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::{FormatTarget, 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, NotifyTaskExt};
165use workspace::{
166 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
167};
168use workspace::{Item as WorkspaceItem, 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<Editor>,
4463 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4464 use language::ToOffset as _;
4465
4466 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4467 menu
4468 } else {
4469 return None;
4470 };
4471
4472 let mat = completions_menu
4473 .matches
4474 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4475 let buffer_handle = completions_menu.buffer;
4476 let completions = completions_menu.completions.read();
4477 let completion = completions.get(mat.candidate_id)?;
4478 cx.stop_propagation();
4479
4480 let snippet;
4481 let text;
4482
4483 if completion.is_snippet() {
4484 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4485 text = snippet.as_ref().unwrap().text.clone();
4486 } else {
4487 snippet = None;
4488 text = completion.new_text.clone();
4489 };
4490 let selections = self.selections.all::<usize>(cx);
4491 let buffer = buffer_handle.read(cx);
4492 let old_range = completion.old_range.to_offset(buffer);
4493 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4494
4495 let newest_selection = self.selections.newest_anchor();
4496 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4497 return None;
4498 }
4499
4500 let lookbehind = newest_selection
4501 .start
4502 .text_anchor
4503 .to_offset(buffer)
4504 .saturating_sub(old_range.start);
4505 let lookahead = old_range
4506 .end
4507 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4508 let mut common_prefix_len = old_text
4509 .bytes()
4510 .zip(text.bytes())
4511 .take_while(|(a, b)| a == b)
4512 .count();
4513
4514 let snapshot = self.buffer.read(cx).snapshot(cx);
4515 let mut range_to_replace: Option<Range<isize>> = None;
4516 let mut ranges = Vec::new();
4517 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4518 for selection in &selections {
4519 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4520 let start = selection.start.saturating_sub(lookbehind);
4521 let end = selection.end + lookahead;
4522 if selection.id == newest_selection.id {
4523 range_to_replace = Some(
4524 ((start + common_prefix_len) as isize - selection.start as isize)
4525 ..(end as isize - selection.start as isize),
4526 );
4527 }
4528 ranges.push(start + common_prefix_len..end);
4529 } else {
4530 common_prefix_len = 0;
4531 ranges.clear();
4532 ranges.extend(selections.iter().map(|s| {
4533 if s.id == newest_selection.id {
4534 range_to_replace = Some(
4535 old_range.start.to_offset_utf16(&snapshot).0 as isize
4536 - selection.start as isize
4537 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4538 - selection.start as isize,
4539 );
4540 old_range.clone()
4541 } else {
4542 s.start..s.end
4543 }
4544 }));
4545 break;
4546 }
4547 if !self.linked_edit_ranges.is_empty() {
4548 let start_anchor = snapshot.anchor_before(selection.head());
4549 let end_anchor = snapshot.anchor_after(selection.tail());
4550 if let Some(ranges) = self
4551 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4552 {
4553 for (buffer, edits) in ranges {
4554 linked_edits.entry(buffer.clone()).or_default().extend(
4555 edits
4556 .into_iter()
4557 .map(|range| (range, text[common_prefix_len..].to_owned())),
4558 );
4559 }
4560 }
4561 }
4562 }
4563 let text = &text[common_prefix_len..];
4564
4565 cx.emit(EditorEvent::InputHandled {
4566 utf16_range_to_replace: range_to_replace,
4567 text: text.into(),
4568 });
4569
4570 self.transact(cx, |this, cx| {
4571 if let Some(mut snippet) = snippet {
4572 snippet.text = text.to_string();
4573 for tabstop in snippet.tabstops.iter_mut().flatten() {
4574 tabstop.start -= common_prefix_len as isize;
4575 tabstop.end -= common_prefix_len as isize;
4576 }
4577
4578 this.insert_snippet(&ranges, snippet, cx).log_err();
4579 } else {
4580 this.buffer.update(cx, |buffer, cx| {
4581 buffer.edit(
4582 ranges.iter().map(|range| (range.clone(), text)),
4583 this.autoindent_mode.clone(),
4584 cx,
4585 );
4586 });
4587 }
4588 for (buffer, edits) in linked_edits {
4589 buffer.update(cx, |buffer, cx| {
4590 let snapshot = buffer.snapshot();
4591 let edits = edits
4592 .into_iter()
4593 .map(|(range, text)| {
4594 use text::ToPoint as TP;
4595 let end_point = TP::to_point(&range.end, &snapshot);
4596 let start_point = TP::to_point(&range.start, &snapshot);
4597 (start_point..end_point, text)
4598 })
4599 .sorted_by_key(|(range, _)| range.start)
4600 .collect::<Vec<_>>();
4601 buffer.edit(edits, None, cx);
4602 })
4603 }
4604
4605 this.refresh_inline_completion(true, false, cx);
4606 });
4607
4608 let show_new_completions_on_confirm = completion
4609 .confirm
4610 .as_ref()
4611 .map_or(false, |confirm| confirm(intent, cx));
4612 if show_new_completions_on_confirm {
4613 self.show_completions(&ShowCompletions { trigger: None }, cx);
4614 }
4615
4616 let provider = self.completion_provider.as_ref()?;
4617 let apply_edits = provider.apply_additional_edits_for_completion(
4618 buffer_handle,
4619 completion.clone(),
4620 true,
4621 cx,
4622 );
4623
4624 let editor_settings = EditorSettings::get_global(cx);
4625 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4626 // After the code completion is finished, users often want to know what signatures are needed.
4627 // so we should automatically call signature_help
4628 self.show_signature_help(&ShowSignatureHelp, cx);
4629 }
4630
4631 Some(cx.foreground_executor().spawn(async move {
4632 apply_edits.await?;
4633 Ok(())
4634 }))
4635 }
4636
4637 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4638 let mut context_menu = self.context_menu.write();
4639 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4640 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4641 // Toggle if we're selecting the same one
4642 *context_menu = None;
4643 cx.notify();
4644 return;
4645 } else {
4646 // Otherwise, clear it and start a new one
4647 *context_menu = None;
4648 cx.notify();
4649 }
4650 }
4651 drop(context_menu);
4652 let snapshot = self.snapshot(cx);
4653 let deployed_from_indicator = action.deployed_from_indicator;
4654 let mut task = self.code_actions_task.take();
4655 let action = action.clone();
4656 cx.spawn(|editor, mut cx| async move {
4657 while let Some(prev_task) = task {
4658 prev_task.await.log_err();
4659 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4660 }
4661
4662 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4663 if editor.focus_handle.is_focused(cx) {
4664 let multibuffer_point = action
4665 .deployed_from_indicator
4666 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4667 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4668 let (buffer, buffer_row) = snapshot
4669 .buffer_snapshot
4670 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4671 .and_then(|(buffer_snapshot, range)| {
4672 editor
4673 .buffer
4674 .read(cx)
4675 .buffer(buffer_snapshot.remote_id())
4676 .map(|buffer| (buffer, range.start.row))
4677 })?;
4678 let (_, code_actions) = editor
4679 .available_code_actions
4680 .clone()
4681 .and_then(|(location, code_actions)| {
4682 let snapshot = location.buffer.read(cx).snapshot();
4683 let point_range = location.range.to_point(&snapshot);
4684 let point_range = point_range.start.row..=point_range.end.row;
4685 if point_range.contains(&buffer_row) {
4686 Some((location, code_actions))
4687 } else {
4688 None
4689 }
4690 })
4691 .unzip();
4692 let buffer_id = buffer.read(cx).remote_id();
4693 let tasks = editor
4694 .tasks
4695 .get(&(buffer_id, buffer_row))
4696 .map(|t| Arc::new(t.to_owned()));
4697 if tasks.is_none() && code_actions.is_none() {
4698 return None;
4699 }
4700
4701 editor.completion_tasks.clear();
4702 editor.discard_inline_completion(false, cx);
4703 let task_context =
4704 tasks
4705 .as_ref()
4706 .zip(editor.project.clone())
4707 .map(|(tasks, project)| {
4708 let position = Point::new(buffer_row, tasks.column);
4709 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4710 let location = Location {
4711 buffer: buffer.clone(),
4712 range: range_start..range_start,
4713 };
4714 // Fill in the environmental variables from the tree-sitter captures
4715 let mut captured_task_variables = TaskVariables::default();
4716 for (capture_name, value) in tasks.extra_variables.clone() {
4717 captured_task_variables.insert(
4718 task::VariableName::Custom(capture_name.into()),
4719 value.clone(),
4720 );
4721 }
4722 project.update(cx, |project, cx| {
4723 project.task_store().update(cx, |task_store, cx| {
4724 task_store.task_context_for_location(
4725 captured_task_variables,
4726 location,
4727 cx,
4728 )
4729 })
4730 })
4731 });
4732
4733 Some(cx.spawn(|editor, mut cx| async move {
4734 let task_context = match task_context {
4735 Some(task_context) => task_context.await,
4736 None => None,
4737 };
4738 let resolved_tasks =
4739 tasks.zip(task_context).map(|(tasks, task_context)| {
4740 Arc::new(ResolvedTasks {
4741 templates: tasks
4742 .templates
4743 .iter()
4744 .filter_map(|(kind, template)| {
4745 template
4746 .resolve_task(&kind.to_id_base(), &task_context)
4747 .map(|task| (kind.clone(), task))
4748 })
4749 .collect(),
4750 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4751 multibuffer_point.row,
4752 tasks.column,
4753 )),
4754 })
4755 });
4756 let spawn_straight_away = resolved_tasks
4757 .as_ref()
4758 .map_or(false, |tasks| tasks.templates.len() == 1)
4759 && code_actions
4760 .as_ref()
4761 .map_or(true, |actions| actions.is_empty());
4762 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4763 *editor.context_menu.write() =
4764 Some(ContextMenu::CodeActions(CodeActionsMenu {
4765 buffer,
4766 actions: CodeActionContents {
4767 tasks: resolved_tasks,
4768 actions: code_actions,
4769 },
4770 selected_item: Default::default(),
4771 scroll_handle: UniformListScrollHandle::default(),
4772 deployed_from_indicator,
4773 }));
4774 if spawn_straight_away {
4775 if let Some(task) = editor.confirm_code_action(
4776 &ConfirmCodeAction { item_ix: Some(0) },
4777 cx,
4778 ) {
4779 cx.notify();
4780 return task;
4781 }
4782 }
4783 cx.notify();
4784 Task::ready(Ok(()))
4785 }) {
4786 task.await
4787 } else {
4788 Ok(())
4789 }
4790 }))
4791 } else {
4792 Some(Task::ready(Ok(())))
4793 }
4794 })?;
4795 if let Some(task) = spawned_test_task {
4796 task.await?;
4797 }
4798
4799 Ok::<_, anyhow::Error>(())
4800 })
4801 .detach_and_log_err(cx);
4802 }
4803
4804 pub fn confirm_code_action(
4805 &mut self,
4806 action: &ConfirmCodeAction,
4807 cx: &mut ViewContext<Self>,
4808 ) -> Option<Task<Result<()>>> {
4809 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4810 menu
4811 } else {
4812 return None;
4813 };
4814 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4815 let action = actions_menu.actions.get(action_ix)?;
4816 let title = action.label();
4817 let buffer = actions_menu.buffer;
4818 let workspace = self.workspace()?;
4819
4820 match action {
4821 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4822 workspace.update(cx, |workspace, cx| {
4823 workspace::tasks::schedule_resolved_task(
4824 workspace,
4825 task_source_kind,
4826 resolved_task,
4827 false,
4828 cx,
4829 );
4830
4831 Some(Task::ready(Ok(())))
4832 })
4833 }
4834 CodeActionsItem::CodeAction {
4835 excerpt_id,
4836 action,
4837 provider,
4838 } => {
4839 let apply_code_action =
4840 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4841 let workspace = workspace.downgrade();
4842 Some(cx.spawn(|editor, cx| async move {
4843 let project_transaction = apply_code_action.await?;
4844 Self::open_project_transaction(
4845 &editor,
4846 workspace,
4847 project_transaction,
4848 title,
4849 cx,
4850 )
4851 .await
4852 }))
4853 }
4854 }
4855 }
4856
4857 pub async fn open_project_transaction(
4858 this: &WeakView<Editor>,
4859 workspace: WeakView<Workspace>,
4860 transaction: ProjectTransaction,
4861 title: String,
4862 mut cx: AsyncWindowContext,
4863 ) -> Result<()> {
4864 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4865 cx.update(|cx| {
4866 entries.sort_unstable_by_key(|(buffer, _)| {
4867 buffer.read(cx).file().map(|f| f.path().clone())
4868 });
4869 })?;
4870
4871 // If the project transaction's edits are all contained within this editor, then
4872 // avoid opening a new editor to display them.
4873
4874 if let Some((buffer, transaction)) = entries.first() {
4875 if entries.len() == 1 {
4876 let excerpt = this.update(&mut cx, |editor, cx| {
4877 editor
4878 .buffer()
4879 .read(cx)
4880 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4881 })?;
4882 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4883 if excerpted_buffer == *buffer {
4884 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4885 let excerpt_range = excerpt_range.to_offset(buffer);
4886 buffer
4887 .edited_ranges_for_transaction::<usize>(transaction)
4888 .all(|range| {
4889 excerpt_range.start <= range.start
4890 && excerpt_range.end >= range.end
4891 })
4892 })?;
4893
4894 if all_edits_within_excerpt {
4895 return Ok(());
4896 }
4897 }
4898 }
4899 }
4900 } else {
4901 return Ok(());
4902 }
4903
4904 let mut ranges_to_highlight = Vec::new();
4905 let excerpt_buffer = cx.new_model(|cx| {
4906 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4907 for (buffer_handle, transaction) in &entries {
4908 let buffer = buffer_handle.read(cx);
4909 ranges_to_highlight.extend(
4910 multibuffer.push_excerpts_with_context_lines(
4911 buffer_handle.clone(),
4912 buffer
4913 .edited_ranges_for_transaction::<usize>(transaction)
4914 .collect(),
4915 DEFAULT_MULTIBUFFER_CONTEXT,
4916 cx,
4917 ),
4918 );
4919 }
4920 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4921 multibuffer
4922 })?;
4923
4924 workspace.update(&mut cx, |workspace, cx| {
4925 let project = workspace.project().clone();
4926 let editor =
4927 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4928 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4929 editor.update(cx, |editor, cx| {
4930 editor.highlight_background::<Self>(
4931 &ranges_to_highlight,
4932 |theme| theme.editor_highlighted_line_background,
4933 cx,
4934 );
4935 });
4936 })?;
4937
4938 Ok(())
4939 }
4940
4941 pub fn clear_code_action_providers(&mut self) {
4942 self.code_action_providers.clear();
4943 self.available_code_actions.take();
4944 }
4945
4946 pub fn push_code_action_provider(
4947 &mut self,
4948 provider: Arc<dyn CodeActionProvider>,
4949 cx: &mut ViewContext<Self>,
4950 ) {
4951 self.code_action_providers.push(provider);
4952 self.refresh_code_actions(cx);
4953 }
4954
4955 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4956 let buffer = self.buffer.read(cx);
4957 let newest_selection = self.selections.newest_anchor().clone();
4958 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4959 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4960 if start_buffer != end_buffer {
4961 return None;
4962 }
4963
4964 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4965 cx.background_executor()
4966 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4967 .await;
4968
4969 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4970 let providers = this.code_action_providers.clone();
4971 let tasks = this
4972 .code_action_providers
4973 .iter()
4974 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4975 .collect::<Vec<_>>();
4976 (providers, tasks)
4977 })?;
4978
4979 let mut actions = Vec::new();
4980 for (provider, provider_actions) in
4981 providers.into_iter().zip(future::join_all(tasks).await)
4982 {
4983 if let Some(provider_actions) = provider_actions.log_err() {
4984 actions.extend(provider_actions.into_iter().map(|action| {
4985 AvailableCodeAction {
4986 excerpt_id: newest_selection.start.excerpt_id,
4987 action,
4988 provider: provider.clone(),
4989 }
4990 }));
4991 }
4992 }
4993
4994 this.update(&mut cx, |this, cx| {
4995 this.available_code_actions = if actions.is_empty() {
4996 None
4997 } else {
4998 Some((
4999 Location {
5000 buffer: start_buffer,
5001 range: start..end,
5002 },
5003 actions.into(),
5004 ))
5005 };
5006 cx.notify();
5007 })
5008 }));
5009 None
5010 }
5011
5012 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5013 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5014 self.show_git_blame_inline = false;
5015
5016 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5017 cx.background_executor().timer(delay).await;
5018
5019 this.update(&mut cx, |this, cx| {
5020 this.show_git_blame_inline = true;
5021 cx.notify();
5022 })
5023 .log_err();
5024 }));
5025 }
5026 }
5027
5028 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5029 if self.pending_rename.is_some() {
5030 return None;
5031 }
5032
5033 let provider = self.semantics_provider.clone()?;
5034 let buffer = self.buffer.read(cx);
5035 let newest_selection = self.selections.newest_anchor().clone();
5036 let cursor_position = newest_selection.head();
5037 let (cursor_buffer, cursor_buffer_position) =
5038 buffer.text_anchor_for_position(cursor_position, cx)?;
5039 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5040 if cursor_buffer != tail_buffer {
5041 return None;
5042 }
5043
5044 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5045 cx.background_executor()
5046 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5047 .await;
5048
5049 let highlights = if let Some(highlights) = cx
5050 .update(|cx| {
5051 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5052 })
5053 .ok()
5054 .flatten()
5055 {
5056 highlights.await.log_err()
5057 } else {
5058 None
5059 };
5060
5061 if let Some(highlights) = highlights {
5062 this.update(&mut cx, |this, cx| {
5063 if this.pending_rename.is_some() {
5064 return;
5065 }
5066
5067 let buffer_id = cursor_position.buffer_id;
5068 let buffer = this.buffer.read(cx);
5069 if !buffer
5070 .text_anchor_for_position(cursor_position, cx)
5071 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5072 {
5073 return;
5074 }
5075
5076 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5077 let mut write_ranges = Vec::new();
5078 let mut read_ranges = Vec::new();
5079 for highlight in highlights {
5080 for (excerpt_id, excerpt_range) in
5081 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5082 {
5083 let start = highlight
5084 .range
5085 .start
5086 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5087 let end = highlight
5088 .range
5089 .end
5090 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5091 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5092 continue;
5093 }
5094
5095 let range = Anchor {
5096 buffer_id,
5097 excerpt_id,
5098 text_anchor: start,
5099 }..Anchor {
5100 buffer_id,
5101 excerpt_id,
5102 text_anchor: end,
5103 };
5104 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5105 write_ranges.push(range);
5106 } else {
5107 read_ranges.push(range);
5108 }
5109 }
5110 }
5111
5112 this.highlight_background::<DocumentHighlightRead>(
5113 &read_ranges,
5114 |theme| theme.editor_document_highlight_read_background,
5115 cx,
5116 );
5117 this.highlight_background::<DocumentHighlightWrite>(
5118 &write_ranges,
5119 |theme| theme.editor_document_highlight_write_background,
5120 cx,
5121 );
5122 cx.notify();
5123 })
5124 .log_err();
5125 }
5126 }));
5127 None
5128 }
5129
5130 pub fn refresh_inline_completion(
5131 &mut self,
5132 debounce: bool,
5133 user_requested: bool,
5134 cx: &mut ViewContext<Self>,
5135 ) -> Option<()> {
5136 let provider = self.inline_completion_provider()?;
5137 let cursor = self.selections.newest_anchor().head();
5138 let (buffer, cursor_buffer_position) =
5139 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5140
5141 if !user_requested
5142 && (!self.enable_inline_completions
5143 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5144 {
5145 self.discard_inline_completion(false, cx);
5146 return None;
5147 }
5148
5149 self.update_visible_inline_completion(cx);
5150 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5151 Some(())
5152 }
5153
5154 fn cycle_inline_completion(
5155 &mut self,
5156 direction: Direction,
5157 cx: &mut ViewContext<Self>,
5158 ) -> Option<()> {
5159 let provider = self.inline_completion_provider()?;
5160 let cursor = self.selections.newest_anchor().head();
5161 let (buffer, cursor_buffer_position) =
5162 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5163 if !self.enable_inline_completions
5164 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5165 {
5166 return None;
5167 }
5168
5169 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5170 self.update_visible_inline_completion(cx);
5171
5172 Some(())
5173 }
5174
5175 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5176 if !self.has_active_inline_completion(cx) {
5177 self.refresh_inline_completion(false, true, cx);
5178 return;
5179 }
5180
5181 self.update_visible_inline_completion(cx);
5182 }
5183
5184 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5185 self.show_cursor_names(cx);
5186 }
5187
5188 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5189 self.show_cursor_names = true;
5190 cx.notify();
5191 cx.spawn(|this, mut cx| async move {
5192 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5193 this.update(&mut cx, |this, cx| {
5194 this.show_cursor_names = false;
5195 cx.notify()
5196 })
5197 .ok()
5198 })
5199 .detach();
5200 }
5201
5202 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5203 if self.has_active_inline_completion(cx) {
5204 self.cycle_inline_completion(Direction::Next, cx);
5205 } else {
5206 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5207 if is_copilot_disabled {
5208 cx.propagate();
5209 }
5210 }
5211 }
5212
5213 pub fn previous_inline_completion(
5214 &mut self,
5215 _: &PreviousInlineCompletion,
5216 cx: &mut ViewContext<Self>,
5217 ) {
5218 if self.has_active_inline_completion(cx) {
5219 self.cycle_inline_completion(Direction::Prev, cx);
5220 } else {
5221 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5222 if is_copilot_disabled {
5223 cx.propagate();
5224 }
5225 }
5226 }
5227
5228 pub fn accept_inline_completion(
5229 &mut self,
5230 _: &AcceptInlineCompletion,
5231 cx: &mut ViewContext<Self>,
5232 ) {
5233 let Some(completion) = self.take_active_inline_completion(cx) else {
5234 return;
5235 };
5236 if let Some(provider) = self.inline_completion_provider() {
5237 provider.accept(cx);
5238 }
5239
5240 cx.emit(EditorEvent::InputHandled {
5241 utf16_range_to_replace: None,
5242 text: completion.text.to_string().into(),
5243 });
5244
5245 if let Some(range) = completion.delete_range {
5246 self.change_selections(None, cx, |s| s.select_ranges([range]))
5247 }
5248 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5249 self.refresh_inline_completion(true, true, cx);
5250 cx.notify();
5251 }
5252
5253 pub fn accept_partial_inline_completion(
5254 &mut self,
5255 _: &AcceptPartialInlineCompletion,
5256 cx: &mut ViewContext<Self>,
5257 ) {
5258 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5259 if let Some(completion) = self.take_active_inline_completion(cx) {
5260 let mut partial_completion = completion
5261 .text
5262 .chars()
5263 .by_ref()
5264 .take_while(|c| c.is_alphabetic())
5265 .collect::<String>();
5266 if partial_completion.is_empty() {
5267 partial_completion = completion
5268 .text
5269 .chars()
5270 .by_ref()
5271 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5272 .collect::<String>();
5273 }
5274
5275 cx.emit(EditorEvent::InputHandled {
5276 utf16_range_to_replace: None,
5277 text: partial_completion.clone().into(),
5278 });
5279
5280 if let Some(range) = completion.delete_range {
5281 self.change_selections(None, cx, |s| s.select_ranges([range]))
5282 }
5283 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5284
5285 self.refresh_inline_completion(true, true, cx);
5286 cx.notify();
5287 }
5288 }
5289 }
5290
5291 fn discard_inline_completion(
5292 &mut self,
5293 should_report_inline_completion_event: bool,
5294 cx: &mut ViewContext<Self>,
5295 ) -> bool {
5296 if let Some(provider) = self.inline_completion_provider() {
5297 provider.discard(should_report_inline_completion_event, cx);
5298 }
5299
5300 self.take_active_inline_completion(cx).is_some()
5301 }
5302
5303 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5304 if let Some(completion) = self.active_inline_completion.as_ref() {
5305 let buffer = self.buffer.read(cx).read(cx);
5306 completion.position.is_valid(&buffer)
5307 } else {
5308 false
5309 }
5310 }
5311
5312 fn take_active_inline_completion(
5313 &mut self,
5314 cx: &mut ViewContext<Self>,
5315 ) -> Option<CompletionState> {
5316 let completion = self.active_inline_completion.take()?;
5317 let render_inlay_ids = completion.render_inlay_ids.clone();
5318 self.display_map.update(cx, |map, cx| {
5319 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5320 });
5321 let buffer = self.buffer.read(cx).read(cx);
5322
5323 if completion.position.is_valid(&buffer) {
5324 Some(completion)
5325 } else {
5326 None
5327 }
5328 }
5329
5330 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5331 let selection = self.selections.newest_anchor();
5332 let cursor = selection.head();
5333
5334 let excerpt_id = cursor.excerpt_id;
5335
5336 if self.context_menu.read().is_none()
5337 && self.completion_tasks.is_empty()
5338 && selection.start == selection.end
5339 {
5340 if let Some(provider) = self.inline_completion_provider() {
5341 if let Some((buffer, cursor_buffer_position)) =
5342 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5343 {
5344 if let Some(proposal) =
5345 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5346 {
5347 let mut to_remove = Vec::new();
5348 if let Some(completion) = self.active_inline_completion.take() {
5349 to_remove.extend(completion.render_inlay_ids.iter());
5350 }
5351
5352 let to_add = proposal
5353 .inlays
5354 .iter()
5355 .filter_map(|inlay| {
5356 let snapshot = self.buffer.read(cx).snapshot(cx);
5357 let id = post_inc(&mut self.next_inlay_id);
5358 match inlay {
5359 InlayProposal::Hint(position, hint) => {
5360 let position =
5361 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5362 Some(Inlay::hint(id, position, hint))
5363 }
5364 InlayProposal::Suggestion(position, text) => {
5365 let position =
5366 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5367 Some(Inlay::suggestion(id, position, text.clone()))
5368 }
5369 }
5370 })
5371 .collect_vec();
5372
5373 self.active_inline_completion = Some(CompletionState {
5374 position: cursor,
5375 text: proposal.text,
5376 delete_range: proposal.delete_range.and_then(|range| {
5377 let snapshot = self.buffer.read(cx).snapshot(cx);
5378 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5379 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5380 Some(start?..end?)
5381 }),
5382 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5383 });
5384
5385 self.display_map
5386 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5387
5388 cx.notify();
5389 return;
5390 }
5391 }
5392 }
5393 }
5394
5395 self.discard_inline_completion(false, cx);
5396 }
5397
5398 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5399 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5400 }
5401
5402 fn render_code_actions_indicator(
5403 &self,
5404 _style: &EditorStyle,
5405 row: DisplayRow,
5406 is_active: bool,
5407 cx: &mut ViewContext<Self>,
5408 ) -> Option<IconButton> {
5409 if self.available_code_actions.is_some() {
5410 Some(
5411 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5412 .shape(ui::IconButtonShape::Square)
5413 .icon_size(IconSize::XSmall)
5414 .icon_color(Color::Muted)
5415 .selected(is_active)
5416 .tooltip({
5417 let focus_handle = self.focus_handle.clone();
5418 move |cx| {
5419 Tooltip::for_action_in(
5420 "Toggle Code Actions",
5421 &ToggleCodeActions {
5422 deployed_from_indicator: None,
5423 },
5424 &focus_handle,
5425 cx,
5426 )
5427 }
5428 })
5429 .on_click(cx.listener(move |editor, _e, cx| {
5430 editor.focus(cx);
5431 editor.toggle_code_actions(
5432 &ToggleCodeActions {
5433 deployed_from_indicator: Some(row),
5434 },
5435 cx,
5436 );
5437 })),
5438 )
5439 } else {
5440 None
5441 }
5442 }
5443
5444 fn clear_tasks(&mut self) {
5445 self.tasks.clear()
5446 }
5447
5448 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5449 if self.tasks.insert(key, value).is_some() {
5450 // This case should hopefully be rare, but just in case...
5451 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5452 }
5453 }
5454
5455 fn render_run_indicator(
5456 &self,
5457 _style: &EditorStyle,
5458 is_active: bool,
5459 row: DisplayRow,
5460 cx: &mut ViewContext<Self>,
5461 ) -> IconButton {
5462 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5463 .shape(ui::IconButtonShape::Square)
5464 .icon_size(IconSize::XSmall)
5465 .icon_color(Color::Muted)
5466 .selected(is_active)
5467 .on_click(cx.listener(move |editor, _e, cx| {
5468 editor.focus(cx);
5469 editor.toggle_code_actions(
5470 &ToggleCodeActions {
5471 deployed_from_indicator: Some(row),
5472 },
5473 cx,
5474 );
5475 }))
5476 }
5477
5478 pub fn context_menu_visible(&self) -> bool {
5479 self.context_menu
5480 .read()
5481 .as_ref()
5482 .map_or(false, |menu| menu.visible())
5483 }
5484
5485 fn render_context_menu(
5486 &self,
5487 cursor_position: DisplayPoint,
5488 style: &EditorStyle,
5489 max_height: Pixels,
5490 cx: &mut ViewContext<Editor>,
5491 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5492 self.context_menu.read().as_ref().map(|menu| {
5493 menu.render(
5494 cursor_position,
5495 style,
5496 max_height,
5497 self.workspace.as_ref().map(|(w, _)| w.clone()),
5498 cx,
5499 )
5500 })
5501 }
5502
5503 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5504 cx.notify();
5505 self.completion_tasks.clear();
5506 let context_menu = self.context_menu.write().take();
5507 if context_menu.is_some() {
5508 self.update_visible_inline_completion(cx);
5509 }
5510 context_menu
5511 }
5512
5513 pub fn insert_snippet(
5514 &mut self,
5515 insertion_ranges: &[Range<usize>],
5516 snippet: Snippet,
5517 cx: &mut ViewContext<Self>,
5518 ) -> Result<()> {
5519 struct Tabstop<T> {
5520 is_end_tabstop: bool,
5521 ranges: Vec<Range<T>>,
5522 }
5523
5524 let tabstops = self.buffer.update(cx, |buffer, cx| {
5525 let snippet_text: Arc<str> = snippet.text.clone().into();
5526 buffer.edit(
5527 insertion_ranges
5528 .iter()
5529 .cloned()
5530 .map(|range| (range, snippet_text.clone())),
5531 Some(AutoindentMode::EachLine),
5532 cx,
5533 );
5534
5535 let snapshot = &*buffer.read(cx);
5536 let snippet = &snippet;
5537 snippet
5538 .tabstops
5539 .iter()
5540 .map(|tabstop| {
5541 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5542 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5543 });
5544 let mut tabstop_ranges = tabstop
5545 .iter()
5546 .flat_map(|tabstop_range| {
5547 let mut delta = 0_isize;
5548 insertion_ranges.iter().map(move |insertion_range| {
5549 let insertion_start = insertion_range.start as isize + delta;
5550 delta +=
5551 snippet.text.len() as isize - insertion_range.len() as isize;
5552
5553 let start = ((insertion_start + tabstop_range.start) as usize)
5554 .min(snapshot.len());
5555 let end = ((insertion_start + tabstop_range.end) as usize)
5556 .min(snapshot.len());
5557 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5558 })
5559 })
5560 .collect::<Vec<_>>();
5561 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5562
5563 Tabstop {
5564 is_end_tabstop,
5565 ranges: tabstop_ranges,
5566 }
5567 })
5568 .collect::<Vec<_>>()
5569 });
5570 if let Some(tabstop) = tabstops.first() {
5571 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5572 s.select_ranges(tabstop.ranges.iter().cloned());
5573 });
5574
5575 // If we're already at the last tabstop and it's at the end of the snippet,
5576 // we're done, we don't need to keep the state around.
5577 if !tabstop.is_end_tabstop {
5578 let ranges = tabstops
5579 .into_iter()
5580 .map(|tabstop| tabstop.ranges)
5581 .collect::<Vec<_>>();
5582 self.snippet_stack.push(SnippetState {
5583 active_index: 0,
5584 ranges,
5585 });
5586 }
5587
5588 // Check whether the just-entered snippet ends with an auto-closable bracket.
