menu.read().is_none()
5366 && self.completion_tasks.is_empty()
5367 && selection.start == selection.end
5368 {
5369 if let Some(provider) = self.inline_completion_provider() {
5370 if let Some((buffer, cursor_buffer_position)) =
5371 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5372 {
5373 if let Some(proposal) =
5374 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5375 {
5376 let mut to_remove = Vec::new();
5377 if let Some(completion) = self.active_inline_completion.take() {
5378 to_remove.extend(completion.render_inlay_ids.iter());
5379 }
5380
5381 let to_add = proposal
5382 .inlays
5383 .iter()
5384 .filter_map(|inlay| {
5385 let snapshot = self.buffer.read(cx).snapshot(cx);
5386 let id = post_inc(&mut self.next_inlay_id);
5387 match inlay {
5388 InlayProposal::Hint(position, hint) => {
5389 let position =
5390 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5391 Some(Inlay::hint(id, position, hint))
5392 }
5393 InlayProposal::Suggestion(position, text) => {
5394 let position =
5395 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5396 Some(Inlay::suggestion(id, position, text.clone()))
5397 }
5398 }
5399 })
5400 .collect_vec();
5401
5402 self.active_inline_completion = Some(CompletionState {
5403 position: cursor,
5404 text: proposal.text,
5405 delete_range: proposal.delete_range.and_then(|range| {
5406 let snapshot = self.buffer.read(cx).snapshot(cx);
5407 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5408 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5409 Some(start?..end?)
5410 }),
5411 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5412 });
5413
5414 self.display_map
5415 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5416
5417 cx.notify();
5418 return;
5419 }
5420 }
5421 }
5422 }
5423
5424 self.discard_inline_completion(false, cx);
5425 }
5426
5427 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5428 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5429 }
5430
5431 fn render_code_actions_indicator(
5432 &self,
5433 _style: &EditorStyle,
5434 row: DisplayRow,
5435 is_active: bool,
5436 cx: &mut ViewContext<Self>,
5437 ) -> Option<IconButton> {
5438 if self.available_code_actions.is_some() {
5439 Some(
5440 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5441 .shape(ui::IconButtonShape::Square)
5442 .icon_size(IconSize::XSmall)
5443 .icon_color(Color::Muted)
5444 .selected(is_active)
5445 .tooltip({
5446 let focus_handle = self.focus_handle.clone();
5447 move |cx| {
5448 Tooltip::for_action_in(
5449 "Toggle Code Actions",
5450 &ToggleCodeActions {
5451 deployed_from_indicator: None,
5452 },
5453 &focus_handle,
5454 cx,
5455 )
5456 }
5457 })
5458 .on_click(cx.listener(move |editor, _e, cx| {
5459 editor.focus(cx);
5460 editor.toggle_code_actions(
5461 &ToggleCodeActions {
5462 deployed_from_indicator: Some(row),
5463 },
5464 cx,
5465 );
5466 })),
5467 )
5468 } else {
5469 None
5470 }
5471 }
5472
5473 fn clear_tasks(&mut self) {
5474 self.tasks.clear()
5475 }
5476
5477 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5478 if self.tasks.insert(key, value).is_some() {
5479 // This case should hopefully be rare, but just in case...
5480 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5481 }
5482 }
5483
5484 fn render_run_indicator(
5485 &self,
5486 _style: &EditorStyle,
5487 is_active: bool,
5488 row: DisplayRow,
5489 cx: &mut ViewContext<Self>,
5490 ) -> IconButton {
5491 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5492 .shape(ui::IconButtonShape::Square)
5493 .icon_size(IconSize::XSmall)
5494 .icon_color(Color::Muted)
5495 .selected(is_active)
5496 .on_click(cx.listener(move |editor, _e, cx| {
5497 editor.focus(cx);
5498 editor.toggle_code_actions(
5499 &ToggleCodeActions {
5500 deployed_from_indicator: Some(row),
5501 },
5502 cx,
5503 );
5504 }))
5505 }
5506
5507 pub fn context_menu_visible(&self) -> bool {
5508 self.context_menu
5509 .read()
5510 .as_ref()
5511 .map_or(false, |menu| menu.visible())
5512 }
5513
5514 fn render_context_menu(
5515 &self,
5516 cursor_position: DisplayPoint,
5517 style: &EditorStyle,
5518 max_height: Pixels,
5519 cx: &mut ViewContext<Editor>,
5520 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5521 self.context_menu.read().as_ref().map(|menu| {
5522 menu.render(
5523 cursor_position,
5524 style,
5525 max_height,
5526 self.workspace.as_ref().map(|(w, _)| w.clone()),
5527 cx,
5528 )
5529 })
5530 }
5531
5532 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5533 cx.notify();
5534 self.completion_tasks.clear();
5535 let context_menu = self.context_menu.write().take();
5536 if context_menu.is_some() {
5537 self.update_visible_inline_completion(cx);
5538 }
5539 context_menu
5540 }
5541
5542 pub fn insert_snippet(
5543 &mut self,
5544 insertion_ranges: &[Range<usize>],
5545 snippet: Snippet,
5546 cx: &mut ViewContext<Self>,
5547 ) -> Result<()> {
5548 struct Tabstop<T> {
5549 is_end_tabstop: bool,
5550 ranges: Vec<Range<T>>,
5551 }
5552
5553 let tabstops = self.buffer.update(cx, |buffer, cx| {
5554 let snippet_text: Arc<str> = snippet.text.clone().into();
5555 buffer.edit(
5556 insertion_ranges
5557 .iter()
5558 .cloned()
5559 .map(|range| (range, snippet_text.clone())),
5560 Some(AutoindentMode::EachLine),
5561 cx,
5562 );
5563
5564 let snapshot = &*buffer.read(cx);
5565 let snippet = &snippet;
5566 snippet
5567 .tabstops
5568 .iter()
5569 .map(|tabstop| {
5570 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5571 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5572 });
5573 let mut tabstop_ranges = tabstop
5574 .iter()
5575 .flat_map(|tabstop_range| {
5576 let mut delta = 0_isize;
5577 insertion_ranges.iter().map(move |insertion_range| {
5578 let insertion_start = insertion_range.start as isize + delta;
5579 delta +=
5580 snippet.text.len() as isize - insertion_range.len() as isize;
5581
5582 let start = ((insertion_start + tabstop_range.start) as usize)
5583 .min(snapshot.len());
5584 let end = ((insertion_start + tabstop_range.end) as usize)
5585 .min(snapshot.len());
5586 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5587 })
5588 })
5589 .collect::<Vec<_>>();
5590 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5591
5592 Tabstop {
5593 is_end_tabstop,
5594 ranges: tabstop_ranges,
5595 }
5596 })
5597 .collect::<Vec<_>>()
5598 });
5599 if let Some(tabstop) = tabstops.first() {
5600 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5601 s.select_ranges(tabstop.ranges.iter().cloned());
5602 });
5603
5604 // If we're already at the last tabstop and it's at the end of the snippet,
5605 // we're done, we don't need to keep the state around.
5606 if !tabstop.is_end_tabstop {
5607 let ranges = tabstops
5608 .into_iter()
5609 .map(|tabstop| tabstop.ranges)
5610 .collect::<Vec<_>>();
5611 self.snippet_stack.push(SnippetState {
5612 active_index: 0,
5613 ranges,
5614 });
5615 }
5616
5617 // Check whether the just-entered snippet ends with an auto-closable bracket.
5618 if self.autoclose_regions.is_empty() {
5619 let snapshot = self.buffer.read(cx).snapshot(cx);
5620 for selection in &mut self.selections.all::<Point>(cx) {
5621 let selection_head = selection.head();
5622 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5623 continue;
5624 };
5625
5626 let mut bracket_pair = None;
5627 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5628 let prev_chars = snapshot
5629 .reversed_chars_at(selection_head)
5630 .collect::<String>();
5631 for (pair, enabled) in scope.brackets() {
5632 if enabled
5633 && pair.close
5634 && prev_chars.starts_with(pair.start.as_str())
5635 && next_chars.starts_with(pair.end.as_str())
5636 {
5637 bracket_pair = Some(pair.clone());
5638 break;
5639 }
5640 }
5641 if let Some(pair) = bracket_pair {
5642 let start = snapshot.anchor_after(selection_head);
5643 let end = snapshot.anchor_after(selection_head);
5644 self.autoclose_regions.push(AutocloseRegion {
5645 selection_id: selection.id,
5646 range: start..end,
5647 pair,
5648 });
5649 }
5650 }
5651 }
5652 }
5653 Ok(())
5654 }
5655
5656 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5657 self.move_to_snippet_tabstop(Bias::Right, cx)
5658 }
5659
5660 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5661 self.move_to_snippet_tabstop(Bias::Left, cx)
5662 }
5663
5664 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5665 if let Some(mut snippet) = self.snippet_stack.pop() {
5666 match bias {
5667 Bias::Left => {
5668 if snippet.active_index > 0 {
5669 snippet.active_index -= 1;
5670 } else {
5671 self.snippet_stack.push(snippet);
5672 return false;
5673 }
5674 }
5675 Bias::Right => {
5676 if snippet.active_index + 1 < snippet.ranges.len() {
5677 snippet.active_index += 1;
5678 } else {
5679 self.snippet_stack.push(snippet);
5680 return false;
5681 }
5682 }
5683 }
5684 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5685 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5686 s.select_anchor_ranges(current_ranges.iter().cloned())
5687 });
5688 // If snippet state is not at the last tabstop, push it back on the stack
5689 if snippet.active_index + 1 < snippet.ranges.len() {
5690 self.snippet_stack.push(snippet);
5691 }
5692 return true;
5693 }
5694 }
5695
5696 false
5697 }
5698
5699 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5700 self.transact(cx, |this, cx| {
5701 this.select_all(&SelectAll, cx);
5702 this.insert("", cx);
5703 });
5704 }
5705
5706 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5707 self.transact(cx, |this, cx| {
5708 this.select_autoclose_pair(cx);
5709 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5710 if !this.linked_edit_ranges.is_empty() {
5711 let selections = this.selections.all::<MultiBufferPoint>(cx);
5712 let snapshot = this.buffer.read(cx).snapshot(cx);
5713
5714 for selection in selections.iter() {
5715 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5716 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5717 if selection_start.buffer_id != selection_end.buffer_id {
5718 continue;
5719 }
5720 if let Some(ranges) =
5721 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5722 {
5723 for (buffer, entries) in ranges {
5724 linked_ranges.entry(buffer).or_default().extend(entries);
5725 }
5726 }
5727 }
5728 }
5729
5730 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5731 if !this.selections.line_mode {
5732 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5733 for selection in &mut selections {
5734 if selection.is_empty() {
5735 let old_head = selection.head();
5736 let mut new_head =
5737 movement::left(&display_map, old_head.to_display_point(&display_map))
5738 .to_point(&display_map);
5739 if let Some((buffer, line_buffer_range)) = display_map
5740 .buffer_snapshot
5741 .buffer_line_for_row(MultiBufferRow(old_head.row))
5742 {
5743 let indent_size =
5744 buffer.indent_size_for_line(line_buffer_range.start.row);
5745 let indent_len = match indent_size.kind {
5746 IndentKind::Space => {
5747 buffer.settings_at(line_buffer_range.start, cx).tab_size
5748 }
5749 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5750 };
5751 if old_head.column <= indent_size.len && old_head.column > 0 {
5752 let indent_len = indent_len.get();
5753 new_head = cmp::min(
5754 new_head,
5755 MultiBufferPoint::new(
5756 old_head.row,
5757 ((old_head.column - 1) / indent_len) * indent_len,
5758 ),
5759 );
5760 }
5761 }
5762
5763 selection.set_head(new_head, SelectionGoal::None);
5764 }
5765 }
5766 }
5767
5768 this.signature_help_state.set_backspace_pressed(true);
5769 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5770 this.insert("", cx);
5771 let empty_str: Arc<str> = Arc::from("");
5772 for (buffer, edits) in linked_ranges {
5773 let snapshot = buffer.read(cx).snapshot();
5774 use text::ToPoint as TP;
5775
5776 let edits = edits
5777 .into_iter()
5778 .map(|range| {
5779 let end_point = TP::to_point(&range.end, &snapshot);
5780 let mut start_point = TP::to_point(&range.start, &snapshot);
5781
5782 if end_point == start_point {
5783 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5784 .saturating_sub(1);
5785 start_point = TP::to_point(&offset, &snapshot);
5786 };
5787
5788 (start_point..end_point, empty_str.clone())
5789 })
5790 .sorted_by_key(|(range, _)| range.start)
5791 .collect::<Vec<_>>();
5792 buffer.update(cx, |this, cx| {
5793 this.edit(edits, None, cx);
5794 })
5795 }
5796 this.refresh_inline_completion(true, false, cx);
5797 linked_editing_ranges::refresh_linked_ranges(this, cx);
5798 });
5799 }
5800
5801 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5802 self.transact(cx, |this, cx| {
5803 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5804 let line_mode = s.line_mode;
5805 s.move_with(|map, selection| {
5806 if selection.is_empty() && !line_mode {
5807 let cursor = movement::right(map, selection.head());
5808 selection.end = cursor;
5809 selection.reversed = true;
5810 selection.goal = SelectionGoal::None;
5811 }
5812 })
5813 });
5814 this.insert("", cx);
5815 this.refresh_inline_completion(true, false, cx);
5816 });
5817 }
5818
5819 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5820 if self.move_to_prev_snippet_tabstop(cx) {
5821 return;
5822 }
5823
5824 self.outdent(&Outdent, cx);
5825 }
5826
5827 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5828 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5829 return;
5830 }
5831
5832 let mut selections = self.selections.all_adjusted(cx);
5833 let buffer = self.buffer.read(cx);
5834 let snapshot = buffer.snapshot(cx);
5835 let rows_iter = selections.iter().map(|s| s.head().row);
5836 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5837
5838 let mut edits = Vec::new();
5839 let mut prev_edited_row = 0;
5840 let mut row_delta = 0;
5841 for selection in &mut selections {
5842 if selection.start.row != prev_edited_row {
5843 row_delta = 0;
5844 }
5845 prev_edited_row = selection.end.row;
5846
5847 // If the selection is non-empty, then increase the indentation of the selected lines.
5848 if !selection.is_empty() {
5849 row_delta =
5850 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5851 continue;
5852 }
5853
5854 // If the selection is empty and the cursor is in the leading whitespace before the
5855 // suggested indentation, then auto-indent the line.
5856 let cursor = selection.head();
5857 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5858 if let Some(suggested_indent) =
5859 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5860 {
5861 if cursor.column < suggested_indent.len
5862 && cursor.column <= current_indent.len
5863 && current_indent.len <= suggested_indent.len
5864 {
5865 selection.start = Point::new(cursor.row, suggested_indent.len);
5866 selection.end = selection.start;
5867 if row_delta == 0 {
5868 edits.extend(Buffer::edit_for_indent_size_adjustment(
5869 cursor.row,
5870 current_indent,
5871 suggested_indent,
5872 ));
5873 row_delta = suggested_indent.len - current_indent.len;
5874 }
5875 continue;
5876 }
5877 }
5878
5879 // Otherwise, insert a hard or soft tab.
5880 let settings = buffer.settings_at(cursor, cx);
5881 let tab_size = if settings.hard_tabs {
5882 IndentSize::tab()
5883 } else {
5884 let tab_size = settings.tab_size.get();
5885 let char_column = snapshot
5886 .text_for_range(Point::new(cursor.row, 0)..cursor)
5887 .flat_map(str::chars)
5888 .count()
5889 + row_delta as usize;
5890 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5891 IndentSize::spaces(chars_to_next_tab_stop)
5892 };
5893 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5894 selection.end = selection.start;
5895 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5896 row_delta += tab_size.len;
5897 }
5898
5899 self.transact(cx, |this, cx| {
5900 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5901 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5902 this.refresh_inline_completion(true, false, cx);
5903 });
5904 }
5905
5906 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5907 if self.read_only(cx) {
5908 return;
5909 }
5910 let mut selections = self.selections.all::<Point>(cx);
5911 let mut prev_edited_row = 0;
5912 let mut row_delta = 0;
5913 let mut edits = Vec::new();
5914 let buffer = self.buffer.read(cx);
5915 let snapshot = buffer.snapshot(cx);
5916 for selection in &mut selections {
5917 if selection.start.row != prev_edited_row {
5918 row_delta = 0;
5919 }
5920 prev_edited_row = selection.end.row;
5921
5922 row_delta =
5923 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5924 }
5925
5926 self.transact(cx, |this, cx| {
5927 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5928 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5929 });
5930 }
5931
5932 fn indent_selection(
5933 buffer: &MultiBuffer,
5934 snapshot: &MultiBufferSnapshot,
5935 selection: &mut Selection<Point>,
5936 edits: &mut Vec<(Range<Point>, String)>,
5937 delta_for_start_row: u32,
5938 cx: &AppContext,
5939 ) -> u32 {
5940 let settings = buffer.settings_at(selection.start, cx);
5941 let tab_size = settings.tab_size.get();
5942 let indent_kind = if settings.hard_tabs {
5943 IndentKind::Tab
5944 } else {
5945 IndentKind::Space
5946 };
5947 let mut start_row = selection.start.row;
5948 let mut end_row = selection.end.row + 1;
5949
5950 // If a selection ends at the beginning of a line, don't indent
5951 // that last line.
5952 if selection.end.column == 0 && selection.end.row > selection.start.row {
5953 end_row -= 1;
5954 }
5955
5956 // Avoid re-indenting a row that has already been indented by a
5957 // previous selection, but still update this selection's column
5958 // to reflect that indentation.
5959 if delta_for_start_row > 0 {
5960 start_row += 1;
5961 selection.start.column += delta_for_start_row;
5962 if selection.end.row == selection.start.row {
5963 selection.end.column += delta_for_start_row;
5964 }
5965 }
5966
5967 let mut delta_for_end_row = 0;
5968 let has_multiple_rows = start_row + 1 != end_row;
5969 for row in start_row..end_row {
5970 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5971 let indent_delta = match (current_indent.kind, indent_kind) {
5972 (IndentKind::Space, IndentKind::Space) => {
5973 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5974 IndentSize::spaces(columns_to_next_tab_stop)
5975 }
5976 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5977 (_, IndentKind::Tab) => IndentSize::tab(),
5978 };
5979
5980 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5981 0
5982 } else {
5983 selection.start.column
5984 };
5985 let row_start = Point::new(row, start);
5986 edits.push((
5987 row_start..row_start,
5988 indent_delta.chars().collect::<String>(),
5989 ));
5990
5991 // Update this selection's endpoints to reflect the indentation.
5992 if row == selection.start.row {
5993 selection.start.column += indent_delta.len;
5994 }
5995 if row == selection.end.row {
5996 selection.end.column += indent_delta.len;
5997 delta_for_end_row = indent_delta.len;
5998 }
5999 }
6000
6001 if selection.start.row == selection.end.row {
6002 delta_for_start_row + delta_for_end_row
6003 } else {
6004 delta_for_end_row
6005 }
6006 }
6007
6008 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6009 if self.read_only(cx) {
6010 return;
6011 }
6012 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6013 let selections = self.selections.all::<Point>(cx);
6014 let mut deletion_ranges = Vec::new();
6015 let mut last_outdent = None;
6016 {
6017 let buffer = self.buffer.read(cx);
6018 let snapshot = buffer.snapshot(cx);
6019 for selection in &selections {
6020 let settings = buffer.settings_at(selection.start, cx);
6021 let tab_size = settings.tab_size.get();
6022 let mut rows = selection.spanned_rows(false, &display_map);
6023
6024 // Avoid re-outdenting a row that has already been outdented by a
6025 // previous selection.
6026 if let Some(last_row) = last_outdent {
6027 if last_row == rows.start {
6028 rows.start = rows.start.next_row();
6029 }
6030 }
6031 let has_multiple_rows = rows.len() > 1;
6032 for row in rows.iter_rows() {
6033 let indent_size = snapshot.indent_size_for_line(row);
6034 if indent_size.len > 0 {
6035 let deletion_len = match indent_size.kind {
6036 IndentKind::Space => {
6037 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6038 if columns_to_prev_tab_stop == 0 {
6039 tab_size
6040 } else {
6041 columns_to_prev_tab_stop
6042 }
6043 }
6044 IndentKind::Tab => 1,
6045 };
6046 let start = if has_multiple_rows
6047 || deletion_len > selection.start.column
6048 || indent_size.len < selection.start.column
6049 {
6050 0
6051 } else {
6052 selection.start.column - deletion_len
6053 };
6054 deletion_ranges.push(
6055 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6056 );
6057 last_outdent = Some(row);
6058 }
6059 }
6060 }
6061 }
6062
6063 self.transact(cx, |this, cx| {
6064 this.buffer.update(cx, |buffer, cx| {
6065 let empty_str: Arc<str> = Arc::default();
6066 buffer.edit(
6067 deletion_ranges
6068 .into_iter()
6069 .map(|range| (range, empty_str.clone())),
6070 None,
6071 cx,
6072 );
6073 });
6074 let selections = this.selections.all::<usize>(cx);
6075 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6076 });
6077 }
6078
6079 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6080 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6081 let selections = self.selections.all::<Point>(cx);
6082
6083 let mut new_cursors = Vec::new();
6084 let mut edit_ranges = Vec::new();
6085 let mut selections = selections.iter().peekable();
6086 while let Some(selection) = selections.next() {
6087 let mut rows = selection.spanned_rows(false, &display_map);
6088 let goal_display_column = selection.head().to_display_point(&display_map).column();
6089
6090 // Accumulate contiguous regions of rows that we want to delete.
6091 while let Some(next_selection) = selections.peek() {
6092 let next_rows = next_selection.spanned_rows(false, &display_map);
6093 if next_rows.start <= rows.end {
6094 rows.end = next_rows.end;
6095 selections.next().unwrap();
6096 } else {
6097 break;
6098 }
6099 }
6100
6101 let buffer = &display_map.buffer_snapshot;
6102 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6103 let edit_end;
6104 let cursor_buffer_row;
6105 if buffer.max_point().row >= rows.end.0 {
6106 // If there's a line after the range, delete the \n from the end of the row range
6107 // and position the cursor on the next line.
6108 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6109 cursor_buffer_row = rows.end;
6110 } else {
6111 // If there isn't a line after the range, delete the \n from the line before the
6112 // start of the row range and position the cursor there.
6113 edit_start = edit_start.saturating_sub(1);
6114 edit_end = buffer.len();
6115 cursor_buffer_row = rows.start.previous_row();
6116 }
6117
6118 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6119 *cursor.column_mut() =
6120 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6121
6122 new_cursors.push((
6123 selection.id,
6124 buffer.anchor_after(cursor.to_point(&display_map)),
6125 ));
6126 edit_ranges.push(edit_start..edit_end);
6127 }
6128
6129 self.transact(cx, |this, cx| {
6130 let buffer = this.buffer.update(cx, |buffer, cx| {
6131 let empty_str: Arc<str> = Arc::default();
6132 buffer.edit(
6133 edit_ranges
6134 .into_iter()
6135 .map(|range| (range, empty_str.clone())),
6136 None,
6137 cx,
6138 );
6139 buffer.snapshot(cx)
6140 });
6141 let new_selections = new_cursors
6142 .into_iter()
6143 .map(|(id, cursor)| {
6144 let cursor = cursor.to_point(&buffer);
6145 Selection {
6146 id,
6147 start: cursor,
6148 end: cursor,
6149 reversed: false,
6150 goal: SelectionGoal::None,
6151 }
6152 })
6153 .collect();
6154
6155 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6156 s.select(new_selections);
6157 });
6158 });
6159 }
6160
6161 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6162 if self.read_only(cx) {
6163 return;
6164 }
6165 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6166 for selection in self.selections.all::<Point>(cx) {
6167 let start = MultiBufferRow(selection.start.row);
6168 let end = if selection.start.row == selection.end.row {
6169 MultiBufferRow(selection.start.row + 1)
6170 } else {
6171 MultiBufferRow(selection.end.row)
6172 };
6173
6174 if let Some(last_row_range) = row_ranges.last_mut() {
6175 if start <= last_row_range.end {
6176 last_row_range.end = end;
6177 continue;
6178 }
6179 }
6180 row_ranges.push(start..end);
6181 }
6182
6183 let snapshot = self.buffer.read(cx).snapshot(cx);
6184 let mut cursor_positions = Vec::new();
6185 for row_range in &row_ranges {
6186 let anchor = snapshot.anchor_before(Point::new(
6187 row_range.end.previous_row().0,
6188 snapshot.line_len(row_range.end.previous_row()),
6189 ));
6190 cursor_positions.push(anchor..anchor);
6191 }
6192
6193 self.transact(cx, |this, cx| {
6194 for row_range in row_ranges.into_iter().rev() {
6195 for row in row_range.iter_rows().rev() {
6196 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6197 let next_line_row = row.next_row();
6198 let indent = snapshot.indent_size_for_line(next_line_row);
6199 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6200
6201 let replace = if snapshot.line_len(next_line_row) > indent.len {
6202 " "
6203 } else {
6204 ""
6205 };
6206
6207 this.buffer.update(cx, |buffer, cx| {
6208 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6209 });
6210 }
6211 }
6212
6213 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6214 s.select_anchor_ranges(cursor_positions)
6215 });
6216 });
6217 }
6218
6219 pub fn sort_lines_case_sensitive(
6220 &mut self,
6221 _: &SortLinesCaseSensitive,
6222 cx: &mut ViewContext<Self>,
6223 ) {
6224 self.manipulate_lines(cx, |lines| lines.sort())
6225 }
6226
6227 pub fn sort_lines_case_insensitive(
6228 &mut self,
6229 _: &SortLinesCaseInsensitive,
6230 cx: &mut ViewContext<Self>,
6231 ) {
6232 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6233 }
6234
6235 pub fn unique_lines_case_insensitive(
6236 &mut self,
6237 _: &UniqueLinesCaseInsensitive,
6238 cx: &mut ViewContext<Self>,
6239 ) {
6240 self.manipulate_lines(cx, |lines| {
6241 let mut seen = HashSet::default();
6242 lines.retain(|line| seen.insert(line.to_lowercase()));
6243 })
6244 }
6245
6246 pub fn unique_lines_case_sensitive(
6247 &mut self,
6248 _: &UniqueLinesCaseSensitive,
6249 cx: &mut ViewContext<Self>,
6250 ) {
6251 self.manipulate_lines(cx, |lines| {
6252 let mut seen = HashSet::default();
6253 lines.retain(|line| seen.insert(*line));
6254 })
6255 }
6256
6257 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6258 let mut revert_changes = HashMap::default();
6259 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6260 for hunk in hunks_for_rows(
6261 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6262 &multi_buffer_snapshot,
6263 ) {
6264 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6265 }
6266 if !revert_changes.is_empty() {
6267 self.transact(cx, |editor, cx| {
6268 editor.revert(revert_changes, cx);
6269 });
6270 }
6271 }
6272
6273 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6274 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6275 if !revert_changes.is_empty() {
6276 self.transact(cx, |editor, cx| {
6277 editor.revert(revert_changes, cx);
6278 });
6279 }
6280 }
6281
6282 fn apply_selected_diff_hunks(&mut self, _: &ApplyDiffHunk, cx: &mut ViewContext<Self>) {
6283 let snapshot = self.buffer.read(cx).snapshot(cx);
6284 let hunks = hunks_for_selections(&snapshot, &self.selections.disjoint_anchors());
6285 let mut ranges_by_buffer = HashMap::default();
6286 self.transact(cx, |editor, cx| {
6287 for hunk in hunks {
6288 if let Some(buffer) = editor.buffer.read(cx).buffer(hunk.buffer_id) {
6289 ranges_by_buffer
6290 .entry(buffer.clone())
6291 .or_insert_with(Vec::new)
6292 .push(hunk.buffer_range.to_offset(buffer.read(cx)));
6293 }
6294 }
6295
6296 for (buffer, ranges) in ranges_by_buffer {
6297 buffer.update(cx, |buffer, cx| {
6298 buffer.merge_into_base(ranges, cx);
6299 });
6300 }
6301 });
6302 }
6303
6304 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6305 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6306 let project_path = buffer.read(cx).project_path(cx)?;
6307 let project = self.project.as_ref()?.read(cx);
6308 let entry = project.entry_for_path(&project_path, cx)?;
6309 let abs_path = project.absolute_path(&project_path, cx)?;
6310 let parent = if entry.is_symlink {
6311 abs_path.canonicalize().ok()?
6312 } else {
6313 abs_path
6314 }
6315 .parent()?
6316 .to_path_buf();
6317 Some(parent)
6318 }) {
6319 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6320 }
6321 }
6322
6323 fn gather_revert_changes(
6324 &mut self,
6325 selections: &[Selection<Anchor>],
6326 cx: &mut ViewContext<'_, Editor>,
6327 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6328 let mut revert_changes = HashMap::default();
6329 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6330 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6331 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6332 }
6333 revert_changes
6334 }
6335
6336 pub fn prepare_revert_change(
6337 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6338 multi_buffer: &Model<MultiBuffer>,
6339 hunk: &MultiBufferDiffHunk,
6340 cx: &AppContext,
6341 ) -> Option<()> {
6342 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6343 let buffer = buffer.read(cx);
6344 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6345 let buffer_snapshot = buffer.snapshot();
6346 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6347 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6348 probe
6349 .0
6350 .start
6351 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6352 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6353 }) {
6354 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6355 Some(())
6356 } else {
6357 None
6358 }
6359 }
6360
6361 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6362 self.manipulate_lines(cx, |lines| lines.reverse())
6363 }
6364
6365 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6366 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6367 }
6368
6369 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6370 where
6371 Fn: FnMut(&mut Vec<&str>),
6372 {
6373 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6374 let buffer = self.buffer.read(cx).snapshot(cx);
6375
6376 let mut edits = Vec::new();
6377
6378 let selections = self.selections.all::<Point>(cx);
6379 let mut selections = selections.iter().peekable();
6380 let mut contiguous_row_selections = Vec::new();
6381 let mut new_selections = Vec::new();
6382 let mut added_lines = 0;
6383 let mut removed_lines = 0;
6384
6385 while let Some(selection) = selections.next() {
6386 let (start_row, end_row) = consume_contiguous_rows(
6387 &mut contiguous_row_selections,
6388 selection,
6389 &display_map,
6390 &mut selections,
6391 );
6392
6393 let start_point = Point::new(start_row.0, 0);
6394 let end_point = Point::new(
6395 end_row.previous_row().0,
6396 buffer.line_len(end_row.previous_row()),
6397 );
6398 let text = buffer
6399 .text_for_range(start_point..end_point)
6400 .collect::<String>();
6401
6402 let mut lines = text.split('\n').collect_vec();
6403
6404 let lines_before = lines.len();
6405 callback(&mut lines);
6406 let lines_after = lines.len();
6407
6408 edits.push((start_point..end_point, lines.join("\n")));
6409
6410 // Selections must change based on added and removed line count
6411 let start_row =
6412 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6413 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6414 new_selections.push(Selection {
6415 id: selection.id,
6416 start: start_row,
6417 end: end_row,
6418 goal: SelectionGoal::None,
6419 reversed: selection.reversed,
6420 });
6421
6422 if lines_after > lines_before {
6423 added_lines += lines_after - lines_before;
6424 } else if lines_before > lines_after {
6425 removed_lines += lines_before - lines_after;
6426 }
6427 }
6428
6429 self.transact(cx, |this, cx| {
6430 let buffer = this.buffer.update(cx, |buffer, cx| {
6431 buffer.edit(edits, None, cx);
6432 buffer.snapshot(cx)
6433 });
6434
6435 // Recalculate offsets on newly edited buffer
6436 let new_selections = new_selections
6437 .iter()
6438 .map(|s| {
6439 let start_point = Point::new(s.start.0, 0);
6440 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6441 Selection {
6442 id: s.id,
6443 start: buffer.point_to_offset(start_point),
6444 end: buffer.point_to_offset(end_point),
6445 goal: s.goal,
6446 reversed: s.reversed,
6447 }
6448 })
6449 .collect();
6450
6451 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6452 s.select(new_selections);
6453 });
6454
6455 this.request_autoscroll(Autoscroll::fit(), cx);
6456 });
6457 }
6458
6459 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6460 self.manipulate_text(cx, |text| text.to_uppercase())
6461 }
6462
6463 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6464 self.manipulate_text(cx, |text| text.to_lowercase())
6465 }
6466
6467 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6468 self.manipulate_text(cx, |text| {
6469 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6470 // https://github.com/rutrum/convert-case/issues/16
6471 text.split('\n')
6472 .map(|line| line.to_case(Case::Title))
6473 .join("\n")
6474 })
6475 }
6476
6477 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6478 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6479 }
6480
6481 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6482 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6483 }
6484
6485 pub fn convert_to_upper_camel_case(
6486 &mut self,
6487 _: &ConvertToUpperCamelCase,
6488 cx: &mut ViewContext<Self>,
6489 ) {
6490 self.manipulate_text(cx, |text| {
6491 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6492 // https://github.com/rutrum/convert-case/issues/16
6493 text.split('\n')
6494 .map(|line| line.to_case(Case::UpperCamel))
6495 .join("\n")
6496 })
6497 }
6498
6499 pub fn convert_to_lower_camel_case(
6500 &mut self,
6501 _: &ConvertToLowerCamelCase,
6502 cx: &mut ViewContext<Self>,
6503 ) {
6504 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6505 }
6506
6507 pub fn convert_to_opposite_case(
6508 &mut self,
6509 _: &ConvertToOppositeCase,
6510 cx: &mut ViewContext<Self>,
6511 ) {
6512 self.manipulate_text(cx, |text| {
6513 text.chars()
6514 .fold(String::with_capacity(text.len()), |mut t, c| {
6515 if c.is_uppercase() {
6516 t.extend(c.to_lowercase());
6517 } else {
6518 t.extend(c.to_uppercase());
6519 }
6520 t
6521 })
6522 })
6523 }
6524
6525 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6526 where
6527 Fn: FnMut(&str) -> String,
6528 {
6529 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6530 let buffer = self.buffer.read(cx).snapshot(cx);
6531
6532 let mut new_selections = Vec::new();
6533 let mut edits = Vec::new();
6534 let mut selection_adjustment = 0i32;
6535
6536 for selection in self.selections.all::<usize>(cx) {
6537 let selection_is_empty = selection.is_empty();
6538
6539 let (start, end) = if selection_is_empty {
6540 let word_range = movement::surrounding_word(
6541 &display_map,
6542 selection.start.to_display_point(&display_map),
6543 );
6544 let start = word_range.start.to_offset(&display_map, Bias::Left);
6545 let end = word_range.end.to_offset(&display_map, Bias::Left);
6546 (start, end)
6547 } else {
6548 (selection.start, selection.end)
6549 };
6550
6551 let text = buffer.text_for_range(start..end).collect::<String>();
6552 let old_length = text.len() as i32;
6553 let text = callback(&text);
6554
6555 new_selections.push(Selection {
6556 start: (start as i32 - selection_adjustment) as usize,
6557 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6558 goal: SelectionGoal::None,
6559 ..selection
6560 });
6561
6562 selection_adjustment += old_length - text.len() as i32;
6563
6564 edits.push((start..end, text));
6565 }
6566
6567 self.transact(cx, |this, cx| {
6568 this.buffer.update(cx, |buffer, cx| {
6569 buffer.edit(edits, None, cx);
6570 });
6571
6572 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6573 s.select(new_selections);
6574 });
6575
6576 this.request_autoscroll(Autoscroll::fit(), cx);
6577 });
6578 }
6579
6580 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6581 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6582 let buffer = &display_map.buffer_snapshot;
6583 let selections = self.selections.all::<Point>(cx);
6584
6585 let mut edits = Vec::new();
6586 let mut selections_iter = selections.iter().peekable();
6587 while let Some(selection) = selections_iter.next() {
6588 // Avoid duplicating the same lines twice.