5589 if self.autoclose_regions.is_empty() {
5590 let snapshot = self.buffer.read(cx).snapshot(cx);
5591 for selection in &mut self.selections.all::<Point>(cx) {
5592 let selection_head = selection.head();
5593 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5594 continue;
5595 };
5596
5597 let mut bracket_pair = None;
5598 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5599 let prev_chars = snapshot
5600 .reversed_chars_at(selection_head)
5601 .collect::<String>();
5602 for (pair, enabled) in scope.brackets() {
5603 if enabled
5604 && pair.close
5605 && prev_chars.starts_with(pair.start.as_str())
5606 && next_chars.starts_with(pair.end.as_str())
5607 {
5608 bracket_pair = Some(pair.clone());
5609 break;
5610 }
5611 }
5612 if let Some(pair) = bracket_pair {
5613 let start = snapshot.anchor_after(selection_head);
5614 let end = snapshot.anchor_after(selection_head);
5615 self.autoclose_regions.push(AutocloseRegion {
5616 selection_id: selection.id,
5617 range: start..end,
5618 pair,
5619 });
5620 }
5621 }
5622 }
5623 }
5624 Ok(())
5625 }
5626
5627 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5628 self.move_to_snippet_tabstop(Bias::Right, cx)
5629 }
5630
5631 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5632 self.move_to_snippet_tabstop(Bias::Left, cx)
5633 }
5634
5635 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5636 if let Some(mut snippet) = self.snippet_stack.pop() {
5637 match bias {
5638 Bias::Left => {
5639 if snippet.active_index > 0 {
5640 snippet.active_index -= 1;
5641 } else {
5642 self.snippet_stack.push(snippet);
5643 return false;
5644 }
5645 }
5646 Bias::Right => {
5647 if snippet.active_index + 1 < snippet.ranges.len() {
5648 snippet.active_index += 1;
5649 } else {
5650 self.snippet_stack.push(snippet);
5651 return false;
5652 }
5653 }
5654 }
5655 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5656 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5657 s.select_anchor_ranges(current_ranges.iter().cloned())
5658 });
5659 // If snippet state is not at the last tabstop, push it back on the stack
5660 if snippet.active_index + 1 < snippet.ranges.len() {
5661 self.snippet_stack.push(snippet);
5662 }
5663 return true;
5664 }
5665 }
5666
5667 false
5668 }
5669
5670 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5671 self.transact(cx, |this, cx| {
5672 this.select_all(&SelectAll, cx);
5673 this.insert("", cx);
5674 });
5675 }
5676
5677 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5678 self.transact(cx, |this, cx| {
5679 this.select_autoclose_pair(cx);
5680 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5681 if !this.linked_edit_ranges.is_empty() {
5682 let selections = this.selections.all::<MultiBufferPoint>(cx);
5683 let snapshot = this.buffer.read(cx).snapshot(cx);
5684
5685 for selection in selections.iter() {
5686 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5687 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5688 if selection_start.buffer_id != selection_end.buffer_id {
5689 continue;
5690 }
5691 if let Some(ranges) =
5692 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5693 {
5694 for (buffer, entries) in ranges {
5695 linked_ranges.entry(buffer).or_default().extend(entries);
5696 }
5697 }
5698 }
5699 }
5700
5701 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5702 if !this.selections.line_mode {
5703 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5704 for selection in &mut selections {
5705 if selection.is_empty() {
5706 let old_head = selection.head();
5707 let mut new_head =
5708 movement::left(&display_map, old_head.to_display_point(&display_map))
5709 .to_point(&display_map);
5710 if let Some((buffer, line_buffer_range)) = display_map
5711 .buffer_snapshot
5712 .buffer_line_for_row(MultiBufferRow(old_head.row))
5713 {
5714 let indent_size =
5715 buffer.indent_size_for_line(line_buffer_range.start.row);
5716 let indent_len = match indent_size.kind {
5717 IndentKind::Space => {
5718 buffer.settings_at(line_buffer_range.start, cx).tab_size
5719 }
5720 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5721 };
5722 if old_head.column <= indent_size.len && old_head.column > 0 {
5723 let indent_len = indent_len.get();
5724 new_head = cmp::min(
5725 new_head,
5726 MultiBufferPoint::new(
5727 old_head.row,
5728 ((old_head.column - 1) / indent_len) * indent_len,
5729 ),
5730 );
5731 }
5732 }
5733
5734 selection.set_head(new_head, SelectionGoal::None);
5735 }
5736 }
5737 }
5738
5739 this.signature_help_state.set_backspace_pressed(true);
5740 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5741 this.insert("", cx);
5742 let empty_str: Arc<str> = Arc::from("");
5743 for (buffer, edits) in linked_ranges {
5744 let snapshot = buffer.read(cx).snapshot();
5745 use text::ToPoint as TP;
5746
5747 let edits = edits
5748 .into_iter()
5749 .map(|range| {
5750 let end_point = TP::to_point(&range.end, &snapshot);
5751 let mut start_point = TP::to_point(&range.start, &snapshot);
5752
5753 if end_point == start_point {
5754 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5755 .saturating_sub(1);
5756 start_point = TP::to_point(&offset, &snapshot);
5757 };
5758
5759 (start_point..end_point, empty_str.clone())
5760 })
5761 .sorted_by_key(|(range, _)| range.start)
5762 .collect::<Vec<_>>();
5763 buffer.update(cx, |this, cx| {
5764 this.edit(edits, None, cx);
5765 })
5766 }
5767 this.refresh_inline_completion(true, false, cx);
5768 linked_editing_ranges::refresh_linked_ranges(this, cx);
5769 });
5770 }
5771
5772 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5773 self.transact(cx, |this, cx| {
5774 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5775 let line_mode = s.line_mode;
5776 s.move_with(|map, selection| {
5777 if selection.is_empty() && !line_mode {
5778 let cursor = movement::right(map, selection.head());
5779 selection.end = cursor;
5780 selection.reversed = true;
5781 selection.goal = SelectionGoal::None;
5782 }
5783 })
5784 });
5785 this.insert("", cx);
5786 this.refresh_inline_completion(true, false, cx);
5787 });
5788 }
5789
5790 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5791 if self.move_to_prev_snippet_tabstop(cx) {
5792 return;
5793 }
5794
5795 self.outdent(&Outdent, cx);
5796 }
5797
5798 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5799 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5800 return;
5801 }
5802
5803 let mut selections = self.selections.all_adjusted(cx);
5804 let buffer = self.buffer.read(cx);
5805 let snapshot = buffer.snapshot(cx);
5806 let rows_iter = selections.iter().map(|s| s.head().row);
5807 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5808
5809 let mut edits = Vec::new();
5810 let mut prev_edited_row = 0;
5811 let mut row_delta = 0;
5812 for selection in &mut selections {
5813 if selection.start.row != prev_edited_row {
5814 row_delta = 0;
5815 }
5816 prev_edited_row = selection.end.row;
5817
5818 // If the selection is non-empty, then increase the indentation of the selected lines.
5819 if !selection.is_empty() {
5820 row_delta =
5821 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5822 continue;
5823 }
5824
5825 // If the selection is empty and the cursor is in the leading whitespace before the
5826 // suggested indentation, then auto-indent the line.
5827 let cursor = selection.head();
5828 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5829 if let Some(suggested_indent) =
5830 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5831 {
5832 if cursor.column < suggested_indent.len
5833 && cursor.column <= current_indent.len
5834 && current_indent.len <= suggested_indent.len
5835 {
5836 selection.start = Point::new(cursor.row, suggested_indent.len);
5837 selection.end = selection.start;
5838 if row_delta == 0 {
5839 edits.extend(Buffer::edit_for_indent_size_adjustment(
5840 cursor.row,
5841 current_indent,
5842 suggested_indent,
5843 ));
5844 row_delta = suggested_indent.len - current_indent.len;
5845 }
5846 continue;
5847 }
5848 }
5849
5850 // Otherwise, insert a hard or soft tab.
5851 let settings = buffer.settings_at(cursor, cx);
5852 let tab_size = if settings.hard_tabs {
5853 IndentSize::tab()
5854 } else {
5855 let tab_size = settings.tab_size.get();
5856 let char_column = snapshot
5857 .text_for_range(Point::new(cursor.row, 0)..cursor)
5858 .flat_map(str::chars)
5859 .count()
5860 + row_delta as usize;
5861 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5862 IndentSize::spaces(chars_to_next_tab_stop)
5863 };
5864 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5865 selection.end = selection.start;
5866 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5867 row_delta += tab_size.len;
5868 }
5869
5870 self.transact(cx, |this, cx| {
5871 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5872 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5873 this.refresh_inline_completion(true, false, cx);
5874 });
5875 }
5876
5877 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5878 if self.read_only(cx) {
5879 return;
5880 }
5881 let mut selections = self.selections.all::<Point>(cx);
5882 let mut prev_edited_row = 0;
5883 let mut row_delta = 0;
5884 let mut edits = Vec::new();
5885 let buffer = self.buffer.read(cx);
5886 let snapshot = buffer.snapshot(cx);
5887 for selection in &mut selections {
5888 if selection.start.row != prev_edited_row {
5889 row_delta = 0;
5890 }
5891 prev_edited_row = selection.end.row;
5892
5893 row_delta =
5894 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5895 }
5896
5897 self.transact(cx, |this, cx| {
5898 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5899 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5900 });
5901 }
5902
5903 fn indent_selection(
5904 buffer: &MultiBuffer,
5905 snapshot: &MultiBufferSnapshot,
5906 selection: &mut Selection<Point>,
5907 edits: &mut Vec<(Range<Point>, String)>,
5908 delta_for_start_row: u32,
5909 cx: &AppContext,
5910 ) -> u32 {
5911 let settings = buffer.settings_at(selection.start, cx);
5912 let tab_size = settings.tab_size.get();
5913 let indent_kind = if settings.hard_tabs {
5914 IndentKind::Tab
5915 } else {
5916 IndentKind::Space
5917 };
5918 let mut start_row = selection.start.row;
5919 let mut end_row = selection.end.row + 1;
5920
5921 // If a selection ends at the beginning of a line, don't indent
5922 // that last line.
5923 if selection.end.column == 0 && selection.end.row > selection.start.row {
5924 end_row -= 1;
5925 }
5926
5927 // Avoid re-indenting a row that has already been indented by a
5928 // previous selection, but still update this selection's column
5929 // to reflect that indentation.
5930 if delta_for_start_row > 0 {
5931 start_row += 1;
5932 selection.start.column += delta_for_start_row;
5933 if selection.end.row == selection.start.row {
5934 selection.end.column += delta_for_start_row;
5935 }
5936 }
5937
5938 let mut delta_for_end_row = 0;
5939 let has_multiple_rows = start_row + 1 != end_row;
5940 for row in start_row..end_row {
5941 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5942 let indent_delta = match (current_indent.kind, indent_kind) {
5943 (IndentKind::Space, IndentKind::Space) => {
5944 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5945 IndentSize::spaces(columns_to_next_tab_stop)
5946 }
5947 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5948 (_, IndentKind::Tab) => IndentSize::tab(),
5949 };
5950
5951 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5952 0
5953 } else {
5954 selection.start.column
5955 };
5956 let row_start = Point::new(row, start);
5957 edits.push((
5958 row_start..row_start,
5959 indent_delta.chars().collect::<String>(),
5960 ));
5961
5962 // Update this selection's endpoints to reflect the indentation.
5963 if row == selection.start.row {
5964 selection.start.column += indent_delta.len;
5965 }
5966 if row == selection.end.row {
5967 selection.end.column += indent_delta.len;
5968 delta_for_end_row = indent_delta.len;
5969 }
5970 }
5971
5972 if selection.start.row == selection.end.row {
5973 delta_for_start_row + delta_for_end_row
5974 } else {
5975 delta_for_end_row
5976 }
5977 }
5978
5979 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5980 if self.read_only(cx) {
5981 return;
5982 }
5983 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5984 let selections = self.selections.all::<Point>(cx);
5985 let mut deletion_ranges = Vec::new();
5986 let mut last_outdent = None;
5987 {
5988 let buffer = self.buffer.read(cx);
5989 let snapshot = buffer.snapshot(cx);
5990 for selection in &selections {
5991 let settings = buffer.settings_at(selection.start, cx);
5992 let tab_size = settings.tab_size.get();
5993 let mut rows = selection.spanned_rows(false, &display_map);
5994
5995 // Avoid re-outdenting a row that has already been outdented by a
5996 // previous selection.
5997 if let Some(last_row) = last_outdent {
5998 if last_row == rows.start {
5999 rows.start = rows.start.next_row();
6000 }
6001 }
6002 let has_multiple_rows = rows.len() > 1;
6003 for row in rows.iter_rows() {
6004 let indent_size = snapshot.indent_size_for_line(row);
6005 if indent_size.len > 0 {
6006 let deletion_len = match indent_size.kind {
6007 IndentKind::Space => {
6008 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6009 if columns_to_prev_tab_stop == 0 {
6010 tab_size
6011 } else {
6012 columns_to_prev_tab_stop
6013 }
6014 }
6015 IndentKind::Tab => 1,
6016 };
6017 let start = if has_multiple_rows
6018 || deletion_len > selection.start.column
6019 || indent_size.len < selection.start.column
6020 {
6021 0
6022 } else {
6023 selection.start.column - deletion_len
6024 };
6025 deletion_ranges.push(
6026 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6027 );
6028 last_outdent = Some(row);
6029 }
6030 }
6031 }
6032 }
6033
6034 self.transact(cx, |this, cx| {
6035 this.buffer.update(cx, |buffer, cx| {
6036 let empty_str: Arc<str> = Arc::default();
6037 buffer.edit(
6038 deletion_ranges
6039 .into_iter()
6040 .map(|range| (range, empty_str.clone())),
6041 None,
6042 cx,
6043 );
6044 });
6045 let selections = this.selections.all::<usize>(cx);
6046 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6047 });
6048 }
6049
6050 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6051 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6052 let selections = self.selections.all::<Point>(cx);
6053
6054 let mut new_cursors = Vec::new();
6055 let mut edit_ranges = Vec::new();
6056 let mut selections = selections.iter().peekable();
6057 while let Some(selection) = selections.next() {
6058 let mut rows = selection.spanned_rows(false, &display_map);
6059 let goal_display_column = selection.head().to_display_point(&display_map).column();
6060
6061 // Accumulate contiguous regions of rows that we want to delete.
6062 while let Some(next_selection) = selections.peek() {
6063 let next_rows = next_selection.spanned_rows(false, &display_map);
6064 if next_rows.start <= rows.end {
6065 rows.end = next_rows.end;
6066 selections.next().unwrap();
6067 } else {
6068 break;
6069 }
6070 }
6071
6072 let buffer = &display_map.buffer_snapshot;
6073 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6074 let edit_end;
6075 let cursor_buffer_row;
6076 if buffer.max_point().row >= rows.end.0 {
6077 // If there's a line after the range, delete the \n from the end of the row range
6078 // and position the cursor on the next line.
6079 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6080 cursor_buffer_row = rows.end;
6081 } else {
6082 // If there isn't a line after the range, delete the \n from the line before the
6083 // start of the row range and position the cursor there.
6084 edit_start = edit_start.saturating_sub(1);
6085 edit_end = buffer.len();
6086 cursor_buffer_row = rows.start.previous_row();
6087 }
6088
6089 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6090 *cursor.column_mut() =
6091 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6092
6093 new_cursors.push((
6094 selection.id,
6095 buffer.anchor_after(cursor.to_point(&display_map)),
6096 ));
6097 edit_ranges.push(edit_start..edit_end);
6098 }
6099
6100 self.transact(cx, |this, cx| {
6101 let buffer = this.buffer.update(cx, |buffer, cx| {
6102 let empty_str: Arc<str> = Arc::default();
6103 buffer.edit(
6104 edit_ranges
6105 .into_iter()
6106 .map(|range| (range, empty_str.clone())),
6107 None,
6108 cx,
6109 );
6110 buffer.snapshot(cx)
6111 });
6112 let new_selections = new_cursors
6113 .into_iter()
6114 .map(|(id, cursor)| {
6115 let cursor = cursor.to_point(&buffer);
6116 Selection {
6117 id,
6118 start: cursor,
6119 end: cursor,
6120 reversed: false,
6121 goal: SelectionGoal::None,
6122 }
6123 })
6124 .collect();
6125
6126 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6127 s.select(new_selections);
6128 });
6129 });
6130 }
6131
6132 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6133 if self.read_only(cx) {
6134 return;
6135 }
6136 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6137 for selection in self.selections.all::<Point>(cx) {
6138 let start = MultiBufferRow(selection.start.row);
6139 let end = if selection.start.row == selection.end.row {
6140 MultiBufferRow(selection.start.row + 1)
6141 } else {
6142 MultiBufferRow(selection.end.row)
6143 };
6144
6145 if let Some(last_row_range) = row_ranges.last_mut() {
6146 if start <= last_row_range.end {
6147 last_row_range.end = end;
6148 continue;
6149 }
6150 }
6151 row_ranges.push(start..end);
6152 }
6153
6154 let snapshot = self.buffer.read(cx).snapshot(cx);
6155 let mut cursor_positions = Vec::new();
6156 for row_range in &row_ranges {
6157 let anchor = snapshot.anchor_before(Point::new(
6158 row_range.end.previous_row().0,
6159 snapshot.line_len(row_range.end.previous_row()),
6160 ));
6161 cursor_positions.push(anchor..anchor);
6162 }
6163
6164 self.transact(cx, |this, cx| {
6165 for row_range in row_ranges.into_iter().rev() {
6166 for row in row_range.iter_rows().rev() {
6167 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6168 let next_line_row = row.next_row();
6169 let indent = snapshot.indent_size_for_line(next_line_row);
6170 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6171
6172 let replace = if snapshot.line_len(next_line_row) > indent.len {
6173 " "
6174 } else {
6175 ""
6176 };
6177
6178 this.buffer.update(cx, |buffer, cx| {
6179 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6180 });
6181 }
6182 }
6183
6184 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6185 s.select_anchor_ranges(cursor_positions)
6186 });
6187 });
6188 }
6189
6190 pub fn sort_lines_case_sensitive(
6191 &mut self,
6192 _: &SortLinesCaseSensitive,
6193 cx: &mut ViewContext<Self>,
6194 ) {
6195 self.manipulate_lines(cx, |lines| lines.sort())
6196 }
6197
6198 pub fn sort_lines_case_insensitive(
6199 &mut self,
6200 _: &SortLinesCaseInsensitive,
6201 cx: &mut ViewContext<Self>,
6202 ) {
6203 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6204 }
6205
6206 pub fn unique_lines_case_insensitive(
6207 &mut self,
6208 _: &UniqueLinesCaseInsensitive,
6209 cx: &mut ViewContext<Self>,
6210 ) {
6211 self.manipulate_lines(cx, |lines| {
6212 let mut seen = HashSet::default();
6213 lines.retain(|line| seen.insert(line.to_lowercase()));
6214 })
6215 }
6216
6217 pub fn unique_lines_case_sensitive(
6218 &mut self,
6219 _: &UniqueLinesCaseSensitive,
6220 cx: &mut ViewContext<Self>,
6221 ) {
6222 self.manipulate_lines(cx, |lines| {
6223 let mut seen = HashSet::default();
6224 lines.retain(|line| seen.insert(*line));
6225 })
6226 }
6227
6228 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6229 let mut revert_changes = HashMap::default();
6230 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6231 for hunk in hunks_for_rows(
6232 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6233 &multi_buffer_snapshot,
6234 ) {
6235 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6236 }
6237 if !revert_changes.is_empty() {
6238 self.transact(cx, |editor, cx| {
6239 editor.revert(revert_changes, cx);
6240 });
6241 }
6242 }
6243
6244 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6245 let Some(project) = self.project.clone() else {
6246 return;
6247 };
6248 self.reload(project, cx).detach_and_notify_err(cx);
6249 }
6250
6251 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6252 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6253 if !revert_changes.is_empty() {
6254 self.transact(cx, |editor, cx| {
6255 editor.revert(revert_changes, cx);
6256 });
6257 }
6258 }
6259
6260 fn apply_selected_diff_hunks(&mut self, _: &ApplyDiffHunk, cx: &mut ViewContext<Self>) {
6261 let snapshot = self.buffer.read(cx).snapshot(cx);
6262 let hunks = hunks_for_selections(&snapshot, &self.selections.disjoint_anchors());
6263 let mut ranges_by_buffer = HashMap::default();
6264 self.transact(cx, |editor, cx| {
6265 for hunk in hunks {
6266 if let Some(buffer) = editor.buffer.read(cx).buffer(hunk.buffer_id) {
6267 ranges_by_buffer
6268 .entry(buffer.clone())
6269 .or_insert_with(Vec::new)
6270 .push(hunk.buffer_range.to_offset(buffer.read(cx)));
6271 }
6272 }
6273
6274 for (buffer, ranges) in ranges_by_buffer {
6275 buffer.update(cx, |buffer, cx| {
6276 buffer.merge_into_base(ranges, cx);
6277 });
6278 }
6279 });
6280 }
6281
6282 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6283 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6284 let project_path = buffer.read(cx).project_path(cx)?;
6285 let project = self.project.as_ref()?.read(cx);
6286 let entry = project.entry_for_path(&project_path, cx)?;
6287 let abs_path = project.absolute_path(&project_path, cx)?;
6288 let parent = if entry.is_symlink {
6289 abs_path.canonicalize().ok()?
6290 } else {
6291 abs_path
6292 }
6293 .parent()?
6294 .to_path_buf();
6295 Some(parent)
6296 }) {
6297 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6298 }
6299 }
6300
6301 fn gather_revert_changes(
6302 &mut self,
6303 selections: &[Selection<Anchor>],
6304 cx: &mut ViewContext<'_, Editor>,
6305 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6306 let mut revert_changes = HashMap::default();
6307 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6308 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6309 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6310 }
6311 revert_changes
6312 }
6313
6314 pub fn prepare_revert_change(
6315 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6316 multi_buffer: &Model<MultiBuffer>,
6317 hunk: &MultiBufferDiffHunk,
6318 cx: &AppContext,
6319 ) -> Option<()> {
6320 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6321 let buffer = buffer.read(cx);
6322 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6323 let buffer_snapshot = buffer.snapshot();
6324 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6325 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6326 probe
6327 .0
6328 .start
6329 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6330 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6331 }) {
6332 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6333 Some(())
6334 } else {
6335 None
6336 }
6337 }
6338
6339 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6340 self.manipulate_lines(cx, |lines| lines.reverse())
6341 }
6342
6343 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6344 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6345 }
6346
6347 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6348 where
6349 Fn: FnMut(&mut Vec<&str>),
6350 {
6351 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6352 let buffer = self.buffer.read(cx).snapshot(cx);
6353
6354 let mut edits = Vec::new();
6355
6356 let selections = self.selections.all::<Point>(cx);
6357 let mut selections = selections.iter().peekable();
6358 let mut contiguous_row_selections = Vec::new();
6359 let mut new_selections = Vec::new();
6360 let mut added_lines = 0;
6361 let mut removed_lines = 0;
6362
6363 while let Some(selection) = selections.next() {
6364 let (start_row, end_row) = consume_contiguous_rows(
6365 &mut contiguous_row_selections,
6366 selection,
6367 &display_map,
6368 &mut selections,
6369 );
6370
6371 let start_point = Point::new(start_row.0, 0);
6372 let end_point = Point::new(
6373 end_row.previous_row().0,
6374 buffer.line_len(end_row.previous_row()),
6375 );
6376 let text = buffer
6377 .text_for_range(start_point..end_point)
6378 .collect::<String>();
6379
6380 let mut lines = text.split('\n').collect_vec();
6381
6382 let lines_before = lines.len();
6383 callback(&mut lines);
6384 let lines_after = lines.len();
6385
6386 edits.push((start_point..end_point, lines.join("\n")));
6387
6388 // Selections must change based on added and removed line count
6389 let start_row =
6390 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6391 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6392 new_selections.push(Selection {
6393 id: selection.id,
6394 start: start_row,
6395 end: end_row,
6396 goal: SelectionGoal::None,
6397 reversed: selection.reversed,
6398 });
6399
6400 if lines_after > lines_before {
6401 added_lines += lines_after - lines_before;
6402 } else if lines_before > lines_after {
6403 removed_lines += lines_before - lines_after;
6404 }
6405 }
6406
6407 self.transact(cx, |this, cx| {
6408 let buffer = this.buffer.update(cx, |buffer, cx| {
6409 buffer.edit(edits, None, cx);
6410 buffer.snapshot(cx)
6411 });
6412
6413 // Recalculate offsets on newly edited buffer
6414 let new_selections = new_selections
6415 .iter()
6416 .map(|s| {
6417 let start_point = Point::new(s.start.0, 0);
6418 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6419 Selection {
6420 id: s.id,
6421 start: buffer.point_to_offset(start_point),
6422 end: buffer.point_to_offset(end_point),
6423 goal: s.goal,
6424 reversed: s.reversed,
6425 }
6426 })
6427 .collect();
6428
6429 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6430 s.select(new_selections);
6431 });
6432
6433 this.request_autoscroll(Autoscroll::fit(), cx);
6434 });
6435 }
6436
6437 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6438 self.manipulate_text(cx, |text| text.to_uppercase())
6439 }
6440
6441 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6442 self.manipulate_text(cx, |text| text.to_lowercase())
6443 }
6444
6445 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6446 self.manipulate_text(cx, |text| {
6447 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6448 // https://github.com/rutrum/convert-case/issues/16
6449 text.split('\n')
6450 .map(|line| line.to_case(Case::Title))
6451 .join("\n")
6452 })
6453 }
6454
6455 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6456 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6457 }
6458
6459 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6460 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6461 }
6462
6463 pub fn convert_to_upper_camel_case(
6464 &mut self,
6465 _: &ConvertToUpperCamelCase,
6466 cx: &mut ViewContext<Self>,
6467 ) {
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::UpperCamel))
6473 .join("\n")
6474 })
6475 }
6476
6477 pub fn convert_to_lower_camel_case(
6478 &mut self,
6479 _: &ConvertToLowerCamelCase,
6480 cx: &mut ViewContext<Self>,
6481 ) {
6482 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6483 }
6484
6485 pub fn convert_to_opposite_case(
6486 &mut self,
6487 _: &ConvertToOppositeCase,
6488 cx: &mut ViewContext<Self>,
6489 ) {
6490 self.manipulate_text(cx, |text| {
6491 text.chars()
6492 .fold(String::with_capacity(text.len()), |mut t, c| {
6493 if c.is_uppercase() {
6494 t.extend(c.to_lowercase());
6495 } else {
6496 t.extend(c.to_uppercase());
6497 }
6498 t
6499 })
6500 })
6501 }
6502
6503 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6504 where
6505 Fn: FnMut(&str) -> String,
6506 {
6507 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6508 let buffer = self.buffer.read(cx).snapshot(cx);
6509
6510 let mut new_selections = Vec::new();
6511 let mut edits = Vec::new();
6512 let mut selection_adjustment = 0i32;
6513
6514 for selection in self.selections.all::<usize>(cx) {
6515 let selection_is_empty = selection.is_empty();
6516
6517 let (start, end) = if selection_is_empty {
6518 let word_range = movement::surrounding_word(
6519 &display_map,
6520 selection.start.to_display_point(&display_map),
6521 );
6522 let start = word_range.start.to_offset(&display_map, Bias::Left);
6523 let end = word_range.end.to_offset(&display_map, Bias::Left);
6524 (start, end)
6525 } else {
6526 (selection.start, selection.end)
6527 };
6528
6529 let text = buffer.text_for_range(start..end).collect::<String>();
6530 let old_length = text.len() as i32;
6531 let text = callback(&text);
6532
6533 new_selections.push(Selection {
6534 start: (start as i32 - selection_adjustment) as usize,
6535 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6536 goal: SelectionGoal::None,
6537 ..selection
6538 });
6539
6540 selection_adjustment += old_length - text.len() as i32;
6541
6542 edits.push((start..end, text));
6543 }
6544
6545 self.transact(cx, |this, cx| {
6546 this.buffer.update(cx, |buffer, cx| {
6547 buffer.edit(edits, None, cx);
6548 });
6549
6550 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6551 s.select(new_selections);
6552 });
6553
6554 this.request_autoscroll(Autoscroll::fit(), cx);
6555 });
6556 }
6557
6558 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6559 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6560 let buffer = &display_map.buffer_snapshot;
6561 let selections = self.selections.all::<Point>(cx);
6562
6563 let mut edits = Vec::new();
6564 let mut selections_iter = selections.iter().peekable();
6565 while let Some(selection) = selections_iter.next() {
6566 // Avoid duplicating the same lines twice.
6567 let mut rows = selection.spanned_rows(false, &display_map);
6568
6569 while let Some(next_selection) = selections_iter.peek() {
6570 let next_rows = next_selection.spanned_rows(false, &display_map);
6571 if next_rows.start < rows.end {
6572 rows.end = next_rows.end;
6573 selections_iter.next().unwrap();
6574 } else {
6575 break;
6576 }
6577 }
6578
6579 // Copy the text from the selected row region and splice it either at the start
6580 // or end of the region.