6589 let mut rows = selection.spanned_rows(false, &display_map);
6590
6591 while let Some(next_selection) = selections_iter.peek() {
6592 let next_rows = next_selection.spanned_rows(false, &display_map);
6593 if next_rows.start < rows.end {
6594 rows.end = next_rows.end;
6595 selections_iter.next().unwrap();
6596 } else {
6597 break;
6598 }
6599 }
6600
6601 // Copy the text from the selected row region and splice it either at the start
6602 // or end of the region.
6603 let start = Point::new(rows.start.0, 0);
6604 let end = Point::new(
6605 rows.end.previous_row().0,
6606 buffer.line_len(rows.end.previous_row()),
6607 );
6608 let text = buffer
6609 .text_for_range(start..end)
6610 .chain(Some("\n"))
6611 .collect::<String>();
6612 let insert_location = if upwards {
6613 Point::new(rows.end.0, 0)
6614 } else {
6615 start
6616 };
6617 edits.push((insert_location..insert_location, text));
6618 }
6619
6620 self.transact(cx, |this, cx| {
6621 this.buffer.update(cx, |buffer, cx| {
6622 buffer.edit(edits, None, cx);
6623 });
6624
6625 this.request_autoscroll(Autoscroll::fit(), cx);
6626 });
6627 }
6628
6629 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6630 self.duplicate_line(true, cx);
6631 }
6632
6633 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6634 self.duplicate_line(false, cx);
6635 }
6636
6637 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6638 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6639 let buffer = self.buffer.read(cx).snapshot(cx);
6640
6641 let mut edits = Vec::new();
6642 let mut unfold_ranges = Vec::new();
6643 let mut refold_ranges = Vec::new();
6644
6645 let selections = self.selections.all::<Point>(cx);
6646 let mut selections = selections.iter().peekable();
6647 let mut contiguous_row_selections = Vec::new();
6648 let mut new_selections = Vec::new();
6649
6650 while let Some(selection) = selections.next() {
6651 // Find all the selections that span a contiguous row range
6652 let (start_row, end_row) = consume_contiguous_rows(
6653 &mut contiguous_row_selections,
6654 selection,
6655 &display_map,
6656 &mut selections,
6657 );
6658
6659 // Move the text spanned by the row range to be before the line preceding the row range
6660 if start_row.0 > 0 {
6661 let range_to_move = Point::new(
6662 start_row.previous_row().0,
6663 buffer.line_len(start_row.previous_row()),
6664 )
6665 ..Point::new(
6666 end_row.previous_row().0,
6667 buffer.line_len(end_row.previous_row()),
6668 );
6669 let insertion_point = display_map
6670 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6671 .0;
6672
6673 // Don't move lines across excerpts
6674 if buffer
6675 .excerpt_boundaries_in_range((
6676 Bound::Excluded(insertion_point),
6677 Bound::Included(range_to_move.end),
6678 ))
6679 .next()
6680 .is_none()
6681 {
6682 let text = buffer
6683 .text_for_range(range_to_move.clone())
6684 .flat_map(|s| s.chars())
6685 .skip(1)
6686 .chain(['\n'])
6687 .collect::<String>();
6688
6689 edits.push((
6690 buffer.anchor_after(range_to_move.start)
6691 ..buffer.anchor_before(range_to_move.end),
6692 String::new(),
6693 ));
6694 let insertion_anchor = buffer.anchor_after(insertion_point);
6695 edits.push((insertion_anchor..insertion_anchor, text));
6696
6697 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6698
6699 // Move selections up
6700 new_selections.extend(contiguous_row_selections.drain(..).map(
6701 |mut selection| {
6702 selection.start.row -= row_delta;
6703 selection.end.row -= row_delta;
6704 selection
6705 },
6706 ));
6707
6708 // Move folds up
6709 unfold_ranges.push(range_to_move.clone());
6710 for fold in display_map.folds_in_range(
6711 buffer.anchor_before(range_to_move.start)
6712 ..buffer.anchor_after(range_to_move.end),
6713 ) {
6714 let mut start = fold.range.start.to_point(&buffer);
6715 let mut end = fold.range.end.to_point(&buffer);
6716 start.row -= row_delta;
6717 end.row -= row_delta;
6718 refold_ranges.push((start..end, fold.placeholder.clone()));
6719 }
6720 }
6721 }
6722
6723 // If we didn't move line(s), preserve the existing selections
6724 new_selections.append(&mut contiguous_row_selections);
6725 }
6726
6727 self.transact(cx, |this, cx| {
6728 this.unfold_ranges(unfold_ranges, true, true, cx);
6729 this.buffer.update(cx, |buffer, cx| {
6730 for (range, text) in edits {
6731 buffer.edit([(range, text)], None, cx);
6732 }
6733 });
6734 this.fold_ranges(refold_ranges, true, cx);
6735 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6736 s.select(new_selections);
6737 })
6738 });
6739 }
6740
6741 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6742 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6743 let buffer = self.buffer.read(cx).snapshot(cx);
6744
6745 let mut edits = Vec::new();
6746 let mut unfold_ranges = Vec::new();
6747 let mut refold_ranges = Vec::new();
6748
6749 let selections = self.selections.all::<Point>(cx);
6750 let mut selections = selections.iter().peekable();
6751 let mut contiguous_row_selections = Vec::new();
6752 let mut new_selections = Vec::new();
6753
6754 while let Some(selection) = selections.next() {
6755 // Find all the selections that span a contiguous row range
6756 let (start_row, end_row) = consume_contiguous_rows(
6757 &mut contiguous_row_selections,
6758 selection,
6759 &display_map,
6760 &mut selections,
6761 );
6762
6763 // Move the text spanned by the row range to be after the last line of the row range
6764 if end_row.0 <= buffer.max_point().row {
6765 let range_to_move =
6766 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6767 let insertion_point = display_map
6768 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6769 .0;
6770
6771 // Don't move lines across excerpt boundaries
6772 if buffer
6773 .excerpt_boundaries_in_range((
6774 Bound::Excluded(range_to_move.start),
6775 Bound::Included(insertion_point),
6776 ))
6777 .next()
6778 .is_none()
6779 {
6780 let mut text = String::from("\n");
6781 text.extend(buffer.text_for_range(range_to_move.clone()));
6782 text.pop(); // Drop trailing newline
6783 edits.push((
6784 buffer.anchor_after(range_to_move.start)
6785 ..buffer.anchor_before(range_to_move.end),
6786 String::new(),
6787 ));
6788 let insertion_anchor = buffer.anchor_after(insertion_point);
6789 edits.push((insertion_anchor..insertion_anchor, text));
6790
6791 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6792
6793 // Move selections down
6794 new_selections.extend(contiguous_row_selections.drain(..).map(
6795 |mut selection| {
6796 selection.start.row += row_delta;
6797 selection.end.row += row_delta;
6798 selection
6799 },
6800 ));
6801
6802 // Move folds down
6803 unfold_ranges.push(range_to_move.clone());
6804 for fold in display_map.folds_in_range(
6805 buffer.anchor_before(range_to_move.start)
6806 ..buffer.anchor_after(range_to_move.end),
6807 ) {
6808 let mut start = fold.range.start.to_point(&buffer);
6809 let mut end = fold.range.end.to_point(&buffer);
6810 start.row += row_delta;
6811 end.row += row_delta;
6812 refold_ranges.push((start..end, fold.placeholder.clone()));
6813 }
6814 }
6815 }
6816
6817 // If we didn't move line(s), preserve the existing selections
6818 new_selections.append(&mut contiguous_row_selections);
6819 }
6820
6821 self.transact(cx, |this, cx| {
6822 this.unfold_ranges(unfold_ranges, true, true, cx);
6823 this.buffer.update(cx, |buffer, cx| {
6824 for (range, text) in edits {
6825 buffer.edit([(range, text)], None, cx);
6826 }
6827 });
6828 this.fold_ranges(refold_ranges, true, cx);
6829 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6830 });
6831 }
6832
6833 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6834 let text_layout_details = &self.text_layout_details(cx);
6835 self.transact(cx, |this, cx| {
6836 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6837 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6838 let line_mode = s.line_mode;
6839 s.move_with(|display_map, selection| {
6840 if !selection.is_empty() || line_mode {
6841 return;
6842 }
6843
6844 let mut head = selection.head();
6845 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6846 if head.column() == display_map.line_len(head.row()) {
6847 transpose_offset = display_map
6848 .buffer_snapshot
6849 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6850 }
6851
6852 if transpose_offset == 0 {
6853 return;
6854 }
6855
6856 *head.column_mut() += 1;
6857 head = display_map.clip_point(head, Bias::Right);
6858 let goal = SelectionGoal::HorizontalPosition(
6859 display_map
6860 .x_for_display_point(head, text_layout_details)
6861 .into(),
6862 );
6863 selection.collapse_to(head, goal);
6864
6865 let transpose_start = display_map
6866 .buffer_snapshot
6867 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6868 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6869 let transpose_end = display_map
6870 .buffer_snapshot
6871 .clip_offset(transpose_offset + 1, Bias::Right);
6872 if let Some(ch) =
6873 display_map.buffer_snapshot.chars_at(transpose_start).next()
6874 {
6875 edits.push((transpose_start..transpose_offset, String::new()));
6876 edits.push((transpose_end..transpose_end, ch.to_string()));
6877 }
6878 }
6879 });
6880 edits
6881 });
6882 this.buffer
6883 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6884 let selections = this.selections.all::<usize>(cx);
6885 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6886 s.select(selections);
6887 });
6888 });
6889 }
6890
6891 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6892 self.rewrap_impl(true, cx)
6893 }
6894
6895 pub fn rewrap_impl(&mut self, only_text: bool, cx: &mut ViewContext<Self>) {
6896 let buffer = self.buffer.read(cx).snapshot(cx);
6897 let selections = self.selections.all::<Point>(cx);
6898 let mut selections = selections.iter().peekable();
6899
6900 let mut edits = Vec::new();
6901 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6902
6903 while let Some(selection) = selections.next() {
6904 let mut start_row = selection.start.row;
6905 let mut end_row = selection.end.row;
6906
6907 // Skip selections that overlap with a range that has already been rewrapped.
6908 let selection_range = start_row..end_row;
6909 if rewrapped_row_ranges
6910 .iter()
6911 .any(|range| range.overlaps(&selection_range))
6912 {
6913 continue;
6914 }
6915
6916 let mut should_rewrap = !only_text;
6917
6918 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6919 match language_scope.language_name().0.as_ref() {
6920 "Markdown" | "Plain Text" => {
6921 should_rewrap = true;
6922 }
6923 _ => {}
6924 }
6925 }
6926
6927 // Since not all lines in the selection may be at the same indent
6928 // level, choose the indent size that is the most common between all
6929 // of the lines.
6930 //
6931 // If there is a tie, we use the deepest indent.
6932 let (indent_size, indent_end) = {
6933 let mut indent_size_occurrences = HashMap::default();
6934 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6935
6936 for row in start_row..=end_row {
6937 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6938 rows_by_indent_size.entry(indent).or_default().push(row);
6939 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6940 }
6941
6942 let indent_size = indent_size_occurrences
6943 .into_iter()
6944 .max_by_key(|(indent, count)| (*count, indent.len))
6945 .map(|(indent, _)| indent)
6946 .unwrap_or_default();
6947 let row = rows_by_indent_size[&indent_size][0];
6948 let indent_end = Point::new(row, indent_size.len);
6949
6950 (indent_size, indent_end)
6951 };
6952
6953 let mut line_prefix = indent_size.chars().collect::<String>();
6954
6955 if let Some(comment_prefix) =
6956 buffer
6957 .language_scope_at(selection.head())
6958 .and_then(|language| {
6959 language
6960 .line_comment_prefixes()
6961 .iter()
6962 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6963 .cloned()
6964 })
6965 {
6966 line_prefix.push_str(&comment_prefix);
6967 should_rewrap = true;
6968 }
6969
6970 if selection.is_empty() {
6971 'expand_upwards: while start_row > 0 {
6972 let prev_row = start_row - 1;
6973 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6974 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6975 {
6976 start_row = prev_row;
6977 } else {
6978 break 'expand_upwards;
6979 }
6980 }
6981
6982 'expand_downwards: while end_row < buffer.max_point().row {
6983 let next_row = end_row + 1;
6984 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6985 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6986 {
6987 end_row = next_row;
6988 } else {
6989 break 'expand_downwards;
6990 }
6991 }
6992 }
6993
6994 if !should_rewrap {
6995 continue;
6996 }
6997
6998 let start = Point::new(start_row, 0);
6999 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7000 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7001 let Some(lines_without_prefixes) = selection_text
7002 .lines()
7003 .map(|line| {
7004 line.strip_prefix(&line_prefix)
7005 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7006 .ok_or_else(|| {
7007 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7008 })
7009 })
7010 .collect::<Result<Vec<_>, _>>()
7011 .log_err()
7012 else {
7013 continue;
7014 };
7015
7016 let unwrapped_text = lines_without_prefixes.join(" ");
7017 let wrap_column = buffer
7018 .settings_at(Point::new(start_row, 0), cx)
7019 .preferred_line_length as usize;
7020 let mut wrapped_text = String::new();
7021 let mut current_line = line_prefix.clone();
7022 for word in unwrapped_text.split_whitespace() {
7023 if current_line.len() + word.len() >= wrap_column {
7024 wrapped_text.push_str(¤t_line);
7025 wrapped_text.push('\n');
7026 current_line.truncate(line_prefix.len());
7027 }
7028
7029 if current_line.len() > line_prefix.len() {
7030 current_line.push(' ');
7031 }
7032
7033 current_line.push_str(word);
7034 }
7035
7036 if !current_line.is_empty() {
7037 wrapped_text.push_str(¤t_line);
7038 }
7039
7040 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
7041 let mut offset = start.to_offset(&buffer);
7042 let mut moved_since_edit = true;
7043
7044 for change in diff.iter_all_changes() {
7045 let value = change.value();
7046 match change.tag() {
7047 ChangeTag::Equal => {
7048 offset += value.len();
7049 moved_since_edit = true;
7050 }
7051 ChangeTag::Delete => {
7052 let start = buffer.anchor_after(offset);
7053 let end = buffer.anchor_before(offset + value.len());
7054
7055 if moved_since_edit {
7056 edits.push((start..end, String::new()));
7057 } else {
7058 edits.last_mut().unwrap().0.end = end;
7059 }
7060
7061 offset += value.len();
7062 moved_since_edit = false;
7063 }
7064 ChangeTag::Insert => {
7065 if moved_since_edit {
7066 let anchor = buffer.anchor_after(offset);
7067 edits.push((anchor..anchor, value.to_string()));
7068 } else {
7069 edits.last_mut().unwrap().1.push_str(value);
7070 }
7071
7072 moved_since_edit = false;
7073 }
7074 }
7075 }
7076
7077 rewrapped_row_ranges.push(start_row..=end_row);
7078 }
7079
7080 self.buffer
7081 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7082 }
7083
7084 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7085 let mut text = String::new();
7086 let buffer = self.buffer.read(cx).snapshot(cx);
7087 let mut selections = self.selections.all::<Point>(cx);
7088 let mut clipboard_selections = Vec::with_capacity(selections.len());
7089 {
7090 let max_point = buffer.max_point();
7091 let mut is_first = true;
7092 for selection in &mut selections {
7093 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7094 if is_entire_line {
7095 selection.start = Point::new(selection.start.row, 0);
7096 if !selection.is_empty() && selection.end.column == 0 {
7097 selection.end = cmp::min(max_point, selection.end);
7098 } else {
7099 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7100 }
7101 selection.goal = SelectionGoal::None;
7102 }
7103 if is_first {
7104 is_first = false;
7105 } else {
7106 text += "\n";
7107 }
7108 let mut len = 0;
7109 for chunk in buffer.text_for_range(selection.start..selection.end) {
7110 text.push_str(chunk);
7111 len += chunk.len();
7112 }
7113 clipboard_selections.push(ClipboardSelection {
7114 len,
7115 is_entire_line,
7116 first_line_indent: buffer
7117 .indent_size_for_line(MultiBufferRow(selection.start.row))
7118 .len,
7119 });
7120 }
7121 }
7122
7123 self.transact(cx, |this, cx| {
7124 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7125 s.select(selections);
7126 });
7127 this.insert("", cx);
7128 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7129 text,
7130 clipboard_selections,
7131 ));
7132 });
7133 }
7134
7135 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7136 let selections = self.selections.all::<Point>(cx);
7137 let buffer = self.buffer.read(cx).read(cx);
7138 let mut text = String::new();
7139
7140 let mut clipboard_selections = Vec::with_capacity(selections.len());
7141 {
7142 let max_point = buffer.max_point();
7143 let mut is_first = true;
7144 for selection in selections.iter() {
7145 let mut start = selection.start;
7146 let mut end = selection.end;
7147 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7148 if is_entire_line {
7149 start = Point::new(start.row, 0);
7150 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7151 }
7152 if is_first {
7153 is_first = false;
7154 } else {
7155 text += "\n";
7156 }
7157 let mut len = 0;
7158 for chunk in buffer.text_for_range(start..end) {
7159 text.push_str(chunk);
7160 len += chunk.len();
7161 }
7162 clipboard_selections.push(ClipboardSelection {
7163 len,
7164 is_entire_line,
7165 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7166 });
7167 }
7168 }
7169
7170 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7171 text,
7172 clipboard_selections,
7173 ));
7174 }
7175
7176 pub fn do_paste(
7177 &mut self,
7178 text: &String,
7179 clipboard_selections: Option<Vec<ClipboardSelection>>,
7180 handle_entire_lines: bool,
7181 cx: &mut ViewContext<Self>,
7182 ) {
7183 if self.read_only(cx) {
7184 return;
7185 }
7186
7187 let clipboard_text = Cow::Borrowed(text);
7188
7189 self.transact(cx, |this, cx| {
7190 if let Some(mut clipboard_selections) = clipboard_selections {
7191 let old_selections = this.selections.all::<usize>(cx);
7192 let all_selections_were_entire_line =
7193 clipboard_selections.iter().all(|s| s.is_entire_line);
7194 let first_selection_indent_column =
7195 clipboard_selections.first().map(|s| s.first_line_indent);
7196 if clipboard_selections.len() != old_selections.len() {
7197 clipboard_selections.drain(..);
7198 }
7199
7200 this.buffer.update(cx, |buffer, cx| {
7201 let snapshot = buffer.read(cx);
7202 let mut start_offset = 0;
7203 let mut edits = Vec::new();
7204 let mut original_indent_columns = Vec::new();
7205 for (ix, selection) in old_selections.iter().enumerate() {
7206 let to_insert;
7207 let entire_line;
7208 let original_indent_column;
7209 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7210 let end_offset = start_offset + clipboard_selection.len;
7211 to_insert = &clipboard_text[start_offset..end_offset];
7212 entire_line = clipboard_selection.is_entire_line;
7213 start_offset = end_offset + 1;
7214 original_indent_column = Some(clipboard_selection.first_line_indent);
7215 } else {
7216 to_insert = clipboard_text.as_str();
7217 entire_line = all_selections_were_entire_line;
7218 original_indent_column = first_selection_indent_column
7219 }
7220
7221 // If the corresponding selection was empty when this slice of the
7222 // clipboard text was written, then the entire line containing the
7223 // selection was copied. If this selection is also currently empty,
7224 // then paste the line before the current line of the buffer.
7225 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7226 let column = selection.start.to_point(&snapshot).column as usize;
7227 let line_start = selection.start - column;
7228 line_start..line_start
7229 } else {
7230 selection.range()
7231 };
7232
7233 edits.push((range, to_insert));
7234 original_indent_columns.extend(original_indent_column);
7235 }
7236 drop(snapshot);
7237
7238 buffer.edit(
7239 edits,
7240 Some(AutoindentMode::Block {
7241 original_indent_columns,
7242 }),
7243 cx,
7244 );
7245 });
7246
7247 let selections = this.selections.all::<usize>(cx);
7248 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7249 } else {
7250 this.insert(&clipboard_text, cx);
7251 }
7252 });
7253 }
7254
7255 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7256 if let Some(item) = cx.read_from_clipboard() {
7257 let entries = item.entries();
7258
7259 match entries.first() {
7260 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7261 // of all the pasted entries.