6581 let start = Point::new(rows.start.0, 0);
6582 let end = Point::new(
6583 rows.end.previous_row().0,
6584 buffer.line_len(rows.end.previous_row()),
6585 );
6586 let text = buffer
6587 .text_for_range(start..end)
6588 .chain(Some("\n"))
6589 .collect::<String>();
6590 let insert_location = if upwards {
6591 Point::new(rows.end.0, 0)
6592 } else {
6593 start
6594 };
6595 edits.push((insert_location..insert_location, text));
6596 }
6597
6598 self.transact(cx, |this, cx| {
6599 this.buffer.update(cx, |buffer, cx| {
6600 buffer.edit(edits, None, cx);
6601 });
6602
6603 this.request_autoscroll(Autoscroll::fit(), cx);
6604 });
6605 }
6606
6607 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6608 self.duplicate_line(true, cx);
6609 }
6610
6611 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6612 self.duplicate_line(false, cx);
6613 }
6614
6615 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6616 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6617 let buffer = self.buffer.read(cx).snapshot(cx);
6618
6619 let mut edits = Vec::new();
6620 let mut unfold_ranges = Vec::new();
6621 let mut refold_ranges = Vec::new();
6622
6623 let selections = self.selections.all::<Point>(cx);
6624 let mut selections = selections.iter().peekable();
6625 let mut contiguous_row_selections = Vec::new();
6626 let mut new_selections = Vec::new();
6627
6628 while let Some(selection) = selections.next() {
6629 // Find all the selections that span a contiguous row range
6630 let (start_row, end_row) = consume_contiguous_rows(
6631 &mut contiguous_row_selections,
6632 selection,
6633 &display_map,
6634 &mut selections,
6635 );
6636
6637 // Move the text spanned by the row range to be before the line preceding the row range
6638 if start_row.0 > 0 {
6639 let range_to_move = Point::new(
6640 start_row.previous_row().0,
6641 buffer.line_len(start_row.previous_row()),
6642 )
6643 ..Point::new(
6644 end_row.previous_row().0,
6645 buffer.line_len(end_row.previous_row()),
6646 );
6647 let insertion_point = display_map
6648 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6649 .0;
6650
6651 // Don't move lines across excerpts
6652 if buffer
6653 .excerpt_boundaries_in_range((
6654 Bound::Excluded(insertion_point),
6655 Bound::Included(range_to_move.end),
6656 ))
6657 .next()
6658 .is_none()
6659 {
6660 let text = buffer
6661 .text_for_range(range_to_move.clone())
6662 .flat_map(|s| s.chars())
6663 .skip(1)
6664 .chain(['\n'])
6665 .collect::<String>();
6666
6667 edits.push((
6668 buffer.anchor_after(range_to_move.start)
6669 ..buffer.anchor_before(range_to_move.end),
6670 String::new(),
6671 ));
6672 let insertion_anchor = buffer.anchor_after(insertion_point);
6673 edits.push((insertion_anchor..insertion_anchor, text));
6674
6675 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6676
6677 // Move selections up
6678 new_selections.extend(contiguous_row_selections.drain(..).map(
6679 |mut selection| {
6680 selection.start.row -= row_delta;
6681 selection.end.row -= row_delta;
6682 selection
6683 },
6684 ));
6685
6686 // Move folds up
6687 unfold_ranges.push(range_to_move.clone());
6688 for fold in display_map.folds_in_range(
6689 buffer.anchor_before(range_to_move.start)
6690 ..buffer.anchor_after(range_to_move.end),
6691 ) {
6692 let mut start = fold.range.start.to_point(&buffer);
6693 let mut end = fold.range.end.to_point(&buffer);
6694 start.row -= row_delta;
6695 end.row -= row_delta;
6696 refold_ranges.push((start..end, fold.placeholder.clone()));
6697 }
6698 }
6699 }
6700
6701 // If we didn't move line(s), preserve the existing selections
6702 new_selections.append(&mut contiguous_row_selections);
6703 }
6704
6705 self.transact(cx, |this, cx| {
6706 this.unfold_ranges(unfold_ranges, true, true, cx);
6707 this.buffer.update(cx, |buffer, cx| {
6708 for (range, text) in edits {
6709 buffer.edit([(range, text)], None, cx);
6710 }
6711 });
6712 this.fold_ranges(refold_ranges, true, cx);
6713 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6714 s.select(new_selections);
6715 })
6716 });
6717 }
6718
6719 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6720 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6721 let buffer = self.buffer.read(cx).snapshot(cx);
6722
6723 let mut edits = Vec::new();
6724 let mut unfold_ranges = Vec::new();
6725 let mut refold_ranges = Vec::new();
6726
6727 let selections = self.selections.all::<Point>(cx);
6728 let mut selections = selections.iter().peekable();
6729 let mut contiguous_row_selections = Vec::new();
6730 let mut new_selections = Vec::new();
6731
6732 while let Some(selection) = selections.next() {
6733 // Find all the selections that span a contiguous row range
6734 let (start_row, end_row) = consume_contiguous_rows(
6735 &mut contiguous_row_selections,
6736 selection,
6737 &display_map,
6738 &mut selections,
6739 );
6740
6741 // Move the text spanned by the row range to be after the last line of the row range
6742 if end_row.0 <= buffer.max_point().row {
6743 let range_to_move =
6744 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6745 let insertion_point = display_map
6746 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6747 .0;
6748
6749 // Don't move lines across excerpt boundaries
6750 if buffer
6751 .excerpt_boundaries_in_range((
6752 Bound::Excluded(range_to_move.start),
6753 Bound::Included(insertion_point),
6754 ))
6755 .next()
6756 .is_none()
6757 {
6758 let mut text = String::from("\n");
6759 text.extend(buffer.text_for_range(range_to_move.clone()));
6760 text.pop(); // Drop trailing newline
6761 edits.push((
6762 buffer.anchor_after(range_to_move.start)
6763 ..buffer.anchor_before(range_to_move.end),
6764 String::new(),
6765 ));
6766 let insertion_anchor = buffer.anchor_after(insertion_point);
6767 edits.push((insertion_anchor..insertion_anchor, text));
6768
6769 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6770
6771 // Move selections down
6772 new_selections.extend(contiguous_row_selections.drain(..).map(
6773 |mut selection| {
6774 selection.start.row += row_delta;
6775 selection.end.row += row_delta;
6776 selection
6777 },
6778 ));
6779
6780 // Move folds down
6781 unfold_ranges.push(range_to_move.clone());
6782 for fold in display_map.folds_in_range(
6783 buffer.anchor_before(range_to_move.start)
6784 ..buffer.anchor_after(range_to_move.end),
6785 ) {
6786 let mut start = fold.range.start.to_point(&buffer);
6787 let mut end = fold.range.end.to_point(&buffer);
6788 start.row += row_delta;
6789 end.row += row_delta;
6790 refold_ranges.push((start..end, fold.placeholder.clone()));
6791 }
6792 }
6793 }
6794
6795 // If we didn't move line(s), preserve the existing selections
6796 new_selections.append(&mut contiguous_row_selections);
6797 }
6798
6799 self.transact(cx, |this, cx| {
6800 this.unfold_ranges(unfold_ranges, true, true, cx);
6801 this.buffer.update(cx, |buffer, cx| {
6802 for (range, text) in edits {
6803 buffer.edit([(range, text)], None, cx);
6804 }
6805 });
6806 this.fold_ranges(refold_ranges, true, cx);
6807 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6808 });
6809 }
6810
6811 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6812 let text_layout_details = &self.text_layout_details(cx);
6813 self.transact(cx, |this, cx| {
6814 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6815 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6816 let line_mode = s.line_mode;
6817 s.move_with(|display_map, selection| {
6818 if !selection.is_empty() || line_mode {
6819 return;
6820 }
6821
6822 let mut head = selection.head();
6823 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6824 if head.column() == display_map.line_len(head.row()) {
6825 transpose_offset = display_map
6826 .buffer_snapshot
6827 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6828 }
6829
6830 if transpose_offset == 0 {
6831 return;
6832 }
6833
6834 *head.column_mut() += 1;
6835 head = display_map.clip_point(head, Bias::Right);
6836 let goal = SelectionGoal::HorizontalPosition(
6837 display_map
6838 .x_for_display_point(head, text_layout_details)
6839 .into(),
6840 );
6841 selection.collapse_to(head, goal);
6842
6843 let transpose_start = display_map
6844 .buffer_snapshot
6845 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6846 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6847 let transpose_end = display_map
6848 .buffer_snapshot
6849 .clip_offset(transpose_offset + 1, Bias::Right);
6850 if let Some(ch) =
6851 display_map.buffer_snapshot.chars_at(transpose_start).next()
6852 {
6853 edits.push((transpose_start..transpose_offset, String::new()));
6854 edits.push((transpose_end..transpose_end, ch.to_string()));
6855 }
6856 }
6857 });
6858 edits
6859 });
6860 this.buffer
6861 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6862 let selections = this.selections.all::<usize>(cx);
6863 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6864 s.select(selections);
6865 });
6866 });
6867 }
6868
6869 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6870 self.rewrap_impl(true, cx)
6871 }
6872
6873 pub fn rewrap_impl(&mut self, only_text: bool, cx: &mut ViewContext<Self>) {
6874 let buffer = self.buffer.read(cx).snapshot(cx);
6875 let selections = self.selections.all::<Point>(cx);
6876 let mut selections = selections.iter().peekable();
6877
6878 let mut edits = Vec::new();
6879 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6880
6881 while let Some(selection) = selections.next() {
6882 let mut start_row = selection.start.row;
6883 let mut end_row = selection.end.row;
6884
6885 // Skip selections that overlap with a range that has already been rewrapped.
6886 let selection_range = start_row..end_row;
6887 if rewrapped_row_ranges
6888 .iter()
6889 .any(|range| range.overlaps(&selection_range))
6890 {
6891 continue;
6892 }
6893
6894 let mut should_rewrap = !only_text;
6895
6896 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6897 match language_scope.language_name().0.as_ref() {
6898 "Markdown" | "Plain Text" => {
6899 should_rewrap = true;
6900 }
6901 _ => {}
6902 }
6903 }
6904
6905 // Since not all lines in the selection may be at the same indent
6906 // level, choose the indent size that is the most common between all
6907 // of the lines.
6908 //
6909 // If there is a tie, we use the deepest indent.
6910 let (indent_size, indent_end) = {
6911 let mut indent_size_occurrences = HashMap::default();
6912 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6913
6914 for row in start_row..=end_row {
6915 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6916 rows_by_indent_size.entry(indent).or_default().push(row);
6917 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6918 }
6919
6920 let indent_size = indent_size_occurrences
6921 .into_iter()
6922 .max_by_key(|(indent, count)| (*count, indent.len))
6923 .map(|(indent, _)| indent)
6924 .unwrap_or_default();
6925 let row = rows_by_indent_size[&indent_size][0];
6926 let indent_end = Point::new(row, indent_size.len);
6927
6928 (indent_size, indent_end)
6929 };
6930
6931 let mut line_prefix = indent_size.chars().collect::<String>();
6932
6933 if let Some(comment_prefix) =
6934 buffer
6935 .language_scope_at(selection.head())
6936 .and_then(|language| {
6937 language
6938 .line_comment_prefixes()
6939 .iter()
6940 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6941 .cloned()
6942 })
6943 {
6944 line_prefix.push_str(&comment_prefix);
6945 should_rewrap = true;
6946 }
6947
6948 if selection.is_empty() {
6949 'expand_upwards: while start_row > 0 {
6950 let prev_row = start_row - 1;
6951 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6952 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6953 {
6954 start_row = prev_row;
6955 } else {
6956 break 'expand_upwards;
6957 }
6958 }
6959
6960 'expand_downwards: while end_row < buffer.max_point().row {
6961 let next_row = end_row + 1;
6962 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6963 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6964 {
6965 end_row = next_row;
6966 } else {
6967 break 'expand_downwards;
6968 }
6969 }
6970 }
6971
6972 if !should_rewrap {
6973 continue;
6974 }
6975
6976 let start = Point::new(start_row, 0);
6977 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6978 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6979 let Some(lines_without_prefixes) = selection_text
6980 .lines()
6981 .map(|line| {
6982 line.strip_prefix(&line_prefix)
6983 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6984 .ok_or_else(|| {
6985 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6986 })
6987 })
6988 .collect::<Result<Vec<_>, _>>()
6989 .log_err()
6990 else {
6991 continue;
6992 };
6993
6994 let unwrapped_text = lines_without_prefixes.join(" ");
6995 let wrap_column = buffer
6996 .settings_at(Point::new(start_row, 0), cx)
6997 .preferred_line_length as usize;
6998 let mut wrapped_text = String::new();
6999 let mut current_line = line_prefix.clone();
7000 for word in unwrapped_text.split_whitespace() {
7001 if current_line.len() + word.len() >= wrap_column {
7002 wrapped_text.push_str(¤t_line);
7003 wrapped_text.push('\n');
7004 current_line.truncate(line_prefix.len());
7005 }
7006
7007 if current_line.len() > line_prefix.len() {
7008 current_line.push(' ');
7009 }
7010
7011 current_line.push_str(word);
7012 }
7013
7014 if !current_line.is_empty() {
7015 wrapped_text.push_str(¤t_line);
7016 }
7017
7018 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
7019 let mut offset = start.to_offset(&buffer);
7020 let mut moved_since_edit = true;
7021
7022 for change in diff.iter_all_changes() {
7023 let value = change.value();
7024 match change.tag() {
7025 ChangeTag::Equal => {
7026 offset += value.len();
7027 moved_since_edit = true;
7028 }
7029 ChangeTag::Delete => {
7030 let start = buffer.anchor_after(offset);
7031 let end = buffer.anchor_before(offset + value.len());
7032
7033 if moved_since_edit {
7034 edits.push((start..end, String::new()));
7035 } else {
7036 edits.last_mut().unwrap().0.end = end;
7037 }
7038
7039 offset += value.len();
7040 moved_since_edit = false;
7041 }
7042 ChangeTag::Insert => {
7043 if moved_since_edit {
7044 let anchor = buffer.anchor_after(offset);
7045 edits.push((anchor..anchor, value.to_string()));
7046 } else {
7047 edits.last_mut().unwrap().1.push_str(value);
7048 }
7049
7050 moved_since_edit = false;
7051 }
7052 }
7053 }
7054
7055 rewrapped_row_ranges.push(start_row..=end_row);
7056 }
7057
7058 self.buffer
7059 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7060 }
7061
7062 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7063 let mut text = String::new();
7064 let buffer = self.buffer.read(cx).snapshot(cx);
7065 let mut selections = self.selections.all::<Point>(cx);
7066 let mut clipboard_selections = Vec::with_capacity(selections.len());
7067 {
7068 let max_point = buffer.max_point();
7069 let mut is_first = true;
7070 for selection in &mut selections {
7071 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7072 if is_entire_line {
7073 selection.start = Point::new(selection.start.row, 0);
7074 if !selection.is_empty() && selection.end.column == 0 {
7075 selection.end = cmp::min(max_point, selection.end);
7076 } else {
7077 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7078 }
7079 selection.goal = SelectionGoal::None;
7080 }
7081 if is_first {
7082 is_first = false;
7083 } else {
7084 text += "\n";
7085 }
7086 let mut len = 0;
7087 for chunk in buffer.text_for_range(selection.start..selection.end) {
7088 text.push_str(chunk);
7089 len += chunk.len();
7090 }
7091 clipboard_selections.push(ClipboardSelection {
7092 len,
7093 is_entire_line,
7094 first_line_indent: buffer
7095 .indent_size_for_line(MultiBufferRow(selection.start.row))
7096 .len,
7097 });
7098 }
7099 }
7100
7101 self.transact(cx, |this, cx| {
7102 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7103 s.select(selections);
7104 });
7105 this.insert("", cx);
7106 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7107 text,
7108 clipboard_selections,
7109 ));
7110 });
7111 }
7112
7113 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7114 let selections = self.selections.all::<Point>(cx);
7115 let buffer = self.buffer.read(cx).read(cx);
7116 let mut text = String::new();
7117
7118 let mut clipboard_selections = Vec::with_capacity(selections.len());
7119 {
7120 let max_point = buffer.max_point();
7121 let mut is_first = true;
7122 for selection in selections.iter() {
7123 let mut start = selection.start;
7124 let mut end = selection.end;
7125 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7126 if is_entire_line {
7127 start = Point::new(start.row, 0);
7128 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7129 }
7130 if is_first {
7131 is_first = false;
7132 } else {
7133 text += "\n";
7134 }
7135 let mut len = 0;
7136 for chunk in buffer.text_for_range(start..end) {
7137 text.push_str(chunk);
7138 len += chunk.len();
7139 }
7140 clipboard_selections.push(ClipboardSelection {
7141 len,
7142 is_entire_line,
7143 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7144 });
7145 }
7146 }
7147
7148 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7149 text,
7150 clipboard_selections,
7151 ));
7152 }
7153
7154 pub fn do_paste(
7155 &mut self,
7156 text: &String,
7157 clipboard_selections: Option<Vec<ClipboardSelection>>,
7158 handle_entire_lines: bool,
7159 cx: &mut ViewContext<Self>,
7160 ) {
7161 if self.read_only(cx) {
7162 return;
7163 }
7164
7165 let clipboard_text = Cow::Borrowed(text);
7166
7167 self.transact(cx, |this, cx| {
7168 if let Some(mut clipboard_selections) = clipboard_selections {
7169 let old_selections = this.selections.all::<usize>(cx);
7170 let all_selections_were_entire_line =
7171 clipboard_selections.iter().all(|s| s.is_entire_line);
7172 let first_selection_indent_column =
7173 clipboard_selections.first().map(|s| s.first_line_indent);
7174 if clipboard_selections.len() != old_selections.len() {
7175 clipboard_selections.drain(..);
7176 }
7177
7178 this.buffer.update(cx, |buffer, cx| {
7179 let snapshot = buffer.read(cx);
7180 let mut start_offset = 0;
7181 let mut edits = Vec::new();
7182 let mut original_indent_columns = Vec::new();
7183 for (ix, selection) in old_selections.iter().enumerate() {
7184 let to_insert;
7185 let entire_line;
7186 let original_indent_column;
7187 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7188 let end_offset = start_offset + clipboard_selection.len;
7189 to_insert = &clipboard_text[start_offset..end_offset];
7190 entire_line = clipboard_selection.is_entire_line;
7191 start_offset = end_offset + 1;
7192 original_indent_column = Some(clipboard_selection.first_line_indent);
7193 } else {
7194 to_insert = clipboard_text.as_str();
7195 entire_line = all_selections_were_entire_line;
7196 original_indent_column = first_selection_indent_column
7197 }
7198
7199 // If the corresponding selection was empty when this slice of the
7200 // clipboard text was written, then the entire line containing the
7201 // selection was copied. If this selection is also currently empty,
7202 // then paste the line before the current line of the buffer.
7203 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7204 let column = selection.start.to_point(&snapshot).column as usize;
7205 let line_start = selection.start - column;
7206 line_start..line_start
7207 } else {
7208 selection.range()
7209 };
7210
7211 edits.push((range, to_insert));
7212 original_indent_columns.extend(original_indent_column);
7213 }
7214 drop(snapshot);
7215
7216 buffer.edit(
7217 edits,
7218 Some(AutoindentMode::Block {
7219 original_indent_columns,
7220 }),
7221 cx,
7222 );
7223 });
7224
7225 let selections = this.selections.all::<usize>(cx);
7226 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7227 } else {
7228 this.insert(&clipboard_text, cx);
7229 }
7230 });
7231 }
7232
7233 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7234 if let Some(item) = cx.read_from_clipboard() {
7235 let entries = item.entries();
7236
7237 match entries.first() {
7238 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7239 // of all the pasted entries.
7240 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7241 .do_paste(
7242 clipboard_string.text(),
7243 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7244 true,
7245 cx,
7246 ),
7247 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7248 }
7249 }
7250 }
7251
7252 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7253 if self.read_only(cx) {
7254 return;
7255 }
7256
7257 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7258 if let Some((selections, _)) =
7259 self.selection_history.transaction(transaction_id).cloned()
7260 {
7261 self.change_selections(None, cx, |s| {
7262 s.select_anchors(selections.to_vec());
7263 });
7264 }
7265 self.request_autoscroll(Autoscroll::fit(), cx);
7266 self.unmark_text(cx);
7267 self.refresh_inline_completion(true, false, cx);
7268 cx.emit(EditorEvent::Edited { transaction_id });
7269 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7270 }
7271 }
7272
7273 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7274 if self.read_only(cx) {
7275 return;
7276 }
7277
7278 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7279 if let Some((_, Some(selections))) =
7280 self.selection_history.transaction(transaction_id).cloned()
7281 {
7282 self.change_selections(None, cx, |s| {
7283 s.select_anchors(selections.to_vec());
7284 });
7285 }
7286 self.request_autoscroll(Autoscroll::fit(), cx);
7287 self.unmark_text(cx);
7288 self.refresh_inline_completion(true, false, cx);
7289 cx.emit(EditorEvent::Edited { transaction_id });
7290 }
7291 }
7292
7293 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7294 self.buffer
7295 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7296 }
7297
7298 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7299 self.buffer
7300 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7301 }
7302
7303 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7304 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7305 let line_mode = s.line_mode;
7306 s.move_with(|map, selection| {
7307 let cursor = if selection.is_empty() && !line_mode {
7308 movement::left(map, selection.start)
7309 } else {
7310 selection.start
7311 };
7312 selection.collapse_to(cursor, SelectionGoal::None);
7313 });
7314 })
7315 }
7316
7317 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7318 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7319 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7320 })
7321 }
7322
7323 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7324 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7325 let line_mode = s.line_mode;
7326 s.move_with(|map, selection| {
7327 let cursor = if selection.is_empty() && !line_mode {
7328 movement::right(map, selection.end)
7329 } else {
7330 selection.end
7331 };
7332 selection.collapse_to(cursor, SelectionGoal::None)
7333 });
7334 })
7335 }
7336
7337 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7338 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7339 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7340 })
7341 }
7342
7343 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7344 if self.take_rename(true, cx).is_some() {
7345 return;
7346 }
7347
7348 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7349 cx.propagate();
7350 return;
7351 }
7352
7353 let text_layout_details = &self.text_layout_details(cx);
7354 let selection_count = self.selections.count();
7355 let first_selection = self.selections.first_anchor();
7356
7357 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7358 let line_mode = s.line_mode;
7359 s.move_with(|map, selection| {
7360 if !selection.is_empty() && !line_mode {
7361 selection.goal = SelectionGoal::None;
7362 }
7363 let (cursor, goal) = movement::up(
7364 map,
7365 selection.start,
7366 selection.goal,
7367 false,
7368 text_layout_details,
7369 );
7370 selection.collapse_to(cursor, goal);
7371 });
7372 });
7373
7374 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7375 {
7376 cx.propagate();
7377 }
7378 }
7379
7380 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7381 if self.take_rename(true, cx).is_some() {
7382 return;
7383 }
7384
7385 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7386 cx.propagate();
7387 return;
7388 }
7389
7390 let text_layout_details = &self.text_layout_details(cx);
7391
7392 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7393 let line_mode = s.line_mode;
7394 s.move_with(|map, selection| {
7395 if !selection.is_empty() && !line_mode {
7396 selection.goal = SelectionGoal::None;
7397 }
7398 let (cursor, goal) = movement::up_by_rows(
7399 map,
7400 selection.start,
7401 action.lines,
7402 selection.goal,
7403 false,
7404 text_layout_details,
7405 );
7406 selection.collapse_to(cursor, goal);
7407 });
7408 })
7409 }
7410
7411 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7412 if self.take_rename(true, cx).is_some() {
7413 return;
7414 }
7415
7416 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7417 cx.propagate();
7418 return;
7419 }
7420
7421 let text_layout_details = &self.text_layout_details(cx);
7422
7423 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7424 let line_mode = s.line_mode;
7425 s.move_with(|map, selection| {
7426 if !selection.is_empty() && !line_mode {
7427 selection.goal = SelectionGoal::None;
7428 }
7429 let (cursor, goal) = movement::down_by_rows(
7430 map,
7431 selection.start,
7432 action.lines,
7433 selection.goal,
7434 false,
7435 text_layout_details,
7436 );
7437 selection.collapse_to(cursor, goal);
7438 });
7439 })
7440 }
7441
7442 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7443 let text_layout_details = &self.text_layout_details(cx);
7444 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7445 s.move_heads_with(|map, head, goal| {
7446 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7447 })
7448 })
7449 }
7450
7451 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7452 let text_layout_details = &self.text_layout_details(cx);
7453 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7454 s.move_heads_with(|map, head, goal| {
7455 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7456 })
7457 })
7458 }
7459
7460 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7461 let Some(row_count) = self.visible_row_count() else {
7462 return;
7463 };
7464
7465 let text_layout_details = &self.text_layout_details(cx);
7466
7467 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7468 s.move_heads_with(|map, head, goal| {
7469 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7470 })
7471 })
7472 }
7473
7474 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7475 if self.take_rename(true, cx).is_some() {
7476 return;
7477 }
7478
7479 if self
7480 .context_menu
7481 .write()
7482 .as_mut()
7483 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7484 .unwrap_or(false)
7485 {
7486 return;
7487 }
7488
7489 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7490 cx.propagate();
7491 return;
7492 }
7493
7494 let Some(row_count) = self.visible_row_count() else {
7495 return;
7496 };
7497
7498 let autoscroll = if action.center_cursor {
7499 Autoscroll::center()
7500 } else {
7501 Autoscroll::fit()
7502 };
7503
7504 let text_layout_details = &self.text_layout_details(cx);
7505
7506 self.change_selections(Some(autoscroll), cx, |s| {
7507 let line_mode = s.line_mode;
7508 s.move_with(|map, selection| {
7509 if !selection.is_empty() && !line_mode {
7510 selection.goal = SelectionGoal::None;
7511 }
7512 let (cursor, goal) = movement::up_by_rows(
7513 map,
7514 selection.end,
7515 row_count,
7516 selection.goal,
7517 false,
7518 text_layout_details,
7519 );
7520 selection.collapse_to(cursor, goal);
7521 });
7522 });
7523 }
7524
7525 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7526 let text_layout_details = &self.text_layout_details(cx);
7527 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7528 s.move_heads_with(|map, head, goal| {
7529 movement::up(map, head, goal, false, text_layout_details)
7530 })
7531 })
7532 }
7533
7534 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7535 self.take_rename(true, cx);
7536
7537 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7538 cx.propagate();
7539 return;
7540 }
7541
7542 let text_layout_details = &self.text_layout_details(cx);
7543 let selection_count = self.selections.count();
7544 let first_selection = self.selections.first_anchor();
7545
7546 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7547 let line_mode = s.line_mode;
7548 s.move_with(|map, selection| {
7549 if !selection.is_empty() && !line_mode {
7550 selection.goal = SelectionGoal::None;
7551 }
7552 let (cursor, goal) = movement::down(
7553 map,
7554 selection.end,
7555 selection.goal,
7556 false,
7557 text_layout_details,
7558 );
7559 selection.collapse_to(cursor, goal);
7560 });
7561 });
7562
7563 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7564 {
7565 cx.propagate();
7566 }
7567 }
7568
7569 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7570 let Some(row_count) = self.visible_row_count() else {
7571 return;
7572 };
7573
7574 let text_layout_details = &self.text_layout_details(cx);
7575
7576 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7577 s.move_heads_with(|map, head, goal| {
7578 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7579 })
7580 })
7581 }
7582
7583 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7584 if self.take_rename(true, cx).is_some() {
7585 return;
7586 }
7587
7588 if self
7589 .context_menu
7590 .write()
7591 .as_mut()
7592 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7593 .unwrap_or(false)
7594 {
7595 return;
7596 }
7597
7598 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7599 cx.propagate();
7600 return;
7601 }
7602
7603 let Some(row_count) = self.visible_row_count() else {
7604 return;
7605 };
7606
7607 let autoscroll = if action.center_cursor {
7608 Autoscroll::center()
7609 } else {
7610 Autoscroll::fit()
7611 };
7612
7613 let text_layout_details = &self.text_layout_details(cx);
7614 self.change_selections(Some(autoscroll), cx, |s| {
7615 let line_mode = s.line_mode;
7616 s.move_with(|map, selection| {
7617 if !selection.is_empty() && !line_mode {
7618 selection.goal = SelectionGoal::None;
7619 }
7620 let (cursor, goal) = movement::down_by_rows(
7621 map,
7622 selection.end,
7623 row_count,
7624 selection.goal,
7625 false,
7626 text_layout_details,
7627 );
7628 selection.collapse_to(cursor, goal);
7629 });
7630 });
7631 }
7632
7633 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7634 let text_layout_details = &self.text_layout_details(cx);
7635 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7636 s.move_heads_with(|map, head, goal| {
7637 movement::down(map, head, goal, false, text_layout_details)
7638 })
7639 });
7640 }
7641
7642 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7643 if let Some(context_menu) = self.context_menu.write().as_mut() {
7644 context_menu.select_first(self.completion_provider.as_deref(), cx);
7645 }
7646 }
7647
7648 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7649 if let Some(context_menu) = self.context_menu.write().as_mut() {
7650 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7651 }
7652 }
7653
7654 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7655 if let Some(context_menu) = self.context_menu.write().as_mut() {
7656 context_menu.select_next(self.completion_provider.as_deref(), cx);
7657 }
7658 }
7659
7660 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7661 if let Some(context_menu) = self.context_menu.write().as_mut() {
7662 context_menu.select_last(self.completion_provider.as_deref(), cx);
7663 }
7664 }
7665
7666 pub fn move_to_previous_word_start(
7667 &mut self,
7668 _: &MoveToPreviousWordStart,
7669 cx: &mut ViewContext<Self>,
7670 ) {
7671 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7672 s.move_cursors_with(|map, head, _| {
7673 (
7674 movement::previous_word_start(map, head),
7675 SelectionGoal::None,
7676 )
7677 });
7678 })
7679 }
7680
7681 pub fn move_to_previous_subword_start(
7682 &mut self,
7683 _: &MoveToPreviousSubwordStart,
7684 cx: &mut ViewContext<Self>,
7685 ) {
7686 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7687 s.move_cursors_with(|map, head, _| {
7688 (
7689 movement::previous_subword_start(map, head),
7690 SelectionGoal::None,
7691 )
7692 });
7693 })
7694 }
7695
7696 pub fn select_to_previous_word_start(
7697 &mut self,
7698 _: &SelectToPreviousWordStart,
7699 cx: &mut ViewContext<Self>,
7700 ) {
7701 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7702 s.move_heads_with(|map, head, _| {
7703 (
7704 movement::previous_word_start(map, head),
7705 SelectionGoal::None,
7706 )
7707 });
7708 })
7709 }
7710
7711 pub fn select_to_previous_subword_start(
7712 &mut self,
7713 _: &SelectToPreviousSubwordStart,
7714 cx: &mut ViewContext<Self>,
7715 ) {
7716 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7717 s.move_heads_with(|map, head, _| {
7718 (
7719 movement::previous_subword_start(map, head),
7720 SelectionGoal::None,
7721 )
7722 });
7723 })
7724 }
7725
7726 pub fn delete_to_previous_word_start(
7727 &mut self,
7728 action: &DeleteToPreviousWordStart,
7729 cx: &mut ViewContext<Self>,
7730 ) {
7731 self.transact(cx, |this, cx| {
7732 this.select_autoclose_pair(cx);
7733 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7734 let line_mode = s.line_mode;
7735 s.move_with(|map, selection| {
7736 if selection.is_empty() && !line_mode {
7737 let cursor = if action.ignore_newlines {
7738 movement::previous_word_start(map, selection.head())
7739 } else {
7740 movement::previous_word_start_or_newline(map, selection.head())
7741 };
7742 selection.set_head(cursor, SelectionGoal::None);
7743 }
7744 });
7745 });
7746 this.insert("", cx);
7747 });
7748 }
7749
7750 pub fn delete_to_previous_subword_start(
7751 &mut self,
7752 _: &DeleteToPreviousSubwordStart,
7753 cx: &mut ViewContext<Self>,
7754 ) {
7755 self.transact(cx, |this, cx| {
7756 this.select_autoclose_pair(cx);
7757 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7758 let line_mode = s.line_mode;
7759 s.move_with(|map, selection| {
7760 if selection.is_empty() && !line_mode {
7761 let cursor = movement::previous_subword_start(map, selection.head());
7762 selection.set_head(cursor, SelectionGoal::None);
7763 }
7764 });
7765 });
7766 this.insert("", cx);
7767 });
7768 }
7769
7770 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7771 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7772 s.move_cursors_with(|map, head, _| {
7773 (movement::next_word_end(map, head), SelectionGoal::None)
7774 });
7775 })
7776 }
7777
7778 pub fn move_to_next_subword_end(
7779 &mut self,
7780 _: &MoveToNextSubwordEnd,
7781 cx: &mut ViewContext<Self>,
7782 ) {
7783 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7784 s.move_cursors_with(|map, head, _| {
7785 (movement::next_subword_end(map, head), SelectionGoal::None)
7786 });
7787 })
7788 }
7789
7790 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7791 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7792 s.move_heads_with(|map, head, _| {
7793 (movement::next_word_end(map, head), SelectionGoal::None)
7794 });
7795 })
7796 }
7797
7798 pub fn select_to_next_subword_end(
7799 &mut self,
7800 _: &SelectToNextSubwordEnd,
7801 cx: &mut ViewContext<Self>,
7802 ) {
7803 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7804 s.move_heads_with(|map, head, _| {
7805 (movement::next_subword_end(map, head), SelectionGoal::None)
7806 });
7807 })
7808 }
7809
7810 pub fn delete_to_next_word_end(
7811 &mut self,
7812 action: &DeleteToNextWordEnd,
7813 cx: &mut ViewContext<Self>,
7814 ) {
7815 self.transact(cx, |this, cx| {
7816 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7817 let line_mode = s.line_mode;
7818 s.move_with(|map, selection| {
7819 if selection.is_empty() && !line_mode {
7820 let cursor = if action.ignore_newlines {
7821 movement::next_word_end(map, selection.head())
7822 } else {
7823 movement::next_word_end_or_newline(map, selection.head())
7824 };
7825 selection.set_head(cursor, SelectionGoal::None);
7826 }
7827 });
7828 });
7829 this.insert("", cx);
7830 });
7831 }
7832
7833 pub fn delete_to_next_subword_end(
7834 &mut self,
7835 _: &DeleteToNextSubwordEnd,
7836 cx: &mut ViewContext<Self>,
7837 ) {
7838 self.transact(cx, |this, cx| {
7839 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7840 s.move_with(|map, selection| {
7841 if selection.is_empty() {
7842 let cursor = movement::next_subword_end(map, selection.head());
7843 selection.set_head(cursor, SelectionGoal::None);
7844 }
7845 });
7846 });
7847 this.insert("", cx);
7848 });
7849 }
7850
7851 pub fn move_to_beginning_of_line(
7852 &mut self,
7853 action: &MoveToBeginningOfLine,
7854 cx: &mut ViewContext<Self>,
7855 ) {
7856 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7857 s.move_cursors_with(|map, head, _| {
7858 (
7859 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7860 SelectionGoal::None,
7861 )
7862 });
7863 })
7864 }
7865
7866 pub fn select_to_beginning_of_line(
7867 &mut self,
7868 action: &SelectToBeginningOfLine,
7869 cx: &mut ViewContext<Self>,
7870 ) {
7871 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7872 s.move_heads_with(|map, head, _| {
7873 (
7874 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7875 SelectionGoal::None,
7876 )
7877 });
7878 });
7879 }
7880
7881 pub fn delete_to_beginning_of_line(
7882 &mut self,
7883 _: &DeleteToBeginningOfLine,
7884 cx: &mut ViewContext<Self>,
7885 ) {
7886 self.transact(cx, |this, cx| {
7887 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7888 s.move_with(|_, selection| {
7889 selection.reversed = true;
7890 });
7891 });
7892
7893 this.select_to_beginning_of_line(
7894 &SelectToBeginningOfLine {
7895 stop_at_soft_wraps: false,
7896 },
7897 cx,
7898 );
7899 this.backspace(&Backspace, cx);
7900 });
7901 }
7902
7903 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7904 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7905 s.move_cursors_with(|map, head, _| {
7906 (
7907 movement::line_end(map, head, action.stop_at_soft_wraps),
7908 SelectionGoal::None,
7909 )
7910 });
7911 })
7912 }
7913
7914 pub fn select_to_end_of_line(
7915 &mut self,
7916 action: &SelectToEndOfLine,
7917 cx: &mut ViewContext<Self>,
7918 ) {
7919 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7920 s.move_heads_with(|map, head, _| {
7921 (
7922 movement::line_end(map, head, action.stop_at_soft_wraps),
7923 SelectionGoal::None,
7924 )
7925 });
7926 })
7927 }
7928
7929 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7930 self.transact(cx, |this, cx| {
7931 this.select_to_end_of_line(
7932 &SelectToEndOfLine {
7933 stop_at_soft_wraps: false,
7934 },
7935 cx,
7936 );
7937 this.delete(&Delete, cx);
7938 });
7939 }
7940
7941 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7942 self.transact(cx, |this, cx| {
7943 this.select_to_end_of_line(
7944 &SelectToEndOfLine {
7945 stop_at_soft_wraps: false,
7946 },
7947 cx,
7948 );
7949 this.cut(&Cut, cx);
7950 });
7951 }
7952
7953 pub fn move_to_start_of_paragraph(
7954 &mut self,
7955 _: &MoveToStartOfParagraph,
7956 cx: &mut ViewContext<Self>,
7957 ) {
7958 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7959 cx.propagate();
7960 return;
7961 }
7962
7963 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7964 s.move_with(|map, selection| {
7965 selection.collapse_to(
7966 movement::start_of_paragraph(map, selection.head(), 1),
7967 SelectionGoal::None,
7968 )
7969 });
7970 })
7971 }
7972
7973 pub fn move_to_end_of_paragraph(
7974 &mut self,
7975 _: &MoveToEndOfParagraph,
7976 cx: &mut ViewContext<Self>,
7977 ) {
7978 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7979 cx.propagate();
7980 return;
7981 }
7982
7983 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7984 s.move_with(|map, selection| {
7985 selection.collapse_to(
7986 movement::end_of_paragraph(map, selection.head(), 1),
7987 SelectionGoal::None,
7988 )
7989 });
7990 })
7991 }
7992
7993 pub fn select_to_start_of_paragraph(
7994 &mut self,
7995 _: &SelectToStartOfParagraph,
7996 cx: &mut ViewContext<Self>,
7997 ) {
7998 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7999 cx.propagate();
8000 return;
8001 }
8002
8003 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8004 s.move_heads_with(|map, head, _| {
8005 (
8006 movement::start_of_paragraph(map, head, 1),
8007 SelectionGoal::None,
8008 )
8009 });
8010 })
8011 }
8012
8013 pub fn select_to_end_of_paragraph(
8014 &mut self,
8015 _: &SelectToEndOfParagraph,
8016 cx: &mut ViewContext<Self>,
8017 ) {
8018 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8019 cx.propagate();
8020 return;
8021 }
8022
8023 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8024 s.move_heads_with(|map, head, _| {
8025 (
8026 movement::end_of_paragraph(map, head, 1),
8027 SelectionGoal::None,
8028 )
8029 });
8030 })
8031 }
8032
8033 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8034 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8035 cx.propagate();
8036 return;
8037 }
8038
8039 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8040 s.select_ranges(vec![0..0]);
8041 });
8042 }
8043
8044 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8045 let mut selection = self.selections.last::<Point>(cx);
8046 selection.set_head(Point::zero(), SelectionGoal::None);
8047
8048 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8049 s.select(vec![selection]);
8050 });
8051 }
8052
8053 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8054 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8055 cx.propagate();
8056 return;
8057 }
8058
8059 let cursor = self.buffer.read(cx).read(cx).len();
8060 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8061 s.select_ranges(vec![cursor..cursor])
8062 });
8063 }
8064
8065 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8066 self.nav_history = nav_history;
8067 }
8068
8069 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8070 self.nav_history.as_ref()
8071 }
8072
8073 fn push_to_nav_history(
8074 &mut self,
8075 cursor_anchor: Anchor,
8076 new_position: Option<Point>,
8077 cx: &mut ViewContext<Self>,
8078 ) {
8079 if let Some(nav_history) = self.nav_history.as_mut() {
8080 let buffer = self.buffer.read(cx).read(cx);
8081 let cursor_position = cursor_anchor.to_point(&buffer);
8082 let scroll_state = self.scroll_manager.anchor();
8083 let scroll_top_row = scroll_state.top_row(&buffer);
8084 drop(buffer);
8085
8086 if let Some(new_position) = new_position {
8087 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8088 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8089 return;
8090 }
8091 }
8092
8093 nav_history.push(
8094 Some(NavigationData {
8095 cursor_anchor,
8096 cursor_position,
8097 scroll_anchor: scroll_state,
8098 scroll_top_row,
8099 }),
8100 cx,
8101 );
8102 }
8103 }
8104
8105 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8106 let buffer = self.buffer.read(cx).snapshot(cx);
8107 let mut selection = self.selections.first::<usize>(cx);
8108 selection.set_head(buffer.len(), SelectionGoal::None);
8109 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8110 s.select(vec![selection]);
8111 });
8112 }
8113
8114 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8115 let end = self.buffer.read(cx).read(cx).len();
8116 self.change_selections(None, cx, |s| {
8117 s.select_ranges(vec![0..end]);
8118 });
8119 }
8120
8121 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8122 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8123 let mut selections = self.selections.all::<Point>(cx);
8124 let max_point = display_map.buffer_snapshot.max_point();
8125 for selection in &mut selections {
8126 let rows = selection.spanned_rows(true, &display_map);
8127 selection.start = Point::new(rows.start.0, 0);
8128 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8129 selection.reversed = false;
8130 }
8131 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8132 s.select(selections);
8133 });
8134 }
8135
8136 pub fn split_selection_into_lines(
8137 &mut self,
8138 _: &SplitSelectionIntoLines,
8139 cx: &mut ViewContext<Self>,
8140 ) {
8141 let mut to_unfold = Vec::new();
8142 let mut new_selection_ranges = Vec::new();
8143 {
8144 let selections = self.selections.all::<Point>(cx);
8145 let buffer = self.buffer.read(cx).read(cx);
8146 for selection in selections {
8147 for row in selection.start.row..selection.end.row {
8148 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8149 new_selection_ranges.push(cursor..cursor);
8150 }
8151 new_selection_ranges.push(selection.end..selection.end);
8152 to_unfold.push(selection.start..selection.end);
8153 }
8154 }
8155 self.unfold_ranges(to_unfold, true, true, cx);
8156 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8157 s.select_ranges(new_selection_ranges);
8158 });
8159 }
8160
8161 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8162 self.add_selection(true, cx);
8163 }
8164
8165 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8166 self.add_selection(false, cx);
8167 }
8168
8169 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8170 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8171 let mut selections = self.selections.all::<Point>(cx);
8172 let text_layout_details = self.text_layout_details(cx);
8173 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8174 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8175 let range = oldest_selection.display_range(&display_map).sorted();
8176
8177 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8178 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8179 let positions = start_x.min(end_x)..start_x.max(end_x);
8180
8181 selections.clear();
8182 let mut stack = Vec::new();
8183 for row in range.start.row().0..=range.end.row().0 {
8184 if let Some(selection) = self.selections.build_columnar_selection(
8185 &display_map,
8186 DisplayRow(row),
8187 &positions,
8188 oldest_selection.reversed,
8189 &text_layout_details,
8190 ) {
8191 stack.push(selection.id);
8192 selections.push(selection);
8193 }
8194 }
8195
8196 if above {
8197 stack.reverse();
8198 }
8199
8200 AddSelectionsState { above, stack }
8201 });
8202
8203 let last_added_selection = *state.stack.last().unwrap();
8204 let mut new_selections = Vec::new();
8205 if above == state.above {
8206 let end_row = if above {
8207 DisplayRow(0)
8208 } else {
8209 display_map.max_point().row()
8210 };
8211
8212 'outer: for selection in selections {
8213 if selection.id == last_added_selection {
8214 let range = selection.display_range(&display_map).sorted();
8215 debug_assert_eq!(range.start.row(), range.end.row());
8216 let mut row = range.start.row();
8217 let positions =
8218 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8219 px(start)..px(end)
8220 } else {
8221 let start_x =
8222 display_map.x_for_display_point(range.start, &text_layout_details);
8223 let end_x =
8224 display_map.x_for_display_point(range.end, &text_layout_details);
8225 start_x.min(end_x)..start_x.max(end_x)
8226 };
8227
8228 while row != end_row {
8229 if above {
8230 row.0 -= 1;
8231 } else {
8232 row.0 += 1;
8233 }
8234
8235 if let Some(new_selection) = self.selections.build_columnar_selection(
8236 &display_map,
8237 row,
8238 &positions,
8239 selection.reversed,
8240 &text_layout_details,
8241 ) {
8242 state.stack.push(new_selection.id);
8243 if above {
8244 new_selections.push(new_selection);
8245 new_selections.push(selection);
8246 } else {
8247 new_selections.push(selection);
8248 new_selections.push(new_selection);
8249 }
8250
8251 continue 'outer;
8252 }
8253 }
8254 }
8255
8256 new_selections.push(selection);
8257 }
8258 } else {
8259 new_selections = selections;
8260 new_selections.retain(|s| s.id != last_added_selection);
8261 state.stack.pop();
8262 }
8263
8264 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8265 s.select(new_selections);
8266 });
8267 if state.stack.len() > 1 {
8268 self.add_selections_state = Some(state);
8269 }
8270 }
8271
8272 pub fn select_next_match_internal(
8273 &mut self,
8274 display_map: &DisplaySnapshot,
8275 replace_newest: bool,
8276 autoscroll: Option<Autoscroll>,
8277 cx: &mut ViewContext<Self>,
8278 ) -> Result<()> {
8279 fn select_next_match_ranges(
8280 this: &mut Editor,
8281 range: Range<usize>,
8282 replace_newest: bool,
8283 auto_scroll: Option<Autoscroll>,
8284 cx: &mut ViewContext<Editor>,
8285 ) {
8286 this.unfold_ranges([range.clone()], false, true, cx);
8287 this.change_selections(auto_scroll, cx, |s| {
8288 if replace_newest {
8289 s.delete(s.newest_anchor().id);
8290 }
8291 s.insert_range(range.clone());
8292 });
8293 }
8294
8295 let buffer = &display_map.buffer_snapshot;
8296 let mut selections = self.selections.all::<usize>(cx);
8297 if let Some(mut select_next_state) = self.select_next_state.take() {
8298 let query = &select_next_state.query;
8299 if !select_next_state.done {
8300 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8301 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8302 let mut next_selected_range = None;
8303
8304 let bytes_after_last_selection =
8305 buffer.bytes_in_range(last_selection.end..buffer.len());
8306 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8307 let query_matches = query
8308 .stream_find_iter(bytes_after_last_selection)
8309 .map(|result| (last_selection.end, result))
8310 .chain(
8311 query
8312 .stream_find_iter(bytes_before_first_selection)
8313 .map(|result| (0, result)),
8314 );
8315
8316 for (start_offset, query_match) in query_matches {
8317 let query_match = query_match.unwrap(); // can only fail due to I/O
8318 let offset_range =
8319 start_offset + query_match.start()..start_offset + query_match.end();
8320 let display_range = offset_range.start.to_display_point(display_map)
8321 ..offset_range.end.to_display_point(display_map);
8322
8323 if !select_next_state.wordwise
8324 || (!movement::is_inside_word(display_map, display_range.start)
8325 && !movement::is_inside_word(display_map, display_range.end))
8326 {
8327 // TODO: This is n^2, because we might check all the selections
8328 if !selections
8329 .iter()
8330 .any(|selection| selection.range().overlaps(&offset_range))
8331 {
8332 next_selected_range = Some(offset_range);
8333 break;
8334 }
8335 }
8336 }
8337
8338 if let Some(next_selected_range) = next_selected_range {
8339 select_next_match_ranges(
8340 self,
8341 next_selected_range,
8342 replace_newest,
8343 autoscroll,
8344 cx,
8345 );
8346 } else {
8347 select_next_state.done = true;
8348 }
8349 }
8350
8351 self.select_next_state = Some(select_next_state);
8352 } else {
8353 let mut only_carets = true;
8354 let mut same_text_selected = true;
8355 let mut selected_text = None;
8356
8357 let mut selections_iter = selections.iter().peekable();
8358 while let Some(selection) = selections_iter.next() {
8359 if selection.start != selection.end {
8360 only_carets = false;
8361 }
8362
8363 if same_text_selected {
8364 if selected_text.is_none() {
8365 selected_text =
8366 Some(buffer.text_for_range(selection.range()).collect::<String>());
8367 }
8368
8369 if let Some(next_selection) = selections_iter.peek() {
8370 if next_selection.range().len() == selection.range().len() {
8371 let next_selected_text = buffer
8372 .text_for_range(next_selection.range())
8373 .collect::<String>();
8374 if Some(next_selected_text) != selected_text {
8375 same_text_selected = false;
8376 selected_text = None;
8377 }
8378 } else {
8379 same_text_selected = false;
8380 selected_text = None;
8381 }
8382 }
8383 }
8384 }
8385
8386 if only_carets {
8387 for selection in &mut selections {
8388 let word_range = movement::surrounding_word(
8389 display_map,
8390 selection.start.to_display_point(display_map),
8391 );
8392 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8393 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8394 selection.goal = SelectionGoal::None;
8395 selection.reversed = false;
8396 select_next_match_ranges(
8397 self,
8398 selection.start..selection.end,
8399 replace_newest,
8400 autoscroll,
8401 cx,
8402 );
8403 }
8404
8405 if selections.len() == 1 {
8406 let selection = selections
8407 .last()
8408 .expect("ensured that there's only one selection");
8409 let query = buffer
8410 .text_for_range(selection.start..selection.end)
8411 .collect::<String>();
8412 let is_empty = query.is_empty();
8413 let select_state = SelectNextState {
8414 query: AhoCorasick::new(&[query])?,
8415 wordwise: true,
8416 done: is_empty,
8417 };
8418 self.select_next_state = Some(select_state);
8419 } else {
8420 self.select_next_state = None;
8421 }
8422 } else if let Some(selected_text) = selected_text {
8423 self.select_next_state = Some(SelectNextState {
8424 query: AhoCorasick::new(&[selected_text])?,
8425 wordwise: false,
8426 done: false,
8427 });
8428 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8429 }
8430 }
8431 Ok(())
8432 }
8433
8434 pub fn select_all_matches(
8435 &mut self,
8436 _action: &SelectAllMatches,
8437 cx: &mut ViewContext<Self>,
8438 ) -> Result<()> {
8439 self.push_to_selection_history();
8440 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8441
8442 self.select_next_match_internal(&display_map, false, None, cx)?;
8443 let Some(select_next_state) = self.select_next_state.as_mut() else {
8444 return Ok(());
8445 };
8446 if select_next_state.done {
8447 return Ok(());
8448 }
8449
8450 let mut new_selections = self.selections.all::<usize>(cx);
8451
8452 let buffer = &display_map.buffer_snapshot;
8453 let query_matches = select_next_state
8454 .query
8455 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8456
8457 for query_match in query_matches {
8458 let query_match = query_match.unwrap(); // can only fail due to I/O
8459 let offset_range = query_match.start()..query_match.end();
8460 let display_range = offset_range.start.to_display_point(&display_map)
8461 ..offset_range.end.to_display_point(&display_map);
8462
8463 if !select_next_state.wordwise
8464 || (!movement::is_inside_word(&display_map, display_range.start)
8465 && !movement::is_inside_word(&display_map, display_range.end))
8466 {
8467 self.selections.change_with(cx, |selections| {
8468 new_selections.push(Selection {
8469 id: selections.new_selection_id(),
8470 start: offset_range.start,
8471 end: offset_range.end,
8472 reversed: false,
8473 goal: SelectionGoal::None,
8474 });
8475 });
8476 }
8477 }
8478
8479 new_selections.sort_by_key(|selection| selection.start);
8480 let mut ix = 0;
8481 while ix + 1 < new_selections.len() {
8482 let current_selection = &new_selections[ix];
8483 let next_selection = &new_selections[ix + 1];
8484 if current_selection.range().overlaps(&next_selection.range()) {
8485 if current_selection.id < next_selection.id {
8486 new_selections.remove(ix + 1);
8487 } else {
8488 new_selections.remove(ix);
8489 }
8490 } else {
8491 ix += 1;
8492 }
8493 }
8494
8495 select_next_state.done = true;
8496 self.unfold_ranges(
8497 new_selections.iter().map(|selection| selection.range()),
8498 false,
8499 false,
8500 cx,
8501 );
8502 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8503 selections.select(new_selections)
8504 });
8505
8506 Ok(())
8507 }
8508
8509 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8510 self.push_to_selection_history();
8511 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8512 self.select_next_match_internal(
8513 &display_map,
8514 action.replace_newest,
8515 Some(Autoscroll::newest()),
8516 cx,
8517 )?;
8518 Ok(())
8519 }
8520
8521 pub fn select_previous(
8522 &mut self,
8523 action: &SelectPrevious,
8524 cx: &mut ViewContext<Self>,
8525 ) -> Result<()> {
8526 self.push_to_selection_history();
8527 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8528 let buffer = &display_map.buffer_snapshot;
8529 let mut selections = self.selections.all::<usize>(cx);
8530 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8531 let query = &select_prev_state.query;
8532 if !select_prev_state.done {
8533 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8534 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8535 let mut next_selected_range = None;
8536 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8537 let bytes_before_last_selection =
8538 buffer.reversed_bytes_in_range(0..last_selection.start);
8539 let bytes_after_first_selection =
8540 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8541 let query_matches = query
8542 .stream_find_iter(bytes_before_last_selection)
8543 .map(|result| (last_selection.start, result))
8544 .chain(
8545 query
8546 .stream_find_iter(bytes_after_first_selection)
8547 .map(|result| (buffer.len(), result)),
8548 );
8549 for (end_offset, query_match) in query_matches {
8550 let query_match = query_match.unwrap(); // can only fail due to I/O
8551 let offset_range =
8552 end_offset - query_match.end()..end_offset - query_match.start();
8553 let display_range = offset_range.start.to_display_point(&display_map)
8554 ..offset_range.end.to_display_point(&display_map);
8555
8556 if !select_prev_state.wordwise
8557 || (!movement::is_inside_word(&display_map, display_range.start)
8558 && !movement::is_inside_word(&display_map, display_range.end))
8559 {
8560 next_selected_range = Some(offset_range);
8561 break;
8562 }
8563 }
8564
8565 if let Some(next_selected_range) = next_selected_range {
8566 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
8567 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8568 if action.replace_newest {
8569 s.delete(s.newest_anchor().id);
8570 }
8571 s.insert_range(next_selected_range);
8572 });
8573 } else {
8574 select_prev_state.done = true;
8575 }
8576 }
8577
8578 self.select_prev_state = Some(select_prev_state);
8579 } else {
8580 let mut only_carets = true;
8581 let mut same_text_selected = true;
8582 let mut selected_text = None;
8583
8584 let mut selections_iter = selections.iter().peekable();
8585 while let Some(selection) = selections_iter.next() {
8586 if selection.start != selection.end {
8587 only_carets = false;
8588 }
8589
8590 if same_text_selected {
8591 if selected_text.is_none() {
8592 selected_text =
8593 Some(buffer.text_for_range(selection.range()).collect::<String>());
8594 }
8595
8596 if let Some(next_selection) = selections_iter.peek() {
8597 if next_selection.range().len() == selection.range().len() {
8598 let next_selected_text = buffer
8599 .text_for_range(next_selection.range())
8600 .collect::<String>();
8601 if Some(next_selected_text) != selected_text {
8602 same_text_selected = false;
8603 selected_text = None;
8604 }
8605 } else {
8606 same_text_selected = false;
8607 selected_text = None;
8608 }
8609 }
8610 }
8611 }
8612
8613 if only_carets {
8614 for selection in &mut selections {
8615 let word_range = movement::surrounding_word(
8616 &display_map,
8617 selection.start.to_display_point(&display_map),
8618 );
8619 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8620 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8621 selection.goal = SelectionGoal::None;
8622 selection.reversed = false;
8623 }
8624 if selections.len() == 1 {
8625 let selection = selections
8626 .last()
8627 .expect("ensured that there's only one selection");
8628 let query = buffer
8629 .text_for_range(selection.start..selection.end)
8630 .collect::<String>();
8631 let is_empty = query.is_empty();
8632 let select_state = SelectNextState {
8633 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8634 wordwise: true,
8635 done: is_empty,
8636 };
8637 self.select_prev_state = Some(select_state);
8638 } else {
8639 self.select_prev_state = None;
8640 }
8641
8642 self.unfold_ranges(
8643 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8644 false,
8645 true,
8646 cx,
8647 );
8648 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8649 s.select(selections);
8650 });
8651 } else if let Some(selected_text) = selected_text {
8652 self.select_prev_state = Some(SelectNextState {
8653 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8654 wordwise: false,
8655 done: false,
8656 });
8657 self.select_previous(action, cx)?;
8658 }
8659 }
8660 Ok(())
8661 }
8662
8663 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8664 let text_layout_details = &self.text_layout_details(cx);
8665 self.transact(cx, |this, cx| {
8666 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8667 let mut edits = Vec::new();
8668 let mut selection_edit_ranges = Vec::new();
8669 let mut last_toggled_row = None;
8670 let snapshot = this.buffer.read(cx).read(cx);
8671 let empty_str: Arc<str> = Arc::default();
8672 let mut suffixes_inserted = Vec::new();
8673
8674 fn comment_prefix_range(
8675 snapshot: &MultiBufferSnapshot,
8676 row: MultiBufferRow,
8677 comment_prefix: &str,
8678 comment_prefix_whitespace: &str,
8679 ) -> Range<Point> {
8680 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8681
8682 let mut line_bytes = snapshot
8683 .bytes_in_range(start..snapshot.max_point())
8684 .flatten()
8685 .copied();
8686
8687 // If this line currently begins with the line comment prefix, then record
8688 // the range containing the prefix.
8689 if line_bytes
8690 .by_ref()
8691 .take(comment_prefix.len())
8692 .eq(comment_prefix.bytes())
8693 {
8694 // Include any whitespace that matches the comment prefix.
8695 let matching_whitespace_len = line_bytes
8696 .zip(comment_prefix_whitespace.bytes())
8697 .take_while(|(a, b)| a == b)
8698 .count() as u32;
8699 let end = Point::new(
8700 start.row,
8701 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8702 );
8703 start..end
8704 } else {
8705 start..start
8706 }
8707 }
8708
8709 fn comment_suffix_range(
8710 snapshot: &MultiBufferSnapshot,
8711 row: MultiBufferRow,
8712 comment_suffix: &str,
8713 comment_suffix_has_leading_space: bool,
8714 ) -> Range<Point> {
8715 let end = Point::new(row.0, snapshot.line_len(row));
8716 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8717
8718 let mut line_end_bytes = snapshot
8719 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8720 .flatten()
8721 .copied();
8722
8723 let leading_space_len = if suffix_start_column > 0
8724 && line_end_bytes.next() == Some(b' ')
8725 && comment_suffix_has_leading_space
8726 {
8727 1
8728 } else {
8729 0
8730 };
8731
8732 // If this line currently begins with the line comment prefix, then record
8733 // the range containing the prefix.
8734 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8735 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8736 start..end
8737 } else {
8738 end..end
8739 }
8740 }
8741
8742 // TODO: Handle selections that cross excerpts
8743 for selection in &mut selections {
8744 let start_column = snapshot
8745 .indent_size_for_line(MultiBufferRow(selection.start.row))
8746 .len;
8747 let language = if let Some(language) =
8748 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8749 {
8750 language
8751 } else {
8752 continue;
8753 };
8754
8755 selection_edit_ranges.clear();
8756
8757 // If multiple selections contain a given row, avoid processing that
8758 // row more than once.
8759 let mut start_row = MultiBufferRow(selection.start.row);
8760 if last_toggled_row == Some(start_row) {
8761 start_row = start_row.next_row();
8762 }
8763 let end_row =
8764 if selection.end.row > selection.start.row && selection.end.column == 0 {
8765 MultiBufferRow(selection.end.row - 1)
8766 } else {
8767 MultiBufferRow(selection.end.row)
8768 };
8769 last_toggled_row = Some(end_row);
8770
8771 if start_row > end_row {
8772 continue;
8773 }
8774
8775 // If the language has line comments, toggle those.
8776 let full_comment_prefixes = language.line_comment_prefixes();
8777 if !full_comment_prefixes.is_empty() {
8778 let first_prefix = full_comment_prefixes
8779 .first()
8780 .expect("prefixes is non-empty");
8781 let prefix_trimmed_lengths = full_comment_prefixes
8782 .iter()
8783 .map(|p| p.trim_end_matches(' ').len())
8784 .collect::<SmallVec<[usize; 4]>>();
8785
8786 let mut all_selection_lines_are_comments = true;
8787
8788 for row in start_row.0..=end_row.0 {
8789 let row = MultiBufferRow(row);
8790 if start_row < end_row && snapshot.is_line_blank(row) {
8791 continue;
8792 }
8793
8794 let prefix_range = full_comment_prefixes
8795 .iter()
8796 .zip(prefix_trimmed_lengths.iter().copied())
8797 .map(|(prefix, trimmed_prefix_len)| {
8798 comment_prefix_range(
8799 snapshot.deref(),
8800 row,
8801 &prefix[..trimmed_prefix_len],
8802 &prefix[trimmed_prefix_len..],
8803 )
8804 })
8805 .max_by_key(|range| range.end.column - range.start.column)
8806 .expect("prefixes is non-empty");
8807
8808 if prefix_range.is_empty() {
8809 all_selection_lines_are_comments = false;
8810 }
8811
8812 selection_edit_ranges.push(prefix_range);
8813 }
8814
8815 if all_selection_lines_are_comments {
8816 edits.extend(
8817 selection_edit_ranges
8818 .iter()
8819 .cloned()
8820 .map(|range| (range, empty_str.clone())),
8821 );
8822 } else {
8823 let min_column = selection_edit_ranges
8824 .iter()
8825 .map(|range| range.start.column)
8826 .min()
8827 .unwrap_or(0);
8828 edits.extend(selection_edit_ranges.iter().map(|range| {
8829 let position = Point::new(range.start.row, min_column);
8830 (position..position, first_prefix.clone())
8831 }));
8832 }
8833 } else if let Some((full_comment_prefix, comment_suffix)) =
8834 language.block_comment_delimiters()
8835 {
8836 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8837 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8838 let prefix_range = comment_prefix_range(
8839 snapshot.deref(),
8840 start_row,
8841 comment_prefix,
8842 comment_prefix_whitespace,
8843 );
8844 let suffix_range = comment_suffix_range(
8845 snapshot.deref(),
8846 end_row,
8847 comment_suffix.trim_start_matches(' '),
8848 comment_suffix.starts_with(' '),
8849 );
8850
8851 if prefix_range.is_empty() || suffix_range.is_empty() {
8852 edits.push((
8853 prefix_range.start..prefix_range.start,
8854 full_comment_prefix.clone(),
8855 ));
8856 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8857 suffixes_inserted.push((end_row, comment_suffix.len()));
8858 } else {
8859 edits.push((prefix_range, empty_str.clone()));
8860 edits.push((suffix_range, empty_str.clone()));
8861 }
8862 } else {
8863 continue;
8864 }
8865 }
8866
8867 drop(snapshot);
8868 this.buffer.update(cx, |buffer, cx| {
8869 buffer.edit(edits, None, cx);
8870 });
8871
8872 // Adjust selections so that they end before any comment suffixes that
8873 // were inserted.
8874 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8875 let mut selections = this.selections.all::<Point>(cx);
8876 let snapshot = this.buffer.read(cx).read(cx);
8877 for selection in &mut selections {
8878 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8879 match row.cmp(&MultiBufferRow(selection.end.row)) {
8880 Ordering::Less => {
8881 suffixes_inserted.next();
8882 continue;
8883 }
8884 Ordering::Greater => break,
8885 Ordering::Equal => {
8886 if selection.end.column == snapshot.line_len(row) {
8887 if selection.is_empty() {
8888 selection.start.column -= suffix_len as u32;
8889 }
8890 selection.end.column -= suffix_len as u32;
8891 }
8892 break;
8893 }
8894 }
8895 }
8896 }
8897
8898 drop(snapshot);
8899 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8900
8901 let selections = this.selections.all::<Point>(cx);
8902 let selections_on_single_row = selections.windows(2).all(|selections| {
8903 selections[0].start.row == selections[1].start.row
8904 && selections[0].end.row == selections[1].end.row
8905 && selections[0].start.row == selections[0].end.row
8906 });
8907 let selections_selecting = selections
8908 .iter()
8909 .any(|selection| selection.start != selection.end);
8910 let advance_downwards = action.advance_downwards
8911 && selections_on_single_row
8912 && !selections_selecting
8913 && !matches!(this.mode, EditorMode::SingleLine { .. });
8914
8915 if advance_downwards {
8916 let snapshot = this.buffer.read(cx).snapshot(cx);
8917
8918 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8919 s.move_cursors_with(|display_snapshot, display_point, _| {
8920 let mut point = display_point.to_point(display_snapshot);
8921 point.row += 1;
8922 point = snapshot.clip_point(point, Bias::Left);
8923 let display_point = point.to_display_point(display_snapshot);
8924 let goal = SelectionGoal::HorizontalPosition(
8925 display_snapshot
8926 .x_for_display_point(display_point, text_layout_details)
8927 .into(),
8928 );
8929 (display_point, goal)
8930 })
8931 });
8932 }
8933 });
8934 }
8935
8936 pub fn select_enclosing_symbol(
8937 &mut self,
8938 _: &SelectEnclosingSymbol,
8939 cx: &mut ViewContext<Self>,
8940 ) {
8941 let buffer = self.buffer.read(cx).snapshot(cx);
8942 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8943
8944 fn update_selection(
8945 selection: &Selection<usize>,
8946 buffer_snap: &MultiBufferSnapshot,
8947 ) -> Option<Selection<usize>> {
8948 let cursor = selection.head();
8949 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8950 for symbol in symbols.iter().rev() {
8951 let start = symbol.range.start.to_offset(buffer_snap);
8952 let end = symbol.range.end.to_offset(buffer_snap);
8953 let new_range = start..end;
8954 if start < selection.start || end > selection.end {
8955 return Some(Selection {
8956 id: selection.id,
8957 start: new_range.start,
8958 end: new_range.end,
8959 goal: SelectionGoal::None,
8960 reversed: selection.reversed,
8961 });
8962 }
8963 }
8964 None
8965 }
8966
8967 let mut selected_larger_symbol = false;
8968 let new_selections = old_selections
8969 .iter()
8970 .map(|selection| match update_selection(selection, &buffer) {
8971 Some(new_selection) => {
8972 if new_selection.range() != selection.range() {
8973 selected_larger_symbol = true;
8974 }
8975 new_selection
8976 }
8977 None => selection.clone(),
8978 })
8979 .collect::<Vec<_>>();
8980
8981 if selected_larger_symbol {
8982 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8983 s.select(new_selections);
8984 });
8985 }
8986 }
8987
8988 pub fn select_larger_syntax_node(
8989 &mut self,
8990 _: &SelectLargerSyntaxNode,
8991 cx: &mut ViewContext<Self>,
8992 ) {
8993 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8994 let buffer = self.buffer.read(cx).snapshot(cx);
8995 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8996
8997 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8998 let mut selected_larger_node = false;
8999 let new_selections = old_selections
9000 .iter()
9001 .map(|selection| {
9002 let old_range = selection.start..selection.end;
9003 let mut new_range = old_range.clone();
9004 while let Some(containing_range) =
9005 buffer.range_for_syntax_ancestor(new_range.clone())
9006 {
9007 new_range = containing_range;
9008 if !display_map.intersects_fold(new_range.start)
9009 && !display_map.intersects_fold(new_range.end)
9010 {
9011 break;
9012 }
9013 }
9014
9015 selected_larger_node |= new_range != old_range;
9016 Selection {
9017 id: selection.id,
9018 start: new_range.start,
9019 end: new_range.end,
9020 goal: SelectionGoal::None,
9021 reversed: selection.reversed,
9022 }
9023 })
9024 .collect::<Vec<_>>();
9025
9026 if selected_larger_node {
9027 stack.push(old_selections);
9028 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9029 s.select(new_selections);
9030 });
9031 }
9032 self.select_larger_syntax_node_stack = stack;
9033 }
9034
9035 pub fn select_smaller_syntax_node(
9036 &mut self,
9037 _: &SelectSmallerSyntaxNode,
9038 cx: &mut ViewContext<Self>,
9039 ) {
9040 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9041 if let Some(selections) = stack.pop() {
9042 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9043 s.select(selections.to_vec());
9044 });
9045 }
9046 self.select_larger_syntax_node_stack = stack;
9047 }
9048
9049 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9050 if !EditorSettings::get_global(cx).gutter.runnables {
9051 self.clear_tasks();
9052 return Task::ready(());
9053 }
9054 let project = self.project.clone();
9055 cx.spawn(|this, mut cx| async move {
9056 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9057 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9058 }) else {
9059 return;
9060 };
9061
9062 let Some(project) = project else {
9063 return;
9064 };
9065
9066 let hide_runnables = project
9067 .update(&mut cx, |project, cx| {
9068 // Do not display any test indicators in non-dev server remote projects.