7262 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7263 .do_paste(
7264 clipboard_string.text(),
7265 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7266 true,
7267 cx,
7268 ),
7269 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7270 }
7271 }
7272 }
7273
7274 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7275 if self.read_only(cx) {
7276 return;
7277 }
7278
7279 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7280 if let Some((selections, _)) =
7281 self.selection_history.transaction(transaction_id).cloned()
7282 {
7283 self.change_selections(None, cx, |s| {
7284 s.select_anchors(selections.to_vec());
7285 });
7286 }
7287 self.request_autoscroll(Autoscroll::fit(), cx);
7288 self.unmark_text(cx);
7289 self.refresh_inline_completion(true, false, cx);
7290 cx.emit(EditorEvent::Edited { transaction_id });
7291 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7292 }
7293 }
7294
7295 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7296 if self.read_only(cx) {
7297 return;
7298 }
7299
7300 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7301 if let Some((_, Some(selections))) =
7302 self.selection_history.transaction(transaction_id).cloned()
7303 {
7304 self.change_selections(None, cx, |s| {
7305 s.select_anchors(selections.to_vec());
7306 });
7307 }
7308 self.request_autoscroll(Autoscroll::fit(), cx);
7309 self.unmark_text(cx);
7310 self.refresh_inline_completion(true, false, cx);
7311 cx.emit(EditorEvent::Edited { transaction_id });
7312 }
7313 }
7314
7315 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7316 self.buffer
7317 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7318 }
7319
7320 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7321 self.buffer
7322 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7323 }
7324
7325 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7326 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7327 let line_mode = s.line_mode;
7328 s.move_with(|map, selection| {
7329 let cursor = if selection.is_empty() && !line_mode {
7330 movement::left(map, selection.start)
7331 } else {
7332 selection.start
7333 };
7334 selection.collapse_to(cursor, SelectionGoal::None);
7335 });
7336 })
7337 }
7338
7339 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7340 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7341 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7342 })
7343 }
7344
7345 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7346 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7347 let line_mode = s.line_mode;
7348 s.move_with(|map, selection| {
7349 let cursor = if selection.is_empty() && !line_mode {
7350 movement::right(map, selection.end)
7351 } else {
7352 selection.end
7353 };
7354 selection.collapse_to(cursor, SelectionGoal::None)
7355 });
7356 })
7357 }
7358
7359 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7360 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7361 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7362 })
7363 }
7364
7365 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7366 if self.take_rename(true, cx).is_some() {
7367 return;
7368 }
7369
7370 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7371 cx.propagate();
7372 return;
7373 }
7374
7375 let text_layout_details = &self.text_layout_details(cx);
7376 let selection_count = self.selections.count();
7377 let first_selection = self.selections.first_anchor();
7378
7379 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7380 let line_mode = s.line_mode;
7381 s.move_with(|map, selection| {
7382 if !selection.is_empty() && !line_mode {
7383 selection.goal = SelectionGoal::None;
7384 }
7385 let (cursor, goal) = movement::up(
7386 map,
7387 selection.start,
7388 selection.goal,
7389 false,
7390 text_layout_details,
7391 );
7392 selection.collapse_to(cursor, goal);
7393 });
7394 });
7395
7396 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7397 {
7398 cx.propagate();
7399 }
7400 }
7401
7402 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7403 if self.take_rename(true, cx).is_some() {
7404 return;
7405 }
7406
7407 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7408 cx.propagate();
7409 return;
7410 }
7411
7412 let text_layout_details = &self.text_layout_details(cx);
7413
7414 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7415 let line_mode = s.line_mode;
7416 s.move_with(|map, selection| {
7417 if !selection.is_empty() && !line_mode {
7418 selection.goal = SelectionGoal::None;
7419 }
7420 let (cursor, goal) = movement::up_by_rows(
7421 map,
7422 selection.start,
7423 action.lines,
7424 selection.goal,
7425 false,
7426 text_layout_details,
7427 );
7428 selection.collapse_to(cursor, goal);
7429 });
7430 })
7431 }
7432
7433 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7434 if self.take_rename(true, cx).is_some() {
7435 return;
7436 }
7437
7438 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7439 cx.propagate();
7440 return;
7441 }
7442
7443 let text_layout_details = &self.text_layout_details(cx);
7444
7445 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7446 let line_mode = s.line_mode;
7447 s.move_with(|map, selection| {
7448 if !selection.is_empty() && !line_mode {
7449 selection.goal = SelectionGoal::None;
7450 }
7451 let (cursor, goal) = movement::down_by_rows(
7452 map,
7453 selection.start,
7454 action.lines,
7455 selection.goal,
7456 false,
7457 text_layout_details,
7458 );
7459 selection.collapse_to(cursor, goal);
7460 });
7461 })
7462 }
7463
7464 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7465 let text_layout_details = &self.text_layout_details(cx);
7466 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7467 s.move_heads_with(|map, head, goal| {
7468 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7469 })
7470 })
7471 }
7472
7473 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7474 let text_layout_details = &self.text_layout_details(cx);
7475 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7476 s.move_heads_with(|map, head, goal| {
7477 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7478 })
7479 })
7480 }
7481
7482 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7483 let Some(row_count) = self.visible_row_count() else {
7484 return;
7485 };
7486
7487 let text_layout_details = &self.text_layout_details(cx);
7488
7489 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7490 s.move_heads_with(|map, head, goal| {
7491 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7492 })
7493 })
7494 }
7495
7496 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7497 if self.take_rename(true, cx).is_some() {
7498 return;
7499 }
7500
7501 if self
7502 .context_menu
7503 .write()
7504 .as_mut()
7505 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7506 .unwrap_or(false)
7507 {
7508 return;
7509 }
7510
7511 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7512 cx.propagate();
7513 return;
7514 }
7515
7516 let Some(row_count) = self.visible_row_count() else {
7517 return;
7518 };
7519
7520 let autoscroll = if action.center_cursor {
7521 Autoscroll::center()
7522 } else {
7523 Autoscroll::fit()
7524 };
7525
7526 let text_layout_details = &self.text_layout_details(cx);
7527
7528 self.change_selections(Some(autoscroll), cx, |s| {
7529 let line_mode = s.line_mode;
7530 s.move_with(|map, selection| {
7531 if !selection.is_empty() && !line_mode {
7532 selection.goal = SelectionGoal::None;
7533 }
7534 let (cursor, goal) = movement::up_by_rows(
7535 map,
7536 selection.end,
7537 row_count,
7538 selection.goal,
7539 false,
7540 text_layout_details,
7541 );
7542 selection.collapse_to(cursor, goal);
7543 });
7544 });
7545 }
7546
7547 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7548 let text_layout_details = &self.text_layout_details(cx);
7549 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7550 s.move_heads_with(|map, head, goal| {
7551 movement::up(map, head, goal, false, text_layout_details)
7552 })
7553 })
7554 }
7555
7556 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7557 self.take_rename(true, cx);
7558
7559 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7560 cx.propagate();
7561 return;
7562 }
7563
7564 let text_layout_details = &self.text_layout_details(cx);
7565 let selection_count = self.selections.count();
7566 let first_selection = self.selections.first_anchor();
7567
7568 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7569 let line_mode = s.line_mode;
7570 s.move_with(|map, selection| {
7571 if !selection.is_empty() && !line_mode {
7572 selection.goal = SelectionGoal::None;
7573 }
7574 let (cursor, goal) = movement::down(
7575 map,
7576 selection.end,
7577 selection.goal,
7578 false,
7579 text_layout_details,
7580 );
7581 selection.collapse_to(cursor, goal);
7582 });
7583 });
7584
7585 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7586 {
7587 cx.propagate();
7588 }
7589 }
7590
7591 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7592 let Some(row_count) = self.visible_row_count() else {
7593 return;
7594 };
7595
7596 let text_layout_details = &self.text_layout_details(cx);
7597
7598 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7599 s.move_heads_with(|map, head, goal| {
7600 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7601 })
7602 })
7603 }
7604
7605 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7606 if self.take_rename(true, cx).is_some() {
7607 return;
7608 }
7609
7610 if self
7611 .context_menu
7612 .write()
7613 .as_mut()
7614 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7615 .unwrap_or(false)
7616 {
7617 return;
7618 }
7619
7620 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7621 cx.propagate();
7622 return;
7623 }
7624
7625 let Some(row_count) = self.visible_row_count() else {
7626 return;
7627 };
7628
7629 let autoscroll = if action.center_cursor {
7630 Autoscroll::center()
7631 } else {
7632 Autoscroll::fit()
7633 };
7634
7635 let text_layout_details = &self.text_layout_details(cx);
7636 self.change_selections(Some(autoscroll), cx, |s| {
7637 let line_mode = s.line_mode;
7638 s.move_with(|map, selection| {
7639 if !selection.is_empty() && !line_mode {
7640 selection.goal = SelectionGoal::None;
7641 }
7642 let (cursor, goal) = movement::down_by_rows(
7643 map,
7644 selection.end,
7645 row_count,
7646 selection.goal,
7647 false,
7648 text_layout_details,
7649 );
7650 selection.collapse_to(cursor, goal);
7651 });
7652 });
7653 }
7654
7655 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7656 let text_layout_details = &self.text_layout_details(cx);
7657 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7658 s.move_heads_with(|map, head, goal| {
7659 movement::down(map, head, goal, false, text_layout_details)
7660 })
7661 });
7662 }
7663
7664 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7665 if let Some(context_menu) = self.context_menu.write().as_mut() {
7666 context_menu.select_first(self.completion_provider.as_deref(), cx);
7667 }
7668 }
7669
7670 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7671 if let Some(context_menu) = self.context_menu.write().as_mut() {
7672 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7673 }
7674 }
7675
7676 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7677 if let Some(context_menu) = self.context_menu.write().as_mut() {
7678 context_menu.select_next(self.completion_provider.as_deref(), cx);
7679 }
7680 }
7681
7682 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7683 if let Some(context_menu) = self.context_menu.write().as_mut() {
7684 context_menu.select_last(self.completion_provider.as_deref(), cx);
7685 }
7686 }
7687
7688 pub fn move_to_previous_word_start(
7689 &mut self,
7690 _: &MoveToPreviousWordStart,
7691 cx: &mut ViewContext<Self>,
7692 ) {
7693 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7694 s.move_cursors_with(|map, head, _| {
7695 (
7696 movement::previous_word_start(map, head),
7697 SelectionGoal::None,
7698 )
7699 });
7700 })
7701 }
7702
7703 pub fn move_to_previous_subword_start(
7704 &mut self,
7705 _: &MoveToPreviousSubwordStart,
7706 cx: &mut ViewContext<Self>,
7707 ) {
7708 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7709 s.move_cursors_with(|map, head, _| {
7710 (
7711 movement::previous_subword_start(map, head),
7712 SelectionGoal::None,
7713 )
7714 });
7715 })
7716 }
7717
7718 pub fn select_to_previous_word_start(
7719 &mut self,
7720 _: &SelectToPreviousWordStart,
7721 cx: &mut ViewContext<Self>,
7722 ) {
7723 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7724 s.move_heads_with(|map, head, _| {
7725 (
7726 movement::previous_word_start(map, head),
7727 SelectionGoal::None,
7728 )
7729 });
7730 })
7731 }
7732
7733 pub fn select_to_previous_subword_start(
7734 &mut self,
7735 _: &SelectToPreviousSubwordStart,
7736 cx: &mut ViewContext<Self>,
7737 ) {
7738 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7739 s.move_heads_with(|map, head, _| {
7740 (
7741 movement::previous_subword_start(map, head),
7742 SelectionGoal::None,
7743 )
7744 });
7745 })
7746 }
7747
7748 pub fn delete_to_previous_word_start(
7749 &mut self,
7750 action: &DeleteToPreviousWordStart,
7751 cx: &mut ViewContext<Self>,
7752 ) {
7753 self.transact(cx, |this, cx| {
7754 this.select_autoclose_pair(cx);
7755 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7756 let line_mode = s.line_mode;
7757 s.move_with(|map, selection| {
7758 if selection.is_empty() && !line_mode {
7759 let cursor = if action.ignore_newlines {
7760 movement::previous_word_start(map, selection.head())
7761 } else {
7762 movement::previous_word_start_or_newline(map, selection.head())
7763 };
7764 selection.set_head(cursor, SelectionGoal::None);
7765 }
7766 });
7767 });
7768 this.insert("", cx);
7769 });
7770 }
7771
7772 pub fn delete_to_previous_subword_start(
7773 &mut self,
7774 _: &DeleteToPreviousSubwordStart,
7775 cx: &mut ViewContext<Self>,
7776 ) {
7777 self.transact(cx, |this, cx| {
7778 this.select_autoclose_pair(cx);
7779 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7780 let line_mode = s.line_mode;
7781 s.move_with(|map, selection| {
7782 if selection.is_empty() && !line_mode {
7783 let cursor = movement::previous_subword_start(map, selection.head());
7784 selection.set_head(cursor, SelectionGoal::None);
7785 }
7786 });
7787 });
7788 this.insert("", cx);
7789 });
7790 }
7791
7792 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7793 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7794 s.move_cursors_with(|map, head, _| {
7795 (movement::next_word_end(map, head), SelectionGoal::None)
7796 });
7797 })
7798 }
7799
7800 pub fn move_to_next_subword_end(
7801 &mut self,
7802 _: &MoveToNextSubwordEnd,
7803 cx: &mut ViewContext<Self>,
7804 ) {
7805 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7806 s.move_cursors_with(|map, head, _| {
7807 (movement::next_subword_end(map, head), SelectionGoal::None)
7808 });
7809 })
7810 }
7811
7812 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7813 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7814 s.move_heads_with(|map, head, _| {
7815 (movement::next_word_end(map, head), SelectionGoal::None)
7816 });
7817 })
7818 }
7819
7820 pub fn select_to_next_subword_end(
7821 &mut self,
7822 _: &SelectToNextSubwordEnd,
7823 cx: &mut ViewContext<Self>,
7824 ) {
7825 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7826 s.move_heads_with(|map, head, _| {
7827 (movement::next_subword_end(map, head), SelectionGoal::None)
7828 });
7829 })
7830 }
7831
7832 pub fn delete_to_next_word_end(
7833 &mut self,
7834 action: &DeleteToNextWordEnd,
7835 cx: &mut ViewContext<Self>,
7836 ) {
7837 self.transact(cx, |this, cx| {
7838 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7839 let line_mode = s.line_mode;
7840 s.move_with(|map, selection| {
7841 if selection.is_empty() && !line_mode {
7842 let cursor = if action.ignore_newlines {
7843 movement::next_word_end(map, selection.head())
7844 } else {
7845 movement::next_word_end_or_newline(map, selection.head())
7846 };
7847 selection.set_head(cursor, SelectionGoal::None);
7848 }
7849 });
7850 });
7851 this.insert("", cx);
7852 });
7853 }
7854
7855 pub fn delete_to_next_subword_end(
7856 &mut self,
7857 _: &DeleteToNextSubwordEnd,
7858 cx: &mut ViewContext<Self>,
7859 ) {
7860 self.transact(cx, |this, cx| {
7861 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7862 s.move_with(|map, selection| {
7863 if selection.is_empty() {
7864 let cursor = movement::next_subword_end(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_beginning_of_line(
7874 &mut self,
7875 action: &MoveToBeginningOfLine,
7876 cx: &mut ViewContext<Self>,
7877 ) {
7878 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7879 s.move_cursors_with(|map, head, _| {
7880 (
7881 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7882 SelectionGoal::None,
7883 )
7884 });
7885 })
7886 }
7887
7888 pub fn select_to_beginning_of_line(
7889 &mut self,
7890 action: &SelectToBeginningOfLine,
7891 cx: &mut ViewContext<Self>,
7892 ) {
7893 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7894 s.move_heads_with(|map, head, _| {
7895 (
7896 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7897 SelectionGoal::None,
7898 )
7899 });
7900 });
7901 }
7902
7903 pub fn delete_to_beginning_of_line(
7904 &mut self,
7905 _: &DeleteToBeginningOfLine,
7906 cx: &mut ViewContext<Self>,
7907 ) {
7908 self.transact(cx, |this, cx| {
7909 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7910 s.move_with(|_, selection| {
7911 selection.reversed = true;
7912 });
7913 });
7914
7915 this.select_to_beginning_of_line(
7916 &SelectToBeginningOfLine {
7917 stop_at_soft_wraps: false,
7918 },
7919 cx,
7920 );
7921 this.backspace(&Backspace, cx);
7922 });
7923 }
7924
7925 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7926 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7927 s.move_cursors_with(|map, head, _| {
7928 (
7929 movement::line_end(map, head, action.stop_at_soft_wraps),
7930 SelectionGoal::None,
7931 )
7932 });
7933 })
7934 }
7935
7936 pub fn select_to_end_of_line(
7937 &mut self,
7938 action: &SelectToEndOfLine,
7939 cx: &mut ViewContext<Self>,
7940 ) {
7941 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7942 s.move_heads_with(|map, head, _| {
7943 (
7944 movement::line_end(map, head, action.stop_at_soft_wraps),
7945 SelectionGoal::None,
7946 )
7947 });
7948 })
7949 }
7950
7951 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7952 self.transact(cx, |this, cx| {
7953 this.select_to_end_of_line(
7954 &SelectToEndOfLine {
7955 stop_at_soft_wraps: false,
7956 },
7957 cx,
7958 );
7959 this.delete(&Delete, cx);
7960 });
7961 }
7962
7963 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7964 self.transact(cx, |this, cx| {
7965 this.select_to_end_of_line(
7966 &SelectToEndOfLine {
7967 stop_at_soft_wraps: false,
7968 },
7969 cx,
7970 );
7971 this.cut(&Cut, cx);
7972 });
7973 }
7974
7975 pub fn move_to_start_of_paragraph(
7976 &mut self,
7977 _: &MoveToStartOfParagraph,
7978 cx: &mut ViewContext<Self>,
7979 ) {
7980 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7981 cx.propagate();
7982 return;
7983 }
7984
7985 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7986 s.move_with(|map, selection| {
7987 selection.collapse_to(
7988 movement::start_of_paragraph(map, selection.head(), 1),
7989 SelectionGoal::None,
7990 )
7991 });
7992 })
7993 }
7994
7995 pub fn move_to_end_of_paragraph(
7996 &mut self,
7997 _: &MoveToEndOfParagraph,
7998 cx: &mut ViewContext<Self>,
7999 ) {
8000 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8001 cx.propagate();
8002 return;
8003 }
8004
8005 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8006 s.move_with(|map, selection| {
8007 selection.collapse_to(
8008 movement::end_of_paragraph(map, selection.head(), 1),
8009 SelectionGoal::None,
8010 )
8011 });
8012 })
8013 }
8014
8015 pub fn select_to_start_of_paragraph(
8016 &mut self,
8017 _: &SelectToStartOfParagraph,
8018 cx: &mut ViewContext<Self>,
8019 ) {
8020 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8021 cx.propagate();
8022 return;
8023 }
8024
8025 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8026 s.move_heads_with(|map, head, _| {
8027 (
8028 movement::start_of_paragraph(map, head, 1),
8029 SelectionGoal::None,
8030 )
8031 });
8032 })
8033 }
8034
8035 pub fn select_to_end_of_paragraph(
8036 &mut self,
8037 _: &SelectToEndOfParagraph,
8038 cx: &mut ViewContext<Self>,
8039 ) {
8040 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8041 cx.propagate();
8042 return;
8043 }
8044
8045 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8046 s.move_heads_with(|map, head, _| {
8047 (
8048 movement::end_of_paragraph(map, head, 1),
8049 SelectionGoal::None,
8050 )
8051 });
8052 })
8053 }
8054
8055 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8056 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8057 cx.propagate();
8058 return;
8059 }
8060
8061 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8062 s.select_ranges(vec![0..0]);
8063 });
8064 }
8065
8066 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8067 let mut selection = self.selections.last::<Point>(cx);
8068 selection.set_head(Point::zero(), SelectionGoal::None);
8069
8070 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8071 s.select(vec![selection]);
8072 });
8073 }
8074
8075 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8076 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8077 cx.propagate();
8078 return;
8079 }
8080
8081 let cursor = self.buffer.read(cx).read(cx).len();
8082 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8083 s.select_ranges(vec![cursor..cursor])
8084 });
8085 }
8086
8087 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8088 self.nav_history = nav_history;
8089 }
8090
8091 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8092 self.nav_history.as_ref()
8093 }
8094
8095 fn push_to_nav_history(
8096 &mut self,
8097 cursor_anchor: Anchor,
8098 new_position: Option<Point>,
8099 cx: &mut ViewContext<Self>,
8100 ) {
8101 if let Some(nav_history) = self.nav_history.as_mut() {
8102 let buffer = self.buffer.read(cx).read(cx);
8103 let cursor_position = cursor_anchor.to_point(&buffer);
8104 let scroll_state = self.scroll_manager.anchor();
8105 let scroll_top_row = scroll_state.top_row(&buffer);
8106 drop(buffer);
8107
8108 if let Some(new_position) = new_position {
8109 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8110 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8111 return;
8112 }
8113 }
8114
8115 nav_history.push(
8116 Some(NavigationData {
8117 cursor_anchor,
8118 cursor_position,
8119 scroll_anchor: scroll_state,
8120 scroll_top_row,
8121 }),
8122 cx,
8123 );
8124 }
8125 }
8126
8127 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8128 let buffer = self.buffer.read(cx).snapshot(cx);
8129 let mut selection = self.selections.first::<usize>(cx);
8130 selection.set_head(buffer.len(), SelectionGoal::None);
8131 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8132 s.select(vec![selection]);
8133 });
8134 }
8135
8136 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8137 let end = self.buffer.read(cx).read(cx).len();
8138 self.change_selections(None, cx, |s| {
8139 s.select_ranges(vec![0..end]);
8140 });
8141 }
8142
8143 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8144 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8145 let mut selections = self.selections.all::<Point>(cx);
8146 let max_point = display_map.buffer_snapshot.max_point();
8147 for selection in &mut selections {
8148 let rows = selection.spanned_rows(true, &display_map);
8149 selection.start = Point::new(rows.start.0, 0);
8150 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8151 selection.reversed = false;
8152 }
8153 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8154 s.select(selections);
8155 });
8156 }
8157
8158 pub fn split_selection_into_lines(
8159 &mut self,
8160 _: &SplitSelectionIntoLines,
8161 cx: &mut ViewContext<Self>,
8162 ) {
8163 let mut to_unfold = Vec::new();
8164 let mut new_selection_ranges = Vec::new();
8165 {
8166 let selections = self.selections.all::<Point>(cx);
8167 let buffer = self.buffer.read(cx).read(cx);
8168 for selection in selections {
8169 for row in selection.start.row..selection.end.row {
8170 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8171 new_selection_ranges.push(cursor..cursor);
8172 }
8173 new_selection_ranges.push(selection.end..selection.end);
8174 to_unfold.push(selection.start..selection.end);
8175 }
8176 }
8177 self.unfold_ranges(to_unfold, true, true, cx);
8178 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8179 s.select_ranges(new_selection_ranges);
8180 });
8181 }
8182
8183 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8184 self.add_selection(true, cx);
8185 }
8186
8187 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8188 self.add_selection(false, cx);
8189 }
8190
8191 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8192 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8193 let mut selections = self.selections.all::<Point>(cx);
8194 let text_layout_details = self.text_layout_details(cx);
8195 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8196 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8197 let range = oldest_selection.display_range(&display_map).sorted();
8198
8199 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8200 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8201 let positions = start_x.min(end_x)..start_x.max(end_x);
8202
8203 selections.clear();
8204 let mut stack = Vec::new();
8205 for row in range.start.row().0..=range.end.row().0 {
8206 if let Some(selection) = self.selections.build_columnar_selection(
8207 &display_map,
8208 DisplayRow(row),
8209 &positions,
8210 oldest_selection.reversed,
8211 &text_layout_details,
8212 ) {
8213 stack.push(selection.id);
8214 selections.push(selection);
8215 }
8216 }
8217
8218 if above {
8219 stack.reverse();
8220 }
8221
8222 AddSelectionsState { above, stack }
8223 });
8224
8225 let last_added_selection = *state.stack.last().unwrap();
8226 let mut new_selections = Vec::new();
8227 if above == state.above {
8228 let end_row = if above {
8229 DisplayRow(0)
8230 } else {
8231 display_map.max_point().row()
8232 };
8233
8234 'outer: for selection in selections {
8235 if selection.id == last_added_selection {
8236 let range = selection.display_range(&display_map).sorted();
8237 debug_assert_eq!(range.start.row(), range.end.row());
8238 let mut row = range.start.row();
8239 let positions =
8240 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8241 px(start)..px(end)
8242 } else {
8243 let start_x =
8244 display_map.x_for_display_point(range.start, &text_layout_details);
8245 let end_x =
8246 display_map.x_for_display_point(range.end, &text_layout_details);
8247 start_x.min(end_x)..start_x.max(end_x)
8248 };
8249
8250 while row != end_row {
8251 if above {
8252 row.0 -= 1;
8253 } else {
8254 row.0 += 1;
8255 }
8256
8257 if let Some(new_selection) = self.selections.build_columnar_selection(
8258 &display_map,
8259 row,
8260 &positions,
8261 selection.reversed,
8262 &text_layout_details,
8263 ) {
8264 state.stack.push(new_selection.id);
8265 if above {
8266 new_selections.push(new_selection);
8267 new_selections.push(selection);
8268 } else {
8269 new_selections.push(selection);
8270 new_selections.push(new_selection);
8271 }
8272
8273 continue 'outer;
8274 }
8275 }
8276 }
8277
8278 new_selections.push(selection);
8279 }
8280 } else {
8281 new_selections = selections;
8282 new_selections.retain(|s| s.id != last_added_selection);
8283 state.stack.pop();
8284 }
8285
8286 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8287 s.select(new_selections);
8288 });
8289 if state.stack.len() > 1 {
8290 self.add_selections_state = Some(state);
8291 }
8292 }
8293
8294 pub fn select_next_match_internal(
8295 &mut self,
8296 display_map: &DisplaySnapshot,
8297 replace_newest: bool,
8298 autoscroll: Option<Autoscroll>,
8299 cx: &mut ViewContext<Self>,
8300 ) -> Result<()> {
8301 fn select_next_match_ranges(
8302 this: &mut Editor,
8303 range: Range<usize>,
8304 replace_newest: bool,
8305 auto_scroll: Option<Autoscroll>,
8306 cx: &mut ViewContext<Editor>,
8307 ) {
8308 this.unfold_ranges([range.clone()], false, true, cx);
8309 this.change_selections(auto_scroll, cx, |s| {
8310 if replace_newest {
8311 s.delete(s.newest_anchor().id);
8312 }
8313 s.insert_range(range.clone());
8314 });
8315 }
8316
8317 let buffer = &display_map.buffer_snapshot;
8318 let mut selections = self.selections.all::<usize>(cx);
8319 if let Some(mut select_next_state) = self.select_next_state.take() {
8320 let query = &select_next_state.query;
8321 if !select_next_state.done {
8322 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8323 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8324 let mut next_selected_range = None;
8325
8326 let bytes_after_last_selection =
8327 buffer.bytes_in_range(last_selection.end..buffer.len());
8328 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8329 let query_matches = query
8330 .stream_find_iter(bytes_after_last_selection)
8331 .map(|result| (last_selection.end, result))
8332 .chain(
8333 query
8334 .stream_find_iter(bytes_before_first_selection)
8335 .map(|result| (0, result)),
8336 );
8337
8338 for (start_offset, query_match) in query_matches {
8339 let query_match = query_match.unwrap(); // can only fail due to I/O
8340 let offset_range =
8341 start_offset + query_match.start()..start_offset + query_match.end();
8342 let display_range = offset_range.start.to_display_point(display_map)
8343 ..offset_range.end.to_display_point(display_map);
8344
8345 if !select_next_state.wordwise
8346 || (!movement::is_inside_word(display_map, display_range.start)
8347 && !movement::is_inside_word(display_map, display_range.end))
8348 {
8349 // TODO: This is n^2, because we might check all the selections
8350 if !selections
8351 .iter()
8352 .any(|selection| selection.range().overlaps(&offset_range))
8353 {
8354 next_selected_range = Some(offset_range);
8355 break;
8356 }
8357 }
8358 }
8359
8360 if let Some(next_selected_range) = next_selected_range {
8361 select_next_match_ranges(
8362 self,
8363 next_selected_range,
8364 replace_newest,
8365 autoscroll,
8366 cx,
8367 );
8368 } else {
8369 select_next_state.done = true;
8370 }
8371 }
8372
8373 self.select_next_state = Some(select_next_state);
8374 } else {
8375 let mut only_carets = true;
8376 let mut same_text_selected = true;
8377 let mut selected_text = None;
8378
8379 let mut selections_iter = selections.iter().peekable();
8380 while let Some(selection) = selections_iter.next() {
8381 if selection.start != selection.end {
8382 only_carets = false;
8383 }
8384
8385 if same_text_selected {
8386 if selected_text.is_none() {
8387 selected_text =
8388 Some(buffer.text_for_range(selection.range()).collect::<String>());
8389 }
8390
8391 if let Some(next_selection) = selections_iter.peek() {
8392 if next_selection.range().len() == selection.range().len() {
8393 let next_selected_text = buffer
8394 .text_for_range(next_selection.range())
8395 .collect::<String>();
8396 if Some(next_selected_text) != selected_text {
8397 same_text_selected = false;
8398 selected_text = None;
8399 }
8400 } else {
8401 same_text_selected = false;
8402 selected_text = None;
8403 }
8404 }
8405 }
8406 }
8407
8408 if only_carets {
8409 for selection in &mut selections {
8410 let word_range = movement::surrounding_word(
8411 display_map,
8412 selection.start.to_display_point(display_map),
8413 );
8414 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8415 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8416 selection.goal = SelectionGoal::None;
8417 selection.reversed = false;
8418 select_next_match_ranges(
8419 self,
8420 selection.start..selection.end,
8421 replace_newest,
8422 autoscroll,
8423 cx,
8424 );
8425 }
8426
8427 if selections.len() == 1 {
8428 let selection = selections
8429 .last()
8430 .expect("ensured that there's only one selection");
8431 let query = buffer
8432 .text_for_range(selection.start..selection.end)
8433 .collect::<String>();
8434 let is_empty = query.is_empty();
8435 let select_state = SelectNextState {
8436 query: AhoCorasick::new(&[query])?,
8437 wordwise: true,
8438 done: is_empty,
8439 };
8440 self.select_next_state = Some(select_state);
8441 } else {
8442 self.select_next_state = None;
8443 }
8444 } else if let Some(selected_text) = selected_text {
8445 self.select_next_state = Some(SelectNextState {
8446 query: AhoCorasick::new(&[selected_text])?,
8447 wordwise: false,
8448 done: false,
8449 });
8450 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8451 }
8452 }
8453 Ok(())
8454 }
8455
8456 pub fn select_all_matches(
8457 &mut self,
8458 _action: &SelectAllMatches,
8459 cx: &mut ViewContext<Self>,
8460 ) -> Result<()> {
8461 self.push_to_selection_history();
8462 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8463
8464 self.select_next_match_internal(&display_map, false, None, cx)?;
8465 let Some(select_next_state) = self.select_next_state.as_mut() else {
8466 return Ok(());
8467 };
8468 if select_next_state.done {
8469 return Ok(());
8470 }
8471
8472 let mut new_selections = self.selections.all::<usize>(cx);
8473
8474 let buffer = &display_map.buffer_snapshot;
8475 let query_matches = select_next_state
8476 .query
8477 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8478
8479 for query_match in query_matches {
8480 let query_match = query_match.unwrap(); // can only fail due to I/O
8481 let offset_range = query_match.start()..query_match.end();
8482 let display_range = offset_range.start.to_display_point(&display_map)
8483 ..offset_range.end.to_display_point(&display_map);
8484
8485 if !select_next_state.wordwise
8486 || (!movement::is_inside_word(&display_map, display_range.start)
8487 && !movement::is_inside_word(&display_map, display_range.end))
8488 {
8489 self.selections.change_with(cx, |selections| {
8490 new_selections.push(Selection {
8491 id: selections.new_selection_id(),
8492 start: offset_range.start,
8493 end: offset_range.end,
8494 reversed: false,
8495 goal: SelectionGoal::None,
8496 });
8497 });
8498 }
8499 }
8500
8501 new_selections.sort_by_key(|selection| selection.start);
8502 let mut ix = 0;
8503 while ix + 1 < new_selections.len() {
8504 let current_selection = &new_selections[ix];
8505 let next_selection = &new_selections[ix + 1];
8506 if current_selection.range().overlaps(&next_selection.range()) {
8507 if current_selection.id < next_selection.id {
8508 new_selections.remove(ix + 1);
8509 } else {
8510 new_selections.remove(ix);
8511 }
8512 } else {
8513 ix += 1;
8514 }
8515 }
8516
8517 select_next_state.done = true;
8518 self.unfold_ranges(
8519 new_selections.iter().map(|selection| selection.range()),
8520 false,
8521 false,
8522 cx,
8523 );
8524 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8525 selections.select(new_selections)
8526 });
8527
8528 Ok(())
8529 }
8530
8531 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8532 self.push_to_selection_history();
8533 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8534 self.select_next_match_internal(
8535 &display_map,
8536 action.replace_newest,
8537 Some(Autoscroll::newest()),
8538 cx,
8539 )?;
8540 Ok(())
8541 }
8542
8543 pub fn select_previous(
8544 &mut self,
8545 action: &SelectPrevious,
8546 cx: &mut ViewContext<Self>,
8547 ) -> Result<()> {
8548 self.push_to_selection_history();
8549 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8550 let buffer = &display_map.buffer_snapshot;
8551 let mut selections = self.selections.all::<usize>(cx);
8552 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8553 let query = &select_prev_state.query;
8554 if !select_prev_state.done {
8555 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8556 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8557 let mut next_selected_range = None;
8558 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8559 let bytes_before_last_selection =
8560 buffer.reversed_bytes_in_range(0..last_selection.start);
8561 let bytes_after_first_selection =
8562 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8563 let query_matches = query
8564 .stream_find_iter(bytes_before_last_selection)
8565 .map(|result| (last_selection.start, result))
8566 .chain(
8567 query
8568 .stream_find_iter(bytes_after_first_selection)
8569 .map(|result| (buffer.len(), result)),
8570 );
8571 for (end_offset, query_match) in query_matches {
8572 let query_match = query_match.unwrap(); // can only fail due to I/O
8573 let offset_range =
8574 end_offset - query_match.end()..end_offset - query_match.start();
8575 let display_range = offset_range.start.to_display_point(&display_map)
8576 ..offset_range.end.to_display_point(&display_map);
8577
8578 if !select_prev_state.wordwise
8579 || (!movement::is_inside_word(&display_map, display_range.start)
8580 && !movement::is_inside_word(&display_map, display_range.end))
8581 {
8582 next_selected_range = Some(offset_range);
8583 break;
8584 }
8585 }
8586
8587 if let Some(next_selected_range) = next_selected_range {
8588 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
8589 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8590 if action.replace_newest {
8591 s.delete(s.newest_anchor().id);
8592 }
8593 s.insert_range(next_selected_range);
8594 });
8595 } else {
8596 select_prev_state.done = true;
8597 }
8598 }
8599
8600 self.select_prev_state = Some(select_prev_state);
8601 } else {
8602 let mut only_carets = true;
8603 let mut same_text_selected = true;
8604 let mut selected_text = None;
8605
8606 let mut selections_iter = selections.iter().peekable();
8607 while let Some(selection) = selections_iter.next() {
8608 if selection.start != selection.end {
8609 only_carets = false;
8610 }
8611
8612 if same_text_selected {
8613 if selected_text.is_none() {
8614 selected_text =
8615 Some(buffer.text_for_range(selection.range()).collect::<String>());
8616 }
8617
8618 if let Some(next_selection) = selections_iter.peek() {
8619 if next_selection.range().len() == selection.range().len() {
8620 let next_selected_text = buffer
8621 .text_for_range(next_selection.range())
8622 .collect::<String>();
8623 if Some(next_selected_text) != selected_text {
8624 same_text_selected = false;
8625 selected_text = None;
8626 }
8627 } else {
8628 same_text_selected = false;
8629 selected_text = None;
8630 }
8631 }
8632 }
8633 }
8634
8635 if only_carets {
8636 for selection in &mut selections {
8637 let word_range = movement::surrounding_word(
8638 &display_map,
8639 selection.start.to_display_point(&display_map),
8640 );
8641 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8642 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8643 selection.goal = SelectionGoal::None;
8644 selection.reversed = false;
8645 }
8646 if selections.len() == 1 {
8647 let selection = selections
8648 .last()
8649 .expect("ensured that there's only one selection");
8650 let query = buffer
8651 .text_for_range(selection.start..selection.end)
8652 .collect::<String>();
8653 let is_empty = query.is_empty();
8654 let select_state = SelectNextState {
8655 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8656 wordwise: true,
8657 done: is_empty,
8658 };
8659 self.select_prev_state = Some(select_state);
8660 } else {
8661 self.select_prev_state = None;
8662 }
8663
8664 self.unfold_ranges(
8665 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8666 false,
8667 true,
8668 cx,
8669 );
8670 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8671 s.select(selections);
8672 });
8673 } else if let Some(selected_text) = selected_text {
8674 self.select_prev_state = Some(SelectNextState {
8675 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8676 wordwise: false,
8677 done: false,
8678 });
8679 self.select_previous(action, cx)?;
8680 }
8681 }
8682 Ok(())
8683 }
8684
8685 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8686 let text_layout_details = &self.text_layout_details(cx);
8687 self.transact(cx, |this, cx| {
8688 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8689 let mut edits = Vec::new();
8690 let mut selection_edit_ranges = Vec::new();
8691 let mut last_toggled_row = None;
8692 let snapshot = this.buffer.read(cx).read(cx);
8693 let empty_str: Arc<str> = Arc::default();
8694 let mut suffixes_inserted = Vec::new();
8695
8696 fn comment_prefix_range(
8697 snapshot: &MultiBufferSnapshot,
8698 row: MultiBufferRow,
8699 comment_prefix: &str,
8700 comment_prefix_whitespace: &str,
8701 ) -> Range<Point> {
8702 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8703
8704 let mut line_bytes = snapshot
8705 .bytes_in_range(start..snapshot.max_point())
8706 .flatten()
8707 .copied();
8708
8709 // If this line currently begins with the line comment prefix, then record
8710 // the range containing the prefix.
8711 if line_bytes
8712 .by_ref()
8713 .take(comment_prefix.len())
8714 .eq(comment_prefix.bytes())
8715 {
8716 // Include any whitespace that matches the comment prefix.
8717 let matching_whitespace_len = line_bytes
8718 .zip(comment_prefix_whitespace.bytes())
8719 .take_while(|(a, b)| a == b)
8720 .count() as u32;
8721 let end = Point::new(
8722 start.row,
8723 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8724 );
8725 start..end
8726 } else {
8727 start..start
8728 }
8729 }
8730
8731 fn comment_suffix_range(
8732 snapshot: &MultiBufferSnapshot,
8733 row: MultiBufferRow,
8734 comment_suffix: &str,
8735 comment_suffix_has_leading_space: bool,
8736 ) -> Range<Point> {
8737 let end = Point::new(row.0, snapshot.line_len(row));
8738 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8739
8740 let mut line_end_bytes = snapshot
8741 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8742 .flatten()
8743 .copied();
8744
8745 let leading_space_len = if suffix_start_column > 0
8746 && line_end_bytes.next() == Some(b' ')
8747 && comment_suffix_has_leading_space
8748 {
8749 1
8750 } else {
8751 0
8752 };
8753
8754 // If this line currently begins with the line comment prefix, then record
8755 // the range containing the prefix.
8756 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8757 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8758 start..end
8759 } else {
8760 end..end
8761 }
8762 }
8763
8764 // TODO: Handle selections that cross excerpts
8765 for selection in &mut selections {
8766 let start_column = snapshot
8767 .indent_size_for_line(MultiBufferRow(selection.start.row))
8768 .len;
8769 let language = if let Some(language) =
8770 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8771 {
8772 language
8773 } else {
8774 continue;
8775 };
8776
8777 selection_edit_ranges.clear();
8778
8779 // If multiple selections contain a given row, avoid processing that
8780 // row more than once.
8781 let mut start_row = MultiBufferRow(selection.start.row);
8782 if last_toggled_row == Some(start_row) {
8783 start_row = start_row.next_row();
8784 }
8785 let end_row =
8786 if selection.end.row > selection.start.row && selection.end.column == 0 {
8787 MultiBufferRow(selection.end.row - 1)
8788 } else {
8789 MultiBufferRow(selection.end.row)
8790 };
8791 last_toggled_row = Some(end_row);
8792
8793 if start_row > end_row {
8794 continue;
8795 }
8796
8797 // If the language has line comments, toggle those.