9069 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9070 })
9071 .unwrap_or(true);
9072 if hide_runnables {
9073 return;
9074 }
9075 let new_rows =
9076 cx.background_executor()
9077 .spawn({
9078 let snapshot = display_snapshot.clone();
9079 async move {
9080 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9081 }
9082 })
9083 .await;
9084 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9085
9086 this.update(&mut cx, |this, _| {
9087 this.clear_tasks();
9088 for (key, value) in rows {
9089 this.insert_tasks(key, value);
9090 }
9091 })
9092 .ok();
9093 })
9094 }
9095 fn fetch_runnable_ranges(
9096 snapshot: &DisplaySnapshot,
9097 range: Range<Anchor>,
9098 ) -> Vec<language::RunnableRange> {
9099 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9100 }
9101
9102 fn runnable_rows(
9103 project: Model<Project>,
9104 snapshot: DisplaySnapshot,
9105 runnable_ranges: Vec<RunnableRange>,
9106 mut cx: AsyncWindowContext,
9107 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9108 runnable_ranges
9109 .into_iter()
9110 .filter_map(|mut runnable| {
9111 let tasks = cx
9112 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9113 .ok()?;
9114 if tasks.is_empty() {
9115 return None;
9116 }
9117
9118 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9119
9120 let row = snapshot
9121 .buffer_snapshot
9122 .buffer_line_for_row(MultiBufferRow(point.row))?
9123 .1
9124 .start
9125 .row;
9126
9127 let context_range =
9128 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9129 Some((
9130 (runnable.buffer_id, row),
9131 RunnableTasks {
9132 templates: tasks,
9133 offset: MultiBufferOffset(runnable.run_range.start),
9134 context_range,
9135 column: point.column,
9136 extra_variables: runnable.extra_captures,
9137 },
9138 ))
9139 })
9140 .collect()
9141 }
9142
9143 fn templates_with_tags(
9144 project: &Model<Project>,
9145 runnable: &mut Runnable,
9146 cx: &WindowContext<'_>,
9147 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9148 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9149 let (worktree_id, file) = project
9150 .buffer_for_id(runnable.buffer, cx)
9151 .and_then(|buffer| buffer.read(cx).file())
9152 .map(|file| (file.worktree_id(cx), file.clone()))
9153 .unzip();
9154
9155 (
9156 project.task_store().read(cx).task_inventory().cloned(),
9157 worktree_id,
9158 file,
9159 )
9160 });
9161
9162 let tags = mem::take(&mut runnable.tags);
9163 let mut tags: Vec<_> = tags
9164 .into_iter()
9165 .flat_map(|tag| {
9166 let tag = tag.0.clone();
9167 inventory
9168 .as_ref()
9169 .into_iter()
9170 .flat_map(|inventory| {
9171 inventory.read(cx).list_tasks(
9172 file.clone(),
9173 Some(runnable.language.clone()),
9174 worktree_id,
9175 cx,
9176 )
9177 })
9178 .filter(move |(_, template)| {
9179 template.tags.iter().any(|source_tag| source_tag == &tag)
9180 })
9181 })
9182 .sorted_by_key(|(kind, _)| kind.to_owned())
9183 .collect();
9184 if let Some((leading_tag_source, _)) = tags.first() {
9185 // Strongest source wins; if we have worktree tag binding, prefer that to
9186 // global and language bindings;
9187 // if we have a global binding, prefer that to language binding.
9188 let first_mismatch = tags
9189 .iter()
9190 .position(|(tag_source, _)| tag_source != leading_tag_source);
9191 if let Some(index) = first_mismatch {
9192 tags.truncate(index);
9193 }
9194 }
9195
9196 tags
9197 }
9198
9199 pub fn move_to_enclosing_bracket(
9200 &mut self,
9201 _: &MoveToEnclosingBracket,
9202 cx: &mut ViewContext<Self>,
9203 ) {
9204 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9205 s.move_offsets_with(|snapshot, selection| {
9206 let Some(enclosing_bracket_ranges) =
9207 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9208 else {
9209 return;
9210 };
9211
9212 let mut best_length = usize::MAX;
9213 let mut best_inside = false;
9214 let mut best_in_bracket_range = false;
9215 let mut best_destination = None;
9216 for (open, close) in enclosing_bracket_ranges {
9217 let close = close.to_inclusive();
9218 let length = close.end() - open.start;
9219 let inside = selection.start >= open.end && selection.end <= *close.start();
9220 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9221 || close.contains(&selection.head());
9222
9223 // If best is next to a bracket and current isn't, skip
9224 if !in_bracket_range && best_in_bracket_range {
9225 continue;
9226 }
9227
9228 // Prefer smaller lengths unless best is inside and current isn't
9229 if length > best_length && (best_inside || !inside) {
9230 continue;
9231 }
9232
9233 best_length = length;
9234 best_inside = inside;
9235 best_in_bracket_range = in_bracket_range;
9236 best_destination = Some(
9237 if close.contains(&selection.start) && close.contains(&selection.end) {
9238 if inside {
9239 open.end
9240 } else {
9241 open.start
9242 }
9243 } else if inside {
9244 *close.start()
9245 } else {
9246 *close.end()
9247 },
9248 );
9249 }
9250
9251 if let Some(destination) = best_destination {
9252 selection.collapse_to(destination, SelectionGoal::None);
9253 }
9254 })
9255 });
9256 }
9257
9258 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9259 self.end_selection(cx);
9260 self.selection_history.mode = SelectionHistoryMode::Undoing;
9261 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9262 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9263 self.select_next_state = entry.select_next_state;
9264 self.select_prev_state = entry.select_prev_state;
9265 self.add_selections_state = entry.add_selections_state;
9266 self.request_autoscroll(Autoscroll::newest(), cx);
9267 }
9268 self.selection_history.mode = SelectionHistoryMode::Normal;
9269 }
9270
9271 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9272 self.end_selection(cx);
9273 self.selection_history.mode = SelectionHistoryMode::Redoing;
9274 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9275 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9276 self.select_next_state = entry.select_next_state;
9277 self.select_prev_state = entry.select_prev_state;
9278 self.add_selections_state = entry.add_selections_state;
9279 self.request_autoscroll(Autoscroll::newest(), cx);
9280 }
9281 self.selection_history.mode = SelectionHistoryMode::Normal;
9282 }
9283
9284 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9285 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9286 }
9287
9288 pub fn expand_excerpts_down(
9289 &mut self,
9290 action: &ExpandExcerptsDown,
9291 cx: &mut ViewContext<Self>,
9292 ) {
9293 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9294 }
9295
9296 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9297 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9298 }
9299
9300 pub fn expand_excerpts_for_direction(
9301 &mut self,
9302 lines: u32,
9303 direction: ExpandExcerptDirection,
9304 cx: &mut ViewContext<Self>,
9305 ) {
9306 let selections = self.selections.disjoint_anchors();
9307
9308 let lines = if lines == 0 {
9309 EditorSettings::get_global(cx).expand_excerpt_lines
9310 } else {
9311 lines
9312 };
9313
9314 self.buffer.update(cx, |buffer, cx| {
9315 buffer.expand_excerpts(
9316 selections
9317 .iter()
9318 .map(|selection| selection.head().excerpt_id)
9319 .dedup(),
9320 lines,
9321 direction,
9322 cx,
9323 )
9324 })
9325 }
9326
9327 pub fn expand_excerpt(
9328 &mut self,
9329 excerpt: ExcerptId,
9330 direction: ExpandExcerptDirection,
9331 cx: &mut ViewContext<Self>,
9332 ) {
9333 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9334 self.buffer.update(cx, |buffer, cx| {
9335 buffer.expand_excerpts([excerpt], lines, direction, cx)
9336 })
9337 }
9338
9339 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9340 self.go_to_diagnostic_impl(Direction::Next, cx)
9341 }
9342
9343 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9344 self.go_to_diagnostic_impl(Direction::Prev, cx)
9345 }
9346
9347 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9348 let buffer = self.buffer.read(cx).snapshot(cx);
9349 let selection = self.selections.newest::<usize>(cx);
9350
9351 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9352 if direction == Direction::Next {
9353 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9354 let (group_id, jump_to) = popover.activation_info();
9355 if self.activate_diagnostics(group_id, cx) {
9356 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9357 let mut new_selection = s.newest_anchor().clone();
9358 new_selection.collapse_to(jump_to, SelectionGoal::None);
9359 s.select_anchors(vec![new_selection.clone()]);
9360 });
9361 }
9362 return;
9363 }
9364 }
9365
9366 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9367 active_diagnostics
9368 .primary_range
9369 .to_offset(&buffer)
9370 .to_inclusive()
9371 });
9372 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9373 if active_primary_range.contains(&selection.head()) {
9374 *active_primary_range.start()
9375 } else {
9376 selection.head()
9377 }
9378 } else {
9379 selection.head()
9380 };
9381 let snapshot = self.snapshot(cx);
9382 loop {
9383 let diagnostics = if direction == Direction::Prev {
9384 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9385 } else {
9386 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9387 }
9388 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9389 let group = diagnostics
9390 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9391 // be sorted in a stable way
9392 // skip until we are at current active diagnostic, if it exists
9393 .skip_while(|entry| {
9394 (match direction {
9395 Direction::Prev => entry.range.start >= search_start,
9396 Direction::Next => entry.range.start <= search_start,
9397 }) && self
9398 .active_diagnostics
9399 .as_ref()
9400 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9401 })
9402 .find_map(|entry| {
9403 if entry.diagnostic.is_primary
9404 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9405 && !entry.range.is_empty()
9406 // if we match with the active diagnostic, skip it
9407 && Some(entry.diagnostic.group_id)
9408 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9409 {
9410 Some((entry.range, entry.diagnostic.group_id))
9411 } else {
9412 None
9413 }
9414 });
9415
9416 if let Some((primary_range, group_id)) = group {
9417 if self.activate_diagnostics(group_id, cx) {
9418 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9419 s.select(vec![Selection {
9420 id: selection.id,
9421 start: primary_range.start,
9422 end: primary_range.start,
9423 reversed: false,
9424 goal: SelectionGoal::None,
9425 }]);
9426 });
9427 }
9428 break;
9429 } else {
9430 // Cycle around to the start of the buffer, potentially moving back to the start of
9431 // the currently active diagnostic.
9432 active_primary_range.take();
9433 if direction == Direction::Prev {
9434 if search_start == buffer.len() {
9435 break;
9436 } else {
9437 search_start = buffer.len();
9438 }
9439 } else if search_start == 0 {
9440 break;
9441 } else {
9442 search_start = 0;
9443 }
9444 }
9445 }
9446 }
9447
9448 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9449 let snapshot = self
9450 .display_map
9451 .update(cx, |display_map, cx| display_map.snapshot(cx));
9452 let selection = self.selections.newest::<Point>(cx);
9453 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9454 }
9455
9456 fn go_to_hunk_after_position(
9457 &mut self,
9458 snapshot: &DisplaySnapshot,
9459 position: Point,
9460 cx: &mut ViewContext<'_, Editor>,
9461 ) -> Option<MultiBufferDiffHunk> {
9462 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9463 snapshot,
9464 position,
9465 false,
9466 snapshot
9467 .buffer_snapshot
9468 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9469 cx,
9470 ) {
9471 return Some(hunk);
9472 }
9473
9474 let wrapped_point = Point::zero();
9475 self.go_to_next_hunk_in_direction(
9476 snapshot,
9477 wrapped_point,
9478 true,
9479 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9480 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9481 ),
9482 cx,
9483 )
9484 }
9485
9486 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9487 let snapshot = self
9488 .display_map
9489 .update(cx, |display_map, cx| display_map.snapshot(cx));
9490 let selection = self.selections.newest::<Point>(cx);
9491
9492 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9493 }
9494
9495 fn go_to_hunk_before_position(
9496 &mut self,
9497 snapshot: &DisplaySnapshot,
9498 position: Point,
9499 cx: &mut ViewContext<'_, Editor>,
9500 ) -> Option<MultiBufferDiffHunk> {
9501 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9502 snapshot,
9503 position,
9504 false,
9505 snapshot
9506 .buffer_snapshot
9507 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9508 cx,
9509 ) {
9510 return Some(hunk);
9511 }
9512
9513 let wrapped_point = snapshot.buffer_snapshot.max_point();
9514 self.go_to_next_hunk_in_direction(
9515 snapshot,
9516 wrapped_point,
9517 true,
9518 snapshot
9519 .buffer_snapshot
9520 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9521 cx,
9522 )
9523 }
9524
9525 fn go_to_next_hunk_in_direction(
9526 &mut self,
9527 snapshot: &DisplaySnapshot,
9528 initial_point: Point,
9529 is_wrapped: bool,
9530 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9531 cx: &mut ViewContext<Editor>,
9532 ) -> Option<MultiBufferDiffHunk> {
9533 let display_point = initial_point.to_display_point(snapshot);
9534 let mut hunks = hunks
9535 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9536 .filter(|(display_hunk, _)| {
9537 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9538 })
9539 .dedup();
9540
9541 if let Some((display_hunk, hunk)) = hunks.next() {
9542 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9543 let row = display_hunk.start_display_row();
9544 let point = DisplayPoint::new(row, 0);
9545 s.select_display_ranges([point..point]);
9546 });
9547
9548 Some(hunk)
9549 } else {
9550 None
9551 }
9552 }
9553
9554 pub fn go_to_definition(
9555 &mut self,
9556 _: &GoToDefinition,
9557 cx: &mut ViewContext<Self>,
9558 ) -> Task<Result<Navigated>> {
9559 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9560 cx.spawn(|editor, mut cx| async move {
9561 if definition.await? == Navigated::Yes {
9562 return Ok(Navigated::Yes);
9563 }
9564 match editor.update(&mut cx, |editor, cx| {
9565 editor.find_all_references(&FindAllReferences, cx)
9566 })? {
9567 Some(references) => references.await,
9568 None => Ok(Navigated::No),
9569 }
9570 })
9571 }
9572
9573 pub fn go_to_declaration(
9574 &mut self,
9575 _: &GoToDeclaration,
9576 cx: &mut ViewContext<Self>,
9577 ) -> Task<Result<Navigated>> {
9578 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9579 }
9580
9581 pub fn go_to_declaration_split(
9582 &mut self,
9583 _: &GoToDeclaration,
9584 cx: &mut ViewContext<Self>,
9585 ) -> Task<Result<Navigated>> {
9586 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9587 }
9588
9589 pub fn go_to_implementation(
9590 &mut self,
9591 _: &GoToImplementation,
9592 cx: &mut ViewContext<Self>,
9593 ) -> Task<Result<Navigated>> {
9594 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9595 }
9596
9597 pub fn go_to_implementation_split(
9598 &mut self,
9599 _: &GoToImplementationSplit,
9600 cx: &mut ViewContext<Self>,
9601 ) -> Task<Result<Navigated>> {
9602 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9603 }
9604
9605 pub fn go_to_type_definition(
9606 &mut self,
9607 _: &GoToTypeDefinition,
9608 cx: &mut ViewContext<Self>,
9609 ) -> Task<Result<Navigated>> {
9610 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9611 }
9612
9613 pub fn go_to_definition_split(
9614 &mut self,
9615 _: &GoToDefinitionSplit,
9616 cx: &mut ViewContext<Self>,
9617 ) -> Task<Result<Navigated>> {
9618 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9619 }
9620
9621 pub fn go_to_type_definition_split(
9622 &mut self,
9623 _: &GoToTypeDefinitionSplit,
9624 cx: &mut ViewContext<Self>,
9625 ) -> Task<Result<Navigated>> {
9626 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9627 }
9628
9629 fn go_to_definition_of_kind(
9630 &mut self,
9631 kind: GotoDefinitionKind,
9632 split: bool,
9633 cx: &mut ViewContext<Self>,
9634 ) -> Task<Result<Navigated>> {
9635 let Some(provider) = self.semantics_provider.clone() else {
9636 return Task::ready(Ok(Navigated::No));
9637 };
9638 let buffer = self.buffer.read(cx);
9639 let head = self.selections.newest::<usize>(cx).head();
9640 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9641 text_anchor
9642 } else {
9643 return Task::ready(Ok(Navigated::No));
9644 };
9645
9646 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9647 return Task::ready(Ok(Navigated::No));
9648 };
9649
9650 cx.spawn(|editor, mut cx| async move {
9651 let definitions = definitions.await?;
9652 let navigated = editor
9653 .update(&mut cx, |editor, cx| {
9654 editor.navigate_to_hover_links(
9655 Some(kind),
9656 definitions
9657 .into_iter()
9658 .filter(|location| {
9659 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9660 })
9661 .map(HoverLink::Text)
9662 .collect::<Vec<_>>(),
9663 split,
9664 cx,
9665 )
9666 })?
9667 .await?;
9668 anyhow::Ok(navigated)
9669 })
9670 }
9671
9672 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9673 let position = self.selections.newest_anchor().head();
9674 let Some((buffer, buffer_position)) =
9675 self.buffer.read(cx).text_anchor_for_position(position, cx)
9676 else {
9677 return;
9678 };
9679
9680 cx.spawn(|editor, mut cx| async move {
9681 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9682 editor.update(&mut cx, |_, cx| {
9683 cx.open_url(&url);
9684 })
9685 } else {
9686 Ok(())
9687 }
9688 })
9689 .detach();
9690 }
9691
9692 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9693 let Some(workspace) = self.workspace() else {
9694 return;
9695 };
9696
9697 let position = self.selections.newest_anchor().head();
9698
9699 let Some((buffer, buffer_position)) =
9700 self.buffer.read(cx).text_anchor_for_position(position, cx)
9701 else {
9702 return;
9703 };
9704
9705 let project = self.project.clone();
9706
9707 cx.spawn(|_, mut cx| async move {
9708 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9709
9710 if let Some((_, path)) = result {
9711 workspace
9712 .update(&mut cx, |workspace, cx| {
9713 workspace.open_resolved_path(path, cx)
9714 })?
9715 .await?;
9716 }
9717 anyhow::Ok(())
9718 })
9719 .detach();
9720 }
9721
9722 pub(crate) fn navigate_to_hover_links(
9723 &mut self,
9724 kind: Option<GotoDefinitionKind>,
9725 mut definitions: Vec<HoverLink>,
9726 split: bool,
9727 cx: &mut ViewContext<Editor>,
9728 ) -> Task<Result<Navigated>> {
9729 // If there is one definition, just open it directly
9730 if definitions.len() == 1 {
9731 let definition = definitions.pop().unwrap();
9732
9733 enum TargetTaskResult {
9734 Location(Option<Location>),
9735 AlreadyNavigated,
9736 }
9737
9738 let target_task = match definition {
9739 HoverLink::Text(link) => {
9740 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9741 }
9742 HoverLink::InlayHint(lsp_location, server_id) => {
9743 let computation = self.compute_target_location(lsp_location, server_id, cx);
9744 cx.background_executor().spawn(async move {
9745 let location = computation.await?;
9746 Ok(TargetTaskResult::Location(location))
9747 })
9748 }
9749 HoverLink::Url(url) => {
9750 cx.open_url(&url);
9751 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9752 }
9753 HoverLink::File(path) => {
9754 if let Some(workspace) = self.workspace() {
9755 cx.spawn(|_, mut cx| async move {
9756 workspace
9757 .update(&mut cx, |workspace, cx| {
9758 workspace.open_resolved_path(path, cx)
9759 })?
9760 .await
9761 .map(|_| TargetTaskResult::AlreadyNavigated)
9762 })
9763 } else {
9764 Task::ready(Ok(TargetTaskResult::Location(None)))
9765 }
9766 }
9767 };
9768 cx.spawn(|editor, mut cx| async move {
9769 let target = match target_task.await.context("target resolution task")? {
9770 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9771 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9772 TargetTaskResult::Location(Some(target)) => target,
9773 };
9774
9775 editor.update(&mut cx, |editor, cx| {
9776 let Some(workspace) = editor.workspace() else {
9777 return Navigated::No;
9778 };
9779 let pane = workspace.read(cx).active_pane().clone();
9780
9781 let range = target.range.to_offset(target.buffer.read(cx));
9782 let range = editor.range_for_match(&range);
9783
9784 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9785 let buffer = target.buffer.read(cx);
9786 let range = check_multiline_range(buffer, range);
9787 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9788 s.select_ranges([range]);
9789 });
9790 } else {
9791 cx.window_context().defer(move |cx| {
9792 let target_editor: View<Self> =
9793 workspace.update(cx, |workspace, cx| {
9794 let pane = if split {
9795 workspace.adjacent_pane(cx)
9796 } else {
9797 workspace.active_pane().clone()
9798 };
9799
9800 workspace.open_project_item(
9801 pane,
9802 target.buffer.clone(),
9803 true,
9804 true,
9805 cx,
9806 )
9807 });
9808 target_editor.update(cx, |target_editor, cx| {
9809 // When selecting a definition in a different buffer, disable the nav history
9810 // to avoid creating a history entry at the previous cursor location.
9811 pane.update(cx, |pane, _| pane.disable_history());
9812 let buffer = target.buffer.read(cx);
9813 let range = check_multiline_range(buffer, range);
9814 target_editor.change_selections(
9815 Some(Autoscroll::focused()),
9816 cx,
9817 |s| {
9818 s.select_ranges([range]);
9819 },
9820 );
9821 pane.update(cx, |pane, _| pane.enable_history());
9822 });
9823 });
9824 }
9825 Navigated::Yes
9826 })
9827 })
9828 } else if !definitions.is_empty() {
9829 cx.spawn(|editor, mut cx| async move {
9830 let (title, location_tasks, workspace) = editor
9831 .update(&mut cx, |editor, cx| {
9832 let tab_kind = match kind {
9833 Some(GotoDefinitionKind::Implementation) => "Implementations",
9834 _ => "Definitions",
9835 };
9836 let title = definitions
9837 .iter()
9838 .find_map(|definition| match definition {
9839 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9840 let buffer = origin.buffer.read(cx);
9841 format!(
9842 "{} for {}",
9843 tab_kind,
9844 buffer
9845 .text_for_range(origin.range.clone())
9846 .collect::<String>()
9847 )
9848 }),
9849 HoverLink::InlayHint(_, _) => None,
9850 HoverLink::Url(_) => None,
9851 HoverLink::File(_) => None,
9852 })
9853 .unwrap_or(tab_kind.to_string());
9854 let location_tasks = definitions
9855 .into_iter()
9856 .map(|definition| match definition {
9857 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9858 HoverLink::InlayHint(lsp_location, server_id) => {
9859 editor.compute_target_location(lsp_location, server_id, cx)
9860 }
9861 HoverLink::Url(_) => Task::ready(Ok(None)),
9862 HoverLink::File(_) => Task::ready(Ok(None)),
9863 })
9864 .collect::<Vec<_>>();
9865 (title, location_tasks, editor.workspace().clone())
9866 })
9867 .context("location tasks preparation")?;
9868
9869 let locations = future::join_all(location_tasks)
9870 .await
9871 .into_iter()
9872 .filter_map(|location| location.transpose())
9873 .collect::<Result<_>>()
9874 .context("location tasks")?;
9875
9876 let Some(workspace) = workspace else {
9877 return Ok(Navigated::No);
9878 };
9879 let opened = workspace
9880 .update(&mut cx, |workspace, cx| {
9881 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9882 })
9883 .ok();
9884
9885 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9886 })
9887 } else {
9888 Task::ready(Ok(Navigated::No))
9889 }
9890 }
9891
9892 fn compute_target_location(
9893 &self,
9894 lsp_location: lsp::Location,
9895 server_id: LanguageServerId,
9896 cx: &mut ViewContext<Editor>,
9897 ) -> Task<anyhow::Result<Option<Location>>> {
9898 let Some(project) = self.project.clone() else {
9899 return Task::Ready(Some(Ok(None)));
9900 };
9901
9902 cx.spawn(move |editor, mut cx| async move {
9903 let location_task = editor.update(&mut cx, |editor, cx| {
9904 project.update(cx, |project, cx| {
9905 let language_server_name =
9906 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
9907 project
9908 .language_server_for_buffer(buffer.read(cx), server_id, cx)
9909 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
9910 });
9911 language_server_name.map(|language_server_name| {
9912 project.open_local_buffer_via_lsp(
9913 lsp_location.uri.clone(),
9914 server_id,
9915 language_server_name,
9916 cx,
9917 )
9918 })
9919 })
9920 })?;
9921 let location = match location_task {
9922 Some(task) => Some({
9923 let target_buffer_handle = task.await.context("open local buffer")?;
9924 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9925 let target_start = target_buffer
9926 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9927 let target_end = target_buffer
9928 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9929 target_buffer.anchor_after(target_start)
9930 ..target_buffer.anchor_before(target_end)
9931 })?;
9932 Location {
9933 buffer: target_buffer_handle,
9934 range,
9935 }
9936 }),
9937 None => None,
9938 };
9939 Ok(location)
9940 })
9941 }
9942
9943 pub fn find_all_references(
9944 &mut self,
9945 _: &FindAllReferences,
9946 cx: &mut ViewContext<Self>,
9947 ) -> Option<Task<Result<Navigated>>> {
9948 let multi_buffer = self.buffer.read(cx);
9949 let selection = self.selections.newest::<usize>(cx);
9950 let head = selection.head();
9951
9952 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9953 let head_anchor = multi_buffer_snapshot.anchor_at(
9954 head,
9955 if head < selection.tail() {
9956 Bias::Right
9957 } else {
9958 Bias::Left
9959 },
9960 );
9961
9962 match self
9963 .find_all_references_task_sources
9964 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9965 {
9966 Ok(_) => {
9967 log::info!(
9968 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9969 );
9970 return None;
9971 }
9972 Err(i) => {
9973 self.find_all_references_task_sources.insert(i, head_anchor);
9974 }
9975 }
9976
9977 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9978 let workspace = self.workspace()?;
9979 let project = workspace.read(cx).project().clone();
9980 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9981 Some(cx.spawn(|editor, mut cx| async move {
9982 let _cleanup = defer({
9983 let mut cx = cx.clone();
9984 move || {
9985 let _ = editor.update(&mut cx, |editor, _| {
9986 if let Ok(i) =
9987 editor
9988 .find_all_references_task_sources
9989 .binary_search_by(|anchor| {
9990 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9991 })
9992 {
9993 editor.find_all_references_task_sources.remove(i);
9994 }
9995 });
9996 }
9997 });
9998
9999 let locations = references.await?;
10000 if locations.is_empty() {
10001 return anyhow::Ok(Navigated::No);
10002 }
10003
10004 workspace.update(&mut cx, |workspace, cx| {
10005 let title = locations
10006 .first()
10007 .as_ref()
10008 .map(|location| {
10009 let buffer = location.buffer.read(cx);
10010 format!(
10011 "References to `{}`",
10012 buffer
10013 .text_for_range(location.range.clone())
10014 .collect::<String>()
10015 )
10016 })
10017 .unwrap();
10018 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10019 Navigated::Yes
10020 })
10021 }))
10022 }
10023
10024 /// Opens a multibuffer with the given project locations in it
10025 pub fn open_locations_in_multibuffer(
10026 workspace: &mut Workspace,
10027 mut locations: Vec<Location>,
10028 title: String,
10029 split: bool,
10030 cx: &mut ViewContext<Workspace>,
10031 ) {
10032 // If there are multiple definitions, open them in a multibuffer
10033 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10034 let mut locations = locations.into_iter().peekable();
10035 let mut ranges_to_highlight = Vec::new();
10036 let capability = workspace.project().read(cx).capability();
10037
10038 let excerpt_buffer = cx.new_model(|cx| {
10039 let mut multibuffer = MultiBuffer::new(capability);
10040 while let Some(location) = locations.next() {
10041 let buffer = location.buffer.read(cx);
10042 let mut ranges_for_buffer = Vec::new();
10043 let range = location.range.to_offset(buffer);
10044 ranges_for_buffer.push(range.clone());
10045
10046 while let Some(next_location) = locations.peek() {
10047 if next_location.buffer == location.buffer {
10048 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10049 locations.next();
10050 } else {
10051 break;
10052 }
10053 }
10054
10055 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10056 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10057 location.buffer.clone(),
10058 ranges_for_buffer,
10059 DEFAULT_MULTIBUFFER_CONTEXT,
10060 cx,
10061 ))
10062 }
10063
10064 multibuffer.with_title(title)
10065 });
10066
10067 let editor = cx.new_view(|cx| {
10068 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10069 });
10070 editor.update(cx, |editor, cx| {
10071 if let Some(first_range) = ranges_to_highlight.first() {
10072 editor.change_selections(None, cx, |selections| {
10073 selections.clear_disjoint();
10074 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10075 });
10076 }
10077 editor.highlight_background::<Self>(
10078 &ranges_to_highlight,
10079 |theme| theme.editor_highlighted_line_background,
10080 cx,
10081 );
10082 });
10083
10084 let item = Box::new(editor);
10085 let item_id = item.item_id();
10086
10087 if split {
10088 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10089 } else {
10090 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10091 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10092 pane.close_current_preview_item(cx)
10093 } else {
10094 None
10095 }
10096 });
10097 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10098 }
10099 workspace.active_pane().update(cx, |pane, cx| {
10100 pane.set_preview_item_id(Some(item_id), cx);
10101 });
10102 }
10103
10104 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10105 use language::ToOffset as _;
10106
10107 let provider = self.semantics_provider.clone()?;
10108 let selection = self.selections.newest_anchor().clone();
10109 let (cursor_buffer, cursor_buffer_position) = self
10110 .buffer
10111 .read(cx)
10112 .text_anchor_for_position(selection.head(), cx)?;
10113 let (tail_buffer, cursor_buffer_position_end) = self
10114 .buffer
10115 .read(cx)
10116 .text_anchor_for_position(selection.tail(), cx)?;
10117 if tail_buffer != cursor_buffer {
10118 return None;
10119 }
10120
10121 let snapshot = cursor_buffer.read(cx).snapshot();
10122 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10123 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10124 let prepare_rename = provider
10125 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10126 .unwrap_or_else(|| Task::ready(Ok(None)));
10127 drop(snapshot);
10128
10129 Some(cx.spawn(|this, mut cx| async move {
10130 let rename_range = if let Some(range) = prepare_rename.await? {
10131 Some(range)
10132 } else {
10133 this.update(&mut cx, |this, cx| {
10134 let buffer = this.buffer.read(cx).snapshot(cx);
10135 let mut buffer_highlights = this
10136 .document_highlights_for_position(selection.head(), &buffer)
10137 .filter(|highlight| {
10138 highlight.start.excerpt_id == selection.head().excerpt_id
10139 && highlight.end.excerpt_id == selection.head().excerpt_id
10140 });
10141 buffer_highlights
10142 .next()
10143 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10144 })?
10145 };
10146 if let Some(rename_range) = rename_range {
10147 this.update(&mut cx, |this, cx| {
10148 let snapshot = cursor_buffer.read(cx).snapshot();
10149 let rename_buffer_range = rename_range.to_offset(&snapshot);
10150 let cursor_offset_in_rename_range =
10151 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10152 let cursor_offset_in_rename_range_end =
10153 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10154
10155 this.take_rename(false, cx);
10156 let buffer = this.buffer.read(cx).read(cx);
10157 let cursor_offset = selection.head().to_offset(&buffer);
10158 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10159 let rename_end = rename_start + rename_buffer_range.len();
10160 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10161 let mut old_highlight_id = None;
10162 let old_name: Arc<str> = buffer
10163 .chunks(rename_start..rename_end, true)
10164 .map(|chunk| {
10165 if old_highlight_id.is_none() {
10166 old_highlight_id = chunk.syntax_highlight_id;
10167 }
10168 chunk.text
10169 })
10170 .collect::<String>()
10171 .into();
10172
10173 drop(buffer);
10174
10175 // Position the selection in the rename editor so that it matches the current selection.
10176 this.show_local_selections = false;
10177 let rename_editor = cx.new_view(|cx| {
10178 let mut editor = Editor::single_line(cx);
10179 editor.buffer.update(cx, |buffer, cx| {
10180 buffer.edit([(0..0, old_name.clone())], None, cx)
10181 });
10182 let rename_selection_range = match cursor_offset_in_rename_range
10183 .cmp(&cursor_offset_in_rename_range_end)
10184 {
10185 Ordering::Equal => {
10186 editor.select_all(&SelectAll, cx);
10187 return editor;
10188 }
10189 Ordering::Less => {
10190 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10191 }
10192 Ordering::Greater => {
10193 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10194 }
10195 };
10196 if rename_selection_range.end > old_name.len() {
10197 editor.select_all(&SelectAll, cx);
10198 } else {
10199 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10200 s.select_ranges([rename_selection_range]);
10201 });
10202 }
10203 editor
10204 });
10205 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10206 if e == &EditorEvent::Focused {
10207 cx.emit(EditorEvent::FocusedIn)
10208 }
10209 })
10210 .detach();
10211
10212 let write_highlights =
10213 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10214 let read_highlights =
10215 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10216 let ranges = write_highlights
10217 .iter()
10218 .flat_map(|(_, ranges)| ranges.iter())
10219 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10220 .cloned()
10221 .collect();
10222
10223 this.highlight_text::<Rename>(
10224 ranges,
10225 HighlightStyle {
10226 fade_out: Some(0.6),
10227 ..Default::default()
10228 },
10229 cx,
10230 );
10231 let rename_focus_handle = rename_editor.focus_handle(cx);
10232 cx.focus(&rename_focus_handle);
10233 let block_id = this.insert_blocks(
10234 [BlockProperties {
10235 style: BlockStyle::Flex,
10236 position: range.start,
10237 height: 1,
10238 render: Box::new({
10239 let rename_editor = rename_editor.clone();
10240 move |cx: &mut BlockContext| {
10241 let mut text_style = cx.editor_style.text.clone();
10242 if let Some(highlight_style) = old_highlight_id
10243 .and_then(|h| h.style(&cx.editor_style.syntax))
10244 {
10245 text_style = text_style.highlight(highlight_style);
10246 }
10247 div()
10248 .pl(cx.anchor_x)
10249 .child(EditorElement::new(
10250 &rename_editor,
10251 EditorStyle {
10252 background: cx.theme().system().transparent,
10253 local_player: cx.editor_style.local_player,
10254 text: text_style,
10255 scrollbar_width: cx.editor_style.scrollbar_width,
10256 syntax: cx.editor_style.syntax.clone(),
10257 status: cx.editor_style.status.clone(),
10258 inlay_hints_style: HighlightStyle {
10259 font_weight: Some(FontWeight::BOLD),
10260 ..make_inlay_hints_style(cx)
10261 },
10262 suggestions_style: HighlightStyle {
10263 color: Some(cx.theme().status().predictive),
10264 ..HighlightStyle::default()
10265 },
10266 ..EditorStyle::default()
10267 },
10268 ))
10269 .into_any_element()
10270 }
10271 }),
10272 disposition: BlockDisposition::Below,
10273 priority: 0,
10274 }],
10275 Some(Autoscroll::fit()),
10276 cx,
10277 )[0];
10278 this.pending_rename = Some(RenameState {
10279 range,
10280 old_name,
10281 editor: rename_editor,
10282 block_id,
10283 });
10284 })?;
10285 }
10286
10287 Ok(())
10288 }))
10289 }
10290
10291 pub fn confirm_rename(
10292 &mut self,
10293 _: &ConfirmRename,
10294 cx: &mut ViewContext<Self>,
10295 ) -> Option<Task<Result<()>>> {
10296 let rename = self.take_rename(false, cx)?;
10297 let workspace = self.workspace()?.downgrade();
10298 let (buffer, start) = self
10299 .buffer
10300 .read(cx)
10301 .text_anchor_for_position(rename.range.start, cx)?;
10302 let (end_buffer, _) = self
10303 .buffer
10304 .read(cx)
10305 .text_anchor_for_position(rename.range.end, cx)?;
10306 if buffer != end_buffer {
10307 return None;
10308 }
10309
10310 let old_name = rename.old_name;
10311 let new_name = rename.editor.read(cx).text(cx);
10312
10313 let rename = self.semantics_provider.as_ref()?.perform_rename(
10314 &buffer,
10315 start,
10316 new_name.clone(),
10317 cx,
10318 )?;
10319
10320 Some(cx.spawn(|editor, mut cx| async move {
10321 let project_transaction = rename.await?;
10322 Self::open_project_transaction(
10323 &editor,
10324 workspace,
10325 project_transaction,
10326 format!("Rename: {} → {}", old_name, new_name),
10327 cx.clone(),
10328 )
10329 .await?;
10330
10331 editor.update(&mut cx, |editor, cx| {
10332 editor.refresh_document_highlights(cx);
10333 })?;
10334 Ok(())
10335 }))
10336 }
10337
10338 fn take_rename(
10339 &mut self,
10340 moving_cursor: bool,
10341 cx: &mut ViewContext<Self>,
10342 ) -> Option<RenameState> {
10343 let rename = self.pending_rename.take()?;
10344 if rename.editor.focus_handle(cx).is_focused(cx) {
10345 cx.focus(&self.focus_handle);
10346 }
10347
10348 self.remove_blocks(
10349 [rename.block_id].into_iter().collect(),
10350 Some(Autoscroll::fit()),
10351 cx,
10352 );
10353 self.clear_highlights::<Rename>(cx);
10354 self.show_local_selections = true;
10355
10356 if moving_cursor {
10357 let rename_editor = rename.editor.read(cx);
10358 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
10359
10360 // Update the selection to match the position of the selection inside
10361 // the rename editor.
10362 let snapshot = self.buffer.read(cx).read(cx);
10363 let rename_range = rename.range.to_offset(&snapshot);
10364 let cursor_in_editor = snapshot
10365 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10366 .min(rename_range.end);
10367 drop(snapshot);
10368
10369 self.change_selections(None, cx, |s| {
10370 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10371 });
10372 } else {
10373 self.refresh_document_highlights(cx);
10374 }
10375
10376 Some(rename)
10377 }
10378
10379 pub fn pending_rename(&self) -> Option<&RenameState> {
10380 self.pending_rename.as_ref()
10381 }
10382
10383 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10384 let project = match &self.project {
10385 Some(project) => project.clone(),
10386 None => return None,
10387 };
10388
10389 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10390 }
10391
10392 fn format_selections(
10393 &mut self,
10394 _: &FormatSelections,
10395 cx: &mut ViewContext<Self>,
10396 ) -> Option<Task<Result<()>>> {
10397 let project = match &self.project {
10398 Some(project) => project.clone(),
10399 None => return None,
10400 };
10401
10402 let selections = self
10403 .selections
10404 .all_adjusted(cx)
10405 .into_iter()
10406 .filter(|s| !s.is_empty())
10407 .collect_vec();
10408
10409 Some(self.perform_format(
10410 project,
10411 FormatTrigger::Manual,
10412 FormatTarget::Ranges(selections),
10413 cx,
10414 ))
10415 }
10416
10417 fn perform_format(
10418 &mut self,
10419 project: Model<Project>,
10420 trigger: FormatTrigger,
10421 target: FormatTarget,
10422 cx: &mut ViewContext<Self>,
10423 ) -> Task<Result<()>> {
10424 let buffer = self.buffer().clone();
10425 let mut buffers = buffer.read(cx).all_buffers();
10426 if trigger == FormatTrigger::Save {
10427 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10428 }
10429
10430 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10431 let format = project.update(cx, |project, cx| {
10432 project.format(buffers, true, trigger, target, cx)
10433 });
10434
10435 cx.spawn(|_, mut cx| async move {
10436 let transaction = futures::select_biased! {
10437 () = timeout => {
10438 log::warn!("timed out waiting for formatting");
10439 None
10440 }
10441 transaction = format.log_err().fuse() => transaction,
10442 };
10443
10444 buffer
10445 .update(&mut cx, |buffer, cx| {
10446 if let Some(transaction) = transaction {
10447 if !buffer.is_singleton() {
10448 buffer.push_transaction(&transaction.0, cx);
10449 }
10450 }
10451
10452 cx.notify();
10453 })
10454 .ok();
10455
10456 Ok(())
10457 })
10458 }
10459
10460 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10461 if let Some(project) = self.project.clone() {
10462 self.buffer.update(cx, |multi_buffer, cx| {
10463 project.update(cx, |project, cx| {
10464 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10465 });
10466 })
10467 }
10468 }
10469
10470 fn cancel_language_server_work(
10471 &mut self,
10472 _: &CancelLanguageServerWork,
10473 cx: &mut ViewContext<Self>,
10474 ) {
10475 if let Some(project) = self.project.clone() {
10476 self.buffer.update(cx, |multi_buffer, cx| {
10477 project.update(cx, |project, cx| {
10478 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10479 });
10480 })
10481 }
10482 }
10483
10484 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10485 cx.show_character_palette();
10486 }
10487
10488 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10489 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10490 let buffer = self.buffer.read(cx).snapshot(cx);
10491 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10492 let is_valid = buffer
10493 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10494 .any(|entry| {
10495 entry.diagnostic.is_primary
10496 && !entry.range.is_empty()
10497 && entry.range.start == primary_range_start
10498 && entry.diagnostic.message == active_diagnostics.primary_message
10499 });
10500
10501 if is_valid != active_diagnostics.is_valid {
10502 active_diagnostics.is_valid = is_valid;
10503 let mut new_styles = HashMap::default();
10504 for (block_id, diagnostic) in &active_diagnostics.blocks {
10505 new_styles.insert(
10506 *block_id,
10507 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10508 );
10509 }
10510 self.display_map.update(cx, |display_map, _cx| {
10511 display_map.replace_blocks(new_styles)
10512 });
10513 }
10514 }
10515 }
10516
10517 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10518 self.dismiss_diagnostics(cx);
10519 let snapshot = self.snapshot(cx);
10520 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10521 let buffer = self.buffer.read(cx).snapshot(cx);
10522
10523 let mut primary_range = None;
10524 let mut primary_message = None;
10525 let mut group_end = Point::zero();
10526 let diagnostic_group = buffer
10527 .diagnostic_group::<MultiBufferPoint>(group_id)
10528 .filter_map(|entry| {
10529 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10530 && (entry.range.start.row == entry.range.end.row
10531 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10532 {
10533 return None;
10534 }
10535 if entry.range.end > group_end {
10536 group_end = entry.range.end;
10537 }
10538 if entry.diagnostic.is_primary {
10539 primary_range = Some(entry.range.clone());
10540 primary_message = Some(entry.diagnostic.message.clone());
10541 }
10542 Some(entry)
10543 })
10544 .collect::<Vec<_>>();
10545 let primary_range = primary_range?;
10546 let primary_message = primary_message?;
10547 let primary_range =
10548 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10549
10550 let blocks = display_map
10551 .insert_blocks(
10552 diagnostic_group.iter().map(|entry| {
10553 let diagnostic = entry.diagnostic.clone();
10554 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10555 BlockProperties {
10556 style: BlockStyle::Fixed,
10557 position: buffer.anchor_after(entry.range.start),
10558 height: message_height,
10559 render: diagnostic_block_renderer(diagnostic, None, true, true),
10560 disposition: BlockDisposition::Below,
10561 priority: 0,
10562 }
10563 }),
10564 cx,
10565 )
10566 .into_iter()
10567 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10568 .collect();
10569
10570 Some(ActiveDiagnosticGroup {
10571 primary_range,
10572 primary_message,
10573 group_id,
10574 blocks,
10575 is_valid: true,
10576 })
10577 });
10578 self.active_diagnostics.is_some()
10579 }
10580
10581 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10582 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10583 self.display_map.update(cx, |display_map, cx| {
10584 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10585 });
10586 cx.notify();
10587 }
10588 }
10589
10590 pub fn set_selections_from_remote(
10591 &mut self,
10592 selections: Vec<Selection<Anchor>>,
10593 pending_selection: Option<Selection<Anchor>>,
10594 cx: &mut ViewContext<Self>,
10595 ) {
10596 let old_cursor_position = self.selections.newest_anchor().head();
10597 self.selections.change_with(cx, |s| {
10598 s.select_anchors(selections);
10599 if let Some(pending_selection) = pending_selection {
10600 s.set_pending(pending_selection, SelectMode::Character);
10601 } else {
10602 s.clear_pending();
10603 }
10604 });
10605 self.selections_did_change(false, &old_cursor_position, true, cx);
10606 }
10607
10608 fn push_to_selection_history(&mut self) {
10609 self.selection_history.push(SelectionHistoryEntry {
10610 selections: self.selections.disjoint_anchors(),
10611 select_next_state: self.select_next_state.clone(),
10612 select_prev_state: self.select_prev_state.clone(),
10613 add_selections_state: self.add_selections_state.clone(),
10614 });
10615 }
10616
10617 pub fn transact(
10618 &mut self,
10619 cx: &mut ViewContext<Self>,
10620 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10621 ) -> Option<TransactionId> {
10622 self.start_transaction_at(Instant::now(), cx);
10623 update(self, cx);
10624 self.end_transaction_at(Instant::now(), cx)
10625 }
10626
10627 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10628 self.end_selection(cx);
10629 if let Some(tx_id) = self
10630 .buffer
10631 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10632 {
10633 self.selection_history
10634 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10635 cx.emit(EditorEvent::TransactionBegun {
10636 transaction_id: tx_id,
10637 })
10638 }
10639 }
10640
10641 fn end_transaction_at(
10642 &mut self,
10643 now: Instant,
10644 cx: &mut ViewContext<Self>,
10645 ) -> Option<TransactionId> {
10646 if let Some(transaction_id) = self
10647 .buffer
10648 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10649 {
10650 if let Some((_, end_selections)) =
10651 self.selection_history.transaction_mut(transaction_id)
10652 {
10653 *end_selections = Some(self.selections.disjoint_anchors());
10654 } else {
10655 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10656 }
10657
10658 cx.emit(EditorEvent::Edited { transaction_id });
10659 Some(transaction_id)
10660 } else {
10661 None
10662 }
10663 }
10664
10665 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10666 let selection = self.selections.newest::<Point>(cx);
10667
10668 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10669 let range = if selection.is_empty() {
10670 let point = selection.head().to_display_point(&display_map);
10671 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10672 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10673 .to_point(&display_map);
10674 start..end
10675 } else {
10676 selection.range()
10677 };
10678 if display_map.folds_in_range(range).next().is_some() {
10679 self.unfold_lines(&Default::default(), cx)
10680 } else {
10681 self.fold(&Default::default(), cx)
10682 }
10683 }
10684
10685 pub fn toggle_fold_recursive(
10686 &mut self,
10687 _: &actions::ToggleFoldRecursive,
10688 cx: &mut ViewContext<Self>,
10689 ) {
10690 let selection = self.selections.newest::<Point>(cx);
10691
10692 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10693 let range = if selection.is_empty() {
10694 let point = selection.head().to_display_point(&display_map);
10695 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10696 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10697 .to_point(&display_map);
10698 start..end
10699 } else {
10700 selection.range()
10701 };
10702 if display_map.folds_in_range(range).next().is_some() {
10703 self.unfold_recursive(&Default::default(), cx)
10704 } else {
10705 self.fold_recursive(&Default::default(), cx)
10706 }
10707 }
10708
10709 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10710 let mut fold_ranges = Vec::new();
10711 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10712 let selections = self.selections.all_adjusted(cx);
10713
10714 for selection in selections {
10715 let range = selection.range().sorted();
10716 let buffer_start_row = range.start.row;
10717
10718 if range.start.row != range.end.row {
10719 let mut found = false;
10720 let mut row = range.start.row;
10721 while row <= range.end.row {
10722 if let Some((foldable_range, fold_text)) =
10723 { display_map.foldable_range(MultiBufferRow(row)) }
10724 {
10725 found = true;
10726 row = foldable_range.end.row + 1;
10727 fold_ranges.push((foldable_range, fold_text));
10728 } else {
10729 row += 1
10730 }
10731 }
10732 if found {
10733 continue;
10734 }
10735 }
10736
10737 for row in (0..=range.start.row).rev() {
10738 if let Some((foldable_range, fold_text)) =
10739 display_map.foldable_range(MultiBufferRow(row))
10740 {
10741 if foldable_range.end.row >= buffer_start_row {
10742 fold_ranges.push((foldable_range, fold_text));
10743 if row <= range.start.row {
10744 break;
10745 }
10746 }
10747 }
10748 }
10749 }
10750
10751 self.fold_ranges(fold_ranges, true, cx);
10752 }
10753
10754 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10755 let mut fold_ranges = Vec::new();
10756 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10757
10758 for row in 0..display_map.max_buffer_row().0 {
10759 if let Some((foldable_range, fold_text)) =
10760 display_map.foldable_range(MultiBufferRow(row))
10761 {
10762 fold_ranges.push((foldable_range, fold_text));
10763 }
10764 }
10765
10766 self.fold_ranges(fold_ranges, true, cx);
10767 }
10768
10769 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10770 let mut fold_ranges = Vec::new();
10771 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10772 let selections = self.selections.all_adjusted(cx);
10773
10774 for selection in selections {
10775 let range = selection.range().sorted();
10776 let buffer_start_row = range.start.row;
10777
10778 if range.start.row != range.end.row {
10779 let mut found = false;
10780 for row in range.start.row..=range.end.row {
10781 if let Some((foldable_range, fold_text)) =
10782 { display_map.foldable_range(MultiBufferRow(row)) }
10783 {
10784 found = true;
10785 fold_ranges.push((foldable_range, fold_text));
10786 }
10787 }
10788 if found {
10789 continue;
10790 }
10791 }
10792
10793 for row in (0..=range.start.row).rev() {
10794 if let Some((foldable_range, fold_text)) =
10795 display_map.foldable_range(MultiBufferRow(row))
10796 {
10797 if foldable_range.end.row >= buffer_start_row {
10798 fold_ranges.push((foldable_range, fold_text));
10799 } else {
10800 break;
10801 }
10802 }
10803 }
10804 }
10805
10806 self.fold_ranges(fold_ranges, true, cx);
10807 }
10808
10809 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10810 let buffer_row = fold_at.buffer_row;
10811 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10812
10813 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10814 let autoscroll = self
10815 .selections
10816 .all::<Point>(cx)
10817 .iter()
10818 .any(|selection| fold_range.overlaps(&selection.range()));
10819
10820 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10821 }
10822 }
10823
10824 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10825 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10826 let buffer = &display_map.buffer_snapshot;
10827 let selections = self.selections.all::<Point>(cx);
10828 let ranges = selections
10829 .iter()
10830 .map(|s| {
10831 let range = s.display_range(&display_map).sorted();
10832 let mut start = range.start.to_point(&display_map);
10833 let mut end = range.end.to_point(&display_map);
10834 start.column = 0;
10835 end.column = buffer.line_len(MultiBufferRow(end.row));
10836 start..end
10837 })
10838 .collect::<Vec<_>>();
10839
10840 self.unfold_ranges(ranges, true, true, cx);
10841 }
10842
10843 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10844 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10845 let selections = self.selections.all::<Point>(cx);
10846 let ranges = selections
10847 .iter()
10848 .map(|s| {
10849 let mut range = s.display_range(&display_map).sorted();
10850 *range.start.column_mut() = 0;
10851 *range.end.column_mut() = display_map.line_len(range.end.row());
10852 let start = range.start.to_point(&display_map);
10853 let end = range.end.to_point(&display_map);
10854 start..end
10855 })
10856 .collect::<Vec<_>>();
10857
10858 self.unfold_ranges(ranges, true, true, cx);
10859 }
10860
10861 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10862 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10863
10864 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10865 ..Point::new(
10866 unfold_at.buffer_row.0,
10867 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10868 );
10869
10870 let autoscroll = self
10871 .selections
10872 .all::<Point>(cx)
10873 .iter()
10874 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10875
10876 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
10877 }
10878
10879 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10880 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10881 self.unfold_ranges(
10882 [Point::zero()..display_map.max_point().to_point(&display_map)],
10883 true,
10884 true,
10885 cx,
10886 );
10887 }
10888
10889 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10890 let selections = self.selections.all::<Point>(cx);
10891 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10892 let line_mode = self.selections.line_mode;
10893 let ranges = selections.into_iter().map(|s| {
10894 if line_mode {
10895 let start = Point::new(s.start.row, 0);
10896 let end = Point::new(
10897 s.end.row,
10898 display_map
10899 .buffer_snapshot
10900 .line_len(MultiBufferRow(s.end.row)),
10901 );
10902 (start..end, display_map.fold_placeholder.clone())
10903 } else {
10904 (s.start..s.end, display_map.fold_placeholder.clone())
10905 }
10906 });
10907 self.fold_ranges(ranges, true, cx);
10908 }
10909
10910 pub fn fold_ranges<T: ToOffset + Clone>(
10911 &mut self,
10912 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
10913 auto_scroll: bool,
10914 cx: &mut ViewContext<Self>,
10915 ) {
10916 let mut fold_ranges = Vec::new();
10917 let mut buffers_affected = HashMap::default();
10918 let multi_buffer = self.buffer().read(cx);
10919 for (fold_range, fold_text) in ranges {
10920 if let Some((_, buffer, _)) =
10921 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
10922 {
10923 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10924 };
10925 fold_ranges.push((fold_range, fold_text));
10926 }
10927
10928 let mut ranges = fold_ranges.into_iter().peekable();
10929 if ranges.peek().is_some() {
10930 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10931
10932 if auto_scroll {
10933 self.request_autoscroll(Autoscroll::fit(), cx);
10934 }
10935
10936 for buffer in buffers_affected.into_values() {
10937 self.sync_expanded_diff_hunks(buffer, cx);
10938 }
10939
10940 cx.notify();
10941
10942 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10943 // Clear diagnostics block when folding a range that contains it.
10944 let snapshot = self.snapshot(cx);
10945 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10946 drop(snapshot);
10947 self.active_diagnostics = Some(active_diagnostics);
10948 self.dismiss_diagnostics(cx);
10949 } else {
10950 self.active_diagnostics = Some(active_diagnostics);
10951 }
10952 }
10953
10954 self.scrollbar_marker_state.dirty = true;
10955 }
10956 }
10957
10958 pub fn unfold_ranges<T: ToOffset + Clone>(
10959 &mut self,
10960 ranges: impl IntoIterator<Item = Range<T>>,
10961 inclusive: bool,
10962 auto_scroll: bool,
10963 cx: &mut ViewContext<Self>,
10964 ) {
10965 let mut unfold_ranges = Vec::new();
10966 let mut buffers_affected = HashMap::default();
10967 let multi_buffer = self.buffer().read(cx);
10968 for range in ranges {
10969 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10970 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10971 };
10972 unfold_ranges.push(range);
10973 }
10974
10975 let mut ranges = unfold_ranges.into_iter().peekable();
10976 if ranges.peek().is_some() {
10977 self.display_map
10978 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10979 if auto_scroll {
10980 self.request_autoscroll(Autoscroll::fit(), cx);
10981 }
10982
10983 for buffer in buffers_affected.into_values() {
10984 self.sync_expanded_diff_hunks(buffer, cx);
10985 }
10986
10987 cx.notify();
10988 self.scrollbar_marker_state.dirty = true;
10989 self.active_indent_guides_state.dirty = true;
10990 }
10991 }
10992
10993 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10994 self.display_map.read(cx).fold_placeholder.clone()
10995 }
10996
10997 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10998 if hovered != self.gutter_hovered {
10999 self.gutter_hovered = hovered;
11000 cx.notify();
11001 }
11002 }
11003
11004 pub fn insert_blocks(
11005 &mut self,
11006 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11007 autoscroll: Option<Autoscroll>,
11008 cx: &mut ViewContext<Self>,
11009 ) -> Vec<CustomBlockId> {
11010 let blocks = self
11011 .display_map
11012 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11013 if let Some(autoscroll) = autoscroll {
11014 self.request_autoscroll(autoscroll, cx);
11015 }
11016 cx.notify();
11017 blocks
11018 }
11019
11020 pub fn resize_blocks(
11021 &mut self,
11022 heights: HashMap<CustomBlockId, u32>,
11023 autoscroll: Option<Autoscroll>,
11024 cx: &mut ViewContext<Self>,
11025 ) {
11026 self.display_map
11027 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11028 if let Some(autoscroll) = autoscroll {
11029 self.request_autoscroll(autoscroll, cx);
11030 }
11031 cx.notify();
11032 }
11033
11034 pub fn replace_blocks(
11035 &mut self,
11036 renderers: HashMap<CustomBlockId, RenderBlock>,
11037 autoscroll: Option<Autoscroll>,
11038 cx: &mut ViewContext<Self>,
11039 ) {
11040 self.display_map
11041 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11042 if let Some(autoscroll) = autoscroll {
11043 self.request_autoscroll(autoscroll, cx);
11044 }
11045 cx.notify();
11046 }
11047
11048 pub fn remove_blocks(
11049 &mut self,
11050 block_ids: HashSet<CustomBlockId>,
11051 autoscroll: Option<Autoscroll>,
11052 cx: &mut ViewContext<Self>,
11053 ) {
11054 self.display_map.update(cx, |display_map, cx| {
11055 display_map.remove_blocks(block_ids, cx)
11056 });
11057 if let Some(autoscroll) = autoscroll {
11058 self.request_autoscroll(autoscroll, cx);
11059 }
11060 cx.notify();
11061 }
11062
11063 pub fn row_for_block(
11064 &self,
11065 block_id: CustomBlockId,
11066 cx: &mut ViewContext<Self>,
11067 ) -> Option<DisplayRow> {
11068 self.display_map
11069 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11070 }
11071
11072 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11073 self.focused_block = Some(focused_block);
11074 }
11075
11076 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11077 self.focused_block.take()
11078 }
11079
11080 pub fn insert_creases(
11081 &mut self,
11082 creases: impl IntoIterator<Item = Crease>,
11083 cx: &mut ViewContext<Self>,
11084 ) -> Vec<CreaseId> {
11085 self.display_map
11086 .update(cx, |map, cx| map.insert_creases(creases, cx))
11087 }
11088
11089 pub fn remove_creases(
11090 &mut self,
11091 ids: impl IntoIterator<Item = CreaseId>,
11092 cx: &mut ViewContext<Self>,
11093 ) {
11094 self.display_map
11095 .update(cx, |map, cx| map.remove_creases(ids, cx));
11096 }
11097
11098 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11099 self.display_map
11100 .update(cx, |map, cx| map.snapshot(cx))
11101 .longest_row()
11102 }
11103
11104 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11105 self.display_map
11106 .update(cx, |map, cx| map.snapshot(cx))
11107 .max_point()
11108 }
11109
11110 pub fn text(&self, cx: &AppContext) -> String {
11111 self.buffer.read(cx).read(cx).text()
11112 }
11113
11114 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11115 let text = self.text(cx);
11116 let text = text.trim();
11117
11118 if text.is_empty() {
11119 return None;
11120 }
11121
11122 Some(text.to_string())
11123 }
11124
11125 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11126 self.transact(cx, |this, cx| {
11127 this.buffer
11128 .read(cx)
11129 .as_singleton()
11130 .expect("you can only call set_text on editors for singleton buffers")
11131 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11132 });
11133 }
11134
11135 pub fn display_text(&self, cx: &mut AppContext) -> String {
11136 self.display_map
11137 .update(cx, |map, cx| map.snapshot(cx))
11138 .text()
11139 }
11140
11141 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11142 let mut wrap_guides = smallvec::smallvec![];
11143
11144 if self.show_wrap_guides == Some(false) {
11145 return wrap_guides;
11146 }
11147
11148 let settings = self.buffer.read(cx).settings_at(0, cx);
11149 if settings.show_wrap_guides {
11150 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11151 wrap_guides.push((soft_wrap as usize, true));
11152 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11153 wrap_guides.push((soft_wrap as usize, true));
11154 }
11155 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11156 }
11157
11158 wrap_guides
11159 }
11160
11161 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11162 let settings = self.buffer.read(cx).settings_at(0, cx);
11163 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11164 match mode {
11165 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11166 SoftWrap::None
11167 }
11168 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11169 language_settings::SoftWrap::PreferredLineLength => {
11170 SoftWrap::Column(settings.preferred_line_length)
11171 }
11172 language_settings::SoftWrap::Bounded => {
11173 SoftWrap::Bounded(settings.preferred_line_length)
11174 }
11175 }
11176 }
11177
11178 pub fn set_soft_wrap_mode(
11179 &mut self,
11180 mode: language_settings::SoftWrap,
11181 cx: &mut ViewContext<Self>,
11182 ) {
11183 self.soft_wrap_mode_override = Some(mode);
11184 cx.notify();
11185 }
11186
11187 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11188 let rem_size = cx.rem_size();
11189 self.display_map.update(cx, |map, cx| {
11190 map.set_font(
11191 style.text.font(),
11192 style.text.font_size.to_pixels(rem_size),
11193 cx,
11194 )
11195 });
11196 self.style = Some(style);
11197 }
11198
11199 pub fn style(&self) -> Option<&EditorStyle> {
11200 self.style.as_ref()
11201 }
11202
11203 // Called by the element. This method is not designed to be called outside of the editor
11204 // element's layout code because it does not notify when rewrapping is computed synchronously.
11205 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11206 self.display_map
11207 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11208 }
11209
11210 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11211 if self.soft_wrap_mode_override.is_some() {
11212 self.soft_wrap_mode_override.take();
11213 } else {
11214 let soft_wrap = match self.soft_wrap_mode(cx) {
11215 SoftWrap::GitDiff => return,
11216 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11217 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11218 language_settings::SoftWrap::None
11219 }
11220 };
11221 self.soft_wrap_mode_override = Some(soft_wrap);
11222 }
11223 cx.notify();
11224 }
11225
11226 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11227 let Some(workspace) = self.workspace() else {
11228 return;
11229 };
11230 let fs = workspace.read(cx).app_state().fs.clone();
11231 let current_show = TabBarSettings::get_global(cx).show;
11232 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11233 setting.show = Some(!current_show);
11234 });
11235 }
11236
11237 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11238 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11239 self.buffer
11240 .read(cx)
11241 .settings_at(0, cx)
11242 .indent_guides
11243 .enabled
11244 });
11245 self.show_indent_guides = Some(!currently_enabled);
11246 cx.notify();
11247 }
11248
11249 fn should_show_indent_guides(&self) -> Option<bool> {
11250 self.show_indent_guides
11251 }
11252
11253 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11254 let mut editor_settings = EditorSettings::get_global(cx).clone();
11255 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11256 EditorSettings::override_global(editor_settings, cx);
11257 }
11258
11259 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11260 self.use_relative_line_numbers
11261 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11262 }
11263
11264 pub fn toggle_relative_line_numbers(
11265 &mut self,
11266 _: &ToggleRelativeLineNumbers,
11267 cx: &mut ViewContext<Self>,
11268 ) {
11269 let is_relative = self.should_use_relative_line_numbers(cx);
11270 self.set_relative_line_number(Some(!is_relative), cx)
11271 }
11272
11273 pub fn set_relative_line_number(
11274 &mut self,
11275 is_relative: Option<bool>,
11276 cx: &mut ViewContext<Self>,
11277 ) {
11278 self.use_relative_line_numbers = is_relative;
11279 cx.notify();
11280 }
11281
11282 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11283 self.show_gutter = show_gutter;
11284 cx.notify();
11285 }
11286
11287 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11288 self.show_line_numbers = Some(show_line_numbers);
11289 cx.notify();
11290 }
11291
11292 pub fn set_show_git_diff_gutter(
11293 &mut self,
11294 show_git_diff_gutter: bool,
11295 cx: &mut ViewContext<Self>,
11296 ) {
11297 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11298 cx.notify();
11299 }
11300
11301 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11302 self.show_code_actions = Some(show_code_actions);
11303 cx.notify();
11304 }
11305
11306 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11307 self.show_runnables = Some(show_runnables);
11308 cx.notify();
11309 }
11310
11311 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11312 if self.display_map.read(cx).masked != masked {
11313 self.display_map.update(cx, |map, _| map.masked = masked);
11314 }
11315 cx.notify()
11316 }
11317
11318 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11319 self.show_wrap_guides = Some(show_wrap_guides);
11320 cx.notify();
11321 }
11322
11323 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11324 self.show_indent_guides = Some(show_indent_guides);
11325 cx.notify();
11326 }
11327
11328 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11329 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11330 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11331 if let Some(dir) = file.abs_path(cx).parent() {
11332 return Some(dir.to_owned());
11333 }
11334 }
11335
11336 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11337 return Some(project_path.path.to_path_buf());
11338 }
11339 }
11340
11341 None
11342 }
11343
11344 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11345 self.active_excerpt(cx)?