8798 let full_comment_prefixes = language.line_comment_prefixes();
8799 if !full_comment_prefixes.is_empty() {
8800 let first_prefix = full_comment_prefixes
8801 .first()
8802 .expect("prefixes is non-empty");
8803 let prefix_trimmed_lengths = full_comment_prefixes
8804 .iter()
8805 .map(|p| p.trim_end_matches(' ').len())
8806 .collect::<SmallVec<[usize; 4]>>();
8807
8808 let mut all_selection_lines_are_comments = true;
8809
8810 for row in start_row.0..=end_row.0 {
8811 let row = MultiBufferRow(row);
8812 if start_row < end_row && snapshot.is_line_blank(row) {
8813 continue;
8814 }
8815
8816 let prefix_range = full_comment_prefixes
8817 .iter()
8818 .zip(prefix_trimmed_lengths.iter().copied())
8819 .map(|(prefix, trimmed_prefix_len)| {
8820 comment_prefix_range(
8821 snapshot.deref(),
8822 row,
8823 &prefix[..trimmed_prefix_len],
8824 &prefix[trimmed_prefix_len..],
8825 )
8826 })
8827 .max_by_key(|range| range.end.column - range.start.column)
8828 .expect("prefixes is non-empty");
8829
8830 if prefix_range.is_empty() {
8831 all_selection_lines_are_comments = false;
8832 }
8833
8834 selection_edit_ranges.push(prefix_range);
8835 }
8836
8837 if all_selection_lines_are_comments {
8838 edits.extend(
8839 selection_edit_ranges
8840 .iter()
8841 .cloned()
8842 .map(|range| (range, empty_str.clone())),
8843 );
8844 } else {
8845 let min_column = selection_edit_ranges
8846 .iter()
8847 .map(|range| range.start.column)
8848 .min()
8849 .unwrap_or(0);
8850 edits.extend(selection_edit_ranges.iter().map(|range| {
8851 let position = Point::new(range.start.row, min_column);
8852 (position..position, first_prefix.clone())
8853 }));
8854 }
8855 } else if let Some((full_comment_prefix, comment_suffix)) =
8856 language.block_comment_delimiters()
8857 {
8858 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8859 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8860 let prefix_range = comment_prefix_range(
8861 snapshot.deref(),
8862 start_row,
8863 comment_prefix,
8864 comment_prefix_whitespace,
8865 );
8866 let suffix_range = comment_suffix_range(
8867 snapshot.deref(),
8868 end_row,
8869 comment_suffix.trim_start_matches(' '),
8870 comment_suffix.starts_with(' '),
8871 );
8872
8873 if prefix_range.is_empty() || suffix_range.is_empty() {
8874 edits.push((
8875 prefix_range.start..prefix_range.start,
8876 full_comment_prefix.clone(),
8877 ));
8878 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8879 suffixes_inserted.push((end_row, comment_suffix.len()));
8880 } else {
8881 edits.push((prefix_range, empty_str.clone()));
8882 edits.push((suffix_range, empty_str.clone()));
8883 }
8884 } else {
8885 continue;
8886 }
8887 }
8888
8889 drop(snapshot);
8890 this.buffer.update(cx, |buffer, cx| {
8891 buffer.edit(edits, None, cx);
8892 });
8893
8894 // Adjust selections so that they end before any comment suffixes that
8895 // were inserted.
8896 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8897 let mut selections = this.selections.all::<Point>(cx);
8898 let snapshot = this.buffer.read(cx).read(cx);
8899 for selection in &mut selections {
8900 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8901 match row.cmp(&MultiBufferRow(selection.end.row)) {
8902 Ordering::Less => {
8903 suffixes_inserted.next();
8904 continue;
8905 }
8906 Ordering::Greater => break,
8907 Ordering::Equal => {
8908 if selection.end.column == snapshot.line_len(row) {
8909 if selection.is_empty() {
8910 selection.start.column -= suffix_len as u32;
8911 }
8912 selection.end.column -= suffix_len as u32;
8913 }
8914 break;
8915 }
8916 }
8917 }
8918 }
8919
8920 drop(snapshot);
8921 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8922
8923 let selections = this.selections.all::<Point>(cx);
8924 let selections_on_single_row = selections.windows(2).all(|selections| {
8925 selections[0].start.row == selections[1].start.row
8926 && selections[0].end.row == selections[1].end.row
8927 && selections[0].start.row == selections[0].end.row
8928 });
8929 let selections_selecting = selections
8930 .iter()
8931 .any(|selection| selection.start != selection.end);
8932 let advance_downwards = action.advance_downwards
8933 && selections_on_single_row
8934 && !selections_selecting
8935 && !matches!(this.mode, EditorMode::SingleLine { .. });
8936
8937 if advance_downwards {
8938 let snapshot = this.buffer.read(cx).snapshot(cx);
8939
8940 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8941 s.move_cursors_with(|display_snapshot, display_point, _| {
8942 let mut point = display_point.to_point(display_snapshot);
8943 point.row += 1;
8944 point = snapshot.clip_point(point, Bias::Left);
8945 let display_point = point.to_display_point(display_snapshot);
8946 let goal = SelectionGoal::HorizontalPosition(
8947 display_snapshot
8948 .x_for_display_point(display_point, text_layout_details)
8949 .into(),
8950 );
8951 (display_point, goal)
8952 })
8953 });
8954 }
8955 });
8956 }
8957
8958 pub fn select_enclosing_symbol(
8959 &mut self,
8960 _: &SelectEnclosingSymbol,
8961 cx: &mut ViewContext<Self>,
8962 ) {
8963 let buffer = self.buffer.read(cx).snapshot(cx);
8964 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8965
8966 fn update_selection(
8967 selection: &Selection<usize>,
8968 buffer_snap: &MultiBufferSnapshot,
8969 ) -> Option<Selection<usize>> {
8970 let cursor = selection.head();
8971 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8972 for symbol in symbols.iter().rev() {
8973 let start = symbol.range.start.to_offset(buffer_snap);
8974 let end = symbol.range.end.to_offset(buffer_snap);
8975 let new_range = start..end;
8976 if start < selection.start || end > selection.end {
8977 return Some(Selection {
8978 id: selection.id,
8979 start: new_range.start,
8980 end: new_range.end,
8981 goal: SelectionGoal::None,
8982 reversed: selection.reversed,
8983 });
8984 }
8985 }
8986 None
8987 }
8988
8989 let mut selected_larger_symbol = false;
8990 let new_selections = old_selections
8991 .iter()
8992 .map(|selection| match update_selection(selection, &buffer) {
8993 Some(new_selection) => {
8994 if new_selection.range() != selection.range() {
8995 selected_larger_symbol = true;
8996 }
8997 new_selection
8998 }
8999 None => selection.clone(),
9000 })
9001 .collect::<Vec<_>>();
9002
9003 if selected_larger_symbol {
9004 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9005 s.select(new_selections);
9006 });
9007 }
9008 }
9009
9010 pub fn select_larger_syntax_node(
9011 &mut self,
9012 _: &SelectLargerSyntaxNode,
9013 cx: &mut ViewContext<Self>,
9014 ) {
9015 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9016 let buffer = self.buffer.read(cx).snapshot(cx);
9017 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9018
9019 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9020 let mut selected_larger_node = false;
9021 let new_selections = old_selections
9022 .iter()
9023 .map(|selection| {
9024 let old_range = selection.start..selection.end;
9025 let mut new_range = old_range.clone();
9026 while let Some(containing_range) =
9027 buffer.range_for_syntax_ancestor(new_range.clone())
9028 {
9029 new_range = containing_range;
9030 if !display_map.intersects_fold(new_range.start)
9031 && !display_map.intersects_fold(new_range.end)
9032 {
9033 break;
9034 }
9035 }
9036
9037 selected_larger_node |= new_range != old_range;
9038 Selection {
9039 id: selection.id,
9040 start: new_range.start,
9041 end: new_range.end,
9042 goal: SelectionGoal::None,
9043 reversed: selection.reversed,
9044 }
9045 })
9046 .collect::<Vec<_>>();
9047
9048 if selected_larger_node {
9049 stack.push(old_selections);
9050 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9051 s.select(new_selections);
9052 });
9053 }
9054 self.select_larger_syntax_node_stack = stack;
9055 }
9056
9057 pub fn select_smaller_syntax_node(
9058 &mut self,
9059 _: &SelectSmallerSyntaxNode,
9060 cx: &mut ViewContext<Self>,
9061 ) {
9062 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9063 if let Some(selections) = stack.pop() {
9064 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9065 s.select(selections.to_vec());
9066 });
9067 }
9068 self.select_larger_syntax_node_stack = stack;
9069 }
9070
9071 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9072 if !EditorSettings::get_global(cx).gutter.runnables {
9073 self.clear_tasks();
9074 return Task::ready(());
9075 }
9076 let project = self.project.clone();
9077 cx.spawn(|this, mut cx| async move {
9078 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9079 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9080 }) else {
9081 return;
9082 };
9083
9084 let Some(project) = project else {
9085 return;
9086 };
9087
9088 let hide_runnables = project
9089 .update(&mut cx, |project, cx| {
9090 // Do not display any test indicators in non-dev server remote projects.
9091 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9092 })
9093 .unwrap_or(true);
9094 if hide_runnables {
9095 return;
9096 }
9097 let new_rows =
9098 cx.background_executor()
9099 .spawn({
9100 let snapshot = display_snapshot.clone();
9101 async move {
9102 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9103 }
9104 })
9105 .await;
9106 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9107
9108 this.update(&mut cx, |this, _| {
9109 this.clear_tasks();
9110 for (key, value) in rows {
9111 this.insert_tasks(key, value);
9112 }
9113 })
9114 .ok();
9115 })
9116 }
9117 fn fetch_runnable_ranges(
9118 snapshot: &DisplaySnapshot,
9119 range: Range<Anchor>,
9120 ) -> Vec<language::RunnableRange> {
9121 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9122 }
9123
9124 fn runnable_rows(
9125 project: Model<Project>,
9126 snapshot: DisplaySnapshot,
9127 runnable_ranges: Vec<RunnableRange>,
9128 mut cx: AsyncWindowContext,
9129 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9130 runnable_ranges
9131 .into_iter()
9132 .filter_map(|mut runnable| {
9133 let tasks = cx
9134 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9135 .ok()?;
9136 if tasks.is_empty() {
9137 return None;
9138 }
9139
9140 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9141
9142 let row = snapshot
9143 .buffer_snapshot
9144 .buffer_line_for_row(MultiBufferRow(point.row))?
9145 .1
9146 .start
9147 .row;
9148
9149 let context_range =
9150 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9151 Some((
9152 (runnable.buffer_id, row),
9153 RunnableTasks {
9154 templates: tasks,
9155 offset: MultiBufferOffset(runnable.run_range.start),
9156 context_range,
9157 column: point.column,
9158 extra_variables: runnable.extra_captures,
9159 },
9160 ))
9161 })
9162 .collect()
9163 }
9164
9165 fn templates_with_tags(
9166 project: &Model<Project>,
9167 runnable: &mut Runnable,
9168 cx: &WindowContext<'_>,
9169 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9170 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9171 let (worktree_id, file) = project
9172 .buffer_for_id(runnable.buffer, cx)
9173 .and_then(|buffer| buffer.read(cx).file())
9174 .map(|file| (file.worktree_id(cx), file.clone()))
9175 .unzip();
9176
9177 (
9178 project.task_store().read(cx).task_inventory().cloned(),
9179 worktree_id,
9180 file,
9181 )
9182 });
9183
9184 let tags = mem::take(&mut runnable.tags);
9185 let mut tags: Vec<_> = tags
9186 .into_iter()
9187 .flat_map(|tag| {
9188 let tag = tag.0.clone();
9189 inventory
9190 .as_ref()
9191 .into_iter()
9192 .flat_map(|inventory| {
9193 inventory.read(cx).list_tasks(
9194 file.clone(),
9195 Some(runnable.language.clone()),
9196 worktree_id,
9197 cx,
9198 )
9199 })
9200 .filter(move |(_, template)| {
9201 template.tags.iter().any(|source_tag| source_tag == &tag)
9202 })
9203 })
9204 .sorted_by_key(|(kind, _)| kind.to_owned())
9205 .collect();
9206 if let Some((leading_tag_source, _)) = tags.first() {
9207 // Strongest source wins; if we have worktree tag binding, prefer that to
9208 // global and language bindings;
9209 // if we have a global binding, prefer that to language binding.
9210 let first_mismatch = tags
9211 .iter()
9212 .position(|(tag_source, _)| tag_source != leading_tag_source);
9213 if let Some(index) = first_mismatch {
9214 tags.truncate(index);
9215 }
9216 }
9217
9218 tags
9219 }
9220
9221 pub fn move_to_enclosing_bracket(
9222 &mut self,
9223 _: &MoveToEnclosingBracket,
9224 cx: &mut ViewContext<Self>,
9225 ) {
9226 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9227 s.move_offsets_with(|snapshot, selection| {
9228 let Some(enclosing_bracket_ranges) =
9229 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9230 else {
9231 return;
9232 };
9233
9234 let mut best_length = usize::MAX;
9235 let mut best_inside = false;
9236 let mut best_in_bracket_range = false;
9237 let mut best_destination = None;
9238 for (open, close) in enclosing_bracket_ranges {
9239 let close = close.to_inclusive();
9240 let length = close.end() - open.start;
9241 let inside = selection.start >= open.end && selection.end <= *close.start();
9242 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9243 || close.contains(&selection.head());
9244
9245 // If best is next to a bracket and current isn't, skip
9246 if !in_bracket_range && best_in_bracket_range {
9247 continue;
9248 }
9249
9250 // Prefer smaller lengths unless best is inside and current isn't
9251 if length > best_length && (best_inside || !inside) {
9252 continue;
9253 }
9254
9255 best_length = length;
9256 best_inside = inside;
9257 best_in_bracket_range = in_bracket_range;
9258 best_destination = Some(
9259 if close.contains(&selection.start) && close.contains(&selection.end) {
9260 if inside {
9261 open.end
9262 } else {
9263 open.start
9264 }
9265 } else if inside {
9266 *close.start()
9267 } else {
9268 *close.end()
9269 },
9270 );
9271 }
9272
9273 if let Some(destination) = best_destination {
9274 selection.collapse_to(destination, SelectionGoal::None);
9275 }
9276 })
9277 });
9278 }
9279
9280 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9281 self.end_selection(cx);
9282 self.selection_history.mode = SelectionHistoryMode::Undoing;
9283 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9284 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9285 self.select_next_state = entry.select_next_state;
9286 self.select_prev_state = entry.select_prev_state;
9287 self.add_selections_state = entry.add_selections_state;
9288 self.request_autoscroll(Autoscroll::newest(), cx);
9289 }
9290 self.selection_history.mode = SelectionHistoryMode::Normal;
9291 }
9292
9293 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9294 self.end_selection(cx);
9295 self.selection_history.mode = SelectionHistoryMode::Redoing;
9296 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9297 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9298 self.select_next_state = entry.select_next_state;
9299 self.select_prev_state = entry.select_prev_state;
9300 self.add_selections_state = entry.add_selections_state;
9301 self.request_autoscroll(Autoscroll::newest(), cx);
9302 }
9303 self.selection_history.mode = SelectionHistoryMode::Normal;
9304 }
9305
9306 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9307 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9308 }
9309
9310 pub fn expand_excerpts_down(
9311 &mut self,
9312 action: &ExpandExcerptsDown,
9313 cx: &mut ViewContext<Self>,
9314 ) {
9315 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9316 }
9317
9318 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9319 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9320 }
9321
9322 pub fn expand_excerpts_for_direction(
9323 &mut self,
9324 lines: u32,
9325 direction: ExpandExcerptDirection,
9326 cx: &mut ViewContext<Self>,
9327 ) {
9328 let selections = self.selections.disjoint_anchors();
9329
9330 let lines = if lines == 0 {
9331 EditorSettings::get_global(cx).expand_excerpt_lines
9332 } else {
9333 lines
9334 };
9335
9336 self.buffer.update(cx, |buffer, cx| {
9337 buffer.expand_excerpts(
9338 selections
9339 .iter()
9340 .map(|selection| selection.head().excerpt_id)
9341 .dedup(),
9342 lines,
9343 direction,
9344 cx,
9345 )
9346 })
9347 }
9348
9349 pub fn expand_excerpt(
9350 &mut self,
9351 excerpt: ExcerptId,
9352 direction: ExpandExcerptDirection,
9353 cx: &mut ViewContext<Self>,
9354 ) {
9355 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9356 self.buffer.update(cx, |buffer, cx| {
9357 buffer.expand_excerpts([excerpt], lines, direction, cx)
9358 })
9359 }
9360
9361 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9362 self.go_to_diagnostic_impl(Direction::Next, cx)
9363 }
9364
9365 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9366 self.go_to_diagnostic_impl(Direction::Prev, cx)
9367 }
9368
9369 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9370 let buffer = self.buffer.read(cx).snapshot(cx);
9371 let selection = self.selections.newest::<usize>(cx);
9372
9373 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9374 if direction == Direction::Next {
9375 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9376 let (group_id, jump_to) = popover.activation_info();
9377 if self.activate_diagnostics(group_id, cx) {
9378 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9379 let mut new_selection = s.newest_anchor().clone();
9380 new_selection.collapse_to(jump_to, SelectionGoal::None);
9381 s.select_anchors(vec![new_selection.clone()]);
9382 });
9383 }
9384 return;
9385 }
9386 }
9387
9388 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9389 active_diagnostics
9390 .primary_range
9391 .to_offset(&buffer)
9392 .to_inclusive()
9393 });
9394 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9395 if active_primary_range.contains(&selection.head()) {
9396 *active_primary_range.start()
9397 } else {
9398 selection.head()
9399 }
9400 } else {
9401 selection.head()
9402 };
9403 let snapshot = self.snapshot(cx);
9404 loop {
9405 let diagnostics = if direction == Direction::Prev {
9406 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9407 } else {
9408 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9409 }
9410 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9411 let group = diagnostics
9412 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9413 // be sorted in a stable way
9414 // skip until we are at current active diagnostic, if it exists
9415 .skip_while(|entry| {
9416 (match direction {
9417 Direction::Prev => entry.range.start >= search_start,
9418 Direction::Next => entry.range.start <= search_start,
9419 }) && self
9420 .active_diagnostics
9421 .as_ref()
9422 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9423 })
9424 .find_map(|entry| {
9425 if entry.diagnostic.is_primary
9426 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9427 && !entry.range.is_empty()
9428 // if we match with the active diagnostic, skip it
9429 && Some(entry.diagnostic.group_id)
9430 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9431 {
9432 Some((entry.range, entry.diagnostic.group_id))
9433 } else {
9434 None
9435 }
9436 });
9437
9438 if let Some((primary_range, group_id)) = group {
9439 if self.activate_diagnostics(group_id, cx) {
9440 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9441 s.select(vec![Selection {
9442 id: selection.id,
9443 start: primary_range.start,
9444 end: primary_range.start,
9445 reversed: false,
9446 goal: SelectionGoal::None,
9447 }]);
9448 });
9449 }
9450 break;
9451 } else {
9452 // Cycle around to the start of the buffer, potentially moving back to the start of
9453 // the currently active diagnostic.
9454 active_primary_range.take();
9455 if direction == Direction::Prev {
9456 if search_start == buffer.len() {
9457 break;
9458 } else {
9459 search_start = buffer.len();
9460 }
9461 } else if search_start == 0 {
9462 break;
9463 } else {
9464 search_start = 0;
9465 }
9466 }
9467 }
9468 }
9469
9470 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9471 let snapshot = self
9472 .display_map
9473 .update(cx, |display_map, cx| display_map.snapshot(cx));
9474 let selection = self.selections.newest::<Point>(cx);
9475 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9476 }
9477
9478 fn go_to_hunk_after_position(
9479 &mut self,
9480 snapshot: &DisplaySnapshot,
9481 position: Point,
9482 cx: &mut ViewContext<'_, Editor>,
9483 ) -> Option<MultiBufferDiffHunk> {
9484 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9485 snapshot,
9486 position,
9487 false,
9488 snapshot
9489 .buffer_snapshot
9490 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9491 cx,
9492 ) {
9493 return Some(hunk);
9494 }
9495
9496 let wrapped_point = Point::zero();
9497 self.go_to_next_hunk_in_direction(
9498 snapshot,
9499 wrapped_point,
9500 true,
9501 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9502 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9503 ),
9504 cx,
9505 )
9506 }
9507
9508 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9509 let snapshot = self
9510 .display_map
9511 .update(cx, |display_map, cx| display_map.snapshot(cx));
9512 let selection = self.selections.newest::<Point>(cx);
9513
9514 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9515 }
9516
9517 fn go_to_hunk_before_position(
9518 &mut self,
9519 snapshot: &DisplaySnapshot,
9520 position: Point,
9521 cx: &mut ViewContext<'_, Editor>,
9522 ) -> Option<MultiBufferDiffHunk> {
9523 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9524 snapshot,
9525 position,
9526 false,
9527 snapshot
9528 .buffer_snapshot
9529 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9530 cx,
9531 ) {
9532 return Some(hunk);
9533 }
9534
9535 let wrapped_point = snapshot.buffer_snapshot.max_point();
9536 self.go_to_next_hunk_in_direction(
9537 snapshot,
9538 wrapped_point,
9539 true,
9540 snapshot
9541 .buffer_snapshot
9542 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9543 cx,
9544 )
9545 }
9546
9547 fn go_to_next_hunk_in_direction(
9548 &mut self,
9549 snapshot: &DisplaySnapshot,
9550 initial_point: Point,
9551 is_wrapped: bool,
9552 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9553 cx: &mut ViewContext<Editor>,
9554 ) -> Option<MultiBufferDiffHunk> {
9555 let display_point = initial_point.to_display_point(snapshot);
9556 let mut hunks = hunks
9557 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9558 .filter(|(display_hunk, _)| {
9559 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9560 })
9561 .dedup();
9562
9563 if let Some((display_hunk, hunk)) = hunks.next() {
9564 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9565 let row = display_hunk.start_display_row();
9566 let point = DisplayPoint::new(row, 0);
9567 s.select_display_ranges([point..point]);
9568 });
9569
9570 Some(hunk)
9571 } else {
9572 None
9573 }
9574 }
9575
9576 pub fn go_to_definition(
9577 &mut self,
9578 _: &GoToDefinition,
9579 cx: &mut ViewContext<Self>,
9580 ) -> Task<Result<Navigated>> {
9581 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9582 cx.spawn(|editor, mut cx| async move {
9583 if definition.await? == Navigated::Yes {
9584 return Ok(Navigated::Yes);
9585 }
9586 match editor.update(&mut cx, |editor, cx| {
9587 editor.find_all_references(&FindAllReferences, cx)
9588 })? {
9589 Some(references) => references.await,
9590 None => Ok(Navigated::No),
9591 }
9592 })
9593 }
9594
9595 pub fn go_to_declaration(
9596 &mut self,
9597 _: &GoToDeclaration,
9598 cx: &mut ViewContext<Self>,
9599 ) -> Task<Result<Navigated>> {
9600 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9601 }
9602
9603 pub fn go_to_declaration_split(
9604 &mut self,
9605 _: &GoToDeclaration,
9606 cx: &mut ViewContext<Self>,
9607 ) -> Task<Result<Navigated>> {
9608 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9609 }
9610
9611 pub fn go_to_implementation(
9612 &mut self,
9613 _: &GoToImplementation,
9614 cx: &mut ViewContext<Self>,
9615 ) -> Task<Result<Navigated>> {
9616 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9617 }
9618
9619 pub fn go_to_implementation_split(
9620 &mut self,
9621 _: &GoToImplementationSplit,
9622 cx: &mut ViewContext<Self>,
9623 ) -> Task<Result<Navigated>> {
9624 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9625 }
9626
9627 pub fn go_to_type_definition(
9628 &mut self,
9629 _: &GoToTypeDefinition,
9630 cx: &mut ViewContext<Self>,
9631 ) -> Task<Result<Navigated>> {
9632 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9633 }
9634
9635 pub fn go_to_definition_split(
9636 &mut self,
9637 _: &GoToDefinitionSplit,
9638 cx: &mut ViewContext<Self>,
9639 ) -> Task<Result<Navigated>> {
9640 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9641 }
9642
9643 pub fn go_to_type_definition_split(
9644 &mut self,
9645 _: &GoToTypeDefinitionSplit,
9646 cx: &mut ViewContext<Self>,
9647 ) -> Task<Result<Navigated>> {
9648 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9649 }
9650
9651 fn go_to_definition_of_kind(
9652 &mut self,
9653 kind: GotoDefinitionKind,
9654 split: bool,
9655 cx: &mut ViewContext<Self>,
9656 ) -> Task<Result<Navigated>> {
9657 let Some(provider) = self.semantics_provider.clone() else {
9658 return Task::ready(Ok(Navigated::No));
9659 };
9660 let buffer = self.buffer.read(cx);
9661 let head = self.selections.newest::<usize>(cx).head();
9662 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9663 text_anchor
9664 } else {
9665 return Task::ready(Ok(Navigated::No));
9666 };
9667
9668 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9669 return Task::ready(Ok(Navigated::No));
9670 };
9671
9672 cx.spawn(|editor, mut cx| async move {
9673 let definitions = definitions.await?;
9674 let navigated = editor
9675 .update(&mut cx, |editor, cx| {
9676 editor.navigate_to_hover_links(
9677 Some(kind),
9678 definitions
9679 .into_iter()
9680 .filter(|location| {
9681 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9682 })
9683 .map(HoverLink::Text)
9684 .collect::<Vec<_>>(),
9685 split,
9686 cx,
9687 )
9688 })?
9689 .await?;
9690 anyhow::Ok(navigated)
9691 })
9692 }
9693
9694 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9695 let position = self.selections.newest_anchor().head();
9696 let Some((buffer, buffer_position)) =
9697 self.buffer.read(cx).text_anchor_for_position(position, cx)
9698 else {
9699 return;
9700 };
9701
9702 cx.spawn(|editor, mut cx| async move {
9703 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9704 editor.update(&mut cx, |_, cx| {
9705 cx.open_url(&url);
9706 })
9707 } else {
9708 Ok(())
9709 }
9710 })
9711 .detach();
9712 }
9713
9714 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9715 let Some(workspace) = self.workspace() else {
9716 return;
9717 };
9718
9719 let position = self.selections.newest_anchor().head();
9720
9721 let Some((buffer, buffer_position)) =
9722 self.buffer.read(cx).text_anchor_for_position(position, cx)
9723 else {
9724 return;
9725 };
9726
9727 let project = self.project.clone();
9728
9729 cx.spawn(|_, mut cx| async move {
9730 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9731
9732 if let Some((_, path)) = result {
9733 workspace
9734 .update(&mut cx, |workspace, cx| {
9735 workspace.open_resolved_path(path, cx)
9736 })?
9737 .await?;
9738 }
9739 anyhow::Ok(())
9740 })
9741 .detach();
9742 }
9743
9744 pub(crate) fn navigate_to_hover_links(
9745 &mut self,
9746 kind: Option<GotoDefinitionKind>,
9747 mut definitions: Vec<HoverLink>,
9748 split: bool,
9749 cx: &mut ViewContext<Editor>,
9750 ) -> Task<Result<Navigated>> {
9751 // If there is one definition, just open it directly
9752 if definitions.len() == 1 {
9753 let definition = definitions.pop().unwrap();
9754
9755 enum TargetTaskResult {
9756 Location(Option<Location>),
9757 AlreadyNavigated,
9758 }
9759
9760 let target_task = match definition {
9761 HoverLink::Text(link) => {
9762 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9763 }
9764 HoverLink::InlayHint(lsp_location, server_id) => {
9765 let computation = self.compute_target_location(lsp_location, server_id, cx);
9766 cx.background_executor().spawn(async move {
9767 let location = computation.await?;
9768 Ok(TargetTaskResult::Location(location))
9769 })
9770 }
9771 HoverLink::Url(url) => {
9772 cx.open_url(&url);
9773 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9774 }
9775 HoverLink::File(path) => {
9776 if let Some(workspace) = self.workspace() {
9777 cx.spawn(|_, mut cx| async move {
9778 workspace
9779 .update(&mut cx, |workspace, cx| {
9780 workspace.open_resolved_path(path, cx)
9781 })?
9782 .await
9783 .map(|_| TargetTaskResult::AlreadyNavigated)
9784 })
9785 } else {
9786 Task::ready(Ok(TargetTaskResult::Location(None)))
9787 }
9788 }
9789 };
9790 cx.spawn(|editor, mut cx| async move {
9791 let target = match target_task.await.context("target resolution task")? {
9792 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9793 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9794 TargetTaskResult::Location(Some(target)) => target,
9795 };
9796
9797 editor.update(&mut cx, |editor, cx| {
9798 let Some(workspace) = editor.workspace() else {
9799 return Navigated::No;
9800 };
9801 let pane = workspace.read(cx).active_pane().clone();
9802
9803 let range = target.range.to_offset(target.buffer.read(cx));
9804 let range = editor.range_for_match(&range);
9805
9806 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9807 let buffer = target.buffer.read(cx);
9808 let range = check_multiline_range(buffer, range);
9809 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9810 s.select_ranges([range]);
9811 });
9812 } else {
9813 cx.window_context().defer(move |cx| {
9814 let target_editor: View<Self> =
9815 workspace.update(cx, |workspace, cx| {
9816 let pane = if split {
9817 workspace.adjacent_pane(cx)
9818 } else {
9819 workspace.active_pane().clone()
9820 };
9821
9822 workspace.open_project_item(
9823 pane,
9824 target.buffer.clone(),
9825 true,
9826 true,
9827 cx,
9828 )
9829 });
9830 target_editor.update(cx, |target_editor, cx| {
9831 // When selecting a definition in a different buffer, disable the nav history
9832 // to avoid creating a history entry at the previous cursor location.
9833 pane.update(cx, |pane, _| pane.disable_history());
9834 let buffer = target.buffer.read(cx);
9835 let range = check_multiline_range(buffer, range);
9836 target_editor.change_selections(
9837 Some(Autoscroll::focused()),
9838 cx,
9839 |s| {
9840 s.select_ranges([range]);
9841 },
9842 );
9843 pane.update(cx, |pane, _| pane.enable_history());
9844 });
9845 });
9846 }
9847 Navigated::Yes
9848 })
9849 })
9850 } else if !definitions.is_empty() {
9851 cx.spawn(|editor, mut cx| async move {
9852 let (title, location_tasks, workspace) = editor
9853 .update(&mut cx, |editor, cx| {
9854 let tab_kind = match kind {
9855 Some(GotoDefinitionKind::Implementation) => "Implementations",
9856 _ => "Definitions",
9857 };
9858 let title = definitions
9859 .iter()
9860 .find_map(|definition| match definition {
9861 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9862 let buffer = origin.buffer.read(cx);
9863 format!(
9864 "{} for {}",
9865 tab_kind,
9866 buffer
9867 .text_for_range(origin.range.clone())
9868 .collect::<String>()
9869 )
9870 }),
9871 HoverLink::InlayHint(_, _) => None,
9872 HoverLink::Url(_) => None,
9873 HoverLink::File(_) => None,
9874 })
9875 .unwrap_or(tab_kind.to_string());
9876 let location_tasks = definitions
9877 .into_iter()
9878 .map(|definition| match definition {
9879 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9880 HoverLink::InlayHint(lsp_location, server_id) => {
9881 editor.compute_target_location(lsp_location, server_id, cx)
9882 }
9883 HoverLink::Url(_) => Task::ready(Ok(None)),
9884 HoverLink::File(_) => Task::ready(Ok(None)),
9885 })
9886 .collect::<Vec<_>>();
9887 (title, location_tasks, editor.workspace().clone())
9888 })
9889 .context("location tasks preparation")?;
9890
9891 let locations = future::join_all(location_tasks)
9892 .await
9893 .into_iter()
9894 .filter_map(|location| location.transpose())
9895 .collect::<Result<_>>()
9896 .context("location tasks")?;
9897
9898 let Some(workspace) = workspace else {
9899 return Ok(Navigated::No);
9900 };
9901 let opened = workspace
9902 .update(&mut cx, |workspace, cx| {
9903 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9904 })
9905 .ok();
9906
9907 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9908 })
9909 } else {
9910 Task::ready(Ok(Navigated::No))
9911 }
9912 }
9913
9914 fn compute_target_location(
9915 &self,
9916 lsp_location: lsp::Location,
9917 server_id: LanguageServerId,
9918 cx: &mut ViewContext<Editor>,
9919 ) -> Task<anyhow::Result<Option<Location>>> {
9920 let Some(project) = self.project.clone() else {
9921 return Task::Ready(Some(Ok(None)));
9922 };
9923
9924 cx.spawn(move |editor, mut cx| async move {
9925 let location_task = editor.update(&mut cx, |editor, cx| {
9926 project.update(cx, |project, cx| {
9927 let language_server_name =
9928 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
9929 project
9930 .language_server_for_buffer(buffer.read(cx), server_id, cx)
9931 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
9932 });
9933 language_server_name.map(|language_server_name| {
9934 project.open_local_buffer_via_lsp(
9935 lsp_location.uri.clone(),
9936 server_id,
9937 language_server_name,
9938 cx,
9939 )
9940 })
9941 })
9942 })?;
9943 let location = match location_task {
9944 Some(task) => Some({
9945 let target_buffer_handle = task.await.context("open local buffer")?;
9946 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9947 let target_start = target_buffer
9948 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9949 let target_end = target_buffer
9950 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9951 target_buffer.anchor_after(target_start)
9952 ..target_buffer.anchor_before(target_end)
9953 })?;
9954 Location {
9955 buffer: target_buffer_handle,
9956 range,
9957 }
9958 }),
9959 None => None,
9960 };
9961 Ok(location)
9962 })
9963 }
9964
9965 pub fn find_all_references(
9966 &mut self,
9967 _: &FindAllReferences,
9968 cx: &mut ViewContext<Self>,
9969 ) -> Option<Task<Result<Navigated>>> {
9970 let multi_buffer = self.buffer.read(cx);
9971 let selection = self.selections.newest::<usize>(cx);
9972 let head = selection.head();
9973
9974 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9975 let head_anchor = multi_buffer_snapshot.anchor_at(
9976 head,
9977 if head < selection.tail() {
9978 Bias::Right
9979 } else {
9980 Bias::Left
9981 },
9982 );
9983
9984 match self
9985 .find_all_references_task_sources
9986 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9987 {
9988 Ok(_) => {
9989 log::info!(
9990 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9991 );
9992 return None;
9993 }
9994 Err(i) => {
9995 self.find_all_references_task_sources.insert(i, head_anchor);
9996 }
9997 }
9998
9999 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
10000 let workspace = self.workspace()?;
10001 let project = workspace.read(cx).project().clone();
10002 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
10003 Some(cx.spawn(|editor, mut cx| async move {
10004 let _cleanup = defer({
10005 let mut cx = cx.clone();
10006 move || {
10007 let _ = editor.update(&mut cx, |editor, _| {
10008 if let Ok(i) =
10009 editor
10010 .find_all_references_task_sources
10011 .binary_search_by(|anchor| {
10012 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
10013 })
10014 {
10015 editor.find_all_references_task_sources.remove(i);
10016 }
10017 });
10018 }
10019 });
10020
10021 let locations = references.await?;
10022 if locations.is_empty() {
10023 return anyhow::Ok(Navigated::No);
10024 }
10025
10026 workspace.update(&mut cx, |workspace, cx| {
10027 let title = locations
10028 .first()
10029 .as_ref()
10030 .map(|location| {
10031 let buffer = location.buffer.read(cx);
10032 format!(
10033 "References to `{}`",
10034 buffer
10035 .text_for_range(location.range.clone())
10036 .collect::<String>()
10037 )
10038 })
10039 .unwrap();
10040 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10041 Navigated::Yes
10042 })
10043 }))
10044 }
10045
10046 /// Opens a multibuffer with the given project locations in it
10047 pub fn open_locations_in_multibuffer(
10048 workspace: &mut Workspace,
10049 mut locations: Vec<Location>,
10050 title: String,
10051 split: bool,
10052 cx: &mut ViewContext<Workspace>,
10053 ) {
10054 // If there are multiple definitions, open them in a multibuffer
10055 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10056 let mut locations = locations.into_iter().peekable();
10057 let mut ranges_to_highlight = Vec::new();
10058 let capability = workspace.project().read(cx).capability();
10059
10060 let excerpt_buffer = cx.new_model(|cx| {
10061 let mut multibuffer = MultiBuffer::new(capability);
10062 while let Some(location) = locations.next() {
10063 let buffer = location.buffer.read(cx);
10064 let mut ranges_for_buffer = Vec::new();
10065 let range = location.range.to_offset(buffer);
10066 ranges_for_buffer.push(range.clone());
10067
10068 while let Some(next_location) = locations.peek() {
10069 if next_location.buffer == location.buffer {
10070 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10071 locations.next();
10072 } else {
10073 break;
10074 }
10075 }
10076
10077 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10078 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10079 location.buffer.clone(),
10080 ranges_for_buffer,
10081 DEFAULT_MULTIBUFFER_CONTEXT,
10082 cx,
10083 ))
10084 }
10085
10086 multibuffer.with_title(title)
10087 });
10088
10089 let editor = cx.new_view(|cx| {
10090 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10091 });
10092 editor.update(cx, |editor, cx| {
10093 if let Some(first_range) = ranges_to_highlight.first() {
10094 editor.change_selections(None, cx, |selections| {
10095 selections.clear_disjoint();
10096 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10097 });
10098 }
10099 editor.highlight_background::<Self>(
10100 &ranges_to_highlight,
10101 |theme| theme.editor_highlighted_line_background,
10102 cx,
10103 );
10104 });
10105
10106 let item = Box::new(editor);
10107 let item_id = item.item_id();
10108
10109 if split {
10110 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10111 } else {
10112 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10113 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10114 pane.close_current_preview_item(cx)
10115 } else {
10116 None
10117 }
10118 });
10119 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10120 }
10121 workspace.active_pane().update(cx, |pane, cx| {
10122 pane.set_preview_item_id(Some(item_id), cx);
10123 });
10124 }
10125
10126 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10127 use language::ToOffset as _;
10128
10129 let provider = self.semantics_provider.clone()?;
10130 let selection = self.selections.newest_anchor().clone();
10131 let (cursor_buffer, cursor_buffer_position) = self
10132 .buffer
10133 .read(cx)
10134 .text_anchor_for_position(selection.head(), cx)?;
10135 let (tail_buffer, cursor_buffer_position_end) = self
10136 .buffer
10137 .read(cx)
10138 .text_anchor_for_position(selection.tail(), cx)?;
10139 if tail_buffer != cursor_buffer {
10140 return None;
10141 }
10142
10143 let snapshot = cursor_buffer.read(cx).snapshot();
10144 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10145 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10146 let prepare_rename = provider
10147 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10148 .unwrap_or_else(|| Task::ready(Ok(None)));
10149 drop(snapshot);
10150
10151 Some(cx.spawn(|this, mut cx| async move {
10152 let rename_range = if let Some(range) = prepare_rename.await? {
10153 Some(range)
10154 } else {
10155 this.update(&mut cx, |this, cx| {
10156 let buffer = this.buffer.read(cx).snapshot(cx);
10157 let mut buffer_highlights = this
10158 .document_highlights_for_position(selection.head(), &buffer)
10159 .filter(|highlight| {
10160 highlight.start.excerpt_id == selection.head().excerpt_id
10161 && highlight.end.excerpt_id == selection.head().excerpt_id
10162 });
10163 buffer_highlights
10164 .next()
10165 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10166 })?
10167 };
10168 if let Some(rename_range) = rename_range {
10169 this.update(&mut cx, |this, cx| {
10170 let snapshot = cursor_buffer.read(cx).snapshot();
10171 let rename_buffer_range = rename_range.to_offset(&snapshot);
10172 let cursor_offset_in_rename_range =
10173 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10174 let cursor_offset_in_rename_range_end =
10175 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10176
10177 this.take_rename(false, cx);
10178 let buffer = this.buffer.read(cx).read(cx);
10179 let cursor_offset = selection.head().to_offset(&buffer);
10180 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10181 let rename_end = rename_start + rename_buffer_range.len();
10182 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10183 let mut old_highlight_id = None;
10184 let old_name: Arc<str> = buffer
10185 .chunks(rename_start..rename_end, true)
10186 .map(|chunk| {
10187 if old_highlight_id.is_none() {
10188 old_highlight_id = chunk.syntax_highlight_id;
10189 }
10190 chunk.text
10191 })
10192 .collect::<String>()
10193 .into();
10194
10195 drop(buffer);
10196
10197 // Position the selection in the rename editor so that it matches the current selection.
10198 this.show_local_selections = false;
10199 let rename_editor = cx.new_view(|cx| {
10200 let mut editor = Editor::single_line(cx);
10201 editor.buffer.update(cx, |buffer, cx| {
10202 buffer.edit([(0..0, old_name.clone())], None, cx)
10203 });
10204 let rename_selection_range = match cursor_offset_in_rename_range
10205 .cmp(&cursor_offset_in_rename_range_end)
10206 {
10207 Ordering::Equal => {
10208 editor.select_all(&SelectAll, cx);
10209 return editor;
10210 }
10211 Ordering::Less => {
10212 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10213 }
10214 Ordering::Greater => {
10215 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10216 }
10217 };
10218 if rename_selection_range.end > old_name.len() {
10219 editor.select_all(&SelectAll, cx);
10220 } else {
10221 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10222 s.select_ranges([rename_selection_range]);
10223 });
10224 }
10225 editor
10226 });
10227 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10228 if e == &EditorEvent::Focused {
10229 cx.emit(EditorEvent::FocusedIn)
10230 }
10231 })
10232 .detach();
10233
10234 let write_highlights =
10235 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10236 let read_highlights =
10237 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10238 let ranges = write_highlights
10239 .iter()
10240 .flat_map(|(_, ranges)| ranges.iter())
10241 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10242 .cloned()
10243 .collect();
10244
10245 this.highlight_text::<Rename>(
10246 ranges,
10247 HighlightStyle {
10248 fade_out: Some(0.6),
10249 ..Default::default()
10250 },
10251 cx,
10252 );
10253 let rename_focus_handle = rename_editor.focus_handle(cx);
10254 cx.focus(&rename_focus_handle);
10255 let block_id = this.insert_blocks(
10256 [BlockProperties {
10257 style: BlockStyle::Flex,
10258 position: range.start,
10259 height: 1,
10260 render: Box::new({
10261 let rename_editor = rename_editor.clone();
10262 move |cx: &mut BlockContext| {
10263 let mut text_style = cx.editor_style.text.clone();
10264 if let Some(highlight_style) = old_highlight_id
10265 .and_then(|h| h.style(&cx.editor_style.syntax))
10266 {
10267 text_style = text_style.highlight(highlight_style);
10268 }
10269 div()
10270 .pl(cx.anchor_x)
10271 .child(EditorElement::new(
10272 &rename_editor,
10273 EditorStyle {
10274 background: cx.theme().system().transparent,
10275 local_player: cx.editor_style.local_player,
10276 text: text_style,
10277 scrollbar_width: cx.editor_style.scrollbar_width,
10278 syntax: cx.editor_style.syntax.clone(),
10279 status: cx.editor_style.status.clone(),
10280 inlay_hints_style: HighlightStyle {
10281 font_weight: Some(FontWeight::BOLD),
10282 ..make_inlay_hints_style(cx)
10283 },
10284 suggestions_style: HighlightStyle {
10285 color: Some(cx.theme().status().predictive),
10286 ..HighlightStyle::default()
10287 },
10288 ..EditorStyle::default()
10289 },
10290 ))
10291 .into_any_element()
10292 }
10293 }),
10294 disposition: BlockDisposition::Below,
10295 priority: 0,
10296 }],
10297 Some(Autoscroll::fit()),
10298 cx,
10299 )[0];
10300 this.pending_rename = Some(RenameState {
10301 range,
10302 old_name,
10303 editor: rename_editor,
10304 block_id,
10305 });
10306 })?;
10307 }
10308
10309 Ok(())
10310 }))
10311 }
10312
10313 pub fn confirm_rename(
10314 &mut self,
10315 _: &ConfirmRename,
10316 cx: &mut ViewContext<Self>,
10317 ) -> Option<Task<Result<()>>> {
10318 let rename = self.take_rename(false, cx)?;
10319 let workspace = self.workspace()?.downgrade();
10320 let (buffer, start) = self
10321 .buffer
10322 .read(cx)
10323 .text_anchor_for_position(rename.range.start, cx)?;
10324 let (end_buffer, _) = self
10325 .buffer
10326 .read(cx)
10327 .text_anchor_for_position(rename.range.end, cx)?;
10328 if buffer != end_buffer {
10329 return None;
10330 }
10331
10332 let old_name = rename.old_name;
10333 let new_name = rename.editor.read(cx).text(cx);
10334
10335 let rename = self.semantics_provider.as_ref()?.perform_rename(
10336 &buffer,
10337 start,
10338 new_name.clone(),
10339 cx,
10340 )?;
10341
10342 Some(cx.spawn(|editor, mut cx| async move {
10343 let project_transaction = rename.await?;
10344 Self::open_project_transaction(
10345 &editor,
10346 workspace,
10347 project_transaction,
10348 format!("Rename: {} → {}", old_name, new_name),
10349 cx.clone(),
10350 )
10351 .await?;
10352
10353 editor.update(&mut cx, |editor, cx| {
10354 editor.refresh_document_highlights(cx);
10355 })?;
10356 Ok(())
10357 }))
10358 }
10359
10360 fn take_rename(
10361 &mut self,
10362 moving_cursor: bool,
10363 cx: &mut ViewContext<Self>,
10364 ) -> Option<RenameState> {
10365 let rename = self.pending_rename.take()?;
10366 if rename.editor.focus_handle(cx).is_focused(cx) {
10367 cx.focus(&self.focus_handle);
10368 }
10369
10370 self.remove_blocks(
10371 [rename.block_id].into_iter().collect(),
10372 Some(Autoscroll::fit()),
10373 cx,
10374 );
10375 self.clear_highlights::<Rename>(cx);
10376 self.show_local_selections = true;
10377
10378 if moving_cursor {
10379 let rename_editor = rename.editor.read(cx);
10380 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
10381
10382 // Update the selection to match the position of the selection inside
10383 // the rename editor.
10384 let snapshot = self.buffer.read(cx).read(cx);
10385 let rename_range = rename.range.to_offset(&snapshot);
10386 let cursor_in_editor = snapshot
10387 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10388 .min(rename_range.end);
10389 drop(snapshot);
10390
10391 self.change_selections(None, cx, |s| {
10392 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10393 });
10394 } else {
10395 self.refresh_document_highlights(cx);
10396 }
10397
10398 Some(rename)
10399 }
10400
10401 pub fn pending_rename(&self) -> Option<&RenameState> {
10402 self.pending_rename.as_ref()
10403 }
10404
10405 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10406 let project = match &self.project {
10407 Some(project) => project.clone(),
10408 None => return None,
10409 };
10410
10411 Some(self.perform_format(project, FormatTrigger::Manual, cx))
10412 }
10413
10414 fn perform_format(
10415 &mut self,
10416 project: Model<Project>,
10417 trigger: FormatTrigger,
10418 cx: &mut ViewContext<Self>,
10419 ) -> Task<Result<()>> {
10420 let buffer = self.buffer().clone();
10421 let mut buffers = buffer.read(cx).all_buffers();
10422 if trigger == FormatTrigger::Save {
10423 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10424 }
10425
10426 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10427 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
10428
10429 cx.spawn(|_, mut cx| async move {
10430 let transaction = futures::select_biased! {
10431 () = timeout => {
10432 log::warn!("timed out waiting for formatting");
10433 None
10434 }
10435 transaction = format.log_err().fuse() => transaction,
10436 };
10437
10438 buffer
10439 .update(&mut cx, |buffer, cx| {
10440 if let Some(transaction) = transaction {
10441 if !buffer.is_singleton() {
10442 buffer.push_transaction(&transaction.0, cx);
10443 }
10444 }
10445
10446 cx.notify();
10447 })
10448 .ok();
10449
10450 Ok(())
10451 })
10452 }
10453
10454 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10455 if let Some(project) = self.project.clone() {
10456 self.buffer.update(cx, |multi_buffer, cx| {
10457 project.update(cx, |project, cx| {
10458 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10459 });
10460 })
10461 }
10462 }
10463
10464 fn cancel_language_server_work(
10465 &mut self,
10466 _: &CancelLanguageServerWork,
10467 cx: &mut ViewContext<Self>,
10468 ) {
10469 if let Some(project) = self.project.clone() {
10470 self.buffer.update(cx, |multi_buffer, cx| {
10471 project.update(cx, |project, cx| {
10472 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10473 });
10474 })
10475 }
10476 }
10477
10478 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10479 cx.show_character_palette();
10480 }
10481
10482 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10483 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10484 let buffer = self.buffer.read(cx).snapshot(cx);
10485 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10486 let is_valid = buffer
10487 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10488 .any(|entry| {
10489 entry.diagnostic.is_primary
10490 && !entry.range.is_empty()
10491 && entry.range.start == primary_range_start
10492 && entry.diagnostic.message == active_diagnostics.primary_message
10493 });
10494
10495 if is_valid != active_diagnostics.is_valid {
10496 active_diagnostics.is_valid = is_valid;
10497 let mut new_styles = HashMap::default();
10498 for (block_id, diagnostic) in &active_diagnostics.blocks {
10499 new_styles.insert(
10500 *block_id,
10501 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10502 );
10503 }
10504 self.display_map.update(cx, |display_map, _cx| {
10505 display_map.replace_blocks(new_styles)
10506 });
10507 }
10508 }
10509 }
10510
10511 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10512 self.dismiss_diagnostics(cx);
10513 let snapshot = self.snapshot(cx);
10514 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10515 let buffer = self.buffer.read(cx).snapshot(cx);
10516
10517 let mut primary_range = None;
10518 let mut primary_message = None;
10519 let mut group_end = Point::zero();
10520 let diagnostic_group = buffer
10521 .diagnostic_group::<MultiBufferPoint>(group_id)
10522 .filter_map(|entry| {
10523 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10524 && (entry.range.start.row == entry.range.end.row
10525 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10526 {
10527 return None;
10528 }
10529 if entry.range.end > group_end {
10530 group_end = entry.range.end;
10531 }
10532 if entry.diagnostic.is_primary {
10533 primary_range = Some(entry.range.clone());
10534 primary_message = Some(entry.diagnostic.message.clone());
10535 }
10536 Some(entry)
10537 })
10538 .collect::<Vec<_>>();
10539 let primary_range = primary_range?;
10540 let primary_message = primary_message?;
10541 let primary_range =
10542 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10543
10544 let blocks = display_map
10545 .insert_blocks(
10546 diagnostic_group.iter().map(|entry| {
10547 let diagnostic = entry.diagnostic.clone();
10548 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10549 BlockProperties {
10550 style: BlockStyle::Fixed,
10551 position: buffer.anchor_after(entry.range.start),
10552 height: message_height,
10553 render: diagnostic_block_renderer(diagnostic, None, true, true),
10554 disposition: BlockDisposition::Below,
10555 priority: 0,
10556 }
10557 }),
10558 cx,
10559 )
10560 .into_iter()
10561 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10562 .collect();
10563
10564 Some(ActiveDiagnosticGroup {
10565 primary_range,
10566 primary_message,
10567 group_id,
10568 blocks,
10569 is_valid: true,
10570 })
10571 });
10572 self.active_diagnostics.is_some()
10573 }
10574
10575 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10576 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10577 self.display_map.update(cx, |display_map, cx| {
10578 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10579 });
10580 cx.notify();
10581 }
10582 }
10583
10584 pub fn set_selections_from_remote(
10585 &mut self,
10586 selections: Vec<Selection<Anchor>>,
10587 pending_selection: Option<Selection<Anchor>>,
10588 cx: &mut ViewContext<Self>,
10589 ) {
10590 let old_cursor_position = self.selections.newest_anchor().head();
10591 self.selections.change_with(cx, |s| {
10592 s.select_anchors(selections);
10593 if let Some(pending_selection) = pending_selection {
10594 s.set_pending(pending_selection, SelectMode::Character);
10595 } else {
10596 s.clear_pending();
10597 }
10598 });
10599 self.selections_did_change(false, &old_cursor_position, true, cx);
10600 }
10601
10602 fn push_to_selection_history(&mut self) {
10603 self.selection_history.push(SelectionHistoryEntry {
10604 selections: self.selections.disjoint_anchors(),
10605 select_next_state: self.select_next_state.clone(),
10606 select_prev_state: self.select_prev_state.clone(),
10607 add_selections_state: self.add_selections_state.clone(),
10608 });
10609 }
10610
10611 pub fn transact(
10612 &mut self,
10613 cx: &mut ViewContext<Self>,
10614 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10615 ) -> Option<TransactionId> {
10616 self.start_transaction_at(Instant::now(), cx);
10617 update(self, cx);
10618 self.end_transaction_at(Instant::now(), cx)
10619 }
10620
10621 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10622 self.end_selection(cx);
10623 if let Some(tx_id) = self
10624 .buffer
10625 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10626 {
10627 self.selection_history
10628 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10629 cx.emit(EditorEvent::TransactionBegun {
10630 transaction_id: tx_id,
10631 })
10632 }
10633 }
10634
10635 fn end_transaction_at(
10636 &mut self,
10637 now: Instant,
10638 cx: &mut ViewContext<Self>,
10639 ) -> Option<TransactionId> {
10640 if let Some(transaction_id) = self
10641 .buffer
10642 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10643 {
10644 if let Some((_, end_selections)) =
10645 self.selection_history.transaction_mut(transaction_id)
10646 {
10647 *end_selections = Some(self.selections.disjoint_anchors());
10648 } else {
10649 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10650 }
10651
10652 cx.emit(EditorEvent::Edited { transaction_id });
10653 Some(transaction_id)
10654 } else {
10655 None
10656 }
10657 }
10658
10659 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10660 let selection = self.selections.newest::<Point>(cx);
10661
10662 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10663 let range = if selection.is_empty() {
10664 let point = selection.head().to_display_point(&display_map);
10665 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10666 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10667 .to_point(&display_map);
10668 start..end
10669 } else {
10670 selection.range()
10671 };
10672 if display_map.folds_in_range(range).next().is_some() {
10673 self.unfold_lines(&Default::default(), cx)
10674 } else {
10675 self.fold(&Default::default(), cx)
10676 }
10677 }
10678
10679 pub fn toggle_fold_recursive(
10680 &mut self,
10681 _: &actions::ToggleFoldRecursive,
10682 cx: &mut ViewContext<Self>,
10683 ) {
10684 let selection = self.selections.newest::<Point>(cx);
10685
10686 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10687 let range = if selection.is_empty() {
10688 let point = selection.head().to_display_point(&display_map);
10689 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10690 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10691 .to_point(&display_map);
10692 start..end
10693 } else {
10694 selection.range()
10695 };
10696 if display_map.folds_in_range(range).next().is_some() {
10697 self.unfold_recursive(&Default::default(), cx)
10698 } else {
10699 self.fold_recursive(&Default::default(), cx)
10700 }
10701 }
10702
10703 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10704 let mut fold_ranges = Vec::new();
10705 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10706 let selections = self.selections.all_adjusted(cx);
10707
10708 for selection in selections {
10709 let range = selection.range().sorted();
10710 let buffer_start_row = range.start.row;
10711
10712 if range.start.row != range.end.row {
10713 let mut found = false;
10714 let mut row = range.start.row;
10715 while row <= range.end.row {
10716 if let Some((foldable_range, fold_text)) =
10717 { display_map.foldable_range(MultiBufferRow(row)) }
10718 {
10719 found = true;
10720 row = foldable_range.end.row + 1;
10721 fold_ranges.push((foldable_range, fold_text));
10722 } else {
10723 row += 1
10724 }
10725 }
10726 if found {
10727 continue;
10728 }
10729 }
10730
10731 for row in (0..=range.start.row).rev() {
10732 if let Some((foldable_range, fold_text)) =
10733 display_map.foldable_range(MultiBufferRow(row))
10734 {
10735 if foldable_range.end.row >= buffer_start_row {
10736 fold_ranges.push((foldable_range, fold_text));
10737 if row <= range.start.row {
10738 break;
10739 }
10740 }
10741 }
10742 }
10743 }
10744
10745 self.fold_ranges(fold_ranges, true, cx);
10746 }
10747
10748 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10749 let mut fold_ranges = Vec::new();
10750 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10751
10752 for row in 0..display_map.max_buffer_row().0 {
10753 if let Some((foldable_range, fold_text)) =
10754 display_map.foldable_range(MultiBufferRow(row))
10755 {
10756 fold_ranges.push((foldable_range, fold_text));
10757 }
10758 }
10759
10760 self.fold_ranges(fold_ranges, true, cx);
10761 }
10762
10763 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10764 let mut fold_ranges = Vec::new();
10765 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10766 let selections = self.selections.all_adjusted(cx);
10767
10768 for selection in selections {
10769 let range = selection.range().sorted();
10770 let buffer_start_row = range.start.row;
10771
10772 if range.start.row != range.end.row {
10773 let mut found = false;
10774 for row in range.start.row..=range.end.row {
10775 if let Some((foldable_range, fold_text)) =
10776 { display_map.foldable_range(MultiBufferRow(row)) }
10777 {
10778 found = true;
10779 fold_ranges.push((foldable_range, fold_text));
10780 }
10781 }
10782 if found {
10783 continue;
10784 }
10785 }
10786
10787 for row in (0..=range.start.row).rev() {
10788 if let Some((foldable_range, fold_text)) =
10789 display_map.foldable_range(MultiBufferRow(row))
10790 {
10791 if foldable_range.end.row >= buffer_start_row {
10792 fold_ranges.push((foldable_range, fold_text));
10793 } else {
10794 break;
10795 }
10796 }
10797 }
10798 }
10799
10800 self.fold_ranges(fold_ranges, true, cx);
10801 }
10802
10803 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10804 let buffer_row = fold_at.buffer_row;
10805 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10806
10807 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10808 let autoscroll = self
10809 .selections
10810 .all::<Point>(cx)
10811 .iter()
10812 .any(|selection| fold_range.overlaps(&selection.range()));
10813
10814 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10815 }
10816 }
10817
10818 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10819 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10820 let buffer = &display_map.buffer_snapshot;
10821 let selections = self.selections.all::<Point>(cx);
10822 let ranges = selections
10823 .iter()
10824 .map(|s| {
10825 let range = s.display_range(&display_map).sorted();
10826 let mut start = range.start.to_point(&display_map);
10827 let mut end = range.end.to_point(&display_map);
10828 start.column = 0;
10829 end.column = buffer.line_len(MultiBufferRow(end.row));
10830 start..end
10831 })
10832 .collect::<Vec<_>>();
10833
10834 self.unfold_ranges(ranges, true, true, cx);
10835 }
10836
10837 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10838 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10839 let selections = self.selections.all::<Point>(cx);
10840 let ranges = selections
10841 .iter()
10842 .map(|s| {
10843 let mut range = s.display_range(&display_map).sorted();
10844 *range.start.column_mut() = 0;
10845 *range.end.column_mut() = display_map.line_len(range.end.row());
10846 let start = range.start.to_point(&display_map);
10847 let end = range.end.to_point(&display_map);
10848 start..end
10849 })
10850 .collect::<Vec<_>>();
10851
10852 self.unfold_ranges(ranges, true, true, cx);
10853 }
10854
10855 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10856 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10857
10858 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10859 ..Point::new(
10860 unfold_at.buffer_row.0,
10861 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10862 );
10863
10864 let autoscroll = self
10865 .selections
10866 .all::<Point>(cx)
10867 .iter()
10868 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10869
10870 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
10871 }
10872
10873 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10874 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10875 self.unfold_ranges(
10876 [Point::zero()..display_map.max_point().to_point(&display_map)],
10877 true,
10878 true,
10879 cx,
10880 );
10881 }
10882
10883 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10884 let selections = self.selections.all::<Point>(cx);
10885 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10886 let line_mode = self.selections.line_mode;
10887 let ranges = selections.into_iter().map(|s| {
10888 if line_mode {
10889 let start = Point::new(s.start.row, 0);
10890 let end = Point::new(
10891 s.end.row,
10892 display_map
10893 .buffer_snapshot
10894 .line_len(MultiBufferRow(s.end.row)),
10895 );
10896 (start..end, display_map.fold_placeholder.clone())
10897 } else {
10898 (s.start..s.end, display_map.fold_placeholder.clone())
10899 }
10900 });
10901 self.fold_ranges(ranges, true, cx);
10902 }
10903
10904 pub fn fold_ranges<T: ToOffset + Clone>(
10905 &mut self,
10906 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
10907 auto_scroll: bool,
10908 cx: &mut ViewContext<Self>,
10909 ) {
10910 let mut fold_ranges = Vec::new();
10911 let mut buffers_affected = HashMap::default();
10912 let multi_buffer = self.buffer().read(cx);
10913 for (fold_range, fold_text) in ranges {
10914 if let Some((_, buffer, _)) =
10915 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
10916 {
10917 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10918 };
10919 fold_ranges.push((fold_range, fold_text));
10920 }
10921
10922 let mut ranges = fold_ranges.into_iter().peekable();
10923 if ranges.peek().is_some() {
10924 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10925
10926 if auto_scroll {
10927 self.request_autoscroll(Autoscroll::fit(), cx);
10928 }
10929
10930 for buffer in buffers_affected.into_values() {
10931 self.sync_expanded_diff_hunks(buffer, cx);
10932 }
10933
10934 cx.notify();
10935
10936 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10937 // Clear diagnostics block when folding a range that contains it.