11346 .1
11347 .read(cx)
11348 .file()
11349 .and_then(|f| f.as_local())
11350 }
11351
11352 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11353 if let Some(target) = self.target_file(cx) {
11354 cx.reveal_path(&target.abs_path(cx));
11355 }
11356 }
11357
11358 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11359 if let Some(file) = self.target_file(cx) {
11360 if let Some(path) = file.abs_path(cx).to_str() {
11361 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11362 }
11363 }
11364 }
11365
11366 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11367 if let Some(file) = self.target_file(cx) {
11368 if let Some(path) = file.path().to_str() {
11369 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11370 }
11371 }
11372 }
11373
11374 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11375 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11376
11377 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11378 self.start_git_blame(true, cx);
11379 }
11380
11381 cx.notify();
11382 }
11383
11384 pub fn toggle_git_blame_inline(
11385 &mut self,
11386 _: &ToggleGitBlameInline,
11387 cx: &mut ViewContext<Self>,
11388 ) {
11389 self.toggle_git_blame_inline_internal(true, cx);
11390 cx.notify();
11391 }
11392
11393 pub fn git_blame_inline_enabled(&self) -> bool {
11394 self.git_blame_inline_enabled
11395 }
11396
11397 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11398 self.show_selection_menu = self
11399 .show_selection_menu
11400 .map(|show_selections_menu| !show_selections_menu)
11401 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11402
11403 cx.notify();
11404 }
11405
11406 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11407 self.show_selection_menu
11408 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11409 }
11410
11411 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11412 if let Some(project) = self.project.as_ref() {
11413 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11414 return;
11415 };
11416
11417 if buffer.read(cx).file().is_none() {
11418 return;
11419 }
11420
11421 let focused = self.focus_handle(cx).contains_focused(cx);
11422
11423 let project = project.clone();
11424 let blame =
11425 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11426 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11427 self.blame = Some(blame);
11428 }
11429 }
11430
11431 fn toggle_git_blame_inline_internal(
11432 &mut self,
11433 user_triggered: bool,
11434 cx: &mut ViewContext<Self>,
11435 ) {
11436 if self.git_blame_inline_enabled {
11437 self.git_blame_inline_enabled = false;
11438 self.show_git_blame_inline = false;
11439 self.show_git_blame_inline_delay_task.take();
11440 } else {
11441 self.git_blame_inline_enabled = true;
11442 self.start_git_blame_inline(user_triggered, cx);
11443 }
11444
11445 cx.notify();
11446 }
11447
11448 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11449 self.start_git_blame(user_triggered, cx);
11450
11451 if ProjectSettings::get_global(cx)
11452 .git
11453 .inline_blame_delay()
11454 .is_some()
11455 {
11456 self.start_inline_blame_timer(cx);
11457 } else {
11458 self.show_git_blame_inline = true
11459 }
11460 }
11461
11462 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11463 self.blame.as_ref()
11464 }
11465
11466 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11467 self.show_git_blame_gutter && self.has_blame_entries(cx)
11468 }
11469
11470 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11471 self.show_git_blame_inline
11472 && self.focus_handle.is_focused(cx)
11473 && !self.newest_selection_head_on_empty_line(cx)
11474 && self.has_blame_entries(cx)
11475 }
11476
11477 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11478 self.blame()
11479 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11480 }
11481
11482 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11483 let cursor_anchor = self.selections.newest_anchor().head();
11484
11485 let snapshot = self.buffer.read(cx).snapshot(cx);
11486 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11487
11488 snapshot.line_len(buffer_row) == 0
11489 }
11490
11491 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
11492 let (path, selection, repo) = maybe!({
11493 let project_handle = self.project.as_ref()?.clone();
11494 let project = project_handle.read(cx);
11495
11496 let selection = self.selections.newest::<Point>(cx);
11497 let selection_range = selection.range();
11498
11499 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11500 (buffer, selection_range.start.row..selection_range.end.row)
11501 } else {
11502 let buffer_ranges = self
11503 .buffer()
11504 .read(cx)
11505 .range_to_buffer_ranges(selection_range, cx);
11506
11507 let (buffer, range, _) = if selection.reversed {
11508 buffer_ranges.first()
11509 } else {
11510 buffer_ranges.last()
11511 }?;
11512
11513 let snapshot = buffer.read(cx).snapshot();
11514 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11515 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11516 (buffer.clone(), selection)
11517 };
11518
11519 let path = buffer
11520 .read(cx)
11521 .file()?
11522 .as_local()?
11523 .path()
11524 .to_str()?
11525 .to_string();
11526 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
11527 Some((path, selection, repo))
11528 })
11529 .ok_or_else(|| anyhow!("unable to open git repository"))?;
11530
11531 const REMOTE_NAME: &str = "origin";
11532 let origin_url = repo
11533 .remote_url(REMOTE_NAME)
11534 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
11535 let sha = repo
11536 .head_sha()
11537 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
11538
11539 let (provider, remote) =
11540 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
11541 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
11542
11543 Ok(provider.build_permalink(
11544 remote,
11545 BuildPermalinkParams {
11546 sha: &sha,
11547 path: &path,
11548 selection: Some(selection),
11549 },
11550 ))
11551 }
11552
11553 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11554 let permalink = self.get_permalink_to_line(cx);
11555
11556 match permalink {
11557 Ok(permalink) => {
11558 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11559 }
11560 Err(err) => {
11561 let message = format!("Failed to copy permalink: {err}");
11562
11563 Err::<(), anyhow::Error>(err).log_err();
11564
11565 if let Some(workspace) = self.workspace() {
11566 workspace.update(cx, |workspace, cx| {
11567 struct CopyPermalinkToLine;
11568
11569 workspace.show_toast(
11570 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
11571 cx,
11572 )
11573 })
11574 }
11575 }
11576 }
11577 }
11578
11579 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11580 if let Some(file) = self.target_file(cx) {
11581 if let Some(path) = file.path().to_str() {
11582 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11583 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11584 }
11585 }
11586 }
11587
11588 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11589 let permalink = self.get_permalink_to_line(cx);
11590
11591 match permalink {
11592 Ok(permalink) => {
11593 cx.open_url(permalink.as_ref());
11594 }
11595 Err(err) => {
11596 let message = format!("Failed to open permalink: {err}");
11597
11598 Err::<(), anyhow::Error>(err).log_err();
11599
11600 if let Some(workspace) = self.workspace() {
11601 workspace.update(cx, |workspace, cx| {
11602 struct OpenPermalinkToLine;
11603
11604 workspace.show_toast(
11605 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
11606 cx,
11607 )
11608 })
11609 }
11610 }
11611 }
11612 }
11613
11614 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11615 /// last highlight added will be used.
11616 ///
11617 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11618 pub fn highlight_rows<T: 'static>(
11619 &mut self,
11620 range: Range<Anchor>,
11621 color: Hsla,
11622 should_autoscroll: bool,
11623 cx: &mut ViewContext<Self>,
11624 ) {
11625 let snapshot = self.buffer().read(cx).snapshot(cx);
11626 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11627 let ix = row_highlights.binary_search_by(|highlight| {
11628 Ordering::Equal
11629 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11630 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11631 });
11632
11633 if let Err(mut ix) = ix {
11634 let index = post_inc(&mut self.highlight_order);
11635
11636 // If this range intersects with the preceding highlight, then merge it with
11637 // the preceding highlight. Otherwise insert a new highlight.
11638 let mut merged = false;
11639 if ix > 0 {
11640 let prev_highlight = &mut row_highlights[ix - 1];
11641 if prev_highlight
11642 .range
11643 .end
11644 .cmp(&range.start, &snapshot)
11645 .is_ge()
11646 {
11647 ix -= 1;
11648 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11649 prev_highlight.range.end = range.end;
11650 }
11651 merged = true;
11652 prev_highlight.index = index;
11653 prev_highlight.color = color;
11654 prev_highlight.should_autoscroll = should_autoscroll;
11655 }
11656 }
11657
11658 if !merged {
11659 row_highlights.insert(
11660 ix,
11661 RowHighlight {
11662 range: range.clone(),
11663 index,
11664 color,
11665 should_autoscroll,
11666 },
11667 );
11668 }
11669
11670 // If any of the following highlights intersect with this one, merge them.
11671 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11672 let highlight = &row_highlights[ix];
11673 if next_highlight
11674 .range
11675 .start
11676 .cmp(&highlight.range.end, &snapshot)
11677 .is_le()
11678 {
11679 if next_highlight
11680 .range
11681 .end
11682 .cmp(&highlight.range.end, &snapshot)
11683 .is_gt()
11684 {
11685 row_highlights[ix].range.end = next_highlight.range.end;
11686 }
11687 row_highlights.remove(ix + 1);
11688 } else {
11689 break;
11690 }
11691 }
11692 }
11693 }
11694
11695 /// Remove any highlighted row ranges of the given type that intersect the
11696 /// given ranges.
11697 pub fn remove_highlighted_rows<T: 'static>(
11698 &mut self,
11699 ranges_to_remove: Vec<Range<Anchor>>,
11700 cx: &mut ViewContext<Self>,
11701 ) {
11702 let snapshot = self.buffer().read(cx).snapshot(cx);
11703 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11704 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11705 row_highlights.retain(|highlight| {
11706 while let Some(range_to_remove) = ranges_to_remove.peek() {
11707 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11708 Ordering::Less | Ordering::Equal => {
11709 ranges_to_remove.next();
11710 }
11711 Ordering::Greater => {
11712 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11713 Ordering::Less | Ordering::Equal => {
11714 return false;
11715 }
11716 Ordering::Greater => break,
11717 }
11718 }
11719 }
11720 }
11721
11722 true
11723 })
11724 }
11725
11726 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11727 pub fn clear_row_highlights<T: 'static>(&mut self) {
11728 self.highlighted_rows.remove(&TypeId::of::<T>());
11729 }
11730
11731 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11732 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11733 self.highlighted_rows
11734 .get(&TypeId::of::<T>())
11735 .map_or(&[] as &[_], |vec| vec.as_slice())
11736 .iter()
11737 .map(|highlight| (highlight.range.clone(), highlight.color))
11738 }
11739
11740 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11741 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11742 /// Allows to ignore certain kinds of highlights.
11743 pub fn highlighted_display_rows(
11744 &mut self,
11745 cx: &mut WindowContext,
11746 ) -> BTreeMap<DisplayRow, Hsla> {
11747 let snapshot = self.snapshot(cx);
11748 let mut used_highlight_orders = HashMap::default();
11749 self.highlighted_rows
11750 .iter()
11751 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11752 .fold(
11753 BTreeMap::<DisplayRow, Hsla>::new(),
11754 |mut unique_rows, highlight| {
11755 let start = highlight.range.start.to_display_point(&snapshot);
11756 let end = highlight.range.end.to_display_point(&snapshot);
11757 let start_row = start.row().0;
11758 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11759 && end.column() == 0
11760 {
11761 end.row().0.saturating_sub(1)
11762 } else {
11763 end.row().0
11764 };
11765 for row in start_row..=end_row {
11766 let used_index =
11767 used_highlight_orders.entry(row).or_insert(highlight.index);
11768 if highlight.index >= *used_index {
11769 *used_index = highlight.index;
11770 unique_rows.insert(DisplayRow(row), highlight.color);
11771 }
11772 }
11773 unique_rows
11774 },
11775 )
11776 }
11777
11778 pub fn highlighted_display_row_for_autoscroll(
11779 &self,
11780 snapshot: &DisplaySnapshot,
11781 ) -> Option<DisplayRow> {
11782 self.highlighted_rows
11783 .values()
11784 .flat_map(|highlighted_rows| highlighted_rows.iter())
11785 .filter_map(|highlight| {
11786 if highlight.should_autoscroll {
11787 Some(highlight.range.start.to_display_point(snapshot).row())
11788 } else {
11789 None
11790 }
11791 })
11792 .min()
11793 }
11794
11795 pub fn set_search_within_ranges(
11796 &mut self,
11797 ranges: &[Range<Anchor>],
11798 cx: &mut ViewContext<Self>,
11799 ) {
11800 self.highlight_background::<SearchWithinRange>(
11801 ranges,
11802 |colors| colors.editor_document_highlight_read_background,
11803 cx,
11804 )
11805 }
11806
11807 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11808 self.breadcrumb_header = Some(new_header);
11809 }
11810
11811 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11812 self.clear_background_highlights::<SearchWithinRange>(cx);
11813 }
11814
11815 pub fn highlight_background<T: 'static>(
11816 &mut self,
11817 ranges: &[Range<Anchor>],
11818 color_fetcher: fn(&ThemeColors) -> Hsla,
11819 cx: &mut ViewContext<Self>,
11820 ) {
11821 self.background_highlights
11822 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11823 self.scrollbar_marker_state.dirty = true;
11824 cx.notify();
11825 }
11826
11827 pub fn clear_background_highlights<T: 'static>(
11828 &mut self,
11829 cx: &mut ViewContext<Self>,
11830 ) -> Option<BackgroundHighlight> {
11831 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11832 if !text_highlights.1.is_empty() {
11833 self.scrollbar_marker_state.dirty = true;
11834 cx.notify();
11835 }
11836 Some(text_highlights)
11837 }
11838
11839 pub fn highlight_gutter<T: 'static>(
11840 &mut self,
11841 ranges: &[Range<Anchor>],
11842 color_fetcher: fn(&AppContext) -> Hsla,
11843 cx: &mut ViewContext<Self>,
11844 ) {
11845 self.gutter_highlights
11846 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11847 cx.notify();
11848 }
11849
11850 pub fn clear_gutter_highlights<T: 'static>(
11851 &mut self,
11852 cx: &mut ViewContext<Self>,
11853 ) -> Option<GutterHighlight> {
11854 cx.notify();
11855 self.gutter_highlights.remove(&TypeId::of::<T>())
11856 }
11857
11858 #[cfg(feature = "test-support")]
11859 pub fn all_text_background_highlights(
11860 &mut self,
11861 cx: &mut ViewContext<Self>,
11862 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11863 let snapshot = self.snapshot(cx);
11864 let buffer = &snapshot.buffer_snapshot;
11865 let start = buffer.anchor_before(0);
11866 let end = buffer.anchor_after(buffer.len());
11867 let theme = cx.theme().colors();
11868 self.background_highlights_in_range(start..end, &snapshot, theme)
11869 }
11870
11871 #[cfg(feature = "test-support")]
11872 pub fn search_background_highlights(
11873 &mut self,
11874 cx: &mut ViewContext<Self>,
11875 ) -> Vec<Range<Point>> {
11876 let snapshot = self.buffer().read(cx).snapshot(cx);
11877
11878 let highlights = self
11879 .background_highlights
11880 .get(&TypeId::of::<items::BufferSearchHighlights>());
11881
11882 if let Some((_color, ranges)) = highlights {
11883 ranges
11884 .iter()
11885 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11886 .collect_vec()
11887 } else {
11888 vec![]
11889 }
11890 }
11891
11892 fn document_highlights_for_position<'a>(
11893 &'a self,
11894 position: Anchor,
11895 buffer: &'a MultiBufferSnapshot,
11896 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11897 let read_highlights = self
11898 .background_highlights
11899 .get(&TypeId::of::<DocumentHighlightRead>())
11900 .map(|h| &h.1);
11901 let write_highlights = self
11902 .background_highlights
11903 .get(&TypeId::of::<DocumentHighlightWrite>())
11904 .map(|h| &h.1);
11905 let left_position = position.bias_left(buffer);
11906 let right_position = position.bias_right(buffer);
11907 read_highlights
11908 .into_iter()
11909 .chain(write_highlights)
11910 .flat_map(move |ranges| {
11911 let start_ix = match ranges.binary_search_by(|probe| {
11912 let cmp = probe.end.cmp(&left_position, buffer);
11913 if cmp.is_ge() {
11914 Ordering::Greater
11915 } else {
11916 Ordering::Less
11917 }
11918 }) {
11919 Ok(i) | Err(i) => i,
11920 };
11921
11922 ranges[start_ix..]
11923 .iter()
11924 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11925 })
11926 }
11927
11928 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11929 self.background_highlights
11930 .get(&TypeId::of::<T>())
11931 .map_or(false, |(_, highlights)| !highlights.is_empty())
11932 }
11933
11934 pub fn background_highlights_in_range(
11935 &self,
11936 search_range: Range<Anchor>,
11937 display_snapshot: &DisplaySnapshot,
11938 theme: &ThemeColors,
11939 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11940 let mut results = Vec::new();
11941 for (color_fetcher, ranges) in self.background_highlights.values() {
11942 let color = color_fetcher(theme);
11943 let start_ix = match ranges.binary_search_by(|probe| {
11944 let cmp = probe
11945 .end
11946 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11947 if cmp.is_gt() {
11948 Ordering::Greater
11949 } else {
11950 Ordering::Less
11951 }
11952 }) {
11953 Ok(i) | Err(i) => i,
11954 };
11955 for range in &ranges[start_ix..] {
11956 if range
11957 .start
11958 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11959 .is_ge()
11960 {
11961 break;
11962 }
11963
11964 let start = range.start.to_display_point(display_snapshot);
11965 let end = range.end.to_display_point(display_snapshot);
11966 results.push((start..end, color))
11967 }
11968 }
11969 results
11970 }
11971
11972 pub fn background_highlight_row_ranges<T: 'static>(
11973 &self,
11974 search_range: Range<Anchor>,
11975 display_snapshot: &DisplaySnapshot,
11976 count: usize,
11977 ) -> Vec<RangeInclusive<DisplayPoint>> {
11978 let mut results = Vec::new();
11979 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11980 return vec![];
11981 };
11982
11983 let start_ix = match ranges.binary_search_by(|probe| {
11984 let cmp = probe
11985 .end
11986 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11987 if cmp.is_gt() {
11988 Ordering::Greater
11989 } else {
11990 Ordering::Less
11991 }
11992 }) {
11993 Ok(i) | Err(i) => i,
11994 };
11995 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11996 if let (Some(start_display), Some(end_display)) = (start, end) {
11997 results.push(
11998 start_display.to_display_point(display_snapshot)
11999 ..=end_display.to_display_point(display_snapshot),
12000 );
12001 }
12002 };
12003 let mut start_row: Option<Point> = None;
12004 let mut end_row: Option<Point> = None;
12005 if ranges.len() > count {
12006 return Vec::new();
12007 }
12008 for range in &ranges[start_ix..] {
12009 if range
12010 .start
12011 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12012 .is_ge()
12013 {
12014 break;
12015 }
12016 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12017 if let Some(current_row) = &end_row {
12018 if end.row == current_row.row {
12019 continue;
12020 }
12021 }
12022 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12023 if start_row.is_none() {
12024 assert_eq!(end_row, None);
12025 start_row = Some(start);
12026 end_row = Some(end);
12027 continue;
12028 }
12029 if let Some(current_end) = end_row.as_mut() {
12030 if start.row > current_end.row + 1 {
12031 push_region(start_row, end_row);
12032 start_row = Some(start);
12033 end_row = Some(end);
12034 } else {
12035 // Merge two hunks.
12036 *current_end = end;
12037 }
12038 } else {
12039 unreachable!();
12040 }
12041 }
12042 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12043 push_region(start_row, end_row);
12044 results
12045 }
12046
12047 pub fn gutter_highlights_in_range(
12048 &self,
12049 search_range: Range<Anchor>,
12050 display_snapshot: &DisplaySnapshot,
12051 cx: &AppContext,
12052 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12053 let mut results = Vec::new();
12054 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12055 let color = color_fetcher(cx);
12056 let start_ix = match ranges.binary_search_by(|probe| {
12057 let cmp = probe
12058 .end
12059 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12060 if cmp.is_gt() {
12061 Ordering::Greater
12062 } else {
12063 Ordering::Less
12064 }
12065 }) {
12066 Ok(i) | Err(i) => i,
12067 };
12068 for range in &ranges[start_ix..] {
12069 if range
12070 .start
12071 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12072 .is_ge()
12073 {
12074 break;
12075 }
12076
12077 let start = range.start.to_display_point(display_snapshot);
12078 let end = range.end.to_display_point(display_snapshot);
12079 results.push((start..end, color))
12080 }
12081 }
12082 results
12083 }
12084
12085 /// Get the text ranges corresponding to the redaction query
12086 pub fn redacted_ranges(
12087 &self,
12088 search_range: Range<Anchor>,
12089 display_snapshot: &DisplaySnapshot,
12090 cx: &WindowContext,
12091 ) -> Vec<Range<DisplayPoint>> {
12092 display_snapshot
12093 .buffer_snapshot
12094 .redacted_ranges(search_range, |file| {
12095 if let Some(file) = file {
12096 file.is_private()
12097 && EditorSettings::get(
12098 Some(SettingsLocation {
12099 worktree_id: file.worktree_id(cx),
12100 path: file.path().as_ref(),
12101 }),
12102 cx,
12103 )
12104 .redact_private_values
12105 } else {
12106 false
12107 }
12108 })
12109 .map(|range| {
12110 range.start.to_display_point(display_snapshot)
12111 ..range.end.to_display_point(display_snapshot)
12112 })
12113 .collect()
12114 }
12115
12116 pub fn highlight_text<T: 'static>(
12117 &mut self,
12118 ranges: Vec<Range<Anchor>>,
12119 style: HighlightStyle,
12120 cx: &mut ViewContext<Self>,
12121 ) {
12122 self.display_map.update(cx, |map, _| {
12123 map.highlight_text(TypeId::of::<T>(), ranges, style)
12124 });
12125 cx.notify();
12126 }
12127
12128 pub(crate) fn highlight_inlays<T: 'static>(
12129 &mut self,
12130 highlights: Vec<InlayHighlight>,
12131 style: HighlightStyle,
12132 cx: &mut ViewContext<Self>,
12133 ) {
12134 self.display_map.update(cx, |map, _| {
12135 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12136 });
12137 cx.notify();
12138 }
12139
12140 pub fn text_highlights<'a, T: 'static>(
12141 &'a self,
12142 cx: &'a AppContext,
12143 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12144 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12145 }
12146
12147 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12148 let cleared = self
12149 .display_map
12150 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12151 if cleared {
12152 cx.notify();
12153 }
12154 }
12155
12156 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12157 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12158 && self.focus_handle.is_focused(cx)
12159 }
12160
12161 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12162 self.show_cursor_when_unfocused = is_enabled;
12163 cx.notify();
12164 }
12165
12166 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12167 cx.notify();
12168 }
12169
12170 fn on_buffer_event(
12171 &mut self,
12172 multibuffer: Model<MultiBuffer>,
12173 event: &multi_buffer::Event,
12174 cx: &mut ViewContext<Self>,
12175 ) {
12176 match event {
12177 multi_buffer::Event::Edited {
12178 singleton_buffer_edited,
12179 } => {
12180 self.scrollbar_marker_state.dirty = true;
12181 self.active_indent_guides_state.dirty = true;
12182 self.refresh_active_diagnostics(cx);
12183 self.refresh_code_actions(cx);
12184 if self.has_active_inline_completion(cx) {
12185 self.update_visible_inline_completion(cx);
12186 }
12187 cx.emit(EditorEvent::BufferEdited);
12188 cx.emit(SearchEvent::MatchesInvalidated);
12189 if *singleton_buffer_edited {
12190 if let Some(project) = &self.project {
12191 let project = project.read(cx);
12192 #[allow(clippy::mutable_key_type)]
12193 let languages_affected = multibuffer
12194 .read(cx)
12195 .all_buffers()
12196 .into_iter()
12197 .filter_map(|buffer| {
12198 let buffer = buffer.read(cx);
12199 let language = buffer.language()?;
12200 if project.is_local()
12201 && project.language_servers_for_buffer(buffer, cx).count() == 0
12202 {
12203 None
12204 } else {
12205 Some(language)
12206 }
12207 })
12208 .cloned()
12209 .collect::<HashSet<_>>();
12210 if !languages_affected.is_empty() {
12211 self.refresh_inlay_hints(
12212 InlayHintRefreshReason::BufferEdited(languages_affected),
12213 cx,
12214 );
12215 }
12216 }
12217 }
12218
12219 let Some(project) = &self.project else { return };
12220 let (telemetry, is_via_ssh) = {
12221 let project = project.read(cx);
12222 let telemetry = project.client().telemetry().clone();
12223 let is_via_ssh = project.is_via_ssh();
12224 (telemetry, is_via_ssh)
12225 };
12226 refresh_linked_ranges(self, cx);
12227 telemetry.log_edit_event("editor", is_via_ssh);
12228 }
12229 multi_buffer::Event::ExcerptsAdded {
12230 buffer,
12231 predecessor,
12232 excerpts,
12233 } => {
12234 self.tasks_update_task = Some(self.refresh_runnables(cx));
12235 cx.emit(EditorEvent::ExcerptsAdded {
12236 buffer: buffer.clone(),
12237 predecessor: *predecessor,
12238 excerpts: excerpts.clone(),
12239 });
12240 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12241 }
12242 multi_buffer::Event::ExcerptsRemoved { ids } => {
12243 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12244 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12245 }
12246 multi_buffer::Event::ExcerptsEdited { ids } => {
12247 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12248 }
12249 multi_buffer::Event::ExcerptsExpanded { ids } => {
12250 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12251 }
12252 multi_buffer::Event::Reparsed(buffer_id) => {
12253 self.tasks_update_task = Some(self.refresh_runnables(cx));
12254
12255 cx.emit(EditorEvent::Reparsed(*buffer_id));
12256 }
12257 multi_buffer::Event::LanguageChanged(buffer_id) => {
12258 linked_editing_ranges::refresh_linked_ranges(self, cx);
12259 cx.emit(EditorEvent::Reparsed(*buffer_id));
12260 cx.notify();
12261 }
12262 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12263 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12264 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12265 cx.emit(EditorEvent::TitleChanged)
12266 }
12267 multi_buffer::Event::DiffBaseChanged => {
12268 self.scrollbar_marker_state.dirty = true;
12269 cx.emit(EditorEvent::DiffBaseChanged);
12270 cx.notify();
12271 }
12272 multi_buffer::Event::DiffUpdated { buffer } => {
12273 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12274 cx.notify();
12275 }
12276 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12277 multi_buffer::Event::DiagnosticsUpdated => {
12278 self.refresh_active_diagnostics(cx);
12279 self.scrollbar_marker_state.dirty = true;
12280 cx.notify();
12281 }
12282 _ => {}
12283 };
12284 }
12285
12286 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12287 cx.notify();
12288 }
12289
12290 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12291 self.tasks_update_task = Some(self.refresh_runnables(cx));
12292 self.refresh_inline_completion(true, false, cx);
12293 self.refresh_inlay_hints(
12294 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12295 self.selections.newest_anchor().head(),
12296 &self.buffer.read(cx).snapshot(cx),
12297 cx,
12298 )),
12299 cx,
12300 );
12301
12302 let old_cursor_shape = self.cursor_shape;
12303
12304 {
12305 let editor_settings = EditorSettings::get_global(cx);
12306 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12307 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12308 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12309 }
12310
12311 if old_cursor_shape != self.cursor_shape {
12312 cx.emit(EditorEvent::CursorShapeChanged);
12313 }
12314
12315 let project_settings = ProjectSettings::get_global(cx);
12316 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12317
12318 if self.mode == EditorMode::Full {
12319 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12320 if self.git_blame_inline_enabled != inline_blame_enabled {
12321 self.toggle_git_blame_inline_internal(false, cx);
12322 }
12323 }
12324
12325 cx.notify();
12326 }
12327
12328 pub fn set_searchable(&mut self, searchable: bool) {
12329 self.searchable = searchable;
12330 }
12331
12332 pub fn searchable(&self) -> bool {
12333 self.searchable
12334 }
12335
12336 fn open_proposed_changes_editor(
12337 &mut self,
12338 _: &OpenProposedChangesEditor,
12339 cx: &mut ViewContext<Self>,
12340 ) {
12341 let Some(workspace) = self.workspace() else {
12342 cx.propagate();
12343 return;
12344 };
12345
12346 let buffer = self.buffer.read(cx);
12347 let mut new_selections_by_buffer = HashMap::default();
12348 for selection in self.selections.all::<usize>(cx) {
12349 for (buffer, range, _) in
12350 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12351 {
12352 let mut range = range.to_point(buffer.read(cx));
12353 range.start.column = 0;
12354 range.end.column = buffer.read(cx).line_len(range.end.row);
12355 new_selections_by_buffer
12356 .entry(buffer)
12357 .or_insert(Vec::new())
12358 .push(range)
12359 }
12360 }
12361
12362 let proposed_changes_buffers = new_selections_by_buffer
12363 .into_iter()
12364 .map(|(buffer, ranges)| ProposedChangesBuffer { buffer, ranges })
12365 .collect::<Vec<_>>();
12366 let proposed_changes_editor = cx.new_view(|cx| {
12367 ProposedChangesEditor::new(proposed_changes_buffers, self.project.clone(), cx)
12368 });
12369
12370 cx.window_context().defer(move |cx| {
12371 workspace.update(cx, |workspace, cx| {
12372 workspace.active_pane().update(cx, |pane, cx| {
12373 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12374 });
12375 });
12376 });
12377 }
12378
12379 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12380 self.open_excerpts_common(true, cx)
12381 }
12382
12383 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12384 self.open_excerpts_common(false, cx)
12385 }
12386
12387 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
12388 let buffer = self.buffer.read(cx);
12389 if buffer.is_singleton() {
12390 cx.propagate();
12391 return;
12392 }
12393
12394 let Some(workspace) = self.workspace() else {
12395 cx.propagate();
12396 return;
12397 };
12398
12399 let mut new_selections_by_buffer = HashMap::default();
12400 for selection in self.selections.all::<usize>(cx) {
12401 for (mut buffer_handle, mut range, _) in
12402 buffer.range_to_buffer_ranges(selection.range(), cx)
12403 {
12404 // When editing branch buffers, jump to the corresponding location
12405 // in their base buffer.
12406 let buffer = buffer_handle.read(cx);
12407 if let Some(base_buffer) = buffer.diff_base_buffer() {
12408 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12409 buffer_handle = base_buffer;
12410 }
12411
12412 if selection.reversed {
12413 mem::swap(&mut range.start, &mut range.end);
12414 }
12415 new_selections_by_buffer
12416 .entry(buffer_handle)
12417 .or_insert(Vec::new())
12418 .push(range)
12419 }
12420 }
12421
12422 // We defer the pane interaction because we ourselves are a workspace item
12423 // and activating a new item causes the pane to call a method on us reentrantly,
12424 // which panics if we're on the stack.
12425 cx.window_context().defer(move |cx| {
12426 workspace.update(cx, |workspace, cx| {
12427 let pane = if split {
12428 workspace.adjacent_pane(cx)
12429 } else {
12430 workspace.active_pane().clone()
12431 };
12432
12433 for (buffer, ranges) in new_selections_by_buffer {
12434 let editor =
12435 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12436 editor.update(cx, |editor, cx| {
12437 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
12438 s.select_ranges(ranges);
12439 });
12440 });
12441 }
12442 })
12443 });
12444 }
12445
12446 fn jump(
12447 &mut self,
12448 path: ProjectPath,
12449 position: Point,
12450 anchor: language::Anchor,
12451 offset_from_top: u32,
12452 cx: &mut ViewContext<Self>,
12453 ) {
12454 let workspace = self.workspace();
12455 cx.spawn(|_, mut cx| async move {
12456 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
12457 let editor = workspace.update(&mut cx, |workspace, cx| {
12458 // Reset the preview item id before opening the new item
12459 workspace.active_pane().update(cx, |pane, cx| {
12460 pane.set_preview_item_id(None, cx);
12461 });
12462 workspace.open_path_preview(path, None, true, true, cx)
12463 })?;
12464 let editor = editor
12465 .await?
12466 .downcast::<Editor>()
12467 .ok_or_else(|| anyhow!("opened item was not an editor"))?
12468 .downgrade();
12469 editor.update(&mut cx, |editor, cx| {
12470 let buffer = editor
12471 .buffer()
12472 .read(cx)
12473 .as_singleton()
12474 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
12475 let buffer = buffer.read(cx);
12476 let cursor = if buffer.can_resolve(&anchor) {
12477 language::ToPoint::to_point(&anchor, buffer)
12478 } else {
12479 buffer.clip_point(position, Bias::Left)
12480 };
12481
12482 let nav_history = editor.nav_history.take();
12483 editor.change_selections(
12484 Some(Autoscroll::top_relative(offset_from_top as usize)),
12485 cx,
12486 |s| {
12487 s.select_ranges([cursor..cursor]);
12488 },
12489 );
12490 editor.nav_history = nav_history;
12491
12492 anyhow::Ok(())
12493 })??;
12494
12495 anyhow::Ok(())
12496 })
12497 .detach_and_log_err(cx);
12498 }
12499
12500 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12501 let snapshot = self.buffer.read(cx).read(cx);
12502 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12503 Some(
12504 ranges
12505 .iter()
12506 .map(move |range| {
12507 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12508 })
12509 .collect(),
12510 )
12511 }
12512
12513 fn selection_replacement_ranges(
12514 &self,
12515 range: Range<OffsetUtf16>,
12516 cx: &AppContext,
12517 ) -> Vec<Range<OffsetUtf16>> {
12518 let selections = self.selections.all::<OffsetUtf16>(cx);
12519 let newest_selection = selections
12520 .iter()
12521 .max_by_key(|selection| selection.id)
12522 .unwrap();
12523 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12524 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12525 let snapshot = self.buffer.read(cx).read(cx);
12526 selections
12527 .into_iter()
12528 .map(|mut selection| {
12529 selection.start.0 =
12530 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12531 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12532 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12533 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12534 })
12535 .collect()
12536 }
12537
12538 fn report_editor_event(
12539 &self,
12540 operation: &'static str,
12541 file_extension: Option<String>,
12542 cx: &AppContext,
12543 ) {
12544 if cfg!(any(test, feature = "test-support")) {
12545 return;
12546 }
12547
12548 let Some(project) = &self.project else { return };
12549
12550 // If None, we are in a file without an extension
12551 let file = self
12552 .buffer
12553 .read(cx)
12554 .as_singleton()
12555 .and_then(|b| b.read(cx).file());
12556 let file_extension = file_extension.or(file
12557 .as_ref()
12558 .and_then(|file| Path::new(file.file_name(cx)).extension())
12559 .and_then(|e| e.to_str())
12560 .map(|a| a.to_string()));
12561
12562 let vim_mode = cx
12563 .global::<SettingsStore>()
12564 .raw_user_settings()
12565 .get("vim_mode")
12566 == Some(&serde_json::Value::Bool(true));
12567
12568 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12569 == language::language_settings::InlineCompletionProvider::Copilot;
12570 let copilot_enabled_for_language = self
12571 .buffer
12572 .read(cx)
12573 .settings_at(0, cx)
12574 .show_inline_completions;
12575
12576 let project = project.read(cx);
12577 let telemetry = project.client().telemetry().clone();
12578 telemetry.report_editor_event(
12579 file_extension,
12580 vim_mode,
12581 operation,
12582 copilot_enabled,
12583 copilot_enabled_for_language,
12584 project.is_via_ssh(),
12585 )
12586 }
12587
12588 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12589 /// with each line being an array of {text, highlight} objects.