10938 let snapshot = self.snapshot(cx);
10939 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10940 drop(snapshot);
10941 self.active_diagnostics = Some(active_diagnostics);
10942 self.dismiss_diagnostics(cx);
10943 } else {
10944 self.active_diagnostics = Some(active_diagnostics);
10945 }
10946 }
10947
10948 self.scrollbar_marker_state.dirty = true;
10949 }
10950 }
10951
10952 pub fn unfold_ranges<T: ToOffset + Clone>(
10953 &mut self,
10954 ranges: impl IntoIterator<Item = Range<T>>,
10955 inclusive: bool,
10956 auto_scroll: bool,
10957 cx: &mut ViewContext<Self>,
10958 ) {
10959 let mut unfold_ranges = Vec::new();
10960 let mut buffers_affected = HashMap::default();
10961 let multi_buffer = self.buffer().read(cx);
10962 for range in ranges {
10963 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10964 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10965 };
10966 unfold_ranges.push(range);
10967 }
10968
10969 let mut ranges = unfold_ranges.into_iter().peekable();
10970 if ranges.peek().is_some() {
10971 self.display_map
10972 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10973 if auto_scroll {
10974 self.request_autoscroll(Autoscroll::fit(), cx);
10975 }
10976
10977 for buffer in buffers_affected.into_values() {
10978 self.sync_expanded_diff_hunks(buffer, cx);
10979 }
10980
10981 cx.notify();
10982 self.scrollbar_marker_state.dirty = true;
10983 self.active_indent_guides_state.dirty = true;
10984 }
10985 }
10986
10987 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10988 self.display_map.read(cx).fold_placeholder.clone()
10989 }
10990
10991 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10992 if hovered != self.gutter_hovered {
10993 self.gutter_hovered = hovered;
10994 cx.notify();
10995 }
10996 }
10997
10998 pub fn insert_blocks(
10999 &mut self,
11000 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11001 autoscroll: Option<Autoscroll>,
11002 cx: &mut ViewContext<Self>,
11003 ) -> Vec<CustomBlockId> {
11004 let blocks = self
11005 .display_map
11006 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11007 if let Some(autoscroll) = autoscroll {
11008 self.request_autoscroll(autoscroll, cx);
11009 }
11010 cx.notify();
11011 blocks
11012 }
11013
11014 pub fn resize_blocks(
11015 &mut self,
11016 heights: HashMap<CustomBlockId, u32>,
11017 autoscroll: Option<Autoscroll>,
11018 cx: &mut ViewContext<Self>,
11019 ) {
11020 self.display_map
11021 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11022 if let Some(autoscroll) = autoscroll {
11023 self.request_autoscroll(autoscroll, cx);
11024 }
11025 cx.notify();
11026 }
11027
11028 pub fn replace_blocks(
11029 &mut self,
11030 renderers: HashMap<CustomBlockId, RenderBlock>,
11031 autoscroll: Option<Autoscroll>,
11032 cx: &mut ViewContext<Self>,
11033 ) {
11034 self.display_map
11035 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11036 if let Some(autoscroll) = autoscroll {
11037 self.request_autoscroll(autoscroll, cx);
11038 }
11039 cx.notify();
11040 }
11041
11042 pub fn remove_blocks(
11043 &mut self,
11044 block_ids: HashSet<CustomBlockId>,
11045 autoscroll: Option<Autoscroll>,
11046 cx: &mut ViewContext<Self>,
11047 ) {
11048 self.display_map.update(cx, |display_map, cx| {
11049 display_map.remove_blocks(block_ids, cx)
11050 });
11051 if let Some(autoscroll) = autoscroll {
11052 self.request_autoscroll(autoscroll, cx);
11053 }
11054 cx.notify();
11055 }
11056
11057 pub fn row_for_block(
11058 &self,
11059 block_id: CustomBlockId,
11060 cx: &mut ViewContext<Self>,
11061 ) -> Option<DisplayRow> {
11062 self.display_map
11063 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11064 }
11065
11066 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11067 self.focused_block = Some(focused_block);
11068 }
11069
11070 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11071 self.focused_block.take()
11072 }
11073
11074 pub fn insert_creases(
11075 &mut self,
11076 creases: impl IntoIterator<Item = Crease>,
11077 cx: &mut ViewContext<Self>,
11078 ) -> Vec<CreaseId> {
11079 self.display_map
11080 .update(cx, |map, cx| map.insert_creases(creases, cx))
11081 }
11082
11083 pub fn remove_creases(
11084 &mut self,
11085 ids: impl IntoIterator<Item = CreaseId>,
11086 cx: &mut ViewContext<Self>,
11087 ) {
11088 self.display_map
11089 .update(cx, |map, cx| map.remove_creases(ids, cx));
11090 }
11091
11092 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11093 self.display_map
11094 .update(cx, |map, cx| map.snapshot(cx))
11095 .longest_row()
11096 }
11097
11098 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11099 self.display_map
11100 .update(cx, |map, cx| map.snapshot(cx))
11101 .max_point()
11102 }
11103
11104 pub fn text(&self, cx: &AppContext) -> String {
11105 self.buffer.read(cx).read(cx).text()
11106 }
11107
11108 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11109 let text = self.text(cx);
11110 let text = text.trim();
11111
11112 if text.is_empty() {
11113 return None;
11114 }
11115
11116 Some(text.to_string())
11117 }
11118
11119 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11120 self.transact(cx, |this, cx| {
11121 this.buffer
11122 .read(cx)
11123 .as_singleton()
11124 .expect("you can only call set_text on editors for singleton buffers")
11125 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11126 });
11127 }
11128
11129 pub fn display_text(&self, cx: &mut AppContext) -> String {
11130 self.display_map
11131 .update(cx, |map, cx| map.snapshot(cx))
11132 .text()
11133 }
11134
11135 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11136 let mut wrap_guides = smallvec::smallvec![];
11137
11138 if self.show_wrap_guides == Some(false) {
11139 return wrap_guides;
11140 }
11141
11142 let settings = self.buffer.read(cx).settings_at(0, cx);
11143 if settings.show_wrap_guides {
11144 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11145 wrap_guides.push((soft_wrap as usize, true));
11146 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11147 wrap_guides.push((soft_wrap as usize, true));
11148 }
11149 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11150 }
11151
11152 wrap_guides
11153 }
11154
11155 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11156 let settings = self.buffer.read(cx).settings_at(0, cx);
11157 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11158 match mode {
11159 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11160 SoftWrap::None
11161 }
11162 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11163 language_settings::SoftWrap::PreferredLineLength => {
11164 SoftWrap::Column(settings.preferred_line_length)
11165 }
11166 language_settings::SoftWrap::Bounded => {
11167 SoftWrap::Bounded(settings.preferred_line_length)
11168 }
11169 }
11170 }
11171
11172 pub fn set_soft_wrap_mode(
11173 &mut self,
11174 mode: language_settings::SoftWrap,
11175 cx: &mut ViewContext<Self>,
11176 ) {
11177 self.soft_wrap_mode_override = Some(mode);
11178 cx.notify();
11179 }
11180
11181 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11182 let rem_size = cx.rem_size();
11183 self.display_map.update(cx, |map, cx| {
11184 map.set_font(
11185 style.text.font(),
11186 style.text.font_size.to_pixels(rem_size),
11187 cx,
11188 )
11189 });
11190 self.style = Some(style);
11191 }
11192
11193 pub fn style(&self) -> Option<&EditorStyle> {
11194 self.style.as_ref()
11195 }
11196
11197 // Called by the element. This method is not designed to be called outside of the editor
11198 // element's layout code because it does not notify when rewrapping is computed synchronously.
11199 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11200 self.display_map
11201 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11202 }
11203
11204 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11205 if self.soft_wrap_mode_override.is_some() {
11206 self.soft_wrap_mode_override.take();
11207 } else {
11208 let soft_wrap = match self.soft_wrap_mode(cx) {
11209 SoftWrap::GitDiff => return,
11210 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11211 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11212 language_settings::SoftWrap::None
11213 }
11214 };
11215 self.soft_wrap_mode_override = Some(soft_wrap);
11216 }
11217 cx.notify();
11218 }
11219
11220 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11221 let Some(workspace) = self.workspace() else {
11222 return;
11223 };
11224 let fs = workspace.read(cx).app_state().fs.clone();
11225 let current_show = TabBarSettings::get_global(cx).show;
11226 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11227 setting.show = Some(!current_show);
11228 });
11229 }
11230
11231 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11232 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11233 self.buffer
11234 .read(cx)
11235 .settings_at(0, cx)
11236 .indent_guides
11237 .enabled
11238 });
11239 self.show_indent_guides = Some(!currently_enabled);
11240 cx.notify();
11241 }
11242
11243 fn should_show_indent_guides(&self) -> Option<bool> {
11244 self.show_indent_guides
11245 }
11246
11247 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11248 let mut editor_settings = EditorSettings::get_global(cx).clone();
11249 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11250 EditorSettings::override_global(editor_settings, cx);
11251 }
11252
11253 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11254 self.use_relative_line_numbers
11255 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11256 }
11257
11258 pub fn toggle_relative_line_numbers(
11259 &mut self,
11260 _: &ToggleRelativeLineNumbers,
11261 cx: &mut ViewContext<Self>,
11262 ) {
11263 let is_relative = self.should_use_relative_line_numbers(cx);
11264 self.set_relative_line_number(Some(!is_relative), cx)
11265 }
11266
11267 pub fn set_relative_line_number(
11268 &mut self,
11269 is_relative: Option<bool>,
11270 cx: &mut ViewContext<Self>,
11271 ) {
11272 self.use_relative_line_numbers = is_relative;
11273 cx.notify();
11274 }
11275
11276 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11277 self.show_gutter = show_gutter;
11278 cx.notify();
11279 }
11280
11281 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11282 self.show_line_numbers = Some(show_line_numbers);
11283 cx.notify();
11284 }
11285
11286 pub fn set_show_git_diff_gutter(
11287 &mut self,
11288 show_git_diff_gutter: bool,
11289 cx: &mut ViewContext<Self>,
11290 ) {
11291 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11292 cx.notify();
11293 }
11294
11295 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11296 self.show_code_actions = Some(show_code_actions);
11297 cx.notify();
11298 }
11299
11300 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11301 self.show_runnables = Some(show_runnables);
11302 cx.notify();
11303 }
11304
11305 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11306 if self.display_map.read(cx).masked != masked {
11307 self.display_map.update(cx, |map, _| map.masked = masked);
11308 }
11309 cx.notify()
11310 }
11311
11312 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11313 self.show_wrap_guides = Some(show_wrap_guides);
11314 cx.notify();
11315 }
11316
11317 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11318 self.show_indent_guides = Some(show_indent_guides);
11319 cx.notify();
11320 }
11321
11322 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11323 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11324 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11325 if let Some(dir) = file.abs_path(cx).parent() {
11326 return Some(dir.to_owned());
11327 }
11328 }
11329
11330 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11331 return Some(project_path.path.to_path_buf());
11332 }
11333 }
11334
11335 None
11336 }
11337
11338 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11339 self.active_excerpt(cx)?
11340 .1
11341 .read(cx)
11342 .file()
11343 .and_then(|f| f.as_local())
11344 }
11345
11346 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11347 if let Some(target) = self.target_file(cx) {
11348 cx.reveal_path(&target.abs_path(cx));
11349 }
11350 }
11351
11352 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11353 if let Some(file) = self.target_file(cx) {
11354 if let Some(path) = file.abs_path(cx).to_str() {
11355 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11356 }
11357 }
11358 }
11359
11360 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11361 if let Some(file) = self.target_file(cx) {
11362 if let Some(path) = file.path().to_str() {
11363 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11364 }
11365 }
11366 }
11367
11368 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11369 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11370
11371 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11372 self.start_git_blame(true, cx);
11373 }
11374
11375 cx.notify();
11376 }
11377
11378 pub fn toggle_git_blame_inline(
11379 &mut self,
11380 _: &ToggleGitBlameInline,
11381 cx: &mut ViewContext<Self>,
11382 ) {
11383 self.toggle_git_blame_inline_internal(true, cx);
11384 cx.notify();
11385 }
11386
11387 pub fn git_blame_inline_enabled(&self) -> bool {
11388 self.git_blame_inline_enabled
11389 }
11390
11391 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11392 self.show_selection_menu = self
11393 .show_selection_menu
11394 .map(|show_selections_menu| !show_selections_menu)
11395 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11396
11397 cx.notify();
11398 }
11399
11400 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11401 self.show_selection_menu
11402 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11403 }
11404
11405 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11406 if let Some(project) = self.project.as_ref() {
11407 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11408 return;
11409 };
11410
11411 if buffer.read(cx).file().is_none() {
11412 return;
11413 }
11414
11415 let focused = self.focus_handle(cx).contains_focused(cx);
11416
11417 let project = project.clone();
11418 let blame =
11419 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11420 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11421 self.blame = Some(blame);
11422 }
11423 }
11424
11425 fn toggle_git_blame_inline_internal(
11426 &mut self,
11427 user_triggered: bool,
11428 cx: &mut ViewContext<Self>,
11429 ) {
11430 if self.git_blame_inline_enabled {
11431 self.git_blame_inline_enabled = false;
11432 self.show_git_blame_inline = false;
11433 self.show_git_blame_inline_delay_task.take();
11434 } else {
11435 self.git_blame_inline_enabled = true;
11436 self.start_git_blame_inline(user_triggered, cx);
11437 }
11438
11439 cx.notify();
11440 }
11441
11442 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11443 self.start_git_blame(user_triggered, cx);
11444
11445 if ProjectSettings::get_global(cx)
11446 .git
11447 .inline_blame_delay()
11448 .is_some()
11449 {
11450 self.start_inline_blame_timer(cx);
11451 } else {
11452 self.show_git_blame_inline = true
11453 }
11454 }
11455
11456 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11457 self.blame.as_ref()
11458 }
11459
11460 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11461 self.show_git_blame_gutter && self.has_blame_entries(cx)
11462 }
11463
11464 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11465 self.show_git_blame_inline
11466 && self.focus_handle.is_focused(cx)
11467 && !self.newest_selection_head_on_empty_line(cx)
11468 && self.has_blame_entries(cx)
11469 }
11470
11471 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11472 self.blame()
11473 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11474 }
11475
11476 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11477 let cursor_anchor = self.selections.newest_anchor().head();
11478
11479 let snapshot = self.buffer.read(cx).snapshot(cx);
11480 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11481
11482 snapshot.line_len(buffer_row) == 0
11483 }
11484
11485 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
11486 let (path, selection, repo) = maybe!({
11487 let project_handle = self.project.as_ref()?.clone();
11488 let project = project_handle.read(cx);
11489
11490 let selection = self.selections.newest::<Point>(cx);
11491 let selection_range = selection.range();
11492
11493 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11494 (buffer, selection_range.start.row..selection_range.end.row)
11495 } else {
11496 let buffer_ranges = self
11497 .buffer()
11498 .read(cx)
11499 .range_to_buffer_ranges(selection_range, cx);
11500
11501 let (buffer, range, _) = if selection.reversed {
11502 buffer_ranges.first()
11503 } else {
11504 buffer_ranges.last()
11505 }?;
11506
11507 let snapshot = buffer.read(cx).snapshot();
11508 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11509 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11510 (buffer.clone(), selection)
11511 };
11512
11513 let path = buffer
11514 .read(cx)
11515 .file()?
11516 .as_local()?
11517 .path()
11518 .to_str()?
11519 .to_string();
11520 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
11521 Some((path, selection, repo))
11522 })
11523 .ok_or_else(|| anyhow!("unable to open git repository"))?;
11524
11525 const REMOTE_NAME: &str = "origin";
11526 let origin_url = repo
11527 .remote_url(REMOTE_NAME)
11528 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
11529 let sha = repo
11530 .head_sha()
11531 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
11532
11533 let (provider, remote) =
11534 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
11535 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
11536
11537 Ok(provider.build_permalink(
11538 remote,
11539 BuildPermalinkParams {
11540 sha: &sha,
11541 path: &path,
11542 selection: Some(selection),
11543 },
11544 ))
11545 }
11546
11547 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11548 let permalink = self.get_permalink_to_line(cx);
11549
11550 match permalink {
11551 Ok(permalink) => {
11552 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11553 }
11554 Err(err) => {
11555 let message = format!("Failed to copy permalink: {err}");
11556
11557 Err::<(), anyhow::Error>(err).log_err();
11558
11559 if let Some(workspace) = self.workspace() {
11560 workspace.update(cx, |workspace, cx| {
11561 struct CopyPermalinkToLine;
11562
11563 workspace.show_toast(
11564 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
11565 cx,
11566 )
11567 })
11568 }
11569 }
11570 }
11571 }
11572
11573 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11574 if let Some(file) = self.target_file(cx) {
11575 if let Some(path) = file.path().to_str() {
11576 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11577 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11578 }
11579 }
11580 }
11581
11582 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11583 let permalink = self.get_permalink_to_line(cx);
11584
11585 match permalink {
11586 Ok(permalink) => {
11587 cx.open_url(permalink.as_ref());
11588 }
11589 Err(err) => {
11590 let message = format!("Failed to open permalink: {err}");
11591
11592 Err::<(), anyhow::Error>(err).log_err();
11593
11594 if let Some(workspace) = self.workspace() {
11595 workspace.update(cx, |workspace, cx| {
11596 struct OpenPermalinkToLine;
11597
11598 workspace.show_toast(
11599 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
11600 cx,
11601 )
11602 })
11603 }
11604 }
11605 }
11606 }
11607
11608 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11609 /// last highlight added will be used.
11610 ///
11611 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11612 pub fn highlight_rows<T: 'static>(
11613 &mut self,
11614 range: Range<Anchor>,
11615 color: Hsla,
11616 should_autoscroll: bool,
11617 cx: &mut ViewContext<Self>,
11618 ) {
11619 let snapshot = self.buffer().read(cx).snapshot(cx);
11620 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11621 let ix = row_highlights.binary_search_by(|highlight| {
11622 Ordering::Equal
11623 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11624 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11625 });
11626
11627 if let Err(mut ix) = ix {
11628 let index = post_inc(&mut self.highlight_order);
11629
11630 // If this range intersects with the preceding highlight, then merge it with
11631 // the preceding highlight. Otherwise insert a new highlight.
11632 let mut merged = false;
11633 if ix > 0 {
11634 let prev_highlight = &mut row_highlights[ix - 1];
11635 if prev_highlight
11636 .range
11637 .end
11638 .cmp(&range.start, &snapshot)
11639 .is_ge()
11640 {
11641 ix -= 1;
11642 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11643 prev_highlight.range.end = range.end;
11644 }
11645 merged = true;
11646 prev_highlight.index = index;
11647 prev_highlight.color = color;
11648 prev_highlight.should_autoscroll = should_autoscroll;
11649 }
11650 }
11651
11652 if !merged {
11653 row_highlights.insert(
11654 ix,
11655 RowHighlight {
11656 range: range.clone(),
11657 index,
11658 color,
11659 should_autoscroll,
11660 },
11661 );
11662 }
11663
11664 // If any of the following highlights intersect with this one, merge them.
11665 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11666 let highlight = &row_highlights[ix];
11667 if next_highlight
11668 .range
11669 .start
11670 .cmp(&highlight.range.end, &snapshot)
11671 .is_le()
11672 {
11673 if next_highlight
11674 .range
11675 .end
11676 .cmp(&highlight.range.end, &snapshot)
11677 .is_gt()
11678 {
11679 row_highlights[ix].range.end = next_highlight.range.end;
11680 }
11681 row_highlights.remove(ix + 1);
11682 } else {
11683 break;
11684 }
11685 }
11686 }
11687 }
11688
11689 /// Remove any highlighted row ranges of the given type that intersect the
11690 /// given ranges.
11691 pub fn remove_highlighted_rows<T: 'static>(
11692 &mut self,
11693 ranges_to_remove: Vec<Range<Anchor>>,
11694 cx: &mut ViewContext<Self>,
11695 ) {
11696 let snapshot = self.buffer().read(cx).snapshot(cx);
11697 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11698 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11699 row_highlights.retain(|highlight| {
11700 while let Some(range_to_remove) = ranges_to_remove.peek() {
11701 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11702 Ordering::Less | Ordering::Equal => {
11703 ranges_to_remove.next();
11704 }
11705 Ordering::Greater => {
11706 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11707 Ordering::Less | Ordering::Equal => {
11708 return false;
11709 }
11710 Ordering::Greater => break,
11711 }
11712 }
11713 }
11714 }
11715
11716 true
11717 })
11718 }
11719
11720 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11721 pub fn clear_row_highlights<T: 'static>(&mut self) {
11722 self.highlighted_rows.remove(&TypeId::of::<T>());
11723 }
11724
11725 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11726 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11727 self.highlighted_rows
11728 .get(&TypeId::of::<T>())
11729 .map_or(&[] as &[_], |vec| vec.as_slice())
11730 .iter()
11731 .map(|highlight| (highlight.range.clone(), highlight.color))
11732 }
11733
11734 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11735 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11736 /// Allows to ignore certain kinds of highlights.
11737 pub fn highlighted_display_rows(
11738 &mut self,
11739 cx: &mut WindowContext,
11740 ) -> BTreeMap<DisplayRow, Hsla> {
11741 let snapshot = self.snapshot(cx);
11742 let mut used_highlight_orders = HashMap::default();
11743 self.highlighted_rows
11744 .iter()
11745 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11746 .fold(
11747 BTreeMap::<DisplayRow, Hsla>::new(),
11748 |mut unique_rows, highlight| {
11749 let start = highlight.range.start.to_display_point(&snapshot);
11750 let end = highlight.range.end.to_display_point(&snapshot);
11751 let start_row = start.row().0;
11752 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11753 && end.column() == 0
11754 {
11755 end.row().0.saturating_sub(1)
11756 } else {
11757 end.row().0
11758 };
11759 for row in start_row..=end_row {
11760 let used_index =
11761 used_highlight_orders.entry(row).or_insert(highlight.index);
11762 if highlight.index >= *used_index {
11763 *used_index = highlight.index;
11764 unique_rows.insert(DisplayRow(row), highlight.color);
11765 }
11766 }
11767 unique_rows
11768 },
11769 )
11770 }
11771
11772 pub fn highlighted_display_row_for_autoscroll(
11773 &self,
11774 snapshot: &DisplaySnapshot,
11775 ) -> Option<DisplayRow> {
11776 self.highlighted_rows
11777 .values()
11778 .flat_map(|highlighted_rows| highlighted_rows.iter())
11779 .filter_map(|highlight| {
11780 if highlight.should_autoscroll {
11781 Some(highlight.range.start.to_display_point(snapshot).row())
11782 } else {
11783 None
11784 }
11785 })
11786 .min()
11787 }
11788
11789 pub fn set_search_within_ranges(
11790 &mut self,
11791 ranges: &[Range<Anchor>],
11792 cx: &mut ViewContext<Self>,
11793 ) {
11794 self.highlight_background::<SearchWithinRange>(
11795 ranges,
11796 |colors| colors.editor_document_highlight_read_background,
11797 cx,
11798 )
11799 }
11800
11801 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11802 self.breadcrumb_header = Some(new_header);
11803 }
11804
11805 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11806 self.clear_background_highlights::<SearchWithinRange>(cx);
11807 }
11808
11809 pub fn highlight_background<T: 'static>(
11810 &mut self,
11811 ranges: &[Range<Anchor>],
11812 color_fetcher: fn(&ThemeColors) -> Hsla,
11813 cx: &mut ViewContext<Self>,
11814 ) {
11815 self.background_highlights
11816 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11817 self.scrollbar_marker_state.dirty = true;
11818 cx.notify();
11819 }
11820
11821 pub fn clear_background_highlights<T: 'static>(
11822 &mut self,
11823 cx: &mut ViewContext<Self>,
11824 ) -> Option<BackgroundHighlight> {
11825 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11826 if !text_highlights.1.is_empty() {
11827 self.scrollbar_marker_state.dirty = true;
11828 cx.notify();
11829 }
11830 Some(text_highlights)
11831 }
11832
11833 pub fn highlight_gutter<T: 'static>(
11834 &mut self,
11835 ranges: &[Range<Anchor>],
11836 color_fetcher: fn(&AppContext) -> Hsla,
11837 cx: &mut ViewContext<Self>,
11838 ) {
11839 self.gutter_highlights
11840 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11841 cx.notify();
11842 }
11843
11844 pub fn clear_gutter_highlights<T: 'static>(
11845 &mut self,
11846 cx: &mut ViewContext<Self>,
11847 ) -> Option<GutterHighlight> {
11848 cx.notify();
11849 self.gutter_highlights.remove(&TypeId::of::<T>())
11850 }
11851
11852 #[cfg(feature = "test-support")]
11853 pub fn all_text_background_highlights(
11854 &mut self,
11855 cx: &mut ViewContext<Self>,
11856 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11857 let snapshot = self.snapshot(cx);
11858 let buffer = &snapshot.buffer_snapshot;
11859 let start = buffer.anchor_before(0);
11860 let end = buffer.anchor_after(buffer.len());
11861 let theme = cx.theme().colors();
11862 self.background_highlights_in_range(start..end, &snapshot, theme)
11863 }
11864
11865 #[cfg(feature = "test-support")]
11866 pub fn search_background_highlights(
11867 &mut self,
11868 cx: &mut ViewContext<Self>,
11869 ) -> Vec<Range<Point>> {
11870 let snapshot = self.buffer().read(cx).snapshot(cx);
11871
11872 let highlights = self
11873 .background_highlights
11874 .get(&TypeId::of::<items::BufferSearchHighlights>());
11875
11876 if let Some((_color, ranges)) = highlights {
11877 ranges
11878 .iter()
11879 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11880 .collect_vec()
11881 } else {
11882 vec![]
11883 }
11884 }
11885
11886 fn document_highlights_for_position<'a>(
11887 &'a self,
11888 position: Anchor,
11889 buffer: &'a MultiBufferSnapshot,
11890 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11891 let read_highlights = self
11892 .background_highlights
11893 .get(&TypeId::of::<DocumentHighlightRead>())
11894 .map(|h| &h.1);
11895 let write_highlights = self
11896 .background_highlights
11897 .get(&TypeId::of::<DocumentHighlightWrite>())
11898 .map(|h| &h.1);
11899 let left_position = position.bias_left(buffer);
11900 let right_position = position.bias_right(buffer);
11901 read_highlights
11902 .into_iter()
11903 .chain(write_highlights)
11904 .flat_map(move |ranges| {
11905 let start_ix = match ranges.binary_search_by(|probe| {
11906 let cmp = probe.end.cmp(&left_position, buffer);
11907 if cmp.is_ge() {
11908 Ordering::Greater
11909 } else {
11910 Ordering::Less
11911 }
11912 }) {
11913 Ok(i) | Err(i) => i,
11914 };
11915
11916 ranges[start_ix..]
11917 .iter()
11918 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11919 })
11920 }
11921
11922 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11923 self.background_highlights
11924 .get(&TypeId::of::<T>())
11925 .map_or(false, |(_, highlights)| !highlights.is_empty())
11926 }
11927
11928 pub fn background_highlights_in_range(
11929 &self,
11930 search_range: Range<Anchor>,
11931 display_snapshot: &DisplaySnapshot,
11932 theme: &ThemeColors,
11933 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11934 let mut results = Vec::new();
11935 for (color_fetcher, ranges) in self.background_highlights.values() {
11936 let color = color_fetcher(theme);
11937 let start_ix = match ranges.binary_search_by(|probe| {
11938 let cmp = probe
11939 .end
11940 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11941 if cmp.is_gt() {
11942 Ordering::Greater
11943 } else {
11944 Ordering::Less
11945 }
11946 }) {
11947 Ok(i) | Err(i) => i,
11948 };
11949 for range in &ranges[start_ix..] {
11950 if range
11951 .start
11952 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11953 .is_ge()
11954 {
11955 break;
11956 }
11957
11958 let start = range.start.to_display_point(display_snapshot);
11959 let end = range.end.to_display_point(display_snapshot);
11960 results.push((start..end, color))
11961 }
11962 }
11963 results
11964 }
11965
11966 pub fn background_highlight_row_ranges<T: 'static>(
11967 &self,
11968 search_range: Range<Anchor>,
11969 display_snapshot: &DisplaySnapshot,
11970 count: usize,
11971 ) -> Vec<RangeInclusive<DisplayPoint>> {
11972 let mut results = Vec::new();
11973 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11974 return vec![];
11975 };
11976
11977 let start_ix = match ranges.binary_search_by(|probe| {
11978 let cmp = probe
11979 .end
11980 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11981 if cmp.is_gt() {
11982 Ordering::Greater
11983 } else {
11984 Ordering::Less
11985 }
11986 }) {
11987 Ok(i) | Err(i) => i,
11988 };
11989 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11990 if let (Some(start_display), Some(end_display)) = (start, end) {
11991 results.push(
11992 start_display.to_display_point(display_snapshot)
11993 ..=end_display.to_display_point(display_snapshot),
11994 );
11995 }
11996 };
11997 let mut start_row: Option<Point> = None;
11998 let mut end_row: Option<Point> = None;
11999 if ranges.len() > count {
12000 return Vec::new();
12001 }
12002 for range in &ranges[start_ix..] {
12003 if range
12004 .start
12005 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12006 .is_ge()
12007 {
12008 break;
12009 }
12010 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12011 if let Some(current_row) = &end_row {
12012 if end.row == current_row.row {
12013 continue;
12014 }
12015 }
12016 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12017 if start_row.is_none() {
12018 assert_eq!(end_row, None);
12019 start_row = Some(start);
12020 end_row = Some(end);
12021 continue;
12022 }
12023 if let Some(current_end) = end_row.as_mut() {
12024 if start.row > current_end.row + 1 {
12025 push_region(start_row, end_row);
12026 start_row = Some(start);
12027 end_row = Some(end);
12028 } else {
12029 // Merge two hunks.
12030 *current_end = end;
12031 }
12032 } else {
12033 unreachable!();
12034 }
12035 }
12036 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12037 push_region(start_row, end_row);
12038 results
12039 }
12040
12041 pub fn gutter_highlights_in_range(
12042 &self,
12043 search_range: Range<Anchor>,
12044 display_snapshot: &DisplaySnapshot,
12045 cx: &AppContext,
12046 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12047 let mut results = Vec::new();
12048 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12049 let color = color_fetcher(cx);
12050 let start_ix = match ranges.binary_search_by(|probe| {
12051 let cmp = probe
12052 .end
12053 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12054 if cmp.is_gt() {
12055 Ordering::Greater
12056 } else {
12057 Ordering::Less
12058 }
12059 }) {
12060 Ok(i) | Err(i) => i,
12061 };
12062 for range in &ranges[start_ix..] {
12063 if range
12064 .start
12065 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12066 .is_ge()
12067 {
12068 break;
12069 }
12070
12071 let start = range.start.to_display_point(display_snapshot);
12072 let end = range.end.to_display_point(display_snapshot);
12073 results.push((start..end, color))
12074 }
12075 }
12076 results
12077 }
12078
12079 /// Get the text ranges corresponding to the redaction query
12080 pub fn redacted_ranges(
12081 &self,
12082 search_range: Range<Anchor>,
12083 display_snapshot: &DisplaySnapshot,
12084 cx: &WindowContext,
12085 ) -> Vec<Range<DisplayPoint>> {
12086 display_snapshot
12087 .buffer_snapshot
12088 .redacted_ranges(search_range, |file| {
12089 if let Some(file) = file {
12090 file.is_private()
12091 && EditorSettings::get(
12092 Some(SettingsLocation {
12093 worktree_id: file.worktree_id(cx),
12094 path: file.path().as_ref(),
12095 }),
12096 cx,
12097 )
12098 .redact_private_values
12099 } else {
12100 false
12101 }
12102 })
12103 .map(|range| {
12104 range.start.to_display_point(display_snapshot)
12105 ..range.end.to_display_point(display_snapshot)
12106 })
12107 .collect()
12108 }
12109
12110 pub fn highlight_text<T: 'static>(
12111 &mut self,
12112 ranges: Vec<Range<Anchor>>,
12113 style: HighlightStyle,
12114 cx: &mut ViewContext<Self>,
12115 ) {
12116 self.display_map.update(cx, |map, _| {
12117 map.highlight_text(TypeId::of::<T>(), ranges, style)
12118 });
12119 cx.notify();
12120 }
12121
12122 pub(crate) fn highlight_inlays<T: 'static>(
12123 &mut self,
12124 highlights: Vec<InlayHighlight>,
12125 style: HighlightStyle,
12126 cx: &mut ViewContext<Self>,
12127 ) {
12128 self.display_map.update(cx, |map, _| {
12129 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12130 });
12131 cx.notify();
12132 }
12133
12134 pub fn text_highlights<'a, T: 'static>(
12135 &'a self,
12136 cx: &'a AppContext,
12137 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12138 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12139 }
12140
12141 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12142 let cleared = self
12143 .display_map
12144 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12145 if cleared {
12146 cx.notify();
12147 }
12148 }
12149
12150 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12151 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12152 && self.focus_handle.is_focused(cx)
12153 }
12154
12155 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12156 self.show_cursor_when_unfocused = is_enabled;
12157 cx.notify();
12158 }
12159
12160 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12161 cx.notify();
12162 }
12163
12164 fn on_buffer_event(
12165 &mut self,
12166 multibuffer: Model<MultiBuffer>,
12167 event: &multi_buffer::Event,
12168 cx: &mut ViewContext<Self>,
12169 ) {
12170 match event {
12171 multi_buffer::Event::Edited {
12172 singleton_buffer_edited,
12173 } => {
12174 self.scrollbar_marker_state.dirty = true;
12175 self.active_indent_guides_state.dirty = true;
12176 self.refresh_active_diagnostics(cx);
12177 self.refresh_code_actions(cx);
12178 if self.has_active_inline_completion(cx) {
12179 self.update_visible_inline_completion(cx);
12180 }
12181 cx.emit(EditorEvent::BufferEdited);
12182 cx.emit(SearchEvent::MatchesInvalidated);
12183 if *singleton_buffer_edited {
12184 if let Some(project) = &self.project {
12185 let project = project.read(cx);
12186 #[allow(clippy::mutable_key_type)]
12187 let languages_affected = multibuffer
12188 .read(cx)
12189 .all_buffers()
12190 .into_iter()
12191 .filter_map(|buffer| {
12192 let buffer = buffer.read(cx);
12193 let language = buffer.language()?;
12194 if project.is_local()
12195 && project.language_servers_for_buffer(buffer, cx).count() == 0
12196 {
12197 None
12198 } else {
12199 Some(language)
12200 }
12201 })
12202 .cloned()
12203 .collect::<HashSet<_>>();
12204 if !languages_affected.is_empty() {
12205 self.refresh_inlay_hints(
12206 InlayHintRefreshReason::BufferEdited(languages_affected),
12207 cx,
12208 );
12209 }
12210 }
12211 }
12212
12213 let Some(project) = &self.project else { return };
12214 let (telemetry, is_via_ssh) = {
12215 let project = project.read(cx);
12216 let telemetry = project.client().telemetry().clone();
12217 let is_via_ssh = project.is_via_ssh();
12218 (telemetry, is_via_ssh)
12219 };
12220 refresh_linked_ranges(self, cx);
12221 telemetry.log_edit_event("editor", is_via_ssh);
12222 }
12223 multi_buffer::Event::ExcerptsAdded {
12224 buffer,
12225 predecessor,
12226 excerpts,
12227 } => {
12228 self.tasks_update_task = Some(self.refresh_runnables(cx));
12229 cx.emit(EditorEvent::ExcerptsAdded {
12230 buffer: buffer.clone(),
12231 predecessor: *predecessor,
12232 excerpts: excerpts.clone(),
12233 });
12234 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12235 }
12236 multi_buffer::Event::ExcerptsRemoved { ids } => {
12237 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12238 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12239 }
12240 multi_buffer::Event::ExcerptsEdited { ids } => {
12241 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12242 }
12243 multi_buffer::Event::ExcerptsExpanded { ids } => {
12244 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12245 }
12246 multi_buffer::Event::Reparsed(buffer_id) => {
12247 self.tasks_update_task = Some(self.refresh_runnables(cx));
12248
12249 cx.emit(EditorEvent::Reparsed(*buffer_id));
12250 }
12251 multi_buffer::Event::LanguageChanged(buffer_id) => {
12252 linked_editing_ranges::refresh_linked_ranges(self, cx);
12253 cx.emit(EditorEvent::Reparsed(*buffer_id));
12254 cx.notify();
12255 }
12256 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12257 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12258 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12259 cx.emit(EditorEvent::TitleChanged)
12260 }
12261 multi_buffer::Event::DiffBaseChanged => {
12262 self.scrollbar_marker_state.dirty = true;
12263 cx.emit(EditorEvent::DiffBaseChanged);
12264 cx.notify();
12265 }
12266 multi_buffer::Event::DiffUpdated { buffer } => {
12267 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12268 cx.notify();
12269 }
12270 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12271 multi_buffer::Event::DiagnosticsUpdated => {
12272 self.refresh_active_diagnostics(cx);
12273 self.scrollbar_marker_state.dirty = true;
12274 cx.notify();
12275 }
12276 _ => {}
12277 };
12278 }
12279
12280 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12281 cx.notify();
12282 }
12283
12284 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12285 self.tasks_update_task = Some(self.refresh_runnables(cx));
12286 self.refresh_inline_completion(true, false, cx);
12287 self.refresh_inlay_hints(
12288 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12289 self.selections.newest_anchor().head(),
12290 &self.buffer.read(cx).snapshot(cx),
12291 cx,
12292 )),
12293 cx,
12294 );
12295
12296 let old_cursor_shape = self.cursor_shape;
12297
12298 {
12299 let editor_settings = EditorSettings::get_global(cx);
12300 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12301 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12302 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12303 }
12304
12305 if old_cursor_shape != self.cursor_shape {
12306 cx.emit(EditorEvent::CursorShapeChanged);
12307 }
12308
12309 let project_settings = ProjectSettings::get_global(cx);
12310 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12311
12312 if self.mode == EditorMode::Full {
12313 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12314 if self.git_blame_inline_enabled != inline_blame_enabled {
12315 self.toggle_git_blame_inline_internal(false, cx);
12316 }
12317 }
12318
12319 cx.notify();
12320 }
12321
12322 pub fn set_searchable(&mut self, searchable: bool) {
12323 self.searchable = searchable;
12324 }
12325
12326 pub fn searchable(&self) -> bool {
12327 self.searchable
12328 }
12329
12330 fn open_proposed_changes_editor(
12331 &mut self,
12332 _: &OpenProposedChangesEditor,
12333 cx: &mut ViewContext<Self>,
12334 ) {
12335 let Some(workspace) = self.workspace() else {
12336 cx.propagate();
12337 return;
12338 };
12339
12340 let buffer = self.buffer.read(cx);
12341 let mut new_selections_by_buffer = HashMap::default();
12342 for selection in self.selections.all::<usize>(cx) {
12343 for (buffer, range, _) in
12344 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12345 {
12346 let mut range = range.to_point(buffer.read(cx));
12347 range.start.column = 0;
12348 range.end.column = buffer.read(cx).line_len(range.end.row);
12349 new_selections_by_buffer
12350 .entry(buffer)
12351 .or_insert(Vec::new())
12352 .push(range)
12353 }
12354 }
12355
12356 let proposed_changes_buffers = new_selections_by_buffer
12357 .into_iter()
12358 .map(|(buffer, ranges)| ProposedChangesBuffer { buffer, ranges })
12359 .collect::<Vec<_>>();
12360 let proposed_changes_editor = cx.new_view(|cx| {
12361 ProposedChangesEditor::new(proposed_changes_buffers, self.project.clone(), cx)
12362 });
12363
12364 cx.window_context().defer(move |cx| {
12365 workspace.update(cx, |workspace, cx| {
12366 workspace.active_pane().update(cx, |pane, cx| {
12367 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12368 });
12369 });
12370 });
12371 }
12372
12373 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12374 self.open_excerpts_common(true, cx)
12375 }
12376
12377 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12378 self.open_excerpts_common(false, cx)
12379 }
12380
12381 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
12382 let buffer = self.buffer.read(cx);
12383 if buffer.is_singleton() {
12384 cx.propagate();
12385 return;
12386 }
12387
12388 let Some(workspace) = self.workspace() else {
12389 cx.propagate();
12390 return;
12391 };
12392
12393 let mut new_selections_by_buffer = HashMap::default();
12394 for selection in self.selections.all::<usize>(cx) {
12395 for (mut buffer_handle, mut range, _) in
12396 buffer.range_to_buffer_ranges(selection.range(), cx)
12397 {
12398 // When editing branch buffers, jump to the corresponding location
12399 // in their base buffer.
12400 let buffer = buffer_handle.read(cx);
12401 if let Some(base_buffer) = buffer.diff_base_buffer() {
12402 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12403 buffer_handle = base_buffer;
12404 }
12405
12406 if selection.reversed {
12407 mem::swap(&mut range.start, &mut range.end);
12408 }
12409 new_selections_by_buffer
12410 .entry(buffer_handle)
12411 .or_insert(Vec::new())
12412 .push(range)
12413 }
12414 }
12415
12416 // We defer the pane interaction because we ourselves are a workspace item
12417 // and activating a new item causes the pane to call a method on us reentrantly,
12418 // which panics if we're on the stack.
12419 cx.window_context().defer(move |cx| {
12420 workspace.update(cx, |workspace, cx| {
12421 let pane = if split {
12422 workspace.adjacent_pane(cx)
12423 } else {
12424 workspace.active_pane().clone()
12425 };
12426
12427 for (buffer, ranges) in new_selections_by_buffer {
12428 let editor =
12429 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12430 editor.update(cx, |editor, cx| {
12431 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
12432 s.select_ranges(ranges);
12433 });
12434 });
12435 }
12436 })
12437 });
12438 }
12439
12440 fn jump(
12441 &mut self,
12442 path: ProjectPath,
12443 position: Point,
12444 anchor: language::Anchor,
12445 offset_from_top: u32,
12446 cx: &mut ViewContext<Self>,
12447 ) {
12448 let workspace = self.workspace();
12449 cx.spawn(|_, mut cx| async move {
12450 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
12451 let editor = workspace.update(&mut cx, |workspace, cx| {
12452 // Reset the preview item id before opening the new item
12453 workspace.active_pane().update(cx, |pane, cx| {
12454 pane.set_preview_item_id(None, cx);
12455 });
12456 workspace.open_path_preview(path, None, true, true, cx)
12457 })?;
12458 let editor = editor
12459 .await?
12460 .downcast::<Editor>()
12461 .ok_or_else(|| anyhow!("opened item was not an editor"))?
12462 .downgrade();
12463 editor.update(&mut cx, |editor, cx| {
12464 let buffer = editor
12465 .buffer()
12466 .read(cx)
12467 .as_singleton()
12468 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
12469 let buffer = buffer.read(cx);
12470 let cursor = if buffer.can_resolve(&anchor) {
12471 language::ToPoint::to_point(&anchor, buffer)
12472 } else {
12473 buffer.clip_point(position, Bias::Left)
12474 };
12475
12476 let nav_history = editor.nav_history.take();
12477 editor.change_selections(
12478 Some(Autoscroll::top_relative(offset_from_top as usize)),
12479 cx,
12480 |s| {
12481 s.select_ranges([cursor..cursor]);
12482 },
12483 );
12484 editor.nav_history = nav_history;
12485
12486 anyhow::Ok(())
12487 })??;
12488
12489 anyhow::Ok(())
12490 })
12491 .detach_and_log_err(cx);
12492 }
12493
12494 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12495 let snapshot = self.buffer.read(cx).read(cx);
12496 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12497 Some(
12498 ranges
12499 .iter()
12500 .map(move |range| {
12501 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12502 })
12503 .collect(),
12504 )
12505 }
12506
12507 fn selection_replacement_ranges(
12508 &self,
12509 range: Range<OffsetUtf16>,
12510 cx: &AppContext,
12511 ) -> Vec<Range<OffsetUtf16>> {
12512 let selections = self.selections.all::<OffsetUtf16>(cx);
12513 let newest_selection = selections
12514 .iter()
12515 .max_by_key(|selection| selection.id)
12516 .unwrap();
12517 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12518 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12519 let snapshot = self.buffer.read(cx).read(cx);
12520 selections
12521 .into_iter()
12522 .map(|mut selection| {
12523 selection.start.0 =
12524 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12525 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12526 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12527 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12528 })
12529 .collect()
12530 }
12531
12532 fn report_editor_event(
12533 &self,
12534 operation: &'static str,
12535 file_extension: Option<String>,
12536 cx: &AppContext,
12537 ) {
12538 if cfg!(any(test, feature = "test-support")) {
12539 return;
12540 }
12541
12542 let Some(project) = &self.project else { return };
12543
12544 // If None, we are in a file without an extension
12545 let file = self
12546 .buffer
12547 .read(cx)
12548 .as_singleton()
12549 .and_then(|b| b.read(cx).file());
12550 let file_extension = file_extension.or(file
12551 .as_ref()
12552 .and_then(|file| Path::new(file.file_name(cx)).extension())
12553 .and_then(|e| e.to_str())
12554 .map(|a| a.to_string()));
12555
12556 let vim_mode = cx
12557 .global::<SettingsStore>()
12558 .raw_user_settings()
12559 .get("vim_mode")
12560 == Some(&serde_json::Value::Bool(true));
12561
12562 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12563 == language::language_settings::InlineCompletionProvider::Copilot;
12564 let copilot_enabled_for_language = self
12565 .buffer
12566 .read(cx)
12567 .settings_at(0, cx)
12568 .show_inline_completions;
12569
12570 let project = project.read(cx);
12571 let telemetry = project.client().telemetry().clone();
12572 telemetry.report_editor_event(
12573 file_extension,
12574 vim_mode,
12575 operation,
12576 copilot_enabled,
12577 copilot_enabled_for_language,
12578 project.is_via_ssh(),
12579 )
12580 }
12581
12582 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12583 /// with each line being an array of {text, highlight} objects.
12584 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12585 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12586 return;
12587 };
12588
12589 #[derive(Serialize)]
12590 struct Chunk<'a> {
12591 text: String,
12592 highlight: Option<&'a str>,
12593 }
12594
12595 let snapshot = buffer.read(cx).snapshot();
12596 let range = self
12597 .selected_text_range(false, cx)
12598 .and_then(|selection| {
12599 if selection.range.is_empty() {
12600 None
12601 } else {
12602 Some(selection.range)
12603 }
12604 })
12605 .unwrap_or_else(|| 0..snapshot.len());
12606
12607 let chunks = snapshot.chunks(range, true);
12608 let mut lines = Vec::new();
12609 let mut line: VecDeque<Chunk> = VecDeque::new();
12610
12611 let Some(style) = self.style.as_ref() else {
12612 return;
12613 };
12614
12615 for chunk in chunks {
12616 let highlight = chunk
12617 .syntax_highlight_id
12618 .and_then(|id| id.name(&style.syntax));
12619 let mut chunk_lines = chunk.text.split('\n').peekable();
12620 while let Some(text) = chunk_lines.next() {
12621 let mut merged_with_last_token = false;
12622 if let Some(last_token) = line.back_mut() {
12623 if last_token.highlight == highlight {
12624 last_token.text.push_str(text);
12625 merged_with_last_token = true;
12626 }
12627 }
12628
12629 if !merged_with_last_token {
12630 line.push_back(Chunk {
12631 text: text.into(),
12632 highlight,
12633 });
12634 }
12635
12636 if chunk_lines.peek().is_some() {
12637 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12638 line.pop_front();
12639 }
12640 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12641 line.pop_back();
12642 }
12643
12644 lines.push(mem::take(&mut line));
12645 }
12646 }
12647 }
12648
12649 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12650 return;
12651 };
12652 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12653 }
12654
12655 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12656 &self.inlay_hint_cache
12657 }
12658
12659 pub fn replay_insert_event(
12660 &mut self,
12661 text: &str,
12662 relative_utf16_range: Option<Range<isize>>,
12663 cx: &mut ViewContext<Self>,
12664 ) {
12665 if !self.input_enabled {
12666 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12667 return;
12668 }
12669 if let Some(relative_utf16_range) = relative_utf16_range {
12670 let selections = self.selections.all::<OffsetUtf16>(cx);
12671 self.change_selections(None, cx, |s| {
12672 let new_ranges = selections.into_iter().map(|range| {
12673 let start = OffsetUtf16(
12674 range
12675 .head()
12676 .0
12677 .saturating_add_signed(relative_utf16_range.start),
12678 );
12679 let end = OffsetUtf16(
12680 range
12681 .head()
12682 .0
12683 .saturating_add_signed(relative_utf16_range.end),
12684 );
12685 start..end
12686 });
12687 s.select_ranges(new_ranges);
12688 });
12689 }
12690
12691 self.handle_input(text, cx);
12692 }
12693
12694 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12695 let Some(provider) = self.semantics_provider.as_ref() else {
12696 return false;
12697 };
12698
12699 let mut supports = false;
12700 self.buffer().read(cx).for_each_buffer(|buffer| {
12701 supports |= provider.supports_inlay_hints(buffer, cx);
12702 });
12703 supports
12704 }
12705
12706 pub fn focus(&self, cx: &mut WindowContext) {
12707 cx.focus(&self.focus_handle)
12708 }
12709
12710 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12711 self.focus_handle.is_focused(cx)
12712 }
12713
12714 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12715 cx.emit(EditorEvent::Focused);
12716
12717 if let Some(descendant) = self
12718 .last_focused_descendant
12719 .take()
12720 .and_then(|descendant| descendant.upgrade())
12721 {
12722 cx.focus(&descendant);
12723 } else {
12724 if let Some(blame) = self.blame.as_ref() {
12725 blame.update(cx, GitBlame::focus)
12726 }
12727
12728 self.blink_manager.update(cx, BlinkManager::enable);
12729 self.show_cursor_names(cx);
12730 self.buffer.update(cx, |buffer, cx| {
12731 buffer.finalize_last_transaction(cx);
12732 if self.leader_peer_id.is_none() {
12733 buffer.set_active_selections(
12734 &self.selections.disjoint_anchors(),
12735 self.selections.line_mode,
12736 self.cursor_shape,
12737 cx,
12738 );
12739 }
12740 });
12741 }
12742 }
12743
12744 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12745 cx.emit(EditorEvent::FocusedIn)
12746 }
12747
12748 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12749 if event.blurred != self.focus_handle {
12750 self.last_focused_descendant = Some(event.blurred);
12751 }
12752 }
12753
12754 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12755 self.blink_manager.update(cx, BlinkManager::disable);
12756 self.buffer
12757 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12758
12759 if let Some(blame) = self.blame.as_ref() {
12760 blame.update(cx, GitBlame::blur)
12761 }
12762 if !self.hover_state.focused(cx) {
12763 hide_hover(self, cx);
12764 }
12765
12766 self.hide_context_menu(cx);
12767 cx.emit(EditorEvent::Blurred);
12768 cx.notify();
12769 }
12770
12771 pub fn register_action<A: Action>(
12772 &mut self,
12773 listener: impl Fn(&A, &mut WindowContext) + 'static,
12774 ) -> Subscription {
12775 let id = self.next_editor_action_id.post_inc();
12776 let listener = Arc::new(listener);
12777 self.editor_actions.borrow_mut().insert(
12778 id,
12779 Box::new(move |cx| {
12780 let cx = cx.window_context();
12781 let listener = listener.clone();
12782 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12783 let action = action.downcast_ref().unwrap();
12784 if phase == DispatchPhase::Bubble {
12785 listener(action, cx)
12786 }
12787 })
12788 }),
12789 );
12790
12791 let editor_actions = self.editor_actions.clone();
12792 Subscription::new(move || {
12793 editor_actions.borrow_mut().remove(&id);
12794 })
12795 }
12796
12797 pub fn file_header_size(&self) -> u32 {
12798 self.file_header_size
12799 }
12800
12801 pub fn revert(
12802 &mut self,
12803 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12804 cx: &mut ViewContext<Self>,
12805 ) {
12806 self.buffer().update(cx, |multi_buffer, cx| {
12807 for (buffer_id, changes) in revert_changes {
12808 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12809 buffer.update(cx, |buffer, cx| {
12810 buffer.edit(
12811 changes.into_iter().map(|(range, text)| {
12812 (range, text.to_string().map(Arc::<str>::from))
12813 }),
12814 None,
12815 cx,
12816 );
12817 });
12818 }
12819 }
12820 });
12821 self.change_selections(None, cx, |selections| selections.refresh());
12822 }
12823
12824 pub fn to_pixel_point(
12825 &mut self,
12826 source: multi_buffer::Anchor,
12827 editor_snapshot: &EditorSnapshot,
12828 cx: &mut ViewContext<Self>,
12829 ) -> Option<gpui::Point<Pixels>> {
12830 let source_point = source.to_display_point(editor_snapshot);
12831 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12832 }
12833
12834 pub fn display_to_pixel_point(
12835 &mut self,
12836 source: DisplayPoint,
12837 editor_snapshot: &EditorSnapshot,
12838 cx: &mut ViewContext<Self>,
12839 ) -> Option<gpui::Point<Pixels>> {
12840 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12841 let text_layout_details = self.text_layout_details(cx);
12842 let scroll_top = text_layout_details
12843 .scroll_anchor
12844 .scroll_position(editor_snapshot)
12845 .y;
12846
12847 if source.row().as_f32() < scroll_top.floor() {
12848 return None;
12849 }
12850 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12851 let source_y = line_height * (source.row().as_f32() - scroll_top);
12852 Some(gpui::Point::new(source_x, source_y))
12853 }
12854
12855 pub fn has_active_completions_menu(&self) -> bool {
12856 self.context_menu.read().as_ref().map_or(false, |menu| {
12857 menu.visible() && matches!(menu, ContextMenu::Completions(_))
12858 })
12859 }
12860
12861 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12862 self.addons
12863 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12864 }
12865
12866 pub fn unregister_addon<T: Addon>(&mut self) {
12867 self.addons.remove(&std::any::TypeId::of::<T>());
12868 }
12869
12870 pub fn addon<T: Addon>(&self) -> Option<&T> {
12871 let type_id = std::any::TypeId::of::<T>();
12872 self.addons
12873 .get(&type_id)
12874 .and_then(|item| item.to_any().downcast_ref::<T>())
12875 }
12876}
12877
12878fn hunks_for_selections(
12879 multi_buffer_snapshot: &MultiBufferSnapshot,
12880 selections: &[Selection<Anchor>],
12881) -> Vec<MultiBufferDiffHunk> {
12882 let buffer_rows_for_selections = selections.iter().map(|selection| {
12883 let head = selection.head();
12884 let tail = selection.tail();
12885 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
12886 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
12887 if start > end {
12888 end..start
12889 } else {
12890 start..end
12891 }
12892 });
12893
12894 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
12895}
12896
12897pub fn hunks_for_rows(
12898 rows: impl Iterator<Item = Range<MultiBufferRow>>,
12899 multi_buffer_snapshot: &MultiBufferSnapshot,
12900) -> Vec<MultiBufferDiffHunk> {
12901 let mut hunks = Vec::new();
12902 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
12903 HashMap::default();
12904 for selected_multi_buffer_rows in rows {
12905 let query_rows =
12906 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
12907 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
12908 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
12909 // when the caret is just above or just below the deleted hunk.
12910 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
12911 let related_to_selection = if allow_adjacent {
12912 hunk.row_range.overlaps(&query_rows)
12913 || hunk.row_range.start == query_rows.end
12914 || hunk.row_range.end == query_rows.start
12915 } else {
12916 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
12917 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
12918 hunk.row_range.overlaps(&selected_multi_buffer_rows)
12919 || selected_multi_buffer_rows.end == hunk.row_range.start
12920 };
12921 if related_to_selection {
12922 if !processed_buffer_rows
12923 .entry(hunk.buffer_id)
12924 .or_default()
12925 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
12926 {
12927 continue;
12928 }
12929 hunks.push(hunk);
12930 }
12931 }
12932 }
12933
12934 hunks
12935}
12936
12937pub trait CollaborationHub {
12938 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
12939 fn user_participant_indices<'a>(
12940 &self,
12941 cx: &'a AppContext,
12942 ) -> &'a HashMap<u64, ParticipantIndex>;
12943 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
12944}
12945
12946impl CollaborationHub for Model<Project> {
12947 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
12948 self.read(cx).collaborators()
12949 }
12950
12951 fn user_participant_indices<'a>(
12952 &self,
12953 cx: &'a AppContext,
12954 ) -> &'a HashMap<u64, ParticipantIndex> {
12955 self.read(cx).user_store().read(cx).participant_indices()
12956 }
12957
12958 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
12959 let this = self.read(cx);
12960 let user_ids = this.collaborators().values().map(|c| c.user_id);
12961 this.user_store().read_with(cx, |user_store, cx| {
12962 user_store.participant_names(user_ids, cx)
12963 })
12964 }
12965}
12966
12967pub trait SemanticsProvider {
12968 fn hover(
12969 &self,
12970 buffer: &Model<Buffer>,
12971 position: text::Anchor,
12972 cx: &mut AppContext,
12973 ) -> Option<Task<Vec<project::Hover>>>;
12974
12975 fn inlay_hints(
12976 &self,
12977 buffer_handle: Model<Buffer>,
12978 range: Range<text::Anchor>,
12979 cx: &mut AppContext,
12980 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
12981
12982 fn resolve_inlay_hint(
12983 &self,
12984 hint: InlayHint,
12985 buffer_handle: Model<Buffer>,
12986 server_id: LanguageServerId,
12987 cx: &mut AppContext,
12988 ) -> Option<Task<anyhow::Result<InlayHint>>>;
12989
12990 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
12991
12992 fn document_highlights(
12993 &self,
12994 buffer: &Model<Buffer>,
12995 position: text::Anchor,
12996 cx: &mut AppContext,
12997 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
12998
12999 fn definitions(
13000 &self,
13001 buffer: &Model<Buffer>,
13002 position: text::Anchor,
13003 kind: GotoDefinitionKind,
13004 cx: &mut AppContext,
13005 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13006
13007 fn range_for_rename(
13008 &self,
13009 buffer: &Model<Buffer>,
13010 position: text::Anchor,
13011 cx: &mut AppContext,
13012 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13013
13014 fn perform_rename(
13015 &self,
13016 buffer: &Model<Buffer>,
13017 position: text::Anchor,
13018 new_name: String,
13019 cx: &mut AppContext,
13020 ) -> Option<Task<Result<ProjectTransaction>>>;
13021}
13022
13023pub trait CompletionProvider {
13024 fn completions(
13025 &self,
13026 buffer: &Model<Buffer>,
13027 buffer_position: text::Anchor,
13028 trigger: CompletionContext,
13029 cx: &mut ViewContext<Editor>,
13030 ) -> Task<Result<Vec<Completion>>>;
13031
13032 fn resolve_completions(
13033 &self,
13034 buffer: Model<Buffer>,
13035 completion_indices: Vec<usize>,
13036 completions: Arc<RwLock<Box<[Completion]>>>,
13037 cx: &mut ViewContext<Editor>,
13038 ) -> Task<Result<bool>>;
13039
13040 fn apply_additional_edits_for_completion(
13041 &self,
13042 buffer: Model<Buffer>,
13043 completion: Completion,
13044 push_to_history: bool,
13045 cx: &mut ViewContext<Editor>,
13046 ) -> Task<Result<Option<language::Transaction>>>;
13047
13048 fn is_completion_trigger(
13049 &self,
13050 buffer: &Model<Buffer>,
13051 position: language::Anchor,
13052 text: &str,
13053 trigger_in_words: bool,
13054 cx: &mut ViewContext<Editor>,
13055 ) -> bool;
13056
13057 fn sort_completions(&self) -> bool {
13058 true
13059 }
13060}
13061
13062pub trait CodeActionProvider {
13063 fn code_actions(
13064 &self,
13065 buffer: &Model<Buffer>,
13066 range: Range<text::Anchor>,
13067 cx: &mut WindowContext,
13068 ) -> Task<Result<Vec<CodeAction>>>;
13069
13070 fn apply_code_action(
13071 &self,
13072 buffer_handle: Model<Buffer>,
13073 action: CodeAction,
13074 excerpt_id: ExcerptId,
13075 push_to_history: bool,
13076 cx: &mut WindowContext,
13077 ) -> Task<Result<ProjectTransaction>>;
13078}
13079
13080impl CodeActionProvider for Model<Project> {
13081 fn code_actions(
13082 &self,
13083 buffer: &Model<Buffer>,
13084 range: Range<text::Anchor>,
13085 cx: &mut WindowContext,
13086 ) -> Task<Result<Vec<CodeAction>>> {
13087 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
13088 }
13089
13090 fn apply_code_action(
13091 &self,
13092 buffer_handle: Model<Buffer>,
13093 action: CodeAction,
13094 _excerpt_id: ExcerptId,
13095 push_to_history: bool,
13096 cx: &mut WindowContext,
13097 ) -> Task<Result<ProjectTransaction>> {
13098 self.update(cx, |project, cx| {
13099 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13100 })
13101 }
13102}
13103
13104fn snippet_completions(
13105 project: &Project,
13106 buffer: &Model<Buffer>,
13107 buffer_position: text::Anchor,
13108 cx: &mut AppContext,
13109) -> Vec<Completion> {
13110 let language = buffer.read(cx).language_at(buffer_position);
13111 let language_name = language.as_ref().map(|language| language.lsp_id());
13112 let snippet_store = project.snippets().read(cx);
13113 let snippets = snippet_store.snippets_for(language_name, cx);
13114
13115 if snippets.is_empty() {
13116 return vec![];
13117 }
13118 let snapshot = buffer.read(cx).text_snapshot();
13119 let chunks = snapshot.reversed_chunks_in_range(text::Anchor::MIN..buffer_position);
13120
13121 let mut lines = chunks.lines();
13122 let Some(line_at) = lines.next().filter(|line| !line.is_empty()) else {
13123 return vec![];
13124 };
13125
13126 let scope = language.map(|language| language.default_scope());
13127 let classifier = CharClassifier::new(scope).for_completion(true);
13128 let mut last_word = line_at
13129 .chars()
13130 .rev()
13131 .take_while(|c| classifier.is_word(*c))
13132 .collect::<String>();
13133 last_word = last_word.chars().rev().collect();
13134 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13135 let to_lsp = |point: &text::Anchor| {
13136 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13137 point_to_lsp(end)
13138 };
13139 let lsp_end = to_lsp(&buffer_position);
13140 snippets
13141 .into_iter()
13142 .filter_map(|snippet| {
13143 let matching_prefix = snippet
13144 .prefix
13145 .iter()
13146 .find(|prefix| prefix.starts_with(&last_word))?;
13147 let start = as_offset - last_word.len();
13148 let start = snapshot.anchor_before(start);
13149 let range = start..buffer_position;
13150 let lsp_start = to_lsp(&start);
13151 let lsp_range = lsp::Range {
13152 start: lsp_start,
13153 end: lsp_end,
13154 };
13155 Some(Completion {
13156 old_range: range,
13157 new_text: snippet.body.clone(),
13158 label: CodeLabel {
13159 text: matching_prefix.clone(),
13160 runs: vec![],
13161 filter_range: 0..matching_prefix.len(),
13162 },
13163 server_id: LanguageServerId(usize::MAX),
13164 documentation: snippet.description.clone().map(Documentation::SingleLine),
13165 lsp_completion: lsp::CompletionItem {
13166 label: snippet.prefix.first().unwrap().clone(),
13167 kind: Some(CompletionItemKind::SNIPPET),
13168 label_details: snippet.description.as_ref().map(|description| {
13169 lsp::CompletionItemLabelDetails {
13170 detail: Some(description.clone()),
13171 description: None,
13172 }
13173 }),
13174 insert_text_format: Some(InsertTextFormat::SNIPPET),
13175 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13176 lsp::InsertReplaceEdit {
13177 new_text: snippet.body.clone(),
13178 insert: lsp_range,
13179 replace: lsp_range,
13180 },
13181 )),
13182 filter_text: Some(snippet.body.clone()),
13183 sort_text: Some(char::MAX.to_string()),
13184 ..Default::default()
13185 },
13186 confirm: None,
13187 })
13188 })
13189 .collect()
13190}
13191
13192impl CompletionProvider for Model<Project> {
13193 fn completions(
13194 &self,
13195 buffer: &Model<Buffer>,
13196 buffer_position: text::Anchor,
13197 options: CompletionContext,
13198 cx: &mut ViewContext<Editor>,
13199 ) -> Task<Result<Vec<Completion>>> {
13200 self.update(cx, |project, cx| {
13201 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13202 let project_completions = project.completions(buffer, buffer_position, options, cx);
13203 cx.background_executor().spawn(async move {
13204 let mut completions = project_completions.await?;
13205 //let snippets = snippets.into_iter().;
13206 completions.extend(snippets);
13207 Ok(completions)
13208 })
13209 })
13210 }
13211
13212 fn resolve_completions(
13213 &self,
13214 buffer: Model<Buffer>,
13215 completion_indices: Vec<usize>,
13216 completions: Arc<RwLock<Box<[Completion]>>>,
13217 cx: &mut ViewContext<Editor>,
13218 ) -> Task<Result<bool>> {
13219 self.update(cx, |project, cx| {
13220 project.resolve_completions(buffer, completion_indices, completions, cx)
13221 })
13222 }
13223
13224 fn apply_additional_edits_for_completion(
13225 &self,
13226 buffer: Model<Buffer>,
13227 completion: Completion,
13228 push_to_history: bool,
13229 cx: &mut ViewContext<Editor>,
13230 ) -> Task<Result<Option<language::Transaction>>> {
13231 self.update(cx, |project, cx| {
13232 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13233 })
13234 }
13235
13236 fn is_completion_trigger(
13237 &self,
13238 buffer: &Model<Buffer>,
13239 position: language::Anchor,
13240 text: &str,
13241 trigger_in_words: bool,
13242 cx: &mut ViewContext<Editor>,
13243 ) -> bool {
13244 if !EditorSettings::get_global(cx).show_completions_on_input {
13245 return false;
13246 }
13247
13248 let mut chars = text.chars();
13249 let char = if let Some(char) = chars.next() {
13250 char
13251 } else {
13252 return false;
13253 };
13254 if chars.next().is_some() {
13255 return false;
13256 }
13257
13258 let buffer = buffer.read(cx);
13259 let classifier = buffer
13260 .snapshot()
13261 .char_classifier_at(position)
13262 .for_completion(true);
13263 if trigger_in_words && classifier.is_word(char) {
13264 return true;
13265 }
13266
13267 buffer
13268 .completion_triggers()
13269 .iter()
13270 .any(|string| string == text)
13271 }
13272}
13273
13274impl SemanticsProvider for Model<Project> {
13275 fn hover(
13276 &self,
13277 buffer: &Model<Buffer>,
13278 position: text::Anchor,
13279 cx: &mut AppContext,
13280 ) -> Option<Task<Vec<project::Hover>>> {
13281 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13282 }
13283
13284 fn document_highlights(
13285 &self,
13286 buffer: &Model<Buffer>,
13287 position: text::Anchor,
13288 cx: &mut AppContext,
13289 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13290 Some(self.update(cx, |project, cx| {
13291 project.document_highlights(buffer, position, cx)
13292 }))
13293 }
13294
13295 fn definitions(
13296 &self,
13297 buffer: &Model<Buffer>,
13298 position: text::Anchor,
13299 kind: GotoDefinitionKind,
13300 cx: &mut AppContext,
13301 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13302 Some(self.update(cx, |project, cx| match kind {
13303 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13304 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13305 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13306 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13307 }))
13308 }
13309
13310 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13311 // TODO: make this work for remote projects
13312 self.read(cx)
13313 .language_servers_for_buffer(buffer.read(cx), cx)
13314 .any(
13315 |(_, server)| match server.capabilities().inlay_hint_provider {
13316 Some(lsp::OneOf::Left(enabled)) => enabled,
13317 Some(lsp::OneOf::Right(_)) => true,
13318 None => false,
13319 },
13320 )
13321 }
13322
13323 fn inlay_hints(
13324 &self,
13325 buffer_handle: Model<Buffer>,
13326 range: Range<text::Anchor>,
13327 cx: &mut AppContext,
13328 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13329 Some(self.update(cx, |project, cx| {
13330 project.inlay_hints(buffer_handle, range, cx)
13331 }))
13332 }
13333
13334 fn resolve_inlay_hint(
13335 &self,
13336 hint: InlayHint,
13337 buffer_handle: Model<Buffer>,
13338 server_id: LanguageServerId,
13339 cx: &mut AppContext,
13340 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13341 Some(self.update(cx, |project, cx| {
13342 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13343 }))
13344 }
13345
13346 fn range_for_rename(
13347 &self,
13348 buffer: &Model<Buffer>,
13349 position: text::Anchor,
13350 cx: &mut AppContext,
13351 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13352 Some(self.update(cx, |project, cx| {
13353 project.prepare_rename(buffer.clone(), position, cx)
13354 }))
13355 }
13356
13357 fn perform_rename(
13358 &self,
13359 buffer: &Model<Buffer>,
13360 position: text::Anchor,
13361 new_name: String,
13362 cx: &mut AppContext,
13363 ) -> Option<Task<Result<ProjectTransaction>>> {
13364 Some(self.update(cx, |project, cx| {
13365 project.perform_rename(buffer.clone(), position, new_name, cx)
13366 }))
13367 }
13368}
13369
13370fn inlay_hint_settings(
13371 location: Anchor,
13372 snapshot: &MultiBufferSnapshot,
13373 cx: &mut ViewContext<'_, Editor>,
13374) -> InlayHintSettings {
13375 let file = snapshot.file_at(location);
13376 let language = snapshot.language_at(location);
13377 let settings = all_language_settings(file, cx);
13378 settings
13379 .language(language.map(|l| l.name()).as_ref())
13380 .inlay_hints
13381}
13382
13383fn consume_contiguous_rows(
13384 contiguous_row_selections: &mut Vec<Selection<Point>>,
13385 selection: &Selection<Point>,
13386 display_map: &DisplaySnapshot,
13387 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
13388) -> (MultiBufferRow, MultiBufferRow) {
13389 contiguous_row_selections.push(selection.clone());
13390 let start_row = MultiBufferRow(selection.start.row);
13391 let mut end_row = ending_row(selection, display_map);
13392
13393 while let Some(next_selection) = selections.peek() {
13394 if next_selection.start.row <= end_row.0 {
13395 end_row = ending_row(next_selection, display_map);
13396 contiguous_row_selections.push(selections.next().unwrap().clone());
13397 } else {
13398 break;
13399 }
13400 }
13401 (start_row, end_row)
13402}
13403
13404fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13405 if next_selection.end.column > 0 || next_selection.is_empty() {
13406 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13407 } else {
13408 MultiBufferRow(next_selection.end.row)
13409 }
13410}
13411
13412impl EditorSnapshot {
13413 pub fn remote_selections_in_range<'a>(
13414 &'a self,
13415 range: &'a Range<Anchor>,
13416 collaboration_hub: &dyn CollaborationHub,
13417 cx: &'a AppContext,
13418 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13419 let participant_names = collaboration_hub.user_names(cx);
13420 let participant_indices = collaboration_hub.user_participant_indices(cx);
13421 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13422 let collaborators_by_replica_id = collaborators_by_peer_id
13423 .iter()
13424 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13425 .collect::<HashMap<_, _>>();
13426 self.buffer_snapshot
13427 .selections_in_range(range, false)
13428 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13429 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13430 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13431 let user_name = participant_names.get(&collaborator.user_id).cloned();
13432 Some(RemoteSelection {
13433 replica_id,
13434 selection,
13435 cursor_shape,
13436 line_mode,
13437 participant_index,
13438 peer_id: collaborator.peer_id,
13439 user_name,
13440 })
13441 })
13442 }
13443
13444 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13445 self.display_snapshot.buffer_snapshot.language_at(position)
13446 }
13447
13448 pub fn is_focused(&self) -> bool {
13449 self.is_focused
13450 }
13451
13452 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13453 self.placeholder_text.as_ref()
13454 }
13455
13456 pub fn scroll_position(&self) -> gpui::Point<f32> {
13457 self.scroll_anchor.scroll_position(&self.display_snapshot)
13458 }
13459
13460 fn gutter_dimensions(
13461 &self,
13462 font_id: FontId,
13463 font_size: Pixels,
13464 em_width: Pixels,
13465 em_advance: Pixels,
13466 max_line_number_width: Pixels,
13467 cx: &AppContext,
13468 ) -> GutterDimensions {
13469 if !self.show_gutter {
13470 return GutterDimensions::default();
13471 }
13472 let descent = cx.text_system().descent(font_id, font_size);
13473
13474 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13475 matches!(
13476 ProjectSettings::get_global(cx).git.git_gutter,
13477 Some(GitGutterSetting::TrackedFiles)
13478 )
13479 });
13480 let gutter_settings = EditorSettings::get_global(cx).gutter;
13481 let show_line_numbers = self
13482 .show_line_numbers
13483 .unwrap_or(gutter_settings.line_numbers);
13484 let line_gutter_width = if show_line_numbers {
13485 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13486 let min_width_for_number_on_gutter = em_advance * 4.0;
13487 max_line_number_width.max(min_width_for_number_on_gutter)
13488 } else {
13489 0.0.into()
13490 };
13491
13492 let show_code_actions = self
13493 .show_code_actions
13494 .unwrap_or(gutter_settings.code_actions);
13495
13496 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13497
13498 let git_blame_entries_width =
13499 self.git_blame_gutter_max_author_length
13500 .map(|max_author_length| {
13501 // Length of the author name, but also space for the commit hash,
13502 // the spacing and the timestamp.