12590 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12591 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12592 return;
12593 };
12594
12595 #[derive(Serialize)]
12596 struct Chunk<'a> {
12597 text: String,
12598 highlight: Option<&'a str>,
12599 }
12600
12601 let snapshot = buffer.read(cx).snapshot();
12602 let range = self
12603 .selected_text_range(false, cx)
12604 .and_then(|selection| {
12605 if selection.range.is_empty() {
12606 None
12607 } else {
12608 Some(selection.range)
12609 }
12610 })
12611 .unwrap_or_else(|| 0..snapshot.len());
12612
12613 let chunks = snapshot.chunks(range, true);
12614 let mut lines = Vec::new();
12615 let mut line: VecDeque<Chunk> = VecDeque::new();
12616
12617 let Some(style) = self.style.as_ref() else {
12618 return;
12619 };
12620
12621 for chunk in chunks {
12622 let highlight = chunk
12623 .syntax_highlight_id
12624 .and_then(|id| id.name(&style.syntax));
12625 let mut chunk_lines = chunk.text.split('\n').peekable();
12626 while let Some(text) = chunk_lines.next() {
12627 let mut merged_with_last_token = false;
12628 if let Some(last_token) = line.back_mut() {
12629 if last_token.highlight == highlight {
12630 last_token.text.push_str(text);
12631 merged_with_last_token = true;
12632 }
12633 }
12634
12635 if !merged_with_last_token {
12636 line.push_back(Chunk {
12637 text: text.into(),
12638 highlight,
12639 });
12640 }
12641
12642 if chunk_lines.peek().is_some() {
12643 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12644 line.pop_front();
12645 }
12646 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12647 line.pop_back();
12648 }
12649
12650 lines.push(mem::take(&mut line));
12651 }
12652 }
12653 }
12654
12655 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12656 return;
12657 };
12658 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12659 }
12660
12661 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12662 &self.inlay_hint_cache
12663 }
12664
12665 pub fn replay_insert_event(
12666 &mut self,
12667 text: &str,
12668 relative_utf16_range: Option<Range<isize>>,
12669 cx: &mut ViewContext<Self>,
12670 ) {
12671 if !self.input_enabled {
12672 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12673 return;
12674 }
12675 if let Some(relative_utf16_range) = relative_utf16_range {
12676 let selections = self.selections.all::<OffsetUtf16>(cx);
12677 self.change_selections(None, cx, |s| {
12678 let new_ranges = selections.into_iter().map(|range| {
12679 let start = OffsetUtf16(
12680 range
12681 .head()
12682 .0
12683 .saturating_add_signed(relative_utf16_range.start),
12684 );
12685 let end = OffsetUtf16(
12686 range
12687 .head()
12688 .0
12689 .saturating_add_signed(relative_utf16_range.end),
12690 );
12691 start..end
12692 });
12693 s.select_ranges(new_ranges);
12694 });
12695 }
12696
12697 self.handle_input(text, cx);
12698 }
12699
12700 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12701 let Some(provider) = self.semantics_provider.as_ref() else {
12702 return false;
12703 };
12704
12705 let mut supports = false;
12706 self.buffer().read(cx).for_each_buffer(|buffer| {
12707 supports |= provider.supports_inlay_hints(buffer, cx);
12708 });
12709 supports
12710 }
12711
12712 pub fn focus(&self, cx: &mut WindowContext) {
12713 cx.focus(&self.focus_handle)
12714 }
12715
12716 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12717 self.focus_handle.is_focused(cx)
12718 }
12719
12720 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12721 cx.emit(EditorEvent::Focused);
12722
12723 if let Some(descendant) = self
12724 .last_focused_descendant
12725 .take()
12726 .and_then(|descendant| descendant.upgrade())
12727 {
12728 cx.focus(&descendant);
12729 } else {
12730 if let Some(blame) = self.blame.as_ref() {
12731 blame.update(cx, GitBlame::focus)
12732 }
12733
12734 self.blink_manager.update(cx, BlinkManager::enable);
12735 self.show_cursor_names(cx);
12736 self.buffer.update(cx, |buffer, cx| {
12737 buffer.finalize_last_transaction(cx);
12738 if self.leader_peer_id.is_none() {
12739 buffer.set_active_selections(
12740 &self.selections.disjoint_anchors(),
12741 self.selections.line_mode,
12742 self.cursor_shape,
12743 cx,
12744 );
12745 }
12746 });
12747 }
12748 }
12749
12750 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12751 cx.emit(EditorEvent::FocusedIn)
12752 }
12753
12754 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12755 if event.blurred != self.focus_handle {
12756 self.last_focused_descendant = Some(event.blurred);
12757 }
12758 }
12759
12760 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12761 self.blink_manager.update(cx, BlinkManager::disable);
12762 self.buffer
12763 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12764
12765 if let Some(blame) = self.blame.as_ref() {
12766 blame.update(cx, GitBlame::blur)
12767 }
12768 if !self.hover_state.focused(cx) {
12769 hide_hover(self, cx);
12770 }
12771
12772 self.hide_context_menu(cx);
12773 cx.emit(EditorEvent::Blurred);
12774 cx.notify();
12775 }
12776
12777 pub fn register_action<A: Action>(
12778 &mut self,
12779 listener: impl Fn(&A, &mut WindowContext) + 'static,
12780 ) -> Subscription {
12781 let id = self.next_editor_action_id.post_inc();
12782 let listener = Arc::new(listener);
12783 self.editor_actions.borrow_mut().insert(
12784 id,
12785 Box::new(move |cx| {
12786 let cx = cx.window_context();
12787 let listener = listener.clone();
12788 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12789 let action = action.downcast_ref().unwrap();
12790 if phase == DispatchPhase::Bubble {
12791 listener(action, cx)
12792 }
12793 })
12794 }),
12795 );
12796
12797 let editor_actions = self.editor_actions.clone();
12798 Subscription::new(move || {
12799 editor_actions.borrow_mut().remove(&id);
12800 })
12801 }
12802
12803 pub fn file_header_size(&self) -> u32 {
12804 self.file_header_size
12805 }
12806
12807 pub fn revert(
12808 &mut self,
12809 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12810 cx: &mut ViewContext<Self>,
12811 ) {
12812 self.buffer().update(cx, |multi_buffer, cx| {
12813 for (buffer_id, changes) in revert_changes {
12814 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12815 buffer.update(cx, |buffer, cx| {
12816 buffer.edit(
12817 changes.into_iter().map(|(range, text)| {
12818 (range, text.to_string().map(Arc::<str>::from))
12819 }),
12820 None,
12821 cx,
12822 );
12823 });
12824 }
12825 }
12826 });
12827 self.change_selections(None, cx, |selections| selections.refresh());
12828 }
12829
12830 pub fn to_pixel_point(
12831 &mut self,
12832 source: multi_buffer::Anchor,
12833 editor_snapshot: &EditorSnapshot,
12834 cx: &mut ViewContext<Self>,
12835 ) -> Option<gpui::Point<Pixels>> {
12836 let source_point = source.to_display_point(editor_snapshot);
12837 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12838 }
12839
12840 pub fn display_to_pixel_point(
12841 &mut self,
12842 source: DisplayPoint,
12843 editor_snapshot: &EditorSnapshot,
12844 cx: &mut ViewContext<Self>,
12845 ) -> Option<gpui::Point<Pixels>> {
12846 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12847 let text_layout_details = self.text_layout_details(cx);
12848 let scroll_top = text_layout_details
12849 .scroll_anchor
12850 .scroll_position(editor_snapshot)
12851 .y;
12852
12853 if source.row().as_f32() < scroll_top.floor() {
12854 return None;
12855 }
12856 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12857 let source_y = line_height * (source.row().as_f32() - scroll_top);
12858 Some(gpui::Point::new(source_x, source_y))
12859 }
12860
12861 pub fn has_active_completions_menu(&self) -> bool {
12862 self.context_menu.read().as_ref().map_or(false, |menu| {
12863 menu.visible() && matches!(menu, ContextMenu::Completions(_))
12864 })
12865 }
12866
12867 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12868 self.addons
12869 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12870 }
12871
12872 pub fn unregister_addon<T: Addon>(&mut self) {
12873 self.addons.remove(&std::any::TypeId::of::<T>());
12874 }
12875
12876 pub fn addon<T: Addon>(&self) -> Option<&T> {
12877 let type_id = std::any::TypeId::of::<T>();
12878 self.addons
12879 .get(&type_id)
12880 .and_then(|item| item.to_any().downcast_ref::<T>())
12881 }
12882}
12883
12884fn hunks_for_selections(
12885 multi_buffer_snapshot: &MultiBufferSnapshot,
12886 selections: &[Selection<Anchor>],
12887) -> Vec<MultiBufferDiffHunk> {
12888 let buffer_rows_for_selections = selections.iter().map(|selection| {
12889 let head = selection.head();
12890 let tail = selection.tail();
12891 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
12892 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
12893 if start > end {
12894 end..start
12895 } else {
12896 start..end
12897 }
12898 });
12899
12900 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
12901}
12902
12903pub fn hunks_for_rows(
12904 rows: impl Iterator<Item = Range<MultiBufferRow>>,
12905 multi_buffer_snapshot: &MultiBufferSnapshot,
12906) -> Vec<MultiBufferDiffHunk> {
12907 let mut hunks = Vec::new();
12908 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
12909 HashMap::default();
12910 for selected_multi_buffer_rows in rows {
12911 let query_rows =
12912 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
12913 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
12914 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
12915 // when the caret is just above or just below the deleted hunk.
12916 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
12917 let related_to_selection = if allow_adjacent {
12918 hunk.row_range.overlaps(&query_rows)
12919 || hunk.row_range.start == query_rows.end
12920 || hunk.row_range.end == query_rows.start
12921 } else {
12922 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
12923 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
12924 hunk.row_range.overlaps(&selected_multi_buffer_rows)
12925 || selected_multi_buffer_rows.end == hunk.row_range.start
12926 };
12927 if related_to_selection {
12928 if !processed_buffer_rows
12929 .entry(hunk.buffer_id)
12930 .or_default()
12931 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
12932 {
12933 continue;
12934 }
12935 hunks.push(hunk);
12936 }
12937 }
12938 }
12939
12940 hunks
12941}
12942
12943pub trait CollaborationHub {
12944 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
12945 fn user_participant_indices<'a>(
12946 &self,
12947 cx: &'a AppContext,
12948 ) -> &'a HashMap<u64, ParticipantIndex>;
12949 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
12950}
12951
12952impl CollaborationHub for Model<Project> {
12953 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
12954 self.read(cx).collaborators()
12955 }
12956
12957 fn user_participant_indices<'a>(
12958 &self,
12959 cx: &'a AppContext,
12960 ) -> &'a HashMap<u64, ParticipantIndex> {
12961 self.read(cx).user_store().read(cx).participant_indices()
12962 }
12963
12964 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
12965 let this = self.read(cx);
12966 let user_ids = this.collaborators().values().map(|c| c.user_id);
12967 this.user_store().read_with(cx, |user_store, cx| {
12968 user_store.participant_names(user_ids, cx)
12969 })
12970 }
12971}
12972
12973pub trait SemanticsProvider {
12974 fn hover(
12975 &self,
12976 buffer: &Model<Buffer>,
12977 position: text::Anchor,
12978 cx: &mut AppContext,
12979 ) -> Option<Task<Vec<project::Hover>>>;
12980
12981 fn inlay_hints(
12982 &self,
12983 buffer_handle: Model<Buffer>,
12984 range: Range<text::Anchor>,
12985 cx: &mut AppContext,
12986 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
12987
12988 fn resolve_inlay_hint(
12989 &self,
12990 hint: InlayHint,
12991 buffer_handle: Model<Buffer>,
12992 server_id: LanguageServerId,
12993 cx: &mut AppContext,
12994 ) -> Option<Task<anyhow::Result<InlayHint>>>;
12995
12996 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
12997
12998 fn document_highlights(
12999 &self,
13000 buffer: &Model<Buffer>,
13001 position: text::Anchor,
13002 cx: &mut AppContext,
13003 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13004
13005 fn definitions(
13006 &self,
13007 buffer: &Model<Buffer>,
13008 position: text::Anchor,
13009 kind: GotoDefinitionKind,
13010 cx: &mut AppContext,
13011 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13012
13013 fn range_for_rename(
13014 &self,
13015 buffer: &Model<Buffer>,
13016 position: text::Anchor,
13017 cx: &mut AppContext,
13018 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13019
13020 fn perform_rename(
13021 &self,
13022 buffer: &Model<Buffer>,
13023 position: text::Anchor,
13024 new_name: String,
13025 cx: &mut AppContext,
13026 ) -> Option<Task<Result<ProjectTransaction>>>;
13027}
13028
13029pub trait CompletionProvider {
13030 fn completions(
13031 &self,
13032 buffer: &Model<Buffer>,
13033 buffer_position: text::Anchor,
13034 trigger: CompletionContext,
13035 cx: &mut ViewContext<Editor>,
13036 ) -> Task<Result<Vec<Completion>>>;
13037
13038 fn resolve_completions(
13039 &self,
13040 buffer: Model<Buffer>,
13041 completion_indices: Vec<usize>,
13042 completions: Arc<RwLock<Box<[Completion]>>>,
13043 cx: &mut ViewContext<Editor>,
13044 ) -> Task<Result<bool>>;
13045
13046 fn apply_additional_edits_for_completion(
13047 &self,
13048 buffer: Model<Buffer>,
13049 completion: Completion,
13050 push_to_history: bool,
13051 cx: &mut ViewContext<Editor>,
13052 ) -> Task<Result<Option<language::Transaction>>>;
13053
13054 fn is_completion_trigger(
13055 &self,
13056 buffer: &Model<Buffer>,
13057 position: language::Anchor,
13058 text: &str,
13059 trigger_in_words: bool,
13060 cx: &mut ViewContext<Editor>,
13061 ) -> bool;
13062
13063 fn sort_completions(&self) -> bool {
13064 true
13065 }
13066}
13067
13068pub trait CodeActionProvider {
13069 fn code_actions(
13070 &self,
13071 buffer: &Model<Buffer>,
13072 range: Range<text::Anchor>,
13073 cx: &mut WindowContext,
13074 ) -> Task<Result<Vec<CodeAction>>>;
13075
13076 fn apply_code_action(
13077 &self,
13078 buffer_handle: Model<Buffer>,
13079 action: CodeAction,
13080 excerpt_id: ExcerptId,
13081 push_to_history: bool,
13082 cx: &mut WindowContext,
13083 ) -> Task<Result<ProjectTransaction>>;
13084}
13085
13086impl CodeActionProvider for Model<Project> {
13087 fn code_actions(
13088 &self,
13089 buffer: &Model<Buffer>,
13090 range: Range<text::Anchor>,
13091 cx: &mut WindowContext,
13092 ) -> Task<Result<Vec<CodeAction>>> {
13093 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
13094 }
13095
13096 fn apply_code_action(
13097 &self,
13098 buffer_handle: Model<Buffer>,
13099 action: CodeAction,
13100 _excerpt_id: ExcerptId,
13101 push_to_history: bool,
13102 cx: &mut WindowContext,
13103 ) -> Task<Result<ProjectTransaction>> {
13104 self.update(cx, |project, cx| {
13105 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13106 })
13107 }
13108}
13109
13110fn snippet_completions(
13111 project: &Project,
13112 buffer: &Model<Buffer>,
13113 buffer_position: text::Anchor,
13114 cx: &mut AppContext,
13115) -> Vec<Completion> {
13116 let language = buffer.read(cx).language_at(buffer_position);
13117 let language_name = language.as_ref().map(|language| language.lsp_id());
13118 let snippet_store = project.snippets().read(cx);
13119 let snippets = snippet_store.snippets_for(language_name, cx);
13120
13121 if snippets.is_empty() {
13122 return vec![];
13123 }
13124 let snapshot = buffer.read(cx).text_snapshot();
13125 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13126
13127 let scope = language.map(|language| language.default_scope());
13128 let classifier = CharClassifier::new(scope).for_completion(true);
13129 let mut last_word = chars
13130 .take_while(|c| classifier.is_word(*c))
13131 .collect::<String>();
13132 last_word = last_word.chars().rev().collect();
13133 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13134 let to_lsp = |point: &text::Anchor| {
13135 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13136 point_to_lsp(end)
13137 };
13138 let lsp_end = to_lsp(&buffer_position);
13139 snippets
13140 .into_iter()
13141 .filter_map(|snippet| {
13142 let matching_prefix = snippet
13143 .prefix
13144 .iter()
13145 .find(|prefix| prefix.starts_with(&last_word))?;
13146 let start = as_offset - last_word.len();
13147 let start = snapshot.anchor_before(start);
13148 let range = start..buffer_position;
13149 let lsp_start = to_lsp(&start);
13150 let lsp_range = lsp::Range {
13151 start: lsp_start,
13152 end: lsp_end,
13153 };
13154 Some(Completion {
13155 old_range: range,
13156 new_text: snippet.body.clone(),
13157 label: CodeLabel {
13158 text: matching_prefix.clone(),
13159 runs: vec![],
13160 filter_range: 0..matching_prefix.len(),
13161 },
13162 server_id: LanguageServerId(usize::MAX),
13163 documentation: snippet.description.clone().map(Documentation::SingleLine),
13164 lsp_completion: lsp::CompletionItem {
13165 label: snippet.prefix.first().unwrap().clone(),
13166 kind: Some(CompletionItemKind::SNIPPET),
13167 label_details: snippet.description.as_ref().map(|description| {
13168 lsp::CompletionItemLabelDetails {
13169 detail: Some(description.clone()),
13170 description: None,
13171 }
13172 }),
13173 insert_text_format: Some(InsertTextFormat::SNIPPET),
13174 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13175 lsp::InsertReplaceEdit {
13176 new_text: snippet.body.clone(),
13177 insert: lsp_range,
13178 replace: lsp_range,
13179 },
13180 )),
13181 filter_text: Some(snippet.body.clone()),
13182 sort_text: Some(char::MAX.to_string()),
13183 ..Default::default()
13184 },
13185 confirm: None,
13186 })
13187 })
13188 .collect()
13189}
13190
13191impl CompletionProvider for Model<Project> {
13192 fn completions(
13193 &self,
13194 buffer: &Model<Buffer>,
13195 buffer_position: text::Anchor,
13196 options: CompletionContext,
13197 cx: &mut ViewContext<Editor>,
13198 ) -> Task<Result<Vec<Completion>>> {
13199 self.update(cx, |project, cx| {
13200 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13201 let project_completions = project.completions(buffer, buffer_position, options, cx);
13202 cx.background_executor().spawn(async move {
13203 let mut completions = project_completions.await?;
13204 //let snippets = snippets.into_iter().;
13205 completions.extend(snippets);
13206 Ok(completions)
13207 })
13208 })
13209 }
13210
13211 fn resolve_completions(
13212 &self,
13213 buffer: Model<Buffer>,
13214 completion_indices: Vec<usize>,
13215 completions: Arc<RwLock<Box<[Completion]>>>,
13216 cx: &mut ViewContext<Editor>,
13217 ) -> Task<Result<bool>> {
13218 self.update(cx, |project, cx| {
13219 project.resolve_completions(buffer, completion_indices, completions, cx)
13220 })
13221 }
13222
13223 fn apply_additional_edits_for_completion(
13224 &self,
13225 buffer: Model<Buffer>,
13226 completion: Completion,
13227 push_to_history: bool,
13228 cx: &mut ViewContext<Editor>,
13229 ) -> Task<Result<Option<language::Transaction>>> {
13230 self.update(cx, |project, cx| {
13231 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13232 })
13233 }
13234
13235 fn is_completion_trigger(
13236 &self,
13237 buffer: &Model<Buffer>,
13238 position: language::Anchor,
13239 text: &str,
13240 trigger_in_words: bool,
13241 cx: &mut ViewContext<Editor>,
13242 ) -> bool {
13243 if !EditorSettings::get_global(cx).show_completions_on_input {
13244 return false;
13245 }
13246
13247 let mut chars = text.chars();
13248 let char = if let Some(char) = chars.next() {
13249 char
13250 } else {
13251 return false;
13252 };
13253 if chars.next().is_some() {
13254 return false;
13255 }
13256
13257 let buffer = buffer.read(cx);
13258 let classifier = buffer
13259 .snapshot()
13260 .char_classifier_at(position)
13261 .for_completion(true);
13262 if trigger_in_words && classifier.is_word(char) {
13263 return true;
13264 }
13265
13266 buffer
13267 .completion_triggers()
13268 .iter()
13269 .any(|string| string == text)
13270 }
13271}
13272
13273impl SemanticsProvider for Model<Project> {
13274 fn hover(
13275 &self,
13276 buffer: &Model<Buffer>,
13277 position: text::Anchor,
13278 cx: &mut AppContext,
13279 ) -> Option<Task<Vec<project::Hover>>> {
13280 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13281 }
13282
13283 fn document_highlights(
13284 &self,
13285 buffer: &Model<Buffer>,
13286 position: text::Anchor,
13287 cx: &mut AppContext,
13288 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13289 Some(self.update(cx, |project, cx| {
13290 project.document_highlights(buffer, position, cx)
13291 }))
13292 }
13293
13294 fn definitions(
13295 &self,
13296 buffer: &Model<Buffer>,
13297 position: text::Anchor,
13298 kind: GotoDefinitionKind,
13299 cx: &mut AppContext,
13300 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13301 Some(self.update(cx, |project, cx| match kind {
13302 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13303 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13304 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13305 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13306 }))
13307 }
13308
13309 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13310 // TODO: make this work for remote projects
13311 self.read(cx)
13312 .language_servers_for_buffer(buffer.read(cx), cx)
13313 .any(
13314 |(_, server)| match server.capabilities().inlay_hint_provider {
13315 Some(lsp::OneOf::Left(enabled)) => enabled,
13316 Some(lsp::OneOf::Right(_)) => true,
13317 None => false,
13318 },
13319 )
13320 }
13321
13322 fn inlay_hints(
13323 &self,
13324 buffer_handle: Model<Buffer>,
13325 range: Range<text::Anchor>,
13326 cx: &mut AppContext,
13327 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13328 Some(self.update(cx, |project, cx| {
13329 project.inlay_hints(buffer_handle, range, cx)
13330 }))
13331 }
13332
13333 fn resolve_inlay_hint(
13334 &self,
13335 hint: InlayHint,
13336 buffer_handle: Model<Buffer>,
13337 server_id: LanguageServerId,
13338 cx: &mut AppContext,
13339 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13340 Some(self.update(cx, |project, cx| {
13341 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13342 }))
13343 }
13344
13345 fn range_for_rename(
13346 &self,
13347 buffer: &Model<Buffer>,
13348 position: text::Anchor,
13349 cx: &mut AppContext,
13350 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13351 Some(self.update(cx, |project, cx| {
13352 project.prepare_rename(buffer.clone(), position, cx)
13353 }))
13354 }
13355
13356 fn perform_rename(
13357 &self,
13358 buffer: &Model<Buffer>,
13359 position: text::Anchor,
13360 new_name: String,
13361 cx: &mut AppContext,
13362 ) -> Option<Task<Result<ProjectTransaction>>> {
13363 Some(self.update(cx, |project, cx| {
13364 project.perform_rename(buffer.clone(), position, new_name, cx)
13365 }))
13366 }
13367}
13368
13369fn inlay_hint_settings(
13370 location: Anchor,
13371 snapshot: &MultiBufferSnapshot,
13372 cx: &mut ViewContext<'_, Editor>,
13373) -> InlayHintSettings {
13374 let file = snapshot.file_at(location);
13375 let language = snapshot.language_at(location);
13376 let settings = all_language_settings(file, cx);
13377 settings
13378 .language(language.map(|l| l.name()).as_ref())
13379 .inlay_hints
13380}
13381
13382fn consume_contiguous_rows(
13383 contiguous_row_selections: &mut Vec<Selection<Point>>,
13384 selection: &Selection<Point>,
13385 display_map: &DisplaySnapshot,
13386 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
13387) -> (MultiBufferRow, MultiBufferRow) {
13388 contiguous_row_selections.push(selection.clone());
13389 let start_row = MultiBufferRow(selection.start.row);
13390 let mut end_row = ending_row(selection, display_map);
13391
13392 while let Some(next_selection) = selections.peek() {
13393 if next_selection.start.row <= end_row.0 {
13394 end_row = ending_row(next_selection, display_map);
13395 contiguous_row_selections.push(selections.next().unwrap().clone());
13396 } else {
13397 break;
13398 }
13399 }
13400 (start_row, end_row)
13401}
13402
13403fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13404 if next_selection.end.column > 0 || next_selection.is_empty() {
13405 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13406 } else {
13407 MultiBufferRow(next_selection.end.row)
13408 }
13409}
13410
13411impl EditorSnapshot {
13412 pub fn remote_selections_in_range<'a>(
13413 &'a self,
13414 range: &'a Range<Anchor>,
13415 collaboration_hub: &dyn CollaborationHub,
13416 cx: &'a AppContext,
13417 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13418 let participant_names = collaboration_hub.user_names(cx);
13419 let participant_indices = collaboration_hub.user_participant_indices(cx);
13420 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13421 let collaborators_by_replica_id = collaborators_by_peer_id
13422 .iter()
13423 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13424 .collect::<HashMap<_, _>>();
13425 self.buffer_snapshot
13426 .selections_in_range(range, false)
13427 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13428 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13429 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13430 let user_name = participant_names.get(&collaborator.user_id).cloned();
13431 Some(RemoteSelection {
13432 replica_id,
13433 selection,
13434 cursor_shape,
13435 line_mode,
13436 participant_index,
13437 peer_id: collaborator.peer_id,
13438 user_name,
13439 })
13440 })
13441 }
13442
13443 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13444 self.display_snapshot.buffer_snapshot.language_at(position)
13445 }
13446
13447 pub fn is_focused(&self) -> bool {
13448 self.is_focused
13449 }
13450
13451 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13452 self.placeholder_text.as_ref()
13453 }
13454
13455 pub fn scroll_position(&self) -> gpui::Point<f32> {
13456 self.scroll_anchor.scroll_position(&self.display_snapshot)
13457 }
13458
13459 fn gutter_dimensions(
13460 &self,
13461 font_id: FontId,
13462 font_size: Pixels,
13463 em_width: Pixels,
13464 em_advance: Pixels,
13465 max_line_number_width: Pixels,
13466 cx: &AppContext,
13467 ) -> GutterDimensions {
13468 if !self.show_gutter {
13469 return GutterDimensions::default();
13470 }
13471 let descent = cx.text_system().descent(font_id, font_size);
13472
13473 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13474 matches!(
13475 ProjectSettings::get_global(cx).git.git_gutter,
13476 Some(GitGutterSetting::TrackedFiles)
13477 )
13478 });
13479 let gutter_settings = EditorSettings::get_global(cx).gutter;
13480 let show_line_numbers = self
13481 .show_line_numbers
13482 .unwrap_or(gutter_settings.line_numbers);
13483 let line_gutter_width = if show_line_numbers {
13484 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13485 let min_width_for_number_on_gutter = em_advance * 4.0;
13486 max_line_number_width.max(min_width_for_number_on_gutter)
13487 } else {
13488 0.0.into()
13489 };
13490
13491 let show_code_actions = self
13492 .show_code_actions
13493 .unwrap_or(gutter_settings.code_actions);
13494
13495 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13496
13497 let git_blame_entries_width =
13498 self.git_blame_gutter_max_author_length
13499 .map(|max_author_length| {
13500 // Length of the author name, but also space for the commit hash,
13501 // the spacing and the timestamp.
13502 let max_char_count = max_author_length
13503 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13504 + 7 // length of commit sha
13505 + 14 // length of max relative timestamp ("60 minutes ago")
13506 + 4; // gaps and margins
13507
13508 em_advance * max_char_count
13509 });
13510
13511 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13512 left_padding += if show_code_actions || show_runnables {
13513 em_width * 3.0
13514 } else if show_git_gutter && show_line_numbers {
13515 em_width * 2.0
13516 } else if show_git_gutter || show_line_numbers {
13517 em_width
13518 } else {
13519 px(0.)
13520 };
13521
13522 let right_padding = if gutter_settings.folds && show_line_numbers {
13523 em_width * 4.0
13524 } else if gutter_settings.folds {
13525 em_width * 3.0
13526 } else if show_line_numbers {
13527 em_width
13528 } else {
13529 px(0.)
13530 };
13531
13532 GutterDimensions {
13533 left_padding,
13534 right_padding,
13535 width: line_gutter_width + left_padding + right_padding,
13536 margin: -descent,
13537 git_blame_entries_width,
13538 }
13539 }
13540
13541 pub fn render_fold_toggle(
13542 &self,
13543 buffer_row: MultiBufferRow,
13544 row_contains_cursor: bool,
13545 editor: View<Editor>,
13546 cx: &mut WindowContext,
13547 ) -> Option<AnyElement> {
13548 let folded = self.is_line_folded(buffer_row);
13549
13550 if let Some(crease) = self
13551 .crease_snapshot
13552 .query_row(buffer_row, &self.buffer_snapshot)
13553 {
13554 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13555 if folded {
13556 editor.update(cx, |editor, cx| {
13557 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13558 });
13559 } else {
13560 editor.update(cx, |editor, cx| {
13561 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13562 });
13563 }
13564 });
13565
13566 Some((crease.render_toggle)(
13567 buffer_row,
13568 folded,
13569 toggle_callback,
13570 cx,
13571 ))
13572 } else if folded
13573 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
13574 {
13575 Some(
13576 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
13577 .selected(folded)
13578 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13579 if folded {
13580 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13581 } else {
13582 this.fold_at(&FoldAt { buffer_row }, cx);
13583 }
13584 }))
13585 .into_any_element(),
13586 )
13587 } else {
13588 None
13589 }
13590 }
13591
13592 pub fn render_crease_trailer(
13593 &self,
13594 buffer_row: MultiBufferRow,
13595 cx: &mut WindowContext,
13596 ) -> Option<AnyElement> {
13597 let folded = self.is_line_folded(buffer_row);
13598 let crease = self
13599 .crease_snapshot
13600 .query_row(buffer_row, &self.buffer_snapshot)?;
13601 Some((crease.render_trailer)(buffer_row, folded, cx))
13602 }
13603}
13604
13605impl Deref for EditorSnapshot {
13606 type Target = DisplaySnapshot;
13607
13608 fn deref(&self) -> &Self::Target {
13609 &self.display_snapshot
13610 }
13611}
13612
13613#[derive(Clone, Debug, PartialEq, Eq)]
13614pub enum EditorEvent {
13615 InputIgnored {
13616 text: Arc<str>,
13617 },
13618 InputHandled {
13619 utf16_range_to_replace: Option<Range<isize>>,
13620 text: Arc<str>,
13621 },
13622 ExcerptsAdded {
13623 buffer: Model<Buffer>,
13624 predecessor: ExcerptId,
13625 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
13626 },
13627 ExcerptsRemoved {
13628 ids: Vec<ExcerptId>,
13629 },
13630 ExcerptsEdited {
13631 ids: Vec<ExcerptId>,
13632 },
13633 ExcerptsExpanded {
13634 ids: Vec<ExcerptId>,
13635 },
13636 BufferEdited,
13637 Edited {
13638 transaction_id: clock::Lamport,
13639 },
13640 Reparsed(BufferId),
13641 Focused,
13642 FocusedIn,
13643 Blurred,
13644 DirtyChanged,
13645 Saved,
13646 TitleChanged,
13647 DiffBaseChanged,
13648 SelectionsChanged {
13649 local: bool,
13650 },
13651 ScrollPositionChanged {
13652 local: bool,
13653 autoscroll: bool,
13654 },
13655 Closed,
13656 TransactionUndone {
13657 transaction_id: clock::Lamport,
13658 },
13659 TransactionBegun {
13660 transaction_id: clock::Lamport,
13661 },
13662 Reloaded,
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}