13503 let max_char_count = max_author_length
13504 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13505 + 7 // length of commit sha
13506 + 14 // length of max relative timestamp ("60 minutes ago")
13507 + 4; // gaps and margins
13508
13509 em_advance * max_char_count
13510 });
13511
13512 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13513 left_padding += if show_code_actions || show_runnables {
13514 em_width * 3.0
13515 } else if show_git_gutter && show_line_numbers {
13516 em_width * 2.0
13517 } else if show_git_gutter || show_line_numbers {
13518 em_width
13519 } else {
13520 px(0.)
13521 };
13522
13523 let right_padding = if gutter_settings.folds && show_line_numbers {
13524 em_width * 4.0
13525 } else if gutter_settings.folds {
13526 em_width * 3.0
13527 } else if show_line_numbers {
13528 em_width
13529 } else {
13530 px(0.)
13531 };
13532
13533 GutterDimensions {
13534 left_padding,
13535 right_padding,
13536 width: line_gutter_width + left_padding + right_padding,
13537 margin: -descent,
13538 git_blame_entries_width,
13539 }
13540 }
13541
13542 pub fn render_fold_toggle(
13543 &self,
13544 buffer_row: MultiBufferRow,
13545 row_contains_cursor: bool,
13546 editor: View<Editor>,
13547 cx: &mut WindowContext,
13548 ) -> Option<AnyElement> {
13549 let folded = self.is_line_folded(buffer_row);
13550
13551 if let Some(crease) = self
13552 .crease_snapshot
13553 .query_row(buffer_row, &self.buffer_snapshot)
13554 {
13555 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13556 if folded {
13557 editor.update(cx, |editor, cx| {
13558 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13559 });
13560 } else {
13561 editor.update(cx, |editor, cx| {
13562 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13563 });
13564 }
13565 });
13566
13567 Some((crease.render_toggle)(
13568 buffer_row,
13569 folded,
13570 toggle_callback,
13571 cx,
13572 ))
13573 } else if folded
13574 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
13575 {
13576 Some(
13577 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
13578 .selected(folded)
13579 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13580 if folded {
13581 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13582 } else {
13583 this.fold_at(&FoldAt { buffer_row }, cx);
13584 }
13585 }))
13586 .into_any_element(),
13587 )
13588 } else {
13589 None
13590 }
13591 }
13592
13593 pub fn render_crease_trailer(
13594 &self,
13595 buffer_row: MultiBufferRow,
13596 cx: &mut WindowContext,
13597 ) -> Option<AnyElement> {
13598 let folded = self.is_line_folded(buffer_row);
13599 let crease = self
13600 .crease_snapshot
13601 .query_row(buffer_row, &self.buffer_snapshot)?;
13602 Some((crease.render_trailer)(buffer_row, folded, cx))
13603 }
13604}
13605
13606impl Deref for EditorSnapshot {
13607 type Target = DisplaySnapshot;
13608
13609 fn deref(&self) -> &Self::Target {
13610 &self.display_snapshot
13611 }
13612}
13613
13614#[derive(Clone, Debug, PartialEq, Eq)]
13615pub enum EditorEvent {
13616 InputIgnored {
13617 text: Arc<str>,
13618 },
13619 InputHandled {
13620 utf16_range_to_replace: Option<Range<isize>>,
13621 text: Arc<str>,
13622 },
13623 ExcerptsAdded {
13624 buffer: Model<Buffer>,
13625 predecessor: ExcerptId,
13626 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
13627 },
13628 ExcerptsRemoved {
13629 ids: Vec<ExcerptId>,
13630 },
13631 ExcerptsEdited {
13632 ids: Vec<ExcerptId>,
13633 },
13634 ExcerptsExpanded {
13635 ids: Vec<ExcerptId>,
13636 },
13637 BufferEdited,
13638 Edited {
13639 transaction_id: clock::Lamport,
13640 },
13641 Reparsed(BufferId),
13642 Focused,
13643 FocusedIn,
13644 Blurred,
13645 DirtyChanged,
13646 Saved,
13647 TitleChanged,
13648 DiffBaseChanged,
13649 SelectionsChanged {
13650 local: bool,
13651 },
13652 ScrollPositionChanged {
13653 local: bool,
13654 autoscroll: bool,
13655 },
13656 Closed,
13657 TransactionUndone {
13658 transaction_id: clock::Lamport,
13659 },
13660 TransactionBegun {
13661 transaction_id: clock::Lamport,
13662 },
13663 CursorShapeChanged,
13664}
13665
13666impl EventEmitter<EditorEvent> for Editor {}
13667
13668impl FocusableView for Editor {
13669 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
13670 self.focus_handle.clone()
13671 }
13672}
13673
13674impl Render for Editor {
13675 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
13676 let settings = ThemeSettings::get_global(cx);
13677
13678 let text_style = match self.mode {
13679 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
13680 color: cx.theme().colors().editor_foreground,
13681 font_family: settings.ui_font.family.clone(),
13682 font_features: settings.ui_font.features.clone(),
13683 font_fallbacks: settings.ui_font.fallbacks.clone(),
13684 font_size: rems(0.875).into(),
13685 font_weight: settings.ui_font.weight,
13686 line_height: relative(settings.buffer_line_height.value()),
13687 ..Default::default()
13688 },
13689 EditorMode::Full => TextStyle {
13690 color: cx.theme().colors().editor_foreground,
13691 font_family: settings.buffer_font.family.clone(),
13692 font_features: settings.buffer_font.features.clone(),
13693 font_fallbacks: settings.buffer_font.fallbacks.clone(),
13694 font_size: settings.buffer_font_size(cx).into(),
13695 font_weight: settings.buffer_font.weight,
13696 line_height: relative(settings.buffer_line_height.value()),
13697 ..Default::default()
13698 },
13699 };
13700
13701 let background = match self.mode {
13702 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
13703 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
13704 EditorMode::Full => cx.theme().colors().editor_background,
13705 };
13706
13707 EditorElement::new(
13708 cx.view(),
13709 EditorStyle {
13710 background,
13711 local_player: cx.theme().players().local(),
13712 text: text_style,
13713 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
13714 syntax: cx.theme().syntax().clone(),
13715 status: cx.theme().status().clone(),
13716 inlay_hints_style: make_inlay_hints_style(cx),
13717 suggestions_style: HighlightStyle {
13718 color: Some(cx.theme().status().predictive),
13719 ..HighlightStyle::default()
13720 },
13721 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
13722 },
13723 )
13724 }
13725}
13726
13727impl ViewInputHandler for Editor {
13728 fn text_for_range(
13729 &mut self,
13730 range_utf16: Range<usize>,
13731 cx: &mut ViewContext<Self>,
13732 ) -> Option<String> {
13733 Some(
13734 self.buffer
13735 .read(cx)
13736 .read(cx)
13737 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
13738 .collect(),
13739 )
13740 }
13741
13742 fn selected_text_range(
13743 &mut self,
13744 ignore_disabled_input: bool,
13745 cx: &mut ViewContext<Self>,
13746 ) -> Option<UTF16Selection> {
13747 // Prevent the IME menu from appearing when holding down an alphabetic key
13748 // while input is disabled.
13749 if !ignore_disabled_input && !self.input_enabled {
13750 return None;
13751 }
13752
13753 let selection = self.selections.newest::<OffsetUtf16>(cx);
13754 let range = selection.range();
13755
13756 Some(UTF16Selection {
13757 range: range.start.0..range.end.0,
13758 reversed: selection.reversed,
13759 })
13760 }
13761
13762 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
13763 let snapshot = self.buffer.read(cx).read(cx);
13764 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
13765 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
13766 }
13767
13768 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
13769 self.clear_highlights::<InputComposition>(cx);
13770 self.ime_transaction.take();
13771 }
13772
13773 fn replace_text_in_range(
13774 &mut self,
13775 range_utf16: Option<Range<usize>>,
13776 text: &str,
13777 cx: &mut ViewContext<Self>,
13778 ) {
13779 if !self.input_enabled {
13780 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13781 return;
13782 }
13783
13784 self.transact(cx, |this, cx| {
13785 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
13786 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13787 Some(this.selection_replacement_ranges(range_utf16, cx))
13788 } else {
13789 this.marked_text_ranges(cx)
13790 };
13791
13792 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
13793 let newest_selection_id = this.selections.newest_anchor().id;
13794 this.selections
13795 .all::<OffsetUtf16>(cx)
13796 .iter()
13797 .zip(ranges_to_replace.iter())
13798 .find_map(|(selection, range)| {
13799 if selection.id == newest_selection_id {
13800 Some(
13801 (range.start.0 as isize - selection.head().0 as isize)
13802 ..(range.end.0 as isize - selection.head().0 as isize),
13803 )
13804 } else {
13805 None
13806 }
13807 })
13808 });
13809
13810 cx.emit(EditorEvent::InputHandled {
13811 utf16_range_to_replace: range_to_replace,
13812 text: text.into(),
13813 });
13814
13815 if let Some(new_selected_ranges) = new_selected_ranges {
13816 this.change_selections(None, cx, |selections| {
13817 selections.select_ranges(new_selected_ranges)
13818 });
13819 this.backspace(&Default::default(), cx);
13820 }
13821
13822 this.handle_input(text, cx);
13823 });
13824
13825 if let Some(transaction) = self.ime_transaction {
13826 self.buffer.update(cx, |buffer, cx| {
13827 buffer.group_until_transaction(transaction, cx);
13828 });
13829 }
13830
13831 self.unmark_text(cx);
13832 }
13833
13834 fn replace_and_mark_text_in_range(
13835 &mut self,
13836 range_utf16: Option<Range<usize>>,
13837 text: &str,
13838 new_selected_range_utf16: Option<Range<usize>>,
13839 cx: &mut ViewContext<Self>,
13840 ) {
13841 if !self.input_enabled {
13842 return;
13843 }
13844
13845 let transaction = self.transact(cx, |this, cx| {
13846 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
13847 let snapshot = this.buffer.read(cx).read(cx);
13848 if let Some(relative_range_utf16) = range_utf16.as_ref() {
13849 for marked_range in &mut marked_ranges {
13850 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
13851 marked_range.start.0 += relative_range_utf16.start;
13852 marked_range.start =
13853 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
13854 marked_range.end =
13855 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
13856 }
13857 }
13858 Some(marked_ranges)
13859 } else if let Some(range_utf16) = range_utf16 {
13860 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13861 Some(this.selection_replacement_ranges(range_utf16, cx))
13862 } else {
13863 None
13864 };
13865
13866 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
13867 let newest_selection_id = this.selections.newest_anchor().id;
13868 this.selections
13869 .all::<OffsetUtf16>(cx)
13870 .iter()
13871 .zip(ranges_to_replace.iter())
13872 .find_map(|(selection, range)| {
13873 if selection.id == newest_selection_id {
13874 Some(
13875 (range.start.0 as isize - selection.head().0 as isize)
13876 ..(range.end.0 as isize - selection.head().0 as isize),
13877 )
13878 } else {
13879 None
13880 }
13881 })
13882 });
13883
13884 cx.emit(EditorEvent::InputHandled {
13885 utf16_range_to_replace: range_to_replace,
13886 text: text.into(),
13887 });
13888
13889 if let Some(ranges) = ranges_to_replace {
13890 this.change_selections(None, cx, |s| s.select_ranges(ranges));
13891 }
13892
13893 let marked_ranges = {
13894 let snapshot = this.buffer.read(cx).read(cx);
13895 this.selections
13896 .disjoint_anchors()
13897 .iter()
13898 .map(|selection| {
13899 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
13900 })
13901 .collect::<Vec<_>>()
13902 };
13903
13904 if text.is_empty() {
13905 this.unmark_text(cx);
13906 } else {
13907 this.highlight_text::<InputComposition>(
13908 marked_ranges.clone(),
13909 HighlightStyle {
13910 underline: Some(UnderlineStyle {
13911 thickness: px(1.),
13912 color: None,
13913 wavy: false,
13914 }),
13915 ..Default::default()
13916 },
13917 cx,
13918 );
13919 }
13920
13921 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
13922 let use_autoclose = this.use_autoclose;
13923 let use_auto_surround = this.use_auto_surround;
13924 this.set_use_autoclose(false);
13925 this.set_use_auto_surround(false);
13926 this.handle_input(text, cx);
13927 this.set_use_autoclose(use_autoclose);
13928 this.set_use_auto_surround(use_auto_surround);
13929
13930 if let Some(new_selected_range) = new_selected_range_utf16 {
13931 let snapshot = this.buffer.read(cx).read(cx);
13932 let new_selected_ranges = marked_ranges
13933 .into_iter()
13934 .map(|marked_range| {
13935 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
13936 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
13937 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
13938 snapshot.clip_offset_utf16(new_start, Bias::Left)
13939 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
13940 })
13941 .collect::<Vec<_>>();
13942
13943 drop(snapshot);
13944 this.change_selections(None, cx, |selections| {
13945 selections.select_ranges(new_selected_ranges)
13946 });
13947 }
13948 });
13949
13950 self.ime_transaction = self.ime_transaction.or(transaction);
13951 if let Some(transaction) = self.ime_transaction {
13952 self.buffer.update(cx, |buffer, cx| {
13953 buffer.group_until_transaction(transaction, cx);
13954 });
13955 }
13956
13957 if self.text_highlights::<InputComposition>(cx).is_none() {
13958 self.ime_transaction.take();
13959 }
13960 }
13961
13962 fn bounds_for_range(
13963 &mut self,
13964 range_utf16: Range<usize>,
13965 element_bounds: gpui::Bounds<Pixels>,
13966 cx: &mut ViewContext<Self>,
13967 ) -> Option<gpui::Bounds<Pixels>> {
13968 let text_layout_details = self.text_layout_details(cx);
13969 let style = &text_layout_details.editor_style;
13970 let font_id = cx.text_system().resolve_font(&style.text.font());
13971 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13972 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13973
13974 let em_width = cx
13975 .text_system()
13976 .typographic_bounds(font_id, font_size, 'm')
13977 .unwrap()
13978 .size
13979 .width;
13980
13981 let snapshot = self.snapshot(cx);
13982 let scroll_position = snapshot.scroll_position();
13983 let scroll_left = scroll_position.x * em_width;
13984
13985 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
13986 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
13987 + self.gutter_dimensions.width;
13988 let y = line_height * (start.row().as_f32() - scroll_position.y);
13989
13990 Some(Bounds {
13991 origin: element_bounds.origin + point(x, y),
13992 size: size(em_width, line_height),
13993 })
13994 }
13995}
13996
13997trait SelectionExt {
13998 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
13999 fn spanned_rows(
14000 &self,
14001 include_end_if_at_line_start: bool,
14002 map: &DisplaySnapshot,
14003 ) -> Range<MultiBufferRow>;
14004}
14005
14006impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14007 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14008 let start = self
14009 .start
14010 .to_point(&map.buffer_snapshot)
14011 .to_display_point(map);
14012 let end = self
14013 .end
14014 .to_point(&map.buffer_snapshot)
14015 .to_display_point(map);
14016 if self.reversed {
14017 end..start
14018 } else {
14019 start..end
14020 }
14021 }
14022
14023 fn spanned_rows(
14024 &self,
14025 include_end_if_at_line_start: bool,
14026 map: &DisplaySnapshot,
14027 ) -> Range<MultiBufferRow> {
14028 let start = self.start.to_point(&map.buffer_snapshot);
14029 let mut end = self.end.to_point(&map.buffer_snapshot);
14030 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14031 end.row -= 1;
14032 }
14033
14034 let buffer_start = map.prev_line_boundary(start).0;
14035 let buffer_end = map.next_line_boundary(end).0;
14036 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14037 }
14038}
14039
14040impl<T: InvalidationRegion> InvalidationStack<T> {
14041 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14042 where
14043 S: Clone + ToOffset,
14044 {
14045 while let Some(region) = self.last() {
14046 let all_selections_inside_invalidation_ranges =
14047 if selections.len() == region.ranges().len() {
14048 selections
14049 .iter()
14050 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14051 .all(|(selection, invalidation_range)| {
14052 let head = selection.head().to_offset(buffer);
14053 invalidation_range.start <= head && invalidation_range.end >= head
14054 })
14055 } else {
14056 false
14057 };
14058
14059 if all_selections_inside_invalidation_ranges {
14060 break;
14061 } else {
14062 self.pop();
14063 }
14064 }
14065 }
14066}
14067
14068impl<T> Default for InvalidationStack<T> {
14069 fn default() -> Self {
14070 Self(Default::default())
14071 }
14072}
14073
14074impl<T> Deref for InvalidationStack<T> {
14075 type Target = Vec<T>;
14076
14077 fn deref(&self) -> &Self::Target {
14078 &self.0
14079 }
14080}
14081
14082impl<T> DerefMut for InvalidationStack<T> {
14083 fn deref_mut(&mut self) -> &mut Self::Target {
14084 &mut self.0
14085 }
14086}
14087
14088impl InvalidationRegion for SnippetState {
14089 fn ranges(&self) -> &[Range<Anchor>] {
14090 &self.ranges[self.active_index]
14091 }
14092}
14093
14094pub fn diagnostic_block_renderer(
14095 diagnostic: Diagnostic,
14096 max_message_rows: Option<u8>,
14097 allow_closing: bool,
14098 _is_valid: bool,
14099) -> RenderBlock {
14100 let (text_without_backticks, code_ranges) =
14101 highlight_diagnostic_message(&diagnostic, max_message_rows);
14102
14103 Box::new(move |cx: &mut BlockContext| {
14104 let group_id: SharedString = cx.block_id.to_string().into();
14105
14106 let mut text_style = cx.text_style().clone();
14107 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14108 let theme_settings = ThemeSettings::get_global(cx);
14109 text_style.font_family = theme_settings.buffer_font.family.clone();
14110 text_style.font_style = theme_settings.buffer_font.style;
14111 text_style.font_features = theme_settings.buffer_font.features.clone();
14112 text_style.font_weight = theme_settings.buffer_font.weight;
14113
14114 let multi_line_diagnostic = diagnostic.message.contains('\n');
14115
14116 let buttons = |diagnostic: &Diagnostic, block_id: BlockId| {
14117 if multi_line_diagnostic {
14118 v_flex()
14119 } else {
14120 h_flex()
14121 }
14122 .when(allow_closing, |div| {
14123 div.children(diagnostic.is_primary.then(|| {
14124 IconButton::new(("close-block", EntityId::from(block_id)), IconName::XCircle)
14125 .icon_color(Color::Muted)
14126 .size(ButtonSize::Compact)
14127 .style(ButtonStyle::Transparent)
14128 .visible_on_hover(group_id.clone())
14129 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14130 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14131 }))
14132 })
14133 .child(
14134 IconButton::new(("copy-block", EntityId::from(block_id)), IconName::Copy)
14135 .icon_color(Color::Muted)
14136 .size(ButtonSize::Compact)
14137 .style(ButtonStyle::Transparent)
14138 .visible_on_hover(group_id.clone())
14139 .on_click({
14140 let message = diagnostic.message.clone();
14141 move |_click, cx| {
14142 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14143 }
14144 })
14145 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14146 )
14147 };
14148
14149 let icon_size = buttons(&diagnostic, cx.block_id)
14150 .into_any_element()
14151 .layout_as_root(AvailableSpace::min_size(), cx);
14152
14153 h_flex()
14154 .id(cx.block_id)
14155 .group(group_id.clone())
14156 .relative()
14157 .size_full()
14158 .pl(cx.gutter_dimensions.width)
14159 .w(cx.max_width + cx.gutter_dimensions.width)
14160 .child(
14161 div()
14162 .flex()
14163 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14164 .flex_shrink(),
14165 )
14166 .child(buttons(&diagnostic, cx.block_id))
14167 .child(div().flex().flex_shrink_0().child(
14168 StyledText::new(text_without_backticks.clone()).with_highlights(
14169 &text_style,
14170 code_ranges.iter().map(|range| {
14171 (
14172 range.clone(),
14173 HighlightStyle {
14174 font_weight: Some(FontWeight::BOLD),
14175 ..Default::default()
14176 },
14177 )
14178 }),
14179 ),
14180 ))
14181 .into_any_element()
14182 })
14183}
14184
14185pub fn highlight_diagnostic_message(
14186 diagnostic: &Diagnostic,
14187 mut max_message_rows: Option<u8>,
14188) -> (SharedString, Vec<Range<usize>>) {
14189 let mut text_without_backticks = String::new();
14190 let mut code_ranges = Vec::new();
14191
14192 if let Some(source) = &diagnostic.source {
14193 text_without_backticks.push_str(source);
14194 code_ranges.push(0..source.len());
14195 text_without_backticks.push_str(": ");
14196 }
14197
14198 let mut prev_offset = 0;
14199 let mut in_code_block = false;
14200 let has_row_limit = max_message_rows.is_some();
14201 let mut newline_indices = diagnostic
14202 .message
14203 .match_indices('\n')
14204 .filter(|_| has_row_limit)
14205 .map(|(ix, _)| ix)
14206 .fuse()
14207 .peekable();
14208
14209 for (quote_ix, _) in diagnostic
14210 .message
14211 .match_indices('`')
14212 .chain([(diagnostic.message.len(), "")])
14213 {
14214 let mut first_newline_ix = None;
14215 let mut last_newline_ix = None;
14216 while let Some(newline_ix) = newline_indices.peek() {
14217 if *newline_ix < quote_ix {
14218 if first_newline_ix.is_none() {
14219 first_newline_ix = Some(*newline_ix);
14220 }
14221 last_newline_ix = Some(*newline_ix);
14222
14223 if let Some(rows_left) = &mut max_message_rows {
14224 if *rows_left == 0 {
14225 break;
14226 } else {
14227 *rows_left -= 1;
14228 }
14229 }
14230 let _ = newline_indices.next();
14231 } else {
14232 break;
14233 }
14234 }
14235 let prev_len = text_without_backticks.len();
14236 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14237 text_without_backticks.push_str(new_text);
14238 if in_code_block {
14239 code_ranges.push(prev_len..text_without_backticks.len());
14240 }
14241 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14242 in_code_block = !in_code_block;
14243 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14244 text_without_backticks.push_str("...");
14245 break;
14246 }
14247 }
14248
14249 (text_without_backticks.into(), code_ranges)
14250}
14251
14252fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14253 match severity {
14254 DiagnosticSeverity::ERROR => colors.error,
14255 DiagnosticSeverity::WARNING => colors.warning,
14256 DiagnosticSeverity::INFORMATION => colors.info,
14257 DiagnosticSeverity::HINT => colors.info,
14258 _ => colors.ignored,
14259 }
14260}
14261
14262pub fn styled_runs_for_code_label<'a>(
14263 label: &'a CodeLabel,
14264 syntax_theme: &'a theme::SyntaxTheme,
14265) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14266 let fade_out = HighlightStyle {
14267 fade_out: Some(0.35),
14268 ..Default::default()
14269 };
14270
14271 let mut prev_end = label.filter_range.end;
14272 label
14273 .runs
14274 .iter()
14275 .enumerate()
14276 .flat_map(move |(ix, (range, highlight_id))| {
14277 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14278 style
14279 } else {
14280 return Default::default();
14281 };
14282 let mut muted_style = style;
14283 muted_style.highlight(fade_out);
14284
14285 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14286 if range.start >= label.filter_range.end {
14287 if range.start > prev_end {
14288 runs.push((prev_end..range.start, fade_out));
14289 }
14290 runs.push((range.clone(), muted_style));
14291 } else if range.end <= label.filter_range.end {
14292 runs.push((range.clone(), style));
14293 } else {
14294 runs.push((range.start..label.filter_range.end, style));
14295 runs.push((label.filter_range.end..range.end, muted_style));
14296 }
14297 prev_end = cmp::max(prev_end, range.end);
14298
14299 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14300 runs.push((prev_end..label.text.len(), fade_out));
14301 }
14302
14303 runs
14304 })
14305}
14306
14307pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14308 let mut prev_index = 0;
14309 let mut prev_codepoint: Option<char> = None;
14310 text.char_indices()
14311 .chain([(text.len(), '\0')])
14312 .filter_map(move |(index, codepoint)| {
14313 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14314 let is_boundary = index == text.len()
14315 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14316 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14317 if is_boundary {
14318 let chunk = &text[prev_index..index];
14319 prev_index = index;
14320 Some(chunk)
14321 } else {
14322 None
14323 }
14324 })
14325}
14326
14327pub trait RangeToAnchorExt: Sized {
14328 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14329
14330 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14331 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14332 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14333 }
14334}
14335
14336impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14337 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14338 let start_offset = self.start.to_offset(snapshot);
14339 let end_offset = self.end.to_offset(snapshot);
14340 if start_offset == end_offset {
14341 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14342 } else {
14343 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14344 }
14345 }
14346}
14347
14348pub trait RowExt {
14349 fn as_f32(&self) -> f32;
14350
14351 fn next_row(&self) -> Self;
14352
14353 fn previous_row(&self) -> Self;
14354
14355 fn minus(&self, other: Self) -> u32;
14356}
14357
14358impl RowExt for DisplayRow {
14359 fn as_f32(&self) -> f32 {
14360 self.0 as f32
14361 }
14362
14363 fn next_row(&self) -> Self {
14364 Self(self.0 + 1)
14365 }
14366
14367 fn previous_row(&self) -> Self {
14368 Self(self.0.saturating_sub(1))
14369 }
14370
14371 fn minus(&self, other: Self) -> u32 {
14372 self.0 - other.0
14373 }
14374}
14375
14376impl RowExt for MultiBufferRow {
14377 fn as_f32(&self) -> f32 {
14378 self.0 as f32
14379 }
14380
14381 fn next_row(&self) -> Self {
14382 Self(self.0 + 1)
14383 }
14384
14385 fn previous_row(&self) -> Self {
14386 Self(self.0.saturating_sub(1))
14387 }
14388
14389 fn minus(&self, other: Self) -> u32 {
14390 self.0 - other.0
14391 }
14392}
14393
14394trait RowRangeExt {
14395 type Row;
14396
14397 fn len(&self) -> usize;
14398
14399 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14400}
14401
14402impl RowRangeExt for Range<MultiBufferRow> {
14403 type Row = MultiBufferRow;
14404
14405 fn len(&self) -> usize {
14406 (self.end.0 - self.start.0) as usize
14407 }
14408
14409 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14410 (self.start.0..self.end.0).map(MultiBufferRow)
14411 }
14412}
14413
14414impl RowRangeExt for Range<DisplayRow> {
14415 type Row = DisplayRow;
14416
14417 fn len(&self) -> usize {
14418 (self.end.0 - self.start.0) as usize
14419 }
14420
14421 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14422 (self.start.0..self.end.0).map(DisplayRow)
14423 }
14424}
14425
14426fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14427 if hunk.diff_base_byte_range.is_empty() {
14428 DiffHunkStatus::Added
14429 } else if hunk.row_range.is_empty() {
14430 DiffHunkStatus::Removed
14431 } else {
14432 DiffHunkStatus::Modified
14433 }
14434}
14435
14436/// If select range has more than one line, we
14437/// just point the cursor to range.start.
14438fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14439 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14440 range
14441 } else {
14442 range.start..range.start
14443 }
14444}